Product Description
Excellent powder metallurgy parts metallic sintered parts
We could offer various powder metallurgy parts including iron based and copper based with top quality and cheapest price, please only send the drawing or sample to us, we will according to customer’s requirement to make it. if you are interested in our product, please do not hesitate to contact us, we would like to offer the top quality and best service for you. thank you!
How do We Work with Our Clients
1. For a design expert or a big company with your own engineering team: we prefer to receive a fully RFQ pack from you including drawing, 3D model, quantity, pictures;
2. For a start-up company owner or green hand for engineering: just send an idea that you want to try, you don’t even need to know what casting is;
3. Our sales will reply you within 24 hours to confirm further details and give the estimated quote time;
4. Our engineering team will evaluate your inquiry and provide our offer within next 1~3 working days.
5. We can arrange a technical communication meeting with you and our engineers together anytime if required.
| Place of origin: | Jangsu,China |
| Type: | Powder metallurgy sintering |
| Spare parts type: | Powder metallurgy parts |
| Machinery Test report: | Provided |
| Material: | Iron,stainless,steel,copper |
| Key selling points: | Quality assurance |
| Mould type: | Tungsten steel |
| Material standard: | MPIF 35,DIN 3571,JIS Z 2550 |
| Application: | Small home appliances,Lockset,Electric tool, automobile, |
| Brand Name: | OEM SERVICE |
| Plating: | Customized |
| After-sales Service: | Online support |
| Processing: | Powder Metallurgr,CNC Machining |
| Powder Metallurgr: | High frequency quenching, oil immersion |
| Quality Control: | 100% inspection |
The Advantage of Powder Metallurgy Process
1. Cost effective
The final products can be compacted with powder metallurgy method ,and no need or can shorten the processing of machine .It can save material greatly and reduce the production cost .
2. Complex shapes
Powder metallurgy allows to obtain complex shapes directly from the compacting tooling ,without any machining operation ,like teeth ,splines ,profiles ,frontal geometries etc.
3. High precision
Achievable tolerances in the perpendicular direction of compacting are typically IT 8-9 as sintered,improvable up to IT 5-7 after sizing .Additional machining operations can improve the precision .
4. Self-lubrication
The interconnected porosity of the material can be filled with oils ,obtaining then a self-lubricating bearing :the oil provides constant lubrication between bearing and shaft ,and the system does not need any additional external lubricant .
5. Green technology
The manufacturing process of sintered components is certified as ecological ,because the material waste is very low ,the product is recyclable ,and the energy efficiency is good because the material is not molten.
FAQ
Q1: What is the type of payment?
A: Usually you should prepay 50% of the total amount. The balance should be pay off before shipment.
Q2: How to guarantee the high quality?
A: 100% inspection. We have Carl Zeiss high-precision testing equipment and testing department to make sure every product of size,appearance and pressure test are good.
Q3: How long will you give me the reply?
A: we will contact you in 12 hours as soon as we can.
Q4. How about your delivery time?
A: Generally, it will take 25 to 35 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order. and if the item was non standard, we have to consider extra 10-15days for tooling/mould made.
Q5. Can you produce according to the samples or drawings?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.
Q6: How about tooling Charge?
A: Tooling charge only charge once when first order, all future orders would not charge again even tooling repair or under maintance.
Q7: What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.
Q8: How do you make our business long-term and good relationship?
A: 1. We keep good quality and competitive price to ensure our customers benefit ;
2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
Noise and Vibration Issues with Fluid Couplings
Fluid couplings are generally designed to operate smoothly and quietly, but certain factors may lead to noise or vibration issues in some cases:
- Imbalanced Components: If the components of the fluid coupling, such as the impeller and runner, are not balanced properly, it can result in vibrations during operation. Regular maintenance and balancing can help mitigate this issue.
- High Operating Speeds: At high speeds, fluid couplings can generate more noise and vibration due to increased fluid turbulence. Using damping techniques or selecting appropriate coupling types can help reduce these effects.
- Fluid Level: Incorrect fluid levels in the coupling can lead to inadequate lubrication and cause noise during operation. Regularly checking and maintaining the fluid level can prevent such problems.
- Misalignment: Misalignment between the driving and driven shafts can result in increased noise and vibration. Proper alignment during installation is essential to avoid this issue.
- Fluid Characteristics: The choice of fluid can also impact noise and vibration levels. Using fluids with appropriate viscosity and lubricating properties can help achieve smoother and quieter operation.
- Aging or Contaminated Fluids: Over time, the fluid in the coupling may degrade or become contaminated, leading to increased friction and noise. Regular fluid replacement and maintenance can prevent this problem.
Addressing noise and vibration issues with fluid couplings involves proper installation, regular maintenance, and using high-quality components and fluids. Consulting with manufacturers or experts can help identify and resolve any specific noise or vibration concerns in the power transmission system.
Safety Features in Modern Fluid Coupling Designs
Modern fluid coupling designs incorporate various safety features to ensure the reliable and secure operation of the equipment. Here are some of the key safety features commonly found in modern fluid couplings:
1. Overload Protection: One of the primary safety features in modern fluid couplings is overload protection. In the event of an abrupt increase in load or torque, the fluid coupling slips, absorbing the excess torque and preventing damage to the connected equipment. This feature safeguards against mechanical failures and protects the machinery.
2. Torque Limiting: Fluid couplings are designed with torque limiting capabilities, which allow them to control the maximum torque transmitted to the driven equipment. By setting the torque limit within a safe operating range, the fluid coupling prevents excessive stresses on the system, ensuring longevity and reliability.
3. Automatic Overheat Protection: Some fluid couplings are equipped with automatic overheat protection mechanisms. If the fluid coupling’s operating temperature exceeds a predefined threshold, the protection system disengages the coupling temporarily until the temperature returns to a safe level. This prevents damage due to overheating and enhances safety.
4. Backstop or Holdback Device: In certain applications where reverse rotation is a concern, fluid couplings may include a backstop or holdback device. This feature prevents the driven equipment from rotating in the opposite direction, enhancing safety during sudden stops or reversals.
5. Fail-Safe Operation: Many modern fluid couplings are designed to operate in a fail-safe manner. In the event of any malfunction or failure, the coupling defaults to a safe mode, allowing the equipment to continue operating at reduced capacity or gradually shut down, avoiding catastrophic failures.
6. Seal Protection: Proper sealing is crucial for fluid couplings, especially in harsh environments. Modern designs often include advanced seal protection features to prevent oil leakage and contamination, ensuring environmental safety and reducing maintenance requirements.
7. Low Noise and Vibration: Reduced noise and vibration levels in fluid couplings contribute to operator safety and comfort. The damping properties of the fluid coupling help minimize vibrations, creating a quieter and more stable working environment.
8. Emergency Stop Capability: Some fluid couplings may have emergency stop provisions to quickly disengage the coupling in critical situations. This feature allows for rapid shutdowns in emergencies, preventing accidents and protecting personnel.
9. Condition Monitoring: Advanced fluid coupling designs may include condition monitoring capabilities. This allows operators to monitor the coupling’s performance, temperature, and other parameters in real-time, facilitating predictive maintenance and avoiding unexpected failures.
Overall, the incorporation of these safety features in modern fluid coupling designs ensures the protection of machinery, operators, and the surrounding environment. These safety measures enhance the reliability, efficiency, and longevity of equipment, making fluid couplings a safe and valuable choice for power transmission in various industrial applications.
Controlling Torque and Rotational Speed with Fluid Couplings
A fluid coupling plays a crucial role in controlling torque and rotational speed in power transmission systems. The principle behind its operation allows for smooth torque transmission while offering some level of speed control:
- Torque Transmission: When power is applied to the input side (also known as the driving side) of the fluid coupling, the impeller starts to rotate and accelerates the transmission fluid inside the housing. The kinetic energy of the moving fluid creates a rotating flow pattern that transfers torque to the output side (also known as the driven side) of the coupling. This torque transfer enables the connected machinery or equipment to start smoothly without any shock loading.
- Slip: In a fluid coupling, there is always a slight difference in speed between the input and output sides due to the viscous nature of the fluid. This speed difference is known as slip. The slip allows the fluid coupling to protect the connected components from sudden torque spikes and vibrations. If the output side experiences an abrupt load increase or jam, the slip absorbs the excess torque, preventing damage to the drivetrain.
- Speed Control: While fluid couplings are not as efficient in speed control as variable-speed drives, they do offer some inherent speed control characteristics. The amount of slip in the fluid coupling affects the output speed relative to the input speed. By adjusting the fill level of the fluid coupling or using different fluid viscosities, it is possible to fine-tune the speed at which the output shaft rotates. However, it’s important to note that this speed control is limited compared to other speed control mechanisms.
Overall, fluid couplings provide a reliable and efficient means of controlling torque during power transmission. Their ability to dampen torsional vibrations and provide overload protection makes them suitable for various applications where smooth torque transfer and protection against shock loads are essential.
editor by CX 2024-05-09
China Good quality Stainless Steel Coupling Gear Rigid Roller Chain Fluid Tyre Grid Jaw Spider HRC Nm Motor Flange Gear Pump Rubber Spline Shaft Flexible Universal Joint Coupling
Product Description
Stainless Steel Coupling Gear Rigid Roller Chain Fluid Tyre Grid Jaw Spider HRC Nm Motor Flange Gear Pump Rubber Spline Shaft Flexible Universal Joint Coupling
Product Description
Main products
Coupling refers to a device that connects 2 shafts or shafts and rotating parts, rotates together during the transmission of motion and power, and does not disengage under normal conditions. Sometimes it is also used as a safety device to prevent the connected parts from bearing excessive load, which plays the role of overload protection.
Couplings can be divided into rigid couplings and flexible couplings.
Rigid couplings do not have buffering property and the ability to compensate the relative displacement of 2 axes. It is required that the 2 axes be strictly aligned. However, such couplings are simple in structure, low in manufacturing cost, convenient in assembly and disassembly, and maintenance, which can ensure that the 2 axes are relatively neutral, have large transmission torque, and are widely used. Commonly used are flange coupling, sleeve coupling and jacket coupling.
Flexible coupling can also be divided into flexible coupling without elastic element and flexible coupling with elastic element. The former type only has the ability to compensate the relative displacement of 2 axes, but cannot cushion and reduce vibration. Common types include slider coupling, gear coupling, universal coupling and chain coupling; The latter type contains elastic elements. In addition to the ability to compensate the relative displacement of 2 axes, it also has the functions of buffering and vibration reduction. However, due to the strength of elastic elements, the transmitted torque is generally inferior to that of flexible couplings without elastic elements. Common types include elastic sleeve pin couplings, elastic pin couplings, quincunx couplings, tire type couplings, serpentine spring couplings, spring couplings, etc
Coupling performance
1) Mobility. The movability of the coupling refers to the ability to compensate the relative displacement of 2 rotating components. Factors such as manufacturing and installation errors between connected components, temperature changes during operation and deformation under load all put CHINAMFG requirements for mobility. The movable performance compensates or alleviates the additional load between shafts, bearings, couplings and other components caused by the relative displacement between rotating components.
(2) Buffering. For the occasions where the load is often started or the working load changes, the coupling shall be equipped with elastic elements that play the role of cushioning and vibration reduction to protect the prime mover and the working machine from little or no damage.
(3) Safe, reliable, with sufficient strength and service life.
(4) Simple structure, easy to assemble, disassemble and maintain.
How to select the appropriate coupling type
The following items should be considered when selecting the coupling type.
1. The size and nature of the required transmission torque, the requirements for buffering and damping functions, and whether resonance may occur.
2. The relative displacement of the axes of the 2 shafts is caused by manufacturing and assembly errors, shaft load and thermal expansion deformation, and relative movement between components.
3. Permissible overall dimensions and installation methods, and necessary operating space for assembly, adjustment and maintenance. For large couplings, they should be able to be disassembled without axial movement of the shaft.
In addition, the working environment, service life, lubrication, sealing, economy and other conditions should also be considered, and a suitable coupling type should be selected by referring to the characteristics of various couplings.
If you cannot determine the type, you can contact our professional engineer
Related products
Company Profile
Our Equipments
Main production equipment:
Large lathe, surface grinder, milling machine, gear shaper, spline milling machine, horizontal broaching machine, gear hobbing machine, shaper, slotting machine, bench drilling machine, radial drilling machine, boring machine, band sawing machine, horizontal lathe, end milling machine, crankshaft grinder, CNC milling machine, casting equipment, etc.
Inspection equipment:
Dynamic balance tester, high-speed intelligent carbon and sulfur analyzer, Blochon optical hardness tester, Leeb hardness tester, magnetic yoke flaw detector, special detection, modular fixture (self-made), etc.
Machining equipments
Heat equipment
Our Factory
Application – Photos from our partner customers
Company Profile
Our leading products are mechanical transmission basic parts – couplings, mainly including universal couplings, drum gear couplings, elastic couplings and other 3 categories of more than 30 series of varieties. It is widely used in metallurgical steel rolling, wind power, hydropower, mining, engineering machinery, petrochemical, lifting, paper making, rubber, rail transit, shipbuilding and marine engineering and other industries.
Our factory takes the basic parts of national standards as the benchmark, has more than 40 years of coupling production experience, takes “scientific management, pioneering and innovation, ensuring quality and customer satisfaction” as the quality policy, and aims to continuously provide users with satisfactory products and services. The production is guided by reasonable process, and the ISO9001:2015 quality management system standard is strictly implemented. We adhere to the principle of continuous improvement and innovation of coupling products. In recent years, it has successfully developed 10 national patent products such as SWF cross shaft universal coupling, among which the double cross shaft universal joint has won the national invention patent, SWF cross shaft universal coupling has won the new product award of China’s general mechanical parts coupling industry and the ZHangZhoug Province new product science and technology project.
Our factory has strong technical force, excellent process equipment, complete professional production equipment, perfect detection means, excellent after-sales service, various products and complete specifications. At the same time, we can provide the design and manufacturing of special non-standard products according to the needs of users. Our products sell well at home and abroad, and are trusted by the majority of users. We sincerely welcome friends from all walks of life at home and abroad to visit and negotiate for common development.p
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
Factors to Consider when Choosing between a Fluid Coupling and a VFD (Variable Frequency Drive)
When selecting between a fluid coupling and a VFD for a power transmission application, several factors should be taken into account:
- Speed Control Requirements: Consider whether variable speed control is essential for your application. VFDs are excellent for applications that require precise and flexible speed control, while fluid couplings typically offer limited speed control capabilities.
- Energy Efficiency: Evaluate the energy efficiency requirements of your system. VFDs can offer higher energy efficiency by allowing the motor to run at optimal speeds, whereas fluid couplings introduce some energy losses due to slip.
- Starting Torque: Examine the starting torque requirements of the driven load. Fluid couplings can provide high starting torque and smooth acceleration, which may be advantageous for applications with high inertia loads.
- Overload Protection: Consider the need for overload protection. Fluid couplings inherently provide some protection against shock loads by allowing slip, while VFDs may require additional protective mechanisms.
- Maintenance and Service: Evaluate the maintenance and service requirements of both systems. Fluid couplings are generally simpler and require less maintenance compared to VFDs, which involve electronic components.
- Cost: Compare the initial and long-term costs of both options. VFDs often have higher upfront costs but can provide significant energy savings in the long run, while fluid couplings may have lower initial costs but could lead to higher energy consumption.
Ultimately, the choice between a fluid coupling and a VFD depends on the specific needs of your application. Each option has its advantages and limitations, and a thorough analysis of the operating conditions and performance requirements will help determine the most suitable solution for your system.
Role of Fluid Coupling in Torque Multiplication and Power Transfer
A fluid coupling is a mechanical device used to transmit power between two shafts without direct physical contact. It operates on the principles of fluid dynamics and hydrokinetics to enable torque multiplication and efficient power transfer. Here’s how a fluid coupling achieves these functions:
- Hydrodynamic Torque Converter: A fluid coupling is essentially a hydrodynamic torque converter. When the input shaft (driving shaft) rotates, it sets the transmission fluid inside the coupling in motion. The fluid experiences centrifugal forces, creating a high-velocity zone near the outer circumference and a low-velocity zone near the center. This velocity difference generates torque in the fluid coupling, allowing power to be transmitted from the input shaft to the output shaft (driven shaft).
- Torque Multiplication: One of the primary advantages of a fluid coupling is its ability to provide torque multiplication. During startup or when the load on the driven shaft is initially low, the fluid coupling slips to some extent, which allows the input shaft to rotate at a higher speed than the output shaft. This speed difference results in torque multiplication, enabling the fluid coupling to handle higher loads during acceleration or heavy starting conditions.
- Power Transfer Efficiency: Fluid couplings offer high power transfer efficiency due to the hydrodynamic nature of their operation. The smooth and continuous transmission of power through the fluid medium minimizes energy losses and mechanical wear, leading to more efficient power transmission compared to mechanical clutches or direct-coupling methods.
- Load Adaptability: Fluid couplings automatically adjust their slip to adapt to changing load conditions. When the load on the output shaft increases, the fluid coupling slips more, allowing the output shaft to slow down slightly and match the load demand. This load adaptability ensures smooth and stable power transfer even under varying operating conditions.
Fluid couplings are commonly used in applications where torque multiplication and smooth power transfer are essential. They find widespread use in heavy machinery, mining equipment, conveyors, crushers, marine propulsion systems, and many other industrial applications. By efficiently transferring power while providing torque multiplication, fluid couplings help optimize the performance and longevity of power transmission systems.
Proper selection of the fluid coupling based on the application’s torque and power requirements is crucial to ensure optimal torque multiplication and power transfer. Additionally, regular maintenance and monitoring of the fluid coupling’s condition are essential to maintain its efficiency and reliability over time.
Selecting the Right Size of Fluid Coupling for Your Application
To ensure optimal performance and efficiency, it’s essential to choose the right size of fluid coupling for a specific application. Here are the key steps in the selection process:
- Identify the Application Requirements: Understand the torque and power requirements of your application. Determine the maximum torque and power that the fluid coupling needs to transmit to meet the operational demands of the machinery or equipment.
- Check the Speed Range: Consider the speed range of your application. Ensure that the fluid coupling can operate effectively within the desired speed range, providing adequate torque transfer across the entire speed spectrum.
- Consider the Fluid Coupling Type: Choose the appropriate type of fluid coupling based on the specific needs of your application. Hydrodynamic fluid couplings are suitable for applications requiring smooth and gradual torque transmission, while constant-fill fluid couplings are more suitable for applications where some slip is acceptable.
- Calculate the Service Factor: Determine the service factor, which accounts for any additional loads or impacts the fluid coupling may experience during operation. Multiply the maximum torque requirement by the service factor to obtain the design torque.
- Refer to Manufacturer Data: Consult the manufacturer’s data sheets and specifications for various fluid coupling models. Compare the design torque with the torque capacity of different fluid coupling sizes to find the most suitable match for your application.
- Consider Safety Margins: It’s advisable to apply safety margins to ensure reliable operation. Select a fluid coupling with a torque capacity higher than the calculated design torque to account for potential variations in load or operating conditions.
- Verify Space Constraints: Ensure that the selected fluid coupling fits within the available space in your machinery or equipment, considering any installation restrictions or dimensional limitations.
By following these steps and carefully evaluating the requirements of your specific application, you can select the right size of fluid coupling that will deliver optimal performance, efficiency, and reliability.
editor by CX 2024-04-29
China Hot selling Flange Cast Iron Coupling Steel Universal Joint Cardan Pump Rubber Motor Disc Curved Tooth Flex Rigid Drive Shaft Nm Yox Fluid Jaw Flexible Chain Gear Couplings
Product Description
Excellent powder metallurgy parts metallic sintered parts
We could offer various powder metallurgy parts including iron based and copper based with top quality and cheapest price, please only send the drawing or sample to us, we will according to customer’s requirement to make it. if you are interested in our product, please do not hesitate to contact us, we would like to offer the top quality and best service for you. thank you!
How do We Work with Our Clients
1. For a design expert or a big company with your own engineering team: we prefer to receive a fully RFQ pack from you including drawing, 3D model, quantity, pictures;
2. For a start-up company owner or green hand for engineering: just send an idea that you want to try, you don’t even need to know what casting is;
3. Our sales will reply you within 24 hours to confirm further details and give the estimated quote time;
4. Our engineering team will evaluate your inquiry and provide our offer within next 1~3 working days.
5. We can arrange a technical communication meeting with you and our engineers together anytime if required.
| Place of origin: | Jangsu,China |
| Type: | Powder metallurgy sintering |
| Spare parts type: | Powder metallurgy parts |
| Machinery Test report: | Provided |
| Material: | Iron,stainless,steel,copper |
| Key selling points: | Quality assurance |
| Mould type: | Tungsten steel |
| Material standard: | MPIF 35,DIN 3571,JIS Z 2550 |
| Application: | Small home appliances,Lockset,Electric tool, automobile, |
| Brand Name: | OEM SERVICE |
| Plating: | Customized |
| After-sales Service: | Online support |
| Processing: | Powder Metallurgr,CNC Machining |
| Powder Metallurgr: | High frequency quenching, oil immersion |
| Quality Control: | 100% inspection |
The Advantage of Powder Metallurgy Process
1. Cost effective
The final products can be compacted with powder metallurgy method ,and no need or can shorten the processing of machine .It can save material greatly and reduce the production cost .
2. Complex shapes
Powder metallurgy allows to obtain complex shapes directly from the compacting tooling ,without any machining operation ,like teeth ,splines ,profiles ,frontal geometries etc.
3. High precision
Achievable tolerances in the perpendicular direction of compacting are typically IT 8-9 as sintered,improvable up to IT 5-7 after sizing .Additional machining operations can improve the precision .
4. Self-lubrication
The interconnected porosity of the material can be filled with oils ,obtaining then a self-lubricating bearing :the oil provides constant lubrication between bearing and shaft ,and the system does not need any additional external lubricant .
5. Green technology
The manufacturing process of sintered components is certified as ecological ,because the material waste is very low ,the product is recyclable ,and the energy efficiency is good because the material is not molten.
FAQ
Q1: What is the type of payment?
A: Usually you should prepay 50% of the total amount. The balance should be pay off before shipment.
Q2: How to guarantee the high quality?
A: 100% inspection. We have Carl Zeiss high-precision testing equipment and testing department to make sure every product of size,appearance and pressure test are good.
Q3: How long will you give me the reply?
A: we will contact you in 12 hours as soon as we can.
Q4. How about your delivery time?
A: Generally, it will take 25 to 35 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order. and if the item was non standard, we have to consider extra 10-15days for tooling/mould made.
Q5. Can you produce according to the samples or drawings?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.
Q6: How about tooling Charge?
A: Tooling charge only charge once when first order, all future orders would not charge again even tooling repair or under maintance.
Q7: What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.
Q8: How do you make our business long-term and good relationship?
A: 1. We keep good quality and competitive price to ensure our customers benefit ;
2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
How does a Fluid Coupling Handle Shock Loads and Torsional Vibrations?
Fluid couplings are designed to handle shock loads and torsional vibrations in power transmission systems due to their unique operating principle:
- Shock Load Handling: When a sudden or high-impact load is applied to the output shaft, the fluid coupling allows a certain degree of slippage between the impeller and the runner. This slippage acts as a buffer, absorbing the shock and protecting the connected machinery from abrupt torque changes. As a result, fluid couplings are effective at preventing damage to the drivetrain and other components during abrupt starts and stops.
- Torsional Vibration Damping: Torsional vibrations can occur in rotating systems, leading to harmful vibrations that can affect the overall stability and performance of the machinery. Fluid couplings help dampen these torsional vibrations by providing a smooth and controlled power transmission. The hydraulic fluid inside the coupling acts as a viscous damper, absorbing and dissipating the energy of torsional vibrations, thus reducing the impact on the connected equipment.
By effectively managing shock loads and torsional vibrations, fluid couplings contribute to improved reliability and reduced wear and tear on the machinery, leading to longer equipment life and enhanced overall performance.
Fluid Couplings in Pumps and Compressors
Yes, fluid couplings can be effectively used in pumps and compressors to optimize their operation and improve overall efficiency. Here’s how fluid couplings are beneficial in these applications:
1. Smooth Starting: Fluid couplings provide a soft-start capability, which is particularly advantageous for pumps and compressors. During startup, the fluid coupling allows the pump or compressor to gradually reach the desired operating speed, reducing mechanical stress on the equipment and preventing sudden torque spikes.
2. Overload Protection: Pumps and compressors may experience sudden changes in load due to variations in fluid demand or system pressure. A fluid coupling acts as a torque limiter and protects the connected equipment from damage during such overload conditions. It slips and absorbs excess torque, preventing mechanical failures and downtime.
3. Torque Control: Fluid couplings enable precise control over the torque transmitted to the pump or compressor. This feature allows operators to adjust the output speed and torque to match the specific requirements of the application, ensuring optimal performance and energy efficiency.
4. Vibration Damping: The inherent damping properties of fluid couplings help in reducing vibrations in pump and compressor systems. This not only extends the life of the mechanical components but also enhances the reliability of the entire system.
5. Energy Efficiency: By eliminating the need for direct mechanical connections and providing smooth acceleration, fluid couplings contribute to energy savings in pumps and compressors. The reduction in shock loads and vibrations leads to lower energy consumption and improved overall efficiency.
6. Heat Dissipation: Continuous operations in pumps and compressors can generate heat, potentially affecting the equipment’s performance. Fluid couplings have the ability to absorb and dissipate heat, maintaining proper operating temperatures and ensuring consistent performance.
7. System Protection: In addition to overload protection, fluid couplings also protect pumps and compressors from torque fluctuations, which can occur during transient conditions. This protection prevents mechanical damage and enhances the longevity of the equipment.
Overall, fluid couplings offer several advantages in pump and compressor applications, including smooth starting, overload protection, torque control, vibration damping, energy efficiency, heat dissipation, and system protection. These benefits make fluid couplings a valuable component in optimizing the performance and reliability of pumps and compressors in various industrial settings.
Selecting the Right Size of Fluid Coupling for Your Application
To ensure optimal performance and efficiency, it’s essential to choose the right size of fluid coupling for a specific application. Here are the key steps in the selection process:
- Identify the Application Requirements: Understand the torque and power requirements of your application. Determine the maximum torque and power that the fluid coupling needs to transmit to meet the operational demands of the machinery or equipment.
- Check the Speed Range: Consider the speed range of your application. Ensure that the fluid coupling can operate effectively within the desired speed range, providing adequate torque transfer across the entire speed spectrum.
- Consider the Fluid Coupling Type: Choose the appropriate type of fluid coupling based on the specific needs of your application. Hydrodynamic fluid couplings are suitable for applications requiring smooth and gradual torque transmission, while constant-fill fluid couplings are more suitable for applications where some slip is acceptable.
- Calculate the Service Factor: Determine the service factor, which accounts for any additional loads or impacts the fluid coupling may experience during operation. Multiply the maximum torque requirement by the service factor to obtain the design torque.
- Refer to Manufacturer Data: Consult the manufacturer’s data sheets and specifications for various fluid coupling models. Compare the design torque with the torque capacity of different fluid coupling sizes to find the most suitable match for your application.
- Consider Safety Margins: It’s advisable to apply safety margins to ensure reliable operation. Select a fluid coupling with a torque capacity higher than the calculated design torque to account for potential variations in load or operating conditions.
- Verify Space Constraints: Ensure that the selected fluid coupling fits within the available space in your machinery or equipment, considering any installation restrictions or dimensional limitations.
By following these steps and carefully evaluating the requirements of your specific application, you can select the right size of fluid coupling that will deliver optimal performance, efficiency, and reliability.
editor by CX 2024-04-17
China Custom Flange Cast Iron Coupling Steel Universal Joint Cardan Pump Rubber Motor Disc Curved Tooth Flex Rigid Drive Shaft Nm Yox Fluid Jaw Flexible Chain Gear Couplings
Product Description
Excellent powder metallurgy parts metallic sintered parts
We could offer various powder metallurgy parts including iron based and copper based with top quality and cheapest price, please only send the drawing or sample to us, we will according to customer’s requirement to make it. if you are interested in our product, please do not hesitate to contact us, we would like to offer the top quality and best service for you. thank you!
How do We Work with Our Clients
1. For a design expert or a big company with your own engineering team: we prefer to receive a fully RFQ pack from you including drawing, 3D model, quantity, pictures;
2. For a start-up company owner or green hand for engineering: just send an idea that you want to try, you don’t even need to know what casting is;
3. Our sales will reply you within 24 hours to confirm further details and give the estimated quote time;
4. Our engineering team will evaluate your inquiry and provide our offer within next 1~3 working days.
5. We can arrange a technical communication meeting with you and our engineers together anytime if required.
| Place of origin: | Jangsu,China |
| Type: | Powder metallurgy sintering |
| Spare parts type: | Powder metallurgy parts |
| Machinery Test report: | Provided |
| Material: | Iron,stainless,steel,copper |
| Key selling points: | Quality assurance |
| Mould type: | Tungsten steel |
| Material standard: | MPIF 35,DIN 3571,JIS Z 2550 |
| Application: | Small home appliances,Lockset,Electric tool, automobile, |
| Brand Name: | OEM SERVICE |
| Plating: | Customized |
| After-sales Service: | Online support |
| Processing: | Powder Metallurgr,CNC Machining |
| Powder Metallurgr: | High frequency quenching, oil immersion |
| Quality Control: | 100% inspection |
The Advantage of Powder Metallurgy Process
1. Cost effective
The final products can be compacted with powder metallurgy method ,and no need or can shorten the processing of machine .It can save material greatly and reduce the production cost .
2. Complex shapes
Powder metallurgy allows to obtain complex shapes directly from the compacting tooling ,without any machining operation ,like teeth ,splines ,profiles ,frontal geometries etc.
3. High precision
Achievable tolerances in the perpendicular direction of compacting are typically IT 8-9 as sintered,improvable up to IT 5-7 after sizing .Additional machining operations can improve the precision .
4. Self-lubrication
The interconnected porosity of the material can be filled with oils ,obtaining then a self-lubricating bearing :the oil provides constant lubrication between bearing and shaft ,and the system does not need any additional external lubricant .
5. Green technology
The manufacturing process of sintered components is certified as ecological ,because the material waste is very low ,the product is recyclable ,and the energy efficiency is good because the material is not molten.
FAQ
Q1: What is the type of payment?
A: Usually you should prepay 50% of the total amount. The balance should be pay off before shipment.
Q2: How to guarantee the high quality?
A: 100% inspection. We have Carl Zeiss high-precision testing equipment and testing department to make sure every product of size,appearance and pressure test are good.
Q3: How long will you give me the reply?
A: we will contact you in 12 hours as soon as we can.
Q4. How about your delivery time?
A: Generally, it will take 25 to 35 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order. and if the item was non standard, we have to consider extra 10-15days for tooling/mould made.
Q5. Can you produce according to the samples or drawings?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.
Q6: How about tooling Charge?
A: Tooling charge only charge once when first order, all future orders would not charge again even tooling repair or under maintance.
Q7: What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.
Q8: How do you make our business long-term and good relationship?
A: 1. We keep good quality and competitive price to ensure our customers benefit ;
2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
Handling Overloads and Stall Conditions in Fluid Couplings
A fluid coupling is designed to handle overloads and stall conditions in power transmission systems. When an overload or stall occurs, the fluid coupling utilizes its unique operating principle to protect the drivetrain and the connected machinery:
- Slip Feature: One of the key characteristics of a fluid coupling is its ability to slip at high torque loads. When an overload situation arises, the fluid coupling allows some relative motion between the input and output sides, known as slip. This slip absorbs the excess torque and prevents it from being transferred to the driven equipment, effectively protecting it from damage.
- Fluid Circulation: During normal operation, the fluid inside the coupling circulates smoothly between the impeller and turbine, transmitting torque with minimal losses. However, when an overload or stall condition occurs, the fluid circulation may become turbulent, generating heat in the process. This heat dissipation helps in absorbing and dissipating the excess energy, preventing the transmission system from experiencing sudden stress.
- Automatic Reconnection: After an overload or stall condition, once the excess torque is dissipated through slip and heat, the fluid coupling automatically reconnects the input and output sides, resuming the power transmission. This automatic reconnection ensures that the system returns to normal operation once the overload situation is resolved.
- Sturdy Construction: Fluid couplings are designed with robust and durable materials to withstand high torque and thermal stresses during overload conditions. The strong construction ensures that the fluid coupling remains reliable and operational even after multiple overload events.
Overall, a fluid coupling’s ability to handle overloads and stall conditions makes it a reliable and essential component in various industrial applications. By providing overload protection and slip characteristics, fluid couplings help prevent costly damage to equipment, increase operational safety, and contribute to the longevity of the entire power transmission system.
Fluid Couplings in Pumps and Compressors
Yes, fluid couplings can be effectively used in pumps and compressors to optimize their operation and improve overall efficiency. Here’s how fluid couplings are beneficial in these applications:
1. Smooth Starting: Fluid couplings provide a soft-start capability, which is particularly advantageous for pumps and compressors. During startup, the fluid coupling allows the pump or compressor to gradually reach the desired operating speed, reducing mechanical stress on the equipment and preventing sudden torque spikes.
2. Overload Protection: Pumps and compressors may experience sudden changes in load due to variations in fluid demand or system pressure. A fluid coupling acts as a torque limiter and protects the connected equipment from damage during such overload conditions. It slips and absorbs excess torque, preventing mechanical failures and downtime.
3. Torque Control: Fluid couplings enable precise control over the torque transmitted to the pump or compressor. This feature allows operators to adjust the output speed and torque to match the specific requirements of the application, ensuring optimal performance and energy efficiency.
4. Vibration Damping: The inherent damping properties of fluid couplings help in reducing vibrations in pump and compressor systems. This not only extends the life of the mechanical components but also enhances the reliability of the entire system.
5. Energy Efficiency: By eliminating the need for direct mechanical connections and providing smooth acceleration, fluid couplings contribute to energy savings in pumps and compressors. The reduction in shock loads and vibrations leads to lower energy consumption and improved overall efficiency.
6. Heat Dissipation: Continuous operations in pumps and compressors can generate heat, potentially affecting the equipment’s performance. Fluid couplings have the ability to absorb and dissipate heat, maintaining proper operating temperatures and ensuring consistent performance.
7. System Protection: In addition to overload protection, fluid couplings also protect pumps and compressors from torque fluctuations, which can occur during transient conditions. This protection prevents mechanical damage and enhances the longevity of the equipment.
Overall, fluid couplings offer several advantages in pump and compressor applications, including smooth starting, overload protection, torque control, vibration damping, energy efficiency, heat dissipation, and system protection. These benefits make fluid couplings a valuable component in optimizing the performance and reliability of pumps and compressors in various industrial settings.
Maintenance Practices for Fluid Couplings
Regular maintenance is crucial to keep a fluid coupling in good condition and ensure its longevity. Here are the key maintenance practices:
- Fluid Level Checks: Regularly inspect the fluid level in the fluid coupling. Maintain the fluid level within the recommended range specified by the manufacturer.
- Fluid Quality: Monitor the quality of the fluid in the fluid coupling. Check for any signs of contamination, degradation, or discoloration. If the fluid shows signs of wear, replace it following the manufacturer’s guidelines.
- Fluid Replacement: As part of routine maintenance, consider replacing the fluid periodically, even if there are no visible signs of wear. Fluid replacement intervals may vary based on the application and operating conditions.
- Lubrication: Ensure proper lubrication of the fluid coupling components, including bearings and seals, as specified by the manufacturer.
- Inspections: Regularly inspect the fluid coupling for any signs of leaks, damage, or unusual noises during operation. Address any issues promptly to prevent further damage.
- Alignment: Verify that the fluid coupling is correctly aligned with the connected equipment. Misalignment can lead to premature wear and reduced performance.
- Coupling Bolts: Check and tighten the coupling bolts as needed to maintain proper coupling integrity.
- Temperature Monitoring: Monitor the operating temperature of the fluid coupling. Elevated temperatures may indicate an issue that needs attention.
- Vibration Analysis: Periodically perform vibration analysis to detect any abnormal vibrations that could indicate potential problems.
- Manufacturer Guidelines: Follow the maintenance guidelines and recommendations provided by the fluid coupling manufacturer.
By adhering to these maintenance practices, you can extend the life of your fluid coupling, improve its reliability, and minimize the risk of unexpected failures.
editor by CX 2024-03-29
China Custom Stainless Steel Coupling Gear Rigid Roller Chain Fluid Tyre Grid Jaw Spider HRC Nm Motor Flange Gear Pump Rubber Spline Shaft Flexible Universal Joint Coupling
Product Description
High Demand Custom Aluminum Precise Milling Spare Lathe Machining Cnc Machine Parts
Product Description
1. Precision CNC machining parts strictly follow customers’ drawing, packing, and quality requirements.
2. Tolerance: between+/-0.01mm;
3. The high-tech CMM inspector to ensure the quality;
4. Full-Experienced engineers and well professional trained workers;
5. Fast delivery time;
6. Professional advice for our customers;
Detailed Photos
Product Parameters
Our advantage of cnc machining:
| Business Type | Beyond the Manufacturer and strong organized ability in the industrial |
| Benefits | 1. Deeper industrial experience at CNC machining parts service for more than 10-years,our customer’s requirement is our 1st priority. 2. 2D or 3D files is available; 3. We trust the quality priority and we insist the good quality should be based on the customers’ satisfied; 4. Without any MOQ requirement; 5.Faster delivery time; 6. Customized size and specification /OEM available 7. Near ZheJiang Port |
The material
| Materials Accept |
Stainless Steel | SS201, SS303, SS304, SS316 etc. |
| Steel | Q235, 20#, 45#, | |
| Brass | C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200(CuZn37) , C28000(CuZn40) | |
| Iron | 1213, 12L14,1215 etc. | |
| Bronze | C51000, C52100, C54400, etc. | |
| Aluminum | Al6061, Al6063,AL7075,AL5052 etc | |
| Plastic | ABS,POM,PC(Poly-Carbonate),PC+GF,PA(nylon),PA+GF, PMMA(acrylic)PEEK,PEI etc) |
Packaging & Shipping
- We prefer DHL or TNT express or other air freight between 1kg-100kg.
- we prefer sea freight more than 100kg or more than 1CBM
- As per customized specifications.
Company Profile
About us
HangZhou CHINAMFG Technology Co.,Ltd is located in HangZhou City, ZheJiang Province, Which closed the ZheJiang .The Emitech Technology is mainly engaged in the CNC Machinery Industrial Service for 15 years. Our Parts are sold to Europe, America, Japan, South Korea and China in various kinds of industrial.At present, Our company has CNC Turning machines and CNC centers and equip with professional quality and testing instruments.We have full OEM Experience from worldwide, providing them with One-stop solutions for a broad range of applications.We look CHINAMFG to cooperating with you!
Our Advantages
1. Precision CNC machining parts strictly follow customer’s drawing,packing and quality requirement.
2. Tolerance: between+/-0.01mm;
3. The high-tech CMM inspector to ensure the quality;
4. Full-Experienced engineers and well professional trained workers;
5. Fast delivery time;
6. Professional advice for our customers;
After Sales Service
High Demand Custom Aluminum Precise Milling Spare Lathe Machining Cnc Machine Parts
We usually provide 12 Months repair service. If our duty, we will respond to send the new parts.
Our Service
| Our Processing | CNC center, CNC milling, CNC turning, drilling, grinding, bending, stamping, tapping, |
| Surface finish | Polishing, sandblasting, Zinc-plated, nickel-plated, chrome-plated, silver-plated, gold-plated, imitation gold-plated, |
| Tolerance | 0.05mm~0.1mm |
| QC System | 100% inspection before shipment |
| Drawing format | CAD / PDF/ DWG/ IGS/ STEP |
| Packaging | Plastic bag/Standard package / Carton or Pallet / As per customized specifications |
| Payment Terms | 30 -50%T/T in advance, 70-50% balance before delivery; Pay Pal or Western Union is acceptable. |
| Trade terms | EXW, FOB, CIF, As per the customer’s request |
| Shipment Terms |
1)We prefer DHL or TNT express or other air freight between 1kg-100kg. 2) we prefer sea freight more than 100kg or more than 1CBM |
| Note | The CNC machining parts are usually custom-made based on the customer’s drawings and samples. So we need the Down Payment |
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
Factors to Consider when Choosing between a Fluid Coupling and a VFD (Variable Frequency Drive)
When selecting between a fluid coupling and a VFD for a power transmission application, several factors should be taken into account:
- Speed Control Requirements: Consider whether variable speed control is essential for your application. VFDs are excellent for applications that require precise and flexible speed control, while fluid couplings typically offer limited speed control capabilities.
- Energy Efficiency: Evaluate the energy efficiency requirements of your system. VFDs can offer higher energy efficiency by allowing the motor to run at optimal speeds, whereas fluid couplings introduce some energy losses due to slip.
- Starting Torque: Examine the starting torque requirements of the driven load. Fluid couplings can provide high starting torque and smooth acceleration, which may be advantageous for applications with high inertia loads.
- Overload Protection: Consider the need for overload protection. Fluid couplings inherently provide some protection against shock loads by allowing slip, while VFDs may require additional protective mechanisms.
- Maintenance and Service: Evaluate the maintenance and service requirements of both systems. Fluid couplings are generally simpler and require less maintenance compared to VFDs, which involve electronic components.
- Cost: Compare the initial and long-term costs of both options. VFDs often have higher upfront costs but can provide significant energy savings in the long run, while fluid couplings may have lower initial costs but could lead to higher energy consumption.
Ultimately, the choice between a fluid coupling and a VFD depends on the specific needs of your application. Each option has its advantages and limitations, and a thorough analysis of the operating conditions and performance requirements will help determine the most suitable solution for your system.
Contribution of Fluid Coupling to the Overall Efficiency of a Mechanical System
A fluid coupling plays a crucial role in improving the overall efficiency of a mechanical system, especially in applications where smooth power transmission, soft-starting, and torque control are essential. Here’s how a fluid coupling contributes to system efficiency:
1. Smooth Power Transmission:
Fluid couplings provide a smooth and gradual transfer of power from the driving to the driven machinery. The absence of direct mechanical contact between the input and output shafts reduces shock loads and vibrations, leading to less wear and tear on the connected equipment. This smooth power transmission results in increased system efficiency and reduced downtime.
2. Soft-Start Capability:
Fluid couplings offer soft-starting functionality, which is particularly beneficial for high-inertia or heavy-load applications. During startup, the fluid coupling allows the input shaft to gradually accelerate the output shaft, preventing sudden jerks or torque spikes. Soft-starting not only protects the mechanical components but also reduces energy consumption during the starting phase, contributing to overall efficiency.
3. Torque Control:
Fluid couplings enable precise control over the torque transmitted between the driving and driven machinery. By adjusting the fill level or using variable speed couplings, the torque output can be fine-tuned to match the requirements of the application. This feature ensures optimal performance and energy efficiency, especially in systems where torque demand varies during operation.
4. Overload Protection:
In case of sudden overloads or jamming of the driven machinery, the fluid coupling acts as a torque limiter. It will slip and absorb excess torque, protecting the mechanical system from damage. This overload protection not only safeguards the equipment but also contributes to the longevity and efficiency of the entire system.
5. Heat Dissipation:
Fluid couplings can absorb and dissipate heat generated during continuous operations. This heat dissipation capability prevents the system from overheating, ensuring consistent performance and avoiding thermal damage to the machinery. By maintaining proper operating temperatures, the fluid coupling aids in improving overall efficiency.
6. Energy Savings:
With its ability to reduce shock loads and provide smooth acceleration, a fluid coupling can help save energy during starting and stopping cycles. The elimination of mechanical shocks and vibrations reduces energy losses, resulting in higher overall energy efficiency.
In summary, a fluid coupling enhances the overall efficiency of a mechanical system by providing smooth power transmission, soft-start capability, precise torque control, overload protection, heat dissipation, and energy savings. Its contributions to reduced wear and tear, energy-efficient operations, and enhanced equipment lifespan make it a valuable component in various industrial applications.
Disadvantages and Limitations of Fluid Couplings
While fluid couplings offer numerous advantages, they also have some disadvantages and limitations that should be considered for specific applications:
- Power Loss: Fluid couplings introduce a power loss due to the slip that occurs during power transmission. This power loss can reduce the overall efficiency of the system, especially in applications with high-speed variations.
- Torque Multiplication: Unlike torque converters, fluid couplings have limited torque multiplication capabilities. They do not provide as much torque increase at low speeds, which may be necessary for certain heavy-load applications.
- Temperature Sensitivity: Fluid couplings are sensitive to temperature changes. In extremely hot or cold conditions, the viscosity of the fluid may vary, affecting the coupling’s performance.
- Fluid Contamination: Contaminants in the fluid can adversely affect the performance and lifespan of the fluid coupling. Regular maintenance and monitoring of the fluid quality are essential to prevent potential issues.
- Speed Limitations: Fluid couplings may have speed limitations in certain applications. High-speed operations can lead to centrifugal forces that may affect the coupling’s behavior.
- Complexity in Control: In some cases, controlling the output speed of the fluid coupling can be more challenging compared to other types of couplings. This complexity may require additional control mechanisms.
- Cost: Fluid couplings can be more expensive than some mechanical couplings, such as belt and chain drives. The initial cost and ongoing maintenance expenses should be considered in the selection process.
Despite these limitations, fluid couplings remain a popular choice in many industrial applications, thanks to their smooth power transmission, overload protection, and torsional vibration damping capabilities. The decision to use a fluid coupling should be based on a thorough understanding of the specific requirements and operating conditions of the machinery or equipment.
editor by CX 2024-03-28
China high quality Flange Cast Iron Coupling Steel Universal Joint Cardan Pump Rubber Motor Disc Curved Tooth Flex Rigid Drive Shaft Nm Yox Fluid Jaw Flexible Chain Gear Couplings
Product Description
Excellent powder metallurgy parts metallic sintered parts
We could offer various powder metallurgy parts including iron based and copper based with top quality and cheapest price, please only send the drawing or sample to us, we will according to customer’s requirement to make it. if you are interested in our product, please do not hesitate to contact us, we would like to offer the top quality and best service for you. thank you!
How do We Work with Our Clients
1. For a design expert or a big company with your own engineering team: we prefer to receive a fully RFQ pack from you including drawing, 3D model, quantity, pictures;
2. For a start-up company owner or green hand for engineering: just send an idea that you want to try, you don’t even need to know what casting is;
3. Our sales will reply you within 24 hours to confirm further details and give the estimated quote time;
4. Our engineering team will evaluate your inquiry and provide our offer within next 1~3 working days.
5. We can arrange a technical communication meeting with you and our engineers together anytime if required.
| Place of origin: | Jangsu,China |
| Type: | Powder metallurgy sintering |
| Spare parts type: | Powder metallurgy parts |
| Machinery Test report: | Provided |
| Material: | Iron,stainless,steel,copper |
| Key selling points: | Quality assurance |
| Mould type: | Tungsten steel |
| Material standard: | MPIF 35,DIN 3571,JIS Z 2550 |
| Application: | Small home appliances,Lockset,Electric tool, automobile, |
| Brand Name: | OEM SERVICE |
| Plating: | Customized |
| After-sales Service: | Online support |
| Processing: | Powder Metallurgr,CNC Machining |
| Powder Metallurgr: | High frequency quenching, oil immersion |
| Quality Control: | 100% inspection |
The Advantage of Powder Metallurgy Process
1. Cost effective
The final products can be compacted with powder metallurgy method ,and no need or can shorten the processing of machine .It can save material greatly and reduce the production cost .
2. Complex shapes
Powder metallurgy allows to obtain complex shapes directly from the compacting tooling ,without any machining operation ,like teeth ,splines ,profiles ,frontal geometries etc.
3. High precision
Achievable tolerances in the perpendicular direction of compacting are typically IT 8-9 as sintered,improvable up to IT 5-7 after sizing .Additional machining operations can improve the precision .
4. Self-lubrication
The interconnected porosity of the material can be filled with oils ,obtaining then a self-lubricating bearing :the oil provides constant lubrication between bearing and shaft ,and the system does not need any additional external lubricant .
5. Green technology
The manufacturing process of sintered components is certified as ecological ,because the material waste is very low ,the product is recyclable ,and the energy efficiency is good because the material is not molten.
FAQ
Q1: What is the type of payment?
A: Usually you should prepay 50% of the total amount. The balance should be pay off before shipment.
Q2: How to guarantee the high quality?
A: 100% inspection. We have Carl Zeiss high-precision testing equipment and testing department to make sure every product of size,appearance and pressure test are good.
Q3: How long will you give me the reply?
A: we will contact you in 12 hours as soon as we can.
Q4. How about your delivery time?
A: Generally, it will take 25 to 35 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order. and if the item was non standard, we have to consider extra 10-15days for tooling/mould made.
Q5. Can you produce according to the samples or drawings?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.
Q6: How about tooling Charge?
A: Tooling charge only charge once when first order, all future orders would not charge again even tooling repair or under maintance.
Q7: What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.
Q8: How do you make our business long-term and good relationship?
A: 1. We keep good quality and competitive price to ensure our customers benefit ;
2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
Contribution of Fluid Coupling to the Longevity of Connected Equipment
A fluid coupling plays a crucial role in enhancing the longevity and protecting the connected equipment by providing the following benefits:
- Shock Load Damping: When the equipment starts or stops, there can be sudden changes in torque, resulting in shock loads. The fluid coupling absorbs and dampens these shock loads, reducing stress and wear on the connected equipment.
- Torsional Vibration Damping: Torsional vibrations can occur during the operation of the connected equipment, which can be damaging over time. The fluid coupling acts as a torsional damper, reducing these vibrations and preventing potential fatigue failure in the equipment.
- Overload Protection: In case of sudden overloads or jamming of the connected equipment, the fluid coupling can slip and decouple the load, protecting both the equipment and the driving motor from excessive stress and damage.
- Smooth Startup: During startup, the fluid coupling allows a gradual increase in torque, enabling a smooth and controlled acceleration of the connected equipment. This eliminates sudden jerks and reduces mechanical stress during the startup phase.
- Load Distribution: The fluid coupling distributes the load evenly across the connected equipment, minimizing wear and tear on specific components and extending the overall lifespan of the machinery.
- Reduced Maintenance: By reducing shock loads and vibrations, the fluid coupling helps decrease the frequency of maintenance and repairs required for the connected equipment, resulting in cost savings and improved uptime.
- Energy Efficiency: The fluid coupling allows for efficient power transmission by reducing losses during startup and load changes. This, in turn, helps in lowering the overall energy consumption of the system and contributes to equipment longevity.
- Contamination Prevention: The fluid coupling encapsulates the driving and driven components, providing a barrier that helps prevent contaminants such as dust, dirt, and moisture from entering the equipment’s internal components. This protection can extend the life of bearings and other sensitive parts.
Overall, a fluid coupling acts as a protective intermediary between the driving motor and the connected equipment, enhancing the system’s reliability, efficiency, and longevity by mitigating the effects of shocks, vibrations, and overloads.
Fluid Coupling: Dealing with Oil Leakage and Sealing Issues
Fluid couplings are designed to be sealed units to prevent the leakage of the internal fluid (usually oil or a similar hydraulic fluid). Proper sealing is crucial for the efficient and reliable operation of the fluid coupling, as any oil leakage can lead to reduced performance, contamination, and potential damage to the surrounding components.
Here are some key factors related to oil leakage and sealing issues in fluid couplings:
- Seal Design: The sealing system in a fluid coupling typically involves shaft seals and gaskets. High-quality seals are essential to prevent oil from escaping and contaminants from entering the coupling. The design and material selection of these seals play a significant role in maintaining effective sealing.
- Installation: Proper installation of the fluid coupling is critical to ensure that the seals are correctly positioned and securely fitted. Any misalignment or damage during installation can lead to oil leakage issues.
- Maintenance: Regular maintenance is essential to detect and address any potential sealing problems early on. Inspections should be conducted periodically to check for signs of oil leakage, wear on the seals, and any damage to the coupling housing.
- Fluid Selection: The choice of fluid used inside the coupling can also influence its sealing performance. Using the recommended fluid type and quality specified by the manufacturer is essential for maintaining proper sealing.
- Operating Conditions: The operating environment can impact the sealing effectiveness. Extreme temperature variations or harsh working conditions may affect the integrity of the seals over time.
If oil leakage or sealing issues are observed in a fluid coupling, immediate action should be taken to address the problem. This may involve replacing worn-out seals, resealing the coupling, or investigating potential causes such as misalignment or excessive heat generation.
Additionally, regular inspection and maintenance of the fluid coupling can help prevent sealing problems before they escalate. Early detection and appropriate maintenance can extend the lifespan of the fluid coupling and ensure reliable power transmission in various industrial applications.
Consulting with the manufacturer or a qualified engineer for guidance on proper maintenance and troubleshooting of fluid coupling sealing issues is recommended.
Fluid Couplings and Energy Efficiency in Power Transmission
Fluid couplings play a significant role in improving energy efficiency in power transmission systems. They achieve this by enabling smooth and efficient torque transmission while reducing energy losses during various operating conditions.
One of the key factors contributing to the energy efficiency of fluid couplings is their hydrodynamic principle of operation. When power is transmitted through a fluid coupling, it operates on the principle of hydrodynamic power transmission. The primary component, known as the impeller, rotates and imparts motion to the fluid inside the coupling. This motion creates a hydrodynamic force that transmits the torque to the output side.
During the initial startup or when there is a significant speed difference between the input and output shafts, the fluid coupling allows the input shaft to accelerate gradually. This feature, known as the soft start, reduces the mechanical stress on the connected components and the power source. By avoiding sudden acceleration, fluid couplings minimize the energy spikes that occur during direct starts in systems without couplings.
Moreover, fluid couplings act as a torque limiter when the load exceeds a certain threshold. This characteristic, known as the slip, allows the fluid coupling to disengage slightly when the torque reaches a predetermined level. As a result, it protects the system from overloads and reduces energy wastage during high-stress conditions.
Additionally, fluid couplings help mitigate the impact of shock loads and torsional vibrations, which can reduce wear and tear on mechanical components. By minimizing vibrations and shock loads, fluid couplings contribute to longer equipment life and, consequently, lower maintenance and replacement costs.
However, it’s important to note that like any mechanical component, fluid couplings have some energy losses due to viscous drag and heat dissipation. While modern fluid couplings are designed with improved efficiency, these losses need to be considered when assessing the overall energy efficiency of a power transmission system.
In summary, fluid couplings enhance energy efficiency in power transmission by providing soft starts, torque limiting, and damping of vibrations, thus reducing energy wastage and extending the life of the connected equipment.
editor by CX 2024-03-11
China wholesaler Stainless Steel Coupling Gear Rigid Roller Chain Fluid Tyre Grid Jaw Spider HRC Nm Motor Flange Gear Pump Rubber Spline Shaft Flexible Universal Joint Coupling
Product Description
High Demand Custom Aluminum Precise Milling Spare Lathe Machining Cnc Machine Parts
Product Description
1. Precision CNC machining parts strictly follow customers’ drawing, packing, and quality requirements.
2. Tolerance: between+/-0.01mm;
3. The high-tech CMM inspector to ensure the quality;
4. Full-Experienced engineers and well professional trained workers;
5. Fast delivery time;
6. Professional advice for our customers;
Detailed Photos
Product Parameters
Our advantage of cnc machining:
| Business Type | Beyond the Manufacturer and strong organized ability in the industrial |
| Benefits | 1. Deeper industrial experience at CNC machining parts service for more than 10-years,our customer’s requirement is our 1st priority. 2. 2D or 3D files is available; 3. We trust the quality priority and we insist the good quality should be based on the customers’ satisfied; 4. Without any MOQ requirement; 5.Faster delivery time; 6. Customized size and specification /OEM available 7. Near ZheJiang Port |
The material
| Materials Accept |
Stainless Steel | SS201, SS303, SS304, SS316 etc. |
| Steel | Q235, 20#, 45#, | |
| Brass | C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200(CuZn37) , C28000(CuZn40) | |
| Iron | 1213, 12L14,1215 etc. | |
| Bronze | C51000, C52100, C54400, etc. | |
| Aluminum | Al6061, Al6063,AL7075,AL5052 etc | |
| Plastic | ABS,POM,PC(Poly-Carbonate),PC+GF,PA(nylon),PA+GF, PMMA(acrylic)PEEK,PEI etc) |
Packaging & Shipping
- We prefer DHL or TNT express or other air freight between 1kg-100kg.
- we prefer sea freight more than 100kg or more than 1CBM
- As per customized specifications.
Company Profile
About us
HangZhou CHINAMFG Technology Co.,Ltd is located in HangZhou City, ZheJiang Province, Which closed the ZheJiang .The Emitech Technology is mainly engaged in the CNC Machinery Industrial Service for 15 years. Our Parts are sold to Europe, America, Japan, South Korea and China in various kinds of industrial.At present, Our company has CNC Turning machines and CNC centers and equip with professional quality and testing instruments.We have full OEM Experience from worldwide, providing them with One-stop solutions for a broad range of applications.We look CHINAMFG to cooperating with you!
Our Advantages
1. Precision CNC machining parts strictly follow customer’s drawing,packing and quality requirement.
2. Tolerance: between+/-0.01mm;
3. The high-tech CMM inspector to ensure the quality;
4. Full-Experienced engineers and well professional trained workers;
5. Fast delivery time;
6. Professional advice for our customers;
After Sales Service
High Demand Custom Aluminum Precise Milling Spare Lathe Machining Cnc Machine Parts
We usually provide 12 Months repair service. If our duty, we will respond to send the new parts.
Our Service
| Our Processing | CNC center, CNC milling, CNC turning, drilling, grinding, bending, stamping, tapping, |
| Surface finish | Polishing, sandblasting, Zinc-plated, nickel-plated, chrome-plated, silver-plated, gold-plated, imitation gold-plated, |
| Tolerance | 0.05mm~0.1mm |
| QC System | 100% inspection before shipment |
| Drawing format | CAD / PDF/ DWG/ IGS/ STEP |
| Packaging | Plastic bag/Standard package / Carton or Pallet / As per customized specifications |
| Payment Terms | 30 -50%T/T in advance, 70-50% balance before delivery; Pay Pal or Western Union is acceptable. |
| Trade terms | EXW, FOB, CIF, As per the customer’s request |
| Shipment Terms |
1)We prefer DHL or TNT express or other air freight between 1kg-100kg. 2) we prefer sea freight more than 100kg or more than 1CBM |
| Note | The CNC machining parts are usually custom-made based on the customer’s drawings and samples. So we need the Down Payment |
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Key Parameters in Designing a Fluid Coupling System
Designing a fluid coupling system requires careful consideration of various parameters to ensure optimal performance and efficiency. Here are the key parameters to take into account:
- Power Rating: Determine the power requirements of the connected equipment to select a fluid coupling with an appropriate power rating. Undersized couplings may lead to overheating and premature wear, while oversized couplings can result in energy losses.
- Input and Output Speeds: Consider the rotational speeds of the input and output shafts to ensure the fluid coupling can accommodate the desired speed range without slipping or exceeding its limitations.
- Torque Capacity: Calculate the maximum torque expected in the system and choose a fluid coupling with a torque capacity that exceeds this value to handle occasional overloads and prevent damage.
- Fluid Viscosity: The viscosity of the fluid inside the coupling affects its torque transmission capabilities. Select a fluid viscosity suitable for the application and operating conditions.
- Start-Up and Load Conditions: Analyze the start-up torque and load variations during operation. The fluid coupling should be capable of handling these conditions without excessive slip or stress on the drivetrain.
- Environmental Factors: Consider the ambient temperature, humidity, and potential exposure to contaminants. Ensure the fluid coupling’s materials and sealing mechanisms can withstand the environmental conditions.
- Size and Weight: Optimize the size and weight of the fluid coupling to minimize space requirements and facilitate installation and maintenance.
- Torsional Resonance: Evaluate torsional resonances in the system and select a fluid coupling with appropriate damping characteristics to mitigate vibrations.
- Overload Protection: Determine if overload protection features, such as slip or torque limiting, are necessary to safeguard the connected equipment from damage.
- Compatibility: Ensure the fluid coupling is compatible with the specific application, including the type of driven equipment, its mechanical characteristics, and any other interrelated components in the drivetrain.
- Operational Costs: Consider the long-term operational costs, maintenance requirements, and efficiency of the fluid coupling to optimize the overall lifecycle cost of the system.
- Safety Standards: Adhere to relevant safety standards and regulations in the design and installation of the fluid coupling system to ensure safe and reliable operation.
By carefully evaluating these parameters and selecting a fluid coupling that aligns with the specific requirements of the application, engineers can design a reliable and efficient fluid coupling system for various industrial and power transmission applications.
Fluid Couplings in Hydraulic Drive Systems
Yes, fluid couplings can be used in hydraulic drive systems to transmit power and control the speed of driven components. In hydraulic drive systems, fluid couplings act as a torque converter, providing a smooth and gradual transfer of power between the input and output shafts.
The basic principle of a fluid coupling remains the same whether it is used in a mechanical drive system or a hydraulic drive system. The fluid coupling consists of an input impeller connected to the prime mover (such as an electric motor or an engine) and an output runner connected to the driven component.
When the prime mover is activated, it drives the input impeller, creating a flow of hydraulic fluid within the coupling. This fluid flow creates a hydrodynamic torque that is transferred to the output runner, driving the connected component. The fluid coupling allows for a controlled slip between the input and output, allowing the driven component to start smoothly and gradually reach its desired speed.
In hydraulic drive systems, fluid couplings offer several advantages:
- Smooth Torque Transmission: Fluid couplings provide smooth torque transmission, reducing shocks and vibrations in the system.
- Overload Protection: Fluid couplings can protect the drive system from overloads by allowing some slip in the event of sudden changes in load or jamming of the driven component.
- Speed Control: By controlling the flow of hydraulic fluid, the speed of the driven component can be precisely regulated.
- Energy Efficiency: Fluid couplings can help improve energy efficiency by reducing mechanical losses and optimizing power transmission.
Hydraulic drive systems with fluid couplings are commonly used in various industrial applications, including conveyor systems, mining equipment, marine propulsion, and more. They offer reliable and efficient power transmission while protecting the machinery from excessive loads and shocks.
It’s essential to consider the specific requirements of the hydraulic drive system and the characteristics of the fluid coupling to ensure optimal performance and efficiency in the application.
Key Components of a Fluid Coupling and Their Functions
A fluid coupling consists of several essential components that work together to transfer torque and facilitate smooth power transmission. The key components and their functions are as follows:
- Impeller: The impeller is the primary input element of the fluid coupling. It is directly connected to the driving shaft and rotates with it. The impeller’s function is to churn and circulate the fluid inside the coupling, creating a flow that generates a hydrodynamic torque.
- Runner/Turbine: The runner, also known as the turbine, is the output element of the fluid coupling. It is connected to the driven shaft and rotates with it. As the fluid from the impeller flows onto the runner, it causes the runner to rotate and transmit torque to the driven load.
- Fluid: The fluid, typically hydraulic oil, is the medium that transmits torque from the impeller to the runner. It fills the space between the impeller and the runner and allows the torque transfer to take place through hydrodynamic action.
- Filler Plug: The filler plug is used to add or drain the fluid from the fluid coupling. It allows for the adjustment of fluid levels, which can influence the coupling’s performance characteristics.
- Seal Ring: The seal ring prevents the fluid from leaking out of the fluid coupling and ensures that the coupling operates with maximum efficiency and minimal losses.
- Bearing: The bearing provides support for the input and output shafts, allowing them to rotate smoothly. Bearings are critical for maintaining alignment and reducing friction within the fluid coupling.
These key components work together to create a hydrodynamic torque transfer, enabling the fluid coupling to smoothly transmit power and torque from the driving shaft to the driven shaft without any physical contact between the two shafts.
editor by CX 2024-03-08
China OEM Stainless Steel Coupling Gear Rigid Roller Chain Fluid Tyre Grid Jaw Spider HRC Nm Motor Flange Gear Pump Rubber Spline Shaft Flexible Universal Joint Coupling
Product Description
Stainless Steel Coupling Gear Rigid Roller Chain Fluid Tyre Grid Jaw Spider HRC Nm Motor Flange Gear Pump Rubber Spline Shaft Flexible Universal Joint Coupling
Product Description
Main products
Coupling refers to a device that connects 2 shafts or shafts and rotating parts, rotates together during the transmission of motion and power, and does not disengage under normal conditions. Sometimes it is also used as a safety device to prevent the connected parts from bearing excessive load, which plays the role of overload protection.
Couplings can be divided into rigid couplings and flexible couplings.
Rigid couplings do not have buffering property and the ability to compensate the relative displacement of 2 axes. It is required that the 2 axes be strictly aligned. However, such couplings are simple in structure, low in manufacturing cost, convenient in assembly and disassembly, and maintenance, which can ensure that the 2 axes are relatively neutral, have large transmission torque, and are widely used. Commonly used are flange coupling, sleeve coupling and jacket coupling.
Flexible coupling can also be divided into flexible coupling without elastic element and flexible coupling with elastic element. The former type only has the ability to compensate the relative displacement of 2 axes, but cannot cushion and reduce vibration. Common types include slider coupling, gear coupling, universal coupling and chain coupling; The latter type contains elastic elements. In addition to the ability to compensate the relative displacement of 2 axes, it also has the functions of buffering and vibration reduction. However, due to the strength of elastic elements, the transmitted torque is generally inferior to that of flexible couplings without elastic elements. Common types include elastic sleeve pin couplings, elastic pin couplings, quincunx couplings, tire type couplings, serpentine spring couplings, spring couplings, etc
Coupling performance
1) Mobility. The movability of the coupling refers to the ability to compensate the relative displacement of 2 rotating components. Factors such as manufacturing and installation errors between connected components, temperature changes during operation and deformation under load all put CHINAMFG requirements for mobility. The movable performance compensates or alleviates the additional load between shafts, bearings, couplings and other components caused by the relative displacement between rotating components.
(2) Buffering. For the occasions where the load is often started or the working load changes, the coupling shall be equipped with elastic elements that play the role of cushioning and vibration reduction to protect the prime mover and the working machine from little or no damage.
(3) Safe, reliable, with sufficient strength and service life.
(4) Simple structure, easy to assemble, disassemble and maintain.
How to select the appropriate coupling type
The following items should be considered when selecting the coupling type.
1. The size and nature of the required transmission torque, the requirements for buffering and damping functions, and whether resonance may occur.
2. The relative displacement of the axes of the 2 shafts is caused by manufacturing and assembly errors, shaft load and thermal expansion deformation, and relative movement between components.
3. Permissible overall dimensions and installation methods, and necessary operating space for assembly, adjustment and maintenance. For large couplings, they should be able to be disassembled without axial movement of the shaft.
In addition, the working environment, service life, lubrication, sealing, economy and other conditions should also be considered, and a suitable coupling type should be selected by referring to the characteristics of various couplings.
If you cannot determine the type, you can contact our professional engineer
Related products
Company Profile
Our Equipments
Main production equipment:
Large lathe, surface grinder, milling machine, gear shaper, spline milling machine, horizontal broaching machine, gear hobbing machine, shaper, slotting machine, bench drilling machine, radial drilling machine, boring machine, band sawing machine, horizontal lathe, end milling machine, crankshaft grinder, CNC milling machine, casting equipment, etc.
Inspection equipment:
Dynamic balance tester, high-speed intelligent carbon and sulfur analyzer, Blochon optical hardness tester, Leeb hardness tester, magnetic yoke flaw detector, special detection, modular fixture (self-made), etc.
Machining equipments
Heat equipment
Our Factory
Application – Photos from our partner customers
Company Profile
Our leading products are mechanical transmission basic parts – couplings, mainly including universal couplings, drum gear couplings, elastic couplings and other 3 categories of more than 30 series of varieties. It is widely used in metallurgical steel rolling, wind power, hydropower, mining, engineering machinery, petrochemical, lifting, paper making, rubber, rail transit, shipbuilding and marine engineering and other industries.
Our factory takes the basic parts of national standards as the benchmark, has more than 40 years of coupling production experience, takes “scientific management, pioneering and innovation, ensuring quality and customer satisfaction” as the quality policy, and aims to continuously provide users with satisfactory products and services. The production is guided by reasonable process, and the ISO9001:2015 quality management system standard is strictly implemented. We adhere to the principle of continuous improvement and innovation of coupling products. In recent years, it has successfully developed 10 national patent products such as SWF cross shaft universal coupling, among which the double cross shaft universal joint has won the national invention patent, SWF cross shaft universal coupling has won the new product award of China’s general mechanical parts coupling industry and the ZHangZhoug Province new product science and technology project.
Our factory has strong technical force, excellent process equipment, complete professional production equipment, perfect detection means, excellent after-sales service, various products and complete specifications. At the same time, we can provide the design and manufacturing of special non-standard products according to the needs of users. Our products sell well at home and abroad, and are trusted by the majority of users. We sincerely welcome friends from all walks of life at home and abroad to visit and negotiate for common development.p
How does a Fluid Coupling Handle Shock Loads and Torsional Vibrations?
Fluid couplings are designed to handle shock loads and torsional vibrations in power transmission systems due to their unique operating principle:
- Shock Load Handling: When a sudden or high-impact load is applied to the output shaft, the fluid coupling allows a certain degree of slippage between the impeller and the runner. This slippage acts as a buffer, absorbing the shock and protecting the connected machinery from abrupt torque changes. As a result, fluid couplings are effective at preventing damage to the drivetrain and other components during abrupt starts and stops.
- Torsional Vibration Damping: Torsional vibrations can occur in rotating systems, leading to harmful vibrations that can affect the overall stability and performance of the machinery. Fluid couplings help dampen these torsional vibrations by providing a smooth and controlled power transmission. The hydraulic fluid inside the coupling acts as a viscous damper, absorbing and dissipating the energy of torsional vibrations, thus reducing the impact on the connected equipment.
By effectively managing shock loads and torsional vibrations, fluid couplings contribute to improved reliability and reduced wear and tear on the machinery, leading to longer equipment life and enhanced overall performance.
Temperature Limitations of Fluid Couplings
Fluid couplings, like any mechanical component, have temperature limitations that must be considered to ensure their proper and safe operation. The temperature limitations of fluid couplings are influenced by the type of fluid used inside the coupling, the ambient operating conditions, and the specific design and construction of the coupling.
The primary concern regarding temperature is the heat generated during the operation of the fluid coupling. The heat is a result of friction and fluid shear within the coupling as it transmits power between the input and output shafts. Excessive heat generation can lead to the degradation of the fluid, affecting the performance and longevity of the coupling.
As a general guideline, most fluid couplings are designed to operate within a temperature range of -30°C to 80°C (-22°F to 176°F). However, the actual temperature limitations may vary depending on the manufacturer and the application requirements. For specific industrial applications where high-temperature environments are common, fluid couplings with higher temperature tolerances may be available.
It is crucial to consider the operating environment and the power demands of the machinery when selecting a fluid coupling. In applications with extreme temperatures, additional cooling mechanisms such as external cooling fins or cooling water circulation may be employed to maintain the fluid coupling within its safe operating temperature range.
Exceeding the recommended temperature limits can lead to premature wear, reduced efficiency, and even mechanical failure of the fluid coupling. Regular monitoring of the operating temperature and following the manufacturer’s guidelines for maintenance and fluid replacement can help ensure the longevity and reliability of the fluid coupling.
Always consult with the manufacturer or a qualified engineer to determine the specific temperature limitations and suitability of the fluid coupling for your particular application.
What is a Fluid Coupling and How Does It Work?
A fluid coupling is a type of hydraulic device used to transmit torque and power between two shafts without direct mechanical contact. It consists of three main components: the impeller, the turbine, and the housing. Fluid couplings are commonly used in various industrial applications, such as heavy machinery, conveyors, and automotive drivetrains.
Working Principle: The fluid coupling operates based on the principle of hydrodynamic power transmission. It uses a hydraulic fluid (usually oil) to transfer torque from the driving shaft (input) to the driven shaft (output).
1. Impeller: The impeller is mounted on the input shaft and is connected to the prime mover (e.g., an electric motor or an engine). When the prime mover rotates the impeller, it creates a swirling motion in the hydraulic fluid.
2. Turbine: The turbine is connected to the output shaft and is responsible for transmitting the torque to the driven system. The swirling motion of the hydraulic fluid generated by the impeller causes the turbine to rotate.
3. Fluid Filling: The area between the impeller and the turbine is filled with hydraulic fluid. As the impeller rotates, it creates a vortex in the fluid, which in turn causes the turbine to rotate.
4. Fluid Coupling Working: As the impeller and turbine are enclosed in the housing, the hydraulic fluid transfers rotational energy from the impeller to the turbine without any direct physical connection. The fluid coupling allows some slip between the impeller and the turbine, which enables smooth torque transmission, dampens shock loads, and provides overload protection.
5. Slip: Under normal operating conditions, there is a slight speed difference (slip) between the impeller and the turbine. This slip allows the fluid coupling to absorb shock loads and dampen vibrations, protecting the connected machinery from sudden jolts and overloads.
Fluid couplings are advantageous in applications where a gradual start-up and controlled acceleration are required. They provide a smoother and more flexible power transmission compared to direct mechanical couplings like gear couplings or belt drives.
However, it’s important to note that fluid couplings have some energy loss due to the slip, which can result in reduced efficiency compared to direct mechanical couplings like gear couplings or belt drives.
editor by CX 2023-12-08
China manufacturer Stainless Steel Coupling Gear Rigid Roller Chain Fluid Tyre Grid Jaw Spider HRC Nm Motor Flange Gear Pump Rubber Spline Shaft Flexible Universal Joint Coupling
Product Description
Stainless Steel Coupling Gear Rigid Roller Chain Fluid Tyre Grid Jaw Spider HRC Nm Motor Flange Gear Pump Rubber Spline Shaft Flexible Universal Joint Coupling
Product Description
Main products
Coupling refers to a device that connects 2 shafts or shafts and rotating parts, rotates together during the transmission of motion and power, and does not disengage under normal conditions. Sometimes it is also used as a safety device to prevent the connected parts from bearing excessive load, which plays the role of overload protection.
Couplings can be divided into rigid couplings and flexible couplings.
Rigid couplings do not have buffering property and the ability to compensate the relative displacement of 2 axes. It is required that the 2 axes be strictly aligned. However, such couplings are simple in structure, low in manufacturing cost, convenient in assembly and disassembly, and maintenance, which can ensure that the 2 axes are relatively neutral, have large transmission torque, and are widely used. Commonly used are flange coupling, sleeve coupling and jacket coupling.
Flexible coupling can also be divided into flexible coupling without elastic element and flexible coupling with elastic element. The former type only has the ability to compensate the relative displacement of 2 axes, but cannot cushion and reduce vibration. Common types include slider coupling, gear coupling, universal coupling and chain coupling; The latter type contains elastic elements. In addition to the ability to compensate the relative displacement of 2 axes, it also has the functions of buffering and vibration reduction. However, due to the strength of elastic elements, the transmitted torque is generally inferior to that of flexible couplings without elastic elements. Common types include elastic sleeve pin couplings, elastic pin couplings, quincunx couplings, tire type couplings, serpentine spring couplings, spring couplings, etc
Coupling performance
1) Mobility. The movability of the coupling refers to the ability to compensate the relative displacement of 2 rotating components. Factors such as manufacturing and installation errors between connected components, temperature changes during operation and deformation under load all put CHINAMFG requirements for mobility. The movable performance compensates or alleviates the additional load between shafts, bearings, couplings and other components caused by the relative displacement between rotating components.
(2) Buffering. For the occasions where the load is often started or the working load changes, the coupling shall be equipped with elastic elements that play the role of cushioning and vibration reduction to protect the prime mover and the working machine from little or no damage.
(3) Safe, reliable, with sufficient strength and service life.
(4) Simple structure, easy to assemble, disassemble and maintain.
How to select the appropriate coupling type
The following items should be considered when selecting the coupling type.
1. The size and nature of the required transmission torque, the requirements for buffering and damping functions, and whether resonance may occur.
2. The relative displacement of the axes of the 2 shafts is caused by manufacturing and assembly errors, shaft load and thermal expansion deformation, and relative movement between components.
3. Permissible overall dimensions and installation methods, and necessary operating space for assembly, adjustment and maintenance. For large couplings, they should be able to be disassembled without axial movement of the shaft.
In addition, the working environment, service life, lubrication, sealing, economy and other conditions should also be considered, and a suitable coupling type should be selected by referring to the characteristics of various couplings.
If you cannot determine the type, you can contact our professional engineer
Related products
Company Profile
Our Equipments
Main production equipment:
Large lathe, surface grinder, milling machine, gear shaper, spline milling machine, horizontal broaching machine, gear hobbing machine, shaper, slotting machine, bench drilling machine, radial drilling machine, boring machine, band sawing machine, horizontal lathe, end milling machine, crankshaft grinder, CNC milling machine, casting equipment, etc.
Inspection equipment:
Dynamic balance tester, high-speed intelligent carbon and sulfur analyzer, Blochon optical hardness tester, Leeb hardness tester, magnetic yoke flaw detector, special detection, modular fixture (self-made), etc.
Machining equipments
Heat equipment
Our Factory
Application – Photos from our partner customers
Company Profile
Our leading products are mechanical transmission basic parts – couplings, mainly including universal couplings, drum gear couplings, elastic couplings and other 3 categories of more than 30 series of varieties. It is widely used in metallurgical steel rolling, wind power, hydropower, mining, engineering machinery, petrochemical, lifting, paper making, rubber, rail transit, shipbuilding and marine engineering and other industries.
Our factory takes the basic parts of national standards as the benchmark, has more than 40 years of coupling production experience, takes “scientific management, pioneering and innovation, ensuring quality and customer satisfaction” as the quality policy, and aims to continuously provide users with satisfactory products and services. The production is guided by reasonable process, and the ISO9001:2015 quality management system standard is strictly implemented. We adhere to the principle of continuous improvement and innovation of coupling products. In recent years, it has successfully developed 10 national patent products such as SWF cross shaft universal coupling, among which the double cross shaft universal joint has won the national invention patent, SWF cross shaft universal coupling has won the new product award of China’s general mechanical parts coupling industry and the ZHangZhoug Province new product science and technology project.
Our factory has strong technical force, excellent process equipment, complete professional production equipment, perfect detection means, excellent after-sales service, various products and complete specifications. At the same time, we can provide the design and manufacturing of special non-standard products according to the needs of users. Our products sell well at home and abroad, and are trusted by the majority of users. We sincerely welcome friends from all walks of life at home and abroad to visit and negotiate for common development.p
Factors to Consider when Choosing between a Fluid Coupling and a VFD (Variable Frequency Drive)
When selecting between a fluid coupling and a VFD for a power transmission application, several factors should be taken into account:
- Speed Control Requirements: Consider whether variable speed control is essential for your application. VFDs are excellent for applications that require precise and flexible speed control, while fluid couplings typically offer limited speed control capabilities.
- Energy Efficiency: Evaluate the energy efficiency requirements of your system. VFDs can offer higher energy efficiency by allowing the motor to run at optimal speeds, whereas fluid couplings introduce some energy losses due to slip.
- Starting Torque: Examine the starting torque requirements of the driven load. Fluid couplings can provide high starting torque and smooth acceleration, which may be advantageous for applications with high inertia loads.
- Overload Protection: Consider the need for overload protection. Fluid couplings inherently provide some protection against shock loads by allowing slip, while VFDs may require additional protective mechanisms.
- Maintenance and Service: Evaluate the maintenance and service requirements of both systems. Fluid couplings are generally simpler and require less maintenance compared to VFDs, which involve electronic components.
- Cost: Compare the initial and long-term costs of both options. VFDs often have higher upfront costs but can provide significant energy savings in the long run, while fluid couplings may have lower initial costs but could lead to higher energy consumption.
Ultimately, the choice between a fluid coupling and a VFD depends on the specific needs of your application. Each option has its advantages and limitations, and a thorough analysis of the operating conditions and performance requirements will help determine the most suitable solution for your system.
Temperature Limitations of Fluid Couplings
Fluid couplings, like any mechanical component, have temperature limitations that must be considered to ensure their proper and safe operation. The temperature limitations of fluid couplings are influenced by the type of fluid used inside the coupling, the ambient operating conditions, and the specific design and construction of the coupling.
The primary concern regarding temperature is the heat generated during the operation of the fluid coupling. The heat is a result of friction and fluid shear within the coupling as it transmits power between the input and output shafts. Excessive heat generation can lead to the degradation of the fluid, affecting the performance and longevity of the coupling.
As a general guideline, most fluid couplings are designed to operate within a temperature range of -30°C to 80°C (-22°F to 176°F). However, the actual temperature limitations may vary depending on the manufacturer and the application requirements. For specific industrial applications where high-temperature environments are common, fluid couplings with higher temperature tolerances may be available.
It is crucial to consider the operating environment and the power demands of the machinery when selecting a fluid coupling. In applications with extreme temperatures, additional cooling mechanisms such as external cooling fins or cooling water circulation may be employed to maintain the fluid coupling within its safe operating temperature range.
Exceeding the recommended temperature limits can lead to premature wear, reduced efficiency, and even mechanical failure of the fluid coupling. Regular monitoring of the operating temperature and following the manufacturer’s guidelines for maintenance and fluid replacement can help ensure the longevity and reliability of the fluid coupling.
Always consult with the manufacturer or a qualified engineer to determine the specific temperature limitations and suitability of the fluid coupling for your particular application.
Comparison: Fluid Coupling vs. Torque Converter
Fluid couplings and torque converters are both hydrodynamic devices used in automotive and industrial applications to transmit power between an engine and a driven load. While they share some similarities, they also have distinct differences:
- Function: The primary function of both fluid couplings and torque converters is to transmit rotational power from the engine to the transmission or driven load. They allow for smooth power transmission and provide a degree of isolation between the engine and the load.
- Construction: Both devices consist of an impeller, a turbine, and a housing filled with hydraulic fluid (usually oil). The impeller is connected to the engine’s crankshaft, the turbine to the transmission/input shaft, and the housing is shared between the two.
- Torque Transmission: In a fluid coupling, the power is transmitted purely through hydrodynamic principles. The impeller accelerates the fluid, which then drives the turbine. However, there is no torque multiplication, and the output speed is always slightly less than the input speed. On the other hand, a torque converter can provide torque multiplication due to its stator, which redirects the fluid flow and increases the torque transmitted to the turbine.
- Lock-up Clutch: Some torque converters have a lock-up clutch that can mechanically connect the impeller and the turbine at higher speeds. This effectively eliminates the slip between the two elements and increases overall efficiency, similar to the operation of a fluid coupling at higher speeds.
- Automotive Use: Torque converters are commonly used in automatic transmissions in vehicles, while fluid couplings were more prevalent in older manual transmissions. However, modern manual transmissions generally use clutch systems instead of fluid couplings.
- Efficiency: Fluid couplings are generally more efficient than torque converters, especially at higher speeds. Torque converters can experience efficiency losses due to fluid slippage and the operation of the stator.
- Applications: Fluid couplings find applications in various industrial machinery, such as conveyors, pumps, and crushers, where the priority is smooth power transmission and overload protection. Torque converters are primarily used in vehicles, offering the benefit of automatic gear shifting and torque multiplication during acceleration.
Overall, both fluid couplings and torque converters play essential roles in power transmission, but their specific design and application characteristics determine their suitability for different use cases.
editor by CX 2023-10-02
China OEM Stainless Steel Coupling Gear Rigid Roller Chain Fluid Tyre Grid Jaw Spider HRC Nm Motor Flange Gear Pump Rubber Spline Shaft Flexible Universal Joint Coupling
Product Description
Stainless Steel Coupling Gear Rigid Roller Chain Fluid Tyre Grid Jaw Spider HRC Nm Motor Flange Gear Pump Rubber Spline Shaft Flexible Universal Joint Coupling
Product Description
Main products
Coupling refers to a device that connects 2 shafts or shafts and rotating parts, rotates together during the transmission of motion and power, and does not disengage under normal conditions. Sometimes it is also used as a safety device to prevent the connected parts from bearing excessive load, which plays the role of overload protection.
Couplings can be divided into rigid couplings and flexible couplings.
Rigid couplings do not have buffering property and the ability to compensate the relative displacement of 2 axes. It is required that the 2 axes be strictly aligned. However, such couplings are simple in structure, low in manufacturing cost, convenient in assembly and disassembly, and maintenance, which can ensure that the 2 axes are relatively neutral, have large transmission torque, and are widely used. Commonly used are flange coupling, sleeve coupling and jacket coupling.
Flexible coupling can also be divided into flexible coupling without elastic element and flexible coupling with elastic element. The former type only has the ability to compensate the relative displacement of 2 axes, but cannot cushion and reduce vibration. Common types include slider coupling, gear coupling, universal coupling and chain coupling; The latter type contains elastic elements. In addition to the ability to compensate the relative displacement of 2 axes, it also has the functions of buffering and vibration reduction. However, due to the strength of elastic elements, the transmitted torque is generally inferior to that of flexible couplings without elastic elements. Common types include elastic sleeve pin couplings, elastic pin couplings, quincunx couplings, tire type couplings, serpentine spring couplings, spring couplings, etc
Coupling performance
1) Mobility. The movability of the coupling refers to the ability to compensate the relative displacement of 2 rotating components. Factors such as manufacturing and installation errors between connected components, temperature changes during operation and deformation under load all put CHINAMFG requirements for mobility. The movable performance compensates or alleviates the additional load between shafts, bearings, couplings and other components caused by the relative displacement between rotating components.
(2) Buffering. For the occasions where the load is often started or the working load changes, the coupling shall be equipped with elastic elements that play the role of cushioning and vibration reduction to protect the prime mover and the working machine from little or no damage.
(3) Safe, reliable, with sufficient strength and service life.
(4) Simple structure, easy to assemble, disassemble and maintain.
How to select the appropriate coupling type
The following items should be considered when selecting the coupling type.
1. The size and nature of the required transmission torque, the requirements for buffering and damping functions, and whether resonance may occur.
2. The relative displacement of the axes of the 2 shafts is caused by manufacturing and assembly errors, shaft load and thermal expansion deformation, and relative movement between components.
3. Permissible overall dimensions and installation methods, and necessary operating space for assembly, adjustment and maintenance. For large couplings, they should be able to be disassembled without axial movement of the shaft.
In addition, the working environment, service life, lubrication, sealing, economy and other conditions should also be considered, and a suitable coupling type should be selected by referring to the characteristics of various couplings.
If you cannot determine the type, you can contact our professional engineer
Related products
Company Profile
Our Equipments
Main production equipment:
Large lathe, surface grinder, milling machine, gear shaper, spline milling machine, horizontal broaching machine, gear hobbing machine, shaper, slotting machine, bench drilling machine, radial drilling machine, boring machine, band sawing machine, horizontal lathe, end milling machine, crankshaft grinder, CNC milling machine, casting equipment, etc.
Inspection equipment:
Dynamic balance tester, high-speed intelligent carbon and sulfur analyzer, Blochon optical hardness tester, Leeb hardness tester, magnetic yoke flaw detector, special detection, modular fixture (self-made), etc.
Machining equipments
Heat equipment
Our Factory
Application – Photos from our partner customers
Company Profile
Our leading products are mechanical transmission basic parts – couplings, mainly including universal couplings, drum gear couplings, elastic couplings and other 3 categories of more than 30 series of varieties. It is widely used in metallurgical steel rolling, wind power, hydropower, mining, engineering machinery, petrochemical, lifting, paper making, rubber, rail transit, shipbuilding and marine engineering and other industries.
Our factory takes the basic parts of national standards as the benchmark, has more than 40 years of coupling production experience, takes “scientific management, pioneering and innovation, ensuring quality and customer satisfaction” as the quality policy, and aims to continuously provide users with satisfactory products and services. The production is guided by reasonable process, and the ISO9001:2015 quality management system standard is strictly implemented. We adhere to the principle of continuous improvement and innovation of coupling products. In recent years, it has successfully developed 10 national patent products such as SWF cross shaft universal coupling, among which the double cross shaft universal joint has won the national invention patent, SWF cross shaft universal coupling has won the new product award of China’s general mechanical parts coupling industry and the ZHangZhoug Province new product science and technology project.
Our factory has strong technical force, excellent process equipment, complete professional production equipment, perfect detection means, excellent after-sales service, various products and complete specifications. At the same time, we can provide the design and manufacturing of special non-standard products according to the needs of users. Our products sell well at home and abroad, and are trusted by the majority of users. We sincerely welcome friends from all walks of life at home and abroad to visit and negotiate for common development.p
Fluid Couplings in Wind Turbines for Power Generation
Yes, fluid couplings can be used in wind turbines for power generation, and they play a significant role in optimizing the performance and efficiency of the turbine system. In a wind turbine, the fluid coupling is typically installed between the rotor hub and the main gearbox.
Here’s how fluid couplings are beneficial in wind turbines:
- Soft Start and Load Distribution: During the startup phase, the wind turbine experiences varying wind speeds, and a fluid coupling allows for a smooth soft start by gradually transferring torque from the rotor to the gearbox. This reduces mechanical stress on the components and prevents sudden load shocks.
- Torque Limiting: In high wind conditions, when the wind speed exceeds the rated limit, the fluid coupling can slip, decoupling the rotor from the gearbox. This torque limiting feature protects the gearbox and other drivetrain components from overloading and potential damage.
- Torsional Vibration Damping: Wind turbines are subject to dynamic loads and torsional vibrations due to wind gusts. The fluid coupling acts as a torsional damper, damping these vibrations and ensuring smoother and stable operation of the system.
- Overload Protection: If there is a sudden increase in wind speed, causing an overload condition, the fluid coupling helps absorb the excess torque and protects the turbine from overloading.
- Contamination Prevention: Wind turbine environments are often exposed to dust, dirt, and moisture. The fluid coupling provides an enclosed and sealed environment for the drivetrain, preventing contaminants from entering and extending the life of internal components.
- Redundancy: Some wind turbine designs employ multiple drivetrain stages, including redundant fluid couplings. This redundancy can enhance the reliability and safety of the turbine by providing backup systems in case of component failures.
- Energy Efficiency: By facilitating smooth start-ups and load distribution, fluid couplings contribute to the overall energy efficiency of the wind turbine system. This allows the turbine to harness wind energy more effectively and generate electricity efficiently.
Incorporating fluid couplings in wind turbines helps improve their overall performance, reliability, and lifespan while reducing maintenance requirements and operating costs. As a result, they are commonly used in modern wind turbine designs to optimize power generation from renewable wind resources.
Real-World Case Studies: Improved Performance with Fluid Couplings
Fluid couplings have been widely adopted in various industries, and numerous real-world case studies demonstrate their positive impact on performance and efficiency. Here are a few examples:
Case Study 1: Mining Conveyor System
In a large mining operation, a conveyor system used to transport heavy loads of ore experienced frequent starts and stops due to fluctuating material supply. The abrupt starting and stopping led to significant wear and tear on the conveyor components, causing frequent breakdowns and maintenance downtime.
After installing fluid couplings at critical points in the conveyor system, the soft start and stop capability of the fluid couplings significantly reduced the mechanical stress during operation. This led to a smoother material flow, reduced conveyor wear, and extended equipment life. Additionally, the fluid couplings’ overload protection feature prevented damage to the conveyor during peak loads, ensuring uninterrupted production.
Case Study 2: Marine Propulsion System
In a marine vessel equipped with traditional direct drive systems, the crew faced challenges in maneuvering the ship efficiently. The fixed propeller arrangement made it challenging to control the vessel’s speed and direction accurately, leading to increased fuel consumption and decreased maneuverability.
By retrofitting the vessel’s propulsion system with fluid couplings, the ship’s performance improved significantly. The fluid couplings allowed for flexible and smooth speed control, enabling precise maneuvering and reduced fuel consumption. The ability to adjust the load on the propeller enhanced the vessel’s overall efficiency, resulting in reduced operating costs and improved environmental sustainability.
Case Study 3: Industrial Pumping Station
In an industrial pumping station, the constant starting and stopping of the pumps caused water hammer and pressure surges within the pipeline network. The sudden hydraulic shocks led to pipe bursts, valve failures, and increased energy consumption.
After implementing fluid couplings in the pump drive systems, the pumps could be softly started and stopped. The fluid couplings’ torque control capabilities ensured a gradual increase in pump speed, eliminating water hammer and pressure surges. As a result, the pumping station’s reliability improved, maintenance costs decreased, and the energy consumption reduced due to smoother pump operations.
These case studies demonstrate the positive effects of using fluid couplings in various applications. They highlight how fluid couplings contribute to improved performance, reduced mechanical stress, enhanced control, and cost savings in industrial machinery and systems.
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What is a Fluid Coupling and How Does It Work?
A fluid coupling is a type of hydraulic device used to transmit torque and power between two shafts without direct mechanical contact. It consists of three main components: the impeller, the turbine, and the housing. Fluid couplings are commonly used in various industrial applications, such as heavy machinery, conveyors, and automotive drivetrains.
Working Principle: The fluid coupling operates based on the principle of hydrodynamic power transmission. It uses a hydraulic fluid (usually oil) to transfer torque from the driving shaft (input) to the driven shaft (output).
1. Impeller: The impeller is mounted on the input shaft and is connected to the prime mover (e.g., an electric motor or an engine). When the prime mover rotates the impeller, it creates a swirling motion in the hydraulic fluid.
2. Turbine: The turbine is connected to the output shaft and is responsible for transmitting the torque to the driven system. The swirling motion of the hydraulic fluid generated by the impeller causes the turbine to rotate.
3. Fluid Filling: The area between the impeller and the turbine is filled with hydraulic fluid. As the impeller rotates, it creates a vortex in the fluid, which in turn causes the turbine to rotate.
4. Fluid Coupling Working: As the impeller and turbine are enclosed in the housing, the hydraulic fluid transfers rotational energy from the impeller to the turbine without any direct physical connection. The fluid coupling allows some slip between the impeller and the turbine, which enables smooth torque transmission, dampens shock loads, and provides overload protection.
5. Slip: Under normal operating conditions, there is a slight speed difference (slip) between the impeller and the turbine. This slip allows the fluid coupling to absorb shock loads and dampen vibrations, protecting the connected machinery from sudden jolts and overloads.
Fluid couplings are advantageous in applications where a gradual start-up and controlled acceleration are required. They provide a smoother and more flexible power transmission compared to direct mechanical couplings like gear couplings or belt drives.
However, it’s important to note that fluid couplings have some energy loss due to the slip, which can result in reduced efficiency compared to direct mechanical couplings like gear couplings or belt drives.
editor by CX 2023-09-21