Product Description

Product Description

Ever-power specialist in making all kinds of mechanical transmission and hydraulic transmission like: planetary gearboxes, worm reducers, in-line helical gear speed reducers, parallel shaft helical gear reducers, helical bevel reducers, helical worm gear reducers, agricultural gearboxes, tractor gearboxes, auto gearboxes, pto drive shafts, special reducer & related gear components and other related products, sprockets, hydraulic system, vaccum pumps, fluid coupling, gear racks, chains, timing pulleys, udl speed variators, v pulleys, hydraulic cylinder, gear pumps, screw air compressors, shaft collars low backlash worm reducers and so on. Furthermore, we can produce customized variators, geared motors, electric motors and other hydraulic products according to customers’ drawings.
The company provides a reliable guarantee for the product’s quality by advanced inspection and testing equipment: professional technical team, exquisite processing technology and strict control system. 
In recent years, the company has been developing rapidly by its rich experience in production, advanced management system, standardized management system, strong technical force. We always adhere the concept of survial by quality, and development by innovation in science and technology. 
Ever-power Group is willing to work with you hand in hand and create brilliance together! 

 

As long as the relative displacement between shafts is kept within the specified tolerance, the coupling will operate the best function and a longer working life, thus it is greatly demanded in medium and minor power transmission systems drive by mothers.

SIZE	N.m	r/min	D	D1	d1	L	C	n-M	KG
90	4	4000	90	35.5	11	28	3	4-M8*50	1.7
100	10	4000	100	40	11	35.5	3	4-M10*56	2.3
112	16	4000	112	45	13	40	3	4-M10*56	2.8
125	25	4000	125	50	13	45	3	4-M12*64	4.0
140	50	4000	140	63	13	50	3	6-M12*64	5.4
160	110	4000	160	80	15	56	3	8-M12*64	8.0
180	157	3500	180	90	15	63	3	8-M12*64	10.5
200	245	3200	200	100	21	71	4	8-M20*85	16.2
224	392	2850	224	112	21	80	4	8-M20*85	21.3
250	618	2550	250	125	25	90	4	8-M24*100	31.6
280	980	2300	280	140	34	100	4	8-M24*116	44.0
315	1568	2050	315	160	41	112	4	10-M24*116	57.7
355	2450	1800	355	180	60	125	5	8-M30*150	89.5
400	3920	1600	400	200	60	125	5	10-M30*150	89.5
450	6174	1400	450	224	65	140	5	12-M30*150	145
560	9800	1150	560	250	85	160	5	14-M30*150	229
630	15680	1000	630	280	95	180	5	18-M30*150	296

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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.

Cost Implications of Using Fluid Couplings in Comparison to Other Power Transmission Methods

The cost implications of using fluid couplings in power transmission depend on various factors, including the application requirements, the size of the system, and the operational conditions. While fluid couplings offer several advantages, they may have different cost considerations compared to other power transmission methods like mechanical clutches, VFDs (Variable Frequency Drives), and direct mechanical drives.

1. Initial Investment:

The initial cost of a fluid coupling can be higher than that of a mechanical clutch or a direct mechanical drive. Fluid couplings contain precision components, including the impeller and turbine, which can impact their initial purchase price.

2. Maintenance Costs:

Fluid couplings are generally considered to have lower maintenance costs compared to mechanical clutches. Mechanical clutches have wear and tear components that may require more frequent replacements, leading to higher maintenance expenses over time.

3. Energy Efficiency:

Fluid couplings are highly efficient in power transmission, especially during soft-start applications. Their ability to reduce shock loads and provide a smooth acceleration can result in energy savings and operational cost reductions.

4. Space and Weight:

Fluid couplings are usually more compact and lighter than some mechanical clutches, which can be advantageous in applications with space constraints or weight limitations.

5. Specific Application Considerations:

The suitability and cost-effectiveness of fluid couplings versus other power transmission methods can vary based on specific application requirements. For example, in soft-start applications, fluid couplings may be the preferred choice due to their ability to reduce mechanical stress and protect connected equipment.

6. Lifespan and Reliability:

While the initial cost of a fluid coupling might be higher, their longevity and reliability can lead to lower overall life cycle costs compared to other power transmission methods.

In conclusion, the cost implications of using fluid couplings in power transmission depend on the particular application and the total cost of ownership over the equipment’s lifespan. Although fluid couplings may have a higher initial investment, their long-term reliability, energy efficiency, and lower maintenance costs can make them a cost-effective choice in many industrial applications.

Principle of Hydrodynamic Fluid Coupling

A hydrodynamic fluid coupling operates on the principle of hydrokinetics, utilizing hydraulic fluid to transmit power between an engine or prime mover and a driven load. The key components of a fluid coupling are the impeller, the turbine, and the housing filled with hydraulic fluid.

Here’s how the principle works:

1. Impeller: The impeller is connected to the engine’s crankshaft and is responsible for driving the hydraulic fluid. As the impeller rotates, it creates a flow of fluid within the housing.
2. Fluid Flow: The rotational motion of the impeller causes the fluid to move radially outward, towards the housing walls. This generates a high-velocity fluid flow in the housing.
3. Turbine: The turbine is connected to the driven load, such as a transmission or machinery input shaft. As the fluid flows onto the blades of the turbine, it causes the turbine to rotate.
4. Power Transmission: The kinetic energy of the high-velocity fluid is transferred to the turbine, resulting in the rotation of the driven load. The power transmission is achieved purely through the hydrodynamic effect of the fluid flow.
5. Slip: In a fluid coupling, there is always a slight difference in speed (slip) between the impeller and the turbine. This slip is necessary to allow the fluid to accelerate from rest to the speed of the turbine. As a result, the output speed of the driven load is always slightly less than the input speed from the engine.

Hydrodynamic fluid couplings provide several advantages, such as smooth power transmission, overload protection, and torsional vibration dampening. However, they do not provide torque multiplication like torque converters do, making them more suitable for applications where precise speed matching is required.

editor by CX 2024-01-19