Analysis on the specification adjustment and use environment of the diaphragm elastic coupling

The stainless steel coupling diaphragm is the main product of our factory to provide various diaphragm couplings. The material used for the diaphragm is stainless steel at the entrance. After the vacuum heat treatment and cryogenic treatment of our factory, the strength of the material is determined. It also determines the toughness of the material.In the process of actual installation of the diaphragm coupling, there are some precautions of its own, especially if it is to be hot-installed, then they must have some of their own precautions.If you plan to heat the diaphragm coupling, you should choose a diaphragm coupling that matches them long before you go. In fact, they must make sure that they are all doubled in the process of hot-fitting. Yes, and only in this way can it meet the installation mode of the entire machine. Therefore, such a choice is particularly important. It is necessary to find out the relevant number or mark, and then make the relevant mark on it.

The elastic element of the diaphragm coupling is composed of a thin stainless steel diaphragm laminated into a diaphragm assembly. The diaphragm usually has a waist shape, a polygonal ring shape, etc., and the bolts on the same distribution circle are connected to the driving and driven flanges. .Often used in servo systems, the diaphragm has good torque rigidity, but it is slightly inferior to the bellows coupling.On the other hand, the diaphragm coupling is particularly delicate and can be easily damaged if it is misused or improperly installed during use.Therefore, it is particularly necessary to determine that the deviation is within the tolerance range of the normal operation of the coupling.Choosing the right coupling is a key step to make good use of the coupling. In the design stage, you have to consider what type of coupling to choose.

Analysis on the specification adjustment and use environment of the diaphragm elastic coupling

1. Combining our own working conditions, we choose the diaphragm coupling that suits us, then our work will be doubled. The initially selected bearing coupling connection size, namely the shaft hole diameter d and the shaft hole length L, should be Meet the requirements of the shaft diameter of the main and driven ends, otherwise the coupling specifications must be adjusted according to the shaft diameter d.

2. The working speed of the coupling and the centrifugal force caused by it.For high-speed drive shafts, balanced couplings, such as elastic couplings, should be selected, rather than eccentric slider couplings.The size and nature of the torque to be transmitted and the requirements for the function of damping vibration.

3. The choice of coupling mainly considers the speed of the required transmission shaft, the size of the load, the installation accuracy of the two connected parts, the stability of rotation, the price, etc., refer to the characteristics of various couplings, choose one Suitable coupling type.

4. Diaphragm elastic couplings are used in a variety of different host products, and the surrounding working environment is more complicated, such as temperature, humidity, water, steam, sand, alkali, salt water, radiation, etc., when choosing a coupling One of the important factors to consider.

5. For the working quality of high temperature, low temperature, oil, alkali medium, it is not suitable to choose flexible couplings with general rubber as the elastic element material, but should choose flexible couplings with metal elastic elements, such as diaphragm couplings. Serpentine spring couplings, etc.

Coupling bolts have many specifications. According to the force mode of the connection, they are divided into ordinary ones and those with reamed holes.According to the shape of the head: there are hexagonal head, round head, square head, countersunk head and so on.The hexagonal head is commonly used.The countersunk head is generally used where connection is required.The application is especially common.The maintenance is convenient and the service life is long. The nylon pin can be replaced by removing the baffle plate. The nylon pin is self-lubricating material and does not need lubrication, which not only saves lubricating oil, but also purifies the working environment.The transmission torque is large. At the same torque, the rotating diameter is mostly smaller than the gear coupling, the volume is small, and the weight is lighter. It can partially replace the gear coupling. Compared with the gear coupling, the structure is simple and the composition is There are fewer parts and it is more convenient to manufacture, without gear processing machine tools.

Before finding the center, install the pump so that the center deviation of the two couplings should be as small as possible, and the motor anchor bolts should be tightened first.At the same time, continuously rotate the rotor several times to compress the bearing.The motor should be adjusted based on the pump coupling.

The right-angle bracket should be firm, the dial indicator should be correct and flexible, and the surface of the measuring point should be smooth.At the same time pay attention to the indicated value of the pointer.After the rotor rotates, the two couplings should not be crappy, the markings should be aligned, take care not to rub the rotor with other parts, and do not touch the dial indicator tool during operation.After adjusting the center distance, apply the aforementioned method to check, and adjust the center when the center is unqualified.Then the qualified center is rechecking twice, and the values ​​measured in the two times should have little error.