Single diaphragm coupling The characteristics of double diaphragm coupling and how to choose correctly

Single diaphragm double diaphragm diaphragm coupling This characteristic is a bit like the bellows coupling, in practice the coupling transmits torque in a similar way. The diaphragm itself is thin, so it bends easily when a relative displacement load is applied, thus accepting a deviation of up to 1.5 degrees while producing a lower bearing load in the servo system. Diaphragm couplings are often used in servo systems, and the diaphragm has good torque rigidity, but less than the bellows coupling.

Diaphragm couplings are very delicate and can be easily damaged if they are misused or not properly installed in operation. Therefore, it is necessary to ensure that the deviation is within the acceptable range of the normal operation of the coupling. Choosing the right coupling is a key step in using a good coupling, and you have to think about what type of coupling to choose in the design stage.

Compared with the gear coupling, the diaphragm coupling has no relative sliding, does not require smooth, sealed, noise-free, convenient manufacturing, and can partially replace the gear coupling. The application of diaphragm coupling has been very common, and the mechanical industry specification has been formulated in China, and the new industry specification has been revised recently: JB/T 9147-1999 (instead of ZB/T J19022-90) the relationship between the torque of the coupling.