Diaphragm couplingThe diaphragm consists of a diaphragm and two shaft sleeves.The diaphragm is fastened to the shaft sleeve with a pin and generally does not loosen or cause backlash between the diaphragm and the shaft sleeve.This characteristic is a bit like a bellows coupling. In fact, the way the coupling transmits torque is similar. The diaphragm itself is very thin, so it is easy to bend when the relative displacement load is generated, so it can withstand a deviation of up to 1.5 degrees. At the same time, a lower bearing load is generated in the servo system.
The vulnerable part of the diaphragm coupling is the diaphragm assembly, and the service life of the diaphragm assembly determines the service life and working efficiency of the coupling.
The difference between the single diaphragm coupling and the double diaphragm coupling is the ability to handle various deviations, in view of the need for complex bending of the diaphragm.Therefore, the single diaphragm coupling is not suitable for eccentricity, while the double diaphragm coupling can bend in different directions at the same time to compensate for the eccentricity.