Analysis of the causes of the deformation of the diaphragm coupling

　　The working condition of the diaphragm coupling is the angular, axial and lateral deviation of the two connected shaft axes.In the meantime, the lateral misalignment generally selects a double diaphragm coupling with a central shaft to convert it into an angular misalignment to complete the compensation.Therefore, for a single diaphragm coupling, its deformation is only caused by axial and angular misalignment.The deformation of axial misalignment is relatively simple.In the process of rotation, the angular misalignment of the two shafts connected by the diaphragm coupling still persists. Together, the AB ends of the two shafts rotate around their own center lines, so they are connected to the automatic hole and the driven hole in their respective end sections. Make a circular motion in the plane.On the projection plane, each point of the diaphragm follower hole cyclically moves along the B-axis end section, so it becomes a function of time to change the rule.This time-varying displacement causes alternating stresses inside the diaphragm.