The diaphragm coupling is subjected to large deformations while transmitting torsion, thus compensating for the misalignment of the two axes. The non-metallic diaphragm coupling is restricted by the low strength and easy aging of the non-metallic diaphragm, and the compensation ability is small. The diaphragm coupling relies on the locking force of the pin group to generate the frictional torque on the contact surface, and compresses the rubber elastic sleeve to transmit the torque. Once the misalignment is beyond the permitted range, it will cause the coupling to fail.
Diaphragm couplings
The curved surface is to reduce the deformation of the diaphragm and limit the influence of centripetal force on it during high-speed operation, and the diaphragm coupling is driven by shear force. The preload disappears, resulting in a loss of zero-gap performance. When there is a large impact load, the impact force will be converted into the instantaneous rotational moment of the bolt group, and the bolt is easy to loosen or break under the large instantaneous shear force.
The key factors that affect the performance of bolted joints, the bolt tightening torque and tightening should be checked during installation and daily maintenance, and the status of the diaphragm coupling should be grasped in real time. In order to add smooth grease to the diaphragm coupling, and in order for the smooth grease to enter each coupling position, it is necessary to add not only but also to fill up, and the service life can be extended through this method of adding smooth grease.
Diaphragm couplings
The coupling connects the main and slave motors through a diaphragm to transmit torque, which has the characteristics of elastic vibration damping, no noise and no lubrication. Pay attention to the concentricity of the two shafts during installation, and check whether the diaphragm coupling is damaged during transportation before installation. Bolts are an important part of diaphragm couplings, and their correct installation directly affects the performance life of the product.