The coupling is not allowed to have more than the specified shaft center line skew and radial displacement, so as not to affect its transmission performance.
The correct method of installing bolts for diaphragm coupling: insert the bolt from the outside of the small hole of the flange, and then pass it into the diaphragm hole (pay attention to the direction of the diaphragm, the diaphragm is composed of many single sheets, rivets and rivet washers, rivets The gasket should be in contact with the buffer sleeve, otherwise it will affect the service life of the rivet set).
The positioning taper hole of the elastic pin gear coupling plays a role in positioning the pin bolt, so the matching part of the taper hole should be carefully checked.
Compared with gear couplings, diaphragm couplings have no relative sliding, no lubrication, sealing, no noise, basically no maintenance, more convenient manufacturing, and can partially replace gear couplings.
The alignment principle of the gear coupling is to approximate the projection of the movable end face circle of the motor on the fixed end face as a perfect circle, because the distance from the center of the movable end to the fixed end face remains unchanged.
The elastic coupling has the performance of compensating the relative deviation of the two shafts, cushioning, shock absorption, and adapting to the general occasions. The elastic coupling is made of polyurethane plastic as the elastic element, and the working temperature is -35~+80 degrees.
The diaphragm coupling is mainly composed of left and right half couplings, diaphragm sets, intermediates, bolts, locknuts, spacers and other parts.
For the force analysis of the diaphragm, the loads on the diaphragm are: ① the tension and pressure generated by the torque in the diaphragm, ② the bending moment caused by the deflection of the axis, ③ the centrifugal force of the bolt and the diaphragm, and ④ the diaphragm Elastic thrust caused by axial displacement, ⑤ bolt pre-tightening force.