How to choose the right single diaphragm coupling

Diaphragm coupling specifications are divided into single diaphragm coupling and double diaphragm coupling, they are often used in servo system, diaphragm and has a good torque rigidity, is also suitable for large torque, high speed, heavy machinery coupling, so we know how to choose the right diaphragm coupling? Next follow Xiaobian to learn about it:

Diaphragm coupling

1. The single diaphragm coupling is composed of a diaphragm sleeve. The diaphragm is fastened to the bushing with pins without loosening or causing recoil between the diaphragm and the bushing. Some manufacturers offer two diaphragms, while others offer three diaphragms with one or two rigid elements in the middle, which are attached to the bushing on both sides.

2, diaphragm coupling this characteristic is a bit like bellows coupling, in fact, coupling transfer torque in the same way. The diaphragm itself is thin, so it bends easily when the relative displacement load is generated, so it can withstand deviations of up to 1.5 degrees while producing a low bearing load in the servo system.

3, diaphragm coupling is often used in servo system, diaphragm has good torque rigidity, but slightly less than bellows coupling.

4, on the other hand, the diaphragm coupling is very delicate, if misused in use or not properly installed is easily damaged. So the deviation in the normal operation of the coupling tolerance range is very.

5. Adjust the model according to the axle diameter: the preliminary selected connecting size of the bearing coupling, namely, the axle hole diameter D and the axle hole length L, should meet the requirements of the main and driven end axle diameter, otherwise, the specification of the coupling should be adjusted according to the axle diameter D. It is a common phenomenon that the shaft diameter of the master and the driven end is not the same. When the torque and speed are the same, the shaft diameter of the master and the driven end is not the same, the coupling model should be selected according to the large shaft diameter. In the newly designed transmission system, seven axle hole types in accordance with GBT3852 should be selected, J1 type axle hole type is recommended to improve versatility and interchangeability, axle hole length according to I bearing coupling product standards.