Diaphragm coupling is a common mechanical transmission device, which consists of two bearings, two axial springs, a shaft sleeve and several connecting films.

The advantages of diaphragm coupling are mainly reflected in the following aspects:

1. Strong adaptability: The diaphragm coupling has good adaptability, which can eliminate the deviation between shafts to a certain extent and ensure the stability of the transmitted torque. This adaptability makes the diaphragm coupling work normally under the conditions of shaft deviation and shaft bending, and improves the reliability of the transmission device.

2. Good dynamic balance: The diaphragm coupling can keep good balance when rotating at high speed. The special structure and material selection of diaphragm make it possible to maintain small unbalanced force and vibration at high speed. This advantage is very important for the transmission effect of high-speed rotating equipment.

3. High torsional rigidity: The diaphragm of diaphragm coupling has high torsional rigidity, which can bear the transmission torque while maintaining small torsional deformation. This torsional stiffness can effectively transmit torque, and provide certain shock absorption and buffering functions to reduce the impact and vibration in the transmission process.

4. Convenient installation and maintenance: The diaphragm coupling is relatively simple in structure, compact in size, light in weight and convenient to install. At the same time, the diaphragm coupling itself has no lubrication point, so it does not need additional lubrication maintenance, which reduces the maintenance cost and work difficulty.

5. High reliability: The diaphragm coupling adopts a special film connection mode, which can effectively disperse and absorb the impact and vibration in the transmission process, and prolong the service life of the transmission device and mechanical equipment. At the same time, the diaphragm coupling has simple structure, no wearing parts and low failure rate, which can ensure the reliability and safety of transmission.

In a word, diaphragm coupling has the advantages of strong adaptability, good dynamic balance, high torsional stiffness, convenient installation and maintenance and high reliability. This makes diaphragm coupling widely used in various industrial fields, such as machinery manufacturing, petrochemical industry, electric power, rail transit and so on. With the continuous development of industrial technology, diaphragm coupling is also constantly innovating and improving, which provides better guarantee for the reliability, safety and efficiency of transmission device.