The composition characteristics of the coupling and the life of the elastic coupling

　　XNUMX. Expanding ring connection: large transmission torque, high requirements for related processing dimensions, complex structure, and large coupling volume.The working principle of the account ring clamping is: the end cover is locked. When the end cover is pressed, the expansion ring is compressed at the same time. The expansion ring is divided into an inner ring and an outer ring. The shape is tapered, so when there is a pressing force When, its inner ring will be pressed tightly on the shaft, and the outer ring will be pressed tightly on the coupling sleeve.This completes the connection between the shaft and the coupling.
　　XNUMX. Key connection: large transmission torque, simple structure, low cost, small space size, but its dynamic balance is not good when rotating at high speed.The working principle of key connection is the same as that of ordinary mechanical equipment.
　　XNUMX. Clamping connection: simple structure, low cost and small space size.However, if the locking force is not enough, it will cause axial slippage between the coupling and the shaft.The clamping connection is to close the "opening" through the fastening screws at both ends to increase the clamping torque.
　　The life of the elastic coupling: Now the quality of the elastic cushion of the elastic coupling is uneven, and the service life is not clearly stated in the national standard.Its life is generally related to the torque and speed of the motor.The life of the coupling needs to be considered from many aspects. First, you have to understand the role of the coupling in the entire transmission process.In daily use, couplings have been misunderstood by many people as only transmitting torque, but the actual situation is that in addition to transmitting torque, couplings can also play a role in protecting equipment.In terms of the coupling itself, the difference in materials and processes will have a great impact on the service life of the coupling.Therefore, you need to know that the service life of your coupling can be based on the working conditions of the equipment, the material of the coupling (mainly elastic elements or other coupling accessories), and the technology of the coupling.