Drive chain type:
Chains can be divided into drive chains, hoisting chains and traction chains. The hoisting chain and the hoisting chain are used for lifting and transporting machinery. The drive chain is widely used in general mechanical transmission. This chapter only describes the transmission chain. The drive chain can be further divided into a roller chain and a toothed chain.
The chain drive consists of a chain and a sprocket mounted on a parallel shaft that transmits motion and power through continuous engagement of the chain and sprocket teeth.
Transmission chain features:
1) Compared with the belt drive, there is no elastic sliding, which can maintain an accurate average transmission ratio, and the transmission efficiency is high; the chain does not require a large tension, so the load on the shaft and the bearing is small; it does not slip, and the transmission is reliable. , strong overload capability, can work better under low speed and heavy load;
2) Compared with gear transmission, it can have a large center distance, can work in high temperature environment and dusty environment, and has lower cost;
3) The shortcoming is that the instantaneous chain speed and the instantaneous transmission ratio are all changed, the transmission is poor in stability, there is impact and noise in the work, it is not suitable for high-speed occasions, and it is not suitable for the case where the direction of rotation changes frequently.
