The reason why roller chain transmission is not suitable for high-speed transmission is that the instantaneous chain speed and instantaneous transmission ratio of the roller chain change, the transmission stability is poor, and there is impact and noise during operation, so it is not suitable for high-speed occasions and is not suitable for frequent rotation directions. changed circumstances.
Advantages of roller chain transmission:
Compared with the belt drive, there is no elastic sliding and slipping phenomenon, the average transmission ratio is accurate, the operation is reliable, and the efficiency is high; the transmission power is large, the overload capacity is strong, and the transmission size is small under the same working conditions; the required tension force is small and acts on The pressure on the shaft is small; it can work in harsh environments such as high temperature, humidity, dust, and pollution.
Disadvantages of roller chain drives:
It can only be used for transmission between two parallel shafts; it has high cost, is easy to wear and stretch, has poor transmission stability, and will produce additional dynamic loads, vibrations, impacts and noises during operation. It is not suitable for use in rapid reverse transmission.