If the stainless steel long axis of the vehicle is not too long, it can be solved by adding a hydraulic buffer on it. In addition, if it is a relatively long shaft, it can also be achieved by breaking in the middle and adding additional support frames. The traditional transmission shaft is a part of the axle, and its main function is to transmit the torque of the engine to the wheels through the transmission to push the vehicle forward. However, because the engine will produce * * * vibration during operation, it will be noise, and the transmission shaft and related components will be damaged. In order to cut off or prevent the vibration of the transmission shaft, a shock absorber is usually installed on the shaft. The shock absorber is made of rubber and metal, which can improve the noise by changing the natural vibration frequency of the axle. In four-wheel drive and rear-wheel drive vehicles, it is necessary to use a longitudinal transmission shaft to transmit the power of the engine from the front room to the rear wheel. Due to the long length of the longitudinal transmission shaft, in order to ensure its stiffness and frequency, it is usually necessary to cut in the middle of the half shaft and increase the support frame. The support frame is made of rubber and metal, which can reduce the vibration and noise level on the basis of ensuring strength. Therefore, although the natural frequency of the axle itself can well isolate the vehicle from the engine, there is no need to increase the shock absorber to avoid increasing the cost. If the long transmission shaft needs to be supported, it needs high-cost rubber and metal matching technology.