Operating principle of transmission shaft The automobile transmission shaft works through the mutual cooperation of three important components, namely, shaft tube, telescopic sleeve and universal joint. The transmission shaft is the shaft that can transmit power in the transmission shaft of the universal transmission device. For vehicles with front engine and rear wheel drive, it is the shaft that transmits the rotation of the transmission to the final drive. It can be several sections. The joints can be connected by universal joints. The universal joints are the key components of the automobile transmission shaft. They are between the front axle shaft and the wheels that are responsible for driving and steering. The expansion sleeve of transmission shaft with traditional structure is to weld the spline sleeve and flange fork together, and weld the spline shaft to the transmission shaft tube.

The automobile transmission shaft is generally a circular part that can be connected or assembled, moved and rotated. It is generally made of light alloy steel pipe with good torsion resistance. In terms of composition, it is usually composed of shaft tube, expansion sleeve and universal joint. The automobile transmission shaft is a rotating body with high speed and few supports. Its dynamic balance is very important. Generally, the transmission shaft must undergo dynamic balance test before leaving the factory and be adjusted on the balancing machine.

As an important part of the vehicle transmission system to transmit power, the automobile transmission shaft, together with the gearbox and drive axle, can transmit the power of the engine to the wheels, so that the vehicle can generate driving force. Usually, special automobile drive shafts are mainly used in oil tank trucks, refueling trucks, sprinklers, sewage suction trucks, manure suction trucks, fire engines, high-pressure cleaning vehicles, road clearing vehicles, aerial working vehicles, garbage trucks and other vehicles.