What are the components of the drive shaft assembly? What are the characteristics?

Update:2021-10-09 00:00

The transmission shaft assembly is composed of a shaft tube, a telescopic sleeve and a universal joint. The telescopic sleeve can automatically adjust the distance between the transmission and the drive axle. The universal joint is one of the two shafts that ensure the transmission output shaft and the drive axle input shaft. The drive shaft assembly is used in a car with front engine and rear-wheel drive (or all-wheel drive). Because the car’s suspension is deformed in the middle of motion, the input shaft of the transmission shaft and the transmission ( (Or transfer case) there is often relative movement between the output shafts. In addition, in order to effectively prevent certain mechanisms or equipment from realizing linear transmission, there must be a device to realize the normal transmission of power, so the universal joint transmission must have the following characteristics:


1. The drive shaft assembly ensures that the power can be reliably transmitted when the relative position of the two connecting shafts changes within the expected range;

2. Ensure that the two connected shafts can run evenly. The additional load, vibration and noise caused by the included angle of the universal joint should be within the allowable range;

3. The drive shaft assembly (with a certain included angle) does not rotate at a uniform speed, so double universal joints (or multiple universal joints) must be used for transmission, and two universal joint forks connected to the drive shaft should be set at the same On the plane, and make the angle of the two universal joints equal, the angle of the universal joint should be minimized in the design.


The drive shaft assembly is a round object accessory that can move or rotate when connecting or assembling various accessories. It is generally made of lightweight torsion-resistant alloy steel pipe. The front engine is the axis of the rear-wheel drive car. The rotation of the transmission is transmitted to the main reducer. The main reducer can be connected to several universal joints through universal joints. It is a rotating body with high speed and little support, because its dynamic balance is very important. In general, the transmission The shaft assembly should be tested for dynamic balance before leaving the factory and adjusted on the balancer.