The transmission shaft is usually made of light and torsional alloy steel tube, which is used to connect or assemble various accessories for moving or rotating round objects. For a front-engine, rear-wheel-drive car, it is the shaft that transfers the transmission's rotation to the main reducer, which can be connected by several gimbals

According to the driving form of heavy truck, different types of drive shaft are selected. In general, a 4 x 2 drive car has only one main drive shaft. 6 4 driving form of the car has the middle drive shaft, the main drive shaft and the middle and rear axle drive shaft. 6 6 driving form of the car not only has the middle drive shaft, the main drive shaft and the middle and rear axle drive shaft, but also the front axle drive drive shaft. The middle drive shaft of a long wheelbase vehicle is generally provided with a middle support of the drive shaft. It is composed of supporting frame, bearing and rubber bearing.

The drive shaft is composed of shaft tube, telescopic sleeve and universal joint. The telescopic sleeve can automatically adjust the distance between the transmission and the drive axle. The universal joint is to ensure the change of the Angle between the transmission output shaft and the drive axle input shaft, and realize the equiangular speed transmission of the two shafts. General universal joint cross shaft, cross bearing and flange fork, etc. Steyr series heavy duty vehicles use the transmission shaft universal joint with roller cross shaft bearing, with a short and thick cross shaft, can transfer a large distance. The bearing end face is provided with a butterfly spring to compress the roller. A reinforced nylon gasket with spiral groove is added to the end face of the cross shaft to prevent sintering when power is transferred by large included Angle or large rotation distance.

The telescopic sleeve of the transmission shaft in the traditional structure is to weld the spline sleeve to the flange fork and the spline shaft to the transmission shaft tube. GWB's shafts, instead of the traditional structure, incorporate spline sleeves and shaft tubes welded together, and incorporate spline shafts and flange forks. The rectangular tooth spline is changed into the involute short tooth spline with high pressure Angle, which not only increases the strength but also facilitates the extrusion forming and ADAPTS to the need of high torque condition. On the tooth surface of telescopic sleeve and spline shaft, a layer of nylon material is coated on the whole, which not only increases the wear resistance and self-lubrication, but also reduces the damage of impact load to the transmission shaft and improves the buffering capacity.

Two polyurethane rubber oil seals are arranged at the end of the protective sleeve to form a completely sealed space in the telescopic sleeve. The telescopic spline shaft is not only dustproof but also rustproof. So in the assembly of the spline shaft and sleeve in a one-time smear grease, it can fully meet the requirements of use, do not need to install nozzle lubrication, reduce the maintenance content.

The driving shaft is a rotating body with high speed and few supports, so its dynamic balance is very important. Before leaving the factory, the general drive shaft should be put into the action balance test and adjusted on the balance machine. Therefore, a set of transmission shaft is supporting the factory, in the use of special attention should be paid.

The above contents are provided by xingtai yuantuo auto parts manufacturing co., LTD.

Company website: http://www.xtytwy.com