The role of automobile drive shafts in automobiles

  A car driveshaft is usually a circular part that can be connected or assembled, and can be moved and rotated. It is usually made of lightweight and good torque resistance alloy steel pipe. In composition, it usually consists of shaft tube, expansion sleeve and universal joint. The automobile drive shaft is a high-speed, less-supported rotating body, and its dynamic balance is very important. Generally, the drive shaft undergoes a dynamic balance test before leaving the factory and is adjusted on the balancing machine.

As an important part of the transmission power in the automobile transmission system, the automobile transmission shaft can transmit the power of the engine together with the gearbox and the drive axle to the wheels, so that the automobile can generate driving force. Generally speaking, special vehicle drive shafts are mainly used for fuel tank trucks, fuel trucks, sprinklers, sewage suction trucks, manure suction trucks, fire trucks, high pressure cleaning vehicles, road wreckers, aerial work vehicles, garbage trucks and other models.

Automobile drive shafts cooperate with each other through three important components: axle tubes, telescopic sleeves and universal joints. The transmission shaft is the shaft that can transmit power in the transmission shaft of the general transmission device. For cars powered by the front engine and rear wheels, it transmits the rotation of the transmission to the shaft of the final drive. It can be several parts, and the parts can be connected by gimbal parts. The universal joint is a key component on the car's drive shaft, responsible for driving and steering between the front axle half shaft and the wheel.

The traditional structure of the transmission shaft telescopic sleeve is to weld the spline sleeve and the flange fork together, and the spline shaft is welded to the transmission shaft tube. Once the new driveshaft changes the traditional structure, the spline sleeve is welded into the driveshaft tube as a whole, and the spline shaft is integrated with the flange fork. This kind of drive shaft adds a tubular sealing protective sleeve outside the flange spline shaft, and sets two urethane rubber oil seals at the end of the protective sleeve.

The bushings are mostly made of copper, but there are also plastic bushings. Bushings are mostly placed in the shaft and bearing structure, very close to the bearing structure. Only the shaft can rotate on the sleeve. When assembling the shaft and bushing, a lubricant is added between the two to reduce friction during rotation.