What is an automobile transmission shaft?

Transmission shaft is an important part of automobile transmission system to transmit power. Its function is to transfer the power of the engine, gearbox and drive axle to the wheels, so that the car can generate driving force. Purpose The transmission shaft of special purpose vehicle is mainly used for tankers, fuel trucks, sprinklers, sewage suction vehicles, dung suction vehicles, fire engines, high-pressure cleaning vehicles, road wreckers, aerial work vehicles, garbage trucks and other vehicles.

The structural transmission shaft consists of shaft tube, telescopic sleeve and universal joint. The telescopic sleeve can automatically adjust the change of the distance between the transmission and the drive axle. Universal joint is to ensure the change of the included angle between the transmission output shaft and the drive axle input shaft, and realize the equal angular velocity transmission of the two shafts. Universal joint is the key component of automobile transmission shaft. A car is a moving object. In a rear-drive car, the engine, clutch and transmission are installed on the frame as a whole, while the drive axle is connected with the frame through an elastic suspension, and there is a distance between them, so they need to be connected. When the car is driving, the uneven road surface jumps.

1. Function: Universal universal joint consists of spider, spider bearing and flange fork. Universal joint is the key component of automobile transmission shaft. On vehicles with front engine and rear wheel drive, the universal joint transmission shaft is installed between the output shaft of the transmission and the input shaft of the main reducer of the drive axle; Vehicles with front engine and front wheel drive omit the transmission shaft, and a universal joint is installed between the front axle and the wheel, which is responsible for both driving and steering. When the vehicle is running, the included angle and distance between the output shaft of the transmission and the input shaft of the main reducer of the drive axle will change due to uneven road surface, load change or different installation positions of the two assemblies. Therefore, a "variable strain" device is needed to solve this problem, so there is a universal joint.

2. Transmission characteristics: In the automobile with front engine and rear wheel drive (or all-wheel drive), due to the deformation of the suspension during the movement of the automobile, there is often relative motion between the input shaft of the main reducer of the transmission shaft and the output shaft of the transmission (or transfer case). In addition, in order to effectively avoid some mechanisms or devices (which can not realize linear transmission), there must be a device to realize the normal transmission of power, so universal joint transmission appeared.