Introduction of isometric drive shaft

Isometric drive shaft isometric universal joint is to connect the two axes do not coincide, and make the two axes to the same angular speed transfer movement of the organization. Is an important part of the car transmission system, its effect is the engine power from the transmission (differential) to the drive wheel of the car, to meet the requirements of the outer end of the car drive shaft angle; the engine power smoothly and securely transferred to the wheels; compensate for the jump of the inner end of the car suspension. Drive the car high-speed driving.

Used in the car speed universal joint type many, which is the most used ball cage type speed universal joint and three groove type speed universal joint, diagonal raceway type speed universal joint, it is the first ball cage, outer ball cage, half shaft composition. Because the constant velocity universal joint transmits heavy driving torque, with the heavy load, high transmission accuracy, high demand, and is a safety part, so its primary parts are selected from precision forging processing.

Constant velocity universal joint, English name: cv joint (constant velocity joint)

Constant velocity universal joint, is the active shaft and the driven shaft speed (angular speed) equal universal joint. In the front-wheel drive car, the front axle is equipped with a constant velocity joint driveshaft (drive and steering). Front-wheel drive car power, from the engine, transmission and main gearbox composed of powertrain directly to the front wheels. And the front wheel is both the drive wheel, but also the steering wheel, steering deflection point of view is very large, up to 400 above. At this time, it is not possible to use the traditional, deflection angle is very small general universal drive shaft.

Because, when the deflection angle is large, the speed and torque of the general universal joint will be large fluctuations. Therefore, it is necessary to use a large deflection angle and uniform angular velocity of the equal-speed universal joint drive shaft. The principle of constant velocity universal joint is similar to that of bevel gear meshing, because the orientation of the force transmission point is always on the plane of the equal division of the angle between the two shafts, thus ensuring equal velocity motion. The disadvantage of constant velocity universal joint is that the structure is complicated, the production process is fine, and the cost is high, so it can not completely replace the general universal joint. The presentation of equal-speed universal joint, greatly promote the development of front-wheel drive cars and all-wheel drive cars. The front wheel drive with equal speed universal joint, and the wheel end of the fixed type and differential end of the sliding type, the latter in the axial can slide elastic, to compensate for the change in axial length.