According to the elasticity
Transmission shafts can be classified differently according to their important components - universal joints. If there is obvious elasticity in the direction of the universal joint in the direction of torsion, it can be divided into rigid universal joint transmission shaft and flexible universal joint transmission shaft.
1. Rigid universal joint: it transmits power by the hinged connection of parts.
2. Deflection 10,000-degree joint: rely on elastic parts to transmit power, and have the effect of cushioning and shock absorption.
According to the angular rate
Rigid universal joints can be divided into unequal velocity universal joints (such as ten question shaft universal joints), quasi-constant velocity universal joints (such as duplex universal joints, three-pin shaft universal joints) and constant velocity universal joints (such as ball cage universal joints, ball fork universal joints). Equal speed and unequal speed refer to whether the angular rate of rotation of the driven shaft is equal when the driven shaft rotates with the driving shaft, of course, the average speed of the driving shaft and the driven shaft is equal.
Constant velocity joints:
The universal joint in which the angular velocity capacity of the main and driven shafts is still equal when the angle between the two axes changes, which is called a constant velocity universal joint or a constant angular velocity universal joint. They are mainly used in wheel transmissions such as steering drive axles, disconnected drive axles, etc., and are mainly used for power transmission in cars.
