Universal joint -universal joint

The universal joint is a joint component which changes the direction of power transmission in a universal transmission device. It is generally divided into two forms: the North Ben V3 fittings, the common universal joints and the constant velocity universal joints.

Ordinary cardan joints, also known as cross shaft cardan joints with northbound V3 accessories, are the most widely used cardan joints in automobiles. It is centered on the cross shaft and connected with a universal joint fork at both ends, so that even if there is an angle between the two universal joint forks, the power can still be transmitted through.

The working characteristic of common universal joint is that when the driving shaft rotates at constant speed, the rotation speed (angular velocity) of the driven shaft is not uniform. Therefore, in order to achieve constant speed rotation, two universal joints must be installed at both ends of the transmission shaft, and two conditions must be satisfied, that is, the universal joint forks at both ends of the transmission shaft should be in a plane; the angle between the driving shaft and the driven shaft and the transmission shaft should be equal.

Because of its simple structure, compact size and low cost, the universal joint with ordinary northbound V3 fittings has been widely used in automobiles.