Universal Coupling | The Ball-cage Universal Coupling

The ball-cage universal coupling is connected to the main and driven shafts through the outer ring of the ball cage and the inner ring of the star.

universal coupling
The center of the force transmission steel ball is located in the plane passing through the center of the coupling, and is installed by In the raceway composed of the spherical outer ring and the outer spherical groove of the star-shaped inner ring, the centers of the two spherical surfaces coincide with the center of the universal coupling, in order to ensure that the centers of all steel balls are on the bisecting plane of the angle between the axes of the two shafts.

The steel ball is installed in the ball cage to ensure that when the angle between the main and driven shafts of the coupling changes, the force transmission point can always be located on the bisector of the angle. Therefore, the ball cage universal coupling The transmission speed between the main and driven shafts can be kept synchronized.

The transmission method can adopt sliding transmission or rolling transmission. When sliding transmission is adopted, in order to buffer and reduce vibration, a polymer buffer sleeve is installed on the ball arm and the force transmission arm.

When rolling transmission is adopted, the original buffer sleeve on the ball arm and the force transmission arm is converted into rolling parts, and at the same time, the original buffer pads between the ball head and the socket are also replaced by rolling parts. Meet the needs of rigid transmission.

Compared with the cross shaft universal joint, the spherical hinge plunger universal joint has the following characteristics:

(1) It has buffering and vibration reduction performance, can reduce noise, and automatically circulates lubrication;

(2) In the same rotating diameter It can increase the load-carrying capacity by 0.5 to 1 times under the inclination angle;

(3) The synchronization is good, even the single spherical hinge plunger universal joint can ensure synchronization;

(4) Axial x, radial y initial The compensation is relatively large, especially the axial x can be realized without external splines;

(5) Novel structure, light weight, good manufacturability, easy mass production, and low cost;

(6) Reliable work, convenient assembly and disassembly, It is easy to maintain and has a long service life, not only for low-speed, heavy-duty and normal-speed shafting.

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