DOJ type constant velocity universal joint: the role of the cage

As an advanced transmission component, the DOJ type constant velocity universal joint can achieve constant speed transmission of power when there is a change in the angle or relative position between the two shafts. This feature makes it widely used in key parts such as the front wheel drive system, steering system and drive shaft of the car. The DOJ type constant velocity universal joint is usually composed of components such as the inner ring, outer ring, steel ball and cage, and each component has an indispensable function.
Structure and characteristics of the cage
As a key component in the DOJ type constant velocity universal joint, the cage is exquisitely designed and uniquely functional. It is usually made of lightweight and strong materials, such as metal or high-strength plastic, to ensure that it can maintain sufficient strength and reduce the overall weight when bearing various forces during the operation of the universal joint.
A notable feature of the cage is that it has a certain elasticity or deformability. This feature enables the cage to adapt to the slight deformation and vibration of the universal joint during operation.
Relationship between cage and DOJ type constant velocity joint
The role of cage in DOJ type constant velocity joint is not only a simple supporting structure, but also a key factor to ensure the stable performance and extended service life of the joint.
Ensure the correct position of steel balls:
The cage is designed with grooves corresponding to the number of steel balls. The shape and size of these grooves match the steel balls, which can tightly accommodate the steel balls and prevent them from falling off. During the operation of the universal joint, the elastic support of the cage ensures that the steel balls always roll along the predetermined trajectory, thereby maintaining the smooth transmission of power.
Reduce wear and damage:
Due to the vibration and impact of the universal joint during operation, these forces will cause serious wear and damage if they act directly on the steel balls and the inner and outer rings. The elastic support of the cage can effectively absorb and disperse these forces, thereby reducing wear and damage and extending the service life of the universal joint.
Improve the smoothness of operation:
The elastic support of the cage also helps to improve the smoothness of the operation of the universal joint. It can reduce the abnormal noise and shaking caused by vibration and impact, making the vehicle more stable and comfortable during driving.