Universal joint bearing refers to the mechanical structure that uses the ball connection to realize the power transmission of different shafts.
It is a very important part of automotive bearings.
The universal joint is combined with the drive shaft and is called a universal joint transmission.
Classification of universal joint bearings:
- Constant velocity universal thrust ball bearing joint
- Constant velocity joint
- Ball cage universal joint
- Three pin type universal bearing joint
- Double factory joint universal joint
Universal joint bearing working principle
The active fork is a linear bearing in the vertical position, and the cross-axis plane is perpendicular to the driving shaft.
At this time, the line speeds of the active fork and the cross shaft connection point and the driven fork and the cross shaft connection point on the cross special bearing shaft plane are equal.
The velocity projection of the slave fork to the plane of the cross axis.
Since the condition is difficult to meet when using the non-independent suspension thrust roller bearing frame, the relative position of the transmission without the final reducer is constantly changing, and the non-equal speed can be made as small as possible.
The non-equal speed of the 10-word universal joint means that the angular velocity of the driven shaft is not uniform during the week, and the driven shaft is fast and slow.
If the drive shaft rotates at the iso-angle of the type, that is, the non-equal speed of the transmission of the single cross-shaft universal joint at an angle.
The angle between the two universal angular contact ball bearings of the first universal joint is equal to the angle between the two joints of the second universal joint.
The double cross shaft universal joint realizes the condition of the constant speed transmission of the output shaft of the inter-axle transmission and the input shaft of the transaxle.
When the active fork is in the horizontal position and the cross slewing bearing shaft plane is perpendicular to the driven shaft, the speed of the active fork to the plane of the cross shaft is projected.
The bearing fork of the first universal joint is in the same plane as the active fork of the second universal joint.
The angular rotation speed of the main driven shaft closes the bearing system.
The larger the angle of intersection between the two axes, the greater the rotational speed, and the worse the non-equal speed of the drive shaft.