Introduction to The Working Principle of Universal Joint Bearings

Universal joint bearing refers to the mechanical structure that uses the spherical connection to complete the power transmission of different shafts. It is a very important part of the bearing on the car. The front-engine front-wheel-drive vehicle omits the transmission shaft, and the universal joint is installed between the front axle half shaft and the wheel, which is both driving and steering. In front-engine rear-wheel drive vehicles, the universal joint transmission is installed between the transmission output shaft and the input shaft of the transaxle final drive. The combination of universal joint and drive shaft is called universal joint transmission.

Working principle of universal joint bearing:

When the automatic fork is in a straight azimuth linear bearing, and the cross axis plane is straight with the automatic axis. At this moment, the linear velocity of the connecting point of the automatic fork and the cross shaft and the connecting point of the driven fork and the cross shaft on the plane of the cross special bearing shaft is equal. The velocity projection of the driven fork onto the cross axis plane.

Because it is difficult to satisfy condition 1 when selecting the non-independently suspended thrust roller bearing frame, the relative position of the transmission and the main reducer is constantly changing, and the unequal speed can only be as small as possible.

The unequal speed of the 10-axis universal joint means that the angular velocity of the driven shaft is uneven in a circle, and the driven shaft is fast and slow. If the automatic shaft rolls at the type constant angular speed, that is, a single cross shaft universal joint is The unequal speed of transmission when there is an angle.

The included angle between the two shaft angular touch ball bearings of the first universal joint is equal to the included angle between the two shafts of the second universal joint. The double cross-shaft universal joint completes the conditions for the constant speed transmission between the output shaft of the transmission between the two shafts and the input shaft of the drive axle. The automatic fork is in a horizontal position and the plane of the cross turntable bearing shaft and the driven shaft are straight. The velocity projection of the automatic cross to the cross axis plane.

The bearing driven fork of the first universal joint is in the same plane as the automatic fork of the second universal joint. The angular speed of the main and driven shafts is related to the bearing system. The greater the angle of intersection between the two shafts, the greater the speed, and the worse the unequal speed of the drive shaft.

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