About vehicle power train of the drive shaft and differential

1. Why should a sliding yoke on the transmission shaft (drive axle)? What is the role of sliding? sliding yoke

The transmission shaft (drive axle) is made with a sliding yoke, mainly to make the total length of the transmission shaft telescopic, so as to ensure that no movement interference occurs under the condition that the relative position of the drive axle and the transmission changes frequently.

2. Why can't the seamless steel pipe be used to make the transmission shaft ( drive axle ) ? sliding yoke

Because the transmission shaft ( drive axle ) is a high-speed rotating part, in order to avoid the severe vibration caused by the centrifugal force, the mass of the transmission shaft is required to be evenly distributed along the circumference. The wall thickness of the seamless steel pipe is not easy to ensure uniformity, so the steel pipe with a relatively uniform thickness is rolled and welded into a tubular round shaft. sliding yoke

3. Why should the drive shaft be dynamically balanced? What measures are used to ensure balance?

Due to the fact that the quality of the transmission shaft is uneven in the circumferential direction during the manufacture, it is easy to generate centrifugal force during rotation and cause the transmission shaft to vibrate, so that the intermediate support of the transmission shaft and the gear bearing of the reducer accelerate wear. In order to eliminate this phenomenon, the drive shafts have been dynamically balanced in the factory, and a light-weight balance piece is welded to the light side during the verification. After balancing, the sliding fork and the transmission shaft are engraved with arrow marks, so as to keep the relative angular position of the two unchanged when reloading after discharge.

4. Why is the back of planet gears generally made into spherical surfaces? How to lubricate the parts of the differential?

The back surface of the planetary gear and the inner surface of the corresponding position of the differential case are made spherical, to ensure that the planetary gear is better aligned with the center, so as to facilitate correct engagement with the two side gears.

5. What is the purpose of the differential lock?

In order to improve the car's ability to pass on bad roads, some cars are equipped with a differential lock in the differential. When a driving wheel slips, use a differential lock to lock the differential, so that the differential does not function as a differential, which is equivalent to rigidly connecting the two half shafts together, so that most of the torque is even turned. The torque is transmitted to the non-slip driving wheel to make full use of the adhesion of this driving wheel to generate enough driving force to drive the car.

drive shaft parts for Automotive Agriculture Heavy Duty Industry driveline components assembly with cross drive shaft automotive transmission shaft oem manufacturer china drive shaft cardan shaft transmission shaft parts yongjiu transmission shaft parts

sliding yoke  drive axle sliding yoke  drive axle sliding yoke  drive axle