Causes of various abnormal driving shafts
发布时间：2016.01.23 新闻来源：邢台远拓汽车零部件制造有限公司
First, observe the fault phenomenon
1, when the car starts or runs in the speed change gear, the transmission shaft all has the impact sound to appear, especially in the high-speed gear, when the low speed traveling, the sound is more obvious.
2, when the car starts, the drive shaft is no noise, and when the car is running, the drive shaft has impact sound.
3, when the car starts, the drive shaft is no noise, and the car drive when the drive shaft has abnormal sound.
4, the car in the whole process of sound constantly.
Two. Analyze the cause of the trouble
1, the transmission shaft of each flange joint (or connecting bolts) loose, causing abnormal sound.
2, around the mouth of grease (commonly known as butter mouth), cross shaft road blocked oil and injection of grease, grease, can not cause cross shaft seal damage and leakage, caused by the cross shaft needle bearing work in the long-term lack of lubrication under the condition of the cross shaft, rolling pin and sleeve wear too large, the formation of looseness caused by abnormal sound.
3, universal cross shaft assembly too tight.
4, the sleeve and the universal joint fork hole matching loose, support plate bolt loose lead to the sleeve rotation, so that the universal joint fork hole wear too big, loose and cause abnormal sound.
5, the transmission second shaft spline and the flange internal spline wear too big, form loose and cause abnormal sound.
6. The support bolts of the middle support shaft of the drive shaft are loose, the middle support is loosely matched with the shaft neck of the middle drive shaft, and the back spline of the middle drive shaft is matched with the flange key groove, and the loose end nut and the back end nut are loosened.
7, the drive shaft center bearing apart, bearing raceway damage, poor bearing lubrication, excessive wear and loose.
8, drive shaft center bearing bracket position deviation, bearing preload adjustment, improper rubber pad ring sleeve damage, intermediate support bracket bolt tightening torque is too large or too small due to the deviation of stent placement and other reasons, caused by abnormal sound.
9. The cardan joints at both ends of the transmission shaft are not in the same plane, causing the constant velocity arrangement to be damaged and cause abnormal sound.
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