When driving shaft is used, it often causes improper assembly and untimely maintenance due to loosely spaced joint with each department, resulting in abnormal shaking in the work.

(1) the universal Festival and the expansion joint are loose.

At the start, the body is shaking and can hear the sound, and the noise is more obvious when the speed is changed, especially at the slow speed. The reason is:

(1) Baotou North running heavy card accessories cardan shaft and needle roller wear loose, or needle roller broken;

(2) the wear of the spline tooth of the drive shaft and the sliding fork flower keyway is too much.

(3) the wear of the spline teeth on the second axis of the transmission and the floral keyway of the flange is too worn.

The fixed screws in each part of the joint are loose.

When it is overhauled, the driving shaft is sloshing on the car by hand. If the teeth are worn loose and loose, the sloshing is very obvious. The screws are loosened or the cardan shaft and the needle roller are worn or broken, and can be checked by the sloshing observation. To determine whether the key groove of the second axis of the transmission is worn or not, it can be loosened by hand brake and pushed back and forth by hand, such as the feeling of shaking on the hand brake disc, that is to say that the key groove wear is worn out, and the worn parts should be replaced.

(2) the transmission shaft is curved.

During driving, a periodical noise can be heard. The faster the speed, the louder the louder, the more serious the body shaking, the cab trembling, the steering wheel holding, the numbness of the hand. The reasons are as follows:

(1) the bending or improper installation of the transmission shaft;

Second, the flange of the transmission shaft of the Baotou North running heavy truck parts and the shaft pipe are skewed when welding.

The fixed screw of the middle bearing support is loose and the position is skewed.

Maintenance, first check the drive shaft is properly installed, if properly installed should be set up for the driving wheel, a high gear transmission shaft swing see; especially in the speed down, if the pendulum is larger, and the flange shaft tube welding or shaft bending caused by skew. At this time the drive shaft can be removed and placed on the "V" shaped iron, further checked, and finally corrected or replaced.

(3) the middle bearing is ringing.

In the course of driving, there is a sound of "wooing and wooing", the faster the speed, the bigger the noise.

The reasons are as follows:

(1) Baotou North running heavy truck parts bearing wear or lack of lubricating oil;

(2) the improper assembly of bearing;

(3) damage of rubber pad ring;

The intermediate bearing bracket fastening screws are too tight or loose.

When overhauling, check the looseness or tightness of the fastening screws of the bracket, so that the bearing position is skewed. If it is suitable to remove the intermediate support, check whether the bearing is lacking in lubricating oil or wear or not, and whether the rubber pad ring is damaged or not.