Analysis of the cause of repeated fracture of vibratory roller of vibratory roller

     钢轮测试结果示意图

A Ingersoll Rand SD-175D self-propelled vibratory roller, the new machine uses only 1900h, there is vibration force decreases obviously and the phenomenon of deviation. After the inspection found that the steel wheel (see photo) in the vibration transmission shaft broken and spline joint 6, 7 on the spline serious wear, after replacing the parts using 610h, and repeated the broken shaft and spline joint wear phenomenon. At first thought to be caused by improper assembly and lubricating oil is not enough, there is no further examination, with the manufacturers to discuss only the replacement of the lubricating oil, but the use of the 506h, once again have the same problem.

To this end, the factory three dimensional coordinate measuring device. The results show that the left and right 8 axis vibration vibration shaft 5 of the axial maximum deviation of 10mm, due to the two shaft with different vibration, vibration caused by the drive shaft can not operate normally, the torsion and shear force, thereby speeding up the fatigue wear of the shaft, the drive shaft and the spline joint wear accelerated repeated fracture 6 7, the vibration force and the deviation caused by the decline in the machine.

Finally, the manufacturers sent professionals to the scene for correction, so that the left and right two vibration axis coaxial. After the replacement of parts, the fault is eliminated.