The axial gasket and damping pad of the bevel gear shaft of the quick-change frame bevel gearbox are frequently damaged. The reason is that the axial load of the bevel gear shaft is too large, causing damage to the gaskets and damping pads of the axial bearing. That is, the load exceeds the elastic load range of the damping pad, causing the damping pad to partially plastically deform, thereby enlarging the axial gap and causing axial movement.
Axial impact and mutual wear between the gaskets cause damage to the bearing gaskets and damping pads. The main point of maintenance is that each rack should be sampled for inspection of the bevel gear box at least once a month. On-site sampling inspection of the frame, mainly to check the axial clearance.
Check radial clearance when site conditions permit. The solution is to replace the new damping pad, and the axial gasket group is changed to an integral gasket. The tightening torque of the bearing gland bolts has also been changed from 61Nm to 44Nm.
Link to this article：Failure modes and maintenance points of quick-change racks
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