Jaw Crusher Bearing Maintenance

Jaw crusher as a heavy crusher, wear and tear in the daily work is unavoidable, we can only achieve regular maintenance can extend the service life to a large limit, so for the mandrel jaw crusher, eccentric shaft and Bearings should be subject to regular, timely repairs and maintenance. The following describes the maintenance of jaw crusher bearings from the aspects of bearing wear and bearing bush quality:

First, the wear of the bearing

If there is little wear on the shaft, just to repair its geometry, it can be turned on a lathe to achieve the correct geometry of the journal and then reduce the bearing inner diameter accordingly. However, after several such treatments, if the journal size is reduced by 5% from the original, it is not allowed to turn again, and the new shaft should be replaced.

Second, the quality of the bearing

The Jaw Crusher works under impact load. The babbitt lining on the bearing bushes. The working period of the Red Star Heavy Equipment is about two years. If it exceeds the deadline, it will need to be recast. If the eccentric shaft and the bearing shell, the spindle and the bearing shell are worn out, and the top clearance is more than 1.5 times the original assembly clearance, the gasket must be adjusted or replaced; if the oil groove wears 1.5 mm, the oil groove and adjustment should be restarted. The gap between the head cover and the eccentric shaft of the connecting rod, worn to more than 1.5 times the assembly clearance, also requires pad adjustment or replacement of new ones. When the babbitt on the bearing shell has deep peeling or large scratches, it should be recast. For the quality of the bearing after processing have the following requirements: the babbitt alloy surface color is uniform, no light, silver white; babbitt surface layer should not have ash, cracks, sand holes, shrinkage holes and shelling phenomenon.

Although these two aspects are very small, the maintenance of the axis of the jaw crusher is very necessary and must not be neglected. Only the completeness of the various components of the equipment can make the equipment play a greater role. . Therefore, in the daily use process, equipment maintenance cannot be reduced.