Buy Jaw Crusher

Buy Jaw Crusher

 Two major failures of the Jaw Crusher: bearing fault repair, shaft failure repair and determination. Below we will analyze the two major troubleshooting points:

Maintenance points for two major failures of the Jaw Crusher

Two major failures of the Jaw Crusher: bearing fault repair, shaft failure repair and determination. Below we will analyze the two major troubleshooting points:

Bearing fault repair worn parts

The shaft is rotated by the bearing support, which is the heaviest part of the load and is a component that is easily worn.

1, fault check. In-service inspection; when the rolling bearing is short of oil, you will hear the sound of “bone bones”; if you hear the sound of a discontinuous “stalk”, the bearing steel ring may be broken. When the bearing is mixed with sand or other debris or the bearing parts are slightly worn, slight noise is generated. Check after disassembly; first check whether the Jaw Crusher bearing rolling element, inner and outer steel ring is damaged, rust, scar, etc., then pinch the inner ring of the bearing, and flatten the bearing, the other hand push the outer rigid ring, if The bearing is good, the outer steel ring should rotate smoothly, there is no vibration and obvious stuck in the rotation, and the outer steel ring does not reverse after stopping. Otherwise the bearing is no longer usable. The left hand is stuck in the outer ring, and the right hand pinches the inner steel ring and pushes it in all directions. If it feels loose when pushed, it is severely worn.

2. Trouble-fixing: The rust spots on the outer surface of the bearing can be erased with sandpaper and then put into gasoline for cleaning; or if the bearing has cracks, the inner and outer rings are broken or the bearing is excessively worn, the new bearing should be replaced. When replacing a new bearing, use the same bearing as the original model.

Shaft troubleshooting

1. Journal wear; when the journal wear is not large, a layer of chrome can be plated on the journal and then ground to the required size; when there is more wear, it can be surfacing on the journal and then cut and polished on the lathe. If the journal wear is too large, turn 2-3mm on the journal, re-seat a sleeve, heat the sleeve on the journal, and then turn to the required size.

2. The shaft is bent; if the shaft of the Jaw Crusher is not bent, it can be repaired by polishing the journal and slip ring; if the bending is more than 0.2mm, the shaft can be placed under the press and pressed and corrected at the bend. The corrected shaft surface is polished with a lathe; if the bending is too large, a new shaft is required.