How to repair the wear of the eccentric shaft of the impact crusher

As a rough crushing equipment, the wear rate of the wearing parts of the impact crusher is relatively higher than that of other equipment. The main wearing parts of the impact crusher are: jaw plate, side guard plate, toggle plate and so on. However, some customers may not understand that if the eccentric shaft of the impact crusher is worn, it will *ly affect its service life and the working efficiency of the jaw crusher. Therefore, we need to take * measures to repair the wear of the eccentric shaft in time.
The main wear forms of the eccentric shaft are the severe wear of the journal and the journal of the eccentric section, the excessive bending of the axis and the fatigue fracture. If the shaft is straightened and corrected and the broken shaft is replanted for repair, the repair process is complicated, and the repair quality is not easy to guarantee. Therefore, it is rarely used. If such a phenomenon occurs, only scrap it, or change the material of the shaft to other uses. A small amount of scratches on the journal or a slight large area of wear or a pull track can be repaired by hand grinding or emery grinding; it can also be repaired by on-site brushing and plating. Heavier wear can be repaired in the following three ways.
1. Turn the worn journals to light, and use a small amount of processing on the premise of ensuring the design surface roughness. Then, based on the size of the processed journal and its deviation, the bearing is prepared according to the originally designed matching *.
2. The surface of the journal is surfacing by manual arc welding, and then cutting is performed to achieve the original design of the journal. When surfacing, the surfacing process should be correctly selected to prevent bending and deformation of the distraction shaft. When surfacing welding, the electrode should be reasonably selected, the diameter of the electrode should be small, and the current intensity should not be too high. After surfacing welding, a reasonable centering datum should be selected during processing to maintain the running accuracy after assembly.