When the ore crusher is in operation, if the working voltage is unstable, it will cause the eccentric shaft's tightening bush to loosen or fall off, and eventually cause the bearing seat of the frame to approach, which is easy to cause the eccentric shaft to be damaged. The problem of stuck firmly. The eccentric shaft will not rotate normally. This shows how important it is to ensure the stability of the ore crusher's voltage. Moreover, it is necessary to re-install the tightening bush of the eccentric shaft to ensure that it is in a good condition.     If the tightening bush of the eccentric shaft is damaged, the structure of the tightening bush of the eccentric shaft should be replaced in time. Moreover, when the voltage of the ore crusher is unstable during operation, the tension of the rotating belt will increase during the operation of the equipment, resulting in a series of problems such as the belt is too loose, the belt slips, and the belt fails. Moving parts such as bearings will lose their original functions. If the material is continuously supplied into the crushing cavity, it will cause the problem of stuffiness. Therefore, it is very important to adjust the voltage of the ore crusher in time.