What are the causes of wear of the eccentric shaft of jaw crusher?

The two ends of the eccentric shaft of the jaw crusher are equipped with pulleys and flywheels respectively. They need to withstand bending torsion during work. Therefore, the eccentric shaft is often worn during production. So, what are the causes of wear of the eccentric shaft of the jaw crusher? 
 

1. The structure of the eccentric shaft is unreasonable. Due to some structural defects in the taper sleeve and sealing sleeve on the eccentric shaft, the eccentric shaft is prone to wear problems during production. If the thread direction of the sealing sleeve and the taper sleeve is unreasonable, and the contact area between the taper sleeve and the eccentric shaft mating surface is not enough, the taper sleeve will become loose on the eccentric shaft. Once the taper sleeve becomes loose, the outer circle of the eccentric shaft and the inside of the taper sleeve will The hole will be subject to wear at the same time.

2. The material properties do not meet the requirements. If the hardness of the materials to be crushed is high and exceeds the specified range in the instruction manual, it will easily cause the eccentric shaft of the jaw crusher to be overwhelmed. Therefore, when crushing materials, users should first analyze the characteristics of the materials and the applicable scope of the jaw crusher. Choose appropriate materials.

3. Improper lifting of the host. During the hoisting process of the main unit of the jaw crusher, it is easy to roll over, causing uneven force on one side of the eccentric shaft, resulting in serious wear and tear of one side of the eccentric shaft, and even accidents such as eccentric shaft breakage. Therefore, during the hoisting process, the user should lift the main machine correctly to extend the life of the eccentric shaft of the jaw crusher.

4. The safety device fails. When the jaw crusher is overloaded or iron blocks enter the machine, the protective lining plate will break to protect the jaw crusher from damage. If the lining plate does not play a protective role, the eccentric shaft will be subject to strong impact and break. Therefore, we must choose a lining plate with qualified quality to play a protective role and reduce the impact force of the material on the eccentric shaft, thereby reducing the wear of the eccentric shaft of the jaw crusher.