How to extend the service life of jaw crusher crushing plate

Design, material selection:

1. In the design, the crushing plates of movable jaw and fixed jaw should have teeth peak to teeth valley. In this way, in addition to the crushing effect on the material, there is also a bending effect when crushing, and the material is easier to be crushed. In order to prolong the service life of the crushing plate, the crushing plate of small and medium-sized crusher is designed to be symmetrical in shape up and down, so that the lower part can be turned around and used when it is worn out; the crushing plate of large jaw crusher is designed to be symmetrical with each other, so that the crushing plate can be changed and used after it is worn out.

2. The material of crushing plate can choose white cast iron. White cast iron is harder, better wear resistance, easy to source and cheaper; the disadvantage is that it is brittle, easy to break and has short service life. The disadvantage of manganese steel is that it is more expensive, but from the overall consideration of service life and cost, ZGMn13 has longer service life and lower cost than white cast iron.

Assembling:

When assembling, the crushing plate must be firmly attached to the jaw plate, and the pad between them should be flat, and the soft metal (such as lead, zinc, etc.) should be used as shims between the crushing plate and jaw plate, and fastened with bolts. When the crusher is working, the crushing plate should not be loose, otherwise it is easy to break or wear the crushing plate and reduce the service life of the crushing plate. Therefore, the assembly must be installed when the crushing plate, so as to extend the service life of the crushing plate.

Improvement during use to prolong the life of crushing plate:

During the production process, the crushing plate acts directly with the material and the crushing force is very big, especially when crushing hard materials, which leads to the vibration of the bolts for installing the crushing plate and the loosening of the nut, which makes the crushing plate wear more and produces great noise, and in serious cases the crushing plate falls off or breaks to make the equipment stop and affect the normal production. In this case, just tighten the bolts and nuts before starting the machine is not a complete solution to the problem, according to the actual situation of the site specific analysis of the problem, find ways to take practical solutions to the problem.

In short, in the use of the process can be for the specific situation to find ways to solve specific problems, to prevent the crushing plate loose, increased wear, broken and other situations, so as to extend the service life of the crushing plate, reduce costs and improve efficiency.

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