How to prolong the service life of jaw crusher liner


The lining plate of jaw crusher is also called toothed plate, which greatly affects the crushing force, the composition of product particle size and particle shape in the production of jaw crusher. Because the lining plate is a part that directly contacts with ore in the crushing production. Because the lining plate will be greatly squeezed and impacted in the crushing production process, the wear of the lining plate is very serious, which will greatly reduce the service life of the lining plate , increase a lot of maintenance costs, making production very uneconomical. So how can we better extend the service life of the lining plate, or what problems should we pay attention to in the production process to extend the service life of the lining plate?
1. Use of new materials
At present, the lining plate of jaw crusher is mostly made of high manganese steel. The high manganese steel is hard and has surface hardening, which makes the lining plate wear-resistant and tough, so it is widely used. However, the lining plate made of high manganese steel has a disadvantage that it is easy to deform in use, so high manganese steel is not the ideal choice for lining plate manufacturing Choose. In recent years, foreign manufacturers and some domestic manufacturers use a kind of high chromium white cast iron to make lining plate. This material not only has the advantages of high manganese steel, but also has a longer service life than high manganese steel. Its wear resistance is very good, and it is not easy to deform.
2. Optimize lining plate assembly
The first thing to note is that the liner must be firmly attached to the jaw plate, and the two should be padded. On the other hand, due to the serious wear of the lining plate in the production process, the bolts for installing the lining plate will be loose. When the bolts are loose very seriously, it will accelerate the wear of the lining plate and generate a lot of noise. When the bolt is loose seriously, it will also cause the liner plate to fall off and cause the jaw crusher to stop working, which not only increases the maintenance cost, but also affects the normal production work. In this case, the spring can be added to prevent the bolt from loosening, which not only prolongs the service life of the lining plate, but also improves the production efficiency of the jaw crusher.
3. Positioning method of lining plate
The positioning of the jaw crusher lining plate must rely on the upper and lower wedge iron and the edge guard plate. The lining plate is the form of the mother and child plate, and the positioning mode is also the same. The thickness of the ear is divided so that the daughter plate and the mother plate are each half. In addition, it is important to heighten the lining plate. In terms of the installation of the sub base plate, it should be noted that the side guard plate presses the sub base plate, and the sub base plate presses the sub base plate, so that the sub base plate can rest on the body. If the casting process of the sub base plate is not qualified, it needs to be planed, because if there is a problem in the casting, the sub base plate can not be well fixed.
As a supplier with nearly 30 years' manufacturing, Shuguang Heavy Machinery also produces and sells hammer crushers, impact crushers, vertical shaft crushers, cone crushers, compound crushers, Raymond mills, high pressure mills. Powder machine, vertical mill, ultra-fine grinding machine, ball mill, double-shaft shredder and other heavy equipment crusher. Feel free to contact us for more details.
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