Jaw crusher is one of the most commonly used crushing equipment in mine crushing. It is usually used for the first-level crushing in the production line. Therefore, the parts of the jaw crusher are also much worn. The most worn-out wearing parts are the jaw plant. The crushing chamber of the type crusher is composed of two jaw plates, a movable jaw and a static jaw. The material is crushed under the squeezing action of the movable jaw and the static jaw.
As we all know, the jaw plate is directly in contact with the raw material and is easily damaged. In this case, the jaw plate is the main wear-resistant part of the jaw crusher and needs to be replaced regularly. Many people know that the jaw plate should be replaced in time if it is damaged, but many people do not pay attention to how the jaw plate is broken. Understanding the causes of the jaw plate wear is of great significance to how to reduce wear and extend the service life of the jaw crusher.
In the working process of the jaw crusher, the movable jaw is attached to the movable jaw plate to make a compound pendulum movement, forming an angle with the fixed jaw plate to squeeze the stone. Viewing from the unloaded wear jaw plate, it can be found that the surface of the wear jaw plate is uneven and cutting scratches. It can be seen that the wear of the jaw plate is mainly caused by the interaction force of the extrusion of the material, and the material and the jaw, the friction between the surfaces of the plates sliding against each other.
Regarding the use of the jaw plate of the jaw crusher, Luoyang Dahua Heavy Industry will give you the following suggestions:
1. Pay attention during the working process: the crusher can only start feeding after normal operation;
2. The newly installed jaws must be tightly fixed, installed, and smoothly in contact with the surface of the machine;
3. The crushed materials should be added evenly into the crushing cavity, and side feeding or full stacking should be avoided to prevent unilateral overload or overload;
4. Under normal circumstances, the temperature rise of the bearing does not exceed 35℃, and the higher temperature does not exceed 70℃. If it exceeds 70℃, it should stop immediately, find out the cause and eliminate it;
5. Before stopping the machine, the feeding work should be stopped first, and the power head can be turned off only after the crushed material in the crushing chamber is completely discharged;
6. Choose a material with high hardness to resist extrusion, and choose a material with sufficient toughness to resist chiseling impact;
7. Improve the structure of the jaw plate to reduce the relative sliding of the material and the tooth plate and reduce friction.
Summarizing the reasons and solutions for the wear of the jaw plate of the above jaw crusher, we can see that the jaw plate must be made of materials with high hardness, wear resistance and strong resistance. Companies with mine crushing production line technology can interchange the same type of wear jaws for coarse mine crushing and cement fine crushing, thereby prolonging the service life of the tooth plate and bringing actual economic benefits to customers. Therefore, it is particularly important to choose a company with good reputation, perfect technology and complete equipment.