How to prevent jaw crusher wear

Time：2022-08-02 11:07:07 Share To

The jaw crusher is a commonly used equipment in the crusher industry, but when the jaw crusher is used for a long time, there will be a certain amount of wear and tear. The engineer will tell you how to prevent the wear of the jaw crusher and improve the use of the jaw crusher. life. 1. By increasing the interference of the jaw crusher, due to the clearance fit that may occur in the transition fit of the jaw crusher, the backlash occurs when the load is reversed, causing the relative vibration of the contact surface to form fretting wear. The connection achieved by the interference fit has a high bearing capacity, and it can work more reliably under shock and vibration loads, and the larger the amount of interference, the more obvious the effect, but the er the assembly stress.
2. The jaw crusher is connected to an expansion joint by changing the key. The expansion joint is to assemble one or several expansion joint sleeves (composed of inner and outer conical sleeves) between the hub hole and the shaft in the axial direction. A static connection that presses the shaft and the hub at the same time under the action of force, and can transmit torque, axial force or a combined load of the two.
3. The jaw crusher eliminates relative vibration by improving the machining accuracy. For example, the joint surface of the fixed or movable jaw plate is surface-ground to reduce the connection gap of the assembly surface, so as to eliminate relative vibration and reduce fretting wear.
4. The jaw crusher adds a liner between the contact surface and the fixed jaw plate of the jaw crusher and the front w to protect the front w of the frame. The liner is spot welded on the front w , which can be convenient Replacement.
5. The jaw crusher improves the fretting wear resistance by increasing the surface hardness. Surface modification techniques such as heat treatment, surface coating and surfacing are used to improve the fretting wear resistance.