Jaw Plate As an important part of the crusher, the jaw plate is very popular in the market, but many users are faced with the trouble of the short life of the jaw plate of the jaw crusher and do not know what to do. There are many reasons for the short service life of the jaw crusher. In fact, it is mainly improved from the selection of materials, design, assembly and application. The fixed and movable jaws of the time division crusher must be designed to ensure that the peak of the tooth is against the valley of the tooth, so that it can squeeze the material during use, and at the same time produce a certain bending effect, which will change after crushing. The big one is very easy. In order to improve the service life of the high manganese steel jaw plate, the shape of the broken jaw plate can also be designed to be symmetrical up and down, so that it can be used interchangeably after the equipment parts are worn out. The short life of the jaw crusher's high steel jaw plate has a lot to do with assembly. When assembling, it is generally requested that the jaw plate of the crusher must be firmly pasted on the jaw plate. At the same time, pay attention to the leveling. When the crusher is working, the jaw plate of the jaw crusher cannot show looseness. If loose, it is likely to cause the jaw plate to wear or break, which will greatly affect the service life of the jaw plate. Therefore, be sure to install the jaw plate when assembling, so as to extend the service life of the Jaw Crusher plate.
The main working part of the jaw crusher is two jaw plates. One is a fixed jaw, which is vertically (or slightly inclined at the upper end) fixed on the front wall of the machine body, and the other is a movable jaw. The position is inclined and the fixed jaw plate forms a large crushing cavity at the bottom. The crushing mechanism of the jaw crusher is that the motor drives the belt and pulley, and the movable jaw moves up and down through the eccentric shaft. When the movable jaw rises, the angle between the toggle plate and the movable jaw becomes larger, thereby pushing the movable jaw plate closer to the fixed jaw plate. At the same time, the material is crushed by multiple forms such as squeezing, rubbing, and grinding; when the moving jaw moves downward, the angle between the toggle plate and the moving jaw becomes smaller, and the moving jaw plate leaves the fixed jaw plate under the action of the pull rod and spring. The crushed materials are discharged from the lower mouth of the crushing cavity. With the continuous rotation of the motor, the crushing jaws are periodically crushed and discharged to achieve mass production. Therefore, the Jaw Crusher plate is a vulnerable part of the jaw crusher during use. Wear and tear is a very common phenomenon. This kind of wear appears in the main operating body of the equipment, which undoubtedly directly affects the service life and operating efficiency of the equipment.
At present, the most common jaw plate is the high manganese steel with water toughening treatment. Due to work hardening, its hardness can reach 650Hv from 200Hv. Even so, the surface of the tooth plate will often be uneven due to extrusion under long-term working conditions. , There are scratches formed by the cutting of materials. The main factors affecting jaw wear are: material characteristics, jaw crusher operating parameters, and jaw material. After analyzing these key factors, how can we transform the knowledge of the jaw plate into selecting the right materials and use the jaw plate correctly?
On the one hand, enhancing the life of jaw crusher jaws starts from the aspects of design, material selection, assembly, and improvement during use, which can well enhance the lifespan of jaw crushers and improve the production efficiency of jaw crushers. reduce manufacturing cost. On the other hand, standardize your operations to ensure the normal operation of the machine. In the production process, the jaw plate of the crusher acts directly on the material, and the crushing force is very large, especially when crushing materials with high hardness, it is easy to cause the bolts of the jaw plate to vibrate and the nuts to loosen, which will increase the wear of the jaw plate and cause extreme Loud noise, severe jaws fall off or break off the equipment, affecting normal production. In this case, just tightening the bolts and nuts before starting the machine can not completely solve the problem. It is necessary to analyze the specific problems according to the actual situation on the spot, and find ways to solve the problem with practical methods. For example, a spring anti-loose and vibration damping device can be used to solve the loosening of the jaw plate during work, thereby prolonging the service life of the broken tooth plate and improving work efficiency. The specific method is to use a spring to make a bolt anti-loosening and self-tightening device. Put this device on the bolt and tighten the nut. The bolt loosening force generated by the huge crushing force is automatically compensated by the spring tension force, so the bolt cannot be loosened, thereby extending The service life of the jaw plate improves production efficiency. In short, in the course of use, we can find ways to solve specific problems according to specific conditions, prevent the jaws from loosening, abrasion, and breaking, so as to extend the service life of the jaws, reduce costs, and improve work efficiency.
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