Tips for prolonging the service life of jaw crushers

Release Time：2024-02-02 View：436

Starting from the improvement of material selection, assembly, and use in the design process, the service life of the jaw crusher is improved, thereby improving the production efficiency of the jaw crusher and reducing production costs. The working chamber of the jaw crusher is composed of a moving and fixed jaw, which bear enormous crushing force and material friction, and are prone to wear and tear. In order to protect the toothed plate, wear-resistant lining plates are generally installed on the surface of the moving and fixed jaw, which are called crushing plates. The surface of the crusher board is generally in a tooth shape. When crushing small pieces of material, the angle is 90 °~120 °, and its size depends on the nature and size of the material being crushed. When crushing large pieces of material, the angle is relatively large; When crushing small pieces of material, the angle can be smaller. The size of the tooth width depends on the size of the product, usually taken as approximately the discharge port width, and the ratio of tooth height to tooth pitch should be 1/2 to 1/3. The wear speed of the upper and lower crushing plates on the workbench is different, and the wear in the lower section is faster. When the jaw crusher works, the crushing plate directly contacts the material and bears enormous crushing force and material friction. The service life of the crushing plate directly affects the work efficiency and production cost of the jaw crusher. Improving the service life of the crushing board can be achieved through design, material selection, assembly, and use. In the production process, improvements are made to enhance the lifespan of the crusher. During the production process, the crushing plate directly interacts with the material, resulting in a large crushing force, especially for materials with high hardness. This causes bolt vibration, wear of the crushing plate, loosening of nuts, wear of the crushing plate, and production of noise. When the crushing plate falls off or breaks, causing the equipment to stop, the crushing plate falls off or breaks, causing the equipment to stop. In such a situation, simply tightening the bolts and nuts before starting up cannot solve the problem. It is necessary to analyze the problem in detail based on the actual situation on site and find practical and feasible methods to solve the problem. For example, a spring anti loosening and vibration damping device can be used to solve the loosening phenomenon of the broken board during operation, thereby extending the service life of the broken board and improving work efficiency. The specific method is to use a spring as a bolt anti loosening device, which is composed of an inner spring cover, a spring, and an outer spring cover. This device is threaded on the bolt and the nut is tightened because the spring is compressed to a certain extent by the nut, which will produce a strong anti vibration effect. The bolt loosening force generated by the huge crushing force is tightened by the spring, thereby extending the service life of the crushing plate. In summary, solutions can be developed for detailed issues during use to prevent loosening, increased wear, and breakage of the crushing board, thereby extending its service life, reducing costs, and improving work efficiency.