Analysis of Abrasion of Crusher Plate of Jaw Crusher

Jaw crushers are widely used in many industries such as mining, metallurgy, and construction. Their working principle mainly depends on the pressing motion between moving jaw and fixed jaw to achieve the crushing of materials, as the jaw crusher crushes the plate. In the process of work, huge crushing force and friction force are needed to make the crusher of the jaw crusher extremely abraid. According to the data, 200 kilograms of quartz stone need to consume more than 200 pieces of fixed tooth plate of 98 kg and 120 kg of movable plate 80 Multiple blocks, while increasing production costs, seriously affect production efficiency. Nowadays, in the jaw crusher crushing plates, high toughness manganese steel is mainly used as the main material of jaw crusher crush plates. In the jaw crusher crush plate, it is hardened due to the extrusion of stone material. The hardness after hardening can reach 220Hv-600Hv. Based on the trace analysis of the crusher plate of the worn jaw crusher, it can be determined that the wear of the jaw crusher crush plate is mainly due to the extrusion between the materials and The relative slippage between the material and the jaw crusher crush plate. Jaw crusher crusher plate wear is mainly due to: the characteristics of broken materials, jaw crusher operating parameters and Jaw crusher crush plate material.

The working mechanism of jaw crusher crusher plate is mainly composed of moving jaw, fixed jaw and work chamber. The moving jaw and the fixed jaw in the jaw crusher need to bear a huge squeeze force and material when crushing the crushing material. The friction between the jaw crusher plates greatly increases the wear. In order to protect the jaw crusher, the movable jaw and the fixed jaw are equipped with wear-resistant liners on the surface. Generally, this liner plate becomes Crush plate. The crushing plate is usually made into a tooth shape. The peak angle of the tooth profile of the jaw crusher plate of the Jaw crusher is between 90° and 120°. The size of the crest angle is mainly determined by the nature and the degree of the material to be broken. It was decided that there was a positive correlation between the two. When the jaw crusher crush plate is working, the wear speed of the crush plate on the movable and fixed jaw is inconsistent, and the wear rate of the lower part is faster than that of the upper part. In order to increase the efficiency of jaw crusher crusher plates and reduce production costs, it is necessary to extend the service life of jaw crusher crush plates.

Zhejiang Haoda Machinery Co., Ltd.

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