Plate hammer for overlaying of impact crusher

Abstract

The invention discloses a plate hammer for overlaying of an impact crusher. The plate hammer comprises a rotor body, a plurality of long-bar-shaped protruding bodies and plate hammer bodies. The long-bar-shaped protruding bodies are evenly distributed on the surface of the outer ring of the rotor body. Grooves are formed in the plate hammer bodies. The long-bar-shaped protruding bodies correspond to the grooves of the plate hammer bodies. Through bolt holes are formed in the long-bar-shaped protruding bodies, and step holes corresponding to the bolt holes are formed in the plate hammer bodies. Bolts penetrate the step holes and the bolt holes and are firmly fixed to lock nuts. Rectangular grooves are formed in the two sides of the surface of each plate hammer body in the axial direction, and abrasion-resisting alloy blocks are arranged in the rectangular grooves in an overlaying manner. According to the plate hammer for overlaying of the impact crusher, the rectangular grooves are formed in the two side faces of each plate hammer body and abrasion-resisting welding rods are arranged in the rectangular grooves in an overlaying manner so that abrasion-resisting layers can be effectively prevented from falling, and the service life of the plate hammer bodies is prolonged; and each plate hammer body is of a symmetric structure so that after one face is abraded, the plate hammer body can be turned round for use of the other face, and the service life is prolonged by double.

Description

technical field [0001] The invention relates to a blow bar for surfacing welding of an impact crusher. Background technique [0002] The impact crusher is a machine that uses the high-speed impact of the blow bar and the rebound of the impact plate to crush the material. The wear of the blow bar is a high-stress wear. After the material enters the machine, it is subjected to the instantaneous contact impact of the high-speed rotating blow bar. Throw it at high speed along the tangential direction of the blow bar rotation to the impact plate suspended on the machine body, collide with the impact plate and then return to the blow bar rotation space. During this process, the collision between materials also occurs at the same time, so that The material has multiple impacts on the blow bar, causing the surface material of the blow bar to deform and wear for many times. Therefore, it is required that the worn blow bar material should not only have sufficient hardness, but also h...

AI Technical Summary

Problems solved by technology

[0003] The existing blow bar is fastened on the side of the boss of the rotor body and can only be used on one side, that is, after one side is worn out, the blow bar will be scrapped, the material utilization rate is low, and the service life is short. The method of surfacing wear-resistant welding rod can be used Extend the service life, but the wear-resistant layer of surfacing is easy to fall off

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