Novel peening hammer of impact crusher

Abstract

The invention discloses a novel peening hammer of an impact crusher. The novel peening hammer comprises hammer bodies and a ring body, and the ring body is in a circular ring shape, and uniformly provided with three round through holes radially; each hammer body comprises an impact ball and a bolt, and each impact ball is spherical; each impact ball and the head of each bolt are cast-in together;and each bolt bar penetrates the corresponding through hole from outside to inside, and is in threaded connection with a nut. The ring body is made of medium carbon steel with high strength and plasticity through casting, and can not be broken, and the ring body can be used for many times; three hammer bodies are provided, not only is the weight of the peening hammer increased, but also the productivity is improved since materials may be impacted for three times by the peening hammer after the peening hammer is rotated for a cycle; since the hammer bodies can be rotated circumferentially, anypart of the high manganese steel impact balls may collide with the materials, so that the wear is uniform, and the service life is long; and since the hammer bodies and the ring body are of an assembly structure, only the worn hammer body needs to be replaced, so that the utilization rate of the materials is improved.

Description

technical field [0001] The invention relates to a novel impact hammer of an impact crusher, which belongs to the technical field of mining machinery. Background technique [0002] Impact crushers are divided into hammer crushers and ring hammer crushers, which are mainly used for crushing limestone, slag, coke, coal and other materials. [0003] When the hammer crusher is working, the motor drives the rotor to rotate at high speed. The rotor body is equipped with several pin shafts along the axial direction, and the hammer heads are hinged on the pin shafts. The materials enter the crushing chamber evenly, and the high-speed rotating hammer heads impact, shear and tear Cracking the material causes the material to be broken until it is broken to the required output particle size and finally discharged out of the machine through the sieve plate. The hammer head is the most important working part of the hammer crusher. The quality, shape and material of the hammer head determ...

AI Technical Summary

Problems solved by technology

The round hammer is made of high manganese steel, and its outer ring surface is used as the striking surface. When it hits the material, it is in line contact. Due to the small contact area, the crushing effect is not good, and the ring hammer wears quickly, and it will break when worn to a certain extent.

Falling into the crushing cavity after breaking will damage other parts

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