Bolt-fixture-free impact plate of impact crusher

Abstract

The invention relates to the field of mine machinery and discloses a bolt-fixture-free impact plate of an impact crusher, solving the problems that the impact plate is quick to abrade, short in service life, easy to break and easy to deform due to impact and crushed materials take a flaky shape easily. The impact plate is installed at one end of a crushing cavity; an impact plate fixing device is installed on a non-working surface; the impact plate fixing device is outwardly convex, so that the middle part of the impact plate is thickened, impact-resistant and difficult to deform; and according to different materials, the angle and the shape of a working surface of the impact plate are correspondingly changed into different concavo-convex shapes. The bolt-fixture-free impact plate of the impact crusher has the advantages that: the bolt-fixture-free impact plate of the impact crusher is impact-resistant, free of deformation and durable; the utility ratio of a single impact plate is four times higher than that of the impact plate in the current market; the impact plate can be abraded till 10-15mm from the bottom; the bolt-fixture-free impact plate of the impact crusher is energy-saving, convenient to maintain and long in service life; the working surface of the impact plate adopts a special concavo-convex shape, so that the formation possibility of flaky materials is reduced and the quality and the yield of cuboid products are increased.

Description

technical field [0001] The invention relates to the field of machinery, in particular to a mining machine, more specifically to a crusher. Background technique [0002] The impact crusher uses the blow bar on the high-speed rotating rotor to produce high-speed impact on the materials fed into the crusher cavity for crushing, and the crushed materials are thrown to the impact plate at the other end of the crushing cavity at high speed along the tangential direction. It is crushed again, and then rebounds from the impact plate to the blow bar, and continues to repeat the above process. Due to the impact of the blow bar, the impact with the impact plate and the collision between the materials, the material will continuously produce cracks, become loose and be crushed. It can be seen from the crushing process of the material that the impact plate plays an important role in the crushing of the material. [0003] At present, the impact plates of impact crushers on the market have...

AI Technical Summary

Problems solved by technology

[0003] At present, the impact plates of impact crushers on the market have the following problems. On the one hand, the installation surfaces are all bolted together, which wears out very quickly and has a short service life. On the other hand, the impact surfaces cannot meet the needs of materials, and the broken The material tends to be flaky

In addition, the middle part of the existing counterattack plate is subject to a large impact force, which is very easy to wear and tear, so that the counterattack plate becomes invalid

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