Rotor shaft for reaction type fine crusher

Abstract

The invention relates to a rotor shaft for a reaction type fine crusher. The rotor shaft comprises a connection shaft, a rotor disc and an impact block, the outer end of the middle position of the connection shaft is fixedly sleeved with the rotor disc, a plurality of fixing pieces are fixedly arranged on the outer surface of the rotor disc, the impact block is located in the fixing pieces, and connected with the fixing pieces through fixing screws, each fixing piece comprises two side plates and a bottom plate, and every two side plates are symmetrically arranged at the two ends of the uppersurface of the corresponding bottom plate; sliding blocks are arranged on the inner surfaces of the side plates, the outer surfaces are provided with protection grooves, the groove bottom faces of theprotection grooves and the sliding blocks are provided with holes matched with the structures of the fixing screws, the impact block is in a right trapezoidal shape, and the length of the impact block gradually decreases from top to bottom; and two sides of the impact block are provided with sliding grooves matched with the structures of the sliding blocks, the groove bottom faces of the slidinggrooves are provided with holes matched with the structures of the fixing screws, and a plurality of protruding blocks are arranged on the upper surface of the impact block. The rotor shaft has the advantages of being reasonable in structure and convenient to maintain.

Description

technical field [0001] The invention belongs to the field of crushing equipment accessories, and in particular relates to a rotor shaft for an impact fine crusher. Background technique [0002] The impact fine crusher is a kind of machine that crushes the material through repeated impacts between the impact block on the rotor shaft and the impact liner inside the body through the impact of the rotor shaft rotating at high speed inside the machine. The impact between the rotating impact block and the material is relatively strong, and the number of impacts is frequent, which can easily cause damage to the blow bar. However, most of the existing impact crushers use welding between the impact block and the rotor disc. It is labor-intensive and time-consuming to replace the impact block after damage, which greatly affects the working efficiency of the impact crusher; therefore, in order to solve the above problems, it is necessary to develop a rotor shaft for the impact crusher ...

AI Technical Summary

Problems solved by technology

[0002] The impact fine crusher is a kind of machine that crushes the material through repeated impacts between the impact block on the rotor shaft and the impact liner inside the body through the impact of the rotor shaft rotating at high speed inside the machine. The impact between the rotating impact block and the material is relatively strong, and the number of impacts is frequent, which can easily cause damage to the blow bar. However, most of the existing impact crushers use welding between the impact block and the rotor disc. After the impact block is damaged, it is labor-intensive and time-consuming to replace, which greatly affects the working efficiency of the impact crusher; therefore, in order to solve the above problems, it is necessary to develop a rotor shaft for the impact crusher with reasonable structure and easy maintenance.

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