Crusher for construction machinery

Abstract

The invention discloses a crusher for construction machinery, and relates to the technical field of construction. The crusher for the building machinery comprises a box body, a feeding port is formed in the top of the box body, a box cover is rotatably connected to the inner surface of the feeding port, a buffer pad is fixedly connected to the bottom of the box cover, a semi-permeable plate is slidably connected to the right side of the top of the box body, a crushing shaft and a reverse shaft are rotatably connected to the inner surface of the box body respectively, and the outer surface of the crushing shaft is uniformly connected with fixing mechanisms. The crushing shaft, an auxiliary roller, the reverse shaft and a fixed rubber shaft are arranged in the crushing box, and the four shafts are used together. If materials cannot be crushed, the materials cannot fall down through the fixed rubber shaft according to the size, and the materials can move back and forth in the box body along with the auxiliary roller, and fall down and are collected until the materials are completely crushed by the crushing shaft. Under the action of the reverse shaft, the materials can only fall from the left side, and the crushing efficiency of the machine is improved.

Description

technical field [0001] The invention relates to the technical field of construction, in particular to a crusher for construction machinery. Background technique [0002] The roller crusher is suitable for crushing medium and high hardness materials in metallurgy, building materials, refractories and other industrial sectors. This series of double-roll crushers is mainly composed of rollers, roller support bearings, pressing and adjusting devices, and driving devices. Adjustment of discharge granularity: a wedge or gasket adjustment device is installed between the two rollers, and an adjustment bolt is installed on the top of the wedge device. When the adjustment bolt pulls up the wedge, the wedge pushes the movable roller away from the fixed wheel. . [0003] The existing crushers used for building materials cannot crush the materials with appropriate strength according to the size of the materials after they are fed into the crusher, and the crushers cannot perform cyclic...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a crusher for construction machinery, which solves the problem that the crusher cannot perform cyclic crushing during the processing process, resulting in incomplete crushing of many materials, and there are still many large volumes, and the crusher During the working process, a lot of internal smoke and dust are directly discharged through the cooling vent, causing air pollution problems

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