MMD crusher tooth plate dismounting tool

Abstract

The invention provides an MMD crusher tooth plate dismounting tool. The MMD crusher tooth plate dismounting tool comprises a bearing support, an input shaft, a driving gear, driven gears, spiral ejector rods, a supporting beam, a hinge mechanism and a grappler. The input shaft is put in the center of the bearing support, the spiral ejector rods are symmetrically put on the two sides of the bearingsupport, a hexagonal prism is arranged at the upper end of the input shaft, the lower end of the input shaft is connected with the driving gear through a key, the upper ends of the spiral ejector rods are connected with the driven gears through keys, threaded rods are arranged at the lower ends of the spiral ejector rods, symmetric threaded holes and hinge holes are formed in the supporting beam,the supporting beam can move up and down through the cooperation of the threaded rods at the lower ends of the spiral ejector rods and the threaded holes, a chain link at the upper end of the hinge mechanism is connected with the supporting beam through a pin shaft, a threaded rod is arranged on the upper portion of the grappler, connection with a U type hinge link at the lower end of the hinge mechanism is achieved through the cooperation with a nut, an inverted arch-shaped hook is arranged on the lower portion of the grappler, and a tooth plate can be effectively hooked. The structure is simple, the tooth plate can be more conveniently dismounted, potential safety hazards caused by a traditional dismounting method can be avoided, the labor intensity of workers is reduced, and the working efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of mechanical accessories and relates to a removal tool, in particular to a removal tool for tooth plates of MMD crushers. Background technique [0002] The tooth plate is a kind of pick form of the MMD series crusher, and the material crushing process is realized by shearing and extruding the material through the mutual meshing between the tooth plates. The tooth plate is the key part of the crusher for crushing coal and other materials. During the crushing process, the teeth crown will be broken, worn and deformed due to continuous contact and friction with the material. When the tooth plate is worn to a certain extent, the crushing of the crusher The capacity will drop rapidly, resulting in material return failure, and the crushed material block cannot meet the demand, and the tooth plate needs to be replaced in time. [0003] Due to the presence of wet materials and soil in the materials to be crushed, ...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the defects and safety hazards existing in the traditional MMD crusher tooth plate removal method, the present invention proposes a MMD crusher tooth plate removal tool, the technical solution is as follows: a MMD crusher tooth plate removal tool, the removal tool includes a connecting Structure, support structure, the connection structure includes a bearing support and a screw ejector rod, and the spiral ejector rods are symmetrically placed on both sides of the bearing support to play a supporting role. The support structure includes a support beam, and symmetrical The threaded hole and the hinge hole, the lower end of the screw jack rod is a threaded rod, and the threaded rod at the lower end of the screw jack rod is connected with the threaded hole of the support beam to realize the up and down movement of the support beam;

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