High-bearing coal mining machine walking system

Abstract

The invention relates to a high-bearing coal mining machine walking system which comprises a guide sliding shoe, a walking gear and a pin row. The walking gear and the pin row are engaged with each other. The walking gear is provided with double rows of gear teeth, and the structure parameters of the double rows of gear teeth are the same. The pin row is provided with double rows of tooth grooves,and the structure parameters of the double rows of tooth grooves are the same. The gear teeth and the tooth grooves are correspondingly engaged according to rows. The tooth faces of the gear teeth are outwards convex surfaces in the tooth width direction, correspondingly, the groove walls of the tooth grooves are inwards concave surfaces in the tooth width direction, and the walking gear and thepin row are in a mutually concave-convex embedded state on the normal sections of all engagement positions of the tooth profile of any gear tooth. The high-bearing coal mining machine walking system is high in bearing capability, high in reliability and capable of adapting to horizontal bending of the pin row, stress concentration cannot be generated on the edge of a gear of the walking gear, andthe high-bearing coal mining machine walking system can better meet the requirements for large-mining-height and large-powder direction development of coal mining machines.

Description

technical field [0001] The invention relates to a walking system of a coal mining machine, which has relatively high bearing capacity and belongs to the technical field of coal mining equipment. Background technique [0002] The driving force of the shearer walking on the coal mining face of the coal mine is usually the meshing transmission of each pin tooth from the shearer walking wheel and the pin row series of the scraper machine. The scraper pin row series consists of multiple pin rows with the same structure. The traveling wheel and the pin row of the scraper machine are in open non-conjugate meshing, which drives the shearer to tow and walk back and forth. During the walking process of the working face, the pin row is allowed to have a deflection of 1° in the horizontal plane, which is used to meet the needs when the working face is not straight and the shearer is walking in the S-bend cutting machine pit. [0003] At present, the shearer is more and more developing...

AI Technical Summary

Problems solved by technology

This application does not solve the problem of how the road wheel adapts to the horizontal deflection angle of the pin rail, nor does it solve the problem of the tooth shape, but only increases the logarithm of meshing between the wheel teeth of the road wheel and the pin rail; It is difficult to manufacture the pin row in sections facing the other row of tooth grooves

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