Ultra-thin seam coal mining machine walking system, mounting structure thereof and machine body height position adjusting method

Abstract

The invention relates to an ultra-thin seam coal mining machine walking system, a mounting structure thereof and a machine body height position adjusting method. The walking system comprises a walkingbox shell, an integrated driving wheel, a walking wheel assembly, a walking wheel shaft and a guide sliding shoe, the walking wheel shaft and a wheel shaft of the integrated driving wheel are rotationally supported on the front side wall and the rear side wall of the walking box shell correspondingly, large gears and walking wheels in the walking wheel assembly are coaxially and fixedly connected, the walking wheels are coaxially installed on the walking wheel shaft, the large gears are externally meshed with driving wheels, a left concave surface and a right concave surface are arranged on aguide sliding shoe, and the axes of the driving wheels are close to the concave surfaces; the axis position of a driving wheel shaft is fixed, the height position of a machine body is adjusted by adjusting the height position of the walking wheel shaft, and the walking system is installed through a walking box connecting port structure. According to the ultra-thin seam coal mining machine walkingsystem, the mounting structure thereof and the machine body height position adjusting method, and the height difference between the driving wheel shaft and the walking wheel shaft of the walking system of a coal mining machine can be reduced, so that the high-power low-mining-height thin or ultra-thin coal seam coal mining machine can obtain higher coal passing height energy under the condition of the same machine surface height.

Description

technical field [0001] The invention relates to a shearer walking system, in particular to a shearer walking system for a thin or extremely thin coal seam, which is a low-body high-power shearer suitable for mining thin or extremely thin coal seams. Background technique [0002] For the mining of thin or extremely thin coal seams, thin or extremely thin coal seam shearers require shorter fuselages, but on the other hand, in order to adapt to the mining of complex geological conditions such as coal and rock coexistence, the installed power is also required It needs to be larger, and as the power increases, the size of the motor and transmission system will also increase a lot, which becomes a contradiction with the requirement of the fuselage getting shorter and shorter. Therefore, the structural design of thin or extremely thin coal seam shearer is a difficulty. One of the outstanding problems is that the coal passing height under the fuselage and above the scraper conveyor...

AI Technical Summary

Problems solved by technology

[0002] For the mining of thin or extremely thin coal seams, thin or extremely thin coal seam shearers require shorter fuselages, but on the other hand, in order to adapt to the mining of complex geological conditions such as coal and rock coexistence, the installed power is also required It needs to be larger, and as the power increases, the size of the motor and transmission system will also increase a lot, which becomes a contradiction with the requirement of the fuselage getting shorter and shorter. Therefore, the structural design of thin or extremely thin coal seam shearer is a difficulty

One of the outstanding problems is that the coal passing height under the fuselage and above the scraper conveyor is relatively small. When encountering large pieces of coal, gangue, etc., it will cause the chain of the scraper machine to be stuck, the resistance of the shearer will be greatly increased, and the effective traction force will be insufficient. Wait

[0003] The industry has proposed and gradually adopted the technical solution of moving large and medium-sized parts such as motors and transmission gears forward from the top of the original scraper conveyor to the side close to the coal wall, that is, adopting the method of suspending the machine to solve the problem of large and medium-sized parts. This method is beneficial to reduce the height of the fuselage, but usually still cannot solve the problem of the small height of the coal passing

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