Traction system of thin seam shearer

Abstract

The invention relates to a traction system of a thin seam shearer. The traction system comprises a traction shell, a high-speed section reducing mechanism, a middle section reducing mechanism and a traction motor, wherein the traction motor is in an L shape and comprises a front-and-back extended section and a left-and-right extended section, the traction motor and the high-speed section reducingmechanism are arranged in the front-and-back extended section, the middle section reducing mechanism is arranged in the left-and-right extended section, an output shaft of the traction motor is coaxially and fixedly connected with the input end of the high-speed section reducing mechanism, the output end of the high-speed section reducing mechanism is coaxially and fixedly connected with the inputend of the middle section reducing mechanism, and compared with the input end, the output end of the middle section reducing mechanism is close to the end, which is far from the front-and-back extended section, of the left-and-right extended section. According to the traction system, the large passage height under machines can be obtained in the condition of the same machine height of the high-power and low-mining height thin or ultrathin seam shearer, and additionally, the problems of high traction resistance, wear increase of a guide device and the like in an existing suspension machine body mode is solved.

Description

technical field [0001] The invention relates to a shearer traction system, in particular to a low-body and 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, the fuselage of thin or extremely thin coal seam shearers is required to be shorter and shorter, 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 l...

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to provide a traction system for a thin coal seam shearer, which can enable a thin or extremely thin coal seam shearer with high power and low mining height to obtain a greater coal passing height at the same height of the machine surface, and at the same time solve the current problem. Some problems such as large traction resistance and aggravated wear of the guide device in the suspension mode

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