Short-span thin coal seam coal mining machine

Abstract

The invention relates to a short-span thin coal seam coal mining machine. The coal mining machine comprises a cutting system, a machine body, a guide sliding shoe, a dragging connecting device and a supporting sliding shoe; the root of a motor-free rocker arm of the cutting system is rotationally supported in a standing shell of a non-swing transmission part, and large and medium size parts such as a cutting motor, a large gear and a planetary mechanism of the cutting system do not change positions along with swing of the rocker arm; the standing shell is fixed to the machine body and locatedin front of the machine body, and the standing shell and the machine body form a basic frame of the coal mining machine; and the guide sliding shoe and the supporting sliding shoe are both installed on the basic frame, the guide sliding shoe and the supporting sliding shoe support the rear portion and the middle portion of the basic frame from the lower portion respectively, and the machine body is in floating connection with a dragging chain of a scraper conveyor through the dragging connecting device. According to the short-span thin coal seam coal mining machine, the structural arrangementproblem of the short-machine-body high-power thin coal seam coal mining machine for the ultra-thin or thin coal seam working face with the complex conditions of low mining height, high coal rock hardness and the like can be solved.

Description

technical field [0001] The invention relates to a thin coal seam shearer, which can be adapted to the mining of extremely thin or thin coal seam working faces with complex conditions such as low mining height and high hardness of coal rock. Background technique [0002] For the mining of thin or extremely thin coal seams, the mining height is often low (some mining height reaches the required 0.8m), and the geological conditions are complex (such as coal and rock coexistence, high hardness), etc. Therefore, in order to improve the reliability of the shearer, in While the body of the thin coal seam shearer is required to be short enough, the installed power is required to be larger and larger to improve its adaptability. However, as the power increases, the size of the motor and transmission system also increases correspondingly, and the space of the coal mining face is usually small when the thin coal seam is mined. If the overall size of the shearer is too large, the periph...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a short-span thin coal seam shearer, which solves the problem of structural arrangement of a low-body high-power thin coal seam shearer in an extremely thin or thin coal seam working face with complex conditions such as low mining height and high coal rock hardness.

Images