H-shaped cutting device and high-power thin seam coal mining machine

Abstract

The invention relates to an h-shaped cutting device and a high-power thin seam coal mining machine. The h-shaped cutting device comprises a box body, and a cutting motor and a cutting transmission system which are installed in the box body, wherein the cutting transmission system comprises first to seventh gear shaft groups and a planetary reduction mechanism which are in transmission connection in sequence; the power output end of the cutting motor points to the rear and is coaxially connected with the first gear shaft group; the output end of the seventh gear shaft set points to the front and is coaxially connected with a sun gear of the planetary reduction mechanism; the front part of the cutting motor and the box body part where the cutting motor is located extend forwards in an overhanging mode to exceed the front ends of the third gear shaft group, the fourth gear shaft group, the fifth gear shaft group, the sixth gear shaft group and the seventh gear shaft group; the cutting motor and the planetary reduction mechanism are arranged side by side in a spaced mode in the left-right direction; and a left cutting device and a right cutting device of the high-power thin seam coal mining machine both adopt the h-shaped cutting devices. According to the h-shaped cutting device and the high-power thin seam coal mining machine provided by the invention, the contradiction among the machine surface height, the installed power, the coal passing space and the whole machine adaptability and stability of the thin seam coal mining machine can be solved, and the adaptability of the coal mining machine and the mining efficiency of a thin seam are improved.

Description

technical field [0001] The invention relates to a cutting device suitable for a thin coal seam shearer and a shearer using the cutting device, belonging to the technical field of coal mining machinery. Background technique [0002] The existing double-drum thin coal seam shearers at home and abroad usually have two structural forms: one is a shearer with a conventional arrangement, and the other is a shearer with a floor-climbing arrangement. The former structural form is difficult to ensure a large coal passing space and a large cutting power configuration, although the latter structural form can ensure a large coal passing space and a large cutting power configuration, but due to its auxiliary support The sliding shoes act on the top of the bottom plate, which affects the normal meshing of the shearer walking system and the pin rail, and has high requirements on the bottom plate. If the bottom plate is too soft or the fluctuation is too large, it will lead to poor adaptabi...

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to provide an h-shaped cutting device and a high-power thin coal seam shearer to solve the contradiction between the height of the thin coal seam shearer machine surface, installed power, c...

Images