a coal mining machine

Abstract

The invention discloses a coal mining machine which is used for a vertical-layer working surface underground a coal mine. The coal mining machine comprises cutting mechanisms, a machine body, a traveling mechanism and the like, and is characterized in that the cutting mechanisms of the coal mining machine are respectively arranged at one side, close to a top plate, and one side, close to a bottom plate, of the machine body, coal falling positions of the coal mining machine are changed into two sides of the machine body from one side of the machine body, rollers at two sides of the machine body cut the coal wall below the coal mining machine into two trenches with the movement of the machine body in the pseudo-skewing direction, and through two rollers of which the rotating directions are opposite, cut coals are loaded in conveyors for being carried away; and in the working surface without conveyors, coals automatically slide by means of a pseudo-skewing dip angle, thus realizing coal machining on the vertical layer working surface.

Description

technical field [0001] The invention relates to a coal mining machine for a vertical seam coal mining face in a coal mine. Background technique [0002] Existing shearer is divided into riding conveyor shearer and floor climbing shearer according to the walking mode, and is divided into single drum and double drum according to the number of drums. The cutting mechanism of the shearer is installed on the side of the fuselage close to the coal wall, and its propulsion direction is also along the bottom plate to the direction of the coal wall. The width of the cutting mechanism is the theoretical cutting depth of the shearer. In the steeply inclined working face, the anti-sliding problem of the shearer is difficult to solve. At the same time, because the inclination angle is too large, it is easy for coal to roll down along the bedding direction, and the coal will roll faster and faster along the bedding direction, which is unstoppable. Once it hits the operator, the conseque...

AI Technical Summary

Problems solved by technology

[0004] However, in the vertical seam mining face, the coal wall is below the feet of the coal mining workers, and these existing shearers cannot be used.

Therefore, for decades, coal can only be mined by blasting, which has great potential safety hazards in mines with protruding gas. At the same time, it is entirely dependent on manual shoveling of coal for shipment, so the labor intensity of workers is high and the production efficiency is very low. Therefore, it has not been widely promoted.

Images