Bi-directional five-drill-bit drilling type coal mining equipment

Abstract

Bi-directional five-drill-bit drilling type coal mining equipment is suitable for mining thin and extremely thin coal beds with coal bed dip angles of 0-25 degrees and protective coal beds and mainly comprises explosion-proof motors, hydraulic couplers, bidirectional output speed reducers, a bracket, a ventilation cylinder, double-acting hydraulic thrust oil cylinders, a transmission case, spiral drill bits, spiral drill rods and a moving frame, wherein two explosion-proof motors are symmetrically distributed on the two sides of the moving frame; the two explosion-proof motors are respectively connected with the bidirectional output speed reducers through the hydraulic couplers; the bidirectional output shafts of the bidirectional output speed reducers are respectively connected with the spiral drill rods; the spiral drill rods are connected with the spiral drill bits through the transmission case; the ventilation cylinder used for ventilation of a working face is connected with the middle of the moving frame; for the same drilling type coal mining machine, when the coal beds on one side are mined completely, and the coal beds on the other side can be mined directly on the basis of not adjusting the position of the whole drilling machine, so that the mining efficiency of the thin and extremely thin coal beds can be improved, the mining time is shortened and the mining cost is reduced.

Description

technical field [0001] The invention relates to a bi-directional five-bit drilling coal mining equipment, in particular to a bi-directional mining suitable for thin and extremely thin coal seams with a coal seam inclination angle of 0-25°. Background technique [0002] The unmanned working face coal mining method of drill shearer is a more effective method in extremely thin coal seams. Drill shearer is a coal mining equipment that can solve the problem of thin and extremely thin coal seam mining and improve the recovery rate of coal resources. The currently used drilling shearer can only mine the coal seam on one side of the working face. To mine the coal seam on the other side, it is necessary to withdraw all the drilling shearer from the working face and then transport it to the other side of the working face to mine the coal seam. The operation is carried out on the side, resulting in low work efficiency, waste of time, and high labor intensity of workers. Contents of t...

AI Technical Summary

Problems solved by technology

The currently used drilling shearer can only mine the coal seam on one side of the working face. To mine the coal seam on the other side, it is necessary to withdraw all the drilling shearer from the working face and then transport it to the other side of the working face to mine the coal seam. The operation is carried out on the side, resulting in low work efficiency, waste of time, and high labor intensity for workers

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