Full hydraulic drilling type coal mining machine for thin coal seam with large mining width
A thin coal seam, fully hydraulic technology, applied in the direction of cutting machinery, earth square drilling, etc., can solve the problems of easy drilling blockage, limited mining width, rapid accumulation of gas and coal dust, etc., to increase the mining width and reduce the coal pillar , a wide range of effects
Inactive Publication Date: 2013-05-08
CHINA UNIV OF MINING & TECH
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[0003] Purpose of the invention: the purpose of the present invention is to provide a fully hydraulic drilling shearer with large mining width and thin coal seam, to overcome the limited mining width, easy drilling blockage, gas and coal dust that are common in existing drilling shearers. disadvantages of poly
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[0015] The present invention will be further explained below in conjunction with the drawings.
[0016] Such as Figure 1 to 3 As shown, the full hydraulic drilling shearer for large mining width and thin coal seams of the present invention includes an electric control assembly 1, a hydraulic assembly 2, a main engine 3, a drilling tool assembly 4 and a ventilation device 5.
[0017] The host 3 includes a frame, the frame includes a left frame 31, a right frame 32, a middle frame 33, and a drive frame 34. The two sides of the middle frame 33 are respectively connected to the left frame 31 and the right frame 32 by bolts, and the drive frame 34 The intermediate frame 33 is connected by two parallel guide shafts 35. The left hydraulic motor 36, the middle hydraulic motor 37 and the right hydraulic motor 38 are fixed side by side at the tail end of the drive frame 34. The power input ends of the left hydraulic motor 36, the middle hydraulic motor 37 and the right hydraulic motor 38 a...
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The invention discloses a full hydraulic drilling type coal mining machine for a thin coal seam with large mining width. The full hydraulic drilling type coal mining machine comprises an electronic control assembly, a hydraulic assembly, a host machine, a drilling tool assembly and a ventilating device, wherein a left hydraulic motor, a middle hydraulic motor and a right hydraulic motor are arranged at the tail end of a rack of the host machine in parallel; the drilling tool assembly comprises a left gear box, a middle gear box and a right gear box, which are arranged at the front end of the rack in parallel; two output shafts are respectively arranged on the left gear box and the right gear box; an output shaft is arranged on the middle gear box; the input shafts of the left gear box, the middle gear box and the right gear box are respectively connected with the output shafts of the left hydraulic motor, the middle hydraulic motor and the right hydraulic motor through a left-hand drill rod, a middle drill rod and a right-hand drill rod; and the ventilating device comprises an air inlet barrel and an air return barrel. The machine solves the defects of the existing drilling type coal mining machine that the mining width is limited, the drilling is easily blocked and gas and coal dust are easily gathered rapidly.
Description
Technical field [0001] The invention relates to a coal mining machine, in particular to a full-hydraulic drilling coal mining machine for large mining width and thin coal seams suitable for the mining of unmanned working faces in thin and extremely thin coal seams. Background technique [0002] At present, the mining methods for thin and extremely thin coal seams are mainly divided into three types according to the different coal mining equipment: coal plough mining method, drum shearer mining method and drilling coal mining method. The coal plough method is mainly suitable for coal seams with a thickness of 0.9-1.5m, simple geological structure, and relatively stable roof and floor. Due to the complicated geological conditions of my country's thin and ultra-thin coal seams, this method has not been effectively promoted in my country. Drum shearer mining method has higher coal mining efficiency and strong adaptability to coal seams. However, this method puts forward higher requ...
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IPC IPC(8): E21C25/66
Inventor 李建平杜长龙程舒燕鲍建伟王愁
Owner CHINA UNIV OF MINING & TECH