Coal mining and digging machine

Abstract

The invention belongs to coal mining machinery, in particular to a coal mining planer with few power sources, simple structure, wide application range and high production efficiency. , speed reducer (25), hydraulic system motor (27), hydraulic pump station (29), oil cylinder (30), planer head (19) and planer (20), two fixed on the output shaft of speed reducer (25) A driving sprocket (26), is connected with the driven sprocket (23) transmission that is fixed on two driving shafts (18) with two transmission chains (35), and the driving shaft (18) outer end is fixed on a circle evenly Traction wheels (16) with several U-shaped grooves (16-1) are distributed; transmission crawlers (17) are movable between the two traction wheels (16); the coal mining planer is simple in structure and light in weight. Low cost; save energy consumption; low failure rate, high start-up rate, simple maintenance, small maintenance and low cost.

Description

technical field [0001] The invention belongs to coal mining machinery, in particular to a coal mining planer with few power sources, simple structure, wide application range and high production efficiency. Background technique [0002] In my country, coal is still the main energy source at present, and coal mining machinery plays a vital role in coal mining. In various countries in the world, the most widely used coal shearers are drum shearers and coal plows. The drum shearer is suitable for medium-thick and thick coal seams. When the coal seam is a thin coal seam below 1.5m, the drum shearer is not competent; moreover, the drum and the shearer need five sets of power sources at the same time, and the total installed power is very high. High energy consumption; large cut-off depth of the drum, unable to make full use of the compressive effect of the coal seam, high energy consumption, large crushing of coal, and a lot of dust, which brings hidden dangers to safety; in addi...

AI Technical Summary

Problems solved by technology

The drum shearer is suitable for medium-thick and thick coal seams. When the coal seam is a thin coal seam below 1.5m, the drum shearer is not competent; moreover, the drum and the shearer need five sets of power sources at the same time, and the total installed power is very high. High energy consumption; large cut-off depth of the drum, unable to make full use of the compressive effect of the coal seam, high energy consumption, large crushing of coal, and a lot of dust, which brings hidden dangers to safety; in addition, the structure of the drum shearer is complex and difficult to maintain ,expensive

The most widely used plow is the sliding plow, which has good adaptability to medium-thick and thin coal seams and coal seams below medium-hard; its shortcoming is that about 40% of the total power is consumed in the plow head and coal seam. The friction in the chain sliding is not used to cut coal; and the thickness of the mined coal seam is limited, and the adjustment range is limited

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