Five-drill air inlet and outlet type coal mining machine
A wind-in and out-flow, five-bit technology, which is applied in the direction of drill bits, earth square drilling, mechanical equipment, etc., can solve the problem of low cutting efficiency of three-bit drilling shearers, low adaptability to gas-containing coal seam mining, and limitations of shearer drilling. In order to improve the recovery rate of coal resources, reduce the energy consumption of mining, and achieve the effect of extensive practicability
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[0012] An embodiment of the present invention will be further described below in conjunction with accompanying drawing:
[0013] Such as figure 1 , figure 2 As shown, the air drilling shearer with five drill bits in and out of the present invention is mainly composed of a bracket 1, a first hydraulic motor 2, a ventilator 3, a hydraulic propulsion cylinder 4, a height adjustment device 5, a lateral transmission drill rod 6, and a blower fan 7. Planetary mechanism 8, bevel gear transmission box 9, short auger bit 10, long auger bit 11, exhaust fan 12, left ventilation drill rod 13, moving frame 14, bearing seat 15, coupling 16, second hydraulic motor 17 , the middle transmission drill rod 18 and the right ventilation drill rod 19 constitute. The lower part of the bracket 1 is provided with a height-adjusting device 5, and the height-adjusting device 5 realizes the height adjustment of the bracket 1 through a hydraulic cylinder. The bracket 1 is provided with a mobile ...
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