Coal mine downhole crawler type drilling and
punching integrated equipment comprises a crawler type hydraulic drilling
machine, a high-pressure-resistant sealing
drill stem, a drilling and
punching dual-purpose
drill bit, a high-pressure rotation connector and a high-pressure water pump
station, wherein the body of the high-pressure-resistant sealing
drill stem penetrates and is fixed in the power head inner hole of the crawler type hydraulic drilling
machine, a power head provides rotation speed and torque to the body of the high-pressure-resistant sealing drill stem, one end of the high-pressure-resistant sealing drill stem is connected with the high-pressure water pump
station through the high-pressure rotation connector, the high-pressure water pump
station provides high-pressure water needed by
punching, the other end of the high-pressure-resistant sealing drill stem is connected with the drilling and punching dual-purpose
drill bit, and hydraulic operations can be performed after drilling without replacing the
drill bit. The
coal mine downhole crawler type drilling and punching integrated equipment has the advantages that streamlined operations of
coal mine downhole
gas pressure relief, drilling and punching can be completed by the equipment, safe and efficient production of outburst mines is guaranteed,
coal seam coal and gas outburst danger is eliminated, a regional pre-drainage gas drilling construction period is shortened, coal seam drilling and punching and gas extraction efficiency are increased, and gas disaster prevention and control cost is reduced.