High-stability drilling equipment for water disaster discharge in coal mining area
The invention relates to the technical field of drilling equipment, in particular to high-stability drilling equipment for water disaster discharge in coal mining areas, which comprises a drill rod, a drill bit and a quick connector, a plurality of tooth grooves are formed in the outer wall of the d...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention relates to the technical field of drilling equipment, in particular to high-stability drilling equipment for water disaster discharge in coal mining areas, which comprises a drill rod, a drill bit and a quick connector, a plurality of tooth grooves are formed in the outer wall of the drill rod, the drill bit is mounted at the head of the drill rod, and the quick connector is mounted at the tail of the drill rod. A plurality of cambered plates are arranged around the drill rod, two extrusion wheels are rotationally arranged in the cambered plates, and teeth are arranged on the outer walls of the circumferences of the extrusion wheels; drilling work is carried out through the structures of the drill rods, the cambered plates and the extrusion wheels, the influence of the drilling vibration phenomenon of the drill rods on the conveying motor can be reduced, meanwhile, the rotating torque of the conveying motor can be conveniently converted into the propelling force of the drill rods, the service li |
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