Cable suspending type air partial reverse circulating motor mechanical core bit
A reverse-circulation, suspended technology, applied in drilling equipment, earthwork drilling, extraction of undisturbed core devices, etc., to achieve the effects of ingenious design, pollution avoidance, and low energy consumption
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[0038] The armoured cable 1 is controlled to retract and retract by the winch, thereby lifting and lowering the drilling tool. When the drilling tool is lowered to a certain depth, the motor 6 in the drilling tool starts to work, and the motor 6 reduces the rotation speed of the drilling tool to a reasonable value through a transmission 7 , Rotate and cut the ice layer; due to the high speed of the vacuum pump 8, it is necessary to increase the speed of the motor 6 to a certain value through another transmission 7, and the high-speed rotation generates negative pressure, forms an air flow, sucks ice chips, and cools the drill bit. During the drilling process, the airflow generated by the rotation of the vacuum pump 8 enters the ice core tube 11 from the nozzle of the drill bit, passes through the ice chamber 10 and flows into the vacuum pump 8, and then shoots from the outlet of the vacuum pump 8 to the hole between the hole wall and the drilling tool at a high...
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