Armored cable type electric mechanical impact rotary drilling tool for polar drilling

Abstract

The invention discloses an armored cable type electric mechanical impact rotary drilling tool for polar drilling. The armored cable type electric mechanical impact rotary drilling tool for polar drilling comprises a rock cuttings chamber, a water pump, a driving motor, a variable speed system, a mechanical impact system and a drill bit; the rock cuttings chamber is formed in the upper part of thewater pump, a liquid outlet of the rock cuttings chamber is in communication with a liquid inlet of the water pump, the driving motor is arranged on the lower part of the water pump, and the lower endof the driving motor is connected with the variable speed system, the water pump and the variable speed system are driven by the driving motor to work, the lower part of the variable speed system isconnected with the mechanical impact system, the variable speed system drives the mechanical impact system to work, the drill bit is assembled on the lower part of the mechanical impact system, and the drill bit is driven by the mechanical impact system to work. The armored cable type electric mechanical impact rotary drilling tool for polar drilling has the beneficial effects that on the basis ofrotary cutting of the drilling tool, impact drilling is added, and the risk of complex drilling accidents such as stuck drilling is reduced; and the drilling tool has the advantages of simple structure, reliable system, wide application range and high drilling efficiency, and can be used for drilling in various working conditions such as ice layers, ice rock interlayers and under-ice bedrock layers.

Description

Technical field [0001] The invention relates to an impact rotary drilling tool for polar drilling, in particular to an armored cable type electromechanical impact rotary drilling tool for polar drilling. Background technique [0002] At present, obtaining ice core and under-ice bedrock samples through polar drilling technology, or quickly acquiring boreholes through drilling technology and installing monitoring instruments in the holes, are important methods for studying the polar ice cap and under-ice geological environment. However, due to the severe weather and surface ice and snow environment, polar drilling is difficult and extremely complicated. At present, armored cable electric mechanical drilling tools are mainly used for coring or full drilling. However, limited by the power in the hole and the weight of the drilling tool itself, when drilling into icy rock interlayers, subglacial rock formations, etc., technical obstacles such as low drilling pressure, small torque, an...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the existing technical obstacles such as low drilling pressure and small torque of the rotary drilling tool used for polar drilling, and the drilling tool itself cannot provide enough power to break rocks, resulting in slower drilling speed, cuttings, etc. An armored cable electromechanical impact rotary drilling tool for polar drilling, which is difficult to effectively carry away from the bottom of the hole and is prone to complex accidents such as drill sticking

Images