Drilling device for coal mine underground gas extraction

Abstract

The invention provides a drilling device for coal mine underground gas extraction. The drilling device comprises a drilling vehicle frame, a drilling vehicle crawler belt, a lug plate, an installationseat, a support column, a top installation plate, a telescopic mud collection frame structure, a mud cleaning frame structure, a moving pipe, a sliding installation plate, a drilling motor, a rotarydrill rod, a drill bit, an installation groove, an adjusting cylinder, a cockpit, a mud filtering settling box structure, a connecting hose, a hydraulic cylinder, a hydraulic pump station and oil inlet and outlet pipe. The drilling device has the beneficial effects that due to the arrangement of a collecting cover and a mud outlet pipe, when the equipment is used for drilling, the collecting coveris attached to the lower part of a rock wall and positioned at the drilling position, and mud flows downwards into the inner side of the collecting cover along the drilling position and is dischargedthrough the mud outlet pipe, so that the mud is collected and guided, the problem that mud falls down to the outer side of the equipment, and workers cannot clean the equipment conveniently is prevented, and the equipment cleaning effect is improved.

Description

technical field [0001] The invention belongs to the technical field of coal mining equipment, in particular to a drilling device used for underground gas extraction in coal mines. Background technique [0002] In geological exploration work, a cylindrical hole with a smaller diameter and a larger depth is drilled into the ground by drilling equipment, also known as drilling. Drilling holes for oil and gas and groundwater are larger in diameter. The diameter and depth of the borehole depend on the depth of burial of geological minerals and the purpose of the borehole. [0003] However, the existing drilling device for underground gas extraction in coal mines also has the problems of inconvenient collection of mud generated during drilling, excessive shaking when the drill pipe rotates, and inconvenient disposal of the outflowing mud. [0004] Therefore, it is very necessary to invent a drilling device for gas drainage in coal mines. SUMMARY OF THE INVENTION [0005] In o...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above-mentioned technical problems, the present invention provides a drilling device for underground gas drainage in coal mines, so as to solve the problem that the existing drilling devices for underground gas drainage in coal mines are inconvenient to collect and drill the mud generated during drilling. When the rod rotates, the shaking range is too large and the mud flowing out is inconvenient to handle.

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