Propelling type well drill

Abstract

The invention provides a propelling type well drill. The well drill comprises a machine frame, a slag discharging device, a propelling device and a drilling device, wherein the drilling device is usedfor drilling a borehole in the ground; guide rails are arranged on the two sides of the machine frame separately, and the two guide rails are parallel to each other; the drilling device comprises a bearing table, a shaft tube, a rocker arm, a soil loosening cover and a slag discharging box; the bearing table is arranged between the two guide rails, can slide along the guide rails and can slide out of the guide rails; the top of the bearing table is connected to the slag discharging box in an abutting mode; the center of the bottom of the bearing table is provided with a through hole which penetrates through the bearing table in the vertical direction; one end of the shaft tube is inserted into the through hole to be connected to the bearing table in a rotating mode and is communicated with the slag discharging box; the other opposite end of the shaft tube is perpendicularly connected to the rocker arm; the bottom of the soil loosening cover is provided with an opening; a reamer shaftwhich is horizontally arranged is arranged in the soil loosening cover; and the reamer shaft can rotate around the axis of the reamer shaft in the soil loosening cover. According to the propelling type well drill, drilling can be conveniently carried out on a recharge well with a rectangular cross section.

Description

technical field [0001] The invention relates to the field of drilling equipment, in particular to a pusher drilling machine. Background technique [0002] Hot springs are the most common geothermal application. When using hot springs, in order to avoid thermal and chemical pollution caused by direct discharge of hot spring tail water, and to maintain heat storage pressure, it is necessary to recharge hot spring tail water. That is to use the recharge pipe to guide the geothermal tail water into the recharge well to achieve the purpose of tail water recharge. Due to the different geological environment of the hot spring mining area, the structure of the reinjection well is different. Due to the geological reasons of the hot spring mining area, sometimes it is necessary to drill a reinjection well with a circular cross section, and sometimes a rectangular reinjection well with a cross section. Existing drilling machines cannot drill reinjection wells whose cross section is r...

AI Technical Summary

Problems solved by technology

Reinjection wells with a rectangular cross-section cannot be drilled with existing drilling rigs

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