A direction-changing drill pipe power transmission device

Abstract

The invention discloses a power transferring device of a turning drilling rod. The power transferring device is characterized by comprising a drilling rod channel, an assembly type drilling rod and a transmission mechanism, wherein the drilling rod channel comprises a vertical straight tube which is used as an inlet tube of the drilling rod and a straight tube which is used as a guide rail in a preset direction, and the vertical straight tube is in smooth transition connection with the guide rail through an arc track so as to form the turning and penetrating drilling rod channel; the vertical straight tube can rotate, and driving force is supplied to the vertical straight tube by a motor; the assembly type drilling rod is in threaded connection between adjacent drilling rod sections; transmission gears are distributed in arrays on the outer circumferential surfaces of the drilling rod sections, and driving force is supplied to the transmission gears by utilizing the transmission mechanism. According to the power transferring device, the drilling direction of the drilling rod is changed at a large angle, turning transmission of the drilling rod is realized, and the problem of bypassing obstacles in the drilling process of the drilling rod can be effectively solved.

Description

technical field [0001] The invention relates to a direction-changing drill pipe drilling and grouting pipeline device, more specifically a power transmission device for a direction-changing drill pipe. Background technique [0002] Drilling and grouting technology is a commonly used technology in civil engineering and geotechnical engineering, which can be applied to foundation construction and foundation reinforcement. [0003] At present, grouting technology is mainly used in foundation pit support, seepage prevention and plugging, and foundation reinforcement in geotechnical engineering. The grouting method is to inject curable grout into cracks or pores in rock foundations to improve its Construction methods of physical and mechanical properties. In recent years, the grouting method represented by polymer grouting technology has been widely used in the field of road and construction engineering. The key steps in the construction process are drilling and grouting. The gr...

AI Technical Summary

Problems solved by technology

It can be seen that the current drilling and grouting technology has the following deficiencies: First, the drill pipe and grouting pipe of the polymer grouting technology are long straight pipes, which cannot bypass the existing road foundation at a certain depth underground at a certain angle. and building foundation etc. to change direction, also can not realize the drill pipe and grouting pipe to change direction drilling grouting; the second is in the reinforcement method of building foundation, usually the diameter of grouting pipe is 25mm, and the inclination angle with the horizontal plane is not the same. If it is less than 30°, it is impossible to complete drilling and grouting at any depth; third, although the horizontal directional drilling machine has realized the turning and changing direction of the drilling, its drilling arc is limited and the radius of curvature is very large. At the same time, the deeper the drilling, the deeper the radius of curvature In addition, the specified entry and exit angle, curvature radius, drill pipe material strength and geological conditions are limited, so it cannot be used for deep underground drilling, otherwise the construction will be extremely difficult

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