High-strength drill bit tool for drilling pipeline

Abstract

A high-strength drill bit tool for drilling a pipeline comprises an upper frame, a positioning sleeve, an inner frame rod, a lower frame, a fixing bolt, an outer sleeve, a connecting bolt and a drillbit, wherein the positioning sleeve is arranged in the upper frame and is fixed to the upper frame through the inner frame rod; the positioning sleeve comprises an outer cylinder, a top plate, a rotating roller, a spring and a sleeve bearing; the lower frame is arranged on the bottom surface of the upper frame, and the upper frame is connected with the lower frame through a fixing bolt; the lowersleeve is arranged at the bottom end of the positioning sleeve, the outer sleeve comprises a lower sleeve, a connecting block, a sleeve lug and a supporting block; the drill bit is rotatably connectedwith the positioning sleeve; and the bottom end of the drill bit extends into the outer sleeve. The drill bit is accurate in positioning, the service life is prolonged, and the safety performance ofthe device is high.

Description

Technical field [0001] The invention relates to the field of drill bits and auxiliary equipment, in particular to a high-strength drill bit tooling used for pipe drilling. Background technique [0002] Aiming at the technology of opening holes on the pipe wall, a special chain pipe hole opener is usually used to open holes. It has many advantages such as suitable for a variety of pipe diameters and high bearing pressure, but it also has many shortcomings, such as its motor The structure and the drill support structure are integrated, and the structure is cumbersome and inconvenient to carry. At the same time, the existing technology in the market also proposes some drill bits and drill tooling suitable for pipe drilling. However, in the prior art, the The tooling form is complex, and the drill bit is positioned through a complex mechanical structure; the drill bit is in rigid contact with the pipe during the pipe drilling process, and the uneven force on the arc surface of the pi...

AI Technical Summary

Problems solved by technology

[0002] Aiming at the technology of opening holes on the pipe wall, usually a special chain pipe hole opener is used to open holes, which has many advantages such as being suitable for various pipe diameters and high bearing pressure, but at the same time has many disadvantages, such as its motor The structure and the drill bit support structure are integrated structures, and the structure is heavy and inconvenient to carry. At the same time, the prior art in the market also proposes some drill bits and drill tooling suitable for pipeline drilling. However, in the prior art, the drill bit The form of tooling is complex, and the positioning of the drill bit is realized through a complex mechanical structure; the drill bit is in rigid contact with the pipeline during the drilling of the pipeline, and it is easy to cause damage to the drill bit when the force on the arc surface of the pipeline is uneven; at the same time, due to the cutting of the drill bit The center is a circular arc surface, the side of the drill bit is easy to splash high-temperature iron filings sparks around, causing damage to the driller, and there is no splash-proof structure at the drill bit for protection

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