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Hydraulic drill pipe steering mechanism

A steering mechanism and hydraulic technology, which is applied in directional drilling, earthwork drilling, drilling equipment, etc., can solve the problems of difficult to meet the complex and diverse needs of drilling operations, lack of drill bit steering and drilling, etc., so as to facilitate the use of drilling construction , ingenious design and simple structure of the steering mechanism

Active Publication Date: 2022-06-28
BEIJING CHINA COAL MINE ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In actual engineering drilling operations, the drilling holes are all straight holes, and the drilling rods are rigid rods, which are drilled in straight lines or long-radius curves. There is no structure that can accurately control the steering of the drill bit, resulting in the inability to Drilling with a small radius of curvature as required is difficult to meet the complex and diverse needs of actual drilling operations

Method used

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  • Hydraulic drill pipe steering mechanism
  • Hydraulic drill pipe steering mechanism
  • Hydraulic drill pipe steering mechanism

Examples

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Embodiment Construction

[0017] see figure 1 , a hydraulic drill pipe steering mechanism, including a bending steering assembly and a driving assembly, the driving assembly is fixedly connected in the bending steering assembly, and the bending steering assembly includes a first steering cylinder 1, a second steering cylinder 2 and a connecting cylinder 3. The first steering cylinder 1, the second steering cylinder 2 and the connecting cylinder 3 are all cylindrical in shape, the first steering cylinder 1, the second steering cylinder 2 and the connecting cylinder The first end face of 3 is fixedly connected with a hinge seat, and the second end faces of the first steering cylinder 1, the second steering cylinder 2 and the connecting cylinder 3 are fixedly connected with hinge ears 6; The hinge ear 6 at the second end of the first steering cylinder 1 is hinged with the hinge seat at the first end of the connecting cylinder 3 through a pin shaft, and the hinge lug 6 at the second end of the connecting c...

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Abstract

The invention discloses a hydraulic drill pipe steering mechanism, which includes a bending steering assembly and a driving assembly, the driving assembly is fixedly connected in the bending steering assembly, one side of the bending steering assembly is a hinged side, and the bending steering assembly is movable The side opposite to the hinged side is the steering power input side, and the power output end of the drive assembly is in transmission connection with the steering power input side of the bending steering assembly. In the present invention, by setting the bending steering assembly, the bending can be realized under the mutual cooperation of the steering channel and the connecting cylinder. Compared with the traditional rigid drill pipe drilling, the bending drilling can be directly realized, with high flexibility and small curvature Radius drilling to meet complex drilling needs; by setting up a double-rod hydraulic cylinder, driven by the double-rod hydraulic cylinder, the steering cylinder at both ends of the double-rod hydraulic cylinder can be driven to rotate around the hinge lugs to realize bending steering.

Description

technical field [0001] The invention relates to the technical field of engineering drilling. Specifically, it is a hydraulic drill pipe steering mechanism. Background technique [0002] In actual engineering drilling operations, the drill holes are all straight holes, and the drill rods are rigid rods. They are all drilled in a straight line or a long radius curve. The lack of a structure that can accurately control the steering of the drill bit makes it impossible to drill. Drilling with a small radius of curvature is difficult to meet the complex and diverse needs of actual drilling operations. SUMMARY OF THE INVENTION [0003] Therefore, the technical problem to be solved by the present invention is to provide a hydraulic drill pipe steering mechanism that can control the direction and can perform steering with a small radius of curvature. [0004] In order to solve the above technical problems, the present invention provides the following technical solution: a hydrau...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B7/06
CPCE21B7/06E21B7/067
Inventor 张广宇王强李方政宁方波韩玉福张云利
Owner BEIJING CHINA COAL MINE ENG CO LTD