Twist drill pipe

A technology of twist drill pipe and twist rod, applied in drill pipe, drill pipe, drilling equipment and other directions, can solve the problems of thread damage and influence of drill pipe, and achieve the effect of reducing thread damage

Active Publication Date: 2019-06-14
ZOUCHENG YANKUANG TAIDE IND & TRADE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In coal mining, as the drilling depth increases, the drill pipe needs to be lengthened one by one. Traditionally, the drill pipes are generally connected by threads when they are connected, and the drill pipes are also in the process of rotation. The torque is transmitted through the connection between the drill pipes, which is easy to have a destructive effect on the threads between the drill pipes

Method used

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Embodiment Construction

[0018] In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, not all the embodiments. The components of the embodiments of the present invention generally described and illustrated in the drawings herein may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinar...

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Abstract

The invention discloses a twist drill rod which comprises a twist rod body. A connecting column is arranged at one end of the twist rod body, a connecting hole is formed in the other end of the twistrod body, the connecting column is provided with an external thread, the connecting hole is internally provided with an internal thread matched with the external thread on the connecting column, a torque transmission assembly is arranged in the connecting hole, the torque transmission assembly comprises an inner screw and a connecting sleeve pipe, and the connecting sleeve pipe sleeves the inner screw and is connected with the inner screw through the treads. A first plane clamping tooth is arranged at the end of the connecting sleeve pipe, a blind hole corresponding to the connecting sleeve pipe is arranged on the middle part of the connecting column, and a second plane clamping tooth corresponding to the first plane clamping tooth is arranged at the bottom of the blind hole. When the drill rod is driven, torque force between the connecting hole and the connecting column can be shared between the inner screw and the connecting sleeve pipe as well as between the first plane clamping tooth and the second plane clamping tooth, and the damage of the torque force to the threads between the connecting hole and the connecting column can be reduced.

Description

Technical field [0001] The invention relates to the technical field of coal mining drill pipes, in particular to a twist drill pipe. Background technique [0002] In coal mining, as the drilling depth increases, the drill pipe needs to be lengthened section by section. Traditionally, the drill pipe is usually connected by thread when connecting, and the drill pipe is also in the process of rotating. Torque is transmitted through the connection between the drill rods, which easily has a destructive effect on the threads between the drill rods. Summary of the invention [0003] The technical problem to be solved by the present invention is to provide a twist drill rod which avoids damage to the connection when rotating. [0004] In order to solve the above problems, the present invention includes a twisted rod body, one end of the twisted rod body is provided with a connecting post, the other end of the twisted rod body is provided with a connecting hole, the connecting post is provi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B17/22E21B17/042
Inventor 张安国许林郝建平胡令新王保勤朱文峰
Owner ZOUCHENG YANKUANG TAIDE IND & TRADE CO LTD
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