Chuck structure for drill pipe and drill pipe

A drill pipe and chuck technology, applied in drill pipe, drill pipe, drilling equipment and other directions, can solve the problems of large size and complex structure of drill pipe

Inactive Publication Date: 2019-08-20
周兆弟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, through the cooperation of sprockets, wire ropes and telescopic hydraulic motors, the drill rod can be stretched and retracted. However, this type of driving structure is installed in the drill rod, and the size of the drill rod should be designed larger. On the other hand, this type of Drive structure, its overall structure is relatively complex

Method used

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  • Chuck structure for drill pipe and drill pipe
  • Chuck structure for drill pipe and drill pipe
  • Chuck structure for drill pipe and drill pipe

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Embodiment Construction

[0024] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...

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Abstract

The invention relates to the technical field of drill pipes, and relates to a chuck structure for a drill pipe and the drill pipe. Telescopic control of multiple sections of the drill pipes can be conveniently achieved through a telescopic driving mechanism, particularly, when the chuck structure for the drill pipe is used in the drill pipe, a driving device moves to drive a first supporting arm structure and a second supporting arm structure to be opened towards the inner wall of the drill pipe, a first supporting arm and a second supporting arm can closely jack the inner wall of the drill pipe, and therefore the drill pipe can be pushed to rise or fall. Compared with the prior art, the drill pipe has the above advantages.

Description

technical field [0001] The invention relates to the technical field of drill pipes, in particular to a chuck structure for drill pipes and the drill pipe. Background technique [0002] Even if the large pile driver used on the construction site does not include the drill pipe that goes deep into the ground, the erection height will be more than 30 to 50 meters. As the drilling soil goes deeper, the length of the drill pipe needs to be extended. Generally speaking, the pile driver is equipped with multi-stage retractable drill pipes. When the pile driver is working, the inner drill pipes are stretched out one by one to carry out the operation; section retracted. [0003] At present, the internal drive structure of each section of drill pipe is driven by the internal drive structure of the truck crane to drive the inner drill pipe to extend. For the specific drive structure, refer to the patent document with the patent No. 200420030670.X, which discloses a square tube-shaped...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B17/00E21B19/086
CPCE21B17/00E21B19/086
Inventor 周兆弟
Owner 周兆弟
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