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A centering device and method with auxiliary shackle function

A functional and shackle oil cylinder technology, which is applied in earth-moving drilling, drilling pipe, casing, etc., can solve the problems of low success rate of reverse shackle of power head, high labor intensity of manual assistance, large volume and weight of shackles, etc. , to shorten the auxiliary time of shackle, reduce the structure size and weight, and improve the efficiency of shackle

Active Publication Date: 2022-07-19
XIAN RES INST OF CHINA COAL TECH& ENG GROUP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the defects and deficiencies in the prior art, the present invention provides a righting device and method with auxiliary shackle function to solve the problem of low success rate of reverse shackle of the power head in the prior art, high labor intensity of manual assistance, and manipulation The process is dangerous, the shackle has a large volume and weight, and the shackle efficiency is low

Method used

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  • A centering device and method with auxiliary shackle function
  • A centering device and method with auxiliary shackle function
  • A centering device and method with auxiliary shackle function

Examples

Experimental program
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Embodiment 1

[0040] like Figure 1 to Figure 7 As shown in the figure, this embodiment provides a centralizing device with an auxiliary shackle function, including a mounting seat 1, a centralizing and clamping unit 2 arranged between two side plates of the mounting seat 1, and a centralizing and clamping unit 2 vertically arranged on the centralizing and clamping unit 2 Shackle cylinder 3 and cylinder support 4 on one side.

[0041]The centralizing and clamping unit 2 includes a first inner bushing 21, a clamping bushing 22, a second inner bushing 23 and a plurality of rollers 24 that are coaxially installed; the inner wall of the second inner bushing 23 is provided with an annular boss, A plurality of arc-shaped plates 231 are arranged on the annular boss, and the plurality of arc-shaped plates 231 are arranged at intervals in the circumferential direction. 21 can be fixedly connected with the end of the arc-shaped plate 231; each roller 24 is located between the adjacent arc-shaped pla...

Embodiment 2

[0055] This embodiment provides a centering and auxiliary shackle method for a centering device with an auxiliary shackle function. Image 6 and Figure 7 As shown in the figure, when the power head rotates forwardly, the drill pipe rotates between the rollers, and the multiple rollers play a role in righting the drill pipe; when the power head is reversed to shackle, the shackle cylinder is extended, and the clamping sleeve is reversed. Rotate clockwise, the inner plane of the clamping sleeve presses its corresponding roller, the roller clamps the drill rod, and the clamping sleeve continues to rotate counterclockwise to provide additional reverse torque for the drill pipe, and the auxiliary power head completes the unloading. When the drill pipe screw is released, the drill pipe is reversed, the roller automatically releases the drill pipe, and when the shackle cylinder is retracted, it automatically drives the centering device to reset. The method of the present invention ...

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Abstract

The invention discloses a centering device and method with an auxiliary shackle function, comprising a mounting seat, a centering and clamping unit, a shackle oil cylinder and an oil cylinder support. The tightening unit includes a first inner shaft sleeve, a clamping shaft sleeve, a second inner shaft sleeve and a plurality of rollers; the second inner shaft sleeve is provided with a plurality of arc-shaped plates that can be fixedly connected with the first inner shaft sleeve, and the arc-shaped The plates are arranged at intervals in the circumferential direction, and rollers are arranged between adjacent arc-shaped plates to be able to centralize or clamp the drill rod; the clamping sleeve is sleeved outside the roller and the arc-shaped plate, and the inner wall of the clamping sleeve is provided with a plurality of circumferential It protrudes to the plane that is laid out and corresponds to the roller one-to-one; the expansion and contraction of the shackle cylinder can drive the clamping sleeve to rotate, so that the plane protrusion squeezes the roller to radially gather, so as to clamp the drill rod and provide reverse torque to realize the shackle. After the shackle, the drill pipe is reversed, the rollers loosen the drill pipe, and the shackle cylinder retracts and returns to its original position. In the invention, both the clamping and the loosening of the drill rod are automatically realized, the operation is simple, and the shattering efficiency is improved.

Description

technical field [0001] The invention belongs to the field of drilling equipment, and in particular relates to a righting device and method with an auxiliary shackle function. Background technique [0002] During the drilling process, frequent tightening and tightening of the drill pipe thread is required, especially when the drilling is deep, to complete one trip, hundreds of times of loosening are required alternately. The loosening method and auxiliary time of the drilling rig directly affect the tripping efficiency. At present, there are two main ways to release the common shackle, namely, the power head reversal shackle and the shackle shackle. [0003] The power head reversing shackle method is mostly used on drilling rigs with gripper linkage function. The operation steps are that the power head lifts the drill pipe, reverses the shackle, removes and loosens the drill pipe and enters the next cycle. This process is simple to operate and has high drilling efficiency. H...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B19/16E21B17/10
CPCE21B19/161E21B17/1057
Inventor 鲁飞飞凡东常江华邹祖杰张阳刘祺王瑞泽王振亚
Owner XIAN RES INST OF CHINA COAL TECH& ENG GROUP CORP