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Clamp type hoisting mechanism

A tong-type and tong-rod technology, which is applied in drilling equipment, earth-moving drilling, drill pipe, etc., can solve the problems of single function and high requirements on drilling tool structure, and achieve the effect of simple and reliable process, less mutual restriction, and convenient and simple maintenance.

Inactive Publication Date: 2012-08-01
JIANGSU WUXI MINERAL EXPLORATION MASCH GENERAL FAB CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main function of the lifting mechanism is to realize the clamping and lifting of the drill pipe. The traditional lifting mechanism mostly adopts the snap ring type, climbing rod type and other structures, which have single functions and high requirements on the structure of the drilling tool.

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0028] The present invention will be further described below in conjunction with specific drawings and embodiments.

[0029] As shown in the figure: the clamp-type lifting mechanism in the embodiment is mainly composed of lifting ring body 1, lifting shaft 2, hexagonal grooved nut 3, washer 4, dust cover 5, first pin shaft 6, left pull rod 7, right Pull rod 8, second pin shaft 9, left clamp rod 10, right clamp rod 11, third pin shaft 12, left connecting plate 13, right connecting plate 14, right seat body 15, torsion spring 16, shaft 17, right block 18. Left seat body 19, left block 20, cotter pin 21, one-way thrust ball bearing 22, cotter pin 23, washer 24, small shaft 25, set screw with tapered end 26, stopper 27, pull pin 28 and cylinder Parts such as pin 29 are formed.

[0030] Such as Figure 1~Figure 3 As shown, the lifting ring body 1 is provided with a shaft hole, and the lifting shaft 2 is installed in the shaft hole. The upper end of the lifting shaft 2 is fitted w...

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PUM

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Abstract

The invention relates to a clamp type hoisting mechanism, which comprises a hoisting annular body, a hoisting shaft, a clamp mechanism, a left connecting plate, a right connecting plate, a hoisting seat, a stopper, a left clamping block and a right clamping block, wherein a shaft hole is formed on the hoisting annular body; the hoisting shaft is arranged in the shaft hole and can freely rotate; the clamp mechanism is suspended at the lower end of the hoisting shaft and is fixedly connected with the hoisting seat; and the hoisting seat is used for clamping a drill stem joint. By the clamp type hoisting mechanism, the drill stem joint can be clamped through left and right clamping blocks which can turn in a unidirectional mode; due to the adoption of a torsional spring for pressing and self-locking, the drill stem can be reliably clamped; the implementation process is simple and reliable, and the parts restrict one another slightly and are convenient and easy to maintain; and moreover, only a cylindrical pin is required to be screwed out in the process of detaching the drill stem.

Description

technical field [0001] The invention relates to a device for extracting drilling tools in the process of drilling construction, in particular to a device that relies on a freely rotatable clamp-type mechanism to suspend left and right clamping blocks that can be turned over in one direction to achieve clamping of drill pipe joints The utility model relates to a clamp-type lifting mechanism with high function, which belongs to the technical field of drilling rigs and drilling tools in engineering machinery. Background technique [0002] The working environment of the drilling rig is very harsh, and the parts and structures of all mechanisms should be simple, practical and reliable as the final design principles; it is required to be easy to install and disassemble, and easy to maintain. [0003] The main function of the lifting mechanism is to realize the clamping and lifting of the drill pipe. The traditional lifting mechanism mostly adopts structures such as snap rings and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B19/02
Inventor 朱利根
Owner JIANGSU WUXI MINERAL EXPLORATION MASCH GENERAL FAB CO LTD
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