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Clamping and unscrewing device for iron driller

An iron driller and clamping technology, which is applied in the field of iron driller clamping and unscrewing devices, can solve the problems of complex structure, unstable floating and rotation, and large damage to drill pipes, and achieves good interchangeability and unscrewing movement. Independent, less damage to drill pipe

Inactive Publication Date: 2013-06-05
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing iron driller clamping and unscrewing device has a complex structure. When unscrewing the drill pipe, the floating and rotation of the shackle mechanism on the clamping tong mechanism is not stable, and the drill pipe is greatly damaged.

Method used

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  • Clamping and unscrewing device for iron driller
  • Clamping and unscrewing device for iron driller
  • Clamping and unscrewing device for iron driller

Examples

Experimental program
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Embodiment Construction

[0022] see Figure 1 to Figure 7 As shown, the present embodiment is made up of support 1, lifting cylinder 2, vertical pin 3, shackle pliers mechanism 4, clamping pliers mechanism 5, tong box 6 and stack spring 7; wherein, support 1 and end hinge shaft type The lifting cylinder 2 is hinged, the piston rod of the lifting cylinder 2 is hinged with the clamp box 6, and the lifting cylinder 2 is symmetrically arranged; the clamp box 6 is fixedly connected with the clamping pliers mechanism 5, so that the pliers body moves with the lifting cylinder; the shackle clamp mechanism 4 and A stack spring 7 is installed between the clamping pliers mechanism 5 to ensure that the shackle pliers float smoothly when the drill pipe is unscrewed; the vertical pin 3 passes through the shackle pliers mechanism 4 and the clamping pliers mechanism 5, The two ends are fixedly connected with the bracket 1, and can play a guiding role when lifting and unscrewing the drill pipe.

[0023] The symmetric...

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PUM

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Abstract

The invention discloses a clamping and unscrewing device for an iron driller of oil drilling machine. The clamping and unscrewing device capable of clamping and unscrewing a drill stem comprises a support, lifting cylinder, a vertical pin, an unscrewing tongs mechanism, a clamping tongs mechanism, a tongs box and a laminated spring. The unscrewing tongs mechanism and the clamping tongs mechanism are capable of floating through the laminated spring; the vertical pin penetrates through the unscrewing tongs mechanism and the clamping tongs mechanism to be connected with the support so as to achieve the guiding function; a lifting mechanism is formed by the lifting cylinder, the vertical pin and the tongs box; unscrewing tongs and clamping tongs are driven by the lifting mechanism so as to be aligned with connection heads of the drill stem; and the clamping tongs mechanism is capable of achieving the function of clamping the lower drill stem and the unscrewing tongs mechanism is capable of achieving the function of clamping the upper drill stem and then unscrewing the drill stem. The clamping and unscrewing device for the iron driller is simple in structure, convenient to use, stable in operation with little damage to the drill stem, good in parts interchangeability, low in production cost, large in output torque, wide in suitable range for the drill stem, and easy to maintenance owing to the basic separation of lifting, clamping and unscrewing.

Description

technical field [0001] The invention relates to wellhead automation equipment in the petroleum drilling industry, in particular to a clamping and unscrewing device for iron drillers. Background technique [0002] The iron driller is a kind of wellhead automation equipment. The main function of the clamping and unscrewing device in this equipment is: the lifting mechanism must quickly, smoothly and accurately align the shackle and clamping tongs with the drill pipe joint. The clamp mechanism should clamp the drill pipe stably and reliably. The shackle mechanism should complete the action of unscrewing and unloading the drill pipe smoothly and reliably. The existing iron driller's clamping and unscrewing device has a complicated structure. When the drill pipe is unscrewed, the floating and rotation of the shackle mechanism on the clamping tong mechanism are not stable, which causes great damage to the drill pipe. Contents of the invention [0003] The purpose of the presen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B19/18
Inventor 孙友宏吕兰沙永柏王清岩廖玉华占自涛
Owner JILIN UNIV
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