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Wellhead lifting-clamping device

An elevator and jaw technology, applied in the field of wellhead elevator devices, can solve problems such as unfavorable safety production, and achieve the effects of simple structure, automatic lifting and lowering, and high production safety.

Inactive Publication Date: 2009-09-30
SHENYANG SIASUN ROBOT & AUTOMATION +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this kind of pneumatic elevator device needs an external air source, and the elevator and the air source also need to be connected with a long gas pipeline, which is not conducive to safe production

Method used

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  • Wellhead lifting-clamping device
  • Wellhead lifting-clamping device
  • Wellhead lifting-clamping device

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Embodiment Construction

[0023] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0024] like figure 2 , image 3 As shown, the present invention includes housing 9, two groups of push rods, claws 13 and positioning hooks 16, wherein two groups of push rods are four in total, two are one group, that is, two first push rods 10 are one group, Two second push rods 14 form a group; there are two claws 13, which are arranged symmetrically with the axis of the housing 9. The claws 13 are installed in the housing 9 through the first shaft 21, and the claws 13 can rotate around the first axis. 21 rotation, both ends of the first shaft 21 are provided with claw torsion spring 18, provide the initial position for the claw 13 and reset the claw 13 after rotation; each claw 13 is fixed with a claw slide Block 15, the claw slide block 15 is located at the middle part of the claw 13 near the upper side of the oil pipe (sucker rod) 7, one side of the ...

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Abstract

The invention relates to oilfield workover equipment, in particular to a wellhead lifting-clamping device used on an oilfield workover manipulator. The device comprises a shell, two sets of push rods, a claw and a positioning hook, wherein the claw which can be reset is hinged on the shell; a claw slider is arranged on the claw; the positioning hook which can be reset is hinged on the shell and is positioned above the claw slider; and the two sets of push rods are arranged on the shell outside the claw and the positioning hook respectively. The self of the device carries no power source and needs to be turned on and off through the cooperation of an elevator-unlocking device and an elevator-locking device outside, thereby greatly simplifying the structure of the lifting-clamping device, canceling a long gas pipe which is arranged on a pneumatic elevator and moves together with the elevator, reducing accident potential and helping to the safe production of oilfield. As the two sets of push rods are arranged on two sides, the elevator can be automatically unlocked and locked under the push of the elevator-unlocking device and the elevator-locking device outside. Through the fast replacement of claw clamp-heads with different specifications, the wellhead lifting-clamping device can lift up and put down oil pipes different in pipe diameter and oil-pumping rods different in size.

Description

technical field [0001] The invention relates to oil field workover operation equipment, in particular to a wellhead elevator device for an oil field workover operation machine. Background technique [0002] The tubing elevator is an essential tool for oil field workover operations. When carrying out the workover operation, the tubing elevator must be used to lift the tubing string, and the tubing elevator must also be used when the tubing is lowered. At present, most of the oil pipe elevator devices used in the field adopt a split structure, which is neither convenient nor safe to use, especially when lifting the oil pipe, once the buckle breaks, the latch is easily damaged. It is very easy to cause personal injury accidents. [0003] Similarly, the sucker rod elevator is a special tool for lifting and lowering the sucker rod during oil field workover operations. At present, the sucker rod elevator devices used in the field are reed self-locking elevators with a combinati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B19/06
Inventor 曲道奎刘宝李庆杰严玉中刘海刚孙辉赵洪涛谷波
Owner SHENYANG SIASUN ROBOT & AUTOMATION
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