Oil pipe dragging mechanical hand for oil pipe lifting device

Abstract

The invention discloses an oil pipe dragging mechanical hand for an oil pipe lifting device. The oil pipe dragging mechanical hand comprises a pull rod, a sliding hinge support frame and an oil pipe clamp body, wherein the middle part of the pull rod is hinged onto the sliding hinge support frame; the sliding hinge support frame is arranged on a V-shaped groove pulley in a sliding way; the oil pipe clamp body is arranged at the upper side and the lower side of the front end of the pull rod; the back end of the pull rod is hinged to a secondary pull rod; and the back end of the secondary pull rod is hinged to the back end part of the V-shaped groove pulley. The oil pipe clamp body comprises an upper clamp body, a lower clamp body, an upper connecting rod and a lower connecting rod; the upper clamp body and the lower clamp body are two symmetrical semiconic bodies of the same structures; the upper clamp body is hinged to the upper side of the upper end of the pull rod through the bottom end of the semiconic body of the upper clamp body; the lower clamp body is hinged to the lower side of the upper end of the pull rod through the bottom end of the semiconic body of the lower clamp body; the front end of the upper connecting rod is hinged to the outer side of the top end of the upper clamp body of the semiconic body; and the front end of the lower connecting rod is hinged to the outer side of the top end of the lower clamp body of the semiconic body. The oil pipe dragging mechanical hand has the advantages that the mechanical hand is used for replacing human hands to perform gripping and dragging work procedures; the work intensity of workers is reduced; the mechanization degree of workover operation is improved; and the workover operation safety is improved.

Description

Technical field [0001] The invention relates to a tubing lifting operation in an oil field workover operation, in particular to a tubing drag manipulator for a tubing lifting device. Background technique [0002] Patent ZL201420018434 provides a mechanized operation device for oilfields. The tubing lifting system described in it is used to complete the lifting, lowering and conveying procedures of tubing. It is an important device for transporting tubing between the wellhead and the tubing row at the wellsite. However, when the oil pipe is lifted, the hook lifts the oil pipe and the threaded end of the oil pipe is placed in the V-shaped groove trolley of the oil pipe lifting system. The small trolley retreats, the hook is lowered, and the oil pipe is placed in the V groove under the action of gravity. [0003] The key to the successful completion of the above steps is that the distance between the working platform of the mechanized working device and the ground is greater than 2m, ...

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Problems solved by technology

[0004] After searching, no publications of the same technology were found in this technical field

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