Hydraulic clamp on-off reverse torque device and adjustment method thereof

Abstract

The invention provides a hydraulic clamp on-off reverse torque device and an adjustment method thereof and belongs to the technical field of well repair machinery for the oilfield. A fixing frame is formed by two steel plates which are fixed on the bilateral sides of a hydraulic clamp body through bolts respectively; the clamping hydraulic clamp is in bolt connection with an inverted U-shaped torque frame to hang the hydraulic clamp; a pin hole is machined at the top end of each split of an inverted Y-shaped balance frame and connected with each ear hole formed in the upper plane of the hydraulic clamp body; an projection and a hole are formed in the lateral side of the top end of each split of the inverted Y-shaped balance frame and an adjustment screw is arranged in the lateral side of the top end of each split of the inverted Y-shaped balance frame to adjust the integral balance of the hydraulic clamp; a pin hole is machined at the top end of the inverted Y-shaped balance frame and connected with a balance frame beam; a pin hole is machined in the middle of the balance frame beam and connected with a torque cylinder lower core shaft through a pin; an extensible torque cylinder body is shaped like a cylinder. According to the hydraulic clamp on-off reverse torque device and the adjustment method thereof, the fixation and balance problems of the hydraulic clamp during remote operation can be solved, the labor intensity is reduced, the machining and the production are simple, the maintenance is convenient, the operation is reliable, and the failure rate is low.

Description

Technical field [0001] The invention relates to an anti-torque device and an adjustment method for a hydraulic tongs upper and lower unloading, belonging to the technical field of workover machinery for oil fields. Background technique [0002] At present, hydraulic tongs are an indispensable construction machine tool for threading and unloading pipe strings for downhole operations in oil fields. Most domestic oil fields use hydraulic tongs that are mainly operated manually. The pliers are suspended by a wire rope as a whole. When the jaws bite the shackle on the outer wall of the pipe string, the whole hydraulic pliers will rotate in the direction of the shackle on the pipe string. The tail part of the pliers must be fixed with a pliers tail rope to prevent rotation, resulting in torque Only when you put all on the tail rope, you can complete the hook-up procedure. When the pliers tail rope is stretched straight or cannot withstand high torque, it will be broken, causing person...

AI Technical Summary

Problems solved by technology

Solve the problem that the traditional hydraulic tongs must rely on the tong tail rope to carry the reaction torque, and at the same time solve the overall fixation and balance problems of the remote-operated hydraulic tongs

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