An anti-off and anti-single ring hoisting system

Abstract

The invention discloses a disengagement prevention and single suspension ring prevention lifting system, and belongs to the field of oil drilling equipment. The system comprises a disengagement prevention component, the disengagement prevention component comprises a stop block and a lock block, the stop block is in locked connection with the lock block, a sensing component is arranged on the stop block, and a trigger block is arranged on the inner wall of a lower notch; the system further comprises a single suspension prevention component and a disengagement prevention mechanism, the single suspension prevention component comprises a controller, the controller is in wireless electric connection with the sensing component, the disengagement prevention mechanism comprises a locking block and a baffle block, the locking block is in locking connection with the baffle block, the locking block comprises a latch hook portion and a stress portion, the baffle block performs pendulum motion around a rotating shaft, the baffle block swings clockwise and is locked with a latch hook portion of the locking block, the baffle block swing anticlockwise and is unlocked with the locking block, the baffle block comprises a locking portion and a disengagement prevention portion, the locking portion is located inside the upper notch of a suspension lug, and the disengagement prevention portion is located inside a lug hole of the suspension lug. A suspension ring can be firmly blocked into the lug hole, and the using stability of the whole lifting system is ensured; lifting of the single suspension ring can be avoided, and potential safety hazards are eradicated.

Description

technical field [0001] The invention relates to the technical field of oil drilling equipment, in particular to an anti-off and anti-single ring hoisting system. Background technique [0002] In drilling engineering, an elevator is a tool used to lift pipes such as drill pipes, oil pipes and casings. It is hung in the lifting rings on both sides of the hook of the hoisting system, so as to lift out or run in the drilling tool, tubing and casing of the wellbore. [0003] During actual use, due to the influence of various factors such as the environment, the lifting ring is easy to slip out of the ear hole of the elevator, causing a major safety accident. In order to prevent the lifting ring from falling off from the ear hole of the elevator, the elevator is usually equipped with an anti-off device. The anti-off device in the prior art mostly adopts a bolt structure, and a longitudinal bolt hole is set at the lifting ear of the elevator, and the bolt is inserted into the bolt...

AI Technical Summary

Problems solved by technology

[0008] 1. Due to the integrated structure of the pedal, the limit boss and the ring stopper, the ring stopper is fixed in the boom of the main body of the elevator through the pin shaft. As the gap increases, the ring block is more likely to rotate, and the ring block cannot effectively block the ring, resulting in a reduction in the safety and reliability of the operation process

[0009] 2. When the traveling vehicle is hoisted, it is usually manually checked whether the lifting lugs on both sides of the elevator have been loaded into the lifting rings. Due to human negligence, it is easy to happen that one lifting ring has been installed in the lifting lugs, while the other side is not loaded or If it is not installed properly, the single lifting ring will be lifted directly, which will cause serious safety accidents

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