Self-locking anti-drop elevator

Abstract

The invention discloses a self-locking anti-drop elevator, which belongs to the technical field of geological drilling. It has the characteristics of self-locking of the elevator and preventing the oil pipe from falling off. It mainly includes the elevator body, the lifting lugs are installed symmetrically on both sides of the elevator body, the lifting lugs are provided with horizontal grooves, the lifting lugs are provided with vertical grooves, and the pin rods are fixed in the vertical grooves, and the pin rods are fitted with limited Position ring, the lifting lug is provided with an inner groove on the upper side of the horizontal groove, the inner groove is arranged on one side of the vertical groove, the inner groove is provided with a window on the upper side of the pin rod, and a loading block is installed in the inner groove, and the loading block includes a bottom plate , top plate and side plate, the inner side of the side plate is fixedly connected to the elastic piece, and the elastic piece is fixedly connected to the baffle plate. The bottom surface of the baffle plate is inclined and is between the bottom plate and the top plate. The loading block and the second vertical connecting rod, the top surface of the second vertical connecting rod is an inclined plane; an anti-falling device is also included, and the anti-falling device includes a telescopic cylinder, a PLC controller, a mobile power supply and a displacement sensor.

Description

technical field [0001] The invention belongs to the technical field of geological drilling, and in particular relates to a self-locking anti-drop elevator. Background technique [0002] During drilling and downhole operations, it is often necessary to lower the drill pipe, tubing, tools, etc. into the well or lift them out of the well. In the actual production process, the lifting or lowering of the drill pipe, tubing, tools, etc. Devices include hooks, rings and elevators. Among them, the middle part of the elevator is formed with installation holes for fixing drill pipes, tools, oil pipes and other equipment. The upper and lower ends of the elevator are respectively formed with upper and lower ears on the same side. The lower part of the ring is hung on the upper ear of the elevator. When the equipment needs to be lifted, the lifting power device lifts the lifting ring through the hook, so as to lift the elevator, drill pipe, tool, oil pipe and other equipment. [0003]...

AI Technical Summary

Problems solved by technology

However, due to the high speed of drilling or running in, the lifting device will vibrate, and the pins are only inserted in the pin holes provided by the upper ear and the lower ear, and they are easy to move and fall out when vibrating up and down, making the elevator Falling from the ring, the ring bounces and flies out, which will threaten the safety of the on-site staff; moreover, when the elevator is in the working state, the oil pipe sometimes falls off, and the current elevators often do not have the function of preventing the oil pipe from falling off

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