Finger lock mechanism, mechanical arm and drilling workover rig

Abstract

The invention provides a finger lock mechanism, a mechanical arm and a drilling workover rig. The finger lock mechanism comprises a mounting base, a stop block and a first power device, wherein the mounting base is provided with a mounting groove, the mounting base is suitable for being connected to grabbing arm bodies of the mechanical arm, one part of the stop block is positioned in the mountinggroove, the other part of the stop block extends out of the mounting groove, and the first power device is arranged on the mounting base, is connected to the part, extending into the mounting groove,of the stop block in a driving mode and is used for driving the stop block to rotate so as to adjust the position of the stop block relative to the mounting base. According to the finger lock mechanism, the mechanical arm and the drilling workover rig, the first power device and the stop block are integrated together through the mounting base, the modular arrangement facilitates assembly and disassembly, meanwhile, one part of the stop block is positioned in the mounting groove, and when the first power device drives the stop block to rotate, the mounting groove can play a limiting role, so that the stop block can stably move.

Description

technical field [0001] The invention relates to the technical field of drilling and workover rigs, in particular to a finger lock mechanism, a mechanical gripper and a drilling and workover rig. Background technique [0002] In drilling and workover rigs, some procedures require the use of a mechanical gripper to grab the drill pipe. When in use, the mechanical gripper holds the drill pipe through two gripping arms. Due to the different diameters of the drill pipes, when grabbing a large-diameter drill pipe At this time, due to the large distance between the two grasping arms and the reduced rigidity of the grasping hand, the drill pipe is easy to fall out of the two grasping arms. The existing grasping arm prevents the drill pipe from detaching through the finger lock. However, the structure of the finger lock is unreasonable. Multiple installation and coordination structures need to be provided, the structure is complex, and the cost is high. Contents of the invention ...

AI Technical Summary

Problems solved by technology

[0002] In drilling and workover rigs, some procedures require the use of a mechanical gripper to grab the drill pipe. When in use, the mechanical gripper holds the drill pipe through two gripping arms. Due to the different diameters of the drill pipes, when grabbing a large-diameter drill pipe At this time, due to the large distance between the two grasping arms and the reduced rigidity of the grasping hand, the drill pipe is easy to fall out of the two grasping arms. The existing grasping arm prevents the drill pipe from detaching through the finger lock. However, the structure of the finger lock is unreasonable. It is necessary to set up multiple installation and matching structures, the structure is complex and the cost is high

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