Oil pipe automatic discharging mechanical arm

Abstract

The invention discloses an oil pipe automatic discharging mechanical arm, which comprises a lead screw, a lead screw driving device, a worm wheel, rolling wheels, a rolling wheel driving device, a bottom plate and an oil pipe grasping hand, wherein the lead screw is engaged with the worm wheel; the oil pipe grasping hand is arranged at the bottom end of the lead screw; the worm wheel is connected with the lead screw driving device; the lead screw driving device is arranged on the bottom plate; the bottom plate is provided with rolling wheels and operate on an operation rail through the rolling wheels; the bottom plate is also provided with the rolling wheel driving device used for driving the rolling wheels; a reaction torque rod is also connected between the oil pipe grasping hand and the floor; the lower end of the reaction torque rod is in rigid connection with the oil pipe grasping hand; the upper end of the reaction torque rod is positioned in a guide hole formed in the bottom plate; and the reaction torque rod and the lead screw do synchronous movement. The oil pipe automatic discharging mechanical arm has the advantages that the oil pipe automatic discharging mechanical arm can replace labor to be used for taking or placing an oil pipe; the work intensity of operation workers is reduced; the operation efficiency and the operation safety are improved; and meanwhile, the oil pipe discharging automation is favorably realized.

Description

technical field [0001] The invention relates to oil pipe discharge technology, in particular to an oil pipe automatic discharge mechanical arm. Background technique [0002] The oil and water well workover operation method widely used in China is that the wellhead workers carry out operations such as the elevator lifting of the wellhead, and the field workers perform the discharge work of the tubing. Among them, during the oil pipe discharge process, workers need to lift the oil pipe between the oil pipe row and the oil pipe stool, and roll the oil pipe on the oil pipe row. When the oil pipe is not discharged neatly, it is necessary to pull the oil pipe. cause personal injury to workers. [0003] The mechanization of domestic workover operations has made great progress compared with the past, such as the integration of lifting, loading and transportation has been realized in disassembly and transportation. In terms of lifting operations, there are well drilling rigs (worko...

AI Technical Summary

Problems solved by technology

However, the device that relies on gravity for pipe arrangement has the following problems: ① There is no external force intervention during the rolling process of the oil pipe, which is prone to rolling deviation and rolling problems, and the reliability is poor; ② During the two processes of lifting and lowering the oil pipe, the oil pipe The inclination direction of the platoon needs to be adjusted. During this process, the controllability of the oil pipe is low and accidents are prone to occur

[0005] Dai Changsheng et al. from Liaohe Oilfield designed a mechanized tubing pulling device (Oil and Gas Well Testing, 2007, Volume 16, Supplement). This device uses wire ropes to drag the tubing. The installation is cumbersome, and the overall size is large, and it is inconvenient to move, so it has not been widely used

[0006] In the current existing technology, the controllability of the gravity pipe arrangement is poor, the on-site installation is cumbersome when the steel wire rope is dragged to discharge the oil pipe, and there are many problems in the mechanization and automatic discharge of the oil pipe, resulting in less field application of automatic pipe arrangement and lack of a good accuracy. , high stability, and can meet the needs of on-site piping and the way of oil pipe discharge and related devices

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