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Hydraulic pliers

A hydraulic tong, hydraulic technology, applied in the field of hydraulic tongs, to achieve the effect of simple installation, reduce labor intensity, and avoid potential safety hazards

Inactive Publication Date: 2009-05-13
LIAOHE GASOLINEEUM EXPLORATION BUREAU +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems existing in the existing hydraulic tongs, the object of the present invention is to provide a hydraulic tongs that can automatically expand and contract, and can realize automatic loading and unloading of oil pipes (sucker rods).

Method used

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Embodiment Construction

[0026] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0027] As shown in Fig. 2 and Fig. 3, the present invention includes main tongs 11, backup tongs 15, high and low speed gear shift mechanism 10 and connecting frame 14, and connecting frame 14 is provided with two connectors 13, and connecting frame 14 passes connector first 13 is fixedly connected with the hydraulic tong telescopic frame of the body of the workover operation machine, and the connecting frame 14 itself is also fixed and installed on the hydraulic tong telescopic frame by screws. and the connection between the oil circuit and the circuit between the operating machine, the oil circuit connector and the explosion-proof aviation plug are also arranged on the connecting frame 14; Figure 4 As shown, a bottom plate 17 is provided below the connecting frame 14, and the back clamp 15 is fixedly installed on the bottom plate 17. The bottom plate 17 and...

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Abstract

The invention relates to an oil field well workover treatment tool, in particular to hydraulic tongs capable of realizing the automatic loading / unloading of an oil pipe and a sucker rod. The hydraulic tongs comprise main tongs, back tongs, a high-low-speed gear shift mechanism and a connecting support. The back tongs are arranged on the connecting support; the main tongs are positioned above the back tongs and are connected with the back tongs through a guide bar; and the main tongs can reciprocate up and down along the guide bar. The high-low-speed gear shift mechanism is arranged on the main tongs; the output end of the high-low-speed gear shift mechanism is connected with a gear shift device inside the main tongs; and the high-low-speed gear shift mechanism is also connected with a hydraulic control module. The hydraulic tongs are connected with a hydraulic tongs telescopic bracket of the machine body of the well workover machine through the connecting support. The hydraulic tongs are driven by the telescopic bracket to realize automatic telescoping, thereby freeing operators from a dangerous operating environment. Automatic operation is realized for the loading / unloading of the hydraulic tongs, thereby not only reducing the labor intensity of workers, but also avoiding possible accidental injury of workers during the operation.

Description

technical field [0001] The invention relates to a workover tool in an oil field, in particular to a hydraulic pliers for realizing automatic make-up and break-out of oil pipes and sucker rods. Background technique [0002] During the workover operation in the oil field, a lot of work is to connect or disassemble drill pipes, oil pipes, sucker rods and other workpieces, and then extract them one by one from the oil well or lower them into the oil well. Most of the workpieces such as connecting or disconnecting oil pipes or sucker rods are completed by hydraulic pliers. During workover operations, hydraulic tongs are usually used in pairs (the upper one is called the main tong, and the lower one is called the backup tong), which mainly consists of a hydraulic drive motor, a transmission gear and a jaw assembly, and the hydraulic drive is driven through the transmission gear. The output power of the motor is transmitted to the clamping tooth assembly, which makes the clamping ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B19/16
Inventor 刘宝李庆杰严玉中戴玉龙于永权陈启金福久
Owner LIAOHE GASOLINEEUM EXPLORATION BUREAU
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