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Walking power tongs

A power tong and walking-type technology, which is applied to drilling equipment, earthwork drilling, drilling pipes, etc., can solve the problems of poor safety and reliability, cumbersome installation, and affecting the use of suspension tools, and achieves convenient operation, high degree of mechanization, The effect of safe and reliable work efficiency

Inactive Publication Date: 2018-06-05
王丽艳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above method has the following disadvantages: ①The tong is suspended, which is cumbersome to install and affects the use of other suspension tools in the derrick; The tong head hits the drill pipe, resulting in poor safety and reliability; ③In operation, the tong is manually pushed and pulled back and forth, or the tong is lifted and lowered by a hand chain hoist, which is labor-intensive; Larger, if not careful, it will damage the thread of the joint

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with drawings and embodiments.

[0016] Such as figure 1 , figure 2 , The main structure of walking power tongs includes: main tongs, gantry-type functional frame, hydraulic-pneumatic joint control system and walking track.

[0017] The main tong is the key to the work of the power tong, and its function is to clamp the drill pipe joint and implement make-up or breakout. Based on the original ZQ100 power tongs, the main tongs of the new power tongs have removed the boom and the transfer cylinder, and retained the mature tong head clamping mechanism, pneumatic tire clutch type planetary transmission mechanism and gear transmission mechanism. At the same time, the following structural improvements were made: (1) The original manual door frame was changed to a pneumatic automatic door, and the door bolt was driven by the cylinder to rotate to realize the automatic closing and opening of the door; (2) T...

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Abstract

The invention discloses walking power tongs. The power tongs are installed on special tracks through a gantry-type functional frame, driven by a hydraulic motor to walk and lifted through a hydrauliccylinder; meanwhile, a pneumatic automatic door and a low-gear make-up automatic protection device are additionally arranged, and a hydraulic-pneumatic combined control system is adopted. The new developed walking power tongs completely meet drilling operation requirements and have the advantages of being high in mechanization degree, convenient to operate, safe and reliable, high in operation efficiency and the like.

Description

technical field [0001] The invention relates to a walking type power tong, which is suitable for the mechanical field. Background technique [0002] The power tongs currently used in domestic oil fields and mines, including drill pipe power tongs (such as ZQ100 power tongs), casing power tongs, and workover power tongs, have always been suspended installations, and use cylinder telescopic or manual Push-pull forward and backward transfer method. The above method has the following disadvantages: ①The tong is suspended, which is cumbersome to install and affects the use of other suspension tools in the derrick; The tong head hits the drill pipe, resulting in poor safety and reliability; ③In operation, the tong is manually pushed and pulled back and forth, or the tong is lifted and lowered by a chain hoist, which is labor-intensive; If it is too large, it will damage the thread of the joint if you are not careful. Contents of the invention [0003] The invention proposes a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B19/16
CPCE21B19/163
Inventor 王丽艳
Owner 王丽艳