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Unclamping device on drilling rod joint

A drill pipe joint and locking device technology, applied in metal processing, metal processing equipment, manufacturing tools, etc., can solve the problems of insufficient torque, low work efficiency, large torque inertia, etc., and achieve strong pressure consistency and work. Efficient, torque-accurate results

Inactive Publication Date: 2010-12-08
DP MASTER MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Before the present invention was made, the original screw-on and break-out machine would cause many and deep tooth marks on the surface of the drill pipe joint when the screw-on and break-out machine was loosened, and its torque inertia was large. To torque, the appearance is not beautiful, and it takes a long time, and the work efficiency is low

Method used

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  • Unclamping device on drilling rod joint
  • Unclamping device on drilling rod joint

Examples

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Embodiment Construction

[0013] see figure 1 , The breakout device for drill pipe joints involved in the present invention is mainly composed of cylinder I 1, rack 2, transition gear 3, semicircular gear 4, locking device 5, slider 6, connecting rod 7 and cylinder II 8.

[0014] Described oil cylinder I 1 is connected with tooth bar 2, and described tooth bar 2 is meshed with the transition gear 3 below it, and described transition gear 3 is meshed with the semicircle gear 4 below it, and the locking of described semicircle gear 4 and its bottom The device 5 is connected, and the slider 6 is connected under the locking device 5, and the slider 6 is connected with the oil cylinder II 8 through the connecting rod 7.

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Abstract

The invention relates to an unclamping device on a drilling rod joint, which is characterized by comprising an oil cylinder I (1), a rack (2), a transitional gear (3), a semi-circle gear (4), a locking device (5), a slide block (6), a connecting rod (7) and an oil cylinder II (8), wherein the oil cylinder I (1) is connected with the rack (2) which is engaged with the transitional gear (3) below the rack (2), the transitional gear (3) is engaged with the semi-circle gear (4) below the transitional gear (3), the semi-circle gear (4) is connected with the locking device (5) below the semi-circlegear (4), and the lower part of the locking device (5) is connected with the slide block (6) which is connected with the oil cylinder II (8) through the connecting rod (7). The unclamping device on the drilling rod joint can adjust pressure according to different joints, and has the advantages of strong pressure consistency, accurate torque and high operating efficiency in the operating process.

Description

(1) Technical field [0001] The invention relates to a make-up and break-out device for a drill pipe joint. (2) Background technology [0002] Before the drill pipe joint is welded, make-up and break-out tests must be carried out, so that the thread and bearing surface can be loaded accordingly, and the cooperation of the joint can be tested, thereby reducing the possibility of the thread being pierced by the mud. [0003] Before the present invention was made, the original screw-on and break-out machine would cause many and deep tooth marks on the surface of the drill pipe joint when the screw-on and break-out machine was loosened, and its torque inertia was large. To the torque, the appearance is not beautiful, and it takes a long time, and the work efficiency is low. (3) Contents of the invention [0004] The object of the present invention is to overcome the above disadvantages and provide a make-up and break-out device for drill pipe joints that can adjust pressure ac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P19/00
Inventor 郑银良肖天甫
Owner DP MASTER MFG
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