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Deep water full-automatic hydraulic drawing pretension position compensating fixed-moment wrench

A fully automatic, constant torque technology, applied in metal processing, metal processing equipment, manufacturing tools, etc., can solve problems such as complex stress

Inactive Publication Date: 2009-10-28
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The deep-water submarine pipeline is thin and long, with complex forces, coupled with complex factors such as submarine currents and high pressure, the above methods will encounter some unpredictable control factors

Method used

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  • Deep water full-automatic hydraulic drawing pretension position compensating fixed-moment wrench
  • Deep water full-automatic hydraulic drawing pretension position compensating fixed-moment wrench
  • Deep water full-automatic hydraulic drawing pretension position compensating fixed-moment wrench

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Embodiment Construction

[0024] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0025] combine figure 1 , The main components of the deep-water fully automatic hydraulic tension pretension position compensation constant torque wrench include: fixed flange 1, bolt 2, nut 3, tension wrench 4, wrench seat 5, hydraulic motor 6, coupling 7, hydraulic cylinder 8. Hydraulic cylinder 9, guide shaft 10, pipeline 11, hole regulator 12. The wrench system is installed on the side of the nut store, and the upper mechanism of the device is the hole adjuster of the nut store. The function of the hole adjuster is to align the central axis of the wrench with the bolt axis after the nut bank is positioned on the pipeline. figure 1 Among them, the fixed flange 1 is welded on the pipe 11 and corresponds to the movable flange (rotary ring flange) on the other side. After the bolt holes of the fixed flange and the movable flange are aligned, insert 16 M90 bolts ...

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Abstract

The invention provides a deep-water fully automatic hydraulic stretching pretension position compensation constant torque wrench. It includes a stretching wrench [4] installed on the wrench seat [5], a hydraulic motor [6] is installed on the wrench seat [5], and the stretching wrench [4] is provided with a gear on the hydraulic motor [6]. The meshing gears, the rear end of the stretching wrench [4] is connected with the hydraulic cylinder [8] through the coupling [7], the guide shaft [10] is connected to the back of the hydraulic cylinder [8], and the wrench seat [5] is connected Hydraulic cylinder [9] is arranged, and hydraulic cylinder [9] is fixed on the hole regulator [12] of wrench storehouse. The device of the present invention is fixed on the nut store tool, and 16 wrenches with the same structure in the circumferential direction of the wrench storehouse coordinate with each other to complete the nut tightening of 16 bolts in the circumferential direction of the flange at the same time to realize the connection of the pipeline. The invention can realize the full-automatic connection of deep-water submarine pipeline flanges, and has broad application prospects in the mechanical flange connection of deep-water submarine pipelines.

Description

(1) Technical field [0001] The invention relates to a full-automatic constant moment wrench adopting a tension pretension position compensation method. (2) Background technology [0002] The mechanical connection of deep-water submarine pipelines often adopts the flange automatic connection method. To put it simply, the ROV (Remotely Operated Vehicle) first controls the H frame to support the pipes that need to be connected on the seabed, and after the special alignment tool realizes the alignment of the axial position of the pipeline, the flange is automatically connected with the tool, that is, the bolt library. And the nut storehouse, the bolt storehouse is used for inserting bolts, and the nut storehouse uses the wrench system of the present invention to tighten the nuts, and finally realizes the butt joint of two pipelines. The bolts and nuts are used to pre-tighten the two flanges (fixed flange and movable flange), and the metal gasket between the two flanges is compr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P19/06
Inventor 王立权王文明吴旭维李伟刘明珠刘军张岚林秋红王才东
Owner HARBIN ENG UNIV
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