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Serpentine inner support device for girth welding of large-diameter storage tank cylinder section

A technology of circular seam welding and supporting devices, which is applied in the direction of auxiliary devices, welding equipment, auxiliary welding equipment, etc., can solve the problems such as the inability to realize the overall autonomous movement, meet the requirements of clamping and positioning, avoid cumbersome steps, and achieve flexible movement capabilities Effect

Active Publication Date: 2021-12-17
SHANGHAI JIAO TONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this equipment cannot achieve overall autonomous movement. After the welding is completed, it needs to be withdrawn from the storage tank manhole through an auxiliary disassembly device.

Method used

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  • Serpentine inner support device for girth welding of large-diameter storage tank cylinder section
  • Serpentine inner support device for girth welding of large-diameter storage tank cylinder section
  • Serpentine inner support device for girth welding of large-diameter storage tank cylinder section

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Embodiment Construction

[0034] The following describes several preferred embodiments of the present invention with reference to the accompanying drawings, so as to make the technical content clearer and easier to understand. The present invention can be embodied in many different forms of embodiments, and the protection scope of the present invention is not limited to the embodiments mentioned herein.

[0035] In the drawings, components with the same structure are denoted by the same numerals, and components with similar structures or functions are denoted by similar numerals. The size and thickness of each component shown in the drawings are shown arbitrarily, and the present invention does not limit the size and thickness of each component. In order to make the illustration clearer, the thickness of parts is appropriately exaggerated in some places in the drawings.

[0036] Such as figure 1 As shown, the present invention provides a serpentine inner support device for circular seam welding of la...

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Abstract

The invention discloses a serpentine inner support device for girth welding of large-diameter storage tank cylinder section, and relates to the field of inner support devices for girth welding of large thin-walled cylinder components. The serpentine inner support device comprises a middle unit, a head section unit, a tail section unit, a middle connecting module and a head-tail self-locking module, wherein the middle connecting module connects all units in sequence; and the head-tail self-locking module is located between the head section unit and the tail section unit. When the middle connecting module and the head-tail self-locking module are in a self-locking state, all the units are arranged in the circumferential direction of the inner wall of the storage tank cylinder section, high-rigidity inner support is provided, and the inner support function during girth welding of the storage tank cylinder section is achieved; and when the middle connecting module and the head-tail self-locking module are in a moving or disconnecting state, the device is in a super-redundant free state and can be automatically withdrawn from a storage tank manhole. The device is simple in structure, provides high-strength support for girth welding of the storage tank cylinder section, does not need an auxiliary dismounting device, and can be conveniently withdrawn from a storage tank.

Description

technical field [0001] The invention relates to the technical field of inner support for circular seam welding of large thin-walled cylindrical members, in particular to a serpentine inner support device for circumferential seam welding of large-diameter storage tank barrel sections. Background technique [0002] High-precision welding of large-diameter tanks is a key technology and difficult problem in the assembly and manufacture of heavy-duty launch vehicles. At present, the storage tank is welded by two tank bottoms and multiple cylinder sections, often in the form of friction stir welding. The huge forging force of the stirring head acts on the wall of the welded storage tank, which will cause serious deformation of the wall and non-negligible errors. Therefore, in the welding process, it is of great significance to install a supporting shape-correcting mechanism inside to ensure the shape and position accuracy of the entire storage tank during the welding process. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K37/04
CPCB23K37/0443
Inventor 陈根良王皓康晔政管桐司洪轩
Owner SHANGHAI JIAO TONG UNIV
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