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Long-distance pipeline seam welding protector and aligning device provided with protector

A technology for seam welding and long-distance pipelines, which is applied in the field of welding seam protection devices, can solve the problems of harsh working environment, affecting the smoothness of the inner wall, and high labor intensity, so as to shorten the construction time, clean the inner cavity of the pipeline, and improve the laying progress Effect

Inactive Publication Date: 2015-03-18
丹东曙光泵阀有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, hand welding or semi-automatic welding construction methods are generally used in the laying of long-distance pipelines. During the welding operation, irregular welding bumps, burrs, molten iron and welding liquid crystals will be formed on the inner wall of the pipe, which will affect the smoothness of the inner wall and need to be manually removed. Welding, grinding the inner wall of the pipe, and cleaning the inner cavity of the pipe. These post-processing operations can only be removed manually at present. The working environment is harsh and labor-intensive, which also greatly delays the construction process.

Method used

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  • Long-distance pipeline seam welding protector and aligning device provided with protector
  • Long-distance pipeline seam welding protector and aligning device provided with protector
  • Long-distance pipeline seam welding protector and aligning device provided with protector

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Embodiment Construction

[0014] The present invention applies for a separate long-distance pipeline seam welding protector, as shown in the figure, it includes several weld seam guard plates 1 shaped as parallelograms, and the top of each weld seam guard plate 1 has a structure corresponding to the inner wall surface of the pipeline 4 In accordance with the arc surface, each weld guard plate 1 is rotated in the same arrangement direction and installed on each push part 2 arranged uniformly and radially around the circumference, and is radially ejected or retracted by the push part 2 . When the pushed part 2 is pushed out radially, in the process of deflecting to the limit position in the same direction of each weld guard plate 1, each butt joint surface is completely connected with each other, so that each top arc surface is connected as a circumferential ring surface that fits with the inner wall of the pipe 4, Such as figure 1 with figure 2 As shown, the pair of vertex angles of the parallelogram ...

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Abstract

The invention provides a long-distance pipeline seam welding protector, comprising a plurality of seam protective plates the top of which are respectively provided with an arc surface matched with the inner wall of a pipeline, the seam protective plates are rotatably arranged on pushing parts which are uniformly and radially arranged on the circumference, and a butt surface which is radially pushed to a circular ring surface that is joined by each top arc surface and is adhered with the inner wall of the pipeline by the pushing part is arranged between each seam protective plate and an adjacent seam protective plate. By adopting the technical scheme of the invention, after welding is completed, the technical aim of smooth and clean inner wall of the pipeline is realized; and especially when an aligning device provided with the protector disclosed by the invention, multifunctional equipment which continuously complete a pipeline aligning operation and a welding seam protection operation for pipeline pavement is formed, and construction progress of the pipeline pavement is greatly sped up.

Description

technical field [0001] The patent application of the present invention relates to a welding seam protection device used in the welding construction of long-distance pipelines, and in particular to a protection device and a counterpart for a smooth and burr-free welded nozzle seam. Background technique [0002] At present, hand welding or semi-automatic welding construction methods are generally used in the laying of long-distance pipelines. During the welding operation, irregular welding bumps, burrs, molten iron and welding liquid crystals will be formed on the inner wall of the pipe, which will affect the smoothness of the inner wall and need to be manually removed. Welding, grinding the inner wall of the pipe, and cleaning the inner cavity of the pipe. These post-processing operations can only be removed manually at present. The working environment is harsh and labor-intensive, which also greatly delays the construction process. Contents of the invention [0003] The pu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K37/00B23K37/053
Inventor 佟福恒
Owner 丹东曙光泵阀有限公司
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