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Pipe crawling welding device and method for complex environment

A technology for welding devices and complex environments, which is applied in the direction of auxiliary devices, welding equipment, auxiliary welding equipment, etc., can solve problems such as unsuitable small pipe diameters, reduce preparation and on-site recovery time, reduce complexity and cost, and reduce effect of difficulty

Active Publication Date: 2020-02-21
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the current pipe climbing devices climb into the pipe and are used for automatic welding of large-sized pipes, but not suitable for small pipe diameters.

Method used

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  • Pipe crawling welding device and method for complex environment
  • Pipe crawling welding device and method for complex environment
  • Pipe crawling welding device and method for complex environment

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with specific examples, but the present invention is not limited thereto.

[0032] see figure 1 , 2 , 3, 4, a pipe climbing welding device used in complex environments, including a support frame 1 fixed in series by fixed rods 1-1, a crawler mechanism 2, a positioning and clamping mechanism 3 and a rotating mechanism are fixed on the support frame Feed mechanism 4.

[0033] see Figure 4 , Figure 5 , Figure 6 , the crawling mechanism 2 includes an active mechanism 2-1 and a driven mechanism 2-2, the active mechanism 2-1 includes a fixed plate 2-1-1 fixed on the support frame 1, and a fixed plate 2-1-1 Rollable two main rollers 2-1-2 are installed, one end of the central shaft of the main rollers 2-1-2 is fixed with a bevel gear 2-1-3, and the bevel gear 2 on the two main rollers 2-1-2 -1-3 are respectively engaged with the upper two bevel gears 2-1-5 fixed on the same main rotating shaft 2-1-4,...

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Abstract

The invention discloses a pipe crawling welding device and method for the complex environment. The device mainly comprises a positioning clamping mechanism, a crawling mechanism and a rotating feedingmechanism. The positioning mechanism mainly comprises a rotating ring, a pressing rod, a stepping motor and a driving gear. The crawling mechanism comprises a driving gear mechanism and a driven gearmechanism. The driven gear mechanism mainly comprises a worm, a worm wheel, a lead screw frame, a roller and a stepping motor, and the driving gear mechanism mainly comprises a bevel gear, a roller and a servo motor. The rotating feeding mechanism mainly comprises a gear disc, a linear stepping motor, a stepping motor and a transmission gear. The driving gear mechanism drives a device body to crawl along a pipe, and after the designated position is reached, the pipe is clamped and positioned by the positioning clamping mechanism so as to perform welding. The pipe crawling welding device is simple in structure, small in size, capable of achieving crawling along the pipe and performing automatic welding, and applicable to the complex environment to which workers cannot get close.

Description

technical field [0001] The invention belongs to the field of pipeline welding, in particular to a pipe climbing welding device and method used in complex environments. Background technique [0002] In nuclear devices, some components need to be removed and maintained regularly. These components are often connected with various pipelines. After the maintenance is completed, these pipelines need to be re-welded, and the environment is a harsh environment of high temperature and radiation. , and the space is so small that people can't get close to it. At present, one way is to use a robot or a mechanical arm to simulate human operation, and another feasible solution is to use a pipe climbing device to crawl along the pipeline to the welding site for welding. The welding method using robots to simulate human hands is more suitable for centralized welding. In the environment where pipelines are scattered in a large area, the robot needs to be moved and fixed many times, which is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K37/02
CPCB23K37/02B23K37/0217Y02E30/30
Inventor 陈思潘洪涛程羊程勇宋云涛张宇杨松竹赵文龙郝志伟姚智鑫
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI