An automated welding apparatus for a de-arching device housing

By designing a support frame and spring buffer structure, the offset problem caused by multi-specification adaptation and thermal expansion and contraction in the welding equipment of the rotating scraper-type silo scraper arch breaker shell was solved, achieving high-quality welding effect and cylinder protection.

CN122500446APending Publication Date: 2026-08-04YANGZHOU YONGRUI MACHINERY CO LTD
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Patent Information

Application Number
CN202610950444.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-06-29
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

In the existing technology, the welding equipment for the shell of the rotary scraper-type hopper arch breaker cannot be adapted to various inner diameter cylinders. During the welding process, the flange is prone to axial and radial slippage, resulting in misalignment of the weld seam and uneven gaps. In addition, the thin-walled cylinder is prone to heat deformation, and traditional clamping methods may cause damage to the flange.

Method used

An adjustable support frame and spring buffer structure are adopted. The support frame is close to the edge of the flange end face to form a circumferential limit, and the spring buffer offsets the rigid impact force. The inner roller synchronously supports the cylinder to avoid displacement caused by thermal expansion and contraction. Multi-point support and rotary welding are achieved through cylinder and linkage mechanism.

Benefits of technology

It enables the adaptation of arch-breaking device cylinders of different specifications, avoids the displacement and damage of flanges and cylinders during welding, ensures welding quality and the smoothness of the inner wall of the cylinder, and reduces wear and deformation.

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Abstract

This invention relates to the field of arch breaker shell welding technology, and specifically discloses an automated welding device for arch breaker shells. A welding component is fixedly connected to the center of the top of the workbench, and positioning components are slidably connected to both sides of the top of the workbench. Placement seats are symmetrically arranged on the top of the workbench, with their bottoms slidably connected to the top of the workbench. One end of a lead screw is rotatably connected to the inner side of the workbench. This automated welding device for arch breaker shells can pre-adjust the extension position of the support frame according to the outer diameter of the flange matching different specifications of the arch breaker cylinder, so as to adapt to the flange outer diameter. When welding the cylinder and flange, the weld area continuously experiences high temperature, resulting in thermal expansion. After cooling, it contracts, which can easily cause the flange to shift axially and radially, leading to misalignment of the circumferential seam and uneven gaps. The support frame closely adheres to the edge of the flange end face, forming a circumferential limiting constraint to prevent movement during welding.
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