Union melt welding machine-dedicated device for longitudinal seams of cylindrical membrane walls

Abstract

The invention relates to a union melt welding machine-dedicated device for the longitudinal seams of cylindrical membrane walls, which utilizes workpiece pipes for guiding to weld the inner and the outer longitudinal seams of cylindrical membrane walls. The union melt welding machine-dedicated device comprises cylindrical membrane walls to be welded and a union melt welding machine trolley, the cylindrical membrane walls to be welded are mounted on a cylindrical membrane wall longitudinal seam-welding tooling, the trolley comprises a trolley body, a guide wheel, a driving guide wheel, a cylindrical driving wheel and a welding wire guide nozzle, the guide wheel is arranged at the center of the front end of the trolley body, the driving guide wheel and the driving wheel are symmetrically arranged on both sides of the rear end of the trolley body, and the guide wheel, the driving guide wheel and the driving wheel are formed into a three-wheeled structure; the guide wheel is a convex guide wheel, and the size of the convex part of the convex guide wheel is equal to the size of the gap between the two neighboring cylindrical membrane walls to be welded on the welding tooling. The shapes of the wheels of the union melt welding machine-dedicated device disclosed by the invention can be changed according to the welding characteristics of the longitudinal seams of cylindrical membrane walls, consequently, the traveling stability of the trolley can be enhanced in the process of welding, and the welding efficiency can be increased.

Description

technical field [0001] The invention relates to a submerged arc automatic welding machine device, in particular to a submerged arc automatic welding machine special device for welding the inner and outer longitudinal weld seams of a cylindrical membrane wall by using a workpiece pipe as a guide. Background technique [0002] The coal chemical industry is playing an increasingly important role in the national economy; its main equipment "gasifier" is composed of an outer shell and internal parts; the internal parts are mainly composed of multi-section cylindrical water-cooled membrane walls; the cylindrical membrane wall is composed of The round tube and flat steel are alternately welded. [0003] The use of submerged arc automatic welding for cylindrical membrane wall longitudinal seam welding has the advantages of high efficiency, beautiful shape, and low labor intensity. Using the tube of the membrane wall itself as the guide rail and using the submerged arc automatic wel...

AI Technical Summary

Problems solved by technology

But the wheel of the submerged arc automatic welding machine dolly in the prior art is cylindrical, and the cylindrical wheel is on the cylindrical membrane wall pipe wall to be welded on the cylindrical membrane wall longitudinal seam welding tool because the wheel has no limit in the height direction The body fluctuates greatly, and the trolley walks unstable during the welding process, resulting in unsatisfactory welding results

Images