Mounting trolley of welding backings for steel structure U-shaped ribbed plate

Abstract

The invention discloses a mounting trolley of welding backings for a steel structure U-shaped ribbed plate. A pair of welding backings is symmetrically paved on an inner groove in a narrow and small space formed by a steel top plate and the U-shaped ribbed plate; the mounting trolley comprises a trolley body, a traveling mechanism, a reforming mechanism and an aluminum foil adhesive tape pre-deformation mechanism, wherein the traveling mechanism comprises at least two pair of guide wheels, at least two pairs of traveling wheels and a traveling motor; the reforming mechanism comprises at least one pair of first pressing wheels and at least one pair of first elastic members which are separately and symmetrically arranged; and the aluminum foil adhesive tape pre-deformation mechanism comprises a pair of pay-off wheels, a pay-off motor, a pair of V-shaped guide plates, a pair of second pressing wheels, a pair of second elastic members, a pair of hair brushes and a pair of third elastic members. According to the mounting trolley disclosed by the invention, the welding backings can be mounted in the narrow and small space on the back of a fillet weld of the steel structure U-shaped ribbed plate, the requirements on a welding process and an assembling process of a production field are loosened, the weld penetration of the fillet weld of the steel structure U-shaped ribbed plate is prevented, good positive and negative forming of the fillet weld is realized, the consumption of manpower and material resources is reduced, and the production efficiency and the quality are improved. The mounting trolley has relatively-high application value.

Description

technical field [0001] The invention relates to the technical field of bridge welding. More specifically, the present invention relates to a welded liner attaching trolley for steel structure U-shaped ribs. Background technique [0002] At present, the design requirements of U-shaped rib fillet welds on most steel structures at home and abroad are that the penetration depth is not less than 80% of the plate thickness, and there is no weld leakage, and the surface is smooth and even. However, in order to meet this requirement, strict requirements must be imposed on the assembly process and welding process in the production process. In the welding process of existing welding methods, due to factors such as large assembly gap errors and no protective measures on the back of the weld seam, it is very easy to cause the workpiece to be welded through. Or fail to meet the design penetration requirements, resulting in too much rework, the quality cannot be guaranteed, and because t...

AI Technical Summary

Problems solved by technology

However, in order to meet this requirement, strict requirements must be imposed on the assembly process and welding process in the production process. In the welding process of existing welding methods, due to factors such as large assembly gap errors and no protective measures on the back of the weld seam, it is very easy to cause the workpiece to be welded through. Or fail to meet the design penetration requirements, resulting in too much rework, the quality cannot be guaranteed, and because the steel structure U-shaped ribs have a small space on the back of the weld, it is impossible to manually paste the liner for protection. It is very meaningful for the small space to carry out the welding pad mounting car

Images