U-rib internal overhead welding system based on multi-section inserting platform

Abstract

The invention relates to the technical field of bridge maintenance, and discloses a U-rib internal overhead welding system based on a multi-section inserting platform. A moving platform comprises at least two platform sections and an inserting mechanism, and the adjacent platform sections are connected through the inserting mechanism; each platform segment comprises a platform body and a walking mechanism installed below the platform body; a radar sensor for detecting a raised obstacle is arranged on the platform body; the walking mechanism comprises a plurality of walking feet and a walking foot synchronizing mechanism, the walking feet are arranged below the platform body at intervals in the length direction of the platform body, and the walking foot synchronizing mechanism synchronizesthe movement of the walking feet to the adjacent walking feet. According to the U-rib internal overhead welding system based on the multi-section inserting platform, the moving platform is divided into at least two platform sections which are connected through the inserting mechanism, and the U rib can be placed in the U rib without forming a long inlet in the U rib; and the moving platform is divided into at least two platform sections to pass through the bent section in sections, so that the passing is easier, and the moving plate can be suitable for U ribs with larger angles of the bent section.

Description

technical field [0001] The invention relates to the technical field of bridge maintenance, in particular to a U-rib internal supine welding system based on a multi-segment insertion platform. Background technique [0002] Steel structure bridges have a history of more than 200 years, and their development is closely related to material technology, manufacturing technology, and structural design. In terms of structural design, steel trusses or steel plate girders were used in the early stage. Since the middle of the 20th century, with the maturity of the design level of orthotropic thin steel box girder structure and the improvement of welding technology, the steel box girder structure is characterized by its low height, light weight, high rigidity, large ultimate bearing capacity, easy manufacturing and structural Continuous and good features have become the main structural form of steel bridge decks. [0003] Orthotropic bridge decks are mainly composed of steel structura...

AI Technical Summary

Problems solved by technology

During the welding process of the real bridge, on the one hand, due to the deformation of the bridge structure or the rust and debris inside the U-rib, the mobile platform will shake, which will cause the position of the welding torch to shake, and it is easy to deviate from the area to be welded, affecting the welding effect

On the other hand, the length of the mobile platform that can meet the U-rib supine welding is more than 1 meter. In order to put the U-rib supine welding device into the U-rib of the real bridge, it is necessary to make a longer entrance for the U-rib. If the entrance is too long, it will have a greater impact on the bridge structure

Furthermore, when the U-rib is a curved section, the 1-meter-long mobile platform cannot turn and walk in the curved section, so that the U-rib of the curved section cannot be welded

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