U-rib internal supine welding system based on multi-segment plug-in platform

Abstract

The invention relates to the technical field of bridge maintenance, and discloses a U-rib internal supine welding system based on a multi-segment plug-in platform. The mobile platform includes at least two platform segments and a plug-in mechanism. Each platform segment includes a platform body and a walking mechanism installed under the platform body; the platform body is provided with a radar sensor for detecting raised obstacles; the walking mechanism includes multiple walking feet and walking foot synchronization mechanisms, multiple Two walking feet are arranged at intervals below the platform body along the length direction of the platform body, and the walking foot synchronization mechanism synchronizes the movement of the walking feet to the adjacent walking feet. In the U-rib internal supine welding system based on the multi-segment plug-in platform of the present invention, the mobile platform is divided into at least two platform segments and connected by a plug-in mechanism. Inside the rib; the mobile platform is divided into at least two platform segments, which can pass through the curved section in sections, making it easier to pass and also suitable for U ribs with a larger angle in the curved 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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