Overhauling truss vehicle for large-span steel truss arch bridge arch

Abstract

The invention provides an overhauling truss vehicle for a large-span steel truss arch bridge arch. The vehicle comprises a truss system, a hanging basket system, a rail system and a driving system, the truss system comprises a truss, a pedestrian path is arranged on the truss, the hanging basket system comprises an inter-arch hanging basket and an outer side hanging basket, the outer side hangingbasket is connected to the two ends of the truss, the inter-arch hanging basket is connected to the truss in a sliding mode, the inter-arch hanging basket is located between the outer side hanging baskets at the two ends, and the inter-arch hanging basket and the outer side hanging basket can move up and down. The rail system comprises a rail, and the rail is connected to the bridge arches on thetwo sides; the driving systems are connected to the two ends of the truss and work to drive the truss to move along the rail. According to the overhauling truss vehicle, the driving system drives thetruss to move along the track, namely the bridge arch, overhauling of a bridge is achieved, the outer side hanging basket and the inter-arch hanging basket on the truss can move up and down, the inter-arch hanging basket can move along the truss, and all-around overhauling of the bridge is achieved.

Description

technical field [0001] The invention relates to the technical field of bridge maintenance, in particular to a maintenance truss vehicle used on the arch of a large-span steel truss arch bridge. Background technique [0002] With the continuous improvement of the concept of management and maintenance, the daily maintenance of bridges is becoming more and more important. At present, most of the long-span steel truss arch bridges that have been built are not equipped with inspection truss trucks or the inspection truss trucks are difficult to meet the needs of daily maintenance. [0003] The inventors have found that the arch inspection truss trucks installed on large-span steel truss arch bridges have the following main disadvantages: (1) The arch climbing ability is weak and unsafe, and cannot meet the needs of daily maintenance. Most of the arch trolley crawling mechanisms use hydraulic cylinders to cooperate The latch mechanism realizes the walking function. Such as figur...

AI Technical Summary

Problems solved by technology

[0002] With the continuous improvement of the concept of management and maintenance, the daily maintenance of bridges is becoming more and more important. At present, most of the long-span steel truss arch bridges that have been built are not equipped with inspection truss trucks or the inspection truss trucks are difficult to meet the needs of daily maintenance.

[0003] The inventors have found that the arch inspection truss trucks installed on large-span steel truss arch bridges have the following main disadvantages: (1) The arch climbing ability is weak and unsafe, and cannot meet the needs of daily maintenance. Most of the arch trolley crawling mechanisms use hydraulic cylinders to cooperate The latch mechanism realizes the walking function

The time-consuming and labor-intensive manual pin fixing mode used in the climbing of the arch maintenance truss truck can no longer meet the needs of high-efficiency operations

[0005] (2) The truss structure cannot be automatically adjusted horizontally with the change of the slope, causing the maintenance personnel to be perpendicular to the arch when performing maintenance on the trolley, which will bring certain psychological pressure to the maintenance personnel during the maintenance process. It is also not easy to carry out maintenance

(3) During the walking process of the trolley, the track may be stuck due to the bending and deformation of the track, which will cause the trolley to be stuck in the maintenance process; (4) The driving mechanism on both sides is inconsistent during the walking process, resulting in a distance deviation between the two sides; ( 5) The trolley is made of welded steel structure, and the weight of the trolley is nearly 30 tons

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