Running device for arch bridge

Abstract

The invention relates to a running device for an arch bridge. The running device comprises guide rails fixedly arranged on the undersurface of the arch bridge and moving units hung on guide rail assemblies through hanging mechanisms, wherein a chain is fixedly arranged at the bottom end of each guide rail; chain wheels and a power source are arranged on each moving unit. Due to the construction of the power sources, the chain wheels can be driven to rotate on the chains, so that the moving units move on the guide rails. The running device for the arch bridge is simple in structure, convenient to produce, stable and reliable in operation and convenient to apply and popularize.

Description

Technical field [0001] The invention relates to a walking device for arch bridges. Background technique [0002] As we all know, the safety of arch bridges is always the focus of construction personnel, supervisors and maintenance personnel. There should be no shortcomings in the safety performance of arch bridges in order to ensure that they can effectively bear the load within the set range. Arch bridge cracks and concrete failure are the most common problems of arch bridges. At present, walking devices are mainly used to carry inspection personnel or inspection devices to perform detailed inspections on the bottom of the arch bridge. [0003] However, there are many problems in the existing walking devices. The following describes the existing walking devices. [0004] The first is the rubber wheel clamp rail type walking device, which mainly relies on the friction between the rubber wheel and the guide rail to achieve driving. The driving force provided is far from enough. It is...

AI Technical Summary

Problems solved by technology

[0004] The first type is the rubber wheel clip rail type walking device, which mainly relies on the friction force between the rubber wheel and the guide rail to realize the driving, and the driving force provided is far from enough, and it is impossible to walk on the arch bridge with a large curvature, resulting in its Very narrow range of applications

[0005] The second is the hydraulic walking device, which uses the telescopic movement of the hydraulic cylinder to make the walking device walk. This method obviously requires a complex hydraulic mechanism to provide power for operation, thereby increasing the weight of the entire device and causing the walking process Becomes slow and unstable, greatly reducing the detection efficiency of arch bridges

[0006] The third type is the gear-type walking device, which adopts the transmission mode of gear and rack meshing. This kind of device requires high assembly requirements, increases costs, and is prone to jumping teeth, causing safety accidents

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