Device for arch bridge inspection

Abstract

The invention discloses a device for arch bridge inspection, which comprises a bridge inspection car, a first hoist, a second hoist, a first steel cable, a second steel cable, a walking track and guide wheels, wherein the hoists are respectively arranged at the two ends of a bridge arch, the two ends of the steel cables are respectively connected with the hoists and the bridge inspection car, the guide wheels are installed on the bridge arch, the steel cables are wound through the guide wheels, the walking track is laid on the bridge arch and the bridge inspection car moves along the walking track. When the bridge inspection car moves, the hoist at one end is started up to wind the steel cable to pull the bridge inspection car, the hoist at the other end synchronously rewinds the steel cable and therefore the bridge inspection car can move back and forth on the arch bridge. A potential energy attenuation device and a normally-closed mechanical brake are configured on each hoist. A manual mechanical brake is installed on the bridge inspection car. The device for arch bridge inspection has the advantages of larger load, longer traction distance at one time, rapid walking speed, simple structure, convenience in operation, high safety and reliability and low cost, and is suitable for all kinds of arch bridges.

Description

technical field [0001] The invention relates to a device for inspection of arch bridges. Background technique [0002] Bridge inspection includes daily inspection, regular inspection, and inspection during abnormal periods. It is the primary task of bridge operation and maintenance management. The purpose is to detect and diagnose the health status of bridges in time. In actual engineering, since many parts of the bridge are not easy to approach, it is necessary to use the inspection platform provided by the bridge inspection equipment to complete the inspection work. [0003] At present, arch bridges are widely used on highways and railways in my country. Due to the lack of advanced inspection and maintenance equipment, a large number of arch bridges have been in disrepair for a long time, and there have been various degrees of disease, which directly affects the service life of bridges and the safety of driving. inspection and maintenance equipment. [0004] At present, ...

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Problems solved by technology

[0003]At present, arch bridges are widely used on highways and railways in my country. Due to the lack of advanced inspection and maintenance equipment, a large number of arch bridges have been in disrepair for a long time, and various degrees of disease have appeared. Directly affect the service life of the bridge and the safety of driving, urgently need special inspection and maintenance equipment

[0004] At present, there are mainly the following types of inspection running mechanisms for arch bridges in engineering: one is to adopt the walking tile-type running mechanism, and the walking mechanism is used for walking. The mechanism holding tile device clamps the track to walk. This method can provide a small climbing load, and the structure is complex, the operation is difficult, and frequent operations are required when traveling, the failure rate is high, and the safety is low; the second is to use hydraulic cylinders to pull The stretch-type running mechanism, through the clamping mechanism to clamp the track and stretch the hydraulic cylinder, is suitable for the mechanism with a large load to crawl on the arch bridge, but this method also requires a hydraulic system to provide power, which increases the overall mechanism. The weight of the single operation is limited, and the walking is slow. For long-span arch bridges, multiple operations are required to complete the journey.

At present, arch bridges are widely used in railway and highway traffic, and because of the large slope of arch bridges, the requirements for inspection equipment are also higher. fast walking requirements

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