Bridge maintenance overhead working equipment lifting device

Abstract

The invention discloses a bridge maintenance overhead working equipment lifting device, which comprises a frame, a frame walking trolley which is installed at the bottom of the frame, three steel suspension arms which are equidistantly arranged, a guide rope tightness adjusting mechanism which is arranged along the axes of the steel suspension arms, track longitudinal beams which are perpendicular to the three steel suspension arms and are detachably connected with the extension ends of the steel suspension arms, and overhead working equipment which is effectively connected with the track longitudinal beams. Through safe system conversion from a statically indeterminate structure with the three steel suspension arms to a statically determinate structure with two steel suspension arms, the lamp post passing device of the self-suspension mechanism of the bridge maintenance overhead working equipment can be enabled to safely and rapidly pass through columnar obstacles such as streetlamps by alternately disassembling and assembling one steel suspension arm under the on-load situation, the troubles in disassembling and assembling the equipment are avoided and the continuous operation is realized.

Description

technical field [0001] The invention relates to a hoisting device, which belongs to the technical field of hoisting machinery, and in particular to a hoisting device for bridge inspection and maintenance equipment for ascending heights. Background technique [0002] In the process of daily maintenance, or after a certain number of years of use, bridges need to be inspected and repaired, especially for reinforced concrete. Bridge maintenance often requires personnel to be safely delivered to the side and bottom of the bridge for physical inspection and structural maintenance. Generally, there is no special bridge inspection track car at the bottom of the bridge. At the same time, due to lighting or monitoring, obstacles such as street lamps and lampposts need to be installed on the guardrail of the bridge. Bridge inspection vehicles or hanging baskets are used for bridge inspection and maintenance, often passing through street lights. It takes a lot of time to transfer the eq...

AI Technical Summary

Problems solved by technology

When it is necessary to paint the box girder of the bridge, the construction period is short and the normal operation of the bridge is not affected, so the construction is very difficult

In order to meet the consideration of safe operation, and to improve the construction efficiency and meet the requirements of the construction period, the electric hanging basket construction plan is adopted. However, if the hanging basket is used to move the operation when passing the street lamp post, it will take 6 to 8 hours for the road to be closed for each disassembly and assembly. At the same time, it needs Two 50-ton tire cranes and a 40-meter-long flat-bed bulk carrier cooperated in the construction, which seriously affected road and water traffic, and the cost was high and it was almost impossible to implement

Images