Crack cleaning device for highway bridge maintenance

Abstract

The invention relates to the technical field of bridge maintenance equipment, and discloses a crack cleaning device for highway bridge maintenance. The device comprises a support frame, support framesmounted on two sides of the upper end of the support frame, a water storage tank mounted between the support frames, a guide column mounted between the lower ends of the support frames, and guide blocks slidably arranged in the middles of two ends of the guide column; a fixed cylinder is installed in the middle of the lower end of the supporting frame, a lifting column is slidably arranged in thefixed cylinder, a cleaning wheel is installed in the middle of the bottom end of the lifting column, buffer frames are hinged to the middles of the two ends of the fixed cylinder, and connecting frames are hinged between the middles of the buffer frames and the guide blocks; buffer wheels are installed at the bottoms of the buffer frames, and spraying rings are installed outside the bottom of thefixed cylinder; the spraying rings are connected with a priming pump arranged at the bottom end in the water storage tank through a spraying pipe. According to the crack cleaning device, the verticalposition of the cleaning wheel can be adjusted in the rotating process, meanwhile, the cleaning wheel can be supported to a certain degree when cracks are cleaned, and the efficient cleaning requirements of the cracks with different depths are met.

Description

technical field [0001] The invention relates to the technical field of bridge maintenance equipment, in particular to a crack cleaning device for highway bridge maintenance. Background technique [0002] Crack cleaning devices are usually used for highway bridge maintenance, and the surface of the road is usually prone to cracks. The cracks on the surface of the road usually include the following reasons: 1. Cracks are generated by temperature changes. Due to the difference between the internal temperature and the surface temperature of the concrete, a large temperature difference is caused, especially for the large-volume concrete of the pier body, which causes the internal and external thermal expansion and contraction to be different, resulting in compressive stress inside the concrete. A certain amount of tensile stress is produced on the concrete surface, and when the tensile stress exceeds the ultimate tensile strength of the concrete, cracks appear on the concrete su...

AI Technical Summary

Problems solved by technology

For example: premature removal of the formwork, improper measures after the removal of the formwork cause the concrete to freeze or the surface to dehydrate and dry rapidly, or no measures are taken to make the temperature of the concrete surface and the temperature of the surrounding environment significantly different, etc.

[0003] When repairing cracks on the existing highway pavement, it is often necessary to clean up the impurities and dust in the cracks, and then repair them to ensure the strength of the repairs. However, cleaning cracks is usually done manually, which is less efficient and more costly.

Chinese patent (notification number: CN211522800U) discloses a crack cleaning device for highway bridge maintenance, including a cleaning box, the side of the cleaning box is provided with a sealed door, and the bottom of the cleaning box is sequentially arranged from left to right. Cleaning wheel, blowing hole and suction groove, the bottom surface of described cleaning box is provided with cleaning wheel groove, although this device can realize to a certain extent the effective cleaning of crack on the road bridge, but because the depth of crack is different, can cause The cleaning wheel does not effectively clean the cracks, therefore, further improvement is needed

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