High-adaptability automatic crawling device for construction of outer protective layer of bridge steel cable

Abstract

The invention discloses a high-adaptability automatic crawling device for construction of an outer protective layer of a bridge steel cable. A crawling part is of a cylindrical structure and arranged on the outer side of an inhaul cable in a sleeving mode, and crawling along the inhaul cable can be achieved; a rotating part is of a cylindrical structure, arranged on the outer side of the inhaul cable in a sleeving mode and located below the crawling part; the top of a rotating part is rotationally connected with the bottom of the crawling part; and a driving part is installed on the outer side of the crawling part and used for achieving wriggling driving of the crawling part and rotating driving of the rotating part. The structural form that the crawling part and the rotating part are matched is adopted, crawling driving is conducted through the crawling part, the stability of crawling along the steel cable is guaranteed, the rotating part provides the rotating function, meanwhile, the guiding function is achieved, and the operation stabilizing effect is further improved; and the driving part is used for overall crawling and rotating driving, the structure is simple and reliable, and driving is convenient and stable.

Description

technical field [0001] The invention relates to the technical field of cable-stayed bridge fire prevention and fire protection, and more specifically relates to an adaptable automatic crawling device for the construction of the outer protective layer of bridge steel cables. Background technique [0002] Due to the low overall rigidity and high flexibility of the suspension bridge structure, its main load-bearing structure is the sling and the main cable, and the driving stability is poor. Once a fire accident occurs, when the main cable or sling is damaged by high temperature, the entire bridge will be in a In the state of paralysis, traffic operation will be seriously affected, and the repair of the suspension bridge is relatively difficult, and the repair time is relatively long, and the loss after the fire will be immeasurable. The mechanical properties of the main cables and suspension wires of suspension bridges are greatly affected by fire. The high-temperature temper...

AI Technical Summary

Problems solved by technology

However, the existing problem is that the construction of the fireproof layer on the cable involves the winding and gluing of the basalt fiber cloth layer, which requires manual high-altitude operations, and the existing cable crawling devices generally only can be automated Crawling is more of a machine based on the detection of existing steel cables. As long as it can crawl in a straight line, it can realize the load of the sensor and does not need to realize other functions.

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