A bridge deck waterproof material spraying machine and spraying method

Abstract

The invention discloses a bridge deck waterproof material spraying machine and a spraying method. The bridge deck waterproof material spraying machine includes a walking frame, a spraying mechanism and a control mechanism arranged on the walking frame; the bridge deck spraying method includes steps : one, determine the distance between the first nozzle and the bridge deck, and determine the distance between the second nozzle and the bridge deck at the same time; two, judge whether the bridge deck waterproof material spraying machine is in the straight section of the bridge deck; three, the straight section of the bridge deck Spraying of waterproof materials; 4. Spraying of waterproof materials on the bridge deck of the curved section. In the present invention, by setting the telescopic spraying unit, the nozzle at the one end that is forced to be raised can be controlled to descend, and the nozzle at the end that is forced to be lowered can be controlled to rise when the equipment passes the curve section, so as to ensure that the paint sprayed by the nozzle can still cover the bridge deck that needs to be sprayed. In this way, the spraying quality of the waterproof coating on the bridge deck is maintained within the design range, and the automatic spraying of the waterproof coating on the straight and curved sections of the bridge deck is realized, and the use effect is good.

Description

technical field [0001] The invention belongs to the technical field of bridge deck waterproof material spraying, and in particular relates to a bridge deck waterproof material spraying machine and a spraying method. Background technique [0002] The waterproof layer of the ballastless track concrete bridge deck is a major link to improve the durability of the bridge. At present, the bridge deck thin-coated polyurethane waterproof layer protective layer system is mainly used. The application and promotion of the waterproof protective layer system greatly reduces the weight of the bridge body. At the same time, it simplifies the construction, reduces the difficulty of construction, improves the durability and aesthetic feeling of the concrete bridge deck, and promotes the application of new materials and new processes. [0003] The waterproof layer of ballastless track concrete bridge deck is generally sprayed by three layers: the primer coating for improving adhesion, the mid...

AI Technical Summary

Problems solved by technology

However, in the construction of the waterproof protective layer of high-speed rail, it is extremely expensive to spray the waterproof layer on the middle drainage part of the bridge beam surface between the two rows of base plates and the drainage parts on both sides of the bridge beam surface between the base plate and the anti-collision wall. Time-consuming work, and at the same time, it is necessary to ensure accurate spraying on both straight and curved bridge decks

In addition, due to the large width of the bridge deck, the existing spraying machines are relatively large in size. When maintaining the waterproof layer of the built bridge deck, the equipment can only be manually transported to the bridge deck, which is difficult to transport.

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