Intelligent tunnel second lining surface spraying maintenance trolley

Abstract

The invention discloses an intelligent tunnel second lining surface spraying maintenance trolley. The trolley comprises a load-bearing gantry, a walking device arranged at the bottom end of the load-bearing gantry, an arch ring spraying device arranged at the top of the load-bearing gantry and a control system for controlling the walking device and the arch ring spraying device; the walking devicecomprises walking beams, walking wheel boxes, walking wheels and a steering mechanism; the arch ring spraying device comprises a spraying mechanism arranged at the top of the load-bearing gantry anda water supply mechanism connected with the spraying mechanism; the control system comprises a steering mechanism control module for controlling the steering mechanism, an automatic spraying control module for controlling the spraying mechanism and an automatic water supply control module for controlling the water supply mechanism. According to the trolley, the center of the trolley and the centerof a tunnel can be restored to a coincident state, the accurate walking track of the trolley is ensured, the automatic control over the walking wheel boxes, the steering mechanism, the spraying mechanism and the water supply mechanism is achieved, and meanwhile the problems of on-site spraying water taking difficulty and poor spraying effect are solved.

Description

technical field [0001] The invention belongs to the technical field of tunnel engineering, and in particular relates to an intelligent tunnel second lining surface spray maintenance trolley. Background technique [0002] In tunnel engineering, after the concrete on the second lining is demoulded, it should be kept warm and moisturized in time. If the maintenance is not timely, the water in the concrete will evaporate, forming a dehydration phenomenon, which will make the formed gel cement particles unable to fully hydrate and transform into stable crystals. The cement particles lack sufficient adhesion, and the concrete surface will appear. Flaky and powdery detachment phenomenon. At the same time, the premature evaporation of water will cause shrinkage and deformation of the concrete, and shrinkage cracks will appear, which will affect the durability and integrity of the concrete. "Construction Technical Regulations for Railway Concrete Engineering" Q / CR 9207-2017 stipula...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an intelligent tunnel second-lined surface spray maintenance trolley in view of the deficiencies in the above-mentioned prior art, which has a simple structure and a reasonable design. When the phenomenon of deviation from the center of the tunnel, the steering mechanism can adjust the deflection direction of the wheel box, so that the center of the trolley and the center of the tunnel can be restored to the state of coincidence, ensuring the accurate walking track of the trolley, and realizing the steering mechanism of the wheel box, spraying The automatic control of the spraying mechanism and the water supply mechanism solves the problems of difficulty in getting spraying water and poor spraying effect at the same time

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