Double-power-driven system for concrete wet-spray platform vehicle and concrete wet-spray platform vehicle

Abstract

The invention relates to the technical field of wet spray of concrete, and provides a double-power-driven system for a concrete wet-spray platform vehicle, which uses a series of pump sets of a diesel engine or motor-driven hydraulic system at different times and is used for driving an operating mechanism and a traveling mechanism at different times. The system comprises a diesel engine, a clutch, a gearbox, a double-shaft extension motor, a four-linkage pump set, changeover valves and an oil tank. According to the concrete wet-spray platform vehicle, the traveling mechanism can be driven to enter a tunnel and other construction fields by the diesel engine, the operating mechanism can be driven to operate or the traveling mechanism can be driven to move within a short distance through the motor after the platform vehicle reaches a construction site in place, and the motor can be switched into the diesel engine to drive the platform vehicle to operate continuously or move out of the construction site once electric power fails, so that harmful influences of the electric power on a construction process are prevented. Compared with the conventional driven system, the double-power-driven system has the advantages of simple system composition, simple hydraulic system, low manufacturing cost and high economy. The invention also provides the concrete wet-spray platform vehicle.

Description

technical field [0001] The invention relates to the technical field of concrete wet spraying, in particular to a dual power drive system for a concrete wet spraying trolley and the concrete wet spraying trolley. Background technique [0002] Concrete wet spray trolley is a kind of mechanical construction equipment widely used in tunnels, road slope protection, building foundation pits, geotechnical engineering, underground engineering and other fields. The concrete wet spraying trolley uses hydraulic pressure to transport the mixed concrete to the nozzle through the pipeline, and uses compressed air to spray the concrete at high speed, thereby forming a concrete support layer on the sprayed surface. Because concrete wet spraying technology has the advantages of saving materials, saving labor, improving construction quality and efficiency, and ensuring the safety of construction personnel, the application of concrete wet spraying trolleys is becoming more and more common. ...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the concrete wet spraying trolley adopting the dual power drive system is driven by a motor and a diesel engine respectively to drive a series of pump sets, and then drives the working mechanism and the actuator of the traveling mechanism. The concrete wet spraying trolley of the above dual power drive system , there are two series of pumps in the hydraulic system, the hydraulic system is huge, complex, with high failure rate and high cost

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