Power drive apparatus for concrete wet sprayer and concrete wet sprayer

Abstract

The invention relates to the technical field of concrete spraying and provides a power-driven device for a concrete wet spraying machine. The power-driven device for the concrete wet spraying machine is used for driving a work system and a running system, and comprises a motor, an engine, a hydraulic oil tank, a first four-link pump package, a second four-link pump package and a changeover valve.The power-driven device for the concrete wet spraying machine adopts the motor and the engine for double-power drive; when the concrete wet spraying machine is operated in a tunnel, the motor can be adopted for driving the work system to operate, thereby reducing emission of exhaust gas such as carbon dioxide and so on and reducing the harm of the exhaust gas on the body health of construction workers; under the condition of no power supplied, the concrete wet spraying machine can also adopt the diesel engine for driving the work system to operate, thereby avoiding the influence of conditionssuch as power failure or inconvenient power access, etc. on the construction, so as to make the engineering construction smoothly performed under a plurality of operating conditions. The invention also provides the concrete wet spraying machine.

Description

technical field [0001] The invention relates to the technical field of concrete spraying, in particular to a power drive device for a concrete spraying machine and a wet concrete spraying machine. Background technique [0002] Concrete wet spraying machine is a construction equipment widely used in hydropower tunnels, underground powerhouses, subway engineering, railway tunnels, geotechnical engineering, military underground engineering and highway engineering. The wet concrete spraying machine uses hydraulic pressure or compressed air to transport the ready-mixed mixture to the nozzle through the pipeline, and sprays it at a high speed to the sprayed surface to condense and harden, thereby forming a concrete support layer. Shotcrete technology is widely used in various construction fields due to its simple process and economical cost. [0003] In the prior art, the power drive devices of wet concrete spraying machines are all driven by a single power, usually driven by a s...

AI Technical Summary

Problems solved by technology

[0005] When the concrete wet spraying machine is driven by a single motor, the concrete wet spraying machine cannot work at all in the event of a power outage or in a place where it is not convenient to connect to electricity; when the concrete wet spraying machine is driven by a single diesel engine, the exhaust gas emission of the diesel engine is large , since the construction site of concrete wet spraying machine is usually in a small place such as an underground tunnel, the exhaust gas emitted by the diesel engine is usually unable to be discharged in time, which not only affects the construction, but also causes harm to the health of the construction workers

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