Long-distance concrete sprayer

Abstract

The invention provides a long-distance concrete sprayer and relates to the technical field of concrete spraying equipment. The long-distance concrete sprayer comprises an underframe, a cylinder barrelmechanism, a rotor mechanism and a hydraulic system. The cylinder barrel mechanism comprises an upper cylinder barrel part and a lower cylinder barrel part. The cylinder barrel, a pushing piston, a sealing piston and a sealing box body of the sealing piston are matched one another, the sealing piston and the cylinder barrel form an end surface seal and a material collecting box is arranged on theend part of the lower cylinder barrel for collecting excess materials accumulated by the pushing piston. The rotor mechanism primarily comprises a rotor shell, a rotor and a cone-shaped distributor,and in a rotating process of the rotor, materials in stock bins are sprayed continuously. The hydraulic system comprises a hydraulic fuel tank and a motor and provides power to the sprayer. The sprayer in a form of end surface seal avoids friction between the sealing part and concrete and the cylinder barrel. The pushing piston can be a rigid piston which achieves sealing by means of the sealing piston. The rotor mechanism distributes the concrete uniformly to achieve pulse-free continuous spraying. The long-distance concrete sprayer also has the advantages of long-distance dust-free conveyance, being in long in service life and the like.

Description

technical field [0001] The invention relates to the technical field of concrete spraying equipment, in particular to a long-distance concrete spraying machine. Background technique [0002] In the process of coal mine roadway construction and highway and railway tunnel construction, concrete sprayers are inseparable. Currently, the commonly used concrete sprayers on the market mainly include rotor type, push chain type, pumping type, etc. Among them, the pumping type concrete spraying machine can only For wet spraying, the equipment is large in size, complicated to clean and maintain, and is less and less used; dry spraying and tidal spraying equipment such as rotor type and push chain type have problems such as large dust, short conveying distance, and fast wear of seals, so it is necessary to provide A concrete shotcrete machine with small size, small amount of dust and long conveying distance. [0003] In addition, in the existing concrete injection machine mechanism, th...

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Problems solved by technology

[0004] In order to solve the problems of large dust, short conveying distance caused by insufficient sealing, and wear caused by friction between the seal and the cylinder and concrete during the concrete spraying process, the invention provides a long-distance concrete spraying machine, the specific technical solution is as follows

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