Multifunctional machine for spraying mine concrete

Abstract

The invention relates to a multifunctional machine for spraying mine concrete. The machine for spraying the mine concrete comprises a feed mechanism (1), a stirring mechanism (2), a material pushing mechanism (3) and a base plate (4); the feed mechanism (1) comprises a screen cover (1.1); the bottom of the screen cover (1.1) is provided with a screen (1.4); the stirring mechanism (2) comprises a stirring box (2.1); the material pushing mechanism (3) comprises a hopper (3.1); an S pipe valve system (3.2) is arranged in the hopper (3.1); two through holes of a glass plate (3.2.5) are connected with a material pushing power system (3.6) through a material poking pipe (3.4) respectively; and a piston (3.6.4) of the material pushing power system (3.6) is arranged in the material poking pipe (3.4), and a piston rod of a material pushing oil cylinder (3.6.1) is connected with the piston (3.6.4). Materials can drop automatically, concrete is stirred uniformly and the multifunctional machine for spraying the mine concrete simultaneously has a dry spay function and a wet spray function and a good spraying effect.

Description

technical field [0001] The invention relates to a jetting machine, in particular to a multifunctional jetting machine used for concrete jetting operation in a coal mine, and belongs to the technical field of mining machinery. Background technique [0002] At present, most coal mine roadways in China use dry spraying or tidal spraying when spraying concrete construction operations, that is, dry mortar is sprayed directly from the spraying machine or spraying spray is installed at the injection port of the spraying machine. The water device makes the dry mortar sprayed from the jetting machine wet with water. However, if this method is used for construction, the dry mortar and water will not mix uniformly, resulting in low strength of the concrete sprayed on the inner wall of the roadway and easy to fall off. The dust is relatively large, which seriously endangers the physical and mental health of coal miners; moreover, the original spraying machine only has the spraying funct...

AI Technical Summary

Problems solved by technology

[0002] At present, most coal mine roadways in China use dry spraying or tidal spraying when spraying concrete construction operations, that is, dry mortar is sprayed directly from the spraying machine or spraying spray is installed at the injection port of the spraying machine. The water device makes the dry mortar sprayed from the jetting machine wet with water. However, if this method is used for construction, the dry mortar and water will not mix uniformly, resulting in low strength of the concrete sprayed on the inner wall of the roadway and easy to fall off. The dust is relatively large, which seriously endangers the physical and mental health of coal miners; moreover, the original spraying machine only has the spraying function, and it needs to be equipped with mixers and other equipment to carry out the operation, and the operator needs to be on duty to add materials at regular intervals, which increases the cost of use ; Simultaneously, conventional injection machine is owing to be limited to the structure of its S pipe valve system, and function is single, as Chinese patent 200720063925.6 announces " a kind of connection structure of concrete pump S pipe valve drive shaft ", Chinese patent 01216244.2 announces " a kind of concrete Distributing valve" and the "S-pipe valve swing type oil cylinder driving structure" announced by Chinese patent 200910072232.7, both use the S-pipe valve system for material delivery operation, and their structures are: the upper end of the S-pipe is erected on the hopper or other corresponding container box On the wall, the lower end of the S tube fits with the spectacle plate inlaid on the corresponding box wall, the rotating shaft is connected with the S tube, and the rotating shaft is erected on the box wall through the bearing, wherein the S tube and the rotating shaft can be an integral structure, Use the power mechanism to drive the rotating shaft of the S tube, which can be driven by an electric motor or a hydraulic motor, or can be driven by two swing cylinders. When using the swing cylinder, a spline sleeve is placed on the end of the rotating shaft extending out of the box wall. The piston rods of the two symmetrically arranged swing cylinders are connected to the spline sleeves, which drive the S tube to move between the two holes of the spectacle plate. The two through holes on the spectacle plate are respectively connected to the feeding cylinder. It is equipped with a piston, which has a simple structure and is easy to use. The piston is used to provide the discharge power, resulting in poor dry spraying effect

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