CN2168090Y

CN2168090Y - Rotor-piston type concrete injection machine

Info

Publication number: CN2168090Y
Application number: CN 92232716
Authority: CN
Inventors: 罗朝庭; 柴永模; 陈永华
Original assignee: SOUTHWEST CHINA INST OF ACADEMY OF RAIWAY SCIENCE MINISTRY OF RAILWAYS
Current assignee: SOUTHWEST CHINA INST OF ACADEMY OF RAIWAY SCIENCE MINISTRY OF RAILWAYS
Priority date: 1992-09-11
Filing date: 1992-09-11
Publication date: 1994-06-08
Anticipated expiration: 2002-09-11

Abstract

The utility model relates to a concrete spraying device for the civil building. The utility model is characterized in that the interior of each material chamber of a rotor spraying machine is provided with a piston which can reciprocatingly move up and down; a roller on the lower end of the piston rolls on a cylindrical cam, and the cam is immobilized; the piston is forced to reciprocatingly move up and down by the rotation of the rotor, and accordingly, the material suction and feeding actions are completed. Simultaneously, each material chamber is forced to be cleaned, and the material chamber sticks no material at all; in addition, as the interior of the rotor body has no high-velocity airflow and releases no residual air, the dust concentration beside the machine is reduced; simultaneously, as the material flow is continuous, the concrete spraying quality is high; the utility model can be suitable for various spraying technologies.

Description

Rotor-piston type concrete injection machine

The utility model relates to a kind of civil construction concrete spraying equipment.

The patent No. is 87202033.9 Chinese patent, a kind of concrete sprayer with antiseized material rotor is disclosed, its rotor portion is formed with pressure ring three parts in fixing material chamber by the rotor body of metal casting with the material chamber that rubber or polyurethane die casting form, played the effect that reduces bonding to a certain extent, but, high-voltage high-speed airflow is by rotor material chamber, want the carry over befouling environment during discharging residual air inevitably, high velocity air has aggravated its wearing and tearing to the impact of rubber gasket sheet, makes its working life very short, simultaneously, the material chamber is discontinuous in the rotor body, the materials flow pulsation causes the injection resilience to increase the weight of, and influences jet quality.

The purpose of this utility model provides a kind of sizing not fully, and is free from environmental pollution, the concrete sprayer of long service life.

The purpose of this utility model is achieved in that

The utility model is a rotary piston formula structure, be provided with a piston in each material chamber of its rotor, piston-rod lower end is provided with roller, roller contacts with the cylindrical cam of its underpart, the piston bottom is full of rinse water, rotor top is communicated with feeding funnel and discharge nozzle, rotor rotation, and the piston in the rotor material chamber rotates thereupon, the roller of piston lower end rolls on fixing cylindrical cam, promote piston and pump in rotor material chamber, the piston stroking upward section is aimed at discharge nozzle, finishes the feeding action, the descent of piston section is aimed at feeding funnel, finish the suction action, for the translation seal section, make pressurized air can not enter material sucking area between up section and descending section.

The utlity model has following advantage:

1, owing to take mechanical piston force to clean the material chamber, and be full of rinse water in the piston bottom, the micronic dust of dissolving material chamber remained on surface is so can accomplish fully not sizing.

2, in the rotor body by high velocity air, do not have the discharging of residual air, sealing surface is leakiness dirt not also, has significantly reduced environmental pollution, simultaneously, has alleviated the wearing and tearing of sealing surface rubber plate, has improved working life.

3, because two material chamber dischargings are simultaneously arranged, materials flow is continuous, and pressurized air is pressed the wind pulsating movement free not by rotor body, therefore helps operation and reduces resilience, improves spray-layer quality.

4, can do, tide, wet various spraying operations, strengthened adaptability to various geological conditions.

Fig. 1 always schemes for structure of the present utility model

Fig. 2 is the sectional drawing along rotor centerline

Fig. 3 is the rotary piston unfolded drawing

Further narrate the utility model below in conjunction with accompanying drawing:

Motor 1 rotates by the piston 4 that retarder 2 drives in rotor 3 and the rotor material chamber, the roller of the lower end of piston 4 rolls on fixing cam 5, piston 4 pumps in rotor material chamber, the piston bottom is full of rinse water 6, up section aligning discharge nozzle 7 of piston 4, descending section aligning feeding funnel 8 of piston 4, concrete 9 enters in the rotor material chamber from feeding funnel 8, be transported to discharge nozzle 7 by rotor 3 and piston 4, be transported in the carrier pipe 11 by the high-pressure blast in the pressure ventilation pipe 10.

Claims

1, a kind of rotary piston formula concrete sprayer, form by motor, retarder, rotor, cam, feeding funnel, discharge nozzle, pressure ventilation pipe and carrier pipe, motor drives rotor rotation by retarder, it is characterized in that: be provided with a piston in each material chamber of its rotor, piston-rod lower end is provided with roller, roller contacts with the cylindrical cam that its underpart is fixed, the piston bottom is full of rinse water, the piston stroking upward section is aimed at discharge nozzle, the descent of piston section is aimed at feeding funnel, pressure ventilation pipe links to each other with discharge nozzle, and discharge nozzle links to each other with carrier pipe.