RU2663229C1 - Sluice ejector for shotcreting - Google Patents

Abstract

FIELD: construction.SUBSTANCE: invention relates to construction, namely to devices for ejection a mortar or a concrete mixture onto mold pallets, to form thin-walled structures, and can also be used for low-rise construction, for applying a mortar or concrete mixture on the finishing surfaces (external and internal parts of buildings and structures) in any coordinates. Sluice ejector for shotcreting includes: a body (sluice) including a shell, two sidewalls and additionally the base, which passes into the nozzle of the mixture to the sluice chamber; the shell has an open aperture along the rotor rotation path for ejection the mixture.EFFECT: technical result of the invention are: improvement of the device in order to increase productivity and continuity of the working cycle; the use of an electric drive (or another type of drive) and ensuring an ejection rate of the mixture of more than 80 meters per second; application of mixtures of different plasticity (rigidity) and their application to the treated surfaces in any coordinate.3 cl, 4 dwg

Description

The invention relates to construction, and in particular to devices for ejection of mortar or concrete mix on pallets of forms, for the formation of thin-walled structures, and can also be used in low-rise construction, for applying mortar or concrete mix to finishing surfaces (external and internal parts of buildings and structures ) in any coordinates.

A device is known "Impulse device for pneumatic concrete" (ru-patent.info/20/45-49/2046906.html, authors of the patent: Kukharev S.N. and others) for spraying concrete and use as in low-rise construction using shotcrete , and when applying coatings to the surface, including a cylindrical nozzle with a nozzle fixed in a material hose, through which concrete mixture is supplied from the concrete pump to the outlet. A cone-shaped divider is located along the axis of the nozzle body. Moreover, the divider and the diameter of the outlet are selected so that the area of the bore of the outlet was equal to or greater than the area of the bore of the material hose. The disadvantage of this device is the possibility of partial clogging of the nozzle, significant air consumption and the lack of supply of the mixture to the surface in portions, as well as the high material consumption of the installation.

A device is known "Gateway feeder" (RF patent 2209172, B65G 65/48, publ. 07/27/2003. Authors: Tishaninov NP and others), containing a housing with inlet and outlet pipes; a rotor with blades fixed tangentially to its surface and forming inter-blade volumes. The blades are fixed at a distance from the axis of rotation greater than half the width of the inlet pipe. The bottom wall of the exhaust pipe is tangent to the surface of the housing. The disadvantage of this feeder is that the material moves by the blades and leaves the feeder under the action of gravitational forces, a large material consumption of the device.

The closest analogue to the invention is the well-known device “Hand Sprayer (FUR)” Ruhopper.ru (https://www.youtube.com/-watch?v=lGJe9kutRmY), including a housing (volume tank, for building mix) with a top handle for holding and lateral for rotation of the inner rotor with spring plates located at intervals along the length and circumference of the rotor. A support rod is located along the rotation path of the plates, which controls the force of elastic deformation of the plates. The housing has an opening located in the direction of rotation for loading and ejecting the mixture. The disadvantages of such a device are: low productivity and discharge rate of the mixture; dependence of the continuity of the working cycle on the volume of the tank; the use of liquid mixtures and the possibility of applying them only on vertical surfaces; the presence of a manual drive; the presence of one opening for loading and discharging the mixture.

The technical result of the invention is: improving the device in order to increase productivity and continuity of the working cycle; the use of an electric drive (or another type of drive) and ensuring a mixture ejection rate of more than 80 meters per second; the use of mixtures of various ductility (stiffness) and its application to the treated surfaces in any coordinates.

The reasons that impede the achievement of the technical result are the following disadvantages of the closest analogue: manual drive, low productivity and the rate of discharge of the mixture; the need to use only liquid mixtures and the possibility of applying them on vertical surfaces; the presence of one opening for loading and discharging the mixture.

Signs of the closest analogue of the device that coincide with the essential features of the invention are: the presence of a housing with a built-in rotor with springy blades and a support rod for controlling the force of deformation of the blades.

An object of the invention is to improve the design of the device, which will eliminate the disadvantages of the analogue.

The problem is solved in that in a device comprising: a housing, an integrated rotor with springy blades and a support rod for controlling the force of deformation of the blades, according to the invention, the housing (sluice) includes a shell, two sidewalls and, additionally, a base that passes into the pipe for feeding the mixture into the lock chamber; the shell has an open opening in the direction of rotation of the rotor, which ensures the ejection of the mixture. On the side walls of the airlock are mounted supports for the shaft with a flange for connecting to the drive, a rotor with elastic metal (non-metallic) removable blades located around the circumference of the rotor and overlapping the airlock section is rigidly fixed to the shaft. A movable stop and an eccentric are fixed on the outside of the base to control the elastic deformation of the blades.

Between the totality of the essential features and the technical result of the invention achieved, there is a causal relationship: a housing (sluice) containing a shell, two sidewalls and, optionally, a base passing into the pipe for supplying the mixture to the lock chamber; the shell has an open opening in the direction of rotation of the rotor, which ensures the ejection of the mixture. On the side walls of the airlock are mounted supports for the shaft with a flange for connecting to the drive, a rotor with elastic metal (non-metallic) removable blades located around the circumference of the rotor and overlapping the airlock section is rigidly fixed to the shaft. A movable stop and an eccentric are fixed on the outside of the base to control the elastic deformation of the blades. Using all the essential features will allow you to get the described technical result.

The invention is illustrated by drawings, which do not cover the entire scope of this technical solution, but are only illustrative materials of a particular case of execution:

in FIG. 1 shows a lock catapult for gunning with a drive;

in FIG. 2 - airlock catapult for shotcreting, feeding the mixture into the airlock;

in FIG. 3 - a lock catapult for shotcrete, moving the mixture to the stop zone;

in FIG. 4 - lock catapult for shotcrete, catapulting the mixture from the lock chamber.

Lock catapult for shotcrete 1 contains: a shell 2, conjugated between two sidewalls 3, sidewalls 3 are fixed to the base 4, passing into the pipe 5; the sidewalls 3 have supports 6 for the shaft 7, the shaft 7 has a flange 8 for connecting the actuator 9 and a rigidly mounted rotor 10 with elastic removable blades 11 radially mounted on it, each blade 11 in cross section overlaps the lock chamber 12. The shell 2 is located between the sidewalls 3 and has an open opening 13 in the direction of rotation for catapulting the mixture 14. On the outer side of the base 4 there is a movable stop 15 with an eccentric 16, which controls the force of elastic deformation of the blade 11, the eccentric 16 is integral with the roller 17, on the shank of which th fixed helm of the eccentric 18.

The lock catapult for shotcrete 1 works as follows: when the shaft 7 rotates together with the rotor 10, the blade 11 cuts off the part of the mixture 14 that enters the lock chamber 12 through the pipe 5 and moves it to the stop zone 15. Having reached the stop 15, the blade 11 is elastically deformed ( bends) and, having passed the stop 15, by the force of elastic deformation the incoming mixture 14 catapults through the open opening 13 (along the rotation of the rotor) to the surface to be treated, with the further rotation of the rotor 10 the next blade 11 comes into operation, and the cycle repeats. Adjustment of the deformation force of the blade 11 is carried out by moving the stop 15 by the eccentric 16 through the roller 17 and the steering wheel of the eccentric 18.

For optimal operation of the sluice catapult, the performance of the mixture ejection should be greater than the productivity for feeding the mixture at least 10-15%.

The following can be used as a drive of a lock catapult: a manual power tool, a gear motor, or another type of drive that provides the necessary characteristics. The mixture can be supplied, for example, with a mortar pump. To expand the range of applications: several airlock catapults can be placed on the drive shaft.

Claims (3)

1. Lock catapult for shotcrete, comprising: a housing, a rotor with springy plates (blades) located along the length and circumference of the rotor; support rod, which regulates the force of elastic deformation of the blades, characterized in that the casing (lock) includes a shell, two sidewalls and, additionally, a base that passes into the pipe for supplying the mixture to the lock chamber; the shell has an open opening in the direction of rotation of the rotor to eject the mixture. 2. Sluice catapult for shotcrete according to claim 1, characterized in that on the sides of the airlock there are bearings for a shaft with a flange for connecting to the drive, a rotor with elastic metal or non-metal interchangeable blades located around the circumference of the rotor and overlapping the lock chamber section is rigidly fixed . 3. Lock catapult for shotcrete according to claim 1, characterized in that on the outer side of the base there is a movable stop and an eccentric for regulating the elastic deformation of the blades.

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