CN212250060U

CN212250060U - Concrete sprayer

Info

Publication number: CN212250060U
Application number: CN202021015145.6U
Authority: CN
Inventors: 杨国培
Original assignee: Chongqing Yujiao Heavy Industry Machinery Co ltd; Chongqing Vocational College of Transportation
Current assignee: Chongqing Yujiao Heavy Industry Machinery Co ltd; Chongqing Vocational College of Transportation
Priority date: 2020-06-04
Filing date: 2020-06-04
Publication date: 2020-12-29
Anticipated expiration: 2030-06-04

Abstract

The utility model discloses a concrete sprayer, including moving mechanism, install accelerator on moving mechanism and add mechanism and injection mechanism, install the rabbling mechanism on injection mechanism, install the feeding mechanism who adds the mechanism in accelerator and the mechanism of adding water of being connected with the rabbling mechanism, the rabbling mechanism is including stirring the chamber, install the drive arrangement in stirring chamber one side, be located the stirring intracavity and with the (mixing) shaft that the drive arrangement transmission is connected with install the epaxial stirring leaf of stirring, the (mixing) shaft includes first (mixing) shaft and the second (mixing) shaft that the interval set up from top to bottom, first (mixing) shaft and second (mixing) shaft are around being equipped with the stirring leaf along the equal spiral of its length direction, the rotation opposite direction of first (mixing) shaft and second (mixing). The utility model discloses a two screw feeder helical blade centering designs, and the material moves to the intermediate position simultaneously from the both ends in stirring chamber under the drive of stirring leaf, and the material is rapid homogeneous mixing under the effect of circulation stirring, and the concrete homogeneity degree that finally forms is good, intensity is high.

Description

Concrete sprayer

Technical Field

The utility model relates to a concrete machining technical field, concretely relates to concrete sprayer.

Background

A concrete sprayer is a machine that continuously conveys concrete along a pipe by using compressed air and sprays the concrete onto a construction surface. The dry jet machine is a dry jet machine and a wet jet machine, wherein the dry jet machine is used for pneumatically conveying dry mixing materials, and the dry mixing materials are mixed with pressure water at a nozzle and then are jetted; the latter is sprayed out by a pneumatic or concrete pump conveying concrete mixture through a nozzle. The method is widely applied to lining construction of underground engineering, roadways, tunnels, culverts and the like.

The existing underground coal mine concrete spraying process is to separate or stir sand and stone materials and cement and then send the mixture to a grout spraying surface by a mine car. The spraying mainly comprises two working modes, one mode is dry spraying, namely concrete is directly and manually loaded into a hopper of a shotcrete machine and is directly sprayed by the shotcrete machine; the other is wet spraying, namely, a drum type or spiral type mining concrete mixer is adopted to mix and stir the concrete on site to enable the concrete to be wet materials, then an underground concrete sprayer is moved to the side of the concrete mixer, the wet materials in the concrete mixer are conveyed to the underground concrete sprayer, and the concrete sprayer sprays the wet materials. The wet spraying process has the problems that most of the existing concrete spraying machines are short in stirring time, materials are conveyed to a spraying mechanism in the stirring process, the uniformity of the mixed materials is very low, the sufficient mixing is not achieved, the mixing proportion cannot be controlled, and the like, so that the quality of concrete finished products and the operation effect are influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a concrete sprayer improves the degree of consistency that the material mixes, guarantees the off-the-shelf quality of concrete.

To achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides a concrete sprayer, including moving mechanism, install accelerator on the moving mechanism adds mechanism and injection mechanism, install the rabbling mechanism on the injection mechanism, install the feed mechanism on accelerator adds the mechanism and with the mechanism of adding water that the rabbling mechanism is connected, the rabbling mechanism includes the stirring chamber, install the drive arrangement in stirring chamber one side, be located in the stirring chamber and with the (mixing) shaft of drive arrangement transmission connection and install the stirring leaf on the (mixing) shaft, the (mixing) shaft includes first (mixing) shaft and the second (mixing) shaft that sets up at interval from top to bottom, first (mixing) shaft and second (mixing) shaft all spiral around being equipped with along its length direction the stirring leaf, the rotation direction of first (mixing) shaft with the second (mixing) shaft is opposite, be provided with on the stirring chamber with feed inlet that feed mechanism is connected and with the discharge gate that injection mechanism is connected, the driving device can simultaneously drive the first stirring shaft and the second stirring shaft to rotate so as to stir materials.

As a preferred scheme of concrete sprayer, the stirring leaf includes along first stirring leaf and the second stirring leaf that the length direction interval of first (mixing) shaft set up and follow the third stirring leaf and the fourth stirring leaf that the length direction interval of second (mixing) shaft set up, first stirring leaf with the second stirring leaf is followed respectively the both ends of first (mixing) shaft are followed its length direction and are wound along the middle part spiral, the spiral direction of first stirring leaf respectively with the spiral direction of second stirring leaf with the spiral direction of third stirring leaf is opposite, third stirring leaf with the fourth stirring leaf is followed respectively the both ends of second (mixing) shaft are followed along its length direction and are wound along the middle part spiral, the spiral direction of fourth stirring leaf with the spiral direction of third stirring leaf is opposite.

As a preferable scheme of the concrete sprayer, the driving device comprises a first driving motor and a second driving motor which are installed on the same side of the stirring cavity, the first driving motor is connected with the first stirring shaft, and the second driving motor is connected with the second stirring shaft.

As a preferable scheme of the concrete sprayer, the feeding hole comprises a first feeding hole and a second feeding hole which are adjacent to two ends of the stirring shaft and are arranged on the stirring cavity at intervals, and the first feeding hole and the second feeding hole are respectively connected with the feeding mechanism.

As a preferable scheme of the concrete sprayer, the feeding mechanism comprises a material tank mounted on the moving mechanism and a feeding pipeline communicated with the material tank, and one end of the feeding pipeline, which is far away from the material tank, is respectively communicated with the first feeding port and the second feeding port.

As a preferable scheme of the concrete sprayer, the spraying mechanism comprises a sprayer main body installed on the moving mechanism, a spraying pipe connected with the sprayer main body, and a spraying nozzle communicated with one end of the spraying pipe far away from the sprayer main body, a third feeding port is formed in the sprayer main body, and the third feeding port is communicated with a discharging port of the stirring cavity.

As a preferable scheme of the concrete spraying machine, the accelerator adding mechanism comprises an accelerator tank mounted on the moving mechanism, a pneumatic diaphragm pump connected with the accelerator tank, and a transmission pipeline connected with the pneumatic diaphragm pump, wherein one end of the transmission pipeline, which is far away from the pneumatic diaphragm pump, is communicated with the stirring cavity.

As a preferable scheme of the concrete sprayer, the water adding mechanism comprises a water inlet valve and a water inlet pipe connected with the water inlet valve, and one end, far away from the water inlet valve, of the water inlet pipe is communicated with the stirring cavity.

As a preferable mode of the concrete sprayer, the moving mechanism includes a frame and moving wheels installed below the frame.

The utility model has the advantages that: the utility model discloses a two screw feeder helical blade centering designs, in the stirring process, the material is under screw feeder helical blade's effect, move to the intermediate position in stirring chamber simultaneously from the both ends in stirring chamber, along with the moving mixing of circumferencial direction in the horizontal transport of axial, the three-dimensional circulation stirring of stirring intracavity has been realized, the material is at the shearing of stirring leaf, rub and the stirring effect quick homogeneous mixing down, effectively prevent the mixed material and produce the caking phenomenon, it freely falls to form vertical drop when certain height to pile up to the material in the middle of the stirring chamber, the concrete gets into the feed inlet of injection machine through the discharge gate in stirring chamber, then carry out corresponding injection construction by the injection machine, the concrete homogeneity degree of final formation is good, high strength, the off-the-shelf quality of concrete has been improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic cross-sectional view of a concrete sprayer according to an embodiment of the present invention.

Fig. 2 is a schematic cross-sectional view of an agitation mechanism according to an embodiment of the present invention.

In fig. 1 and 2:

1. a moving mechanism; 11. a frame; 12. a moving wheel;

2. an accelerator addition mechanism; 21. an accelerator box; 22. a pneumatic diaphragm pump; 23. a transport pipeline;

3. an injection mechanism; 31. an injector body; 32. an injection pipe; 33. a spray nozzle;

4. a stirring mechanism; 41. a stirring chamber; 42. a drive device; 421. a first drive motor; 422. a second drive motor; 43. a stirring shaft; 431. a first stirring shaft; 432. a second stirring shaft; 44. stirring blades; 441. a first stirring blade; 442. a second stirring blade; 443. a third stirring blade; 444. a fourth stirring blade;

5. a feeding mechanism; 51. a material box; 52. a feed line;

6. a water adding mechanism; 61. a water inlet valve; 62. and (4) a water inlet pipe.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are used only for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms will be understood by those skilled in the art according to the specific circumstances.

In the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" or the like, if appearing to indicate a connection relationship between the components, is to be understood broadly, for example, as being either a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other components or may be in an interactive relationship with one another. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 and fig. 2, the concrete spraying machine in the embodiment of the present invention includes a moving mechanism 1, an accelerator adding mechanism 2 and an injecting mechanism 3 installed on the moving mechanism 1, an agitating mechanism 4 installed on the injecting mechanism 3, a feeding mechanism 5 installed on the accelerator adding mechanism 2, and a water adding mechanism 6 connected to the agitating mechanism 4, the agitating mechanism 4 includes an agitating chamber 41, a driving device 42 installed on one side of the agitating chamber 41, an agitating shaft 43 located in the agitating chamber 41 and connected to the driving device 42 in a transmission manner, and an agitating blade 44 installed on the agitating shaft 43, the agitating shaft 43 includes a first agitating shaft 431 and a second agitating shaft 432 arranged at an interval from top to bottom, the first agitating shaft 431 and the second agitating shaft 432 are spirally wound with the agitating blade 44 along the length direction thereof, the rotation direction of the first agitating shaft 431 is opposite to that of the second agitating shaft 432, a feeding port connected to the feeding mechanism 5 and a discharging port connected to the injecting mechanism 3 are provided on the agitating chamber, the driving device 42 can simultaneously drive the first stirring shaft 431 and the second stirring shaft 432 to rotate so as to stir the materials.

Preferably, the stirring chamber 41 of the present embodiment is a conical structure, and the discharge hole is inclined downward, so as to facilitate the material to rapidly enter the injection mechanism 3 after the stirring of the material is completed.

When the concrete mixer is used, an operator only needs to put materials into the feeding mechanism 5, the concrete mixer sequentially enters the stirring mechanism 4 according to a preset proportion to be stirred, the accelerator adding mechanism 2 and the water adding mechanism 6 automatically add the accelerator and the water into the stirring cavity 41 according to a set value, the concrete after being stirred enters the spraying mechanism 3 to be sprayed, the feeding state is always kept in the running process, continuous spraying can be achieved, the production efficiency is improved, and the labor intensity of operators is reduced.

As a preferred embodiment of the present invention, the stirring blade 44 includes a first stirring blade 441 and a second stirring blade 442 spaced apart from each other along the length direction of the first stirring shaft 431, and a third stirring blade 443 and a fourth stirring blade 444 spaced apart from each other along the length direction of the second stirring shaft 432, the first stirring blade 441 and the second stirring blade 442 are respectively spirally wound from both ends of the first stirring shaft 431 toward the middle portion along the length direction thereof, the spiral direction of the first stirring blade 441 is respectively opposite to the spiral direction of the second stirring blade 442 and the spiral direction of the third stirring blade 443, the third stirring blade 443 and the fourth stirring blade 444 are respectively spirally wound from both ends of the second stirring shaft 432 toward the middle portion along the length direction thereof, and the spiral direction of the fourth stirring blade 444 is opposite to the spiral direction of the third stirring blade 443.

The embodiment adopts the centering design of the double-auger helical blades, in the stirring process, the materials move from the two ends of the stirring cavity 41 to the middle position of the stirring cavity 41 simultaneously under the action of the stirring blades 44, the stirring motion in the circumferential direction is accompanied while the materials are conveyed horizontally in the axial direction, the three-dimensional circulating stirring in the stirring cavity 41 is realized, the materials are quickly and uniformly mixed under the shearing, kneading and stirring actions of the stirring blades 44, the caking phenomenon of the mixed materials is effectively prevented, the materials in the middle of the stirring cavity 41 form longitudinal fall freely when stacked to a certain height, the concrete enters the feed inlet of the injection mechanism 3 through the discharge port of the stirring cavity 41, then the corresponding injection construction is carried out by the injection mechanism 3, the finally formed concrete has good homogeneity and high strength, and the quality of the concrete finished product is improved.

In this embodiment, the driving device 42 includes a first driving motor 421 and a second driving motor 422 installed on the same side of the stirring chamber 41, the first driving motor 421 is connected to the first stirring shaft 431, and the second driving motor 422 is connected to the second stirring shaft 432.

In this embodiment, the feeding holes include a first feeding hole and a second feeding hole which are adjacent to two ends of the stirring shaft 43 and are arranged on the stirring cavity 41 at intervals, the first feeding hole and the second feeding hole are respectively connected with the feeding mechanism 5, and the two feeding holes on the stirring cavity 41 can feed simultaneously, so that the feeding speed is increased, and the feeding time is saved.

In this embodiment, the feeding mechanism 5 includes a material tank 51 installed on the moving mechanism 1 and a feeding pipeline 52 communicated with the material tank 51, one end of the feeding pipeline 52 far from the material tank 51 is respectively communicated with the first feeding port and the second feeding port, wherein a corresponding power source device is installed in the material tank 51, and drives the material to enter the stirring cavity 41 through the feeding pipeline 52.

In this embodiment, the injection mechanism 3 includes an injector body 31 installed on the moving mechanism 1, an injection pipe 32 connected to the injector body 31, and an injection nozzle 33 communicated with an end of the injection pipe 32 far from the injector body 31, a third feeding port is opened on the injector body 31, the third feeding port is communicated with a discharge port of the mixing chamber 41, after concrete in the mixing chamber 41 is mixed, the concrete enters the injector body 31 through the third feeding port, a corresponding power source device is installed in the injector body 31, the concrete is pushed to be ejected from the injection nozzle 33 through the injection pipe 32, the injector body 31 always keeps a material during operation, and continuous injection can be realized.

In this embodiment, the accelerator adding mechanism 2 includes an accelerator tank 21 installed on the moving mechanism 1, a pneumatic diaphragm pump 22 connected to the accelerator tank 21, and a transmission pipeline 23 connected to the pneumatic diaphragm pump 22, wherein one end of the transmission pipeline 23 far from the pneumatic diaphragm pump 22 is communicated with the stirring cavity 41, the accelerator is stored in the accelerator tank 21, the accelerator is driven by the pneumatic diaphragm pump 22 to enter the stirring cavity 41 through the transmission pipeline 23, and the accelerator added to the concrete can accelerate the hydration and hardening of the concrete, so that the concrete forms sufficient strength in a short time to meet the requirements of special construction.

In the embodiment, the water adding mechanism 6 includes a water inlet valve 61 and a water inlet pipe 62 connected to the water inlet valve 61, and an end of the water inlet pipe 62 away from the water inlet valve 61 is communicated with the stirring chamber 41, wherein the water inlet valve 61 is controlled to open and close the water inlet.

In this embodiment, the moving mechanism 1 includes a frame 11 and moving wheels 12 installed below the frame 11 to facilitate the concrete sprayer to move to a construction site.

The whole device of the concrete sprayer of the embodiment is of a full-sealing structure, and the harm caused by the generation of a large amount of dust is effectively avoided.

It should be understood that the above-described embodiments are merely illustrative of the preferred embodiments of the present invention and the technical principles thereof. It will be understood by those skilled in the art that various modifications, equivalents, changes, and the like can be made to the present invention. However, these modifications are within the scope of the present invention as long as they do not depart from the spirit of the present invention. In addition, certain terms used in the specification and claims of the present application are not limiting, but are used merely for convenience of description.

Claims

1. The concrete sprayer is characterized by comprising a moving mechanism (1), an accelerating agent adding mechanism (2) and an injection mechanism (3) which are arranged on the moving mechanism (1), a stirring mechanism (4) arranged on the injection mechanism (3), a feeding mechanism (5) arranged on the accelerating agent adding mechanism (2) and a water adding mechanism (6) connected with the stirring mechanism (4), wherein the stirring mechanism (4) comprises a stirring cavity (41), a driving device (42) arranged on one side of the stirring cavity (41), a stirring shaft (43) positioned in the stirring cavity (41) and in transmission connection with the driving device (42) and a stirring blade (44) arranged on the stirring shaft (43), the stirring shaft (43) comprises a first stirring shaft (431) and a second stirring shaft (432) which are arranged at an upper interval and a lower interval, first (mixing) shaft (431) with second (mixing) shaft (432) are all spiral around being equipped with along its length direction stirring leaf (44), first (mixing) shaft (431) with the rotation direction of second (mixing) shaft (432) is opposite, be provided with on stirring chamber (41) with the feed inlet that feeding mechanism (5) are connected and with the discharge gate that injection mechanism (3) are connected, drive arrangement (42) can drive simultaneously first (mixing) shaft (431) with second (mixing) shaft (432) rotate with the stirring material.

2. The concrete sprayer according to claim 1, wherein the mixing blades (44) include first mixing blades (441) and second mixing blades (442) spaced apart in a longitudinal direction of the first mixing shaft (431), and third mixing blades (443) and fourth mixing blades (444) spaced apart in a longitudinal direction of the second mixing shaft (432), the first mixing blades (441) and the second mixing blades (442) being spirally wound from both ends of the first mixing shaft (431) toward a middle portion in the longitudinal direction thereof, respectively, the spiral direction of the first mixing blades (441) being opposite to the spiral direction of the second mixing blades (442) and the third mixing blades (443), the third mixing blades (443) and the fourth mixing blades (444) being spirally wound from both ends of the second mixing shaft (432) toward a middle portion in the longitudinal direction thereof, respectively, the spiral direction of the fourth stirring vane (444) is opposite to the spiral direction of the third stirring vane (443).

3. The concrete sprayer according to claim 1, characterized in that said drive means (42) comprise a first drive motor (421) and a second drive motor (422) mounted on the same side of said mixing chamber (41), said first drive motor (421) being connected to said first mixing shaft (431) and said second drive motor (422) being connected to said second mixing shaft (432).

4. The concrete sprayer according to claim 1, wherein the feed openings include a first feed opening and a second feed opening which are provided adjacent to both ends of the stirring shaft (43) and spaced apart from each other on the stirring chamber (41), and the first feed opening and the second feed opening are respectively connected to the feeding mechanism (5).

5. The concrete sprayer according to claim 4, characterized in that the feeding mechanism (5) comprises a material tank (51) mounted on the moving mechanism (1) and a feeding pipe (52) communicated with the material tank (51), and one end of the feeding pipe (52) far away from the material tank (51) is respectively communicated with the first feeding port and the second feeding port.

6. The concrete sprayer according to claim 1, wherein the spraying mechanism (3) comprises a sprayer body (31) mounted on the moving mechanism (1), a spraying pipe (32) connected with the sprayer body (31), and a spraying nozzle (33) communicated with one end of the spraying pipe (32) far away from the sprayer body (31), a third feeding port is formed in the sprayer body (31), and the third feeding port is communicated with a discharging port of the stirring cavity (41).

7. The concrete sprayer according to claim 1, characterized in that the accelerator adding mechanism (2) comprises an accelerator tank (21) mounted on the moving mechanism (1), an air operated diaphragm pump (22) connected with the accelerator tank (21), and a transmission pipeline (23) connected with the air operated diaphragm pump (22), wherein one end of the transmission pipeline (23) far away from the air operated diaphragm pump (22) is communicated with the stirring chamber (41).

8. The concrete sprayer according to claim 1, wherein the water feeding mechanism (6) comprises a water inlet valve (61) and a water inlet pipe (62) connected with the water inlet valve (61), and one end of the water inlet pipe (62) far away from the water inlet valve (61) is communicated with the stirring chamber (41).

9. The concrete sprayer according to claim 1, characterized in that said moving mechanism (1) comprises a carriage (11) and moving wheels (12) mounted below said carriage (11).