A concrete sprayer accelerator adding device

Abstract

The utility model relates to the technical field of accelerator adding technology discloses a concrete spraying machine accelerator adding device, include: base and set up above base for storing material's material box, push material structure, push material structure includes auger, speed reducer motor, twisted -horn axle and push rod, auger and material box rotatory connection, auger drives through speed reducer motor, twisted -horn axle is connected with auger transmission, drives auger rotation through speed reducer motor, auger will enter the material in push -on box to one side extrusion push, material passes through the material pipe discharge of material box end portion, and auger can drive push rod reciprocation, through the push rod and the multiple vertical boards of push rod bottom rake plough in the powder of material box, restrain powder caking, guarantee the loose of powder, promote the mixture of powder and concrete, discharge through the mode of auger push material cooperation pipeline, material flow and the guidance are stronger, will not shield the feed inlet of sprayer.

Description

Technical Field

[0001] This utility model relates to the field of accelerator addition technology, and in particular to an accelerator addition device for a concrete spraying machine. Background Technology

[0002] Concrete spraying machines are widely used in engineering construction and tunnel engineering. When spraying concrete in shafts and tunnels, it is necessary to add accelerators to the mortar at the same time to achieve the purpose of rapid solidification of the poured surface. An additive device is required to add the accelerators in real time.

[0003] A search revealed a novel powdered quick-setting agent anti-clogging additive device for concrete spraying machines (publication number: CN211621591U), which includes a storage tank, a feed pipe, a placement trough, and a connecting pipe. A waterproof layer is fixedly installed on the side wall of the storage tank, and a drying layer is fixedly installed on the side wall of the inner cavity of the storage tank. The feed pipe is fixedly installed at the bottom of the storage tank, and a regulating valve is fixedly installed at the bottom of the inner cavity of the feed pipe.

[0004] Existing technologies mainly use vibrators to discharge materials, which requires the use of electrically controlled valves. Secondly, as the vibration discharge process progresses, the material in the hopper gradually becomes dense and compacted, which can easily cause uneven discharge and obstruction. Furthermore, the material can only be discharged a very limited distance due to the vibration discharge method. Therefore, the discharge port must be very close to the feed port of the spraying machine, which may block the feed port of the spraying machine. There is room for optimization.

[0005] Therefore, we propose a device for adding accelerator to a concrete spraying machine. Utility Model Content

[0006] The present invention mainly addresses the technical problems of powder easily caking and poor material discharge, and provides a device for adding accelerator to a concrete spraying machine.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: a concrete spraying machine accelerator additive device, comprising:

[0008] A base and a material bin disposed above the base for storing materials, the material bin being mounted above the base by a support structure;

[0009] A material pushing structure is installed inside the cavity of the material box for pushing materials. The material pushing structure includes an auger, a geared motor, a twisted shaft, and a push rod. The auger is rotatably connected to the material box and is driven by the geared motor. The twisted shaft is drively connected to the auger and can drive the push rod to move radially along the twisted shaft to plow the material in the material box.

[0010] In a preferred embodiment of this utility model, the material box includes a rectangular upper storage box, a cylindrical push box is fixedly installed at the bottom of the storage box, and a rectangular groove for discharging material is opened at the top of the push box.

[0011] In a preferred embodiment of this utility model, the geared motor is fixedly installed with the material box, and the auger is fixedly connected to the output shaft of the geared motor.

[0012] In a preferred embodiment of this utility model, the pusher structure further includes a spline sleeve and a pulley. The ends of the auger and the twisted shaft are fixedly mounted with the same pulley, and a belt is provided between the two pulleys. The spline sleeve is threadedly connected to the twisted shaft, and the push rod is fixedly connected to the spline sleeve.

[0013] In a preferred embodiment of this utility model, the pushing structure further includes a side rod and a guide rod. The side rod is fixedly connected to the spline sleeve, the guide rod is fixedly connected to the material box, and the side rod and the guide rod are slidably connected.

[0014] In a preferred embodiment of this utility model, the push rod is a rod with a T-shaped cross-section. The top end of the push rod is connected to a spline sleeve, and the bottom of the push rod is rotatably provided with several vertical plates. The multiple vertical plates form a comb-tooth structure to plow the material in the hopper.

[0015] In a preferred embodiment of this utility model, the support structure includes an elastic telescopic rod and a pressure sensor. Several pressure sensors are fixedly installed on the top of the base, and an elastic telescopic rod is provided on each pressure sensor. The material box is fixedly connected to the output shaft of the elastic telescopic rod.

[0016] Beneficial effects

[0017] This invention provides a device for adding accelerator to a concrete spraying machine. It has the following beneficial effects:

[0018] 1. This concrete spraying machine accelerator additive device uses a geared motor to drive an auger to rotate. The auger pushes the material entering the push box to one side, and the material is discharged through the material pipe at the end of the box. The auger can drive the push rod to reciprocate. The push rod and multiple vertical plates at the bottom of the push rod rake the powder in the box, inhibiting powder agglomeration and ensuring that the powder remains loose. On the one hand, it facilitates the powder to enter the push box from the rectangular groove, and on the other hand, it keeps the pushed powder loose, promoting the mixing of powder and concrete. The material is discharged through the auger push and the pipe, which has stronger material flow and guidance and will not block the feed inlet of the spraying machine.

[0019] 2. This concrete spraying machine accelerator additive device is connected to a push rod via multiple rectangular vertical plates. The top of the vertical plates is provided with a rotating shaft, and the bottom of the push rod is provided with a shaft hole. The rotating shaft is rotatably installed in the shaft hole. Through multiple rotatable vertical plates, when subjected to powder extrusion, the angle can be automatically flipped and adjusted according to the resistance received, thereby automatically adjusting the shearing effect of the vertical plates on the powder.

[0020] 3. This concrete spraying machine accelerator additive device uses an auger to drive the pulley at its end to rotate. The pulley drives another pulley and the twisted shaft to rotate synchronously, thereby driving the spline sleeve and enabling the push rod to reciprocate. The side rod slides along the guide rod to limit the spline sleeve, so that the spline sleeve can maintain stable linear movement without deviation. The push rod will not produce sway or shaking when raking the powder, thus ensuring the stability of operation. Attached Figure Description

[0021] Figure 1 This is one of the overall perspective views of this utility model;

[0022] Figure 2 This is the second overall perspective view of the present utility model;

[0023] Figure 3 This is a schematic diagram of the internal structure of the material box of this utility model;

[0024] Figure 4 This is a perspective view of the pusher structure of this utility model;

[0025] Figure 5 This is a perspective view of the push rod and vertical plate of this utility model.

[0026] Legend: 10. Base; 11. Material box; 12. Elastic telescopic rod; 13. Pressure sensor; 20. Screwdriver; 21. Gear motor; 22. Twisted shaft; 23. Push rod; 231. Vertical plate; 24. Spline sleeve; 25. Pulley; 26. Side rod; 27. Guide rod. Detailed Implementation

[0027] A device for adding accelerator to a concrete spraying machine, such as Figure 1 and Figure 2 As shown, it includes:

[0028] The base 10 and the material box 11 disposed above the base 10 for storing materials are provided. The material box 11 is installed above the base 10 by a support structure, which includes an elastic telescopic rod 12 and a pressure sensor 13. Several pressure sensors 13 are fixedly installed on the top of the base 10. Each pressure sensor 13 is provided with an elastic telescopic rod 12. The material box 11 is fixedly connected to the output shaft of the elastic telescopic rod 12. The material box 11 includes a rectangular upper storage box. A cylindrical push box is fixedly installed at the bottom of the storage box. A rectangular groove for discharging materials is opened on the top of the push box.

[0029] In this solution, the pressure sensor 13 needs to be connected to the PLC controller. The pressure sensor 13 measures the total weight of the material bin 11 and the materials stored inside. The weight of the discharged material is obtained by comparing the weight before discharge with the weight after discharge, so as to achieve quantitative addition and ensure the accuracy of addition.

[0030] like Figure 3 , Figure 4 and Figure 5 As shown, the material pushing structure is set in the cavity of the material box 11 for pushing materials. The material pushing structure includes an auger 20, a reduction motor 21, a twisted shaft 22, and a push rod 23. The auger 20 is rotatably connected to the material box 11 and is driven by the reduction motor 21. The twisted shaft 22 is drively connected to the auger 20 and can drive the push rod 23 to move radially along the twisted shaft 22 to plow the material in the material box 11. The reduction motor 21 is fixedly installed in the material box 11, and the auger 20 is fixedly connected to the output shaft of the reduction motor 21. The push rod 23 is a rod with a T-shaped cross section. The top of the push rod 23 is connected to the spline sleeve 24, and the bottom of the push rod 23 is rotatably provided with several vertical plates 231. The multiple vertical plates 231 form a comb structure to plow the material in the material box 11.

[0031] In this scheme, the auger 20 is driven to rotate by the geared motor 21. The auger 20 pushes the material entering the push box to one side. The material is discharged through the material pipe at the end of the material box 11. The auger 20 can drive the push rod 23 to reciprocate. The push rod 23 and the multiple vertical plates 231 at the bottom of the push rod 23 rake the powder in the material box 11 to suppress powder agglomeration and ensure that the powder remains loose. On the one hand, it is convenient for the powder to enter the push box from the rectangular groove. On the other hand, it keeps the pushed powder loose and promotes the mixing of powder and concrete.

[0032] Multiple rectangular vertical plates 231 are connected to the push rod 23. The top of the vertical plate 231 is provided with a rotating shaft, and the bottom of the push rod 23 is provided with a shaft hole. The rotating shaft is rotatably set in the shaft hole. Through multiple rotatable vertical plates 231, when subjected to powder extrusion, the angle can be automatically flipped and adjusted according to the magnitude of the resistance, so that the shearing effect of the vertical plate 231 on the powder can be automatically adjusted.

[0033] like Figure 4 As shown, the pusher structure also includes a spline sleeve 24 and a pulley 25. The ends of the auger 20 and the twisted shaft 22 are both fixedly equipped with the same pulley 25. A belt is provided between the two pulleys 25. The spline sleeve 24 is threadedly connected to the twisted shaft 22. The push rod 23 is fixedly connected to the spline sleeve 24. The auger 20 drives the pulley 25 at its end to rotate. The pulley 25 drives the other pulley 25 and the twisted shaft 22 to rotate synchronously, thereby driving the spline sleeve 24 and thus enabling the push rod 23 to reciprocate.

[0034] like Figure 4 As shown, the pushing structure also includes a side rod 26 and a guide rod 27. The side rod 26 is fixedly connected to the spline sleeve 24, and the guide rod 27 is fixedly connected to the material box 11. The side rod 26 and the guide rod 27 are slidably connected. The guide rod 27 is a round rod, and the side rod 26 has a through hole. The side rod 26 slides along the guide rod 27 to limit the spline sleeve 24, so that the spline sleeve 24 can maintain stable linear movement without deviating. The push rod 23 will not produce swing or shaking when raking the powder, and the stability of operation is guaranteed.

[0035] The working principle of this utility model is as follows: The base 10 is provided with mounting holes for installation. The base can be fixed to the spraying machine by screws. The reduction motor 21 is connected to the controller by electrical signal. The total weight of the material box 11 and the material stored inside is measured by the pressure sensor 13. The weight of the discharged material is obtained by comparing the weight before discharge with the weight before discharge, thus realizing quantitative addition. The reduction motor 21 drives the auger 20 to rotate. The auger 20 pushes the material entering the push box to one side. The material is discharged through the material pipe at the end of the material box 11. The auger 20 can drive the push rod 23 to reciprocate. The auger 20 drives the pulley 25 at its end to rotate. The pulley 25 drives another pulley 25 and the twisted shaft 22 to rotate synchronously, thereby driving the spline sleeve 24. The side rod 26 moves along... The guide rod 27 slides to limit the spline sleeve 24, so that the spline sleeve 24 can maintain stable linear movement without deviation. The spline sleeve 24 drives the push rod 23 to move. The push rod 23 and the multiple vertical plates 231 at the bottom of the push rod 23 rake the powder in the material box 11 to suppress powder agglomeration. The push rod 23 is connected to the multiple rectangular plate-shaped vertical plates 231. The top of the vertical plate 231 is provided with a rotating shaft, and the bottom of the push rod 23 is provided with a shaft hole. The rotating shaft is rotatably set in the shaft hole. Through the multiple rotatable vertical plates 231, when subjected to powder extrusion, they can automatically flip and adjust the angle according to the resistance. For the addition of concrete quick-setting agent during tunnel construction, it can ensure precise control of the addition amount. At the same time, the conveying distance of the discharged additive is controllable, ensuring the smooth progress of tunnel construction.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A concrete sprayer set accelerator adding device characterized by, include: A base (10) and a hopper (11) disposed above the base (10) for storing materials, the hopper (11) being mounted above the base (10) by a support structure; The material pushing structure is set in the cavity of the material box (11) for pushing materials. The material pushing structure includes an auger (20), a reduction motor (21), a twisted shaft (22) and a push rod (23). The auger (20) is rotatably connected to the material box (11) and is driven by the reduction motor (21). The twisted shaft (22) is drively connected to the auger (20) and can drive the push rod (23) to plow the material in the material box (11) along the radial displacement of the twisted shaft (22).

2. The concrete sprayer set accelerator adding device according to claim 1, characterized in that: The material bin (11) includes a rectangular upper storage bin, a cylindrical push box is fixedly installed at the bottom of the storage bin, and a rectangular groove for discharging material is opened at the top of the push box.

3. The concrete sprayer set accelerator adding device according to claim 1, characterized in that: The geared motor (21) is fixedly installed with the material box (11), and the auger (20) is fixedly connected to the output shaft of the geared motor (21).

4. The concrete sprayer set accelerator adding device according to claim 1, characterized in that: The pusher structure also includes a spline sleeve (24) and a pulley (25). The ends of the auger (20) and the twisted shaft (22) are fixedly installed with the same pulley (25). A belt is provided between the two pulleys (25). The spline sleeve (24) is threadedly connected to the twisted shaft (22). The push rod (23) is fixedly connected to the spline sleeve (24).

5. The concrete spraying machine accelerator additive device according to claim 1, characterized in that: The pushing structure also includes a side rod (26) and a guide rod (27). The side rod (26) is fixedly connected to the spline sleeve (24), the guide rod (27) is fixedly connected to the material box (11), and the side rod (26) and the guide rod (27) are slidably connected.

6. The concrete sprayer set accelerator adding device of claim 4, wherein: The push rod (23) is a rod with a T-shaped cross section. The top of the push rod (23) is connected to the spline sleeve (24). The bottom of the push rod (23) is rotatably provided with several vertical plates (231). The multiple vertical plates (231) form the material in the comb-tooth structure rake plow box (11).

7. The concrete sprayer set accelerator adding device of claim 1, wherein: The support structure includes an elastic telescopic rod (12) and a pressure sensor (13). Several pressure sensors (13) are fixedly installed on the top of the base (10). Each pressure sensor (13) is provided with an elastic telescopic rod (12). The material box (11) is fixedly connected to the output shaft of the elastic telescopic rod (12).

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