Automatic proportioning device for guniting trolley speed coagulant

Abstract

The utility model relates to the technical field of automatic proportioning devices, and discloses an automatic proportioning device for a guniting trolley speed coagulant, which comprises a slurry pipe and a proportioning pipe, the proportioning pipe is vertically arranged on the side edge of the slurry pipe, and a connecting rod is connected between the slurry pipe and the proportioning pipe. A first rotating rod and a second rotating rod are rotatably connected to the same height in the slurry pipe and the proportioning pipe through bearings, and the first rotating rod and the second rotating rod are located on the same straight line. According to the technical scheme, the first rotating rod with the first shifting plate and the second rotating rod with the second shifting plate are rotatably mounted in the slurry pipe and the proportioning pipe respectively and are in transmission connection through the transmission rod, and when the conveying speeds of cement slurry are different, the rotating speeds of the first rotating rod and the second rotating rod are synchronously changed; and the second rotating plate rotates to convey the accelerator downwards at the same speed as the cement paste, the problems of data delay and sensor faults do not exist in a pure mechanical structure, and it is ensured that the purpose of accurately achieving automatic proportioning is achieved.

Description

Technical Field

[0001] This utility model relates to the field of automatic proportioning device technology, specifically an automatic proportioning device for quick-setting agent of shotcrete trolley. Background Technology

[0002] A shotcrete trolley is a highly efficient concrete shotcrete equipment, mainly used for shotcrete construction in railway, highway tunnels, subways, mines, and other projects. It sprays concrete onto the surface that needs to be reinforced through a pumping system. It features high efficiency, precision, and flexibility, and can significantly improve construction efficiency and quality. It is an indispensable tool in modern construction. Adding a quick-setting agent to the concrete in the shotcrete trolley can accelerate the concrete setting process, shorten the initial setting time, improve construction efficiency, and at the same time reduce concrete rebound and spalling, ensuring the stability of the shotcrete layer and optimizing project quality. It is a key measure to ensure construction progress and shotcrete effect.

[0003] Existing technologies use sensors to detect slurry flow rate and control flow valves to automatically proportion the accelerator added to cement slurry. However, sensors, being circuit detection methods, suffer from high failure rates and data delays, which can affect the accuracy of the proportioning. Therefore, we propose an automatic accelerator proportioning device for shotcrete trolleys. Utility Model Content

[0004] The purpose of this invention is to provide an automatic proportioning device for accelerators on a shotcrete trolley. This device involves installing a rotatable first rotating rod with a first deflector plate and a second rotating rod with a second deflector plate in the slurry pipe and proportioning pipe, respectively. These two rotating rods are connected by a transmission rod. When the cement slurry conveying speed is different, the rotation speeds of the first and second rotating rods change synchronously, causing the second rotating rod to rotate and convey the accelerator downwards at the same speed as the cement slurry. This purely mechanical structure eliminates the problems of data delay and sensor malfunction, ensuring accurate automatic proportioning and solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic proportioning device for quick-setting agent on a shotcrete trolley, comprising a slurry pipe and a proportioning pipe, wherein the proportioning pipe is vertically placed on the side of the slurry pipe, and a connecting rod is connected between the slurry pipe and the proportioning pipe; a first rotating rod and a second rotating rod are rotatably connected at the same height inside the slurry pipe and the proportioning pipe via bearings, the first rotating rod and the second rotating rod are located on the same straight line, and the first rotating rod and the second rotating rod are connected by a transmission rod; a first rotating plate with its outer edge close to the inner wall of the slurry pipe is fixed on the outer ring of the first rotating rod, and a second rotating plate with its outer edge close to the inner wall of the proportioning pipe is fixed on the outer ring of the second rotating rod.

[0006] By adopting the above technical solution, the slurry pipe and the proportioning pipe are respectively connected to the cement slurry pumping pipe and the accelerator delivery pipe. When the cement slurry delivery speed is different, the first rotating plate will drive the first rotating rod to rotate at different speeds, and the second rotating rod and the second rotating plate will rotate synchronously, thereby achieving the purpose of delivering the accelerator downward at the same speed as the cement slurry.

[0007] Optionally, a rubber sheet is fixed to the edge of the second rotating plate, and the rubber sheet is in contact with the inner wall surface of the mixing tube.

[0008] By adopting the above technical solution, the second rotating plate and the inner wall of the proportioning tube have a good sealing effect under the action of the rubber sheet.

[0009] Optionally, a first flange is provided at the top of the slurry pipe, and the inner ring of the first flange is connected to the slurry pipe.

[0010] By adopting the above technical solution, the slurry pipe is connected to the cement pumping pipeline through the first flange.

[0011] Optionally, a second flange is provided at the top of the proportioning pipe, and the inner ring of the second flange is connected to the proportioning pipe.

[0012] By adopting the above technical solution, the proportioning pipe is connected to the accelerator delivery pipeline through the second flange.

[0013] Optionally, a valve is installed above the mixing pipe, and the valve is connected to the mixing pipe.

[0014] By adopting the above technical solution, the valve can be closed to seal the mixing pipe when not in use.

[0015] Optionally, multiple connecting rods are provided, and the multiple connecting rods are evenly connected between the slurry pipe and the proportioning pipe.

[0016] By adopting the above technical solution, multiple connecting rods achieve the purpose of stably fixing the proportioning pipe to the side of the slurry pipe.

[0017] Compared with the prior art, the beneficial effects of the technical solution of this application are as follows:

[0018] 1. The technical solution of this application places the proportioning pipe for conveying the accelerator on the side of the slurry pipe. A first rotating rod with a first deflector plate and a second rotating rod with a second deflector plate are installed in the slurry pipe and the proportioning pipe respectively. The two are connected by a transmission rod. When the conveying speed of the cement slurry is different, the rotation speed of the first rotating rod and the second rotating rod will also change synchronously, so that the second rotating plate rotates and conveys the accelerator downward at the same speed as the cement slurry. The purely mechanical structure does not have the problems of data delay and sensor failure, ensuring the accurate realization of the automatic proportioning purpose.

[0019] 2. The technical solution of this application improves the sealing effect between the second rotating plate and the inner wall of the proportioning tube by fixing a rubber sheet that is in contact with the inner wall of the proportioning tube on the outer ring of the second rotating plate. Attached Figure Description

[0020] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0021] Figure 1 This is a schematic diagram of the overall structure of the automatic proportioning device for the quick-setting agent of the shotcrete trolley of this utility model.

[0022] Figure 2 This is a schematic diagram of the cross-sectional structure of the slurry pipe and the proportioning pipe of the automatic proportioning device for quick-setting agent on the shotcrete trolley of this utility model.

[0023] In the diagram: 1. Slurry pipe; 11. First flange; 12. First rotating rod; 121. First rotating plate; 2. Proportioning pipe; 21. Second flange; 22. Second rotating rod; 221. Second rotating plate; 222. Rubber sheet; 23. Valve; 3. Transmission rod; 4. Bearing; 5. Connecting rod. Detailed Implementation

[0024] Please see Figure 1-2 This utility model provides a technical solution: an automatic proportioning device for quick-setting agent of shotcrete trolley, including a slurry pipe 1 and a proportioning pipe 2. A first flange 11 is provided at the top of the slurry pipe 1. The inner ring of the first flange 11 is connected to the slurry pipe 1. In use, the slurry pipe 1 is connected to the cement pump pipeline through the first flange 11. The cement slurry can finally be fed into the mixing device from the bottom through the slurry pipe 1.

[0025] The proportioning pipe 2 is vertically placed on the side of the slurry pipe 1. A connecting rod 5 is connected between the slurry pipe 1 and the proportioning pipe 2. Multiple connecting rods 5 are evenly connected between the slurry pipe 1 and the proportioning pipe 2 to achieve a firm fixation. A second flange 21 is provided at the top of the proportioning pipe 2. The inner ring of the second flange 21 is connected to the proportioning pipe 2, so that the proportioning pipe 2 is connected to the quick-setting agent conveying pipeline through the second flange 21. The quick-setting agent can be fed into the mixing device after passing through the proportioning pipe 2 to achieve the purpose of proportioning and mixing.

[0026] To achieve automatic proportioning via a purely mechanical structure, a first rotating rod 12 and a second rotating rod 22 are rotatably connected at the same height inside the slurry pipe 1 and the proportioning pipe 2 via bearings 4. The first rotating rod 12 and the second rotating rod 22 are located on the same straight line and are connected by a transmission rod 3. A first rotating plate 121 with its outer edge close to the inner wall of the slurry pipe 1 is fixed to the outer ring of the first rotating rod 12, and a second rotating plate 221 with its outer edge close to the inner wall of the proportioning pipe 2 is fixed to the outer ring of the second rotating rod 22. The shapes of the rotating plate 121 and the second rotating plate 221 are specially designed. When the cement slurry passes through the inside of the slurry pipe 1, the first rotating plate 121 drives the first rotating rod 12 to rotate in one direction, and the transmission rod 3 drives the second rotating rod 22 and the second rotating plate 221 to rotate. The rotation speed is synchronized with the cement slurry conveying speed. Therefore, the quick-setting agent can be conveyed downward through the second rotating plate 221, and its conveying speed can also be synchronized with the cement slurry conveying speed. Thus, the purpose of automatic proportioning can be achieved by using a purely mechanical structure.

[0027] A rubber sheet 222 is also fixed to the edge of the second rotating plate 221. The rubber sheet 222 is in contact with the inner wall surface of the mixing tube 2. The rubber sheet 222 improves the sealing effect between the second rotating plate 221 and the inner wall of the mixing tube 2. In addition, a valve 23 is installed above the mixing tube 2. The valve 23 is connected to the mixing tube 2. When not in use and restricted, the valve 23 can be closed to block the mixing tube 2.

[0028] In use, the cement slurry pumping pipeline is connected to the slurry pipe 1 via the first flange 11, while the accelerator delivery pipeline is connected to the proportioning pipe 2 via the second flange 21. When the cement slurry and accelerator are not being mixed, the valve 23 needs to be kept closed. When the cement slurry is delivered to the mixing equipment and mixed with the accelerator, the valve 23 is opened. The cement slurry passes through the slurry pipe 1 and impacts the first rotating plate 121, causing the first rotating rod 12 to rotate. This rotation is then driven by the transmission rod 3 to rotate the second rotating rod 22 located in the proportioning pipe 2, which in turn rotates the second deflector plate. When the second deflector plate rotates, the accelerator is discharged from below and mixed with the cement slurry in the mixing equipment. The faster the cement slurry is delivered, the faster the first rotating rod 12 and the second rotating rod 22 will rotate. This causes the rotation speed of the second rotating plate 221 to change synchronously with the rotation speed of the first rotating plate 121, ultimately achieving the goal of synchronizing the accelerator addition rate with the cement slurry delivery rate, thus achieving automatic proportioning.

Claims

1. A shot car accelerator automatic proportioning device, comprising a slurry pipe (1) and a proportioning pipe (2), characterized in that: The proportioning pipe (2) is vertically arranged at the side of the slurry pipe (1), and the connecting rod (5) is connected between the slurry pipe (1) and the proportioning pipe (2); The first rotating rod (12) and the second rotating rod (22) are rotatably connected at the same height in the slurry pipe (1) and the proportioning pipe (2) through the bearing (4), the first rotating rod (12) and the second rotating rod (22) are located on the same straight line, the first rotating rod (12) and the second rotating rod (22) are drivingly connected through the transmission rod (3), the outer ring of the first rotating rod (12) is fixedly connected with the first rotating plate (121) with the outer edge close to the inner wall of the slurry pipe (1), and the outer ring of the second rotating rod (22) is fixedly connected with the second rotating plate (221) with the outer edge close to the inner wall of the proportioning pipe (2).

2. The shotcrete trolley accelerator automatic proportioning device according to claim 1, characterized in that: The rubber sheet (222) is fixedly connected at the edge of the second rotating plate (221) and is in contact with the inner wall surface of the proportioning pipe (2).

3. The gunning trolley accelerator automatic proportioning device according to claim 1, characterized in that: The top of the slurry pipe (1) is provided with the first flange (11), and the inner ring of the first flange (11) is in communication with the slurry pipe (1).

4. The gunning trolley accelerator automatic proportioning device according to claim 1, characterized in that: The top of the proportioning pipe (2) is provided with the second flange (21), and the inner ring of the second flange (21) is in communication with the proportioning pipe (2).

5. The gunning trolley accelerator automatic proportioning device according to claim 1, characterized in that: The valve (23) is installed above the proportioning pipe (2) and is in communication with the proportioning pipe (2).

6. The gunning trolley accelerator automatic proportioning device according to claim 1, characterized in that: The connecting rod (5) is provided with a plurality of connecting rods (5) which are uniformly connected between the slurry pipe (1) and the proportioning pipe (2).

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