An external automatic sand feeding device suitable for water and sand channel test

Abstract

The utility model provides a kind of external automatic sand adding equipment suitable for water and sand water tank test, including carrying base, the warehouse body and drive control module being installed on carrying base;The middle part of the side wall of one side in the warehouse body is connected with guide plate, the space in the warehouse body is separated into upper material storage and lower discharge rolling bin by guide plate;Roller is provided in the discharge rolling bin, the side of the roller is provided with multiple triangular prisms along the axial direction;The first end of the guide plate is connected in the middle part of the side wall of one side in the warehouse body, and the second end of the guide plate is placed on triangular prism;The bottom of the discharge rolling bin is connected with sand discharge groove, and drive control module is used to drive roller rotation.The utility model uses external connection mode, and it is convenient to use and low in cost.

Description

Technical Field

[0001] This utility model relates to the field of sediment transport flume testing, specifically an external automatic sand-adding device suitable for water-sand flume testing. Background Technology

[0002] In river dynamics research, flume experiments are an important means of exploring sediment transport patterns and assessing river channel evolution trends. Sediment balance regulation (i.e., ensuring the amount of sediment added by the equipment matches the sediment transport rate in the flume) is crucial in flume experiments—it determines whether the experimental scenario can accurately reflect the balanced sediment transport state of a natural river channel, directly affecting the validity and accuracy of the experimental results.

[0003] Traditional sand-addition methods mainly include three categories: manual timed addition, gravity flow without power, and self-circulation of water and sand pipelines. While these methods can supply sand to the tank, they have limitations in terms of accuracy, efficiency, and cost. Manual timed addition relies entirely on manual labor, resulting in poor reliability and high effort consumption. Furthermore, its array-style sand-addition method cannot meet continuous sand supply requirements, making it impractical and limited in applicability. For gravity flow without power, the sand in the silo relies entirely on gravity for discharge. As the amount of sand in the silo decreases, the reduced gravity effect leads to a slower discharge rate, compromising stability. Additionally, since this method regulates the discharge rate by adjusting the opening of the discharge port, a small opening at low sand-addition levels can cause sand congestion, hindering smooth discharge. The self-circulation method for water and sand pipelines is costly and requires a large area to build. It mainly requires the installation of two self-circulation systems: one for water circulation and one for sediment circulation. Therefore, if this sand-adding method is applied to an existing water tank, the modification cost and construction difficulty are significantly higher. Utility Model Content

[0004] The purpose of this invention is to provide an external automatic sand-adding device suitable for water-sand flume tests, in order to overcome the shortcomings of the existing technology.

[0005] This utility model is achieved through the following technical solution: An external automatic sand-adding device suitable for water-sand flume tests includes a mounting base, a chamber mounted on the mounting base, and a drive control module. A guide plate is connected to the middle of one side wall of the chamber, and the space inside the chamber is divided into an upper material feeding chamber and a lower material discharging chamber by the guide plate. A roller is installed inside the material discharging chamber, and multiple triangular prisms are arranged axially on the side of the roller. The first end of the guide plate is connected to the middle of one side wall of the chamber, and the second end of the guide plate rests on the triangular prisms. A sand discharge trough is connected to the bottom of the material discharging chamber, and the drive control module is used to drive the roller to rotate.

[0006] Preferably, a leak-proof rubber column is provided on the side wall of the other side of the chamber, the leak-proof rubber column is opposite to the second end of the guide plate, and the side of the leak-proof rubber column is in contact with the triangular prism.

[0007] Preferably, one side of the triangular prism is fitted and connected to the side of the roller.

[0008] Preferably, multiple triangular prisms are evenly arranged on the side of the roller.

[0009] Preferably, a rotating shaft runs through the center of the roller, and a coupling is connected to the input end of the rotating shaft; the drive control module includes a drive motor, and the drive shaft of the drive motor is connected to the coupling.

[0010] Furthermore, the drive control module also includes a reducer, the input end of which is connected to the drive shaft, and the reduction shaft of the reducer is connected to a coupling.

[0011] Furthermore, the drive control module also includes a speed regulator, which is used to adjust the speed of the drive motor.

[0012] Furthermore, the drive control module also includes a power adapter, which is electrically connected to both the drive motor and the speed controller.

[0013] Furthermore, the drive control module also includes a control box; the speed regulator and power adapter are housed inside the control box.

[0014] Preferably, the baffles on both sides of the sand discharge trough are tapered inward.

[0015] Compared with the prior art, the present invention has the following beneficial effects: This utility model relates to an externally connected automatic sand-adding device. First, sand is added to the storage hopper. Then, the roller rotates, and the sand slides down the guide plate to the inlet of the discharge hopper. As the roller rotates, its triangular prisms push the sand downwards, finally entering the water tank through the discharge chute, thus achieving automatic and continuous sand addition. This utility model uses an external connection, eliminating the need to damage or disassemble the original water tank system. It can be directly mounted above the water tank, making it convenient and cost-effective. The guide plate above the discharge hopper prevents natural leakage of sand from the storage hopper.

[0016] Furthermore, this invention incorporates leak-proof rubber columns. Both the guide plate and the leak-proof rubber columns are in contact with the triangular prism, thereby preventing mud and sand in the material storage bin from naturally leaking down along the gap between the triangular prism and the other side wall of the bin when the roller stops rotating. In addition, the elastic properties of the leak-proof rubber columns can prevent the material discharge bin from jamming when mud and sand become congested.

[0017] Furthermore, one side of the triangular prism is fitted and connected to the side of the roller, so that only one edge of the triangular prism faces outward, which greatly reduces the rotational friction between the triangular prism and other contacting parts when the roller rotates, thereby preventing jamming and ensuring the rotational speed. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a perspective view of the external automatic sand-adding device of this utility model.

[0020] Figure 2 This is a side sectional view of the external automatic sand-adding device of this utility model.

[0021] Figure 3 This is a structural diagram of the roller and triangular prism of this utility model.

[0022] Figure 4 This is a structural diagram of the speed reducer of this utility model.

[0023] Figure 5 This is a structural diagram of the drive motor of this utility model.

[0024] Figure 6 This is a structural diagram of the control box of this utility model.

[0025] Figure 7 This is a cross-sectional view of the control box of this utility model.

[0026] In the diagram: 1. Mounting base; 2. Material hopper; 3. Guide plate; 4. Leak-proof rubber column; 5. Discharge roller; 501. Roller; 502. Triangular prism; 503. Rotating shaft; 504. Coupling; 6. Sand discharge trough; 7. Reducer; 701. Reducer shaft; 8. Drive motor; 801. Drive shaft; 9. Control box; 10. Speed ​​controller; 1001. Speed ​​control knob; 11. Power adapter; 1101. Power switch; 1102. Input wire; 1103. Output wire. Detailed Implementation

[0027] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0028] It should be noted that the process equipment or apparatus not specifically mentioned in the following embodiments are all conventional equipment or apparatus in the art.

[0029] It should be noted that the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. The terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection or a detachable connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two elements.

[0030] like Figure 1 and Figure 2 As shown, the external automatic sand-adding device for water-sand flume testing of this utility model includes a mounting base 1, a hopper mounted on the mounting base 1, and a drive control module. A guide plate 3 is connected to the middle of one side wall of the hopper, and the space inside the hopper is divided into an upper material storage hopper 2 and a lower material discharge hopper 5 by the guide plate 3. A roller 501 is provided inside the material discharge hopper 5, and multiple triangular prisms 502 are arranged axially on the side of the roller 501. The first end of the guide plate 3 is connected to the middle of one side wall of the hopper, and the second end of the guide plate 3 rests on the triangular prisms 502. A sand discharge trough 6 is connected to the bottom of the material discharge hopper 5, and the drive control module is used to drive the roller 501 to rotate.

[0031] The mounting base 1 serves as the basic support structure for the entire equipment. It is typically made of sturdy and durable materials and has fixing holes at its four corners. It can be fixed to the upper edge of the water tank by screws, wires, or ropes to ensure the stability of the equipment during sand addition.

[0032] The silo is installed in the upper middle position of the mounting base 1. Its large volume can hold a lot of mud and sand, avoiding frequent sand replenishment.

[0033] The first end of the guide plate 3 is connected to the middle of one side of the bin, and the second end is a free end that rests on the triangular prism 502. That is, the guide plate 3 is arranged at an angle, which can efficiently guide the mud and sand into the discharge hopper 5. The bottom surface of the second end of the guide plate 3 is in contact with the triangular prism 502, which can prevent the mud and sand from naturally leaking down along that point when the sand adding equipment stops.

[0034] In operation, this equipment first adds sand into the storage bin, then drives the roller 501 to rotate. The sand then slides down the guide plate to the inlet of the discharge roller bin. As the roller 501 rotates, the triangular prism 502 on it pushes the sand downwards, finally entering the water tank through the discharge chute, thus achieving automatic continuous sand addition. This invention adopts an external connection method, eliminating the need to damage or disassemble the original water tank system. It can be directly mounted above the water tank, making it convenient and cost-effective. The guide plate above the discharge roller bin is arranged at an angle, which efficiently guides the sand into the discharge roller bin 5 while preventing natural leakage of sand from the storage bin.

[0035] In some embodiments of this utility model, a leak-proof rubber column 4 is provided on the side wall of the other side of the chamber, the leak-proof rubber column 4 is opposite to the second end of the guide plate 3, and the side of the leak-proof rubber column 4 is in contact with the triangular prism 502.

[0036] This invention incorporates a leak-proof rubber column 4. Both the guide plate 3 and the leak-proof rubber column 4 are in contact with the triangular prism 502, thereby preventing mud and sand in the material storage bin from naturally leaking down along the gap between the triangular prism 502 and the other side wall of the bin when the roller 501 stops rotating. Furthermore, the elastic properties of the leak-proof rubber column 4 prevent the material storage bin from jamming when mud and sand become trapped.

[0037] In some embodiments of this utility model, one side of the triangular prism 502 is fitted and connected to the side of the roller 501. Thus, only one edge of the triangular prism 502 faces outwards, greatly reducing the rotational friction between the triangular prism 502 and the guide plate 3 and the leak-proof rubber column 4 when the roller 501 rotates, thereby preventing jamming and ensuring rotational speed.

[0038] In some embodiments of this invention, multiple triangular prisms 502 are evenly arranged on the side of the roller 501. Two adjacent triangular prisms 502 constitute an independent feeding bin, so that the volume of each feeding bin is equal, thereby achieving uniform sand addition.

[0039] like Figure 3 As shown, in some embodiments of this utility model, a rotating shaft 503 passes through the center of the roller 501, and a coupling 504 is connected to the input end of the rotating shaft 503; the drive control module includes a drive motor 8, and the drive shaft 801 of the drive motor 8 is connected to the coupling 504. The structure of the drive motor 8 is as follows: Figure 5 As shown.

[0040] The rotating shaft 503 is firmly adhered to the inner wall of the drum 501 to prevent slippage. The drive motor 8, as the driving source for the rotation of the drum 501, is the power "heart" of the sand-adding equipment, ensuring its stable operation. The coupling 504 is connected to the input end of the rotating shaft 503 to transmit driving torque and drive the rotating shaft 503 to rotate.

[0041] In some embodiments of this utility model, the drive control module further includes a reducer 7, the input end of which is connected to a drive shaft 801, and the reduction shaft 701 of the reducer 7 is connected to a coupling 504. The structure of the reducer 7 is as follows: Figure 4 As shown.

[0042] The reducer 7 is installed on one side of the outside of the chamber. With the deceleration effect of the gear set inside the reducer 7, the speed transmitted from the drive motor 8 can be reduced, so that the speed range and sand discharge rate range of the drum 501 meet the common experimental requirements. On the other hand, with the force amplification effect of the gear set inside the reducer 7, the power transmitted from the drive motor 8 can be enhanced, thereby increasing the rotational torque of the drum 501 and avoiding the jamming phenomenon of the drum 501 when mud and sand are blocked.

[0043] In some embodiments of this utility model, the drive control module further includes a speed regulator 10, which is used to adjust the speed of the drive motor 8.

[0044] The speed controller 10 controls the rotational speed of the drive motor 8 by adjusting the voltage, thereby changing the sand discharge speed of the equipment to adapt to different sand discharge volume requirements.

[0045] In some embodiments of this utility model, the drive control module further includes a power adapter 11, which is electrically connected to both the drive motor 8 and the speed controller 10.

[0046] The power adapter 11, as a power receiving unit, converts 220 volts into the voltage required by the device. Figure 6 As shown, the power adapter 11 is equipped with a power switch 1101, an input line 1102, and an output line 1103; the power switch 1101 has two positions, on and off, to control the start and stop of the device; the end of the input line 1102 is a plug, which is connected to an external power source; the output line 1103 is connected to the drive motor 8 and the speed controller 10 respectively, to supply power to them.

[0047] In some embodiments of this utility model, such as Figure 7As shown, the drive control module further includes a control box 9; the speed regulator 10 is installed inside the control box 9 at the upper position, and it has a speed adjustment knob 1001, which controls the speed of the drive motor 8 by adjusting the voltage. The power adapter 11 is installed inside the control box 9 at the lower position.

[0048] The control box 9 is installed on the other side of the outside of the tank. The speed controller 10 and the power adapter 11 are integrated inside the control box 9, which can prevent sensitive and fragile components from being damaged by exposure to the external environment. Specifically, in the initial debugging stage of the water sand tank test, due to the unstable flow, water splashing often occurs. If water droplets splash onto the speed controller 10 or the power adapter 11, it can easily cause damage to the equipment.

[0049] In some embodiments of this utility model, the baffles on both sides of the sand discharge trough 6 are inwardly contracted, so that the mud and sand flow in an orderly manner according to the direction of the baffles, preventing the mud and sand from splashing everywhere when it is discharged.

[0050] The working principle of this utility model is as follows: In actual use, a certain amount of mud and sand is first added to the material storage bin 2; then the power switch 1101 is turned on to supply power to the drive motor 8, so that the drive shaft 801 can rotate, which in turn drives the reduction shaft 701 to rotate, and then through the torque transmission of the coupling 504, the rotating shaft 503 is caused to rotate, thereby driving the roller 501 to rotate; at this time, the mud and sand in the material storage bin 2 will slide down to the inlet of the discharge roller bin 5 through the guide plate 3. Since the bottom surface of the guide plate 3 and the surface of the leak-proof rubber column 4 are in close contact with the triangular prism 502, the mud and sand are prevented from leaking down along the contact position. The mud and sand can only fall into the discharge bin composed of adjacent triangular prisms 502, and enter the sand discharge trough 6 through the rotation of the roller 501, and finally be guided into the water tank, thereby realizing automatic continuous sand addition; during this period, the speed of the discharge roller bin 5 can be changed by adjusting the speed control knob 1001 to achieve different sand addition rates to adapt to different test requirements.

[0051] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An external automatic sand-adding device suitable for water-sand flume tests, characterized in that, The device includes a mounting base (1), a hopper mounted on the mounting base (1), and a drive control module. A guide plate (3) is connected to the middle of one side wall of the hopper. The space inside the hopper is divided by the guide plate (3) into an upper material storage hopper (2) and a lower material discharge hopper (5). A roller (501) is provided inside the material discharge hopper (5). Multiple triangular prisms (502) are arranged axially on the side of the roller (501). The first end of the guide plate (3) is connected to the middle of one side wall of the hopper, and the second end of the guide plate (3) rests on the triangular prisms (502). A sand discharge trough (6) is connected to the bottom of the material discharge hopper (5). The drive control module is used to drive the roller (501) to rotate.

2. The external automatic sand-adding device suitable for water-sand flume tests according to claim 1, characterized in that, A leak-proof rubber column (4) is provided on the side wall of the other side of the chamber. The leak-proof rubber column (4) is opposite to the second end of the guide plate (3), and the side of the leak-proof rubber column (4) is in contact with the triangular prism (502).

3. The external automatic sand-adding device suitable for water-sand flume tests according to claim 1, characterized in that, One side of the triangular prism (502) is attached to the side of the roller (501).

4. The external automatic sand-adding device suitable for water-sand flume tests according to claim 1, characterized in that, Multiple triangular prisms (502) are evenly arranged on the side of the roller (501).

5. An external automatic sand-adding device suitable for water-sand flume tests according to claim 1, characterized in that, A rotating shaft (503) runs through the center of the roller (501), and a coupling (504) is connected to the input end of the rotating shaft (503); the drive control module includes a drive motor (8), and the drive shaft (801) of the drive motor (8) is connected to the coupling (504).

6. An external automatic sand-adding device suitable for water-sand flume tests according to claim 5, characterized in that, The drive control module also includes a reducer (7), the input end of which is connected to the drive shaft (801), and the reduction shaft (701) of the reducer (7) is connected to the coupling (504).

7. An external automatic sand-adding device suitable for water-sand flume tests according to claim 5, characterized in that, The drive control module also includes a speed regulator (10), which is used to adjust the speed of the drive motor (8).

8. An external automatic sand-adding device suitable for water-sand flume tests according to claim 7, characterized in that, The drive control module also includes a power adapter (11), which is electrically connected to the drive motor (8) and the speed controller (10).

9. An external automatic sand-adding device suitable for water-sand flume tests according to claim 8, characterized in that, The drive control module also includes a control box (9); the speed regulator (10) and the power adapter (11) are housed inside the control box (9).

10. An external automatic sand-adding device suitable for water-sand flume tests according to claim 1, characterized in that, The baffles on both sides of the sand discharge trough (6) are inwardly contracted.

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