An ultrasonic flowmeter transducer for open channels

Abstract

The utility model relates to the technical field of cleaning device, concretely relates to a kind of silt removal device of ultrasonic flowmeter transducer for open channel, including base, mobile frame is movably arranged on base, and walking motor is installed at the top of mobile frame, and mobile transmission assembly is installed between mobile frame and base, and walking motor moves mobile frame along the length direction of base by mobile transmission assembly;Rotary motor is installed at the top of mobile frame, and rotating brush is rotatably installed at the bottom of mobile frame, and rotary motor is connected with rotating brush by flexible transmission assembly, and rotary motor can drive rotating brush to rotate.The utility model can carry out silt removal operation to transducer and the area around transducer, without additional complex underwater installation and high silt removal efficiency, greatly improve the practicality and convenience of silt removal device, effectively solve the problem that manual cleaning is labor-intensive, cost is high, and efficiency is low.

Description

Technical Field

[0001] This utility model relates to the field of cleaning device technology, specifically to a dredging device for an ultrasonic flow meter transducer used in open channels. Background Technology

[0002] An ultrasonic flow meter is a type of flow meter developed based on the principle that the propagation speed of ultrasonic waves in a flowing medium is equal to the vector sum of the average flow velocity of the measured medium and the velocity of the sound wave in a stationary medium. The transducer is the key component for realizing the mutual conversion of electrical energy and ultrasonic energy. It mainly consists of piezoelectric elements and acoustic wedges. The working principle of the transducer is as follows: utilizing the piezoelectric effect of piezoelectric materials, the transmitting circuit applies electrical energy to the piezoelectric element of the transmitting transducer, causing it to generate ultrasonic vibrations. The ultrasonic waves propagate into the fluid, are received by the receiving transducer, and converted into electrical energy by the piezoelectric element, thereby achieving flow detection.

[0003] To monitor the water volume transferred from the reservoir, several sets of ultrasonic flow meters are usually installed on both banks of the river upstream of the control gate to measure the water volume transferred through the river. However, due to the high sediment content of the water, the transducers of the ultrasonic flow meters and the surrounding area are severely silted up, causing the ultrasonic flow meters to frequently issue malfunction warnings and resulting in inaccurate measurement.

[0004] In the existing technology, the cleaning method for ultrasonic flow meter transducers is usually manual cleaning, which has the problems of high labor intensity, high cost and low efficiency. Some methods involve setting up annular roller brushes around the ultrasonic flow meter transducer, which move up and down in the water to clean the sediment accumulated on the transducer. However, such devices need to be placed in the water all year round and have low durability. Utility Model Content

[0005] To address the technical problems of high labor intensity, high cost, low efficiency, and low durability in cleaning ultrasonic flow meter transducers in existing technologies, this utility model provides a dredging device for ultrasonic flow meter transducers used in open channels.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A dredging device for an ultrasonic flow meter transducer in an open channel includes a base, a movable frame movably mounted on the base, a traveling motor mounted on the top of the movable frame, and a moving transmission assembly installed between the movable frame and the base. The traveling motor drives the movable frame to move along the length of the base through the moving transmission assembly. A rotary motor is mounted on the top of the movable frame, and a roller brush is rotatably mounted on the bottom of the movable frame. The rotary motor and the roller brush are connected through a flexible transmission assembly, and the rotary motor can drive the roller brush to rotate.

[0008] Using the above structural design, the base is placed at an angle along the sloping surface of the river embankment, with its bottom end extending into the water to reach the transducer's placement position. A movable frame is mounted on the base, along with a traveling motor and transmission components, allowing precise control of the frame's movement along the base's length. This ensures the roller brush reaches the silt-accumulated area of ​​the transducer for dredging operations in and around it. This eliminates the need for complex underwater installations and offers high dredging efficiency, significantly improving the practicality and convenience of the dredging device. It effectively solves the problems of high labor intensity, high cost, and low efficiency associated with manual cleaning, and is also more durable than dredging devices that are permanently submerged in water. The rotating motor and roller brush are connected via a flexible transmission component, ensuring stable power transmission for the roller brush's rotation and buffering some impact forces, protecting both the motor and the roller brush.

[0009] As a preferred implementation of a dredging device for an ultrasonic flow meter transducer used in open channels, the moving transmission assembly includes a rack, a drive gear, a first traveling wheel, a driven gear, and a second traveling wheel. The rack is mounted on the upper surface of the base and is arranged along the length of the base. The drive gear is rotatably mounted on one side of the top bottom of the moving frame, and the first traveling wheel is rotatably mounted on the other side of the top bottom of the moving frame. The driven gear is rotatably mounted on one side of the bottom bottom of the moving frame, and the second traveling wheel is rotatably mounted on the other side of the bottom bottom of the moving frame. The output shaft of the traveling motor is connected to the drive gear, and both the drive gear and the driven gear mesh with the rack.

[0010] With the above structural design, both the driving gear and the driven gear mesh with the rack. The travel motor drives the driving gear to rotate, enabling the mobile frame to move smoothly along the rack. Traveling wheels one and two provide support and assist in movement, ensuring the stability of the mobile frame during movement, reducing swaying and deviation, allowing the roller brush to act more precisely on the transducer during dredging, improving the dredging effect and accuracy, and ensuring reliable dredging operations.

[0011] As a preferred implementation of a dredging device for an ultrasonic flow meter transducer used in open channels, limit rods are installed on both sides of the top and bottom of the mobile frame, and the limit rods abut against both sides of the base.

[0012] With the above structural design, the limiting rods installed on the top and bottom sides of the mobile frame abut against the sides of the base, which restricts the movement trajectory of the mobile frame and prevents unnecessary deviation or shaking during movement. This further ensures the accuracy of the position when the roller brush is cleaning, prevents incomplete cleaning or damage to surrounding equipment due to deviation of the mobile frame, and improves the stability and reliability of the cleaning device.

[0013] As a preferred implementation of a dredging device for an ultrasonic flow meter transducer used in open channels, the flexible transmission assembly includes a drive sprocket, a driven sprocket, and a chain. The drive sprocket is connected to the output shaft of a rotary motor, the driven sprocket is connected to the roller of a brush, and the chain cooperates with the drive sprocket and the driven sprocket.

[0014] With the above structural design, the flexible transmission assembly utilizes a driving sprocket, a driven sprocket, and a chain for power transmission, efficiently transmitting the power of the rotating motor to drive the roller brush to rotate stably. Chain drive offers flexibility, adapting to installation requirements in various working environments. During operation, it buffers some vibrations and impacts, protecting the connecting components of the rotating motor and the roller brush, extending the equipment's service life. Furthermore, compared to rigid transmission, installation and maintenance are simpler.

[0015] As a preferred implementation of a dredging device for an ultrasonic flow meter transducer used in open channels, a tensioning wheel is rotatably mounted on the mobile frame. The tensioning wheel is located between the driving sprocket and the driven sprocket, and the tensioning wheel cooperates with the chain.

[0016] By adopting the above structural design, the tension wheel can adjust the chain tension, ensuring that the chain always maintains a suitable tension between the driving sprocket and the driven sprocket. This effectively avoids problems such as tooth skipping and chain slippage caused by chain loosening, ensuring the reliability of power transmission, enabling the roller brush to rotate continuously and stably, maintaining the continuity and efficiency of dredging work, and reducing dredging interruptions caused by chain failure.

[0017] As a preferred implementation of a dredging device for an ultrasonic flow meter transducer used in open channels, a winch is provided at the top of the base, and a crossbar is connected between the two sides of the movable frame, with the hook on the winch connected to the crossbar.

[0018] With the above structural design, the winch at the top of the base is connected to the crossbar on the mobile frame via a hook, which can limit the movement of the mobile frame and prevent it from falling.

[0019] As a preferred implementation of a dredging device for an ultrasonic flow meter transducer used in open channels, a winch is connected to a wire-type displacement sensor, and the wire of the wire-type displacement sensor is connected to a hook; the wire-type displacement sensor is electrically connected to a control device, and the traveling motor is electrically connected to the control device, thereby controlling the start and stop of the traveling motor according to the traveling distance of the moving frame.

[0020] By adopting the above structural scheme, the travel distance of the mobile frame is accurately measured by a pull-wire displacement sensor. The control device automatically controls the start and stop of the travel motor based on this distance, which improves the accuracy and efficiency of dredging work, reduces errors and labor intensity of manual operation, and makes the dredging process more intelligent and precise.

[0021] As a preferred implementation of a dredging device for an ultrasonic flow meter transducer used in open channels, the rotary motor is electrically connected to the control device, thereby facilitating the control of the rotary motor's forward and reverse rotation.

[0022] With the above structural design, the rotary motor is electrically connected to the control device, facilitating its forward and reverse rotation. During the dredging process, by changing the direction of the rotary motor, the roller brush can clean the ultrasonic flow meter transducer from different directions, enabling a more comprehensive and thorough removal of silt accumulated at different angles on the transducer. This improves the dredging quality, ensures that the surface of the ultrasonic flow meter transducer is thoroughly and effectively cleaned, and thus guarantees the normal measurement of the ultrasonic flow meter.

[0023] The beneficial effects of this utility model include:

[0024] This invention solves the problems of high labor intensity, high cost, and low efficiency of manual dredging by tilting the base so that its bottom end reaches the transducer. A walking motor drives the mobile frame to move along the base, and a rotary motor drives the roller brush to rotate. It also overcomes the shortcomings of existing underwater dredging devices, such as low durability. The moving transmission assembly ensures stable and precise movement of the mobile frame, the limit rod ensures accurate movement trajectory, the flexible transmission assembly stabilizes the power transmission of the roller brush and buffers impacts, and the tension wheel ensures reliable chain drive. A winch prevents the mobile frame from falling, improving safety. Combined with a wire-type displacement sensor and control device, it achieves automated control, precisely controlling the mobile frame's travel distance. The rotary motor can rotate in both directions, thoroughly cleaning the silt accumulated on the transducer, improving dredging quality, and ensuring accurate measurement by the ultrasonic flow meter. Attached Figure Description

[0025] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a three-dimensional structural diagram of a dredging device for an ultrasonic flow meter transducer used in open channels, according to a specific embodiment of this utility model.

[0027] Figure 2 for Figure 1 Enlarged schematic diagram of the structure at point A;

[0028] Figure 3 for Figure 1 Enlarged schematic diagram of the structure at point B;

[0029] Figure 4 This is a schematic diagram of the flexible transmission assembly in a specific embodiment of the present invention;

[0030] Figure 5 This is a side view of the rack and drive gear in a specific embodiment of the present invention.

[0031] List of components and reference numerals:

[0032] 1. Base; 2. Moving frame; 3. Travel motor; 4. Rack; 5. Drive gear; 6. Travel wheel one; 7. Driven gear; 8. Travel wheel two; 9. Limit rod; 10. Rotary motor; 11. Roller brush; 12. Drive sprocket; 13. Driven sprocket; 14. Chain; 15. Tensioner wheel; 16. Winch; 17. Hook; 18. Crossbar. Detailed Implementation

[0033] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0034] Reference Figure 1-5 This embodiment proposes a dredging device for an ultrasonic flowmeter transducer in an open channel, including a base 1, on which a movable frame 2 is movably mounted. Both the base 1 and the movable frame 2 are frame structures. A traveling motor 3 is mounted on the top of the movable frame 2, and a moving transmission assembly is installed between the movable frame 2 and the base 1. The traveling motor 3 drives the movable frame 2 to move along the length of the base 1 through the moving transmission assembly. The moving transmission assembly includes a rack 4, a driving gear 5, a first traveling wheel 6, a driven gear 7, and a second traveling wheel 8. The rack 4 is mounted on the upper surface of the base 1 and is arranged along the length of the base 1. The driving gear 5 is rotatably mounted on one side of the bottom of the top of the movable frame 2, and the first traveling wheel 6 is rotatably mounted on the other side of the bottom of the top of the movable frame 2. The driven gear 7 is rotatably mounted on one side of the bottom of the bottom of the movable frame 2, and the second traveling wheel 8 is rotatably mounted on the other side of the bottom of the bottom of the movable frame 2. The output shaft of the traveling motor 3 is connected to the driving gear 5, and both the driving gear 5 and the driven gear 7 mesh with the rack 4. Limiting rods 9 are installed on both sides of the top and bottom of the movable frame 2, and the limiting rods 9 abut against the two sides of the base 1.

[0035] A rotary motor 10 is mounted at the top of the movable frame 2, and a roller brush 11 is rotatably mounted at the bottom of the movable frame 2. The rotary motor 10 and the roller brush 11 are connected via a flexible transmission assembly, and the rotary motor 10 can drive the roller brush 11 to rotate. The flexible transmission assembly includes a drive sprocket 12, a driven sprocket 13, and a chain 14. The drive sprocket 12 is connected to the output shaft of the rotary motor 10, the driven sprocket 13 is connected to the roller of the roller brush 11, and the chain 14 cooperates with the drive sprocket 12 and the driven sprocket 13. A tensioning wheel 15 is rotatably mounted on the movable frame 2, located between the drive sprocket 12 and the driven sprocket 13, and cooperates with the chain 14.

[0036] A winch 16 is mounted on the top of the base 1. A crossbar 18 connects the two sides of the movable frame 2. The hook 17 on the winch 16 is connected to the crossbar 18. The winch 16 is connected to a wire-type displacement sensor, and the wire of the wire-type displacement sensor is connected to the hook 17. The wire-type displacement sensor is electrically connected to the control device, and the traveling motor 3 is electrically connected to the control device. The rotary motor 10 is electrically connected to the control device.

[0037] Work process:

[0038] Place base 1 at an angle along the sloping surface of the river embankment, so that the bottom end of base 1 extends into the water directly to the placement position of the ultrasonic flow meter transducer.

[0039] The walking motor 3 is started, and its output shaft drives the drive gear 5 to rotate. Since both the drive gear 5 and the driven gear 7 mesh with the rack 4 mounted on the upper surface of the base 1 along its length, the moving frame 2 is driven to move along the length of the base 1. The first walking wheel 6 on one side of the top bottom of the moving frame 2 and the second walking wheel 8 on the other side of the bottom bottom of the moving frame 2 provide auxiliary support, ensuring its stability. Simultaneously, the limiting rods 9 installed on both sides of the top and bottom of the moving frame 2 abut against both sides of the base 1, restricting the moving trajectory of the moving frame 2 and ensuring its precise movement to the congestion position of the transducer. During this process, a wire-type displacement sensor measures the walking distance of the moving frame 2 in real time and transmits the data to the control device. When the moving frame 2 reaches the designated position, the control device automatically stops the walking motor 3.

[0040] The rotary motor 10 is started, and its output shaft drives the drive sprocket 12 to rotate. This rotation is transmitted through the chain 14, causing the driven sprocket 13 to rotate, which in turn drives the roller brush 11 connected to the driven sprocket 13 to rotate. The chain 14 in the flexible transmission assembly is flexible, not only efficiently transmitting power but also buffering vibration and impact, protecting the connection components between the motor and the roller brush 11. The tension wheel 15 adjusts the tension of the chain 14 to ensure stable transmission. During the rotation of the roller brush 11, silt can be cleared from the transducer and surrounding area. Furthermore, the rotary motor 10 can be controlled to rotate in both directions via a control device, allowing the roller brush 11 to clean the transducer from different directions, comprehensively and thoroughly removing accumulated silt and improving the quality of silt removal.

[0041] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A dredging device for an ultrasonic flow meter transducer in an open channel, comprising a base (1), characterized in that, A movable frame (2) is mounted on the base (1). A walking motor (3) is installed on the top of the movable frame (2). A moving transmission assembly is installed between the movable frame (2) and the base (1). The walking motor (3) drives the movable frame (2) to move along the length direction of the base (1) through the moving transmission assembly. A rotary motor (10) is installed at the top of the mobile frame (2), and a roller brush (11) is rotatably installed at the bottom of the mobile frame (2). The rotary motor (10) and the roller brush (11) are connected through a flexible transmission assembly. The rotary motor (10) can drive the roller brush (11) to rotate.

2. The dredging device for an ultrasonic flow meter transducer in an open channel according to claim 1, characterized in that, The moving transmission assembly includes a rack (4), a driving gear (5), a first traveling wheel (6), a driven gear (7), and a second traveling wheel (8). The rack (4) is mounted on the upper surface of the base (1) and is arranged along the length of the base (1). The drive gear (5) is rotatably mounted on one side of the top bottom of the mobile frame (2), and the first walking wheel (6) is rotatably mounted on the other side of the top bottom of the mobile frame (2); Driven gear (7) is rotatably mounted on one side of the bottom of the bottom of the mobile frame (2), and walking wheel (8) is rotatably mounted on the other side of the bottom of the bottom of the mobile frame (2); The output shaft of the walking motor (3) is connected to the drive gear (5), and both the drive gear (5) and the driven gear (7) mesh with the rack (4).

3. A dredging device for an ultrasonic flow meter transducer in an open channel according to claim 2, characterized in that, Limiting rods (9) are installed on both sides of the top and bottom of the movable frame (2), and the limiting rods (9) abut against both sides of the base (1).

4. A dredging device for an ultrasonic flow meter transducer in an open channel according to claim 1, characterized in that, The flexible transmission assembly includes a drive sprocket (12), a driven sprocket (13), and a chain (14). The drive sprocket (12) is connected to the output shaft of the rotary motor (10), the driven sprocket (13) is connected to the roller of the roller brush (11), and the chain (14) cooperates with the drive sprocket (12) and the driven sprocket (13).

5. A dredging device for an ultrasonic flow meter transducer in an open channel according to claim 4, characterized in that, A tension wheel (15) is rotatably mounted on the movable frame (2). The tension wheel (15) is located between the driving sprocket (12) and the driven sprocket (13). The tension wheel (15) cooperates with the chain (14).

6. A dredging device for an ultrasonic flow meter transducer in an open channel according to claim 1, characterized in that, A winch (16) is provided at the top of the base (1), and a crossbar (18) is connected between the two sides of the moving frame (2). The hook (17) on the winch (16) is connected to the crossbar (18).

7. A dredging device for an ultrasonic flow meter transducer in an open channel according to claim 6, characterized in that, The winch (16) is connected to the wire displacement sensor, and the wire of the wire displacement sensor is connected to the hook (17); the wire displacement sensor is electrically connected to the control device, and the walking motor (3) is electrically connected to the control device.

8. A dredging device for an ultrasonic flow meter transducer in an open channel according to claim 7, characterized in that, The rotary motor (10) is electrically connected to the control device.

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