Metering device for asphalt mixture production

Abstract

The application discloses a metering device for asphalt mixture production and belongs to the production metering field, which comprises a stock bin, the inner wall of the stock bin is provided with a circular ring, a metering hopper is slidably connected in the stock bin, the top of the circular ring is provided with a fixing disc, one end of a return spring is fixedly connected to the top of the fixing disc, the other end of the return spring is fixedly connected to the outside of the metering hopper, one end of an extrusion rod is fixedly connected to the outside of the metering hopper, and a weighing sensor is fixedly connected to the top of the fixing disc; the weight of the mixture drives the metering hopper to move downwards from four directions, the extrusion rod is used to stably transmit the extrusion force to the weighing sensor, the weighing sensor is used to monitor the weight of the mixture in the metering hopper in real time, accurate metering is realized, manual separate weighing of the material is not needed, the efficiency is higher, and the metering device can be directly integrated with the production device for use, and separate operation is not needed.

Description

Technical Field

[0001] This application relates to the field of production measurement technology, and in particular to a metering device for asphalt mixture production. Background Technology

[0002] Asphalt mixture is a composite material mainly composed of asphalt, coarse aggregate, fine aggregate, and mineral powder. Some also contain polymers and wood cellulose. These materials of different qualities and quantities are mixed to form different structures and have different mechanical properties. When producing asphalt mixtures in large quantities, it is necessary to determine the proportions according to the requirements, and to mix asphalt with coarse aggregate, fine aggregate, mineral powder, and other additives in a certain proportion.

[0003] In existing technologies, the production and metering of asphalt mixtures are mostly done manually by weighing the materials to be added multiple times when adding composite materials, which leads to low efficiency in production. Since the production of asphalt mixtures requires continuous processing, manual weighing is slow. To address the aforementioned technical bottlenecks, this application proposes a metering device for asphalt mixture production to solve the problems described above. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model provides a metering device for asphalt mixture production, which overcomes the shortcomings of the prior art and aims to solve the problems in the background art.

[0005] To achieve the above objectives, this application adopts the following technical solution: a metering device for asphalt mixture production, comprising a silo, an inner wall of which is fitted with a ring, a metering hopper slidably connected inside the silo, a fixed plate mounted on the top of the ring, a return spring fixedly connected to the top of the fixed plate, the other end of the return spring being fixedly connected to the outside of the metering hopper, an extrusion rod fixedly connected to the outside of the metering hopper, a weighing sensor fixedly connected to the top of the fixed plate, the bottom end of the extrusion rod abutting the top of the weighing sensor, a baffle mounted on the inner wall of the metering hopper, a horizontal plate mounted on the top of the metering hopper, a feeding assembly mounted inside the horizontal plate, a motor mounted on the top of the horizontal plate, and an extension tube fixedly connected to the bottom of the metering hopper.

[0006] In a preferred embodiment, the number of the fixed disk, return spring, compression rod and weighing sensor is four, and the four fixed disks, return springs, compression rods and weighing sensors are arranged in a ring at the middle position of the measuring hopper and the ring.

[0007] By adopting the above technical solution, after the mixture is put into the metering hopper, the weight of the mixture can drive the metering hopper to move downward from four directions. Then, the extrusion rod can be used to stabilize the weight sensor to transmit the extrusion force, thereby enabling real-time monitoring of the weight of the mixture inside the metering hopper and achieving accurate metering.

[0008] In a preferred embodiment, the feeding assembly includes a rotating rod rotatably connected to the inner wall of the horizontal plate. A gap-filling plate is installed at the bottom of the rotating rod and is rotatably connected to the top of the baffle, corresponding to the gap position of the baffle and adapted in shape.

[0009] By adopting the above technical solution, the gap in the baffle can be sealed by the filling plate, which further ensures that the material will not easily pour down from the inside of the metering hopper. At the same time, the driving rod drives the filling plate to rotate until the filling plate overlaps with part of the baffle, so that the material inside the metering hopper can be discharged and fed down through the gap in the baffle.

[0010] In a preferred embodiment, a scraper is installed on the outer edge of the rotating rod, and the side of the scraper away from the rotating rod is in contact with the inner wall of the measuring hopper.

[0011] By adopting the above technical solution, the rotating rod drives the scraper to rotate continuously around the inside of the metering hopper, which can be used to scrape off the material adhering to the inner wall of the metering hopper, thereby ensuring the thoroughness of the material discharge after metering.

[0012] In a preferred embodiment, the inner wall of the cross plate is fixedly connected to the outer ring of the bearing, and the rotating rod is fixedly connected to the inner ring of the bearing.

[0013] By adopting the above technical solution, the rotating rod can be limited during rotation, ensuring its stability during rotation. Furthermore, it can ensure that the rotating rod will not interfere with the horizontal plate during rotation, and further ensure that the rotating rod will not swing arbitrarily during rotation.

[0014] In a preferred embodiment, a pentagonal hole is provided at the top of the rotating rod, and a pentagonal post is fixedly connected to the output shaft of the motor. The pentagonal post is adapted to be inserted into the inner wall of the pentagonal hole.

[0015] By adopting the above technical solution, the force of the motor output shaft rotation can be transmitted to the rotating rod to realize power transmission, and the pentagonal prism can be easily removed from the inner wall of the pentagonal hole after the motor is removed, thus achieving separation.

[0016] In a preferred embodiment, fixing blocks are installed on both sides of the motor, and two frames are symmetrically installed on the top of the horizontal plate. The two fixing blocks are inserted into the inner walls of the two frames, and bolts are installed on the outer walls of the frames to be threadedly connected to the fixing blocks.

[0017] By adopting the above technical solution, it is possible to position the motor, ensuring that the motor is stably installed on the top of the horizontal plate. Furthermore, the bolts can be removed to take the fixing block out of the inner wall of the frame, and the motor can be disassembled.

[0018] The beneficial effects of this application are: This metering device for asphalt mixture production moves the metering hopper downwards from four directions by setting the weight of the mixture. The extrusion rod stabilizes the transmission of extrusion force to the weighing sensor, which in turn monitors the weight of the mixture inside the metering hopper in real time, achieving accurate metering. This eliminates the need for manual weighing of materials, resulting in high efficiency. Furthermore, it can be directly integrated with the production equipment without requiring separate operations.

[0019] This metering device for asphalt mixture production drives a rotating rod to rotate a filling plate until the filling plate partially overlaps with a baffle. This allows the material inside the metering hopper to be discharged downwards through the gap in the baffle. Furthermore, the rotating rod drives a scraper to continuously rotate around the inside of the metering hopper, which can scrape off the material adhering to the inner wall of the metering hopper, thereby ensuring the thoroughness of the discharge after metering. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a schematic diagram of the cross-sectional structure of the silo in this application; Figure 3 This is a schematic diagram of the cross-sectional structure of the measuring hopper in this application; Figure 4 This is a schematic diagram of the unfolded structure of the baffle and the missing plate in this application; Figure 5 This is a cross-section and two enlarged structural schematic diagrams of this application.

[0021] Labels in the diagram: 1. Hopper; 2. Ring; 3. Measuring hopper; 4. Fixed plate; 5. Return spring; 6. Extrusion rod; 7. Weighing sensor; 8. Baffle; 9. Horizontal plate; 10. Rotating rod; 11. Filler plate; 12. Scraper; 13. Bearing; 14. Pentagonal hole; 15. Motor; 16. Pentagonal column; 17. Fixing block; 18. Frame; 19. Bolt; 20. Extension tube. Detailed Implementation

[0022] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0023] Reference Figure 1-5A metering device for asphalt mixture production includes a hopper 1, an inner wall of which is fitted with a ring 2, a metering hopper 3 slidably connected inside the hopper 1, a fixed plate 4 mounted on the top of the ring 2, a return spring 5 fixedly connected to the top of the fixed plate 4, and the other end of the return spring 5 fixedly connected to the outside of the metering hopper 3, an extrusion rod 6 fixedly connected to the outside of the metering hopper 3, a weighing sensor 7 fixedly connected to the top of the fixed plate 4, the bottom end of the extrusion rod 6 abutting the top of the weighing sensor 7, a baffle 8 mounted on the inner wall of the metering hopper 3, a horizontal plate 9 mounted on the top of the metering hopper 3, a material discharging assembly mounted inside the horizontal plate 9, a motor 15 mounted on the top of the horizontal plate 9, and an extension tube 20 fixedly connected to the bottom of the metering hopper 3.

[0024] See Figure 2 and Figure 3 The number of fixed disks 4, return springs 5, extrusion rods 6 and weighing sensors 7 is four. The four fixed disks 4, return springs 5, extrusion rods 6 and weighing sensors 7 are arranged in a ring at the middle of the metering hopper 3 and the ring 2. After the mixture is put into the inside of the metering hopper 3, the weight of the mixture can drive the metering hopper 3 to move downward from four directions. Then, the extrusion rods 6 can stabilize the transmission of extrusion force to the weighing sensors 7, so as to monitor the weight of the mixture inside the metering hopper 3 in real time and achieve accurate measurement.

[0025] See Figure 4 The feeding assembly includes a rotating rod 10, which is rotatably connected to the inner wall of the horizontal plate 9. A gap-filling plate 11 is installed at the bottom of the rotating rod 10. The gap-filling plate 11 is rotatably connected to the top of the baffle 8 and corresponds to the position of the gap in the baffle 8 and is adapted in shape. This allows the gap in the baffle 8 to be sealed by the gap-filling plate 11, further ensuring that the material will not easily pour down from the inside of the metering hopper 3. At the same time, the rotating rod 10 drives the gap-filling plate 11 to rotate until the gap-filling plate 11 overlaps with part of the baffle 8, so that the material inside the metering hopper 3 can be discharged and fed down through the gap in the baffle 8.

[0026] See Figure 3 and Figure 4 A scraper 12 is installed on the outer edge of the rotating rod 10. The side of the scraper 12 away from the rotating rod 10 is in contact with the inner wall of the metering hopper 3, so that the rotating rod 10 drives the scraper 12 to rotate continuously around the inside of the metering hopper 3, which can be used to scrape off the material adhering to the inner wall of the metering hopper 3, thereby ensuring the thoroughness of the material discharge after metering.

[0027] See Figure 5The inner wall of the horizontal plate 9 is fixedly connected to the outer ring of the bearing 13, and the rotating rod 10 is fixedly connected to the inner ring of the bearing 13, so that the rotating rod 10 can be used to limit the rotation of the rotating rod 10, ensuring the stability of the rotating rod 10 during rotation, further ensuring that the rotating rod 10 will not interfere with the horizontal plate 9 during rotation, and further ensuring that the rotating rod 10 will not swing randomly during rotation.

[0028] See Figure 5 The top of the rotating rod 10 has a pentagonal hole 14. The output shaft of the motor 15 is fixedly connected to a pentagonal post 16. The pentagonal post 16 is adapted to be inserted into the inner wall of the pentagonal hole 14, so that the force of the output shaft of the motor 15 can be transmitted to the rotating rod 10 to realize power transmission. After the motor 15 is removed, the pentagonal post 16 can be easily removed from the inner wall of the pentagonal hole 14 to achieve separation.

[0029] See Figure 5 Fixing blocks 17 are installed on both sides of the motor 15. Two frames 18 are symmetrically installed on the top of the horizontal plate 9, and the two fixing blocks 17 are inserted into the inner walls of the two frames 18. Bolts 19 are installed on the outer walls of the frames 18 and threadedly connected to the fixing blocks 17, which can be used to position the motor 15 and ensure that the motor 15 is stably installed on the top of the horizontal plate 9. Furthermore, the bolts 19 can be removed to take the fixing blocks 17 out of the inner walls of the frames 18, and the motor 15 can be disassembled.

[0030] Working principle: First, the mixture can be fed into the metering hopper 3. The weight of the mixture drives the metering hopper 3 to move downward from four directions. Then, the extrusion rod 6 stabilizes the transmission of extrusion force to the weighing sensor 7. The weighing sensor 7 can monitor the weight of the mixture inside the metering hopper 3 in real time to achieve accurate metering. Then, the rotating rod 10 drives the filling plate 11 to rotate until the filling plate 11 overlaps with part of the baffle 8. The material inside the metering hopper 3 can then be discharged downward through the gap in the baffle 8. Furthermore, the rotating rod 10 drives the scraper 12 to rotate continuously around the inside of the metering hopper 3 to scrape off the material adhering to the inner wall of the metering hopper 3, thus ensuring the thoroughness of the discharge after metering. Remove bolt 19 to remove fixing block 17 from inner wall of frame 18, further remove motor 15 from top of cross plate 9, and remove pentagonal column 16 from inner wall of pentagonal hole 14, thereby enabling disassembly and maintenance of motor 15.

[0031] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] The present invention has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are exemplary and not intended to limit the scope of protection of the present invention. Those skilled in the art can make various modifications and variations to the present invention based on its spirit and principles, and these modifications and variations are also within the scope of the present invention.

Claims

1. A metering device for asphalt mixture production, comprising a silo (1), characterized in that, The inner wall of the hopper (1) is equipped with a ring (2), and the inside of the hopper (1) is slidably connected to a metering hopper (3). A fixed plate (4) is installed on the top of the ring (2). One end of a return spring (5) is fixedly connected to the top of the fixed plate (4), and the other end of the return spring (5) is fixedly connected to the outside of the metering hopper (3). One end of a pressing rod (6) is fixedly connected to the outside of the metering hopper (3). A weighing sensor (7) is fixedly connected to the top of the fixed plate (4). The bottom end of the pressing rod (6) abuts against the top of the weighing sensor (7). A baffle (8) is installed on the inner wall of the metering hopper (3). A horizontal plate (9) is installed on the top of the metering hopper (3). A feeding assembly is installed inside the horizontal plate (9). A motor (15) is installed on the top of the horizontal plate (9). An extension tube (20) is fixedly connected to the bottom of the metering hopper (3).

2. The metering device for asphalt mixture production according to claim 1, characterized in that, The number of fixed disks (4), reset springs (5), squeezing rods (6) and weighing sensors (7) is four, and the four fixed disks (4), reset springs (5), squeezing rods (6) and weighing sensors (7) are arranged in a ring at the middle position of the measuring hopper (3) and the ring (2).

3. The metering device for asphalt mixture production according to claim 1, characterized in that, The feeding assembly includes a rotating rod (10), which is rotatably connected to the inner wall of the horizontal plate (9). A gap-filling plate (11) is installed at the bottom of the rotating rod (10). The gap-filling plate (11) is rotatably connected to the top of the baffle (8) and corresponds to the gap position of the baffle (8) and is adapted in shape.

4. A metering device for asphalt mixture production according to claim 3, characterized in that, A scraper (12) is installed on the outer edge of the rotating rod (10), and the side of the scraper (12) away from the rotating rod (10) is in contact with the inner wall of the measuring hopper (3).

5. A metering device for asphalt mixture production according to claim 3, characterized in that, The inner wall of the horizontal plate (9) is fixedly connected to the outer ring of the bearing (13), and the rotating rod (10) is fixedly connected to the inner ring of the bearing (13).

6. A metering device for asphalt mixture production according to claim 3, characterized in that, The top of the rotating rod (10) is provided with a pentagonal hole (14), and the output shaft of the motor (15) is fixedly connected to a pentagonal column (16), which is adapted to be inserted into the inner wall of the pentagonal hole (14).

7. A metering device for asphalt mixture production according to claim 1, characterized in that, Fixing blocks (17) are installed on both sides of the motor (15). Two frames (18) are symmetrically installed on the top of the horizontal plate (9), and the two fixing blocks (17) are inserted into the inner walls of the two frames (18). Bolts (19) are installed on the outer walls of the frames (18) and threadedly connected to the fixing blocks (17).

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