RAP fine screening mechanism

Abstract

The utility model relates to the technical field of screening provides a RAP fine screening mechanism, including frame, drive assembly, screening box and discharge plate, screening box both ends rotationally arranged in the frame, screening box inside bottom wall sets up screening net, and the discharge plate rotationally arranged in the screening box bottom, and the frame side wall top sets up drive assembly, and drive assembly output end connects screening box and discharge plate, and drive assembly drives screening box and discharge plate to carry out screening and discharge respectively. The device structure is compact and efficient, screening box can realize automatic screening under the drive of drive assembly, and simultaneously the discharge plate can realize automatic discharge under the drive of drive assembly, do not need manual intervention, improve the discharge efficiency, and the equipment structure is simple, and the energy consumption is low, and the efficiency is higher.

Description

Technical Field

[0001] This utility model relates to the field of screening technology, and in particular to a RAP fine screening mechanism. Background Technology

[0002] Recycled asphalt mixture (RAP) refers to a mixture made by excavating, recycling, crushing, and screening old asphalt pavement, and then remixing it with recycling agents, new asphalt materials, and new aggregates in a certain proportion. A large amount of RAP is generated during road maintenance and reconstruction. Effective recycling and reuse of RAP can not only save resources but also reduce environmental pollution.

[0003] Existing screening mechanisms mostly use vibrators for vibration, which generates a lot of noise. The screening and discharge processes require multiple power sources, resulting in complex equipment structures and high energy consumption. In addition, the discharge pipes of existing equipment are not convenient enough, cannot be folded when the equipment is not in use, and occupy a lot of space.

[0004] Therefore, to address the above problems, a RAP fine screening mechanism is proposed to solve them. Utility Model Content

[0005] This invention addresses the shortcomings of existing technologies by developing a RAP fine screening mechanism. This invention has good screening effect, simple structure, and foldable discharge plate for easy storage.

[0006] The technical solution to the technical problem solved by this utility model is as follows: This utility model provides a RAP fine screening mechanism, including a frame, a drive assembly, a screening box and a discharge plate. The two ends of the screening box are rotatably arranged in the frame. A screening screen is arranged on the bottom wall of the screening box. The discharge plate is rotatably arranged at the bottom of the screening box. The drive assembly is arranged on the top of the side wall of the frame. The output end of the drive assembly is connected to the screening box and the discharge plate. The drive assembly drives the screening box and the discharge plate to screen and discharge materials respectively.

[0007] As an optimization, the drive assembly includes a motor, a drive pulley, a driven pulley, a transmission belt, a first connecting unit, and a second connecting unit. The motor is located on the top of the outer wall of the frame, the drive pulley and the driven pulley are located on the top wall of the frame and are connected by the transmission belt, the output end of the motor is connected to the drive pulley, the first connecting unit is eccentrically arranged on the drive pulley and is connected to the discharge plate, and the second connecting unit is eccentrically arranged on the driven pulley and is connected to the screening box.

[0008] As an optimization, the second connecting unit includes a first support rod, a connecting rod, a V-shaped rod, and a second support rod. The first support rod is eccentrically mounted on the driven pulley. The connecting rod is hinged to the first support rod. One end of the connecting rod away from the first support rod is hinged to one end of the V-shaped rod. The other end of the V-shaped rod is hinged to the screening box. The second support rod is mounted on the inner wall of the frame and located below the transmission belt. The bottom of the V-shaped rod is rotatably mounted on the second support rod.

[0009] As an optimization, the first connecting unit includes an L-shaped rotating rod, which is eccentrically mounted on the drive pulley, and the bottom of the L-shaped rotating rod is hinged to the discharge plate.

[0010] As an optimization, the top and front faces of the frame are set with openings, and a guide plate is also set inside the frame. The guide plate is inclined at the bottom of the screening box, and the height of the end of the guide plate near the opening is lower than the height of the end away from the opening. The discharge plate is rotated at the bottom end of the guide plate near the opening.

[0011] As an optimization, baffles are installed on both sides of the guide plate, and the frontal projection area of ​​the bottom plate of the guide plate is larger than the frontal projection area of ​​the screening screen.

[0012] As an optimization, a fixing component is also included, which includes a hook, a stop bar, and a hanging ring. An installation groove is opened on the outer edge of the inner side wall of the frame. The bottom wall of the installation groove is horizontally connected to one end of the hook. A sliding groove is opened on the bottom wall of the installation groove along the horizontal direction. A stop bar is set in the sliding groove. A hanging ring is set on the side end of the discharge plate. The free end of the hook rotates and hooks with the hanging ring to the bottom of the hook and self-locks with the stop bar.

[0013] As an optimization, the hook is C-shaped with the hook opening facing towards the frame. The stop bar includes a sliding rod, a first traction rod, and a second traction rod. The first traction rod is slidably installed on the side of the slide groove near the hook. A spring is installed on the inner wall of the slide groove away from the hook, and the spring connects to the first traction rod. The first traction rod is installed on the sliding rod perpendicular to the length direction of the sliding rod, and the second traction rod is connected to the first traction rod along the length direction parallel to the sliding rod.

[0014] As an optimization, a rotating shaft is set on the bottom wall of the mounting groove. One end of the hook is rotated to be set on the bottom wall of the mounting groove via the rotating shaft, and the other end is opened with a "V"-shaped locking interface. The bottom of the sliding rod is in the shape of a "V"-shaped tip, and the "V"-shaped tip is adapted to the locking interface of the hook.

[0015] The effects provided in the utility model description are merely those of the embodiments, and not all the effects of the utility model. The above technical solution has the following advantages or beneficial effects: 1. This device is compact and efficient. The screening box can automatically screen under the drive of the drive component, and the discharge plate can automatically discharge under the drive of the drive component. No manual intervention is required, which improves the discharge efficiency. The equipment has a simple structure, low energy consumption, and higher efficiency.

[0016] 2. A single motor drives both the screening box and the discharge plate simultaneously, eliminating the need for multiple additional power sources. This simplifies the overall structure, reduces energy consumption, makes the equipment more compact, and saves installation space. The belt drive system ensures smooth transmission and low noise, while the hinged connections between the various units guarantee flexibility and stability.

[0017] 3. The fixed components can reliably lock the discharge plate when the equipment is not in use, preventing it from opening accidentally and reducing space occupation. Attached Figure Description

[0018] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0019] Figure 1 This is an overall structural diagram of the present invention; Figure 2 This is a structural diagram of the drive component of this utility model; Figure 3 This is a structural diagram showing the connection between the discharge plate and the guide plate of this utility model; Figure 4 This is a top view of the screening box of this utility model; Figure 5 This is a structural diagram of the mounting groove of this utility model; Figure 6 This is a structural diagram showing the connection between the hook and the stop bar of this utility model.

[0020] In the diagram: 1. Frame; 2. Screening box; 201. Screening screen; 3. Discharge plate; 4. Motor; 5. Drive pulley; 6. Driven pulley; 7. Transmission belt; 8. First support rod; 9. Connecting rod; 10. V-shaped rod; 11. Second support rod; 12. L-shaped rotating rod; 13. Guide plate; 14. Baffle; 15. Hook; 1501. Clip interface; 16. Stop bar; 1601. Sliding rod; 1602. Traction rod one; 1603. Traction rod two; 17. Hanging ring; 18. Spring; 19. Slide groove; 20. Rotating shaft; 21. Mounting groove. Detailed Implementation

[0021] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings. The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and / or letters in different examples. This repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. It should be noted that the components illustrated in the drawings are not necessarily drawn to scale. The present invention omits descriptions of well-known components and processing techniques and processes to avoid unnecessarily limiting the present invention. The terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate orientation or positional relationships based on the orientation or positional relationships shown in the drawings, and 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, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Example 1: This implementation example Figure 1-4 As shown, a RAP fine screening mechanism is provided, including a frame 1, a drive assembly, a screening box 2, and a discharge plate 3. The screening box 2 is rotatably mounted at both ends within the frame 1, and the discharge plate 3 is rotatably mounted at the bottom of the screening box 2. A screening mesh 201 is installed on the bottom wall of the screening box 2. The drive assembly is installed on the top of the side wall of the frame 1. The output end of the drive assembly is connected to the screening box 2 and the discharge plate 3. The drive assembly drives the screening box 2 and the discharge plate 3 to perform screening and discharge respectively. The screening box 2 can achieve automatic screening under the drive of the drive assembly, and the discharge plate 3 can achieve automatic discharge under the drive of the drive assembly, without manual intervention, thus improving discharge efficiency. The equipment has a simple structure, low energy consumption, and higher efficiency.

[0023] The drive assembly includes a motor 4, a driving pulley 5, a driven pulley 6, a transmission belt 7, a first connecting unit, and a second connecting unit. The motor 4 is mounted on the top of the outer wall of the frame 1. The driving pulley 5 and driven pulley 6 are mounted on the top wall of the frame 1 and connected by the transmission belt 7. The output end of the motor 4 is connected to the driving pulley 5. The first connecting unit is eccentrically mounted on the driving pulley 5 and connects to the discharge plate 3. The second connecting unit is eccentrically mounted on the driven pulley 6 and connects to the screening box 2. The drive assembly also includes a tensioning wheel, which is an existing mechanism (not shown in the figure) and will not be elaborated further. This device is compact and efficient, driving both the screening box 2 and the discharge plate 3 simultaneously with a single motor 4, eliminating the need for multiple additional power sources, simplifying the overall structure, reducing energy consumption, making the equipment more compact, and saving installation space. The belt drive provides smooth transmission and low noise. Furthermore, the hinged connections of the connecting units ensure flexibility and stability of movement.

[0024] The second connecting unit includes a first support rod 8, a connecting rod 9, a V-shaped rod 10, and a second support rod 11. The first support rod 8 is eccentrically mounted on the driven pulley 6. The connecting rod 9 is hinged to the first support rod 8. One end of the connecting rod 9, away from the first support rod 8, is hinged to one end of the V-shaped rod 10. The other end of the V-shaped rod 10 is hinged to the screening box 2. The second support rod 11 is located on the inner wall of the frame 1 and below the transmission belt 7. The bottom of the V-shaped rod 10 is rotatably mounted on the second support rod 11. The connection between the first support rod 8 and the driven pulley 6 is an existing structure and will not be described in detail here. Under the drive of the second connecting unit, the screening box 2 can achieve effective shaking screening action, which can perform fine screening of RAP materials and improve screening quality.

[0025] The first connecting unit includes an L-shaped rotating rod 12, which is eccentrically mounted on the drive pulley 5. The bottom of the L-shaped rotating rod 12 is hinged to the discharge plate 3. The connection between the L-shaped rotating rod 12 and the drive pulley 5 is an existing structure and will not be described in detail here.

[0026] The top and front face of the frame 1 are open, and a guide plate 13 is also installed inside the frame 1. The guide plate 13 is inclined and installed at the bottom of the screening box 2. The height of the end of the guide plate 13 near the opening is lower than the height of the end away from the opening. The discharge plate 3 is rotatably installed at the bottom end of the guide plate 13 near the opening. The guide plate 13 can guide the screened material to flow smoothly to the discharge plate 3, further ensuring the smoothness of the discharge.

[0027] To ensure that the screened RAP enters the guide plate 13, prevent the material from leaking out from both sides of the guide plate 13 and prevent it from falling into the frame 1, baffles 14 are provided on both sides of the guide plate 13, and the frontal projection area of ​​the bottom plate of the guide plate 13 is larger than the frontal projection area of ​​the screening screen 201.

[0028] Example 2: In this embodiment, as Figure 5-6 As shown, the device also includes a fixing assembly, which includes a hook 15, a stop bar 16, and a hanging ring 17. An installation groove 21 is formed on the outer edge of the inner side wall of the frame 1. The bottom wall of the installation groove 21 is rotatably connected to one end of the hook 15 in a horizontal direction. A sliding groove 19 is formed on the bottom wall of the installation groove 21 in a horizontal direction, and the stop bar 16 is installed within the sliding groove 19. A hanging ring 17 is installed at the side end of the discharge plate 3. The free end of the hook 15 rotates and engages with the hanging ring 17, locking itself to the bottom of the hook 15 and the stop bar 16. Two sets of fixing assemblies can be provided, located on both sides of the opening at the front face of the frame 1. The fixing assemblies can reliably lock the discharge plate 3 when the equipment is not in use, preventing accidental opening and reducing space occupation.

[0029] The hook 15 is C-shaped, with its opening facing towards the frame 1. The stop bar 16 includes a sliding rod 1601, a first traction rod 1602, and a second traction rod 1603. The first traction rod 1602 is slidably mounted on the side of the slide groove 19 closest to the hook 15. A spring 18 is mounted on the inner wall of the slide groove 19 away from the hook 15. The spring 18 is connected to the first traction rod 1602. The first traction rod 1602 is mounted on the slide rod 1601 perpendicular to its length. The second traction rod 1603 is connected to the first traction rod 1602 along the length of the slide rod 1601.

[0030] A rotating shaft 20 is provided on the bottom wall of the mounting groove 21. One end of the hook 15 is rotated to be mounted on the bottom wall of the mounting groove 21 via the rotating shaft 20, and the other end is provided with a "V"-shaped card interface 1501. The bottom of the sliding rod 1601 is a "V"-shaped tip, and the "V"-shaped tip is adapted to the card interface 1501 of the hook 15. The discharge plate 3 is locked by a fixing component. Specifically, the hook 15 is rotated so that its free end engages with the hanging ring 17 on the discharge plate 3. At this time, the locking interface 1501 at the bottom of the hook 15 cooperates with the "V"-shaped tip at the bottom of the sliding rod 1601 in the stop rod 16. Under the action of the spring 18, the stop rod 16 locks the hook 15 and fixes the discharge plate 3. When discharge is required, the second traction rod 1603 is pulled, which drives the first traction rod 1602 and the sliding rod 1601 to slide in the slide groove 19, so that the "V"-shaped tip at the bottom of the sliding rod 1601 disengages from the locking interface 1501 of the hook 15, releasing the lock on the hook 15. Then, the hook 15 is rotated to separate it from the hanging ring 17.

[0031] The usage process of this organization: The RAP material to be screened is placed into the screening box 2. The motor 4 is started, and the motor 4 drives the drive pulley 5 to rotate. The drive pulley 5 drives the driven pulley 6 to rotate through the transmission belt 7. When the driven pulley 6 rotates, the first support rod 8 eccentrically set on it makes a circular motion, which drives the V-shaped rod 10 to swing back and forth around the second support rod 11 through the connecting rod 9. The swing of the V-shaped rod 10 causes the two ends of the screening box 2 to swing back and forth within the frame 1, realizing the shaking screening action of the screening box 2. The screened material falls onto the guide plate 13 below. At the same time, when the drive pulley 5 rotates, the L-shaped rotating rod 12 eccentrically set on it makes a circular motion, which drives the discharge plate 3 to swing back and forth up and down to discharge the material.

[0032] Although the specific embodiments of the utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the utility model. Based on the technical solution of the utility model, various modifications or variations that can be made by those skilled in the art without creative effort are still within the scope of protection of the utility model.

Claims

1. A RAP fine screening mechanism, characterized in that: The machine includes a frame (1), a drive assembly, a screening box (2) and a discharge plate (3). The two ends of the screening box (2) are rotatably set inside the frame (1). A screening screen (201) is set on the bottom wall of the screening box (2). The discharge plate (3) is rotatably set at the bottom of the screening box (2). The drive assembly is set on the top of the side wall of the frame (1). The output end of the drive assembly is connected to the screening box (2) and the discharge plate (3). The drive assembly drives the screening box (2) and the discharge plate (3) to screen and discharge materials respectively.

2. The RAP fine screening mechanism according to claim 1, characterized in that: The drive assembly includes a motor (4), a drive pulley (5), a driven pulley (6), a transmission belt (7), a first connecting unit, and a second connecting unit. The motor (4) is located on the top of the outer wall of the frame (1). The drive pulley (5) and the driven pulley (6) are located on the top wall of the frame (1) and connected by the transmission belt (7). The output end of the motor (4) is connected to the drive pulley (5). The first connecting unit is eccentrically arranged on the drive pulley (5) and is connected to the discharge plate (3). The second connecting unit is eccentrically arranged on the driven pulley (6) and is connected to the screening box (2).

3. The RAP fine screening mechanism according to claim 2, characterized in that: The second connecting unit includes a first support rod (8), a connecting rod (9), a V-shaped rod (10), and a second support rod (11). The first support rod (8) is eccentrically mounted on the driven pulley (6). The connecting rod (9) is hinged to the first support rod (8). One end of the connecting rod (9) away from the first support rod (8) is hinged to one end of the V-shaped rod (10). The other end of the V-shaped rod (10) is hinged to the screening box (2). The second support rod (11) is mounted on the inner wall of the frame (1) and located below the transmission belt (7). The bottom of the V-shaped rod (10) is rotatably mounted on the second support rod (11).

4. The RAP fine screening mechanism according to claim 2 or 3, characterized in that: The first connecting unit includes an L-shaped rotating rod (12), which is eccentrically mounted on the drive pulley (5), and the bottom of the L-shaped rotating rod (12) is hinged to the discharge plate (3).

5. The RAP fine screening mechanism according to claim 1 or 2, characterized in that: The top and front face of the frame (1) are set with openings. A guide plate (13) is also set inside the frame (1). The guide plate (13) is set at an angle at the bottom of the screening box (2). The height of the end of the guide plate (13) near the opening is lower than the height of the end away from the opening. The discharge plate (3) is set at the bottom of the guide plate (13) near the opening.

6. The RAP fine screening mechanism according to claim 5, characterized in that: Baffles (14) are provided on both sides of the guide plate (13), and the positive projection area of ​​the bottom plate of the guide plate (13) is greater than the positive projection area of ​​the screening screen (201).

7. The RAP fine screening mechanism according to claim 1 or 2, characterized in that: It also includes a fixing component, which includes a hook (15), a stop bar (16) and a hanging ring (17). An installation groove (21) is opened on the outer edge of the inner side wall of the frame (1). The bottom wall of the installation groove (21) is rotatably connected to one end of the hook (15). A sliding groove (19) is opened on the bottom wall of the installation groove (21) in the horizontal direction. A stop bar (16) is set in the sliding groove (19). A hanging ring (17) is set on the side end of the discharge plate (3). The free end of the hook (15) rotates and hooks the hanging ring (17) to the bottom of the hook (15) and self-locks with the stop bar (16).

8. The RAP fine screening mechanism according to claim 7, characterized in that: The hook (15) is C-shaped, with the opening of the hook (15) facing towards the frame (1). The stop bar (16) includes a sliding rod (1601), a first traction rod (1602), and a second traction rod (1603). The first traction rod (1602) is slidably installed on the side of the slide groove (19) near the hook (15). A spring (18) is installed on the inner wall of the side of the slide groove (19) away from the hook (15). The spring (18) is connected to the first traction rod (1602). The first traction rod (1602) is installed on the slide rod (1601) perpendicular to the length direction of the sliding rod (1601). The second traction rod (1603) is connected to the first traction rod (1602) along the length direction parallel to the sliding rod (1601).

9. The RAP fine screening mechanism according to claim 8, characterized in that: A rotating shaft (20) is provided on the bottom wall of the mounting groove (21). One end of the hook (15) is rotated to the bottom wall of the mounting groove (21) via the rotating shaft (20), and the other end is provided with a "V" shaped card interface (1501). The bottom of the sliding rod (1601) is a "V" shaped tip, and the "V" shaped tip is adapted to the card interface (1501) of the hook (15).

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