An asphalt milling material stripping and screening device

Abstract

This utility model provides an asphalt milling material stripping and screening device, including a frame, a discharge hopper at the top of the frame, a box at the top of the discharge hopper, a feed pipe and a connecting pipe at both ends of the box, a feed hopper at the top of the connecting pipe, a drive box at the side of the feed pipe, a drive assembly inside the drive box, the output end of the drive assembly passing through the feed pipe and the box and connected to a dispersing assembly, and a discharge pipe at the bottom of the connecting pipe at an angle. This utility model has the following advantages: through the design of the dispersing assembly, asphalt milling material can be stripped and dispersed. When the asphalt milling material to be processed is fed into the feed pipe through the feed hopper, under the action of the spiral blades, the asphalt milling material is driven into the cavity. Subsequently, under the rotation of several dispersing plates, the asphalt milling material can be crushed and separated.

Description

Technical Field

[0001] This utility model is an asphalt milling material stripping and screening device, belonging to the field of asphalt milling material processing technology. Background Technology

[0002] Asphalt pavements are affected by natural conditions such as sunlight, rainfall, and air, as well as the loads from passing vehicles. After a certain service life, the asphalt undergoes a series of qualitative changes, including volatilization and oxidation. The performance of aged asphalt deteriorates significantly, leading to dryness, embrittlement, and cracking, greatly reducing traffic safety. Therefore, aged asphalt pavements need repair or replacement.

[0003] In view of the need to conserve natural resources and protect the natural environment, asphalt pavement recycling technology is usually adopted in road overhaul projects. This involves scraping the aged road surface to obtain asphalt milling material, which is then crushed and screened by specialized equipment. The mixture is then mixed with recycling agents, new asphalt, and new aggregates in a certain proportion to form a recycled asphalt mixture that meets the performance requirements of asphalt pavement, and then repaved back onto the road surface.

[0004] Existing asphalt recycling equipment only scrapes off a layer of damaged asphalt sand pavement with a milling machine and then crushes the asphalt milling material. It is difficult to effectively separate the scraped asphalt aggregate mixture, thereby reducing the utilization rate of the asphalt milling material and greatly increasing the cost of road surface recycling and renovation. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an asphalt milling material stripping and screening device.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: An asphalt milling material stripping and screening device includes a frame, a discharge hopper at the top of the frame, a housing at the top of the discharge hopper, a feed pipe and a connecting pipe at both ends of the housing, a feed hopper at the top of the connecting pipe, a drive box at the side of the feed pipe, a drive assembly inside the drive box, an output end of the drive assembly passing through the feed pipe and the housing and connected to a dispersing assembly, a discharge pipe at the bottom of the connecting pipe at an incline, the top end of the discharge pipe being connected to the bottom end of the connecting pipe by bolts, the discharge pipe having a circular cross-section, and a screen connected inside the discharge pipe by a screening assembly.

[0007] Furthermore, the drive assembly includes a motor 1 fixedly connected to the bottom of the outer side of the drive box. The output end of the motor 1 extends into the drive box and is connected to a pulley 1. A connecting rod is rotatably connected to the top of the drive box. The end of the connecting rod is connected to a pulley 2. The pulley 2 is located above the pulley 1. The pulley 2 and the pulley 1 are connected by a belt.

[0008] Furthermore, the dispersing assembly includes a cavity located inside the housing, the feed pipe is connected to the cavity, a dispersing rod is provided inside the cavity, the outer surface of the dispersing rod is provided with a plurality of uniformly distributed dispersing plates, the connecting rod extends through the feed pipe and the outer surface is provided with helical blades, and the end of the connecting rod away from the second pulley extends through the cavity and is connected to the dispersing rod.

[0009] Furthermore, the screening assembly includes a second motor fixedly connected to the outside of the connecting pipe. The output end of the second motor is connected to a rotating rod. The end of the rotating rod passes through the connecting pipe and connects to a cam. A fixing block is fixedly connected to the inner wall of the connecting pipe. A sliding groove is formed in the fixing block. A moving rod is slidably connected in the sliding groove. The bottom end of the moving rod passes through the outside of the fixing block and connects to the top end of the extrusion plate. The bottom end of the extrusion plate presses against the outer surface of the cam. A fixing plate is fixedly connected to the outer surface of the moving rod located in the sliding groove. A spring is sleeved on the outer surface of the moving rod. One end of the spring presses against the end of the fixing plate, and the other end of the spring presses against the inner top of the sliding groove. The top end of the moving rod passes through the fixing block and presses against the bottom end of the screen.

[0010] Furthermore, the top of the screen is provided with several protrusions, and the protrusions are provided with screen holes that communicate with the screen. Movable grooves are provided on both sides of the connecting pipe. Both ends of the screen pass through the movable grooves and are connected to the second spring. The other end of the second spring is pressed against the bottom of the movable groove.

[0011] Furthermore, the connecting pipe is equipped with a solenoid valve, and the bottom of the frame is equipped with casters at all four ends. A control box is located at the bottom side of the frame. A slot is opened at the bottom of the box, and the top of the slot communicates with the cavity. A switch door is located at the top inside the slot, and the switch door seals the space between the cavity and the slot. The bottom and side of the slot both penetrate the box. An electric telescopic rod is provided on the side of the box, and the output end of the electric telescopic rod passes through the slot and connects to the side of the switch door.

[0012] The beneficial effects of this utility model are: The design of the dispersion component allows for the stripping and dispersion of asphalt milling material. The asphalt milling material to be processed is fed into the feed pipe through the feed hopper. Under the action of the spiral blades, the asphalt milling material is driven into the cavity. Subsequently, the asphalt milling material can be crushed and separated by the rotation of several dispersion plates.

[0013] Through the design of the screening component, after the asphalt milling material has been crushed for a period of time, the solenoid valve and motor two on the connecting pipe can be activated. Motor two drives the rotating rod and cam to rotate. The rotating cam squeezes the extrusion plate and moving rod. Under the action of spring one and spring two, the rotation of motor two can drive the screen to run repeatedly, thereby screening out the fine sand and soil in the milling material, so that the separated stones remain in the cavity for subsequent use.

[0014] The design of the door allows for the discharge of cleaned stones from the cavity by activating an electric telescopic rod, whose output end drives the door to move.

[0015] The design of the drive component allows it to drive the connecting rod and the dispersing rod to rotate, which in turn drives the spiral blades to rotate, guiding the asphalt milling material fed into the feed pipe into the cavity, and also driving the dispersing plate to rotate, thus dispersing the asphalt milling material. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments 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.

[0017] Figure 1 This is a schematic diagram of the overall structure of an asphalt milling material stripping and screening device according to the present invention; Figure 2 This is a schematic diagram of the removal box structure of an asphalt milling material stripping and screening device according to the present invention; Figure 3 This is a schematic diagram of the internal structure of an asphalt milling material stripping and screening device according to the present invention; Figure 4 This is a schematic diagram of the dispersing component structure of an asphalt milling material stripping and screening device according to the present invention; Figure 5 This is a schematic diagram of the screening component structure of an asphalt milling material stripping and screening device according to the present invention; Figure 6 This is a cross-sectional view of the screening component of an asphalt milling material stripping and screening device according to the present invention. Figure 7 This is a side sectional view of the connecting pipe of the asphalt milling material stripping and screening device of this utility model; Figure 8 This is a side sectional view of the connecting pipe of the asphalt milling material stripping and screening device of this utility model.

[0018] In the diagram: 1. Frame; 2. Housing; 3. Feed pipe; 4. Feed hopper; 5. Motor 1; 6. Pulley 1; 7. Pulley 2; 8. Caster wheel; 9. Connecting rod; 10. Spiral blade; 11. Dispersing rod; 12. Dispersing plate; 13. Connecting pipe; 14. Discharge pipe; 15. Screen; 16. Discharge hopper; 17. Cavity; 18. Drive box; 19. Opening and closing door; 20. Control box; 21. Motor 2; 22. Rotating rod; 23. Cam; 24. Extrusion plate; 25. Fixed block; 26. Slide groove; 27. Moving rod; 28. Fixed plate; 29. ​​Spring 1; 30. Protrusion; 31. Movable groove; 32. Spring 2; 33. Slot; 34. Electric telescopic rod. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-8 This utility model provides a technical solution for an asphalt milling material stripping and screening device, including a frame 1. The top of the frame 1 is provided with a discharge hopper 16. The top of the discharge hopper 16 is provided with a box 2. The two ends of the box 2 are respectively provided with a feed pipe 3 and a connecting pipe 13. The top of the connecting pipe 13 is provided with a feed hopper 4. The side of the feed pipe 3 is provided with a drive box 18. The drive box 18 is provided with a drive assembly. The output end of the drive assembly passes through the feed pipe 3 and the box 2 and is connected to a dispersing assembly. The bottom end of the connecting pipe 13 is inclinedly provided with a discharge pipe 14. The top end of the discharge pipe 14 is connected to the bottom end of the connecting pipe 13 by bolts. The cross-section of the discharge pipe 14 is circular. The inside of the discharge pipe 14 is connected to a screen 15 through a screening assembly.

[0021] See Figure 1-7The drive assembly includes a motor 5 fixedly connected to the bottom of the outer side of the drive box 18. The output end of the motor 5 extends into the drive box 18 and is connected to a pulley 6. A connecting rod 9 is rotatably connected to the top of the drive box 18. The end of the connecting rod 9 is connected to a pulley 7. The pulley 7 is located above the pulley 6. The pulley 7 and the pulley 6 are connected by a belt. Through the design of the drive assembly, the operation of the drive assembly can drive the connecting rod 9 and the dispersing rod 11 to rotate, which in turn can drive the spiral blade 10 to rotate, guide the asphalt milling material fed into the feed pipe 3 into the cavity 17, and drive the dispersing plate 12 to rotate, thus dispersing the asphalt milling material.

[0022] See Figure 1-7 The dispersing component includes a cavity 17 located inside the housing 2. The feed pipe 3 is connected to the cavity 17. A dispersing rod 11 is provided inside the cavity 17. The outer surface of the dispersing rod 11 is provided with a plurality of uniformly distributed dispersing plates 12. A connecting rod 9 extends into the feed pipe 3 and is provided with a spiral blade 10 on its outer surface. The end of the connecting rod 9 away from the pulley 7 extends into the cavity 17 and is connected to the dispersing rod 11. Through the design of the dispersing component, the asphalt milling material can be peeled off and dispersed. When the asphalt milling material to be processed is fed into the feed pipe 3 through the feed hopper 4, the asphalt milling material is driven into the cavity 17 under the action of the spiral blade 10. Subsequently, the asphalt milling material can be crushed and separated under the rotation of the plurality of dispersing plates 12.

[0023] See Figure 1-7The screening assembly includes a second motor 21 fixedly connected to the outside of the connecting pipe 13. A rotating rod 22 is connected to the output end of the second motor 21. The end of the rotating rod 22 passes through the connecting pipe 13 and connects to a cam 23. A fixing block 25 is fixedly connected to the inner wall of the connecting pipe 13. A groove 26 is formed inside the fixing block 25. A moving rod 27 is slidably connected inside the groove 26. The bottom end of the moving rod 27 passes through the fixing block 25 and connects to the top end of an extrusion plate 24. The bottom end of the extrusion plate 24 presses against the outer surface of the cam 23. A fixing plate 28 is fixedly connected to the outer surface of the moving rod 27 within the groove 26. A spring 29 is sleeved on the outer surface of the moving rod 27. One end of the spring 29 presses against the end of the fixing plate 28, and the other end of the spring 29 presses against the inner top of the groove 26. The top end of the moving rod 27 passes through the fixing block 25. The bottom end of the screen 15 is pressed against the screen. The top of the screen 15 is provided with several protrusions 30. The protrusions 30 are provided with screen holes that communicate with the screen 15. Movable grooves 31 are provided on both sides of the connecting pipe 13. Both ends of the screen 15 pass through the movable grooves 31 and are connected to the second spring 32. The other end of the second spring 32 is pressed against the bottom of the movable groove 31. Through the design of the screening component, after the asphalt milling material has been crushed for a period of time, the solenoid valve and the second motor 21 on the connecting pipe 13 can be activated. The second motor 21 drives the rotating rod 22 and the cam 23 to rotate. The rotating cam 23 presses the pressing plate 24 and the moving rod 27 to move. Under the action of the first spring 29 and the second spring 32, the screen 15 can be driven to run repeatedly as the second motor 21 rotates, thereby screening out the fine sand and soil in the milling material, so that the separated stones remain in the cavity 17 for subsequent use.

[0024] See Figure 1-7 The connecting pipe 13 is equipped with a solenoid valve. The bottom of the frame 1 is equipped with casters 8 at all four ends. The bottom side of the frame 1 is equipped with a control box 20. The bottom of the box 2 is provided with a slot 33. The top of the slot 33 is connected to the cavity 17. The top of the slot 33 is provided with a switch door 19. The switch door 19 seals the space between the cavity 17 and the slot 33. The bottom and side of the slot 33 penetrate the box 2. The side of the box 2 is provided with an electric telescopic rod 34. The output end of the electric telescopic rod 34 penetrates the slot 33 and connects to the side of the switch door 19. Through the design of the switch door 19, by activating the electric telescopic rod 34, the output end of the electric telescopic rod 34 drives the switch door 19 to move, so that the stones separated in the cavity 17 can be discharged.

[0025] The circuits, electronic components, controllers, and modules involved are all existing technologies that can be fully implemented by those skilled in the art, so there is no need to elaborate. The content protected by this application does not involve any improvement to the software and methods.

[0026] In operation, motor 5 is started via control box 20. Motor 5 drives pulley 6 to rotate, which in turn drives pulley 7 via a belt. The rotation of pulley 7 drives connecting rod 9 and dispersing rod 11 to rotate. Connecting rod 9 drives spiral blade 10 to rotate, and dispersing rod 11 drives several dispersing plates 12 to rotate. The asphalt milling material to be processed is fed into feed pipe 3 through feed hopper 4. Under the action of spiral blade 10, the asphalt milling material is driven into cavity 17. Subsequently, the asphalt milling material is crushed and separated under the rotation of several dispersing plates 12. After the asphalt milling material has been crushed for a period of time, the solenoid valve on connecting pipe 13 and motor 21 can be activated. Motor 21 drives rotating rod 22 and cam 23 to rotate. Cam 23 rotates and squeezes extrusion plate 24 and moving rod 27. As moving rod 27 moves upward, it drives screen 15 to move upward. At this time, screen 15 pulls spring 22. When moving rod 27 moves downward, screen 15 moves downward under the action of spring 22. At this time, under the action of spring 19 and spring 22, the rotation of motor 21 can drive screen 15 to run repeatedly, thereby screening out fine sand and soil in milling material. The separated stones remain in cavity 17. Then, by starting switch door 19, the recyclable stones in cavity 17 can be guided to discharge hopper 16.

[0027] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for stripping and screening asphalt milling material, characterized in that, The machine includes a frame (1), a discharge hopper (16) at the top of the frame (1), a box (2) at the top of the discharge hopper (16), a feed pipe (3) and a connecting pipe (13) at both ends of the box (2), a feed hopper (4) at the top of the connecting pipe (13), a drive box (18) on the side of the feed pipe (3), a drive assembly inside the drive box (18), the output end of the drive assembly passing through the feed pipe (3) and the box (2) and connected to the dispersing assembly, a discharge pipe (14) at the bottom of the connecting pipe (13) at an incline, the top end of the discharge pipe (14) being connected to the bottom end of the connecting pipe (13) by bolts, the cross-section of the discharge pipe (14) being circular, and a screen (15) connected inside the discharge pipe (14) by a screening assembly.

2. The asphalt milling material stripping and screening device according to claim 1, characterized in that, The drive assembly includes a motor (5) fixedly connected to the bottom of the outside of the drive box (18). The output end of the motor (5) extends into the drive box (18) and is connected to a pulley (6). A connecting rod (9) is rotatably connected to the top of the drive box (18). The end of the connecting rod (9) is connected to a pulley (7). The pulley (7) is located above the pulley (6). The pulley (7) and the pulley (6) are connected by a belt.

3. The asphalt milling material stripping and screening device according to claim 2, characterized in that, The dispersing assembly includes a cavity (17) located inside the housing (2), the feed pipe (3) is connected to the cavity (17), a dispersing rod (11) is provided inside the cavity (17), the outer surface of the dispersing rod (11) is provided with a plurality of uniformly distributed dispersing plates (12), the connecting rod (9) extends into the feed pipe (3) and the outer surface is provided with spiral blades (10), the end of the connecting rod (9) away from the pulley (7) extends into the cavity (17) and is connected to the dispersing rod (11).

4. The asphalt milling material stripping and screening device according to claim 3, characterized in that, The screening assembly includes a second motor (21) fixedly connected to the outside of the connecting pipe (13). The output end of the second motor (21) is connected to a rotating rod (22). The end of the rotating rod (22) passes through the connecting pipe (13) and is connected to a cam (23). A fixing block (25) is fixedly connected to the inner wall of the connecting pipe (13). A sliding groove (26) is provided in the fixing block (25). A moving rod (27) is slidably connected in the sliding groove (26). The bottom end of the moving rod (27) passes through the outside of the fixing block (25) and is connected to the top of the extrusion plate (24). The bottom end of the extrusion plate (24) is pressed against the outer surface of the cam (23). The outer surface of the moving rod (27) located in the slide groove (26) is fixedly connected to the fixing plate (28). The outer surface of the moving rod (27) is fitted with a spring (29). One end of the spring (29) is pressed against the end of the fixing plate (28). The other end of the spring (29) is pressed against the inner top of the slide groove (26). The top end of the moving rod (27) passes through the fixing block (25) and is pressed against the bottom end of the screen (15).

5. The asphalt milling material stripping and screening device according to claim 4, characterized in that, The top of the screen (15) is provided with several protrusions (30), and the protrusions (30) are provided with screen holes that communicate with the screen (15). The connecting pipe (13) has movable grooves (31) on both sides. Both ends of the screen (15) pass through the movable grooves (31) and are connected to the second spring (32). The other end of the second spring (32) is pressed against the bottom of the movable groove (31).

6. The asphalt milling material stripping and screening device according to claim 5, characterized in that, The connecting pipe (13) is equipped with a solenoid valve. The bottom four ends of the frame (1) are equipped with casters (8). The bottom side of the frame (1) is equipped with a control box (20). The bottom end of the box (2) is provided with a slot (33). The top of the slot (33) is connected to the cavity (17). The top of the slot (33) is provided with a switch door (19). The switch door (19) seals the space between the cavity (17) and the slot (33). The bottom and side of the slot (33) both penetrate the box (2). The side of the box (2) is provided with an electric telescopic rod (34). The output end of the electric telescopic rod (34) penetrates the slot (33) and connects to the side of the switch door (19).

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