A screening device for recycling asphalt milling material waste

Abstract

The utility model relates to bituminous milling material waste recovery technical field especially relates to a kind of screening device for bituminous milling material waste recovery.The utility model discloses technical scheme as follows: a kind of screening device for bituminous milling material waste recovery, including support frame, shell, inclined plate and feed inlet etc., shell is fixedly connected on support frame, feed groove is symmetrically set up in shell top, inclined plate is fixedly connected at the two feed grooves of shell, feed inlet is set up in shell top.The utility model is driven by first motor to make broken wheel high-speed rotation broken waste, after being broken, material is screened by first filter plate, large particle slides into material collecting box, first rotating shaft drives cam to make filter plate vibrate, after further screening by second filter plate, small particle falls into collection frame, large particle backflow is processed again, the whole process is automated, reduce waste accumulation, realize resource utilization, reduce environmental pollution, improve work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of asphalt milling waste recycling technology, and in particular to a screening device for asphalt milling waste recycling. Background Technology

[0002] Asphalt milling mix refers to materials recycled from old asphalt pavements after being cut and crushed by a milling machine. These materials typically contain asphalt binders and aggregates (such as crushed stone and sand), which are removed during road maintenance and renovation. The application of milling mix not only helps reduce construction waste but also effectively reduces the cost of new project construction.

[0003] After screening, crushing, and recycling, milled asphalt can be reused in road construction and other infrastructure projects. However, during the screening process of asphalt milled asphalt, if large pieces of waste (such as large pieces of asphalt or aggregate that are not completely crushed) are encountered, they may not be able to pass through the mesh of the screen, causing the material to accumulate on the screen and form a blockage. The blockage will reduce screening efficiency, prolong processing time, and may cause subsequent materials to fail to be screened properly. Large pieces of waste will cause additional pressure and wear on the screen during the screening process, especially when these wastes have sharp edges.

[0004] Therefore, it is necessary to design a screening device for recycling asphalt milling waste to solve the above-mentioned technical problems. Utility Model Content

[0005] To overcome the above-mentioned shortcomings, the technical problem to be solved is to provide a screening device for recycling asphalt milling waste.

[0006] The technical solution of this utility model is as follows: a screening device for recycling asphalt milling waste, comprising a support frame, a shell, inclined plates, a feed inlet, a first motor, a first rotating shaft, gears, a crushing wheel, a first filter plate, a first guide rod, a first spring, a connecting rod, and a second filter plate. The shell is fixedly connected to the support frame. The top of the shell has symmetrically arranged feed troughs, and inclined plates are fixedly connected to both feed troughs. A feed inlet is located at the top of the shell. The first motor is fixedly connected to the front of the shell. First rotating shafts are rotatably connected to both sides inside the shell. The front end of the first rotating shaft located on one side of the shell is fixedly connected to the output shaft of the first motor. The two first... Gears located outside the housing are fixedly connected to each of the two rotating shafts, and the two gears mesh with each other. Crushing wheels located inside the housing are fixedly connected to each of the two first rotating shafts, and the two crushing wheels mesh with each other. A first filter plate is slidably connected inside the housing. First guide rods are fixedly connected symmetrically on the front side and in the middle of one side of the housing. Each first guide rod slides on the first filter plate. Multiple first springs are connected between the housing and the first filter plate. Each first spring is wound around the corresponding first guide rod. Connecting rods are fixedly connected symmetrically on both sides of the bottom of the first filter plate. A second filter plate is fixedly connected between the bottoms of the multiple connecting rods. The second filter plate slides inside the housing.

[0007] In a preferred embodiment of this invention, the number of first filter plates is less than the number of second filter plates.

[0008] As a preferred technical solution of this utility model, it also includes a collection frame and a handle. The collection frame is placed at the lower part of the support frame and is located below the second filter plate. The collection frame is fixedly connected to both sides of the collection frame.

[0009] As a preferred technical solution of this utility model, it also includes a first transmission wheel, a second rotating shaft, a cam, a second transmission wheel and a belt. The first transmission wheel is fixedly connected to one end of each of the two first rotating shafts. The second rotating shaft is rotatably connected to both sides of the rear part of the housing. The cam is fixedly connected to one end of each of the two second rotating shafts. The two cams abut against the first filter plate. The second transmission wheel is fixedly connected to one end of each of the two second rotating shafts. The belt is wound between the two first transmission wheels and the corresponding second transmission wheel.

[0010] As a preferred technical solution of this utility model, it also includes a second motor, a first fixed frame, a cylinder, an auger, a discharge guide plate, and a protective frame. The second motor is fixedly connected to the lower part of the support frame, and the first fixed frame is fixedly connected to the upper part of the support frame. The cylinder is fixedly connected inside the first fixed frame. An auger is fixedly connected to one end of the output shaft of the second motor, and the auger is located inside the cylinder. The discharge guide plate is connected and communicates with the upper part of the cylinder. The protective frame is fixedly connected to the lower part of the discharge guide plate. The protective frame is connected and communicates with the feed chute on one side of the shell.

[0011] As a preferred technical solution of this utility model, it also includes a second fixed frame, a third motor, a screw, a second guide rod, and a receiving box. The second fixed frame is fixedly connected to the upper part of the housing, the third motor is fixedly connected to the top of the second fixed frame, the screw is fixedly connected to one end of the output shaft of the third motor, the second guide rod is fixedly connected to the upper part of the second fixed frame, the receiving box is connected between the second guide rod and the screw, and the second guide rod is slidably connected to the receiving box, and the screw is threadedly connected to the receiving box.

[0012] As a preferred technical solution of this utility model, it also includes guide blocks, baffles, third guide rods, connecting frames, second springs, and feeding plates. Guide blocks are slidably connected to both sides of the right side of the receiving box. Baffles are fixedly connected between two guide blocks. Multiple third guide rods are fixedly connected in a linear array at the bottom of the baffles. A connecting frame is fixedly connected to the bottom of the receiving box. Multiple second springs are connected between the connecting frame and the baffles. Each second spring is wound around a corresponding third guide rod. The connecting frame is slidably connected to the three third guide rods. The feeding plate is connected and communicated with the top of the housing.

[0013] Beneficial effects: 1. This utility model uses a first motor to drive the crushing wheel to rotate at high speed to crush waste materials. The crushed material is screened by the first filter plate. Large particles slide into the collection box. The first rotating shaft drives the cam to vibrate the filter plate. Small particles that are further screened by the second filter plate fall into the collection frame. Large particles are returned for further processing. The whole process is automated, reducing waste accumulation, realizing resource utilization, reducing environmental pollution, and improving work efficiency.

[0014] 2. This utility model uses a third motor to drive the screw to rotate, causing the receiving box to move along the guide rod, thereby realizing the automatic return processing of large particles. The feeding plate and the baffle work together to ensure that the waste material falls completely into the shell. The second spring resets the receiving box to ensure that it returns smoothly to the initial position. This reduces the need for manual intervention, improves the efficiency of waste treatment and resource utilization, reduces environmental pollution, and achieves a dual improvement in environmental protection and economic benefits.

[0015] 3. By starting the second motor, the auger rotates and transports the waste material back to the inclined plate, where it re-enters the crushing wheel for further crushing, thus achieving cyclic crushing and screening. This process greatly improves the thoroughness of waste treatment and resource recovery rate, and enhances work efficiency and environmental benefits. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a partial cross-sectional structural diagram of the support frame, shell, and inclined plate of this utility model.

[0018] Figure 3 for Figure 2 Rear view structural diagram.

[0019] Figure 4 This is a partial cross-sectional view of the components of this utility model, including the gear, the first rotating shaft, and the crushing wheel.

[0020] Figure 5 This is a partial cross-sectional view of the components of this utility model, including the discharge guide plate, protective frame, and first fixing frame.

[0021] Figure 6 This is a partial cross-sectional structural diagram of the baffle, guide block, and connecting frame of this utility model.

[0022] Figure 7 for Figure 6 Enlarged diagram of point A in the middle.

[0023] The components in the diagram are labeled as follows: 1-Support frame, 2-Shell, 3-Inclined plate, 4-Feed inlet, 5-First motor, 6-Gear, 7-First shaft, 8-Crushing wheel, 9-First filter plate, 10-First guide rod, 11-First spring, 12-Connecting rod, 13-Second filter plate, 14-Collection frame, 15-Handle, 16-Cam, 17-First transmission wheel, 18-Second transmission wheel, 19-Belt, 20-Second shaft, 21-Second motor, 22-Auger, 23-Cylinder, 24-Discharge guide plate, 25-Protective frame, 26-First fixed frame, 27-Third motor, 28-Screw, 29-Second guide rod, 30-Collection box, 31-Baffle, 32-Guide block, 33-Connecting frame, 34-Third guide rod, 35-Second spring, 36-Feeding plate, 37-Second fixed frame. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, but this does not limit the scope of protection and application of the present invention.

[0025] Example: A screening device for recycling asphalt milling waste, such as... Figures 1-7As shown, the device includes a support frame 1, a housing 2, an inclined plate 3, a feed inlet 4, a first motor 5, a first rotating shaft 7, a gear 6, a crushing wheel 8, a first filter plate 9, a first guide rod 10, a first spring 11, a connecting rod 12, and a second filter plate 13. The housing 2 is mounted on the upper part of the support frame 1 by screws. The top of the housing 2 has symmetrical feed slots on the left and right sides. Inclined plates 3, which guide waste material into the housing 2, are mounted on both feed slots by screws. A feed inlet 4 is located on the top of the housing 2. The first motor 5 is mounted on the front right side of the housing 2 by screws. First rotating shafts 7 are rotatably connected to both sides inside the housing 2. The front end of the first rotating shaft 7 on the right side of the housing 2 is connected to the output shaft of the first motor 5 via a coupling. Gears 6 located outside the housing 2 are welded onto both first rotating shafts 7. Gears 6 mesh with each other. Crushing wheels 8 located inside the housing 2 are installed on the two first rotating shafts 7 by screws. The two crushing wheels 8 mesh with each other. A first filter plate 9 with a left-low and right-high structure is slidably connected inside the housing 2. First guide rods 10 are installed on the left and right sides of the front side and the middle of the rear side of the housing 2 by screws. Each first guide rod 10 slides on the first filter plate 9. Three first springs 11 are connected between the housing 2 and the first filter plate 9. Each first spring 11 is wound around the corresponding first guide rod 10. Connecting rods 12 are welded symmetrically on the front and rear sides of the bottom of the first filter plate 9. A second filter plate 13 with a left-high and right-low structure is fixedly connected between the bottoms of the four connecting rods 12. The number of first filter plates 9 is less than the number of second filter plates 13. The second filter plates 13 slide inside the housing 2.

[0026] like Figures 1-4 As shown, it also includes a collection frame 14 and a handle 15. The collection frame 14 is placed at the bottom of the support frame 1. The collection frame 14 is located directly below the second filter plate 13. The handles 15 are installed on both the front and rear sides of the collection frame 14 by screws.

[0027] like Figure 2 , Figure 3 and Figure 4 As shown, it also includes a first drive wheel 17, a second rotating shaft 20, a cam 16, a second drive wheel 18, and a belt 19. The first drive wheel 17 is welded to one end of each of the two first rotating shafts 7 that protrude from the housing 2. The second rotating shafts 20 are rotatably connected to the left and right sides of the rear part of the housing 2. The cam 16 is welded to one end of each of the two second rotating shafts 20 that protrude from the housing 2. The two cams 16 abut against the first filter plate 9. The second drive wheel 18 is welded to one end of each of the two second rotating shafts 20 that protrudes from the housing 2. A belt 19 is wound between each of the two first drive wheels 17 and the corresponding second drive wheel 18.

[0028] like Figure 1 and Figure 5As shown, it also includes a second motor 21, a first fixing frame 26, a cylinder 23, an auger 22, a discharge guide plate 24, and a protective frame 25. The second motor 21 is installed on the lower right side of the support frame 1 by screws. The first fixing frame 26 is installed on the upper right side of the support frame 1 by screws. The cylinder 23 is installed inside the first fixing frame 26 by screws. The output shaft of the second motor 21 passes through one end of the cylinder 23 and is installed with an auger 22 by screws. The auger 22 is located inside the cylinder 23. The discharge guide plate 24 is connected and communicated to the upper left side of the cylinder 23. The protective frame 25 is installed on the lower side of the discharge guide plate 24 by screws. The protective frame 25 is connected and communicated with the feed chute on the left side of the housing 2.

[0029] like Figure 1 , Figure 6 and Figure 7 As shown, it also includes a second fixing frame 37, a third motor 27, a screw 28, a second guide rod 29, and a receiving box 30. The second fixing frame 37 is installed on the upper left side of the housing 2 by screws. The third motor 27 is installed on the top front side of the second fixing frame 37 by screws. The output shaft of the third motor 27 passes through the second fixing frame 37 and the screw 28 is welded to one end. The second guide rod 29 is welded to the upper rear side of the second fixing frame 37. The receiving box 30 is connected between the second guide rod 29 and the screw 28, and the second guide rod 29 is slidably connected to the receiving box 30. The screw 28 is threadedly connected to the receiving box 30.

[0030] like Figure 1 , Figure 6 and Figure 7 As shown, it also includes guide blocks 32, baffles 31, third guide rods 34, connecting frames 33, second springs 35, and feeding plates 36. Guide blocks 32 are slidably connected to the front and rear sides of the right side of the receiving box 30. Baffles 31 are welded between two guide blocks 32. Three third guide rods 34 are welded in a straight array at the bottom of the baffles 31. Connecting frames 33 are welded to the bottom of the receiving box 30. Three second springs 35 are connected between the connecting frames 33 and the baffles 31. Each second spring 35 is wound around the corresponding third guide rod 34. The connecting frames 33 are slidably connected to the three third guide rods 34. The top left side of the housing 2 is connected to and communicates with a feeding plate 36 with a structure that is higher on the left and lower on the right.

[0031] When this device is needed, waste material is first poured in through the feed inlet 4. Under gravity, the waste material falls between two meshing crushing wheels 8. After starting the first motor 5, the output shaft of the first motor 5 drives one of the first rotating shafts 7 to rotate. Under the transmission of two meshing gears 6, the other first rotating shaft 7 rotates, thereby causing the two crushing wheels 8 to rotate at high speed to crush the waste material. The crushed waste material falls onto the inclined first filter plate 9. Smaller particles can pass through the holes in the first filter plate 9 and fall down. At the same time, the first rotating shaft 7 drives the first transmission wheel 17 to rotate. The second transmission wheel 18, driven by the belt 19, causes the second rotating shaft 20 to rotate, which in turn causes the cam 16 to rotate. During the rotation of the cam 16, it interacts with... When the first filter plate 9 contacts, the first guide rod 10 moves upward, compressing the first spring 11. When the cam 16 disengages from the first filter plate 9, the first guide rod 10 moves downward, and the first spring 11 returns to its original position. This process repeats, causing the first filter plate 9 to vibrate up and down, which helps to screen more effectively. Large particles of waste that fail to pass through the first filter plate 9 will slide into the collection box 30, while waste that passes through the first filter plate 9 will fall onto the second filter plate 13. The second filter plate 13 is linked to the first filter plate 9 via the connecting rod 12, and it will also vibrate, allowing smaller waste to pass through the second filter plate 13 and fall into the collection frame 14. When the waste inside the collection frame 14 reaches a certain amount, it can be easily removed by pulling the handle 15 forward or backward. The collection box 14 cleans the waste. After cleaning, it is pushed back to its original position forward or backward. Large particles of waste that fail to pass through the second filter plate 13 will slide into the cylinder 23. For large particles of waste in the receiving box 30, when they accumulate to a certain amount, the third motor 27 is started. The output shaft of the third motor 27 drives the screw 28 to rotate clockwise, causing the receiving box 30 to move upward along the second guide rod 29. At this time, the feeding plate 36 contacts the guide block 32, and the baffle 31 stops moving upward. Then the receiving box 30 and the connecting frame 33 continue to move upward. The second spring 35 is compressed and deformed, and the receiving box 30 is gradually opened. The waste inside the receiving box 30 flows into the feeding plate 36, ensuring that the waste passes smoothly through the feeding plate 36 and falls into the shell. Inside body 2, under the action of inclined plate 3, waste material is guided between two crushing wheels 8. The output shaft of the third motor 27 rotates in the opposite direction, that is, the screw 28 rotates counterclockwise, causing the receiving box 30 to move downward along the second guide rod 29 back to the initial position. As the receiving box 30 moves downward, under the action of the second spring 35, the baffle 31 completely blocks the receiving box 30 to close it. The receiving box 30 drives the baffle 31 to move downward to its original position. At this time, the guide block 32 disengages from the feeding plate 36. At this time, the second motor 21 is started, and its output shaft drives the auger 22 to rotate, conveying the waste material in the cylinder 23 back to the top of the inclined plate 3, and re-enters between the two crushing wheels 8 for further crushing, thus realizing the recycling crushing and screening of waste material.

[0032] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A screening device for recycling asphalt milling waste, characterized in that: The system includes a support frame (1), a housing (2), an inclined plate (3), a feed inlet (4), a first motor (5), a first rotating shaft (7), a gear (6), a crushing wheel (8), a first filter plate (9), a first guide rod (10), a first spring (11), a connecting rod (12), and a second filter plate (13). The housing (2) is fixedly connected to the support frame (1). The top of the housing (2) has symmetrical feed slots. An inclined plate (3) is fixedly connected to both feed slots of the housing (2). The top of the housing (2) has a feed inlet (4). The front of the housing (2) is fixedly connected to the first motor (5). The two sides inside the housing (2) are rotatably connected to the first rotating shaft (7). The front end of the first rotating shaft (7) located on one side of the housing (2) is fixedly connected to the output shaft of the first motor (5). The two first rotating shafts (7) are fixedly connected to the output shaft of the first motor (5). Gears (6) are located outside the housing (2), and two gears (6) mesh with each other. Crushing wheels (8) located inside the housing (2) are fixedly connected to two first rotating shafts (7). The two crushing wheels (8) mesh with each other. A first filter plate (9) is slidably connected inside the housing (2). A first guide rod (10) is fixedly connected to the front side and the middle of one side of the housing (2). Each first guide rod (10) slides on the first filter plate (9). Multiple first springs (11) are connected between the housing (2) and the first filter plate (9). Each first spring (11) is wound around the corresponding first guide rod (10). Connecting rods (12) are fixedly connected to both sides of the bottom of the first filter plate (9). A second filter plate (13) is fixedly connected between the bottoms of the multiple connecting rods (12). The second filter plate (13) slides inside the housing (2).

2. The screening device for recycling asphalt milling waste as described in claim 1, characterized in that: The number of first filter plates (9) is less than the number of second filter plates (13).

3. The screening device for recycling asphalt milling waste as described in claim 2, characterized in that: It also includes a collection frame (14) and a handle (15). The collection frame (14) is placed at the bottom of the support frame (1). The collection frame (14) is located below the second filter plate (13). The handle (15) is fixedly connected to both sides of the collection frame (14).

4. A screening device for recycling asphalt milling waste as described in claim 3, characterized in that: It also includes a first drive wheel (17), a second shaft (20), a cam (16), a second drive wheel (18), and a belt (19). The first drive wheel (17) is fixedly connected to one end of each of the two first shafts (7). The second shafts (20) are rotatably connected to both sides of the rear of the housing (2). The cams (16) are fixedly connected to one end of each of the two second shafts (20). The two cams (16) abut against the first filter plate (9). The second drive wheel (18) is fixedly connected to one end of each of the two second shafts (20). The belts (19) are wound between each of the two first drive wheels (17) and the corresponding second drive wheel (18).

5. A screening device for recycling asphalt milling waste as described in claim 4, characterized in that: It also includes a second motor (21), a first fixed frame (26), a cylinder (23), an auger (22), a discharge guide plate (24), and a protective frame (25). The second motor (21) is fixedly connected to the lower part of the support frame (1), and the first fixed frame (26) is fixedly connected to the upper part of the support frame (1). The cylinder (23) is fixedly connected inside the first fixed frame (26). The auger (22) is fixedly connected to one end of the output shaft of the second motor (21), and the auger (22) is located inside the cylinder (23). The discharge guide plate (24) is connected and communicated to the upper part of the cylinder (23). The protective frame (25) is fixedly connected to the lower part of the discharge guide plate (24). The protective frame (25) is connected and communicated to the feed chute on one side of the shell (2).

6. The screening device for recycling asphalt milling waste as described in claim 5, characterized in that: It also includes a second fixed frame (37), a third motor (27), a screw (28), a second guide rod (29), and a receiving box (30). The second fixed frame (37) is fixedly connected to the upper part of the housing (2). The third motor (27) is fixedly connected to the top of the second fixed frame (37). The screw (28) is fixedly connected to one end of the output shaft of the third motor (27). The second guide rod (29) is fixedly connected to the upper part of the second fixed frame (37). The receiving box (30) is connected between the second guide rod (29) and the screw (28). The second guide rod (29) is slidably connected to the receiving box (30), and the screw (28) is threadedly connected to the receiving box (30).

7. A screening device for recycling asphalt milling waste as described in claim 6, characterized in that: It also includes guide blocks (32), baffles (31), third guide rods (34), connecting frames (33), second springs (35) and feeding plates (36). Guide blocks (32) are slidably connected to both sides of the right side of the receiving box (30). Baffles (31) are fixedly connected between the two guide blocks (32). Multiple third guide rods (34) are fixedly connected in a straight line array at the bottom of the baffles (31). Connecting frames (33) are fixedly connected to the bottom of the receiving box (30). Multiple second springs (35) are connected between the connecting frames (33) and the baffles (31). Each second spring (35) is wound around the corresponding third guide rod (34). The connecting frames (33) are slidably connected to the three third guide rods (34). The top of the housing (2) is connected to and communicates with the feeding plates (36).

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