On-site cold regeneration unit for foamed asphalt on highway pavement

Abstract

The utility model discloses a highway pavement foamed asphalt on-site cold regeneration unit, and relates to the technical field of asphalt regeneration, in particular to a highway pavement foamed asphalt on-site cold regeneration unit which comprises a shell, a protection box is arranged on the outer surface of the shell, and a first servo motor is arranged in the protection box. A connecting shaft rod is arranged at one end of an output shaft of the first servo motor and rotationally connected into the shell, crushing rollers are arranged on the outer surface of the connecting shaft rod, a connecting through hole is formed in the outer surface of the shell, a collecting box is arranged in the connecting through hole, a backflow pipe is arranged on the upper surface of the collecting box, and a protection box is arranged on the lower surface of the collecting box. According to the in-situ cold regeneration unit for the foamed asphalt on the highway pavement, through the cooperative arrangement of the first servo motor, the crushing roller, the second servo motor, the return pipe and the packing auger, the in-situ cold regeneration unit for the foamed asphalt on the highway pavement has the effect of efficiently crushing asphalt particles.

Description

Technical Field

[0001] This utility model relates to the field of asphalt recycling technology, specifically to a cold recycling unit for foamed asphalt on highway pavement. Background Technology

[0002] Cold recycling of asphalt refers to milling and crushing the old pavement material at room temperature, then mixing it with cement, water and new asphalt, and finally spreading and compacting it to form a new pavement structure.

[0003] The existing cold recycling equipment has poor crushing effect during use, which affects the processing effect. At the same time, the existing asphalt material has a simple mixing structure and is not mixed evenly, which affects the quality of asphalt recycling. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides an in-situ cold recycling unit for foamed asphalt pavement, which solves the problems mentioned in the background section.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a cold recycling unit for foamed asphalt pavement in situ, comprising a housing, a protective box on the outer surface of the housing, a first servo motor inside the protective box, a connecting shaft at one end of the output shaft of the first servo motor, the connecting shaft being rotatably connected inside the housing, a crushing roller on the outer surface of the connecting shaft, a connecting through hole on the outer surface of the housing, a collection box inside the connecting through hole, a return pipe on the upper surface of the collection box, a protective box on the lower surface of the collection box, a second servo motor inside the protective box, a transmission shaft at one end of the output shaft of the second servo motor, an auger on the outer surface of the transmission shaft, the auger being located inside the return pipe, a connecting pipe at the upper end of the return pipe, and the end of the connecting pipe away from the return pipe being located inside the housing.

[0008] Optionally, there are two connecting shafts, and one end of each connecting shaft is provided with a transmission gear, which meshes with each other.

[0009] Optionally, the inner wall of the housing is provided with a sliding plate, and the upper surface of the housing is provided with a feed hopper.

[0010] Optionally, a support partition is provided in the middle of the housing, an output box is provided on the lower surface of the support partition, and a material discharge hole is provided on the outer ring of the support partition.

[0011] Optionally, a third servo motor is provided on the inner wall of the output box. A support shaft is provided at one end of the output shaft of the third servo motor. A residual gear is provided on the outer surface of the support shaft. A fixed shaft is rotatably connected inside the output box. A first crown gear and a second crown gear are provided on the outer surface of the fixed shaft. Both the first crown gear and the second crown gear mesh with the residual gear, and the first crown gear and the second crown gear are symmetrical about each other.

[0012] Optionally, the upper end of the fixed shaft is provided with a fixed seat, the outer surface of the fixed seat is provided with a scraper, the scraper abuts against the upper surface of the support partition, and the fixed shaft is rotatably connected to the inside of the support partition.

[0013] Optionally, a stirring shaft is provided at the lower end of the fixed shaft, and a stirring frame is provided on the outer surface of the stirring shaft.

[0014] Optionally, a discharge pipe is provided at the lower end of the housing, an electric valve is provided inside the discharge pipe, and a number of support legs are provided on the bottom surface of the housing, which are evenly distributed on the bottom surface of the housing.

[0015] This utility model provides an in-situ cold recycling unit for foamed asphalt pavement, which has the following beneficial effects:

[0016] 1. The in-situ cold recycling unit for foamed asphalt pavement achieves efficient asphalt particle crushing through the coordinated arrangement of a first servo motor, a crushing roller, a second servo motor, a return pipe, and an auger.

[0017] 2. The in-situ cold recycling unit for foamed asphalt pavement, through the coordinated arrangement of the third servo motor, residual gear, first crown gear, second crown gear, fixed shaft and mixing frame, enables the in-situ cold recycling unit for foamed asphalt pavement to increase the mixing uniformity and improve the asphalt treatment quality. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0019] Figure 2 This is a front view of the internal structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the protective box of this utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the output box of this utility model;

[0022] Figure 5 This is a top view of the supporting partition of this utility model.

[0023] Figure 6 This is a three-dimensional structural diagram of the present invention.

[0024] In the diagram: 1. Shell; 2. Protective box; 3. First servo motor; 4. Crushing roller; 5. Collection box; 6. Return pipe; 7. Protective box; 8. Screwdriver; 9. Connecting pipe; 10. Transmission gear; 11. Sliding plate; 12. Feed hopper; 13. Support partition; 14. Output box; 15. Discharge hole; 16. Third servo motor; 17. Residual gear; 18. Fixed shaft; 19. First crown gear; 20. Second crown gear; 21. Fixed seat; 22. Scraper; 23. Mixing rack; 24. Discharge pipe; 25. Support leg. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Example

[0026] A highway pavement foamed asphalt in-situ cold recycling unit includes a housing 1. A protective box 2 is installed on the outer surface of the housing 1. A first servo motor 3 is installed inside the protective box 2. One end of the output shaft of the first servo motor 3 has a connecting shaft, which is rotatably connected to the inside of the housing 1. A crushing roller 4 is installed on the outer surface of the connecting shaft. A connecting through hole is opened on the outer surface of the housing 1, and a collection box 5 is installed inside the connecting through hole. A return pipe 6 is installed on the upper surface of the collection box 5, and a protective box 7 is installed on the lower surface of the collection box 5. A second servo motor is installed inside the protective box 7. A drive shaft is provided at one end of the output shaft of the second servo motor. An auger 8 is provided on the outer surface of the drive shaft. The auger 8 is located inside the return pipe 6. A connecting pipe 9 is provided at the upper end of the return pipe 6. The end of the connecting pipe 9 away from the return pipe 6 is located inside the housing 1. There are two connecting shafts, and a drive gear 10 is provided at one end of each connecting shaft. The two drive gears 10 mesh with each other. A sliding plate 11 is provided on the inner wall of the housing 1. A feed hopper 12 is provided on the upper surface of the housing 1. A support partition 13 is provided in the middle of the housing 1. An output box 14 is provided on the lower surface. A material discharge hole 15 is opened on the outer ring of the support partition 13. A third servo motor 16 is provided on the inner wall of the output box 14. A support shaft is provided at one end of the output shaft of the third servo motor 16. A residual gear 17 is provided on the outer surface of the support shaft. A fixed shaft 18 is rotatably connected inside the output box 14. A first crown gear 19 and a second crown gear 20 are provided on the outer surface of the fixed shaft 18. Both the first crown gear 19 and the second crown gear 20 mesh with the residual gear 17. The first crown gear 19 and the second crown gear 20 are mutually... The upper and lower parts are symmetrical. A fixed seat 21 is provided at the upper end of the fixed shaft 18. A scraper 22 is provided on the outer surface of the fixed seat 21. The scraper 22 abuts against the upper surface of the support partition 13. The fixed shaft 18 is rotatably connected to the inside of the support partition 13. A stirring shaft is provided at the lower end of the fixed shaft 18. A stirring frame 23 is provided on the outer surface of the stirring shaft. A discharge pipe 24 is provided at the lower end of the shell 1. An electric valve is provided inside the discharge pipe 24. A number of support legs 25 are provided on the bottom surface of the shell 1, and they are evenly distributed on the bottom surface of the shell 1.

[0027] To ensure that the in-situ cold recycling unit for foamed asphalt pavement achieves efficient asphalt particle crushing and increases mixing uniformity, thereby improving asphalt treatment quality, as shown in the attached document... Figure 1-6As shown, this application adopts the following structure: through the coordinated arrangement of a first servo motor 3, a crushing roller 4, a second servo motor, a return pipe 6 and an auger 8, a third servo motor 16, a residual gear 17, a first crown gear 19, a second crown gear 20, a fixed shaft 18, and a mixing frame 23, during use, old asphalt fragments and new asphalt material are adjusted into the interior of the housing 1 through the feed hopper 12. The rotation of the first servo motor 3, the second servo motor, and the third servo motor 16 is controlled. The rotation of the first servo motor 3 drives the connecting shaft to rotate, thus transmitting... Under the action of the moving gear 10, the two crushing rollers 4 are driven to rotate relative to each other, crushing the asphalt material falling into the housing 1. After crushing, the material falls onto the support partition 13. Through the rotation of the third servo motor 16, the residual gear 17 is driven to rotate. When the residual gear 17 meshes with the first crown gear 19 (at this time, the residual gear 17 disengages from the second crown gear 20), the fixed shaft 18 driven by the residual gear 17 rotates in the forward direction. When the residual gear 17 meshes with the second crown gear 20 (at this time, the residual gear 17 disengages from the first crown gear 19), the fixed shaft 18 rotates in the forward direction. (9 meshing), as the residual gear 17 rotates, the fixed shaft 18 rotates in the opposite direction, thereby driving the scraper 22 and the mixing frame 23 to rotate reciprocally in both directions. When the scraper 22 scrapes the asphalt debris falling onto the support partition 13, the qualified debris falls through the discharge hole 15 to the bottom of the housing 1, while the larger debris gradually enters the collection box 5 through the scraping of the scraper 22. The rotation of the second servo motor drives the auger 8 to rotate, thereby returning the larger particles to the crushing roller 4 above for secondary crushing. With repeated reflux of the particles, larger particles are broken down into qualified particles, which finally fall from the discharge hole 15 to the bottom of the shell 1. Due to the reciprocating bidirectional rotation of the mixing frame 23, the asphalt particles are uniformly mixed. After mixing, the electric valve is opened to discharge the mixed asphalt particles. This gives the in-situ cold recycling unit of foamed asphalt for highway pavement the effect of efficiently crushing asphalt particles and increasing the uniformity of mixing, thereby improving the quality of asphalt treatment.

[0028] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cold in-situ recycling unit for foamed asphalt pavement, comprising a casing, characterized in that: The outer surface of the housing is provided with a protective box, and the protective box contains a first servo motor. One end of the output shaft of the first servo motor has a connecting shaft, which is rotatably connected to the inside of the housing. The outer surface of the connecting shaft is provided with a crushing roller. The outer surface of the housing has a connecting through hole, and the inside of the connecting through hole is provided with a collection box. The upper surface of the collection box is provided with a return pipe, and the lower surface of the collection box is provided with a protective box. The protective box contains a second servo motor, and one end of the output shaft of the second servo motor is provided with a transmission shaft. The outer surface of the transmission shaft is provided with an auger, which is located inside the return pipe. The upper end of the return pipe is provided with a connecting pipe, and the end of the connecting pipe away from the return pipe is located inside the housing.

2. The in-situ cold recycling unit for foamed asphalt pavement according to claim 1, characterized in that: The number of connecting shafts is two, and a transmission gear is provided at one end of each connecting shaft. The two transmission gears mesh with each other.

3. The in-situ cold recycling unit for foamed asphalt pavement according to claim 1, characterized in that: The inner wall of the shell is provided with a sliding plate, and the upper surface of the shell is provided with a feeding hopper.

4. The in-situ cold recycling unit for foamed asphalt pavement according to claim 1, characterized in that: A support partition is provided in the middle of the housing, an output box is provided on the lower surface of the support partition, and a material discharge hole is provided on the outer ring of the support partition.

5. The in-situ cold recycling unit for foamed asphalt pavement according to claim 4, characterized in that: The inner wall of the output box is equipped with a third servo motor. One end of the output shaft of the third servo motor is equipped with a support shaft. The outer surface of the support shaft is equipped with a residual gear. The inside of the output box is rotatably connected to a fixed shaft. The outer surface of the fixed shaft is equipped with a first crown gear and a second crown gear. Both the first crown gear and the second crown gear mesh with the residual gear, and the first crown gear and the second crown gear are symmetrical about each other.

6. The in-situ cold recycling unit for foamed asphalt pavement according to claim 5, characterized in that: The upper end of the fixed shaft is provided with a fixed seat, and the outer surface of the fixed seat is provided with a scraper. The scraper abuts against the upper surface of the support partition, and the fixed shaft is rotatably connected to the inside of the support partition.

7. The in-situ cold recycling unit for foamed asphalt pavement according to claim 5, characterized in that: The lower end of the fixed shaft is provided with a stirring shaft, and the outer surface of the stirring shaft is provided with a stirring frame.

8. The in-situ cold recycling unit for foamed asphalt pavement according to claim 1, characterized in that: The lower end of the shell is provided with a discharge pipe, and an electric valve is installed inside the discharge pipe. Support legs are provided on the bottom surface of the shell, and there are several support legs evenly distributed on the bottom surface of the shell.

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