Stirring mechanism for mixing asphalt with high reclaimed material proportion

Abstract

The utility model provides a stirring mechanism for mixing asphalt with high reclaimed material proportion, which comprises a stirring barrel, a driving motor, a driving shaft, a connecting frame, a stirring rod and an autorotation component, a stirring chamber is arranged in the stirring barrel, a material port communicated with the stirring chamber is arranged in the stirring barrel, the material port is used for feeding and discharging, and the autorotation component is used for rotating the driving motor. The driving motor is fixedly arranged on the stirring barrel, the driving shaft is in power connection with the driving motor, the driving shaft extends into the stirring chamber, and the connecting frame is arranged on the outer circular surface of the driving shaft in a sleeving manner. According to the scheme, a mixed material in the stirring chamber is stirred in a mode that the stirring rod rotates while revolving, so that the stirring rod drives the mixed material around the stirring rod to move, and then the mixed material moving around the stirring rod drives the mixed material attached to the side wall of the stirring chamber to be synchronously stirred; and the adhesion rate of the mixture on the side wall of the stirring chamber is reduced, so that the proportion of the high regenerated material in the asphalt mixture is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of road engineering, and particularly relates to a stirring mechanism for asphalt mixing with a high proportion of recycled materials. Background Art

[0002] Hot mix recycled asphalt pavement is to mill the RAP and transport it back to the mixing plant, then centrally crush it. According to the quality requirements of different layers of the road surface, proportion design is carried out to determine the addition ratio of RAP, regenerant, new asphalt material, new aggregate, etc., and they are remixed into a new mixture in a certain proportion to obtain excellent recycled asphalt mixture, and then paved into a recycled asphalt pavement.

[0003] However, during the processing of the existing recycled asphalt mixture, it is easy for the inner wall of the stirring mechanism to adhere to materials. However, the proportion of the materials is constant. If most of the materials adhere to the inner wall, it will lead to uneven proportion in the stirred materials. Summary of the Utility Model

[0004] (I) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the utility model provides a stirring mechanism for asphalt mixing with a high proportion of recycled materials, and solves the problems put forward in the above background art.

[0006] (II) Technical Solutions

[0007] To achieve the above object, the utility model is realized through the following technical solutions: A stirring mechanism for asphalt mixing with a high proportion of recycled materials, including a stirring barrel, a driving motor, a driving shaft, a connecting frame, stirring rods and a self-rotation assembly. A stirring chamber is opened in the stirring barrel, and a material port communicating with the stirring chamber is opened in the stirring barrel. The material port is used for feeding and discharging. The driving motor is fixedly arranged on the stirring barrel, the driving shaft is power-connected to the driving motor, the driving shaft extends into the stirring chamber, the connecting frame is sleeved on the outer circular surface of the driving shaft, the connecting frame includes a spindle-shaped part and an annular part located inside the spindle-shaped part. The annular part of the connecting frame is rotatably connected to the driving shaft. A sun gear is fixedly arranged at the lower end of the driving shaft. The self-rotation assembly is arranged on both sides of the sun gear. There are two groups of the self-rotation assemblies. The stirring rods are arranged below the self-rotation assembly. The self-rotation assembly is used to drive the stirring rods to rotate self when revolving.

[0008] Preferably, a gear ring is fixedly arranged on the side wall of the stirring chamber.

[0009] Preferably, the self-rotation assembly includes a planetary gear and a planetary shaft. The planetary shaft is rotatably connected to the lower ends on both sides of the spindle-shaped part of the connecting frame, and the planetary gear is fixedly sleeved on the outer circular surface of the planetary shaft.

[0010] Preferably, the planet gear meshes with the sun gear, and the planet gear meshes with the ring gear.

[0011] Preferably, the pitch of the stirring rod gradually increases from top to bottom.

[0012] (III) Beneficial effects

[0013] The utility model provides a stirring mechanism for asphalt mixing with a high proportion of recycled materials, which has the following beneficial effects:

[0014] 1. In this solution, the mixture in the mixing chamber is stirred by the method of the stirring rod rotating around its own axis while revolving around the center of the mixing chamber, so that the stirring rod drives the mixture around it to move, and then the mixture moving around the stirring rod drives the mixture attached to the side wall of the mixing chamber to be stirred synchronously, reducing the adhesion rate of the mixture on the side wall of the mixing chamber, thereby ensuring the proportion of high recycled materials in the asphalt mixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the front view structural schematic diagram of the utility model;

[0016] Figure 2 is the sectional view structural schematic diagram of the utility model;

[0017] Figure 3 is the exploded view structural schematic diagram of the utility model.

[0018] In the figure: 11, mixing barrel; 12, mixing chamber; 13, driving motor; 14, driving shaft; 15, connecting frame; 16, sun gear; 17, planet gear; 18, planet shaft; 20, stirring rod; 21, ring gear; 22, material inlet. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] An embodiment of the utility model provides a stirring mechanism for asphalt mixing with a high proportion of recycled materials, as Figures 1-3As shown in the figure, it includes a mixing barrel 11, a driving motor 13, a driving shaft 14, a connecting frame 15, mixing rods 20 and a self-rotation assembly. A mixing chamber 12 is provided inside the mixing barrel 11. A material inlet 22 communicating with the mixing chamber 12 is provided inside the mixing barrel 11. The material inlet 22 has the same structure as the existing structure for feeding and discharging. Workers add RAP materials into the mixing chamber 12 through the existing conveying pipe via the material inlet 22. The driving motor 13 is fixedly arranged on the mixing barrel 11. The driving shaft 14 is power-connected to the driving motor 13. The driving shaft 14 extends into the mixing chamber 12. The connecting frame 15 is sleeved on the outer cylindrical surface of the driving shaft 14. The connecting frame 15 includes a spindle-shaped part and an annular part located inside the spindle-shaped part. There is a rotational connection between the annular part of the connecting frame 15 and the driving shaft 14. A sun gear 16 is fixedly arranged at the lower end of the driving shaft 14. The self-rotation assembly is arranged on both sides of the sun gear 16. There are two groups of self-rotation assemblies. The mixing rods 20 are arranged below the self-rotation assembly. The self-rotation assembly is used to drive the mixing rods 20 to rotate self while revolving.

[0020] A gear ring 21 is fixedly arranged on the side wall of the mixing chamber 12.

[0021] As Figure 2 shown in the figure, the self-rotation assembly includes a planetary gear 17 and a planetary shaft 18. The planetary shaft 18 is rotationally connected to the lower ends on both sides of the spindle-shaped part of the connecting frame 15. The planetary gear 17 is fixedly sleeved on the outer cylindrical surface of the planetary shaft 18.

[0022] The planetary gear 17 and the sun gear 16 are in the same plane. The planetary gear 17 meshes with the sun gear 16, and the planetary gear 17 meshes with the gear ring 21. When the driving shaft 14 drives the sun gear 16 to rotate, the sun gear 16 drives the planetary gear 17 to rotate through the teeth on its outer cylindrical surface. The planetary gear 17 meshes with the gear ring 21, and thus rotates self while revolving inside the gear ring 21. The planetary gear 17 drives the connecting frame 15 to rotate relative to the driving shaft 14 through the planetary shaft 18. At the same time, the planetary gear 17 drives the mixing rods 20 to rotate through the planetary shaft 18, so as to add RAP materials into asphalt and mix them into recycled asphalt mixture.

[0023] As Figure 3 shown in the figure, the pitch of the mixing rod 20 gradually increases from top to bottom, thereby reducing the distance between the lower end of the mixing rod 20 and the inner wall of the mixing chamber 12.

[0024] The mixing rods 20 mix the mixture in the mixing chamber 12 by rotating self while revolving. During the mixing process of the mixing rods 20, the mixing rods 20 drive the mixture around them to move. At this time, since the distance between the lower end of the mixing rods 20 and the inner wall of the mixing chamber 12 gradually decreases, the mixture moving around the mixing rods 20 drives the mixture attached to the side wall of the mixing chamber 12 to be mixed synchronously, reducing the adhesion rate of the mixture on the side wall of the mixing chamber 12, thereby ensuring a high proportion of recycled materials in the asphalt mixture.

[0025] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A stirring mechanism for asphalt mixing with a high proportion of recycled materials, characterized in that: The invention comprises a stirring barrel (11), a driving motor (13), a driving shaft (14), a connecting frame (15), a stirring rod (20) and a self-rotating assembly, wherein a stirring chamber (12) is provided in the stirring barrel (11), a material port (22) connected to the stirring chamber (12) is provided in the stirring barrel (11), and the material port (22) is used for feeding and discharging materials, the driving motor (13) is fixedly arranged on the stirring barrel (11), the driving shaft (14) is dynamically connected to the driving motor (13), and the driving shaft (14) extends to the stirring chamber (12), the connecting frame (15) is sleeved on the outer cylindrical surface of the driving shaft (14), the connecting frame (15) includes a shuttle-shaped portion and an annular portion located inside the shuttle-shaped portion, the annular portion of the connecting frame (15) is rotatably connected to the driving shaft (14), a sun gear (16) is fixedly provided at the lower end of the driving shaft (14), the self-rotating assembly is provided on both sides of the sun gear (16), the self-rotating assembly is provided with two groups, the stirring rod (20) is provided on the lower side of the self-rotating assembly, and the self-rotating assembly is used to drive the stirring rod (20) to rotate when it revolves.

2. A stirring mechanism for asphalt mixing with a high recycled material ratio according to claim 1, characterized in that: A gear ring (21) is fixedly provided on the side wall of the stirring chamber (12).

3. A stirring mechanism for asphalt mixing with a high recycled material ratio according to claim 2, characterized in that: The self-rotating assembly comprises a planetary wheel (17) and a planetary shaft (18), wherein the planetary shaft (18) is rotatably connected to the lower ends of the shuttle-shaped portion of the connecting frame (15) on both sides, and the planetary wheel (17) is fixedly sleeved on the outer cylindrical surface of the planetary shaft (18).

4. A stirring mechanism for asphalt mixing with a high recycled material ratio according to claim 3, characterized in that: The planetary gear (17) meshes with the sun gear (16), and the planetary gear (17) meshes with the ring gear (21).

5. The stirring mechanism for asphalt mixing with a high recycled material ratio according to claim 1, characterized in that: The pitch of the stirring rod (20) gradually increases from top to bottom.

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