Crushing treatment equipment for cold regeneration process of semi-flexible pavement material

Abstract

The utility model is applicable to the technical field of pavement material crushing treatment, and provides crushing treatment equipment for a semi-flexible pavement material cold regeneration process, which comprises a crushing shell, two connecting shafts are rotatably connected between the inner walls of the front side and the rear side of the crushing shell, and two crushing rollers are sleeved on the outer surfaces of the two connecting shafts. Two built-in plates are arranged between the inner walls of the front side and the rear side of the smashing shell, sliding grooves are formed in the surfaces, facing the smashing rollers, of the built-in plates, built-in sliding blocks are slidably connected into the sliding grooves, a plurality of comb teeth are arranged on the surfaces of the sides, facing the smashing rollers, of the built-in sliding blocks, and the other ends of the comb teeth make contact with the outer surfaces of the smashing rollers. According to the smashing device, the surfaces of the smashing rollers can be brushed back and forth through the comb teeth, the cleaning area of the comb teeth on the smashing rollers is increased, and the problem that the smashing rollers cannot be cleaned thoroughly is avoided as much as possible; and the crushing effect of the crushing roller on the semi-flexible pavement material in the later period is ensured.

Description

Technical Field

[0001] This utility model relates to the field of road material crushing and processing technology, and more specifically, it relates to crushing and processing equipment for cold recycling of semi-flexible road materials. Background Technology

[0002] With the rapid development of road construction, the performance requirements for road surface materials are becoming increasingly stringent. Traditional hot-mix asphalt mixtures consume a lot of energy and cause heavy pollution during construction, while cold recycling technology is gradually gaining attention due to its environmental protection and energy-saving advantages. The cold recycling process requires crushing the old asphalt mixture to facilitate its later mixing with cement paste, thus necessitating the use of crushing equipment.

[0003] Prior art: CN213467945U discloses a waste asphalt mixture crushing equipment. This prior art provides comb teeth on the bottom sides of both the movable crushing roller and the fixed crushing roller. The comb teeth and crushing blades are arranged alternately. When the waste asphalt material is crushed, the friction temperature rises and the asphalt adheres to the crushing roller. The comb teeth can scrape the asphalt off the crushing roller.

[0004] However, the inventors discovered the following problems with the existing technology: In the existing technology, by staggering the comb teeth and the crushing blade teeth, the surface of the crushing roller can be cleaned. However, when the crushing roller crushes the old asphalt mixture, the crushing blade teeth of the crushing roller will inevitably adhere to the old asphalt mixture. This will affect the sharpness of the crushing blade teeth of the crushing roller and affect the crushing effect on the old asphalt mixture. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a crushing and processing equipment for cold recycling process of semi-flexible road surface materials, which improves the cleaning area of ​​the crushing roller by brushing the surface of the crushing roller back and forth.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A crushing and processing device for cold recycling of semi-flexible pavement materials includes a crushing shell. Two connecting shafts are rotatably connected between the inner walls of the front and rear sides of the crushing shell. Two crushing rollers are fitted on the outer surfaces of the two connecting shafts. A drive mechanism for controlling the rotation of the two connecting shafts is provided on the crushing shell. Two built-in plates are provided between the inner walls of the front and rear sides of the crushing shell. The two built-in plates are respectively located on opposite sides of the two crushing rollers. A groove is opened on the surface of the built-in plate facing the crushing roller. A built-in slider is slidably connected in the groove. Multiple comb teeth are provided on the surface of the built-in slider facing the crushing roller. The other end of the comb teeth contacts the outer surface of the crushing roller. An active mechanism for controlling the back-and-forth sliding of the built-in slider is provided on the front surface of the crushing shell.

[0008] The present invention is further configured such that: the upper surface of the crushing shell is provided with a feeding hopper communicating with its interior, the bottom wall of the crushing shell is inclined, and the right side surface of the crushing shell is provided with a discharging hopper communicating with the inclined bottom surface of the crushing shell.

[0009] The present invention is further configured such that: the driving mechanism includes a motor, the motor is disposed on the upper surface of the crushing shell, a pulley is disposed at the rear end of the motor output shaft, the rear ends of the two connecting shafts both rotatably extend through the rear surface of the crushing shell, two gears are sleeved at the rear ends of the two connecting shafts, the two gears are meshed and connected, a pulley is also disposed on the rear surface of one of the gears, and a belt is connected between the two pulleys for transmission.

[0010] The present invention is further configured such that: the active mechanism includes two control push rods, both of which are disposed on the front side of the crushing shell, and the rear ends of the two control push rods slide through into two sliding grooves respectively and are connected to the built-in slider.

[0011] The present invention is further configured such that: the front ends of both connecting shafts rotatably extend through the front surface of the crushing housing; a collar is fitted on the outer surface of the front end of the connecting shaft; an external slider is provided between the collar and the control push rod; a first rotating plate is hinged between the front end of the control push rod and the front surface of the external slider; a sleeve shaft is provided on the front surface of both the collar and the external slider; a second rotating plate is rotatably fitted between the two sleeve shafts; and a guide rail is provided on the front surface of the crushing housing to provide sliding for the external slider.

[0012] The advantages of this utility model are:

[0013] This invention uses comb teeth to brush the surface of the crushing roller back and forth, increasing the cleaning area of ​​the crushing roller and minimizing the problem of incomplete cleaning, thus ensuring the crushing effect of the crushing roller on semi-flexible road materials in the later stage. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the crushing and processing equipment used in the cold recycling process of semi-flexible pavement materials according to this utility model.

[0015] Figure 2 This is a cross-sectional schematic diagram of the crushing shell of this utility model;

[0016] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0017] Figure 4 for Figure 1 Enlarged view at point B in the middle;

[0018] Figure 5This is a rear plan view of the crushing shell of this utility model.

[0019] In the diagram: 1. Crushing shell; 2. Feeding hopper; 3. Discharging hopper; 4. Connecting shaft; 5. Crushing roller; 6. Internal plate; 7. Slide groove; 8. Internal slider; 9. Comb teeth; 10. Control push rod; 11. External slider; 12. First rotating plate; 13. Guide rail; 14. Sleeve shaft; 15. Second rotating plate; 16. Collar; 17. Motor; 18. Pulley; 19. Belt; 20. Gear. Detailed Implementation

[0020] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0021] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] Please see Figure 1-5 The present invention provides the following technical solution:

[0023] Specifically, it refers to the crushing and processing equipment used in the cold recycling process of semi-flexible pavement materials, including a crushing shell 1. The upper surface of the crushing shell 1 is provided with a feeding hopper 2 that communicates with its interior. The bottom wall of the crushing shell 1 is inclined. The right side surface of the crushing shell 1 is provided with a feeding hopper 3 that communicates with the inclined bottom surface of the crushing shell 1. Two connecting shafts 4 are rotatably connected between the inner walls of the front and rear sides of the crushing shell 1. Two crushing rollers 5 are sleeved on the outer surface of the two connecting shafts 4.

[0024] During use, the semi-flexible pavement material is poured into the crushing shell 1 through the feeding hopper 2. At this time, the two connecting shafts 4 rotate simultaneously, so the semi-flexible pavement material falling into the crushing shell 1 is crushed by the two crushing rollers 5. The crushed semi-flexible pavement material falls to the bottom of the crushing shell 1. Since the bottom wall of the crushing shell 1 is inclined, the crushed semi-flexible pavement material slides into the discharge hopper 3 and is finally discharged from the discharge hopper 3.

[0025] Two built-in plates 6 are provided between the inner walls of the front and rear sides of the crushing housing 1. The two built-in plates 6 are respectively located on opposite sides of the two crushing rollers 5. A groove 7 is opened on the surface of the built-in plate 6 facing the crushing roller 5. A built-in slider 8 is slidably connected in the groove 7. Multiple comb teeth 9 are provided on the surface of the built-in slider 8 facing the crushing roller 5. The other end of the comb teeth 9 contacts the outer surface of the crushing roller 5. An active mechanism for controlling the back-and-forth sliding of the built-in slider 8 is provided on the front surface of the crushing housing 1.

[0026] When in use, as the crushing roller 5 rotates, the built-in slider 8 is controlled by the movable mechanism to slide in the groove 7. At this time, the comb teeth 9 can brush the surface of the crushing roller 5. Therefore, the asphalt mixture attached to the crushing roller 5 falls off under the sliding of the comb teeth 9. The above structure increases the cleaning area of ​​the crushing roller 5 by the comb teeth 9, and avoids the problem of the crushing roller 5 not being cleaned properly, thus ensuring the crushing effect of the crushing roller 5 on the semi-flexible road surface material in the later stage.

[0027] The active mechanism includes two control push rods 10, both of which are located on the front side of the crushing housing 1. The rear ends of the two control push rods 10 slide through two sliding grooves 7 and are connected to the built-in sliders 8. The front ends of the two connecting shafts 4 rotatably extend through the front surface of the crushing housing 1. A collar 16 is fitted on the outer surface of the front end of the connecting shaft 4. An external slider 11 is provided between the collar 16 and the control push rod 10. A guide rail 13 is provided on the front surface of the crushing housing 1 to provide sliding for the external slider 11. A first rotating plate 12 is hinged between the front end of the control push rod 10 and the front surface of the external slider 11. A sleeve shaft 14 is provided on the front surface of both the collar 16 and the external slider 11. A second rotating plate 15 is rotatably fitted between the two sleeve shafts 14.

[0028] During use, as the connecting shaft 4 drives the crushing roller 5, the collar 16 rotates synchronously with the connecting shaft 4. This causes the second rotating plate 15 to rotate in a circumferential direction, so that the second rotating plate 15 can drive the external slider 11 to slide back and forth on the guide rail 13. Therefore, the first rotating plate 12 can generate a pushing force or pull on the control push rod 10, so that the control push rod 10 pulls the built-in slider 8 to slide back and forth in the slide groove 7.

[0029] A motor 17 is provided on the upper surface of the crushing housing 1. A pulley 18 is provided at the rear end of the output shaft of the motor 17. The rear ends of the two connecting shafts 4 rotatably extend through the rear surface of the crushing housing 1. Two gears 20 are sleeved on the rear ends of the two connecting shafts 4. The two gears 20 are meshed and connected. A pulley 18 is also provided on the rear surface of one of the gears 20. A belt 19 is connected between the two pulleys 18.

[0030] When in use, the motor 17 starts, and the output shaft of the motor 17 synchronously drives the pulley 18 to rotate. At this time, under the transmission of the belt 19, the other pulley 18 rotates synchronously, which causes the gear 20 connected to it to rotate. At this time, the other gear 20 rotates in the opposite direction under the meshing transmission, which causes the two crushing rollers 5 to rotate in opposite directions. Therefore, the fallen flexible road surface material can be crushed and cold recycled.

[0031] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A crushing treatment equipment for semi-flexible pavement material cold regeneration process, comprising a crushing shell (1), two connecting shafts (4) are rotatably connected between the inner walls of the front and rear sides of the crushing shell (1), and the outer surfaces of the two connecting shafts (4) are sleeved with two crushing rollers (5), characterized in that: The crushing housing (1) is provided with a drive mechanism to control the rotation of two connecting shafts (4). Two built-in plates (6) are provided between the inner walls of the front and rear sides of the crushing housing (1). The two built-in plates (6) are respectively located on opposite sides of the two crushing rollers (5). A groove (7) is provided on the surface of the built-in plate (6) facing the crushing roller (5). A built-in slider (8) is slidably connected in the groove (7). Multiple comb teeth (9) are provided on the surface of the built-in slider (8) facing the crushing roller (5). The other end of the comb teeth (9) contacts the outer surface of the crushing roller (5). An active mechanism for controlling the back-and-forth sliding of the built-in slider (8) is provided on the front surface of the crushing housing (1).

2. The crushing processing apparatus for semi-flexible pavement material cold recycling process according to claim 1, characterized in that: The upper surface of the crushing shell (1) is provided with a feeding hopper (2) that communicates with its interior. The bottom wall of the crushing shell (1) is inclined. The right side surface of the crushing shell (1) is provided with a feeding hopper (3) that communicates with the inclined bottom surface of the crushing shell (1).

3. The crushing processing apparatus for semi-flexible pavement material cold recycling process according to claim 1, characterized in that: The drive mechanism includes a motor (17), which is disposed on the upper surface of the crushing shell (1), and a pulley (18) is provided at the rear end of the output shaft of the motor (17).

4. The crushing processing apparatus for semi-flexible pavement material cold recycling process according to claim 3, characterized in that: The rear ends of the two connecting shafts (4) rotate through the rear surface of the crushing shell (1). Two gears (20) are sleeved on the rear ends of the two connecting shafts (4). The two gears (20) are meshed and connected. A pulley (18) is also provided on the rear surface of one of the gears (20). A belt (19) is connected between the two pulleys (18).

5. The crushing processing apparatus for semi-flexible pavement material cold recycling process according to claim 1, characterized in that: The active mechanism includes two control push rods (10), both of which are located on the front side of the crushing shell (1). The rear ends of the two control push rods (10) slide through the two slide grooves (7) respectively and are connected to the built-in slider (8).

6. The crushing processing apparatus for semi-flexible pavement material cold recycling process according to claim 5, characterized in that: The front ends of the two connecting shafts (4) rotatably extend through the front surface of the crushing shell (1). A collar (16) is fitted on the outer surface of the front end of the connecting shaft (4). An external slider (11) is provided between the collar (16) and the control push rod (10). A first rotating plate (12) is hinged between the front end of the control push rod (10) and the front surface of the external slider (11). A sleeve shaft (14) is provided on the front surface of both the collar (16) and the external slider (11). A second rotating plate (15) is rotatably fitted between the two sleeve shafts (14).

7. The crushing processing apparatus for semi-flexible pavement material cold recycling process according to claim 6, characterized in that: The front surface of the crushing housing (1) is provided with a guide rail (13) for sliding the external slider (11).

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