Preventive maintenance device for asphalt pavement
By designing an asphalt pavement preventive maintenance device that includes a heating layer and rollers, the problems of small crack repair occupying large areas of the pavement and requiring a road roller to flatten it in the existing technology have been solved. This device achieves flexible and efficient repair and compaction, and extends the service life of asphalt pavement.
Patent Information
- Application Number
- CN202520214077.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-11
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2035-02-11
AI Technical Summary
Existing asphalt pavers require a large area of road surface to be occupied when repairing minor cracks, affecting vehicle traffic. Furthermore, a road roller is needed to flatten the surface after repair, making operation inconvenient.
An asphalt pavement preventive maintenance device was designed, comprising components such as an outer shell, a heating layer, a guide shell, a motor, a rotating shaft, a material feeding plate, and rollers. The heating layer melts the asphalt, and the material feeding plate and rollers are used to efficiently repair and compact small cracks, preventing the asphalt from solidifying. The device is flexible and compact, suitable for small-scale repairs.
It enables efficient repair and compaction of minor cracks without affecting vehicle traffic, simplifies the operation process, reduces reliance on road rollers, and extends the service life of asphalt pavements.
Smart Images
Figure CN223620766U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of preventive maintenance technology for asphalt pavement, specifically to a preventive maintenance device for asphalt pavement. Background Technology
[0002] Preventive maintenance technology for highways is a technique aimed at delaying the deterioration of existing asphalt pavements and maintaining or improving their performance without increasing their load-bearing capacity. In simple terms, preventive maintenance is essentially early defensive maintenance. When small cracks and fissures appear on the surface, high-penetration asphalt is used to repair and maintain them in advance to prevent these small cracks and fissures from causing large-scale cracking of the pavement later. This helps to curb and improve potential defects in asphalt pavements and ensures that they can achieve or extend their service life under normal operating conditions.
[0003] When repairing and maintaining small-scale cracks, existing asphalt pavers are only suitable for large-scale asphalt pavement construction. They are not practical for maintaining and repairing small cracks, as they require a large area of road surface to operate, which greatly affects vehicle traffic. After maintenance and repair, a road roller is also needed to flatten the ground, which is very troublesome. Therefore, an asphalt pavement preventive maintenance device is proposed to address the above problems. Utility Model Content
[0004] The purpose of this invention is to provide a preventive maintenance device for asphalt pavement to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A preventive maintenance device for asphalt pavement includes an outer shell, a heating layer fixedly connected to the inner side of the outer shell, a guide shell penetrating the bottom ends of the outer shell and the heating layer, a motor fixedly connected to the outer side of the guide shell, a first rotating shaft penetrating the guide shell fixedly connected to the output end of the motor, a material feeding plate located inside the guide shell fixedly connected to the outer side of the first rotating shaft, a second rotating shaft located inside the material feeding plate fixedly connected to the end of the material feeding plate away from the first rotating shaft, a roller rotatably connected to the outer side of the second rotating shaft, and four support legs symmetrically arranged front and back on the outer side of the guide shell fixedly connected to the bottom end of the outer shell, with universal wheels at the bottom ends of the support legs.
[0007] Preferably, the bottom end of the guide shell is fixedly connected to the discharge shell, the inside of the discharge shell is rotatably connected to the fixed shaft, the outside of the fixed shaft is fixedly connected to the pressure roller located inside the discharge shell, the left side of the outer shell is fixedly connected to the symmetrically arranged connecting rods, and the ends of the two connecting rods away from the outer shell are fixedly connected to a handle.
[0008] Preferably, the support legs and casters are arranged as a set, and there are four sets of support legs and casters, which are symmetrically arranged at the bottom of the outer shell.
[0009] Preferably, the feeding plate, the second rotating shaft, and the roller are a group, and there are a total of six groups of the feeding plate, the second rotating shaft, and the roller, which are evenly arranged on the surface of the first rotating shaft with the center of the first rotating shaft as the center.
[0010] Preferably, when the feed plate is in a horizontal state, the side of the roller away from the feed plate is in close contact with the inner side of the guide shell, the inner side of the guide shell is rectangular, and the outer length of the feed plate matches the inner length of the guide shell.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] 1. In this utility model, through the components such as the outer shell, heating layer, guide shell, motor, first rotating shaft, feeding plate, second rotating shaft, roller, discharge shell, connecting rod, handle, support leg, and universal wheel, molten high-permeability asphalt is first poured into the interior of the outer shell. The heating layer heats the high-permeability asphalt to prevent it from solidifying. The handle and connecting rod push the outer shell to move under the action of the support leg and universal wheel. When it moves to the position with cracks, the motor is started. The output end of the motor drives the first rotating shaft and feeding plate to rotate. Under the action of the second rotating shaft and roller, the feeding plate ensures the sealing effect between the feeding plate and the guide shell without affecting the rotation of the feeding plate. The high-permeability asphalt will enter under the guidance of the heating layer. The high-permeability asphalt inside the guide shell is carried to the discharge shell below by the rotation of the feeding plate. The high-permeability asphalt coming out of the discharge shell will cure and repair cracks and fissures, thereby extending the service life of the asphalt pavement. The overall device is small in size, very flexible and will not affect the normal passage of vehicles. When the feeding plate is not rotating, the high-permeability asphalt will be blocked inside the guide shell by the feeding plate and roller. The high-permeability asphalt itself is relatively viscous and will not flow out on its own. This solves the problem that existing asphalt pavers are only suitable for large-scale asphalt pavement construction and are not practical for curing and repairing small cracks. They also require a large area of road surface to operate, which greatly affects the passage of vehicles.
[0013] 2. In this utility model, through the setting of components such as the discharge shell, fixed shaft, and pressure roller, the high-permeability asphalt coming down from the guide shell will fall onto the gaps in the ground from the left and right sides of the pressure roller. As the whole device moves, the pressure roller will roll along with it under the action of the fixed shaft. The rolling of the pressure roller will compact the repaired road surface, making the high-permeability asphalt more compact and smooth. No additional road roller is needed, which is very convenient to use. This solves the problem that it is very troublesome to use a road roller to flatten the ground after the maintenance and repair are completed. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a top view of the structure of this utility model;
[0016] Figure 3 This is a side view sectional structural diagram of the present invention;
[0017] Figure 4 This is a detailed structural diagram of the material cutting plate of this utility model.
[0018] In the diagram: 1. Outer shell; 2. Heating layer; 3. Guide shell; 4. Motor; 5. First rotating shaft; 6. Feed plate; 7. Second rotating shaft; 8. Roller; 9. Discharge shell; 10. Fixed shaft; 11. Pressure roller; 12. Connecting rod; 13. Handle; 14. Support leg; 15. Caster wheel. 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] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0021] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.
[0022] Please see Figure 1-4 This utility model provides a technical solution:
[0023] A preventive maintenance device for asphalt pavement includes an outer shell 1, a heating layer 2 fixedly connected to the inner side of the outer shell 1, a guide shell 3 penetratingly connected to the bottom ends of the outer shell 1 and the heating layer 2, a motor 4 fixedly connected to the outer side of the guide shell 3, a first rotating shaft 5 penetrating the guide shell 3 fixedly connected to the output end of the motor 4, a material feeding plate 6 located inside the guide shell 3 fixedly connected to the outer side of the first rotating shaft 5, a second rotating shaft 7 located inside the material feeding plate 6 fixedly connected to the end of the material feeding plate 6 away from the first rotating shaft 5, a roller 8 rotatably connected to the outer side of the second rotating shaft 7, and four support legs 14 symmetrically arranged front and back on the outer side of the guide shell 3 fixedly connected to the bottom end of the outer shell 1, with universal wheels 15 at the bottom end of the support legs 14.
[0024] A discharge shell 9 is fixedly connected to the bottom of the guide shell 3. A fixed shaft 10 is rotatably connected inside the discharge shell 9. A pressure roller 11 located inside the discharge shell 9 is fixedly connected to the outside of the fixed shaft 10. A symmetrically arranged connecting rod 12 is fixedly connected to the left side of the outer shell 1. A handle 13 is fixedly connected to the end of the two connecting rods 12 away from the outer shell 1. The support legs 14 and universal wheels 15 are a set, and there are four sets of support legs 14 and universal wheels 15, which are symmetrically arranged at the bottom of the outer shell 1. The four sets of support legs 14 and universal wheels 15 can ensure stable operation. The mobile assembly consists of six sets of components: the feeding plate 6, the second rotating shaft 7, and the roller 8. These six sets are evenly distributed on the surface of the first rotating shaft 5 with the center of the shaft as the center. The multiple sets of feeding plates 6, second rotating shafts 7, and rollers 8 allow for continuous and stable feeding of high-penetration asphalt. When the feeding plate 6 is horizontal, the side of the roller 8 away from the feeding plate 6 is tightly fitted with the inner side of the guide shell 3. The inner side of the guide shell 3 is rectangular, and the outer length of the feeding plate 6 matches the inner length of the guide shell 3.
[0025] Workflow: When an asphalt pavement preventative maintenance device is needed, the entire device is externally powered and uses the existing MT682 control chip to control the speed and number of revolutions of motor 4. First, molten high-permeability asphalt is poured into the interior of the outer shell 1. The high-permeability asphalt is heated by the heating layer 2 to prevent it from solidifying. The outer shell 1 is moved by the handle 13 and connecting rod 12 under the action of the support legs 14 and casters 15. When it moves to the location of the crack, motor 4 is started. The output of motor 4 drives the first rotating shaft 5 and the feeding plate 6 to rotate. Under the action of the second rotating shaft 7 and roller 8, the feeding plate 6 ensures the sealing effect between the feeding plate 6 and the guide shell 3 without affecting the rotation of the feeding plate 6. The high-permeability asphalt will enter the guide shell 3 under the guidance of the heating layer 2. The high-permeability asphalt in the guide shell 3 is brought to the discharge shell 9 below by the rotation of the feeding plate 6. The high-permeability asphalt coming out of the guide shell 3 falls onto the gaps in the ground from the left and right sides of the pressure roller 11. As the whole device moves, the pressure roller 11 rolls along with it under the action of the fixed shaft 10. The rolling of the pressure roller 11 compacts the repaired road surface, making the high-permeability asphalt more compact and smooth. No additional road roller is needed, making it very convenient to use. It can be used to repair cracks and fissures, thereby extending the service life of asphalt pavement. The whole device is small in size, very flexible and will not affect the normal passage of vehicles. When the feeding plate 6 is not rotating, the high-permeability asphalt will be blocked inside the guide shell 3 by the feeding plate 6 and the roller 8. The high-permeability asphalt itself is relatively viscous and will not flow out on its own.
[0026] Contents not described in detail in this specification are existing technologies known to those skilled in the art. Standard parts used in this invention can all be purchased commercially, and irregularly shaped parts can be custom-made according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are already mature technologies. The machinery, parts, and equipment all use conventional models from the prior art, and the circuit connections also employ conventional connection methods from the prior art, which will not be detailed here.
[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A preventive maintenance device for asphalt pavement, comprising a housing (1), characterized in that: A heating layer (2) is fixedly connected to the inner side of the outer shell (1). A guide shell (3) is connected through the bottom end of the outer shell (1) and the heating layer (2). A motor (4) is fixedly connected to the outer side of the guide shell (3). A first rotating shaft (5) is fixedly connected to the output end of the motor (4) and passes through the guide shell (3). A feeding plate (6) located inside the guide shell (3) is fixedly connected to the outer side of the first rotating shaft (5). A second rotating shaft (7) located inside the feeding plate (6) is fixedly connected to the end of the feeding plate (6) away from the first rotating shaft (5). A roller (8) is rotatably connected to the outer side of the second rotating shaft (7). Four support legs (14) are symmetrically arranged on the outer side of the guide shell (3) and fixedly connected to the bottom end of the outer shell (1). Universal wheels (15) are provided at the bottom end of the support legs (14).
2. The asphalt pavement preventive maintenance device according to claim 1, characterized in that: The bottom end of the guide shell (3) is fixedly connected to the discharge shell (9), the inside of the discharge shell (9) is rotatably connected to the fixed shaft (10), the outside of the fixed shaft (10) is fixedly connected to the pressure roller (11) located inside the discharge shell (9), the left side of the outer shell (1) is fixedly connected to the connecting rods (12) arranged symmetrically, and the end of the two connecting rods (12) away from the outer shell (1) is fixedly connected to a handle (13).
3. The asphalt pavement preventive maintenance device according to claim 1, characterized in that: The support leg (14) and the caster wheel (15) are a set. There are four sets of the support leg (14) and the caster wheel (15), which are arranged symmetrically at the bottom of the outer shell (1).
4. The asphalt pavement preventive maintenance device according to claim 1, characterized in that: The feeding plate (6), the second rotating shaft (7) and the roller (8) are a group. There are six groups of the feeding plate (6), the second rotating shaft (7) and the roller (8), and they are evenly arranged on the surface of the first rotating shaft (5) with the center of the first rotating shaft (5) as the center.
5. The asphalt pavement preventive maintenance device according to claim 1, characterized in that: When the feed plate (6) is in a horizontal state, the side of the roller (8) away from the feed plate (6) is closely fitted with the inner side of the guide shell (3). The inner side of the guide shell (3) is rectangular, and the outer length of the feed plate (6) matches the inner length of the guide shell (3).