An asphalt pavement shaping and repairing device and a repairing method

Abstract

This invention discloses an asphalt pavement shaping and repair device and method, belonging to the field of road repair technology. The asphalt pavement shaping and repair device of this invention includes a mobile frame. A defect identification module is installed on the lower surface of the mobile frame near the front end, used to detect and generate the contour and depth information of pavement defects. A partition shaping module is installed in the middle of the mobile frame, used to perform contour milling or cutting on the defect area based on the contour and depth information. The invented asphalt pavement shaping and repair device and method integrate five core functional modules—defect identification, contour cutting, milling and removal, heated paving, and intelligent compaction—onto a single mobile frame. Through a control center, the entire process is intelligently and collaboratively controlled. The equipment can complete all repair procedures in one pass through the defect area, transforming the traditional multi-day, multi-machine, decentralized operation mode into a highly efficient "one-stop" assembly line operation.

Description

Technical Field

[0001] This invention relates to the field of road repair technology, specifically to an asphalt pavement reshaping and repair device and method. Background Technology

[0002] Asphalt pavement has become the main pavement type in modern road engineering due to its advantages such as high driving comfort, short construction period, and ease of maintenance. However, under the influence of multiple factors such as long-term vehicle load cycles, natural climatic erosion (such as ultraviolet radiation, rainwater, and temperature differences), and untimely maintenance, asphalt pavement inevitably develops typical defects such as potholes, ruts, network cracks, and subsidence. If these defects are not repaired in time, they will rapidly expand under the action of "water damage" and "load impact," severely weakening the structural bearing capacity and service function of the pavement, not only significantly shortening the service life of the road, but also posing significant driving safety hazards.

[0003] Currently, asphalt pavement repair mainly employs a combination of manual labor and small machinery, with core processes primarily consisting of cold patch cutting and filling, and traditional hot-mix paving. This approach suffers from several technical drawbacks: First, it is inefficient. Traditional processes require separate steps for cutting, chiseling, cleaning, paving, and compaction, with each step involving independent equipment operation and cumbersome workflows. Repairing a single pothole is time-consuming and can easily cause traffic congestion. Second, the repair quality is suboptimal. Cold patching suffers from weak bonding between new and old asphalt and insufficient compaction, leading to secondary damage. Traditional hot-mix processes suffer from uneven heating, resulting in stratification, poor joint smoothness, and difficulty in precisely adapting to different pavement morphologies. Third, the operating costs are high, requiring significant labor input, frequent equipment transfer, and low recycling rates for milling waste, leading to resource waste and environmental pollution. Fourth, it lacks adaptability. Existing equipment struggles to precisely reshape pavements in special locations such as around manhole covers and corner areas, creating repair blind spots and affecting the overall repair effect. Summary of the Invention

[0004] The purpose of this invention is to provide an asphalt pavement shaping and repair device and repair method, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an asphalt pavement shaping and repair device, comprising a mobile frame, wherein a defect identification module is provided on the lower surface of the mobile frame near the front end, for detecting and generating contour and depth information of pavement defects; a partition shaping module is provided in the middle of the mobile frame, for performing contour milling or cutting on the defect area according to the contour and depth information; an asphalt paving and compaction module is provided at the rear end of the mobile frame; and a control center is also provided inside the mobile frame, electrically connected to the defect identification module, the partition shaping module, and the asphalt paving and compaction module, for receiving information and controlling the coordinated operation of each module;

[0006] The partition shaping module includes a first cutting unit, a second cutting unit, and a milling unit; the first cutting unit includes a planar drive assembly, a vertical drive assembly, a rotary frame, and a cutter head mounting frame connected in sequence.

[0007] The second cutting unit has the same structure as the first cutting unit, and the second cutting unit and the first cutting unit are movably connected through a gear and rack mechanism.

[0008] The milling unit includes a horizontally moving component, a movable plate, a symmetrically arranged telescopic frame, a milling cutter roller, and a cleaning box connected in sequence; the cleaning box is equipped with a cleaning roller, and a screw conveyor is connected to one side of the cleaning box;

[0009] The asphalt paving and compaction module includes an asphalt heating output unit and a compaction unit.

[0010] Preferably, the defect identification module includes at least a 3D laser scanner, a high-resolution industrial camera, and a supplementary lighting and protection system; the 3D laser scanner is used to acquire 3D point cloud data of the road surface; and the high-resolution industrial camera is used to capture the road surface texture features.

[0011] Preferably, the vertical drive assembly is mounted on the slider structure of the planar drive assembly. The vertical drive assembly includes a first telescopic rod and a lifting plate. The first telescopic rod is used to control the up and down movement of the lifting plate. A lower plate is connected to the lower surface of the lifting plate through a short shaft. A rotating frame is sleeved on the short shaft. The side wall of the rotating frame is hinged to the lower plate through a second telescopic rod, which is used to drive the rotating frame to rotate around the short shaft.

[0012] Preferably, the lower surface of the rotating frame is provided with an extension arm, which is movably connected to the cutter head mounting frame; the cutter head mounting frame is provided with a cutter head motor, and the lower surface of the cutter head mounting frame is provided with a first cutter head; the lower surface of the rotating frame is also provided with a third telescopic rod, which is movably connected to the outer wall of the cutter head motor, and is used to pull the cutter head mounting frame to rotate around the extension arm to change the cutting angle of the first cutter head.

[0013] Preferably, the second cutting unit and the first cutting unit use first cutter discs of different specifications. The planar drive components of the second cutting unit and the first cutting unit are both provided with Y-axis moving guide rails. The two Y-axis moving guide rails are movably connected by a gear and rack mechanism, so that the second cutting unit can move laterally relative to the first cutting unit to expand or avoid the working area.

[0014] Preferably, the gear and rack mechanism includes opposing racks disposed on the opposing sides of two Y-axis moving guide rails, a moving gear meshing between the two opposing racks, and a long-stroke cylinder that drives the moving gear to roll along the opposing racks.

[0015] Preferably, the asphalt heating output unit includes an asphalt heating cylinder, a stirring paddle, a spiral blade, and an opening and closing assembly; the asphalt heating cylinder is equipped with a stirring paddle and a spiral blade, and the opening and closing assembly is provided on the asphalt heating cylinder below the spiral blade. The opening and closing assembly includes an opening and closing cylinder and an opening and closing plate, which are used to control the opening and closing of the discharge port.

[0016] Preferably, the compaction unit includes an integral mounting frame, a first compaction roller, a second compaction roller, and a gear assembly; the gear assembly includes a first gear, a second gear, and a third gear that mesh in sequence, with the first gear fixedly connected to the first compaction roller.

[0017] Preferably, the third gear is driven by a gear motor, and a cam is provided on one side of the third gear; the second compaction roller is provided with limit frames at both ends, and the cam is movably connected to the limit frames to drive the second compaction roller to reciprocate horizontally.

[0018] Another technical problem to be solved by the present invention is to provide a repair method for an asphalt pavement reshaping and repair device, comprising the following steps:

[0019] S1: The disease identification module scans the target area and generates a digital model of the disease; the control center analyzes the model and plans the operation paths and parameters of each module.

[0020] S2: The first and second cutting units precisely cut the periphery of the diseased area according to the planned path to form a repair boundary;

[0021] S3: The milling unit mills the area within the boundary, and at the same time removes waste material synchronously through the cleaning box and the screw conveyor;

[0022] S4: The asphalt heating output unit precisely fills the repair groove with the heat-insulating asphalt mixture;

[0023] S5: The first compaction roller of the compaction unit rolls and compacts the asphalt, while the second compaction roller performs horizontal reciprocating kneading.

[0024] S6: After the repair is completed, the defect identification module will rescan the repaired area and generate a quality report.

[0025] Compared with the prior art, the beneficial effects of the present invention are:

[0026] The asphalt pavement reshaping and repair device and repair method of the present invention integrate five core functional modules, namely, defect identification, contour cutting, milling and removal, heated paving and intelligent compaction, into a mobile frame. Through the control center, the entire process is intelligently and collaboratively controlled. During operation, the equipment can complete all repair procedures by passing through the defect area in one go. This transforms the traditional multi-day, multi-machine decentralized operation mode into an efficient "one-stop" assembly line operation, which greatly reduces the interference with public transportation.

[0027] This invention generates a high-precision digital model through a disease identification module, and the first and second cutting units, which can be independently adjusted with multiple degrees of freedom, work together to accurately cut any irregular disease, forming a repair groove with neat edges and optimized bevels, providing a better geometric interface for high-quality bonding.

[0028] In this invention, the milling unit works synchronously with the cleaning box and the screw conveyor, achieving "milling and cleaning simultaneously" and ensuring the absolute cleanliness of the repaired base surface. The heating output unit ensures that the filling material is always at the optimal construction temperature, and in conjunction with the screw blade stirring, it improves the heating effect while facilitating material discharge.

[0029] Furthermore, the compaction unit in this invention adopts a composite compaction mode that combines "unidirectional rolling compaction" and "horizontal reciprocating vibration kneading," with a focus on strengthening the compaction of the joint area, ensuring a tight bond between the new and old materials and a high density of the repair layer, thus fundamentally preventing detachment and cracking. Attached Figure Description

[0030] Figure 1 This is an overall structural diagram of the asphalt pavement shaping and repair device of the present invention;

[0031] Figure 2 This is a diagram of the internal structure of the mobile vehicle frame of the present invention;

[0032] Figure 3 This is a structural diagram of the partition shaping module of the present invention;

[0033] Figure 4 This is a partial structural diagram of the first cutting unit of the present invention;

[0034] Figure 5 This is a diagram of the rotating frame mounting structure of the present invention;

[0035] Figure 6 This is a structural diagram of the gear and rack mechanism of the present invention;

[0036] Figure 7 This is a structural diagram of the milling unit of the present invention;

[0037] Figure 8 This is a structural diagram of the asphalt paving and compaction module of the present invention;

[0038] Figure 9 This is a structural diagram of the asphalt heating output unit of the present invention;

[0039] Figure 10 This is an exploded view of the compaction unit of the present invention.

[0040] In the diagram: 1. Mobile frame; 11. Defect identification module; 12. Waste outlet; 2. First cutting unit; 21. Planar drive assembly; 22. Vertical drive assembly; 221. First telescopic rod; 222. Lifting plate; 2221. Lower plate; 23. Rotating frame; 231. Second telescopic rod; 232. Extension arm; 233. Third telescopic rod; 24. Cutter head mounting frame; 241. Cutter head motor; 242. First cutter head; 243. Arc-shaped slide; 3. Second cutting unit; 31. Opposing rack; 32. Moving gear; 33. Long stroke cylinder; 4. Milling unit; 41. Horizontal movement assembly; 42. Movable plate; 43. Telescopic frame; 44. Milling cutter roller; 45. Cleaning 451. Cleaning roller; 452. Screw conveyor; 5. Asphalt heating output unit; 51. Asphalt heating cylinder; 511. Feed inlet; 512. Long cylinder; 513. Discharge outlet; 52. Agitator; 53. Spiral blade; 54. Opening and closing assembly; 541. Opening and closing cylinder; 542. Opening and closing plate; 6. Compaction unit; 61. Overall mounting frame; 62. First compaction roller; 63. Second compaction roller; 631. Limiting frame; 64. Gear assembly; 641. First gear; 642. Second gear; 643. Third gear; 6431. Gear motor; 6432. Cam; 644. Position control motor; 645. Drive screw; 646. Screw slider; 647. Mounting plate. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] To address the problems of low construction efficiency, independent operation of equipment at each stage, cumbersome process connections, uneven heating in traditional hot-mix processes leading to delamination, poor joint smoothness, and insufficient adaptability, thus affecting the overall repair effect, please refer to... Figures 1-10 This embodiment provides the following technical solution:

[0043] An asphalt pavement shaping and repair device includes a mobile frame 1. A defect identification module 11 is installed on the lower surface of the mobile frame 1 near the front end, which is used to detect and generate the contour and depth information of pavement defects. A partition shaping module is installed in the middle of the mobile frame 1, which is used to perform contour milling or cutting on the defect area according to the contour and depth information. An asphalt paving and compaction module is installed at the rear end of the mobile frame 1. A control center is also installed inside the mobile frame 1, which is electrically connected to the defect identification module 11, the partition shaping module and the asphalt paving and compaction module, and is used to receive information and control the coordinated operation of each module.

[0044] Disease identification module 11 includes at least:

[0045] A 3D laser scanner emits laser lines or laser arrays toward the road surface. By calculating the time difference or phase difference of the reflected light, it quickly acquires the 3D coordinates (X, Y, Z) of tens of thousands of points on the road surface, forming "point cloud" data. This is the core of measuring the depth, area, and volume of road damage, and can accurately identify the depth of potholes, the cross-sectional shape of ruts, and the slope of subsidence.

[0046] High-resolution industrial cameras are used to clearly capture the visual features of defects such as cracks, loosening, oil seepage, and repair marks; binocular stereo vision can assist in three-dimensional measurement through the principle of parallax and capture comparative images before and after repair.

[0047] The supplemental lighting and protection system features a high-brightness LED array installed around the camera and laser scanner, providing stable and uniform illumination, eliminating ambient light interference such as tree shadows and nighttime light, and ensuring image and laser data quality.

[0048] Specifically, the partitioning shaping module includes a first cutting unit 2, a second cutting unit 3, and a milling unit 4. The first cutting unit 2 includes a planar drive assembly 21, a vertical drive assembly 22, a rotating frame 23, and a cutter head mounting frame 24. The planar drive assembly 21 includes a moving guide rail for controlling the movement of the Y-axis and X-axis respectively, a drive motor, a lead screw, and a slider structure. The vertical drive assembly 22 is mounted on the slider structure of the planar drive assembly 21. The vertical drive assembly 22 includes a first telescopic rod 221 connected to the slider and a lifting plate 222. The lifting plate 222 fixes the position of the first telescopic rod 221, and the output end of the first telescopic rod 221 is connected to the slider. The lifting plate 222 is controlled to move up and down. The lower surface of the lifting plate 222 is provided with a lower plate 2221 through a short shaft. The short shaft passes through the rotating frame 23. The lower plate 2221 is located inside the lower rotating frame 23. The side wall of the rotating frame 23 is centrally symmetrically provided with a second telescopic rod 231. The second telescopic rod 231 is hinged to both ends of the lower plate 2221. By simultaneously controlling the extension or retraction of the second telescopic rod 231, the rotating frame 23 is driven to rotate around the short shaft, thereby changing the angle of the rotating frame 23. The lower surface of the rotating frame 23 is provided with an extension arm 232 at the four corners. The lower ends of two extension arms 232 are movably connected to one side of the cutter head mounting frame 24.

[0049] A cutter head motor 241 is provided on the upper surface of the cutter head mounting bracket 24, and a first cutter head 242 is connected to the lower surface of the cutter head mounting bracket 24 via a support frame. The cutter head motor 241 is connected to the first cutter head 242 through a transmission structure, which can be a sprocket and chain assembly or a belt and pulley assembly. The cutter head motor 241 drives the first cutter head 242 to rotate through the transmission structure to achieve the cutting action. The cutter head mounting frame 24 has symmetrically arranged arc-shaped grooves 243 on its side wall. The arc-shaped grooves 243 are movably connected to the other two extension arms 232 of the rotating frame 23. In addition, the lower surface of the rotating frame 23 is provided with a third telescopic rod 233. The third telescopic rod 233 is movably connected to the outer wall of the cutter head motor 241. The third telescopic rod 233 pulls one end of the cutter head motor 241. When the third telescopic rod 233 extends or retracts, it drives the cutter head mounting frame 24 to rotate around the extension arms 232, changing the angle of the cutter head mounting frame 24. Correspondingly, it changes the angle of the first cutter head 242, which can adjust the cutting angle of the first cutter head 242, thereby cutting the asphalt pavement at an angle, increasing the bonding area between the newly laid asphalt and the pavement, and improving the firmness.

[0050] The second cutting unit 3 has the same structure as the first cutting unit 2, but uses different first cutter head 242 structures to select for different cutting positions. For example, the first cutting unit 2 uses a large-diameter first cutter head 242 for fast straight cutting, while the second cutting unit 3 uses a small-diameter first cutter head 242 for turning or curved cutting, meeting various cutting needs. It is important to note that the Y-axis moving guide rail of the second cutting unit 3 is located below the Y-axis moving guide rail of the first cutting unit 2, and the Y-axis moving guide rail of the second cutting unit 3 is movably connected to the Y-axis moving guide rail of the first cutting unit 2. The position of the Y-axis moving guide rail of the first cutting unit 2 is fixed, and the two Y-axis moving guide rails are connected by a gear and rack. Opposing racks 31 are provided on the opposite sides of the two Y-axis moving guide rails. A movable gear 32 is provided, which is connected to a long-stroke cylinder 33 via a bracket. The long-stroke cylinder 33 is fixed on the side wall of the Y-axis movable guide rail. When the long-stroke cylinder 33 works, it drives the movable gear 32 to roll along the Y-axis movable guide rail fixed to the first cutting unit 2, and drives the Y-axis movable guide rail of the second cutting unit 3 to slide. The Y-axis movable guide rail of the second cutting unit 3 itself can move to change its position, thereby changing the overall position of the second cutting unit 3. It can overlap with the working area of ​​the first cutting unit 2 to supplement the cutting work of the first cutting unit 2. At the same time, the second cutting unit 3 can move out of the working area of ​​the first cutting unit 2 to avoid interfering with the work of the first cutting unit 2. After moving out of the working area of ​​the first cutting unit 2, the second cutting unit 3 moves to the working range of the milling unit 4 to supplement the work in areas that the milling unit 4 cannot reach.

[0051] Furthermore, the milling unit 4 includes a horizontal moving assembly 41 and a movable plate 42 mounted on the horizontal moving assembly 41. The horizontal moving assembly 41 is similar in structure to the planar drive assembly 21, both used to control the movement of the movable plate 42 along the Y-axis and X-axis. Telescopic frames 43 are symmetrically arranged on both sides of the movable plate 42. The telescopic frames 43 are controlled to extend and retract by hydraulic cylinders. A motor-driven milling cutter roller 44 is mounted at the lower end of one of the telescopic frames 43, and a milling cutter head is mounted on the milling cutter roller 44. The milling cutter roller 44 quickly removes all waste material within the cutting contour. A cleaning device is mounted at the lower end of the other telescopic frame 43. In addition to the cleaning box 45, a motor-driven cleaning roller 451 is installed inside the cleaning box 45. A pusher plate is provided on the surface of the cleaning roller 451. When the cleaning roller 451 rotates, the waste asphalt is pushed into the cleaning box 45 through the pusher plate. A screw conveyor 452 is provided on one side of the cleaning box 45. The outlet of the screw conveyor 452 is located at the top. In use, the outlet of the screw conveyor 452 is connected to a conduit, which can discharge the collected waste asphalt through the conduit. Correspondingly, an openable waste outlet 12 is provided on the mobile frame 1 near the outlet of the screw conveyor 452 for placing the conduit.

[0052] The asphalt paving and compaction module includes an asphalt heating output unit 5 and a compaction unit 6. The asphalt heating output unit 5 includes an asphalt heating cylinder 51, a mixing paddle 52, a spiral blade 53, and an opening and closing assembly 54. The upper end of the asphalt heating cylinder 51 is provided with a feed inlet 511, and the mixing paddle 52 is provided inside the asphalt heating cylinder 51. The lower end of the asphalt heating cylinder 51 is provided with a long cylinder 512, which is connected to the asphalt heating cylinder 51. The spiral blade 53 is provided inside the long cylinder 512. Both the mixing paddle 52 and the spiral blade 53 are controlled by a motor and can heat the asphalt material inside the asphalt heating cylinder 51. Simultaneously, mixing and stirring are carried out. The spiral blades 53 change the movement path of the asphalt material in the asphalt heating cylinder 51, thereby improving the heating effect more fully. In addition, a discharge port 513 is provided at the bottom of the long cylinder 512. An opening and closing component 54 is provided on the discharge port 513. The opening and closing component 54 includes an opening and closing cylinder 541 and an opening and closing plate 542 that is movably connected to the discharge port 513. There are two opening and closing plates 542 and two opening and closing cylinders 541. One opening and closing cylinder 541 controls one opening and closing plate 542. The opening and closing plate 542 is controlled by the opening and closing cylinder 541 to open at the corresponding discharge port 513 for precise material feeding.

[0053] Correspondingly, the compaction unit 6 is located on one side of the asphalt heating output unit 5 to compact the output asphalt material. The compaction unit 6 includes an integral mounting frame 61, a first compaction roller 62, a second compaction roller 63, and a gear assembly 64. The integral mounting frame 61 is connected to the mobile frame 1 via a hydraulic cylinder to control the up and down movement of the integral mounting frame 61. The integral mounting frame 61 is movably connected to the first compaction roller 62 via a bracket. The gear assembly 64 includes a first gear 641, a second gear 642, a third gear 643, a position control motor 644, a drive screw 645, and a screw slider 646. Gear 642 and third gear 643 are sequentially mounted on hinged mounting plate 647 and mesh in sequence. First gear 641 is fixedly connected to one end of first compaction roller 62, and third gear 643 is movably connected to lead screw slider 646. Lead screw slider 646 meshes with drive lead screw 645. One end of drive lead screw 645 is connected to the output end of position control motor 644. A gear motor 6431 is provided on lead screw slider 646 to control the rotation of third gear 643. Gear motor 6431 drives third gear 643 to rotate, thereby driving first gear 641 to rotate, controlling first compaction roller 62 to rotate unidirectionally to compact the road surface. It should be noted that a cam 6432 is provided on one side of the third gear 643. The cam 6432 is movably connected to the second compaction roller 63. Limit frames 631 are provided at both ends of the second compaction roller 63. The limit frames 631 are movably connected to the overall mounting frame 61. The overall mounting frame 61 controls the limit frames 631 to move only horizontally. The limit frames 631 are movably connected to the second compaction roller 63. When the cam 6432 rotates, it drives the limit frames 631 to move horizontally back and forth, controlling the second compaction roller 63 to roll the road surface back and forth, further improving the compaction effect and eliminating the need for repeated rolling.

[0054] To better demonstrate the repair process of the asphalt pavement shaping and repair device, this embodiment presents a repair method for the asphalt pavement shaping and repair device, including the following steps:

[0055] Step 1: The operator drives the mobile chassis 1 close to the target defect area. The defect identification module 11 is activated. Its 3D laser scanner and high-resolution industrial camera, assisted by a supplementary lighting system, perform high-speed scanning and imaging of the road surface, generating a "digital twin model of the defect" containing precise 3D coordinates (X, Y, Z) and surface texture. The control center receives this model, and the built-in algorithm automatically analyzes and identifies the type, boundary contour, and depth distribution of the defect. Subsequently, the control center generates multi-module collaborative operation instructions based on the following principles:

[0056] Path planning for the partition shaping module: Determine the cutting boundaries of the first cutting unit 2 and the second cutting unit 3 respectively, such as the first unit being responsible for the long straight edge and the second unit being responsible for the short edge or arc, as well as the milling area and depth of the milling unit 4;

[0057] Set parameters for subsequent modules: estimate the volume of waste asphalt, prepare the corresponding output amount for asphalt heating output unit 5, and set the compaction mode for compaction unit 6.

[0058] Step 2: According to the instructions, the first cutting unit 2 and the second cutting unit 3 move to the planned starting point through their planar drive components 21, and the vertical drive component 22 controls the lifting plate 222 to descend, so that the first cutter head 242 contacts the road surface. The cutter head motor 241 starts and drives the cutter head to rotate at high speed. The two cutting units move along the planned path and cut out neat, vertical or beveled boundaries around the damaged area. The second telescopic rod 231 and the third telescopic rod 233 can work together to adjust the angle of the rotating frame 23 and the cutter head mounting frame 24 to achieve bevel cutting and increase the subsequent bonding area. When it is necessary to process complex contours, the second cutting unit 3 can move laterally through its gear and rack transmission mechanism to make its working area coincide with or separate from the first unit, flexibly supplementing the curve cutting, or avoiding the milling area to assist in trimming.

[0059] Step 3: After the cutting is completed, the milling unit 4 intervenes. Its horizontal moving component 41 positions the movable plate 42 within the cutting boundary, and the telescopic frame 43 on one side descends, so that the milling cutter roller 44 mills the waste asphalt in the area in layers according to the planned depth. The fragments generated by milling are thrown to the rear and immediately collected by the cleaning roller 451 in the cleaning box 45 on the other side, and discharged to the outside of the vehicle or collection bin in real time through the waste outlet 12 via the screw conveyor 452.

[0060] Step 4: The asphalt heating output unit 5 has preheated the asphalt mixture and uniformly stirred and kept it warm by the mixing paddle 52 and the spiral blade 53; when the vehicle moves and aligns the pit with the discharge port 513, the control center commands the corresponding opening and closing cylinder 541 to act, opening the opening and closing plate 542, and the warm asphalt mixture is accurately and quantitatively filled into the pit under the assistance of gravity and the spiral blade 53.

[0061] Step 5: Following the compaction unit 6, the overall mounting frame 61 descends under the action of the hydraulic cylinder, causing the first compaction roller 62 and the second compaction roller 63 to contact the asphalt mixture. The gear motor 6431 drives the gear assembly 64, causing the first compaction roller 62 to roll unidirectionally, performing preliminary compaction and leveling of the asphalt. At the same time, the cam 6432 in the gear set rotates with the third gear 643, pushing the limit frame 631 to drive the second compaction roller 63 to perform high-frequency horizontal reciprocating motion, vibrating and kneading the paved asphalt. Throughout the compaction process, the position control motor 644 can finely adjust the position of the gear assembly through the drive screw 645 to adapt to different road conditions.

[0062] Step Six: Once the control center determines that the repair is complete based on preset parameters, it instructs all working units to stop and move to the transport position. The defect identification module 11 can then quickly scan the repaired area again, compare it with the original data, and automatically generate a repair quality report.

[0063] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0064] Although embodiments of the 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 invention.

Claims

1. An asphalt pavement shaping and repair device, comprising a mobile frame, characterized in that, The mobile frame has a defect identification module installed on its underside near the front end, used to detect and generate the contour and depth information of road defects; a zoning shaping module is installed in the middle of the mobile frame, used to perform contour milling or cutting on the defect area based on the contour and depth information; an asphalt paving and compaction module is installed at the rear end of the mobile frame; a control center is also installed inside the mobile frame, electrically connected to the defect identification module, the zoning shaping module, and the asphalt paving and compaction module, used to receive information and control the coordinated operation of each module; The partition shaping module includes a first cutting unit, a second cutting unit, and a milling unit; the first cutting unit includes a planar drive assembly, a vertical drive assembly, a rotary frame, and a cutter head mounting frame connected in sequence. The second cutting unit has the same structure as the first cutting unit, and the second cutting unit and the first cutting unit are movably connected through a gear and rack mechanism. The milling unit includes a horizontally moving component, a movable plate, a symmetrically arranged telescopic frame, a milling cutter roller, and a cleaning box connected in sequence; the cleaning box is equipped with a cleaning roller, and a screw conveyor is connected to one side of the cleaning box; The asphalt paving and compaction module includes an asphalt heating output unit and a compaction unit; The vertical drive assembly is mounted on the slider structure of the planar drive assembly. The vertical drive assembly includes a first telescopic rod and a lifting plate. The first telescopic rod is used to control the up and down movement of the lifting plate. A lower plate is connected to the lower surface of the lifting plate through a short shaft. A rotating frame is sleeved on the short shaft. The side wall of the rotating frame is hinged to the lower plate through a second telescopic rod, which is used to drive the rotating frame to rotate around the short shaft. The lower surface of the rotating frame is provided with an extension arm, which is movably connected to the cutter head mounting frame; the cutter head mounting frame is provided with a cutter head motor, and the lower surface of the cutter head mounting frame is provided with a first cutter head; the lower surface of the rotating frame is also provided with a third telescopic rod, which is movably connected to the outer wall of the cutter head motor, and is used to pull the cutter head mounting frame to rotate around the extension arm to change the cutting angle of the first cutter head. The second cutting unit and the first cutting unit use first cutter discs of different specifications. The planar drive components of the second cutting unit and the first cutting unit are both equipped with Y-axis moving guide rails. The two Y-axis moving guide rails are movably connected by a gear and rack mechanism, so that the second cutting unit can move laterally relative to the first cutting unit to expand or avoid the working area. The gear and rack mechanism includes opposing racks disposed on the opposing sides of two Y-axis moving guide rails, a moving gear meshing between the two opposing racks, and a long-stroke cylinder that drives the moving gear to roll along the opposing racks.

2. The asphalt pavement shaping and repair device according to claim 1, characterized in that, The defect identification module includes at least a 3D laser scanner, a high-resolution industrial camera, and a supplementary lighting and protection system; the 3D laser scanner is used to acquire 3D point cloud data of the road surface; the high-resolution industrial camera is used to capture the texture features of the road surface.

3. The asphalt pavement shaping and repair device according to claim 2, characterized in that, The asphalt heating output unit includes an asphalt heating cylinder, a stirring paddle, a spiral blade, and an opening and closing assembly. The asphalt heating cylinder is equipped with a stirring paddle and a spiral blade. The opening and closing assembly is located on the asphalt heating cylinder below the spiral blade. The opening and closing assembly includes an opening and closing cylinder and an opening and closing plate, which are used to control the opening and closing of the discharge port.

4. The asphalt pavement shaping and repair device according to claim 3, characterized in that, The compaction unit includes an integral mounting frame, a first compaction roller, a second compaction roller, and a gear assembly; the gear assembly includes a first gear, a second gear, and a third gear that mesh in sequence, with the first gear fixedly connected to the first compaction roller.

5. The asphalt pavement shaping and repair device according to claim 4, characterized in that, The third gear is driven by a gear motor, and a cam is provided on one side of the third gear; the second compaction roller is provided with limit frames at both ends, and the cam is movably connected to the limit frames to drive the second compaction roller to reciprocate horizontally.

6. A repair method for an asphalt pavement reshaping and repair device as described in claim 5, characterized in that, Includes the following steps: S1: The disease identification module scans the target area and generates a digital model of the disease; the control center analyzes the model and plans the operation paths and parameters of each module. S2: The first and second cutting units precisely cut the periphery of the diseased area according to the planned path to form a repair boundary; S3: The milling unit mills the area within the boundary, and at the same time removes waste material synchronously through the cleaning box and the screw conveyor; S4: The asphalt heating output unit precisely fills the repair groove with the heat-insulating asphalt mixture; S5: The first compaction roller of the compaction unit rolls and compacts the asphalt, while the second compaction roller performs horizontal reciprocating kneading; S6: After the repair is completed, the defect identification module scans the repaired area again and generates a quality report.

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