Multifunctional integrated pavement maintenance operation vehicle and operation method thereof

Abstract

The invention discloses a multifunctional integrated pavement maintenance operation vehicle and an operation method thereof, and belongs to the technical field of pavement maintenance machinery. The multifunctional integrated pavement maintenance operation vehicle comprises an operation truck body and further comprises a maintenance storage module arranged at the top of the operation truck body; a sweeping and dust collecting module, a crack pouring module and a pit slot repairing module are sequentially arranged at the bottom of the operation truck body, a micro-surfacing paving module is arranged on the rear portion of the operation truck body, and the crack pouring module and the micro-surfacing paving module are both in butt joint with a maintenance storage module. According to the invention, the edge trimmer can be adaptive to pits with different sizes and shapes; damaged boundaries can be thoroughly removed without repeated trimming, excessive cutting of intact pavements or trimming omission is avoided, and repair material waste and maintenance cost are reduced; a regular boundary is formed after edge cutting, so that the fitting degree of the repairing material and the original pavement is improved, the later-stage falling problem caused by incomplete traditional edge cutting is solved, and the pit slot repairing quality and durability are greatly improved.

Description

Technical Field

[0001] This invention belongs to the field of road maintenance machinery technology, and in particular relates to a multi-functional integrated road maintenance vehicle and its operation method. Background Technology

[0002] As a core infrastructure of the transportation system, roads directly impact traffic efficiency, road safety, and socio-economic development. With accelerated urbanization and increased highway network density, asphalt and cement concrete pavements are prone to cracking, potholes, loosening, and rutting due to long-term use, influenced by factors such as the natural environment (temperature changes, rain and snow erosion), traffic loads (heavy vehicle traffic, high frequency of passage), and material aging. If not maintained promptly, these defects can rapidly expand, leading to structural damage, shortened lifespan, and even traffic accidents. Therefore, road maintenance is a crucial aspect of road operation and maintenance.

[0003] Currently, road maintenance operations mainly rely on traditional specialized equipment to be completed in stages and procedures. The industry generally adopts a single-function equipment combination operation mode, that is, for different types of defects, specialized equipment such as crack sealing trucks, pothole repair trucks, micro-surfacing pavers, and road sweepers are dispatched to cooperate in completing the maintenance tasks.

[0004] However, existing road maintenance vehicles are equipped with pothole cutting mechanisms that are mostly fixed structures. The cutting diameter or cutting range is preset to a single specification or a limited number of gears, which cannot be flexibly and accurately adjusted according to the actual size and shape of the potholes on the road.

[0005] Specifically, in actual maintenance scenarios, the size of potholes varies greatly, ranging from small, shallow potholes with a diameter of tens of millimeters to irregular damaged areas of hundreds of millimeters. Furthermore, most potholes are not standard circles or rectangles, often presenting as irregular polygons or having blurred edges. Existing cutting mechanisms on maintenance vehicles lack adaptive adjustment capabilities. If the pothole size is smaller than the minimum preset range of the cutting mechanism, forced cutting will result in a cutting area far exceeding the actual damaged area. This not only causes unnecessary damage to the original intact road surface but also increases the consumption of repair materials, leading to resource waste and increased maintenance costs. If the pothole size is larger than the maximum preset range of the cutting mechanism, or if the shape is irregular, multiple cutting operations are required to cover the entire damaged area. This is not only cumbersome and time-consuming but also prone to overlapping or omissions, resulting in incomplete removal of the pothole's damaged boundaries. Summary of the Invention

[0006] This invention provides a multi-functional integrated road maintenance vehicle and its operating method to solve the problems in the prior art.

[0007] The present invention adopts the following technical solution: a multi-functional integrated road maintenance vehicle, including a truck body and a maintenance storage module disposed on the top of the truck body. The bottom of the truck body is provided with a sweeping and dust extraction module, a crack filling module and a pothole repair module in sequence. The rear of the truck body is provided with a micro-surfacing paving module. The crack filling module and the micro-surfacing paving module are both connected to the maintenance storage module. The truck body is provided with a central control module for controlling the crack filling module, the pothole repair module, the micro-surfacing paving module and the maintenance storage module.

[0008] Furthermore, the maintenance storage module includes a grouting insulation tank, an aggregate insulation tank, and an asphalt insulation tank, which are sequentially arranged on the top of the working truck body. Each of the grouting insulation tank, aggregate insulation tank, and asphalt insulation tank is equipped with an insulation layer inside.

[0009] Furthermore, the cleaning and dust collection module includes a first mounting box located at the bottom of the work truck body. The first mounting box has two sliding grooves, and each of the two sliding grooves has a slider that slides with it. The slider is equipped with a sliding cylinder, and a hydraulically driven rotating brush is rotatably connected between the two sliders. The first mounting box is equipped with a centrifugal dust collection fan, which is set vertically downward. The first mounting box is also equipped with a high-pressure water spray nozzle.

[0010] Furthermore, the crack filling module includes a second mounting box located at the bottom of the work truck body. The second mounting box contains two symmetrically arranged first movable electric slides, and the two first movable electric slides are provided with horizontally arranged second movable electric slides. The second movable electric slides are provided with mounting plates, and the mounting plates are provided with a retractable crack filling gun and an automatic grooving machine.

[0011] Furthermore, the second mounting box is also equipped with an electric high-pressure grouting pump, which is connected to the grouting and insulation storage tank and the retractable grouting gun. The mounting plate is also equipped with a small dust collection device.

[0012] Furthermore, the pothole repair module includes a third mounting box located at the bottom of the work truck body. The third mounting box contains four rectangularly distributed hydraulic cylinders. The telescopic ends of the four hydraulic cylinders are equipped with horizontally arranged placement plates. The placement plates contain working motors, and the main shaft of the working motors is equipped with a drive plate. The bottom of the placement plates is equipped with two slide rails, and two sliding seats are provided between the two slide rails. The sliding seats are slidably engaged with the two slide rails. A hinged connecting plate is provided between the sliding seats and one end of the drive plate. Each sliding seat contains a horizontally arranged horizontal electric slide.

[0013] Furthermore, each of the horizontal electric slides is provided with a mounting box on its moving end. The mounting box contains a rotary motor, and the main shaft of the rotary motor is provided with a rotating disk. A hydraulically driven edge trimmer is mounted on the rotating disk.

[0014] Furthermore, the micro-surfacing paving module includes a fourth mounting box located at the bottom of the work truck body. The fourth mounting box contains two symmetrically arranged mounting frames, each containing a drive motor. The main shaft of the drive motor has a drive screw shaft, which is rotatably connected to the mounting frame. Each mounting frame also contains a vertical sliding rod and a sliding block that slides with the sliding rod. The sliding block is threadedly connected to the drive screw shaft. The bottom of the sliding block has a vertically arranged connecting rod, and the bottom of each of the two connecting rods has a horizontally arranged connecting frame. The connecting frame has several equally spaced flattening rollers.

[0015] Furthermore, the fourth installation box is also equipped with a discharge box, which is equipped with a horizontally arranged automatic spiral distributor. The automatic spiral distributor is connected to the aggregate insulation storage tank and the asphalt insulation storage tank.

[0016] A method for operating a multi-functional integrated road maintenance vehicle, comprising the following steps:

[0017] The first step is operation initiation and parameter preset: The central control module is initialized, and the insulation status of the maintenance storage module (grouting, aggregate, and asphalt insulation storage) is checked to ensure that the material performance meets the standards. At the same time, based on the pavement distress survey results, key indicators such as cleaning range, edge cutting parameters, joint sealing pressure, and paving thickness are preset, and each functional module is activated simultaneously to lay the foundation for precise operation;

[0018] The second step is road sweeping and debris removal: When the work vehicle is moving slowly, the sweeping and dust collection module drives the slider to adjust the position of the hydraulically driven rotating brush through the operation of the sliding cylinder. In conjunction with the high-pressure water spray nozzle, it washes away the dust and debris around the cracks and potholes. The centrifugal dust collection fan simultaneously sucks up the accumulated water and dust to ensure that the surface of the damaged area is clean and dry, and to avoid impurities affecting the adhesion of the repair materials.

[0019] The third step is crack grooving and precise crack filling: The central control module controls the electric slide of the crack filling module, which drives the automatic grooving machine to groove and remove debris along the crack trajectory. Then, the electric high-pressure grouting pump delivers the grouting material in the grouting and insulation storage tank to the retractable crack filling gun, which fills the crack according to the preset pressure, thereby sealing the damaged area and preventing the disease from spreading further.

[0020] The fourth step is adaptive edge cutting of potholes: For irregular potholes, the hydraulic cylinder of the pothole repair module adjusts the cutting height, the working motor drives the sliding seat to move along the slide rail, and the horizontal electric slide table flexibly adjusts the position of the hydraulically driven edge cutting machine to cut the edge of the pothole as needed, remove loose and damaged parts, form a regular repair boundary, and avoid over-cutting or omission.

[0021] Step 5, pothole material filling and paving: After the edge trimming is completed, the maintenance storage module delivers aggregate and asphalt mixture to the pothole area through an automatic spiral spreader. The pothole repair module's adaptive mechanism ensures that the material evenly covers the damaged area, the filling amount is adapted to the pothole depth, and the repair layer adheres well to the original pavement structure, reducing the risk of later detachment.

[0022] Step 6, micro-surfacing paving and compaction: For loose and rutted defects, the automatic spiral spreader mixes the aggregate and asphalt in proportion and spreads the material evenly. The drive motor adjusts the height of the compaction rollers through the drive screw shaft, and the connecting frame drives multiple sets of compaction rollers to compact and level the paving material, improving the smoothness and density of the road surface and restoring the road's traffic performance.

[0023] The above-described at least one technical solution adopted in the embodiments of the present invention can achieve the following beneficial effects:

[0024] Firstly, this invention targets irregular potholes. Four hydraulic cylinders adjust the height of the placement plate to adapt to the road surface. Then, a rotary motor drives the drive plate to rotate, which in turn drives two sliding seats to move laterally along two slide rails via a connecting plate. Combined with the fine adjustment of the horizontal electric slide table inside the sliding seats, the multi-dimensional position adjustment of the hydraulically driven edge trimmer is achieved. The rotary disc drives the edge trimmer to rotate, flexibly cutting the edges according to the actual size and shape of the pothole, removing loose and damaged parts, and forming a regular boundary. Then, the material conveyed by the maintenance and storage module and the automatic spiral feeder completes the filling.

[0025] This technology precisely addresses the pain points of fixed pothole cutting mechanisms in the background technology, which cannot adapt to irregular potholes. It achieves adaptive cutting through multi-dimensional adjustments, avoiding over-cutting of intact road surfaces or missing cutting edges. It eliminates the need for repeated cutting, shortening operation time and reducing repair material consumption and resource waste. The cut edges are neat, improving the adhesion between the repair material and the original road surface, reducing the risk of later detachment. Furthermore, it is integrated into an all-in-one work vehicle, eliminating the need for a separate pothole repair vehicle and simplifying the operation process.

[0026] Secondly, this invention integrates five core modules—maintenance storage, sweeping and vacuuming, crack sealing, pothole repair, and micro-surfacing paving—to achieve one-stop maintenance operations. It eliminates the need for separate scheduling of multiple devices, avoiding time losses due to equipment relocation and process connections, and significantly shortening the maintenance cycle. Each module operates precisely under the unified scheduling of the central control module, reducing manual coordination costs and addressing the pain point of low equipment coordination efficiency in traditional models, thus significantly improving the overall operational efficiency of road maintenance. Attached Figure Description

[0027] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention. In the drawings:

[0028] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0029] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0030] Figure 3 This is a three-dimensional structural diagram of the cleaning and vacuuming module in this invention;

[0031] Figure 4 This is a three-dimensional structural diagram of the crack filling module in this invention;

[0032] Figure 5 This is a three-dimensional structural diagram of the pit repair module in this invention;

[0033] Figure 6 This is a partial three-dimensional structural diagram of the pit repair module in this invention. Figure 1 ;

[0034] Figure 7 This is a partial three-dimensional structural diagram of the pit repair module in this invention. Figure 2 ;

[0035] Figure 8 for Figure 7 Enlarged view of point A in the middle;

[0036] Figure 9 This is a three-dimensional structural diagram of the micro-surfacing paving module in this invention;

[0037] Figure 10 This is a partial three-dimensional structural diagram of the micro-surfacing paving module in this invention;

[0038] Figure label:

[0039] The system includes: 1. Truck body; 2. Maintenance and storage module; 21. Grouting and insulation storage tank; 22. Aggregate insulation storage tank; 23. Asphalt insulation storage tank; 3. Sweeping and dust extraction module; 30. First mounting box; 31. Sliding block; 32. Sliding cylinder; 33. Hydraulically driven rotary brush; 34. Centrifugal dust extraction fan; 35. High-pressure water nozzle; 4. Crack filling module; 40. Second mounting box; 41. First movable electric slide; 42. Second movable electric slide; 43. Mounting plate; 44. Telescopic crack filling gun; 45. Automatic grooving machine; 46. Electric high-pressure grouting pump; 47. Small dust extraction device; and pit / trench. Repair module 5, third mounting box 50, hydraulic cylinder 51, placement plate 52, working motor 53, drive plate 54, slide rail 55, sliding seat 56, connecting plate 57, horizontal electric slide table 58, mounting box 59, rotary disk 590, hydraulically driven edge trimmer 591, rotary motor 592, micro-surfacing paving module 6, fourth mounting box 60, mounting frame 61, drive motor 62, drive screw shaft 63, slide bar 64, sliding block 65, connecting rod 66, connecting frame 67, flattening roller 68, discharge box 69, automatic spiral distributor 70. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0041] The following detailed description, in conjunction with the accompanying drawings, illustrates the technical solution of a multi-functional integrated road maintenance vehicle and its operating method provided by various embodiments of the present invention.

[0042] Reference Figures 1 to 10 As shown, this embodiment of the invention provides a multi-functional integrated road maintenance vehicle, including a truck body 1 and a maintenance storage module 2 disposed on the top of the truck body 1. The bottom of the truck body 1 is sequentially provided with a sweeping and dust extraction module 3, a crack filling module 4, and a pothole repair module 5. The rear of the truck body 1 is provided with a micro-surfacing paving module 6. Both the crack filling module 4 and the micro-surfacing paving module 6 are connected to the maintenance storage module 2. The truck body 1 is provided with a central control module for controlling the crack filling module 4, the pothole repair module 5, the micro-surfacing paving module 6, and the maintenance storage module 2.

[0043] As the core control unit of the work vehicle, it detects the operating status of each module and the material and temperature parameters of the maintenance storage module 2 during initialization; based on the road surface defect survey results, it presets indicators such as cleaning range, cutting parameters, crack filling pressure, and paving thickness; during operation, it synchronously coordinates the material supply rhythm of the maintenance storage module 2 with the operation sequence of the cleaning, crack filling, pothole repair, and paving modules to achieve linkage operation of each module, and provides real-time feedback and adjusts the operation parameters.

[0044] It solves the problems of poor coordination and cumbersome operation in traditional multi-equipment operations, realizes integrated centralized control, reduces manual intervention and lowers the difficulty of operation; each module operates precisely according to preset parameters, improving the standardization and accuracy of maintenance operations; real-time coordination of the rhythm of each process avoids process disconnection and shortens the overall operation time. Compared with the traditional single-function equipment combination operation mode, it significantly improves the comprehensive efficiency and quality stability of road maintenance.

[0045] Preferably, the maintenance storage module 2 includes a grouting and heat preservation tank 21, an aggregate heat preservation tank 22 and an asphalt heat preservation tank 23 arranged sequentially on the top of the working truck body 1, and the interior of the grouting and heat preservation tank 21, the aggregate heat preservation tank 22 and the asphalt heat preservation tank 23 are all provided with heat preservation layers.

[0046] The maintenance storage module 2 uses three independent insulated storage tanks: grouting grout 21, aggregate insulated storage tank 22, and asphalt insulated storage tank 23. These tanks store grouting material, repair aggregate, and asphalt material respectively. The internal insulation layer of the tanks continuously maintains a suitable temperature for the materials, preventing performance degradation due to temperature changes. This module is precisely connected to the crack grouting module 4, pothole repair module 5, and micro-surfacing paving module 6 via pipelines. Under the central control module's scheduling, the corresponding materials are delivered to each work module as needed, ensuring a continuous supply of materials for each maintenance process.

[0047] Preferably, the cleaning and dust collection module 3 includes a first mounting box 30 disposed at the bottom of the work truck body 1. The first mounting box 30 is provided with two sliding grooves, and each of the two sliding grooves is provided with a slider 31 that slides with it. The slider 31 is provided with a sliding cylinder 32. A hydraulically driven rotating brush 33 is rotatably connected between the two sliders 31. The first mounting box 30 is provided with a centrifugal dust collection fan 34, which is arranged vertically downward. The first mounting box 30 is also provided with a high-pressure water spray nozzle 35.

[0048] During operation, the sliding cylinder 32 drives the slider 31 to move along the slide groove, adjusting the lateral position of the hydraulically driven rotating brush 33 to adapt to the width of the diseased area; the high-pressure water nozzle 35 first sprays clean water around the cracks and pits to soften impurities, and the hydraulically driven rotating brush 33 rotates at high speed to sweep away debris. At the same time, the centrifugal vacuum fan 34 generates negative pressure vertically downward to simultaneously suck up accumulated water, dust and debris generated during sweeping, forming a coordinated operation process of water spraying, sweeping and vacuuming to ensure that the surface of the diseased area is clean and dry.

[0049] Compared to traditional single-function cleaning equipment, the cleaning range can be precisely adapted through slider 31, avoiding omissions or over-cleaning; high-pressure water spray and dust suction work together to remove impurities more thoroughly, solving the problem of insufficient adhesion of repair materials caused by incomplete cleaning in traditional methods; integrated into an all-in-one work vehicle, there is no need to separately dispatch the cleaning vehicle, shortening the process interval and improving overall work efficiency.

[0050] Preferably, the crack filling module 4 includes a second mounting box 40 disposed at the bottom of the working truck body 1. The second mounting box 40 is provided with two symmetrically arranged first movable electric slides 41. The two first movable electric slides 41 are provided with horizontally arranged second movable electric slides 42. The second movable electric slides 42 are provided with mounting plates 43. The mounting plates 43 are provided with retractable crack filling guns 44 and automatic grooving machines 45. The second mounting box 40 is also provided with an electric high-pressure grouting pump 46. The electric high-pressure grouting pump 46 is connected to the grouting and heat preservation storage tank 21 and the retractable crack filling gun 44. The mounting plates 43 are also provided with small dust collection devices 47.

[0051] According to the crack location parameters, the central control module controls the two first moving electric slides 41 and the second moving electric slides 42 to work together to adjust the horizontal position of the mounting plate 43, drive the automatic grooving machine 45 to groove along the crack trajectory and clean the debris through the small dust collection device 47; then the electric high-pressure grouting pump 46 draws the heat insulation grouting material from the grouting and heat insulation storage tank 21, and injects the grouting material into the grooved crack precisely according to the preset pressure through the retractable crack grouting gun 44 to complete the sealing operation.

[0052] This system solves the problems of traditional crack grouting requiring separate scheduling of grouting vehicles and separation of grooving and grouting processes, achieving integrated grooving and grouting operations. The first and second movable electric slides 41 and 42 are precisely adjustable to adapt to cracks of different lengths and orientations, resulting in higher grouting accuracy. High-pressure grouting ensures dense filling of the grout, effectively preventing crack propagation. Compared to traditional manual labor or single-function equipment, this system improves work efficiency and provides more stable maintenance quality.

[0053] Preferably, the pothole repair module 5 includes a third mounting box 50 disposed at the bottom of the work truck body 1. The third mounting box 50 is provided with four rectangularly distributed hydraulic cylinders 51. The telescopic ends of the four hydraulic cylinders 51 are provided with horizontally arranged placement plates 52. The placement plates 52 are provided with working motors 53. The main shaft of the working motors 53 is provided with a drive plate 54. The bottom of the placement plates 52 is provided with two slide rails 55. Two sliding seats 56 are provided between the two slide rails 55. The sliding seats 56 are slidably engaged with the two slide rails 55. A hinged connecting plate 57 is provided between one end of the sliding seats 56 and the drive plate 54. Each sliding seat 56 is provided with a horizontally arranged horizontal electric slide table 58.

[0054] Preferably, each of the horizontal electric slides 58 is provided with a mounting box 59 on its moving end. The mounting box 59 is provided with a rotary motor 592. The main shaft of the rotary motor 592 is provided with a rotating disk 590. A hydraulically driven edge trimmer 591 is mounted on the rotating disk 590.

[0055] For irregular potholes, four hydraulic cylinders 51 adjust the height of the placement plate 52 to match the road surface; then the working motor 53 drives the drive plate 54 to rotate, which drives the two sliding seats 56 to move laterally along the two slide rails 55 through the connecting plate 57. Combined with the fine adjustment of the horizontal electric slide table 58 in the sliding seat 56, the multi-dimensional position adjustment of the hydraulically driven edge trimmer 591 is realized; the rotary disk 590 drives the hydraulically driven edge trimmer 591 to rotate, flexibly cutting the edges according to the actual size and shape of the pothole, removing loose and damaged parts, forming a regular boundary, and then completing the filling with the material conveyed by the maintenance storage module 2 and the automatic spiral feeder 70.

[0056] This technology precisely addresses the pain points of fixed pothole cutting mechanisms in the background technology, which cannot adapt to irregular potholes. It achieves adaptive cutting through multi-dimensional adjustments, avoiding over-cutting of intact road surfaces or missing cutting edges. It eliminates the need for repeated cutting, shortening operation time and reducing repair material consumption and resource waste. The cut edges are neat, improving the adhesion between the repair material and the original road surface, reducing the risk of later detachment. Furthermore, it is integrated into an all-in-one work vehicle, eliminating the need for a separate pothole repair vehicle and simplifying the operation process.

[0057] It can adapt to potholes of different sizes and shapes; it can completely remove damaged boundaries without repeated cutting, avoiding over-cutting of the intact road surface or missing cutting edges, reducing repair material waste and maintenance costs; after cutting, it forms a regular boundary, improving the adhesion between the repair material and the original road surface, solving the problem of later detachment caused by incomplete cutting in traditional cutting, and greatly improving the quality and durability of pothole repair.

[0058] Preferably, the micro-surfacing paving module 6 includes a fourth mounting box 60 disposed at the bottom of the work truck body 1. The fourth mounting box 60 has two symmetrically arranged mounting frames 61. Each mounting frame 61 has a drive motor 62. The main shaft of the drive motor 62 has a drive screw shaft 63. The drive screw shaft 63 is rotatably connected to the mounting frame 61. The mounting frame 61 also has a vertical sliding rod 64. The mounting frame 61 has a sliding block 65 that slides with the sliding rod 64. The sliding block 65 is threadedly connected to the drive screw shaft 63. The bottom of the sliding block 65 has a vertically arranged connecting rod 66. The bottom of each of the two connecting rods 66 has a horizontally arranged connecting frame 67. The connecting frame 67 has a plurality of equally spaced flattening rollers 68. The fourth installation box 60 is also provided with a discharge box 69. The discharge box 69 is provided with a horizontally arranged automatic spiral feeder 70. The automatic spiral feeder 70 is connected to the aggregate insulation storage tank 22 and the asphalt insulation storage tank 23.

[0059] The automatic spiral spreader 70 receives materials from the aggregate insulation storage tank 22 and the asphalt insulation storage tank 23, mixes them according to a preset ratio, and evenly spreads them to the loose and rutted areas. The drive motor 62 drives the drive screw shaft 63 to rotate. Through the cooperation of the sliding block 65 and the sliding rod 64, the height of the connecting rod 66 is adjusted so that the multiple sets of flattening rollers 68 on the connecting frame 67 are adapted to the road surface height. During the operation of the work vehicle, the flattening rollers 68 compact and level the paved material at equal intervals to restore the smoothness of the road surface.

[0060] To address the issues of individual scheduling, uneven material distribution, and poor compaction in traditional micro-surfacing pavers, the automatic auger spreader 70 ensures uniform material mixing and consistent paving thickness; the compaction roller 68 has a precisely adjustable height to adapt to different depths of defects, and multiple sets of compaction rollers 68 improve road surface density and smoothness; integrated into an integrated work vehicle, it seamlessly connects with previous cleaning and repair processes, improving the continuity and overall quality of maintenance operations.

[0061] A method for operating a multi-functional integrated road maintenance vehicle, comprising the following steps:

[0062] The first step is operation initiation and parameter preset: The central control module is initialized, and the insulation status of the maintenance storage module 2 (grouting, aggregate, and asphalt insulation storage) is checked to ensure that the material performance meets the standards. At the same time, based on the results of the pavement distress survey, key indicators such as the cleaning range, edge cutting parameters, joint filling pressure, and paving thickness are preset, and each functional module is activated simultaneously to lay the foundation for precise operation;

[0063] The second step is road sweeping and debris removal: When the work vehicle is moving slowly, the sweeping and dust collection module 3 drives the slider 31 to adjust the position of the hydraulically driven rotating brush 33 through the working of the sliding cylinder 32. In conjunction with the high-pressure water nozzle 35, it washes away the dust and debris around the cracks and potholes. The centrifugal dust collection fan 34 simultaneously sucks up the accumulated water and dust to ensure that the surface of the damaged area is clean and dry, and to avoid impurities affecting the adhesion of the repair materials.

[0064] The third step is crack grooving and precise crack filling: The central control module controls the electric slide of the crack filling module 4, which drives the automatic grooving machine 45 to groove and remove debris along the crack trajectory. Then, the electric high-pressure grouting pump 46 delivers the grouting material in the grouting and insulation storage tank 21 to the retractable crack filling gun 44, which fills the crack according to the preset pressure, thereby sealing the damaged area and preventing the disease from spreading further.

[0065] The fourth step is adaptive edge cutting of the pits: For irregular pits, the hydraulic cylinder 51 of the pit repair module 5 adjusts the cutting height, the working motor 53 drives the sliding seat 56 to move along the slide rail 55, and the horizontal electric slide table 58 flexibly adjusts the position of the hydraulically driven edge cutting machine 591 to cut the edge of the pit as needed, remove loose and damaged parts, form a regular repair boundary, and avoid over-cutting or omission.

[0066] Step 5, pothole material filling and paving: After the edge is cut, the maintenance storage module 2 delivers aggregate and asphalt mixture to the pothole area through the automatic spiral spreader 70. The adaptive mechanism of the pothole repair module 5 ensures that the material evenly covers the damaged area, the filling amount is adapted to the pothole depth, and the repair layer adheres well to the original road structure, reducing the risk of later detachment.

[0067] Step 6, micro-surfacing paving and compaction: For loose and rutted defects, the automatic spiral spreader 70 mixes the aggregate and asphalt in proportion and spreads the material evenly. The drive motor 62 adjusts the height of the compaction roller 68 through the drive screw shaft 63. The connecting frame 67 drives multiple sets of compaction rollers 68 to compact and level the paving material, improve the smoothness and density of the road surface, and restore the road's traffic performance.

[0068] The above description is merely an embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A multi-functional integrated road maintenance vehicle, comprising a truck body (1), characterized in that, It also includes a maintenance storage module (2) set on the top of the work truck body (1). The bottom of the work truck body (1) is provided with a sweeping and dust extraction module (3), a crack filling module (4) and a pothole repair module (5). The rear of the work truck body (1) is provided with a micro-surfacing paving module (6). The crack filling module (4) and the micro-surfacing paving module (6) are both connected to the maintenance storage module (2). The work truck body (1) is provided with a central control module that controls the crack filling module (4), the pothole repair module (5), the micro-surfacing paving module (6) and the maintenance storage module (2).

2. The multi-functional integrated road maintenance vehicle according to claim 1, characterized in that: The maintenance storage module (2) includes a grouting and heat preservation tank (21), an aggregate heat preservation tank (22) and an asphalt heat preservation tank (23) arranged sequentially on the top of the working truck body (1). The grouting and heat preservation tank (21), the aggregate heat preservation tank (22) and the asphalt heat preservation tank (23) are all equipped with heat preservation layers inside.

3. The multi-functional integrated road maintenance vehicle according to claim 1, characterized in that: The cleaning and dust collection module (3) includes a first mounting box (30) located at the bottom of the work truck body (1). The first mounting box (30) has two sliding grooves, and each of the two sliding grooves has a slider (31) that slides with it. The slider (31) is equipped with a sliding cylinder (32). A hydraulically driven rotating brush (33) is rotatably connected between the two sliders (31). The first mounting box (30) is equipped with a centrifugal dust collection fan (34), which is set vertically downward. The first mounting box (30) is also equipped with a high-pressure water spray nozzle (35).

4. The multi-functional integrated road maintenance vehicle according to claim 2, characterized in that: The crack filling module (4) includes a second mounting box (40) located at the bottom of the work truck body (1). The second mounting box (40) has two symmetrically arranged first movable electric slides (41). The two first movable electric slides (41) have horizontally arranged second movable electric slides (42). The second movable electric slides (42) have mounting plates (43). The mounting plates (43) have retractable crack filling guns (44) and automatic grooving machines (45).

5. A multi-functional integrated road maintenance vehicle according to claim 4, characterized in that: The second mounting box (40) is also equipped with an electric high-pressure grouting pump (46), which is connected to the grouting and heat preservation storage tank (21) and the retractable grouting gun (44). The mounting plate (43) is also equipped with a small dust collection device (47).

6. The multi-functional integrated road maintenance vehicle according to claim 1, characterized in that: The pothole repair module (5) includes a third mounting box (50) located at the bottom of the work truck body (1). The third mounting box (50) contains four rectangularly distributed hydraulic cylinders (51). The telescopic ends of the four hydraulic cylinders (51) are provided with horizontally arranged placement plates (52). The placement plates (52) contain a working motor (53). The main shaft of the working motor (53) is provided with a drive plate (54). The bottom of the placement plate (52) is provided with two slide rails (55). Two sliding seats (56) are provided between the two slide rails (55). The sliding seats (56) are slidably engaged with the two slide rails (55). A hinged connecting plate (57) is provided between one end of the sliding seat (56) and the drive plate (54). Each sliding seat (56) contains a horizontally arranged horizontal electric slide (58).

7. A multi-functional integrated road maintenance vehicle according to claim 6, characterized in that: Each of the horizontal electric slides (58) has a mounting box (59) on its moving end. The mounting box (59) contains a rotary motor (592). The main shaft of the rotary motor (592) is equipped with a rotary disk (590). A hydraulically driven edge trimmer (591) is mounted on the rotary disk (590).

8. A multi-functional integrated road maintenance vehicle according to claim 2, characterized in that: The micro-surfacing paving module (6) includes a fourth mounting box (60) located at the bottom of the work truck body (1). The fourth mounting box (60) has two symmetrically arranged mounting frames (61). Each mounting frame (61) has a drive motor (62). The main shaft of the drive motor (62) has a drive screw shaft (63). The drive screw shaft (63) is rotatably connected to the mounting frame (61). The mounting frame (61) also has a vertical slide rod (64). The mounting frame (61) has a sliding block (65) that slides with the slide rod (64). The sliding block (65) is threadedly connected to the drive screw shaft (63). The bottom of the sliding block (65) has a vertically arranged connecting rod (66). The bottom of the two connecting rods (66) has a horizontally arranged connecting frame (67). The connecting frame (67) has several equally spaced flattening rollers (68).

9. A multi-functional integrated road maintenance vehicle according to claim 8, characterized in that: The fourth installation box (60) is also equipped with a discharge box (69), and the discharge box (69) is equipped with a horizontally arranged automatic spiral feeder (70), which is connected to the aggregate insulation storage tank (22) and the asphalt insulation storage tank (23).

10. The operating method of a multi-functional integrated road maintenance vehicle according to any one of claims 1-9, characterized in that: The work method includes the following steps: The first step is to start the operation and preset the parameters: the central control module is initialized, and the insulation status of the maintenance storage module (2) (grouting, aggregate, asphalt insulation storage) is checked to ensure that the material performance meets the standards; at the same time, based on the results of the road surface defect survey, the key indicators such as the cleaning range, cutting parameters, joint filling pressure and paving thickness are preset, and the various functional modules are activated simultaneously to lay the foundation for precise operation. The second step is road cleaning and impurity removal: When the work vehicle is moving slowly, the cleaning and dust removal module (3) drives the slider (31) to adjust the position of the hydraulically driven rotating brush (33) through the working of the sliding cylinder (32). In conjunction with the high-pressure water nozzle (35), the dust and debris around the cracks and potholes are washed away. The centrifugal dust removal fan (34) simultaneously removes water and dust to ensure that the surface of the damaged area is clean and dry, and to avoid impurities affecting the adhesion of the repair material. The third step is crack grooving and precise crack filling: The central control module controls the electric slide of the crack filling module (4), which drives the automatic grooving machine (45) to groove and clean the debris along the crack trajectory. Then, the electric high-pressure grouting pump (46) delivers the grouting material in the grouting and heat preservation tank (21) to the telescopic crack filling gun (44) to fill the crack according to the preset pressure, thereby sealing the damaged area and preventing the disease from spreading further. Step 4, Adaptive edge trimming of pits: For irregular pits, the hydraulic cylinder (51) of the pit repair module (5) adjusts the trimming height, the working motor (53) drives the sliding seat (56) to move along the slide rail (55), and the horizontal electric slide table (58) flexibly adjusts the position of the hydraulic drive trimming machine (591) to cut the edge of the pit as needed, remove loose and damaged parts, form a regular repair boundary, and avoid over-cutting or omission; Step 5, pothole material filling and paving: After the edge is cut, the maintenance storage module (2) delivers aggregate and asphalt mixture to the pothole area through the automatic spiral spreader (70). The adaptive mechanism of the pothole repair module (5) ensures that the material evenly covers the damaged area, the filling amount is adapted to the pothole depth, and the fit between the repair layer and the original road structure is guaranteed, reducing the risk of later detachment. Step 6, micro-surfacing paving and compaction: For loose and rutted defects, the automatic spiral spreader (70) mixes the aggregate and asphalt in proportion and spreads the material evenly. The drive motor (62) adjusts the height of the compaction roller (68) through the drive screw shaft (63). The connecting frame (67) drives multiple sets of compaction rollers (68) to compact and level the paving material, improve the smoothness and density of the road surface, and restore the road surface traffic performance.

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