A road surface micro-texture reconstruction device, method and wear-resistant texture

Abstract

The present invention discloses a road surface micro-texture reconstruction device, method and wear-resistant texture, including a driving base, an energy supply module, an operation module and an environmental control module. When the device is in operation, a laser generator and a laser focusing transmitter work, and the laser beam emitted by the laser focusing transmitter performs laser texture reconstruction on the road surface. On the basis of the original road surface macro structure, a high-energy laser beam is used to reconstruct the micro-texture of the exposed smooth aggregate of the road surface, thereby improving the anti-skid performance of the road surface and saving construction costs. The driving base drives the energy supply module, the operation module and the environmental control module to travel along the road surface, which can effectively improve the operation efficiency of the equipment. At the same time, the smoke purifier processes the smoke generated during the operation to minimize the pollution of the environment caused by the operation.

Description

Technical Field

[0001] The present invention relates to the technical field of pavement maintenance, and in particular to a pavement micro-texture reconstruction device, method and wear-resistant texture. Background Art

[0002] The anti-skid performance of the road surface is closely related to driving safety, road service life and road maintenance costs. After 3 to 5 years of use, the micro texture of the wheel track of the newly built road surface is gradually polished due to vehicle load and tire friction, while the macro structure at the corresponding position only undergoes slight compaction deformation. The fundamental reason for the insufficient anti-skid performance of the road surface is the wear and tear of the micro texture. The results of the road safety survey show that improving the anti-skid performance of the road surface is conducive to reducing the traffic accident rate. Therefore, restoring the anti-skid performance of the old road surface is the key to reducing road traffic accidents.

[0003] Traditional anti-skid lifting technologies include milling and resurfacing and adding wear layers. Traditional technologies consume a large amount of high-quality aggregates and asphalt materials, and require a series of high economic and labor cost operations such as mixing, transportation, and paving. The carbon dioxide emission equivalent is 6.97-7.95kg / m 2 , which is not in line with the need for carbon reduction. In addition, milling can easily damage the original road surface structure, and the traditional technology wastes the road performance of the original lane pavement and the anti-skid performance provided by the original macro structure. In addition, the milling process is very likely to cause environmental pollution and affect the surrounding environment. Summary of the invention

[0004] The purpose of the present invention is to provide a road surface micro-texture reconstruction device, method and wear-resistant texture to solve the problems existing in the above-mentioned related technologies. On the basis of the original road surface macro-structure, the micro-texture of the exposed smooth aggregate of the road surface is reconstructed by a laser beam, thereby improving the road surface's anti-skid performance, saving construction costs, and avoiding environmental pollution to the greatest extent.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] The present invention provides a road surface micro-texture reconstruction device, comprising:

[0007] A running base, wherein the running base can run on a cement or asphalt road surface;

[0008] An energy supply module, wherein the energy supply module is arranged on the travel base;

[0009] An operation module, the operation module comprises a frame, a laser generator and a laser focusing transmitter, the frame is connected to the travel base, the laser generator is arranged on the travel base, the laser focusing transmitter is connected to the frame, the laser generator is optically connected to the laser focusing transmitter, so that the laser generated by the laser generator is transmitted to the laser focusing transmitter, the laser generator and the laser focusing transmitter are both electrically connected to the energy supply module, and the laser beam of the laser focusing transmitter is emitted in a direction toward the working road surface, so as to reconstruct the micro texture of the road surface;

[0010] An environmental control module is arranged on the travel base, and the environmental control module includes a smoke purifier, which can process the smoke generated by the laser focusing transmitter during the micro-texture reconstruction of the road surface.

[0011] Preferably, the travel base adopts an electric drive travel mode;

[0012] A shock absorbing platform is arranged on the travel base, and the energy supply module is arranged on the shock absorbing platform;

[0013] The width of the travel base and the shock absorbing platform does not exceed 1200mm;

[0014] The travel speed range of the travel base is 1m / min~5m / min.

[0015] Preferably, the frame comprises a shell, a crossbeam and a connecting frame, the shell is a bottom open structure, the crossbeam is arranged in the shell, the laser focusing transmitter is connected to the crossbeam, and the shell is hinged to the travel base by the connecting frame;

[0016] The connecting frame is a triangular frame structure, one end of the vertex of the connecting frame is connected to the outer shell and the crossbeam, one end of the bottom side of the connecting frame is hinged to the traveling base, and one end of the bottom side of the connecting frame is hinged to the traveling base by a telescopic rod, and both ends of the telescopic rod are respectively hinged to the connecting frame and the traveling base, the length of the telescopic rod can be adjusted, and the hinge point of the telescopic rod and the connecting frame does not coincide with the hinge point of the traveling base and the connecting frame.

[0017] Preferably, the laser focusing transmitter is connected to the crossbeam by a self-leveling frame, and the self-leveling frame can adjust the height of the laser focusing transmitter to adapt to the ups and downs of the road surface and maintain the optimal focal range of the laser;

[0018] The self-leveling frame includes a frame body, a grounding wheel, a piston rod and a mounting head plate, the frame body is connected to the crossbeam, the grounding wheel is rotatably arranged at the bottom of the frame body, the piston rod is slidably connected to the frame body and an elastic element is arranged between the two, and the laser focusing transmitter is connected to the piston rod by the mounting head plate;

[0019] The crossbeam is parallel to the width direction of the road surface. The number of the laser focusing emitters is multiple groups. The laser focusing emitters are arranged along the length direction of the crossbeam. The self-leveling frame corresponds to the laser focusing emitters one by one.

[0020] Preferably, the environment control module further comprises a temperature control unit, the housing has an air supply hole, and the temperature control unit is connected to the air supply hole via a hose to deliver cold air into the housing;

[0021] The shell also has a smoking hole, and the smoke purifier is connected to the smoking hole via a hose.

[0022] Preferably, the road surface micro-texture reconstruction device further comprises a main box, the main box is arranged on the travel base, the main box has a built-in control element and a control panel, the laser generator and the smoke purifier are both arranged in the main box and are communicatively connected with the control element;

[0023] The temperature control unit includes a first temperature controller and a second temperature controller. The first temperature controller is arranged on the side of the main chassis and is connected to the inner cavity of the main chassis so that the temperature inside the main chassis is lower than 30°C. The second temperature controller is arranged in the main chassis and is connected to the outer shell so that the temperature inside the outer shell is lower than 40°C. The first temperature controller and the second temperature controller are both communicatively connected to the control element.

[0024] Preferably, the smoke purifier includes a purifier body and an exhaust fan, the purifier body has an air inlet and an air outlet, the air inlet is connected to the smoke generated during road operations by the exhaust fan, and along the direction from the air inlet to the air outlet, a coarse particle adsorption plate, a fine particle heating purification plate and filter cotton are sequentially arranged in the purifier body, the coarse particle adsorption plate can filter the coarse particles in the smoke, the fine particle heating purification plate can contact with the fine particles in the smoke and heat them to make them burn, and the filter cotton can filter the smoke.

[0025] The present invention also provides a road surface micro-texture reconstruction method, using the above-mentioned road surface micro-texture reconstruction device, comprising the following steps:

[0026] The traveling base drives the energy supply module, the operation module and the environmental control module to travel along the road surface, the laser generator and the laser focusing emitter work, the laser beam emitted by the laser focusing emitter performs laser texture reconstruction on the road surface, and the smoke purifier processes the smoke generated during the operation.

[0027] Preferably, before laser texturing is performed on the road surface, the surface friction coefficient of the road surface is measured to be BPN0;

[0028] The road surface is subjected to multiple laser texture reconstruction operations. After each laser texture reconstruction operation, the surface friction coefficient of the road surface operation area is measured as BPN. n ; Where n is a natural number greater than 0;

[0029] Surface friction coefficient BPN of the road working area n Stop the operation after meeting the requirements.

[0030] The present invention also provides a wear-resistant texture prepared by the above-mentioned road surface microtexture reconstruction method, wherein the wear-resistant texture comprises a plurality of side-by-side stepped convex patterns, each of the stepped convex patterns comprises N risers and N+1 treads, wherein N is a natural number greater than 1.

[0031] Compared with the related art, the present invention has achieved the following technical effects: the road surface micro-texture reconstruction equipment of the present invention includes a traveling base, an energy supply module, an operation module and an environmental control module, wherein the traveling base can travel on the road surface; the energy supply module is arranged on the traveling base; the operation module includes a frame, a laser generator and a laser focusing transmitter, the frame is connected to the traveling base, the laser generator is arranged on the traveling base, the laser focusing transmitter is connected to the frame, the laser generator and the laser focusing transmitter are optically connected so that the laser generated by the laser generator is transmitted to the laser focusing transmitter, the laser generator and the laser focusing transmitter are both electrically connected to the energy supply module, and the laser beam of the laser focusing transmitter is emitted in a direction toward the road surface to reconstruct the micro-texture of the road surface; the environmental control module is arranged on the traveling base, and the environmental control module includes a smoke purifier, which can process the smoke generated by the laser focusing transmitter during the process of reconstructing the micro-texture of the road surface.

[0032] The road surface micro-texture reconstruction equipment of the present invention, when in operation, the laser generator and the laser focusing transmitter work, and the laser beam emitted by the laser focusing transmitter performs laser texture reconstruction on the road surface. On the basis of the original macroscopic structure of the road surface, a high-energy laser beam is used to reconstruct the micro-texture of the exposed smooth aggregate of the road surface, thereby improving the anti-skid performance of the road surface and saving construction costs. The travel base drives the energy supply module, the operation module and the environmental control module to travel along the road surface, which can effectively improve the operating efficiency of the equipment. At the same time, the smoke purifier processes the smoke generated during the reconstruction operation to minimize the pollution of the environment caused by the operation.

[0033] The present invention also provides a road surface microtexture reconstruction method, using the above-mentioned road surface microtexture reconstruction device. In addition, the present invention also provides a wear-resistant texture, which is prepared by the above-mentioned road surface microtexture reconstruction method. The road surface microtexture reconstruction method and wear-resistant texture of the present invention are applicable to asphalt pavements using different lithology aggregates and different grading types, and are also applicable to cement pavements, and can effectively restore the anti-skid performance and anti-skid durability of the pavement. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 It is a schematic structural diagram of a road surface micro-texture reconstruction device disclosed in an embodiment of the present invention;

[0036] Figure 2 A schematic side view of a road surface micro-texture reconstruction device disclosed in an embodiment of the present invention;

[0037] Figure 3 It is a schematic structural diagram of a frame of a road surface micro-texture reconstruction device disclosed in an embodiment of the present invention;

[0038] Figure 4 It is a structural schematic diagram of a self-leveling frame of a road surface micro-texture reconstruction device disclosed in an embodiment of the present invention;

[0039] Figure 5 A schematic structural diagram of a smoke purifier of a road surface micro-texture reconstruction device disclosed in an embodiment of the present invention;

[0040] Figure 6 A schematic top view of the wear-resistant texture disclosed in an embodiment of the present invention;

[0041] Figure 7 for Figure 6 Schematic diagram of the cross section along AA direction.

[0042] In the figure: 1. Traveling base; 2. Rack; 3. Main chassis; 4. Energy supply module; 5. First temperature controller; 6. Second temperature controller; 7. Smoke purifier; 8. Laser focusing transmitter; 9. Self-leveling frame;

[0043] 101. shock-absorbing platform; 102. telescopic rod; 201. connecting frame; 202. shell; 203. smoking hole; 204. air supply hole; 205. crossbeam; 301. laser generator; 302. control panel; 701. coarse particle adsorption plate; 702. fine particle heating purification plate; 703. filter cotton; 704. exhaust fan; 901. elastic element; 902. piston rod; 903. mounting head plate; 904. grounding wheel; A1. asphalt; A2. aggregate; A3. tread; A4. kick surface. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] The purpose of the present invention is to provide a road surface micro-texture reconstruction device, method and wear-resistant texture to solve the problems existing in the above-mentioned related technologies. On the basis of the original road surface macro-structure, the micro-texture of the exposed smooth aggregate of the road surface is reconstructed by a laser beam, thereby improving the road surface's anti-skid performance, saving construction costs, and avoiding environmental pollution to the greatest extent.

[0046] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0047] Embodiment 1

[0048] This embodiment provides a road surface micro-texture reconstruction device, please refer to Figure 1-Figure 7, including a traveling base 1, an energy supply module 4, an operation module and an environmental control module, wherein the traveling base 1 can travel on a road surface; the energy supply module 4 is arranged on the traveling base 1; the operation module includes a frame 2, a laser generator 301 and a laser focusing emitter 8, the frame 2 is connected to the traveling base 1, the laser generator 301 is arranged on the traveling base 1, the laser focusing emitter 8 is connected to the frame 2, the laser generator 301 is optically connected to the laser focusing emitter 8, so that the laser generated by the laser generator 301 is transmitted to the laser focusing emitter 8, the laser generator 301 and the laser focusing emitter 8 are both electrically connected to the energy supply module 4, and the laser beam of the laser focusing emitter 8 is emitted in a direction toward the road surface to reconstruct the micro-texture of the road surface; the environmental control module is arranged on the traveling base 1, and the environmental control module includes a smoke purifier 7, which can process the smoke generated by the laser focusing emitter 8 in the process of reconstructing the micro-texture of the road surface.

[0049] When the road surface micro-texture reconstruction equipment of the present invention is in operation, the laser generator 301 and the laser focusing transmitter 8 work, and the laser beam emitted by the laser focusing transmitter 8 performs laser texture reconstruction on the road surface. On the basis of the original macroscopic structure of the road surface, a high-energy laser beam is used to reconstruct the micro-texture of the exposed smooth aggregate A2 of the road surface, thereby improving the anti-skid performance of the road surface and saving construction costs. The travel base 1 drives the energy supply module 4, the operation module and the environmental control module to travel along the road surface, which can effectively improve the operation efficiency of the equipment. At the same time, the smoke purifier 7 processes the smoke generated during the operation to minimize the pollution of the environment caused by the operation.

[0050] It should be explained here that, in practical applications, the laser generator 301 and the laser focusing transmitter 8 can be connected by optical fiber, optical cable or the like to ensure smooth transmission of the laser.

[0051] The traveling base 1 adopts an electric driving mode, and the traveling base 1 has its own power supply to achieve normal driving.

[0052] In order to improve the stability of the energy supply module 4 during driving, a shock absorbing platform 101 is provided on the driving base 1 , and the energy supply module 4 is arranged on the shock absorbing platform 101 to ensure the smooth operation and stable energy supply of the energy supply module 4 .

[0053] In this specific embodiment, the width of the traveling base 1 and the shock absorbing platform 101 does not exceed 1200mm, which improves the operational flexibility and adaptability of the equipment, and the traveling speed range of the traveling base 1 is 1m / min~5m / min. In this specific embodiment, the power of the laser generator 301 is 1200W, and the spot diameter of the laser beam emitted by the laser focusing transmitter 8 is 0.3mm. It should also be noted that in actual applications, the power of the laser generator 301 can be set to ≥1200W, and the spot diameter of the laser beam output by the laser focusing transmitter 8 can range from 0.1mm to 0.8mm, and the spot size can be adjusted according to specific working conditions. In actual applications, the traveling speed of the traveling base 1, the power of the laser generator 301, and the spot size of the laser beam output by the laser focusing transmitter 8 can all be selected according to the lithology of the road stone and the type of road surface. It should also be noted here that, in this specific embodiment, the minimum power of the energy supply module 4 = 1.5×(number of laser generators 301×power of laser generators 301×3+number of laser focusing emitters 8×700+power of environmental control module) to ensure the normal operation of the road surface micro-texture reconstruction equipment.

[0054] Specifically, the frame 2 includes an outer shell 202, a crossbeam 205 and a connecting frame 201. The outer shell 202 is an open-bottom structure. The crossbeam 205 is arranged in the outer shell 202. The laser focusing transmitter 8 is connected to the crossbeam 205. The frame 2 provides stable support for the laser focusing transmitter 8. The outer shell 202 is arranged to cover the outside of the laser focusing transmitter 8, which effectively avoids dust splashing during the road reconstruction operation and is beneficial to reducing environmental pollution. The outer shell 202 is hinged to the driving base 1 by the connecting frame 201, and the angle between the outer shell 202 and the driving base 1 can be adjusted, which is convenient for adjusting the angle of the outer shell 202 according to different working conditions to meet different working requirements and improve the flexibility and adaptability of the frame 2.

[0055] In this specific embodiment, the connecting frame 201 is a triangular frame structure, one end of the vertex of the connecting frame 201 is connected to the shell 202 and the crossbeam 205, one end of the bottom side of the connecting frame 201 is hinged to the travel base 1, one end of the bottom side of the connecting frame 201 is hinged to the travel base 1 by means of a telescopic rod 102, the two ends of the telescopic rod 102 are respectively hinged to the connecting frame 201 and the travel base 1, the length of the telescopic rod 102 can be adjusted, the hinge point between the telescopic rod 102 and the connecting frame 201 does not coincide with the hinge point between the travel base 1 and the connecting frame 201, the hinge point between the telescopic rod 102 and the connecting frame 201, and the hinge point between the travel base 1 and the connecting frame 201 are all located on one side of the bottom side of the connecting frame 201, and these two points do not coincide. When the equipment is working, the telescopic rod 102 extends, driving the connecting frame 201, the crossbeam 205 and the shell 202 to be lowered, and the road surface micro-texture reconstruction operation is performed. After stopping working, the telescopic rod 102 retracts, driving the connecting frame 201, the cross beam 205 and the housing 202 to rise. In practical applications, the connecting frames 201 can be set on both sides of the cross beam 205, and the telescopic rod 102 corresponds to the cross beam 205 one by one to improve the force uniformity of the cross beam 205 and the travel base 1; the telescopic rod 102 can select a suitable structure according to the actual working conditions, and can select a hydraulic telescopic rod 102 or an electric telescopic rod 102.

[0056] More specifically, the laser focusing transmitter 8 is connected to the crossbeam 205 by means of a self-leveling frame 9, which can adjust the height of the laser focusing transmitter 8 to adapt it to the ups and downs of the road surface, thereby ensuring that the vertical distance between the laser focusing transmitter 8 and the road surface is maintained at h0±2mm, ensuring that the laser transmitter head of the laser focusing transmitter 8 is always in the optimal focal length range during operation, wherein h0 is determined according to the lithology of the road stone and the road surface type.

[0057] In this specific embodiment, the self-leveling frame 9 includes a frame body, a grounding wheel 904, a piston rod 902 and a mounting head plate 903. The frame body is connected to the crossbeam 205. The grounding wheel 904 is rotatably arranged at the bottom of the frame body. During operation, the grounding wheel 904 can contact the road surface to stably support the self-leveling frame 9. The piston rod 902 is slidably connected to the frame body and an elastic element 901 is arranged between the two. The laser focusing transmitter 8 is connected to the piston rod 902 by the mounting head plate 903. When encountering an uneven road surface, the elastic element 901 and the piston rod 902 form a self-leveling structure to ensure that the vertical distance between the mounting head plate 903 and the laser focusing transmitter 8 and the road surface is maintained within a certain range, thereby improving the processing stability and reliability of the laser beam. In practical applications, the elastic element 901 can be selected as a spring, which is convenient to disassemble and assemble, easy to replace and inexpensive.

[0058] In this specific embodiment, the crossbeam 205 is parallel to the width direction of the road surface, the number of laser focusing emitters 8 is multiple groups, and the laser focusing emitters 8 are arranged along the length direction of the crossbeam 205. The arrangement and spacing of the laser focusing emitters 8 can be adjusted according to the operation requirements. The number of laser focusing emitters 8 is selected according to the size of the operation area. They can be arranged separately on one side of the crossbeam 205, or divided into two groups and arranged on both sides of the crossbeam 205. The self-leveling frame 9 corresponds to the laser focusing emitters 8 one by one. It should also be noted here that in actual applications, along the travel direction of the travel base 1, the operation module can be set in front of and / or behind the travel base 1 to meet different operation requirements and improve the operation efficiency and flexible adaptability of the equipment.

[0059] Furthermore, the environmental control module also includes a temperature control unit. The housing 202 has an air supply hole 204. The temperature control unit is connected to the air supply hole 204 via a hose to transport cold air into the housing 202 to provide stable operating stability for the laser focusing transmitter 8.

[0060] Correspondingly, the shell 202 also has a smoking hole 203, and the smoke purifier 7 is connected to the smoking hole 203 by a hose. The smoke generated during the operation enters the smoke purifier 7 through the smoking hole 203 and the hose for purification, effectively avoiding the problem of open operation polluting the environment.

[0061] At the same time, the road surface microtexture reconstruction device of the present invention also includes a main box 3, which is arranged on the driving base 1. The main box 3 has a built-in control element and a control panel 302. The laser generator 301 and the smoke purifier 7 are both arranged in the main box 3 and are connected to the control element for communication. The control element is arranged to facilitate the operation of the operator and monitor the operation status of the equipment. The operator can use the control panel 302 to adjust the working status of the equipment in real time to meet different operation requirements. It should be noted here that in actual applications, a wireless communication element can also be arranged in the main box 3 to facilitate remote control operations and further improve the convenience of operation of the equipment. It should also be explained here that the structure and working principle of the control element are common means of those skilled in the art and will not be repeated here.

[0062] In this specific embodiment, the temperature control unit includes a first temperature controller 5 and a second temperature controller 6. The first temperature controller 5 is arranged on the side of the main chassis 3 and is connected to the inner cavity of the main chassis 3, so that the temperature inside the main chassis 3 is lower than 30°C, ensuring the normal operation of the main chassis 3. The second temperature controller 6 is arranged in the main chassis 3 and is connected to the outer shell 202, so that the temperature inside the outer shell 202 is lower than 40°C, ensuring the normal operation of the laser focusing transmitter 8; the first temperature controller 5 and the second temperature controller 6 are both communicated with the control element, which further facilitates the operation of the operator and improves the adaptability of the equipment.

[0063] Furthermore, the smoke purifier 7 includes a purifier body and an exhaust fan 704. The purifier body has an air inlet and an air outlet. The air inlet is connected to the smoke generated during the road operation by the exhaust fan 704. Along the direction from the air inlet to the air outlet, the purifier body is sequentially provided with a coarse particle adsorption plate 701, a fine particle heating purification plate 702 and a filter cotton 703. The coarse particle adsorption plate 701 can filter the smoke, the fine particle heating purification plate 702 can contact with the particles in the smoke and heat them to burn them, and the filter cotton 703 can filter the smoke. The smoke generated during the operation first enters the coarse particle adsorption plate 701 for filtration through the exhaust fan 704, the temperature of the fine particle heating purification plate 702 is higher than 500°C, and the remaining fine particles are burned out through the fine particle heating purification plate 702. Finally, the gas generated passes through the filter cotton 703 at the air outlet, thereby achieving zero smoke emission. In this specific embodiment, multiple groups of coarse particle adsorption plates 701 and fine particle heating purification plates 702 are respectively arranged in the purifier body to enhance the purification effect of the operation smoke. It should also be noted that in the specific embodiment that can be realized by the present invention, the coarse particle adsorption plates 701, the fine particle heating purification plates 702 and the filter cotton 703 are all detachably connected to the inner wall of the purifier body, which is convenient for disassembly and replacement, and can also adjust the number and arrangement of each component according to different purification needs, while meeting the purification treatment needs and facilitating maintenance, and improving the flexibility and adaptability of the smoke purifier 7.

[0064] Embodiment 2

[0065] This embodiment provides a road surface micro-texture reconstruction method, using the road surface micro-texture reconstruction device of embodiment 1, including the following steps:

[0066] The traveling base 1 drives the energy supply module 4, the operation module and the environment control module to travel along the road surface, the laser generator 301 and the laser focusing transmitter 8 work, the laser beam emitted by the laser focusing transmitter 8 performs laser texture reconstruction on the road surface, and the smoke purifier 7 processes the smoke generated during the operation.

[0067] The pavement micro-texture reconstruction method of this embodiment is applicable to asphalt A1 pavements using different lithology aggregates A2 and different grading types, and is also applicable to cement pavements, and can effectively restore the pavement's anti-skid performance and anti-skid durability.

[0068] Before the laser texture reconstruction operation is performed on the road surface, the surface friction coefficient of the road surface can be measured as BPN0;

[0069] The road surface is subjected to multiple laser texture reconstruction operations. After each laser texture reconstruction operation, the surface friction coefficient of the road surface operation area is measured as BPN. n; Where n is a natural number greater than 0;

[0070] Surface friction coefficient BPN of the road working area n Stop the operation after meeting the requirements.

[0071] The pavement micro-texture reconstruction method of this embodiment can be implemented by multiple laser texture reconstruction operations. On the basis of the original pavement macro structure, a high-energy laser beam is used to reconstruct the micro-texture of the road surface aggregate A2 to improve the pavement's anti-skid performance.

[0072] It should be noted here that after the laser texture reconstruction operation, the surface friction coefficient BPN of the road surface operation area n The required standards can be adjusted and determined according to the specific road type and different operation requirements, or judged according to the change of surface friction coefficient before and after the road operation, such as when BPN n -When BPN0≥20, it is considered to meet the requirements and the operation can be stopped.

[0073] It should also be noted that after completing the first texture reconstruction operation, a three-dimensional imager can be used to collect three-dimensional point cloud data of the wheel track position. According to the changes in the three-dimensional morphology, the subsequent process parameters can be adjusted, including laser power, light protection ratio, power change interval and driving speed, to further enhance the road surface's anti-skid performance and improve the quality of operations.

[0074] In actual construction work, the road surface micro-texture reconstruction method of the present invention may include the following steps:

[0075] Step 1: record the original road aggregate type A2 and measure the surface friction coefficient BPN0 of the working area;

[0076] Step 2: Drive the road surface micro-texture reconstruction device of Example 1 to the working area through wireless remote control or mobile phone program, start the device, wait for the energy supply module 4 and the environmental control module to enter a stable state, and wait for the laser generator 301 and the laser focusing transmitter 8 to enter a ready state;

[0077] Step 3: According to the type of aggregate A2 and the size of BPN0, set the initial laser power, light shielding ratio, and power change interval on the control panel 302, and set the driving speed on the wireless remote control;

[0078] Step 4: activate the laser focusing transmitter 8 to emit light through the control panel 302, and simultaneously activate the cruise control function of the driving base 1 by wireless remote control; measure the friction coefficient BPN of the working area after each texture reconstruction operation. n ;

[0079] Step 5: According to BPN nSize, adjust the process parameters, including laser power, light shielding ratio, power change interval and driving speed, repeat step 4, BPN n Stop the operation when the size meets the requirement.

[0080] Embodiment 3

[0081] The present embodiment provides a wear-resistant texture, which is prepared by the road surface microtexture reconstruction method of embodiment 2. The wear-resistant texture includes a plurality of side-by-side stepped convex grooves, each of which includes N risers A4 and N+1 treads A3, wherein N is a natural number greater than 1, such as N=2 or 3 or 4, etc. The number of risers A4 is consistent with the number of road surface microtexture reconstruction operations, and the surface roughness of the risers A4 and the treads A3 is relatively high, which can effectively improve the anti-skid performance of the road surface.

[0082] The pavement micro-texture reconstruction device of the present invention is simple and convenient to operate. The operator sets the process parameters through the control panel 302 on the main box 3, sets the driving speed and operates the driving direction on the wireless remote control or mobile phone program, and realizes the automatic pavement micro-texture reconstruction. The driving base 1 of the present invention adopts an electric drive mode, so that the overall structure of the equipment only consumes electrical energy, without additional natural resource consumption, and saves production costs. The wear-resistant texture of the present invention is suitable for asphalt A1 pavements using different lithology aggregates A2 and different grading types, and is also suitable for cement pavements, and can effectively restore the pavement's anti-skid performance and anti-skid durability.

[0083] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A road surface micro-texture reconstruction device, characterized in that: include: A running base, wherein the running base can run on a cement or asphalt road surface; An energy supply module, wherein the energy supply module is arranged on the travel base; An operation module, the operation module comprises a frame, a laser generator and a laser focusing transmitter, the frame is connected to the travel base, the laser generator is arranged on the travel base, the laser focusing transmitter is connected to the frame, the laser generator is optically connected to the laser focusing transmitter, so that the laser generated by the laser generator is transmitted to the laser focusing transmitter, the laser generator and the laser focusing transmitter are both electrically connected to the energy supply module, and the laser beam of the laser focusing transmitter is emitted in a direction toward the working road surface, so as to reconstruct the micro texture of the road surface; An environment control module, the environment control module is arranged on the travel base, the environment control module includes a smoke purifier, the smoke purifier can process the smoke generated in the process of the laser focusing transmitter performing micro-texture reconstruction on the road surface; The frame includes a shell, a crossbeam and a connecting frame. The shell is a bottom open structure. The crossbeam is arranged in the shell. The laser focusing transmitter is connected to the crossbeam. The shell is hinged to the traveling base by means of the connecting frame. The connecting frame is a triangular frame structure. One end of the vertex of the connecting frame is connected to the shell and the crossbeam. One end of the bottom side of the connecting frame is hinged to the traveling base. One end of the bottom side of the connecting frame is hinged to the traveling base by means of a telescopic rod. Two ends of the telescopic rod are respectively hinged to the connecting frame and the traveling base. The length of the telescopic rod can be adjusted. The hinge point between the telescopic rod and the connecting frame does not coincide with the hinge point between the traveling base and the connecting frame. The smoke purifier includes a purifier body and an exhaust fan. The purifier body has an air inlet and an air outlet. The air inlet is connected to the smoke generated during road operations by the exhaust fan. Along the direction from the air inlet to the air outlet, a coarse particle adsorption plate, a fine particle heating purification plate and filter cotton are sequentially arranged in the purifier body. The coarse particle adsorption plate can filter coarse particles in the smoke, the fine particle heating purification plate can contact with fine particles in the smoke and heat them to make them burn, and the filter cotton can filter the smoke.

2. The road surface micro-texture reconstruction device according to claim 1, characterized in that: The travel base adopts an electric drive travel mode; A shock absorbing platform is arranged on the travel base, and the energy supply module is arranged on the shock absorbing platform; The width of the travel base and the shock absorbing platform does not exceed 1200mm; The travel speed range of the travel base is 1m / min~5m / min.

3. The road surface micro-texture reconstruction device according to claim 1, characterized in that: The laser focusing transmitter is connected to the crossbeam by a self-leveling frame, and the self-leveling frame can adjust the height of the laser focusing transmitter to adapt to the ups and downs of the road surface and maintain the optimal focal range of the laser; The self-leveling frame includes a frame body, a grounding wheel, a piston rod and a mounting head plate, the frame body is connected to the crossbeam, the grounding wheel is rotatably arranged at the bottom of the frame body, the piston rod is slidably connected to the frame body and an elastic element is arranged between the two, and the laser focusing transmitter is connected to the piston rod by the mounting head plate; The crossbeam is parallel to the width direction of the road surface. The number of the laser focusing emitters is multiple groups. The laser focusing emitters are arranged along the length direction of the crossbeam. The self-leveling frame corresponds to the laser focusing emitters one by one.

4. The road surface micro-texture reconstruction device according to claim 1, characterized in that: The environment control module further comprises a temperature control unit, the housing has an air supply hole, and the temperature control unit is connected to the air supply hole via a hose to deliver cold air into the housing; The shell also has a smoking hole, and the smoke purifier is connected to the smoking hole via a hose.

5. The road surface micro-texture reconstruction device according to claim 4, characterized in that: It also includes a main box, which is arranged on the travel base, has a built-in control element and a control panel, and the laser generator and the smoke purifier are both arranged in the main box and are in communication connection with the control element; The temperature control unit includes a first temperature controller and a second temperature controller. The first temperature controller is arranged on the side of the main chassis and is connected to the inner cavity of the main chassis so that the temperature inside the main chassis is lower than 30°C. The second temperature controller is arranged in the main chassis and is connected to the outer shell so that the temperature inside the outer shell is lower than 40°C. The first temperature controller and the second temperature controller are both communicatively connected to the control element.

6. A road surface micro-texture reconstruction method, characterized in that: The road surface micro-texture reconstruction device according to any one of claims 1 to 5 comprises the following steps: The traveling base drives the energy supply module, the operation module and the environmental control module to travel along the road surface, the laser generator and the laser focusing emitter work, the laser beam emitted by the laser focusing emitter performs laser texture reconstruction on the road surface, and the smoke purifier processes the smoke generated during the operation.

7. The road surface micro-texture reconstruction method according to claim 6, characterized in that: Before the laser texturing operation on the road surface, the surface friction coefficient of the road surface was measured to be BPN0; The road surface is subjected to multiple laser texture reconstruction operations. After each laser texture reconstruction operation, the surface friction coefficient of the road surface operation area is measured as BPN. n ; Where n is a natural number greater than 0; Surface friction coefficient BPN of the road working area n Stop the operation after meeting the requirements.

8. A wear-resistant texture, characterized in that: The wear-resistant texture is prepared by the road surface microtexture reconstruction method according to claim 6 or 7, wherein the wear-resistant texture includes a plurality of side-by-side stepped convex grooves, each of the stepped convex grooves includes N risers and N+1 treads, wherein N is a natural number greater than 1.

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