A device and method for repairing the skid resistance of an aged asphalt pavement

Abstract

The application discloses an anti-skid performance repairing device and method for aged asphalt pavement, which comprises a frame fixedly connected with an external driving device, an adjusting mechanism fixedly connected in the frame, a gouging mechanism rotatably connected on the adjusting mechanism and in contact with the asphalt pavement, a plurality of adjusting blocks arranged in the frame, a guide assembly and an adjusting assembly arranged between the adjusting blocks, the two ends of the guide assembly and the adjusting assembly being fixedly installed in the frame, the gouging mechanism being fixedly installed on the side wall of the adjusting block, a connecting rod rotatably connected at the top end of the adjusting block, adjacent connecting rods being rotatably connected in a head-tail mode, and the connecting rod at any edge being rotatably connected with the frame. The application can adjust the width between the plurality of gouging mechanisms according to the different gouging groove widths required by different construction sections, so as to reserve different installation spaces, thereby facilitating the use of alloy roller gouging mechanisms of different sizes and improving the adaptability of the device.

Description

Technical Field

[0001] This invention belongs to the field of highway construction technology, and in particular relates to a device and method for repairing the skid resistance of aged asphalt pavement. Background Technology

[0002] The skid resistance of asphalt pavement is a crucial indicator of driving safety. A decrease in skid resistance leads to reduced friction between the vehicle and the road surface, resulting in poor grip and increasing the risk of traffic accidents. As the service life of asphalt pavement inevitably declines over time, it is essential to restore its skid resistance periodically.

[0003] Chipping and milling machines are commonly used for road surface anti-skid restoration. They are characterized by simple construction process, low operating cost, fast construction speed, and no damage to the road surface. In order to improve the efficiency of road construction, traditional chiseling and milling machines usually use multiple chiseling discs. However, the spacing between these discs is not adjustable, meaning that the size between two adjacent discs cannot be changed. Therefore, it is not possible to replace them with larger discs. Different construction sections require different widths of chiseling grooves, necessitating the use of discs of different sizes or in different numbers. As a result, existing chiseling and milling machines have poor adaptability in actual use.

[0004] Therefore, there is an urgent need to design a device and method for repairing the skid resistance of aged asphalt pavements to solve the above-mentioned technical problems. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention proposes a device and method for repairing the skid resistance of aged asphalt pavements.

[0006] To achieve the above objectives, the present invention provides a device for repairing the anti-skid performance of aged asphalt pavement, comprising a frame fixedly connected to an external drive device, an adjustment mechanism fixedly connected inside the frame, a chiseling mechanism rotatably connected to the adjustment mechanism, and the chiseling mechanism contacting the asphalt pavement.

[0007] The adjustment mechanism includes a plurality of adjustment blocks disposed within the frame, and a guide component and an adjustment component are respectively disposed between the plurality of adjustment blocks. The two ends of the guide component and the adjustment component are respectively fixedly installed within the frame; the roughening mechanism is fixedly installed on the side wall of the adjustment block.

[0008] The adjustment assembly includes an adjustment rod rotatably connected within the frame, the adjustment rod being threadedly connected to an adjustment block near one end of the inner wall of the frame, and the adjustment rod being slidably connected to several other adjustment blocks;

[0009] The top of the adjusting block is rotatably connected to a connecting rod, and adjacent connecting rods are rotatably connected end to end. The connecting rod at any edge is rotatably connected to the frame.

[0010] Preferably, an adjusting motor is fixedly installed within the frame, and the output end of the adjusting motor is connected to the adjusting rod in a transmission manner; an adjusting hole is provided through the adjusting block, and a threaded sleeve is fixedly connected to the adjusting hole, which is threadedly connected to the adjusting rod, and the threaded sleeve is sleeved on the adjusting rod and threadedly connected to the adjusting rod; a movable sleeve is fixedly installed in another adjusting hole, and the movable sleeve is sleeved on the adjusting rod and slidably connected to the adjusting rod.

[0011] Preferably, the guiding assembly includes a guide rod fixed within the frame, the guide rod being arranged parallel to the adjusting rod; the adjusting block has a through-hole corresponding to the guide rod, and the guide rod is slidably connected to the guide hole.

[0012] Preferably, the chiseling mechanism includes a mounting block fixedly connected to the side wall of the adjusting block, a drive rod rotatably connected inside the mounting block, the top end of the drive rod extending out of the mounting block and being drivenly connected to a drive assembly, the drive assembly being fixedly installed within the frame; the bottom end of the drive rod extending out of the mounting block and being fixedly connected to an electric telescopic rod, the bottom end of the electric telescopic rod being drivenly connected to the chiseling assembly.

[0013] Preferably, the drive assembly includes a drive motor and a transmission wheel fixedly mounted on the top of the inner cavity of the frame, the drive motor and the transmission wheel being located on both sides of the plurality of mounting blocks respectively; a drive wheel is drivenly connected to the output shaft of the drive motor, and a transmission belt is drivenly connected between the drive wheel and the transmission wheel; a driven wheel is fixedly connected to the top of the drive rod, and the plurality of driven wheels are drivenly connected to the transmission belt respectively; a tensioning assembly is fixedly mounted inside the frame, and the tensioning assembly is drivenly connected to the drive mechanism.

[0014] Preferably, the tensioning assembly includes a tensioning box fixedly installed at the top of the frame. A guide rail is fixedly connected to the top of the inner cavity of the tensioning box. Two symmetrically arranged tensioning rods are slidably connected in the guide rail. The bottom end of each tensioning rod extends out of the tensioning box and is rotatably connected to a tensioning wheel. The two tensioning wheels are respectively located on the outer side wall of the transmission belt and roll in contact with the outer side wall of the transmission belt.

[0015] Preferably, a tensioning telescopic rod is fixedly connected between the side wall of the tensioning rod and the inner cavity of the tensioning box. A tensioning spring is sleeved on the tensioning telescopic rod, and the two ends of the tensioning spring are fixedly connected to the tensioning box and the tensioning rod, respectively. The two tensioning telescopic rods are symmetrically arranged. A plurality of corresponding positioning rods are fixedly connected between the opposite surfaces of the two tensioning telescopic rods. The two corresponding positioning rods extend into the positioning cylinder and are slidably connected to the positioning cylinder.

[0016] Preferably, a fan is fixedly installed at the top of the frame, the air inlet of the fan is connected to the inner cavity of the frame, the air outlet of the fan is fixedly connected to and connected to an air outlet pipe, and the air outlet pipe is connected to the inner cavity of a collection box fixedly installed on the frame.

[0017] Preferably, a dust collection drawer is detachably connected inside the collection box, and the dust collection drawer is configured to correspond to the outlet of the air outlet pipe; a plurality of air outlet holes are provided through the bottom of the side wall of the collection box, and the air outlet holes are located below the dust collection drawer.

[0018] A method for repairing the skid resistance of aged asphalt pavement includes the following steps:

[0019] S1. Preparation phase: Check the equipment for proper functioning, then connect the frame to the external drive unit and transport it to the construction site.

[0020] S2. Adjust the spacing of the chiseling mechanism; Select and adjust the appropriate spacing of the chiseling mechanism by adjusting the components, and replace the corresponding parts;

[0021] S3. Adjust the chiseling pressure; adjust the height of the chiseling mechanism to select the appropriate chiseling pressure;

[0022] S4. Perform roughening; start the roughening mechanism, and at the same time, the external drive device drives the frame forward, so that the roughening mechanism contacts the asphalt pavement and restores its anti-skid properties.

[0023] S5. Recycling equipment: After the target road section has been roughened to restore the anti-skid properties of the asphalt pavement, stop the operation of the external drive device and the roughening mechanism, and carry out maintenance before continuing to work or storing the equipment.

[0024] Compared with the prior art, the present invention has the following advantages and technical effects: When the asphalt anti-skid repair device disclosed in the present invention is used, the spacing of several chiseling mechanisms installed on the adjusting mechanism can be adjusted by the adjusting mechanism, so that the chiseling spacing is easy to adjust and suitable for different occasions; the adjusting component adjusts the spacing between the adjusting blocks, and the guiding component limits the adjusting blocks, so that the distance of the chiseling mechanisms installed on the adjusting blocks is adjusted; the adjusting rod is threadedly connected to an adjusting block for adjustment. Similarly, the connecting rod hinged on the adjusting block is hinged at the first and second ends, so that adjacent adjusting blocks are linked together, and the connecting rod is interlocked to control the distance adjustment of the adjusting blocks.

[0025] This invention allows for the adjustment of the width between multiple chiseling mechanisms according to the different chiseling groove widths required for different construction sections, thereby reserving different installation spaces and facilitating the use of alloy roller chiseling mechanisms of different sizes, thus improving the adaptability of the device. Attached Figure Description

[0026] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0027] Figure 1 This is an axial view of the device for repairing the skid resistance of aged asphalt pavement according to the present invention;

[0028] Figure 2 This is an axial view of the internal structure of the anti-skid performance repair device for aged asphalt pavement according to the present invention;

[0029] Figure 3 This is a schematic diagram of the tensioning component structure of the present invention;

[0030] Figure 4 This is a schematic diagram of the collection box structure of the present invention;

[0031] Figure 5 This is a top view of the adjusting block of the present invention;

[0032] Figure 6 This is an axial view of the chiseling component of the present invention;

[0033] Figure 7 This is a schematic diagram of the chiseling assembly in Embodiment 2 of the present invention;

[0034] Figure 8 For the present invention Figure 7 A magnified view of part A in the image;

[0035] In the diagram: 1. Frame; 2. Adjusting block; 3. Adjusting rod; 4. Connecting rod; 5. Connecting plate; 6. Adjusting motor; 7. Adjusting hole; 8. Threaded sleeve; 9. Movable sleeve; 10. Guide rod; 11. Guide hole; 12. Mounting block; 13. Drive rod; 14. Electric telescopic rod; 15. Drive motor; 16. Transmission wheel; 17. Transmission belt; 18. Driven wheel; 19. Tensioning box; 20. Guide rail; 21. Tensioning rod; 22. Tensioning wheel; 23. Tensioning telescopic rod; 24. Tensioning spring; 25. Positioning rod; 6. Positioning cylinder; 27. Fan; 28. Air outlet duct; 29. ​​Collection box; 30. Dust collection drawer; 31. Air outlet; 32. Fixing rod; 33. Mounting plate; 34. Chisel plate; 35. Mounting base; 36. Blade; 37. Guide plate; 38. Fixed telescopic rod; 39. Fixing plate; 40. Wavy edge; 41. Transmission hole; 42. Movable cavity; 43. Movable spring; 44. Movable plate; 45. Transmission rod; 46. Contact rod; 47. Baffle; 48. First mounting base; 49. Second mounting base; 50. Traveling wheel. Detailed Implementation

[0036] 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.

[0037] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0038] Example 1

[0039] Reference Figures 1-6 As shown, this embodiment provides a device for repairing the anti-skid performance of aged asphalt pavement, including a frame 1 fixedly connected to an external drive device, an adjustment mechanism fixedly connected inside the frame 1, a chiseling mechanism rotatably connected to the adjustment mechanism, and the chiseling mechanism contacting the asphalt pavement.

[0040] The adjustment mechanism includes several adjustment blocks 2 disposed within the frame 1, with guide components and adjustment components respectively disposed between the adjustment blocks 2, and the two ends of the guide components and adjustment components respectively fixedly installed within the frame 1; the roughening mechanism is fixedly installed on the side wall of the adjustment blocks 2.

[0041] The adjustment assembly includes an adjustment rod 3 rotatably connected within the frame 1, the adjustment rod 3 being threadedly connected to an adjustment block 2 near the inner wall of the frame 1, and the adjustment rod 3 being slidably connected to several other adjustment blocks 2.

[0042] The top of the adjusting block 2 is rotatably connected to a connecting rod 4, and adjacent connecting rods 4 are rotatably connected end to end. The connecting rod 4 at any edge is rotatably connected to the frame 1.

[0043] The asphalt anti-skid repair device disclosed in this invention allows for the adjustment of the spacing between several chiseling mechanisms installed on the adjustment mechanism during use, making the chiseling spacing easy to adjust and suitable for different occasions. The adjustment component adjusts the spacing between the adjustment blocks 2, and the guide component limits the adjustment blocks 2, thus adjusting the distance between the chiseling mechanisms installed on the adjustment blocks 2. Similarly, the adjustment rod 3 is threadedly connected to an adjustment block 2 for adjustment. The connecting rod hinged on the adjustment block 2 is hinged at the first end, so that adjacent adjustment blocks 2 are linked together. At the same time, the connecting rod 4 is interlocked to control the distance adjustment of the adjustment blocks 2.

[0044] Further optimizing the design, an adjusting motor 6 is fixedly installed inside frame 1, and the output end of the adjusting motor 6 is connected to the adjusting rod 3 for transmission. An adjusting hole 7 is formed through the adjusting block 2, and a threaded sleeve 8 is fixedly connected inside the adjusting hole 7, which is threadedly connected to the adjusting rod 3. The threaded sleeve 8 is fitted onto the adjusting rod 3 and threadedly connected to it. A movable sleeve 9 is fixedly installed inside another adjusting hole 7, which is fitted onto the adjusting rod 3 and slidably connected to it. The adjusting motor 6 drives one adjusting block 2 through the threaded sleeve 8, while the movable sleeve 9 is movably connected to the adjusting rod 3, guiding the adjusting block 2 in conjunction with the guiding assembly.

[0045] A further optimized design includes a guide rod 10 fixed within the frame 1, which is parallel to the adjusting rod 3. A guide hole 11, corresponding to the guide rod 10, is provided through the adjusting block 2, and the guide rod 10 is slidably connected to the guide hole 11. The guide rod 10 and the guide hole 11 are used to guide the adjusting block 2.

[0046] Furthermore, both ends of the guide rod 10 are fixed to the frame 1 via the first mounting base 48, and the end of the adjusting rod 3 away from the adjusting motor 6 is rotatably connected to the frame 1 via the second mounting base 49.

[0047] The design is further optimized. The roughening mechanism includes a mounting block 12 fixedly connected to the side wall of the adjusting block 2. A drive rod 13 is rotatably connected inside the mounting block 12. The top end of the drive rod 13 extends out of the mounting block 12 and is connected to a drive assembly, which is fixedly installed inside the frame 1. The bottom end of the drive rod 13 extends out of the mounting block 12 and is fixedly connected to an electric telescopic rod 14. The bottom end of the electric telescopic rod 14 is connected to the roughening assembly. The drive assembly drives the drive rod 13, which is rotatably connected to the mounting block 12, to rotate. In turn, the electric telescopic rod 14 drives the roughening assembly to rotate, thereby roughening the asphalt pavement.

[0048] Furthermore, the shaving assembly includes a mounting plate 33 fixedly attached to the bottom end of the electric telescopic pole 14. A shaving disc 34 is fixedly mounted on the bottom end of the mounting plate 33. Several mounting seats 35 are fixedly mounted circumferentially on the bottom end of the shaving disc 34. A circular blade 36 is rotatably connected to the mounting seat 35. The blade 36 contacts the asphalt pavement.

[0049] A further optimized design includes a drive assembly comprising a drive motor 15 and a transmission wheel 16 fixedly mounted at the top of the inner cavity of the frame 1. The drive motor 15 and the transmission wheel 16 are located on opposite sides of several mounting blocks 12. A drive wheel is driven to the output shaft of the drive motor 15, and a transmission belt 17 is driven between the drive wheel and the transmission wheel 16. A driven wheel 18 is fixedly attached to the top of the drive rod 13, and several driven wheels 18 are driven to the transmission belt 17. A tensioning assembly is fixedly mounted inside the frame 1, and the tensioning assembly is driven to the transmission belt 17. The drive motor 15 drives the transmission belt 17 to rotate between the drive wheel and the transmission wheel 16, which in turn drives the driven wheel 18 to rotate, and in turn drives the drive rod 13 to rotate. The tensioning assembly is used to tension the transmission belt 17 to prevent it from loosening when adjusting the distance between the mounting blocks 12.

[0050] Further optimizing the design, the tensioning assembly includes a tensioning box 19 fixedly installed at the top of the frame 1. A guide rail 20 is fixedly connected to the top of the inner cavity of the tensioning box 19. Two symmetrically arranged tensioning rods 21 are slidably connected inside the guide rail 20. The bottom end of the tensioning rod 21 extends out of the tensioning box 19 and is rotatably connected to a tensioning wheel 22. The two tensioning wheels 22 are located on the outer side wall of the transmission belt 17 and roll in contact with the outer wall of the transmission belt 17. A tensioning telescopic rod 23 is fixedly connected between the side wall of the tensioning rod 21 and the inner cavity of the tensioning box 19. A tensioning spring 24 is sleeved on the tensioning telescopic rod 23. The two ends of the tensioning spring 24 are fixedly connected to the tensioning box 19 and the tensioning rod 21, respectively. The two tensioning telescopic rods 23 are symmetrically arranged. Several correspondingly arranged positioning rods 25 are fixedly connected between the opposite surfaces of the two tensioning telescopic rods 23. The two correspondingly arranged positioning rods 25 extend into the positioning cylinder 26 and are slidably connected to the positioning cylinder 26. The tensioning telescopic rod 23 and the tensioning spring 24 drive the tensioning rod 21 to tension the transmission belt 17, and the two tensioning wheels 22 squeeze the transmission belt 17 towards the middle; the positioning rod 25 is slidably connected in the positioning cylinder 26, which improves the stability of the tensioning rod 21.

[0051] Furthermore, a fixing rod 32 is fixedly connected between several positioning cylinders 26, and the top end of the fixing rod 32 is fixedly connected to the tensioning box 19, making the positioning cylinders 26 more stable.

[0052] Furthermore, two parallel guide plates 37 are fixedly connected inside the tensioning box 19. The two guide plates 37 clamp the tensioning rod 21 in the middle and guide the tensioning rod 21.

[0053] In a further optimized design, a fan 27 is fixedly installed at the top of frame 1. The air inlet of fan 27 is connected to the inner cavity of frame 1, and the air outlet of fan 27 is fixedly connected to and connected to an air outlet pipe 28. The air outlet pipe 28 is connected to the inner cavity of a collection box 29 fixedly installed on frame 1. The inlet of fan 27 extends into frame 1 to collect flying dust during the roughening process, preventing dust from spreading and causing environmental pollution. The dust is collected into collection box 29 through air outlet pipe 28.

[0054] In a further optimized design, a dust collection drawer 30 is detachably connected inside the collection box 29, and the dust collection drawer 30 is positioned corresponding to the outlet of the air outlet 28. Several air outlet holes 31 are provided through the bottom of the side wall of the collection box 29, located below the dust collection drawer 30. The collected dust-laden air passes through the dust collection drawer 30, where the dust is collected, and the air is discharged through the air outlet holes 31 at the bottom of the collection box 29. The dust collection drawer 30 can be removed from the collection box 29 for easy dust removal.

[0055] Furthermore, baffles 47 are fixed to the front and rear ends of the frame 1 respectively, so that a relatively closed frame 1 is formed inside the frame 1, which facilitates the collection of dust.

[0056] Furthermore, a walking wheel 50 is fixedly installed at the bottom of the frame 1 for easy movement.

[0057] A method for repairing the skid resistance of aged asphalt pavement includes the following steps:

[0058] S1. Preparation stage: Check the normal function of the equipment, then connect frame 1 to the external drive device and transport it to the construction location; the external drive device can be a tractor or an electric motor, which can drive frame 1 to move, which is convenient and labor-saving; at the same time, a hydraulic cylinder can be used to lift frame 1; at the same time, the external drive device can be equipped with a control panel for controlling the adjustment components and the chiseling mechanism.

[0059] S2. Adjust the spacing of the chiseling mechanism; select and adjust the appropriate spacing of the chiseling mechanism through the adjustment component, and replace the corresponding parts; according to the chiseling requirements, start the adjustment motor 6, so that the adjustment block 2 threadedly connected to the adjustment rod 3 moves, and then drive the other adjustment blocks 2 to adjust synchronously through the linkage rod; after the adjustment is in place, a suitable chiseling disc 34 is installed at the bottom of the mounting disc 33.

[0060] S3. Adjust the chiseling pressure; adjust the height of the chiseling mechanism to select the appropriate chiseling pressure; adjust the height of the chiseling disc 34 through the electric telescopic rod 14 so that the blade 36 contacts the asphalt pavement, and detect the force on the blade 36 to control the chiseling depth.

[0061] S4. Roughening: Start the roughening mechanism, and at the same time, the external drive device drives the frame 1 forward, so that the roughening mechanism contacts the asphalt pavement and restores its anti-skid properties; start the drive motor 15, and finally drive the roughening disc 34 to rotate, so that the blade 36 slices across the asphalt pavement. At the same time, the external drive device drives the frame 1 forward, and the fan 27 is started to collect dust, thus roughening the asphalt pavement.

[0062] S5. Recycling equipment: After the target road section has been roughened to restore the anti-skid properties of the asphalt pavement, stop the operation of the external drive device and the roughening mechanism, and carry out maintenance before continuing to work or storing it; After the asphalt pavement is roughened, raise frame 1, then raise the roughening disc 34, move it to another construction position, and carry out maintenance before continuing to work or storing it.

[0063] In a specific example, after estimation and calculation, if the texture depth of the aged asphalt pavement before use of this device is 0.55mm and the pendulum value is 55, then the simulation calculation shows that after the anti-skid repair by the device of this invention, its texture depth is increased to 0.81mm and the pendulum value is 59. The roughness of the pavement is greatly improved. The higher the roughness of the pavement surface, the larger the pendulum value and the better the anti-skid performance. The improvement of both indicators shows that the anti-skid performance repair effect of this invention is good.

[0064] Example 2

[0065] Reference Figures 7-8 As shown, the only difference between this embodiment and embodiment 1 is that the chiseling disc in this embodiment has a lifting and vibrating function, which improves the chiseling effect.

[0066] The bottom end of the mounting block 12 is fixedly connected to several fixed telescopic rods 38 that surround the electric telescopic rod 14. The bottom end of the fixed telescopic rod 38 is fixedly connected to a fixed plate 39. The fixed plate 39 is rotatably sleeved on the bottom end of the output end of the electric telescopic rod 14. The fixed plate 39 is located above the mounting plate 33.

[0067] The bottom end of the electric telescopic rod 14 is provided with a transmission hole 41, and a movable cavity 42 is provided inside the transmission hole 41. A transmission plate rod is slidably connected inside the transmission hole 41. The top end of the transmission rod 45 extends into the movable cavity 42 and is fixedly connected to a movable plate 44. A movable spring 43 is fixedly connected between the bottom end of the movable plate 44 and the movable cavity 42. The bottom end of the transmission rod 45 extends out of the transmission hole 41 and is fixedly connected to the top end of the mounting plate 33.

[0068] The bottom end of the fixed plate 39 is fixedly connected to a wavy edge 40 that surrounds the output end of the fixed telescopic rod 38. Several contact rods 46 are fixedly connected to the outer wall of the transmission rod 45. The contact rods 46 slide in contact with the wavy edge 40. When the electric telescopic rod 14 rotates, the contact between the contact rods 46 and the wavy edge 40, along with the action of the movable spring 43, causes the mounting plate 33 to rise and fall periodically, so that the chiseling plate 34 rises and falls up and down when it rotates, thereby improving the chiseling effect.

[0069] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0070] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A device for repairing the skid resistance of aged asphalt pavement, characterized in that: Includes a frame (1) fixed to an external drive device, an adjustment mechanism fixed inside the frame (1), a chiseling mechanism rotatably connected to the adjustment mechanism, and the chiseling mechanism in contact with the asphalt pavement. The adjustment mechanism includes a plurality of adjustment blocks (2) disposed within the frame (1), and a guide component and an adjustment component are respectively disposed between the plurality of adjustment blocks (2). The two ends of the guide component and the adjustment component are respectively fixedly installed within the frame (1); the chiseling mechanism is fixedly installed on the side wall of the adjustment block (2). The adjustment assembly includes an adjustment rod (3) rotatably connected within the frame (1), the adjustment rod (3) being threadedly connected to an adjustment block (2) near one end of the inner wall of the frame (1), and the adjustment rod (3) being slidably connected to several other adjustment blocks (2). The top of the adjusting block (2) is rotatably connected to a connecting rod (4), and adjacent connecting rods (4) are rotatably connected end to end. The connecting rod (4) at any edge is rotatably connected to the frame (1). The chiseling mechanism includes a mounting block (12) fixed to the side wall of the adjusting block (2), a drive rod (13) rotatably connected inside the mounting block (12), the top end of the drive rod (13) extending out of the mounting block (12) and being connected to the drive assembly, the drive assembly being fixedly installed inside the frame (1); the bottom end of the drive rod (13) extending out of the mounting block (12) and being fixed to an electric telescopic rod (14), the bottom end of the electric telescopic rod (14) being connected to the chiseling assembly. The drive assembly includes a drive motor (15) and a transmission wheel (16) fixedly installed at the top of the inner cavity of the frame (1). A drive wheel is driven to the output shaft of the drive motor (15), and a transmission belt (17) is driven to the drive wheel (16). A tensioning assembly is fixedly installed inside the frame (1), and the tensioning assembly is driven to the transmission belt (17). The tensioning assembly includes a tensioning box (19) fixedly installed at the top of the frame (1). A guide rail (20) is fixedly connected to the top of the inner cavity of the tensioning box (19). Two symmetrically arranged tensioning rods (21) are slidably connected in the guide rail (20). The bottom end of the tensioning rod (21) extends out of the tensioning box (19) and is rotatably connected to a tensioning wheel (22). The two tensioning wheels (22) are located on the outer side wall of the transmission belt (17) and roll in contact with the outer side wall of the transmission belt (17). A tensioning telescopic rod (23) is fixedly connected between the side wall of the tensioning rod (21) and the inner cavity of the tensioning box (19). A tensioning spring (24) is sleeved on the tensioning telescopic rod (23). The two ends of the tensioning spring (24) are fixedly connected to the tensioning box (19) and the tensioning rod (21) respectively. The two tensioning telescopic rods (23) are symmetrically arranged. A plurality of corresponding positioning rods (25) are fixedly connected between the opposite surfaces of the two tensioning telescopic rods (23). The two corresponding positioning rods (25) extend into the positioning cylinder (26) and slide in connection with the positioning cylinder (26). The bottom end of the mounting block (12) is fixed with several fixed telescopic rods (38) surrounding the electric telescopic rod (14). The bottom end of the fixed telescopic rod (38) is fixed with a fixed plate (39). The bottom end of the fixed plate (39) is fixed with a wavy edge (40) surrounding the output end of the fixed telescopic rod (38).

2. The device for repairing the skid resistance of aged asphalt pavement according to claim 1, characterized in that: An adjusting motor (6) is fixedly installed inside the frame (1), and the output end of the adjusting motor (6) is connected to the adjusting rod (3) in a transmission connection. An adjusting hole (7) is provided through the adjusting block (2), and a threaded sleeve (8) is fixedly connected inside the adjusting hole (7) which is threadedly connected to the adjusting rod (3). The threaded sleeve (8) is sleeved on the adjusting rod (3) and threadedly connected to the adjusting rod (3). A movable sleeve (9) is fixedly installed inside another adjusting hole (7), and the movable sleeve (9) is sleeved on the adjusting rod (3) and slidably connected to the adjusting rod (3).

3. The device for repairing the skid resistance of aged asphalt pavement according to claim 1, characterized in that: The guiding assembly includes a guide rod (10) fixed in the frame (1), the guide rod (10) being arranged parallel to the adjusting rod (3); the adjusting block (2) is provided with a guide hole (11) corresponding to the guide rod (10), and the guide rod (10) is slidably connected to the guide hole (11).

4. The device for repairing the skid resistance of aged asphalt pavement according to claim 1, characterized in that: The drive motor (15) and the transmission wheel (16) are located on both sides of the mounting blocks (12); the top end of the drive rod (13) is fixed with a driven wheel (18), and the driven wheels (18) are respectively connected to the transmission belt (17).

5. The device for repairing the skid resistance of aged asphalt pavement according to claim 1, characterized in that: A fan (27) is fixedly installed at the top of the frame (1). The air inlet of the fan (27) is connected to the inner cavity of the frame (1). The air outlet of the fan (27) is fixedly connected to and connected to an air outlet pipe (28). The air outlet pipe (28) is connected to the inner cavity of a collection box (29) fixedly installed on the frame (1).

6. The device for repairing the skid resistance of aged asphalt pavement according to claim 5, characterized in that: The collection box (29) is detachably connected to a dust collection drawer (30), which is correspondingly set to the outlet of the air outlet pipe (28); a number of air outlet holes (31) are opened through the bottom of the side wall of the collection box (29), and the air outlet holes (31) are located below the dust collection drawer (30).

7. A method for repairing the skid resistance of aged asphalt pavement, comprising the skid resistance repair device for aged asphalt pavement according to any one of claims 1-6, characterized in that... Includes the following steps: S1, Preparation stage; check the normal function of the equipment, then connect the frame (1) to the external drive unit and transport it to the construction site; S2. Adjust the spacing of the chiseling mechanism; Select and adjust the appropriate spacing of the chiseling mechanism by adjusting the components, and replace the corresponding parts; S3. Adjust the chiseling pressure; adjust the height of the chiseling mechanism to select the appropriate chiseling pressure; S4. Perform roughening; start the roughening mechanism, and at the same time, the external drive device drives the frame (1) forward, so that the roughening mechanism contacts the asphalt pavement and restores its anti-skid properties. S5, recycling equipment; Once the target road section has been roughened to restore the anti-skid properties of the asphalt pavement, the operation of the external drive device and the roughening mechanism should be stopped, and the road should be inspected before continuing to work or being stored away.

Images