Road surface repairing device and repairing method for road maintenance

Abstract

The invention belongs to the technical field of road surface repairing, and particularly relates to a road surface repairing device for road maintenance and a repairing method.The road surface repairing device comprises a rack, and a joint cutting mechanism, a crushing mechanism, a cleaning mechanism and a filling mechanism which are sequentially arranged on the rack; the rack comprises a base station, supporting legs and walking wheels, the supporting legs are arranged at the four corners of the base station respectively, and the walking wheels are rotationally installed below the supporting legs; and the joint cutting mechanism comprises a first supporting plate, a first power source and a saw disc, the first supporting plate is movably connected with the base table through a first lifting assembly, a shell in the first power source is fixedly connected with the first supporting plate, and an output shaft penetrates through the first supporting plate and then is in driving connection with the saw disc.

Description

Technical Field

[0001] This invention relates to the field of road surface repair technology, specifically to a road surface repair device and repair method for highway maintenance. Background Technology

[0002] With rapid economic development, the number of vehicles has increased dramatically, and the proportion of heavy-duty vehicles has continued to rise, putting enormous pressure on highway surfaces. The rapid increase in traffic flow is one of the main reasons, causing continuous load impacts on the road structure, leading to damage such as cracks and potholes. Once severe cracks, potholes, or subsidence occur, simple overlay maintenance is usually insufficient, requiring resurfacing. Road resurfacing is a maintenance project that repairs damaged road surfaces using techniques such as crushing, excavation, or loosening, aiming to restore the road's structural strength and performance. Summary of the Invention

[0003] The present invention addresses the problems mentioned above by designing a road surface repair device and method for highway maintenance, which uses a process of cutting, breaking, cleaning and filling to repair damaged areas of the road surface.

[0004] To achieve the above objectives, the present invention provides a road surface repair device for highway maintenance, comprising a frame, and a cutting mechanism, a crushing mechanism, a cleaning mechanism, and a filling mechanism sequentially arranged on the frame; the frame includes a base, outriggers, and wheels, with multiple sets of outriggers respectively arranged at the four corners of the base, and the wheels rotatably mounted below the outriggers; the cutting mechanism includes a first support plate, a first power source, and a saw disc, the first support plate being movably connected to the base via a first lifting assembly, the first power source having a housing fixedly connected to the first support plate, and an output shaft passing through the first support plate and driving the saw disc.

[0005] Furthermore, the cutting mechanism also includes a cutter head cover and a water cooling assembly. The cutter head cover is located on top of the saw disc and is fixedly connected to the support plate. The water cooling assembly includes a water tank and a water pump disposed above the base, as well as a dust removal nozzle clamped on one side of the cutter head cover. The water pump has an inlet connected to the water tank and an outlet connected to the dust removal nozzle via a flexible water pipe. The outlet of the dust removal nozzle faces the saw disc.

[0006] Furthermore, an installation plate is fitted on the outer wall of the dust removal nozzle, and a U-shaped clamp is fixedly connected to the installation plate. The U-shaped clamp has a threaded hole, and a hand screw is screwed into the threaded hole. The hand screw sequentially presses the cutter head cover and the U-shaped clamp.

[0007] Furthermore, the crushing mechanism includes a second support plate, a second power source, and a drill disc. The second support plate is movably connected to the base via a second lifting assembly. The outer shell of the second power source is fixedly connected to the second support plate, and its output shaft is driven to connect to the drill disc. Multiple sets of crushing cones are fixedly arranged on the surface of the drill disc.

[0008] Furthermore, the base is fixedly connected to a guide plate, the guide plate is laid with double guide rails, and the extension direction of the guide rails is parallel to the transmission direction of the second lifting component. The second support plate is slidably engaged with the guide rails through a slider group.

[0009] Furthermore, the cleaning mechanism includes a negative pressure fan and a waste bin disposed above the base, and a cleaning pipe assembly disposed below the base. The air outlet of the negative pressure fan is sequentially connected to the waste bin and the cleaning pipe assembly. The cleaning pipe assembly includes a flexible corrugated pipe, a rigid pipe, and a feed pipe. The corrugated pipe passes through the base and connects to the waste bin. The two ends of the rigid pipe are respectively connected to the corrugated pipe and the feed pipe. The rigid pipe is fixedly connected to a support plate three, and the support plate three is movably connected to the base through a third lifting assembly.

[0010] Furthermore, the filling mechanism includes a filling assembly, a compaction assembly, and an intermediate transmission assembly. A protective plate is fixedly connected to the base, the protective plate spacing the filling assembly and the compaction assembly, and the protective plate has a transverse through hole for the intermediate transmission assembly to slide with. The intermediate transmission assembly includes a support plate four, a power source three, a shaped cam, and a follower. The support plate four is fixedly disposed below the base, the housing of the power source three is fixedly connected to the support plate four, and the output shaft drives the shaped cam. The follower includes a driven roller, a vertical linear rod, and a transverse linear rod. The support plate four is provided with a limiting part, the limiting part having a transverse sliding groove, the transverse linear rod sliding with the transverse sliding groove, and a limiting block is fixedly connected to one end of the transverse linear rod. The limiting block has a vertical sliding groove, the vertical linear rod sliding with the vertical sliding groove, the driven roller rotatably connects to the vertical linear rod, and the driven roller drives the shaped cam.

[0011] Furthermore, the filling assembly includes a material cylinder disposed above the base and a discharge pipe disposed below the base. One end of the discharge pipe is connected to the material cylinder and the pipe diameter is equipped with an asphalt-specific valve. The discharge pipe is fixedly connected to the vertical linear rod by a clamp.

[0012] Furthermore, the compaction assembly includes an L-shaped support plate five, a fourth lifting assembly, a support frame, and a pressure roller. The support plate five is fixedly connected to the transverse linear rod. One end of the fourth lifting assembly is fixedly connected to the support plate five, and the other end is driven to connect to the support frame. Both ends of the pressure roller are rotatably connected to the support frame.

[0013] The present invention also includes a repair method for a road surface repair device for highway maintenance, comprising the following steps: 1) The worker pushes the frame to move the cutting mechanism above the damaged area of ​​the road surface. First, the power source one is started to drive the rotation of the saw blade. Then, the first lifting component is started to drive the lifting and reciprocating motion of the support plate one, thereby realizing the cutting of the road surface by the saw blade. 2) In step one, while the saw blade cuts a regular straight-walled groove into the damaged area of ​​the road surface, the water pump starts to pump out the cooling water in the water tank and spray it onto the saw blade, thereby cooling the saw blade. 3) After the cutting is completed, the cutting mechanism stops and resets, and the crushing mechanism carries out the crushing operation on the road surface in the cutting area; 4) After crushing is completed, the crushing mechanism stops and resets, and the cleaning mechanism carries out cleaning operations on the crushing area; 5) After cleaning is completed, the cleaning mechanism stops and resets. First, power source three is started to drive the rotation of the irregular cam, and then the filling assembly is started to fill the cleaning area with asphalt. 6) After filling is completed, the filling assembly stops. First, start the reverse rotation of power source three to drive the compaction assembly to move away from the protective plate. Then start the compaction assembly to compact the newly laid asphalt.

[0014] In summary, the present invention has the following advantages and beneficial technical effects: 1. In this invention, the kerfing mechanism uses a saw disc to kerf the road surface, cutting regular straight-walled grooves into the damaged area. A cutter disc guard protects the operator from mechanical injury, ensuring safe processing. Dust-collecting nozzles spray cooling water in real-time, following the saw disc's cutting position, achieving precise cooling, lubrication, and dust removal for the saw disc and processing area, thereby improving sawing efficiency and extending the saw disc's lifespan. A U-shaped clamp is used for quick clamping and positioning of the dust-collecting nozzles.

[0015] 2. In this invention, the crushing mechanism utilizes a drill disc to break up the road surface in the cut area. The guide plate and the cooperation between the double guide rails and the slider assembly ensure the precise descent of the crushing mechanism, thereby improving the crushing effect.

[0016] 3. In this invention, the cleaning mechanism employs a negative pressure principle to pump and store the broken particles into a waste bin. The cleaning pipe assembly utilizes the elastic deformation of a flexible corrugated pipe to adapt to the decrease in stress on the rigid pipe.

[0017] 4. The intermediate transmission component of the present invention simultaneously drives the displacement of the filling component and the compaction component. That is, when the filling component moves to the right, the compaction component moves to the right and is hidden to the side of the protective plate, reducing the contamination of the compaction component by the asphalt flowing out of the filling component; when the compaction component moves to the left, the filling component moves to the left and is hidden to the side of the protective plate, reducing the contamination of the filling component by the asphalt thrown up by the compaction component.

[0018] 5. In this invention, the asphalt-specific valve in the filler assembly controls the asphalt feeding, filling the cleaned area with asphalt. The compaction assembly uses pressure rollers to flatten the newly added asphalt. Attached Figure Description

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a front view schematic diagram of the present invention; Figure 2 This is a three-dimensional schematic diagram of the present invention; Figure 3 This is a side view of the cutting mechanism in this invention; Figure 4 This is a three-dimensional schematic diagram of the cutting mechanism in this invention; Figure 5 This is a side view of the crushing mechanism in this invention; Figure 6 This is a three-dimensional schematic diagram of the crushing mechanism in this invention; Figure 7 This is a three-dimensional schematic diagram of the cleaning mechanism in this invention; Figure 8 This is a front view schematic diagram of the filling mechanism in this invention; Figure 9 This is a schematic diagram of the transmission of the intermediate transmission component in this invention; Figure 10 This is a three-dimensional schematic diagram of the compaction component in this invention.

[0020] The reference numerals in the attached figures are: 1. Frame; 11. Base; 12. Support Legs; 13. Protective Plate; 2. Cutting Mechanism; 21. Support Plate 1; 22. Power Source 1; 23. Saw Disc; 24. First Lifting Assembly; 25. Cutter Disc Guard; 26. Water Tank; 27. Water Pump; 28. Dust Removal Nozzle; 29. ​​U-Shaped Clamp; 3. Crushing Mechanism; 31. Support Plate 2; 32. Power Source 2; 33. Drill Disc; 331. Crushing Cone; 34. Second Lifting Assembly; 35. Guide Plate; 36. Guide Rail; 4. Cleaning Mechanism; 41. Negative Pressure Fan; 42. Waste Material 43. Box; 44. Corrugated pipe; 45. Rigid pipe; 46. Feed pipe; 47. Support plate three; 48. Third lifting assembly; 59. Filling mechanism; 50. Filling assembly; 511. Material cylinder; 512. Discharge pipe; 513. Clamp; 52. Compaction assembly; 521. Support plate five; 522. Fourth lifting assembly; 523. Support frame; 524. Pressure roller; 53. Support plate four; 54. Power source three; 55. Irregular cam; 56. Driven roller; 57. Vertical linear rod; 58. Horizontal linear rod; 59. Limit block. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of the embodiments of this invention will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout; the described embodiments are some embodiments of this invention, but not all embodiments; the embodiments and directional terms described below with reference to the accompanying drawings are exemplary and intended to explain this invention, and should not be construed as limiting this invention; all other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention. The embodiments of this invention will be described in detail below with reference to the accompanying drawings: The following is in conjunction with the appendix Figures 1-10 The present invention will be further described in detail below: Example 1 like Figures 1-4As shown, this embodiment discloses a road surface repair device for highway maintenance, including a frame 1, and a cutting mechanism 2, a crushing mechanism 3, a cleaning mechanism 4, and a filling mechanism 5 sequentially arranged on the frame 1. The frame 1 includes a base 11, support legs 12, and wheels (not shown in the figure). In this embodiment, there are four support legs 12, which are respectively arranged at the four corners of the base 11. The wheels are rotatably installed under the support legs 12 by fastening screws, and the wheels are equipped with foot locks. The cutting mechanism 2 includes an L-shaped support plate 21, a power source 22, and a saw disc 23. The support plate 21 is movably connected to the base 11 through a first lifting assembly 24. The outer shell of the power source 22 is fixedly connected to the support plate 21 by fastening screws, and the output shaft passes through the vertical plate in the support plate 21 and drives the saw disc 23. In this embodiment, the power source is a servo motor, and the lifting assembly is a hydraulic cylinder.

[0022] like Figures 3-4 As shown, the cutting mechanism 2 also includes a cutter head cover 25 and a water cooling assembly. The cutter head cover 25 is located on top of the saw disc 23 and is welded and fixed to one side of the support plate 21. The water cooling assembly includes a water tank 26 and a water pump 27 disposed above the base 11, and a dust removal nozzle 28 clamped on one side of the cutter head cover 25. The inlet of the water pump 27 is connected to the water tank 26, and the outlet is connected to the dust removal nozzle 28 through a flexible water pipe. The outlet of the dust removal nozzle 28 faces the saw disc 23. A mounting plate is welded to the outer wall of the dust removal nozzle 28. The mounting plate is bent into a U-shaped clamp 29. The U-shaped clamp 29 has a threaded hole, and a hand screw is screwed into the threaded hole. When the hand screw is manually tightened, the end face of the screw presses against the outer wall of the cutter head cover 25, and at the same time, the inner wall of the cutter head cover 25 presses against the U-shaped clamp 29, thereby fixing the dust removal nozzle 28.

[0023] like Figures 5-6 As shown, the crushing mechanism 3 includes a second U-shaped support plate 31, a second power source 32, and a drill plate 33. The second support plate 31 is movably connected to the base 11 through the second lifting assembly 34. The outer shell of the second power source 32 is fixedly connected to the second support plate 31, and the output shaft passes through the horizontal plate in the second support plate 31 and drives the drill plate 33. Multiple crushing cones 331 are formed on the surface of the drill plate 33 by draft molding. A guide plate 35 is welded below the base 11. The guide plate 35 is covered with double guide rails 36, and the extension direction of the guide rails 36 is parallel to the feed direction of the piston in the second lifting assembly 34. A vertical plate in the second support plate 31 slides with the guide rails 36 through a slider group, while ensuring that the guide plate 35 does not interfere with the lifting path of the drill plate 33. A baffle is also welded below the guide plate 35.

[0024] like Figure 7As shown, the cleaning mechanism 4 includes a negative pressure fan 41 and a waste bin 42 installed above the base 11, and a cleaning pipe assembly installed below the base 11. The air outlet of the negative pressure fan 41 is sequentially connected to the waste bin 42 and the cleaning pipe assembly. The cleaning pipe assembly includes a flexible corrugated pipe 43, a rigid pipe 44, and a frustum-shaped feed pipe 45. The discharge end of the corrugated pipe 43 passes through the base 11 and connects to the waste bin 42, and the feed end connects to the discharge end of the rigid pipe 44. The feed end of the rigid pipe 44 connects to the feed pipe 45. The rigid pipe 44 is welded with a support plate 3 46, and the support plate 3 46 is movably connected to the base 11 through a third lifting assembly 47.

[0025] like Figures 8-9 As shown, the filling mechanism 5 includes a filling assembly 51, a compaction assembly 52, and an intermediate transmission assembly. A protective plate 13 is welded below the base 11, which separates the filling assembly 51 from the compaction assembly 52. ​​The protective plate 13 has a transverse through hole for sliding engagement with the transverse linear rod 58. The intermediate transmission assembly includes a support plate 4 53, a power source 3 54, a shaped cam 55, and a follower. The support plate 4 53 is welded below the base 11. The outer shell of the power source 3 54 is fixedly connected to the support plate 4 53, and the output shaft... The drive plate 53 is connected to the irregular cam 55; the driven component includes a driven roller 56, a T-shaped vertical linear rod 57 and a horizontal linear rod 58. The support plate 53 is provided with a limiting part, which has a horizontal groove for the horizontal linear rod 58 to slide horizontally. A limiting block 59 is welded to one end of the horizontal linear rod 58. The limiting block 59 has a vertical groove for the vertical linear rod 57 to slide vertically. The driven roller 56 is rotatably mounted on one side of the vertical linear rod 57. The driven roller 56 cooperates with the irregular cam 55 for transmission.

[0026] like Figures 9-10 As shown, the filling assembly 51 includes a material cylinder 511 disposed above the base 11 and a discharge pipe 512 disposed below the base 11. The discharge pipe 512 also includes a corrugated pipe 43, a rigid pipe 44, and a feed pipe 45. The structure of the discharge pipe 512 differs from that of the cleaning pipe assembly in that the corrugated pipe 43 in the discharge pipe 512 passes through the base 11 and connects to the material cylinder 511. The rigid pipe 44 is equipped with an asphalt-specific valve (not shown in the figure), and the rigid pipe 44 is fixedly connected to the vertical linear rod 57 by a clamp 513. The compaction assembly 52 includes an L-shaped support plate 521, a fourth lifting assembly 522, a support frame 523, and a pressure roller 524. The vertical plate of the support plate 521 is welded and fixed to the horizontal linear rod 58. The cylinder end of the fourth lifting assembly 522 is fixedly connected to the horizontal plate of the support plate 521, and the piston part is driven and connected to the support frame 523 through a floating joint. Both ends of the pressure roller 524 are rotatably connected to the support frame 523.

[0027] Example 2 The repair method of the road surface repair device for highway maintenance according to the present invention is as follows: Step 1: The worker pushes the frame 1 to move the cutting mechanism 2 above the damaged area of ​​the road surface. First, the power source 22 is started. The power source 22 outputs power and drives the saw disc 23 to rotate. Then, the first lifting assembly 24 is started. When the saw disc 23 approaches the road surface, the water pump 27 is turned on. At this time, the cooling water in the water tank 26 is sprayed onto the surface of the saw disc 23 by the dust removal nozzle 28 under the suction of the pump. The piston in the first lifting assembly 24 continues to drive the support plate 21 to descend until the saw disc 23 cuts to the appropriate depth. Then, the piston drives the support plate 21 to rise. When the saw disc 23 moves out of the road surface, the worker adjusts the frame 1 and uses the piston to drive the support plate 21 to descend again, cutting a regular straight-walled groove in the damaged area of ​​the road surface. Step 2: After the cutting is completed, the cutting mechanism 2 stops and resets. First, the second power source 32 is started. The second power source 32 outputs power and drives the drill plate 33 to rotate. Then, the second lifting component 34 is started. The piston drives the support plate 31 to slide down along the guide plate 35, thereby driving the drill plate 33 to rise and fall until the breaking cone 331 breaks the road surface in the cutting area. Step 3: After crushing is completed, the crushing mechanism 3 stops and resets. First, the third lifting component 47 is started. The piston drives the support plate 46 to descend, which in turn drives the rigid pipe 44 to descend until the feed pipe 45 is lowered into the pit of the damaged area. The negative pressure fan 41 is turned on to draw a vacuum in the waste box 42, and then the crushed waste is sucked into the cavity of the waste box 42 by the cleaning pipe assembly. Step 4: After cleaning is completed, the cleaning mechanism 4 stops and resets. First, the power source 3 54 is started. The power source 3 54 outputs power and drives the shaped cam 55 to rotate. The driven roller 56 descends and moves to the right along the spiral surface of the tapered cam 55. The vertical linear rod 57 follows and drives the horizontal linear rod 58 to move to the right along the horizontal slide groove until the driven roller 56 moves to the tail of the shaped cam 55. At this time, the compaction component 52 is hidden on the left side of the protective plate 13. Then, the asphalt-specific valve is opened, and the asphalt in the material cylinder 511 flows out along the discharge pipe 512 to fill the damaged area. Step 5: After filling is completed, close the asphalt-specific valve and reverse the power source 3 54. The filling assembly 51 is reset and hidden on the right side of the protective plate 13. Then, start the fourth lifting assembly 522. The piston drives the support frame 523 to descend, which in turn drives the pressure roller 524 to descend. The worker moves the frame 1, and the pressure roller 524 rotates based on the support frame 523 to compact the newly laid asphalt.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A road surface repair device for highway maintenance, characterized in that: The device includes a frame, and a cutting mechanism, a crushing mechanism, a cleaning mechanism, and a filling mechanism sequentially arranged on the frame. The frame includes a base, support legs, and wheels. Multiple sets of support legs are respectively arranged at the four corners of the base, and the wheels are rotatably mounted below the support legs. The cutting mechanism includes a support plate, a power source, and a saw disc. The support plate is movably connected to the base via a first lifting assembly. The outer casing of the power source is fixedly connected to the support plate, and the output shaft passes through the support plate and drives the saw disc.

2. The road surface repair device for highway maintenance according to claim 1, characterized in that: The cutting mechanism further includes a cutter head cover and a water cooling assembly. The cutter head cover is located on top of the saw disc and is fixedly connected to the support plate. The water cooling assembly includes a water tank and a water pump disposed above the base, as well as a dust removal nozzle clamped on one side of the cutter head cover. The water pump has an inlet connected to the water tank and an outlet connected to the dust removal nozzle via a flexible water pipe. The outlet of the dust removal nozzle faces the saw disc.

3. A road surface repair device for highway maintenance according to claim 2, characterized in that: The dust removal nozzle is fitted with an installation plate on its outer wall. A U-shaped clamp is fixedly connected to the installation plate. The U-shaped clamp has a threaded hole, and a hand screw is screwed into the threaded hole. The hand screw sequentially presses the cutter head cover and the U-shaped clamp together.

4. The road surface repair device for highway maintenance according to claim 1, characterized in that: The crushing mechanism includes a second support plate, a second power source, and a drill disc. The second support plate is movably connected to the base via a second lifting assembly. The outer shell of the second power source is fixedly connected to the second support plate, and its output shaft is driven to connect to the drill disc. Multiple sets of crushing cones are fixedly arranged on the surface of the drill disc.

5. A road surface repair device for highway maintenance according to claim 4, characterized in that: The base is fixedly connected to a guide plate, the guide plate is laid with double guide rails, and the extension direction of the guide rails is parallel to the transmission direction of the second lifting component. The second support plate is slidably engaged with the guide rails through a slider group.

6. A road surface repair device for highway maintenance according to claim 1, characterized in that: The cleaning mechanism includes a negative pressure fan and a waste bin located above the base, and a cleaning pipe assembly located below the base. The air outlet of the negative pressure fan is sequentially connected to the waste bin and the cleaning pipe assembly. The cleaning pipe assembly includes a flexible corrugated pipe, a rigid pipe, and a feed pipe. The corrugated pipe passes through the base and connects to the waste bin. The two ends of the rigid pipe are respectively connected to the corrugated pipe and the feed pipe. The rigid pipe is fixedly connected to a support plate three, and the support plate three is movably connected to the base through a third lifting assembly.

7. A road surface repair device for highway maintenance according to claim 2, characterized in that: The filling mechanism includes a filling assembly, a compaction assembly, and an intermediate transmission assembly. A protective plate is fixedly connected to the base. The protective plate is spaced between the filling assembly and the compaction assembly, and the protective plate has a transverse through hole for the intermediate transmission assembly to slide. The intermediate transmission assembly includes a support plate four, a power source three, a shaped cam, and a follower. The support plate four is fixedly installed below the base. The housing of the power source three is fixedly connected to the support plate four, and the output shaft is driven by the shaped cam. The driven component includes a driven roller, a vertical linear rod, and a horizontal linear rod. The support plate is provided with a limiting part, and the limiting part has a horizontal sliding groove. The horizontal linear rod slides in the horizontal sliding groove, and one end of the horizontal linear rod is fixedly connected to a limiting block. The limiting block has a vertical sliding groove, and the vertical linear rod slides in the vertical sliding groove. The driven roller is rotatably connected to the vertical linear rod, and the driven roller cooperates to drive the irregular cam.

8. A road surface repair device for highway maintenance according to claim 7, characterized in that: The filling assembly includes a material cylinder disposed above the base and a discharge pipe disposed below the base. One end of the discharge pipe is connected to the material cylinder and the pipe diameter is equipped with an asphalt-specific valve. The discharge pipe is fixedly connected to the vertical linear rod by a clamp.

9. A road surface repair device for highway maintenance according to claim 7, characterized in that: The compaction assembly includes an L-shaped support plate five, a fourth lifting assembly, a support frame, and a pressure roller. The support plate five is fixedly connected to the transverse linear rod. One end of the fourth lifting assembly is fixedly connected to the support plate five, and the other end is driven to connect to the support frame. Both ends of the pressure roller are rotatably connected to the support frame.

10. A repair method for a road surface repair device used in highway maintenance, characterized in that: The repair steps of the road surface repair device for highway maintenance as described in claim 7 are as follows: Step 1: The worker pushes the frame to move the cutting mechanism above the damaged area of ​​the road surface. First, the power source one is started to drive the rotation of the saw blade. Then, the first lifting component is started to drive the lifting and reciprocating motion of the support plate one, thereby realizing the cutting of the road surface by the saw blade. Step 2: In Step 1, while the saw blade cuts a regular straight-walled groove into the damaged area of ​​the road surface, the water pump starts, pumping out the cooling water in the water tank and spraying it onto the saw blade, thereby cooling the saw blade. Step 3: After the cutting is completed, the cutting mechanism stops and resets, and the crushing mechanism begins to crush the road surface in the cutting area. Step 4: After crushing is completed, the crushing mechanism stops and resets, and the cleaning mechanism carries out cleaning operations on the crushed area; Step 5: After cleaning is completed, the cleaning mechanism stops and resets. First, start the power source three to drive the rotation of the irregular cam, and then start the filling assembly to fill the cleaning area with asphalt. Step Six: After filling is completed, the filling assembly stops. First, start the reverse rotation of power source three to drive the compaction assembly to move away from the protective plate. Then, start the compaction assembly to compact the newly laid asphalt.

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