A road surface cutting and finishing device and a road crack repairing method

Abstract

The present application discloses a white-and-black deep crack repair device and a cyclic overlay construction method thereof, belonging to the field of road construction, and comprising a housing, on which a plurality of universal wheels are rotatably mounted, a first cutting knife for cutting both sides of a crack is arranged in the housing, a first driving roller is slidably arranged in the housing, the first cutting knife is slidably arranged on the first driving roller, a second cutting knife for cutting the end of the crack is arranged in the housing, a first driving assembly for driving the first driving roller to rotate is arranged on the housing, and a second driving assembly for driving the second cutting knife to move is arranged in the housing. The present application has the effect of reducing the stress of cracks in the road base layer at a deeper level.

Description

Technical Field

[0001] The present application relates to the field of road construction, and in particular to a road surface cutting and finishing device and a road crack repairing method. Background Art

[0002] Road quality improvement and reconstruction projects are generally used in busy traffic sections, with the characteristics of tight construction period and heavy construction tasks. Crack stabilization of old cement concrete pavement is a relatively mature technology abroad. At present, the treatment measures for cracks in asphalt pavements of highways are mainly divided into two types according to the purpose and effect of the treatment: water sealing and reinforcement.

[0003] The traditional quality improvement and transformation is to mill the upper layer of the road surface and then perform reinforcement prevention and treatment techniques such as cutting, filling, and laying anti-cracking stickers on reflective cracks. However, this method can only prevent and treat cracks in the asphalt overlay and fails to reduce the stress of cracks in the base layer at a deeper level. Summary of the invention

[0004] In order to reduce the stress of road base cracks at a deeper level, the present application provides a road surface cutting and sorting device and a road crack repair method.

[0005] The present application provides a road surface cutting and finishing device and a road crack repair method using the following technical solutions:

[0006] A road surface cutting and finishing device and a road crack repair method, comprising the following steps:

[0007] S1. Milling the entire road surface and collecting the milling material;

[0008] S2. Locally cut the cracks on the concrete pavement and clean the dust in the groove;

[0009] S3, performing secondary milling on the cut groove surface;

[0010] S4, pouring sealant into the cutting groove;

[0011] S5, using anti-cracking tape to repair the secondary milling foundation trench asphalt concrete construction joint formed in step S3;

[0012] S6. Stick the anti-cracking sticker on both sides of the construction joint of the repaired foundation trench and overlap each other;

[0013] S7, laying fiberglass geogrid on the entire road width;

[0014] S8. The collected milling materials are mixed with emulsified asphalt to make an overlay material with excellent adhesion, and the road surface is covered as a whole.

[0015] By adopting the above technical scheme, the crack reflection path can be effectively extended, and its ability to resist bending, tension and shear fatigue can be enhanced. After the overall milling of the upper layer of the road surface, the crack grooving is subjected to secondary deep milling, and the construction is carried out in parallel without delaying the overall project progress. Asphalt milling waste is combined with emulsified asphalt to produce a material with excellent adhesion, saving materials and achieving the goal of green and recyclable construction. By secondary milling and direct repair of the groove surface after cutting, multiple anti-crack barriers are set on the later development route of the cracks to effectively prevent and delay the reflection of the cracks to the road surface.

[0016] The present application also provides a road surface cutting and finishing device, including the following scheme:

[0017] Preferably, it includes an outer shell, a plurality of universal wheels are rotatably mounted on the outer shell, a first cutting knife for cutting both sides of the crack is arranged in the outer shell, a first driving roller is slidably arranged in the outer shell, the first cutting knife is slidably arranged on the first driving roller, a second cutting knife for cutting the end of the crack is arranged in the outer shell, a first driving component for driving the first driving roller to rotate is arranged on the outer shell, and a second driving component for driving the second cutting knife to move is arranged in the outer shell.

[0018] By adopting the above technical solution, when cutting the pavement cracks in S2, in the initial part, the lateral boundary of the crack end is first cut out by the second cutting knife, the first driving component drives the first driving roller to rotate, the rotation of the first driving roller causes the first cutting knife to rotate, and then the operator uses the first cutting knife to cut out the boundaries on both sides of the crack along the crack direction. When reaching the crack boundary, the second driving component drives the second cutting knife to move to the end of the crack to complete the cutting of the lateral boundary of the crack end. The operator does not need to move the device again to cut the boundary of the crack end, thereby improving work efficiency.

[0019] Preferably, the first driving assembly includes a first driving rod and a first bevel gear, the first driving rod passes through the first driving roller and is fixedly connected to the first driving roller, the first driving rod passes through the outer shell, the outer shell is provided with a first sliding groove for slidingly cooperating with the first driving rod, the first bevel gear is fixedly sleeved on the end of the first driving rod located outside the outer shell, and the outer shell is provided with a third driving assembly for driving the first bevel gear to rotate.

[0020] By adopting the above technical solution, the third drive assembly drives the first bevel gear to rotate, the rotation of the first bevel gear causes the first drive rod to rotate, the rotation of the first drive rod causes the first drive roller to rotate, the rotation of the first drive roller causes the first cutting knife to rotate, and the first cutting knife rotates to cut both sides of the crack.

[0021] Preferably, the third driving assembly includes a first motor and a first telescopic rod, the first motor is arranged on the housing, one end of the first telescopic rod is fixedly connected to the output end of the first motor, the other end of the first telescopic rod is fixedly sleeved with a second bevel gear, the first bevel gear and the second bevel gear are meshed with each other, a connecting buckle is arranged between the first telescopic rod and the first driving rod, one end of the connecting buckle is sleeved on the end of the first telescopic rod close to the second bevel gear, the connecting buckle is rotatably connected to the first telescopic rod, the other end of the connecting buckle is sleeved on the first driving rod, the connecting buckle is rotatably connected to the first driving rod, and a control assembly for adjusting the cutting depth of the first cutting knife is arranged on the housing.

[0022] By adopting the above technical solution, the control component drives the first telescopic rod to move away from the end of the first motor, and the connecting buckle follows the movement of the first telescopic rod. The movement of the connecting buckle causes the first drive roller to move, and the first cutting knife moves. After adjusting to the specified cutting depth, the operator starts the first motor, and the first motor drives the first telescopic rod to rotate. The rotation of the first telescopic rod causes the second bevel gear to rotate. The rotation of the second bevel gear causes the first bevel gear to rotate. The rotation of the first bevel gear causes the first drive rod to rotate. The rotation of the first drive rod causes the first drive roller to rotate, and the first cutting knife rotates to cut both sides of the crack.

[0023] Preferably, the second driving component includes an arc track and a first mounting seat, a second mounting seat is arranged in the outer shell, the arc track is symmetrically arranged on the second mounting seat, a slide is slidably connected to the second mounting seat, the second cutting knife is rotatably mounted on the first mounting seat, a driving motor is arranged on the first mounting seat, the second cutting knife is fixedly sleeved on the output end of the driving motor, the first mounting seat is slidably penetrated into the slide, a pulley is rotatably mounted on the end of the first mounting seat located in the slide, the pulley passes through the slide and abuts against the arc track, a first return spring is fixedly connected to the end of the first mounting seat located in the slide, the end of the first return spring away from the first mounting seat is fixedly connected to the slide, and a fourth driving component for driving the slide to move is arranged on the second mounting seat.

[0024] By adopting the above technical solution, when it is necessary to cut the end boundary of the crack, the driving motor drives the second cutting knife to rotate, and the fourth driving component drives the slide to move on the second mounting seat. The movement of the slide causes the first mounting seat to move, and the movement of the first mounting seat causes the pulley to abut against the arc track. As the angle of the arc track changes, the pulley pushes the first mounting seat to move on the second mounting seat and approach the cutting point. In order to prevent the second cutting knife from getting stuck, the operator must push the outer shell forward to move one end distance as the second cutting knife moves. After the cutting is completed, the driving motor stops, and the fourth driving component drives the slide to move to the initial position. Under the action of the first return spring, the pulley disengages from the arc track and the first mounting seat returns to the initial position.

[0025] Preferably, the fourth drive assembly includes a second motor and a first screw rod, the second motor is arranged on the second mounting seat, the first screw rod is fixedly connected to the output end of the second motor, the first screw rod passes through the slide seat, and the first screw rod is threadedly matched with the slide seat.

[0026] By adopting the above technical solution, when it is necessary to cut the end boundary of the crack, the driving motor drives the second cutting knife to rotate, the second motor is started, and the second motor drives the first screw to rotate. The rotation of the first screw causes the slide to move on the second mounting seat. The movement of the first mounting seat causes the pulley to abut against the arc track. As the angle of the arc track changes, the pulley pushes the first mounting seat to move on the second mounting seat and approach the cutting point. After the cutting is completed, the driving motor stops, the second motor reverses, and the reversal of the second motor causes the slide to move to the initial position.

[0027] Preferably, a collecting component for collecting cutting waste is provided in the shell, and the collecting component includes a conveyor belt and a collecting box, and the conveyor belt and the collecting box are both arranged in the shell, and a plurality of second driving rods are slidably arranged in the shell, and a plurality of second sliding grooves for slidingly cooperating with the second driving rods are opened in the shell, and the conveyor belt is wound around the plurality of second driving rods, and a second return spring is provided in the second sliding groove close to the collecting box, and one end of the second return spring is fixedly connected to the inner end wall of the second sliding groove, and the other end of the second return spring abuts against the end of the second driving rod located in the second sliding groove, and a crushing rod for crushing the cutting waste is provided on the second driving rod, and a fifth driving component for driving the second driving rod to rotate is provided in the shell.

[0028] By adopting the above technical solution, the fifth driving component drives the second driving rod to rotate, and the rotation of the second driving rod causes the conveyor belt to run. At the same time, the crushing rod runs. When the first cutting knife cuts both sides of the crack, the crushing rod breaks the first cutting knife part, and the broken waste enters the collection box through the transmission belt.

[0029] Preferably, the fifth driving assembly includes a transmission belt, which is wound around the first driving rod and the second driving rod away from the collecting box. A tensioning wheel is provided on the outer casing, and the tensioning wheel abuts against the transmission belt. A first spur gear is fixedly provided on the second driving rod, and a second spur gear is fixedly provided on the rotating shaft of the crushing rod, and the first spur gear and the second spur gear are meshed with each other.

[0030] By adopting the above technical solution, the operator starts the first motor, the first motor drives the first telescopic rod to rotate, the rotation of the first telescopic rod causes the second bevel gear to rotate, the rotation of the second bevel gear causes the first bevel gear to rotate, the rotation of the first bevel gear causes the first driving rod to rotate, the rotation of the first driving rod causes the first driving roller to rotate, the first cutting knife rotates to cut both sides of the crack, the rotation of the first driving rod causes the transmission belt to run at the same time, the operation of the transmission belt causes the second driving rod to rotate, the rotation of the second driving rod causes the conveyor belt to run, the rotation of the second driving rod causes the first spur gear to rotate at the same time, the rotation of the first spur gear causes the second spur gear to rotate, the rotation of the second spur gear causes the crushing rod to rotate, the crushing rod crushes the waste cut by the first cutting knife, and the crushed waste enters the collection box through the conveyor belt.

[0031] Preferably, the control component includes a connecting rod, one end of the connecting rod is sleeved on the first telescopic rod, and the other end of the connecting rod is sleeved on the second driving rod, the first telescopic rod and the second driving rod are both rotatably connected to the connecting rod, a second screw rod is passed through the outer shell, the outer shell is rotatably connected to the second screw rod, the second screw rod passes through the connecting rod, the second screw rod is threadedly matched with the connecting rod, and a hand wheel is fixedly sleeved on the end of the second screw rod located outside the outer shell.

[0032] By adopting the above technical solution, the operator moves the device to the construction area, and then the operator turns the hand wheel. The rotation of the hand wheel causes the second screw rod to rotate, and the rotation of the second screw rod causes the connecting rod to move. The movement of the connecting rod causes the first telescopic rod to extend, and the movement of the connecting rod simultaneously causes the second driving rod to move in the second slide groove. The movement of the second driving rod causes one end of the conveyor belt to move to the same height as the cutting depth of the first cutting blade, and the crushing rod moves to the same position as the cutting depth at the same time. Under the action of the second return spring, the two second driving rods can keep the conveyor belt in a tensioned state at all times.

[0033] In summary, the present application includes at least one of the following beneficial technical effects:

[0034] 1. After the overall milling of the upper pavement layer, the crack grooves are milled for the second time and filled with sealant, which can effectively extend the crack reflection path, enhance its ability to resist bending, tension and shear fatigue, and parallel construction without delaying the overall project progress;

[0035] 2. Through secondary milling and direct repair of the groove surface after cutting, multiple anti-crack barriers are set up on the crack later development route to effectively block and delay the reflection of cracks to the road surface;

[0036] 3. By setting a second cutting knife, the second driving assembly drives the second cutting knife to move to the end of the crack to complete the cutting of the lateral boundary of the end of the crack. The operator does not need to move the device again to cut the boundary of the end of the crack, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a structural schematic diagram of a road surface cutting and finishing device according to an embodiment of the present application.

[0038] Figure 2 It is a schematic diagram of the structure of the first drive component of an embodiment of the present application.

[0039] Figure 3 It is a schematic diagram of the structure of the collection component of an embodiment of the present application.

[0040] Figure 4 It is a schematic diagram of the structure of a crushing rod according to an embodiment of the present application.

[0041] Figure 5 It is a schematic diagram of the structure of the fourth drive assembly of an embodiment of the present application.

[0042] Description of reference numerals:

[0043] 1. Shell; 11. Universal wheel; 12. Push handle; 13. First cutting blade; 14. First driving roller; 15. Second cutting blade; 2. First driving assembly; 21. First driving rod; 211. First slide; 22. First bevel gear; 23. First motor; 24. First telescopic rod; 25. Second bevel gear; 26. Connecting buckle; 3. Second driving assembly; 31. Arc track; 32. First mounting seat; 33. Second mounting seat; 34. Sliding seat; 35. Driving motor; 36. Pulley ; 37. first return spring; 4. fourth drive assembly; 41. second motor; 42. first screw rod; 5. collection assembly; 51. conveyor belt; 52. collection box; 53. second drive rod; 531. second slide groove; 54. second return spring; 55. crushing rod; 6. fifth drive assembly; 61. transmission belt; 62. tensioning wheel; 63. first spur gear; 64. second spur gear; 65. pulley; 7. control assembly; 71. connecting rod; 72. second screw rod; 73. handwheel. DETAILED DESCRIPTION

[0044] The following is combined with Figure 1-5 This application is described in further detail.

[0045] The present application discloses a road surface cutting and finishing device and a road crack repair method, which comprises the following steps:

[0046] S1. Use a milling machine to mill the entire construction road surface layer, and collect the waste generated by milling;

[0047] S2, using a road surface cutting and finishing device to locally cut cracks on the concrete road surface and clean the dust in the groove at the same time;

[0048] S3, performing secondary milling on the groove surface formed after cutting in S2;

[0049] S4, pouring sealant into the cutting groove;

[0050] S5, using anti-cracking tape to repair the secondary milling foundation trench asphalt concrete construction joint formed in step S3;

[0051] S6. Stick the anti-cracking sticker on both sides of the construction joint of the repaired foundation trench and overlap each other;

[0052] S7, laying fiberglass geogrid on the entire road width;

[0053] S8. The collected milling materials are mixed with emulsified asphalt to make an overlay material with excellent adhesion, and the road surface is covered as a whole.

[0054] Reference Figure 1 A road cutting and tidying device includes a shell 1 and a universal wheel 11. The shell 1 is horizontally arranged, a plurality of universal wheels 11 are evenly arranged at the bottom of the shell 1, and a push handle 12 is arranged on the outer wall of the shell 1.

[0055] Reference Figure 1 as well as Figure 2 The housing 1 is provided with a first driving assembly 2, which includes a first driving rod 21 and a first bevel gear 22. The first driving rod 21 penetrates into the housing 1, and the housing 1 is provided with a first slide groove 211 along its height direction. The first driving rod 21 is slidably matched with the inner side wall of the first slide groove 211, and the first bevel gear 22 is fixedly sleeved on the end of the first driving rod 21 located outside the housing 1.

[0056] Reference Figure 1 as well as Figure 2 The housing 1 is provided with a third driving assembly, which includes a first motor 23 and a first telescopic rod 24. The first motor 23 is fixedly connected to the outer wall of the housing 1 near the first bevel gear 22, and the first telescopic rod 24 is fixedly connected to the output end of the first motor 23. The first telescopic rod 24 is composed of a sliding rod and a sleeve. The sliding rod is inserted into the sleeve, and the sliding rod cooperates with the sleeve. The end of the sliding rod located in the sleeve is fixedly connected to a limit block, and a limit groove for slidingly cooperating with the limit block is opened in the sleeve along its length direction.

[0057] Reference Figure 1 as well as Figure 2 The end of the slide rod away from the first motor 23 is fixedly sleeved with a second bevel gear 25, and the second bevel gear 25 is meshed with the first bevel gear 22. A connecting buckle 26 is sleeved on the slide rod, and the end of the connecting buckle 26 away from the slide rod is sleeved on the first driving rod 21, and the slide rod and the first driving rod 21 are both rotatably connected with the connecting buckle 26.

[0058] Reference Figure 2 as well as Figure 3 The housing 1 is provided with a control assembly 7, which includes a connecting rod 71. The connecting rod 71 is arranged horizontally, and the end of the connecting rod 71 away from the push handle 12 is sleeved on the sliding rod, and the connecting rod 71 is rotatably connected to the sliding rod. A second screw rod 72 is passed through the housing 1, and the second screw rod 72 is rotatably connected to the housing 1. One end of the second screw rod 72 passes through the connecting rod 71, and the other end of the second screw rod 72 is fixedly sleeved with a hand wheel 73, and the second screw rod 72 is threadedly matched with the connecting rod 71.

[0059] Reference Figure 3 A first driving roller 14 is fixedly sleeved on the end of the first driving rod 21 located in the housing 1 , and two first cutting knives 13 are arranged on the first driving roller 14 , and the two first cutting knives 13 are evenly arranged along the first driving roller 14 .

[0060] Reference Figure 3 as well as Figure 4 A collecting assembly 5 is arranged in the housing 1, and the collecting assembly 5 includes a conveyor belt 51 and a collecting box 52. The collecting box 52 is fixedly installed in the end of the housing 1 close to the push handle 12. Two second driving rods 53 are arranged on the side wall of the housing 1 close to the push handle 12 at intervals. The housing 1 and the second driving rods 53 are slidably matched. A plurality of second slide grooves 531 are opened on the side wall of the housing 1 along its height direction. The second driving rods 53 are slidably matched with the inner side wall of the second slide groove 531.

[0061] Reference Figure 3 The conveyor belt 51 is wound around two second driving rods 53, and the conveyor belt 51 is set at an angle. A second return spring 54 is set on the second driving rod 53 at the top of the conveyor belt 51, and one end of the second return spring 54 is fixedly connected to the inner end wall of the second slide groove 531, and the other end of the second return spring 54 is in contact with the second driving rod 53.

[0062] Reference Figure 2 as well as Figure 3The housing 1 is provided with a fifth driving assembly 6, which includes a transmission belt 61. A pulley 65 is provided on the end of the first driving rod 21 close to the first bevel gear 22, and a pulley 65 is also provided on the second driving rod 53 away from the collection box 52. The transmission belt 61 is wound around the two pulleys 65. A tensioning wheel 62 is provided on the side wall of the housing 1 close to the transmission belt 61, and the tensioning wheel 62 abuts against the transmission belt 61.

[0063] Reference Figure 2 as well as Figure 3 The end of the connecting rod 71 away from the first telescopic rod 24 is sleeved on the second driving rod 53 , and the second driving rod 53 is rotatably connected to the connecting rod 71 .

[0064] Reference Figure 3 as well as Figure 4 A support seat is provided in the housing 1, the support seat is slidably connected to the inner wall of the housing 1, the support seat is sleeved on the second driving rod 53, and the support seat is rotatably connected to the second driving rod 53. A crushing rod 55 is penetrated on the support seat, and the crushing rod 55 is rotatably connected to the support seat.

[0065] Reference Figure 3 as well as Figure 4 A first spur gear 63 is fixedly sleeved on the end of the second driving rod 53 close to the transmission belt 61, and a second spur gear 64 is fixedly sleeved on the rotating shaft of the crushing rod 55. The first spur gear 63 and the second spur gear 64 are meshed with each other.

[0066] Reference Figure 3 as well as Figure 5 A second mounting seat 33 is fixedly connected to the side wall of the housing 1 away from the collection box 52, and the second mounting seat 33 is located on the top of the first driving roller 14. A second driving assembly 3 is arranged on the second mounting seat 33, and the second driving assembly 3 includes an arc track 31 and a first mounting seat 32. The arc track 31 is arranged on the end of the second mounting seat 33 close to the collection box 52.

[0067] Reference Figure 3 as well as Figure 5 The second mounting seat 33 is slidably connected with a slide seat 34, and the slide seat 34 is vertically arranged. The first mounting seat 32 is inserted into the slide seat 34, and the first mounting seat 32 and the slide seat 34 are slidably matched. A pulley 36 is arranged on the end of the first mounting seat 32 located in the slide seat 34, and the pulley 36 passes through the slide seat 34. The slide seat 34 is provided with a third slide groove, and the pulley 36 is slidably matched with the inner side wall of the third slide groove, and the end of the pulley 36 located outside the slide seat 34 can abut against the arc track 31.

[0068] Reference Figure 5A first return spring 37 is fixedly connected to the end of the first mounting seat 32 located in the slide seat 34, and the end of the first return spring 37 away from the first mounting seat 32 is fixedly connected to the inner wall of the third slide groove.

[0069] Reference Figure 3 as well as Figure 5 A second cutting knife 15 is provided on the end of the first mounting seat 32 away from the sliding seat 34, and a driving motor 35 is fixedly connected to the first mounting seat 32. The output end of the driving motor 35 passes through the first mounting seat 32, and the output end of the driving motor 35 slides with the first mounting seat 32. The second cutting knife 15 is fixedly sleeved on the output end of the driving motor 35.

[0070] Reference Figure 3 as well as Figure 5 The second mounting seat 33 is provided with a fourth drive assembly 4, which includes a second motor 41 and a first screw rod 42. The second motor 41 is fixedly connected to the second mounting seat 33, the first screw rod 42 is fixedly connected to the output end of the second motor 41, the end of the first screw rod 42 away from the second motor 41 passes through the slide seat 34, and the first screw rod 42 is threadedly engaged with the slide seat 34.

[0071] The implementation principle of a road surface cutting and finishing device in an embodiment of the present application is as follows: when it is necessary to cut the boundary of the end of a crack, the driving motor 35 drives the second cutting knife 15 to rotate, the second motor 41 is started, and the second motor 41 drives the first screw rod 42 to rotate. The rotation of the first screw rod 42 causes the slide 34 to move on the second mounting seat 33. The movement of the first mounting seat 32 causes the pulley 36 to abut against the arc track 31. As the angle of the arc track 31 changes, the pulley 36 pushes the first mounting seat 32 to move on the second mounting seat 33 and approach the cutting point. After the cutting is completed, the driving motor 35 stops, and the second motor 41 reverses. The second motor 41 reverses to cause the slide 34 to move to the initial position. When the operator cuts the end of the crack, the operator needs to move the housing 1 for a distance to prevent the second cutting knife 15 from getting stuck.

[0072] After the cutting of the crack end is completed, the operator starts the first motor 23, and the first motor 23 drives the first telescopic rod 24 to rotate. The rotation of the first telescopic rod 24 causes the second bevel gear 25 to rotate. The rotation of the second bevel gear 25 causes the first bevel gear 22 to rotate. The rotation of the first bevel gear 22 causes the first driving rod 21 to rotate. The rotation of the first driving rod 21 causes the first driving roller 14 to rotate, and the first cutting knife 13 to rotate. The control component 7 drives the first telescopic rod 24 to move away from the end of the first motor 23, and the connecting buckle 26 follows the movement of the first telescopic rod 24. The movement of the connecting buckle 26 causes the first driving roller 14 to move, and the first cutting knife 13 to move. After adjusting to the specified cutting depth, the operator pulls the push handle 12 to cut both sides of the crack along the crack direction.

[0073] The control component 7 simultaneously tilts the conveyor belt 51 to the same cutting depth as the first cutting knife 13, the first driving rod 21 rotates and the transmission belt 61 runs, the running of the transmission belt 61 rotates the second driving rod 53, the second driving rod 53 rotates and the conveyor belt 51 runs, the second driving rod 53 rotates and the first spur gear 63 rotates, the first spur gear 63 rotates and the second spur gear 64 rotates, the second spur gear 64 rotates and the crushing rod 55 rotates, the crushing rod 55 thereby crushes the waste cut by the first cutting knife 13, the crushed waste enters the collection box 52 through the conveyor belt 51, the waste formed by the cutting is collected while the crack is cut, no manual cleaning is required, the work efficiency is improved, and the second cutting knife 15 is set to cut the end of the crack, there is no need to change the direction of the first cutting knife 13 multiple times, the work efficiency is improved.

[0074] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A road surface cutting and finishing device, characterized in that: The invention comprises a shell (1), a plurality of universal wheels (11) are rotatably mounted on the shell (1), a first cutting knife (13) for cutting two sides of a crack is arranged in the shell (1), a first driving roller (14) is slidably arranged in the shell (1), the first cutting knife (13) is slidably arranged on the first driving roller (14), a second cutting knife (15) for cutting the end of the crack is arranged in the shell (1), a first driving component (2) for driving the first driving roller (14) to rotate is arranged on the shell (1), and a second driving component (3) for driving the second cutting knife (15) to move is arranged in the shell (1); The first driving assembly (2) comprises a first driving rod (21) and a first bevel gear (22); the first driving rod (21) passes through the first driving roller (14) and is fixedly connected to the first driving roller (14); the first driving rod (21) passes through the housing (1); a first sliding groove (211) for slidingly cooperating with the first driving rod (21) is provided on the housing (1); the first bevel gear (22) is fixedly sleeved on the end of the first driving rod (21) located outside the housing (1); and a third driving assembly for driving the first bevel gear (22) to rotate is provided on the housing (1).

2. A road surface cutting and finishing device according to claim 1, characterized in that: The third driving assembly comprises a first motor (23) and a first telescopic rod (24), wherein the first motor (23) is arranged on the housing (1), one end of the first telescopic rod (24) is fixedly connected to the output end of the first motor (23), the other end of the first telescopic rod (24) is fixedly sleeved with a second bevel gear (25), the first bevel gear (22) and the second bevel gear (25) are meshed with each other, a connecting buckle (26) is arranged between the first telescopic rod (24) and the first driving rod (21), one end of the connecting buckle (26) is sleeved on the end of the first telescopic rod (24) close to the second bevel gear (25), the connecting buckle (26) is rotatably connected to the first telescopic rod (24), the other end of the connecting buckle (26) is sleeved on the first driving rod (21), the connecting buckle (26) is rotatably connected to the first driving rod (21), and a control assembly (7) for adjusting the cutting depth of the first cutting knife (13) is arranged on the housing (1).

3. A road surface cutting and finishing device according to claim 1, characterized in that: The second driving assembly (3) comprises an arc track (31) and a first mounting seat (32); a second mounting seat (33) is arranged in the housing (1); the arc track (31) is symmetrically arranged on the second mounting seat (33); a sliding seat (34) is slidably connected to the second mounting seat (33); the second cutting knife (15) is rotatably mounted on the first mounting seat (32); a driving motor (35) is arranged on the first mounting seat (32); the second cutting knife (15) is fixedly sleeved on the output end of the driving motor (35); and the first mounting seat (32) is slidably penetrated in the first mounting seat (34). In the slide seat (34), a pulley (36) is rotatably mounted on the end of the first mounting seat (32) located in the slide seat (34), and the pulley (36) passes through the slide seat (34) and abuts against the arc track (31). A first return spring (37) is fixedly connected to the end of the first mounting seat (32) located in the slide seat (34), and the end of the first return spring (37) away from the first mounting seat (32) is fixedly connected to the slide seat (34), and a fourth driving component (4) for driving the slide seat (34) to move is arranged on the second mounting seat (33).

4. A road surface cutting and finishing device according to claim 3, characterized in that: The fourth driving assembly (4) comprises a second motor (41) and a first screw rod (42), wherein the second motor (41) is arranged on the second mounting seat (33), the first screw rod (42) is fixedly connected to the output end of the second motor (41), the first screw rod (42) passes through the slide seat (34), and the first screw rod (42) is threadedly matched with the slide seat (34).

5. A road surface cutting and finishing device according to claim 2, characterized in that: The housing (1) is provided with a collecting assembly (5) for collecting cutting waste, and the collecting assembly (5) comprises a conveyor belt (51) and a collecting box (52). The conveyor belt (51) and the collecting box (52) are both arranged in the housing (1). A plurality of second driving rods (53) are slidably arranged in the housing (1). A plurality of second sliding grooves (531) for slidingly cooperating with the second driving rods (53) are provided in the housing (1). The conveyor belt (51) is wound around the plurality of second driving rods (53) and is arranged close to the second driving rods (53). A second return spring (54) is arranged in the second slide groove (531) near the collection box (52), one end of the second return spring (54) is fixedly connected to the inner end wall of the second slide groove (531), the other end of the second return spring (54) is abutted against the end of the second drive rod (53) located in the second slide groove (531), the second drive rod (53) is provided with a crushing rod (55) for crushing the cutting waste, and the housing (1) is provided with a fifth drive assembly (6) for driving the second drive rod (53) to rotate.

6. A road surface cutting and finishing device according to claim 5, characterized in that: The fifth driving assembly (6) comprises a transmission belt (61), the transmission belt (61) being wound around the first driving rod (21) and the second driving rod (53) away from the collecting box (52), the outer shell (1) being provided with a tensioning wheel (62), the tensioning wheel (62) being in contact with the transmission belt (61), the second driving rod (53) being fixedly sleeved with a first spur gear (63), the rotating shaft of the crushing rod (55) being fixedly sleeved with a second spur gear (64), the first spur gear (63) and the second spur gear (64) being meshed with each other.

7. A road surface cutting and finishing device according to claim 5, characterized in that: The control assembly (7) comprises a connecting rod (71), one end of which is sleeved on the first telescopic rod (24), and the other end of which is sleeved on the second driving rod (53); the first telescopic rod (24) and the second driving rod (53) are both rotatably connected to the connecting rod (71); a second screw rod (72) is passed through the housing (1); the housing (1) is rotatably connected to the second screw rod (72); the second screw rod (72) passes through the connecting rod (71); the second screw rod (72) is threadedly matched with the connecting rod (71); a hand wheel (73) is fixedly sleeved on the end of the second screw rod (72) located outside the housing (1).

8. A road crack repair method, based on a road surface cutting and finishing device according to claim 1, characterized in that: The following steps are involved: S1. Milling the entire road surface and collecting the milling material; S2. Perform local cutting on the cracks on the concrete pavement and clean the dust in the groove; S3, performing secondary milling on the cut groove surface; S4, pouring sealant into the cutting groove; S5, using anti-cracking tape to repair the secondary milling foundation trench asphalt concrete construction joint formed in step S3; S6. Stick the anti-cracking sticker on both sides of the construction joint of the repaired foundation trench and overlap each other; S7, laying fiberglass geogrid on the entire road width; S8. The collected milling materials are mixed with emulsified asphalt to make overlay materials, and the road surface is covered as a whole.

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