Road repairing device and repairing method

Abstract

The invention discloses a road repairing device and a repairing method.The repairing device comprises a repairing vehicle, a supporting base, a supporting shaft, a mounting frame, a cutting mechanism, a compacting mechanism and the like, and the cutting mechanism comprises a bearing shaft vertically and rotatably connected to the mounting frame; the bearing disc is horizontally fixed at the end part of the bearing shaft; the bearing frame is arranged on the bearing disc; the cutting drilling machine is connected with the bearing frame through a hydraulic cylinder; the cutting drill bit is vertically arranged at the end part of a drill rod of the cutting drilling machine; and the multiple cutting blocks are integrally formed on the side wall of the cutting drill bit. According to the invention, the cutting surfaces on the roadbed layer and the asphalt layer of the pavement are inclined, so that the cutting surfaces have limiting capability, and after the concrete repairing material is used for repairing the roadbed layer and the asphalt repairing material is used for repairing the asphalt pavement, the cutting surfaces can be cut; the connection stability of the concrete repairing material and the roadbed layer and the asphalt repairing material and the asphalt pavement at the cutting surface position can be improved, so that the road repairing effect is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of road repair, and in particular relates to a road repair device and a repair method. Background Art

[0002] The pavement is an asphalt structure layer of a certain thickness paved on the roadbed. It directly bears the effects of various traffic loads and is greatly affected by factors such as climate, hydrology, and traffic intensity. As the use time increases, the pavement will show varying degrees of damage, such as cracks, potholes, etc. Through daily maintenance and repairs, the service life of the road can be extended and traffic safety can be improved.

[0003] In the road repair method in the related art, a cutting device is usually used to cut an outline around the damaged position of the asphalt pavement, and then the asphalt pavement within the outline is excavated, and then the asphalt repair material is poured into the excavated position, and the asphalt repair material is compacted by a compaction device to achieve the repair of the asphalt pavement. For roads with damaged roadbeds, workers also need to cut the damaged position of the roadbed, and then pour concrete repair materials to achieve the repair of the concrete layer, and then carry out asphalt pavement repair operations.

[0004] However, after the cutting device cuts out the contour around the damaged location of the asphalt pavement and the road base, the cut surfaces are mostly vertical planes. After the concrete repair material is poured and the asphalt repair material is compacted, the connection stability between the concrete repair material and the road base, and between the asphalt repair material and the asphalt pavement at the cut surface is relatively poor, which affects the road repair effect and needs to be improved. Summary of the invention

[0005] In order to solve all or part of the above problems, the purpose of the present invention is to provide a road repair device and a repair method, which can improve the connection stability between concrete repair materials and road base and asphalt repair materials and asphalt pavement at the cutting surface position, thereby improving the road repair effect.

[0006] In a first aspect, the present invention provides a road repair device, comprising a repair vehicle, a support seat is vertically slidably connected to the rear of the repair vehicle, a hydraulic assembly for controlling the vertical movement of the support seat is arranged on the repair vehicle, a support shaft is horizontally rotatably connected to the support seat, an end of the support shaft away from the support seat is vertically fixedly connected to a mounting frame, a cutting mechanism is arranged at one end of the mounting frame, a compacting mechanism is arranged at the other end, and a motor assembly for controlling the rotation of the support shaft is arranged on the support seat; The cutting mechanism comprises: A receiving shaft, vertically rotatably connected to the mounting frame; A control member, disposed on the mounting frame and used to control the rotation of the receiving shaft; A receiving plate is horizontally fixed to an end of the receiving shaft away from the mounting frame, and the receiving plate and the receiving shaft are coaxial; A receiving frame is arranged on the surface of the receiving plate away from the receiving shaft; A cutting drill, connected to the receiving frame via a hydraulic cylinder, and the hydraulic cylinder is used to control the vertical movement of the cutting drill; A cutting drill bit, vertically arranged at the end of the drill rod of the cutting drill; A plurality of cutting blocks, each of which is integrally formed and arranged on the side wall of the cutting drill bit; Among them, multiple cutting blocks are arranged at equal intervals along the circumference of the cutting drill bit, the cross-section of the cutting block along the vertical direction is a right triangle, and after the cutting block cuts the road base layer and the road asphalt layer, the cutting surfaces on the road base layer and the road asphalt layer are inclined.

[0007] Optionally, the receiving frame is slidably connected to the receiving tray, and a tube control is provided on the receiving frame, and the tube control is used to control the radial movement of the receiving frame along the receiving tray.

[0008] Optionally, the pipe control unit includes a hydraulic push rod fixed on the receiving plate, and a piston end of the hydraulic push rod is fixedly connected to the receiving frame.

[0009] Optionally, the control component includes a control motor, a control gear and a control gear ring, the control motor is arranged on the mounting frame, the control gear is fixedly mounted on the output shaft of the control motor, the control gear ring is fixedly mounted on the receiving shaft, and the control gear ring is meshed with the control gear.

[0010] Optionally, the compacting mechanism comprises: A rotating shaft, vertically rotatably connected to the mounting frame and coaxial with the receiving shaft; A driving member, used for controlling the rotation of the rotating shaft; A support frame, fixed to an end of the rotating shaft away from the mounting frame; There are two compaction rollers, which are horizontally rotatably connected to the support frame, and the two compaction rollers are symmetrically distributed on both sides of the rotating shaft, and the two compaction rollers are used to compact the asphalt repair material together.

[0011] Optionally, the driving member includes a driving gear ring fixedly mounted on the rotating shaft, the control motor is vertically slidably connected to the mounting frame, and the mounting frame is provided with an electric push rod for driving the control motor to move vertically so that the control gear engages with the control gear ring or the driving gear ring.

[0012] Optionally, a feeding roller is horizontally arranged on the support frame, the feeding roller is located between the two compacting rollers, and the center position of the feeding roller is fixedly connected to the rotating shaft, the inside of the feeding roller is provided with a accommodating cavity along its axial direction, and the bottom of the feeding roller is provided with a long strip feeding port, and the length direction of the feeding port is parallel to the axial direction of the feeding roller; A feed hole is provided on the rotating shaft along its axial direction, and the feed hole is connected to the accommodating cavity. A feed hopper is provided at the end of the rotating shaft away from the feeding roller, and the feed hopper is connected to the feed hole. An extrusion mechanism is provided in the feed hole, and the extrusion mechanism is used to extrude the asphalt repair material into the accommodating cavity so that the asphalt repair material can be discharged through the feeding port.

[0013] Optionally, the extrusion mechanism includes an extrusion auger vertically rotatably connected to the feed hole, a servo motor is provided on the feed hopper, and an output shaft of the servo motor is coaxially and fixedly connected to the extrusion auger.

[0014] In a second aspect, the present invention provides a road repair method using a repair device, comprising the following steps: S1, cutting a circular cutting contour around the damaged position of the asphalt pavement by a cutting mechanism, and excavating the asphalt pavement inside the cutting contour; S2, judging whether the roadbed is damaged. If the roadbed is damaged, the cutting mechanism is used to cut the roadbed along the cutting contour, and the roadbed at the damaged position is removed; S3, if the roadbed is damaged, the cutting block on the cutting mechanism cuts the roadbed and the cutting surface of the asphalt pavement so that the cutting surface of the roadbed and the cutting surface of the asphalt pavement are inclined; if the roadbed is not damaged, the cutting block on the cutting mechanism cuts the cutting surface of the asphalt pavement so that the cutting surface of the asphalt pavement is inclined; S4, if the road base is damaged, first perform concrete repair on the road base, and then pour asphalt repair material on the excavated position of the asphalt pavement; if the road base is not damaged, directly pour the asphalt repair material on the excavated position of the asphalt pavement; S5, compact the asphalt patch material through the compaction mechanism and ensure that the asphalt patch material is flush with the asphalt pavement.

[0015] Optionally, in S3, when the cutting surface of the asphalt pavement is cut, the cutting block is controlled to be located at the lower end position of the asphalt pavement; when the road base layer and the cutting surface of the asphalt pavement are cut, the cutting block is controlled to be located at the connecting position of the road base layer and the asphalt pavement, so as to achieve synchronous cutting of the road base layer and the cutting surface on the asphalt pavement.

[0016] It can be seen from the above technical solutions that the road repair device and repair method provided by the present invention have the following advantages: After the repair device cuts the road base layer and the asphalt layer of the road surface, the cutting surface on the road base layer and the asphalt layer of the road surface is inclined under the cutting action of the cutting block, so that the cutting surface itself has a limiting ability. When the concrete repair material repairs the road base layer and the asphalt repair material repairs the asphalt pavement, the cutting surface can limit the concrete repair material and the asphalt repair material at the cutting surface position, so as to improve the connection stability between the concrete repair material and the road base layer and the asphalt repair material and the asphalt pavement at the cutting surface position, improve the road repair effect, and reduce the risk of warping at the junction of the repaired asphalt pavement and the original asphalt pavement.

[0017] Other features and advantages of the present invention will be set forth in the description which follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the technical solution of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the technical solution of the present invention and do not constitute a limitation on the technical solution of the present invention.

[0019] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 It is a front view of an embodiment of the present invention; Figure 3 Schematic diagram of the structure of the compacting mechanism in an embodiment of the present invention.

[0020] Description of reference numerals: 1. Repair vehicle; 2. Support seat; 3. Hydraulic assembly; 4. Support shaft; 5. Mounting frame; 6. Cutting mechanism; 61. Receiver shaft; 62. Control member; 621. Control motor; 622. Control gear; 623. Control gear ring; 63. Receiver plate; 64. Receiver frame; 65. Cutting drill; 66. Hydraulic cylinder; 67. Cutting drill bit; 68. Cutting block; 7. Compacting mechanism; 71. Rotating shaft; 72. Driving member; 721. Driving gear ring; 73. Support frame; 74. Compacting roller; 8. Motor assembly; 9. Pipe control unit; 91. Hydraulic push rod; 10. Electric push rod; 11. Feeding roller; 12. Accommodating chamber; 13. Feeding port; 14. Feeding hole; 15. Feeding hopper; 16. Extrusion mechanism; 161. Extrusion auger; 162. Servo motor. DETAILED DESCRIPTION

[0021] To make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other arbitrarily without conflict.

[0022] like Figure 1 , Figure 2 , Figure 3 The embodiment of the present invention is shown in the figure, which discloses a road repair device, including a repair vehicle 1, a support seat 2 is vertically slidably connected to the rear of the repair vehicle 1, and a hydraulic assembly 3 for controlling the vertical movement of the support seat 2 is provided on the repair vehicle 1, a support shaft 4 is horizontally rotatably connected to the support seat 2, and a mounting frame 5 is vertically fixedly connected to one end of the support shaft 4 away from the support seat 2. A cutting mechanism 6 is provided at one end of the mounting frame 5, and a compacting mechanism 7 is provided at the other end. A motor assembly 8 is provided on the support seat 2, and the motor assembly 8 is used to control the rotation of the support shaft 4 and move the cutting mechanism 6 or the compacting mechanism 7 to the bottom of the mounting frame 5.

[0023] When the road needs to be repaired, the motor assembly 8 controls the rotation of the support shaft 4, and the cutting mechanism 6 is located below the mounting frame 5, and then the cutting mechanism 6 can cut an outline around the damaged road. After the staff digs out the damaged road surface within the cutting outline and pours the asphalt repair material into the dug position, the motor assembly 8 controls the rotation of the support shaft 4, and the compacting mechanism 7 is located below the support frame 73, and then the compacting mechanism 7 compacts the asphalt repair material, and the road repair operation can be achieved.

[0024] Reference Figure 1 , Figure 2 The cutting mechanism 6 includes a receiving shaft 61 which is vertically rotatably connected to the mounting frame 5, and a control member 62 for controlling the rotation of the receiving shaft 61 is provided on the mounting frame 5. A circular receiving plate 63 is horizontally fixedly connected to the end of the receiving shaft 61 away from the mounting frame 5, and the receiving plate 63 is coaxial with the receiving shaft 61, and a receiving frame 64 is provided on the surface of the receiving plate 63 away from the receiving shaft 61. A cutting drill 65 is provided on the side of the receiving frame 64 away from the receiving plate 63, and the cutting drill 65 is connected to the receiving frame 64 through a hydraulic cylinder 66, and the hydraulic cylinder 66 is used to control the vertical movement of the cutting drill 65.

[0025] Reference Figure 1 , Figure 2 The end of the drill rod of the cutting drill 65 is integrally provided with a cutting drill bit 67, and the side wall of the cutting drill bit 67 is integrally provided with a plurality of cutting blocks 68, and the plurality of cutting blocks 68 are arranged at equal intervals along the circumference of the cutting drill bit 67. The cross section of the cutting block 68 along the vertical direction is a right triangle, and the hypotenuse of the cutting block 68 is used to cut the cutting surface, so that after the cutting block 68 cuts the road base layer and the road surface asphalt layer, the cutting surface on the road base layer and the road surface asphalt layer is inclined.

[0026] Reference Figure 1 , Figure 2The receiving frame 64 is slidably connected to the receiving plate 63, and a pipe control 9 is provided on the receiving frame 64. The pipe control 9 is used to control the radial movement of the receiving frame 64 along the receiving plate 63 to adjust the cutting radius. The pipe control 9 includes a hydraulic push rod 91 fixed on the receiving plate 63, and the piston end of the hydraulic push rod 91 is fixedly connected to the receiving frame 64.

[0027] After the staff has excavated the damaged road surface within the cutting contour, they place the cutting block 68 against the cutting surface and start the cutting drill 65. At the same time, the hydraulic push rod 91 controls the receiving frame 64 to slowly drive the cutting drill 65 and other components to move toward the cutting surface, and the control part 62 controls the receiving shaft 61 to drive the receiving plate 63 and other components to rotate slowly, so that the cutting surface can be formed into an inclined surface.

[0028] Since the cutting surfaces on the road base and the asphalt layer of the road surface are inclined, the cutting surfaces themselves have the ability to limit the position of the concrete repair material and the asphalt repair material at the cutting surface position after the concrete repair material repairs the road base and the asphalt repair material repairs the asphalt road surface. This design can improve the connection stability between the concrete repair material and the road base and the asphalt repair material and the asphalt road surface at the cutting surface position, improve the road repair effect, and reduce the risk of warping at the junction of the repaired asphalt road surface and the original asphalt road surface.

[0029] Reference Figure 1 , Figure 2 The control component 62 includes a control motor 621, a control gear 622 and a control gear ring 623. The control motor 621 is arranged on the mounting frame 5. The control gear 622 is fixedly sleeved on the output shaft of the control motor 621. The control gear ring 623 is fixedly sleeved on the receiving shaft 61, and the control gear ring 623 is meshed with the control gear 622, so that the receiving shaft 61 can drive the receiving plate 63 and other components to rotate smoothly.

[0030] Reference Figure 2 , Figure 3 The compaction mechanism 7 includes a rotating shaft 71 vertically rotatably connected to the mounting frame 5, and a driving member 72 for controlling the rotation of the rotating shaft 71 is provided on the mounting frame 5. A support frame 73 is fixedly connected to the end of the rotating shaft 71 away from the mounting frame 5, and two compaction rollers 74 are horizontally rotatably connected to the support frame 73. The two compaction rollers 74 are symmetrically distributed on both sides of the rotating shaft 71, and the two compaction rollers 74 are used to compact the asphalt repair material together.

[0031] The support seat 2 is controlled to move downward by the hydraulic assembly 3, and after the compaction roller 74 contacts the asphalt repair material, the driving member 72 controls the rotating shaft 71 to drive the support frame 73 and the two compaction rollers 74 to rotate. At this time, the two compaction rollers 74 can compact the asphalt repair material.

[0032] Reference Figure 2 , Figure 3 The driving member 72 includes a driving gear ring 721 fixedly mounted on the rotating shaft 71, and the control motor 621 is vertically slidably connected to the mounting frame 5. The mounting frame 5 is provided with an electric push rod 10 for driving the control motor 621 to vertically move, so that the control gear 622 is engaged with the control gear ring 623 or the driving gear ring 721. This design enables the receiving plate 63 and the receiving shaft 61 to share the same driving source, thereby improving the linkage effect between the components.

[0033] Reference Figure 2 , Figure 3 A feeding roller 11 is horizontally arranged on the support frame 73. The feeding roller 11 is located between the two compacting rollers 74 and is parallel to the compacting rollers 74. At the same time, the center of the feeding roller 11 is fixedly connected to the rotating shaft 71. An accommodating cavity 12 is arranged inside the feeding roller 11 along its axial direction. A long strip feeding port 13 is arranged at the bottom of the feeding roller 11, and the length direction of the feeding port 13 is parallel to the axial direction of the feeding roller 11.

[0034] Reference Figure 2 , Figure 3 A feed hole 14 is provided on the rotating shaft 71 along its axial direction, and the feed hole 14 is communicated with the accommodating chamber 12. A feed hopper 15 is provided at one end of the rotating shaft 71 away from the feeding roller 11, and the feed hopper 15 is communicated with the feed hole 14. At the same time, an extrusion mechanism 16 is provided in the feed hole 14, and the extrusion mechanism 16 is used to extrude the asphalt repair material into the accommodating chamber 12, so that the asphalt repair material can be discharged through the feeding port 13.

[0035] When the compaction roller 74 compacts the asphalt repair material for the road surface, the asphalt repair material is put into the feed hopper 15 and squeezed into the accommodating cavity 12 by the squeezing mechanism 16. During the rotation of the filling roller 11, the asphalt repair material in the accommodating cavity 12 can be discharged through the filling port 13. Subsequently, the compaction roller 74 rolls the discharged asphalt repair material until the asphalt repair material for the road surface is completely compacted. This design can realize the real-time filling operation of the asphalt repair agent, ensure the sufficient amount of the asphalt repair material, and improve the compactness of the asphalt repair material.

[0036] Reference Figure 2 , Figure 3 The extrusion mechanism 16 includes an extrusion auger 161 vertically rotatably connected to the feed hole 14, and a servo motor 162 is provided on the feed hopper 15, and the output shaft of the servo motor 162 is coaxially fixedly connected to the extrusion auger 161. The extrusion auger 161 and the receiving shaft 61 form a spiral conveying mechanism to achieve stable conveying of asphalt repair materials.

[0037] This embodiment also discloses a road repair method, using the above-mentioned repair device, including the following steps: S1, a circular cutting contour is cut around the damaged position of the asphalt pavement by the cutting mechanism 6, and the asphalt pavement located inside the cutting contour is dug out.

[0038] S2, judging whether the roadbed is damaged. If the roadbed is damaged, the cutting mechanism 6 cuts the roadbed along the cutting contour and removes the roadbed at the damaged position.

[0039] S3, if the road base layer is damaged, the cutting block 68 on the cutting mechanism 6 is used to cut the cutting surface of the road base layer and the asphalt pavement, so that the cutting surface of the road base layer and the asphalt pavement is inclined; if the road base layer is not damaged, the cutting block 68 on the cutting mechanism 6 is used to cut the cutting surface of the asphalt pavement, so that the cutting surface of the asphalt pavement is inclined.

[0040] S4, if the road base is damaged, first perform concrete repair on the road base, and then pour the asphalt repair material on the excavated position of the asphalt pavement. If the road base is not damaged, directly pour the asphalt repair material on the excavated position of the asphalt pavement.

[0041] S5, compacting the asphalt repair material through the compacting mechanism 7, and ensuring that the asphalt repair material is flush with the asphalt pavement.

[0042] In S3, when the cutting surface of the asphalt pavement is cut, the cutting block 68 is controlled to be located at the lower end of the asphalt pavement; when the road base and the cutting surface of the asphalt pavement are cut, the cutting block 68 is controlled to be located at the connecting position of the road base and the asphalt pavement, so as to achieve synchronous cutting of the road base and the cutting surface on the asphalt pavement and improve working efficiency.

[0043] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the present invention should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0044] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. In the description of the present invention, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention. In particular, as long as there is no structural conflict, the various technical features mentioned in each embodiment can be combined in any way. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A road repair device, characterized in that: The invention comprises a repair vehicle (1), wherein a support seat (2) is vertically slidably connected to the rear of the repair vehicle (1), a hydraulic assembly (3) for controlling the vertical movement of the support seat (2) is arranged on the repair vehicle (1), a support shaft (4) is horizontally rotatably connected to the support seat (2), an end of the support shaft (4) away from the support seat (2) is vertically fixedly connected to a mounting frame (5), a cutting mechanism (6) is arranged at one end of the mounting frame (5) and a compacting mechanism (7) is arranged at the other end, and a motor assembly (8) for controlling the rotation of the support shaft (4) is arranged on the support seat (2); The cutting mechanism (6) comprises: A receiving shaft (61) is vertically rotatably connected to the mounting frame (5); A control member (62) is disposed on the mounting frame (5) and is used to control the rotation of the receiving shaft (61); A receiving plate (63) is horizontally fixed to an end of the receiving shaft (61) away from the mounting frame (5), and the receiving plate (63) and the receiving shaft (61) are coaxial; A receiving frame (64) is arranged on a surface of the receiving plate (63) at a side away from the receiving shaft (61); A cutting drill (65) is connected to the receiving frame (64) via a hydraulic cylinder (66), and the hydraulic cylinder (66) is used to control the vertical movement of the cutting drill (65); A cutting drill bit (67) vertically arranged at the end of the drill rod of the cutting drill (65); A plurality of cutting blocks (68) are integrally formed and arranged on the side wall of the cutting drill bit (67); The plurality of cutting blocks (68) are arranged at equal intervals along the circumference of the cutting drill bit (67); the cross section of the cutting block (68) along the vertical direction is a right triangle; and after the cutting block (68) cuts the road base layer and the road surface asphalt layer, the cutting surfaces on the road base layer and the road surface asphalt layer are inclined.

2. The repair device according to claim 1, characterized in that: The receiving frame (64) is slidably connected to the receiving plate (63), and a pipe control unit (9) is provided on the receiving frame (64). The pipe control unit (9) is used to control the radial movement of the receiving frame (64) along the receiving plate (63).

3. The repair device according to claim 2, characterized in that: The pipe control unit (9) comprises a hydraulic push rod (91) fixed on the receiving plate (63), and a piston end of the hydraulic push rod (91) is fixedly connected to the receiving frame (64).

4. The repair device according to claim 1, characterized in that: The control component (62) comprises a control motor (621), a control gear (622) and a control gear ring (623); the control motor (621) is arranged on the mounting frame (5); the control gear (622) is fixedly sleeved on the output shaft of the control motor (621); the control gear ring (623) is fixedly sleeved on the receiving shaft (61), and the control gear ring (623) is meshed with the control gear (622).

5. The repair device according to claim 4, characterized in that: The compacting mechanism (7) comprises: A rotating shaft (71) is vertically rotatably connected to the mounting frame (5) and is coaxial with the receiving shaft (61); A driving member (72) for controlling the rotation of the rotating shaft (71); A support frame (73) fixed to an end of the rotating shaft (71) away from the mounting frame (5); There are two compaction rollers (74) which are horizontally rotatably connected to the support frame (73), and the two compaction rollers (74) are symmetrically distributed on both sides of the rotating shaft (71), and the two compaction rollers (74) are used to compact the asphalt repair material together.

6. The repair device according to claim 5, characterized in that: The driving member (72) comprises a driving gear ring (721) fixedly sleeved on the rotating shaft (71); the control motor (621) is vertically slidably connected to the mounting frame (5); and the mounting frame (5) is provided with an electric push rod (10) for driving the control motor (621) to move vertically, so that the control gear (622) is meshed with the control gear ring (623) or the driving gear ring (721).

7. The repair device according to claim 5, characterized in that: A feeding roller (11) is horizontally arranged on the support frame (73), the feeding roller (11) is located between the two compacting rollers (74), and the center position of the feeding roller (11) is fixedly connected to the rotating shaft (71), the inside of the feeding roller (11) is provided with a receiving cavity (12) along its axial direction, and the bottom of the feeding roller (11) is provided with a long strip feeding port (13), and the length direction of the feeding port (13) is parallel to the axial direction of the feeding roller (11); A feed hole (14) is provided on the rotating shaft (71) along its axial direction, and the feed hole (14) is connected to the accommodating chamber (12). A feed hopper (15) is provided at one end of the rotating shaft (71) away from the feeding roller (11), and the feed hopper (15) is connected to the feed hole (14). An extrusion mechanism (16) is provided in the feed hole (14), and the extrusion mechanism (16) is used to extrude the asphalt repair material into the accommodating chamber (12) so that the asphalt repair material can be discharged through the feeding port (13).

8. The repair device according to claim 7, characterized in that: The extrusion mechanism (16) comprises an extrusion auger (161) which is vertically rotatably connected to the feed hole (14); a servo motor (162) is provided on the feed hopper (15), and an output shaft of the servo motor (162) is coaxially fixedly connected to the extrusion auger (161).

9. A road repair method, using the repair device according to any one of claims 1 to 8, characterized in that: The steps include: S1, cutting a circular cutting contour around the damaged position of the asphalt pavement by means of a cutting mechanism (6), and removing the asphalt pavement located inside the cutting contour; S2, determining whether the roadbed is damaged. If the roadbed is damaged, the cutting mechanism (6) cuts the roadbed along the cutting contour and removes the roadbed at the damaged position; S3, if the road base is damaged, the cutting block (68) on the cutting mechanism (6) cuts the road base and the cutting surface of the asphalt pavement so that the cutting surfaces of the road base and the asphalt pavement are inclined; if the road base is not damaged, the cutting block (68) on the cutting mechanism (6) cuts the cutting surface of the asphalt pavement so that the cutting surface of the asphalt pavement is inclined; S4, if the road base is damaged, first perform concrete repair on the road base, and then pour asphalt repair material on the excavated position of the asphalt pavement; if the road base is not damaged, directly pour the asphalt repair material on the excavated position of the asphalt pavement; S5, compacting the asphalt repair material through the compacting mechanism (7) and ensuring that the asphalt repair material is flush with the asphalt road surface.

10. The repair method according to claim 9, characterized in that: In S3, when the cutting surface of the asphalt pavement is cut, the cutting block (68) is controlled to be located at the lower end of the asphalt pavement; when the road base and the cutting surface of the asphalt pavement are cut, the cutting block (68) is controlled to be located at the connection position of the road base and the asphalt pavement, so as to achieve synchronous cutting of the road base and the cutting surface on the asphalt pavement.

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