Asphalt road pavement repairing device and repairing method

Abstract

The invention discloses an asphalt road pavement repairing device and method, and belongs to the technical field of pavement repairing devices.The asphalt road pavement repairing device comprises two rails and a supporting plate arranged between the two rails, a hopper is fixedly installed at the top of the supporting plate, and a material guiding frame aligned with the hopper is installed on the supporting plate; when the device is used, a worker only needs to place two magnets at the two ends of an area, filled with asphalt, in a crack, a supporting plate can quickly pass through the area through cooperation of a second gear and a second rack, on one hand, waste of asphalt materials can be avoided, and on the other hand, the asphalt material filling efficiency can be improved; and after the supporting plate moves out of the area, the supporting plate slowly moves through the cooperation of the first gear and the first rack, so that the asphalt material can be conveniently filled in other areas of the crack.

Description

Technical Field

[0001] The present invention relates to the technical field of road surface repairing devices, and in particular to an asphalt road surface repairing device and a repairing method. Background Art

[0002] When repairing road cracks, construction workers pour molten asphalt concrete into the box and drag the handle to move the box along the extension direction of the road cracks. The asphalt concrete in the box seeps out from the grille structure at the bottom of the box and is spread on the road surface. After the asphalt concrete hardens, the repair of the road cracks is completed.

[0003] Chinese patent CN218667063U discloses an operating device for repairing asphalt concrete pavement, which is provided with a plurality of through grooves on the bottom surface of a box body, in which baffles are inserted, the baffles extend to the outside of the grooves, and hinges for sealing the grooves are installed outside the grooves; when the gaps in the pavement are narrow, the baffles are inserted into the through grooves, the number of through groove openings is reduced, the flow rate of asphalt concrete is reduced, the area of ​​asphalt concrete laid on the uncracked pavement is reduced, and accurate repair of the pavement gaps is achieved.

[0004] The above-mentioned device fills the cracks with asphalt material by moving the box along the cracks. However, during actual use, due to the differences in width and depth of different parts of the cracks, some areas of the cracks will be filled first. The above-mentioned structure makes it difficult to adjust the moving speed of the box according to different areas of the cracks, which affects the progress of road repair. In summary, the above-mentioned device still has room for improvement.

[0005] Therefore, it is necessary to provide an asphalt road pavement repair device and a repair method to solve the above technical problems. Summary of the invention

[0006] The object of the present invention is to provide an asphalt road pavement repair device and a repair method to solve the problem that the existing device proposed in the above background technology fills the cracks with asphalt material by moving a box along the cracks, but in actual use, due to the differences in width and depth of different parts of the cracks, some areas of the cracks will be filled first, and it is difficult to adjust the moving speed of the box according to different areas of the cracks through the above structure.

[0007] Based on the above ideas, the present invention provides the following technical solutions: an asphalt road pavement repair device, comprising two tracks and a support plate arranged between the two tracks, a hopper is fixedly installed on the top of the support plate, a material guide frame aligned with the hopper is installed on the support plate, a rotating shaft is installed on the support plate, a first gear and a second gear are sleeved on the outer side of the rotating shaft, and a first rack meshing with the first gear and a second rack meshing with the second gear are fixedly arranged on the track; A sliding rod is elastically mounted on the rotating shaft, and a magnetic block is fixedly embedded at the bottom end surface of the sliding rod. A clamping assembly that cooperates with the first gear and the second gear is provided on the rotating shaft. A limiting rod is coaxially arranged on the sliding rod, and the limiting rod is fixedly connected to the rotating shaft, and the sliding rod and the limiting rod are cooperated with each other through the limiting assembly. During the reciprocating movement of the sliding rod in the vertical direction, the sliding rod can be driven to rotate intermittently through the set limiting assembly. During this process, the clamping assembly can alternately cooperate with the first gear and the second gear.

[0008] As a further solution of the present invention: the clamping assembly includes a first clamping block and a second clamping block elastically arranged on the outer circumferential wall of the rotating shaft, the first clamping block is located on the inner side of the first gear, and the second clamping block is located on the inner side of the second gear, and multiple notches are opened on the inner walls of the first gear and the second gear.

[0009] As a further solution of the present invention: a first magnetic strip is fixedly embedded in an end surface of the first card block close to the sliding rod, and a second magnetic strip is fixedly embedded in an end surface of the second card block close to the sliding rod. The first magnetic strip and the second magnetic strip have different magnetic poles on the side close to the sliding rod. A first magnetic plate and a second magnetic plate are fixedly embedded in the outer peripheral wall of the sliding rod. The number of the first magnetic plate and the second magnetic plate is set to multiple, and the outer side walls of the first magnetic plate and the second magnetic plate have different magnetic poles. The first magnetic plate and the second magnetic plate are staggered. The first magnetic plate has the same magnetic pole on the side opposite to the first magnetic strip, and the second magnetic plate has different magnetic poles on the side opposite to the first magnetic strip.

[0010] As a further solution of the present invention: the limit assembly includes a limit block fixedly matched with the sliding rod, and the outer peripheral wall of the limit rod is provided with multiple oblique grooves and multiple straight grooves, the oblique grooves are connected end to end with the straight grooves, and the limit block can slide cyclically along the oblique grooves and the straight grooves.

[0011] As a further solution of the present invention: a first inclined plate is elastically provided at the junction of the top end of the inclined groove and the top end of the straight groove, the first inclined plate is hinged to the limit rod, and the position where the first inclined plate and the limit rod are hinged is located on the side of the first inclined plate away from the straight groove, and a second inclined plate is elastically provided at the junction of the bottom end of the straight groove and the bottom end of the inclined groove, the second inclined plate is hinged to the limit rod, and the position where the second inclined plate and the limit rod are hinged is located on the side of the second inclined plate away from the inclined groove.

[0012] As a further solution of the present invention: a plurality of insertion holes are evenly arranged on a side of the track opposite to the rotating shaft.

[0013] As a further solution of the present invention: a mounting hole is provided on the bottom end surface of the rotating shaft, and the sliding rod is slidably arranged in the mounting hole.

[0014] As a further solution of the present invention: an annular plate is rotatably mounted on the top end surface of the slide rod, and a second spring is fixedly arranged between the annular plate and the top wall of the mounting hole.

[0015] As a further solution of the present invention: a through slot is provided on the support plate, and the material guiding frame is located at the through slot.

[0016] A method for repairing an asphalt road pavement using the above-mentioned asphalt road pavement repair device comprises the following steps: laying tracks on both sides of a pavement crack and installing a support plate between the two tracks; driving the support plate to move slowly on the track by the cooperation of a first gear and a first rack, and guiding the asphalt in the hopper into the pavement crack by a material guide frame; and driving the support plate to quickly pass through the asphalt-filled area in the crack by the cooperation of a second gear and a second rack.

[0017] Compared with the prior art, the beneficial effect of the present invention is that when the device is in use, the staff only needs to place two magnets at the two ends of the area filled with asphalt in the crack, and the support plate can quickly pass through this area through the cooperation of the second gear and the second rack. On the one hand, it can avoid the waste of asphalt material, and on the other hand, it can improve the efficiency of asphalt material filling. When the support plate moves out of this area, the support plate moves slowly through the cooperation of the first gear and the first rack, which is conducive to filling the asphalt material into other areas of the crack. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described below in conjunction with the accompanying drawings and embodiments: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the first rack and the second rack of the present invention; Figure 3 It is a schematic diagram of the structure of the first gear and the second gear of the present invention; Figure 4 is a cross-sectional view of the rotating shaft and the track of the present invention; Figure 5 The present invention Figure 4 A schematic diagram of the enlarged structure at point A; Figure 6 The present invention Figure 5 A schematic diagram of the enlarged structure at B; Figure 7 It is a schematic diagram of the straight slot and the inclined slot structure of the present invention; Figure 8 It is a schematic diagram of the structure of the first inclined plate and the second inclined plate of the present invention; Fig. 9 is a distribution diagram of the first magnetic plate and the second magnetic plate of the present invention; Fig.10 It is a schematic diagram of the material guide frame structure of the present invention; Fig.11 It is a schematic diagram of pavement cracks of the present invention.

[0019] In the figure: 1, hopper; 2, support plate; 3, transmission unit; 4, track; 401, jack; 402, first rack; 403, second rack; 5, guide frame; 501, guide block; 6, slider; 7, shaft; 701, first gear; 702, second gear; 8, annular plate; 9, limit rod; 901, inclined groove; 902, straight groove; 10, notch; 11, second clamping block; 1101, second magnetic strip; 12, slide bar; 1201, magnetic block; 1202, limit block; 13, bump; 14, first clamping block; 1401, first magnetic strip; 15, first inclined plate; 16, second inclined plate; 17, first magnetic plate; 18, second magnetic plate; 19, control switch. DETAILED DESCRIPTION

[0020] like Figure 1-Figure 10 As shown, an asphalt road pavement repair device and repair method include two rails 4 and a support plate 2 arranged between the two rails 4, the support plate 2 can move along the length direction of the rails 4, and a hopper 1 is fixedly installed on the top of the support plate 2. Specifically, a through groove is opened on the support plate 2, and a material guide frame 5 is installed at the through groove. The material guide frame 5 can elastically cooperate with the support plate 2, and the bottom end of the above-mentioned hopper 1 is fixedly arranged inside the through groove. In actual use, the two rails 4 are fixed to the two sides of the crack on the road surface, and then the heated asphalt material is put into the hopper 1 (of course, a heating unit can also be installed on the hopper 1 to assist in heating the asphalt material). The support plate 2 is driven to move along the length direction of the rail 4 to fill the asphalt material along the length direction of the crack, so that the asphalt material can flow into the crack, and the crack can be fully filled by the reciprocating movement of the support plate 2 on the top of the rail 4.

[0021] In order to drive the support plate 2 to slide on the track 4, in this solution, a rotating shaft 7 is installed on the support plate 2, and a first gear 701 and a second gear 702 are sleeved on the outer side of the rotating shaft 7. A first rack 402 meshing with the first gear 701 and a second rack 403 meshing with the second gear 702 are fixedly arranged on the inner side of the track 4 along its length direction. When the rotating shaft 7 rotates, the support plate 2 can be driven to slide on the track 4 through the cooperation between the first gear 701 and the first rack 402 or through the cooperation between the second gear 702 and the second rack 403. Specifically, the speed at which the support plate 2 is driven to move by the cooperation between the second gear 702 and the second rack 403 is at least twice the speed at which the support plate 2 is driven to move by the cooperation between the first gear 701 and the first rack 402.

[0022] In a specific application, since the width or depth of each part of the crack is different, in the process of filling the crack, the shallower or narrower part of the crack will be filled first. In this case, if the support plate 2 still moves at the previous speed, on the one hand, it will affect the filling efficiency, and on the other hand, it will cause waste of asphalt materials. In order to solve this problem, in this solution, a slide bar 12 is elastically mounted on the rotating shaft 7, and a clamping assembly matching the first gear 701 and the second gear 702 is arranged on the rotating shaft 7. A limit rod 9 is coaxially arranged at the slide bar 12. The limit rod 9 is fixedly connected to the rotating shaft 7, and the slide bar 12 cooperates with the limit rod 9 through a limit assembly. During the reciprocating movement of the slide bar 12 in the vertical direction, the limit assembly can drive the slide bar 12 to rotate intermittently. During this process, the clamping assembly alternately cooperates with the first gear 701 and the second gear 702, thereby changing the speed at which the support plate 2 moves relative to the track 4. Specifically, when the support plate 2 moves to a narrower or shallower part of the crack, the support plate 2 can pass through this area at a faster speed, thereby avoiding waste of asphalt material.

[0023] The above-mentioned clamping assembly includes a first clamping block 14 and a second clamping block 11 arranged on the outer peripheral wall of the rotating shaft 7. The first clamping block 14 and the second clamping block 11 are elastically matched with the rotating shaft 7. Specifically, the first clamping block 14 is located at the inner side of the first gear 701, and the second clamping block 11 is located at the inner side of the second gear 702. A plurality of notches 10 are provided on the inner walls of the first gear 701 and the second gear 702. Specifically, when the first clamping block 14 pops out and is inserted into the notch 10 on the first gear 701, the first gear 701 can be driven to rotate during the rotation of the rotating shaft 7. At this time, the support plate 2 can be driven to slide on the track 4 through the engagement of the first gear 701 and the first rack 402. When the second clamping block 11 cooperates with the second gear 702, the engagement of the second gear 702 and the second rack 403 can be used to drive the support plate 2 to move on the track 4 at a faster speed.

[0024] Furthermore, a first magnetic strip 1401 is fixedly embedded in an end surface of the first clamping block 14 close to the slide bar 12, and a second magnetic strip 1101 is fixedly embedded in an end surface of the second clamping block 11 close to the slide bar 12. The first magnetic strip 1401 and the second magnetic strip 1101 have different magnetic poles on their sides close to the slide bar 12. Reference Fig. 9As shown, a plurality of groups of first magnetic plates 17 and second magnetic plates 18 are fixedly embedded on the outer peripheral wall of the slide bar 12, and the outer peripheral walls of the first magnetic plates 17 and the second magnetic plates 18 have different magnetic poles. The plurality of first magnetic plates 17 and the second magnetic plates 18 are alternately distributed on the outer peripheral wall of the slide bar 12. In addition, the first magnetic plate 17 has the same magnetic pole on a side opposite to the first magnetic strip 1401, while the second magnetic plate 18 has a different magnetic pole on a side opposite to the first magnetic strip 1401.

[0025] The above-mentioned limit assembly includes a limit block 1202 fixedly matched with the slide bar 12, a cylindrical hole is provided on the top end surface of the slide bar 12, and the limit block 1202 is fixedly arranged on the inner wall of the cylindrical hole, and multiple groups of inclined grooves 901 and straight grooves 902 are provided on the outer peripheral wall of the limit rod 9, and the inclined grooves 901 and the straight grooves 902 are connected. Multiple groups of inclined grooves 901 and straight grooves 902 are staggered and distributed on the outer wall of the slide bar 12, and multiple inclined grooves 901 and straight grooves 902 are connected end to end in sequence. Specifically, when the limit block 1202 moves downward along the inclined groove 901, it can drive the slide bar 12 to rotate; Reference Figure 8 As shown, a first inclined plate 15 is elastically provided at the top junction of the inclined groove 901 and the straight groove 902. The first inclined plate 15 is hinged to the limit rod 9, and the position where the first inclined plate 15 is hinged to the limit rod 9 is located on the side of the first inclined plate 15 away from the straight groove 902. Through this structure, in the initial state, the first inclined plate 15 can only rotate counterclockwise relative to the limit rod 9. When the limit block 1202 moves upward from the straight groove 902 to the first inclined plate 15, it will drive the first inclined plate 15 to deflect. After the limit block 1202 passes over the first inclined plate 15, the guiding effect of the first inclined plate 15 can cause the limit block 1202 to slide along the inclined groove 901. Similarly, A second inclined plate 16 is elastically provided at the bottom junction of the straight groove 902 and the inclined groove 901. The second inclined plate 16 is hinged to the limit rod 9, and the hinged position of the second inclined plate 16 and the limit rod 9 is located on the side of the second inclined plate 16 away from the inclined groove 901. When the second inclined plate 16 is in the initial state, the second inclined plate 16 rotates clockwise relative to the limit rod 9. When the limit block 1202 moves downward along the inclined groove 901 to the second inclined plate 16, it can drive the second inclined plate 16 to deflect clockwise. After the limit block 1202 passes over the second inclined plate 16, the guide effect of the second inclined plate 16 enables the limit block 1202 to slide along the straight groove 902.

[0026] Reference Figure 5 As shown, a magnetic block 1201 is fixedly embedded at the bottom end surface of the slide rod 12 .

[0027] Reference Figure 1-Figure 2 As shown, a plurality of insertion holes 401 are evenly provided on a side of the track 4 opposite to the rotating shaft 7. Fig.11 The cracks shown, where Fig.11 The middle ab section is the first section in the crack to be filled. At this time, the staff can insert two cylindrical magnets into the sockets 401 near point a and point b. When the shaft 7 on the support plate 2 gradually moves to point a, since the magnet in the socket 401 and the side opposite to the magnetic block 1201 at the bottom of the slide bar 12 have different magnetic poles, the magnet's suction force on the magnetic block 1201 can drive the slide bar 12 to move downward (in actual use, the diameter of the magnet in the socket 401 should be larger than the outer diameter of the shaft 7, so that in the process of the magnet and the magnetic block 1201 cooperating, The magnet in the socket 401 will not move out of the socket 401), so that the limit block 1202 moves downward along the inclined slot 901. Since the inclined slot 901 is in an inclined state, the squeezing force of the inclined slot 901 on the limit block 1202 can drive the slide bar 12 to deflect. When the limit block 1202 moves downward and passes over the second inclined plate 16, the slide bar 12 stops rotating. In the initial state, the first magnetic plate 17 on the outer wall of the slide bar 12 is aligned with the first block 14 and the second block 11. When the limit block 1202 is at the top of the inclined slot 901, the first magnetic plate 17 on the outer wall of the slide bar 12 is aligned with the first block 14 and the second block 11. After sliding to the bottom end of the inclined slot 901, the slide bar 12 rotates by a certain angle (here, the rotation angle of the slide bar 12 is further explained: specifically, when the total number of the first magnetic plate 17 and the second magnetic plate 18 is n, the angle of rotation of the slide bar 12 driven by the limit block 1202 each time it slides along the inclined slot 901 is (360 / n) degrees), so that the second magnetic plate 18 on the outer wall of the slide bar 12 moves to a state of being in line with the first card block 14 and the second card block 11. At this time, the suction force of the second magnetic plate 18 on the first magnetic strip 1401 can drive the first card block 14 to The second gear 702 is moved in a direction close to the slide bar 12 and finally disengaged from the notch 10 on the first gear 701. At the same time, the repulsive force of the second magnetic plate 18 on the second magnetic strip 1101 can drive the second clamping block 11 to move in a direction away from the slide bar 12. When one end of the second clamping block 11 is inserted into the notch 10 on the second gear 702, the rotating shaft 7 can drive the second gear 702 to rotate during the rotation process. The cooperation between the second gear 702 and the second rack 403 can significantly increase the moving speed of the support plate 2 on the track 4, so that the support plate 2 can quickly move from the track 4. Fig.11The slide bar 12 moves from point a to point b. As the shaft 7 gradually leaves point a, the slide bar 12 can be reset upward. During this process, the limit block 1202 will slide upward along the straight groove 902. The cooperation between the straight groove 902 and the limit block 1202 can keep the slide bar 12 stable, so that the slide bar 12 rotates synchronously with the shaft 7. Similarly, when the support plate 2 moves to point b, the shaft 7 on the support plate 2 will gradually overlap with the magnet in the socket 401 near point b. According to the above description, the slide bar 12 can drive the slide bar 12 to move downward relative to the limit rod 9 during the downward movement, so that the limit block 1202 can move upward again along the inclined groove 901. The first magnetic plate 17 on the slide bar 12 is aligned with the first clamping block 14 and the second clamping block 11. At this time, the suction force of the first magnetic plate 17 on the second magnetic strip 1101 can cause one end of the second clamping block 11 to disengage from the second gear 702. The repulsion of the first magnetic plate 17 on the first magnetic strip 1401 can drive the first clamping block 14 to move away from the slide bar 12 and finally cooperate with the first gear 701. As a result, the rotating shaft 7 drives the support plate 2 to move slowly on the track 4 again through the cooperation between the first gear 701 and the first rack 402, which is conducive to filling the asphalt material into the crack.

[0028] To sum up, when using this device, the staff only needs to place two magnets at the two ends of the area filled with asphalt in the crack, and the support plate 2 can quickly pass through this area through the cooperation of the second gear 702 and the second rack 403. On the one hand, it can avoid the waste of asphalt material, and on the other hand, it can improve the efficiency of asphalt material filling. When the support plate 2 moves out of this area, the support plate 2 moves slowly through the cooperation of the first gear 701 and the first rack 402, which is conducive to filling the asphalt material into other areas of the crack.

[0029] like Figure 1 As shown, in order to drive the rotating shaft 7 to rotate, the present solution is provided with a motor on the supporting plate 2, and the motor is transmitted and cooperated with the rotating shaft 7 through a transmission unit 3, and the transmission unit 3 can be a structure such as a chain or a belt. In actual use, travel switches can be installed on both sides of the supporting plate 2, and the travel switches are electrically coordinated with the motor. When the motor moves to the end of the track 4, the running direction of the motor can be changed through the travel switch. Of course, it is a mature technical means in the electrical field, and its working principle will not be elaborated here. In actual operation, the operation of the motor can also be manually controlled by the staff.

[0030] Reference Figure 2As shown, the cross-section of the track 4 can be "J"-shaped as a whole, the first rack 402 and the second rack 403 are staggered on the vertical plane, a through slide groove can be opened on the support plate 2, a slider 6 is slidably arranged in the slide groove, the above-mentioned rotating shaft 7 passes through the slider 6 and rotates with the slider 6 through a bearing, the cross-section of the slider 6 can be T-shaped, and the slider 6 can be fixedly installed on the support plate 2 by bolts. This structure is conducive to adjusting the position of the rotating shaft 7.

[0031] Combination Figure 2 , Fig.10 As shown, a guide groove is opened on the inner wall of the through groove, and a guide block 501 that slides with the guide groove is fixedly arranged on the material guide frame 5, and a limit spring is fixedly arranged between the guide block 501 and the end face of the guide groove. Through this structure, the elastic cooperation between the material guide frame 5 and the support plate 2 can be achieved, so that the material guide frame 5 can move in contact with the ground, and rollers are installed at the two ends of the bottom of the support plate 2, which is conducive to the movement of the auxiliary support plate 2.

[0032] Reference Figure 5 As shown, a mounting hole is provided on the bottom end face of the rotating shaft 7, and the sliding rod 12 is slidably arranged in the mounting hole. A through hole connected to the mounting hole is provided on the peripheral wall of the rotating shaft 7. The first clamping block 14 and the second clamping block 11 are respectively located in the two through holes, and a strip groove is provided on the inner wall of the through hole, and the outer side faces of the first clamping block 14 and the second clamping block 11 are fixedly provided with protrusions 13. The protrusions 13 on the first clamping block 14 and the second clamping block 11 slide in the strip grooves on the inner walls of the two through holes respectively, and a first spring is fixedly provided between the protrusion 13 and the inner end face of the corresponding strip groove. Through this structure, the elastic cooperation between the first clamping block 14 and the second clamping block 11 and the rotating shaft 7 can be achieved.

[0033] The top end surface of the slide rod 12 is rotatably mounted with an annular plate 8. In actual use, the slide rod 12 and the annular plate 8 can be connected by a tapered roller bearing, and a second spring is fixedly arranged between the annular plate 8 and the top wall of the mounting hole. Through this structure, the slide rod 12 can elastically cooperate with the rotating shaft 7, and the slide rod 12 can rotate relative to the limit rod 9.

[0034] Reference Figure 5 As shown, a control switch 19 matched with the above-mentioned motor can be installed at the bottom end of the inner part of the mounting hole. The control switch 19 can be connected to the motor through a signal. When the slide bar 12 moves downward and contacts the control switch 19, the motor can be temporarily stopped, which is conducive to the first card block 14 disengaging from the first gear 701 or the second card block 11 disengaging from the second gear 702. Of course, this is a mature technical means in the electrical field, and the specific connection between the control switch 19 and the motor is not elaborated here.

[0035] Reference Figure 8 As shown, tension springs are fixedly arranged between a side surface of the first inclined plate 15 close to the straight groove 902 and the slide bar 12 , and between a side surface of the second inclined plate 16 close to the inclined groove 901 and the slide bar 12 .

Claims

1. An asphalt road pavement repair device, comprising two tracks and a support plate arranged between the two tracks, a hopper is fixedly installed on the top of the support plate, a material guide frame aligned with the hopper is installed on the support plate, and a rotating shaft is installed on the support plate, characterized in that: The outer side of the rotating shaft is sleeved with a first gear and a second gear, and the track is fixedly provided with a first rack meshing with the first gear and a second rack meshing with the second gear; A sliding rod is elastically mounted on the rotating shaft, and a magnetic block is fixedly embedded at the bottom end surface of the sliding rod. A clamping assembly that cooperates with the first gear and the second gear is provided on the rotating shaft. A limiting rod is coaxially arranged on the sliding rod, and the limiting rod is fixedly connected to the rotating shaft, and the sliding rod and the limiting rod are cooperated with each other through the limiting assembly. During the reciprocating movement of the sliding rod in the vertical direction, the sliding rod can be driven to rotate intermittently through the set limiting assembly. During this process, the clamping assembly can alternately cooperate with the first gear and the second gear.

2. The asphalt road pavement repairing device according to claim 1, characterized in that: The clamping assembly includes a first clamping block and a second clamping block elastically arranged on the outer peripheral wall of the rotating shaft. The first clamping block is located at the inner side of the first gear, and the second clamping block is located at the inner side of the second gear. Multiple notches are opened on the inner walls of the first gear and the second gear.

3. The asphalt road pavement repairing device according to claim 2, characterized in that: A first magnetic strip is fixedly embedded in an end surface of the first clamping block close to the sliding rod, and a second magnetic strip is fixedly embedded in an end surface of the second clamping block close to the sliding rod. The first magnetic strip and the second magnetic strip have different magnetic poles on the side close to the sliding rod. A first magnetic plate and a second magnetic plate are fixedly embedded in the outer peripheral wall of the sliding rod. The number of the first magnetic plate and the second magnetic plate is set to be multiple, and the outer side walls of the first magnetic plate and the second magnetic plate have different magnetic poles. The first magnetic plate and the second magnetic plate are staggered, and the first magnetic plate has the same magnetic pole on a side opposite to the first magnetic strip, and the second magnetic plate has different magnetic poles on a side opposite to the first magnetic strip.

4. The asphalt road pavement repairing device according to claim 3, characterized in that: The limiting assembly includes a limiting block fixedly matched with the sliding rod, and a plurality of oblique grooves and a plurality of straight grooves are opened on the outer peripheral wall of the limiting rod. The oblique grooves are connected end to end with the straight grooves, and the limiting block can slide cyclically along the oblique grooves and the straight grooves.

5. The asphalt road pavement repairing device according to claim 4, characterized in that: A first inclined plate is elastically provided at the junction of the top end of the inclined groove and the top end of the straight groove, the first inclined plate is hinged to the limiting rod, and the position where the first inclined plate and the limiting rod are hinged is located on the side of the first inclined plate away from the straight groove, and a second inclined plate is elastically provided at the junction of the bottom end of the straight groove and the bottom end of the inclined groove, the second inclined plate is hinged to the limiting rod, and the position where the second inclined plate and the limiting rod are hinged is located on the side of the second inclined plate away from the inclined groove.

6. The asphalt road pavement repairing device according to claim 1, characterized in that: A plurality of insertion holes are evenly arranged on a side of the track opposite to the rotating shaft.

7. The asphalt road pavement repairing device according to claim 1, characterized in that: The bottom end surface of the rotating shaft is provided with a mounting hole, and the sliding rod is slidably arranged in the mounting hole.

8. The asphalt road pavement repairing device according to claim 7, characterized in that: An annular plate is rotatably mounted on the top end surface of the slide rod, and a second spring is fixedly arranged between the annular plate and the top wall of the mounting hole.

9. The asphalt road pavement repairing device according to claim 1, characterized in that: The support plate is provided with a through slot, and the material guide frame is located at the through slot.

10. A method for repairing an asphalt road pavement using the asphalt road pavement repairing device as claimed in any one of claims 1 to 9, characterized in that: The method comprises the following steps: laying tracks on both sides of road cracks and installing a support plate between the two tracks; driving the support plate to move slowly on the track by the cooperation of a first gear and a first rack, and guiding the asphalt in the hopper into the road cracks by a material guide frame; and driving the support plate to quickly pass through the asphalt-filled area in the cracks by the cooperation of a second gear and a second rack.

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