A road surface crack repairing device

Abstract

The application provides a road surface crack repairing device, which is characterized in that a frame body is arranged on the vehicle body, a crack sectioning mechanism is arranged at the front end of the frame body, a crack filling mechanism is arranged between the crack sectioning mechanism and the vehicle body, the crack filling mechanism comprises an auger conveying structure and a material conveying structure, the auger conveying structure comprises a conveying shell, a material conveying port is arranged on the side wall of the conveying shell opposite to the vehicle body, a conveying spiral shaft is arranged in the conveying shell, the conveying shell is fixed to the vehicle body through a cross rod, the upper end of the conveying spiral shaft is rotatably connected to the frame body, a first gear is fixedly connected to the upper end of the conveying spiral shaft, the first gear is connected to a power member, and the power member provides rotating power to the conveying spiral shaft through the first gear; the material conveying structure comprises a material conveying machine, and the material conveying machine is connected to the material inlet of the upper end of the conveying shell through a material conveying main pipe. The crack filling mechanism of the application can directly fill the repairing material to the crack through the auger conveying structure which can penetrate into the crack, so that the hollow drum phenomenon in the crack can be avoided as much as possible.

Description

Technical Field

[0001] This invention belongs to the field of traffic engineering construction, and specifically relates to a road surface crack repair device. Background Technology

[0002] Traffic engineering construction includes the construction and maintenance of traffic pavements. Asphalt pavements have advantages such as shock absorption, corrosion resistance, water impermeability, and long service life. Therefore, most highway pavements are paved with asphalt. However, asphalt pavements are also prone to cracking. These cracks are often irregular in shape and need to be repaired in time. Otherwise, they will not only affect the smooth driving of vehicles, but also allow rainwater to enter the pavement and damage the roadbed.

[0003] The usual method for repairing cracks in asphalt pavement is to fill the cracks with filler material. At most, the cracks are repaired before filling to facilitate the filling. However, because the cracks are relatively narrow, the interior of the filler material may become hollow. Even if it is compacted after filling, the narrowness of the crack and the irregular sidewalls make it difficult to effectively eliminate the hollow structure inside the filler material. This makes it difficult to repair the crack properly and may lead to cracking again later. Summary of the Invention

[0004] The purpose of this invention is to overcome the problems existing in the prior art and provide a road crack repair device. The device directly mills the crack through a crack cutting mechanism to form a groove with relatively regular sidewalls that can be passed through by an auger conveying structure. At the same time, the auger conveying structure directly fills the groove with repair material, thereby achieving the purpose of filling the entire crack.

[0005] By using a longitudinal auger conveyor structure that extends deep into the crack, the repair material is directly filled from inside the crack. Through the filler compaction mechanism, the material output component, and the filler compaction mechanism, the occurrence of voids inside the crack can be avoided as much as possible.

[0006] The technical solution of the present invention is: a road surface crack repair device, comprising a vehicle body, a frame mounted on the vehicle body, a crack cutting mechanism at the front end of the frame, a crack filling mechanism between the crack cutting mechanism and the vehicle body, the crack filling mechanism being connected to the frame, and the crack filling mechanism comprising:

[0007] The auger conveyor structure includes a conveyor shell extending longitudinally into a crack cut by a crack cutting mechanism. A longitudinal material inlet is provided on the side wall of the conveyor shell opposite to the vehicle body. A conveying screw shaft is installed inside the conveyor shell. The conveyor shell is fixed to the vehicle body via a crossbar. The upper end of the conveying screw shaft extends out of the inlet at the upper end of the conveyor shell and is rotatably connected to the frame. A first gear is fixedly connected to the upper end of the conveying screw shaft. The first gear is connected to a power component, and the power component provides rotational power to the conveying screw shaft through the first gear.

[0008] The material conveying structure includes a material conveyor located inside the vehicle body, which is connected to the inlet at the upper end of the conveying shell via a material conveying main pipe.

[0009] The aforementioned crack cutting mechanism includes a drill-milling cutter that drills into the crack and mills along the crack direction. The drill-milling cutter is rotatably connected to the frame, and the upper end of the drill-milling cutter is connected to the output shaft of the power motor through a coupling. The upper end of the drill-milling cutter is also fixedly connected to a second gear, which meshes with the first gear as a power component.

[0010] A filler compaction mechanism is also provided between the aforementioned crack filling mechanism and the vehicle body. The filler compaction mechanism includes a horizontal rotating shaft, which is rotatably connected to the crossbar via a rotating connecting seat. Multiple elastic elements are connected to the horizontal rotating shaft along its circumference. Each elastic element is connected to a blade, and each blade is located on the same plane and is perpendicular to the horizontal rotating shaft. The blade is used to apply vibration and impact force to the filler material in the crack when the horizontal rotating shaft rotates, thereby eliminating the voids inside the filler. The lower ends of the horizontal rotating shaft and the vertical rotating shaft are connected through a worm gear structure. The vertical rotating shaft is rotatably connected to the frame, and a third gear is fixedly and coaxially connected to the vertical rotating shaft. The third gear meshes with the first gear.

[0011] The aforementioned packing compaction mechanism and the vehicle body are also provided with a material replenishment output component, which is connected to the crossbar and connected to the main conveying pipe through a material replenishment pipe; the material replenishment output component and the vehicle body are also provided with a packing compaction mechanism connected to the vehicle body.

[0012] The aforementioned material output component includes a material output cylinder, which is fixed to the crossbar. The upper end of the material output cylinder is connected to the material supply pipe. The material output cylinder is equipped with a solenoid valve for controlling its material output. The solenoid valve is signal-connected to a solenoid valve controller. The control button of the solenoid valve controller is located on a push handle, which is located at the rear end of the vehicle body.

[0013] The aforementioned material output component includes a fixed cylinder, which is fixed to the crossbar by a connector. The upper end of the fixed cylinder is connected to the material supply pipe, and a movable cylinder is inserted into the lower end of the fixed cylinder. The interiors of the fixed cylinder and the movable cylinder are connected. The side wall of the movable cylinder has a discharge port. The lower end of the movable cylinder is closed and a counterweight is fixed inside the lower end. The lower end of the movable cylinder is also equipped with a caster wheel. An anti-detachment structure is also provided between the fixed cylinder and the movable cylinder to prevent them from separating.

[0014] The aforementioned anti-detachment structure includes a longitudinal groove on the outer side wall of the movable cylinder and a slider on the inner side wall of the fixed cylinder. The longitudinal groove is slidably connected to the slider, and both the upper and lower ends of the longitudinal groove are provided with blocking edges to prevent the slider from detaching from the longitudinal groove.

[0015] The aforementioned vehicle body includes a lifting seat located at its lower end, which is used to lift the vehicle body, thereby lifting the entire frame.

[0016] The aforementioned integrated drill-milling cutter includes a drill bit located at its lower end. Milling creates relatively regular sidewalls.

[0017] The beneficial effects of the present invention are as follows: The present invention provides a road surface crack repair device. Before repairing the road surface crack, a receiving channel extending into the ground is pre-opened at one end of the crack. A crack cutting mechanism and an auger conveying structure are inserted through the receiving channel. The crack cutting mechanism directly mills the crack to form a groove 22 with relatively regular sidewalls that can be passed through by the auger conveying structure. At the same time, the auger conveying structure directly fills the groove 22 with repair material, thereby achieving the purpose of filling the entire crack. Through the filling compaction mechanism, the material output component, and the filling compaction mechanism, the occurrence of hollow areas inside the crack can be avoided as much as possible. Specifically, the longitudinal feed port on the side wall of the conveyor shell of the auger conveyor structure of the present invention can promptly replenish the filler inside the crack, thereby minimizing the occurrence of voids inside the filler at the first moment. Before filling the crack, the crack is pre-milled by the crack cutting mechanism, which makes the crack as regular as possible and removes loose particles on the contact surface between the crack and the filler, thus facilitating the auger conveyor structure to enter the crack and promoting the adhesion between the filler and the crack sidewall. The present invention further eliminates voids inside the filler by elastic vibration compaction of the filler compaction mechanism, thereby ensuring that the crack is fully filled by the filler. The replenishment output component allows new filler to fill any collapsed areas above the filler compacted by the filler compaction mechanism, and then compaction is achieved by the filler compaction mechanism. The present invention uses a single power motor to drive multiple mechanisms simultaneously, reducing the complexity of the entire device and improving the reliability of the device operation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the packing compaction mechanism of the device of the present invention;

[0020] Figure 3 This is a schematic diagram of one type of material output component of the present invention. Detailed Implementation

[0021] The following detailed description of a specific embodiment of the present invention is provided in conjunction with the accompanying drawings. However, it should be understood that the scope of protection of the present invention is not limited to the specific embodiment.

[0022] See Figures 1-3 This embodiment provides a road surface crack repair device, including a vehicle body 1, a frame 2 on the vehicle body 1, a crack cutting mechanism 4 at the front end of the frame 2, and a crack filling mechanism between the crack cutting mechanism 4 and the vehicle body 1. The crack filling mechanism is connected to the frame 2. The crack filling mechanism includes an auger conveying structure and a material conveying structure. The auger conveying structure includes a conveying shell 5 extending longitudinally into the crack cut by the crack cutting mechanism 4. The side wall of the conveying shell 5 opposite to the vehicle body 1 has a longitudinal material conveying port 25. A conveying screw shaft 6 is provided inside the conveying shell 5. The conveying shell 5 is fixed to the vehicle body 1 by a crossbar 23. The upper end of the conveying screw shaft 6 extends out of the material inlet at the upper end of the conveying shell 5 and is rotatably connected to the frame 2. A first gear 13 is fixedly connected to the upper end of the conveying screw shaft 6. The first gear 13 is connected to a power component, and the power component provides rotational power to the conveying screw shaft 6 through the first gear 13. The material conveying structure includes a material conveyor 14 located inside the vehicle body 1. The material conveyor 14 is connected to the feed inlet at the upper end of the conveying shell 5 via a material conveying main pipe 20. Specifically, the conveying shell 5 of the present invention is also slidably connected to a cover plate along its feed inlet 25. The cover plate is used to adjust the length of the feed inlet 25 from its lower end to its upper end. The cover plate is also provided with locking bolts for locking the relative position between the cover plate and the feed inlet 25. The more the cover plate slides downward, the longer the upper half of the feed inlet 25 is covered, and the shorter the passage for material conveying below the feed inlet 25 will be. This allows the actual length of the feed inlet to match the road surface cracks of different depths, so that the actual feed inlet will not extend above the road surface crack during the material conveying process. This invention uses a crack cutting mechanism 4 to first mill along the crack, thereby appropriately increasing the crack width. This mills away the loose parts of the crack sidewalls and makes the crack sidewalls more regular, which facilitates subsequent filling with repair material. Then, the longitudinal feed port 25 on the side wall of the conveying shell 5 of the auger conveying structure directly fills the longitudinal space of the repair material from the milled, more regular groove, thereby achieving the goal of filling the entire crack as much as possible during the initial filling.

[0023] Furthermore, the crack cutting mechanism 4 includes a drill-milling cutter that drills into the crack and mills along the crack direction. The drill-milling cutter is rotatably connected to the frame 2, and its upper end is connected to the output shaft of the power motor 3 via a coupling. A second gear 7 is also fixedly connected to the upper end of the drill-milling cutter, and the second gear 7 acts as a power component, meshing with the first gear 13. In this embodiment, the first gear 13 simultaneously drives the first gear 13 of the auger conveyor structure to rotate, thereby driving the auger conveyor structure to perform material conveying operations.

[0024] Furthermore, a filler compaction mechanism 9 is also provided between the crack filling mechanism and the vehicle body 1. The filler compaction mechanism 9 includes a horizontal rotating shaft 10, which is rotatably connected to the crossbar 23 via a rotating connecting seat. Multiple elastic elements 9-2 are connected to the horizontal rotating shaft 10 circumferentially. Each elastic element 9-2 is connected to a blade 9-1. Each blade 9-1 is located on the same plane and is perpendicular to the horizontal rotating shaft 10. The blade 9-1 is used to apply vibration and impact force to the filler material 16 in the crack when the horizontal rotating shaft 10 rotates, thereby eliminating voids inside the filler material 16. The compaction structure of the compaction mechanism 9 is designed as follows: The blade 9-1 structure is chosen primarily because the crack is a narrow, deep groove. The blade structure perfectly matches this structure, allowing it to penetrate the packing material effectively under the elasticity of the spring during rotation, thus improving compaction. The blade structure also utilizes the thinner end face of the blade to generate greater pressure during compaction, further enhancing the compaction effect. The lower ends of the horizontal rotating shaft 10 and the vertical rotating shaft 11 are connected via a worm gear structure. The vertical rotating shaft 11 is rotatably connected to the frame 2, and a third gear 24 is fixedly and coaxially connected to it, meshing with the first gear 13. This embodiment fully utilizes the output power of the entire device's motor 3 to simultaneously provide working power to the crack cutting mechanism 4, the auger conveying structure, and the compaction mechanism 9.

[0025] Furthermore, a material replenishment output component 8 is provided between the packing compaction mechanism 9 and the vehicle body 1. The material replenishment output component 8 is connected to the crossbar 23 and is connected to the main conveying pipe 20 through the material replenishment pipe 12. A packing compaction mechanism 15 connected to the vehicle body 1 is also provided between the material replenishment output component 8 and the vehicle body 1. When a depression appears after the packing compaction mechanism 9 compacts the packing, the material replenishment output component 8 can continue to replenish the depressed area.

[0026] Furthermore, one type of material output component 8 has the following structure: the material output component 8 includes a material output cylinder, which is fixed to the crossbar 23. The upper end of the material output cylinder is connected to the material supply pipe 12. The material output cylinder is equipped with a solenoid valve 17 for controlling its material output. The solenoid valve 17 is signal-connected to a solenoid valve controller. The control button 19 of the solenoid valve controller is located on a push handle 18, which is located at the rear end of the vehicle body 1. When the vibrating compaction area needs material replenishment, the solenoid valve 17 can be opened for material replenishment by controlling the control button 19.

[0027] Furthermore, another type of material output component 8 has the following structure: the material output component 8 includes a fixed cylinder 8-1, which is fixed to the crossbar 23 by a connector 26. The upper end of the fixed cylinder 8-1 is connected to the material supply pipe 12. A movable cylinder 8-2 is inserted into the lower end of the fixed cylinder 8-1. The interior of the fixed cylinder 8-1 and the interior of the movable cylinder 8-2 are connected. A discharge port 8-3 is provided on the side wall of the movable cylinder 8-2. The lower end of the movable cylinder 8-2 is closed and a counterweight 8-6 is fixed inside the lower end. A caster wheel 8-7 is also provided at the lower end of the movable cylinder 8-2. An anti-detachment structure is also provided between the fixed cylinder 8-1 and the movable cylinder 8-2 to prevent them from detaching. In this invention, when the universal wheel 8-7 at the lower end of the movable cylinder 8-2 comes into contact with the compacted depression, the movable cylinder 8-2 moves downward relative to the fixed cylinder 8-1 under the gravity of the counterweight, thereby exposing the discharge port 8-3 on the side wall of the movable cylinder 8-2. The repair material will then be output from the discharge port 8-3 under the action of the output force, thus filling the compacted depression. The deeper the compacted depression, the greater the downward distance of the movable cylinder 8-2, the larger the exposed discharge port 8-3, and the more repair material is output, thus better filling the deeper compacted depression. The structure of this embodiment can automatically and adjustablely perform the material replenishment work of the compacted depression according to the depth of the compacted depression without the need for additional electrical control. When there is no depression under the universal wheel, the discharge port 8-3 is just sealed inside the fixed cylinder 8-1 without material leakage. The material replenishment output component 8 of this embodiment has a simple structure and high working reliability.

[0028] Furthermore, the anti-detachment structure includes a longitudinal groove 8-5 provided on the outer side wall of the movable cylinder 8-2 and a slider 8-4 provided on the inner side wall of the fixed cylinder 8-1. The longitudinal groove 8-5 is slidably connected to the slider 8-4, and both the upper and lower ends of the longitudinal groove 8-5 are provided with blocking edges to prevent the slider 8-4 from detaching from the longitudinal groove 8-5.

[0029] Furthermore, the vehicle body 1 includes a lifting seat 27 located at its lower end. The lifting seat 27 is used to lift the vehicle body 1, thereby lifting the entire frame 2, which can move the crack cutting mechanism 4 and the auger conveying structure upward out of the road surface crack, and can also extend them downward into the road surface crack.

[0030] Furthermore, the integrated drilling and milling cutter includes a drill bit 21 located at its lower end, which has the function of drilling downwards.

[0031] In summary, the present invention provides a road surface crack repair device. Before repairing the road surface crack, a receiving channel extending into the ground is pre-opened at one end of the crack. A crack cutting mechanism and an auger conveying structure are inserted through this receiving channel. The crack cutting mechanism directly mills the crack to form a groove 22 with relatively regular sidewalls that can be passed through by the auger conveying structure. At the same time, the auger conveying structure directly fills the groove 22 with repair material, thereby achieving the purpose of filling the entire crack. Through the filling compaction mechanism, the material output component, and the filling compaction mechanism, the occurrence of hollow areas inside the crack can be avoided as much as possible. Specifically, the longitudinal feed port on the side wall of the conveyor shell of the auger conveyor structure of the present invention can promptly replenish the filler inside the crack, thereby minimizing the occurrence of voids inside the filler at the first moment. Before filling the crack, the crack is pre-milled by the crack cutting mechanism, which makes the crack as regular as possible and removes loose particles on the contact surface between the crack and the filler, thus facilitating the auger conveyor structure to enter the crack and promoting the adhesion between the filler and the crack sidewall. The present invention further eliminates voids inside the filler by elastic vibration compaction of the filler compaction mechanism, thereby ensuring that the crack is fully filled by the filler. The replenishment output component allows new filler to fill any collapsed areas above the filler compacted by the filler compaction mechanism, and then compaction is achieved by the filler compaction mechanism. The present invention uses a single power motor to drive multiple mechanisms simultaneously, reducing the complexity of the entire device and improving the reliability of the device operation.

[0032] The above-disclosed embodiments are merely a few specific examples of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A road surface crack repair device, comprising a vehicle body (1), a frame (2) mounted on the vehicle body (1), a crack cutting mechanism (4) at the front end of the frame (2), a crack filling mechanism between the crack cutting mechanism (4) and the vehicle body (1), the crack filling mechanism being connected to the frame (2), characterized in that, The crack filling mechanism includes: The auger conveying structure includes a conveying shell (5) extending longitudinally into the crack cut by the crack cutting mechanism (4). The side wall of the conveying shell (5) opposite to the vehicle body (1) is provided with a longitudinal feeding port (25). A conveying screw shaft (6) is provided inside the conveying shell (5). The conveying shell (5) is fixed to the vehicle body (1) by a crossbar (23). The upper end of the conveying screw shaft (6) extends out of the feeding port at the upper end of the conveying shell (5) and is rotatably connected to the frame (2). The upper end of the conveying screw shaft (6) is fixedly connected to a first gear (13). The first gear (13) is connected to a power component. The power component provides rotational power to the conveying screw shaft (6) through the first gear (13). The material conveying structure includes a material conveyor (14) located inside the vehicle body (1), and the material conveyor (14) is connected to the feed port at the upper end of the conveying shell (5) through the material conveying main pipe (20); A filling compaction mechanism (9) is also provided between the crack filling mechanism and the vehicle body (1). A material output component (8) is also provided between the filling compaction mechanism (9) and the vehicle body (1). The material output component (8) is connected to the crossbar (23). The material output component (8) is connected to the material conveying main pipe (20) through the material supply pipe (12). A filling compaction mechanism (15) connected to the vehicle body (1) is also provided between the material output component (8) and the vehicle body (1). The material output component (8) includes a fixed cylinder (8-1). The fixed cylinder (8-1) is fixed to the vehicle body (1) through a connector (26). On the crossbar (23), the upper end of the fixed cylinder (8-1) is connected to the feeding pipe (12), and the lower end of the fixed cylinder (8-1) is inserted with a movable cylinder (8-2). The interior of the fixed cylinder (8-1) and the interior of the movable cylinder (8-2) are connected. The side wall of the movable cylinder (8-2) is provided with a discharge port (8-3). The lower end of the movable cylinder (8-2) is closed and a counterweight (8-6) is fixed inside the lower end. The lower end of the movable cylinder (8-2) is also provided with a universal wheel (8-7). The fixed cylinder (8-1) and the movable cylinder (8-2) are also provided with an anti-detachment structure to prevent them from separating.

2. The road surface crack repair device as described in claim 1, characterized in that, The crack cutting mechanism (4) includes a drill-milling cutter that drills into the crack and mills along the crack direction. The drill-milling cutter is rotatably connected to the frame (2), and the upper end of the drill-milling cutter is connected to the output shaft of the power motor (3) through a coupling shaft. The upper end of the drill-milling cutter is also fixedly connected to a second gear (7), which meshes with the first gear (13) as a power component.

3. The road surface crack repair device as described in claim 2, characterized in that, The filling compaction mechanism (9) includes a horizontal rotating shaft (10), which is rotatably connected to the crossbar (23) via a rotating connecting seat. Multiple elastic elements (9-2) are connected to the horizontal rotating shaft (10) along its circumference. Each elastic element (9-2) is connected to a blade (9-1). Each blade (9-1) is located on the same plane and is perpendicular to the horizontal rotating shaft (10). The blade (9-1) is used to apply vibration and impact force to the filling material (16) in the crack when the horizontal rotating shaft (10) rotates, thereby eliminating the hollow inside the filling material (16). The lower end of the horizontal rotating shaft (10) is connected to the vertical rotating shaft (11) through a worm gear structure. The vertical rotating shaft (11) is rotatably connected to the frame (2), and a third gear (24) is fixedly coaxially connected to the vertical rotating shaft (11). The third gear (24) meshes with the first gear (13).

4. A road surface crack repair device as described in claim 3, characterized in that, The anti-detachment structure includes a longitudinal groove (8-5) on the outer side wall of the movable cylinder (8-2) and a slider (8-4) on the inner side wall of the fixed cylinder (8-1). The longitudinal groove (8-5) and the slider (8-4) are slidably connected, and both the upper and lower ends of the longitudinal groove (8-5) are provided with blocking edges to prevent the slider (8-4) from detaching from the longitudinal groove (8-5).

5. A road surface crack repair device as described in any one of claims 1-4, characterized in that, The vehicle body (1) includes a lifting seat (27) located at its lower end, which is used to lift the vehicle body (1) and thereby lift the entire frame (2).

6. A road surface crack repair device as described in claim 2, characterized in that, The integrated drilling and milling cutter includes a drill bit (21) located at its lower end.

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