Pavement repairing device for road and bridge construction

Abstract

The invention relates to a pavement repairing device for road and bridge construction, which comprises a vehicle body, and an asphalt crushing device, an asphalt lifting device, an asphalt heating and mixing device, an asphalt paving device and an asphalt leveling and compacting device are sequentially arranged on the vehicle body from a vehicle head to a parking space; the asphalt heating and mixing device comprises a mixing container and a new asphalt storage container which are arranged on the vehicle body, heating devices used for heating and heat preservation of asphalt are arranged in the mixing container and the new asphalt storage container, and an asphalt conveying pipe is connected between the mixing container and the new asphalt storage container. An asphalt conveying pump is arranged on the asphalt conveying pipe; according to the invention, the old asphalt is recycled, the pavement repairing cost is reduced, and no pollution is caused to the environment.

Description

Technical Field

[0001] The present invention relates to the technical field of road surface repair, and particularly relates to a road surface repair device for road and bridge construction. Background Art

[0002] A road bridge is a bridge composed of several major parts such as a roadbed, a road surface, a bridge, a tunnel project, and traffic engineering facilities. Among them, the road surface refers to a layered structure directly bearing vehicle loads paved on the roadbed with various road construction materials. A road surface with good quality should have sufficient strength and good stability, and its surface should meet the requirements of being flat, dense, and anti-skid. The road surface structure consists of a surface layer, a base layer, and a cushion layer. The quality of the road surface directly affects the driving speed, transportation cost, driving safety, and comfort. Compared with a gravel road surface on the same grade highway, the driving speed on an asphalt road surface can generally be increased by 80% - 200%, the fuel consumption can be reduced by 15% - 20%, the tire driving mileage can be increased by 20%, and the transportation cost can be reduced by 18% - 20%.

[0003] Due to the passing of many vehicles every day, a considerable proportion of which are large trucks, and coupled with the long-term exposure of the road surface to wind, sun, and rain, this leads to various road surface diseases. The harm of road surface diseases lies in the continuous entry of water from cracks, softening the base layer or even the roadbed, resulting in a decrease in the bearing capacity of the road surface. Especially in the northeastern region of our country, the temperature difference between winter and summer reaches more than 50°C, and the road surface is more likely to be damaged. This requires regular maintenance of the road surface intervals. If the road surface cracks are not repaired in time, there will be certain potential safety hazards for vehicle driving, often causing various traffic accidents.

[0004] In the prior art, when diseases occur on an asphalt road surface, usually professional repair personnel use a road surface cutting machine to cut a rectangular cut mark around a cavity at the edge position of the cavity, then use a crusher driven by an employee to crush the asphalt inside the cut mark, and then remove the asphalt from the site. Later, new asphalt is used for paving to complete the repair. This method of road surface repair not only pollutes the environment by discarding asphalt but also causes asphalt waste, increasing the cost of road surface repair. Summary of the Invention

[0005] The embodiment of the present invention provides a road surface repair device for road and bridge construction, which can solve the problems in the prior art that the discarded asphalt in the process of road surface repair not only pollutes the environment but also causes asphalt waste, increasing the cost of road surface repair.

[0006] To solve the above technical problems, the present invention adopts the following technical solutions: A road surface repair device for road and bridge construction, including a vehicle body, on which an asphalt crushing device, an asphalt lifting device, an asphalt heating and mixing device, an asphalt paving device, and an asphalt leveling and compaction device are sequentially arranged from the front of the vehicle to the rear of the vehicle;

[0007] The asphalt crushing device is installed at the front end of the vehicle body, and the asphalt crushing device is used to crush the asphalt on the road surface to be repaired;

[0008] The asphalt heating and mixing device includes a mixing container and a new asphalt storage container arranged on the vehicle body. Heating devices for heating and insulating the asphalt are arranged inside both the mixing container and the new asphalt storage container. An asphalt delivery pipe is connected between the mixing container and the new asphalt storage container, and an asphalt delivery pump is arranged on the asphalt delivery pipe;

[0009] The tail end of the asphalt lifting device is connected to the mixing container, and the asphalt lifting device is used to transport the asphalt crushed by the asphalt crushing device into the mixing container;

[0010] The asphalt paving device is used to lay the mixed recycled asphalt on the road surface to be repaired. The asphalt leveling and compaction device is arranged at the tail end of the vehicle body, and the asphalt leveling and compaction device is used to level and compact the laid recycled asphalt.

[0011] Preferably, the asphalt crushing device includes a planing roller rotatably connected to the front end of the vehicle body, and a first driving part arranged at the front end of the vehicle body with its output end fixedly connected to the planing roller.

[0012] Preferably, the bottom of the mixing container has an opening, a discharge port is arranged at the tail end of the opening, and a material blocking device is installed at the discharge port. The asphalt paving device includes a second driving part arranged on the vehicle body. The second driving part is drivingly connected to an asphalt horizontal conveying device for conveying the recycled asphalt towards the tail end of the vehicle body, and a two-way spiral conveyor for horizontally paving the recycled asphalt. The asphalt horizontal conveying device is located below the opening, and the two-way spiral conveyor is located at the tail end of the asphalt horizontal conveying device.

[0013] Preferably, the asphalt leveling and compaction device includes an eccentric disk drivingly connected by the second driving part, and a guide plate vertically slidably connected to the vehicle body. A ring-shaped part is rotatably connected to the annular surface of the eccentric disk, a connecting rod hinged to the guide plate is arranged on the ring-shaped part, and a leveling plate is arranged at the lower end of the guide plate.

[0014] Preferably, the vehicle body includes a frame. Two liftable front wheels are installed inside the front part of the frame, and a liftable rolling wheel is installed at the tail end of the frame.

[0015] Preferably, the asphalt lifting device includes a dust reduction tank with its tail end connected to the mixing container. Two spur gears meshing with each other are rotatably connected to the outer side wall of the dust reduction tank. Two crushing rollers located inside the dust reduction tank are arranged on the two spur gears, and a third driving part with its output end fixedly connected to one of the spur gears is arranged on the other side wall of the dust reduction tank.

[0016] Preferably, a fourth driving part is arranged at the upper end of the mixing container, an output end of the fourth driving part is provided with a stirring shaft extending into the interior of the mixing container, and stirring paddles are arranged on the stirring shaft.

[0017] Preferably, the heating device includes medium cavities respectively formed on the inner sides of the side walls of the mixing container and the new asphalt storage container, and a heater is arranged inside the medium cavities.

[0018] Compared with the prior art, in the present invention, through the cooperative arrangement of a vehicle body, an asphalt crushing device, an asphalt lifting device, an asphalt heating and mixing device, an asphalt paving device, an asphalt leveling and compressing device, a mixing container, a new asphalt storage container, a heating device, an asphalt conveying pipe and an asphalt conveying pump, the vehicle body moves along the road surface to be repaired, the asphalt crushing device crushes the road surface asphalt, the crushed asphalt enters the mixing container under the conveying action of the asphalt lifting device, the asphalt conveying pump conveys the new asphalt in the new asphalt storage container to the mixing container, under the heating action of the heating device in the mixing container, the old asphalt melts and mixes with the new asphalt to form recycled asphalt, the asphalt paving device evenly spreads the recycled asphalt on the road surface, and finally the asphalt leveling and compressing device levels and compresses it, so that the old asphalt is recycled, the road surface repair cost is reduced, and the environment is not polluted. Description of the Drawings

[0019] Figure 1 is the front view structural schematic diagram of the present invention;

[0020] Figure 2 is the rear view structural schematic diagram of the present invention;

[0021] Figure 3 is the top view structural schematic diagram of the vehicle body of the present invention;

[0022] Figure 4 is the front view sectional structural schematic diagram of the dust reduction tank of the present invention;

[0023] Figure 5 is the front view sectional structural schematic diagram of the mixing container of the present invention;

[0024] Figure 6 is the present invention Figure 3 sectional structural schematic diagram taken along the A-A direction in.

[0025] In the figure: 1. Vehicle body; 101. Frame; 102. Front wheel; 103. Rolling wheel; 2. Mixing container; 3. New asphalt storage container; 4. Asphalt delivery pipe; 5. Asphalt delivery pump; 6. Planing roller; 7. First driving part; 8. Opening; 9. Discharge port; 10. Second driving part; 11. Double - screw conveyor; 12. Eccentric disk; 13. Ring part; 14. Connecting rod; 15. Guide plate; 16. Screed; 17. Dust - fall tank; 18. Third driving part; 19. Straight gear; 20. Crushing roller; 21. Fourth driving part; 22. Stirring shaft; 23. Stirring paddle; 24. Medium chamber; 25. Heater; 26. First conveying roller; 27. First conveyor belt; 28. First partition board; 29. Third belt; 30. First driving pulley; 31. First driven pulley; 32. First belt; 33. Telescopic device; 34. Baffle; 35. Second driven pulley; 36. Second belt; 37. Second conveying roller; 38. Second conveyor belt; 39. Second partition board; 40. Third driven pulley; 41. Second driving pulley. Detailed implementation mode

[0026] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the technical solutions of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0027] As Figures 1 to 6 shown, a pavement repair device for road and bridge construction includes a vehicle body 1. An asphalt crushing device, an asphalt lifting device, an asphalt heating and mixing device, an asphalt paving device, and an asphalt leveling and compaction device are sequentially arranged on the vehicle body 1 from the front of the vehicle to the rear of the vehicle;

[0028] The asphalt crushing device is installed at the front end of the vehicle body 1, and the asphalt crushing device is used to crush the asphalt on the pavement to be repaired;

[0029] The asphalt heating and mixing device includes a mixing container 2 and a new asphalt storage container 3 arranged on the vehicle body 1. Heating devices for heating and insulating the asphalt are arranged inside both the mixing container 2 and the new asphalt storage container 3. An asphalt delivery pipe 4 is connected between the mixing container 2 and the new asphalt storage container 3, and an asphalt delivery pump 5 is arranged on the asphalt delivery pipe 4;

[0030] The tail end of the asphalt lifting device is connected to the mixing container 2, and the asphalt lifting device is used to convey the asphalt crushed by the asphalt crushing device into the mixing container 2;

[0031] The asphalt paving device is used to lay the mixed recycled asphalt on the road surface to be repaired. The asphalt leveling and compaction device is arranged at the tail end of the vehicle body 1, and the asphalt leveling and compaction device is used to level and compact the laid recycled asphalt.

[0032] During specific use, the vehicle body 1 moves along the road surface to be repaired. The asphalt crushing device crushes the road surface asphalt. The crushed asphalt enters the mixing container 2 under the conveying action of the asphalt lifting device. The asphalt delivery pump 5 delivers the new asphalt in the new asphalt storage container 3 into the mixing container 2. Under the heating action of the heating device in the mixing container 2, the old asphalt melts and mixes with the new asphalt to form recycled asphalt. The asphalt paving device evenly spreads the recycled asphalt on the road surface, and finally, the asphalt leveling and compaction device levels and compacts it.

[0033] In order to achieve the purpose of recycling old asphalt, preferably, the asphalt crushing device includes a planing roller 6 rotatably connected to the front end of the vehicle body 1, and a first driving part 7 arranged at the front end of the vehicle body 1 and fixedly connected to the output end of the planing roller 6. The first driving part 7 is an engine or a reduction motor. The planing roller 6 is a solid roller structure, and planing teeth are arranged on its surface.

[0034] Specifically, when the first driving part 7 works, it drives the planing roller 6 and the planing teeth to rotate, and cuts off the asphalt on the road surface.

[0035] In order to achieve the purpose of laying the recycled asphalt on the road surface, preferably, the bottom of the mixing container 2 has an opening 8. A discharge port 9 is arranged at the tail end of the opening 8, and a material blocking device is installed at the discharge port 9. The asphalt paving device includes a second driving part 10 arranged on the vehicle body 1. The second driving part 10 is drivingly connected with an asphalt horizontal conveying device for conveying the recycled asphalt towards the tail end of the vehicle body 1, and a two-way screw conveyor 11 for horizontally spreading the recycled asphalt. The asphalt horizontal conveying device is located below the opening 8, and the two-way screw conveyor 11 is located at the tail end of the asphalt horizontal conveying device.

[0036] The second driving part 10 is an engine or a reduction motor. The asphalt horizontal conveying device includes two first conveying rollers 26 rotatably connected between the two side walls of the vehicle body 1. A first conveyor belt 27 is drivingly connected between the two first conveying rollers 26. First partitions 28 are arranged on the first conveyor belt 27. One of the first conveying rollers 26 is fixedly connected to the output end of the second driving part 10. A first driving pulley 30 is arranged at the output end of the second driving part 10. The first driving pulley 30 is a double-groove pulley. A first driven pulley 31 is coaxially arranged on the bidirectional screw conveyor 11. One of the grooves of the first driving pulley 30 is drivingly connected to the first driven pulley 31 through a first belt 32. The conveying directions of the screw conveying blades at both ends of the bidirectional screw conveyor 11 are opposite, and the recycled asphalt falling from the first conveyor belt 27 is spread to both sides. The material blocking device includes a telescopic device 33 arranged on the outer wall of the mixing container 2. A baffle 34 for adjusting the size of the discharge port 9 is arranged at the telescopic end of the telescopic device 33. The telescopic device 33 is an electric push rod or a hydraulic rod.

[0037] Specifically, when laying the recycled asphalt, the second driving part 10 works to drive the first conveying roller 26 fixedly connected to its output end to rotate. Under the action of tension, the two first conveying rollers 26 drive the first conveyor belt 27 to rotate. The recycled asphalt inside the mixing container 2 moves towards the tail end of the vehicle body 1 and falls to the ground as the first partitions 28 on the first conveyor belt 27 rotate. The second driving part 10 simultaneously drives the first driving pulley 30 to rotate. The first driving pulley 30 drives the first driven pulley 31 to rotate through the first belt 32. The first driven pulley 31 drives the bidirectional screw conveyor 11 to rotate, and spreads the recycled asphalt falling to the ground evenly on the ground.

[0038] When it is necessary to adjust the paving thickness, the size of the discharge port 9 can be controlled by adjusting the telescopic distance of the telescopic end of the telescopic device 33, so as to adjust the feeding speed of the recycled asphalt.

[0039] In order to level and compact the paved recycled asphalt, preferably, the asphalt leveling and compaction device includes an eccentric disk 12 driven and connected by the second driving part 10, and a guide plate 15 slidably connected to the vehicle body 1 vertically. An annular part 13 is rotatably connected to the annular surface of the eccentric disk 12. A connecting rod 14 hinged to the guide plate 15 is arranged on the annular part 13. A leveling plate 16 is arranged at the lower end of the guide plate 15. A second driven pulley 35 is coaxially arranged on the eccentric disk 12. The other groove of the first driving pulley 30 is drivingly connected to the second driven pulley 35 through a second belt 36.

[0040] Specifically, the first driving pulley 30 drives the second driven pulley 35 to rotate through the second belt 36. The second driven pulley 35 drives the eccentric disc 12 and the annular member 13 to rotate eccentrically. The annular member 13 drives the guide plate 15 and the leveling plate 16 to perform reciprocating lifting movements through the connecting rod 14. The leveling plate 16 levels and compacts the recycled asphalt laid on the ground.

[0041] To achieve the purpose of leveling and compacting the paved recycled asphalt, preferably, the vehicle body 1 includes a vehicle frame 101. Two liftable front wheels 102 are installed inside the front part of the vehicle frame 101, and a liftable rolling wheel 103 is installed at the tail end of the vehicle frame 101.

[0042] The front wheels 102 and the rolling wheel 103 are respectively connected to the vehicle frame 101 through hydraulic rods.

[0043] Specifically, during the movement of the vehicle body 1, the rolling wheel 103 re-compacts the asphalt road surface leveled and compacted by the leveling plate 16, improving the road surface repair effect. Additionally, by adjusting the height of the hydraulic rod, the distances between the asphalt crushing device, the asphalt lifting device, the asphalt heating and mixing device, the asphalt paving device, and the asphalt leveling and compacting device and the ground can be adjusted, facilitating height adjustment according to the damage depth of the road surface.

[0044] To achieve the purpose of improving the quality of recycled asphalt, preferably, the asphalt lifting device includes a dust - settling tank 17 with its tail end connected to the mixing container 2. Two meshing spur gears 19 are rotatably connected to the outer side wall of the dust - settling tank 17. Two crushing rollers 20 located inside the dust - settling tank 17 are arranged on the two spur gears 19. A third driving part 18 with its output end fixedly connected to one of the spur gears 19 is arranged on the other side wall of the dust - settling tank 17. The third driving part 18 is an engine or a reduction motor.

[0045] Specifically, when the third driving part 18 operates, it drives the spur gear 19 fixedly connected to its output end to rotate. This spur gear 19 drives the other spur gear 19 to rotate. The two spur gears 19 drive the two crushing rollers 20 to rotate towards each other, crushing the old asphalt entering the mixing container 2 through the dust - settling tank 17, improving the melting efficiency of the old asphalt, and enabling the old asphalt to be thoroughly melted and evenly mixed with the new asphalt.

[0046] To achieve the purpose of recycling old asphalt, preferably, the asphalt lifting device further includes second conveying rollers 37 rotatably connected to both ends inside the dust - settling tank 17. A second conveyor belt 38 is drivingly connected between the two second conveying rollers 37. Second partitions 39 are arranged on the second conveyor belt 38. A third driven pulley 40 is coaxially arranged with the upper - end second conveying roller 37. A second driving pulley 41 is fixedly connected to the output end of the third driving part 18. A third belt 29 is drivingly connected between the second driving pulley 41 and the third driven pulley 40.

[0047] Specifically, the third driving part 18 drives the second driving pulley 41 to rotate simultaneously. The second driving pulley 41 drives the third driven pulley 40 to rotate through the third belt 29. The third driven pulley 40 drives the second conveying roller 37 at the upper end to rotate. Under the action of tension, the two second conveying rollers 37 drive the second conveyor belt 38 and the second partition 39 to rotate, and convey the old asphalt planed by the planing roller 6 to the mixing container 2.

[0048] To achieve the purpose of improving the quality of recycled asphalt, preferably, a fourth driving part 21 is arranged at the upper end of the mixing container 2. The output end of the fourth driving part 21 is provided with a stirring shaft 22 extending into the interior of the mixing container 2, and stirring paddles 23 are arranged on the stirring shaft 22.

[0049] The heating device includes medium cavities 24 respectively opened on the inner sides of the side walls of the mixing container 2 and the new asphalt storage container 3. The medium cavities 24 are filled with a heat-conducting medium, such as kerosene, and heaters 25 are arranged inside the medium cavities 24.

[0050] Specifically, the heating device heats and keeps warm the asphalt in the mixing container 2 and the new asphalt storage container 3, so that the asphalt becomes fluid. By adding a heat-conducting medium inside the medium cavity 24, the asphalt inside the mixing container 2 and the new asphalt storage container 3 is heated evenly. The fourth driving part 21 works to drive the stirring paddles 23 to rotate through the stirring shaft 22, so that the old asphalt and the new asphalt are evenly mixed, improving the quality of the recycled asphalt.

[0051] Compared with the prior art, the present invention is provided with a cooperation of a vehicle body 1, an asphalt crushing device, an asphalt lifting device, an asphalt heating and mixing device, an asphalt paving device, an asphalt leveling and compressing device, a mixing container 2, a new asphalt storage container 3, a heating device, an asphalt conveying pipe 4 and an asphalt conveying pump 5. The vehicle body 1 moves along the road surface to be repaired. The asphalt crushing device crushes the road surface asphalt. The crushed asphalt enters the mixing container 2 under the conveying action of the asphalt lifting device. The asphalt conveying pump 5 conveys the new asphalt in the new asphalt storage container 3 to the mixing container 2. Under the heating action of the heating device in the mixing container 2, the old asphalt melts and mixes with the new asphalt to form recycled asphalt. The asphalt paving device evenly spreads the recycled asphalt on the road surface, and finally the asphalt leveling and compressing device levels and compresses it, so that the old asphalt is recycled, the road surface repair cost is reduced, and the environment is not polluted.

[0052] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A road surface repair device for road and bridge construction, comprising a vehicle body (1), characterized in that: The vehicle body (1) is provided with an asphalt crushing device, an asphalt lifting device, an asphalt heating and mixing device, an asphalt paving device and an asphalt leveling and compacting device in sequence from the vehicle head to the parking space; The asphalt crushing device is installed at the front end of the vehicle body (1), and is used to crush the asphalt on the road surface to be repaired; The asphalt heating and mixing device comprises a mixing container (2) and a new asphalt storage container (3) arranged on a vehicle body (1); a heating device for heating and keeping the asphalt warm is arranged inside the mixing container (2) and the new asphalt storage container (3); an asphalt delivery pipe (4) is connected between the mixing container (2) and the new asphalt storage container (3); an asphalt delivery pump (5) is arranged on the asphalt delivery pipe (4); The rear end of the asphalt lifting device is connected to the mixing container (2), and the asphalt lifting device is used to transport the asphalt crushed by the asphalt crushing device to the mixing container (2); The asphalt paving device is used to pave the mixed regenerated asphalt on the road surface to be repaired, and the asphalt leveling and compacting device is arranged at the rear end of the vehicle body (1), and the asphalt leveling and compacting device is used to level and compact the laid regenerated asphalt.

2. The road surface repair device for road and bridge construction according to claim 1 is characterized in that: The asphalt crushing device comprises a planing roller (6) rotatably connected to the front end of a vehicle body (1), and a first driving part (7) arranged at the front end of the vehicle body (1) and fixedly connected to the planing roller (6) at the output end.

3. The road surface repair device for road and bridge construction according to claim 1 is characterized in that: The mixing container (2) has an opening (8) at the bottom, a discharge port (9) is provided at the rear end of the opening (8), and a material blocker is installed at the discharge port (9). The asphalt paving device comprises a second driving unit (10) provided on the vehicle body (1), the second driving unit (10) drivingly connected to an asphalt horizontal conveying device for conveying the regenerated asphalt to the rear end of the vehicle body (1), and a bidirectional screw conveyor (11) for horizontally paving the regenerated asphalt, the asphalt horizontal conveying device is located below the opening (8), and the bidirectional screw conveyor (11) is located at the rear end of the asphalt horizontal conveying device.

4. The road surface repair device for road and bridge construction according to claim 3 is characterized in that: The asphalt leveling and compacting device comprises an eccentric disk (12) driven and connected by a second driving unit (10), and a guide plate (15) vertically slidably connected to a vehicle body (1); a ring member (13) is rotatably connected to the annular surface of the eccentric disk (12); a connecting rod (14) hinged to the guide plate (15) is arranged on the annular member (13); and a leveling plate (16) is arranged at the lower end of the guide plate (15).

5. The road surface repair device for road and bridge construction according to claim 1 is characterized in that: The vehicle body (1) comprises a vehicle frame (101), two liftable front wheels (102) are installed on the inner side of the front part of the vehicle frame (101), and a liftable rolling wheel (103) is installed at the rear end of the vehicle frame (101).

6. The road surface repair device for road and bridge construction according to claim 1, characterized in that: The asphalt lifting device comprises a dust reduction trough (17) whose rear end is connected to a mixing container (2); two mutually meshing spur gears (19) are rotatably connected to the outer wall of the dust reduction trough (17); two crushing rollers (20) located inside the dust reduction trough (17) are arranged on the two spur gears (19); and a third driving part (18) whose output end is fixedly connected to one of the spur gears (19) is arranged on the other side wall of the dust reduction trough (17).

7. The road surface repair device for road and bridge construction according to claim 1 is characterized in that: A fourth driving unit (21) is provided at the upper end of the mixing container (2), and a stirring shaft (22) extending into the interior of the mixing container (2) is provided at the output end of the fourth driving unit (21), and a stirring paddle (23) is arranged on the stirring shaft (22).

8. The road surface repair device for road and bridge construction according to claim 1, characterized in that: The heating device comprises a medium cavity (24) respectively opened on the inner side of the side wall of the mixing container (2) and the new asphalt storage container (3), and a heater (25) is arranged inside the medium cavity (24).

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