Large-thickness paving device for large-particle-size permeable asphalt concrete and construction method

Abstract

The invention relates to the technical field of asphalt concrete paving, in particular to a large-thickness paving device for large-particle-size permeable asphalt concrete.The large-thickness paving device comprises a box body, the bottom of the box body is obliquely arranged, a shell is fixedly installed at the rear end of the box body, and a rectangular hole communicating with the interior of the shell is formed in the side wall of the box body; a rotating shaft is horizontally and rotatably installed in the shell, auger blades are symmetrically and fixedly connected to the rotating shaft in a sleeving mode, a plurality of discharging openings communicated with the interior of the shell are formed in the lower surface of the shell, a driving shaft is rotatably installed at the upper end of the shell, and a driving motor is fixedly installed at the upper end of the shell. An output shaft of the driving motor is fixedly connected with the driving shaft, and a transmission assembly used for driving the rotating shaft to rotate is arranged on the shell. Due to the arrangement of the multiple discharging openings, asphalt concrete can be uniformly paved on a pavement, after the pavement is ironed and compacted, the compactness and flatness of the pavement are guaranteed, and the overall quality of the pavement is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of asphalt concrete paving, and in particular to a large-thickness paving device and a construction method for large-diameter water-permeable asphalt concrete. Background Art

[0002] Large-size permeable asphalt concrete, as a road engineering material that combines innovation and practicality, has rapidly emerged in recent years with its unique open-graded design and a void ratio of more than 15%. It has become an important means to solve urban drainage problems, alleviate urban heat island effects, and improve road safety. The core of the design of this material lies in its open-graded structure, which allows rainwater to quickly penetrate into the soil or drainage system under the road surface, effectively reducing road surface water accumulation and improving the road's anti-skid performance, thereby reducing the risk of accidents when driving on rainy days. The construction of large-size permeable asphalt mixtures requires specific paving equipment.

[0003] The paving equipment mainly consists of three parts: traction, paving and ironing. The existing paving equipment cannot evenly spread the asphalt concrete on the road surface, which affects the density and flatness of the road surface after ironing and forming, thereby reducing the overall quality of the entire road surface. Summary of the invention

[0004] The purpose of the present invention is to solve the following shortcomings in the prior art: the existing paving equipment is unable to evenly spread the asphalt concrete on the road surface when paving asphalt concrete, which in turn affects the density and flatness of the road surface after ironing and forming, thereby reducing the overall quality of the entire road surface. A large-thickness paving device and construction method for large-particle permeable asphalt concrete are proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A large-thickness paving device for large-diameter permeable asphalt concrete comprises a box body, a plurality of rollers are installed on the lower surface of the box body through a shock-absorbing assembly, a traction hook is fixedly installed on the front end of the box body, the bottom of the box body is inclined, a shell is fixedly installed on the rear end of the box body, and a rectangular hole connected to the inside of the shell is opened on the side wall of the box body, and the rectangular hole is located in the middle of the shell body; A rotating shaft is horizontally rotatably installed in the shell, and Jiaolong blades are symmetrically fixedly sleeved on the rotating shaft. The spiral directions of the two Jiaolong blades are opposite. A plurality of discharge ports that are connected to the inside of the shell are opened on the lower surface of the shell. One end of the rotating shaft extends out of the shell, and a driving shaft is rotatably installed on the upper end of the shell. A driving motor is fixedly installed on the upper end of the shell, and the output shaft of the driving motor is fixedly connected to the driving shaft. A transmission component for driving the rotating shaft to rotate is provided on the shell.

[0006] As a preferred solution, the transmission assembly includes two first transmission wheels and a first transmission belt which are respectively fixedly sleeved on the rotating shaft and the driving shaft, and the first transmission belt is sleeved on the two first transmission wheels.

[0007] As a preferred solution, an installation cavity is provided inside the box body, and the installation cavity is located at the bottom of the box body. Support blocks are symmetrically fixedly installed in the installation cavity, and rotating rods are horizontally rotatably installed on the two support blocks. A cam is fixedly sleeved on the rotating rod, and the cam is located between the two support blocks. Torsion springs are symmetrically provided on the rotating rod, and the two ends of the torsion spring are respectively fixedly connected to the support block and the cam. A stop block is fixedly installed on the top of the installation cavity, and the cam is in contact with the stop block. One end of the rotating rod passes through the installation cavity, and a rotating component for driving the rotating rod to rotate is provided on the side of the box body.

[0008] As a preferred solution, the rotating assembly includes a support shaft rotatably mounted on the side of the box, a spur gear fixedly sleeved on the rotating rod, a half gear fixedly sleeved on the support shaft and a linkage component for driving the support shaft to rotate, and the spur gear is meshingly connected with the half gear.

[0009] As a preferred solution, the linkage component includes two second transmission wheels and a second belt respectively fixedly mounted on the support shaft and the drive shaft, and the second belt is sleeved on the two second transmission wheels.

[0010] As a preferred solution, an L-shaped support arm is fixedly installed at the rear end of the box body, a lifting slot is vertically opened on the support arm, a lifting block is installed in the lifting slot through a lifting assembly, a connecting block is fixedly installed on the side of the lifting block, an ironing plate is fixedly installed at the lower end of the connecting block, and a heater is symmetrically fixedly installed on the ironing plate.

[0011] As a preferred solution, the lifting assembly includes a threaded rod and an adjusting block vertically rotatably installed in the lifting slot, the upper end of the threaded rod passes through the lifting slot and is fixedly connected to the adjusting block, and the lifting block is threadedly sleeved on the threaded rod and vertically slidably installed in the lifting slot.

[0012] As a preferred solution, the shock-absorbing assembly includes a rectangular rod fixedly installed at the lower end of the box body, a movable rod and a shock-absorbing spring fixedly installed at the upper end of the movable rod. A rectangular groove is opened at the lower end of the rectangular rod, and the upper end of the movable rod is vertically slidably inserted in the rectangular groove. The upper end of the shock-absorbing spring is fixedly connected to the inner wall of the rectangular groove, and the roller is rotatably installed at the lower end of the movable rod.

[0013] A large-thickness paving construction method for large-diameter permeable asphalt concrete, characterized in that the construction method comprises the following steps: S1. During construction, in order to improve paving efficiency and road quality, the preferred option is to use two pavers to form a team for joint paving. A certain overlapping width must be maintained between two adjacent paving areas, controlled between 5 and 10 centimeters, to ensure the continuity and uniformity of the entire paving surface.

[0014] S2. During the paving process, the paver needs to turn on the automatic leveling function and use a steel wire rope to guide it on one side. The diameter of the selected steel wire rope should be between 2.5 and 3.0 mm. The steel support should be reasonably set according to the shape of the road surface. In the straight section, a steel support should be set every 10 meters to support and fix the steel wire rope; in the curve, a steel support should be set every 5 meters to provide accurate guidance for the paver.

[0015] S3. Before paving the asphalt mixture, preheat the screed of the paver. The temperature of the screed after preheating should be strictly controlled within the range of not less than 100℃ and not more than 150℃. When the screed reaches the appropriate temperature, the paver starts working.

[0016] S4. During the paving process, the external equipment drives the paving device forward through the towing hook, and the asphalt concrete is poured into the box. Then the drive motor is started to drive the two Jiaolong blades to rotate in the shell. The Jiaolong blades should maintain continuous and stable rotation to ensure that the asphalt concrete can be evenly spread on the road surface.

[0017] S5. Adjust the distance between the ironing plate and the road surface by turning the threaded rod and keep it at 12 cm. When the ironing plate passes over the spread asphalt concrete, it will smooth and compact the asphalt concrete.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. Before spreading asphalt concrete on the road, pour the asphalt concrete into the box, and then drive the two Jiaolong blades to rotate in the shell through the cooperation of the drive motor, drive shaft, rotating shaft and transmission components, so that the asphalt concrete can flow to both sides evenly and at a uniform speed in the shell, and spread the asphalt concrete on the road surface through multiple discharge ports. The setting of multiple discharge ports can evenly spread the asphalt concrete on the road surface. After the road surface is ironed and vibrated, the density and flatness of the road surface are guaranteed, and the overall quality of the road surface is effectively improved.

[0019] 2. During the paving process of asphalt concrete, the driving shaft will drive the rotating rod to rotate intermittently through the linkage parts, spur gears and half gears, so that the cam can be separated from the block intermittently. At the same time, through the torsion force of the torsion spring, the cam will intermittently hit the block, causing the bottom of the box to vibrate, making it easier for the asphalt concrete in the box to enter the shell, preventing the asphalt concrete from accumulating at the bottom of the box, causing blockage and affecting the paving of the asphalt concrete.

[0020] 3. After paving, the asphalt concrete will be smoothed and vibrated on the road surface through the heater, vibrator and ironing plate. At the same time, the height between the ironing plate and the road surface will be adjusted through the cooperation of the threaded rod, adjustment block and lifting block to ensure that the asphalt mixture is evenly distributed on the road surface and avoid local over-thickness or over-thinness, which will affect the overall performance of the road surface.

[0021] 4. When the paving device is moving forward, the rectangular rod, the moving rod and the shock-absorbing spring cooperate with each other. When the box body encounters a bumpy road surface, it can reduce the shock of the box body, thereby reducing the bumps of the box body and ensuring that the paving device can move forward smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic front view of the three-dimensional structure of the large-thickness paving device of large-diameter water-permeable asphalt concrete proposed by the present invention; Figure 2 It is a schematic diagram of the three-dimensional cross-sectional structure of the housing, the drive motor, the drive shaft and the transmission assembly; Figure 3 It is a bottom-up perspective cross-sectional structural diagram of a large-thickness paving device for large-diameter water-permeable asphalt concrete proposed by the present invention; Figure 4 for Figure 3 The enlarged structural diagram at A in the middle; Figure 5 It is a schematic diagram of the three-dimensional cross-sectional structure of the shock absorbing component; Figure 6 It is a three-dimensional structural schematic diagram of a rotating shaft, a cam, a stopper and a rotating assembly; Figure 7 It is a schematic diagram of the three-dimensional structure of the support arm, adjustment assembly, lifting block, connecting block and ironing plate.

[0023] In the figure: 1 box body, 2 roller, 3 traction hook, 4 shell, 5 rotating shaft, 6 dragon blade, 7 feeding port, 8 driving shaft, 9 driving motor, 10 first transmission wheel, 11 first transmission belt, 12 support block, 13 rotating rod, 14 cam, 15 torsion spring, 16 stopper, 17 support shaft, 18 spur gear, 19 half gear, 20 second transmission wheel, 21 second belt, 22 support arm, 23 lifting block, 24 connecting block, 25 ironing plate, 26 heater, 27 threaded rod, 28 adjustment block, 29 rectangular rod, 30 moving rod, 31 shock-absorbing spring, 32 vibrator. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] Reference Figure 1-Figure 7 A large-thickness paving device for large-size permeable asphalt concrete includes a box body 1, a plurality of rollers 2 are installed on the lower surface of the box body 1 through a shock-absorbing assembly, a traction hook 3 is fixedly installed at the front end of the box body 1, the bottom of the box body 1 is inclined, a shell 4 is fixedly installed at the rear end of the box body 1, and a rectangular hole connected to the inside of the shell 4 is opened on the side wall of the box body 1, and the rectangular hole is located in the middle of the shell 4. The box body 1 can be moved on the road surface through the plurality of rollers 2, and the box body 1 is connected to an external device through the traction hook 3, and the paving device is driven to move forward on the road surface through the external device.

[0026] A rotating shaft 5 is horizontally rotatably installed in the shell 4, and dragon blades 6 are symmetrically fixedly sleeved on the rotating shaft 5. The spiral directions of the two dragon blades 6 are opposite. A plurality of discharge ports 7 are opened on the lower surface of the shell 4, which are all connected to the inside of the shell 4. One end of the rotating shaft 5 extends out of the shell 4, and a driving shaft 8 is rotatably installed on the upper end of the shell 4. A driving motor 9 is fixedly installed on the upper end of the shell 4, and the output shaft of the driving motor 9 is fixedly connected to the driving shaft 8. A transmission assembly for driving the rotating shaft 5 to rotate is provided on the shell 4, and the transmission assembly includes two first transmission wheels 10 and a first transmission belt 11 which are respectively fixedly sleeved on the rotating shaft 5 and the driving shaft 8, and the first transmission belt 11 is sleeved on the two first transmission wheels 10.

[0027] The driving shaft 8 is connected to the rotating shaft 5 through two first transmission wheels 10 and a first transmission belt 11. When the driving motor 9 is started, the driving shaft 8 can be driven to rotate, and then the rotating shaft 5 is driven to rotate through the transmission assembly. While the rotating shaft 5 is rotating, the two dragon blades 6 in the shell 4 can be driven to rotate. When the paving device is in use, asphalt concrete is poured into the box body 1, and then the box body 1 is driven to move forward at a uniform speed on the road surface through an external device. During this process, the asphalt concrete in the box body 1 will flow into the shell body 4 through the rectangular hole. During the rotation of the two dragon blades 6, the asphalt concrete in the shell body 4 will be driven to flow to both sides. During the flow of the asphalt concrete, it will flow out of the shell body 4 through a plurality of discharge ports 7 and be spread on the road surface. The setting of the plurality of discharge ports 7 can evenly spread the asphalt concrete on the road surface, so that after the road surface is ironed and vibrated, the density and flatness of the road surface are ensured, and the overall quality of the road surface is effectively improved.

[0028] The box body 1 is provided with an installation cavity, which is located at the bottom of the box body 1. Support blocks 12 are symmetrically fixedly installed in the installation cavity. Rotating rods 13 are horizontally rotatably installed on the two support blocks 12. A cam 14 is fixedly sleeved on the rotating rod 13. The cam 14 is located between the two support blocks 12. A torsion spring 15 is symmetrically provided on the rotating rod 13. The two ends of the torsion spring 15 are respectively fixedly connected to the support block 12 and the cam 14. A stopper 16 is fixedly installed on the top of the installation cavity. The cam 14 contacts the stopper 16. One end of the rotating rod 13 passes through the installation cavity. A rotating assembly for driving the rotating rod 13 to rotate is provided on the side of the box body 1. The rotating assembly includes a support shaft 17 rotatably mounted on the side of the box body 1, a spur gear 18 fixedly sleeved on the rotating rod 13, a half gear 19 fixedly sleeved on the support shaft 17, and a linkage component for driving the support shaft 17 to rotate. The spur gear 18 is meshed and connected with the half gear 19. The linkage component includes two second transmission wheels 20 and a second belt 21 respectively fixedly mounted on the support shaft 17 and the driving shaft 8. The second belt 21 is sleeved on the two second transmission wheels 20.

[0029] The cam 14 is rotatably installed in the installation cavity through the support block 12 and the rotating rod 13. Under the torsion of the torsion spring 15, one side of the cam 14 contacts the stopper 16. During the paving of asphalt concrete, the driving shaft 8 drives the support shaft 17 to rotate through the transmission of the second transmission wheel 20 and the second belt 21. The shape of the half gear 19 is a cylinder, half of its outer circumference is covered with teeth, and the other half is a smooth plane. At first, the half gear 19 is meshed and connected with the spur gear 18. When the support shaft 17 drives the half gear 19 to rotate, it drives the rotating rod 13 to rotate through the spur gear 18, and at the same time drives the cam 14. One side is separated from the block 16, and the torsion spring 15 is torsionally deformed. When the smooth surface of the half gear 19 contacts the spur gear 18, the cam 14 will rotate toward the block 16 under the action of the torsion force of the torsion spring 15 and hit the block 16 until the side of the half gear 19 covered with teeth is meshed with the spur gear 18 again, driving the cam 14 to separate from the block 16 again, so that the cam 14 can intermittently hit the block 16, thereby vibrating the bottom of the box 1, facilitating the asphalt concrete in the box 1 to enter the shell 4, preventing the asphalt concrete from accumulating at the bottom of the box 1 and causing blockage, thereby affecting the paving of the asphalt concrete.

[0030] An L-shaped support arm 22 is fixedly installed at the rear end of the box body 1, and a lifting groove is vertically opened on the support arm 22. A lifting block 23 is installed in the lifting groove through a lifting assembly. A connecting block 24 is fixedly installed on the side of the lifting block 23, and a screed plate 25 is fixedly installed at the lower end of the connecting block 24. A heater 26 is symmetrically fixedly installed on the screed plate 25. The lifting assembly includes a threaded rod 27 and an adjusting block 28 that are vertically rotatably installed in the lifting groove. The upper end of the threaded rod 27 passes through the lifting groove and is fixedly connected to the adjusting block 28. The lifting block 23 is threadedly sleeved on the threaded rod 27 and vertically slidably installed in the lifting groove.

[0031] The heater 26 and the vibrator 32 are prior art and are installed on the ironing plate 25. They can increase the temperature of the ironing plate 25 and drive the ironing plate 25 to vibrate. The height between the ironing plate 25 and the road surface can be adjusted. By rotating the adjusting block 28, the threaded rod 27 is driven to rotate, thereby driving the lifting block 23 to move up and down in the lifting groove to adjust the height of the ironing plate 25, thereby controlling the thickness of the asphalt concrete after ironing and compaction, ensuring that the asphalt mixture is evenly distributed on the road surface, avoiding the situation where the asphalt is too thick or too thin in some areas, thereby affecting the overall performance of the road surface.

[0032] The shock absorbing assembly includes a rectangular rod 29 fixedly mounted on the lower end of the box body 1, a movable rod 30 and a shock absorbing spring 31 fixedly mounted on the upper end of the movable rod 30. A rectangular groove is provided at the lower end of the rectangular rod 29. The upper end of the movable rod 30 is vertically slidably inserted in the rectangular groove. The upper end of the shock absorbing spring 31 is fixedly connected to the inner wall of the rectangular groove. The roller 2 is rotatably mounted on the lower end of the movable rod 30. During the process of the paving device moving forward, the rectangular rod 29, the movable rod 30 and the shock absorbing spring 31 cooperate with each other. When the box body 1 encounters a bumpy road surface, the box body 1 can be shock-absorbing, thereby reducing the bumping of the box body 1 and ensuring that the paving device can move forward smoothly.

[0033] A large-thickness paving construction method for large-diameter permeable asphalt concrete, the construction method comprising the following steps; S1. During construction, in order to improve paving efficiency and road quality, the preferred option is to use two pavers to form a team for joint paving. In this way, the two pavers work together, and a certain overlapping width must be maintained between two adjacent paving areas, usually controlled between 5 and 10 centimeters, to ensure the continuity and uniformity of the entire paving surface.

[0034] S2. During the paving process, the paver needs to turn on the automatic leveling function to ensure the flatness of the pavement. It is guided by a steel wire rope on one side. The diameter of the selected steel wire rope should be between 2.5 and 3.0 mm to ensure sufficient strength and stability. The steel support should be reasonably set according to the shape of the road surface. In the straight section, a steel support should be set every 10 meters to support and fix the steel wire rope. In the curve, since the changes in the road surface shape are more complicated, a steel support should be set every 5 meters to ensure that the steel wire rope can fit the road surface shape closely and provide accurate guidance for the paver. Through this series of refined construction measures, the pavement paving quality under large paving thickness can be effectively improved to ensure the smooth implementation of road construction projects and long-term performance.

[0035] S3. Before paving the asphalt mixture, preheating the screed plate 25 of the paver is a crucial step to ensure that the screed plate 25 of the paver is fully preheated. The temperature of the preheated screed plate 25 should be strictly controlled within the range of not less than 100°C and not more than 150°C. This temperature range helps to ensure the paving quality and effect of the asphalt concrete. When the screed plate 25 reaches the appropriate temperature, the paver starts to operate, and the paving process must be kept slow, uniform and continuous.

[0036] S4. During the paving process, the external equipment drives the paving device forward through the traction hook 3, and the asphalt concrete is poured into the box 1. Then the drive motor 9 is started to drive the two dragon blades 6 to rotate in the shell 4. The dragon blades 6 should maintain continuous and stable rotation to ensure that the asphalt concrete can be evenly spread on the road surface.

[0037] S5. By rotating the threaded rod 27, the distance between the ironing plate 25 and the road surface is adjusted to be maintained at 12 cm. When the ironing plate 25 passes through the paved asphalt concrete, it irons and compacts the asphalt concrete.

[0038] In the present invention, when the paving device is in use, asphalt concrete is poured into the box body 1, and then the box body 1 is driven to move forward at a uniform speed on the road surface through an external device. During this process, the asphalt concrete in the box body 1 will flow into the shell body 4 through the rectangular hole. At the same time, when the driving motor 9 is started, it drives the driving shaft 8 to rotate, and then drives the rotating shaft 5 to rotate through the transmission component. While the rotating shaft 5 is rotating, it can drive the two dragon blades 6 in the shell body 4 to rotate. During the rotation, the two dragon blades 6 will drive the asphalt concrete in the shell body 4 to flow to both sides. During the flow, the asphalt concrete will flow out of the shell body 4 through multiple discharge ports 7 and be spread on the road surface. The setting of multiple discharge ports 7 can evenly spread the asphalt concrete on the road surface, so that after the road surface is ironed and vibrated, the density and flatness of the road surface are guaranteed, and the overall quality of the road surface is effectively improved.

[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A large-thickness paving device for large-diameter permeable asphalt concrete, comprising a box (1), characterized in that: A plurality of rollers (2) are mounted on the lower surface of the box body (1) via a shock-absorbing assembly, a traction hook (3) is fixedly mounted on the front end of the box body (1), the bottom of the box body (1) is arranged at an angle, a shell (4) is fixedly mounted on the rear end of the box body (1), and a rectangular hole connected to the interior of the shell body (4) is opened on the side wall of the box body (1), and the rectangular hole is located in the middle of the shell body (4); A rotating shaft (5) is horizontally rotatably mounted in the shell (4), and dragon blades (6) are symmetrically fixedly sleeved on the rotating shaft (5). The spiral directions of the two dragon blades (6) are opposite. A plurality of discharge ports (7) are provided on the lower surface of the shell (4), each of which is connected to the inside of the shell (4). One end of the rotating shaft (5) extends out of the shell (4), and a drive shaft (8) is rotatably mounted on the upper end of the shell (4). A drive motor (9) is fixedly mounted on the upper end of the shell (4), and the output shaft of the drive motor (9) is fixedly connected to the drive shaft (8). A transmission component for driving the rotating shaft (5) to rotate is provided on the shell (4).

2. The large-thickness paving device for large-diameter permeable asphalt concrete according to claim 1 is characterized in that: The transmission assembly comprises two first transmission wheels (10) and a first transmission belt (11) which are respectively fixedly sleeved on the rotating shaft (5) and the driving shaft (8); the first transmission belt (11) is sleeved on the two first transmission wheels (10).

3. The large-thickness paving device for large-diameter permeable asphalt concrete according to claim 1 is characterized in that: The box body (1) is provided with an installation cavity inside, the installation cavity is located at the bottom of the box body (1), support blocks (12) are symmetrically fixedly installed in the installation cavity, rotating rods (13) are horizontally rotatably installed on the two support blocks (12), a cam (14) is fixedly sleeved on the rotating rod (13), the cam (14) is located between the two support blocks (12), torsion springs (15) are symmetrically provided on the rotating rod (13), the two ends of the torsion spring (15) are respectively fixedly connected to the support block (12) and the cam (14), a stopper (16) is fixedly installed on the top of the installation cavity, the cam (14) is in contact with the stopper (16), one end of the rotating rod (13) passes through the installation cavity, and a rotating component for driving the rotating rod (13) to rotate is provided on the side of the box body (1).

4. The large-thickness paving device for large-diameter permeable asphalt concrete according to claim 3 is characterized in that: The rotating assembly comprises a support shaft (17) rotatably mounted on the side of the housing (1), a spur gear (18) fixedly sleeved on the rotating rod (13), a half gear (19) fixedly sleeved on the support shaft (17), and a linkage component for driving the support shaft (17) to rotate, the spur gear (18) being meshingly connected to the half gear (19).

5. The large-thickness paving device for large-diameter permeable asphalt concrete according to claim 4 is characterized in that: The linkage component comprises two second transmission wheels (20) and a second belt (21) respectively fixedly mounted on the support shaft (17) and the drive shaft (8); the second belt (21) is sleeved on the two second transmission wheels (20).

6. The large-thickness paving device for large-diameter permeable asphalt concrete according to claim 1 is characterized in that: An L-shaped support arm (22) is fixedly mounted on the rear end of the box body (1); a lifting slot is vertically provided on the support arm (22); a lifting block (23) is mounted in the lifting slot via a lifting assembly; a connecting block (24) is fixedly mounted on the side of the lifting block (23); an ironing plate (25) is fixedly mounted on the lower end of the connecting block (24); and a heater (26) and a vibrator (32) are fixedly mounted on the ironing plate (25).

7. The large-thickness paving device for large-diameter permeable asphalt concrete according to claim 6 is characterized in that: The lifting assembly comprises a threaded rod (27) and an adjusting block (28) which are vertically rotatably mounted in the lifting slot. The upper end of the threaded rod (27) passes through the lifting slot and is fixedly connected to the adjusting block (28). The lifting block (23) is threadably sleeved on the threaded rod (27) and vertically slidably mounted in the lifting slot.

8. The large-thickness paving device for large-diameter permeable asphalt concrete according to claim 1 is characterized in that: The shock absorbing assembly comprises a rectangular rod (29) fixedly mounted on the lower end of the box body (1), a moving rod (30), and a shock absorbing spring (31) fixedly mounted on the upper end of the moving rod (30); a rectangular groove is provided at the lower end of the rectangular rod (29); the upper end of the moving rod (30) is vertically slidably inserted into the rectangular groove; the upper end of the shock absorbing spring (31) is fixedly connected to the inner wall of the rectangular groove; and the roller (2) is rotatably mounted on the lower end of the moving rod (30).

9. A large-thickness paving construction method for large-diameter permeable asphalt concrete, characterized in that: The construction method comprises the following steps: S1. In order to improve paving efficiency and road quality during construction, it is preferred to use two pavers to form a team for joint paving. A certain overlap width must be maintained between two adjacent paving areas, controlled between 5 and 10 cm, to ensure the continuity and uniformity of the entire paving surface. S2. During the paving process, the paver needs to turn on the automatic leveling function and use the method of being guided by a steel wire rope on one side. The diameter of the selected steel wire rope should be between 2.5 and 3.0 mm. The steel bar bracket should be reasonably set according to the shape of the road surface. In the straight section, a steel bar bracket should be set every 10 meters to support and fix the steel wire rope; and in the curve, a steel bar bracket should be set every 5 meters to provide accurate guidance for the paver; S3. Before paving the asphalt mixture, preheat the screed plate (25) of the paver. The temperature of the preheated screed plate (25) should be strictly controlled within a range of not less than 100° C. and not more than 150° C. When the screed plate (25) reaches a suitable temperature, the paver starts to operate. S4. During the paving process, the external device drives the paving device forward through the traction hook (3), and the asphalt concrete is poured into the box (1). Then, the drive motor (9) is started to drive the two dragon blades (6) to rotate in the housing (4). The dragon blades (6) should maintain continuous and stable rotation to ensure that the asphalt concrete can be evenly spread on the road surface; S5. By rotating the threaded rod (27), the distance between the ironing plate (25) and the road surface is adjusted to be maintained at 12 cm. When the ironing plate (25) passes through the paved asphalt concrete, the asphalt concrete is smoothed and compacted.

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