Asphalt low-temperature paving device for road and bridge construction
By coordinating the discharge assembly, transmission assembly, and leveling structure, the problem of controlling the moving speed of the asphalt paving device was solved, achieving uniformity in asphalt pavement thickness and smoothness, and improving the quality of asphalt paving.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 何璞
- Filing Date
- 2025-05-19
- Publication Date
- 2026-05-05
AI Technical Summary
Existing asphalt paving equipment cannot precisely control the moving speed, resulting in asphalt that is either too thin or too thick, causing inconsistent road surface thickness.
The device employs a combination of a discharge assembly, a transmission assembly, and a moving assembly. The motor drives the rotating rod and the synchronous wheel to move the moving wheel, enabling the device to move while discharging material, ensuring that the asphalt is laid at equal intervals and in equal quantities. The asphalt is leveled using a worm gear mechanism through a leveling structure.
This achieved uniformity in asphalt pavement thickness and smoothness, improving the paving effect.
Smart Images

Figure CN224199748U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of road and bridge construction equipment, and in particular to a low-temperature asphalt paving device for road and bridge construction. Background Technology
[0002] Asphalt pavement refers to various types of pavement constructed by mixing road asphalt materials into mineral materials. Asphalt binder improves the ability of paving aggregates to resist damage to the pavement from traffic and natural factors, making the pavement smooth, dust-free, impermeable, and durable. It is one of the most widely used high-grade pavements in road construction.
[0003] For example, Chinese patent document CN221877608U discloses a road asphalt paving device, including a base with a drive wheel, a storage box on the base, a handrail fixedly connected to one side of the base, a conveying pipe connected to the bottom of the storage box, an extension pipe slidably connected inside the conveying pipe, an annular discharge head at the bottom of the extension pipe, two base plates fixedly connected to the side of the annular discharge head, the two base plates being symmetrically arranged, an electric push rod fixedly connected between the base plates and the base, two sealing plates at the bottom of the annular discharge head, the sealing plates being half-circles, a movable frame fixedly connected to the same side of the two base plates, a moving component for adjusting the distance between the two sealing plates being provided in the movable frame. In this way, the distance between the annular discharge head and the road surface can be adjusted to meet the needs of asphalt paving on roads of different heights, with a wide range of adaptability, reducing the possibility of asphalt splashing, improving the paving effect, and strong practicality.
[0004] During the use of the aforementioned asphalt paving device, the operator cannot precisely control the device's moving speed. With the material output speed remaining constant, a fast moving speed will result in thin asphalt, while a slow moving speed will result in thick asphalt, leading to inconsistent asphalt pavement thickness. Utility Model Content
[0005] The purpose of this invention is to provide a low-temperature asphalt paving device for road and bridge construction, so as to solve the problems and defects mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a low-temperature asphalt paving device for road and bridge construction, comprising a fixed plate, a storage box fixedly installed on the fixed plate, the bottom of the storage box being inclined, a discharge port being opened at the bottom of the storage box, a support column fixedly installed on the bottom outer wall of the storage box, the bottom end of the support column being fixedly installed on the top of the fixed plate, and also including a discharge component installed on the storage box for discharging asphalt from inside the storage box, two sets of moving components installed at the bottom of the fixed plate, one of which is connected to the discharge component by a transmission component, the device being moved simultaneously with the asphalt discharge through the cooperation of the discharge component, the transmission component, and the moving component, and a leveling structure installed on the fixed plate for leveling the discharged asphalt.
[0007] Preferably, the discharge assembly includes a first motor, a rotating rod, and a rotating plate. The first motor is fixedly installed on the rear outer wall of the storage box, the rotating rod is rotatably installed on the front and rear sides of the storage box, the rotating plate is fixedly installed on the outer wall of the rotating rod, and the inner wall of the rotating plate is in contact with the fixed plate. The output shaft of the first motor is fixedly installed on one end of the rotating rod, for discharging the asphalt inside the storage box onto the road.
[0008] Preferably, the moving component includes a fixed shaft plate, a rotating shaft, and a moving wheel. The fixed shaft plate is fixedly installed on the bottom of a fixed plate, the rotating shaft is rotatably installed on the fixed shaft plate, and the moving wheel is fixedly installed on the outer wall of the rotating shaft.
[0009] Preferably, the transmission assembly includes a synchronous pulley A, a synchronous pulley B, and a synchronous belt. Synchronous pulley A is fixedly installed on the outer wall of the rotating rod, and synchronous pulley B is fixedly installed on the outer wall of the rotating shaft. The synchronous belt is sleeved on synchronous pulley A and synchronous pulley B, and the synchronous belt meshes with synchronous pulley A and synchronous pulley B. During the asphalt discharge process, the moving wheel of the moving assembly can also be rotated, driving the device to move and causing the asphalt to be poured onto the road at equal intervals and in equal amounts, thus ensuring that the asphalt pavement thickness is consistent.
[0010] Preferably, the asphalt leveling structure includes a fixed shaft, a paving plate, a second motor, a worm gear, and a worm wheel. The fixed plate has an installation opening, the fixed shaft is fixedly installed on the front and rear sides of the installation opening, the paving plate is rotatably installed on the outer wall of the fixed shaft, the second motor is fixedly installed on the top of the fixed plate, the worm gear is fixedly installed on the output shaft of the second motor, and the worm wheel is fixedly installed on the outer wall of the paving plate, and the worm wheel meshes with the worm gear to push the asphalt and level it.
[0011] Preferably, a chute is provided on one side of the discharge port, and an L-shaped insert plate is slidably installed in the chute.
[0012] Preferably, an electric push rod is fixedly installed at the bottom of the fixed plate, and the free end of the electric push rod is fixedly installed to one side of the L-shaped insert plate.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] This low-temperature asphalt paving device for road and bridge construction uses a discharge component to transfer asphalt from the storage tank onto the road. With the cooperation of the transmission component, the device can also be moved by the moving component during the asphalt discharge process, so that the asphalt is poured onto the road at equal intervals and in equal amounts, resulting in a uniform asphalt pavement thickness. The leveling structure can push the asphalt to level it. Attached Figure Description
[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 for Figure 1 A schematic diagram of the structure on the other side;
[0018] Figure 3 This is a schematic diagram of the structure of the electric push rod and L-shaped insert plate of this utility model;
[0019] Figure 4 This is a cross-sectional view of the storage box of this utility model.
[0020] Reference numerals in the attached diagram: 1. Fixed plate; 2. Storage box; 3. Support column; 4. Shaft plate; 5. Rotating shaft; 6. Moving wheel; 7. First motor; 8. Rotating rod; 9. Rotating plate; 10. Synchronous pulley A; 11. Synchronous pulley B; 12. Synchronous belt; 13. Electric push rod; 14. L-shaped insert plate; 15. Fixed shaft; 16. Laying plate; 17. Second motor; 18. Worm gear; 19. Worm wheel. Detailed Implementation
[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0022] Please see Figure 1-4This utility model provides a technical solution: a low-temperature asphalt paving device for road and bridge construction, including a fixed plate 1, a storage box 2 fixedly installed on the fixed plate 1, the bottom of the storage box 2 being inclined, a discharge port being opened at the bottom of the storage box 2, a support column 3 fixedly installed on the bottom outer wall of the storage box 2, the bottom end of the support column 3 being fixedly installed on the top of the fixed plate 1, and also including a discharge component installed on the storage box 2, the discharge component being used to discharge asphalt inside the storage box 2, two sets of moving components installed on the bottom of the fixed plate 1, one of the moving components being provided with a transmission component between it and the discharge component, the device being moved at the same time as the asphalt is discharged through the cooperation of the discharge component, the transmission component, and the moving component, and a leveling structure installed on the fixed plate 1, the leveling structure being used to level the discharged asphalt.
[0023] Furthermore, the discharge assembly includes a first motor 7, a rotating rod 8, and a rotating plate 9. The first motor 7 is fixedly installed on the rear outer wall of the storage box 2. The rotating rod 8 is rotatably installed on the front and rear sides of the storage box 2. The rotating plate 9 is fixedly installed on the outer wall of the rotating rod 8 and contacts the inner wall of the fixed plate 1. The output shaft of the first motor 7 is fixedly installed on one end of the rotating rod 8. When the first motor 7 is started, the output shaft of the first motor 7 drives the rotating rod 8, the rotating plate 9, and the synchronous wheel A10 to rotate. The rotation of the rotating plate 9 can rotate the asphalt inside the storage box 2 to below the discharge port, thereby discharging the asphalt.
[0024] Furthermore, the moving component includes a fixed shaft plate 4, a rotating shaft 5, and a moving wheel 6. The fixed shaft plate 4 is fixedly installed on the bottom of the fixed plate 1, the rotating shaft 5 is rotatably installed on the fixed shaft plate 4, and the moving wheel 6 is fixedly installed on the outer wall of the rotating shaft 5.
[0025] Furthermore, the transmission assembly includes a synchronous pulley A10, a synchronous pulley B11, and a synchronous belt 12. The synchronous pulley A10 is fixedly installed on the outer wall of the rotating rod 8, and the synchronous pulley B11 is fixedly installed on the outer wall of the rotating shaft 5. The synchronous belt 12 is sleeved on the synchronous pulleys A10 and B11, and the synchronous belt 12 meshes with both the synchronous pulleys A10 and B11. During the asphalt discharge process, the synchronous pulley A10 can drive the synchronous pulley B11, the rotating shaft 5, and the moving wheel 6 to rotate through the synchronous belt 12. The rotation of the moving wheel 6 drives the device to move, so that the asphalt is poured onto the road at equal intervals and in equal amounts, thus driving the asphalt pavement to have a uniform thickness.
[0026] Furthermore, the leveling structure includes a fixed shaft 15, a paving plate 16, a second motor 17, a worm gear 18, and a worm wheel 19. The fixed plate 1 has an installation opening, and the fixed shaft 15 is fixedly installed on the front and rear sides of the installation opening. The paving plate 16 is rotatably installed on the outer wall of the fixed shaft 15. The second motor 17 is fixedly installed on the top of the fixed plate 1. The worm gear 18 is fixedly installed on the output shaft of the second motor 17. The worm wheel 19 is fixedly installed on the outer wall of the paving plate 16, and the worm wheel 19 meshes with the worm gear 18. When the second motor 17 is started, the output shaft of the second motor 17 drives the worm gear 18 to rotate. The rotation of the worm gear 18 drives the worm wheel 19 and the paving plate 16 to rotate, changing the tilt angle of the paving plate 16. When the device moves, it is used to push the asphalt and level it.
[0027] Furthermore, a chute is provided on one side of the discharge port, and an L-shaped insert plate 14 is slidably installed in the chute.
[0028] Furthermore, an electric push rod 13 is fixedly installed at the bottom of the fixed plate 1. The free end of the electric push rod 13 is fixedly installed on one side of the L-shaped insert plate 14. When the electric push rod 13 is activated, the free end of the electric push rod 13 pushes the L-shaped insert plate 14 to the right, which can push the L-shaped insert plate 14 out from the discharge port of the storage box 2, thereby opening and closing the discharge port.
[0029] Working principle: Asphalt is poured into the storage tank 2. The electric push rod 13 is activated, and its free end pushes the L-shaped insert plate 14 to the right, pushing the L-shaped insert plate 14 out of the discharge port of the storage tank 2, thus opening and closing the discharge port. Then, the first motor 7 is activated. The output shaft of the first motor 7 drives the rotating rod 8, rotating plate 9, and synchronous wheel A10 to rotate. The rotation of the rotating plate 9 can rotate the asphalt inside the storage tank 2 to below the discharge port, thus discharging the asphalt. The synchronous wheel A10 drives the synchronous wheel B11, rotating shaft 5, and moving wheel 6 to rotate via the synchronous belt 12. The rotation of the moving wheel 6 drives the device to move, so that the asphalt is poured onto the road at equal intervals and in equal amounts. By activating the second motor 17, the output shaft of the second motor 17 drives the worm gear 18 to rotate. The rotation of the worm gear 18 drives the worm wheel 19 and the paving plate 16 to rotate, changing the tilt angle of the paving plate 16. When the device moves, the paving plate 16 can level the asphalt.
[0030] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A low-temperature asphalt paving device for road and bridge construction, comprising a fixing plate (1), a storage box (2) fixedly installed on the fixing plate (1), the bottom of the storage box (2) being inclined, a discharge port being opened at the bottom of the storage box (2), a support column (3) being fixedly installed on the outer wall of the bottom of the storage box (2), and the bottom end of the support column (3) being fixedly installed on the top of the fixing plate (1), characterized in that, Also includes: The discharge assembly is installed on the storage tank (2) and is used to discharge the asphalt inside the storage tank (2); Two sets of moving components are installed at the bottom of the fixed plate (1). One set of moving components is connected to the discharge component by a transmission component. The device moves while the asphalt is being discharged, through the cooperation of the discharge component, the transmission component, and the moving component. The flat material structure installed on the fixed plate (1) flattens the asphalt output.
2. The low-temperature asphalt paving device for road and bridge construction according to claim 1, characterized in that: The discharge assembly includes a first motor (7), a rotating rod (8), and a rotating plate (9). The first motor (7) is fixedly installed on the rear outer wall of the storage box (2). The rotating rod (8) is rotatably installed on the front and rear sides of the storage box (2). The rotating plate (9) is fixedly installed on the outer wall of the rotating rod (8). The rotating plate (9) is in contact with the inner wall of the fixed plate (1). The output shaft of the first motor (7) is fixedly installed on one end of the rotating rod (8).
3. The low-temperature asphalt paving device for road and bridge construction according to claim 2, characterized in that: The moving component includes a fixed shaft plate (4), a rotating shaft (5), and a moving wheel (6). The fixed shaft plate (4) is fixedly installed on the bottom of the fixed plate (1), the rotating shaft (5) is rotatably installed on the fixed shaft plate (4), and the moving wheel (6) is fixedly installed on the outer wall of the rotating shaft (5).
4. The low-temperature asphalt paving device for road and bridge construction according to claim 3, characterized in that: The transmission assembly includes a synchronous pulley A (10), a synchronous pulley B (11), and a synchronous belt (12). The synchronous pulley A (10) is fixedly installed on the outer wall of the rotating rod (8), the synchronous pulley B (11) is fixedly installed on the outer wall of the rotating shaft (5), and the synchronous belt (12) is sleeved on the synchronous pulley A (10) and the synchronous pulley B (11), and the synchronous belt (12) meshes with both the synchronous pulley A (10) and the synchronous pulley B (11).
5. The low-temperature asphalt paving device for road and bridge construction according to claim 4, characterized in that: The flat material structure includes a fixed shaft (15), a flat plate (16), a second motor (17), a worm (18), and a worm wheel (19). The fixed plate (1) has an installation opening. The fixed shaft (15) is fixedly installed on the front and rear sides of the installation opening. The flat plate (16) is rotatably installed on the outer wall of the fixed shaft (15). The second motor (17) is fixedly installed on the top of the fixed plate (1). The worm (18) is fixedly installed on the output shaft of the second motor (17). The worm wheel (19) is fixedly installed on the outer wall of the flat plate (16), and the worm wheel (19) meshes with the worm (18).
6. The low-temperature asphalt paving device for road and bridge construction according to claim 5, characterized in that: A chute is provided on one side of the discharge port, and an L-shaped insert plate (14) is slidably installed in the chute.
7. A low-temperature asphalt paving device for road and bridge construction according to claim 6, characterized in that: An electric push rod (13) is fixedly installed at the bottom of the fixed plate (1), and the free end of the electric push rod (13) is fixedly installed on one side of the L-shaped insert plate (14).