An automated, unmanned road paving construction equipment

By designing automated road paving equipment, continuous material supply and width adjustment were achieved during the paving process, solving the problems of equipment shutdown and material quality, and improving construction efficiency and applicability.

CN117090107BActive Publication Date: 2026-01-30NANJING NINGTONG INTELLIGENT TRANSPORTATION TECH RES INST CO LTD
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Patent Information

Application Number
CN202311222818.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-09-21
Publication Date
2026-01-30
Estimated Expiration
2043-09-21

AI Technical Summary

Technical Problem

Existing automated paving equipment requires shutdown when materials are replenished, which affects work efficiency and paving continuity. Furthermore, the quality of materials is easily affected by environmental factors during transportation.

Method used

An automated, unmanned road paving construction device was designed, comprising a mixing mechanism and a paving mechanism. It can continuously supply materials during the paving process and adjust the paving width and material ratio through an automatic control system to ensure material quality and paving continuity.

Benefits of technology

It enables continuous material supply without shutting down the equipment during the paving process, ensuring material quality, improving work efficiency and paving applicability, and saving labor and material costs.

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Abstract

This invention relates to the field of construction equipment technology, specifically to an automated unmanned road paving construction device. It includes a paving frame, on which a material mixing mechanism for processing materials and a paving mechanism for spreading materials are mounted. The mixing mechanism includes a mixing tank, on which a mixing component and a blending component are installed. The purpose of this invention is to provide an automated unmanned road paving construction device that allows for material replenishment during the paving process without shutting down the entire equipment. This avoids the need to shut down the equipment for material replenishment, thus improving work efficiency, and allows for continuous material supply, preventing disruption to the continuity of paving and subsequent compaction work. Furthermore, on-site preparation and use saves on transportation and loading operations, ensuring material quality and preventing the prepared materials from being affected by environmental or other factors during transportation and replenishment, thus avoiding quality degradation.
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Description

Technical Field

[0001] This invention relates to the field of construction equipment technology, specifically to an automated, unmanned road paving construction device. Background Technology

[0002] With the continuous development of the social economy and the continuous improvement of people's living standards, many families own private cars. Due to the increasing number of private cars, severe traffic pressure has been brought to highways. Therefore, highway management departments are vigorously developing highway construction. In the process of highway construction, concrete pavement screed machines are often used to level the road surface. Generally, road building materials are distributed relatively evenly by hand with shovels, but this method consumes a lot of manpower and time, reducing work efficiency. Therefore, in recent years, with the continuous development of microprocessors and the improved practicality of low-cost computers, sensing and communication technologies, automation technology for engineering construction, especially automated road paving construction, has become possible.

[0003] However, in current automated paving construction, before material is laid, workers need to replenish the prepared materials to the automatic paver in advance. When replenishing materials, the automatic paver also needs to be turned off, and then turned on again after the materials are replenished. If there is insufficient material during the paving process, the automatic paver will be shut down, which will affect work efficiency and the continuity of road paving and subsequent compaction work. Summary of the Invention

[0004] The purpose of this invention is to provide an automated, unmanned road paving construction device that can replenish raw materials during the paving process without shutting down the entire equipment. This avoids the need to shut down the equipment for material replenishment, thus improving work efficiency, and allows for continuous material supply, preventing disruption to the continuity of paving and subsequent compaction work. Furthermore, on-site preparation and use saves on transportation and material loading operations, ensuring material quality and preventing the prepared materials from being affected by environmental or other factors during transportation and replenishment, which could lead to a decline in material quality.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an automated unmanned road paving construction device, comprising a paving frame, a material mixing mechanism for processing materials, and a paving mechanism for spreading materials; the mixing mechanism includes a mixing tank, a mixing component and a blending component, the blending component including a first material tank and a second material tank, both the first and second material tanks being equipped with a moving shaft, and a baffle plate being installed on the moving shaft; the paving mechanism includes a mounting frame, the mounting frame being equipped with a connecting box connected to the mixing tank, one end of the connecting box being equipped with a discharge pipe, and a sealing post being movably connected to the discharge pipe and the sealing post being movably connected to the baffle plate; according to the change in road width, the mounting frame automatically changes the paving width, and simultaneously, according to the change in the paving width of the mounting frame, automatically adjusts the first and second material tanks to discharge materials at different ratios, thereby controlling the amount of material to be paved inside the mixing tank.

[0006] Optionally, the stirring assembly includes a motor B mounted on a mixing tank, with a stirring rod installed at the output end of the motor B, the stirring rod being located inside the mixing tank.

[0007] Optionally, the dispensing assembly further includes a fixed base mounted on the paver frame, on which a movable plate is movably disposed.

[0008] Optionally, the dispensing assembly also includes a motor A mounted on the paver frame, with a gear A mounted on the output end of the motor A, and the gear A meshing with one side of the moving plate.

[0009] Optionally, one end of the moving shaft is provided with a feeding ball. There are two feeding balls of different sizes located inside the first material tank and the second material tank, respectively. The inner walls of the first material tank and the second material tank are provided with inclined surfaces, and the feeding balls are movably connected to the inclined surfaces.

[0010] Optionally, the mounting frame is connected to the paver frame, and the paving mechanism further includes a mud pump installed on the mixing tank, with a discharge pipe installed at one end of the mud pump, and the discharge pipe is connected to the connecting box.

[0011] Optionally, the paving mechanism further includes support A and support B, a threaded rod is provided on the connecting box, a gear B is provided on the threaded rod, a threaded cylinder is provided on the threaded rod, one end of the threaded cylinder is connected to the shielding plate, and both support A and support B are provided with gear teeth, which mesh with gear B.

[0012] Optionally, both bracket B and bracket A are provided with support plates, the support plates are connected to sealing plates, and both the mounting frame and the feeding pipe are provided with sliding grooves for the support plates to slide, and the sealing plates are movably connected to the sliding grooves.

[0013] Optionally, the connecting box is provided with a leakage groove, the sealing column is connected to the support plate, and the sealing column is movably connected to the leakage groove.

[0014] Optionally, the mounting bracket is provided with a smoothing roller.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. This invention allows for continuous material supply during the paving process; additional materials can be added only when needed, without shutting down the entire equipment. This avoids the need to stop the equipment for material replenishment, thus improving work efficiency, and ensures continuous material supply, preventing disruptions to the continuity of paving and subsequent compaction. Furthermore, this on-site preparation and use method saves on transportation and material loading operations, guarantees material quality, and prevents the prepared materials from being affected by environmental or other factors during transportation and replenishment, which could lead to a decline in material quality and consequently, unqualified paving work.

[0017] 2. This invention can automatically change the paving width according to the path, which on the one hand avoids the need for manual adjustment according to the path, saving manpower and improving work efficiency; on the other hand, the flexible adjustable paving width design greatly improves the applicability of paving work.

[0018] 3. On the one hand, this invention can ensure continuous material supply without causing excessive material accumulation, thus guaranteeing material quality and avoiding the situation where excessive material production leads to a backlog of unusable material, affecting material quality. On the other hand, it can adjust the material production volume according to the paving width, making the production volume as consistent as possible with the usage volume, thereby saving materials and reducing costs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is one of the cross-sectional views of the shielding plate of the present invention;

[0021] Figure 3 This is a second cross-sectional view of the shielding plate of the present invention;

[0022] Figure 4 This is a partial cross-sectional view of the mixing mechanism of the present invention;

[0023] Figure 5 This is a second partial cross-sectional view of the mixing mechanism of the present invention;

[0024] Figure 6 This is a partial cross-sectional view of the paving mechanism of the present invention;

[0025] Figure 7This is a second partial cross-sectional view of the paving mechanism of the present invention;

[0026] Figure 8 This is a partial cross-sectional view of the paving mechanism of the present invention, part three.

[0027] In the diagram: 1. Paver frame; 2. Mixing mechanism; 21. Mixing tank; 22. First tank; 23. Second tank; 24. Baffle plate; 25. Gear A; 26. Motor A; 27. Fixed base; 28. Moving plate; 29. ​​Motor B; 210. Mixing roller; 211. Moving shaft; 212. Discharge ball; 3. Paver mechanism; 31. Mounting frame; 32. Support A; 33. Support B; 34. Discharge pipe; 35. Threaded rod; 36. Threaded cylinder; 37. Mud pump; 38. Smoothing roller; 310. Connecting box; 311. Discharge pipe; 312. Sealing plate; 313. Support plate; 314. Sealing column; 315. Gear tooth; 316. Gear B. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0029] Please see Figures 1 to 8 The present invention provides an automated unmanned road paving construction equipment, including a paving frame 1, a mixing mechanism 2 for processing materials on the paving frame 1, and a paving mechanism 3 for spreading materials on the paving frame 1.

[0030] The mixing mechanism 2 includes a mixing tank 21, on which a stirring component and a mixing component are provided. The mixing component includes a first material tank 22 and a second material tank 23. Both the first material tank 22 and the second material tank 23 are provided with a moving shaft 211, and a baffle plate 24 is provided on the moving shaft 211.

[0031] When in use, the ingredients are placed inside the first material tank 22 and the second material tank 23 respectively. The motor B29 is started and the output end of the motor B29 drives the mixing roller 210 to work. The mixing roller 210 can mix the ingredients inside the mixing tank 21 for paving. In addition, the paving vehicle frame 1 is equipped with sensors, laser rangefinders and automatic control systems to realize automated control of road paving work.

[0032] This allows for continuous material supply during the paving process. Furthermore, materials can be replenished only when needed, eliminating the need to shut down the entire equipment. This avoids downtime during replenishment, which would impact work efficiency, and ensures continuous material supply, preventing disruptions to paving continuity and subsequent compaction. Additionally, this on-site preparation and use method saves on transportation and loading operations, guarantees material quality, and prevents the prepared materials from being affected by environmental or other factors during transportation and replenishment, which could lead to a decline in material quality and consequently, substandard paving work.

[0033] The paving mechanism 3 includes a mounting frame 31, on which a connecting box 310 connected to the mixing tank 21 is provided. One end of the connecting box 310 is provided with a discharge pipe 311, and a sealing post 314 is movably mounted on the discharge pipe 311. The sealing post 314 is movably connected to the baffle plate 24.

[0034] The material inside the mixing tank 21 can be transported to the inside of the discharge pipe 34 by the mud pump 37, and then transported to the inside of the connecting box 310 by the discharge pipe 34. The material then enters the inside of the mounting frame 31, and then flows out from the leakage trough on the mounting frame 31 for spreading. Finally, it is smoothed by the smoothing roller 38.

[0035] Alternatively, a certain amount of material can be pre-mixed inside the mixing tank 21 before paving. Alternatively, the material can be transported to the mounting frame 31 and the connecting box 310 via the mud pump 37. Then, the mud pump 37 can be turned off, allowing the material to be pre-mixed inside the mixing tank 21 for a certain period before the mud pump 37 is restarted to deliver the material. Through the timed delivery design, the paving quality can be monitored in real time based on a certain amount of material paved along a specific path, further ensuring the paving quality.

[0036] Additionally, during the paving process or when starting the next section of the path, when the paving width changes, the automatic control system controls motor A26 to operate. The output of motor A26 drives gear A25 to rotate. Since gear A25 is meshed with one side of moving plate 28, the rotation of gear A25 drives moving plate 28 to move. Moving plate 28 slides on fixed seat 27. The sliding of moving plate 28 drives blocking plate 24 to move. The movement of blocking plate 24 drives threaded cylinder 36 to move. Since the inner wall of threaded cylinder 36 is helically connected to the outer side of threaded rod 35, the movement of threaded cylinder 36 drives threaded rod 35 to rotate. The rotation of threaded rod 35 drives gear A26 to rotate. When gear B316 rotates, it drives the support B33 and support A32 to move through meshing with gear teeth 315. Supports B33 and support A32 then drive the support plate 313 to move. The support plate 313 slides on the groove and drives the sealing column 314 to move. As a result, the two sealing columns 314 move in opposite directions at the same time, changing the positional relationship between the sealing column 314 and the leakage groove on the discharge pipe 311. This allows the paving width to be automatically changed according to the path, avoiding manual adjustments based on path two, saving manpower and improving work efficiency. Furthermore, the flexible adjustable paving width design greatly improves the applicability of paving work.

[0037] In addition, when adjusting the paving width, the shield 24 will drive the moving shaft 211 to move, and the moving shaft 211 will drive the feeding ball 212 to move. Since the inner walls of the first material tank 22 and the second material tank 23 are both provided with inclined surfaces, the gap between the feeding ball 212 and the inclined surface will change accordingly, thereby controlling the feeding amount of the first material tank 22 and the second material tank 23.

[0038] Therefore, the material feeding amount of the first material tank 22 and the second material tank 23 can be adjusted according to the paving width. When the paving width narrows, the material feeding amount of the first material tank 22 and the second material tank 23 can be reduced, thereby controlling the amount of material inside the mixing tank 21 to be less. Conversely, when the paving width narrows, the amount of material inside the mixing tank 21 can be increased. On the one hand, this can ensure continuous material supply without the problem of excessive material accumulation, thus ensuring material quality and avoiding the situation where excessive material is produced and some material accumulates and cannot be used in time, affecting the quality of the material. On the other hand, adjusting the material production amount according to the paving width can make the material production amount as consistent as possible with the usage amount, thereby saving materials and reducing costs.

[0039] In addition, the shield 24 can provide rain and sun protection to prevent the material from being exposed to the sun or rain, thus affecting the material's performance.

[0040] According to the change in road width, the mounting frame 31 automatically changes the paving width. At the same time, according to the change in the paving width of the mounting frame 31, the first material tank 22 and the second material tank 23 are automatically adjusted to feed materials in different proportions, thereby controlling the amount of material to be paved inside the mixing tank 21.

[0041] The mixing assembly includes a motor B29 mounted on the mixing tank 21, with a mixing roller 210 mounted on the output end of the motor B29. The mixing roller 210 is located inside the mixing tank 21. The mixing assembly also includes a fixed seat 27 mounted on the paver frame 1, with a movable plate 28 movably mounted on the fixed seat 27. The mixing assembly also includes a motor A26 mounted on the paver frame 1, with a gear A25 mounted on the output end of the motor A26. The gear A25 meshes with one side of the movable plate 28. One end of the movable shaft 211 is provided with a discharge ball 212. There are two discharge balls 212 of different sizes, located inside the first material tank 22 and the second material tank 23 respectively. The inner walls of the first material tank 22 and the second material tank 23 are both provided with inclined surfaces, and the discharge balls 212 are movably connected to the inclined surfaces.

[0042] The mounting frame 31 is connected to the paver frame 1. The paving mechanism 3 also includes a mud pump 37 mounted on the mixing tank 21. One end of the mud pump 37 is equipped with a discharge pipe 34, which is connected to the connecting box 310. The paving mechanism 3 also includes a bracket A32 and a bracket B33. A threaded rod 35 is provided on the connecting box 310. A gear B316 is provided on the threaded rod 35. A threaded cylinder 36 is provided on the threaded rod 35. One end of the threaded cylinder 36 is connected to the shielding plate 24. Both bracket A32 and bracket B33 are equipped with... There is a gear tooth 315, which meshes with the gear B316. Support plates 313 are provided on both bracket B33 and bracket A32. Support plates 313 are connected to sealing plates 312. Slide grooves for sliding of support plates 313 are provided on both mounting frame 31 and feed pipe 311. Sealing plates 312 are movably connected to slide grooves. A leakage groove is provided on the connecting box 310. Sealing column 314 is connected to support plate 313 and movably connected to leakage groove. Smoothing roller 38 is provided on mounting frame 31.

[0043] Working principle: When in use, the ingredients are placed inside the first material tank 22 and the second material tank 23 respectively. The motor B29 is started and the output end of the motor B29 drives the mixing roller 210 to work. The mixing roller 210 can mix the ingredients inside the mixing tank 21 for paving. In addition, the paving vehicle frame 1 is equipped with sensors, laser rangefinders and automatic control systems to realize automated control of road paving work.

[0044] This allows for continuous material supply during the paving process. Furthermore, materials can be replenished only when needed, eliminating the need to shut down the entire equipment. This avoids downtime during replenishment, which would impact work efficiency, and ensures continuous material supply, preventing disruptions to paving continuity and subsequent compaction. Additionally, this on-site preparation and use method saves on transportation and loading operations, guarantees material quality, and prevents the prepared materials from being affected by environmental or other factors during transportation and replenishment, which could lead to a decline in material quality and consequently, substandard paving work.

[0045] The material inside the mixing tank 21 can be transported to the inside of the discharge pipe 34 by the mud pump 37, and then transported to the inside of the connecting box 310 by the discharge pipe 34. The material then enters the inside of the mounting frame 31, and then flows out from the leakage trough on the mounting frame 31 for spreading. Finally, it is smoothed by the smoothing roller 38.

[0046] Alternatively, a certain amount of material can be pre-mixed inside the mixing tank 21 before paving. Alternatively, the material can be transported to the mounting frame 31 and the connecting box 310 via the mud pump 37. Then, the mud pump 37 can be turned off, allowing the material to be pre-mixed inside the mixing tank 21 for a certain period before the mud pump 37 is restarted to deliver the material. Through the timed delivery design, the paving quality can be monitored in real time based on a certain amount of material paved along a specific path, further ensuring the paving quality.

[0047] Additionally, during the paving process or when starting the next section of the path, when the paving width changes, the automatic control system controls motor A26 to operate. The output of motor A26 drives gear A25 to rotate. Since gear A25 is meshed with one side of moving plate 28, the rotation of gear A25 drives moving plate 28 to move. Moving plate 28 slides on fixed seat 27. The sliding of moving plate 28 drives blocking plate 24 to move. The movement of blocking plate 24 drives threaded cylinder 36 to move. Since the inner wall of threaded cylinder 36 is helically connected to the outer side of threaded rod 35, the movement of threaded cylinder 36 drives threaded rod 35 to rotate. The rotation of threaded rod 35 drives gear A26 to rotate. When gear B316 rotates, it drives the support B33 and support A32 to move through meshing with gear teeth 315. Supports B33 and support A32 then drive the support plate 313 to move. The support plate 313 slides on the groove and drives the sealing column 314 to move. As a result, the two sealing columns 314 move in opposite directions at the same time, changing the positional relationship between the sealing column 314 and the leakage groove on the discharge pipe 311. This allows the paving width to be automatically changed according to the path, avoiding manual adjustments based on path two, saving manpower and improving work efficiency. Furthermore, the flexible adjustable paving width design greatly improves the applicability of paving work.

[0048] In addition, when adjusting the paving width, the shield 24 will drive the moving shaft 211 to move, and the moving shaft 211 will drive the feeding ball 212 to move. Since the inner walls of the first material tank 22 and the second material tank 23 are both provided with inclined surfaces, the gap between the feeding ball 212 and the inclined surface will change accordingly, thereby controlling the feeding amount of the first material tank 22 and the second material tank 23.

[0049] Therefore, the material feeding amount of the first material tank 22 and the second material tank 23 can be adjusted according to the paving width. When the paving width narrows, the material feeding amount of the first material tank 22 and the second material tank 23 can be reduced, thereby controlling the amount of material inside the mixing tank 21 to be less. Conversely, when the paving width narrows, the amount of material inside the mixing tank 21 can be increased. On the one hand, this can ensure continuous material supply without the problem of excessive material accumulation, thus ensuring material quality and avoiding the situation where excessive material is produced and some material accumulates and cannot be used in time, affecting the quality of the material. On the other hand, adjusting the material production amount according to the paving width can make the material production amount as consistent as possible with the usage amount, thereby saving materials and reducing costs.

[0050] In addition, the shield 24 can serve to protect against rain and sun, preventing the material from being exposed to the sun or rain and affecting its performance.

[0051] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A road paving automatic unmanned construction equipment comprising a paving carriage (1), characterized in that, The paving truck frame (1) is provided with a material processing mixing mechanism (2), and the paving truck frame (1) is provided with a material paving paving mechanism (3); The mixing mechanism (2) comprises a mixing tank (21), the mixing tank (21) is provided with a stirring assembly and a dispensing assembly, the dispensing assembly comprises a first tank (22) and a second tank (23), the first tank (22) and the second tank (23) are provided with a moving shaft (211), the moving shaft (211) is provided with a baffle (24), one end of the moving shaft (211) is provided with a discharging ball (212), the two discharging balls (212) are of different specifications and are located in the interiors of the first tank (22) and the second tank (23) respectively, the inner walls of the first tank (22) and the second tank (23) are provided with inclined surfaces, and the discharging ball (212) is movably connected with the inclined surface; The dispensing assembly further comprises a fixing seat (27) mounted on the paving truck frame (1), the fixing seat (27) is movably provided with a moving plate (28), and the dispensing assembly further comprises a motor A (26) mounted on the paving truck frame (1), the output end of the motor A (26) is provided with a gear A (25), the gear A (25) is in meshing connection with one side of the moving plate (28), and the sliding of the moving plate (28) drives the baffle (24) to move; The paving mechanism (3) comprises a mounting frame (31), the mounting frame (31) is provided with a communication box (310) connected with the mixing tank (21), one end of the communication box (310) is provided with a discharging pipe (311), the discharging pipe (311) movably has a sealing column (314), and the sealing column (314) is movably connected with the baffle (24); The paving mechanism (3) further comprises a support A (32) and a support B (33), the communication box (310) is provided with a threaded rod (35), the threaded rod (35) is provided with a gear B (316), the threaded rod (35) is provided with a threaded cylinder (36), one end of the threaded cylinder (36) is connected with the baffle (24), the support A (32) and the support B (33) are provided with gear teeth (315), and the gear teeth (315) are in meshing connection with the gear B (316); The support B (33) and the support A (32) are provided with supporting plates (313), the supporting plates (313) are connected with sealing plates (312), the mounting frame (31) and the discharging pipe (311) are provided with sliding grooves for the sliding of the supporting plates (313), and the sealing plates (312) are movably connected with the sliding grooves; According to the change of the road section width, the mounting frame (31) automatically changes the paving width, at the same time, according to the change of the paving width of the mounting frame (31), the discharging amounts of the first tank (22) and the second tank (23) are automatically adjusted at different ratios, so as to control the material amount to be paved in the mixing tank (21).

2. The automatic unmanned road paving construction equipment according to claim 1, characterized in that, The stirring assembly comprises a motor B (29) installed on the mixing tank (21), an output end of the motor B (29) is provided with a stirring rod (210), and the stirring rod (210) is located in the interior of the mixing tank (21).

3. The automatic unmanned road paving construction equipment according to claim 1, characterized in that, The mounting frame (31) is connected with the paver frame (1), the paving mechanism (3) further comprises a slurry pump (37) installed on the mixing tank (21), one end of the slurry pump (37) is provided with a discharging pipe (34), and the discharging pipe (34) is communicated with the communication box (310).

4. The automatic unmanned road paving construction equipment according to claim 1, characterized in that, A liquid leakage groove is arranged on the communication box (310), the sealing column (314) is connected with the supporting plate (313), and the sealing column (314) is movably connected with the liquid leakage groove.

5. The automatic unmanned road paving construction equipment according to claim 1, characterized in that, The mounting frame (31) is provided with a smoothing roller (38).

Citation Information

Patent Citations

  • Asphalt paver capable of automatically adjusting paving width

    CN210368541U