Ultrathin wearing layer asphalt laying device

The asphalt raw materials are screened and improved through the ultra-thin wear layer asphalt paving device, which solves the problems of inconsistent hardness, uneven pavement and long construction period in the existing asphalt pavement maintenance methods, and achieves the effect of rapid, flat and single-forming of the pavement.

CN119933003APending Publication Date: 2025-05-06CHINA RAILWAY FIRST GROUP CO LTD +4
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Patent Information

Application Number
CN202510215512.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-26
Publication Date
2025-05-06

AI Technical Summary

Technical Problem

The existing asphalt pavement maintenance methods have problems such as inconsistent hardness, uneven road surfaces and long construction periods, which affect the usability and safety of the road.

Method used

The asphalt laying device is used to screen and improve the asphalt raw materials through the emulsified asphalt storage and asphalt mixture storage to produce asphalt mixture with a thickness of 10-15 mm. The asphalt mixture is immediately laid after the emulsified asphalt is laid, and the rolling molding is completed through the roller to ensure that the road surface is formed at one time.

Benefits of technology

It realizes rapid, leveling and one-time molding of pavement, saves construction period and improves the usability and safety of the road.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses an ultrathin wearing layer asphalt laying device which comprises a frame body, an emulsified asphalt storage device and an asphalt mixture storage device are arranged on the frame body, and wheels and a road roller are arranged at the two ends of the frame body respectively. The emulsified asphalt storage device discharges emulsified asphalt through an emulsified asphalt outlet pipe arranged at the bottom of the frame body, the asphalt mixture storage device discharges a mixture through a mixture outlet pipe arranged at the bottom of the frame body, and a distance detector is arranged in front of the emulsified asphalt outlet pipe; the processor controls the outflow volume of the emulsified asphalt storage device and the outflow volume of the asphalt mixture storage device according to the distance detected by the distance detector. The ultra-thin wearing layer asphalt mixture pavement surface layer is manufactured by screening and improving asphalt raw materials, and then is immediately paved on the pavement and formed at one time, and the original asphalt pavement does not need to be repaired or re-paved, so that the construction period is shortened, and the usability of the road can be ensured.
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Description

Technical Field

[0001] The invention relates to the technical field of building construction, in particular to an ultra-thin wearing layer asphalt paving device. Background Art

[0002] With the rapid development of modern transportation industry, the road traffic volume and speed are increasing, and the performance requirements for road materials are also increasing. Traditional asphalt pavement is prone to rutting, cracks, and reduced anti-skid performance during long-term use, affecting driving safety and comfort. Therefore, road maintenance units need to maintain damaged asphalt pavement from time to time.

[0003] There are usually two ways to maintain asphalt pavement. The first is to repair the asphalt pavement, and the second is to flatten the original asphalt pavement and then repair the new asphalt pavement. These two maintenance methods have their own advantages and disadvantages. Although the first method can greatly improve the construction period, the hardness of the repaired pavement will be different due to the different composition of asphalt before and after, and the pavement will be uneven and easy to break. It needs to be repaired repeatedly later, and the usability is not high. Although the second method can ensure the flatness and hardness consistency of the pavement, it requires a longer construction period. Therefore, both methods need to be improved. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an ultra-thin wearing layer asphalt paving device in view of the deficiencies in the above-mentioned prior art. By screening and improving the asphalt raw materials, an asphalt mixture pavement surface layer with a thickness of 10-15 mm is produced, and then it is immediately paved on the pavement and formed in one step. There is no need to repair or repave the original asphalt pavement, which not only saves construction time but also ensures the usability of the road.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: an ultra-thin wear layer asphalt paving device, comprising a frame body, on which an emulsified asphalt storage device and an asphalt mixture storage device are respectively provided, and wheels and a roller are respectively provided at both ends of the frame body;

[0006] The emulsified asphalt storage device discharges the emulsified asphalt through an emulsified asphalt outlet pipe provided at the bottom of the frame body, and the asphalt mixture storage device discharges the mixture through a mixture outlet pipe provided at the bottom of the frame body, the emulsified asphalt outlet pipe is located in front of the mixture outlet pipe in the forward direction of the asphalt paving device, and a distance detector is provided in front of the emulsified asphalt outlet pipe;

[0007] The asphalt paving device further comprises a power supply and a processor, wherein the processor is respectively connected to the distance detector, the emulsified asphalt storage device, the asphalt mixture storage device and the road roller by signal, and the power supply is respectively connected to the processor, the distance detector, the emulsified asphalt storage device, the asphalt mixture storage device and the road roller by electrical connection;

[0008] The processor controls the outflow of the emulsified asphalt storage device and the asphalt mixture storage device respectively according to the distance detected by the distance detector.

[0009] Further, the asphalt mixture storage device comprises a box body arranged on the frame body, the interior of the box body is divided into an upper area and a lower area, wherein the upper area is further divided into a fine aggregate area and a coarse aggregate area, the fine aggregate area is used to store fine aggregate, the fine aggregate area is separated from the lower area by a fine aggregate partition, a first opening is provided on the fine aggregate partition, a fine aggregate cover is provided on the first opening through a first switch, the coarse aggregate area is used to process the stored coarse aggregate into fine aggregate, the coarse aggregate area is separated from the lower area by a coarse aggregate partition, a second opening is provided on the coarse aggregate partition, a coarse aggregate cover is provided on the second opening through a second switch; a stirring mechanism is provided in the lower area;

[0010] The processor controls the states of the first switch and the second switch respectively, and when the lower area has fine aggregate and processed coarse aggregate, the processor controls the stirring mechanism to operate.

[0011] Furthermore, the stirring mechanism includes a motor fixed to one side wall of the box body, the output shaft of the motor is connected to one end of a stirring rod, and the other end of the stirring rod is connected to the other side wall of the box body through a bearing;

[0012] The processor controls the motor to drive the stirring mechanism.

[0013] Furthermore, the rod body of the stirring rod is an S-shaped rod body.

[0014] Furthermore, a coarse aggregate inlet is provided at the top of the coarse aggregate region, and a fine aggregate inlet is provided at the top of the fine aggregate region.

[0015] Furthermore, the coarse aggregate area is divided into an upper part and a lower part by a grid plate, and a stone crusher is arranged in the upper part;

[0016] The processor controls the stone crusher to process the coarse aggregate, and the processed coarse aggregate passes through the grid plate and is stored in the lower part.

[0017] Furthermore, the stone crusher includes a rotating shaft arranged on the inner wall of the box body, and a plurality of stone breakers are evenly arranged on the circumference of the rotating shaft along its length direction.

[0018] Furthermore, the roller comprises a roller, the axis of which is provided with a roller shaft, the roller rotates around the roller shaft, and a portion of the roller shaft extending out of the roller is connected to the frame body via a connecting piece.

[0019] Furthermore, counterweight gravel is arranged inside the roller.

[0020] Furthermore, the roller is provided with a plurality of collars, each of which is connected to a telescopic propeller, and the telescopic end of each telescopic propeller is connected to the same striking block, and the inner ring diameter of the collar is larger than the diameter of the roller;

[0021] The processor controls the telescopic propeller to perform rhythmic telescoping, so that the striking block strikes the counterweight gravel.

[0022] Compared with the prior art, the present invention has the following advantages:

[0023] The present invention provides an ultra-thin wear layer asphalt paving device, which screens and improves asphalt raw materials through an asphalt mixture storage device to produce an asphalt mixture with a thickness of 10-15 mm for paving the surface layer of the road surface. During paving, the emulsified asphalt is first paved on the existing road surface through the emulsified asphalt storage device to play a bonding role, and then the asphalt mixture is paved, and finally the road roller is used to complete the rolling, so as to ensure that the road surface is paved and formed once, and there is no need to repair or re-pave the original asphalt road surface, which not only saves construction time but also ensures the usability of the road;

[0024] The present invention provides an ultra-thin wearing layer asphalt paving device. In order to ensure the overall flatness of the road surface, a distance detector is set to detect the flatness of the road surface, and the outflow of the emulsified asphalt storage device and the asphalt mixture storage device is controlled according to the flatness of the road surface, thereby ensuring the flatness of the paved road surface.

[0025] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of the overall structure of an ultra-thin wearing layer asphalt paving device provided by the present invention.

[0027] Figure 2 It is a schematic diagram of the internal structure of the asphalt mixture storage device in the present invention.

[0028] Figure 3 for Figure 2 A magnified view of the structure within the dashed box.

[0029] Figure 4 It is a schematic diagram of the structure inside the roller of the present invention.

[0030] Description of reference numerals:

[0031] 1. Frame body; 2. Emulsified asphalt storage; 3. Asphalt mixture storage; 3-1. Box; 3-2. Fine aggregate area; 3-3. Fine aggregate inlet; 3-4. Coarse aggregate inlet; 3-5. Stone crusher; 3-5-1. Stone beater; 3-5-2. Rotating shaft; 3-6. Grid plate; 3-7. Coarse aggregate area; 3-8. Coarse aggregate partition; 3-9. Coarse aggregate cover; 3-10. Fine aggregate partition; 3-11. Fine aggregate cover; 3-12. Motor; 3-13. Agitator rod; 3-14. Bearing; 4. Connector; 5. Roller; 6. Roller; 7. Mixture outlet pipe; 8. Emulsified asphalt outlet pipe; 9. Distance detector; 10. Wheel; 11. Ring; 12. Telescopic thruster; 13. Beating block. DETAILED DESCRIPTION

[0032] like Figure 1-4 As shown, the present invention provides an ultra-thin wear layer asphalt paving device, comprising a frame body 1, on which an emulsified asphalt storage device 2 and an asphalt mixture storage device 3 are respectively provided, and wheels 10 and a road roller are respectively provided at both ends of the frame body 1;

[0033] The emulsified asphalt storage 2 discharges the emulsified asphalt through the emulsified asphalt outlet pipe 8 provided at the bottom of the frame body 1, and the asphalt mixture storage 3 discharges the mixture through the mixture outlet pipe 7 provided at the bottom of the frame body 1. The emulsified asphalt outlet pipe 8 is located in front of the mixture outlet pipe 7 in the forward direction of the asphalt paving device, and a distance detector 9 is provided in front of the emulsified asphalt outlet pipe 8;

[0034] The asphalt paving device further includes a power supply and a processor, wherein the processor is respectively connected to the distance detector 9, the emulsified asphalt storage 2, the asphalt mixture storage 3 and the roller by signal, and the power supply is respectively connected to the processor, the distance detector 9, the emulsified asphalt storage 2, the asphalt mixture storage 3 and the roller by electrical connection;

[0035] The processor controls the outflow of the emulsified asphalt storage 2 and the asphalt mixture storage 3 respectively according to the distance detected by the distance detector 9.

[0036] In actual construction, construction workers load asphalt mixture into asphalt mixture storage device 3. Asphalt mixture includes coarse aggregate and fine aggregate. Coarse aggregate and fine aggregate are divided according to size. Fine aggregate is 0-3mm limestone machine-made sand or basalt diabase machine-made sand, and coarse aggregate is 3-5mm and 5-8mm basalt diabase crushed stone. Ruhua asphalt is transferred into emulsified asphalt storage device 2, and then paving is started. During paving, since the asphalt paving device moves forward, the distance detector 9 will detect a distance in real time. The distance is used to judge the flatness of the original road surface, and the outflow of emulsified asphalt storage device 2 and asphalt mixture storage device 3 is controlled according to the flatness to ensure that the road surface after paving is flat and smooth. Generally, the greater the distance detected by the distance detector 9, the greater the outflow of emulsified asphalt storage device 2 and asphalt mixture storage device 3 is controlled at the current moment. Therefore, the outflow of emulsified asphalt storage device 2 and asphalt mixture storage device 3 changes in real time.

[0037] In the present invention, the hot-mix asphalt mixture is designed to have a void ratio of not less than 10%. The difference between the paving process and that of ordinary asphalt mixtures is that the paver spreads the emulsified asphalt while spreading the hot-mix asphalt mixture, so that the hot-mix asphalt mixture is spread on the emulsified asphalt working surface just spread, so that its water evaporates and the emulsion is quickly broken, so as to achieve effective bonding between the ultra-thin wear layer and the original asphalt pavement. The simultaneous construction and rolling molding have the functions of anti-skid, anti-wear, anti-rutting, water-sealing, anti-fog, and low noise.

[0038] Furthermore, the present invention further introduces the asphalt mixture storage device 3, the asphalt mixture storage device 3 comprises a box body 3-1 arranged on the frame body 1, the interior of the box body 3-1 is divided into an upper area and a lower area, wherein the upper area is further divided into a fine aggregate area 3-2 and a coarse aggregate area 3-7, the fine aggregate area 3-2 is used to store fine aggregate, the fine aggregate area 3-2 is separated from the lower area by a fine aggregate partition 3-10, a first opening is provided on the fine aggregate partition 3-10, a fine aggregate cover plate 3-11 is provided on the first opening through a first switch, the coarse aggregate area 3-7 is used to process the stored coarse aggregate into fine aggregate, the coarse aggregate area 3-7 is separated from the lower area by a coarse aggregate partition 3-8, a second opening is provided on the coarse aggregate partition 3-8, a coarse aggregate cover plate 3-9 is provided on the second opening through a second switch; a stirring mechanism is provided in the lower area;

[0039] The processor controls the states of the first switch and the second switch respectively, and when the lower area has fine aggregate and processed coarse aggregate, the processor controls the stirring mechanism to operate.

[0040] The present invention controls the first switch and the second switch so that the fine aggregate in the fine aggregate area 3-2 and the processed coarse aggregate in the coarse aggregate area 3-7 fall into the lower area respectively, so that the two aggregates are evenly mixed by the mixing mechanism in the lower area and then discharged and laid through the mixture outlet pipe 7.

[0041] Among them, the stirring mechanism of the present invention includes a motor 3-12 fixed on one side wall of the box body 3-1, the output shaft of the motor 3-12 is connected to one end of the stirring rod 3-13, and the other end of the stirring rod 3-13 is connected to the other side wall of the box body 3-1 through a bearing 3-14; the processor controls the motor 3-12 to drive the stirring mechanism.

[0042] In the present invention, the rod body of the stirring rod 3-13 is an S-shaped rod body. The purpose of the S-shaped rod body is to stir evenly.

[0043] In addition, in the asphalt mixture storage 3 of the present invention, a coarse aggregate inlet 3-4 is provided at the top of the coarse aggregate area 3-7, and a fine aggregate inlet 3-3 is provided at the top of the fine aggregate area 3-2, so as to ensure the function of replenishing materials at any time during paving.

[0044] Meanwhile, in the asphalt mixture storage device 3 of the present invention, the coarse aggregate area 3-7 is divided into an upper part and a lower part by a mesh plate 3-6, and a stone crusher 3-5 is arranged in the upper part;

[0045] The processor controls the stone crusher 3-5 to process the coarse aggregate, and the processed coarse aggregate passes through the grid plate 3-6 and is stored in the lower part.

[0046] In the present invention, the function of the stone crusher 3-5 is to reduce the size of oversized coarse aggregate, and the function of the mesh plate 3-6 of the present invention is to filter the coarse aggregate that meets the requirements, which falls naturally by gravity. The mesh size of the mesh plate 3-6 is set according to requirements such as road surface hardness. In the asphalt paving device of the present invention, the mesh plate 3-6 is movable and replaceable.

[0047] The stone crusher 3-5 comprises a rotating shaft 3-5-2 arranged on the inner wall of the box body 1, and a plurality of stone breakers 3-5-1 are evenly arranged along the length direction of the rotating shaft 3-5-2. The purpose of the stone breakers 3-5-1 is to hit the oversized stones so that they are cracked into small-sized stones, and the rotation of the rotating shaft 3-5-2 is driven by a power source.

[0048] In addition, another inventive point of the present invention is that the road roller, compared with the traditional road roller, has less consumables, is convenient and practical, and can adjust the road rolling force according to the on-site road conditions, which is conducive to the one-time forming of the road surface.

[0049] In the present invention, the roller comprises a roller 5 , the axis of the roller 5 is provided with a roller 6 , the roller 5 rotates around the roller 6 , and the part of the roller 6 extending out of the roller 5 is connected to the frame body 1 through a connector 4 .

[0050] The drum surface of the roller 5 is used to roll the road surface. In the present invention, counterweight gravel is arranged inside the roller 5. The amount of the counterweight gravel is set according to the road surface conditions on site, and the amount of the counterweight gravel determines the strength of the road rolling.

[0051] In addition, in order to further increase the pressing effect on the road surface, a plurality of collars 11 are provided on the roller 6, each of which is connected to a telescopic propeller 12, and the telescopic end of each telescopic propeller 12 is connected to the same striking block 13, and the inner ring diameter of the collar 11 is larger than the diameter of the roller 6;

[0052] The processor controls the telescopic propeller 12 to perform rhythmic telescoping, so that the striking block 13 strikes the counterweight gravel.

[0053] The present invention strikes the counterweight gravel through the striking block 13. Due to the counterweight gravel, the striking force of the present invention enables the part of the roller 5 in contact with the road surface to be evenly stressed in real time, and the phenomenon of uneven road rolling will not occur.

[0054] In summary, the present invention provides an ultra-thin wearing layer asphalt paving device, which screens and improves asphalt raw materials through an asphalt mixture storage device to produce an asphalt mixture with a thickness of 10-15 mm for paving the surface layer of the road surface. When paving, the emulsified asphalt is first paved on the existing road surface through the emulsified asphalt storage device to play a role of adhesion, and then the asphalt mixture is laid, and finally the roller is used to complete the rolling, so as to ensure that the road surface is paved and formed in one time, and there is no need to repair or repave the original asphalt road surface, which not only saves construction time but also ensures the usability of the road; at the same time, in order to ensure the overall flatness of the road surface, a distance detector is set to detect the flatness of the road surface, and the outflow of the emulsified asphalt storage device and the asphalt mixture storage device is controlled according to the flatness of the road surface, so as to ensure the flatness of the road surface after paving; in addition, compared with traditional rollers, it has less consumables, is convenient and practical, and the strength of the road rolling can be adjusted according to the road surface conditions on site, which is conducive to the one-time forming of the road surface.

[0055] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any simple modification, change and equivalent structural change made to the above embodiment based on the technical essence of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. An ultra-thin wearing layer asphalt paving device, characterized in that: It comprises a vehicle frame body (1), on which an emulsified asphalt storage device (2) and an asphalt mixture storage device (3) are respectively arranged, and at both ends of the vehicle frame body (1) wheels (10) and a road roller are respectively arranged; The emulsified asphalt storage device (2) discharges the emulsified asphalt through an emulsified asphalt outlet pipe (8) provided at the bottom of the vehicle frame body (1), and the asphalt mixture storage device (3) discharges the mixture through a mixture outlet pipe (7) provided at the bottom of the vehicle frame body (1), the emulsified asphalt outlet pipe (8) is located in front of the mixture outlet pipe (7) in the forward direction of the asphalt paving device, and a distance detector (9) is provided in front of the emulsified asphalt outlet pipe (8); The asphalt paving device further comprises a power supply and a processor, wherein the processor is respectively connected to the distance detector (9), the emulsified asphalt storage device (2), the asphalt mixture storage device (3) and the road roller by signal, and the power supply is respectively connected to the processor, the distance detector (9), the emulsified asphalt storage device (2), the asphalt mixture storage device (3) and the road roller by electrical connection; The processor controls the outflow of the emulsified asphalt storage device (2) and the asphalt mixture storage device (3) respectively according to the distance detected by the distance detector (9).

2. The ultra-thin wearing layer asphalt paving device according to claim 1, characterized in that: The asphalt mixture storage device (3) comprises a box body (3-1) arranged on the frame body (1), the interior of the box body (3-1) is divided into an upper area and a lower area, wherein the upper area is further divided into a fine aggregate area (3-2) and a coarse aggregate area (3-7), the fine aggregate area (3-2) is used to store fine aggregate, the fine aggregate area (3-2) is separated from the lower area by a fine aggregate partition (3-10), and the fine aggregate partition (3-10) A first opening is provided on the upper part, a fine aggregate cover plate (3-11) is provided on the first opening through a first switch, the coarse aggregate area (3-7) is used to process the stored coarse aggregate into fine aggregate, the coarse aggregate area (3-7) is separated from the lower area by a coarse aggregate partition plate (3-8), a second opening is provided on the coarse aggregate partition plate (3-8), a coarse aggregate cover plate (3-9) is provided on the second opening through a second switch; a stirring mechanism is provided in the lower area; The processor controls the states of the first switch and the second switch respectively, and when the lower area has fine aggregate and processed coarse aggregate, the processor controls the stirring mechanism to operate.

3. The ultra-thin wearing layer asphalt paving device according to claim 2, characterized in that: The stirring mechanism comprises a motor (3-12) fixed on one side wall of the box body (3-1), the output shaft of the motor (3-12) is connected to one end of a stirring rod (3-13), and the other end of the stirring rod (3-13) is connected to the other side wall of the box body (3-1) through a bearing (3-14); The processor controls the motor (3-12) to drive the stirring mechanism.

4. The ultra-thin wearing layer asphalt paving device according to claim 3 is characterized in that: The rod body of the stirring rod (3-13) is an S-shaped rod body.

5. The ultra-thin wearing layer asphalt paving device according to claim 2, characterized in that: A coarse aggregate inlet (3-4) is arranged at the top of the coarse aggregate area (3-7), and a fine aggregate inlet (3-3) is arranged at the top of the fine aggregate area (3-2).

6. The ultra-thin wearing layer asphalt paving device according to claim 2, characterized in that: The coarse aggregate area (3-7) is divided into an upper part and a lower part by a mesh plate (3-6), and a stone crusher (3-5) is arranged in the upper part; The processor controls the stone crusher (3-5) to process the coarse aggregate, and the processed coarse aggregate passes through the grid plate (3-6) and is stored in the lower part.

7. The ultra-thin wearing layer asphalt paving device according to claim 6, characterized in that: The stone crusher (3-5) comprises a rotating shaft (3-5-2) arranged on the inner wall of the box body (1), and a plurality of stone breakers (3-5-1) are evenly arranged on the circumference of the rotating shaft (3-5-2) along its length direction.

8. The ultra-thin wearing layer asphalt paving device according to claim 1, characterized in that: The roller comprises a roller (5), the axis of the roller (5) is provided with a roller (6), the roller (5) rotates around the roller (6), and the part of the roller (6) extending out of the roller (5) is connected to the frame body (1) through a connecting piece (4).

9. The ultra-thin wearing layer asphalt paving device according to claim 8, characterized in that: Counterweight gravel is arranged inside the roller (5).

10. An ultra-thin wearing layer asphalt paving device according to claim 9, characterized in that: The roller (6) is provided with a plurality of collars (11), each of the collars (11) is connected to a telescopic propeller (12), the telescopic end of each telescopic propeller (12) is connected to the same striking block (13), and the inner ring diameter of the collar (11) is larger than the diameter of the roller (6); The processor controls the telescopic propeller (12) to perform rhythmic telescoping, so that the striking block (13) strikes the counterweight gravel.