Old asphalt pavement shoveling equipment

By designing old asphalt pavement shoveling equipment, using shovel blades, recycling and conveying mechanisms and matte cleaning mechanisms to efficiently peel and crush the old asphalt pavement, the problem of low recycling rate of old asphalt pavement is solved, and the recycling of resources and the improvement of construction efficiency is achieved.

CN223134935UActive Publication Date: 2025-07-22太行城乡建设集团有限公司 +1
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Patent Information

Application Number
CN202422384563.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-29
Publication Date
2025-07-22
Estimated Expiration
2034-09-29

AI Technical Summary

Technical Problem

In the prior art, the recycling rate of old asphalt pavement after crushing is low, resulting in waste of resources and environmental pollution.

Method used

A used asphalt pavement shoveling equipment is designed, equipped with a shovel blade, a recycling and conveying mechanism, a pavement burping mechanism and a cleaning mechanism, which peels and breaks the old asphalt pavement through high-frequency impact components, and uses a recycling and conveying mechanism to the crushing process, combining the burping and cleaning mechanism to reduce the subsequent workload.

Benefits of technology

The complete peeling and reuse of old asphalt pavement has been achieved, resource waste is reduced, construction efficiency is improved, subsequent workload is reduced, and direct paving is facilitated, and construction period is shortened.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223134935U_ABST
Patent Text Reader

Abstract

The utility model discloses old asphalt pavement shoveling equipment, which belongs to the technical field of pavement maintenance equipment and comprises a vehicle body and a shovel blade on the front side of the bottom of the vehicle body, a cab is arranged on the upper portion of the vehicle body, a traveling mechanism is arranged at the bottom of the vehicle body, a recovery conveying mechanism is arranged on the front side of the shovel blade, and a pavement galling mechanism and a sweeping mechanism are arranged on the rear side of the shovel blade. And the scraper knife connected with the high-frequency impact assembly performs high-frequency impact and preliminary crushing on the old asphalt pavement. The shovel blade is controlled by the console in the cab to shovel the old asphalt pavement, meanwhile, the recycling and conveying mechanism is used for collecting old asphalt pavement materials and conveying the old asphalt pavement materials to a subsequent crushing procedure to be crushed, and then the shoveled pavement is galled and concrete residues are cleaned through the pavement galling mechanism and the sweeping mechanism, so that the subsequent workload is reduced. The asphalt pavement stripping machine has the advantages of multiple purposes, high integration level and high efficiency, can strip an old asphalt pavement, meets the recycling requirement, galls and cleans the pavement, is convenient to directly pave, and can accelerate the construction progress.
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Description

Technical Field

[0001] The utility model belongs to the technical field of pavement maintenance equipment, and particularly relates to an old asphalt pavement scraping equipment. Background Art

[0002] With the continuous and rapid development of China's economy, the highway mileage is getting longer and longer, and a large number of highways enter the maintenance stage every year. At present, a milling crusher is commonly used to crush the old asphalt pavement. Although this crushing method is very efficient, the asphalt mixture obtained by this milling method is severely damaged, and the recycling rate is very low, which results in a large amount of old materials being directly discarded as solid waste. In this way, it will not only cause environmental pollution, but also cause waste of resources. Therefore, it is necessary to develop a new type of asphalt pavement cleaning equipment that can strip the old asphalt pavement as completely as possible to ensure that the recycled old asphalt mixture can meet the requirements of secondary utilization. Content of the Utility Model

[0003] In order to solve the above problems, the utility model provides an old asphalt pavement scraping equipment.

[0004] To achieve the above object, the technical solution adopted by the utility model is as follows:

[0005] An old asphalt pavement scraping equipment includes a vehicle body and a scraper blade capable of scraping the old asphalt pavement at the bottom of the vehicle body. A cab is provided at the upper part of the vehicle body, and a traveling mechanism is provided at the bottom. The scraper blade is arranged at the front of the vehicle body. A recycling and conveying mechanism for collecting and conveying the old asphalt pavement material to the crushing process is arranged at the front side of the scraper blade. A pavement roughening mechanism and a cleaning mechanism are arranged at the rear side of the scraper blade. The scraper blade is connected with a high-frequency impact component for performing high-frequency impact on the old asphalt pavement. The high-frequency impact component is controlled by a console in the cab.

[0006] Further, the recycling and conveying mechanism includes a first conveyor belt and a second conveyor belt controlled by the console. The first conveyor belt is arranged below the vehicle body and is obliquely arranged above and in front of the scraper blade. A row of material pushing claws is arranged on the surface of the first conveyor belt for pushing the scraped old asphalt pavement material onto the second conveyor belt. The second conveyor belt is obliquely arranged outside the vehicle body for conveying the old asphalt pavement material to the crushing process for crushing.

[0007] Further, the material pushing claws are connected with the first conveyor belt. The material pushing claws include a rod body and a material pushing head. The connecting end of the rod body is fixedly connected with the first conveyor belt. The other end of the rod body is provided with a wedge-shaped hole for accommodating the material pushing head. The wedge-shaped hole is large on the outside and small on the inside. The material pushing head is in a tight fit with the wedge-shaped hole. One end of the material pushing head cooperating with the wedge-shaped hole is wedge-shaped, and the other end is an arc-shaped scraper.

[0008] Further, the road surface roughening mechanism includes a motor, a driving mechanism, and a roller. The motor drives the roller to rotate through the driving mechanism. A number of rows of rolling teeth are provided on the surface of the roller, and the rolling teeth are arranged at intervals in a circular shape along the length direction of the roller. The motor is controlled by a console.

[0009] Further, the driving mechanism includes a driving wheel, a belt, a driven wheel, and a cam. The outer surfaces of both ends of the roller shaft of the roller are respectively abutted against two cams. The two cams on both sides are coaxially fixed to two driven wheels respectively. One driven wheel is connected to the driving wheel through a belt, and the other driven wheel is connected to the driven wheel through a belt. The driving wheel is driven by the motor, and the driving wheel and the driven wheel are connected through a driving shaft. The driving shaft and the driven wheels are both connected to the vehicle body through support rods, and the roller shaft is connected to the support rod through a buffer structure.

[0010] Further, the inner sides of the rotating shafts of the two cams are connected to a gantry. The driven wheels are arranged on the outer sides of the cams. A row of cleaning brushes is provided at the bottom of the cross beam of the gantry. The cleaning brushes face downwards and are used to clean the rolling teeth on the surface of the roller.

[0011] Further, the buffer structure includes a second spring and a connecting seat. The lower end of the connecting seat is rotationally matched with the roller shaft. A blind hole for slidingly matching with the lower end of the support rod is provided at the top of the connecting seat. The second spring is arranged in the blind hole, and the upper and lower ends of the second spring are respectively connected to the support rod and the bottom of the blind hole.

[0012] Further, the cleaning mechanism is a rotary brush controlled by a console and is used to clean the concrete slag on the road surface after roughening.

[0013] Further, the high-frequency impact component is a hydraulic impactor or a pneumatic impactor.

[0014] Compared with the prior art, the technical progress achieved by the present utility model is as follows:

[0015] By installing a shovel at the bottom of the vehicle body, controlling the high-frequency impact component to perform high-frequency impact on the old asphalt road surface through the console in the cab, and slowly driving through the traveling mechanism, the purpose of shoveling the old asphalt road surface is realized. At the same time, the recycling and conveying mechanism in front of the shovel is used to collect the old asphalt road surface materials and convey them to the subsequent crushing process for crushing. Subsequently, the road surface roughening mechanism and the cleaning mechanism at the rear are used to roughen the shoveled road surface and clean the concrete slag. The present utility model has the advantages of multi-purpose, high integration, and high efficiency. It can strip the old asphalt road surface as completely as possible, and then preliminarily crush the old asphalt road surface by high-frequency vibration, which can meet the requirements of recycling and reduce resource waste. At the same time, it can also roughen and clean the road surface, reduce the subsequent workload, facilitate direct paving, speed up the construction progress, and shorten the construction period. Description of the Drawings

[0016] The accompanying drawings are used to provide a further understanding of the present utility model and constitute a part of the description. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model.

[0017] In the accompanying drawings:

[0018] Figure 1 is a schematic structural diagram of an old asphalt pavement scraping device provided by an embodiment of the present utility model;

[0019] Figure 2 is a schematic structural diagram of the material pushing claw in an embodiment of the present utility model;

[0020] Figure 3 is a schematic structural diagram of a road surface roughening mechanism in an embodiment of the present utility model;

[0021] Figure 4 is a schematic diagram of the cooperation between the support rod and the connecting seat in an embodiment of the present utility model;

[0022] In the figure:

[0023] 1 - vehicle body, 101 - first traveling wheel, 102 - second traveling wheel; 2 - scraper; 3 - cab; 4 - first conveyor belt; 5 - second conveyor belt; 6 - material pushing claw, 61 - rod body, 62 - material pushing head; 7 - lifting leg; 8 - roller; 9 - hob; 10 - driving wheel; 11 - belt; 12 - driven wheel; 13 - cam driving wheel; 14 - driven wheel; 15 - driving shaft; 16 - support rod; 17 - gantry; 18 - cleaning brush; 19 - second spring; 20 - connecting seat; 21 - rotary brush; 22 - spray head. Detailed implementation manners

[0024] The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present utility model will be described below with reference to the accompanying drawings.

[0025] Such as Figure 1As shown in the figure, an old asphalt pavement scraping device includes a vehicle body 1 and a scraper 2 at the bottom capable of scraping the old asphalt pavement. The upper part of the vehicle body 1 is provided with a cab 3, and the bottom is provided with a traveling mechanism. The scraper 2 is arranged at the front of the vehicle body 1. A recycling and conveying mechanism for collecting and conveying the old asphalt pavement materials to the crushing process is arranged on the front side of the scraper 2. A road surface roughening mechanism and a cleaning mechanism are arranged on the rear side of the scraper 2. The scraper 2 is connected to a high-frequency impact component for performing high-frequency impact on the old asphalt pavement. The high-frequency impact component is controlled by a console in the cab 3. Among them, the high-frequency impact component is a hydraulic impactor or a pneumatic impactor. The old asphalt pavement is peeled and preliminarily crushed by the scraper with high-frequency vibration, which can meet the requirements of recycling and reduce resource waste. At the same time, the road surface roughening mechanism and the cleaning mechanism are used to roughen and clean the road surface, reducing the subsequent workload and improving the construction efficiency.

[0026] Among them, the traveling mechanism includes a first traveling wheel 101 at the rear and a second traveling wheel 102 at the front. The outer diameter of the first traveling wheel 101 is larger than that of the second traveling wheel 102. The second traveling wheel 102 is connected to the vehicle body 1 through a hydraulic rod. When driving on a normal road surface, the second traveling wheel 102 is lowered to the same plane as the first traveling wheel 101 through the hydraulic rod. During operation, the height of the second traveling wheel 102 is adjusted through the hydraulic rod so that it is on the un-scraped road surface, and the first traveling wheel 101 is on the scraped road surface to ensure the vehicle body remains in a balanced state. At the same time, lifting legs 7 are arranged on both sides of the vehicle body 1 to facilitate the support of the vehicle body 1 during maintenance.

[0027] In a specific embodiment of the present invention, as Figure 1 shown, the recycling and conveying mechanism includes a first conveyor belt 4 and a second conveyor belt 5 controlled by the console. The first conveyor belt 4 is arranged below the vehicle body 1 and is inclined and arranged above the front side of the scraper 2. Rows of material-pushing claws 6 are arranged on the surface of the first conveyor belt 4 for pushing the scraped old asphalt pavement materials onto the second conveyor belt 5. The second conveyor belt 5 is inclined and arranged outside the vehicle body 1 for conveying the old asphalt pavement materials to the crushing process for crushing. The material-pushing claws on the first conveyor belt 4 can sequentially push the shattered old asphalt pavement materials onto the second conveyor belt 5, and the old asphalt pavement materials are conveyed into the crushing equipment of the crushing process through the inclined second conveyor belt 5, realizing the continuous treatment of the old asphalt pavement materials. In addition, protective covers are arranged around the vehicle body to wrap the scraper, the first conveyor belt, the road surface roughening mechanism and the cleaning mechanism inside. At the same time, a spray head 22 is installed at the discharge port of the first conveyor belt 4 for spray dust reduction. The spray head is connected to a water tank on the vehicle body through a spray pipe with a water pump, and the start and stop of the water pump are controlled by the console.

[0028] During specific design, as Figure 2As shown, the material pusher claw 6 is connected to the first conveyor belt 4. The material pusher claw 6 includes a rod body 61 and a material pusher head 62. The connecting end of the rod body 61 is fixedly connected to the first conveyor belt 4. The other end of the rod body 61 is provided with a wedge-shaped hole for accommodating the material pusher head 62. The wedge-shaped hole is large on the outside and small on the inside. The material pusher head is in a tight fit with the wedge-shaped hole. One end of the material pusher head that fits with the wedge-shaped hole is wedge-shaped, and the other end is an arc-shaped shovel. The material pusher claw with this structure can shovel the old asphalt pavement materials that are chiseled and shattered one by one onto the second conveyor belt 5 outside the machine body.

[0029] In a specific embodiment of the present invention, as Figure 3 shown, the road surface roughening mechanism includes a motor (not shown in the figure), a driving mechanism, and a roller 8. The motor drives the roller 8 to rotate through the driving mechanism. A number of rows of rolling teeth 9 are provided on the surface of the roller 8. The rolling teeth 9 are arranged at intervals along the length direction of the roller 8 in a circular shape. The motor is controlled by a console. Among them, the driving mechanism includes a driving wheel 10, a belt 11, a driven wheel 12, and a cam 13. The outer surfaces of both ends of the roller shaft of the roller 8 are respectively abutted against two cams 13. The two cams 13 on both sides are respectively fixedly connected to the two driven wheels 12 coaxially. One driven wheel 12 is connected to the driving wheel 10 through a belt 11, and the other driven wheel 12 is connected to a driven wheel 14 through a belt 11. The driving wheel 10 is driven by the motor. The driving wheel 10 and the driven wheel 14 are connected through a driving shaft 15. The driving shaft 15 and the driven wheel 12 are both connected to the vehicle body 1 through a support rod 16. The roller shaft is connected to the support rod 16 through a buffer structure. By driving the cam to rotate through belt transmission, and then driving the roller to lift and lower, the rotating rolling teeth continuously mill the road surface, thereby realizing the roughening treatment of the road surface.

[0030] Further optimizing the above solution, as Figure 3 shown, the inner sides of the rotating shafts of the two cams 13 are connected to a gantry frame 17. The driven wheels 12 are arranged outside the cams 13. A row of cleaning brushes 18 is provided at the bottom of the cross beam of the gantry frame 17. The cleaning brushes 18 are arranged downward for cleaning the rolling teeth 9 on the surface of the roller 8. During construction, spray heads are installed at the bottom and side discharge ports of the roller to achieve dust reduction treatment. At the same time, the rolling teeth are intermittently cleaned by the cleaning brushes at the top to avoid an increase in resistance caused by too much carried material slag.

[0031] During specific production, as Figure 4 shown, the buffer structure includes a second spring 19 and a connecting seat 20. The lower end of the connecting seat 20 is rotationally matched with the roller shaft. The top of the connecting seat 20 is provided with a blind hole for slidingly matching with the lower end of the support rod 16. The second spring 19 is arranged in the blind hole. The upper and lower ends of the second spring 19 are respectively connected to the support rod 16 and the bottom of the blind hole. With the help of this buffer structure, the roller can generate a buffer when contacting the road surface during rotation, avoiding direct rigid contact with the road surface and damaging the bearings at both ends.

[0032] In a specific embodiment of the present utility model, as Figure 1 shown, the cleaning mechanism is a rotary brush 21 controlled by a console, which is used to clean the concrete slag on the road surface after surface roughening. The rotary brush can be inclined to sweep the concrete slag during the surface roughening process to the outlet on one side of the vehicle body. At the same time, a spray head 22 is installed above the outlet to avoid serious dust pollution to the surrounding environment.

[0033] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the scope of protection of the claims of the present utility model.

Claims

1. An old asphalt pavement scraping device, characterized in that: It includes a vehicle body and a scraper blade capable of scraping the old asphalt pavement at its bottom. A cab is provided at the upper part of the vehicle body, and a traveling mechanism is provided at the bottom. The scraper blade is arranged at the front of the vehicle body. A recycling and conveying mechanism for collecting and conveying the old asphalt pavement materials to the crushing process is provided on the front side of the scraper blade. A road surface roughening mechanism and a cleaning mechanism are provided on the rear side of the scraper blade. The scraper blade is connected to a high-frequency impact component for performing high-frequency impact on the old asphalt pavement. The high-frequency impact component is controlled by a console in the cab.

2. The scraping equipment for old asphalt pavement according to claim 1, characterized in that: The recycling and conveying mechanism includes a first conveyor belt and a second conveyor belt controlled by the console. The first conveyor belt is arranged below the vehicle body and is inclined and arranged above the front side of the scraper blade. A row of material pushing claws is provided on the surface of the first conveyor belt for pushing the scraped old asphalt pavement materials onto the second conveyor belt. The second conveyor belt is inclined and arranged outside the vehicle body for conveying the old asphalt pavement materials to the crushing process for crushing.

3. The old asphalt pavement planing equipment according to claim 2, characterized in that: The material pushing claws are connected to the first conveyor belt. The material pushing claws include a rod body and a material pushing head. The connecting end of the rod body is fixedly connected to the first conveyor belt. The other end of the rod body is provided with a wedge-shaped hole for accommodating the material pushing head. The wedge-shaped hole is large on the outside and small on the inside. The material pushing head is in a tight fit with the wedge-shaped hole. One end of the material pushing head that cooperates with the wedge-shaped hole is wedge-shaped, and the other end is an arc-shaped shovel.

4. An old asphalt pavement scraping device according to claim 1, characterized in that: The road surface roughening mechanism includes a motor, a driving mechanism, and a drum. The motor drives the drum to rotate through the driving mechanism. A number of rows of rolling teeth are provided on the surface of the drum. The rolling teeth are arranged at intervals in a circular shape along the length direction of the drum. The motor is controlled by the console.

5. An old asphalt pavement scraping device according to claim 4, characterized in that: The driving mechanism includes a driving wheel, a belt, a driven wheel, and a cam. The outer surfaces of both ends of the roller shaft of the drum are respectively abutted against two cams. The two cams on both sides are respectively coaxially fixed to the two driven wheels. One driven wheel is connected to the driving wheel through a belt, and the other driven wheel is connected to the driven wheel through a belt. The driving wheel is driven by the motor. The driving wheel and the driven wheel are connected through a driving shaft. The driving shaft and the driven wheels are both connected to the vehicle body through support rods. The roller shaft is connected to the support rod through a buffer structure.

6. The old asphalt pavement planing equipment according to claim 5, characterized in that: The inner sides of the rotating shafts of the two cams are connected to a gantry frame. The driven wheels are arranged outside the cams. A row of cleaning brushes is provided at the bottom of the cross beam of the gantry frame. The cleaning brushes are arranged downward for cleaning the rolling teeth on the surface of the drum.

7. An old asphalt pavement scraping device according to claim 5, characterized in that: The buffer structure includes a second spring and a connecting seat. The lower end of the connecting seat is rotatably matched with the roller shaft. The top of the connecting seat is provided with a blind hole for slidingly matching with the lower end of the support rod. The second spring is arranged in the blind hole. The upper and lower ends of the second spring are respectively connected to the support rod and the bottom of the blind hole.

8. An old asphalt pavement planing device according to claim 1, characterized in that: The cleaning mechanism is a rotary brush controlled by the console for cleaning the concrete slag on the road surface after roughening.

9. An old asphalt pavement planing device according to any one of claims 1-8, characterized in that: The high-frequency impact component is a hydraulic impactor or a pneumatic impactor.