Asphalt road cold recycling equipment

Abstract

The application relates to a bituminous road cold regeneration device and belongs to the field of road construction technology, which comprises a traveling vehicle body, a milling mechanism, a cleaning mechanism and a conveying mechanism. The milling mechanism is arranged on the traveling vehicle body and is used for milling and crushing old bituminous pavement. The cleaning mechanism is arranged on the traveling vehicle body and comprises a lifting seat, a shovel and a lifting assembly. The lifting seat is vertically slidably arranged on the traveling vehicle body. The shovel is obliquely arranged on the lifting seat. The lifting assembly is arranged on the traveling vehicle body and is used for driving the lifting seat to slide. The conveying mechanism is arranged on the traveling vehicle body and is used for outputting the old material milled and crushed in the shovel. The application can effectively reduce the workload of cleaning the bituminous pavement milled and crushed, improve the problem that a large amount of manpower and material resources are still consumed for cleaning after the bituminous pavement is milled and crushed during bituminous road cold regeneration, improve the construction efficiency of bituminous pavement reconstruction and reduce the construction cost.

Description

Technical Field

[0001] This application relates to the field of road construction technology, and in particular to a cold recycling device for asphalt roads. Background Technology

[0002] With the continuous increase in highway traffic volume, the problem of asphalt road damage has become increasingly prominent. The renovation and reconstruction of old asphalt roads generates a large amount of waste material, which still has high utilization value as road materials. Therefore, the recycling of asphalt pavements is becoming increasingly important. Cold recycling of asphalt roads refers to milling and breaking down the old pavement structure layers, including the surface layer and part of the base layer, at room temperature, adding recycled materials, mixing, and repaving them onto the road surface.

[0003] Currently, in-situ cold recycling of asphalt roads requires the use of specialized machinery such as milling machines, crushers, and mixers to complete milling, crushing, and mixing, respectively, in conjunction with asphalt tank trucks, graders, and road rollers for auxiliary construction. Among these, after the milling machine breaks up the old asphalt pavement, a large amount of crushed asphalt material remains on the road surface, requiring significant manpower and resources for cleanup. This increases the workload of asphalt pavement reconstruction, affects construction efficiency, and increases construction costs. Summary of the Invention

[0004] To address the issue that a significant amount of manpower and resources are still required for cleaning up asphalt pavement after milling and crushing during cold recycling of asphalt roads, this application provides a cold recycling device for asphalt roads.

[0005] The asphalt road cold recycling equipment provided in this application adopts the following technical solution: A cold recycling device for asphalt roads includes a traveling vehicle body, a milling mechanism, a cleaning mechanism, and a conveying mechanism. The milling mechanism is mounted on the traveling vehicle body and is used to mill and crush the old asphalt pavement. The cleaning mechanism is mounted on the traveling vehicle body and is used to collect the milled and crushed old material to the conveying mechanism. The cleaning mechanism includes a lifting seat, a bucket, and a lifting assembly. The lifting seat is vertically slidably mounted on the traveling vehicle body, the bucket is inclinedly mounted on the lifting seat, and the lifting assembly is mounted on the traveling vehicle body and is used to drive the lifting seat to slide. The conveying mechanism is mounted on the traveling vehicle body and is used to output the milled and crushed old material from the bucket.

[0006] By adopting the above technical solution, the vehicle travels to the old asphalt pavement to be renovated. The milling mechanism mills and breaks up the old asphalt pavement as the vehicle travels along it. At the same time, the lifting component drives the lifting seat to move down, so that the bucket comes into contact with the milled and broken asphalt pavement. As the vehicle travels, the bucket can scoop up the milled and broken old material. The scooped-up milled and broken old material is output by the conveying mechanism, realizing the milling and breaking up of the old asphalt pavement and the cleaning of the milled and broken old material. This effectively reduces the workload of cleaning the milled and broken asphalt pavement, improves the problem of still needing a lot of manpower and resources to clean up the asphalt pavement after milling and breaking it up during cold recycling of asphalt roads, improves the construction efficiency of asphalt pavement renovation and reconstruction and reduces construction costs.

[0007] Optionally, the lifting assembly includes a lifting hydraulic cylinder, a level, and a controller. One lifting hydraulic cylinder is respectively installed on each side of the traveling vehicle body on the lifting seat. The piston rod of the lifting hydraulic cylinder is hinged to the lifting seat. The level is installed on the lifting seat and is used to detect the levelness of the lifting seat. The controller is installed on the traveling vehicle body and is electrically connected to both the lifting hydraulic cylinder and the level.

[0008] By adopting the above technical solution, the piston rod of the lifting hydraulic cylinder can extend and retract to drive the lifting seat to rise and fall. The level instrument can detect the levelness of the lifting seat. Then, the controller controls the piston rod of the lifting hydraulic cylinder on one side to extend and retract, adjusts the levelness of the lifting seat, and thus adjusts the bucket to a level state, ensuring the smoothness of the road surface after the bucket removes the milled and crushed old material.

[0009] Optionally, the milling mechanism includes a rotor shaft, a cutter head, a hydraulic motor, and a transmission assembly. The rotor shaft is rotatably mounted on a lifting seat, the cutter head is mounted on the rotor shaft, the hydraulic motor is mounted on the traveling vehicle body, and the transmission assembly is mounted on the traveling vehicle body and is used to drive the rotor shaft to rotate when the hydraulic motor is started.

[0010] By adopting the above technical solution, the lifting seat drives the rotor shaft to move horizontally downward to the height required for milling and breaking the old asphalt pavement. The hydraulic motor starts, and the hydraulic motor drives the rotor shaft to rotate through the transmission component. The rotor shaft drives the cutter head to rotate, and the cutter head can then mill and break the asphalt pavement.

[0011] Optionally, the transmission assembly includes a transmission sleeve, a transmission rod, and a bevel gear set. The transmission sleeve is coaxially mounted on the output shaft of the hydraulic motor. The transmission rod is slidably inserted into the transmission sleeve. The cross-sectional shape of the openings of the transmission rod and the transmission sleeve is polygonal. The bevel gear set is mounted on the transmission rod and is used to drive the rotor shaft to rotate.

[0012] By adopting the above technical solution, the hydraulic motor drives the transmission sleeve to rotate, the transmission sleeve drives the transmission rod to rotate, and the transmission rod drives the rotor shaft to rotate through the bevel gear set. By sliding the transmission rod on the transmission sleeve, the transmission rod can slide inside the transmission sleeve when the lifting seat moves up and down. However, the polygonal cross-sectional shape of the transmission rod and the opening of the transmission sleeve ensure that the transmission sleeve can always drive the transmission rod to rotate, thus ensuring the driving stability after the rotor shaft is raised and lowered.

[0013] Optionally, the bucket includes a bottom plate, side plates, and an adjusting member. The bottom plate is inclinedly mounted on the lifting seat. One side plate is slidably mounted on each side of the bottom plate. The side plates gradually tilt upward from the edge of the bottom plate toward the center of the bottom plate. The adjusting member is mounted on the bottom plate and is used to drive the two side plates closer to or further apart from each other.

[0014] By adopting the above technical solution, the width of the space formed by the two side plates and the bottom plate for moving the milled old material can be adjusted by driving the two side plates closer to each other or further apart. This makes the furthest distance between the two side plates the same as the width of the milled old road surface. Combined with the inclined bottom plate and side plates, the old material after milling can be cleaned up better.

[0015] Optionally, multiple cutter heads are detachably provided on the rotor shaft along the length of the rotor shaft. The base plate includes a plate body, adjusting blocks, and positioning components. The plate body is provided on the lifting seat, and the side plate is provided on the plate body. Multiple adjusting blocks are slidably inserted at the end of the plate body away from the lifting seat. The positioning components are provided on the plate body and are used to position the adjusting blocks.

[0016] By adopting the above technical solution, the cutter heads are disassembled and assembled on the rotor shaft according to the width of the old asphalt pavement to be renovated, so that the width of multiple cutter heads on the rotor shaft is consistent with the width of the old asphalt pavement to be renovated. This drives the adjusting blocks to rise and fall on the plate, and the adjusted adjusting blocks are positioned by positioning components, so that the width of multiple adjusting blocks extending out of the plate is consistent with the width of the old asphalt pavement to be renovated. This allows for accurate milling and crushing of the old asphalt pavement and removal of old materials according to the width of the old asphalt pavement to be renovated. During the process, the adjusting blocks extending to the width of the old asphalt pavement to be renovated contact the unmilled pavement, supporting the lifting seat and improving the stability of the old asphalt pavement during milling and crushing.

[0017] Optionally, the lifting seat is provided with a material collection mechanism for collecting crushed old material into the bucket. The material collection mechanism includes a telescopic shaft, a scraper, a brush, and a drive assembly. The telescopic shaft is rotatably mounted on the lifting seat and its length is extendable. The scraper is mounted on the telescopic shaft, and the brush is mounted on the telescopic shaft. The scraper and the brush are distributed circumferentially along the telescopic shaft. The drive assembly is mounted on the telescopic shaft and is used to drive the telescopic shaft to rotate when the transmission rod rotates.

[0018] By adopting the above technical solution, the length of the telescopic rod is adjusted to match the width of the old asphalt pavement to be renovated. When the transmission rod rotates to mill and break the asphalt pavement, the drive component drives the telescopic shaft to rotate, and the telescopic shaft drives the scraper and brush to rotate. The scraper scrapes the old material after milling and breaking onto the plate, and the brush sweeps the asphalt pavement after milling and breaking, effectively improving the cleaning effect of the asphalt pavement after milling and breaking.

[0019] Optionally, the telescopic shaft includes a support shaft, an extension shaft, a insert plate, and a locking element. The support shaft is rotatably mounted on the lifting seat. The extension shaft is slidably sleeved at both ends of the support shaft. The insert plate is mounted on the support shaft. The scraper is mounted on the extension shaft. The insert plate is mounted on the support shaft and slidably inserted onto the scraper. The locking element is mounted on the extension shaft and is used to lock the extension shaft on the support shaft.

[0020] By adopting the above technical solution, the extension shafts at both ends of the support shaft are driven to slide on the support shaft. The extension shafts are positioned on the support shaft by the locking components, so that the length of the telescopic shaft can be adjusted. During the adjustment process, the insert plate slides on the scraper. After the adjustment is completed, the scraper supports the insert plate to ensure the stability of the axial transmission between the support shaft and the extension shaft.

[0021] Optionally, the conveying mechanism includes a first conveyor belt, a second conveyor belt, and an adjusting component. The first conveyor belt is mounted on the traveling vehicle body and communicates with the bucket. The second conveyor belt is horizontally rotatably mounted on the traveling vehicle body and communicates with the first conveyor belt. The adjusting component is mounted on the traveling vehicle body and is used to drive the second conveyor belt to rotate.

[0022] By adopting the above technical solution, as the vehicle body moves forward, the milled and crushed old material is moved from the bucket to the first conveyor belt under the pressure of the extrusion device, and then from the first conveyor belt to the second conveyor belt. By adjusting the drive to rotate the second conveyor belt, the second conveyor belt is aligned with the transport vehicle, and the second conveyor belt can transport the milled and crushed old material to the transport vehicle for output.

[0023] Optionally, the adjustment assembly includes a horizontal adjustment seat, a rotary cylinder, and an adjustment hydraulic cylinder. The horizontal adjustment seat is horizontally rotatably mounted on the traveling vehicle body. The rotary cylinder is mounted on the traveling vehicle body and is used to drive the horizontal adjustment seat to rotate. The second conveyor belt is vertically hinged to the horizontal adjustment seat. The adjustment hydraulic cylinder is hinged to the traveling vehicle body and hinged to the second conveyor belt.

[0024] By adopting the above technical solution, the rotary cylinder drives the horizontal adjustment seat to rotate, the horizontal adjustment seat drives the second conveyor belt to rotate, the horizontal direction of the second conveyor belt is adjusted, the piston rod of the hydraulic cylinder is extended and retracted, driving the second conveyor belt to rotate vertically, and the height of the second conveyor belt is adjusted, so that the second conveyor belt is suitable for the output requirements of different heights and horizontal directions of the milled and crushed old materials.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. Effectively reduces the workload of cleaning up milled and crushed asphalt pavement, improves the problem that a lot of manpower and resources are still needed to clean up the milled and crushed asphalt pavement during cold recycling of asphalt roads, improves the construction efficiency of asphalt pavement renovation and reconstruction and reduces construction costs. 2. Drive the adjusting blocks to rise and fall on the plate, and position the adjusted adjusting blocks through the positioning parts so that the width of multiple adjusting blocks extending out of the plate is consistent with the width of the old asphalt pavement to be renovated. This allows for accurate milling and crushing of the old asphalt pavement and cleaning of old materials according to the width of the old asphalt pavement to be renovated. During the process, the adjusting blocks that extend to the width of the old asphalt pavement to be renovated abut against the unmilled pavement, supporting the lifting seat and improving the stability during the milling and crushing of the old asphalt pavement. 3. The scraper scrapes the milled old material onto the plate, and the brush sweeps the milled asphalt pavement, effectively improving the cleaning effect of the milled asphalt pavement. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the asphalt road cold recycling equipment according to an embodiment of this application.

[0027] Figure 2 This is a schematic diagram of the structure of the milling mechanism, cleaning mechanism, conveying mechanism and material collection mechanism in the embodiments of this application.

[0028] Figure 3 This is a schematic diagram of the milling mechanism according to an embodiment of this application.

[0029] Figure 4 This is a schematic diagram of the cleaning mechanism according to an embodiment of this application.

[0030] Figure 5This is a schematic diagram of the material collection mechanism according to an embodiment of this application.

[0031] Figure 6 This is a schematic diagram of the conveying mechanism according to an embodiment of this application.

[0032] Reference numerals: 1. Traveling vehicle body; 2. Milling mechanism; 21. Rotor shaft; 22. Cutting head; 23. Hydraulic motor; 24. Transmission assembly; 241. Transmission sleeve; 242. Transmission rod; 243. Bevel gear set; 3. Cleaning mechanism; 31. Lifting seat; 32. Bucket; 321. Base plate; 3211. Plate body; 3212. Adjusting block; 3213. Positioning component; 322. Side plate; 323. Adjusting component; 33. Lifting assembly Components; 331, Lifting hydraulic cylinder; 332, Level; 4, Conveying mechanism; 41, First conveyor belt; 42, Second conveyor belt; 43, Adjusting assembly; 431, Leveling adjustment seat; 432, Rotary cylinder; 433, Adjusting hydraulic cylinder; 5, Material collection mechanism; 51, Telescopic shaft; 511, Support shaft; 512, Extension shaft; 513, Insert plate; 514, Locking component; 52, Scraper; 53, Brush; 54, Drive assembly. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0034] This application discloses a cold recycling device for asphalt roads.

[0035] Reference Figure 1 The asphalt road cold recycling equipment includes a traveling vehicle body 1, a milling mechanism 2, a cleaning mechanism 3, a conveying mechanism 4, and a collection mechanism 5. The milling mechanism 2 is installed on the traveling vehicle body 1 and is used to mill and crush the old asphalt pavement. The cleaning mechanism 3 is installed on the traveling vehicle body 1 and is used to collect the milled and crushed old material to the conveying mechanism 4. The conveying mechanism 4 is installed on the traveling vehicle body 1 and is used to output the milled and crushed old material. The collection mechanism 5 is installed on the lifting seat 31 and is used to collect the crushed old material into the bucket 32.

[0036] Reference Figure 2 , Figure 3The cleaning mechanism 3 includes a lifting seat 31, a bucket 32, and a lifting assembly 33. The lifting seat 31 is vertically slidably mounted on the traveling vehicle body 1. The lifting assembly 33 is mounted on the traveling vehicle body 1 and is used to drive the lifting seat 31 to slide. The lifting assembly 33 includes a lifting hydraulic cylinder 331, a level 332, and a controller. Two lifting hydraulic cylinders 331 are vertically mounted on the traveling vehicle body 1. The two lifting hydraulic cylinders 331 are located on both sides of the lifting seat 31, and the piston rods of the two lifting hydraulic cylinders 331 are respectively hinged to the two ends of the lifting seat 31. The level 332 is mounted on the lifting seat 31 and is used to detect the levelness of the lifting seat 31. The controller is mounted on the traveling vehicle body 1 and is electrically connected to both the level 332 and the lifting hydraulic cylinder 331.

[0037] By controlling the extension or retraction of the piston rod of the lifting hydraulic cylinder 331, the lifting seat 31 can be driven to rise and fall, and the height of the lifting seat 31 can be adjusted. The level instrument 332 can also continuously detect the levelness of the lifting seat 31. If the levelness of the lifting seat 31 deviates beyond the set range, the controller controls the piston rod of the lifting hydraulic cylinder 331 on the deviated side to extend and retract, so as to adjust the lifting seat 31 to be level.

[0038] Reference Figure 2 , Figure 3 The milling mechanism 2 includes a rotor shaft 21, cutter heads 22, a hydraulic motor 23, and a transmission assembly 24. The rotor shaft 21 is rotatably mounted on the lifting seat 31. Multiple cutter heads 22 are detachably mounted on the rotor shaft 21 along its length. In this embodiment, multiple slots are spaced apart on the rotor shaft 21 along its length, and one cutter head 22 is embedded in each slot by a clamp, thereby achieving a stable and detachable mounting of the cutter head 22 on the rotor shaft 21. The hydraulic motor 23 is mounted on the traveling vehicle body 1, and the transmission assembly 24 is mounted on the traveling vehicle body 1. The transmission assembly 24 is used to drive the rotor shaft 21 to rotate when the hydraulic motor 23 is started. The transmission assembly 24 includes a transmission sleeve 241, a transmission rod 242, and a bevel gear set 243. 41 is coaxially mounted on the output shaft of the hydraulic motor 23. The transmission rod 242 is vertically slidably inserted into the end of the transmission sleeve 241 away from the hydraulic motor 23. The cross-sectional shape of the openings of the transmission rod 242 and the transmission sleeve 241 are both polygonal. In this embodiment, the cross-sectional shape of the openings of the transmission rod 242 and the transmission sleeve 241 are both rectangular. The bevel gear set 243 is mounted on the transmission rod 242. The bevel gear set 243 is used to drive the rotor shaft 21 to rotate. In this embodiment, the bevel gear set 243 includes a driving bevel gear and a driven bevel gear. The driving bevel gear is rotatably mounted on the lifting seat 31 and coaxially connected to the transmission rod 242. The driven bevel gear is coaxially mounted on the rotor shaft 21 and meshes with the driving bevel gear, so that the rotor shaft 21 is driven to rotate when the transmission rod 242 rotates.

[0039] The vehicle body 1 travels to the old asphalt pavement to be renovated. Based on the required width and height of the old asphalt pavement, an appropriate number of cutter heads 22 are installed on the rotor shaft 21, ensuring that the number of cutter heads 22 on the rotor shaft 21 matches the width of the old asphalt pavement. The height of the lifting seat 31 is adjusted so that the cutter heads 22 are lowered to the required height for milling and breaking the old asphalt pavement. During adjustment, the lifting seat 31 drives the transmission rod 242 to move, causing the transmission rod 242 to slide on the transmission sleeve 241. However, the polygonal cross-sectional shape of the transmission rod 242 and the opening of the transmission sleeve 241 ensure that the transmission sleeve 241 can always drive the transmission rod 242 to rotate, guaranteeing the bevel gear... The constant engagement of group 243 ensures the stability of driving rotor shaft 21 after it is raised and lowered. Then, the vehicle body 1 travels along the old asphalt road surface and starts hydraulic motor 23. Hydraulic motor 23 drives transmission sleeve 241 to rotate, transmission sleeve 241 drives transmission rod 242 to rotate, transmission rod 242 drives rotor shaft 21 to rotate through bevel gear group 243, rotor shaft 21 drives multiple cutter heads 22 to rotate, and cutter heads 22 can mill and break the old asphalt road surface, meeting the applicability of milling requirements for different widths and depths of old asphalt road surface. In addition, the level of lifting seat 31 is adjusted in real time during the milling process to ensure the flatness of the milled and broken old asphalt road surface.

[0040] Reference Figure 2 , Figure 4The bucket 32 ​​is inclinedly mounted on the lifting seat 31. The bucket 32 ​​includes a bottom plate 321, a side plate 322, and an adjusting member 323. The bottom plate 321 is mounted on the lifting seat 31 and includes a plate body 3211, adjusting blocks 3212, and positioning members 3213. The plate body 3211 is inclinedly mounted on the lifting seat 31. Multiple adjusting blocks 3212 are slidably inserted along the width direction of the plate body 3211 at the end of the plate body 3211 away from the lifting seat 31. The positioning member 3213 is mounted on the plate body 3211 and is used to position the adjusting blocks 3212 on the plate body 3211. In this embodiment, the positioning member 3213 includes a pin. Multiple through holes are opened on the adjusting blocks 3212 along the sliding direction of the adjusting blocks 3212, and the pin is slidably inserted into the plate body 3211. 11 passes through one of the holes in the adjusting block 3212, thereby locking the adjusting block 3212 on the plate 3211; one side plate 322 is slidably installed on each side of the base plate 321 along the width direction of the base plate 321, and the side plate 322 gradually tilts upward from the edge of the base plate 321 towards the middle of the base plate 321; the adjusting member 323 is installed on the base plate 321, and the adjusting member 323 is used to drive the two side plates 322 to move closer or further away from each other. In this embodiment, the adjusting member 323 is two adjusting cylinders, and the two adjusting cylinders are respectively installed on both sides of the plate 3211. The piston rods of the two adjusting cylinders are respectively connected to the two side plates 322. By controlling the extension and retraction of the piston rods of the two adjusting cylinders, the two side plates 322 can be driven to move closer or further away from each other.

[0041] Based on the required width and height of the old asphalt pavement to be renovated, construction workers manipulate multiple adjusting blocks 3212 to rise and fall on the plate 3211, so that the corresponding number of adjusting blocks 3212 protrude from the width of the plate 3211, consistent with the width of the asphalt pavement to be renovated. The length of the adjusting blocks 3212 protruding from the plate 3211 is adjusted to match the depth of the asphalt pavement to be renovated. Then, the adjusting blocks 3212 are positioned using positioning components 3213, allowing them to be inserted into the broken asphalt pavement. Next, the two side plates 322 are moved closer or further apart using adjusting components 323, adjusting the width of the space formed by the two side plates 322 and the base plate 321 for moving the milled old material, ensuring the maximum distance between the two side plates 322 is within acceptable limits. The distance between the buckets is the same as the width of the milled and crushed old road surface. With the inclined bottom plate 321 and side plate 322, the bucket 32 ​​can scoop up the milled and crushed old material as the vehicle body 1 moves, realizing the milling and crushing of the old asphalt road surface and the cleaning of the milled and crushed old material. By adjusting the protrusion of an appropriate number of adjusting blocks 3212, it can adapt to different widths and depths of the asphalt road surface to be renovated, and better clean the milled and crushed old material. In addition, during the cleaning process, the adjusting blocks 3212, which extend along the width direction to the width of the old asphalt road surface to be renovated, can also abut against the unmilled road surface and support the lifting seat 31. With the horizontal adjustment of the lifting seat 31, the plate 3211 is level, improving the stability of the road surface flatness during the milling and crushing of the old asphalt road surface.

[0042] Reference Figure 2 , Figure 5The material collection mechanism 5 includes a telescopic shaft 51, scrapers 52, brushes 53, and a drive assembly 54. The telescopic shaft 51 is rotatably mounted on the lifting base 31 and is located between the rotor shaft 21 and the bucket 32. The length of the telescopic shaft 51 is extendable. The telescopic shaft 51 includes a support shaft 511, an extension shaft 512, and a locking element 514. The support shaft 511 is rotatably mounted on the lifting base 31. An extension shaft 512 is slidably sleeved at each end of the support shaft 511. Multiple scrapers 52 are installed at intervals along the circumference of the extension shaft 512. Multiple bristles 513 are spaced apart on the support shaft 511 along its circumference. A bristle plate 513 is slidably inserted onto a scraper 52. Multiple brushes 53 are spaced apart along the extension shaft 512. The multiple brushes 53 and scrapers 52 are spaced apart on the extension shaft 512. A locking member 514 is installed on the extension shaft 512 and is used to position the extension shaft 512 on the support shaft 511. In this embodiment, the locking member 514 includes locking pins, which are spaced apart along the length of the support shaft 511. Multiple holes are provided, and a locking pin passes through the extension shaft 512 and is inserted into one of the holes of the support shaft 511, thereby locking the extension shaft 512 onto the support shaft 511. A drive assembly 54 is mounted on the support shaft 511. The drive assembly 54 is used to drive the support shaft 511 to rotate when the transmission rod 242 rotates. In this embodiment, the drive assembly 54 includes three bevel gears and a drive shaft. The drive shaft is rotatably mounted on the lifting seat 31, with two bevel gears coaxially mounted at both ends of the drive shaft. The bevel gear at one end of the drive shaft... The drive shaft 242 is driven by a bevel gear, and another bevel gear is coaxially mounted on the support shaft 511. The bevel gear at the other end of the drive shaft meshes with the bevel gear on the support shaft 511, thereby enabling the support shaft 511 to rotate when the drive shaft 242 rotates. In this embodiment, a protective cover is also installed on the lifting seat 31. The protective cover protects the bevel gear set 243 and the drive assembly 54 on the rotor shaft 21, but it is not shown in the drawings in order to illustrate the driving relationship between the rotor shaft 21 and the support shaft 511.

[0043] Construction workers drive the extension shaft 512 to slide on the support shaft 511, adjusting the length of the extension shaft 51 to match the width of the old asphalt pavement to be renovated. Then, the extension shaft 512 is locked to the support shaft 511 using the locking piece 514. During the adjustment process, the insert plate 513 slides on the scraper 52. After the adjustment is completed, the scraper 52 supports the insert plate 513, ensuring the stability of the axial transmission between the support shaft 511 and the extension shaft 512. When the subsequent transmission rod 242 rotates to mill and break the asphalt pavement, the transmission shaft drives the support shaft 511 to rotate through the drive assembly 54. The support shaft 511 drives the extension shaft 512 to rotate, thereby causing the scraper 52, brush 53, and insert plate 513 to rotate. The scraper 52 and insert plate 513 scrape the broken old material onto the plate 3211, and the brush 53 then sweeps the milled and broken asphalt pavement, better cleaning the milled and broken pavement and effectively improving the cleaning effect of the milled and broken asphalt pavement.

[0044] Reference Figure 2 , Figure 6 The conveying mechanism 4 includes a first conveyor belt 41, a second conveyor belt 42, and an adjusting assembly 43. The first conveyor belt 41 is mounted on the vehicle body 1 and is connected to the end of the bucket 32 ​​away from the asphalt road surface. The second conveyor belt 42 is mounted on the adjusting assembly 43 and is connected to the first conveyor belt 41. The adjusting assembly 43 is mounted on the vehicle body 1 and is used to drive the second conveyor belt 42 to rotate. The adjusting assembly 43 includes a horizontal adjusting seat 431, a rotary cylinder 432, and an adjusting hydraulic cylinder 433. The horizontal adjusting seat 431 is rotatably mounted on the vehicle body 1 in the horizontal direction. The second conveyor belt 42 is hinged vertically on the horizontal adjusting seat 431. The rotary cylinder 432 is mounted on the vehicle body 1, and the output shaft of the rotary cylinder 432 is coaxially connected to the horizontal adjusting seat 431. The adjusting hydraulic cylinder 433 is hinged along the rotation direction of the second conveyor belt 42 on the horizontal adjusting seat 431, and the piston rod of the adjusting hydraulic cylinder 433 is hinged to the second conveyor belt 42.

[0045] As the traveling vehicle 1 moves forward, the milled and crushed old material transferred by the collecting mechanism 5 to the bucket 32 ​​gradually moves towards the first conveyor belt 41 under the action of compression. The first conveyor belt 41 transports the old material to the second conveyor belt 42, which then outputs the milled and crushed old material to the transport vehicle following the traveling vehicle 1. At the same time, depending on the construction site environment, the horizontal adjustment seat 431 can be rotated by the rotating cylinder 432. The horizontal adjustment seat 431 drives the second conveyor belt 42 to rotate horizontally, adjusting the horizontal direction of the second conveyor belt 42. The piston rod of the hydraulic cylinder 433 can be extended and retracted to drive the second conveyor belt 42 to rotate vertically, adjusting the height of the second conveyor belt 42 so that the output position of the second conveyor belt 42 meets the needs of different output of milled and crushed old material.

[0046] The implementation principle of the asphalt road cold recycling equipment in this application embodiment is as follows: The traveling vehicle 1 moves to the old asphalt pavement to be renovated. The height of the lifting seat 31 is adjusted by the lifting hydraulic cylinder 331, thereby adjusting the height of the rotor shaft 21, the telescopic shaft 51, and the bucket 32 ​​to be consistent with the height of the asphalt pavement to be renovated. The number of cutter heads 22 on the rotor shaft 21, the width of the telescopic shaft 51, and the number of protrusions of the adjusting blocks 3212 on the bucket 32 ​​are also adjusted to be consistent with the width of the asphalt pavement to be renovated. As the traveling vehicle 1 moves forward along the asphalt pavement, the rotor shaft 21 drives the cutter heads 22 to rotate. The old asphalt pavement is milled and crushed. The telescopic shaft 51 drives the scraper 52, brush 53 and insert plate 513 to rotate, collecting the milled and crushed old material into the bucket 32. The old material in the bucket 32 ​​is transported by the first conveyor belt 41 to the second conveyor belt 42, and then output by the second conveyor belt 42. This process realizes the milling and crushing of the old asphalt pavement and the cleaning of the milled and crushed old material, effectively reducing the workload of cleaning the milled and crushed asphalt pavement. It also improves the problem that a lot of manpower and resources are still needed to clean up the milled and crushed asphalt pavement during cold recycling of asphalt roads, thus improving the construction efficiency of asphalt pavement renovation and reducing construction costs.

[0047] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A cold recycling device for asphalt roads, characterized in that: The system includes a traveling vehicle body (1), a milling mechanism (2), a cleaning mechanism (3), and a conveying mechanism (4). The milling mechanism (2) is mounted on the traveling vehicle body (1) and is used to mill and break up the old asphalt pavement. The cleaning mechanism (3) is mounted on the traveling vehicle body (1) and is used to collect the milled and broken old material to the conveying mechanism (4). The cleaning mechanism (3) includes a lifting seat (31), a bucket (32), and a lifting assembly (33). The lifting seat (31) is vertically slidably mounted on the traveling vehicle body (1). The bucket (32) is inclinedly mounted on the lifting seat (31). The lifting assembly (33) is mounted on the traveling vehicle body (1) and is used to drive the lifting seat (31) to slide. The conveying mechanism (4) is mounted on the traveling vehicle body (1) and is used to output the milled and broken old material from the bucket (32). The bucket (32) includes a bottom plate (321), side plates (322) and an adjusting member (323). The bottom plate (321) is inclinedly mounted on the lifting seat (31). There is one side plate (322) slidably mounted on each side of the bottom plate (321). The side plates (322) gradually tilt upward from the edge of the bottom plate (321) towards the middle of the bottom plate (321). The adjusting member (323) is mounted on the bottom plate (321) and is used to drive the two side plates (322) to move closer to or further away from each other. The milling mechanism (2) includes a rotor shaft (21), a cutter head (22), a hydraulic motor (23), and a transmission assembly (24). The rotor shaft (21) is rotatably mounted on the lifting seat (31), the cutter head (22) is mounted on the rotor shaft (21), the hydraulic motor (23) is mounted on the traveling vehicle body (1), and the transmission assembly (24) is mounted on the traveling vehicle body (1) and is used to drive the rotor shaft (21) to rotate when the hydraulic motor (23) is started. The cutter head (22) is detachably provided in multiple parts on the rotor shaft (21) along the length direction of the rotor shaft (21). The base plate (321) includes a plate body (3211), an adjusting block (3212), and a positioning member (3213). The plate body (3211) is provided on the lifting seat (31), and the side plate (322) is provided on the plate body (3211). Multiple adjusting blocks (3212) are slidably inserted at one end of the plate body (3211) away from the lifting seat (31). The positioning member (3213) is provided on the plate body (3211) and is used to position the adjusting block (3212). The lifting seat (31) is provided with a material collection mechanism (5) for collecting the crushed old material into the bucket (32). The material collection mechanism (5) includes a telescopic shaft (51), a scraper (52), a brush (53) and a drive assembly (54). The telescopic shaft (51) is rotatably mounted on the lifting seat (31). The length of the telescopic shaft (51) is telescopic. The scraper (52) is mounted on the telescopic shaft (51). The brush (53) is mounted on the telescopic shaft (51). The scraper (52) and the brush (53) are distributed circumferentially along the telescopic shaft (51). The drive assembly (54) is mounted on the telescopic shaft (51) and is used to drive the telescopic shaft (51) to rotate when the transmission rod (242) rotates.

2. The asphalt road cold recycling equipment according to claim 1, characterized in that: The lifting assembly (33) includes a lifting hydraulic cylinder (331), a level (332) and a controller. The lifting hydraulic cylinder (331) is provided on both sides of the traveling vehicle body (1) of the lifting seat (31). The piston rod of the lifting hydraulic cylinder (331) is hinged to the lifting seat (31). The level (332) is provided on the lifting seat (31) and is used to detect the levelness of the lifting seat (31). The controller is provided on the traveling vehicle body (1) and is electrically connected to both the lifting hydraulic cylinder (331) and the level (332).

3. The asphalt road cold recycling equipment according to claim 1, characterized in that: The transmission assembly (24) includes a transmission sleeve (241), a transmission rod (242), and a bevel gear set (243). The transmission sleeve (241) is coaxially mounted on the output shaft of the hydraulic motor (23). The transmission rod (242) is slidably inserted into the transmission sleeve (241). The cross-sectional shape of the openings of the transmission rod (242) and the transmission sleeve (241) is polygonal. The bevel gear set (243) is mounted on the transmission rod (242) and is used to drive the rotor shaft (21) to rotate.

4. The asphalt road cold recycling equipment according to claim 1, characterized in that: The telescopic shaft (51) includes a support shaft (511), an extension shaft (512), a insert plate (513), and a locking member (514). The support shaft (511) is rotatably mounted on the lifting seat (31). The extension shaft (512) is slidably sleeved at both ends of the support shaft (511). The insert plate (513) is mounted on the support shaft (511). The scraper (52) is mounted on the extension shaft (512). The insert plate (513) is mounted on the support shaft (511) and slidably inserted on the scraper (52). The locking member (514) is mounted on the extension shaft (512) and is used to lock the extension shaft (512) on the support shaft (511).

5. The asphalt road cold recycling equipment according to claim 1, characterized in that: The conveying mechanism (4) includes a first conveyor belt (41), a second conveyor belt (42), and an adjusting component (43). The first conveyor belt (41) is mounted on the traveling vehicle body (1) and communicates with the bucket (32). The second conveyor belt (42) is horizontally rotatably mounted on the traveling vehicle body (1) and communicates with the first conveyor belt (41). The adjusting component (43) is mounted on the traveling vehicle body (1) and is used to drive the second conveyor belt (42) to rotate.

6. The asphalt road cold recycling equipment according to claim 5, characterized in that: The adjustment assembly (43) includes a horizontal adjustment seat (431), a rotary cylinder (432), and an adjustment hydraulic cylinder (433). The horizontal adjustment seat (431) is horizontally rotatably mounted on the traveling vehicle body (1). The rotary cylinder (432) is mounted on the traveling vehicle body (1) and is used to drive the horizontal adjustment seat (431) to rotate. The second conveyor belt (42) is vertically hinged to the horizontal adjustment seat (431). The adjustment hydraulic cylinder (433) is hinged to the traveling vehicle body (1) and hinged to the second conveyor belt (42).

Images