A road construction edge asphalt collection device and its construction technology

Abstract

This application discloses a road construction edge asphalt collection device and its construction technology, relating to the field of road construction technology. The collection device includes a machine body, a walking mechanism, and an operation control system, as well as: a shoveling mechanism for shoveling asphalt waste at the edge of the road surface as the machine body moves forward; a waste bin located at the rear of the machine body for temporarily storing the asphalt waste; a separation mechanism located inside the waste bin for heating and separating asphalt, aggregate, and other solid impurities from the asphalt waste; a mixing and feeding mechanism located at the rear of the waste bin for remixing and conveying the separated asphalt and aggregate; and a conveying mechanism for transferring the asphalt waste shoveled by the shoveling mechanism to the waste bin. The collection device can promptly shovel, clean, and collect asphalt waste at the edge of the road surface before the asphalt waste solidifies, thereby effectively reducing asphalt waste and edge residue while ensuring construction efficiency.

Description

Technical Field

[0001] This application relates to the field of road construction technology, and in particular to a road construction edge asphalt collection device and its construction process. Background Technology

[0002] Asphalt is frequently used to pave roads during municipal road construction. At room temperature, asphalt is a black or dark brown viscous liquid or solid. Asphalt has certain characteristics of resistance to rutting, peeling, and aging, as well as certain weather resistance, which can effectively extend the service life of roads.

[0003] In related technologies, hot-mix asphalt pavers are commonly used for asphalt paving of roads. A hot-mix asphalt paver is an asphalt construction equipment that evenly spreads asphalt mixture on the road base and performs preliminary compaction and leveling. It mainly consists of an engine, transmission system, walking mechanism, material supply system, operation control system, frame, leveling boom, screed, and automatic leveling system. Based on the paving width, it is divided into four types: small, medium, large, and extra-large. Its process mainly includes: 1. Work preparation; 2. Heat-up engine and screed preheating and insulation; 3. Unloading; 4. Starting and walking; 5. Normal walking and paving; 6. Cyclic operation; 7. Paving completion.

[0004] Regarding the aforementioned technologies, during the repair, maintenance, and reconstruction of asphalt roads using small and medium-sized hot-mix asphalt pavers, a large amount of asphalt concrete scrap inevitably occurs at the road edges. This requires manual shoveling to smooth the asphalt at the edges, affecting construction efficiency. Furthermore, once the asphalt scrap has solidified, it is difficult for operators to continue collecting it, resulting in a certain amount of asphalt waste. The removal of excess scrap and subsequent edge trimming are also quite cumbersome, and failure to handle them promptly will also affect the paving process. Summary of the Invention

[0005] In order to improve the problems of a large amount of asphalt concrete scraps at the edges of the road surface during asphalt paving, and the resulting reduction in construction efficiency and asphalt waste, this application provides a road construction scrap asphalt collection device and its construction process.

[0006] This application provides a road construction edge asphalt collection device, which adopts the following technical solution:

[0007] A road construction edge asphalt collection device includes a body, a traveling mechanism, and an operation control system. It also includes a shoveling mechanism located at the front of the body for shoveling asphalt waste at the road edge as the body moves forward; a waste bin located at the rear of the body for temporarily storing the asphalt waste; a separation mechanism located within the waste bin for heating and separating asphalt, aggregate, and other solid impurities from the asphalt waste; a mixing and feeding mechanism located at the rear of the waste bin for remixing and conveying the separated asphalt and aggregate; and a conveying mechanism for transferring the asphalt waste shoveled by the shoveling mechanism to the waste bin.

[0008] By adopting the above technical solution, in the process of repairing, maintaining, and expanding asphalt roads using small / medium-sized hot-mix asphalt pavers, the operation control system of the collection equipment controls the walking mechanism to drive the machine body forward in a straight line along with the hot-mix asphalt paver. Correspondingly, during the forward movement of the machine body, the operator can use the shoveling mechanism to continuously shovel asphalt waste at the edge of the road surface, and use the transmission mechanism to continuously transmit the shoveled asphalt waste to the waste bin. When a certain amount of asphalt waste is collected in the waste bin, the separation mechanism heats and separates the asphalt, aggregate, and other solid impurities in the asphalt waste. Finally, the mixing and feeding mechanism remixes the separated asphalt and aggregate, and uses the mixing and feeding mechanism to re-transfer and put the remixed asphalt and aggregate back into use. The collection equipment follows the hot-mix asphalt paver and can promptly shovel, clean, and collect asphalt waste from the road edge into the waste bin before it solidifies. It also effectively separates asphalt, aggregate, and other solid impurities from the asphalt waste using a separation mechanism and a mixing and feeding mechanism, and then remixes the separated asphalt and aggregate. This ensures construction efficiency while effectively reducing asphalt waste and scrap residue, and simplifies the subsequent edge trimming of the road base.

[0009] Optionally, the shovel mechanism includes a horizontally lifting mounting beam at the front end of the machine body and two sets of sliding seats slidably mounted in front of the mounting beam along its length. The lower part of the opposite side of each sliding seat protrudes integrally towards the front of the machine body and is fixedly mounted with a shovel strip. The mounting beam has symmetrically connected mounting grooves and two sets of first discharge ports at both ends. The mounting grooves are located in front of the mounting beam and the openings of the mounting grooves are arranged horizontally forward. The feed end of the transmission mechanism is connected to the first discharge port, and the discharge end is connected to the waste bin. The two sets of sliding seats move closer to / away from the corresponding first discharge port, and each set of sliding seats is also equipped with a material-pushing component for pushing the asphalt material to the corresponding first discharge port.

[0010] By adopting the above technical solution, the operator can adjust the distance between the two sets of sliding seats to adapt the shovel to the actual width of the asphalt pavement, and make the shovel move forward with the mounting beam as the machine body moves forward. This allows the shovel to shovel the asphalt waste from bottom to top into the mounting groove, and the asphalt waste is transferred from the mounting groove to the first discharge port as the machine body continues to move forward. The transfer mechanism can then transfer the asphalt waste from the first discharge port to the waste bin for collection, thus making it easier to shovel and transfer the asphalt.

[0011] Optionally, the transmission mechanism is a screw feeder.

[0012] By adopting the above technical solution, the screw feeder has a simple structure, large load-bearing capacity, safety and reliability, and a large conveying force. It can quickly and evenly convey materials and can effectively adapt to the relatively viscous nature of asphalt waste and the easy adhesion of fluid asphalt itself. Thus, it can quickly and stably transfer asphalt waste to the waste bin and agitate and crush the asphalt waste to a certain extent during the transfer process.

[0013] Optionally, the separation mechanism includes a heating component fixedly installed inside the waste bin, a screening plate lifted and lowered inside the waste bin, and a first drive component for driving the screening plate to move vertically up and down reciprocally. The screening plate is evenly provided with a plurality of screen holes with a diameter smaller than that of the crushed stone particles. The screening plate is always located below the connection between the discharge end of the transmission mechanism and the waste bin. The heating component and the first drive component are both electrically connected to the operation control system and controlled by the operation control system.

[0014] By adopting the above technical solution, after the asphalt waste enters the waste bin, the operator can control the heating component to heat the asphalt waste through the operation control system, so that the asphalt is restored to a fluid state. At the same time, the first drive component drives the screening plate to continuously rise and fall in the vertical direction, thereby separating other solid impurities with a density greater than that of asphalt (mainly the soil that is shoveled together with the asphalt waste and conducted to the waste bin) and crushed stone in the asphalt waste, and obtaining fluid asphalt and crushed stone with fewer impurities, so that the asphalt and crushed stone can be reused in the future.

[0015] Optionally, the first drive assembly includes a mounting frame slidably connected to the waste bin in a vertical direction, a drive shaft rotatably mounted on the side wall of the waste bin about any horizontal axis, a connecting rod with one end vertically and fixedly mounted on the drive shaft, a rotating disk fixedly mounted on the end of the connecting rod away from the drive shaft, and a first power component for driving the drive shaft to rotate; the drive shaft is perpendicular to the side wall of the waste bin on which it is rotatably mounted, the mounting frame and the rotating disk are both perpendicular to the drive shaft, and the upper and lower borders of the mounting frame are both horizontally arranged, the screening plate is detachably and fixedly mounted on the lower border of the mounting frame, and the rotating disk is slidably connected to the mounting frame without slipping.

[0016] By adopting the above technical solution, as the operator uses the first power component to drive the drive shaft to rotate continuously, the drive shaft can drive the connecting rod to drive the rotating disk to rotate around the drive shaft. The rotating disk then drives the mounting frame to slide up and down accordingly, thereby continuously screening and filtering the crushed stone and other solid impurities in the fluid asphalt. The operation is simple and easy to implement.

[0017] Optionally, the separation mechanism further includes a stirring assembly located on the side of the rotating disk away from the drive shaft for stirring the material in the waste bin; the stirring assembly is located above the screening plate, and the stirring assembly includes a stirring rod fixedly installed on the rotating disk and multiple sets of stirring blades rotatably connected to the stirring rod, the stirring rod being parallel to the mounting shaft, and the multiple sets of stirring blades being evenly connected to the stirring rod along the axis of the stirring rod.

[0018] By adopting the above technical solution, as the rotating disc rotates, the stirring rod and stirring blade can continuously agitate the asphalt mixture in the collection box, thereby allowing the fluid asphalt to be heated more evenly and effectively separated from the crushed stone and other solid impurities; moreover, the stirring rod and stirring blade are raised and lowered synchronously with the screen plate, and the stirring rod and stirring blade are less likely to interfere with the screen plate, which is conducive to the collection equipment to more effectively separate the crushed stone and other solid impurities in the fluid asphalt and obtain fluid asphalt and crushed stone with fewer impurities.

[0019] Optionally, the separation mechanism further includes a hook assembly for hooking floating impurities in the material in the waste bin; the hook assembly includes a hook rod and hook wire located on the side of the rotating disk away from the drive shaft, one end of the hook rod is vertically and detachably fixed to the upper frame of the mounting frame, and the hook rod is parallel to the mounting shaft.

[0020] By adopting the above technical solution, as the rotating disc rotates, the hook rod and hook wire can move vertically up and down on the waste bin along with the installation frame, thereby hooking the impurities floating in the fluid asphalt between the hook rod and hook wire, further reducing the content of other impurities in the fluid asphalt and crushed stone, and facilitating subsequent remixing to obtain cleaner asphalt reusable material.

[0021] Optionally, the mixing and feeding mechanism includes a horizontal mixing cylinder and a rotating shaft and a spiral feeding blade rotatably installed inside the horizontal mixing cylinder. The feeding end of the horizontal mixing cylinder is connected to the side wall of the waste bin where the mounting shaft is installed, and the discharging end is located at the rear end of the machine body with the discharging port facing downwards. Both the feeding end and the discharging end of the horizontal mixing cylinder are also equipped with electric valves for opening and closing the corresponding openings. The electric valves are electrically connected to the operation control system and are controlled by the operation control system.

[0022] By adopting the above technical solution, the rotating shaft drives the spiral feeding blades to rotate continuously, and the electric valve controls the opening and closing of the feed end and discharge end of the horizontal mixing cylinder, which can effectively realize the conveying and mixing of fluid asphalt and crushed stone.

[0023] Optionally, the material feeding assembly includes a rotating rod rotatably mounted on a sliding seat, a material feeding paddle coaxially fixedly sleeved on the rotating rod, and a material feeding power component for driving the rotating rod to rotate. The material feeding power component is fixedly mounted on the side of the sliding seat near the central axis of the machine body, and the material feeding paddle is located above the shovel bar.

[0024] By adopting the above technical solution, during the forward movement of the machine body, the material-pushing power component drives the rotating rod to rotate the material-pushing paddle from top to bottom and toward the rear of the machine body. This allows the machine body to more easily and quickly shovel the asphalt waste and transfer the asphalt waste to the transmission mechanism, thereby cleaning the asphalt waste at the edge of the road surface.

[0025] This application also relates to providing a road construction process, based on the aforementioned road construction edge asphalt collection device, comprising the following steps:

[0026] Step 1: Use a hot-mix asphalt paver to evenly spread the asphalt mixture on the road base, and then initially compact and level it;

[0027] Step 2: Start the edge asphalt collection device behind the hot mix asphalt paver. Use the walking mechanism to drive the machine body to follow the hot mix asphalt paver forward. Adjust the spacing between the two sets of shovels in advance according to the actual width of the road base using the sliding seat.

[0028] Step 3: The operation control system controls the shovel mechanism to continuously shovel the asphalt waste at the edge of the road. The transmission mechanism transmits the asphalt waste shoveled by the shovel mechanism to the waste bin. The separation mechanism heats and separates the asphalt, gravel and other solid impurities in the asphalt waste. Finally, the mixing and feeding mechanism remixes and conveys the separated asphalt and gravel to achieve the collection and reuse of asphalt waste.

[0029] In summary, this application includes at least one of the following beneficial technical effects:

[0030] 1. Through the cooperation of the shovel mechanism, waste bin, separation mechanism, mixing and feeding mechanism, and transmission mechanism with the machine body and walking mechanism, as the machine body moves forward, the collection equipment can promptly shovel and clean the asphalt waste at the edge of the road surface and collect it into the waste bin before the asphalt waste has solidified. The separation mechanism and mixing and feeding mechanism effectively separate asphalt, crushed stone and other solid impurities in the asphalt waste and remix the separated asphalt and crushed stone. This effectively reduces asphalt waste and scrap residue while ensuring construction efficiency, and makes subsequent edge trimming of the road base layer easier.

[0031] 2. By using a screw feeder to transfer asphalt waste, it is possible to effectively adapt to the relatively viscous nature of asphalt waste and the easy adhesion of fluid asphalt itself, and to transfer asphalt waste to the waste bin relatively quickly and stably, while agitating and crushing the asphalt waste to a certain extent during the transfer process;

[0032] 3. By combining the heating component, screening plate, first drive component, stirring component and hook component, the crushed stone and other solid impurities in the fluid asphalt can be separated more effectively, and fluid asphalt and crushed stone with less impurities can be obtained. This makes it easier for the mixing and feeding mechanism to remix the fluid asphalt and crushed stone in the subsequent process, so as to obtain cleaner asphalt recycled material. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0034] Figure 2 yes Figure 1 An enlarged schematic diagram of part A in the middle;

[0035] Figure 3 This is a partial structural diagram of an embodiment of this application;

[0036] Figure 4 yes Figure 3 Enlarged schematic diagram of part B in the middle;

[0037] Figure 5 This is a partial structural diagram of an embodiment of this application, showing a partially cutaway view of the waste bin and the horizontal mixing cylinder.

[0038] Reference numerals: 1. Machine body; 2. Traveling mechanism; 3. Shovel mechanism; 31. Mounting beam; 311. Mounting groove; 312. First discharge port; 32. Sliding seat; 33. Shovel bar; 34. Material feeding assembly; 341. Rotating rod; 342. Material feeding paddle; 343. Material feeding power component; 4. Waste bin; 5. Separation mechanism; 51. Heating assembly; 52. Screening plate; 53. First drive assembly; 531. Mounting frame; 532. Drive shaft; 533. Connecting rod; 534. Rotating disk; 535. First power component; 54. Mixing assembly; 541. Mixing rod; 542. Mixing blade; 55. Hook assembly; 551. Hook rod; 552. Hook wire; 6. Mixing and feeding mechanism; 61. Horizontal mixing cylinder; 62. Rotating shaft; 63. Spiral feeding paddle; 7. Transmission mechanism. Implementation

[0039] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0040] This application discloses an edge asphalt collection device for road construction.

[0041] Reference Figure 1 , Figure 2 and Figure 3 A road construction edge asphalt collection device includes a body 1, a walking mechanism 2 and an operation control system, and also includes a shoveling mechanism 3 located at the front end of the body 1 for shoveling asphalt waste at the edge of the road surface along with the body 1 as it moves forward.

[0042] The waste bin 4 located at the rear end of the machine body 1 is used to temporarily store asphalt waste, and the separation mechanism 5 located in the waste bin 4 is used to heat and separate asphalt, crushed stone and other solid impurities in the asphalt waste, and the mixing and feeding mechanism 6 located at the rear end of the waste bin 4 is used to remix and convey the separated asphalt and crushed stone.

[0043] And a transmission mechanism 7 for transferring the asphalt waste shoveled by the shovel mechanism 3 to the waste bin 4.

[0044] Specifically, refer to Figure 1 and Figure 2 The shovel mechanism 3 includes a mounting beam 31 that is lifted and installed at the front end of the machine body 1, and two sets of sliding seats 32 that are slidably installed in front of the mounting beam 31 along the length of the mounting beam 31. The lower part of the side of the sliding seats 32 that is far apart from each other protrudes in one piece towards the front of the machine body 1 and is fixedly installed with a shovel bar 33.

[0045] The mounting beam 31 is a horizontal beam that can be raised and lowered vertically, and its raising and lowering is controlled by the operation control system. The mounting beam 31 has symmetrically connected mounting grooves 311 and two sets of first discharge ports 312 at both ends. The mounting grooves 311 are located in front of the mounting beam 31, with their openings facing horizontally forward. The bottom wall of the mounting grooves 311 is the side wall of the mounting beam 31 closest to the machine body 1. The first discharge ports 312 are formed through the bottom wall of the mounting grooves 311 and are also rectangular openings, with their openings also facing horizontally forward.

[0046] The transmission mechanism 7 is a screw feeder. There are two sets of transmission mechanisms 7. The two sets of transmission mechanisms 7 are respectively arranged opposite to each other on both sides of the machine body 1. The two sets of screw feeders are parallel to each other. The screw feeder is rotated around any horizontal axis and connected to the machine body 1. The feed port of the screw feeder faces downward and the discharge port faces upward. The feed port of the screw feeder is connected to the first discharge port 312 and the discharge end is connected to the waste bin 4.

[0047] To achieve stable sliding of the sliding seat 32 in front of the mounting beam 31 and convenient shoveling of the asphalt waste by the shovel bar 33, the mounting is equipped with a screw, bevel gear set and drive motor to provide driving force for the sliding of the sliding seat 32 on the mounting beam 31. Each set of sliding seats 32 is also equipped with a material feeding component 34 for feeding the asphalt material to the corresponding first discharge port 312.

[0048] Specifically, refer to Figure 1 and Figure 2 The lead screw is horizontally installed in the mounting groove 311, and both ends of the lead screw are rotatably connected to the horizontal end walls of the mounting beam 31 corresponding to the mounting groove 311. The two ends of the lead screw are respectively provided with reverse thread sections. Two sets of sliding seats 32 are respectively sleeved and threadedly assembled to the two ends of the lead screw, and the two sets of sliding seats 32 move closer to / away from the corresponding first discharge port 312 under the drive of the lead screw.

[0049] The feeding assembly 34 includes a rotating rod 341 rotatably mounted on the sliding seat 32, a feeding paddle 342 coaxially fixed on the rotating rod 341, and a feeding power component 343 for driving the rotating rod 341 to rotate.

[0050] In this embodiment, the material feeding power component 343 can be a drive motor or hydraulic motor, etc. The material feeding power component 343 is fixedly installed on the side of the sliding seat 32 near the central axis of the machine body 1, and the output shaft of the material feeding power component 343 is arranged horizontally. The rotating rod 341 and the material feeding power component 343 are located on different sides of the sliding seat 32, and the rotating rod 341 is coaxially fixedly installed at the end of the output shaft of the material feeding power component 343. The material feeding paddle 342 and the rotating rod 341 are both located above the shovel bar 33.

[0051] After moving the installation beam 31 to the predetermined height and aligning the bottom height of the installation beam 31 and the bottom height of the shovel bar 33 with the elevation of the road base layer, the operator can use the operating control system of the collection equipment to control the walking mechanism 2 to drive the machine body 1 forward in a straight line along with the hot-mix asphalt paver. During the forward movement of the machine body 1, the material feeding power component 343 drives the rotating rod 341 to drive the material feeding paddle 342 to rotate from top to bottom and toward the rear of the machine body 1, so that the shovel bar 33 can continuously shovel the asphalt waste at the edge of the road and move the asphalt waste to the first discharge port 312, thereby achieving the shoveling and transfer of asphalt waste at the edge of the road in a relatively labor-saving, convenient and fast manner.

[0052] Reference Figure 3 and Figure 4 The separation mechanism 5 includes a heating component 51 fixedly installed inside the waste bin 4, a screening plate 52 lifted and lowered inside the waste bin 4, a first drive component 53 for driving the screening plate 52 to move vertically up and down and back and forth, a stirring component 54 for stirring the material inside the waste bin 4, and a hooking component 55 for hooking out floating impurities in the material inside the waste bin 4.

[0053] In this embodiment, the waste bin 4 is a rectangular box with its opening facing upwards. The short side of the waste bin 4 is aligned with the traveling direction of the machine body 1. In this embodiment, the heating component 51 consists of a heating tube and a control unit for controlling the opening, closing, and operation of the heating tube. The heating tube is fixedly installed on the inner wall and bottom wall of the waste bin 4. The control unit is electrically connected to and controlled by the operation control system. The operator can control the heating component to open the heating tube and make the heating tube uniformly heat the material in the waste bin 4 through the operation control system.

[0054] The screening plate 52 is a rectangular plate, and the screening plate 52 is arranged at an angle to the horizontal plane. The side of the screening plate 52 near the front end of the machine body 1 is higher than the side of the screening plate 52 near the rear end of the machine body 1. The side wall of the screening plate 52 near the front end of the machine body 1 and the two short side walls of the screening plate 52 are respectively fitted with the corresponding inner side wall of the waste box 4 with clearance. The screening plate 52 is evenly provided with a number of screen holes with a diameter smaller than the particle size of the crushed stone. The screening plate 52 is always located below the connection between the discharge end of the transmission mechanism 7 and the waste box 4.

[0055] The first drive assembly 53 includes a mounting frame 531 that is slidably connected to the waste bin 4 in a vertical direction, a drive shaft 532 that is rotatably mounted on the side wall of the waste bin 4 about any horizontal axis, a connecting rod 533 that is vertically and fixedly mounted on the drive shaft 532 at one end, a rotating disk 534 that is fixedly mounted on the end of the connecting rod 533 away from the drive shaft 532, and a first power member 535 for driving the drive shaft 532 to rotate.

[0056] Reference Figure 4The mounting frame 531 is an oval frame with uniform thickness throughout. The mounting frame 531 is arranged vertically, and the upper and lower edges of the mounting frame 531 are arranged horizontally. The screening plate is detachably and fixedly installed on the lower edge of the mounting frame 531. The mounting frame 531 and the rotating disk 534 are both perpendicular to the drive shaft 532. The drive shaft 532 is perpendicular to the side wall of the waste bin 4 on which it is rotated and installed. The rotating disk 534 is slidably connected to the mounting frame 531 without slipping.

[0057] After the asphalt waste enters the waste bin 4, the operator can control the heating component 51 through the operation control system to heat the asphalt waste, so that the asphalt returns to a fluid state. At the same time, the first power component 535 drives the drive shaft 532 to rotate continuously, driving the screening plate 52 to move up and down and back and forth in the vertical direction. This can separate other solid impurities in the asphalt waste with a density greater than that of asphalt (mainly the soil that is shoveled together with the asphalt waste by the shovel bar 33 and transferred to the waste bin 4) and crushed stone. The crushed stone and other solid impurities in the fluid asphalt are continuously screened and filtered, so that other solid impurities pass through the screen holes and settle between the screening plate 52 and the bottom wall of the waste bin 4, while the crushed stone stays above the screening plate 52, thus obtaining fluid asphalt and crushed stone with fewer impurities.

[0058] In this process, refer to Figure 3 and Figure 4 The stirring assembly 54 can cooperate with the sieve plate 52 and the first drive assembly 53. The stirring assembly 54 is located above the sieve plate 52. The stirring assembly 54 specifically includes a stirring rod 541 fixedly installed on the rotating disk 534 and multiple sets of stirring blades 542 rotatably connected to the stirring rod 541. The stirring rod 541 is parallel to the mounting shaft, and the multiple sets of stirring blades 542 are evenly connected to the stirring rod 541 along the axis of the stirring rod 541.

[0059] As the rotating block rotates, the stirring rod 541 and stirring blade 542 continuously agitate the asphalt mixture in the collection box, thereby allowing the fluid asphalt to be heated more evenly and effectively separated from the crushed stone and other solid impurities. Furthermore, the stirring rod 541 and stirring blade 542 move synchronously with the screening plate 52, making it less likely for the stirring rod 541 and stirring blade 542 to interfere with the screening plate 52. This facilitates the collection equipment to more effectively separate the crushed stone and other solid impurities from the fluid asphalt, obtaining fluid asphalt and crushed stone with fewer impurities.

[0060] Furthermore, the hook assembly 55 includes a hook rod 551 and a hook wire 552 located on the side of the rotating disk 534 away from the drive shaft 532. One end of the hook rod 551 is vertically and detachably fixed to the upper frame of the mounting frame 531, and the hook rod 551 is parallel to the mounting shaft.

[0061] As the rotating block rotates, the hook rod 551 and hook wire 552 can move vertically up and down on the waste bin 4 along with the installation frame 531, thereby hooking the impurities floating in the fluid asphalt between the hook rod 551 and hook wire 552, further reducing the content of other impurities in the fluid asphalt and crushed stone, and making it easier to remix later to obtain cleaner asphalt reusable material.

[0062] Reference Figure 3 and Figure 5 The mixing and feeding mechanism 6 includes a horizontal mixing cylinder 61, a rotating shaft 62 and a spiral feeding blade 63 rotatably installed inside the horizontal mixing cylinder 61. The horizontal mixing cylinder 61 is a straight cylinder, and the length direction of the horizontal mixing cylinder 61 is consistent with the travel direction of the machine body 1. The feeding end of the horizontal mixing cylinder 61 is connected to the side wall of the waste bin 4 where the mounting shaft is installed, and the discharge end is located at the rear end of the machine body 1 with the discharge port facing downward. The first power component 535 is fixedly installed at the rear end of the horizontal mixing cylinder 61, and the first power component 535 is a hydraulic motor in this embodiment of the application. The first power component 535 has a strong driving force. The rear end of the rotating shaft 62 is coaxially fixedly connected to the output shaft of the first power component 535, and the front end is coaxially fixedly installed on the drive shaft 532.

[0063] The horizontal mixing cylinder 61 is also equipped with electric valves at both the inlet and outlet ends for opening and closing the corresponding openings. The electric valves are electrically connected to the operation control system and are controlled by the operation control system.

[0064] The operation control system controls the first power component 535 to drive the rotating shaft 62 to drive the screw feed blades to rotate continuously. This enables the simultaneous screening of crushed stone and other solid and suspended impurities in the collection box, as well as the conveying and remixing of fluid asphalt and crushed stone in the horizontal mixing cylinder 61. This facilitates the obtaining of relatively clean asphalt reusable material and achieves effective recycling of asphalt waste.

[0065] This application also discloses a road construction process, based on the aforementioned road construction edge asphalt collection device, including the following steps:

[0066] Step 1: Use a hot-mix asphalt paver to evenly spread the asphalt mixture on the road base, and then initially compact and level it;

[0067] Step 2: Start the edge asphalt collection device behind the hot mix asphalt paver. Use the walking mechanism 2 to drive the machine body 1 to follow the hot mix asphalt paver forward. Adjust the spacing between the two sets of shovels 33 in advance according to the actual width of the road base using the sliding seat 32.

[0068] Step 3: The operation control system controls the shovel mechanism 3 to continuously shovel the asphalt waste at the edge of the road. The transmission mechanism 7 transmits the asphalt waste shoveled by the shovel mechanism 3 to the waste bin 4. The separation mechanism 5 heats and separates the asphalt, gravel and other solid impurities in the asphalt waste. Finally, the mixing and feeding mechanism 6 remixes and conveys the separated asphalt and gravel to achieve the collection and reuse of asphalt waste.

[0069] As the machine 1 moves forward, the collection equipment can promptly shovel and clean the asphalt waste at the edge of the road surface before it solidifies, and collect it into the waste bin 4. The separation mechanism 5 and the mixing and feeding mechanism 6 effectively separate asphalt, crushed stone and other solid impurities in the asphalt waste, and remix the separated asphalt and crushed stone. This effectively reduces asphalt waste and scrap residue while ensuring construction efficiency, and makes subsequent edge trimming of the road base easier.

[0070] 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 road construction edge asphalt collection device, comprising a body (1), a walking mechanism (2), and an operation control system, characterized in that: It also includes a shovel mechanism (3) located at the front of the machine body (1) for shoveling asphalt waste at the edge of the road surface along with the machine body (1) when it moves forward; The waste bin (4) located at the rear end of the machine body (1) is used to temporarily store asphalt waste, and the separation mechanism (5) located in the waste bin (4) is used to heat and separate asphalt, crushed stone and other solid impurities in the asphalt waste, and the mixing and feeding mechanism (6) located at the rear end of the waste bin (4) is used to remix and convey the separated asphalt and crushed stone. And a conveying mechanism (7) for conveying the asphalt waste shoveled by the shoveling mechanism (3) to the waste bin (4); The shovel mechanism (3) includes a horizontally lifting mounting beam (31) at the front end of the machine body (1) and two sets of sliding seats (32) that are slidably installed in front of the mounting beam (31) along the length direction of the mounting beam (31). The lower part of the sliding seats (32) on the opposite side protrudes in one piece towards the front of the machine body (1) and is fixedly installed with shovel strips (33). The separation mechanism (5) includes a heating component (51) fixedly installed inside the waste bin (4), a screening plate (52) lifted and lowered inside the waste bin (4), and a first drive component (53) for driving the screening plate (52) to move vertically up and down. The screening plate (52) is evenly provided with a plurality of screen holes with a diameter smaller than that of the crushed stone particles. The screening plate (52) is always located below the connection between the discharge end of the transmission mechanism (7) and the waste bin (4).

2. The road construction corner asphalt collection device according to claim 1, characterized in that: The mounting beam (31) has symmetrically connected mounting grooves (311) and two sets of first discharge ports (312) at both ends. The mounting grooves (311) are located in front of the mounting beam (31) and the openings of the mounting grooves (311) are arranged horizontally forward. The feeding end of the transmission mechanism (7) is connected to the first discharge port (312) and the discharge end is connected to the waste bin (4). The two sets of sliding seats (32) move closer to / away from the corresponding first discharge port (312) respectively. Each set of sliding seats (32) is also equipped with a material feeding component (34) for feeding the asphalt material to the corresponding first discharge port (312).

3. A road construction edge asphalt collection device according to claim 1 or 2, characterized in that: The transmission mechanism (7) is a screw feeder.

4. The road construction corner asphalt collection device according to claim 3, characterized in that: Both the heating component (51) and the first drive component (53) are electrically connected to and controlled by the operation control system.

5. The road construction corner asphalt collection device according to claim 4, characterized in that: The first drive assembly (53) includes a mounting frame (531) slidably connected in the vertical direction within the waste bin (4), a drive shaft (532) rotatably mounted on the side wall of the waste bin (4) about any horizontal axis, a connecting rod (533) with one end vertically and fixedly mounted on the drive shaft (532), a rotating disk (534) fixedly mounted on the end of the connecting rod (533) away from the drive shaft (532), and a first power component (535) for driving the drive shaft (532) to rotate. The drive shaft (532) is perpendicular to the side wall of the waste bin (4) on which it is rotatably mounted. The mounting frame (531) and the rotating disk (534) are both perpendicular to the drive shaft (532). The upper and lower edges of the mounting frame (531) are horizontally arranged. The screening plate (52) is detachably and fixedly mounted on the lower edge of the mounting frame (531). The rotating disk (534) is slidably connected to the mounting frame (531) without slipping.

6. The road construction corner asphalt collection device according to claim 5, characterized in that: The separation mechanism (5) further includes a stirring assembly (54) for stirring materials in the waste bin (4) located on the side of the rotating disk (534) away from the drive shaft (532); the stirring assembly (54) is located above the screening plate (52), and the stirring assembly (54) includes a stirring rod (541) fixedly installed on the rotating disk (534) and multiple sets of stirring blades (542) rotatably connected to the stirring rod (541). The stirring rod (541) is parallel to the mounting shaft, and the multiple sets of stirring blades (542) are evenly connected to the stirring rod (541) along the axis of the stirring rod (541).

7. The road construction corner asphalt collection device according to claim 5, characterized in that: The separation mechanism (5) further includes a hook assembly (55) for hooking floating impurities in the material in the waste bin (4); the hook assembly (55) includes a hook rod (551) and a hook wire (552) located on the side of the rotating disk (534) away from the drive shaft (532). One end of the hook rod (551) is vertically and detachably fixed on the upper frame of the mounting frame (531), and the hook rod (551) is parallel to the mounting shaft.

8. The road construction corner asphalt collection device according to claim 5, characterized in that: The mixing and feeding mechanism (6) includes a horizontal mixing cylinder (61) and a rotating shaft (62) and a spiral feeding blade (63) rotatably installed inside the horizontal mixing cylinder (61). The feeding end of the horizontal mixing cylinder (61) is connected to the side wall of the waste bin (4) where the mounting shaft is installed, and the discharge end is located at the rear end of the machine body (1) with the discharge port facing downward. The feeding end and the discharge end of the horizontal mixing cylinder (61) are also equipped with electric valves for opening and closing the corresponding openings. The electric valves are electrically connected to the operation control system and are controlled by the operation control system.

9. A road construction edge asphalt collection device according to claim 2, characterized in that: The feeding assembly (34) includes a rotating rod (341) rotatably mounted on a sliding seat (32), a feeding paddle (342) coaxially fixedly sleeved on the rotating rod (341), and a feeding power component (343) for driving the rotating rod (341) to rotate. The feeding power component (343) is fixedly mounted on the side of the sliding seat (32) near the central axis of the machine body (1), and the feeding paddle (342) is located above the shovel bar (33).

10. A road construction process, based on the road construction edge asphalt collection device according to any one of claims 1-9, characterized in that, Includes the following steps: Step 1: Use a hot-mix asphalt paver to evenly spread the asphalt mixture on the road base, and then initially compact and level it; Step 2: Start the edge material asphalt collection device behind the hot-mix asphalt paver, and use the walking mechanism (2) to drive the machine body (1) to follow the hot-mix asphalt paver forward. Adjust the distance between the two sets of shovel strips (33) in advance according to the actual width of the road base using the sliding seat (32). Step 3: The operation control system controls the shovel mechanism (3) to continuously shovel the asphalt waste at the edge of the road surface, and the transmission mechanism (7) transmits the asphalt waste shoveled by the shovel mechanism (3) to the waste bin (4). The separation mechanism (5) heats and separates the asphalt, crushed stone and other solid impurities in the asphalt waste. Finally, the mixing and feeding mechanism (6) remixes and conveys the separated asphalt and crushed stone to realize the collection and reuse of asphalt waste.

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