Foamed asphalt cold recycling mixture paving device

Abstract

The utility model relates to bituminous paving technical field, concretely is a kind of foamed asphalt cold recycling mixture paving device, including connecting frame, the connecting frame is equipped with the lifting assembly for adjusting paving thickness, the bottom of lifting assembly is equipped with cloth component, paving blade and press roll in proper order along material paving direction, both sides of the paving blade are equipped with suspension bracket, each the suspension bracket is equipped with the finishing component for rotating and poking edge material;By setting finishing component and trigger component, utilize first driving part to drive the rotation of oblique and upturned carousel and poking rod, the accurate poking finishing of paving edge scattered material can be carried out, form edge support constraint, avoid material collapse loose, guarantee edge linear type neat;At the same time, wave-shaped trigger groove cooperates with trigger rod, drives base plate to drive the vibration of poking rod, and the collaborative effect of rotating and poking forming is formed with poking rod, can break up viscous agglomerate material and large particle aggregate.

Description

Technical Field

[0001] This utility model relates to the field of asphalt paving technology, and in particular to a foamed asphalt cold recycled mixture paving device. Background Technology

[0002] Foamed asphalt cold recycled mixture is a green and environmentally friendly road construction material. It uses recycled old asphalt pavement material as the core raw material, combined with a small amount of new aggregate and active filler, and foamed asphalt as a binder. It is mixed at room temperature. The corresponding paving equipment is a special equipment for laying this mixture. It can efficiently realize the recycling of old pavement materials, achieve the goal of low-carbon, energy-saving and environmentally friendly construction, and meet the sustainable development needs of road construction.

[0003] A bridge asphalt low-temperature paving device disclosed in Chinese Patent Publication No. CN221972112U uses a heating ring inside the storage tank to maintain a certain temperature, thus keeping the asphalt material warm and improving paving quality. However, according to existing bridge asphalt low-temperature paving devices and technologies in related fields, traditional asphalt paving equipment lacks targeted edge restraint and trimming mechanisms during paving operations. The edges of the paved material are prone to collapse and loosening due to insufficient support, affecting the overall alignment and quality of the paved layer. At the same time, when dealing with viscous, easily agglomerated, or large-particle, poorly fluid mixtures, existing equipment lacks an efficient dispersing and uniform distribution structure, making it difficult to completely break up material agglomerates. This can easily lead to material residue accumulation, uneven paving thickness, and material segregation, reducing the density and uniformity of the paved layer. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art, solve the problems mentioned in the background art, and provide a foamed asphalt cold recycled mixture paving device.

[0005] The purpose of this utility model is achieved through the following technical solution: a foamed asphalt cold recycled mixture paving device, including a connecting frame, the connecting frame is provided with a lifting component for adjusting the paving thickness, the bottom of the lifting component is provided with a material spreading component, a paving scraper and a pressure roller in sequence along the material paving direction, the paving scraper is provided with suspension on both sides, and each suspension is provided with a trimming component for rotating and moving the edge material; The trimming assembly includes a rotating shaft that passes through and is rotatably mounted on the bottom of the suspension. A turntable is fixedly mounted at the lower end of the rotating shaft. The turntable is tilted toward the side of the spread material and its front side is raised. Multiple base plates are movably mounted on the bottom surface of the turntable. Multiple levers are fixedly mounted on each base plate. Triggering components for causing the multiple base plates to vibrate are fixedly mounted on the suspension at positions corresponding to the turntable. A first driving component for driving the rotating shaft to rotate is fixedly mounted on the suspension.

[0006] Preferably, the triggering component includes a trigger disc fixed to the bottom of the suspension, the trigger disc being located between the suspension and the turntable, and the side of the trigger disc facing the turntable having a trigger groove, the trigger groove being wavy in shape.

[0007] Preferably, the turntable has a movable groove corresponding to the position of each of the substrates, and the substrates are slidably connected to the corresponding movable grooves by multiple sliding pins. Each substrate is fixedly provided with a trigger rod corresponding to the position of the trigger groove, and the end of each trigger rod passes through the corresponding movable groove and extends into the trigger groove.

[0008] Preferably, the substrate extends radially along the turntable, and multiple substrates are arranged in a circumferential array.

[0009] Preferably, the lifting assembly includes a hydraulic cylinder fixedly mounted on the connecting frame, the extended end of the hydraulic cylinder extending downward through the connecting frame, and the extended end of the hydraulic cylinder is fixedly provided with a mounting frame, the top of the mounting frame is fixedly provided with multiple guide columns that slide with the connecting frame, and the pressure roller, the paving scraper and the suspension are all fixed to the bottom of the mounting frame.

[0010] Preferably, the fabric assembly includes a fabric hopper fixed to the mounting frame, and a conveying blade is rotatably mounted inside the fabric hopper.

[0011] Preferably, the conveying blade adopts a symmetrical bidirectional spiral structure, and a second driving component for driving the conveying blade to rotate is fixedly provided on the outside of the cloth hopper.

[0012] The beneficial effects of this foamed asphalt cold recycled mixture paving device are as follows: By setting up trimming and triggering components, the first driving component drives the tilted turntable and lever to rotate, which can precisely move and trim the scattered material at the paving edge, forming edge support constraints, preventing material collapse and loosening, and ensuring a regular edge line. At the same time, the wave-shaped trigger groove and trigger rod work together to drive the base plate to drive the lever to vibrate, which, together with the lever rotation, can efficiently break up sticky lumps and large particle agglomerates, ensuring uniform paving thickness, improving the overall density and flatness of the paving layer, and ensuring stable and reliable paving quality. In addition, the vibration effect can also reduce the adhesion of material on the lever surface, ensuring the cleanliness of the lever surface. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This utility model Figure 1 A magnified schematic diagram of the local structure at point A; Figure 3 This is a schematic diagram of the lifting assembly of this utility model; Figure 4 This is a schematic diagram showing the disassembled trimming components of this utility model; Figure 5 This is a cross-sectional view of the trimming component of this utility model; Figure 6 This is a schematic diagram showing the distribution of the levers of this utility model; Figure 7 This is a schematic diagram of the trigger component of this utility model.

[0015] In the diagram: 1. Connecting frame; 2. Lifting assembly; 21. Mounting frame; 22. Guide column; 23. Hydraulic cylinder; 3. Paving scraper; 4. Pressure roller; 5. Fabric assembly; 51. Fabric hopper; 52. Conveying blade; 6. Suspension; 7. Trimming assembly; 71. Rotary shaft; 72. Turntable; 73. Base plate; 74. Lever; 8. Trigger assembly; 81. Trigger plate; 82. Trigger groove; 9. First driving component; 10. Movable groove; 11. Sliding pin; 12. Trigger rod; 13. Second driving component. Detailed Implementation

[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0017] Additional aspects and advantages of this invention will be further set forth in the description which follows in conjunction with the accompanying drawings, and in part will be obvious from the description or may be learned by practice of the invention.

[0018] like Figures 1 to 7As shown, a foamed asphalt cold recycled mixture paving device includes a connecting frame 1. The connecting frame 1 is equipped with a lifting assembly 2 for adjusting the paving thickness. At the bottom of the lifting assembly 2, along the material paving direction, a material spreading assembly 5, a paving scraper 3, and a pressure roller 4 are sequentially arranged. Suspension frames 6 are provided on both sides of the paving scraper 3. Each suspension frame 6 is equipped with a trimming assembly 7 for rotating and agitating the edge material. The trimming assembly 7 includes a rotating shaft 71 that passes through and is rotatably mounted at the bottom of the suspension frame 6. A turntable 72 is fixedly mounted at the lower end of the rotating shaft 71. The turntable 72 is inclined towards the paving material and its front side is raised. Multiple base plates 73 are movably mounted on the bottom surface of the turntable 72. The base plates 73 extend radially along the turntable 72 and are arranged in a circumferential array. Multiple levers 74 are fixedly mounted on each base plate 73. Triggering components 8 for causing the multiple base plates 73 to vibrate are fixedly mounted on the suspension frames 6 at positions corresponding to the turntable 72. The device includes a first drive component 9 for driving the rotating shaft 71 to rotate. When the device is working, it is fixedly connected to the traction equipment via the connecting frame 1. Then, the paving thickness is adjusted by the lifting component 2. After adjustment, the device moves at a constant speed along the construction route under the drive of the traction equipment. During this process, the foamed asphalt cold recycled mixture is continuously fed into the spreading component 5. After being evenly distributed by the spreading component 5, it is leveled by the paving scraper 3 and compacted by the pressure roller 4 in sequence, finally forming a paving layer that meets the requirements of thickness and flatness. At the same time, the suspension 6 supports the first drive component 9 to control the rotation of the rotating shaft 71 and the turntable 72. The turntable 72 drives the lever 74 to rotate around the rotating shaft 71 through the base plate 73, which pushes the material scattered at the edge of the paving towards the center to achieve edge trimming. During this process, the base plate 73 drives the lever 74 to vibrate under the action of the trigger component 8, which can effectively break up the lumpy material in the mixture, further improve the density and uniformity of the paving layer, and ensure the paving quality.

[0019] like Figure 3 As shown, the lifting assembly 2 includes a hydraulic cylinder 23 fixedly installed on the connecting frame 1. The extended end of the hydraulic cylinder 23 extends downward through the connecting frame 1, and a mounting frame 21 is fixedly provided on the extended end of the hydraulic cylinder 23. Multiple guide columns 22 that slide and cooperate with the connecting frame 1 are fixedly provided on the top of the mounting frame 21. The pressure roller 4, paving scraper 3, and suspension 6 are all fixed to the bottom of the mounting frame 21. Before construction, the extension and retraction of the hydraulic cylinder 23 is adjusted through the hydraulic control system according to the designed paving thickness parameters. The hydraulic cylinder 23 drives the mounting frame 21 to rise and fall synchronously, thereby changing the height difference between the paving scraper 3 and the pressure roller 4 and the ground. The multiple guide columns 22 can effectively limit the lateral displacement of the mounting frame 21, ensuring that the mounting frame 21 always remains horizontal during the lifting process, and avoiding uneven paving thickness due to component tilt.

[0020] like Figure 1 and Figure 3As shown, the fabric assembly 5 includes a fabric hopper 51 fixed on the mounting frame 21. A conveying blade 52 is rotatably mounted inside the fabric hopper 51. The conveying blade 52 adopts a symmetrical bidirectional spiral structure. A second driving member 13 for driving the conveying blade 52 to rotate is fixed on the outside of the fabric hopper 51. After the material enters the fabric hopper 51, the second driving member 13 drives the conveying blade 52 to rotate. The bidirectional spiral structure of the conveying blade 52 can push the concentrated mixture in the hopper laterally to both sides at the same time, so that the material is evenly distributed to the outlet of the fabric hopper 51 along the paving width direction, effectively eliminating the phenomenon of material segregation.

[0021] like Figure 2 , Figure 4 and Figure 7 As shown, the trigger assembly 8 includes a trigger disc 81 fixed to the bottom of the suspension 6. The trigger disc 81 is located between the suspension 6 and the turntable 72. A trigger groove 82 is formed on the side of the trigger disc 81 facing the turntable 72. The trigger groove 82 is wavy in shape. A movable groove 10 is formed on the turntable 72 corresponding to the position of each base plate 73. The base plate 73 and the corresponding movable groove 10 are slidably connected by multiple sliding pins 11. A trigger rod 12 is fixedly provided on each base plate 73 corresponding to the position of the trigger groove 82. The end of each trigger rod 12 passes through the corresponding movable groove 10 and extends into the trigger groove 82. When When the first driving component 9 drives the rotating shaft 71 and the turntable 72 to rotate, the trigger rod 12 on the substrate 73 moves in a circular motion synchronously with the turntable 72. Since the trigger groove 82 has a wave-shaped structure, the end of the trigger rod 12 will slide along the crests and troughs in the groove, thereby pushing the substrate 73 to reciprocate along the direction of the movable groove 10 under the restriction of the sliding pin 11, forming a vibration effect. This vibration, combined with the rotation of the lever 74, can effectively break up the clumps of material accumulated at the edge, making the material density more uniform, while preventing the material from sticking to the lever 74 and improving the flatness of the edge spreading.

[0022] The work process is as follows: S1: As Figure 1 and Figure 3 As shown, the connecting frame 1 is fixedly connected to the traction equipment, and the extension and retraction of the hydraulic cylinder 23 is adjusted by the hydraulic control system according to the paving thickness parameters of the construction design. The hydraulic cylinder 23 drives the mounting frame 21 and the paving scraper 3 and pressure roller 4 at the bottom to rise and fall synchronously. The guide column 22 restricts the lateral displacement of the mounting frame 21 to ensure that the mounting frame 21 is horizontal and accurately sets the height difference between the paving scraper 3 and the ground. S2: As Figure 3As shown, foamed asphalt cold recycled mixture is continuously fed into the placing hopper 51. The second drive unit 13 starts and drives the conveying blade 52 of the bidirectional spiral structure to rotate, pushing the concentrated mixture laterally and evenly to both sides, so that the material is evenly distributed along the paving width direction. After eliminating segregation, it falls from the outlet of the placing hopper 51. At the same time, the traction equipment drives the device to move at a constant speed along the construction route. The falling mixture is scraped by the paving scraper 3, initially forming a flat paving layer. S3: As Figure 2 , Figure 4 , Figure 5 and Figure 6 As shown, during the paving process, the first driving component 9 drives the rotating shaft 71 to rotate the turntable 72. The turntable 72 drives the lever 74 to rotate around the rotating shaft 71 through the base plate 73, which pushes the material scattered at the edge of the paving towards the center to achieve edge trimming. S4: As Figures 4 to 7 As shown, when the turntable 72 rotates, the trigger rod 12 on the substrate 73 moves in a circular motion synchronously with the turntable 72. Since the trigger groove 82 has a wave-shaped structure, the end of the trigger rod 12 will slide along the crests and troughs in the groove, thereby pushing the substrate 73 to reciprocate along the direction of the movable groove 10 under the restriction of the sliding pin 11, forming a vibration effect. S5: As Figure 1 and Figure 2 As shown, the vibration combined with the rotation of the lever 74 can effectively break up the clumps of material accumulated at the edge, making the material density more uniform, while preventing the material from sticking to the lever 74 and improving the flatness of the edge spreading. S6: As Figure 1 and Figure 3 As shown, after leveling and trimming, the paving layer is further compacted by the rolling action of the pressure roller 4, which further improves the density of the paving layer, and finally forms a foamed asphalt cold recycled mixture paving layer that meets the requirements of thickness, flatness and density.

[0023] In this application, the connecting frame 1, paving scraper 3, hydraulic cylinder 23, first driving component 9 and second driving component 13 are known technologies in this field, and therefore their specific structures and working principles are not described in detail.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A foamed asphalt cold recycled mixture paving device, characterized in that: The system includes a connecting frame (1), on which a lifting assembly (2) for adjusting the paving thickness is provided. The bottom of the lifting assembly (2) is provided with a material spreading assembly (5), a paving scraper (3) and a pressure roller (4) in sequence along the material paving direction. Suspension frames (6) are provided on both sides of the paving scraper (3), and each suspension frame (6) is provided with a trimming assembly (7) for rotating and moving the edge material. The trimming assembly (7) includes a pivot (71) that passes through and is rotatably mounted on the bottom of the suspension (6). A turntable (72) is fixedly mounted on the lower end of the pivot (71). The turntable (72) is tilted toward the side of the spread material and its front side is raised. Multiple base plates (73) are movably mounted on the bottom surface of the turntable (72). Multiple levers (74) are fixedly mounted on each base plate (73). A triggering assembly (8) for causing the multiple base plates (73) to vibrate is fixedly mounted on the suspension (6) at the position corresponding to the turntable (72). A first driving member (9) for driving the pivot (71) to rotate is fixedly mounted on the suspension (6).

2. The foamed asphalt cold recycled mixture paving device according to claim 1, characterized in that: The triggering component (8) includes a triggering disc (81) fixed to the bottom of the suspension (6). The triggering disc (81) is located between the suspension (6) and the turntable (72). The side of the triggering disc (81) facing the turntable (72) has a triggering groove (82) with a wave-shaped shape.

3. The foamed asphalt cold recycled mixture paving device according to claim 2, characterized in that: The turntable (72) has a movable groove (10) corresponding to the position of each of the substrates (73). The substrates (73) and the corresponding movable grooves (10) are slidably connected by multiple sliding pins (11). Each substrate (73) is fixedly provided with a trigger rod (12) corresponding to the position of the trigger groove (82). The end of each trigger rod (12) passes through the corresponding movable groove (10) and extends into the trigger groove (82).

4. The foamed asphalt cold recycled mixture paving device according to claim 1, characterized in that: The substrate (73) extends radially along the turntable (72), and multiple substrates (73) are arranged in a circumferential array.

5. The foamed asphalt cold recycled mixture paving device according to claim 1, characterized in that: The lifting assembly (2) includes a hydraulic cylinder (23) fixedly installed on the connecting frame (1). The extended end of the hydraulic cylinder (23) passes through the connecting frame (1) downwards, and the extended end of the hydraulic cylinder (23) is fixedly provided with a mounting frame (21). The top of the mounting frame (21) is fixedly provided with multiple guide columns (22) that slide with the connecting frame (1). The pressure roller (4), the paving scraper (3), and the suspension (6) are all fixed to the bottom of the mounting frame (21).

6. The foamed asphalt cold recycled mixture paving device according to claim 5, characterized in that: The fabric assembly (5) includes a fabric hopper (51) fixed to the mounting frame (21), and a conveying blade (52) is rotatably mounted inside the fabric hopper (51).

7. A foamed asphalt cold recycled mixture paving device according to claim 6, characterized in that: The conveying blade (52) adopts a symmetrical bidirectional spiral structure, and the outer side of the cloth hopper (51) is fixed with a second driving member (13) for driving the conveying blade (52) to rotate.

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