Construction device and method for double-layer ESMA asphalt mixture

Abstract

The invention provides a double-layer ESMA asphalt mixture construction device and method. The double-layer ESMA asphalt mixture construction device comprises a supporting frame. The side wall of the supporting frame is provided with a discharging mechanism used for conveying the epoxy asphalt mixture, and the side wall of the supporting frame is provided with an adjusting mechanism used for adjusting the angle and the height of the leveling mechanism. A cleaning mechanism for preventing dead materials from being generated in the discharging mechanism is installed on the side wall of the leveling mechanism, and a leveling mechanism used for adjusting the flatness of the bottom face of the leveling mechanism is installed on the side wall of the adjusting mechanism. The construction device and method for the double-layer ESMA asphalt mixture have the advantage that the flatness of a pavement layer is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of double-layer asphalt paving, and in particular to a construction device and method for a double-layer ESMA asphalt mixture. Background Art

[0002] Epoxy asphalt mixture ESMA is a new type of road material with epoxy resin as binder and asphalt as base material. It forms a thermosetting structure by adding mineral fillers and curing agents, and has excellent durability and mechanical properties.

[0003] When paving a double layer of epoxy asphalt mixture, a double-layer asphalt mixture paver is required. First, a high-efficiency crawler-type asphalt mixture transfer vehicle is required to assist the mixture paver in carrying out the operation. Secondly, when dump trucks loaded with different types of epoxy asphalt mixtures alternately unload the materials into the loading truck, the transfer vehicle transports the mixture to the two hoppers of the double-layer paver. Then, two sets of spiral distributors and screed plates are used to layer the mixture in one step to complete the paving operation. After that, a compactor is used to compact both layers of the road surface at once. The double-layer asphalt paving technology spreads the upper and lower layers of asphalt mixture in two passes. The upper layer is compacted using the waste heat from the lower layer, forming a thermal bridge effect, enhancing the adhesion between the layers, improving the density, reducing the amount of asphalt used in the wearing layer, and lowering production costs.

[0004] Under the traditional single-layer paving construction technology, the main process is paving and leveling layer by layer, and the flatness control is relatively easy. However, in the double-layer paving process, since two adjacent layers of mixture are paved at the same time, it is impossible to level them layer by layer in time, and the ironing plate is constantly vibrating at a height of 120°C. The high temperature increases the plasticity of the ironing plate, resulting in a large vibration amplitude at the edge of the ironing plate, affecting the flatness of the pavement layer; in the epoxy asphalt mixture paving process, the mixture inside the hopper adheres to the sprocket box in the middle position of the spiral spreader, and due to the push of the spiral spreader, part of the mixture is pushed to the guard plates on both sides of the hopper, making these parts prone to "dead material". The loose mixture in the "dead material" area is easily peeled off under the action of traffic load, affecting the integrity, structural stability and flatness of the pavement layer. Therefore, it is necessary to provide a new double-layer ESMA asphalt mixture construction device and method thereof to solve the above technical problems. Summary of the Invention

[0005] The technical problem solved by the present invention is to provide a construction device and method for a double-layer ESMA asphalt mixture for increasing the flatness of a pavement layer.

[0006] In order to solve the above technical problems, the double-layer ESMA asphalt mixture construction device provided by the present invention includes: a support frame; a feeding mechanism for conveying epoxy asphalt mixture is installed on the side wall of the support frame, and an adjustment mechanism for adjusting the angle and height of the leveling mechanism is installed on the side wall of the support frame; a cleaning mechanism for avoiding dead material inside the feeding mechanism is installed on the side wall of the leveling mechanism, and a leveling mechanism for adjusting the flatness of the bottom surface of the leveling mechanism is installed on the side wall of the adjustment mechanism; the cleaning mechanism includes a support column, and a plurality of the support columns are tilted and fixed on the side wall of the leveling mechanism, one end of the support column is rotatably connected to the rotating shaft, and the inside of the support column is rotatably connected to the fixing rod. A scraper with an arc-shaped side wall is installed at one end of the fixed rod, and the scraper is slidably connected to the side wall of the fixed shaft, and the height of the scraper gradually decreases along the two ends of the fixed shaft toward the center of the fixed shaft; the side wall of the rotating shaft is fixedly connected to the fixed rod, the connecting rod and the rotating rod, and the side wall of the connecting rod is threadedly connected to the screw, one end of the screw is fixedly connected to a rubber sleeve, the rubber sleeve is slidably connected to the side wall of the fixed disk, and the fixed disk is fixed to the side wall of the unloading mechanism; the fixed ball at one end of the rotating rod is slidably connected to the side wall of the first partition, and a rubber pad with a trapezoidal side wall is installed between the first partition and the sprocket box, and the rubber pad is fixed to the center of the side wall of the first partition.

[0007] Preferably, the unloading mechanism includes a unloading funnel, the unloading funnel is installed on the side wall of the support frame, and a plurality of guide plates with trapezoidal side walls are installed inside the unloading funnel, and the inclination angle of the guide plates gradually increases from the center of the unloading funnel toward the edge of the unloading funnel; the bearing sleeve is symmetrically installed at the bottom end of the unloading funnel, and the bearing for fixing the fixed shaft is installed inside the bearing sleeve; two sections of spiral push plates are installed on the side wall of the fixed shaft, and the installation directions of the spiral push plates located at both ends of the fixed shaft are opposite.

[0008] Preferably, the side wall of the bearing sleeve is fixedly connected to the fixing sleeve, the side wall of the fixing sleeve is fixedly connected to the fixing plate, and the thickness of the bottom surface of the fixing plate gradually increases from top to bottom; the interior of the fixing plate is rollingly connected to the balls, and the balls contact the surface of the fixed shaft.

[0009] Preferably, a motor and a sprocket box are mounted on the surface of the support frame, the output shaft of the motor and the side wall of the fixed shaft are fixedly connected to the sprocket, a chain is engaged between the two sprockets, and the fixed shaft, the sprocket at the center of the fixed shaft, and the chain are rotatably connected to the inside of the sprocket box.

[0010] Preferably, the sprocket box is installed obliquely inside the discharge funnel, and the vertical distance between the sprocket box and the first partition gradually decreases from top to bottom; a second partition with an arc-shaped side wall is installed inside the discharge funnel, and the second partition contacts the side wall of the first partition; the side wall of the first partition is arc-shaped, the width of the first partition is greater than the width of the sprocket box, and the thickness of the first partition gradually decreases from the middle to the two ends.

[0011] Preferably, the leveling mechanism includes an ironing plate, and the guard plate is fixedly connected at the edge of the top surface of the ironing plate; a leveling beam is installed at one end of the ironing plate, and a baffle is installed at an angle on the side wall of the leveling beam, and both ends of the baffle and the guard plate are fixedly installed with support columns at an angle; a plurality of connecting frames are installed at an angle between the guard plate and the baffle, and the inclination angle of the connecting frame gradually increases along the center of the guard plate toward the two ends of the guard plate.

[0012] Preferably, the adjustment mechanism includes a support splint, one end of the support frame is rotatably connected to the support splint, and a first hydraulic rod is rotatably connected between the support splint and the support frame; the bottom end of the support splint is fixedly connected to a fixed plate, the interior of the fixed plate is slidably connected to a plurality of guide rods, the bottom end of the guide rod is fixedly connected to the ironing plate, and a plurality of second hydraulic rods are installed between the ironing plate and the fixed plate.

[0013] Preferably, the leveling mechanism includes a support beam, two support beams are respectively fixed at both ends of the ironing plate, the I-shaped support beam is connected to the side wall of the guard plate, and the support beam is rotatably connected to the guide rod by a third hydraulic rod.

[0014] A construction method for a double-layer ESMA asphalt mixture specifically comprises the following steps: Step 1: Fix the support frame on the double-layer paver and use the device to complete double-layer epoxy asphalt paving; before paving, keep the preheat temperature of the screed plate at about 120°C, and use the leveling mechanism to straighten the screed plate; according to the thickness of the pavement layer, adjust the height and pitch angle of the two sets of the leveling mechanisms. At this time, the required pitch angle of the leveling mechanism is 1-3° less than the actual pitch angle of the leveling mechanism, and the actual height of the leveling mechanism is 2-3 cm greater than the required height; Step 2: Rotate the rotating shaft so that the scraper contacts and squeezes the side wall of the fixed shaft, the fixed ball rotates downward to squeeze the side wall of the first partition, and rotate the screw so that the rubber pad squeezes the inside of the fixed plate to fix the rotating shaft; open the adjustment mechanism and fine-tune the leveling mechanism to a suitable angle and height; at this time, the leveling mechanism moves the rotating shaft downward to increase the squeezing force between the scraper and the fixed shaft, the fixed ball and the first partition, and the rubber sleeve and the fixed plate; Step 3: The double-layer paver runs on the ground to perform double-layer paving; the epoxy asphalt mixture is evenly spread on the ground through the feeding mechanism, and the leveling mechanism compacts and vibrates the mixture to complete the double-layer paving; Step 4: When the mixture moves inside the discharge funnel, the first baffle and the second baffle prevent the mixture from adhering to the surface of the sprocket box; during the rotation of the fixed shaft, the scraper scrapes away the excess mixture on the surface of the fixed shaft caused by the push of the spiral push plate; and at this time, the scraper, the first baffle, the second baffle and the fixed ball drive slight vibration to facilitate the falling of the mixture and avoid the accumulation of a large amount of mixture to form dead material; during the vibration of the ironing plate, the two ends of the fixed shaft push out the connecting rod, so that the connecting rod always provides an outward expansion pulling force on the edge of the ironing plate, thereby increasing the stability of the ironing plate during use, avoiding the surface bending of the ironing plate under high temperature conditions, and preventing the vibration amplitude of the two ends of the ironing plate from being too large to affect the flatness of the pavement layer.

[0015] Compared with the related art, the double-layer ESMA asphalt mixture construction device and method provided by the present invention have the following beneficial effects: The present invention provides a construction device and method for a double-layer ESMA asphalt mixture. After the screed is straightened, the rotating shaft is rotated to make the scraper contact and squeeze the side wall of the fixed shaft, the fixed ball rotates downward to squeeze the side wall of the first partition, and the screw is rotated to make the rubber pad squeeze the inside of the fixed disk to fix the rotating shaft; the adjustment mechanism is opened to fine-tune the leveling mechanism to reach a suitable angle and height; at this time, the leveling mechanism drives the support column, the rotating shaft, the fixed rod, the connecting rod and the rotating rod to move downward as a whole, and the fixed rod moves downward to compress the scraper, thereby increasing the height. The squeezing force between the scraper and the fixed shaft is increased, and the downward movement of the rotating rod increases the squeezing force between the fixed ball and the first partition. The connecting rod drives the screw and the rubber pad to move downward. Since the thickness of the bottom surface of the fixed plate gradually increases from top to bottom, as the elastic rubber pad moves downward, the deformation degree of the funnel-shaped rubber pad increases, and the squeezing force between the two gradually increases, thereby increasing the stability of the connecting rod and causing the connecting rod to pull the rotating shaft outward. When the mixed material moves inside the discharge funnel, the mixed material in the center of the discharge funnel is blocked by the first partition and the second partition. , to prevent the mixture from adhering to the surface of the sprocket box; and because the vibration of the rotating shaft is transmitted to the first partition plate and the second partition plate through the rotating rod and the fixed ball, the surfaces of the first partition plate and the second partition plate vibrate slightly, which facilitates the mixture to fall from the surfaces of the first partition plate and the second partition plate; the rubber pad is fixed at the center of the first partition plate, and the thickness of the first partition plate gradually decreases from the middle to the two ends, reducing the constraint at the edge of the first partition plate and increasing the vibration amplitude at the edge of the first partition plate, thereby accelerating the rate at which the mixture falls from the surface of the first partition plate, avoiding the accumulation of a large amount of mixture. In the process of rotation of the fixed shaft, the spiral push plate moves the mixture along the fixed shaft toward the direction of the bearing sleeve, and the scraper scrapes away the excess mixture on the surface of the fixed shaft, and the height of the scraper gradually decreases along the two ends of the fixed shaft toward the center of the fixed shaft, so that the scraper is tilted and located on the surface of the fixed shaft, thereby increasing the cleaning ability of the scraper, and one end of the scraper is tilted to facilitate the mixture cleaned by the scraper to fall downward, and the support column drives the scraper to vibrate continuously, thereby effectively cleaning the mixture on the scraper surface and avoiding the accumulation of mixture to form dead materials;During the screed plate's vibration, the fixed shaft supports the fixed plate through the ball bearings and provides outward support for the screws securing the fixed plate, causing the connecting rods to pull downward on the rotating shaft, support columns, guard plates, and screed plate, thereby applying an outward pulling force to the edges of the screed plate. This increases the screed plate's stability during use, prevents surface bending at high temperatures, and prevents excessive vibration at both ends of the screed plate from affecting the smoothness of the pavement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic structural diagram of a preferred embodiment of a double-layer ESMA asphalt mixture construction device and method provided by the present invention; Figure 2 A top view of the structure of the double-layer ESMA asphalt mixture construction device provided by the present invention; Figure 3 for Figure 2 The top view of the internal structure of the feeding funnel is shown; Figure 4 for Figure 3 An enlarged schematic diagram of the structure at point A is shown; Figure 5 for Figure 3 An enlarged schematic diagram of the structure at point B is shown; Figure 6 for Figure 1 Schematic diagram of the internal structure of the feeding funnel shown; Figure 7 for Figure 4 Schematic diagram of the fixed shaft and scraper structure shown; Figure 8 for Figure 1 The schematic diagram of the screed structure shown; Figure 9 This is a schematic diagram of the ironing plate angle adjustment provided by the present invention.

[0017] Numbers in the figure: 1, support frame, 2, unloading mechanism, 21, unloading funnel, 22, sprocket box, 23, screw push plate, 24, motor, 25, guide plate, 26, fixed shaft, 27, bearing sleeve, 28, sprocket, 29, chain, 210, fixed sleeve, 3, adjustment mechanism, 31, support splint, 32, first hydraulic rod, 33, fixed plate, 34, second hydraulic rod, 35, guide rod, 4, leveling mechanism, 41, ironing board, 42, leveling beam, 4 3. Baffle, 44. Connecting frame, 45. Guard plate, 46. Vibrating motor, 5. Cleaning mechanism, 51. Support column, 52. Fixed plate, 53. Connecting rod, 54. Rotating shaft, 55. Fixed rod, 56. Scraper, 57. Screw, 58. Rotating rod, 59. Fixed ball, 510. First partition, 511. Rubber pad, 512. Second partition, 513. Rubber sleeve, 514. Ball, 6. Leveling mechanism, 61. Third hydraulic rod, 62. Support beam. DETAILED DESCRIPTION

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] See also Figures 1 to 9 , Figure 1 A schematic structural diagram of a preferred embodiment of a double-layer ESMA asphalt mixture construction device and method provided by the present invention; Figure 2 A top view of the structure of the double-layer ESMA asphalt mixture construction device provided by the present invention; Figure 3 for Figure 2 The top view of the internal structure of the feeding funnel is shown; Figure 4 for Figure 3 An enlarged schematic diagram of the structure at point A is shown; Figure 5 for Figure 3 An enlarged schematic diagram of the structure at point B is shown; Figure 6 for Figure 1 Schematic diagram of the internal structure of the feeding funnel shown; Figure 7 for Figure 4 Schematic diagram of the fixed shaft and scraper structure shown; Figure 8 for Figure 1 The schematic diagram of the screed structure shown; Figure 9Schematic diagram of the screed angle adjustment provided by the present invention. The construction device for double-layer ESMA asphalt mixture includes: a support frame 1; a side wall of the support frame 1 is installed with a feeding mechanism 2 for conveying epoxy asphalt mixture, the feeding mechanism 2 includes a feeding hopper 21, the side wall of the support frame 1 is installed with the feeding hopper 21, the interior of the feeding hopper 21 is installed with a plurality of guide plates 25 with trapezoidal side walls, the bottom end of the feeding hopper 21 is symmetrically installed with a bearing sleeve 27, the interior of the bearing sleeve 27 is installed with a bearing for fixing the fixed shaft 26; the side wall of the fixed shaft 26 is installed with two sections of spiral push plates 23, and the installation directions of the spiral push plates 23 at both ends of the fixed shaft 26 are opposite; when the epoxy asphalt mixture flows downward inside the feeding hopper 21, it is in contact with the guide plates 25. 5 contact, the mixture flows between the two guide plates 25, the mixture is diverted, and the uniformity of the discharge is increased, and the inclination angle of the guide plate 25 gradually increases along the center of the discharge funnel 21 toward the edge of the discharge funnel 21, in order to facilitate the movement of the mixture toward the edge of the discharge funnel 21, so that the mixture falls evenly, and avoids a large amount of mixture from moving in the center of the discharge funnel 21, effectively diverts the mixture, and reduces the probability of the mixture contacting the sprocket box 28; when the epoxy asphalt mixture falls to the ground, the fixed shaft 26 drives the spiral push plate 23 to rotate counterclockwise, and the rotation of the spiral push plate 23 pushes the mixture toward the edge, so that the mixture is evenly distributed on the ground.

[0020] The support frame 1 is surface-mounted with a motor 24 and a sprocket box 22. The output shaft of the motor 24 and the side wall of the fixed shaft 26 are fixedly connected to a sprocket 28. A chain 29 is engaged between the two sprockets 28. The fixed shaft 26, the sprocket 28 at the center of the fixed shaft 26, and the chain 29 are rotatably connected to the interior of the sprocket box 22. In order to facilitate the motor 24 to drive the fixed shaft 26 to rotate through the sprocket 28 and the chain 29, the fixed shaft 26 drives the spiral push plate 23 to rotate to spread the epoxy asphalt mixture flat on the ground.

[0021] The side wall of the support frame 1 is installed with an adjustment mechanism 3 for adjusting the angle and height of the leveling mechanism 4; the adjustment mechanism 3 includes a support splint 31, one end of the support frame 1 is rotatably connected to the support splint 31, and a first hydraulic rod 32 is rotatably connected between the support splint 31 and the support frame 1; the bottom end of the support splint 31 is fixedly connected to the fixing plate 33, and the interior of the fixing plate 33 is slidably connected to a plurality of guide rods 35, and the bottom end of the guide rod 35 is fixedly connected to the ironing plate 41, and a plurality of second hydraulic rods 34 are installed between the ironing plate 41 and the fixing plate 33; in order to facilitate the extension and retraction of the first hydraulic rod 32, the support splint 31, the fixing plate 33 and the leveling mechanism 4 are driven to rotate to adjust the pitch angle of the leveling mechanism 4; the extension and retraction of the second hydraulic rod 32 drives the leveling mechanism 4 to slide up and down, changes the height of the leveling mechanism 4, and the leveling mechanism drives the guide rod 35 to move linearly inside the fixing plate 33, and the guide rod 35 increases the stability of the up and down movement of the leveling mechanism 4.

[0022] A leveling mechanism 6 for adjusting the flatness of the bottom surface of the leveling mechanism 4 is installed on the side wall of the adjustment mechanism 3; the leveling mechanism 6 includes a support beam 62, two of which are respectively fixed at both ends of the ironing plate 41, and the I-shaped support beam 62 is connected to the side wall of the guard plate 45. The support beam 62 is rotatably connected to the guide rod 35 through a third hydraulic rod 61; a heating coil is installed inside the ironing plate 41 to heat the bottom surface of the ironing plate 41 so that the temperature of the ironing plate 41 is about 120°C; at this time, the bottom surface of the ironing plate 41 bends and arches due to temperature changes, and the third hydraulic rod 61 is opened. The third hydraulic rod 61 extends and pushes the ironing plate 41 outward, thereby flattening the bottom surface of the ironing plate 41, making it easier for the ironing plate 41 to vibrate and preliminarily compact the surface of the mixture.

[0023] The leveling mechanism 4 includes a screed 41, a guard plate 45 is fixedly connected to the top edge of the screed 41; a leveling beam 42 is installed at one end of the screed 41, and a baffle 43 is installed obliquely on the side wall of the leveling beam 42, and the baffle 43 protects the periphery of the screed 41 to prevent asphalt mixture from falling on the surface of the screed 41; support columns 51 are fixedly installed obliquely at both ends of the baffle 43 and the guard plate 45; a plurality of connecting frames 53 are installed obliquely between the guard plate 45 and the baffle 43, and the connecting frames 53 The inclination angle gradually increases along the center of the guard plate 45 toward the two ends of the guard plate 45; when leveling the epoxy asphalt mixture, the vibration motor 46 drives the ironing plate 41, the leveling beam 42 and the baffle 43 to move. As the double-layer paver moves, the baffle 43 and the leveling beam 42 arranged at an angle on the side wall continuously squeeze the mixture downward to compact the mixture. Then, the continuously vibrating and high-temperature ironing plate 41 vibrates on the surface of the mixture and flattens the surface of the mixture, making the mixture compacted and the surface flat.

[0024] The side wall of the leveling mechanism 4 is installed with a cleaning mechanism 5 to prevent dead material from being generated inside the unloading mechanism 2. The cleaning mechanism 5 includes a support column 51, and multiple support columns 51 are fixed obliquely on the side wall of the leveling mechanism 4. One end of the support column 51 is rotatably connected to the rotating shaft 54. The interior of the support column 51 is rotatably connected to the fixed rod 55. One end of the fixed rod 55 is installed with a scraper 56 with an arc-shaped side wall, and the scraper 56 is slidably connected to the side wall of the fixed shaft 26. The height of the scraper 56 gradually decreases along the two ends of the fixed shaft 26 toward the center of the fixed shaft 26; the side wall of the rotating shaft 54 is fixedly connected to the fixed rod 55, the connecting rod 53 and the rotating rod 58. The side wall is threadedly connected to the screw rod 57, one end of the screw rod 57 is fixedly connected to the rubber sleeve 513, the rubber sleeve 513 is slidably connected to the side wall of the fixed plate 52, and the fixed plate 52 is fixed to the side wall of the unloading mechanism 2; the fixed ball 59 at one end of the rotating rod 58 is slidably connected to the side wall of the first partition 510, and a rubber pad 511 with a trapezoidal side wall is installed between the first partition 510 and the sprocket box 22, and the rubber pad 511 is fixed to the center of the side wall of the first partition 510; after using the leveling mechanism 6 to level the high-temperature ironing plate 41, the rotating shaft 54 is rotated, and the rotating shaft 54 drives the fixed rod 55, the connecting rod 53 and the rotating rod 58 to rotate, and the fixed The rod 55 drives the scraper 56 to press against the side wall of the fixed shaft 26, and the rotating rod 58 drives the fixed ball 59 to rotate downward to squeeze the side wall of the first partition 510, so that the first partition 510 moves outward and stretches the rubber pad 511; and because the surface area of the fixed disk 52 is large, the screw 57 at one end of the connecting rod 53 is aligned with the inside of the fixed disk 52, and the screw 57 is rotated. The screw 57 drives the rubber pad 511 to rotate and squeeze the inner bottom surface of the fixed disk 52, and the screw 57 and the rotating shaft 54 are fixed by the extrusion force of the two to prevent the rotating shaft 54 from rotating inside the support column 51; when the adjustment mechanism 3 fine-tunes the leveling machine downward When the angle and height of the structure 4 are adjusted, the leveling mechanism 4 drives the support column 51, the rotating shaft 54, the fixing rod 55, the connecting rod 53 and the rotating rod 58 to move downward as a whole. The fixing rod 55 moves downward to compress the scraper 57 downward, thereby increasing the extrusion force between the scraper 57 and the fixed shaft 26. The rotating rod 58 moves downward to increase the extrusion force between the fixed ball 59 and the first partition 510. The connecting rod 53 drives the screw 57 and the rubber pad 511 to move downward. Since the thickness of the bottom surface of the fixing plate 52 gradually increases from top to bottom, as the rubber pad 511 moves downward, the extrusion force between the two gradually increases, thereby increasing the stability of the connecting rod 53.During the rotation of the fixed shaft 26, the spiral push plate 23 moves the mixed material along the fixed shaft 26 toward the bearing housing 27. The scraper 57 scrapes away excess mixed material from the surface of the fixed shaft 26. The height of the scraper 56 gradually decreases from both ends of the fixed shaft 26 toward the center of the fixed shaft 26, so that the scraper 56 is tilted and positioned on the surface of the fixed shaft 26, thereby increasing the cleaning capacity of the scraper 56. One end of the scraper 56 is tilted to facilitate the downward drop of the mixed material cleaned by the scraper 56. The support column 51 drives the scraper 56 to continuously vibrate, thereby effectively cleaning the mixed material on the surface of the scraper 56 and preventing the accumulation of mixed material to form dead material.

[0025] The sprocket box 22 is installed obliquely inside the discharge funnel 21, and the vertical distance between the sprocket box 22 and the first partition 510 gradually decreases from top to bottom, in order to increase the extrusion force between the fixed ball 59 and the first partition 510 when the fixed ball 59 rotates downward, and push the first partition 510 to contact the side wall of the second partition 512; the second partition 512 with an arc-shaped side wall is installed inside the discharge funnel 21, and the second partition 512 contacts the side wall of the first partition 510; the side wall of the first partition 510 is arc-shaped, and the width of the first partition 510 is greater than the width of the sprocket box 22; when the mixed material moves inside the discharge funnel 21, the mixed material in the center of the discharge funnel 21 is squeezed by the first partition 510 and The second partition 511 blocks and prevents the mixture from adhering to the surface of the sprocket box 22; and since the vibration of the rotating shaft 59 is transmitted to the first partition 510 and the second partition 511 through the rotating rod 58 and the fixed ball 59, the surfaces of the first partition 510 and the second partition 511 vibrate slightly, which facilitates the mixture to fall from the surfaces of the first partition 510 and the second partition 511; the rubber pad 511 is fixed at the center of the first partition 510, and the thickness of the first partition 510 gradually decreases from the middle to the two ends, reducing the constraint at the edge of the first partition 510 and increasing the vibration amplitude at the edge of the first partition 510, thereby accelerating the rate at which the mixture falls from the surface of the first partition 510, avoiding the accumulation of a large amount of mixture to form dead material.

[0026] The side wall of the bearing sleeve 27 is fixedly connected to the fixing sleeve 210 , and the side wall of the fixing sleeve 210 is fixedly connected to the fixing plate 52 ; the interior of the fixing plate 52 is rollingly connected to the balls 514 , and the balls 514 abut against the surface of the fixing shaft 26 . The ball bearing 514 contacts the center of the surface of the fixed shaft 26. The fixed shaft 26 provides support to the fixed plate 52 through the ball bearing 514, and provides support for the screw 57 fixed inside the fixed plate 52, so that the connecting rod 53 pulls the rotating shaft 54, the support column 51, the guard plate 45 and the ironing plate 41 downward, so that the edge of the ironing plate 41 is subjected to an outward expansion force, thereby increasing the stability of the ironing plate 41 during use, avoiding the surface bending of the ironing plate 41 under high temperature conditions, and preventing the vibration amplitude of the two ends of the ironing plate 41 from being too large and affecting the flatness of the pavement layer; and the vibration of the connecting rod 53 is transmitted to the two ends of the fixed shaft 46 through the fixed plate 52 and the ball bearing 514, so that the surface of the fixed shaft 46 continuously vibrates, making it easier for the fixed shaft 46 to flatten the mixture and reducing the probability of the mixture adhering to the surface of the fixed shaft 46.

[0027] A construction method for a double-layer ESMA asphalt mixture specifically comprises the following steps: Step 1: Fix the support frame 1 on the double-layer paver and use this device to complete double-layer epoxy asphalt paving; before paving, connect the device to the power supply, turn on the heating coil inside the ironing plate 41, and heat the bottom surface of the ironing plate 41 to make the temperature of the ironing plate 41 about 120°C; at this time, due to the temperature change, the bottom surface of the ironing plate 41 bends and arches, and the third hydraulic rod 61 is turned on. The third hydraulic rod 61 extends and pushes the ironing plate 41 outward to flatten the bottom surface of the ironing plate 41; according to the thickness of the pavement layer, adjust the height and pitch angle of the two sets of the leveling mechanisms 4, and the first hydraulic rod 32 extends and retracts to drive the support splint 31, the fixing plate 33 and the leveling mechanism 4 to rotate, and adjust the pitch angle of the leveling mechanism 4. The required pitch angle of the leveling mechanism 4 is recorded as angle a (as shown in the attached figure). Figure 9 As shown), the angle a is 1 to 3 degrees smaller than the actual pitch angle of the leveling mechanism 4; the second hydraulic rod 32 is extended and retracted, driving the leveling mechanism 4 to slide up and down, changing the height of the leveling mechanism 4, so that the actual height of the leveling mechanism 4 is 2 to 3 centimeters greater than the desired height; The second step is to rotate the rotating shaft 54, which drives the fixing rod 55, the connecting rod 53 and the rotating rod 58 to rotate. The fixing rod 55 drives the scraper 56 to press against the side wall of the fixing shaft 26, and the rotating rod 58 drives the fixing ball 59 to rotate downward to press the side wall of the first partition 510, so that the first partition 510 moves outward and stretches the rubber pad 511; and because the surface area of the fixing plate 52 is large, the screw 57 at one end of the connecting rod 53 is aligned with the inside of the fixing plate 52, and the screw 57 is rotated. The screw 57 drives the rubber pad 511 to rotate and squeeze the inner bottom surface of the fixing plate 52, and the screw 57 and the rotating shaft 54 are fixed by the extrusion force of the two, so that the rotating shaft 54 is prevented from rotating inside the support column 51, and the scraper 56 and the fixing ball 59 are fixed; open the adjusting mechanism 3, so that the adjusting mechanism 3 drives the leveling mechanism 4 The adjusting mechanism 3 drives the leveling mechanism 4 to move downward to a suitable height. At this time, the leveling mechanism 4 drives the supporting column 51, the rotating shaft 54, the fixing rod 55, the connecting rod 53 and the rotating rod 58 to move downward as a whole. The fixing rod 55 moves downward to compress the scraper 57, thereby increasing the squeezing force between the scraper 57 and the fixed shaft 26. The rotating rod 58 moves downward to increase the squeezing force between the fixed ball 59 and the first partition 510. The connecting rod 53 drives the screw 57 and the rubber pad 511 to move downward. Since the thickness of the bottom surface of the fixing plate 52 gradually increases from top to bottom, as the elastic rubber pad 511 moves downward, the deformation degree of the funnel-shaped rubber pad 511 increases, and the squeezing force between the two gradually increases, thereby increasing the stability of the connecting rod 53 and causing the connecting rod 53 to pull the rotating shaft 54 outward. Step 3: The motor 24 and the vibration motor 46 are operated to put the epoxy asphalt mixture into the interior of the discharge funnel 21 accordingly, and the double-layer paver runs on the ground at the same time; the epoxy asphalt mixture contacts the guide plate 25 when flowing downward in the discharge funnel 21, and the mixture flows between the two guide plates 25, which diverts the mixture and increases the uniformity of discharge. The inclination angle of the guide plate 25 gradually increases from the center of the discharge funnel 21 toward the edge of the discharge funnel 21, in order to facilitate the movement of the mixture toward the edge of the discharge funnel 21, so that the mixture falls evenly, and avoids a large amount of mixture falling in the discharge funnel. The material hopper 21 moves in the center, effectively diverting the mixture and reducing the probability of the mixture contacting the sprocket box 28. When the epoxy asphalt mixture falls to the ground, the fixed shaft 26 drives the spiral push plate 23 to rotate counterclockwise. The rotation of the spiral push plate 23 pushes the mixture toward the edge, so that the mixture is evenly distributed on the ground. As the double-layer paver moves, the baffle 43 and the leveling beam 42 arranged on the inclined side wall continuously squeeze the mixture downward to compact the mixture. Then, the continuously vibrating and high-temperature ironing plate 41 vibrates on the surface of the mixture and flattens the surface of the mixture, making the mixture compacted and the surface smooth, completing the double-layer paving. Step 4: When the mixed material moves inside the discharge funnel 21, the mixed material in the center of the discharge funnel 21 is blocked by the first partition 510 and the second partition 511, so as to prevent the mixed material from adhering to the surface of the sprocket box 22; and since the vibration of the rotating shaft 59 is transmitted to the first partition 510 and the second partition 511 through the rotating rod 58 and the fixed ball 59, the surfaces of the first partition 510 and the second partition 511 vibrate slightly, which facilitates the mixed material to fall from the surfaces of the first partition 510 and the second partition 511; the rubber pad 511 is fixed to the center of the first partition 510, The thickness of the first partition 510 gradually decreases from the middle to the two ends, reducing the constraint at the edge of the first partition 510 and increasing the vibration amplitude at the edge of the first partition 510, thereby accelerating the rate at which the mixture falls from the surface of the first partition 510, avoiding the accumulation of a large amount of mixture to form dead material; during the rotation of the fixed shaft 26, the spiral push plate 23 moves the mixture along the fixed shaft 26 toward the direction of the bearing sleeve 27, and the scraper 57 scrapes away the excess mixture on the surface of the fixed shaft 26, and the height of the scraper 56 increases along the two ends of the fixed shaft 26 toward the center of the fixed shaft 26. The scraper 56 is gradually reduced in the direction of rotation, so that the scraper is inclined and located on the surface of the fixed shaft 26, thereby increasing the cleaning ability of the scraper 56, and one end of the scraper 56 is inclined to facilitate the mixed material cleaned by the scraper 56 to fall downward, and the support column 51 drives the scraper 56 to vibrate continuously, thereby effectively cleaning the mixed material on the surface of the scraper 56 and avoiding the accumulation of mixed material to form dead material; during the vibration of the ironing plate 41, the fixed shaft 26 provides support to the fixed plate 52 through the ball 514, and provides an outward supporting force for fixing the screw 57 inside the fixed plate 52, so that the connecting rod 53 pulls the rotating shaft 53 downward. The shaft 54, the support column 51, the guard plate 45 and the ironing plate 41, so that the edge of the ironing plate 41 is subjected to an outward expansion pulling force, thereby increasing the stability of the ironing plate 41 during use, avoiding the surface bending of the ironing plate 41 under high temperature conditions, and preventing the vibration amplitude of the two ends of the ironing plate 41 from being too large and affecting the flatness of the pavement layer; and the vibration of the connecting rod 53 is transmitted to the two ends of the fixed shaft 46 through the fixed plate 52 and the ball 514, so that the surface of the fixed shaft 46 is constantly vibrated, which makes it easier for the fixed shaft 46 to flatten the mixture and reduces the probability of the mixture adhering to the surface of the fixed shaft 46.

[0028] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A construction device for a double-layer ESMA asphalt mixture, characterized in that: include: A support frame (1); a feeding mechanism (2) for conveying epoxy asphalt mixture is installed on the side wall of the support frame (1), and an adjusting mechanism (3) for adjusting the angle and height of a leveling mechanism (4) is installed on the side wall of the support frame (1); a cleaning mechanism (5) for preventing dead material from being generated inside the feeding mechanism (2) is installed on the side wall of the leveling mechanism (4), and a leveling mechanism (6) for adjusting the flatness of the bottom surface of the leveling mechanism (4) is installed on the side wall of the adjusting mechanism (3); The cleaning mechanism (5) includes a support column (51), and a plurality of the support columns (51) are tilted and fixed on the side wall of the leveling mechanism (4). One end of the support column (51) is rotatably connected to the rotating shaft (54), and the interior of the support column (51) is rotatably connected to the fixed rod (55). One end of the fixed rod (55) is installed with a scraper (56) with an arc-shaped side wall, and the scraper (56) is slidably connected to the side wall of the fixed shaft (26). The height of the scraper (56) gradually decreases along the two ends of the fixed shaft (26) toward the center of the fixed shaft (26); the side wall of the rotating shaft (54) is fixedly connected to the fixed rod (55), the connecting rod (55), and the fixing rod (55). A rod (53) and a rotating rod (58), the side wall of the connecting rod (53) is threadedly connected to the screw rod (57), one end of the screw rod (57) is fixedly connected to a rubber sleeve (513), the rubber sleeve (513) is slidably connected to the side wall of the fixed plate (52), and the fixed plate (52) is fixed to the side wall of the unloading mechanism (2); a fixed ball (59) at one end of the rotating rod (58) is slidably connected to the side wall of the first partition (510), a rubber pad (511) with a trapezoidal side wall is installed between the first partition (510) and the sprocket box (22), and the rubber pad (511) is fixed to the center of the side wall of the first partition (510).

2. The construction device for double-layer ESMA asphalt mixture according to claim 1, characterized in that: The unloading mechanism (2) includes a unloading funnel (21), the unloading funnel (21) is installed on the side wall of the support frame (1), and a plurality of guide plates (25) with trapezoidal side walls are installed inside the unloading funnel (21), and the inclination angle of the guide plates (25) gradually increases from the center of the unloading funnel (21) toward the edge of the unloading funnel (21); a bearing sleeve (27) is symmetrically installed at the bottom end of the unloading funnel (21), and a bearing for fixing the fixed shaft (26) is installed inside the bearing sleeve (27); two sections of spiral push plates (23) are installed on the side wall of the fixed shaft (26), and the installation directions of the spiral push plates (23) located at both ends of the fixed shaft (26) are opposite.

3. The construction device of double-layer ESMA asphalt mixture according to claim 2, characterized in that, The side wall of the bearing sleeve (27) is fixedly connected to the fixing sleeve (210), and the side wall of the fixing sleeve (210) is fixedly connected to the fixing plate (52), and the thickness of the bottom surface of the fixing plate (52) gradually increases from top to bottom; the interior of the fixing plate (52) is rollingly connected to the ball bearing (514), and the ball bearing (514) contacts the surface of the fixing shaft (26).

4. The construction device for double-layer ESMA asphalt mixture according to claim 3, characterized in that: The support frame (1) is surface-mounted with a motor (24) and a sprocket box (22); the output shaft of the motor (24) and the side wall of the fixed shaft (26) are fixedly connected to a sprocket (28); a chain (29) is engaged between the two sprockets (28); the fixed shaft (26), the sprocket (28) at the center of the fixed shaft (26), and the chain (29) are rotatably connected to the interior of the sprocket box (22).

5. The construction device for double-layer ESMA asphalt mixture according to claim 4, characterized in that: The sprocket box (22) is installed obliquely inside the discharge funnel (21), and the vertical distance between the sprocket box (22) and the first partition (510) gradually decreases from top to bottom; a second partition (512) with an arc-shaped side wall is installed inside the discharge funnel (21), and the second partition (512) contacts the side wall of the first partition (510); the side wall of the first partition (510) is arc-shaped, the width of the first partition (510) is greater than the width of the sprocket box (22), and the thickness of the first partition (510) gradually decreases from the middle toward both ends.

6. The construction device for double-layer ESMA asphalt mixture according to claim 5, characterized in that: The leveling mechanism (4) comprises an ironing plate (41), a guard plate (45) is fixedly connected to the edge of the top surface of the ironing plate (41); a leveling beam (42) is installed at one end of the ironing plate (41), and a baffle (43) is installed obliquely on the side wall of the leveling beam (42), and support columns (51) are fixedly installed obliquely at both ends of the baffle (43) and the guard plate (45); a plurality of connecting frames (53) are installed obliquely between the guard plate (45) and the baffle (43), and the inclination angle of the connecting frame (53) gradually increases along the center of the guard plate (45) toward the two ends of the guard plate (45).

7. The construction device for double-layer ESMA asphalt mixture according to claim 6, characterized in that: The adjustment mechanism (3) comprises a support clamp (31), one end of the support frame (1) is rotatably connected to the support clamp (31), and a first hydraulic rod (32) is rotatably connected between the support clamp (31) and the support frame (1); the bottom end of the support clamp (31) is fixedly connected to a fixed plate (33), the interior of the fixed plate (33) is slidably connected to a plurality of guide rods (35), the bottom end of the guide rod (35) is fixedly connected to the ironing plate (41), and a plurality of second hydraulic rods (34) are installed between the ironing plate (41) and the fixed plate (33).

8. The construction device for double-layer ESMA asphalt mixture according to claim 7, characterized in that: The leveling mechanism (6) includes a support beam (62), two support beams (62) are respectively fixed to the two ends of the ironing plate (41), the I-shaped support beam (62) is connected to the side wall of the guard plate (45), and the support beam (62) and the guide rod (35) are rotatably connected to a third hydraulic rod (61).

9. The construction device for double-layer ESMA asphalt mixture according to claim 8, characterized in that: A construction method for a double-layer ESMA asphalt mixture is provided, which specifically comprises the following steps: Step 1: Fix the support frame (1) on the double-layer paver and use the device to complete the double-layer epoxy asphalt paving; before paving, keep the preheating temperature of the ironing plate (41) at about 120°C, and use the leveling mechanism (6) to straighten the ironing plate (41); according to the thickness of the pavement layer, adjust the height and pitch angle of the two sets of the leveling mechanisms (4), at this time, the required pitch angle of the leveling mechanism (4) is less than the actual pitch angle of the leveling mechanism (4) by 1 to 3 degrees, and the actual height of the leveling mechanism (4) is greater than the required height by 2 to 3 centimeters; Step 2: rotating the rotating shaft (54) so that the scraper (56) contacts and squeezes the side wall of the fixed shaft (26), the fixed ball (59) rotates downward to squeeze the side wall of the first partition (510), and rotating the screw (57) so that the rubber pad (511) squeezes the inside of the fixed disk (52) to fix the rotating shaft (54); opening the adjusting mechanism (3) and fine-tuning the leveling mechanism (4) to achieve a suitable angle and height; at this time, the leveling mechanism (4) moves the rotating shaft (54) downward to increase the squeezing force between the scraper (57) and the fixed shaft (26), the fixed ball (59) and the first partition (510), and the rubber sleeve (513) and the fixed disk (52); Step 3: The double-layer paver is operated on the ground to perform double-layer paving; the epoxy asphalt mixture is evenly spread on the ground through the feeding mechanism (21), and the leveling mechanism (4) compacts and vibrates the mixture to complete the double-layer paving; Step 4: When the mixed material moves inside the discharge hopper (21), the first baffle (510) and the second baffle (511) prevent the mixed material from adhering to the surface of the sprocket box (22); during the rotation of the fixed shaft (26), the scraper (57) scrapes away the excess mixed material on the surface of the fixed shaft 26 caused by the push of the spiral push plate (23); and at this time, the scraper (57), the first baffle (510), the second baffle (511), and the fixed ball (59) drive a slight vibration. The movement facilitates the falling of the mixed material and avoids the accumulation of a large amount of mixed material to form dead material; during the vibration of the ironing plate (41), the two ends of the fixed shaft (26) push the connecting rod (53) outward, so that the connecting rod (53) always provides an outward expansion pulling force on the edge of the ironing plate (41), thereby increasing the stability of the ironing plate (41) during use, avoiding the surface bending of the ironing plate (41) under high temperature conditions, and preventing the vibration amplitude of the two ends of the ironing plate (41) from being too large to affect the flatness of the pavement layer.

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