Device and method for detecting performance of hot mix plant recycled asphalt

Abstract

The invention provides a plant-mixed hot recycled asphalt performance detection device and method, and relates to the technical field of recycled asphalt performance detection.The plant-mixed hot recycled asphalt performance detection device comprises a feeding assembly, a screening assembly and a transmission assembly, the feeding assembly is connected with the screening assembly and the transmission assembly, and the transmission assembly is connected with the screening assembly; the screening assembly comprises a lower box body, the lower box body is connected with a group of guide rods, the group of guide rods are respectively connected and penetrate through a lower circular plate and a mounting plate, and the mounting plate is connected with a feeding circular pipe; the transmission assembly comprises a mounting vertical plate, the mounting vertical plate is connected with the mounting plate, and the mounting vertical plate is provided with a vertical groove; the feeding assembly comprises an upper T block and a lower T block. In order to overcome the defects in the prior art, the device and the method for detecting the performance of the hot mix plant recycled asphalt are developed, intermittent feeding is realized by utilizing the feeding assembly, approximate graded feeding is realized during feeding, and mineral aggregate screening by the screening assembly is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of regenerated asphalt performance detection technology, and in particular to a device and method for detecting the performance of factory-mixed hot-regenerated asphalt. Background Art

[0002] Regenerated asphalt reverses the aging process of asphalt through physical and chemical processes. Aged asphalt suffers from decreased penetration and ductility due to a reduction in aromatic content and asphaltene aggregation. The regeneration agent, rich in lightweight components, replenishes these lost aromatics. The regeneration mechanism involves the penetration of regeneration agent molecules into the aged asphalt, reducing the carbonyl index, and the enhanced solubility of fatty acid ketones, which redisperses asphaltene aggregates to form a stable colloidal structure.

[0003] Recycled asphalt performance testing includes basic performance testing, mixture performance testing, gradation testing, and temperature testing. Gradation testing is used to screen the aggregate in the asphalt mixture and determine its gradation. Gradation testing uses a shaker to separate aggregates of varying particle sizes, thereby achieving aggregate grading.

[0004] At present, there is still a lack of a detection device to achieve intermittent feeding, avoid mineral accumulation, and facilitate the screening of minerals.

[0005] Therefore, in response to the above problems, a device and method for detecting the performance of factory-mixed hot-regenerated asphalt are proposed to solve the above problems. Summary of the Invention

[0006] In response to the deficiencies in the prior art, the present invention develops a device and method for detecting the performance of factory-mixed hot-regenerated asphalt. The invention utilizes a feeding component to achieve intermittent feeding, and achieves approximate graded feeding during feeding, making it convenient for the screening component to perform mineral screening.

[0007] The technical solution to the technical problem solved by the present invention is as follows: the present invention provides a plant-mixed hot-regenerated asphalt performance detection device and method, comprising: a feeding component, a screening component and a transmission component, the feeding component is connected to the screening component and the transmission component, the transmission component is connected to the screening component to realize the feeding and screening of asphalt mineral material; the feeding component is responsible for transporting the mineral material to the screening component, the screening component screens the mixture, and the transmission component provides power and transmission support to ensure the smooth progress of the entire screening process; the screening component includes a lower box body, the lower box body is connected to a group of guide rods, a group of the guide rods are respectively connected and pass through the lower circular plate and the mounting plate, the mounting plate is connected to the feed circular pipe; the transmission component includes a mounting vertical plate, the mounting vertical plate is connected to the mounting plate, The mounting vertical plate is provided with a vertical groove; the feeding assembly includes an upper T-block and a lower T-block, and the upper T-block and the lower T-block are respectively nested in the vertical groove, the upper T-block is connected to the horizontal plate, the horizontal plate is connected to the symmetrical vertical plate, and the lower T-block is connected to the frame; the groove of the frame is rotatably connected to the feed U-groove, and the feed U-groove is rotatably connected to one end of the symmetrical limit connecting rod, and the other end of the symmetrical limit connecting rod is rotatably connected to the mounting plate, and the feed U-groove realizes the transportation of mineral materials. After the mineral materials are placed in the feed U-groove, when the feed U-groove is tilted, the mineral materials fall along it into the area composed of the frame and the vertical plates. When the feed U-groove is close to horizontal, the mineral materials do not fall, realizing intermittent feeding, avoiding blockage of the area composed of the frame and the vertical plates, and a small amount of mineral materials enters the uppermost screen each time, which is also convenient for screening.

[0008] As an optimization, the lower circular plate is connected to the lower box via a set of springs. Each of the springs is respectively encircled by the corresponding guide rod. The spring connection provides elastic support for the lower circular plate, allowing it to float up and down during the screening process, increasing the flexibility and efficiency of the screening. The circular bearing of the lower circular plate is connected to the power dome, which matches the screen. The mounting plate bearing is connected to the swivel, which matches the screen. The coordination of the power dome and the screen, as well as the covering of the swivel, achieves stable installation and rotation of the screen, ensuring that the mineral material can be effectively screened on the screen. The screen includes two circular rings, one above and one below. The upper large circular ring and the power dome are respectively provided with two semicircular positioning holes. The lower circular ring protrudes outward to form two semicircular protrusions, which match the two semicircular positioning holes. The swivel protrudes downward to form two round rod protrusions, which match the two semicircular positioning holes. The bottom screen is placed in the power dome, and the remaining screens are stacked. The swivel covers the top screen.

[0009] As an optimization, the lower housing is connected to a reduction motor, the output shaft of the reduction motor is connected to the active bevel gear, the lower housing bearing is connected to the lower splined tubular shaft, the lower splined tubular shaft is connected to the power bevel gear, the power bevel gear meshes with the active bevel gear, a lower splined shaft is provided in the lower splined tubular shaft, the lower splined shaft is connected to the runner, the eccentric part of the runner is connected to the ball head rod, the lower housing is connected to the wedge block, the ball head of the ball head rod contacts the inclined surface of the wedge block, and the lower splined shaft passes through the lower circular plate to connect to the power circular cover. The reduction motor in the lower housing is engaged with the bevel gear to transmit power to the lower splined tubular shaft, thereby driving the power circular cover and the screen to rotate. The cooperation between the ball head rod and the wedge block realizes the eccentric transmission of power, so that the screen can reciprocate in the height direction while rotating, thereby enhancing the screening effect and improving the screening efficiency and accuracy.

[0010] As an optimization, the swivel is connected to the gear ring, the mounting plate bearing is connected to the center axis of the gear, the gear meshes with the gear ring, the center axis of the gear is connected to the turntable, the eccentric part of the turntable protrudes outward to form a round block, and the round block is arranged in the slide groove, the mounting vertical plate is connected to symmetrical thin rods, the symmetrical thin rods pass through the slide grooves respectively, the two ends of the slide grooves are respectively rotated to connect the power connecting rods, the symmetrical power connecting rods are respectively rotated to connect the mounting bars, the mounting bars are connected to the lower T block, the mounting vertical plate is rotatably connected to the upper end of the symmetrical upper connecting rod, the lower ends of the symmetrical upper connecting rods are respectively rotatably connected to the upper ends of the middle connecting rods, the centers of the symmetrical middle connecting rods are respectively rotatably connected to the upper T blocks, the lower ends of the symmetrical middle connecting rods are respectively rotatably connected to the upper ends of the lower connecting rods, and the lower ends of the symmetrical lower connecting rods are respectively rotatably connected to the lower T blocks. The meshing of the ring gear and the matching of the round block and chute in the turntable transmit power, allowing the power connecting rod to drive the mounting bar to move vertically. The parallelogram mechanism composed of upper, middle, and lower connecting rods enables the movement of the upper and lower T-blocks, with the lower T-block having a greater range of motion than the upper T-block. The frame moves vertically, and the feed U-chute swings back and forth, achieving intermittent feeding of ore.

[0011] As an optimization, the frame is pivotally connected to two staggered spring rods, each of which is pivotally connected to a mounting rod. The frame is pivotally connected to symmetrical grating plates, each of which is connected to a corresponding grating plate. The two grating plates are staggered, and when horizontal, they block the area formed by the frame and the symmetrical vertical plates. As the ore falls, the ore tilts the grating plates on either side, which in turn swings the mounting rods, which in turn swing and stretch the spring rods. The frame leverages the inertia of the grating plates, mounting rods, and spring rods to facilitate the ore's descent. This allows for initial screening and graded ore drop, improving screening accuracy and efficiency.

[0012] As an optimization, the mounting bar is connected to the rack, the mounting vertical plate bearing is connected to the central axis of the transmission gear, the transmission gear meshes with the rack, the central axis of the transmission gear is connected to the transmission bevel gear, the protruding horizontal plate bearing of the mounting vertical plate is connected to the upper splined pipe shaft, the upper splined pipe shaft is connected to the end bevel gear, the end bevel gear meshes with the transmission bevel gear, an upper splined shaft is arranged in the upper splined pipe shaft, the upper splined shaft bearing is connected to the horizontal plate, and the upper splined shaft is connected to a U-shaped stirring rod. The U-shaped stirring rod is arranged in the area formed by the frame and the symmetrical vertical plates, and the lower part of the upper splined shaft and the surface of the U-shaped stirring rod are coated with rubber. The U-shaped stirring rod can stir in the area formed by the frame and the vertical plates to disperse the mineral material, prevent the mineral material from being blocked or accumulated during the screening process, and improve the uniformity and reliability of the screening.

[0013] As an optimization, the lower circular plate is connected to symmetrical screws that pass through the mounting plate. Locking nuts are provided on either side of the mounting plate, corresponding to each screw, and each lock nut is threadedly connected to the corresponding screw. The locking nuts secure the lower circular plate and mounting plate, ensuring a stable connection and adjustable position. This allows the device to flexibly adjust the distance between the lower circular plate and mounting plate to accommodate different screening needs.

[0014] A method for detecting the performance of a plant-mixed hot-regenerated asphalt testing device comprises the following steps: S1: Take samples at the asphalt mixing plant. When taking samples, it is advisable to use a special container placed under the mixer discharge hopper. Take a sample each time the material is added, and put it into the sample container in sequence. Each time, pour it onto a clean flat plate. Take samples several times in succession, mix them evenly, and use the quartering method to take samples until a sufficient number of samples are obtained. S2: Weigh all mineral samples to an accuracy of 0.1g; S3: drying the ore in an oven at 105°C and cooling to room temperature; S4: placing the ore into the device for screening; S5: Calculate the percentage of ore in each particle size range based on the mass of the ore after screening, and draw the gradation curve of the ore composition.

[0015] As an optimization, the specific steps of S4 are: S41: According to the screening requirements, the screen of appropriate quantity and model is selected, and the screen is stacked on the power dome, and the rotating ring is placed on the uppermost screen; S42: Turn on the reduction motor; S43: continuously adding mineral materials into the feed U trough; S44: The feed U-trough swings back and forth to transport the ore to the area formed by the frame and the vertical plates. Under the action of the gravity of the ore, the two grid plates swing and tilt from a horizontal state, and small ore falls from the gap between the grid plates. Large ore falls after the two grid plates separate, achieving a state of approximately step-by-step falling. S45: The screen rotates and reciprocates in the height direction to achieve screening of the mineral material.

[0016] The effects provided in the summary of the invention are only the effects of the embodiments, rather than all the effects of the invention. The above technical solution has the following advantages or beneficial effects: 1. This device achieves intermittent feeding by using a feeding U-trough and a grid plate. When the frame moves downward, the inclination angle of the feeding U-trough increases, allowing the ore to move downward and enter the area formed by the frame and the vertical plate. When the grid plate is rotatably connected to the frame, the gravity of the ore and the inertia of the ore following the movement of the frame, the vertical plate and the grid plate cause the grid plate to passively swing and tilt from a horizontal state. Small ore falls through the gap between the grid plates, and large ore falls after the two grid plates separate. When the grid plate is rotatably connected to the vertical plate, due to the parallelogram mechanism composed of upper, middle and lower connecting rods, the distance the frame moves downward is greater than the distance between one end of the vertical plate, causing the spring rod to drive the mounting rod to swing, and the mounting rod drives the grid plate to actively swing, causing it to change from a horizontal state at the upper end of the stroke to a vertical state at the lower end of the stroke. Small ore falls through the gap between the grid plates, and large ore falls when the grid plates separate, facilitating the falling of the ore. This achieves an intermittent feeding state that is approximately step-by-step.

[0017] 2. This device uses bevel gear transmission and the combination of a ball rod and a wedge block to enable the screen to reciprocate in the height direction while rotating, thereby enhancing the screening effect and improving screening efficiency and accuracy. The rotation of the swivel, the meshing of the ring gear, and the combination of the round block placed in the turntable and the chute achieve power transmission, allowing the power connecting rod to drive the mounting bar to move in the height direction. The parallelogram mechanism composed of upper, middle, and lower connecting rods is used to achieve the movement of the upper and lower T-blocks, making the movement range of the lower T-block greater than that of the upper T-block. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0019] Figure 1 Schematic diagram of the three-dimensional structure of the present invention Figure 1 .

[0020] Figure 2 Schematic diagram of the three-dimensional structure of the present invention Figure 2 .

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the feeding assembly and the transmission assembly of the present invention.

[0022] Figure 4 Schematic diagram of the local three-dimensional structure of the feeding component of the present invention Figure 1 .

[0023] Figure 5 Schematic diagram of the local three-dimensional structure of the feeding component of the present invention Figure 2 .

[0024] Figure 6 Schematic diagram of the local three-dimensional structure of the feeding component of the present invention Figure 3 .

[0025] Figure 7 It is a partially cutaway schematic diagram of the three-dimensional structure of the present invention.

[0026] Figure 8 It is a schematic diagram of the local three-dimensional structure of the present invention.

[0027] Figure 9 It is a partial exploded view of the screening assembly of the present invention.

[0028] Figure 10 It is a schematic diagram of the three-dimensional structure of the screen of the present invention.

[0029] In the picture: 1. Feeding assembly, 11. Feed U-trough, 12. Limit connecting rod, 13. End bevel gear, 14. Transmission bevel gear, 15. Upper spline shaft, 16. Lower T-block, 17. Frame, 18. Grid plate, 19. Mounting rod, 110. Spring rod, 111. U-shaped stirring rod, 112. Vertical plate, 113. Horizontal plate, 114. Upper T-block; 2. Screening assembly, 21. Feed tube, 22. Mounting plate, 23. Guide rod, 24. Screw, 25. Lock nut, 26. Screen, 27. Lower circular plate, 28. Spring, 29. Lower housing, 210. Reducer motor, 211. Active bevel gear, 212. Wedge block, 213. Ball head rod, 214. Lower spline shaft, 215. Power bevel gear, 216. Lower spline shaft, 217. Swivel, 218. Power dome; 3. Transmission assembly, 31. Gear, 32. Ring gear, 33. Upper connecting rod, 34. Middle connecting rod, 35. Mounting vertical plate, 36. Vertical groove, 37. Thin rod, 38. Slide groove, 39. Turntable, 310. Power connecting rod, 311. Mounting bar, 312. Transmission gear, 313. Lower connecting rod, 314. Rack, 315. Upper splined tube shaft. DETAILED DESCRIPTION

[0030] To clearly illustrate the technical features of this solution, the present invention is described in detail below through specific embodiments and in conjunction with the accompanying drawings. The following disclosure provides numerous different embodiments or examples for implementing various configurations of the present invention. To simplify the disclosure of the present invention, the following description focuses on components and configurations of specific examples. Furthermore, reference numbers and / or letters may be repeated throughout the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself indicate a relationship between the various embodiments and / or configurations discussed. It should be noted that the components illustrated in the drawings are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and processes are omitted to avoid unnecessarily limiting the present invention. Terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicate positions or locations based on the positions or locations shown in the drawings. These terms are used solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and are therefore not to be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0031] like Figures 1 to 10As shown, embodiment 1: a plant-mixed hot-regenerated asphalt performance detection device and method, including: a feeding component 1, a screening component 2 and a transmission component 3, the feeding component 1 is connected to the screening component 2 and the transmission component 3, the transmission component 3 is connected to the screening component 2, to realize the feeding and screening of asphalt mineral material; the feeding component 1 is responsible for transporting the mineral material to the screening component 2, the screening component 2 screens the mixture, and the transmission component 3 provides power and transmission support to ensure the smooth progress of the entire screening process; the screening component 2 includes a lower box body 29, the lower box body 29 is connected to a group of guide rods 23, a group of the guide rods 23 are respectively connected and pass through the lower circular plate 27 and the mounting plate 22, the mounting plate 22 is connected to the feed circular pipe 21; the transmission component 3 includes a mounting vertical plate 35, the mounting vertical plate 35 is connected to the mounting plate 22, and the mounting vertical plate 35 is provided with a vertical slot 36; the feeding component Component 1 includes an upper T block 114 and a lower T block 16, the upper T block 114 and the lower T block 16 are respectively nested in the vertical groove 36, the upper T block 114 is connected to the horizontal plate 113, the horizontal plate 113 is connected to the symmetrical vertical plate 112, and the lower T block 16 is connected to the frame 17; the groove of the frame 17 is rotatably connected to the feed U groove 11, and the feed U groove 11 is rotatably connected to one end of the symmetrical limit link 12, and the symmetrical limit link The other end of the rod 12 is respectively rotated to connect the mounting plate 22, and the feed U trough 11 realizes the transportation of the ore. After the ore is placed in the feed U trough 11, when the feed U trough 11 is tilted, the ore falls along it into the area composed of the frame 17 and the vertical plate 112. When the feed U trough 11 is close to horizontal, the ore does not fall, realizing intermittent feeding, avoiding blockage of the area composed of the frame 17 and the vertical plate 112, and a small amount of ore enters the uppermost screen 26 each time, which is also convenient for screening.

[0032] like Figure 1 、 7As shown in Figure 10, the lower circular plate 27 is connected to the lower box body 29 through a group of springs 28, and each of the springs 28 is respectively looped around the corresponding guide rod 23. The spring connection provides elastic support for the lower circular plate 27, so that it can float up and down during the screening process, thereby increasing the flexibility and efficiency of screening; the circular bearing of the lower circular plate 27 is connected to the power circular cover 218, and the power circular cover 218 matches the screen 26. The bearing of the mounting plate 22 is connected to the swivel 217, and the swivel 217 matches the screen 26. The coordination of the power circular cover 218 and the screen 26, as well as the covering of the swivel 217, realizes the stable installation and rotation of the screen 26, ensuring that the mineral material can be effectively screened on the screen 26. The screen 26 comprises two upper and lower circular rings. The upper large circular ring and the power dome 218 are each provided with two semicircular positioning holes. The lower circular ring protrudes outward to form two semicircular protrusions, which match the two semicircular positioning holes. The rotating ring 217 protrudes downward to form two round rod protrusions, which match the two semicircular positioning holes. The lowermost screen 26 is placed in the power dome 218, and the remaining screens are stacked. The rotating ring 217 covers the uppermost screen 26.

[0033] like Figure 7 As shown, the lower housing 29 is connected to a reduction motor 210, the output shaft of the reduction motor 210 is connected to the active bevel gear 211, the lower housing 29 bearing is connected to the lower splined tubular shaft 216, the lower splined tubular shaft 216 is connected to the power bevel gear 215, the power bevel gear 215 meshes with the active bevel gear 211, the lower splined tubular shaft 216 is provided with a lower splined shaft 214, the lower splined shaft 214 is connected to the runner, the eccentric part of the runner is connected to the ball head rod 213, the lower housing 29 is connected to the wedge block 212, the ball head of the ball head rod 213 contacts the inclined surface of the wedge block 212, and the lower splined shaft 214 passes through the lower circular plate 27 and is connected to the power round cover 218. The reduction motor 210 in the lower housing transmits power to the lower splined tubular shaft 216 through the meshing of the bevel gears, thereby driving the power round cover 218 and the screen 26 to rotate. The cooperation between the ball head rod 213 and the wedge block 212 realizes the eccentric transmission of power, so that the screen 26 can reciprocate along the height direction while rotating, thereby enhancing the screening effect and improving the screening efficiency and accuracy.

[0034] like Figure 2 and 5As shown, the rotating ring 217 is connected to the ring gear 32, the mounting plate 22 is connected to the central axis of the gear 31, the gear 31 is engaged with the ring gear 32, the central axis of the gear 31 is connected to the turntable 39, the eccentric part of the turntable 39 protrudes outward to form a round block, and the round block is set in the slide 38, the mounting vertical plate 35 is connected to the symmetrical thin rods 37, the symmetrical thin rods 37 respectively pass through the slide 38, and the two ends of the slide 38 are respectively rotatably connected to the power connecting rod 310, and the symmetrical power connecting rods The mounting bars 310 are rotatably connected to the mounting bars 311, which are connected to the lower T-block 16. The mounting risers 35 are rotatably connected to the upper ends of the symmetrical upper connecting rods 33. The lower ends of the symmetrical upper connecting rods 33 are rotatably connected to the upper ends of the middle connecting rods 34. The centers of the symmetrical middle connecting rods 34 are rotatably connected to the upper T-block 114. The lower ends of the symmetrical middle connecting rods 34 are rotatably connected to the upper ends of the lower connecting rods 313. The lower ends of the symmetrical lower connecting rods 313 are rotatably connected to the lower T-block 16. The meshing of the ring gears, the placement of the round block in the turntable 39, and the matching of the slide slots 38 enable power transmission, allowing the power connecting rod 310 to drive the mounting bars 311 to move in the height direction. By adopting a parallelogram mechanism composed of the upper, middle, and lower connecting rods, the movement of the upper and lower T-blocks is achieved, and the movement range of the lower T-block 16 is greater than that of the upper T-block 114. The frame 17 moves in the height direction, and the feeding U trough 11 swings back and forth to realize intermittent feeding of the ore.

[0035] The workflow of this embodiment is: When the motor 210 rotates, it drives the active bevel gear 211 to rotate, and the active bevel gear 211 drives the power bevel gear 215, the lower spline shaft 216, the lower spline shaft 214 and the runner to rotate. The runner drives the ball head rod 213 to rotate and move along the inclined surface of the wedge block 212. The ball head rod 213 drives the lower spline shaft 214 to move along the height direction of the lower spline shaft 216. The lower spline shaft 214 drives the power round cover 218, the screen 26, and the swivel 217 to rotate. At the same time, it moves in the height direction. The power round cover 218 drives the mounting plate 22 to move along the guide rod 23. The mounting plate 22 drives the spring 28 to move. The swivel 217 drives the mounting plate 22, the feed tube 21, the transmission assembly 3 and the feeding assembly 1 to move in the height direction. The swivel 217 drives the ring gear 32 to rotate. The ring gear 32 drives the gear 31 and the turntable 39 to rotate. The round block on the turntable 39 swings in the chute 38. The round block drives the chute 38 to move along the thin rod 37. The slide groove 38 drives the power connecting rod 310 to swing, the power connecting rod 310 drives the mounting bar 311 to move in the height direction, the mounting bar 311 drives the lower T block 16 (moves along the vertical groove 36) and the frame 17 to move, the lower T block 16 drives the lower connecting rod 313 to swing, the lower connecting rod 313 drives the middle connecting rod 34 to swing, the middle connecting rod 34 drives the upper T block 114 (moves along the vertical groove 36), the horizontal plate 113 and the vertical plate 112 to move, the middle connecting rod 34 drives the upper connecting rod 33 to swing, the frame 17 drives the feed U groove 11 to swing, and the feed U groove 11 drives the limit connecting rod 12 to swing.

[0036] Example 2: This example is further described based on Example 1. Figure 2-4 As shown, the mounting bar 311 is connected to the rack 314, the mounting vertical plate 35 is connected to the central axis of the transmission gear 312 by a bearing, the transmission gear 312 meshes with the rack 314, the central axis of the transmission gear 312 is connected to the transmission bevel gear 14, the extended horizontal plate of the mounting vertical plate 35 is connected to the upper splined tubular shaft 315 by a bearing, the upper splined tubular shaft 315 is connected to the end bevel gear 13, the end bevel gear 13 meshes with the transmission bevel gear 14, the upper splined shaft 15 is arranged in the upper splined tubular shaft 313, the upper splined shaft 15 is connected to the horizontal plate 113 by a bearing, and the upper splined shaft 15 is connected to the U-shaped stirring rod 111. The U-shaped stirring rod 111 is arranged in the area formed by the frame 17 and the symmetrical vertical plate 112, and the lower part of the upper splined shaft 15 and the surface of the U-shaped stirring rod 111 are covered with rubber. The U-shaped stirring rod 111 can stir in the area formed by the frame 17 and the vertical plate 112 to disperse the mineral materials, prevent the mineral materials from being blocked or accumulated during the screening process, and improve the uniformity and reliability of the screening.

[0037] The workflow of this embodiment is: The mounting bar 311 drives the rack 314 to move, the rack 314 drives the transmission gear 312 to rotate, the transmission gear 312 drives the transmission bevel gear 14 to rotate, the transmission bevel gear 14 drives the end bevel gear 13, the upper splined tube shaft 315, the upper splined shaft 15 and the U-shaped stirring rod 111 to rotate, the cross plate 113 drives the upper splined shaft 15 to move along the upper splined tube shaft 315, and the upper splined shaft 15 drives the U-shaped stirring rod 111 to move in the height direction.

[0038] Example 3: This example is further described based on Example 1 or 2. Figure 4 and 6 As shown, the frame 17 is rotatably connected to two relatively staggered spring rods 110. The two spring rods 110 are each rotatably connected to mounting rods 19. The frame 17 is rotatably connected to symmetrical grid plates 18. The symmetrical mounting rods 19 are each connected to a corresponding grid plate 18. The two grid plates 18 are staggered. When the two grid plates 18 are horizontal, they block the area formed by the frame 17 and the symmetrical vertical plates 112. As the ore falls, the ore drives the grid plates 18 on both sides to tilt, which in turn drives the mounting rods 19 to swing. The mounting rods 19 drive the spring rods 110 to swing and stretch simultaneously. The inertia of the frame 17 driving the grid plates 18, mounting rods 19, and spring rods 110 facilitates the ore's descent. This achieves preliminary screening and graded drop of the ore, improving screening accuracy and efficiency.

[0039] The two vertical plates 112 are respectively disposed in the frame 17 , and the lower ends of the two vertical plates 112 are respectively disposed in the feeding circular tube 21 .

[0040] The workflow of this embodiment is: As the ore falls, the grating plates 18 on both sides are tilted, the grating plates 18 drive the mounting rods 19 to swing, and the mounting rods 19 drive the spring rods 110 to swing and stretch at the same time. The frame 17 drives the grating plates 18, the mounting rods 19 and the spring rods 110 to move by inertia, which facilitates the falling of the ore.

[0041] Example 4: This example is further described based on Example 1 or 2. Figure 5 As shown, the difference from the third embodiment is that the two grid plates 18 are respectively rotatably connected to the corresponding vertical plates 112, and the vertical plates 112 are arranged outside the frame 17, and the lower ends of the vertical plates 112 are always higher than the lower end of the frame 17. The lower end of the frame 17 is arranged in the feeding tube 21.

[0042] The workflow of this embodiment is: As the ore falls, due to the use of a parallelogram mechanism consisting of upper, middle and lower connecting rods, the frame 17 moves downward a distance greater than the distance at one end of the vertical plate 112, so that the spring rod 110 drives the mounting rod 19 to swing, and the mounting rod 19 drives the grid plate 18 to swing, so that it changes from a horizontal state at the upper end of the stroke to a vertical state at the lower end of the stroke. Small ore falls from the gap between the grid plates 18, and large ore falls when the grid plates 18 are separated, which facilitates the falling of the ore.

[0043] Example 5: This example is further described based on Example 1, 2, 3 or 4. Figure 1 、 2 As shown in Figures 7 to 9, the lower circular plate 27 is connected to symmetrical screw rods 24, which pass through the mounting plate 22. Locking nuts 25 are provided on both sides of the mounting plate 22, corresponding to each screw rod 24. Each locking nut 25 is threadedly connected to a corresponding screw rod 24. The locking nuts secure the lower circular plate 27 and mounting plate 22, ensuring a stable connection and positional adjustment. This allows the device to flexibly adjust the distance between the lower circular plate and mounting plate to accommodate different screening requirements, thereby facilitating the placement of the screen 26.

[0044] The workflow of this embodiment is: When installing the mounting plate 22 , the swivel 217 is brought into close contact with the uppermost screen 26 , and the upper locking nut 25 is tightened.

[0045] When removing the ore, loosen the upper locking nut 25, move the mounting plate 22 so that it contacts the upper locking nut 25, move the lower locking nut 25 upward so that it contacts the mounting plate 22, fix the mounting plate 22, remove the screen 26, and remove the ore.

[0046] A method for detecting the performance of a plant-mixed hot-regenerated asphalt testing device comprises the following steps: S1: Take samples at the asphalt mixing plant. When taking samples, it is advisable to use a special container placed under the mixer discharge hopper. Take a sample each time the material is added, and put it into the sample container in sequence. Each time, pour it onto a clean flat plate. Take samples several times in succession, mix them evenly, and use the quartering method to take samples until a sufficient number of samples are obtained. S2: Weigh all mineral samples to an accuracy of 0.1g; S3: drying the ore in an oven at 105°C and cooling to room temperature; S4: placing the ore into the device for screening; S5: Calculate the percentage of ore in each particle size range based on the mass of the ore after screening, and draw the gradation curve of the ore composition.

[0047] The specific steps of S4 are: S41: According to the screening requirements, the screen 26 of appropriate quantity and type is selected and stacked on the power dome 218, and the rotating ring 217 is placed on the uppermost screen 26; S42: Turn on the reduction motor 210; S43: continuously adding mineral materials into the feed U trough 11; S44: The feed U chute 11 swings back and forth, conveying the ore to the area formed by the frame 17 and the vertical plate 112. Under the action of the gravity of the ore, the two grid plates 18 swing and tilt from a horizontal state, and small ore falls from the gap between the grid plates 18. Large ore falls after the two grid plates 18 separate, achieving a state of approximately step-by-step falling. S45: The screen 26 rotates and reciprocates in the height direction to achieve screening of the mineral material.

[0048] This device realizes intermittent feeding by using the feeding U-trough 11 and the grid plate 18. When the frame 17 moves downward, the inclination angle of the feeding U-trough 11 becomes larger, so that the ore moves downward and enters the area formed by the frame 17 and the vertical plate 112; when the grid plate 18 is rotated and connected to the frame 17, the gravity of the ore and the inertia of the ore following the frame 17, the vertical plate 112 and the grid plate 18 cause the grid plate 18 to passively swing and tilt from the horizontal state, and small ore falls from the gap between the grid plates 18, and large ore falls after the two grid plates 18 separate; the grid plate 18 rotates and connects to the vertical plate When 112 is reached, due to the use of a parallelogram mechanism consisting of upper, middle and lower connecting rods, the distance that the frame 17 moves downward is greater than the distance at one end of the vertical plate 112, so that the spring rod 110 drives the mounting rod 19 to swing, and the mounting rod 19 drives the grid plate 18 to actively swing, so that it changes from a horizontal state at the upper end of the stroke to a vertical state at the lower end of the stroke. Small ore falls from the gap between the grid plates 18, and large ore falls when the grid plates 18 are separated, which facilitates the falling of the ore; an intermittent material discharge state that is approximately step-by-step is achieved.

[0049] This device utilizes a bevel gear transmission and the coordination of a ball rod 213 and a wedge block 212, allowing the screen 26 to simultaneously rotate and reciprocate in the height direction, thereby enhancing the screening effect and improving screening efficiency and accuracy. The rotation of the swivel 217, the meshing of the ring gear, and the engagement of the round block in the turntable 39 with the chute 38 achieve power transmission, allowing the power connecting rod 310 to drive the mounting bar 311 in the height direction. The parallelogram mechanism composed of upper, middle, and lower connecting rods enables the movement of the upper and lower T-blocks, resulting in a greater travel range for the lower T-block 16 than for the upper T-block 114.

[0050] Although the above describes the specific implementation methods of the invention in conjunction with the accompanying drawings, it does not limit the scope of protection of the invention. Based on the technical solution of the present invention, various modifications or variations that can be made by those skilled in the art without creative work are still within the scope of protection of the present invention.

Claims

1. A plant-mixed hot recycled asphalt performance testing device, characterized in that: include: A feeding assembly (1), a screening assembly (2) and a transmission assembly (3), wherein the feeding assembly (1) is connected to the screening assembly (2) and the transmission assembly (3), and the transmission assembly (3) is connected to the screening assembly (2); The screening assembly (2) includes a lower box (29), the lower box (29) is connected to a group of guide rods (23), the group of guide rods (23) are respectively connected and pass through the lower circular plate (27) and the mounting plate (22), and the mounting plate (22) is connected to the feed circular tube (21); The transmission assembly (3) includes a mounting vertical plate (35), the mounting vertical plate (35) is connected to the mounting plate (22), and the mounting vertical plate (35) is provided with a vertical slot (36); The feeding assembly (1) comprises an upper T-block (114) and a lower T-block (16), wherein the upper T-block (114) and the lower T-block (16) are respectively nested in the vertical slot (36), the upper T-block (114) is connected to the horizontal plate (113), the horizontal plate (113) is connected to the symmetrical vertical plate (112), and the lower T-block (16) is connected to the frame (17); The groove of the frame (17) is rotatably connected to the feed U groove (11), and the feed U groove (11) is rotatably connected to one end of a symmetrical limit link (12), and the other end of the symmetrical limit link (12) is rotatably connected to the mounting plate (22).

2. The plant-mixed hot-regenerated asphalt performance testing device according to claim 1, characterized in that: The lower circular plate (27) is connected to the lower box (29) via a set of springs (28); the annular bearing of the lower circular plate (27) is connected to the power circular cover (218); the power circular cover (218) matches the screen (26); the bearing of the mounting plate (22) is connected to the rotating ring (217); and the rotating ring (217) matches the screen (26).

3. The plant-mixed hot-regenerated asphalt performance testing device according to claim 2, characterized in that: The lower housing (29) is connected to a reduction motor (210), the output shaft of the reduction motor (210) is connected to a driving bevel gear (211), the lower housing (29) bearing is connected to a lower splined tube shaft (216), the lower splined tube shaft (216) is connected to a power bevel gear (215), the power bevel gear (215) is engaged with the driving bevel gear (211), a lower splined shaft (214) is provided in the lower splined tube shaft (216), the lower splined shaft (214) is connected to a rotating wheel, the eccentric part of the rotating wheel is connected to a ball head rod (213), the lower housing (29) is connected to a wedge block (212), the ball head of the ball head rod (213) contacts the inclined surface of the wedge block (212), and the lower splined shaft (214) passes through the lower circular plate (27) and is connected to the power circular cover (218).

4. The plant-mixed hot-regenerated asphalt performance testing device according to claim 3 is characterized by: The rotating ring (217) is connected to the gear ring (32), the mounting plate (22) is connected to the central axis of the gear (31), the gear (31) is engaged with the gear ring (32), the central axis of the gear (31) is connected to the turntable (39), the eccentric part of the turntable (39) is protruded outward to form a round block, and the round block is set in the slide groove (38), the mounting vertical plate (35) is connected to the symmetrical thin rods (37), the symmetrical thin rods (37) respectively pass through the slide groove (38), and the two ends of the slide groove (38) are respectively rotatably connected to the power connecting rod (310) The symmetrical power connecting rods (310) are respectively rotatably connected to the mounting bars (311), the mounting bars (311) are connected to the lower T-block (16), the mounting vertical plates (35) are respectively rotatably connected to the symmetrical upper connecting rods (33), the symmetrical upper connecting rods (33) are respectively rotatably connected to the middle connecting rods (34), the centers of the symmetrical middle connecting rods (34) are respectively rotatably connected to the upper T-block (114), the symmetrical middle connecting rods (34) are respectively rotatably connected to the lower connecting rods (313), and the symmetrical lower connecting rods (313) are respectively rotatably connected to the lower T-block (16).

5. The plant-mixed hot-regenerated asphalt performance testing device according to claim 4 is characterized in that: The frame (17) is rotatably connected to two spring rods (110), the two spring rods (110) are rotatably connected to mounting rods (19), the frame (17) is rotatably connected to symmetrical grid plates (18), the symmetrical mounting rods (19) are respectively connected to corresponding grid plates (18), and the two grid plates (18) are staggered.

6. The plant-mixed hot-regenerated asphalt performance testing device according to claim 4, characterized in that: The mounting bar (311) is connected to the rack (314), the mounting vertical plate (35) is connected to the central axis of the transmission gear (312) by a bearing, the transmission gear (312) is engaged with the rack (314), the central axis of the transmission gear (312) is connected to the transmission bevel gear (14), the extended horizontal plate of the mounting vertical plate (35) is connected to the upper splined tube shaft (315) by a bearing, the upper splined tube shaft (315) is connected to the end bevel gear (13), the end bevel gear (13) is engaged with the transmission bevel gear (14), an upper splined shaft (15) is arranged in the upper splined tube shaft (313), the upper splined shaft (15) is connected to the horizontal plate (113) by a bearing, and the upper splined shaft (15) is connected to the U-shaped stirring rod (111).

7. The plant-mixed hot-regenerated asphalt performance testing device according to claim 1, characterized in that: The lower circular plate (27) is connected to symmetrical screw rods (24), and the symmetrical screw rods (24) respectively pass through the mounting plate (22). Locking nuts (25) are respectively provided on both sides of the mounting plate (22) corresponding to each of the screw rods (24), and each of the locking nuts (25) is respectively threadedly connected to the corresponding screw rod (24).

8. The method for detecting the performance of a plant-mixed hot-regenerated asphalt according to claim 1, wherein: The following steps are involved: S1: Sampling at the asphalt mixing plant; S2: Weigh all mineral samples to an accuracy of 0.1g; S3: drying the ore in an oven at 105°C and cooling to room temperature; S4: placing the ore into the device for screening; S5: Calculate the percentage of ore in each particle size range based on the mass of the ore after screening, and draw the gradation curve of the ore composition.

9. A detection method according to claim 1, characterized in that: The specific steps of S4 are: S41: According to the screening requirements, select the appropriate amount and model of the screen (26), stack it on the power dome (218), and cover the rotating ring (217) on the uppermost screen (26); S42: Turn on the reduction motor (210); S43: continuously adding ore into the feed U trough (11); S44: The feed U trough (11) swings back and forth to transport the ore to the area formed by the frame (17) and the vertical plate (112). Under the action of the gravity of the ore, the two grid plates (18) swing and tilt from the horizontal state, and small ore falls from the gap between the grid plates (18). Large ore falls after the two grid plates (18) separate, achieving a state of approximately step-by-step falling. S45: The screen (26) rotates and reciprocates in the height direction to achieve screening of the mineral material.

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