Device for detecting performance of hot mix plant recycled asphalt

Abstract

The invention relates to the technical field of detection devices, and discloses a hot mix plant recycled asphalt performance detection device which comprises a movable frame of an L-shaped structure and further comprises a lower supporting frame and an upper supporting frame which are both installed on the surface of the movable frame in a sliding mode. A first auxiliary frame is fixedly installed on the side, away from the movable frame, of the upper supporting frame. By arranging the second detection mechanism, in the water seepage detection process, water dripping from the bottom of a sample and sample crushed aggregates can be separated through a draining plate, the total weight M1 of the water and the wet crushed aggregates can be obtained through arranging a first weighing device, and the weight M2 of the wet crushed aggregates can be obtained through arranging a second weighing device; then the crushed aggregates are dried while the water absorption rate of the crushed aggregates is detected through a microwave moisture meter, the weight of the dried crushed aggregates is M3, M1-M3 is the accurate weight of the seepage water of the sample, the situation that the crushed aggregates of the sample interfere with the weighing of the seepage water is effectively avoided, and the detection precision of equipment is improved.

Description

Technical Field

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

[0002] As global road infrastructure ages, especially in some areas of roads that have been built for many years or are subject to high traffic loads, hot recycled asphalt plants provide an ideal road maintenance method. Recycled asphalt can not only be used for new roads, but can also be widely used in the repair, paving and reconstruction of existing roads. In order to ensure that the performance of recycled asphalt can meet the use requirements, it is often necessary to make samples for performance testing.

[0003] A regenerated asphalt concrete performance testing device in the prior art (Announcement No.: CN221326271U) prevents water from flowing directly from the concrete surface into the water receiving cup, making the permeability measurement inaccurate, by setting a fixed anti-overflow mechanism and an anti-dumping measuring mechanism. However, during the water seepage detection process, some sample fragments will fall into the water receiving cup, causing a large error in the measurement result. Therefore, it is urgent to design a plant-mixed hot recycled asphalt performance testing device with higher measurement accuracy. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a plant-mixed hot recycled asphalt performance detection device.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A plant-mixed hot recycled asphalt performance testing device comprises a mobile frame, the mobile frame is an L-shaped structure, and further comprises: A lower support frame and an upper support frame, wherein the lower support frame and the upper support frame are both slidably mounted on the surface of the mobile frame, and a first auxiliary frame is fixedly mounted on a side of the upper support frame away from the mobile frame; A first detection mechanism, which is disposed in the first auxiliary frame and is used to inject detection water and detect the water absorption and diffusion range of the sample surface; The second detection mechanism is arranged on the top of the lower support frame, and is used to detect water seepage of the sample.

[0006] As a further solution of the present invention, the first detection mechanism includes two electric telescopic rods, a water inlet funnel, a lifting plate, a waterproof cover and a plurality of capacitive hygrometers, the waterproof cover is fixedly installed at the bottom of the first auxiliary frame, the two electric telescopic rods are fixedly installed at the top of the first auxiliary frame, the lifting plate is fixedly installed at the telescopic ends of the two electric telescopic rods, and the plurality of capacitive hygrometers are evenly fixedly installed at the bottom of the lifting plate in a circle.

[0007] As a further solution of the present invention, a plurality of avoidance holes compatible with the capacitive hygrometer are opened on the top of the waterproof cover, the water inlet funnel is fixedly installed on the top of the first auxiliary frame, and an extension tube is provided at the bottom of the water inlet funnel, and the bottom end of the extension tube is flush with the bottom of the waterproof cover.

[0008] As a further solution of the present invention, the second detection mechanism includes a water collecting cup, a second auxiliary frame, a first weighing device, a drain plate, a support rod and a second weighing device. The first weighing device is fixedly installed on the top of the lower support frame. The bottom of the second auxiliary frame is a hollow structure and is fixedly installed in the middle of the top of the first weighing device. The water collecting cup is fixedly installed on the top of the second auxiliary frame.

[0009] As a further solution of the present invention, the second weighing device is fixedly installed in the middle of the top of the first weighing device, the support rod is fixedly installed in the middle of the top of the second weighing device, and the top end of the support rod passes through the second auxiliary frame and the outer surface of the water collecting cup and is fixedly installed in the middle of the bottom of the drain plate.

[0010] As a further solution of the present invention, the drain plate is circular and has a hollow surface structure, the outer diameter of the drain plate is matched with the inner diameter of the water collecting cup, a groove is provided at the top of the support rod, a third motor is fixedly installed in the groove, a waterproof cap with a conical structure is rotatably installed in the middle of the top of the drain plate, a cleaning rod is fixedly installed on the surface of the waterproof cap, the output end of the third motor passes through the outer surface of the drain plate and is fixedly installed with the rotation center of the bottom of the waterproof cap, and a sealing ring is embedded in the notch of the groove.

[0011] As a further solution of the present invention, a third auxiliary frame with a ring-shaped structure is fixedly mounted on the outer surface of the water collecting cup, and a plurality of microwave moisture meters are fixedly installed in a circle on the top of the third auxiliary frame. The microwave emitting ends and temperature detection ends of the plurality of microwave moisture meters are inserted into the water collecting cup and are located around the drain plate.

[0012] As a further solution of the present invention, a slag discharge port is provided on the surface of the water collecting cup, a blocking block is detachably fixedly installed in the slag discharge port, a notch is provided on the top of the third auxiliary frame near the blocking block, a slag collecting box is detachably fixedly installed in the notch.

[0013] As a further solution of the present invention, a first screw rod and a second screw rod are rotatably installed on one side of the movable frame, one end of the first screw rod passes through the outer surface of the lower support frame and is threadedly connected thereto, one end of the second screw rod passes through the outer surface of the upper support frame and is threadedly connected thereto, and a first motor and a second motor are fixedly installed on the upper and lower ends of one side of the movable frame, respectively, and the output ends of the first motor and the second motor are fixedly installed on the rotation centers of one ends of the first screw rod and the second screw rod, respectively.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting up the second detection mechanism, during the water seepage detection process, the water dripping from the bottom of the sample and the sample debris can be separated by the drain plate, and the total weight M of the water and the wet debris can be obtained by setting up the first weighing device. 1 The second weighing device can obtain the weight M of the wet crushed material. 2 Then the water absorption rate of the crushed material is tested by microwave moisture meter. After microwave testing, the crushed material is dry. At this time, the second weighing device shows that the weight of the dry crushed material is M. 3 , M 1 -M 3 That is, the precise weight of the water infiltrated by the sample, which effectively avoids the interference of sample fragments in the weighing of the water infiltration and improves the accuracy of equipment detection; 2. By setting up the first detection mechanism, the water inlet funnel and its extension tube can be used to put in water for detection and prevent water from flowing around the sample surface. By setting up multiple capacitive hygrometers, the water absorption and diffusion of the sample surface can be detected in real time, and the water seepage of the sample can be further understood, thereby improving the comprehensiveness of the equipment in detecting the water seepage of the sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a plant-mixed hot recycled asphalt performance detection device proposed by the present invention; Figure 2 A schematic diagram of a mobile frame structure of a plant-mixed hot recycled asphalt performance testing device proposed by the present invention; Figure 3 This is a schematic cross-sectional view of a plant-mixed hot-regenerated asphalt performance testing device proposed by the present invention; Figure 4 for Figure 3 A schematic diagram of the enlarged structure of part A; Figure 5 This is a schematic diagram of the split structure of the second detection mechanism of a plant-mixed hot-regenerated asphalt performance detection device proposed by the present invention; Figure 6 This is a schematic diagram of the structure of the first detection mechanism of a plant-mixed hot-regenerated asphalt performance detection device proposed by the present invention; Figure 7 for Figure 5 A schematic diagram of the enlarged structure of part B; Figure 8 This is a schematic diagram of the waterproof cap and drain plate structure of a plant-mixed hot-regenerated asphalt performance testing device proposed by the present invention.

[0016] In the figure: 1. moving frame; 2. first motor; 3. first screw rod; 4. lower support frame; 5. upper support frame; 6. second screw rod; 7. second motor; 8. first auxiliary frame; 9. electric telescopic rod; 10. water inlet funnel; 11. lifting plate; 12. protective cover; 13. water collecting cup; 14. second auxiliary frame; 15. first weighing device; 16. capacitance hygrometer; 17. third auxiliary frame; 18. microwave moisture meter; 19. drain plate; 20. second weighing device; 21. third motor; 22. waterproof cap; 23. sealing ring; 24. support rod; 25. cleaning rod; 26. blocking block; 27. slag collecting box. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0018] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] Reference Figure 1-Figure 8, a plant-mixed hot-regenerated asphalt performance testing device comprises a mobile frame 1, the mobile frame 1 is an L-shaped structure, and also comprises: a lower support frame 4 and an upper support frame 5, the lower support frame 4 and the upper support frame 5 are both slidably mounted on the surface of the mobile frame 1, and a first auxiliary frame 8 is fixedly mounted on the side of the upper support frame 5 away from the mobile frame 1; a first detection mechanism, the first detection mechanism is arranged in the first auxiliary frame 8, the first detection mechanism is used to put in detection water and detect the water absorption and diffusion range of the sample surface; a second detection mechanism, the second detection mechanism is arranged on the top of the lower support frame 4, the second detection mechanism is used to detect the water seepage of the sample, the second detection mechanism comprises a water collecting cup 13, a second auxiliary frame 14, a first weighing device 15, a drain plate 19, a support rod 24 and a second weighing device 20, the first weighing device 15 is fixedly mounted on the top of the lower support frame 4, the bottom of the second auxiliary frame 14 is a hollow structure and is fixedly mounted in the middle of the top of the first weighing device 15, the water collecting cup 13 is fixedly mounted on the top of the second auxiliary frame 14, and the second weighing device 20 is fixedly mounted on the first In the middle of the top of the weighing device 15, a support rod 24 is fixedly installed in the middle of the top of the second weighing device 20. The top of the support rod 24 passes through the second auxiliary frame 14 and the outer surface of the water collecting cup 13 and is fixedly installed in the middle of the bottom of the drain plate 19. The drain plate 19 is a circular structure with a hollow surface. The outer diameter of the drain plate 19 is adapted to the inner diameter of the water collecting cup 13. A groove is opened at the top of the support rod 24. A third motor 21 is fixedly installed in the groove. A waterproof cap 22 with a conical structure is rotatably installed in the middle of the top of the drain plate 19. The waterproof cap 2 A cleaning rod 25 is fixedly installed on the surface of the water collecting cup 13, the output end of the third motor 21 passes through the outer surface of the drain plate 19 and is fixedly installed with the rotation center of the bottom of the waterproof cap 22, a sealing ring 23 is embedded in the groove, and a third auxiliary frame 17 with a ring structure is fixedly sleeved on the outer surface of the water collecting cup 13, and a plurality of microwave moisture meters 18 are fixedly installed on the top of the third auxiliary frame 17 in a circumferential manner, and the microwave emitting ends and temperature detection ends of the plurality of microwave moisture meters 18 are inserted into the water collecting cup 13 and are located around the drain plate 19.

[0021] When in use, by setting up the second detection mechanism, during the water seepage detection process, the water dripping from the bottom of the sample and the sample debris can be separated by the drain plate 19, and the waterproof cap 22 is driven to rotate by the third motor 21, thereby driving the cleaning rod 25 to move the debris on the surface of the drain plate 19, so that the water on the surface is fully separated and falls into the water collection cup 13, and the first weighing device 15 is set to obtain the total weight M of the water and the wet debris. 1 The second weighing device 20 can obtain the weight M of the wet crushed material. 2 Then the water absorption rate of the crushed material is detected by the microwave moisture meter 18. After the microwave measurement, the crushed material is in a dry state. At this time, the second weighing device 20 shows that the weight of the dry crushed material is M. 3 , M 1 -M 3That is the precise weight of the water seeping from the sample, which effectively avoids the interference of sample fragments in the weighing of the seeping water and improves the accuracy of equipment detection.

[0022] In this embodiment, the first detection mechanism includes two electric telescopic rods 9, a water inlet funnel 10, a lifting plate 11, a protective cover 12 and multiple capacitive hygrometers 16. The protective cover 12 is fixedly installed at the bottom of the first auxiliary frame 8, the two electric telescopic rods 9 are fixedly installed at the top of the first auxiliary frame 8, the lifting plate 11 is fixedly installed at the telescopic ends of the two electric telescopic rods 9, and multiple capacitive hygrometers 16 are evenly fixedly installed at the bottom of the lifting plate 11 in a circular shape. A plurality of avoidance holes compatible with the capacitive hygrometers 16 are opened at the top of the protective cover 12. The water inlet funnel 10 is fixedly installed at the top of the first auxiliary frame 8. An extension tube is provided at the bottom of the water inlet funnel 10, and the bottom end of the extension tube is flush with the bottom of the protective cover 12.

[0023] When in use, by setting up the first detection mechanism, the water inlet funnel 10 and its extension tube can be used to put in water for detection and prevent water from flowing around the sample surface. By setting up multiple capacitive hygrometers 16, the water absorption and diffusion of the sample surface can be detected in real time, and the water seepage of the sample can be further understood, thereby improving the comprehensiveness of the equipment in detecting the water seepage of the sample.

[0024] In this embodiment, a slag discharge port is provided on the surface of the water collecting cup 13, and a blocking block 26 is detachably fixedly installed in the slag discharge port. A notch is provided on the top of the third auxiliary frame 17 near the blocking block 26, and a slag collecting box 27 is detachably fixedly installed in the notch. A first screw rod 3 and a second screw rod 6 are rotatably installed on one side of the mobile frame 1, one end of the first screw rod 3 passes through the outer surface of the lower support frame 4 and is threadedly connected to it, one end of the second screw rod 6 passes through the outer surface of the upper support frame 5 and is threadedly connected to it, and a first motor 2 and a second motor 7 are fixedly installed on the upper and lower ends of one side of the mobile frame 1, and the output ends of the first motor 2 and the second motor 7 are fixedly installed on the rotation center of one end of the first screw rod 3 and the second screw rod 6, respectively.

[0025] During use, by removing the block 26, the sample fragments on the surface of the drain plate 19 can be cleaned from the slag discharge port to the slag collecting box 27 for centralized collection, so as to avoid the equipment continuing to detect. The residual slag on the drain plate 19 affects the accuracy of data detection. To ensure the safe use of the microwave moisture meter 18, the water collection cup 13, drain plate 19, waterproof cap 22, support rod 24, cleaning rod 25 and block 26 are all made of high temperature resistant materials with low microwave absorption rate, such as ceramics.

[0026] The working principle of the present invention is as follows: first, the sample is set up and fixed, and then the mobile frame 1 is pushed close to the sample, so that the first detection mechanism and the second detection mechanism are respectively located at the upper and lower sides of the sample, and then the first motor 2 and the second motor 7 are started, the first motor 2 drives the first screw rod 3 to rotate, and the first screw rod 3 drives the lower support frame 4 to move upward by threading until the top of the water collection cup 13 abuts against the bottom of the sample, the second motor 7 drives the second screw rod 6 to rotate, and the second screw rod 6 drives the upper support frame 5 to move downward by threading until the bottom of the protective cover 12 abuts against the top surface of the sample; Next, the first weighing device 15 and the second weighing device 20 are calibrated to zero, and then the test water is injected into the water inlet funnel 10. At the same time, multiple capacitance hygrometers 16 are turned on to detect the water absorption and diffusion of the sample surface in real time. After the penetration time is over, the weight M displayed by the first weighing device 15 is recorded. 1 , and the weight displayed on the second scale is M 2 ; Then, a plurality of microwave moisture meters 18 are started to detect the water absorption rate of the wet crushed material on the surface of the drain plate 19, and the absorbed water is evaporated by microwave heating, so as to obtain the weight of the crushed material before water absorption, which is displayed by the second weighing device 20 and recorded. 3 ; Last M 1 -M 3 That is, the precise mass of the water permeated by the sample improves the accuracy of the equipment's detection.

[0027] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A plant-mixed hot recycled asphalt performance testing device, comprising a mobile frame (1), wherein the mobile frame (1) is an L-shaped structure, characterized in that: Also includes: A lower support frame (4) and an upper support frame (5), wherein the lower support frame (4) and the upper support frame (5) are both slidably mounted on the surface of the mobile frame (1), and a first auxiliary frame (8) is fixedly mounted on a side of the upper support frame (5) away from the mobile frame (1); A first detection mechanism, the first detection mechanism being arranged in the first auxiliary frame (8), the first detection mechanism being used to inject detection water and detect the water absorption and diffusion range of the sample surface; A second detection mechanism, the second detection mechanism is arranged on the top of the lower support frame (4), and the second detection mechanism is used to detect water seepage of the sample.

2. A plant-mixed hot-regenerated asphalt performance detection device according to claim 1, characterized in that: The first detection mechanism comprises two electric telescopic rods (9), a water inlet funnel (10), a lifting plate (11), a protective cover (12) and a plurality of capacitance hygrometers (16); the protective cover (12) is fixedly mounted on the bottom of the first auxiliary frame (8); the two electric telescopic rods (9) are fixedly mounted on the top of the first auxiliary frame (8); the lifting plate (11) is fixedly mounted on the telescopic ends of the two electric telescopic rods (9); and the plurality of capacitance hygrometers (16) are fixedly mounted on the bottom of the lifting plate (11) in a uniform circular pattern.

3. A plant-mixed hot-regenerated asphalt performance detection device according to claim 2, characterized in that: The top of the protective cover (12) is provided with a plurality of avoidance holes adapted to the capacitance hygrometer (16); the water inlet funnel (10) is fixedly mounted on the top of the first auxiliary frame (8); an extension tube is provided at the bottom end of the water inlet funnel (10); the bottom end of the extension tube is flush with the bottom of the protective cover (12).

4. The plant-mixed hot-regenerated asphalt performance detection device according to claim 1 is characterized in that: The second detection mechanism comprises a water collecting cup (13), a second auxiliary frame (14), a first weighing device (15), a drain plate (19), a support rod (24) and a second weighing device (20); the first weighing device (15) is fixedly mounted on the top of the lower support frame (4); the bottom of the second auxiliary frame (14) is a hollow structure and is fixedly mounted in the middle of the top of the first weighing device (15); and the water collecting cup (13) is fixedly mounted on the top of the second auxiliary frame (14).

5. A plant-mixed hot-regenerated asphalt performance detection device according to claim 4, characterized in that: The second weighing device (20) is fixedly mounted in the middle of the top of the first weighing device (15), and the support rod (24) is fixedly mounted in the middle of the top of the second weighing device (20). The top end of the support rod (24) passes through the outer surface of the second auxiliary frame (14) and the water collecting cup (13) and is fixedly mounted in the middle of the bottom of the drain plate (19).

6. A plant-mixed hot-regenerated asphalt performance detection device according to claim 5, characterized in that: The drain plate (19) is circular and has a hollowed-out structure. The outer diameter of the drain plate (19) matches the inner diameter of the water collecting cup (13). A groove is provided at the top of the support rod (24). A third motor (21) is fixedly installed in the groove. A waterproof cap (22) with a conical structure is rotatably installed in the middle of the top of the drain plate (19). A cleaning rod (25) is fixedly installed on the surface of the waterproof cap (22). The output end of the third motor (21) passes through the outer surface of the drain plate (19) and is fixedly installed with the rotation center of the bottom of the waterproof cap (22). A sealing ring (23) is embedded in the notch of the groove.

7. A plant-mixed hot-regenerated asphalt performance detection device according to claim 6, characterized in that: A third auxiliary frame (17) having an annular structure is fixedly sleeved on the outer surface of the water collecting cup (13), and a plurality of microwave moisture meters (18) are fixedly installed in a circular shape on the top of the third auxiliary frame (17). The microwave emitting ends and temperature detection ends of the plurality of microwave moisture meters (18) are inserted into the water collecting cup (13) and are located around the drain plate (19).

8. The plant-mixed hot-regenerated asphalt performance detection device according to claim 7 is characterized in that: The surface of the water collecting cup (13) is provided with a slag discharge port, a blocking block (26) is detachably fixedly installed in the slag discharge port, and a notch is provided on the top of the third auxiliary frame (17) near the blocking block (26), a slag collecting box (27) is detachably fixedly installed in the notch.

9. The plant-mixed hot-regenerated asphalt performance detection device according to claim 1 is characterized in that: A first screw rod (3) and a second screw rod (6) are rotatably mounted on one side of the mobile frame (1); one end of the first screw rod (3) passes through the outer surface of the lower support frame (4) and is threadedly connected thereto; one end of the second screw rod (6) passes through the outer surface of the upper support frame (5) and is threadedly connected thereto; a first motor (2) and a second motor (7) are fixedly mounted on the upper and lower ends of one side of the mobile frame (1); the output ends of the first motor (2) and the second motor (7) are fixedly mounted on the rotation centers of one ends of the first screw rod (3) and the second screw rod (6), respectively.

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