Asphalt ductility detection device

Abstract

The utility model discloses an asphalt ductility detection device. The asphalt ductility detection device comprises a pool tank, the second linear module is arranged on the outer side of the pool tank, a fixed supporting table is fixedly connected to the top of the second linear module, and a movable supporting table is installed on a movable sliding table of the second linear module; the mold testing device has the advantages that the transverse moving air cylinder and the vertical moving air cylinder are arranged, so that the position of a test mold can be accurately controlled in the horizontal direction or the vertical direction, the position of the test mold is flexibly adjusted through the second linear module, and the mold testing device is convenient to use and high in practicability. The device can be placed in water for experiment and can also be automatically scraped; through the cleaning scraper driven by the first linear module and the cross rod, the asphalt at the top of the test mold can be automatically cleaned, the requirement for manual operation is reduced, hand injury caused by misoperation during manual shoveling is avoided, and the operation efficiency and safety are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of asphalt ductility detection, in particular to an asphalt ductility detection device. Background Technique

[0002] The asphalt ductility refers to the ductility of asphalt, which is an important index for evaluating the plasticity of asphalt. The greater the ductility, the better the plasticity of the asphalt; when detecting it, the release agent is mixed evenly and applied to the inner surfaces of the clean and dry test mold bottom plate and the two side molds, and the test mold is properly installed on the test mold bottom plate. Prepare the specimen, and then carefully pour the specimen into the mold slowly back and forth several times from one end to the other end of the test mold, and finally it is slightly higher than the test mold. The specimen is cooled at room temperature for 30 min - 40 min, and then placed in a constant temperature water bath at the specified test temperature ±0.1 °C. After 30 min, take it out, and use a hot spatula to scrape off the asphalt higher than the test mold to make the asphalt surface flush with the test mold surface. Immerse the test mold together with the bottom plate in the water bath at the specified test temperature for 1 h - 1.5 h. Move the insulated specimen together with the bottom plate into the water bath of the equipment, then respectively put the holes at both ends of the test mold on the metal columns of the slide plate and the fixed plate at the end of the groove, and remove the side mold. The water surface should be not less than 25 mm from the specimen surface. Start the equipment and pay attention to observing the extension of the specimen.

[0003] When scraping off the asphalt higher than the test mold in the existing device, usually one hand holds the mold manually and the other hand uses a hot spatula to scrape off the asphalt higher than the test mold. During the scraping process, sudden forward sliding may occur due to a sudden decrease in resistance, and the operation process often causes hand injuries or being scalded by the scraping. The operation is very inconvenient. Moreover, during the experiment, according to requirements, the temperatures of 25 °C, 15 °C, 10 °C, and 5 °C are usually adopted, and the specimen needs to be placed in water manually. During the experiment in winter, the experimental operation is extremely inconvenient due to the influence of water temperature. Content of the Utility Model

[0004] The purpose of the utility model is to provide an asphalt ductility detection device to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: an asphalt ductility detection device, including:

[0006] A water tank;

[0007] A second linear module, which is placed outside the water tank. A fixed support platform is fixedly connected to the top of the second linear module, and a moving support platform is installed on the moving slide of the second linear module;

[0008] A driving part, which is placed on the side of the water tank. The driving part includes a vertical moving cylinder for driving the second linear module to lift and a horizontal moving cylinder for driving the second linear module to move horizontally;

[0009] Self-testing die, the self-testing die is placed on the top of the platform formed by the fixed support table and the moving support table;

[0010] Scraping part, the scraping part is placed inside the water tank, and the scraping part includes a cleaning scraper for scraping the excess asphalt on the top of the self-testing die.

[0011] Preferably, a fixed plate is fixedly connected to the outside of the water tank, a sliding guide rail is fixedly connected to one side of the fixed plate, a moving slide plate is slidably connected to the outside of the sliding guide rail, the lateral moving cylinder is fixedly connected to the side of the moving slide plate close to the second linear module, and the output end of the lateral moving cylinder is fixedly connected to the fixed plate.

[0012] Preferably, a vertical chute is provided in the middle of the moving slide plate, and the end of the second linear module is slidably connected to the chute.

[0013] Preferably, a limiting chute is provided on one side of the top of the water tank, a sliding rod is slidably connected inside the limiting chute, the sliding rod is slidably connected to the end of the second linear module, the vertical moving cylinder is fixedly connected to the end of the second linear module, and the output end of the vertical moving cylinder is fixedly connected to the bottom of the sliding rod.

[0014] Preferably, the fixed support table and the moving support table pass through the middle of the limiting chute and are slidably connected to the limiting chute.

[0015] Preferably, the self-testing die includes two end dies symmetrically arranged, and two side splicing dies are symmetrically arranged on the sides of the two end dies. Positioning rods for cooperating with the end dies are fixedly connected to the tops of the fixed support table and the moving support table, and limiting rods for limiting the side splicing dies are fixedly connected to the tops of the fixed support table and the moving support table.

[0016] Preferably, a partition plate is fixedly connected inside the water tank, a cleaning space is formed at the end position between the partition plate and the inner wall of the water tank, the cleaning scraper is located above the cleaning space, a first linear module is fixedly connected to the inner wall of the water tank, a cross bar is fixedly connected to the moving slide of the first linear module, and the cleaning scraper is detachably installed on the outside of the cross bar.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows: By setting the horizontal moving cylinder and the vertical moving cylinder, the position of the test mold can be accurately controlled, whether in the horizontal or vertical direction. Thus, the position of the test mold can be flexibly adjusted through the second linear module, enabling it to be placed in water for experiments or for automatic scraping work; Through the cleaning scraper driven by the first linear module and the cross bar, the cleaning work of the asphalt on the top of the test mold can be automatically completed, reducing the need for manual operation, avoiding hand injuries caused by operational errors during manual shoveling, improving the efficiency and safety of the operation. Placing the test mold in water for tensile testing to simulate the influence of the real usage environment on asphalt can more accurately evaluate the performance of the material. There is no need for manual placement in water, reducing contact with the experimental water, improving the convenience and automation performance of the experiment, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the present utility model;

[0019] Figure 2 is a schematic structural diagram of the first linear module of the present utility model;

[0020] Figure 3 is a schematic structural diagram of the driving part of the present utility model;

[0021] Figure 4 is a schematic structural diagram of the fixed support platform of the present utility model;

[0022] Figure 5 is a schematic structural diagram of the self-test mold of the present utility model.

[0023] In the figure: 1. Water tank; 2. Partition board; 3. First linear module; 4. Cross bar; 5. Cleaning scraper; 6. Limit chute; 7. Second linear module; 8. Moving slide plate; 9. Fixed plate; 10. Sliding guide rail; 11. Horizontal moving cylinder; 12. Sliding rod; 13. Vertical moving cylinder; 14. Fixed support platform; 15. Moving support platform; 16. Self-test mold; 17. Positioning rod; 18. End mold; 19. Side splicing mold. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figure 1 、 2, as shown in Figures 3, 4, and 5, the present utility model provides a technical solution: an asphalt ductility testing device, comprising: a water tank 1; a second linear module 7 is slidably disposed outside the water tank 1, one end of the top of the second linear module 7 is fixedly connected to a fixed support platform 14, and a moving support platform 15 is installed on the moving slide of the second linear module 7; a driving part is disposed on the side of the water tank 1, and the driving part includes a vertical moving cylinder 13 for driving the second linear module 7 to lift and a horizontal moving cylinder 11 for driving the second linear module 7 to move horizontally. The linear module includes a bracket with a guide rail, a moving slide slidably disposed on the guide rail, a screw system for driving the moving slide to move, and a motor for driving the screw to rotate. The screw system consists of a screw and a nut, wherein the nut is fixedly connected to the moving slide, and the helical motion of the screw and the nut can convert the rotational motion into a linear motion. Thus, the servo motor drives the screw to rotate, and the screw drives the moving slide to move on the guide rail; a self-test mold 16 is placed on the top of the platform formed by the fixed support platform 14 and the moving support platform 15; a scraping part is disposed inside the water tank 1, and the scraping part includes a cleaning scraper 5 for scraping off the excess asphalt on the top of the self-test mold 16, and an electric heating wire is wound around the outside of the cleaning scraper.

[0026] It should be noted that a drain pipe and a water inlet pipe are provided at the end of the water tank 1 of the present utility model to facilitate the circulation and replacement of water. An electric heater for adjusting the water temperature is fixedly connected to the inner wall of the water tank 1. The fixed support platform 14 and the moving support platform 15 are closed to form a platform. The second linear module 7 is adjusted by the horizontal moving cylinder 11 and the vertical moving cylinder 13. The platform is placed at one end close to the cleaning scraper 5 through the second linear module 7. The heated asphalt is injected into the combined self-test mold 16. After cooling to room temperature, the cleaning scraper 5 is driven by the first linear module 3 and the cross bar 4 to scrape off the excess asphalt on the top of the self-test mold 16 to ensure the flatness of the top of the asphalt. The side splicing mold 19 on the side of the self-test mold 16 is removed, so that the two ends of the self-test mold 16 are in a separated state. Then, the driving part places the platform in the water of the water tank 1 through the vertical moving cylinder 13 and the horizontal moving cylinder 11. The second linear module 7 drives the moving support platform 15 to move forward, and the moving support platform 15 is separated from the fixed support platform 14, thereby stretching and extending the asphalt. The distance when the asphalt is completely broken is observed according to the scale on the top of the water tank 1 and the corresponding position of the moving support platform 15.

[0027] Please refer to Figure 2 , 3 , as shown in the figure, a fixed plate 9 is fixedly connected to the outside of the water tank 1. A sliding guide rail 10 is fixedly connected to one side of the fixed plate 9. A moving slide plate 8 is slidably connected to the outside of the sliding guide rail 10. The horizontal moving cylinder 11 is fixedly connected to the side of the moving slide plate 8 close to the second linear module 7. The output end of the horizontal moving cylinder 11 is fixedly connected to the fixed plate 9. A vertical chute is provided in the middle of the moving slide plate 8, and the end of the second linear module 7 is slidably connected to the chute.

[0028] It should be noted that the sliding guide rail 10 of the present utility model is horizontally and fixedly connected to the outside of the water tank 1. The sliding guide rail 10 is of an isosceles trapezoid structure. The moving slide plate 8 is provided with a corresponding hole, so that the moving slide plate 8 slides on the outside of the sliding guide rail 10. The second linear module 7 is arranged to slide up and down, so that the telescopic movement of the transverse moving cylinder 11 drives the moving position of the moving slide plate 8 on the outside of the sliding guide rail 10, ensuring that the second linear module 7 can move horizontally.

[0029] Please refer to Figure 1 、 2 As shown in the figure, a limit chute 6 is opened on one side of the top of the water tank 1. A sliding rod 12 is slidably connected inside the limit chute 6. The sliding rod 12 is slidably connected to the end of the second linear module 7. The vertical moving cylinder 13 is fixedly connected to the end of the second linear module 7. The output end of the vertical moving cylinder 13 is fixedly connected to the bottom of the sliding rod 12. The fixed support platform 14 and the moving support platform 15 pass through the middle of the limit chute 6 and are slidably connected to the limit chute 6.

[0030] It should be noted that a scale is provided on the side of the limit chute 6 of the present utility model. The moving support platform 15 and the fixed support platform 14 can slide up, down, left and right inside the limit chute 6. The two ends of the second linear module 7 are respectively slidably connected to the moving slide plate 8 and the sliding rod 12. When the vertical height of the second linear module 7 needs to be adjusted, the vertical moving cylinder 13 drives the second linear module 7 to slide up and down between the sliding rod 12 and the moving slide plate 8 through the telescopic movement of the piston rod, so as to adjust the height of the second linear module 7. By adjusting the height of the second linear module 7, the height of the moving support platform 15 and the fixed support platform 14 can be adjusted. Cooperating with the transverse moving cylinder 11, the fixed support platform 14 and the moving support platform 15 can be raised above the water surface or sunk to the bottom of the water. The self-test die 16 can also be placed at the bottom of the cleaning scraper 5 for convenient cleaning.

[0031] Please refer to Figure 4 、 5 As shown in the figure, the self-test die 16 includes two end dies 18 symmetrically arranged. Two side splicing dies 19 are symmetrically arranged on the sides of the two end dies 18. Positioning rods 17 cooperating with the end dies 18 are fixedly connected to the tops of the fixed support platform 14 and the moving support platform 15. Limit rods for limiting the side splicing die 19 are fixedly connected to the tops of the fixed support platform 14 and the moving support platform 15.

[0032] It should be noted that the positioning rod 17 and the end die 18 of the present utility model are both symmetrical about the joint of the moving support table 15 and the fixed support table 14. The self-test die mold 16 is sleeved outside the positioning rod 17, and then the side splicing die 19 is clamped on the side of the side splicing die 19 through the limiting rod, so as to form a cavity with a groove at the top by the self-test die mold 16. The combined self-test die mold 16 is placed at the bottom of the cleaning scraper 5 through the driving part, and the top is processed by the cleaning scraper 5. After the processing is completed, the side splicing dies 19 on both sides are removed, and the self-test die mold 16 is placed in the water of the water tank 1 through the horizontal moving cylinder 11 and the vertical moving cylinder 13. The two end dies 18 are driven to separate by the second linear module 7, so as to perform stretching and complete the ductility detection.

[0033] Please refer to Figure 1 、 2 As shown in the figure, a partition plate 2 is fixedly connected inside the water tank 1. The partition plate 2 and the inner wall of the water tank 1 define a cleaning space at the end position. The cleaning scraper 5 is located above the cleaning space. A first linear module 3 is fixedly connected to the inner wall of the water tank 1. A cross bar 4 is fixedly connected to the moving slide of the first linear module 3. The cleaning scraper 5 is detachably installed outside the cross bar 4.

[0034] It should be noted that the cleaning scraper 5 of the present utility model is installed outside the cross bar 4 through a fastening bolt, and the angle of the cleaning scraper 5 can be adjusted by loosening and tightening the fastening bolt. The self-test die mold 16 filled with asphalt and cooled is placed at the bottom of the cleaning scraper 5. The vertical moving cylinder 13 adjusts the height of the self-test die mold 16, and the first linear module 3 drives the cleaning scraper 5 to perform scraping and cleaning work on the top of the self-test die mold 16, avoiding the damage to the hands caused by manual cleaning.

[0035] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "center", "both ends", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 a limitation to the present utility model.

[0036] In addition, the terms "first", "second", "third", and "fourth" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third", and "fourth" may explicitly or implicitly include at least one of the features.

[0037] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "setting", "connection", "fixation", "swivel connection", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0038] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An asphalt ductility testing device, characterized in that: Including: Pool tank (1); Second linear module (7), the second linear module (7) is placed outside the pool tank (1), a fixed support platform (14) is fixedly connected to the top of the second linear module (7), and a moving support platform (15) is installed on the moving slide of the second linear module (7); Drive part, the drive part is placed on the side of the pool tank (1), and the drive part includes a vertical moving cylinder (13) for driving the second linear module (7) to lift and a horizontal moving cylinder (11) for driving the second linear module (7) to move horizontally; Self-testing die (16), the self-testing die (16) is placed on the top of the platform formed by the fixed support platform (14) and the moving support platform (15); Scraping part, the scraping part is placed inside the pool tank (1), and the scraping part includes a cleaning scraper (5) for scraping off the excess asphalt on the top of the self-testing die (16).

2. The asphalt ductility testing device according to claim 1, wherein: A fixed plate (9) is fixedly connected to the outside of the pool tank (1), a sliding guide rail (10) is fixedly connected to one side of the fixed plate (9), a moving slide plate (8) is slidably connected to the outside of the sliding guide rail (10), the horizontal moving cylinder (11) is fixedly connected to the side of the moving slide plate (8) close to the second linear module (7), and the output end of the horizontal moving cylinder (11) is fixedly connected to the fixed plate (9).

3. The asphalt ductility testing device according to claim 2, characterized in that: There is a vertical chute in the middle of the moving slide plate (8), and the end of the second linear module (7) is slidably connected to the chute.

4. An asphalt ductility testing device according to claim 1, characterized in that: A limit chute (6) is opened on one side of the top of the pool tank (1), a sliding rod (12) is slidably connected to the inside of the limit chute (6), the sliding rod (12) is slidably connected to the end of the second linear module (7), the vertical moving cylinder (13) is fixedly connected to the end of the second linear module (7), and the output end of the vertical moving cylinder (13) is fixedly connected to the bottom of the sliding rod (12).

5. The asphalt ductility detection device according to claim 4, wherein: The fixed support platform (14) and the moving support platform (15) pass through the middle of the limit chute (6) and are slidably connected to the limit chute (6).

6. The asphalt ductility testing device according to claim 1, wherein: The self-testing die (16) includes two symmetrically arranged end dies (18), and two side splicing dies (19) are symmetrically arranged on the sides of the two end dies (18). Positioning rods (17) for cooperating with the end dies (18) are fixedly connected to the tops of the fixed support platform (14) and the moving support platform (15), and limit rods for limiting the side splicing dies (19) are fixedly connected to the tops of the fixed support platform (14) and the moving support platform (15).

7. An asphalt ductility testing device according to claim 1, characterized in that: A partition plate (2) is fixedly connected to the inside of the pool tank (1), a cleaning space is formed at the end position between the partition plate (2) and the inner wall of the pool tank (1), the cleaning scraper (5) is located above the cleaning space, a first linear module (3) is fixedly connected to the inner wall of the pool tank (1), a cross bar (4) is fixedly connected to the moving slide of the first linear module (3), and the cleaning scraper (5) is detachably installed on the outside of the cross bar (4).

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