Strong ultraviolet large temperature difference coupling accelerated asphalt aging test equipment

Abstract

The utility model relates to bitumen performance test technical field discloses a kind of strong ultraviolet big temperature difference coupling accelerates bitumen aging test equipment, including experimental main body box, the multiple evenly distributed sample plate of experimental main body box inside sliding connection has, the left side of the sample plate is equipped with sliding slot, the left side inside of the sample plate is slidingly connected with fixed pin, the fixed pin rear portion is equipped with fixed hole, the experimental main body box inside is equipped with multiple evenly distributed moving groove, cooling equipment is installed in the right side inside of the experimental main body box.The utility model in this paper, after placing bitumen steadily on sample plate, if need to adjust the height of sample plate according to test requirement, fixed pin is pulled out from corresponding fixed hole, and the limiting of sample plate is removed;Subsequently, the sample plate is moved, and it is adjusted to the preset height position, after position is determined, fixed pin is inserted into corresponding fixed hole again, so as to complete firm fixation to sample plate.

Description

Technical Field

[0001] This utility model relates to the field of asphalt performance testing technology, and in particular to a strong ultraviolet large temperature difference coupled accelerated asphalt aging test device. Background Technology

[0002] In special regions such as high altitude, cold climate, and deserts, the long-term coupling of strong ultraviolet radiation and large temperature differences accelerates the aging of asphalt pavements. Existing aging test equipment is unable to accurately simulate this complex environment and cannot provide a reliable basis for evaluating the anti-aging performance of asphalt and for road engineering design.

[0003] The relevant asphalt ultraviolet aging test equipment generally consists of a test chamber, an adjustable ultraviolet light source, a temperature heating device, and a sample placement frame. It uses an ultraviolet light source to simulate ultraviolet radiation, and the heating device maintains the set temperature inside the chamber, so that the asphalt sample can complete the aging process in this environment.

[0004] Typically, while strong ultraviolet light coupled with large temperature difference can adjust the intensity of ultraviolet light, it lacks a structure that allows for control over the effect of ultraviolet light on asphalt by changing the irradiation distance. Furthermore, after the aging test is completed, it can only achieve automatic cooling of the equipment. Therefore, a strong ultraviolet light coupled with large temperature difference for accelerating asphalt aging test is proposed to address these issues. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a strong ultraviolet large temperature difference coupled accelerated asphalt aging test device, which aims to improve the irradiation effect at different distances and the lack of automatic cooling function in the existing technology.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A strong ultraviolet large temperature difference coupled accelerated asphalt aging test device includes an experimental main box. Multiple uniformly distributed sample plates are slidably connected to the inner side of the experimental main box. A sliding groove is opened on the left side of the sample plate. A fixing pin is slidably connected to the inner side of the left side of the sample plate. A fixing hole is opened at the rear of the fixing pin. Multiple uniformly distributed moving grooves are opened on the inner side of the experimental main box. A cooling device is installed inside the right side of the experimental main box.

[0008] As a further description of the above technical solution:

[0009] The cooling device includes a cold air box, which is fixedly connected to the right side of the experimental main body box. Fan bases are fixedly connected to both the front and rear sides of the experimental main body box. A rotating rod is fixedly connected to the left side of the fan base. A rotating block is rotatably connected to the outer periphery of the rotating rod. A fan is fixedly connected to the outer periphery of the rotating block.

[0010] As a further description of the above technical solution:

[0011] The top of the main experimental box is abutted against a sealed box cover, and an ultraviolet lamp is fixedly connected inside the sealed box cover;

[0012] As a further description of the above technical solution:

[0013] The rear of the main experimental box is fixedly connected to multiple evenly distributed fixed blocks 1. Each fixed block 1 is fixedly connected to a movable rod 2, and the movable rod 2 is rotatably connected to the fixed block 2.

[0014] As a further description of the above technical solution:

[0015] A control box is fixedly connected to the front of the main experimental box.

[0016] As a further description of the above technical solution:

[0017] The bottom of the sealed box cover is provided with an ultraviolet lamp slot;

[0018] As a further description of the above technical solution:

[0019] A heat insulation plate is fixedly connected to the middle of the inner side of the sealed box cover. A movable rod is rotatably connected inside the heat insulation plate. A rotating plate is fixedly connected to the outer periphery of the movable rod.

[0020] As a further description of the above technical solution:

[0021] The sealed box cover is fixedly connected to the rear of the second fixing block.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, after the asphalt is placed stably on the sample plate, if it is necessary to adjust the height of the sample plate according to the test requirements, the fixing pin is pulled out from the corresponding fixing hole to release the limitation on the sample plate; then the sample plate is moved to adjust it to the preset height position. After the position is determined, the fixing pin is reinserted into the corresponding fixing hole to complete the firm fixation of the sample plate and ensure its stability during the test, thereby achieving the irradiation effect at different distances.

[0024] 2. In this utility model, when it is necessary to cool down the asphalt, the rotating plate rotates under the drive of the movable rod, which opens multiple vents on the insulation plate. At this time, the cold air box starts to deliver cold air, and the fan starts simultaneously to blow the cold air into the main experimental box quickly and evenly, thereby achieving efficient cooling of the asphalt and solving the problem of no automatic cooling function. Attached Figure Description

[0025] Figure 1This is a three-dimensional schematic diagram of a strong ultraviolet large temperature difference coupled accelerated asphalt aging test device proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the sample plate of a strong ultraviolet large temperature difference coupled accelerated asphalt aging test device proposed in this utility model.

[0027] Figure 3 This is a schematic diagram of the insulation plate of a strong ultraviolet large temperature difference coupled accelerated asphalt aging test equipment proposed in this utility model.

[0028] Figure 4 This is a schematic diagram of the structure of the fixing block 2 of the strong ultraviolet large temperature difference coupled accelerated asphalt aging test equipment proposed in this utility model;

[0029] Figure 5 This is a schematic diagram of the fan structure of a strong ultraviolet large temperature difference coupled accelerated asphalt aging test device proposed in this utility model.

[0030] Legend:

[0031] 1. Main experimental chamber; 2. Sealed chamber lid; 3. Ultraviolet lamp trough; 4. Ultraviolet lamp; 5. Sample plate; 6. Slide groove; 7. Fixing pin; 8. Fixing hole; 9. Moving groove; 10. Insulation plate; 11. Rotating plate; 12. Movable rod one; 13. Cold air chamber; 14. Rotating block; 15. Fan; 16. Rotating rod; 17. Fan base; 18. Fixing block one; 19. Fixing block two; 20. Movable rod two; 21. Control box. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figure 1 - Figure 2This utility model provides an embodiment of a strong ultraviolet large temperature difference coupled accelerated asphalt aging test device, comprising an experimental main body box 1. Multiple uniformly distributed sample plates 5 are slidably connected to the inner side of the experimental main body box 1. A sliding groove 6 is provided on the left side of each sample plate 5. A fixing pin 7 is slidably connected to the inner side of the left side of each sample plate 5. A fixing hole 8 is provided at the rear of the fixing pin 7. Multiple uniformly distributed moving grooves 9 are provided on the inner side of the experimental main body box 1. The multiple sample plates 5 are uniformly distributed and slidably connected to the box body. The sample plates 5 can slide along the moving grooves 9 on the inner side of the experimental main body box 1 to adjust their positions. The sliding groove 6 on the left side of each sample plate 5 provides sliding space for the fixing pin 7. When the fixing pin 7 slides inside the left side of the sample plate 5, its rear fixing hole 8 can cooperate with the corresponding structure on the experimental main body box 1 to realize the sliding of the sample plate. 5. After being moved, the positioning is fixed to ensure that the sample plate 5 remains stable during the test. A cooling device is installed inside the right side of the main experimental box 1. The top of the main experimental box 1 is abutted by a sealing box cover 2. An ultraviolet lamp 4 is fixedly connected inside the sealing box cover 2. Multiple evenly distributed fixing blocks 18 are fixedly connected to the rear of the main experimental box 1. Each fixing block 18 is fixedly connected to a movable rod 20. The movable rod 20 is rotatably connected to a fixing block 29. Multiple evenly distributed fixing blocks 18 are fixedly connected to the rear of the main box 1. Each fixing block 18 is fixedly connected to the movable rod 20, and the end of the movable rod 20 away from the fixing block 18 is rotatably connected to the fixing block 29. Through this structural cooperation, the flexible rotation and adjustment of related components can be realized. A control box 21 is fixedly connected to the front of the main experimental box 1.

[0034] Reference Figure 1 and Figure 5The cooling device includes a cold air chamber 13, which is fixedly connected to the right side of the interior of the main experimental chamber 1. Fan bases 17 are fixedly connected to both the front and rear sides of the interior of the main experimental chamber 1. A rotating rod 16 is fixedly connected to the left side of the fan base 17, and a rotating block 14 is rotatably connected to the outer circumference of the rotating rod 16. A fan 15 is fixedly connected to the outer circumference of the rotating block 14. This structural combination allows for efficient cooling. To facilitate the delivery and diffusion of cold air, the bottom of the sealed box cover 2 has an ultraviolet lamp slot 3. An insulation plate 10 is fixedly connected to the middle of the inner side of the sealed box cover 2. A movable rod 12 is rotatably connected inside the insulation plate 10. A rotating plate 11 is fixedly connected to the outer periphery of the movable rod 12. The ultraviolet lamp slot 3 at the bottom of the sealed box cover 2 provides installation and protection space for the ultraviolet lamp 4. The insulation plate 10 is fixedly connected to the middle of the inner side of the sealed box cover 2. The movable rod 12 is rotatably connected inside the insulation plate 10. A rotating plate 11 is fixedly connected to the outer periphery of the movable rod 12. The rotating plate 11 can be adjusted in position as the movable rod 12 rotates. Together with the insulation plate 10, it achieves flexible partitioning of the internal space and assists in temperature control. The sealed box cover 2 is fixedly connected to the rear of the fixing block 19.

[0035] Working principle: After the asphalt sample is placed stably on the sample plate 5, the position of the sample plate can be adjusted according to the specific requirements of the test, such as the distance of ultraviolet irradiation. During operation, first pull the fixing pin 7 out of the corresponding fixing hole 8 to release the fixing restriction on the sample plate 5. At this time, the sample plate 5 can slide flexibly along the moving groove 9 on the inner side of the test body box 1. After the sample plate 5 is adjusted to the preset designated position, the fixing pin 7 is reinserted into the corresponding fixing hole 8 to firmly fix the sample plate 5 and ensure that it will not be displaced during the test.

[0036] After the sample plate is fixed, the sealing box cover 2 is tightly closed. The ultraviolet lamp is started through the operation control box 21. The ultraviolet lamp will continuously irradiate the asphalt sample on the sample plate to simulate a strong ultraviolet environment for accelerated aging experiments.

[0037] Once the aging experiment is completed according to the preset procedure, if it is necessary to rapidly cool down the asphalt sample, the rotating plate 11 can be rotated around the movable rod to open the multiple vents on the insulation plate 10. Then, the cold air chamber 13 is turned on and begins to output cold air. At the same time, the fan starts to rotate with the cooperation of the rotating block 14 and the rotating rod 16. The fan's airflow quickly and evenly delivers the cold air into the main experimental chamber 1, thereby achieving efficient cooling of the asphalt sample inside the chamber.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A strong ultraviolet large temperature difference coupled accelerated asphalt aging test device, comprising a main experimental chamber (1), characterized in that: Multiple uniformly distributed sample plates (5) are slidably connected to the inner side of the experimental main body box (1). A sliding groove (6) is provided on the left side of the sample plate (5). A fixing pin (7) is slidably connected inside the left side of the sample plate (5). A fixing hole (8) is provided at the rear of the fixing pin (7). Multiple uniformly distributed moving grooves (9) are provided inside the inner side of the experimental main body box (1). A cooling device is installed inside the right side of the experimental main body box (1).

2. The strong ultraviolet large temperature difference coupled accelerated asphalt aging test equipment according to claim 1, characterized in that: The cooling device includes a cold air box (13), which is fixedly connected to the right side of the experimental main body box (1). Fan bases (17) are fixedly connected to both the front and rear sides of the experimental main body box (1). A rotating rod (16) is fixedly connected to the left side of the fan base (17). A rotating block (14) is rotatably connected to the outer periphery of the rotating rod (16). A fan (15) is fixedly connected to the outer periphery of the rotating block (14).

3. The strong ultraviolet large temperature difference coupled accelerated asphalt aging test equipment according to claim 1, characterized in that: The top of the experimental main box (1) is abutted by a sealed box cover (2), and an ultraviolet lamp (4) is fixedly connected inside the sealed box cover (2).

4. The strong ultraviolet large temperature difference coupled accelerated asphalt aging test equipment according to claim 1, characterized in that: The experimental main body box (1) is fixedly connected to a plurality of evenly distributed fixed blocks (18) at the rear. The fixed blocks (18) are fixedly connected to movable rods (20), and the movable rods (20) are rotatably connected to fixed blocks (19).

5. The strong ultraviolet large temperature difference coupled accelerated asphalt aging test equipment according to claim 1, characterized in that: The experimental main body box (1) is fixedly connected to the front of the control box (21).

6. The strong ultraviolet large temperature difference coupled accelerated asphalt aging test equipment according to claim 3, characterized in that: The bottom of the sealed box cover (2) is provided with an ultraviolet lamp groove (3).

7. The strong ultraviolet large temperature difference coupled accelerated asphalt aging test equipment according to claim 3, characterized in that: A heat insulation plate (10) is fixedly connected to the middle of the inner side of the sealed box cover (2). A movable rod (12) is rotatably connected inside the heat insulation plate (10). A rotating plate (11) is fixedly connected to the outer periphery of the movable rod (12).

8. The strong ultraviolet large temperature difference coupled accelerated asphalt aging test equipment according to claim 3, characterized in that: The sealing box cover (2) is fixedly connected to the rear of the fixing block two (19).

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