Asphalt and asphalt mixture ultraviolet aging oven test device

Abstract

The utility model discloses an asphalt and asphalt mixture ultraviolet aging oven test device, and relates to the technical field of aging oven test equipment.The asphalt and asphalt mixture ultraviolet aging oven test device comprises a test box and supporting legs fixedly connected to the bottom end of the test box, a test turnover mechanism is arranged in the test box, and a fixed limiting mechanism is arranged on the test turnover mechanism; an ultraviolet lamp is started to irradiate and age a sample, a motor is started to drive a rotating rod to rotate, and when the rotating rod rotates, a placement table can be driven to rotate, so that the fixed sample is driven to turn over, and the reverse side of the sample can be irradiated by the ultraviolet lamp, so that the sample is irradiated more uniformly; and water can be sprayed to the sample through a spraying pipe, so that the external environment is simulated, a hydraulic cylinder is started to drive a rotating rod to move upwards through sliding connection between a sliding block and a sliding rod, so that the distance between the sample and an ultraviolet lamp can be adjusted, the irradiation aging of the sample is accelerated, and the speed is increased.

Description

Technical Field

[0001] The present application relates to the technical field of aging chamber test equipment, and in particular to an ultraviolet aging chamber test device for asphalt and asphalt mixture. Background Art

[0002] In areas with high altitudes, the strong ultraviolet radiation causes the aging of asphalt pavement to be very prominent because the atmosphere absorbs and reflects less sunlight radiation. The viscosity of the surface asphalt film decreases after aging under ultraviolet radiation, and the adhesion to the aggregate becomes weaker. As the degree of aging deepens, the asphalt will fall off the surface of the aggregate, resulting in pits and other diseases, which seriously affect the road performance of the asphalt pavement and reduce the service life of the highway. In addition, asphalt mixtures will gradually become brittle under the action of ultraviolet aging. Under low temperature conditions, the failure strain is reduced, and thermal shrinkage cracks are easily generated, causing cracks in the road surface. Under natural conditions, the ultraviolet aging cycle of asphalt is as long as 18 to 30 months, which takes a long time.

[0003] For example, the asphalt and asphalt mixture UV aging chamber test device disclosed in Chinese patent CN216350225U mainly solves the problems of easy use, uniform sample irradiation, multi-condition coupled aging test, more realistic simulation of the natural aging process, and more accurate data.

[0004] Although the sample table in the test device can drive the sample to rotate, the sample in contact with one side of the sample table cannot be irradiated by the ultraviolet lamp, and cannot receive the spray water in the first time, so the rate of the aging process will be reduced, thereby reducing the efficiency of the overall aging test process. Utility Model Content

[0005] The purpose of the utility model is to solve or at least alleviate the problems existing in the prior art.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A UV aging chamber test device for asphalt and asphalt mixture, comprising a test chamber and a support leg fixedly connected to the bottom of the test chamber, a test flip mechanism is arranged inside the test chamber, a fixed limit mechanism is arranged on the test flip mechanism, the test flip mechanism comprises a slide groove opened on the outer wall of the test chamber, and a slide rod is fixedly connected to the inner wall of the slide groove;

[0008] The outer wall of the sliding rod is slidably connected to a sliding block, the bottom end of the sliding block is fixedly connected to a fixing plate, the top of the fixing plate is fixedly connected to a motor, the output end of the motor is fixedly connected to a rotating rod, the outer wall of the sliding block is provided with a first through hole, the outer wall of the rotating rod is rotatably connected to the inner wall of the first through hole, the bottom end of the inner wall of the test box is fixedly connected to a hydraulic cylinder, the outer wall of the output end of the hydraulic cylinder is provided with a second through hole, the outer wall of the rotating rod is rotatably connected to the inner wall of the second through hole, the top end of the inner wall of the test box is fixedly connected to an ultraviolet lamp, the top end of the test box is provided with a through groove, and the inner wall of the through groove is fixedly connected to a spray pipe.

[0009] By adopting the above technical solution, the sample can be turned over so that the sample is irradiated by the ultraviolet light more evenly, thereby improving the aging rate.

[0010] Optionally, the fixed limiting mechanism includes a placing table fixedly connected to the end of the rotating rod away from the motor, a sliding hole is opened at the top of the placing table, a pull rod is slidably connected to the inner wall of the sliding hole, the top of the pull rod is fixedly connected to a connecting plate, the bottom end of the connecting plate is fixedly connected to a spring, the end of the spring away from the connecting plate is fixedly connected to the top of the placing table, and the end of the pull rod away from the connecting plate is fixedly connected to the limiting plate.

[0011] By adopting the above technical solution, the sample can be fixed and limited, thereby ensuring the stability of the sample during the rotation process.

[0012] Optionally, there are two hydraulic cylinders, which are distributed on both sides of the inner wall of the test box in a left-right symmetrical structure.

[0013] By adopting the above technical solution, the height of the sample can be adjusted, thereby adjusting the distance between the sample and the ultraviolet lamp.

[0014] Optionally, there are two rotating rods, and the rotating rods are symmetrically distributed inside the test box at left and right ends.

[0015] By adopting the above technical solution, the two placement tables can be supported, so that the two sides of the sample can be clamped and supported.

[0016] Optionally, the inner wall of the slide groove starting from the outer wall of the test chamber fits in place with the outer wall of the slider.

[0017] By adopting the above technical solution, the slider can be limited and guided, thereby maintaining the stability of the slider during movement.

[0018] Optionally, there are two placement tables, which are distributed on both sides of the test box in a left-right symmetrical structure.

[0019] By adopting the above technical solution, the two sides of the sample can be clamped and fixed synchronously, thereby facilitating the turning of the sample.

[0020] Optionally, the inner wall of the sliding hole opened at the top of the placing table fits snugly with the outer wall of the pull rod.

[0021] By adopting the above technical solution, the pull rod can be limited and guided, thereby improving the stability of the pull rod during movement.

[0022] Optionally, there are two pull rods, which are distributed on the top of the limiting plate in a left-right symmetrical structure.

[0023] By adopting the above technical solution, force can be applied synchronously on the left and right sides of the limiting plate, thereby improving the fixing stability of the limiting plate.

[0024] In summary, the beneficial effects of this application are as follows:

[0025] 1. This application tests the coordination between the structures in the flipping mechanism. First, the sample is fixed on the placement table, and then the ultraviolet lamp can be started to irradiate and age the sample. When the sample needs to be flipped, the motor can be started, and its output end can drive the rotating rod to rotate. When the rotating rod rotates, the placement table can be driven to rotate, thereby driving the fixed sample to flip so that the back side can also be irradiated by the ultraviolet lamp, thereby irradiating the sample more evenly. The sample can also be sprayed with water through the spray pipe to simulate the external environment. By starting the hydraulic cylinder, the rotating rod can be driven upward through the sliding connection between the slider and the slide rod, thereby moving upward. In this way, the distance between the sample and the ultraviolet lamp can be adjusted, the irradiation and aging of the sample can be accelerated, and the rate can be increased.

[0026] 2. The present application adopts the coordination setting between the structures in the fixed limit mechanism. First, the connecting plate is pulled upward to move, thereby driving the pull rod to move upward. At the same time, the pull plate drives the spring to stretch. At this time, the pull rod will drive the limit plate to move upward. Then, the sample is placed on the placement table, and the connecting plate is released. The spring can rebound and reset, driving the limit plate to clamp and fix the sample, thereby completing the clamping effect on the sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall three-dimensional structure of this application;

[0028] Figure 2 It is a schematic diagram of the internal structure of this application;

[0029] Figure 3 It is a schematic diagram of the structure of the test flipping mechanism of this application;

[0030] Figure 4It is a structural schematic diagram of the fixed limiting mechanism of this application.

[0031] Explanation of the reference numerals: 1. test box; 2. supporting leg; 31. test flipping mechanism; 311. sliding rod; 312. sliding block; 313. fixing plate; 314. motor; 315. rotating rod; 316. hydraulic cylinder; 317. ultraviolet lamp; 318. spray pipe; 32. fixed limiting mechanism; 321. placing table; 322. pulling rod; 323. connecting plate; 324. spring; 325. limiting plate. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] like Figure 1-4 As shown, the utility model provides a technical solution: an asphalt and asphalt mixture ultraviolet aging chamber test device, comprising a test chamber 1;

[0034] A support leg 2 is fixedly connected to the bottom end of the test box 1, and a test flip mechanism 31 is arranged inside the test box 1. A fixed limiting mechanism 32 is arranged on the test flip mechanism 31. The test flip mechanism 31 includes a slide groove opened on the outer wall of the test box 1, and a slide rod 311 is fixedly connected to the inner wall of the slide groove.

[0035] The outer wall of the slide bar 311 is slidably connected to a slide block 312, and the inner wall of the slide groove starting from the outer wall of the test box 1 fits well with the outer wall of the slide block 312, so that the slide block 312 can be limited and guided, thereby maintaining the stability of the slide block 312 during movement; the bottom end of the slide block 312 is fixedly connected to a fixing plate 313, the top of the fixing plate 313 is fixedly connected to a motor 314, the output end of the motor 314 is fixedly connected to a rotating rod 315, a first through hole is provided on the outer wall of the slide block 312, and the outer wall of the rotating rod 315 is rotatably connected to the inner wall of the first through hole, a hydraulic cylinder 316 is fixedly connected to the bottom end of the inner wall of the test box 1, a second through hole is provided on the outer wall of the output end of the hydraulic cylinder 316, and the outer wall of the rotating rod 315 is rotatably connected to the inner wall of the second through hole, an ultraviolet lamp 317 is fixedly connected to the top of the inner wall of the test box 1, a through groove is provided at the top of the test box 1, and a spray pipe 318 is fixedly connected to the inner wall of the through groove.

[0036] Furthermore, there are two hydraulic cylinders 316 , which are arranged on both sides of the inner wall of the test box 1 in a bilaterally symmetrical structure, so that the height of the sample can be adjusted, thereby adjusting the distance between the sample and the ultraviolet lamp 317 .

[0037] Furthermore, there are two rotating rods 315 , which are symmetrically distributed inside the test box 1 at the left and right ends, so that the two placement tables 321 can be supported, thereby clamping and supporting both sides of the sample.

[0038] The fixed limiting mechanism 32 includes a placing table 321 fixedly connected to the end of the rotating rod 315 away from the motor 314, a sliding hole is opened at the top of the placing table 321, and a pull rod 322 is slidably connected to the inner wall of the sliding hole. There are two pull rods 322, and the pull rods 322 are distributed at the top of the limiting plate 325 in a left-right symmetrical structure. In this way, force can be applied synchronously on the left and right sides of the limiting plate 325, thereby improving the fixing stability of the limiting plate 325. The top of the pull rod 322 is fixedly connected to a connecting plate 323, and the bottom of the connecting plate 323 is fixedly connected to a spring 324. The end of the spring 324 away from the connecting plate 323 is fixedly connected to the top of the placing table 321, and the end of the pull rod 322 away from the connecting plate 323 is fixedly connected to the limiting plate 325; the spring 324 is sleeved on the pull rod 322.

[0039] Furthermore, there are two placement tables 321 , which are arranged on both sides of the interior of the test box 1 in a bilaterally symmetrical structure, so that both sides of the sample can be clamped and fixed synchronously, thereby facilitating the flipping of the sample.

[0040] Furthermore, the inner wall of the sliding hole opened at the top of the placement platform 321 fits in with the outer wall of the pull rod 322, so that the pull rod 322 can be limited and guided, thereby improving the stability of the pull rod 322 during the movement.

[0041] The implementation principle of the present application is as follows: first, fix the sample on the placement table 321, then start the ultraviolet lamp 317 to irradiate and age the sample, and then when the sample needs to be turned over, start the motor 314, and its output end can drive the rotating rod 315 to rotate, and when the rotating rod 315 rotates, it can drive the placement table 321 to rotate, thereby driving the fixed sample to turn over, so that the reverse side can also be irradiated by the ultraviolet lamp 317, so that the sample is irradiated more evenly, and the sample can also be sprayed with water through the spray pipe 318 to simulate the external environment, and the rotating rod 315 can be driven upward through the sliding connection between the slider 312 and the slide bar 311 by starting the hydraulic cylinder 316, so as to move upward, so that the distance between the sample and the ultraviolet lamp 317 can be adjusted, and the irradiation aging of the sample can be accelerated, thereby increasing the rate;

[0042] First, pull the connecting plate 323 upward to move it, thereby driving the pull rod 322 upward. At the same time, the pull plate 323 drives the spring 324 to stretch. At this time, the pull rod 322 will drive the limit plate 325 to move upward. Then, place the sample on the placement table 321, release the connecting plate 323, and the spring 324 can rebound and reset, driving the limit plate 325 to clamp and fix the sample, thereby completing the clamping effect on the sample.

[0043] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An asphalt and asphalt mixture ultraviolet aging chamber test device, comprising a test chamber (1) and a support leg (2) fixedly connected to the bottom end of the test chamber (1), characterized in that: A test flip mechanism (31) is arranged inside the test box (1), a fixed limit mechanism (32) is arranged on the test flip mechanism (31), and the test flip mechanism (31) comprises a slide groove provided on the outer wall of the test box (1), and a slide rod (311) is fixedly connected to the inner wall of the slide groove; The outer wall of the sliding rod (311) is slidably connected to a sliding block (312), the bottom end of the sliding block (312) is fixedly connected to a fixing plate (313), the top end of the fixing plate (313) is fixedly connected to a motor (314), the output end of the motor (314) is fixedly connected to a rotating rod (315), the outer wall of the sliding block (312) is provided with a first through hole, the outer wall of the rotating rod (315) is rotatably connected to the inner wall of the first through hole, the bottom end of the inner wall of the test box (1) is fixedly connected to a hydraulic cylinder (316), the outer wall of the output end of the hydraulic cylinder (316) is provided with a second through hole, the outer wall of the rotating rod (315) is rotatably connected to the inner wall of the second through hole, the top end of the inner wall of the test box (1) is fixedly connected to an ultraviolet lamp (317), the top end of the test box (1) is provided with a through slot, the inner wall of the through slot is fixedly connected to a spray pipe (318).

2. The asphalt and asphalt mixture ultraviolet aging chamber test device according to claim 1, characterized in that: The fixed limiting mechanism (32) comprises a placing table (321) fixedly connected to an end of the rotating rod (315) away from the motor (314); a sliding hole is provided at the top of the placing table (321); a pull rod (322) is slidably connected to the inner wall of the sliding hole; a connecting plate (323) is fixedly connected to the top of the pull rod (322); a spring (324) is fixedly connected to the bottom of the connecting plate (323); an end of the spring (324) away from the connecting plate (323) is fixedly connected to the top of the placing table (321); and an end of the pull rod (322) away from the connecting plate (323) is fixedly connected to the limiting plate (325).

3. The asphalt and asphalt mixture ultraviolet aging chamber test device according to claim 1, characterized in that: There are two hydraulic cylinders (316), which are distributed on both sides of the inner wall of the test box (1) in a bilaterally symmetrical structure.

4. The asphalt and asphalt mixture ultraviolet aging chamber test device according to claim 1, characterized in that: There are two rotating rods (315), and the rotating rods (315) are symmetrically distributed inside the test box (1) at left and right ends.

5. The asphalt and asphalt mixture ultraviolet aging chamber test device according to claim 1, characterized in that: The inner wall of the slide groove starting from the outer wall of the test box (1) fits snugly with the outer wall of the slide block (312).

6. The asphalt and asphalt mixture ultraviolet aging chamber test device according to claim 2, characterized in that: There are two placement tables (321), and the placement tables (321) are distributed on both sides of the interior of the test box (1) in a bilaterally symmetrical structure.

7. The asphalt and asphalt mixture ultraviolet aging chamber test device according to claim 2, characterized in that: The inner wall of the sliding hole opened at the top of the placement platform (321) fits snugly with the outer wall of the pull rod (322).

8. The asphalt and asphalt mixture ultraviolet aging chamber testing device according to claim 2, characterized in that: There are two pull rods (322), and the pull rods (322) are distributed on the top of the limiting plate (325) in a bilaterally symmetrical structure.

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