Recycled asphalt pavement testing device

Abstract

The utility model discloses a recycled asphalt pavement testing device, which relates to the technical field of asphalt pavement testing, solves the problem that the tested asphalt is inconvenient to clean out quickly after the sampled asphalt is tested, and comprises a bottom box, the top of the bottom box is fixedly connected with a protection box, and a moving mechanism is arranged in an inner cavity of the protection box. According to the asphalt pavement anti-rutting test device, by arranging the test frame, sampled asphalt can be conveniently laid, by arranging the test mechanism, the anti-rutting performance of the laid pavement can be tested, by arranging the fan heater, the asphalt pavement can be heated, and the asphalt pavement can be subjected to a high-temperature softening test; through cooperation of a limiting rod, a limiting hole, a rotating disc, a limiting ring, a compressed spring and a rotating shaft, the test frame can be supported and limited, meanwhile, the test frame can be turned over after a test is completed, asphalt to be tested can be conveniently and rapidly poured out, and discharging is convenient.

Description

Technical Field

[0001] This utility model relates to the field of asphalt pavement testing technology, and in particular to a recycled asphalt pavement testing device. Background Technology

[0002] Asphalt pavement refers to various types of pavement constructed by incorporating road asphalt materials into mineral materials. Asphalt binders enhance the ability of paving aggregates to resist damage from traffic and natural factors, resulting in a smooth, dust-free, impermeable, and durable surface. Therefore, asphalt pavement is one of the most widely used high-grade pavements in road construction. After paving, asphalt pavement needs performance testing to ensure its continued usability. This requires testing equipment. Currently, most testing methods involve sampling asphalt testing. While this method meets normal testing requirements, it still has certain drawbacks in practical use. For example, after the sampled asphalt is tested, it is difficult to quickly remove the tested asphalt, resulting in slow cleaning speed, affecting future use, and low testing efficiency. Therefore, a recycled asphalt pavement testing device is proposed. Utility Model Content

[0003] To address the problem of the difficulty in quickly cleaning up the asphalt sampled after the asphalt test, this invention provides a recycled asphalt pavement testing device.

[0004] This utility model provides a testing device for recycled asphalt pavement, which adopts the following technical solution:

[0005] A testing device for recycled asphalt pavement includes a base box, a protective box fixedly connected to the top of the base box, a moving mechanism inside the protective box, a testing mechanism at the bottom of the moving mechanism, a heater fixedly installed on the left side of the protective box's inner cavity, and rotating shafts rotatably connected to both sides of the protective box's inner cavity via bearings. A test frame is fixedly connected to one side of the two rotating shafts facing each other. A turntable is fixedly connected to the right side of the rotating shaft, penetrating the protective box. A through hole is opened at the top right side of the turntable, and a limit rod is movably connected to the inner surface of the through hole. Limiting holes for use with the limit rod are opened at the upper and lower positions on the right side of the protective box. The outer surface of the limit rod is inserted into the inner surface of the limiting hole. A limit ring is fixedly connected to the outer surface of the limit rod, and a compression spring is movably connected to the outer surface of the limit rod between the limit ring and the turntable.

[0006] By adopting the above technical solution, the test frame can be supported and limited, and the test frame can be flipped after the test, so as to quickly pour out the asphalt and facilitate material discharge.

[0007] Optionally, the moving mechanism includes a servo motor, which is fixedly installed on the top of the left side of the protective box. The output end of the servo motor is fixedly connected to a threaded rod. The right side of the threaded rod is rotatably connected to the right side of the inner cavity of the protective box through a bearing. A threaded sleeve is threadedly connected to the outer surface of the threaded rod.

[0008] By adopting the above technical solution, the testing mechanism can be moved to conduct tests at different locations.

[0009] Optionally, the testing mechanism includes a first electric cylinder, which is fixedly installed at the bottom of the threaded sleeve. The telescopic end of the first electric cylinder is fixedly connected to a mounting plate, and the bottom of the mounting plate is evenly connected to a rolling wheel from front to back.

[0010] By adopting the above technical solution, rutting tests can be conducted on asphalt pavements.

[0011] Optionally, a second electric cylinder is fixedly connected to the bottom of the test frame, and a push plate is fixedly connected to the telescopic end of the second electric cylinder.

[0012] By adopting the above technical solution, the asphalt pavement in the test can be moved and pushed out of the test frame, thereby increasing the discharge speed and improving the efficiency of subsequent tests.

[0013] Optionally, a camera is fixedly installed on the right side of the bottom of the threaded sleeve, and a door is movably connected to the front of the protective box via a hinge.

[0014] By adopting the above technical solution, it is possible to facilitate real-time monitoring of the test results.

[0015] Optionally, a collection box is placed at the bottom of the inner cavity of the bottom box, and guide blocks are fixedly connected to both sides of the bottom of the collection box. Guide grooves are opened on both sides of the bottom of the inner cavity of the bottom box to cooperate with the guide blocks, and the outer surface of the guide block is slidably connected to the inner surface of the guide groove.

[0016] By adopting the above technical solution, it is convenient to collect the asphalt after the test.

[0017] Optionally, a slider is fixedly connected to the top of the threaded sleeve, and a groove is provided on the top of the inner cavity of the protective box to cooperate with the slider, and the outer surface of the slider is slidably connected to the inner surface of the groove.

[0018] By adopting the above technical solution, the movement of the threaded sleeve can be guided and limited.

[0019] Optionally, the left side of the compression spring is fixedly connected to the right side of the limiting ring, and the right side of the compression spring is fixedly connected to the left side of the turntable.

[0020] By adopting the above technical solution, the stability of the compression spring can be improved.

[0021] In summary, this utility model has the following beneficial effects:

[0022] 1. This utility model facilitates the laying and sampling of asphalt by setting up a test frame, and can test the rutting resistance of the paved road surface by setting up a test mechanism. It can also heat the asphalt pavement by setting up a warm air fan to conduct a high-temperature softening test on the asphalt pavement. By setting up a limit rod, limit hole, turntable, limit ring, compression spring and rotating shaft, it can not only support and limit the test frame, but also flip the test frame after the test, so as to quickly pour out the asphalt and facilitate material discharge.

[0023] 2. By setting a second electric cylinder and a pusher plate, this utility model can push the asphalt pavement in the test to move and push the asphalt pavement out of the test frame, thereby increasing the discharge speed and improving the efficiency of subsequent tests. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0026] Figure 3 The structure of this utility model Figure 1 A magnified view of a section at point A in the middle;

[0027] Figure 4 This is a left view of the structure of the testing mechanism of this utility model.

[0028] In the diagram: 1. Base box; 2. Protective box; 3. Moving mechanism; 301. Servo motor; 302. Threaded rod; 303. Threaded sleeve; 4. Testing mechanism; 401. First electric cylinder; 402. Mounting plate; 403. Rolling wheel; 5. Warm air blower; 6. Rotating shaft; 7. Test frame; 8. Turntable; 9. Through hole; 10. Limiting rod; 11. Limiting hole; 12. Limiting ring; 13. Compression spring; 14. Second electric cylinder; 15. Push plate; 16. Camera; 17. Collection box. Detailed Implementation

[0029] 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.

[0030] Example 1:

[0031] Please refer to Figure 1-4 A test device for recycled asphalt pavement includes a base box 1, a protective box 2 fixedly connected to the top of the base box 1, a moving mechanism 3 provided in the inner cavity of the protective box 2, a test mechanism 4 provided at the bottom of the moving mechanism 3, a heater 5 fixedly installed on the left side of the inner cavity of the protective box 2, and rotating shafts 6 rotatably connected to both sides of the inner cavity of the protective box 2 via bearings. A test frame 7 is fixedly connected to one side of the two rotating shafts 6 opposite to each other. The right side of the right rotating shaft 6 passes through the protective box 2 and is fixedly connected to a turntable 8. A through hole 9 is opened at the top right side of the turntable 8, and a limit rod 10 is movably connected to the inner surface of the through hole 9. Limiting holes 11 are opened at the upper and lower positions of the right side of the protective box 2 to cooperate with the limit rod 10. The outer surface of the limit rod 10 is inserted into the inner surface of the limit hole 11. A limit ring 12 is fixedly connected to the outer surface of the limit rod 10. A compression spring 13 is movably connected to the outer surface of the limit rod 10 and located between the limit ring 12 and the turntable 8.

[0032] As a further technical optimization of this utility model, the moving mechanism 3 includes a servo motor 301, which is fixedly installed on the top of the left side of the protective box 2. The output end of the servo motor 301 is fixedly connected to a threaded rod 302. The right side of the threaded rod 302 is rotatably connected to the right side of the inner cavity of the protective box 2 through a bearing. The outer surface of the threaded rod 302 is threadedly connected to a threaded sleeve 303.

[0033] As a further technical optimization of this utility model, the test mechanism 4 includes a first electric cylinder 401, which is fixedly installed at the bottom of the threaded sleeve 303. The telescopic end of the first electric cylinder 401 is fixedly connected to an installation plate 402, and the bottom of the installation plate 402 is evenly connected to a rolling wheel 403 from front to back.

[0034] As a further technical optimization of this utility model, a camera 16 is fixedly installed on the right side of the bottom of the threaded sleeve 303, and a door is movably connected to the front of the protective box 2 via a hinge.

[0035] As a further technical optimization of this utility model, a collection box 17 is placed at the bottom of the inner cavity of the bottom box 1. Guide blocks are fixedly connected to both sides of the bottom of the collection box 17. Guide grooves for use with the guide blocks are opened on both sides of the bottom of the inner cavity of the bottom box 1, and the outer surface of the guide block is slidably connected to the inner surface of the guide groove.

[0036] As a further technical optimization of this utility model, the top of the threaded sleeve 303 is fixedly connected to a slider, and the top of the inner cavity of the protective box 2 is provided with a sliding groove for use with the slider, and the outer surface of the slider is slidably connected to the inner surface of the sliding groove.

[0037] As a further technical optimization of this utility model, the left side of the compression spring 13 is fixedly connected to the right side of the limiting ring 12, and the right side of the compression spring 13 is fixedly connected to the left side of the turntable 8.

[0038] In this embodiment: the test frame 7 facilitates the laying and sampling of asphalt; the test mechanism 4 enables the testing of the rutting resistance of the paved road surface; the heater 5 heats the asphalt pavement for a high-temperature softening test; the combination of the limiting rod 10, limiting hole 11, turntable 8, limiting ring 12, compression spring 13, and rotating shaft 6 not only supports and limits the test frame 7 but also allows it to be flipped after the test for quick and easy discharge of the asphalt; and the first electric cylinder 401, mounting plate 402, and roller are also included. The roller 403 is capable of conducting rutting tests on asphalt pavement. By setting up a servo motor 301, a threaded rod 302, and a threaded sleeve 303, it can drive the first electric cylinder 401, the mounting plate 402, and the roller 403 to move and conduct tests on asphalt pavement at different locations. By setting up a camera 16, the test results can be displayed for easy observation by test personnel. By setting up a collection box 17, waste materials can be collected. By setting up a guide block and a guide groove, the movement of the collection box 17 can be guided and limited. By setting up a slider and a slide groove, the movement of the threaded sleeve 303 can be guided and limited.

[0039] Example 2:

[0040] Reference Figure 2 The bottom of the test frame 7 is fixedly connected to a second electric cylinder 14, and the extension end of the second electric cylinder 14 is fixedly connected to a push plate 15.

[0041] In this embodiment, by setting a second electric cylinder 14 and a pusher plate 15, the asphalt pavement in the test can be moved and pushed out of the test frame 7, thereby increasing the discharge speed and improving the efficiency of subsequent tests.

[0042] The implementation principle of this utility model is as follows: When in use, open the box door, evenly spread the asphalt pavement sample to be tested in the test frame 7, close the box door, turn on the control switch of the heater 5, blow hot air onto the asphalt pavement through the heater 5 to heat the asphalt pavement, observe the softening of the asphalt under different high temperatures through the camera 16, and conduct a high temperature softening test on the asphalt pavement. At the same time, turn on the control switch of the first electric cylinder 401, the first electric cylinder 401 drives the mounting plate 402 and the rolling wheel 403 to move downward, so that the rolling wheel 403 contacts the asphalt pavement. Then turn on the control switch of the servo motor 301, the servo motor 301 drives the threaded rod 302 to rotate, the threaded rod 302 drives the threaded sleeve 303 to move, and the threaded sleeve 303 drives the first electric cylinder 401, the mounting plate 402 and the rolling wheel 403 to move, and conduct a rutting test on the asphalt pavement. At the same time, it can also test the rutting test of asphalt pavement under different high temperatures.

[0043] When the asphalt pavement sampling test is completed and the asphalt pavement needs to be cleaned, pull the limiting rod 10 to disengage it from the limiting hole 11. Then rotate the limiting rod 10, which drives the turntable 8 to rotate. The turntable 8 drives the rotating shaft 6 to rotate, and the rotating shaft 6 drives the test frame 7 to flip 180 degrees. Release the limiting rod 10, and at this time, the compression spring 13 pushes the limiting rod 10 to move and insert it into the lower limiting hole 11 for fixation. Finally, start the control switch of the second electric cylinder 14. The second electric cylinder 14 drives the push plate 15 to move, and the push plate 15 pushes the tested asphalt pavement to move and push the asphalt pavement out of the test frame 7. At this time, the asphalt pavement falls into the collection box 17 for collection. This method not only allows for multiple test items but also facilitates material discharge and has high testing efficiency.

[0044] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A test apparatus for recycled asphalt pavement, comprising a base box (1), characterized in that: A protective box (2) is fixedly connected to the top of the base box (1). A moving mechanism (3) is provided in the inner cavity of the protective box (2). A test mechanism (4) is provided at the bottom of the moving mechanism (3). A heater (5) is fixedly installed on the left side of the inner cavity of the protective box (2). A rotating shaft (6) is rotatably connected to both sides of the inner cavity of the protective box (2) through bearings. A test frame (7) is fixedly connected to one side of the two rotating shafts (6) facing each other. A turntable (8) is fixedly connected to the right side of the rotating shaft (6) on the right side through the protective box (2). A through hole (9) is provided on the top right side of the turntable (8). A limit rod (10) is movably connected to the inner surface of the through hole (9). Limiting holes (11) are provided at the top and bottom right sides of the protective box (2) to cooperate with the limit rod (10). The outer surface of the limit rod (10) is inserted into the inner surface of the limit hole (11). A limit ring (12) is fixedly connected to the outer surface of the limit rod (10). A compression spring (13) is movably connected to the outer surface of the limit rod (10) and between the limit ring (12) and the turntable (8).

2. The recycled asphalt pavement testing device according to claim 1, characterized in that: The moving mechanism (3) includes a servo motor (301), which is fixedly installed on the top left side of the protective box (2). The output end of the servo motor (301) is fixedly connected to a threaded rod (302). The right side of the threaded rod (302) is rotatably connected to the right side of the inner cavity of the protective box (2) through a bearing. The outer surface of the threaded rod (302) is threadedly connected to a threaded sleeve (303).

3. The recycled asphalt pavement testing device according to claim 2, characterized in that: The test mechanism (4) includes a first electric cylinder (401), which is fixedly installed on the bottom of the threaded sleeve (303). The telescopic end of the first electric cylinder (401) is fixedly connected to an installation plate (402), and the bottom of the installation plate (402) is evenly connected to a rolling wheel (403) from front to back.

4. The recycled asphalt pavement testing device according to claim 1, characterized in that: The bottom of the test frame (7) is fixedly connected to a second electric cylinder (14), and the telescopic end of the second electric cylinder (14) is fixedly connected to a push plate (15).

5. A test apparatus for recycled asphalt pavement according to claim 2, characterized in that: A camera (16) is fixedly installed on the right side of the bottom of the threaded sleeve (303), and a door is movably connected to the front of the protective box (2) via a hinge.

6. The recycled asphalt pavement testing device according to claim 1, characterized in that: A collection box (17) is placed at the bottom of the inner cavity of the bottom box (1). Guide blocks are fixedly connected to both sides of the bottom of the collection box (17). Guide grooves are opened on both sides of the bottom of the inner cavity of the bottom box (1) to cooperate with the guide blocks, and the outer surface of the guide block is slidably connected to the inner surface of the guide groove.

7. A test apparatus for recycled asphalt pavement according to claim 2, characterized in that: The top of the threaded sleeve (303) is fixedly connected to a slider, and the top of the inner cavity of the protective box (2) is provided with a sliding groove for use with the slider, and the outer surface of the slider is slidably connected to the inner surface of the sliding groove.

8. The recycled asphalt pavement testing device according to claim 1, characterized in that: The left side of the compression spring (13) is fixedly connected to the right side of the limiting ring (12), and the right side of the compression spring (13) is fixedly connected to the left side of the turntable (8).

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