Anti-fatigue testing device for recycled asphalt mixture

Abstract

The utility model discloses a recycled asphalt mixture anti-fatigue testing device which comprises a supporting frame, a shell is arranged above the supporting frame, a motor is arranged on one side of the lower end of one side of the shell, a rotating shaft of the motor penetrates through the shell and is fixedly connected with a threaded rod, and the end, located in the shell, of the threaded rod is sleeved with a movable plate. A hydraulic cylinder is arranged in the middle of the upper portion of the movable plate, the stroke end of the hydraulic cylinder penetrates through the movable plate to be fixedly connected with a connecting plate, a pressing plate is arranged at the lower end of the connecting plate, a pressure sensor is arranged between the middle of the lower portion of the connecting plate and the pressing plate, a bottom plate is arranged at the lower end of the supporting frame, and a protective cover is arranged above the bottom plate. And two partition plates which are arranged at equal intervals are arranged in the protective cover. The testing device is simple in structure, convenient to operate and capable of quickly performing anti-fatigue testing on the recycled asphalt mixture, and the accuracy of the testing device is effectively guaranteed through comparison of multiple groups of experiments.

Description

Technical Field

[0001] The utility model relates to the technical field of recycled asphalt mixture testing, in particular to an anti-fatigue testing device for recycled asphalt mixture. Background Technique

[0002] Recycled asphalt mixture refers to a mixture formed by remixing waste asphalt mixture, regenerant, new aggregate, new asphalt and other materials in a certain proportion by a certain technology, which has certain road use performance. Before the use of recycled asphalt concrete materials, in order to ensure the quality of recycled asphalt concrete materials, anti-fatigue tests need to be carried out on recycled asphalt concrete materials. The current method is to measure the compressive value of recycled asphalt concrete materials. The patent number CN220982989U discloses an anti-fatigue testing device for recycled asphalt concrete materials, including a testing box. A testing table is fixedly arranged inside the testing box. A hydraulic cylinder is fixedly arranged on the testing box above the testing table. The telescopic end of the hydraulic cylinder is fixedly connected with a pressing plate. The utility model drives the hydraulic cylinder to drive the pressing plate to extrude the recycled asphalt concrete material, and can test the pressure through a pressure sensor. The anti-fatigue strength of the recycled asphalt concrete material is reflected by the pressure value, so as to realize the side view of the anti-fatigue strength of the recycled asphalt concrete material. The box door can block the crushed slag of the recycled asphalt concrete material to avoid the crushed slag of the recycled asphalt concrete material splashing out and causing harm to personnel. However, this kind of measuring device can only test one recycled asphalt mixture at a time, and there is a lack of comparative experiments during the test, so that the measurement accuracy of the measuring device of the test device cannot be guaranteed. Therefore, we propose an anti-fatigue testing device for recycled asphalt mixture. Content of the Utility Model

[0003] In order to solve the above problems, the utility model provides an anti-fatigue testing device for recycled asphalt mixture. The utility model solves the problem that the measuring device can only test one recycled asphalt mixture at a time, and there is a lack of comparative experiments during the test, so that the measurement accuracy of the measuring device of the test device cannot be guaranteed.

[0004] An anti-fatigue testing device for recycled asphalt mixture in the utility model includes a support frame. A shell is arranged above the support frame. A motor is arranged at one side of the lower end of one side of the shell. The rotating shaft of the motor penetrates the shell and is fixedly connected with a threaded rod. One end of the threaded rod located inside the shell is sleeved with a movable plate. A hydraulic cylinder is arranged in the middle above the movable plate. The stroke end of the hydraulic cylinder penetrates the movable plate and is fixedly connected with a connecting plate. A pressing plate is arranged at the lower end of the connecting plate. A pressure sensor is arranged between the middle of the lower part of the connecting plate and the pressing plate. The lower end of the support frame is provided with a bottom plate. A protective cover is arranged above the bottom plate. Two partition plates are arranged at equal intervals inside the protective cover.

[0005] In the above solution, guide rods are inserted on both sides of the movable plate where it is located on both sides of the hydraulic cylinder, and the lower part of the guide rod is fixedly connected to the connecting plate.

[0006] In the above solution, sliders are provided on both sides below the movable plate, and guide rails matching the sliders are provided inside the housing.

[0007] In the above solution, positioning rods are provided on both sides above the pressing plate, positioning grooves matching the positioning rods are formed on the connecting plate, and springs are sleeved between the positioning rods located between the pressing plate and the connecting plate.

[0008] In the above solution, a control panel is provided on one side wall of the housing, a display screen is provided at the upper end of the control panel, and control buttons are provided below the display screen.

[0009] In the above solution, support legs are provided at the four corners below the support frame.

[0010] The advantages and beneficial effects of the present utility model are as follows: The present utility model provides a device for testing the anti-fatigue performance of recycled asphalt mixture. The motor drives the threaded rod to rotate, and the movable plate on the threaded rod can perform reciprocating movement in the horizontal direction on the threaded rod. When the movable plate moves, the hydraulic cylinder also moves accordingly. The hydraulic cylinder pushes the connecting plate to move in the vertical direction. Through the transmission of the connecting plate, the pressing plate also moves accordingly. Through the mutual cooperation between the pressing plate and the bottom plate, the anti-fatigue test of the recycled asphalt mixture can be completed. The partition plate divides the bottom plate into multiple independent spaces. Through the setting of the partition plate and the protective cover, the bottom plate is divided into multiple independent spaces, so that the recycled asphalt mixture can perform the anti-fatigue test separately in the individual independent spaces. This kind of test device has a simple structure and is easy to operate, and can quickly perform the anti-fatigue test on the recycled asphalt mixture. Through the comparison of multiple groups of experiments, the accuracy of the test device is effectively guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the 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.

[0012] Figure 1 is a schematic structural diagram of the present utility model;

[0013] Figure 2 is a sectional view of the present utility model;

[0014] Figure 3 is a schematic structural diagram of part A of the present utility model.

[0015] In the figure: 1, support frame; 2, housing; 3, motor; 4, threaded rod

[0016] 5, movable plate; 6, hydraulic cylinder; 7, connecting plate; 8, pressing plate

[0017] 9, pressure sensor; 10, bottom plate; 11, protective cover; 12, partition board

[0018] 13, guide rod; 14, slider; 15, guide rail; 16, positioning rod

[0019] 17, positioning groove; 18, control panel; 19, display screen; 20, control button

[0020] 21, support leg; 22, spring Specific implementation manner

[0021] The following combines the drawings and embodiments to further describe the specific implementation manner of the present utility model. The following embodiments are only used to more clearly illustrate the technical solution of the present utility model, and cannot be used to limit the protection scope of the present utility model

[0022] As Figures 1 - 3 shown, the present utility model is a device for testing the anti-fatigue performance of recycled asphalt mixture, including a support frame 1. Above the support frame 1 is provided a housing 2. At one side of the lower end of the housing 2 is provided a motor 3. The rotating shaft of the motor 3 penetrates the housing 2 and is fixedly connected to a threaded rod 4. Both ends of the threaded rod 4 are movably connected to the housing 2. One end of the threaded rod 4 located inside the housing 2 is sleeved with a movable plate 5. The movable plate 5 is threadedly connected to the threaded rod 4. When the motor 3 works, the motor 3 drives the threaded rod 4 to rotate. When the threaded rod 4 rotates, the movable plate 5 on the threaded rod 4 can perform reciprocating movement in the horizontal direction on the threaded rod 4. In the middle of the upper part of the movable plate 5 is provided a hydraulic cylinder 6. The stroke end of the hydraulic cylinder 6 penetrates the movable plate 5 and is fixedly connected to a connecting plate 7. At the lower end of the connecting plate 7 is provided a pressing plate 8. Between the middle part below the connecting plate 7 and the pressing plate 8 is provided a pressure sensor 9. At the lower end of the support frame 1 is provided a bottom plate 10. Above the bottom plate 10 is provided a protective cover 11. Inside the protective cover 11 are provided two partition boards 12 arranged at equal distances. The partition boards 12 divide the bottom plate 10 into multiple independent spaces. Through the arrangement of the partition boards 12 and the protective cover 11, the bottom plate 10 is divided into multiple independent spaces, so that the recycled asphalt mixture can be subjected to anti-fatigue tests respectively inside separate independent spaces. When the hydraulic cylinder 6 works, the hydraulic cylinder 6 pushes the connecting plate 7 to move in the vertical direction. Through the transmission of the connecting plate 7, the pressing plate 8 also moves accordingly. Through the mutual cooperation between the pressing plate 8 and the bottom plate 10, the anti-fatigue test of the recycled asphalt mixture can be completed. During the test of the recycled asphalt mixture, the pressure sensor 9 can detect the pressure received by the recycled asphalt mixture

[0023] The movable plate 5 is inserted with guide rods 13 on both sides of the hydraulic cylinder 6. The lower part of the guide rod 13 is fixedly connected to the connecting plate 7. The guide rod 13 is movably connected to the movable plate 5. Through the mutual cooperation between the guide rod 13 and the movable plate 5, the moving stability of the connecting plate 7 is effectively improved.

[0024] Sliders 14 are provided on both sides below the movable plate 5. Guide rails 15 matching the sliders 14 are provided in the housing 2. The sliders 14 can slide on the guide rails 15. Through the mutual cooperation between the sliders 14 and the guide rails 15, the movable plate 5 can move stably in the horizontal direction.

[0025] Positioning rods 16 are provided on both sides above the pressing plate 8. Positioning grooves 17 matching the positioning rods 16 are formed on the connecting plate 7. A spring 22 is sleeved between the positioning rod 16 located between the pressing plate 8 and the connecting plate 7. Both ends of the spring 22 are fixedly connected to the pressing plate 8 and the connecting plate 7 respectively. The positioning rod 16 is inserted into the positioning groove 17. Through the mutual cooperation between the positioning rod 16 and the positioning groove 17, the pressing plate 8 can move stably in the vertical direction.

[0026] A control panel 18 is provided on one side wall of the housing 2. A display screen 19 is provided at the upper end of the control panel 18. Control buttons 20 are provided below the display screen 19. The display screen 19 can display relevant states during the operation of the testing device. The working state of the testing device can be controlled through the control buttons 20.

[0027] Support legs 21 are provided at the four corners below the support frame 1.

[0028] Specifically, in the present utility model, when the motor 3 is working, the motor 3 drives the threaded rod 4 to rotate. When the threaded rod 4 rotates, the movable plate 5 on the threaded rod 4 can move horizontally back and forth on the threaded rod 4. When the movable plate 5 moves, the hydraulic cylinder 6 also moves accordingly. When the hydraulic cylinder 6 is working, the hydraulic cylinder 6 pushes the connecting plate 7 to move in the vertical direction. Through the transmission of the connecting plate 7, the pressing plate 8 also moves accordingly. Through the mutual cooperation between the pressing plate 8 and the bottom plate 10, the anti-fatigue test of the recycled asphalt mixture can be completed. The partition plate 12 divides the bottom plate 10 into multiple independent spaces. Through the setting of the partition plate 12 and the protective cover 11, the bottom plate 10 is divided into multiple independent spaces, so that the recycled asphalt mixture can be subjected to the anti-fatigue test separately in the individual independent spaces.

[0029] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A regenerated asphalt mixture fatigue test device, comprising a support frame (1), characterized in that: A shell (2) is provided above the support frame (1), a motor (3) is provided on one side of the lower end of one side of the shell (2), a rotating shaft of the motor (3) passes through the shell (2) and is fixedly connected to a threaded rod (4), one end of the threaded rod (4) located in the shell (2) is sleeved with a movable plate (5), a hydraulic cylinder (6) is provided in the middle of the upper part of the movable plate (5), a stroke end of the hydraulic cylinder (6) passes through the movable plate (5) and is fixedly connected to a connecting plate (7), a pressure plate (8) is provided at the lower end of the connecting plate (7), a pressure sensor (9) is provided between the middle of the lower part of the connecting plate (7) and the pressure plate (8), a bottom plate (10) is provided at the lower end of the support frame (1), a protective cover (11) is provided above the bottom plate (10), and two equidistantly arranged partitions (12) are provided in the protective cover (11).

2. The anti-fatigue testing device for recycled asphalt mixture according to claim 1 is characterized in that: The movable plate (5) is located on both sides of the hydraulic cylinder (6) and is plugged with guide rods (13), and the guide rods (13) are fixedly connected to the connecting plate (7) at the bottom.

3. The anti-fatigue testing device for recycled asphalt mixture according to claim 1 is characterized in that: Slide blocks (14) are provided on both sides below the movable plate (5), and guide rails (15) matching the slide blocks (14) are provided in the housing (2).

4. The anti-fatigue testing device for recycled asphalt mixture according to claim 1 is characterized in that: Positioning rods (16) are provided on both sides above the pressure plate (8), and positioning grooves (17) matching the positioning rods (16) are provided on the connecting plate (7). The positioning rods (16) are located between the pressure plate (8) and the connecting plate (7) and are sleeved with springs (22).

5. The anti-fatigue testing device for recycled asphalt mixture according to claim 1 is characterized in that: A control panel (18) is provided on a side wall of one side of the housing (2), a display screen (19) is provided on the upper end of the control panel (18), and control buttons (20) are provided below the display screen (19).

6. The anti-fatigue testing device for recycled asphalt mixture according to claim 1 is characterized in that: Support legs (21) are provided at the four lower corners of the support frame (1).

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