Asphalt mixture rut test device

Abstract

The utility model discloses an asphalt mixture rut test device, which relates to the field of asphalt mixtures and comprises a water tank and a test frame fixedly mounted at the top of the water tank, a reversing component is movably mounted at the top of the test frame, and a test wheel is movably mounted at the bottom of the reversing component. The top of the water tank is fixedly provided with a placing table located below the testing wheel, the rear side of the water tank is fixedly provided with a spraying assembly, the reversing assembly comprises an annular frame and a servo motor, and the annular frame is fixedly installed at the top in the testing frame. The driving motor is controlled to drive the threaded rod to rotate so as to drive the sliding seat to transversely slide along the inside of the movable frame, the test wheel rolls along the asphalt plate test piece for testing, the servo motor is controlled to drive the movable frame to rotate, so that the rolling wheel on the side surface of the movable frame rotates along the limiting groove, and the rolling angle of the test wheel can be changed; the orientation of the test wheel can be adjusted by controlling the servo motor, and the adjustment flexibility of the test wheel is improved.

Description

Technical Field

[0001] The utility model relates to the field of asphalt mixtures, in particular to an asphalt mixture rutting test device. Background Art

[0002] Asphalt mixture is a dark brown mixture with high viscosity, good compression resistance and easy solidification. Therefore, it is mainly used in coatings, plastic products, rubber processing, and road paving scenarios. In order to understand the various properties of asphalt in detail, performance testing equipment will be used to test the various properties of asphalt. The asphalt mixture rutting test uses a standard molding method to make a standard asphalt plate specimen. At a specified temperature, the tire is pressed on the asphalt plate specimen and walked on it. The number of times the specimen needs to be walked for every 1mm increase in deformation during the deformation stability period is measured, which is the dynamic stability.

[0003] Existing asphalt mixture rutting test devices, such as authorization announcement No. CN217277569U, disclose a fully automatic asphalt mixture rutting tester. The detachable mechanism adjusts the rolling direction of the wheel so that it can roll back and forth, and then cooperates with the Y-axis moving mechanism to drive the test bench to move back and forth to achieve longitudinal rutting tests. However, it requires manual change of the wheel direction and can only achieve lateral or longitudinal adjustment of the wheel, which is not flexible enough. Utility Model Content

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] An asphalt mixture rutting test device includes a water tank and a test frame fixedly installed on the top of the water tank, a reversing assembly movably installed on the top of the test frame, a test wheel movably installed on the bottom of the reversing assembly, a placement table located below the test wheel fixedly installed on the top of the water tank, a spray assembly fixedly installed on the rear side of the water tank, the reversing assembly includes an annular frame and a servo motor, the annular frame fixedly installed on the top of the test frame, the servo motor fixedly installed on the top of the test frame, the bottom of the servo motor fixedly connected to a movable frame, a threaded rod movably installed inside the movable frame, a drive motor connected to the threaded rod fixedly installed on the inner side of the movable frame, the outer thread of the threaded rod is threadedly connected to a slide, a cylinder fixedly installed on the bottom of the slide, a mounting frame fixedly installed on the bottom of the cylinder, and the test wheel movably hinged to the inner side of the mounting frame.

[0006] A further improvement of the technical solution of the present utility model is that the water tank includes a box body, a guide platform is fixedly provided on the top of the box body, through openings are equidistantly provided on the inner side of the guide platform, a card slot is provided on the front side of the box body, a card frame is movably connected to the inside of the card slot, and a filter plate is fixedly installed inside the card frame.

[0007] A further improvement of the technical solution of the present utility model is that: the spray assembly includes a water pump fixedly installed on the rear side of the test frame, the water pump is connected to the box body, the top of the water pump is fixedly connected to a tee pipe, the ends of the tee pipe are fixedly installed with water storage trays located on the left and right sides of the test frame, and the inner side of the water storage tray is fixedly installed with a spray head.

[0008] A further improvement of the technical solution of the present utility model is that: the placing table includes a table top, a clamping edge is provided at the rear of the top of the table top, ear blocks are fixedly connected to the left and right sides and the front side of the table top, the internal thread of the ear block is connected to a clamping screw, a splint is movably installed on the inner side of the clamping screw, and the outer side of the splint is fixedly connected to a guide block clamped inside the ear block.

[0009] A further improvement of the technical solution of the present invention is that a limiting groove is provided on the inner side of the annular frame, and rollers located in the limiting groove are movably connected to the left and right sides of the movable frame.

[0010] A further improvement of the technical solution of the present invention is that: the top of the mounting frame is fixedly connected with guide rods located at the front and rear sides of the cylinder, and the guide rods are movably clamped in the interior of the slide.

[0011] A further improvement of the technical solution of the present invention is that: the guide platform is arranged to be inclined toward the through opening, and the through opening is arranged on the outside of the placement platform.

[0012] A further improvement of the technical solution of the present utility model is that: the spray head is arranged obliquely toward the upper side of the placement table.

[0013] Due to the adoption of the above technical solution, the present invention has achieved the following technical advancements compared to the prior art:

[0014] 1. The utility model provides an asphalt mixture rutting test device, which drives the threaded rod to rotate by controlling the driving motor to drive the slide to slide laterally along the inside of the movable frame, and the test is performed by rolling the test wheel along the asphalt plate specimen. The movable frame is driven to rotate by controlling the servo motor, so that the roller on the side of the movable frame rotates along the limit groove, which can change the rolling angle of the test wheel. The direction of the test wheel can be adjusted by controlling the servo motor, thereby increasing its adjustment flexibility.

[0015] 2. The utility model provides an asphalt mixture rutting test device, which collects water in the box through a three-way pipe by controlling a water pump and sends it to a water storage tray, and sprays it to the asphalt plate test piece through a sprinkler head to simulate a rainwater state experiment. The spray water flows from the asphalt plate test piece to the guide platform and flows along the guide platform to the port and back into the box. The return water is received and filtered by a filter plate, thereby recycling the water source and saving water. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of an asphalt mixture rutting test device according to the present invention;

[0017] Figure 2 This is a schematic structural diagram of the reversing assembly of the present utility model;

[0018] Figure 3 This is a structural diagram of the placement table of the utility model;

[0019] Figure 4 This is a schematic structural diagram of the water tank and spray assembly of the utility model;

[0020] Figure 5 This is a schematic structural diagram of the filter plate of the present invention.

[0021] In the figure: 1. water tank; 11. box body; 12. guide platform; 13. opening; 14. card slot; 15. card frame; 16. filter plate; 2. test frame; 3. reversing assembly; 31. ring frame; 32. servo motor; 33. movable frame; 34. threaded rod; 35. drive motor; 36. slide; 37. cylinder; 38. mounting frame; 39. limit slot; 310. roller; 311. guide rod; 4. test wheel; 5. placement table; 51. table top; 52. card edge; 53. ear block; 54. clamping screw; 55. splint; 56. guide block; 7. spray assembly; 71. water pump; 72. tee pipe; 73. water storage tray; 74. spray head. DETAILED DESCRIPTION

[0022] The utility model is described in further detail below:

[0023] like Figures 1 to 5 As shown, the utility model provides an asphalt mixture rutting test device, including a water tank 1 and a test frame 2 fixedly installed on the top of the water tank 1, a reversing assembly 3 movably installed on the top of the test frame 2, a test wheel 4 movably installed on the bottom of the reversing assembly 3, a placement table 5 located below the test wheel 4 fixedly installed on the top of the water tank 1, a spray assembly 7 fixedly installed on the rear side of the water tank 1, the reversing assembly 3 includes an annular frame 31 and a servo motor 32, the annular frame 31 is fixedly installed on the top of the test frame 2, the servo motor 32 is fixedly installed on the top of the test frame 2, a movable frame 33 is fixedly connected to the bottom of the servo motor 32, a threaded rod 34 is movably installed inside the movable frame 33, a driving motor 35 connected to the threaded rod 34 is fixedly installed on the inner side of the movable frame 33, the outer thread of the threaded rod 34 is threadedly connected to a slide 36, a cylinder 37 is fixedly installed on the bottom of the slide 36, a mounting frame 38 is fixedly installed on the bottom of the cylinder 37, and the test wheel 4 is movably hinged to the inner side of the mounting frame 38.

[0024] By controlling the drive motor 35 to rotate the threaded rod 34, the slide 36 is driven to slide laterally along the inside of the movable frame 33, and the test wheel 4 is rolled along the asphalt plate specimen for testing. By controlling the servo motor 32 to rotate the movable frame 33, the roller 310 on the side of the movable frame 33 is rotated along the limit groove 39, which can change the rolling angle of the test wheel 4. By controlling the servo motor 32, the direction of the test wheel 4 can be adjusted, thereby increasing its adjustment flexibility.

[0025] like Figure 4 and Figure 5 As shown, the water tank 1 includes a box body 11, a guide platform 12 is fixedly provided on the top of the box body 11, and openings 13 are equidistantly provided on the inner side of the guide platform 12. A card slot 14 is provided on the front side of the box body 11, and a card frame 15 is movably connected to the inside of the card slot 14, and a filter plate 16 is fixedly installed inside the card frame 15.

[0026] The spray assembly 7 includes a water pump 71 fixedly installed on the rear side of the test frame 2. The water pump 71 is connected to the box body 11. The top of the water pump 71 is fixedly connected to a three-way pipe 72. The ends of the three-way pipe 72 are fixedly installed with water storage trays 73 located on the left and right sides of the test frame 2. A spray head 74 is fixedly installed on the inner side of the water storage tray 73.

[0027] By controlling the water pump 71 to collect the water source in the box 11 and send it to the water storage tray 73 through the three-way pipe 72, the water is sprayed to the asphalt plate specimen through the sprinkler head 74 to simulate the rainwater state experiment. The spray water flows from the asphalt plate specimen to the guide platform 12 and flows along the guide platform 12 to the port 13 and flows back to the box 11. The return water is received and filtered by the filter plate 16, thereby recycling the water source and saving water.

[0028] like Figure 3 As shown, the placement table 5 includes a table top 51, a clamping edge 52 is provided at the rear of the top of the table top 51, and ear blocks 53 are fixedly connected to the left and right sides and the front side of the table top 51. The internal thread of the ear block 53 is connected to a clamping screw 54, and a splint 55 is movably installed on the inner side of the clamping screw 54. The outer side of the splint 55 is fixedly connected to a guide block 56 clamped inside the ear block 53.

[0029] By placing the asphalt sheet specimen on the table 51 with its rear side against the clamping edge 52, and by rotating the clamping screws 54 located on the left and right sides and the front side of the table 51 to slide inward along the ear block 53, the clamping plate 55 is pressed against the side of the asphalt sheet specimen to fix it, thereby ensuring the fixation of the asphalt sheet specimen and ensuring the stability of the experiment after changing the direction of the test wheel 4.

[0030] like Figure 2 As shown, a limiting groove 39 is provided on the inner side of the annular frame 31 , and rollers 310 located in the limiting groove 39 are movably connected to the left and right sides of the movable frame 33 .

[0031] The roller 310 can roll along the limiting groove 39 , thereby providing a limit for the movable frame 33 , ensuring the stability of the movable frame 33 in rotating and adjusting along with the servo motor 32 .

[0032] like Figure 2 As shown, the top of the mounting frame 38 is fixedly connected to the guide rods 311 located at the front and rear sides of the cylinder 37 , and the guide rods 311 are movably engaged with the interior of the slide 36 .

[0033] By setting the guide rod 311, the guide rod 311 is driven to move when the cylinder 37 is raised or lowered, thereby providing limited guidance and improving stability.

[0034] like Figure 4 As shown, the guide platform 12 is inclined toward the through opening 13, and the through opening 13 is arranged on the outside of the placement platform 5.

[0035] The guide platform 12 is tilted toward the opening 13 so that water flows to converge at the opening 13, thereby facilitating the recovery of the spray water.

[0036] like Figure 4 As shown, the shower head 74 is arranged obliquely above the placement table 5.

[0037] The spray head 74 is arranged obliquely above the placement platform 5 to ensure a spraying effect on the asphalt plate specimen fixed on the placement platform 5, and the experiment is carried out under a simulated rain state.

[0038] The working principle of the asphalt mixture rutting test device is described in detail below.

[0039] like Figures 1 to 5As shown, the asphalt sheet specimen is placed on the table 51 so that its rear side abuts the clamping edge 52, and the clamping screws 54 located on the left, right and front sides of the table 51 are rotated to slide inward along the ear block 53, and the clamping plate 55 is pressed against the side of the asphalt sheet specimen to fix it, and then the mounting frame 38 is driven down by the control cylinder 37 so that the test wheel 4 is located above the asphalt sheet specimen, and the threaded rod 34 is driven to rotate by the control driving motor 35 so that the slide 36 slides laterally along the inside of the movable frame 33, and the test is performed by rolling the test wheel 4 along the asphalt sheet specimen, and the movable frame 33 is driven to rotate by the control servo motor 32 so that the roller 310 on the side of the movable frame 33 moves along the limit groove 39. By rotating, the rolling angle of the test wheel 4 can be changed. The direction of the test wheel 4 can be adjusted by controlling the servo motor 32, which increases its adjustment flexibility. During the experiment, the water source in the box 11 is collected by controlling the water pump 71 and sent to the water storage tray 73 through the three-way pipe 72. The water is sprayed to the asphalt plate specimen above the placement table 5 through the spray head 74 on the inside of the water storage tray 73, and the experiment is simulated in rainwater state. The spray water flows from the asphalt plate specimen to the guide platform 12 and flows along the guide platform 12 to the through port 13, and flows back to the box 11 through the through port 13. The return water is received and filtered by the filter plate 16 in the card frame 15 clamped in the card slot 14, thereby ensuring the recycling of water.

[0040] The above generally describes the present invention in detail. However, it is obvious to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. An asphalt mixture rutting test device, comprising a water tank (1) and a test frame (2) fixedly mounted on the top of the water tank (1), characterized in that: A reversing assembly (3) is movably mounted on the top of the test frame (2), a test wheel (4) is movably mounted on the bottom of the reversing assembly (3), a placement table (5) located below the test wheel (4) is fixedly mounted on the top of the water tank (1), and a spray assembly (7) is fixedly mounted on the rear side of the water tank (1); The reversing assembly (3) comprises an annular frame (31) and a servo motor (32), wherein the annular frame (31) is fixedly mounted on the top of the test frame (2), the servo motor (32) is fixedly mounted on the top of the test frame (2), the bottom of the servo motor (32) is fixedly connected to a movable frame (33), a threaded rod (34) is movably mounted inside the movable frame (33), a driving motor (35) connected to the threaded rod (34) is fixedly mounted on the inner side of the movable frame (33), the outer side of the threaded rod (34) is threadedly connected to a slide (36), a cylinder (37) is fixedly mounted on the bottom of the slide (36), a mounting frame (38) is fixedly mounted on the bottom of the cylinder (37), and the test wheel (4) is movably hinged to the inner side of the mounting frame (38).

2. The asphalt mixture rutting test device according to claim 1, characterized in that: The water tank (1) comprises a box body (11), a guide platform (12) is fixedly provided on the top of the box body (11), openings (13) are equidistantly provided on the inner side of the guide platform (12), a card slot (14) is provided on the front side of the box body (11), a card frame (15) is movably connected to the interior of the card slot (14), and a filter plate (16) is fixedly installed inside the card frame (15).

3. The asphalt mixture rutting test device according to claim 2, characterized in that: The spray assembly (7) comprises a water pump (71) fixedly mounted on the rear side of the test frame (2); the water pump (71) is connected to the box (11); a three-way pipe (72) is fixedly connected to the top of the water pump (71); water storage trays (73) located on the left and right sides of the test frame (2) are fixedly mounted at the ends of the three-way pipe (72); and a spray head (74) is fixedly mounted on the inner side of the water storage tray (73).

4. The asphalt mixture rutting test device according to claim 1, characterized in that: The placing table (5) includes a table top (51), a clamping edge (52) is provided at the rear of the top of the table top (51), and ear blocks (53) are fixedly connected to the left and right sides and the front side of the table top (51), the inner thread of the ear block (53) is connected to a clamping screw (54), the inner side of the clamping screw (54) is movably mounted with a clamping plate (55), and the outer side of the clamping plate (55) is fixedly connected to a guide block (56) clamped inside the ear block (53).

5. The asphalt mixture rutting test device according to claim 1, characterized in that: A limiting groove (39) is provided on the inner side of the annular frame (31), and rollers (310) located in the limiting groove (39) are movably connected to the left and right sides of the movable frame (33).

6. The asphalt mixture rutting test device according to claim 1, characterized in that: The top of the mounting frame (38) is fixedly connected to guide rods (311) located at the front and rear sides of the cylinder (37), and the guide rods (311) are movably engaged with the interior of the slide seat (36).

7. The asphalt mixture rutting test device according to claim 2, characterized in that: The guide platform (12) is arranged to be inclined toward the through opening (13), and the through opening (13) is arranged on the outside of the placement platform (5).

8. The asphalt mixture rutting test device according to claim 3, characterized in that: The spray head (74) is arranged obliquely above the placement platform (5).

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