Asphalt pavement water aging experiment equipment

Abstract

The utility model relates to the technical field of asphalt experiments, and particularly discloses asphalt pavement water aging experiment equipment which comprises a box body, a water supply system and an asphalt bearing assembly, and the box body comprises an equipment cavity and an experiment cavity; the asphalt bearing assembly comprises a bearing table, a receiving funnel is further arranged in the experiment cavity, an opening matched with the bearing frame is formed in the front face of the receiving funnel, and a rotating cover plate is installed at the bottom of the opening through a rotating shaft; when the water aging condition of asphalt under the condition of acid rain needs to be detected, the asphalt needs to be blended in a blending box of a water supply system and conveyed to a spraying pipe through a pump body to simulate a rainy day, and rainwater falling on the surface of the asphalt permeates from the side face of an asphalt block and the interior of the asphalt; the relation between the asphalt water permeability and the acid rain aging degree can be judged according to water stains in the first drainage pipe, and the rainwater washing aging degree of the asphalt surface can be judged according to the second drainage pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of asphalt experiments, and particularly relates to an asphalt pavement water aging experiment device. Background Art

[0002] Asphalt is a commonly used material for road construction and repair. As one of the materials for national basic road construction, it is necessary to detect its various data to obtain the service life of asphalt in different environments. For example, in our project, we mainly study the impact of acid rain on asphalt pavements. In order to better simulate the impact of acid rain on asphalt pavements in the ecosystem, there is an urgent need to provide an asphalt pavement water aging experiment device. Content of the Utility Model

[0003] In view of the deficiencies of the prior art, the utility model provides an asphalt pavement water aging experiment device, which includes a box body, a water supply system and an asphalt bearing assembly. The box body includes an equipment cavity and an experiment cavity. A maintenance door for maintaining the equipment cavity is provided on the box body. A window communicating with the experiment cavity is also provided on the box body, and the window is provided with a window cover.

[0004] The water supply system includes a spray pipe installed at the top of the experiment cavity and a pump body installed in the equipment cavity for supplying water to the spray pipe.

[0005] The asphalt bearing assembly includes a bearing platform, which is slidably connected to the inner wall of the experiment cavity through a slide rail. The slide rail is fixedly installed on the experiment cavity, and the bearing platform can extend out of the window through the slide rail.

[0006] The bearing platform includes a sliding frame, and a bearing frame is provided in the center of the sliding frame. The bearing frame includes a sealed side wall and a bottom plate fixedly connected to the side wall. The bottom plate is provided with water permeable holes.

[0007] A receiving funnel is further provided inside the experiment cavity. An opening adapted to the bearing frame is provided on the front of the receiving funnel, and a rotating cover plate is installed at the bottom of the opening through a rotating shaft.

[0008] The drain port at the bottom of the receiving funnel is detachably connected to a first drain pipe. The first drain pipe includes a connecting pipe connected to the receiving funnel and a water outlet part fixedly connected to the box body. The connecting pipe and the water outlet part are detachably connected.

[0009] A guiding plate is obliquely provided on the inner wall of the experiment cavity. A guiding groove is provided at the edge of the guiding plate, and a second drain pipe is provided at one end of the guiding groove.

[0010] It further includes a grinding unit, which includes a transmission shaft vertically installed on the carrier table and a driving motor for driving the transmission shaft to rotate. A grinding block is detachably installed at the bottom of the transmission shaft; the transmission shaft is installed at the top of the experimental cavity through a horizontal bearing.

[0011] The transmission shaft includes a fixed sleeve fixedly installed inside the horizontal bearing and a movable rod movably inserted inside the fixed sleeve. A locking screw is provided on the fixed sleeve for locking the movable rod.

[0012] The driving motor is fixedly installed on the top of the box body through a mounting frame, and a first gear is installed on the output shaft of the driving motor. A second gear meshing with the first gear is fixedly sleeved on the surface of the fixed sleeve.

[0013] The window cover is rotatably connected to the window, and a limit stop for restricting the window cover after rotation to be flush with the upper surface of the slide rail is provided on the window.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. Through the bearing frame of the carrier table of the present utility model, cooperating with the receiving funnel and the first drain pipe, when simulating rainy days, the water stains permeated by the asphalt blocks can be effectively collected through the receiving funnel and the first drain pipe; thus, the water permeability of the asphalt blocks in rainy days can be measured.

[0016] 2. When it is necessary to detect the water aging of asphalt under acid rain conditions in the present utility model, it needs to be prepared in the dispensing tank of the water supply system and conveyed to the spray pipe through the pump body to simulate rainy days. The rainwater dripping on the surface of the asphalt will penetrate from the side and inside of the asphalt blocks, and the relationship between the water permeability of the asphalt and the degree of acid rain aging can be determined according to the water stains in the first drain pipe, and the aging degree of the asphalt surface scoured by rainwater can be determined according to the second drain pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present application, and constitute a part of the present application. The schematic embodiments and descriptions thereof of the present application are used to explain the present application, and do not constitute an improper limitation to the present application. In the drawings:

[0018] Figure 1 is a front sectional structure schematic diagram of the first embodiment of the present utility model;

[0019] Figure 2 is a side half-sectional structure schematic diagram of the first embodiment of the present utility model;

[0020] Figure 3 is a schematic diagram of the closed structure of the receiving funnel of the first embodiment of the present utility model;

[0021] Figure 4Schematic diagram of the opening structure of the receiving funnel in the first embodiment of the present utility model;

[0022] Figure 5 Schematic diagram of the half-sectional structure of the second embodiment of the present utility model;

[0023] Figure 6 Schematic diagram of the structure of the grinding unit in the second embodiment of the present utility model.

[0024] In the figure: 1. Box body; 101. Equipment cavity; 102. Experimental cavity; 103. Maintenance door; 104. Window; 105. Window cover; 106. Limit dead stop;

[0025] 2. Water supply system; 21. Blending box; 22. Pump body; 23. Spray pipe;

[0026] 3. Asphalt bearing assembly; 31. Bearing platform; 311. Sliding frame; 312. Bearing frame; 312a. Side wall; 312b. Bottom plate; 32. Slide rail;

[0027] 4. Receiving funnel; 41. Opening; 42. Rotating shaft; 43. Rotating cover plate; 44. Drainage port;

[0028] 5. First drain pipe; 51. Connecting pipe; 52. Water outlet part;

[0029] 6. Guide plate; 61. Guide groove; 7. Second drain pipe;

[0030] 8. Grinding unit; 81. Transmission shaft; 811. Fixed sleeve; 812. Movable rod; 813. Locking screw; 82. Driving motor; 83. Mounting frame; 84. First gear; 85. Second gear; 86. Grinding block. Detailed implementation manners

[0031] The following will disclose multiple embodiments of the present utility model with diagrams. For the sake of clear illustration, many physical details will be described together in the following narrative. However, it should be understood that these physical details are not used to limit the present utility model. That is to say, in some embodiments of the present utility model, these physical details are not necessary. In addition, for the purpose of simplifying the diagrams, some conventional structures and components will be shown in a simple schematic manner in the diagrams.

[0032] In addition, in the present utility model, descriptions such as "first", "second", etc. are only for descriptive purposes, and do not particularly refer to the meaning of order or sequence, nor are they used to limit the present utility model. They are merely used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0033] Embodiment 1:

[0034] Please refer to Figure 1 - Figure 4 The asphalt pavement water aging experimental equipment of the present utility model includes a box body 1, a water supply system 2, and an asphalt bearing component 3. The box body 1 includes an equipment chamber 101 and an experimental chamber 102. A maintenance door 103 for maintaining the equipment chamber 101 is provided on the box body 1. A window 104 communicating with the experimental chamber 102 is also provided on the box body 1, and a window cover 105 is provided on the window 104;

[0035] The water supply system 2 includes a spray pipe 23 installed at the top of the experimental chamber 102, and a pump body 22 installed in the equipment chamber 101 for supplying water to the spray pipe 23; the pump body 22 can be a water pump, a peristaltic pump, etc.

[0036] The asphalt bearing component 3 includes a bearing platform 31. The bearing platform 31 is slidably connected to the inner wall of the experimental chamber 102 through a slide rail 32. The slide rail 32 is fixedly installed on the experimental chamber 102, and the bearing platform 31 can extend out of the window 104 through the slide rail 32.

[0037] The window cover 105 is rotatably connected to the window 104. A limit stop 106 for restricting the window cover 105 after being rotated and opened to be flush with the upper surface of the slide rail 32 is provided on the window 104; through the settings of the window cover 105 and the limit stop 106, the part of the bearing platform 31 extending out of the window 104 can be effectively carried;

[0038] The bearing platform 31 includes a sliding frame 311. A bearing frame 312 is provided in the center of the sliding frame 311. The bearing frame 312 includes a sealed side wall 312a and a bottom plate 312b fixedly connected to the side wall 312a. The bottom plate 312b is provided with water permeable holes.

[0039] A receiving funnel 4 is further provided inside the experimental chamber 102. An opening 41 adapted to the bearing frame 312 is provided on the front surface of the receiving funnel 4. A rotating cover plate 43 is installed at the bottom of the opening 41 through a rotating shaft 42.

[0040] A drain outlet 44 at the bottom of the receiving funnel 4 is detachably connected to a first drain pipe 5. The first drain pipe 5 includes a connecting pipe 51 connected to the receiving funnel 4 and a water outlet part 52 fixedly connected to the box body 1, and the connecting pipe 51 and the water outlet part 52 are detachably connected.

[0041] A guiding plate 6 is obliquely arranged on the inner wall of the experimental cavity 102. A guiding groove 61 is arranged at the edge of the guiding plate 6, and a second drain pipe 7 is arranged at one end of the guiding groove 61.

[0042] When the embodiment is in use:

[0043] It is necessary to place the asphalt block to be experimented in the bearing frame 312 of the bearing platform 31, and ensure that the size of the asphalt block is equal to the size of the bearing frame 312. Then, the bearing platform 31 is moved on the slide rail 32 through the sliding frame 311. Before moving, the rotating cover plate 43 of the receiving funnel 4 needs to be rotated downward, so that the bearing frame 312 can carry the asphalt block into the receiving funnel 4. Since the size of the bearing frame 312 is adapted to the size of the receiving funnel 4, when the bearing frame 312 enters the receiving funnel 4, the rotating cover plate 43 can close the opening 41 on the receiving funnel 4. Since the side wall 312a of the bearing frame 312 is airtight, the water stains permeated by the asphalt block can be effectively collected through the receiving funnel 4 and the first drain pipe 5 during the simulated rainy day; thus, the water permeability of the asphalt block on a rainy day can be measured;

[0044] When it is necessary to detect the water aging condition of asphalt under acid rain conditions, it needs to be prepared in the dispensing tank 21 of the water supply system 2 and conveyed to the spray pipe 23 through the pump body 22 to simulate a rainy day. The rainwater dripping on the asphalt surface will penetrate from the side and inside of the asphalt block. Thus, two groups of data of the rainwater can be measured through this device respectively, and the relationship between the water permeability of the asphalt and the aging degree of acid rain can be determined according to the water stains in the first drain pipe 5, and the aging degree of the rainwater scouring on the asphalt surface can be determined according to the second drain pipe 7.

[0045] Embodiment 2:

[0046] Please refer to Figure 5 and Figure 6 , as a further improvement of Embodiment 1, to simulate the aging and wear conditions of asphalt blocks under rainy or acid-rainy days, the specific structure further includes a grinding unit 8. The grinding unit 8 includes a transmission shaft 81 vertically installed on the bearing platform 31 and a driving motor 82 for driving the transmission shaft 81 to rotate. A grinding block 86 is detachably installed at the bottom of the transmission shaft 81; the transmission shaft 81 is installed at the top of the experimental cavity 102 through a horizontal bearing.

[0047] The drive shaft 81 includes a fixed sleeve 811 fixedly installed inside a horizontal bearing, and a movable rod 812 movably inserted inside the fixed sleeve 811. A locking screw 813 for tightening the movable rod 812 is provided on the fixed sleeve 811.

[0048] The drive motor 82 is fixedly installed on the top of the box body 1 through a mounting bracket 83, and a first gear 84 is installed on the output shaft of the drive motor 82. A second gear 85 meshing with the first gear 84 is fixedly sleeved on the surface of the fixed sleeve 811.

[0049] When using this device, the height of the drive shaft 81 is adjusted through the locking screw 813 to make the grinding block 86 contact the asphalt block, and then the drive shaft 81 and the grinding block 86 are driven to grind through the drive motor 82, the first gear 84 and the second gear 85.

[0050] The above are only the embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, various changes and modifications can be made to the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the scope of the claims of the present invention.

Claims

1. An asphalt pavement water aging test device, comprising a housing (1), a water supply system (2) and an asphalt bearing assembly (3), characterized in that: The box (1) comprises an equipment chamber (101) and an experimental chamber (102); the box (1) is provided with an inspection door (103) for inspecting the equipment chamber (101); the box (1) is also provided with a window (104) connected to the experimental chamber (102); the window (104) is provided with a window cover (105); The water supply system (2) comprises a spray pipe (23) installed at the top of the experimental chamber (102), and a pump body (22) installed in the equipment chamber (101) for supplying water to the spray pipe (23); The asphalt bearing assembly (3) includes a bearing platform (31), the bearing platform (31) is slidably connected to the inner wall of the experimental chamber (102) via a slide rail (32), the slide rail (32) is fixedly installed on the experimental chamber (102), and the bearing platform (31) can extend out of the window (104) via the slide rail (32).

2. The asphalt pavement water aging test equipment according to claim 1, characterized in that: The bearing platform (31) comprises a sliding frame (311), a bearing frame (312) is provided at the center of the sliding frame (311), the bearing frame (312) comprises a sealed side wall (312a), and a bottom plate (312b) fixedly connected to the side wall (312a), and the bottom plate (312b) is provided with a water permeable hole.

3. The asphalt pavement water aging test equipment according to claim 1, characterized in that: A receiving funnel (4) is also provided inside the experimental chamber (102), and an opening (41) adapted to the bearing frame (312) is provided on the front of the receiving funnel (4), and a rotating cover plate (43) is installed at the bottom of the opening (41) via a rotating shaft (42).

4. The asphalt pavement water aging test equipment according to claim 3 is characterized by: The drainage port (44) at the bottom of the receiving funnel (4) is detachably connected to a first drainage pipe (5), the first drainage pipe (5) comprising a connecting pipe (51) connected to the receiving funnel (4), and a water outlet (52) fixedly connected to the box body (1), the connecting pipe (51) and the water outlet (52) being detachably connected.

5. The asphalt pavement water aging test equipment according to claim 1, characterized in that: A guide plate (6) is obliquely provided on the inner wall of the experimental chamber (102), a guide groove (61) is provided on the edge of the guide plate (6), and a second drainage pipe (7) is provided at one end of the guide groove (61).

6. The asphalt pavement water aging test equipment according to claim 1, characterized in that: The invention also comprises a grinding unit (8), wherein the grinding unit (8) comprises a transmission shaft (81) vertically mounted on a carrier platform (31) and a driving motor (82) for driving the transmission shaft (81) to rotate, and a grinding block (86) is detachably mounted on the bottom of the transmission shaft (81); the transmission shaft (81) is mounted on the top of the experimental chamber (102) via a horizontal bearing.

7. The asphalt pavement water aging test equipment according to claim 6, characterized in that: The transmission shaft (81) comprises a fixed sleeve (811) fixedly mounted inside a horizontal bearing, and a movable rod (812) movably inserted inside the fixed sleeve (811), and a locking screw (813) for tightening the movable rod (812) is provided on the fixed sleeve (811).

8. The asphalt pavement water aging test equipment according to claim 7, characterized in that: The drive motor (82) is fixedly mounted on the top of the box body (1) via a mounting frame (83), and a first gear (84) is mounted on the output shaft of the drive motor (82), and a second gear (85) meshing with the first gear (84) is fixedly sleeved on the surface of the fixed sleeve (811).

9. The asphalt pavement water aging test equipment according to claim 1, characterized in that: The window cover (105) is rotatably connected to the window (104), and a position limiting stop (106) is provided on the window (104) for limiting the window cover (105) to be flush with the upper surface of the slide rail (32) after being rotated and opened.

Images