Device for testing water damage resistance of rotary scouring road surface

Abstract

The invention relates to a rotary scouring pavement water damage resistance testing device, and belongs to the technical field of pavement material detection equipment. Comprising an outer box, an organic glass barrel, a power stirring mechanism, a plurality of sample placing mechanisms, a plurality of limiting mechanisms and a plurality of supporting stand columns, the organic glass barrel is arranged in the outer box, the power stirring mechanism is installed at the top end of the outer box and penetrates through the top end of the outer box and the top end of the organic glass barrel to be arranged in the organic glass barrel, the supporting stand columns are arranged on the inner wall of the bottom end of the organic glass barrel, and the multiple supporting stand columns are arranged around the power stirring mechanism. The multiple limiting mechanisms are arranged at the top ends of the multiple supporting stand columns in a one-to-one correspondence mode, and the multiple sample containing mechanisms are arranged in the multiple limiting mechanisms in a one-to-one correspondence mode and connected with the inner wall of the top end of the organic glass barrel. The device is beneficial for simulating the tangential action effect on the pavement material when the vehicle tire turns, and the accuracy of the experimental result is improved.

Description

Technical Field

[0001] The invention relates to the technical field of pavement material testing equipment, and in particular to a device for testing the water damage resistance of a rotary scouring pavement. Background Art

[0002] In the investigation of highways, it was found that the phenomenon of water damage to the road surface is extremely common and has great harm to the road surface structure. On rainy days, the road surface will be washed by rainwater and the surface will be covered by a water film. Water will also enter the interior of the asphalt pavement structure from the gaps or other paths to damage it. Especially when a vehicle passes, the tires of the vehicle will produce positive pressure on the water on the asphalt pavement in front, squeezing the water into the gaps in the road surface. When the tires pass, they will also produce negative pressure on the water on the rear road surface, sucking the water out of the gaps. The dynamic water pressure formed by this reciprocating process continuously washes the surface of the road surface, eventually causing the road surface to peel off. Therefore, in areas with abundant rainfall, it is necessary to test the anti-scouring property of highway pavement materials to ensure that the pavement materials have sufficient anti-scouring ability.

[0003] The existing methods for testing the scouring resistance of pavement materials are mainly divided into two categories: the first is to scour through a water gun nozzle, but the water gun nozzle only sprays a point, which will lead to inaccurate test results; the second is to immerse the pavement material specimen in water on multiple sides or as a whole, repeatedly apply water pressure to simulate the load effect. The disadvantage is that it does not take into account the tangential force effect of water on the specimen surface caused by vehicle tires turning in actual situations. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a device for testing the water damage resistance of a rotary scouring pavement to solve the above-mentioned problem.

[0005] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: a rotating scouring pavement water damage resistance testing device comprises: an outer box, an organic glass barrel, a power stirring mechanism, a plurality of sample placement mechanisms, a plurality of limiting mechanisms and a plurality of supporting columns; the organic glass barrel is arranged inside the outer box, the power stirring mechanism is installed at the top end of the outer box, and is arranged inside the organic glass barrel after passing through the top end of the outer box and the top end of the organic glass barrel, the supporting columns are arranged on the inner wall of the bottom end of the organic glass barrel, a plurality of the supporting columns are arranged around the power stirring mechanism, a plurality of the limiting mechanisms are arranged one-to-one at the top ends of the plurality of the supporting columns, a plurality of the sample placement mechanisms are arranged one-to-one in the plurality of limiting mechanisms, and are connected to the inner wall of the top end of the organic glass barrel.

[0006] The beneficial effects of the present invention are as follows: the sample placement mechanism is arranged in the organic glass barrel, which is conducive to completely immersing the test piece in water to simulate the influence of water on the scouring of the entire road surface material. At the same time, the dynamic stirring mechanism is conducive to simulating the tangential effect of the vehicle tire on the road surface material when turning under different test piece sizes, different rotation rates and different dynamic water pressure conditions. Therefore, the present invention can more realistically simulate the actual situation of the road surface under rain scouring, and thus make the obtained experimental results more accurate.

[0007] Based on the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, a plurality of through holes are arranged at the top of the organic glass barrel, a plurality of sealing covers are adapted and arranged in the plurality of through holes in a one-to-one correspondence, and the plurality of sealing covers are arranged around the power stirring mechanism.

[0009] The beneficial effect of adopting the above further scheme is that the cover is conducive to hanging the sample placement mechanism on the top of the organic glass barrel, which not only provides pulling force for the sample placement mechanism during the experiment, but also facilitates pulling the sample placement mechanism out of the limiting mechanism to replace the sample.

[0010] Furthermore, the sample placement mechanism includes: a hanging rope, a handle and a hanging basket; the hanging basket is a hollow structure, the handle is arranged at the top of the hanging basket, the two ends of the hanging rope are connected to the handle and the bottom end of the cover in a one-to-one correspondence, and the sample is arranged in the hanging basket.

[0011] The beneficial effect of adopting the above further solution is that the hanging rope and the handle are conducive to pulling the sample in the hanging basket out of the limiting mechanism, and also provide a pulling force for placing the hanging basket in the limiting mechanism.

[0012] Furthermore, the limiting mechanism includes: a placing table, a plurality of limiting rods and a connecting ring; the placing table is arranged at the top end of the supporting column, the plurality of limiting rods are arranged around the placing table, the connecting ring is connected to the top ends of the plurality of limiting rods, and the plurality of limiting rods are arranged around the hanging basket.

[0013] The beneficial effects of adopting the above further scheme are: the placing table is conducive to providing support for the hanging basket during the test, the multiple limit rods are conducive to preventing the hanging basket from rotating with the water flow under the action of the tangential force and centrifugal force of the water flow, and the connecting ring is conducive to preventing the top of the limit rod from swinging significantly due to the action of the water flow.

[0014] Furthermore, the power stirring mechanism includes: a motor, a rotating shaft and a turbine; the motor is installed at the top of the outer box, and the output shaft is connected to one end of the rotating shaft, the rotating shaft passes through the top of the organic glass barrel, and the turbine is arranged inside the organic glass barrel and connected to one end of the rotating shaft away from the motor.

[0015] The beneficial effect of adopting the above further scheme is that the motor is conducive to providing rotational power to the turbine through the rotating shaft, thereby stirring the water in the organic glass barrel and applying tangential force to the sample, thereby simulating the tangential effect of the vehicle tire on the road material when turning.

[0016] Furthermore, the plurality of covers, the plurality of sample placement mechanisms, the plurality of limit mechanisms and the plurality of support columns are all arranged around the rotating shaft.

[0017] The beneficial effect of adopting the above further solution is that it helps to make the tangential force of the water flow generated by the rotation of the turbine act evenly on the samples in the multiple sample placement mechanisms.

[0018] Furthermore, it also includes an electric control box, and the motor is connected to the electric control box.

[0019] The beneficial effect of adopting the above further solution is that the electric control box is conducive to controlling the rotation speed of the motor, thereby simulating the tangential effect of the vehicle tire on the road material when turning at different rotation speeds of the water flow.

[0020] Furthermore, a water inlet and a water outlet are provided on the upper side wall and the lower side wall of the organic glass barrel in a one-to-one correspondence, and the water inlet and the water outlet are both provided with valves for opening and closing the water inlet and the water outlet and adjusting the flow rate.

[0021] The beneficial effect of adopting the above further scheme is that the water inlet and the water outlet cooperate with the valve to facilitate the operation control of adding water to the organic glass barrel and draining water, so as to adjust the size of the dynamic water pressure according to the different water amounts in the organic glass barrel.

[0022] Furthermore, the outer box includes: a cover plate, two side plates, a bottom plate and a plurality of locking screws; the cover plate is arranged above the bottom plate, the side plates are arranged between the cover plate and the bottom plate, and the side plates are connected to the cover plate and the bottom plate through the locking screws.

[0023] The beneficial effect of adopting the above further solution is that the two side panels are conducive to forming a front-to-back through-structure of the outer box, providing support for the fixed connection of the cover plate and also providing guarantee for the stability of the entire device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A front view of the overall structure provided by an embodiment of the present invention;

[0025] Figure 2 A top view of the overall structure provided by an embodiment of the present invention;

[0026] Figure 3 A schematic diagram of fixing a cover plate and a side plate by locking screws provided in an embodiment of the present invention.

[0027] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0028] 1. Outer box; 2. Organic glass barrel; 3. Power stirring mechanism; 4. Sample placing mechanism; 5. Limiting mechanism; 6. Support column; 11. Cover plate; 12. Side plate; 13. Bottom plate; 14. Locking screw; 21. Cover; 22. Water inlet; 23. Water outlet; 31. Motor; 32. Rotating shaft; 33. Turbine; 34. Electric control box; 41. Lifting rope; 42. Handle; 43. Hanging basket; 51. Placing table; 52. Limiting rod; 53. Connecting ring. DETAILED DESCRIPTION

[0029] The principles and features of the present invention are described below. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0030] like Figure 1 and Figure 2 As shown, a rotary scouring pavement water damage resistance testing device comprises: an outer box 1, an organic glass barrel 2, a power stirring mechanism 3, a plurality of sample placement mechanisms 4, a plurality of limiting mechanisms 5 and a plurality of supporting columns 6; the organic glass barrel 2 is arranged inside the outer box 1, the power stirring mechanism 3 is installed at the top end of the outer box 1, and is arranged inside the organic glass barrel 2 after passing through the top end of the outer box 1 and the top end of the organic glass barrel 2, the supporting columns 6 are arranged on the inner wall of the bottom end of the organic glass barrel 2, a plurality of the supporting columns 6 are arranged around the power stirring mechanism 3, a plurality of the limiting mechanisms 5 are arranged one-to-one at the top ends of the plurality of the supporting columns 6, a plurality of the sample placement mechanisms 4 are arranged one-to-one in the plurality of limiting mechanisms 5, and are connected to the inner wall of the top end of the organic glass barrel 2.

[0031] The beneficial effects of the present invention are as follows: the sample placement mechanism is arranged in the organic glass barrel, which is conducive to completely immersing the test piece in water to simulate the influence of water on the scouring of the entire road surface material. At the same time, the dynamic stirring mechanism is conducive to simulating the tangential effect of the vehicle tire on the road surface material when turning under different test piece sizes, different rotation rates and different dynamic water pressure conditions. Therefore, the present invention can more realistically simulate the actual situation of the road surface under rain scouring, and thus make the obtained experimental results more accurate.

[0032] Preferably, Figure 1 and Figure 2 As shown, a plurality of through holes are arranged at the top of the organic glass barrel 2, and a plurality of sealing covers 21 are adapted and arranged in the plurality of through holes in a one-to-one correspondence, and the plurality of sealing covers 21 are arranged around the power stirring mechanism 3.

[0033] The beneficial effect of adopting the above preferred scheme is that the cover is conducive to hanging the sample placement mechanism on the top of the organic glass barrel, which not only provides pulling force for the sample placement mechanism during the experiment, but also facilitates pulling the sample placement mechanism out of the limiting mechanism to replace the sample.

[0034] Preferably, Figure 1 As shown, the sample placement mechanism 4 includes: a hanging rope 41, a handle 42 and a hanging basket 43; the hanging basket 43 is a hollow structure, the handle 42 is arranged at the top of the hanging basket 43, the two ends of the hanging rope 41 are connected to the handle 42 and the bottom end of the cover 21 one by one, and the sample is arranged in the hanging basket 43.

[0035] The beneficial effect of adopting the above preferred solution is that the hanging rope and the handle are conducive to pulling the sample in the hanging basket out of the limiting mechanism, and also provide a pulling force for placing the hanging basket in the limiting mechanism.

[0036] Preferably, Figure 1 As shown, the limiting mechanism 5 includes: a placing platform 51, a plurality of limiting rods 52 and a connecting ring 53; the placing platform 51 is arranged at the top end of the supporting column 6, the plurality of limiting rods 52 are arranged around the placing platform 51, the connecting ring 53 is connected to the top ends of the plurality of limiting rods 52, and the plurality of limiting rods 52 are arranged around the hanging basket 43.

[0037] The beneficial effects of adopting the above-mentioned preferred scheme are: the placing table is conducive to providing support for the hanging basket during the test, the multiple limit rods are conducive to preventing the hanging basket from rotating with the water flow under the action of the tangential force and centrifugal force of the water flow, and the connecting ring is conducive to preventing the top of the limit rod from swinging significantly due to the action of the water flow.

[0038] Preferably, Figure 1 As shown, the power stirring mechanism 3 includes: a motor 31, a rotating shaft 32 and a turbine 33; the motor 31 is installed at the top of the outer box 1, and the output shaft is connected to one end of the rotating shaft 32, the rotating shaft 32 passes through the top of the organic glass barrel 2, and the turbine 33 is arranged inside the organic glass barrel 2 and connected to the end of the rotating shaft 32 away from the motor 31.

[0039] The beneficial effect of adopting the above preferred scheme is that the motor is conducive to providing rotational power to the turbine through the rotating shaft, thereby stirring the water in the organic glass barrel and applying tangential force to the sample, thereby simulating the tangential effect of the vehicle tire on the road material when turning.

[0040] Preferably, Figure 1 and Figure 2 As shown, the plurality of covers 21 , the plurality of sample placement mechanisms 4 , the plurality of limit mechanisms 5 and the plurality of support columns 6 are all arranged around the rotating shaft 32 .

[0041] The beneficial effect of adopting the above preferred solution is that it helps to make the tangential force of the water flow generated by the rotation of the turbine act evenly on the samples in the multiple sample placement mechanisms.

[0042] Preferably, Figure 1 As shown, an electric control box 34 is also included, and the motor 31 is connected to the electric control box 34 .

[0043] The beneficial effect of adopting the above preferred solution is that the electric control box is conducive to controlling the rotation speed of the motor, thereby simulating the tangential effect of the vehicle tire on the road material when turning at different rotation speeds of the water flow.

[0044] Preferably, Figure 1 and Figure 2 As shown, a water inlet 22 and a water outlet 23 are provided on the upper side wall and the lower side wall of the organic glass barrel 2 in one-to-one correspondence, and the water inlet 22 and the water outlet 23 are both provided with valves for opening and closing the water inlet 22 and the water outlet 23 and adjusting the flow rate.

[0045] The beneficial effect of adopting the above preferred solution is that the water inlet and outlet cooperate with the valve to facilitate the operation control of adding water to the organic glass barrel and draining water, thereby adjusting the size of the dynamic water pressure according to the different water amounts in the organic glass barrel.

[0046] Preferably, Figure 2 and Figure 3 As shown, the outer box 1 includes: a cover plate 11, two side plates 12, a bottom plate 13 and a plurality of locking screws 14; the cover plate 11 is arranged above the bottom plate 13, the side plates 12 are arranged between the cover plate 11 and the bottom plate 13, and the side plates 12 are connected to the cover plate 11 and the bottom plate 13 through the locking screws 14.

[0047] It should be noted that: the motor 31 is mounted on the cover plate 11 , and the output shaft passes through the cover plate 11 and is connected to the rotating shaft 32 .

[0048] The beneficial effect of adopting the above preferred solution is that the two side panels are conducive to forming a front-to-back through-structure of the outer box, providing support for the fixed connection of the cover plate and also providing guarantee for the stability of the entire device.

[0049] The working process of the present invention is described below:

[0050] like Figures 1 to 3As shown, first, a sufficient amount of water is poured into the organic glass barrel 2 through the water inlet 22 to immerse the hanging basket 43 and the limiting mechanism 5; then, a sample of a certain size is placed in the hanging basket 43, and the hanging basket 43 is placed on the placement table 51 and is located between multiple limiting rods 52, and the hanging basket 43 is hoisted to the bottom end of the cover 21 by using the handle 42 and the hanging rope 41; then the motor 31 is started, and the motor 31 drives the turbine 33 to rotate in the organic glass barrel 2, thereby causing the water in the organic glass barrel 2 to rotate at a certain speed. During this rotation process, the water exerts a tangential force on the sample, thereby simulating the tangential effect of the vehicle tire on the road surface material when turning. After a period of time, the experimental results are judged by weighing the mass change of the sample before and after the test.

[0051] In the above test process, by replacing samples of different sizes and specifications, the rotation rate of the water is adjusted by adjusting the different speeds of the motor 31 through the electrical control box 34, and the dynamic water pressure exerted on the sample is adjusted by pouring water of different water levels into the organic glass barrel 2, which is helpful to simulate the tangential effect of the vehicle tire on the road material when turning under different variables.

[0052] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0053] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0054] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0056] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0057] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A device for testing the water damage resistance of a rotary scouring pavement, characterized in that: include: An outer box (1), an organic glass barrel (2), a power stirring mechanism (3), a plurality of sample placement mechanisms (4), a plurality of limiting mechanisms (5) and a plurality of supporting columns (6); the organic glass barrel (2) is arranged inside the outer box (1); the power stirring mechanism (3) is installed at the top end of the outer box (1), and is arranged inside the organic glass barrel (2) after passing through the top end of the outer box (1) and the top end of the organic glass barrel (2); the supporting columns (6) are arranged on the inner wall of the bottom end of the organic glass barrel (2); a plurality of supporting columns (6) are arranged around the power stirring mechanism (3); a plurality of limiting mechanisms (5) are arranged one-to-one at the top ends of the plurality of supporting columns (6); a plurality of sample placement mechanisms (4) are arranged one-to-one in the plurality of limiting mechanisms (5) and are connected to the inner wall of the top end of the organic glass barrel (2).

2. According to claim 1, a rotary scouring pavement water damage resistance testing device is characterized in that: The top of the organic glass barrel (2) is provided with a plurality of through holes, and a plurality of sealing covers (21) are adapted and arranged in a one-to-one correspondence in the plurality of through holes, and the plurality of sealing covers (21) are arranged around the power stirring mechanism (3).

3. According to claim 2, a rotary scouring pavement water damage resistance testing device is characterized in that: The sample placement mechanism (4) comprises: a hanging rope (41), a handle (42) and a hanging basket (43); the hanging basket (43) is a hollow structure, the handle (42) is arranged at the top of the hanging basket (43), the two ends of the hanging rope (41) are connected to the handle (42) and the bottom end of the cover (21) in a one-to-one correspondence, and the sample is arranged in the hanging basket (43).

4. A rotary scouring pavement water damage resistance testing device according to claim 3, characterized in that: The limiting mechanism (5) comprises: a placement platform (51), a plurality of limiting rods (52) and a connecting ring (53); the placement platform (51) is arranged at the top end of the supporting column (6), the plurality of limiting rods (52) are arranged around the placement platform (51), the connecting ring (53) is connected to the top ends of the plurality of limiting rods (52), and the plurality of limiting rods (52) are arranged around the hanging basket (43).

5. A rotary scouring pavement water damage resistance testing device according to claim 4, characterized in that: The power stirring mechanism (3) comprises: a motor (31), a rotating shaft (32) and a turbine (33); the motor (31) is mounted on the top of the outer box (1), and the output shaft is connected to one end of the rotating shaft (32), the rotating shaft (32) passes through the top of the organic glass barrel (2), and the turbine (33) is arranged inside the organic glass barrel (2) and connected to one end of the rotating shaft (32) away from the motor (31).

6. A rotary scouring pavement water damage resistance testing device according to claim 5, characterized in that: The plurality of sealing covers (21), the plurality of sample placement mechanisms (4), the plurality of position limiting mechanisms (5) and the plurality of supporting columns (6) are all arranged around the rotating shaft (32).

7. A rotary scouring pavement water damage resistance testing device according to claim 5, characterized in that: It also includes an electric control box (34), and the motor (31) is connected to the electric control box (34).

8. The device for testing the water damage resistance of a rotary scouring pavement according to claim 1, characterized in that: A water inlet (22) and a water outlet (23) are provided on the upper side wall and the lower side wall of the organic glass barrel (2) in a one-to-one correspondence, and the water inlet (22) and the water outlet (23) are both provided with valves for opening and closing the water inlet (22) and the water outlet (23) and adjusting the flow rate.

9. The device for testing the water damage resistance of a rotary scouring pavement according to claim 1, characterized in that: The outer box (1) comprises: a cover plate (11), two side plates (12), a bottom plate (13) and a plurality of locking screws (14); the cover plate (11) is arranged above the bottom plate (13), the side plates (12) are arranged between the cover plate (11) and the bottom plate (13), and the side plates (12) are connected to the cover plate (11) and the bottom plate (13) via the locking screws (14).

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