Device for measuring adhesion performance of asphalt on surface of coarse aggregate

Abstract

The utility model relates to the technical field of asphalt adhesion performance measurement, in particular to a coarse aggregate surface asphalt adhesion performance measuring device which comprises a base, a water tank arranged on the base, a charging basin arranged in the water tank, fixed side plates arranged on two opposite sides of the base and a measuring mechanism movably connected with the fixed side plates. The measuring mechanism is positioned above the charging basin; a heat conduction pipe is arranged in the water tank and located on the outer side of the charging basin. The charging basin is arranged in the water tank, the heat conduction pipe is arranged in the water tank, and the charging basin is uniformly heated by utilizing a water bath method, so that coarse aggregate in the charging basin is uniformly heated, the heating time is shortened, the measurement result is more accurate and reliable, and the actual measurement requirement is met.

Description

Technical Field

[0001] The utility model relates to the technical field of asphalt adhesion performance measurement, in particular to a device for measuring asphalt adhesion performance on a coarse aggregate surface. Background Art

[0002] Asphalt mixture is a general term for a mixture made by mixing mineral aggregate and asphalt binder. The bonding force and adhesion between asphalt and mineral aggregate have a good correlation. The stronger the bonding force, the stronger the asphalt mixture's ability to resist water damage and traffic loads. Therefore, it can be said that the bonding force between asphalt and mineral aggregate has an important relationship with their adhesion.

[0003] The measurement of the adhesion between asphalt and coarse aggregate usually requires heating the coarse aggregate. For example, the Chinese utility model patent with application number 202120036566.5 provides a device for measuring the adhesion between asphalt and coarse aggregate. The beaker is heated by the measuring device, but heating by the beaker can easily cause uneven heating of the coarse aggregate, increase the heating time, and thus lead to inaccurate measurement results, which cannot meet actual measurement needs. Utility Model Content

[0004] The utility model provides a device for measuring the asphalt adhesion performance of a coarse aggregate surface, which solves the technical problem that heating through a beaker may cause uneven heating of the asphalt and the coarse aggregate, thus affecting the accuracy of adhesion measurement.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A device for measuring asphalt adhesion properties on a coarse aggregate surface comprises a base, a water tank disposed on the base, a loading basin disposed in the water tank, fixed side plates disposed on opposite sides of the base, and a measuring mechanism movably connected to the fixed side plates, wherein the measuring mechanism is located above the loading basin;

[0007] A heat conducting pipe is provided inside the water tank and is located outside the charging basin.

[0008] It is further defined that a storage rack is provided in the water tank, and the loading basin is placed on the storage rack.

[0009] It is further defined that a water inlet pipe is provided on one side of the water tank, a water outlet pipe is provided on the other side of the water tank, and the loading basin is located between the water inlet pipe and the water outlet pipe.

[0010] It is further defined that the measuring mechanism includes an upper sleeve, a side connecting plate, a telescopic cylinder and a lower pressure head, the fixed end of the telescopic cylinder is connected to the upper sleeve, the output end of the telescopic cylinder is connected to the lower pressure head, the upper sleeve is located above the lower pressure head, the side connecting plate is arranged on the side of the upper sleeve, the upper sleeve is slidably connected to the corresponding fixed side plate through the side connecting plate, and the lower pressure head is located above the water tank.

[0011] It is further defined that the bottom end surface of the pressing head is provided with a plurality of contact bumps arranged in an array.

[0012] It is further defined that there are multiple telescopic cylinders, and the multiple telescopic cylinders are arranged at intervals in the horizontal direction. The number of the pressing heads is the same as the number of the telescopic cylinders, and the pressing heads and the telescopic cylinders are arranged in a one-to-one correspondence.

[0013] It is further defined that the measuring mechanism also includes a camera, which is connected to the upper plate through a bracket, and the camera is located on the outside of the telescopic cylinder.

[0014] It is further defined that a horizontal guide groove is provided on the fixed side plate, and the side end of the side connecting plate is slidably connected to the horizontal guide groove along the horizontal direction.

[0015] The beneficial effects of the present invention are:

[0016] 1. The utility model sets the charging basin in the water tank and sets a heat pipe in the water tank. The water bath method is used to heat the charging basin evenly, so that the coarse aggregate in the charging basin is heated evenly, shortening the heating time, and ensuring that the measurement results are more accurate and reliable to meet actual measurement needs.

[0017] 2. The utility model sets the downward pressure head at the telescopic end of the telescopic cylinder. By controlling the telescopic amount of the telescopic cylinder, the difficulty of manual measurement is reduced, while the measurement efficiency is improved. It can also more reliably control the downward pressure force, further improving the measurement accuracy and reliability.

[0018] 3. The detection mechanism of the utility model is also convenient for remote observation of the adhesion of asphalt on the lower pressure head by setting a camera. At the same time, it can also archive the measurement situation according to needs, further meeting the actual measurement renewal. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view schematic diagram of an embodiment of the utility model;

[0020] Figure 2 A schematic cross-sectional view of an embodiment of the present utility model;

[0021] Figure 3 This is a schematic cross-sectional view of a water tank according to an embodiment of the present invention;

[0022] Figure 4 This is a schematic cross-sectional view of a charging basin according to an embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of the measuring mechanism of an embodiment of the utility model;

[0024] In the figure: 10. Base; 11. Fixed side panel; 12. Bracket; 13. Sink; 14. Heat pipe; 15. Inner recess; 16. Storage rack; 17. Water inlet pipe; 18. Water outlet pipe; 19. Camera; 20. Loading basin; 21. Handle; 30. Upper plate; 31. Side connecting plate; 32. Telescopic cylinder; 33. Lower pressure head; 34. Contact bump. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. The specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. Specific details such as specific system structures and technologies are proposed in order to more thoroughly understand the embodiments of the present invention. The described embodiments are part of the embodiments of the present disclosure, not all of them. However, it should be clear to those skilled in the art that the present invention can also be implemented in other embodiments without these specific details. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present disclosure.

[0026] The specific implementation of the present utility model will be described in detail below with reference to the accompanying drawings.

[0027] Reference Figure 1-5 As shown, the utility model provides a device for measuring the asphalt adhesion performance of a coarse aggregate surface, comprising a base 10, a water trough 13 arranged on the base 10, a loading basin 20 arranged in the water trough 13, fixed side plates 11 arranged on opposite sides of the base 10, and a measuring mechanism movably connected to the fixed side plates 11.

[0028] Among them, an inner recess 15 is provided in the water tank 13 for holding water to form a water bath environment. A plurality of heat pipes 14 are arranged on the outside of the inner recess 15. The heat pipes 14 are provided in the water tank 13. The plurality of heat pipes 14 are evenly arranged along the outer wall of the inner recess 15. The heat pipes 14 are used to heat the water bath in the inner recess 15. Electric heating can be selected to provide heat to provide a heating environment for the water bath.

[0029] The charging basin 20 is used to hold the coarse aggregate with asphalt on the surface. The charging basin 20 is placed in the inner recess 15. The water bath heating makes the coarse aggregate inside heated more evenly and stably, and the heating time is more reliable.

[0030] Handles 21 are provided on opposite sides of the loading basin 20 to facilitate carrying the loading basin 20 ; preferably, a storage rack 16 is provided in the inner recess 15 to improve the heating uniformity of the loading basin 20 .

[0031] In order to facilitate the replacement of water in the inner recess 15 , a water inlet pipe 17 and a water outlet pipe 18 are provided on the water tank 13 , and both the water inlet pipe 17 and the water outlet pipe 18 are communicated with the inner recess 15 .

[0032] The water inlet pipe 17 and the water outlet pipe 18 are located on opposite sides of the water tank 13 . The position of the water inlet pipe 17 on the water tank 13 is higher than the position of the water outlet pipe 18 on the water tank 13 .

[0033] Preferably, supporting feet are provided at the four top corners of the bottom of the base 10 .

[0034] To further illustrate, there are two fixed side panels 11 , which are disposed on opposite sides of the base 10 , and the measuring mechanism is disposed between the two fixed side panels 11 , and the measuring mechanism is located above the loading basin 20 .

[0035] Specifically, the measuring mechanism includes an upper sleeve plate 30 , a side connecting plate 31 , a telescopic cylinder 32 and a lower pressure head 33 . The upper sleeve plate 30 is sleeved on the outside of the telescopic cylinder 32 , and the lower pressure head 33 is connected to the bottom of the telescopic cylinder 32 .

[0036] There are two side connecting plates 31, and the upper plate 30 is connected between the two side connecting plates 31. The side connecting plates 31 are slidably connected to the fixed side plates 11. During measurement, the telescopic cylinder 32 can slide horizontally along the width direction of the fixed side plates 11 to just above the loading basin 20, and the telescopic cylinder 32 then extends the lower pressure head 33 into the loading basin 20 for sampling.

[0037] In order to improve the reliability and accuracy of sampling, the number of telescopic cylinders 32 can be selected to be three, and the three telescopic cylinders 32 are arranged at intervals in the horizontal direction. The bottom of each telescopic cylinder 32 is connected to a downward pressure head 33, that is, the number of downward pressure heads 33 is three.

[0038] In order to ensure reliable sampling, a plurality of contact bumps 34 are provided on the bottom end surface of the pressing head 33 to increase the contact area.

[0039] The side connecting plate 31 is slidably connected to the fixed side plate 11. Preferably, a horizontal guide groove is opened on the fixed side plate 11, and the horizontal guide groove is arranged along the width direction of the fixed side plate 11. The corresponding end of the side connecting plate 31 cooperates with the horizontal guide groove, so that when the side connecting plate 31 slides along the horizontal guide groove, it drives the telescopic cylinder 32 on the upper sleeve plate 30 to move closer to or away from the loading basin 20 in the horizontal direction.

[0040] During the heating process, the upper plate 30 can be moved to the outside of the charging basin 20 , and after the heating is completed, the upper plate 30 can be moved to the top of the charging basin 20 .

[0041] Further explanation: in order to facilitate the observation of the adhesion of asphalt on the lower pressure head 33, the detection mechanism also includes a camera 19, which is connected to the upper sleeve 30 through the bracket 12. The camera 19 is located on the outside of the telescopic cylinder 32 to avoid blocking the movement of the lower pressure head 33 at the telescopic end of the telescopic cylinder 32.

[0042] When the pressing head 33 is pressed down and retracted by the telescopic cylinder 32, the camera 19 is aligned with the contact protrusion 34. The adhesion condition of the surface of the pressing head 33 can be observed through the camera 19. Video recording and photography can be performed for archiving, making measurement more convenient and quick.

[0043] The camera 19 is preferably a pan-tilt structure so that the camera direction can be rotated, and the asphalt adhesion conditions on the surfaces of different pressure heads 33 can be observed remotely.

[0044] Obviously, the embodiments described above are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0045] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

[0046] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for measuring asphalt adhesion performance on coarse aggregate surface, characterized in that: The device comprises a base (10), a water tank (13) arranged on the base (10), a material loading basin (20) arranged in the water tank (13), fixed side plates (11) arranged on opposite sides of the base (10), and a measuring mechanism movably connected to the fixed side plates (11), wherein the measuring mechanism is located above the material loading basin (20); A heat conducting pipe (14) is provided inside the water tank (13), and the heat conducting pipe (14) is located outside the charging basin (20).

2. The device for measuring asphalt adhesion performance on coarse aggregate surface according to claim 1, characterized in that: A storage rack (16) is provided in the water tank (13), and the loading basin (20) is placed on the storage rack (16).

3. The device for measuring asphalt adhesion performance on coarse aggregate surface according to claim 1, characterized in that: A water inlet pipe (17) is provided on one side of the water tank (13), a water outlet pipe (18) is provided on the other side of the water tank (13), and the loading basin (20) is located between the water inlet pipe (17) and the water outlet pipe (18).

4. The device for measuring asphalt adhesion performance on coarse aggregate surface according to claim 2, characterized in that: The measuring mechanism comprises an upper sleeve (30), a side connecting plate (31), a telescopic cylinder (32) and a lower pressure head (33); the fixed end of the telescopic cylinder (32) is connected to the upper sleeve (30); the output end of the telescopic cylinder (32) is connected to the lower pressure head (33); the upper sleeve (30) is located above the lower pressure head (33); the side connecting plate (31) is arranged on the side of the upper sleeve (30); the upper sleeve (30) is slidably connected to the corresponding fixed side plate (11) through the side connecting plate (31); and the lower pressure head (33) is located above the water tank (13).

5. The device for measuring the asphalt adhesion performance of coarse aggregate surface according to claim 4, characterized in that: The bottom end surface of the pressing head (33) is provided with a plurality of contact protrusions (34) arranged in an array.

6. The device for measuring asphalt adhesion performance on coarse aggregate surface according to claim 5, characterized in that: The number of the telescopic cylinders (32) is multiple, and the multiple telescopic cylinders (32) are arranged at intervals in the horizontal direction. The number of the pressing heads (33) is the same as the number of the telescopic cylinders (32), and the pressing heads (33) and the telescopic cylinders (32) are arranged in a one-to-one correspondence.

7. The device for measuring asphalt adhesion performance on coarse aggregate surface according to claim 6, characterized in that: The measuring mechanism further comprises a camera (19), which is connected to the upper sleeve plate (30) via a bracket (12), and the camera (19) is located outside the telescopic cylinder (32).

8. The device for measuring asphalt adhesion performance on coarse aggregate surface according to claim 7, characterized in that: A horizontal guide groove is provided on the fixed side plate (11), and the side end of the side connecting plate (31) is slidably connected to the horizontal guide groove along the horizontal direction.

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