Asphalt dynamic viscosity detection device

Abstract

The asphalt dynamic viscosity detection device comprises a capillary U-shaped pipe, a base and a clamping assembly, the capillary U-shaped pipe comprises an open end and a closed end, the base comprises a body and a first limiting part, the first limiting part is arranged on the body, the first limiting part comprises a supporting surface and a limiting surface, the supporting surface is parallel to the plane of the base, and the limiting surface is parallel to the plane of the base. The clamping assembly comprises a clamping part, a height adjusting mechanism and a supporting rod, the supporting rod is fixedly connected with the body, the axis of the supporting rod is perpendicular to the plane of the body, and the height adjusting mechanism reciprocates along the axis of the supporting rod. The axis of the height adjusting mechanism is perpendicular to the axis of the supporting rod, the clamping part is fixedly connected with the height adjusting mechanism, the clamping part and the height adjusting mechanism are coaxial, and the clamping part is used for clamping the opening end of the U-shaped capillary tube. According to the utility model, the problem that the viscous liquid is hung on the wall when being filled into the capillary U-shaped tube is solved, and the viscosity detection accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of testing instruments, in particular to an asphalt dynamic viscosity detection device. Background Art

[0002] The results of asphalt dynamic viscosity tests are of great significance for determining the quality and applicable range of asphalt, as asphalt is a widely used material in road construction. Therefore, accurate asphalt dynamic viscosity tests are crucial for ensuring the quality and safety of road projects.

[0003] In the prior art, the viscosity of asphalt is usually tested by the vacuum decompression capillary method. The capillary U-shaped tube used consists of a capillary tube and a loading tube. After heating the asphalt, it is injected into the capillary U-shaped tube from the loading tube. The sample should not stick to the tube wall. The capillary U-shaped tube filled with the sample is placed in an electric oven and kept warm for ten minutes. After taking it out of the oven, it is cooled at room temperature for two minutes and then installed in a constant temperature water bath maintaining the test temperature. The vacuum system is connected to the capillary U-shaped tube, the valve is closed, and the vacuum pump is started to make the vacuum degree reach 40 KPa. After 30 minutes in the constant temperature water bath, the decompression system valve is opened. When the asphalt is sucked to the first marking line, two stopwatches are started, and the time for continuously passing through a pair of marking lines is measured to calculate the asphalt viscosity. During the process of testing the viscosity of asphalt, the problem of asphalt wall hanging easily occurs. Wall hanging will cause uneven distribution of asphalt in the capillary U-shaped tube, directly resulting in inaccurate injection volume of the sample, affecting the results of asphalt dynamic viscosity tests, reducing the test accuracy, and being unable to meet the high requirements for fluid viscosity tests in modern industrial production. Therefore, the present invention proposes a new type of asphalt dynamic viscosity detection device to solve the above problems. Summary of the Invention

[0004] Aiming at the deficiencies existing in the prior art, the utility model provides an asphalt dynamic viscosity detection device, which solves the problem that in the prior art, during the process of loading asphalt into the capillary U-shaped tube, asphalt wall hanging occurs due to the inclination of the capillary U-shaped tube, reducing the detection accuracy.

[0005] According to an embodiment of the present utility model, an asphalt dynamic viscosity detection device includes a capillary U-shaped tube, a base, and a clamping assembly. The capillary U-shaped tube includes an open end and a closed end. The base includes a body and a first limiting portion. The first limiting portion is disposed on the body. The first limiting portion includes a supporting surface and a limiting surface. The supporting surface is parallel to the plane of the base, and the supporting surface and the limiting surface are perpendicular to each other. The supporting surface is used to support the closed end, and the limiting surface abuts against the closed end. The clamping assembly includes a clamping portion and a support rod. The support rod is fixedly connected to the body. The axis of the support rod is perpendicular to the plane of the body. The clamping portion is fixedly connected to the support rod. The axis of the clamping portion and the axis of the support rod are perpendicular to each other, and the clamping portion faces the first limiting portion. The clamping portion is used to clamp the open end.

[0006] Further, a guiding member is further included. The guiding member includes a second limiting portion and a conduit. The second limiting portion is fixedly connected to the conduit. The axis of the conduit is perpendicular to the plane of the second limiting portion. The second limiting portion fits with the closed end. The conduit is placed into the capillary U-shaped tube from the open end and points to the closed end, and the axis of the conduit is parallel to the axis of the capillary U-shaped tube.

[0007] Further, the guiding member further includes a convex portion. The inner wall of the convex portion abuts against the outer wall of the open end.

[0008] Further, an anti-slip pad is provided on the side wall of the clamping portion that fits with the open end.

[0009] Further, a flexible material is attached to the supporting surface of the first limiting portion.

[0010] Further, the clamping assembly includes a height adjusting mechanism. The height adjusting mechanism reciprocates along the axis of the support rod. The axis of the height adjusting mechanism is perpendicular to the axis of the support rod. The clamping portion is fixedly connected to the height adjusting mechanism, and the clamping portion and the height adjusting mechanism are coaxial.

[0011] Further, the clamping assembly is provided with a plurality of clamping portions. All the clamping portions are connected to the height adjusting mechanism. The body is provided with a plurality of the first limiting portions. The first limiting portions are arranged in parallel.

[0012] Further, the base further includes a horizontal adjusting member. The horizontal adjusting member is used to adjust the levelness of the base.

[0013] Compared with the prior art, the utility model has the following beneficial effects: When the asphalt dynamic viscosity detection device is in use, the base is placed on a horizontal plane. The supporting surface of the first limiting part abuts against the bottom surface of the closed end to support the capillary U-shaped tube, and the limiting surface abuts against the wall surface of the closed end to limit the closed end of the capillary U-shaped tube. The axis of the support rod is perpendicular to the plane of the main body. The clamping part is fixedly connected to the support rod, and the axis of the clamping part is perpendicular to the axis of the support rod. The clamping part fixes the open section of the capillary U-shaped tube to prevent the capillary U-shaped tube from falling off. Moreover, the clamping part faces the first limiting part. The clamping part and the first limiting part cooperate to further limit the capillary U-shaped tube and make the axis of the capillary U-shaped tube perpendicular to the plane of the base, avoiding asphalt wall hanging caused by the inclination of the capillary U-shaped tube during the process of filling asphalt into the capillary U-shaped tube in viscosity detection, improving the stability of the capillary U-shaped tube, and improving the viscosity detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of an asphalt dynamic viscosity detection device according to an embodiment of the utility model;

[0015] Figure 2 is a schematic structural diagram of the first limiting part in the asphalt dynamic viscosity detection device according to an embodiment of the utility model;

[0016] Figure 3 is a schematic structural diagram of the guiding part in the asphalt dynamic viscosity detection device according to an embodiment of the utility model;

[0017] Figure 4 is a schematic structural diagram of the horizontal adjustment part in the asphalt dynamic viscosity detection device according to an embodiment of the utility model.

[0018] In the above-mentioned drawings: 1. Capillary U-shaped tube; 11. Open end; 12. Closed end; 2. Base; 21. First limiting part; 211. Limiting surface; 212. Supporting surface; 22. Main body; 23. Horizontal adjustment part; 231. Level gauge; 232. Adjusting part; 2321. Adjusting bolt; 2322. Fixed seat; 3. Clamping assembly; 31. Clamping part; 32. Height adjustment mechanism; 33. Support rod; 4. Guiding part; 41. Second limiting part; 42. Conduit; 43. Protruding part. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The technical solutions in the utility model will be further described below with reference to the drawings and embodiments.

[0020] As Figure 1 and Figure 2As shown in the figure, an asphalt dynamic viscosity detection device is proposed in an embodiment of the present utility model, which includes a capillary U-shaped tube 1, a base 2 and a clamping assembly 3. The capillary U-shaped tube 1 includes an open end 11 and a closed end 12. The base 2 includes a main body 22 and a first limiting portion 21. The first limiting portion 21 includes a supporting surface 212 and a limiting surface 211. The supporting surface 212 is parallel to the plane of the main body 22, and the limiting surface 211 is perpendicular to the supporting surface 212. The supporting surface 212 abuts against the closed end 12 to provide vertical support for the capillary U-shaped tube 1. Since the limiting surface 211 is perpendicular to the supporting surface 212 and the limiting surface 211 abuts against the wall surface of the closed end 12, it plays a limiting role on the wall surface of the closed end 12. The bottom surface and the wall surface cooperate to complete the limitation of the capillary U-shaped tube 1, making the axis of the capillary U-shaped tube 1 perpendicular to the plane of the base 2, reducing the risk of asphalt wall hanging when the asphalt is filled into the capillary U-shaped tube 1, and improving the accuracy of the test viscosity test result;

[0021] The clamping assembly 3 includes a clamping portion 31 and a support rod 33. The support rod 33 is fixedly connected to the base 2, making the support rod 33 more stable when bearing a load and improving the stability of the overall structure. The axis of the support rod 33 is perpendicular to the plane of the base 2. The clamping portion 31 is fixedly connected to the support rod 33. The axis of the clamping portion 31 is perpendicular to the axis of the support rod 33. The clamping portion 31 is used to clamp the open end 11 of the capillary U-shaped tube 1. Since the axis of the support rod 33 is perpendicular to the plane of the base 2 and the axis of the clamping portion 31 is perpendicular to the axis of the support rod 33, the axis of the clamping portion 31 is parallel to the plane of the base 2. The clamping portion 31 fixes the open end 11 of the capillary U-shaped tube 1, preventing the capillary U-shaped tube 1 from falling off. And the clamping portion 31 faces the first limiting portion 21. The clamping portion 31 and the first limiting portion 21 cooperate to jointly fix the capillary U-shaped tube 1, improving the stability of the capillary U-shaped tube 1 and reducing the risk of asphalt wall hanging caused by the inclination of the capillary U-shaped tube 1 during the process of filling the asphalt into the capillary U-shaped tube 1, thereby effectively improving the test accuracy.

[0022] The working process of the asphalt dynamic viscosity detection device provided in this embodiment is as follows: First, place the base 2 on a horizontal plane, then insert the closed end 12 of the capillary U-shaped tube 1 into the first limiting part 21, and use the clamping part 31 to clamp the open end 11 of the capillary U-shaped tube 1, and cooperate with the first limiting part 21 to complete the fixation of the capillary U-shaped tube 1. Since the limiting surface 211 of the first limiting part 21 is perpendicular to the plane of the base 2, the limiting surface 211 of the first limiting part 21 abuts against the wall surface of the closed end 12 of the capillary U-shaped tube 1, making the axis of the capillary U-shaped tube 1 perpendicular to the plane of the base 2. The axis of the clamping part 31 is parallel to the plane of the main body 22, the clamping part 31 faces the first limiting part 21, and the clamping part 31 clamps the open end 11 of the capillary U-shaped tube 1, further ensuring that the axis of the capillary U-shaped tube 1 is perpendicular to the plane of the base 2, reducing the risk of asphalt wall hanging caused by the inclination of the capillary U-shaped tube 1 during the process of loading asphalt into the capillary U-shaped tube 1, and at the same time improving the stability of the capillary U-shaped tube 1 and the accuracy of viscosity detection.

[0023] As Figure 3 shown, in a more detailed embodiment, the asphalt dynamic viscosity detection device further includes a guiding member 4. The guiding member 4 includes a second limiting part 41 and a conduit 42. The second limiting part 41 is fixedly connected to the conduit 42. The axis of the conduit 42 is perpendicular to the plane of the second limiting part 41. The second limiting part 41 fits with the closed end 12, so that the conduit 42 is placed in the capillary U-shaped tube 1 from the open end 11 and points to the closed end 12. Since the axis of the conduit 42 is perpendicular to the plane of the second limiting part 41 and the second limiting part 41 fits with the closed end 12, the axis of the conduit 42 is parallel to the axis of the capillary U-shaped tube 1. Asphalt is loaded into the capillary U-shaped tube 1 through the drainage of the conduit 42. Since the conduit 42 directly extends into the capillary U-shaped tube 1 and the axis of the conduit 42 is parallel to the axis of the capillary U-shaped tube 1, the occurrence of asphalt wall hanging can be further avoided, and the accuracy of the test result can be improved.

[0024] On the basis of the above embodiment, further, the guiding member 4 further includes a convex part 43. The inner wall of the convex part 43 fits with the outer wall of the open end 11. Since the inner wall of the convex part 43 fits with the outer wall of the open end 11 of the capillary U-shaped tube 1, the stability of the guiding member 4 is improved. The convex part 43 and the conduit 42 are coaxial, so that the axis of the conduit 42 is coaxial with the open end 11. Since the convex part 43 abuts against the open end 11, it limits the conduit 42 and makes the axis of the conduit 42 coaxial with the open end 11, improving the stability of the conduit 42 in guiding the injection of asphalt into the capillary U-shaped tube 1, further reducing the risk of asphalt wall hanging, and improving the accuracy of viscosity detection.

[0025] In an embodiment of another aspect, an anti-slip pad is provided on the side wall of the clamping portion 31 that fits with the open end 11. When the clamping portion 31 clamps the open end 11, the anti-slip pad increases the friction between the clamping portion 31 and the open end 11, further enhancing the stability of the capillary U-shaped tube 1.

[0026] In an embodiment of another aspect, a flexible material is further provided on the supporting surface 212 of the limiting portion. When the limiting portion abuts against the closed end 12 of the capillary U-shaped tube 1, during the contact and subsequent abutting process, the flexible material reduces rigidity, mitigates impact, protects the bottom surface of the closed end 12, improves the stability of the capillary U-shaped tube 1, and thus improves the test accuracy.

[0027] In an embodiment of another aspect, the clamping assembly 3 includes a height adjustment mechanism 32. The height adjustment mechanism 32 reciprocates along the axis of the support rod 33. The axis of the height adjustment mechanism 32 is perpendicular to the axis of the support rod 33. The clamping portion 31 is fixedly connected to the height adjustment mechanism 32 and is coaxial with the height adjustment mechanism 32. The clamping portion 31 moves with the height adjustment mechanism 32. By adjusting the height of the height adjustment mechanism 32, the height of the clamping portion 31 can be adjusted to adapt to capillary U-shaped tubes 1 of different heights.

[0028] In an embodiment of another aspect, the clamping assembly 3 has a plurality of the clamping portions 31. The clamping portions 31 are all fixedly connected to the height adjustment mechanism 32, and multiple capillary U-shaped tubes 1 can be clamped simultaneously for viscosity testing. Correspondingly, a plurality of the first limiting portions 21 are provided on the main body 22. The first limiting portions 21 are arranged in parallel. The plurality of clamping portions 31 and the plurality of first limiting portions 21 cooperate together to adapt to multiple capillary U-shaped tubes 1, improving the detection efficiency of the asphalt dynamic viscosity detection device.

[0029] As Figure 4 shown, in an embodiment of another aspect, the base 2 further includes a horizontal adjustment member 23 for adjusting the levelness of the base 2. When the levelness of the plane on which the base 2 is placed is insufficient, by adjusting the horizontal adjustment member 23, the levelness of the base 2 is improved to make the base 2 horizontal, thereby improving the verticality of the capillary U-shaped tube 1, better avoiding asphalt wall hanging during the process of filling the capillary U-shaped tube 1 with asphalt, and improving the accuracy of viscosity detection. Specifically, as Figure 4As shown, the horizontal adjustment mechanism includes a spirit level 231 and a plurality of adjustment parts 232. The adjustment parts 232 include a plurality of adjustment bolts 2321 and a plurality of fixing seats 2322. Threaded holes are provided on the fixing seats 2322, and a corresponding plurality of threaded through holes are provided on the body 22. The fixing seats 2322 are connected to the body 22 through the adjustment bolts 2321. By turning the adjustment bolts 2321, the height of the adjustment parts 232 is adjusted to realize the adjustment of the levelness of the base 2, and whether the base 2 is level is observed by observing the horizontal line of the spirit level 231.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. An asphalt dynamic viscosity detection device, comprising a capillary U-shaped tube, a base and a clamping assembly, wherein the capillary U-shaped tube comprises an open end and a closed end, characterized in that: The base includes a main body and a first limiting portion, the first limiting portion is arranged on the main body, the first limiting portion includes a supporting surface and a limiting surface, the supporting surface is parallel to the plane of the base, the supporting surface and the limiting surface are perpendicular to each other, the supporting surface is used to support the closed end, and the limiting surface abuts against the closed end, the clamping assembly includes a clamping portion and a support rod, the support rod is fixedly connected to the main body, the axis of the support rod is perpendicular to the plane of the main body, the clamping portion is fixedly connected to the support rod, the axis of the clamping portion and the axis of the support rod are perpendicular to each other, and the clamping portion is opposite to the first limiting portion, and the clamping portion is used to clamp the open end.

2. The asphalt dynamic viscosity detection device according to claim 1, characterized in that: It also includes a guide member, which includes a second limiting portion and a catheter, the second limiting portion is fixedly connected to the catheter, the axis of the catheter is perpendicular to the plane of the second limiting portion, the second limiting portion is in contact with the closed end, the catheter is placed in the capillary U-shaped tube from the open end, pointing to the closed end, and the axis of the catheter is parallel to the axis of the capillary U-shaped tube.

3. The asphalt dynamic viscosity detection device according to claim 2, characterized in that: The guide member further includes a protrusion, and an inner wall of the protrusion abuts against an outer wall of the opening end.

4. The asphalt dynamic viscosity detection device according to claim 1, characterized in that: An anti-slip pad is arranged on the side wall where the clamping portion is in contact with the opening end.

5. The asphalt dynamic viscosity detection device according to claim 1, characterized in that: The supporting surface of the first limiting portion is bonded with a flexible material.

6. The asphalt dynamic viscosity detection device according to claim 1, characterized in that: The clamping assembly includes a height adjustment mechanism, which reciprocates along the axis of the support rod. The axis of the height adjustment mechanism is perpendicular to the axis of the support rod. The clamping part is fixedly connected to the height adjustment mechanism, and the clamping part and the height adjustment mechanism are coaxial.

7. The asphalt dynamic viscosity detection device according to claim 6, characterized in that: The clamping assembly is provided with a plurality of clamping parts, and the clamping parts are all connected to the height adjustment mechanism. The main body is provided with a plurality of the first limiting parts, and the first limiting parts are arranged in parallel.

8. The asphalt dynamic viscosity detection device according to claim 1, characterized in that: The base also includes a horizontal adjustment member, and the horizontal adjustment member is used to adjust the horizontality of the base.

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