A scraping auxiliary assembly for asphalt softening point test rings

Abstract

The utility model relates to bitumen test technical field especially relates to a kind of scraping auxiliary group device for asphalt softening point test ring, including the base for fixing test ring inner ring, and the fixed plate of test ring outer ring;At least two positioning grooves are equipped on the base, and the top surface both sides of the base are equipped with positioning column;Fixed plate is equipped with the clamping hole corresponding with the positioning groove one by one, the central axis of the clamping hole coincides with the central axis of the positioning groove, the radius of the clamping hole is greater than the radius of the positioning groove, fixed plate is equipped with the positioning hole being adapted with the positioning column, and the positioning column can be embedded in the positioning hole.The utility model structure is simple, can improve softening asphalt point test accuracy and scraping efficiency.

Description

Technical Field

[0001] This utility model relates to the field of asphalt testing technology, and in particular to a scraping auxiliary device for asphalt softening point test rings. Background Technology

[0002] The standard "Test Procedures for Asphalt and Asphalt Mixtures in Highway Engineering" (JTG E20-2011) provides a method for testing the softening point (T 0606-2011) of asphalt using the ring and ring method. According to the existing standard, before testing the softening point, the sample needs to be scraped off the ring surface with a hot scraper until it is flush with the ring surface. However, due to the small size of the test ring (typically about 23 mm in outer diameter and 6.4 mm in height), the accuracy of its fixing and scraping operations directly affects the reliability of the test data.

[0003] In the existing operation, the scraping operation on the test ring is done manually one by one. This operation method has the following disadvantages: (1) The unevenness of the scraped surface of the sample will lead to uneven heating area during the softening point test, and the measured temperature can deviate from the true softening point by ±1.5℃; (2) Manual scraping one by one cannot meet the needs of batch testing; (3) There are many human interference factors: hand tremors, changes in the angle of the scraper and other human factors are difficult to control, which affects the repeatability of the test. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art. This invention provides a scraping auxiliary device for asphalt softening point test rings, which has a simple structure and can improve the accuracy and scraping efficiency of softened asphalt point tests.

[0005] To solve the above problems, this utility model proposes a scraping auxiliary device for asphalt softening point test rings, including a base for fixing the inner ring of the test ring and a fixing plate for fixing the outer ring of the test ring.

[0006] The base is provided with at least two positioning grooves, and positioning posts are provided on both sides of the top surface of the base; the fixing plate is provided with locking holes that correspond one-to-one with the positioning grooves, the central axis of the locking hole coincides with the central axis of the positioning groove, the radius of the locking hole is larger than the radius of the positioning groove, and the fixing plate is provided with positioning holes that are adapted to the positioning posts, and the positioning posts can be embedded in the positioning holes.

[0007] As an improvement to the above technical solution, the test ring includes an inner ring and an outer ring, the inner ring being located at one end of the outer ring, and the centers of the inner ring and the outer ring coinciding.

[0008] The inner ring portion can be inserted into the positioning groove, and the outer ring portion can be inserted into the locking hole, which can limit and fix the outer ring portion.

[0009] As an improvement to the above technical solution, the depth of the card hole is consistent with the height of the outer ring portion.

[0010] As an improvement to the above technical solution, the ratio of the diameter of the positioning groove to the diameter of the card hole is 1:(1.1-1.3).

[0011] As an improvement to the above technical solution, one end of the base is provided with an outwardly extending handle.

[0012] As an improvement to the above technical solution, a scraper is also included, the scraper including a scraper body and a blade portion formed by bending the scraper body to one side;

[0013] The bending angle between the blade and the scraper body is 130-165°.

[0014] As an improvement to the above technical solution, the scraper body is provided with a transition groove at the bend transition point with the blade.

[0015] As an improvement to the above technical solution, the transition groove is an arc-shaped groove, and the line segment of the longitudinal section of the transition groove is externally tangent to the line segment of the longitudinal section of the blade.

[0016] The following are the beneficial effects of implementing this utility model:

[0017] This utility model provides a scraping auxiliary device for asphalt softening point test rings, including a base for fixing the inner ring of the test ring and a fixing plate for fixing the outer ring of the test ring. Specifically, the base has a positioning groove, and the fixing plate has a locking hole that matches the positioning groove. The base and fixing plate are fixed by positioning pins embedded in the positioning holes, thus limiting the relative movement between the base and the fixing plate. This allows the test ring, fixed by the base and fixing plate, to be relatively fixed on the scraping auxiliary device, facilitating the user to directly scrape off the overflowing asphalt from the test ring with a scraper, and enabling simultaneous batch operations. This improves the accuracy and operational efficiency of asphalt softening point testing. Attached Figure Description

[0018] Figure 1 This is a top view of a scraping auxiliary device according to an embodiment of the present invention;

[0019] Figure 2 This is a cross-sectional view of the test ring according to an embodiment of the present invention;

[0020] Figure 3 This is a cross-sectional view of a scraper according to an embodiment of the present invention. Detailed Implementation

[0021] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0022] See Figures 1 to 3 As shown, this utility model embodiment provides a scraping auxiliary device for asphalt softening point test rings, including a base 2 for fixing the inner ring of the test ring 3 and a fixing plate 1 for fixing the outer ring of the test ring 3.

[0023] This embodiment provides a scraping auxiliary device for fixing the test ring 3 to improve scraping efficiency and ensure that the scraping meets the requirements, thereby reducing human error in the test.

[0024] Specifically, the base 2 is provided with at least two positioning grooves 21, and positioning posts 22 are provided on both sides of the top surface of the base 2; the fixing plate 1 is provided with locking holes 11 corresponding to the positioning grooves 21 one by one, the central axis of the locking hole 11 coincides with the central axis of the positioning groove 21, the radius of the locking hole 11 is larger than the radius of the positioning groove 21, and the fixing plate 1 is provided with positioning holes 12 that are adapted to the positioning posts 22, and the positioning posts 22 can be embedded in the positioning holes 12.

[0025] Working principle of this utility model embodiment:

[0026] After the test ring 3 cools, it is placed into the positioning groove 21 of the base 2. Then, the fixing plate 1 is placed on the base 2. The positioning post 22 on the base 2 is aligned with the positioning hole 12 on the fixing plate 1. The positioning post 22 is embedded in the positioning hole 12 to serve as a guide. The outer ring 32 of the test ring 3 is inserted into the locking hole 11 and fixed in place by the locking hole 11. Hold the scraper handle and move the scraper laterally at a uniform speed to scrape off the excess asphalt on the ring surface. Since the base 2 has multiple positioning grooves 21, in the multi-station mode of this scraping auxiliary device, after scraping a single test ring, continue to move the scraper to the adjacent positioning unit and repeat the operation until all test rings have been processed.

[0027] This utility model provides a scraping auxiliary device for asphalt softening point test rings, including a base 2 for fixing the inner ring of the test ring 3 and a fixing plate 1 for fixing the outer ring of the test ring 3. Specifically, the base 2 has a positioning groove 21, and the fixing plate 1 has a locking hole 11 that matches the positioning groove 21. The base 2 and the fixing plate 1 are fixed by positioning pins 12 inserted into positioning holes 22 to limit relative movement between them. This allows the test ring 3, fixed by the base 2 and the fixing plate 1, to be relatively fixed on the scraping auxiliary device, facilitating the user to directly scrape off the overflowing asphalt from the test ring 3 with a scraper, and enabling simultaneous batch operations. This improves the accuracy and operational efficiency of the asphalt softening point test.

[0028] In some embodiments, the test ring 3 includes an inner ring portion 31 and an outer ring portion 32, wherein the inner ring portion 31 is disposed at one end of the outer ring portion 32, and the center of the inner ring portion 31 coincides with the center of the outer ring portion 32;

[0029] The inner ring portion 31 can be inserted into the positioning groove 21, and the outer ring portion 32 can be inserted into the locking hole 11, which can limit and fix the outer ring portion 32.

[0030] It should be noted that the positioning groove 21 limits and fixes the inner ring 31 of the test ring 3, and the outer ring 32 of the test ring extends into the retaining hole 11, which limits and fixes the outer ring 32 to restrict the relative movement between the outer ring 32 and the fixing plate 1. This ensures that the test ring 3 cannot wobble when the scraper 4 scrapes off the sample overflowing from the surface of the outer ring 32, effectively reducing human error during scraping.

[0031] Preferably, the depth of the clasp 11 is consistent with the height of the outer ring portion 32. When the depth of the clasp 11 is consistent with the height of the outer ring portion 32, after the outer ring portion 32 extends into the clasp 11, its end face is flush with the surface of the fixing plate 1, and the scraper 4 directly scrapes the sample on the test ring along the surface of the fixing plate 4, ensuring the flatness of the scraped surface.

[0032] More preferably, the ratio of the diameter of the positioning groove 21 to the diameter of the card hole 11 is 1:(1.1-1.3).

[0033] In some embodiments, the system further includes a scraper 4, which comprises a scraper body 41 and a blade portion 42 formed by bending the scraper body 41 to one side. Firstly, it reduces material adhesion and frictional resistance: the larger bending angle reduces the contact area between the blade portion 42 and the asphalt, similar to the effect of a blade's back angle, effectively reducing frictional resistance during the leveling process and preventing asphalt material from adhering to the surface of the scraper 4, thus avoiding surface roughening or scratches and ensuring more uniform leveling. Secondly, it provides sufficient structural support, similar to the reinforcing effect of a wedge angle, making the scraper 4 less prone to deformation or wear during high-load leveling operations, maintaining long-term stability. Finally, it helps maintain uniform pressure on the scraper 4, preventing pressure fluctuations caused by improper angles, thereby reducing ripples or unevenness on the asphalt surface and achieving a more consistent smoothness.

[0034] Ideally, the bending angle between the blade portion 42 and the scraper body 41 is 130-165°. Examples include 130°, 140°, 150°, and 160°, but the angle is not limited to these.

[0035] In some embodiments, the scraper body 41 has a transition groove 43 at the bend where it meets the blade 42. The transition groove 43 optimizes the stress distribution in the bend area, significantly reducing stress concentration at the connection between the scraper body 41 and the blade 42. This makes the scraper less prone to fatigue cracks or plastic deformation during high-pressure leveling operations, extending its service life. The transition groove 43 also forms a local chip-retaining space, temporarily accommodating asphalt debris detached during leveling, reducing material accumulation in the transition area, and preventing scratches or surface unevenness caused by debris retention.

[0036] Preferably, the transition groove 43 is an arc-shaped groove, and the line segment of the longitudinal section of the transition groove 43 is externally tangent to the line segment of the longitudinal section of the blade portion 42.

[0037] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A scraping auxiliary device for asphalt softening point test rings, characterized in that, Includes a base for fixing the inner ring of the test ring, and a fixing plate for fixing the outer ring of the test ring; The base is provided with at least two positioning grooves, and positioning posts are provided on both sides of the top surface of the base; the fixing plate is provided with locking holes that correspond one-to-one with the positioning grooves, the central axis of the locking hole coincides with the central axis of the positioning groove, the radius of the locking hole is larger than the radius of the positioning groove, and the fixing plate is provided with positioning holes that are adapted to the positioning posts, and the positioning posts can be embedded in the positioning holes.

2. The scraping auxiliary assembly device as described in claim 1, characterized in that, The test ring includes an inner ring and an outer ring, the inner ring is located at one end of the outer ring, and the centers of the inner ring and the outer ring coincide. The inner ring portion can be inserted into the positioning groove, and the outer ring portion can be inserted into the locking hole, which can limit and fix the outer ring portion.

3. The scraping auxiliary assembly device as described in claim 2, characterized in that, The depth of the card hole is the same as the height of the outer ring.

4. The scraping auxiliary assembly device as described in claim 3, characterized in that, The ratio of the diameter of the positioning groove to the diameter of the card hole is 1:(1.1-1.3).

5. The scraping auxiliary assembly device as described in claim 1, characterized in that, One end of the base is provided with an outwardly extending handle.

6. The scraping auxiliary assembly device as described in claim 1, characterized in that, It also includes a scraper, which includes a scraper body and a blade portion formed by bending the scraper body to one side; The bending angle between the blade and the scraper body is 130-165°.

7. The scraping auxiliary assembly device as described in claim 6, characterized in that, The scraper body has a transition groove at the bend where it meets the blade.

8. The scraping auxiliary assembly device as described in claim 7, characterized in that, The transition groove is an arc-shaped groove, and the line segment of the longitudinal section of the transition groove is externally tangent to the line segment of the longitudinal section of the blade.

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