Asphalt stratified sampling device

Abstract

The utility model relates to the technical field of road engineering materials, in particular to an asphalt stratified sampling device which comprises a sample placing table, an asphalt sample is arranged on the sample placing table, and two limiting pieces which are symmetrically arranged and used for limiting the asphalt sample are arranged at the top of the asphalt sample. Two sides of the asphalt sample are provided with bidirectional moving mechanisms, the two bidirectional moving mechanisms are provided with two symmetrically arranged lifting mechanisms, the lifting mechanisms are provided with thin beams, the thin beams are provided with first scales, and the sample placing table is provided with second scales along the length direction of the asphalt sample. According to the asphalt stratified sampling device, asphalt samples can be rapidly limited through the two bidirectional moving mechanisms, the two lifting mechanisms, the two thin beams and the two limiting pieces, then the asphalt samples can be rapidly stratified and sampled through the scraper, the structure is simple, and convenience of stratified sampling is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of road engineering materials, in particular to an asphalt layer sampling device. Background Art

[0002] Asphalt, a viscoelastic organic liquid with excellent properties, is widely used in urban road construction. However, asphalt ages under external conditions such as high temperature, sunlight, ultraviolet light, and pressure. my country's JTG E20-2019 Test Procedure for Asphalt and Asphalt Mixtures for Highway Engineering uses various aging simulation methods. These include the asphalt thin film heating test and the asphalt rotating thin film heating test for short-term asphalt aging, the accelerated asphalt aging test in a pressure aging vessel for long-term asphalt aging, and the UV exposure test method using ASTM G154-2006 for non-metallic materials. These various aging methods utilize different samples and environments. Generally, the samples are melted and mixed before testing and analysis, making it impossible to assess the depth of environmental influences on asphalt aging. However, recent test results show that the depth of aging increases with time, while the degree of aging decreases with increasing depth. Traditional asphalt sampling devices are complex, increasing sampling difficulty and reducing efficiency. Utility Model Content

[0003] In order to make up for the above deficiencies, the present invention provides an asphalt layered sampling device to solve the problem of how to improve the convenience of asphalt sample layered sampling raised in the above background technology.

[0004] The technical solution of the utility model is:

[0005] An asphalt stratification sampling device includes a sample placement platform, an asphalt sample is placed on the sample placement platform, two symmetrically arranged limiters are provided on the top of the asphalt sample for limiting the asphalt sample, two sides of the asphalt sample are provided with a two-way moving mechanism, two symmetrically arranged lifting mechanisms are provided on the two two-way moving mechanisms, a thin beam is installed on the lifting mechanism, and a first scale is provided on the thin beam. The sample placement platform is provided with a second scale along the length direction of the asphalt sample.

[0006] Preferably, the limiting member comprises two thin plates connected as one body, and the two thin plates form an angle α.

[0007] Preferably, a circular arc angle is provided at the intersection of the two thin plates.

[0008] Preferably, the bidirectional moving mechanism includes a first screw and a T-shaped slider, the first screw is provided with two sections of threads with opposite spiral directions, one end of the first screw is provided with a first sprocket, the T-shaped slider is provided with two, the T-shaped slider is provided with a screw hole that cooperates with the first screw, the top of the sample placement table is provided with two symmetrically arranged sliding grooves that slide with the T-shaped slider, the first screw is rotatably set on the sample placement table, and the first screw is located in the sliding groove, one end of the first screw of the two bidirectional moving mechanisms is provided with a first disc, the first disc is provided with a first drive handle, and the two first sprockets are connected by chain transmission.

[0009] Preferably, the first drive handle is provided with anti-slip grooves.

[0010] Preferably, the lifting mechanism includes two gantries and two second screws, the top of the gantry is provided with a first rotating seat, the second screw is provided with a second sprocket, the top of one of the second screws is provided with a second disc, the second disc is provided with a second drive handle, the top of the T-shaped slider is provided with a horizontally arranged mounting plate, the top of the mounting plate is provided with a second rotating seat, both ends of the thin beam are provided with screw sleeves that cooperate with the second screw, the two gantries are respectively arranged on the top of the two mounting plates, the second screw is rotatably arranged on the first rotating seat and the second rotating seat, the screw sleeve is arranged on the second screw, and the two second sprockets are connected by chain transmission.

[0011] Preferably, the second driving handle is provided with anti-slip grooves.

[0012] Preferably, a rubber layer is provided at the bottom of the thin beam.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The utility model can quickly limit the asphalt sample through two bidirectional moving mechanisms, two lifting mechanisms, two thin beams and two limiting parts, and then a scraper can be used to quickly sample the asphalt sample in layers. The structure is simple and the convenience of layered sampling is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a top view of the asphalt layer sampling device of the present utility model;

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the asphalt layer sampling device of the present utility model;

[0017] Figure 3 This is a partial structural diagram of the asphalt layer sampling device of the present utility model;

[0018] Figure 4It is a structural diagram of the limiting member of the utility model.

[0019] In the picture:

[0020] 1. Sample placement table; 11. Slide groove; 2. Limiting piece; 21. Thin plate; 3. Bidirectional moving mechanism; 31. First screw; 32. T-shaped slider; 321. Screw hole; 322. Mounting plate; 323. Second rotating seat; 33. First sprocket; 34. First disc; 35. First drive handle; 4. Lifting mechanism; 41. Gantry; 411. First rotating seat; 42. Second screw; 43. Second sprocket; 44. Second disc; 45. Second drive handle; 5. Thin beam; 51. Screw sleeve; 6. Asphalt sample. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-4 The present invention describes the above technical solution in detail through the following embodiments:

[0023] An asphalt layer sampling device includes a sample placement table 1, an asphalt sample 6 is provided on the sample placement table 1, two symmetrically arranged limit members 2 are provided on the top of the asphalt sample 6 and are used to limit the asphalt sample 6, two sides of the asphalt sample 6 are provided with a two-way moving mechanism 3, the two two-way moving mechanisms 3 are provided with two symmetrically arranged lifting mechanisms 4, a thin beam 5 is installed on the lifting mechanism 4, the thin beam 5 is provided with a first scale, and the sample placement table 1 is provided with a second scale along the length direction of the asphalt sample 6.

[0024] The utility model can adjust the positions of the two thin beams 5 through the bidirectional moving mechanism 3, and can move the two thin beams 5 downward through the lifting mechanism 4. The two thin beams 5 can press the limiting parts 2, and the limiting parts 2 can simply limit the asphalt sample 6, so as to facilitate the subsequent scraper to sample the asphalt sample 6. The sampling position of the asphalt sample 6 can be understood through the first scale and the second scale, which is convenient for recording.

[0025] The limiting member 2 includes two thin plates 21 connected as one body, and the two thin plates 21 form an angle α. The two thin plates 21 form a triangle shape, which has high stability and light weight. The size of the limiting member 2 is not limited and can be adaptively selected according to the size of the asphalt.

[0026] The intersection of the two thin plates 21 is provided with a rounded corner to facilitate the movement of the scraper thereon.

[0027] The bidirectional moving mechanism 3 includes a first screw 31 and a T-shaped slider 32. The first screw 31 is provided with two sections of threads with opposite spiral directions. A first sprocket 33 is provided at one end of the first screw 31. There are two T-shaped sliders 32. The T-shaped slider 32 is provided with a screw hole 321 that cooperates with the first screw 31. The top of the sample placement table 1 is provided with two symmetrically arranged slide grooves 11 that slide with the T-shaped slider 32. The first screw 31 is rotatably set on the sample placement table 1, and the first screw 31 is located in the slide groove 11. One end of the first screw 31 in the two bidirectional moving mechanisms 3 is provided with a first disc 34, and the first disc 34 is provided with a first drive handle 35. The two first sprockets 33 are connected by chain transmission.

[0028] The first disc 34 is driven to rotate by the first driving handle 35, and the first disc 34 drives the corresponding first screw 31 to rotate, and the first screw 31 drives the two T-shaped sliders 32 to move toward each other. At the same time, the first screw 31 drives another first sprocket 33 to rotate through the first sprocket 33 and the chain, and the first sprocket 33 drives the corresponding first screw 31 to rotate, and the first screw 31 also drives the two T-blocks to move toward each other synchronously, and the two lifting mechanisms 4 also move toward each other synchronously, and the two thin beams 5 move toward each other, so that the two thin beams 5 can be quickly adjusted laterally.

[0029] The first driving handle 35 is provided with anti-skid grooves to increase friction and prevent slipping.

[0030] The lifting mechanism 4 includes two gantries 41 and two second screws 42. The top of the gantry 41 is provided with a first rotating seat 411, and the second screw 42 is provided with a second sprocket 43. The top of one of the second screws 42 is provided with a second disc 44, and the second disc 44 is provided with a second drive handle 45. The top of the T-shaped slider 32 is provided with a horizontally arranged mounting plate 322, and the top of the mounting plate 322 is provided with a second rotating seat 323. Both ends of the thin beam 5 are provided with a screw sleeve 51 that cooperates with the second screw 42. The two gantries 41 are respectively arranged on the top of the two mounting plates 322, and the second screw 42 is rotatably arranged on the first rotating seat 411 and the second rotating seat 323. The screw sleeve 51 is arranged on the second screw 42, and the two second sprockets 43 are connected by chain transmission.

[0031] The second disc 44 is driven to rotate by the second driving handle 45, and the second disc 44 drives the corresponding second screw 42 to rotate. The second screw 42 drives another second sprocket 43 to rotate through the second sprocket 43 and the chain, and the second sprocket 43 drives another second screw 42 to rotate. The cooperation between the second screw 42 and the screw sleeve 51 allows the thin beam 5 to be raised and lowered in a horizontal state, and the thin beam 5 can be pressed and fixed on the top of the limit member 2.

[0032] The second driving handle 45 is provided with anti-skid grooves to increase friction and prevent slipping.

[0033] A rubber layer is provided at the bottom of the thin beam 5 to increase the buffering force and prevent the thin beam 5 from being deformed.

[0034] Working principle: Place the asphalt sample 6 on the sample placement table 1, then place the two limiting members 2 on the top of the asphalt sample 6, and then drive the two first screws 31 to rotate through the first driving handle 35. The two lifting mechanisms 4 can then move toward each other and change their positions. The two thin beams 5 also change their positions along with the two lifting mechanisms 4. Then, drive the two second screws 42 to rotate through the second driving handle 45, so that the two thin beams 5 can move downward, and the two thin beams 5 can be quickly pressed on the top of the two limiting members 2. In this way, the asphalt sample 6 can be quickly limited, and then layered sampling can be performed through a scraper.

Claims

1. An asphalt layer sampling device, characterized by: The invention comprises a sample placement platform (1), wherein an asphalt sample (6) is provided on the sample placement platform (1), two symmetrically arranged limiting members (2) for limiting the asphalt sample (6) are provided on the top of the asphalt sample (6), two bidirectional moving mechanisms (3) are provided on both sides of the asphalt sample (6), two symmetrically arranged lifting mechanisms (4) are provided on the two bidirectional moving mechanisms (3), a thin beam (5) is installed on the lifting mechanism (4), and a first scale is provided on the thin beam (5), and the sample placement platform (1) is provided with a second scale along the length direction of the asphalt sample (6).

2. The asphalt layer sampling device according to claim 1, characterized in that: The limiting member (2) comprises two thin plates (21) connected as one body, and the two thin plates (21) form an angle α.

3. The asphalt layer sampling device according to claim 2, characterized in that: The intersection of the two thin plates (21) is provided with an arc angle.

4. The asphalt layer sampling device according to claim 1, characterized in that: The bidirectional moving mechanism (3) includes a first screw (31) and a T-shaped slider (32), the first screw (31) is provided with two sections of screw threads with opposite spiral directions, one end of the first screw (31) is provided with a first sprocket (33), the T-shaped slider (32) is provided with two, the T-shaped slider (32) is provided with a screw hole (321) that cooperates with the first screw (31), the top of the sample placement table (1) is provided with two symmetrically arranged slide grooves (11) that slide with the T-shaped slider (32), the first screw (31) is rotatably set on the sample placement table (1), and the first screw (31) is located in the slide groove (11), one end of one of the first screws (31) in the two bidirectional moving mechanisms (3) is provided with a first disc (34), the first disc (34) is provided with a first drive handle (35), and the two first sprockets (33) are connected by chain transmission.

5. The asphalt layer sampling device according to claim 4, characterized in that: The first driving handle (35) is provided with anti-slip grooves.

6. The asphalt layer sampling device according to claim 5, characterized in that: The lifting mechanism (4) comprises two gantry frames (41) and two second screw rods (42), the top of the gantry frames (41) is provided with a first rotating seat (411), the second screw rods (42) are provided with a second sprocket (43), the top of one of the second screw rods (42) is provided with a second disc (44), the second disc (44) is provided with a second driving handle (45), the top of the T-shaped slider (32) is provided with a horizontally arranged mounting plate (322), the mounting plate (322) is provided with a second driving handle (45), and the second driving handle (45) is provided with a second driving handle (45) A second rotating seat (323) is provided on the top of the thin beam (5), screw sleeves (51) that cooperate with the second screw rod (42) are provided at both ends of the thin beam (5), the two gantry frames (41) are respectively arranged on the top of the two mounting plates (322), the second screw rod (42) is arranged to rotate on the first rotating seat (411) and the second rotating seat (323), the screw sleeve (51) is arranged on the second screw rod (42), and the two second sprockets (43) are connected by chain transmission.

7. The asphalt layer sampling device according to claim 6, characterized in that: The second driving handle (45) is provided with anti-slip grooves.

8. The asphalt layer sampling device according to claim 1, characterized in that: The bottom of the thin beam (5) is provided with a rubber layer.

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