Asphalt dynamic viscosity tester

Abstract

The utility model discloses an asphalt dynamic viscosity tester which comprises a tester body and a bedplate arranged at the top of the tester body, a heating bin is arranged on the inner side of the tester body, toughened glass is fixedly arranged on the front side of an inner cavity of the heating bin, three feeding holes communicated with the heating bin are formed in the bedplate at equal intervals, and the feeding holes are communicated with the heating bin. When the feeding device is used, the first hand-cranking wheel can be rotated to drive the first threaded rod to rotate, so that the end cover at the top can be driven to synchronously ascend and descend through ascending and descending of the first threaded rod in the inner cavity of the threaded hole; the capillary viscometers with different sizes can be clamped and fixed by adjusting the distance between the two longitudinally adjacent end covers, and meanwhile, the capillary viscometers are prevented from being damaged by overexertion through the arrangement of the upper rubber pad and the lower rubber pad.

Description

Technical Field

[0001] The invention relates to the technical field of asphalt performance testing, in particular to an asphalt dynamic viscosity tester. Background Art

[0002] Asphalt is a dark brown complex mixture composed of hydrocarbons of different molecular weights and their non-metallic derivatives. It is a kind of high-viscosity organic liquid. It mostly exists in liquid or semi-solid petroleum form. The surface is black and it is soluble in carbon disulfide and carbon tetrachloride. It is a waterproof, moisture-proof and anti-corrosion organic gelling material. It is mainly used in coatings, plastics, rubber and other industries, as well as road paving. The dynamic viscosity of asphalt refers to the dynamic viscosity of asphalt measured by a capillary viscometer under specified temperature and vacuum conditions. For asphalt with high viscosity, it is not easy for displacement to occur between molecules, and the asphalt is not easy to deform.

[0003] When the dynamic viscosity of asphalt is tested by a dynamic viscosity tester, the asphalt is generally placed in a capillary viscometer, and then the capillary viscometer is clamped and fixed by a clamping mechanism. Since the capillary viscometers vary in size and model, the existing clamping mechanism is difficult to apply. In addition, when the existing dynamic viscosity tester performs batch testing on asphalt, a single test can only obtain test results at the same heating temperature. When it is necessary to obtain test results at different heating temperatures, the staff is required to perform repeated operations, which not only increases the work intensity, but also reduces the test efficiency. Summary of the invention

[0004] One of the purposes of the utility model is achieved by the following technical solution:

[0005] The asphalt dynamic viscosity tester comprises a body and a table mounted on the top of the body, and a heating chamber is arranged on the inner side of the body, and tempered glass is fixedly mounted on the front side of the inner cavity of the heating chamber, three feed ports connected with the heating chamber are equidistantly arranged on the table, and the tops of the three feed ports are fitted with a same cover plate, and a lifting mechanism is arranged on the left side of the cover plate, the inner cavities of the three feed ports are slidably connected with vertical plates, and two end covers are fitted on the right side of the vertical plates, and the left sides of the three end covers located on the top are fixedly connected with rectangular sliders, and the right sides of the three vertical plates are provided with rectangular slide grooves, and the three The rectangular sliders are slidably connected to the inner cavities of adjacent rectangular slide grooves, the tops of the three end covers at the top are fixedly connected to the first bearings, and the inner cavity of the first bearings is rotatably connected to the first threaded rods, three threaded holes are equidistantly provided on the cover plate, and the tops of the three first threaded rods respectively penetrate the inner cavities of adjacent threaded holes and are fixedly connected to the first hand-cranked wheels, the three end covers at the bottom are fixedly connected to the adjacent vertical plates, the inner cavities of the two longitudinally adjacent end covers are plugged with the same capillary viscometer, and three transversely arranged heating tubes are equidistantly fixedly installed on the bottom of the inner cavity of the heating chamber.

[0006] Furthermore, two fixed partitions are fixedly connected to the bottom of the inner cavity of the heating chamber, and the front and rear sides of the two fixed partitions are respectively fixedly connected to the front and rear sides of the inner cavity of the heating chamber, and the two fixed partitions are located on the left and right sides of the middle heating tube.

[0007] Furthermore, a lifting partition is fitted on adjacent sides of the two fixed partitions, and the top of the lifting partition is fitted with the top of the inner cavity of the heating chamber, a cavity is opened on the two fixed partitions, and a first threaded sleeve is provided near the top of the inner cavity of the cavity, and connecting rods are fixedly connected to adjacent sides of the two first threaded sleeves, and limited slots are opened on adjacent sides of the two fixed partitions, and adjacent ends of the two connecting rods are respectively fixedly connected to adjacent lifting partitions, and the inner cavities of the two first threaded sleeves are screwed with second threaded rods, and the top of the second threaded rod is rotatably connected to the top of the inner cavity of the cavity, and the two The bottom ends of the second threaded rods are fixedly connected with driven bevel gears, and the bottoms of the driven bevel gears are meshed with transmission bevel gears. The two fixed partitions are fixedly connected with second bearings connected to the cavity near the bottom on the sides away from each other. The inner cavities of the two limiting grooves are plugged with the same transmission rod. The right ends of the transmission rods pass through the adjacent transmission bevel gears and are plugged into the adjacent second bearing inner cavities. A through hole connected to the heating bin is provided on the left side of the device body, and the left end of the transmission rod passes through the adjacent transmission bevel gears, the second bearing and the inner cavities of the through hole, extends to the left side of the device body, and is fixedly connected with the second hand-cranked wheel.

[0008] Furthermore, the lifting mechanism includes a transverse plate, and the transverse plate is fixedly connected to the left side of the table plate, a third bearing is fixedly connected to the transverse plate, and a motor housing is fixedly connected to the bottom of the transverse plate, a servo motor is fixedly installed at the bottom of the inner cavity of the motor housing, a transverse rod is fixedly connected to the left side of the cover plate, and a second threaded sleeve is fixedly connected to the left end of the transverse rod, a third threaded rod is threadedly connected to the inner cavity of the second threaded sleeve, and the bottom end of the third threaded rod passes through the inner cavity of the third bearing and is fixedly connected to the power output end of the servo motor, a side plate is fixedly connected to the top rear side of the transverse plate, and a connecting plate is fixedly connected to the front top of the side plate, and the top end of the third threaded rod is rotatably connected to the bottom of the connecting plate.

[0009] Furthermore, a sliding rod is fixedly connected to the rear side of the second threaded sleeve, a limiting sliding groove matching the sliding rod is opened on the front side of the side plate, and the rear end of the sliding rod is inserted into the inner cavity of the limiting sliding groove.

[0010] Furthermore, a rubber pad is fixedly connected to the inner wall of the end cover, and the rubber pad is fitted to the capillary viscometer.

[0011] Furthermore, the fixed partition and the lifting partition are both made of heat-insulating materials.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The present invention can drive the first threaded rod to rotate by turning the first hand-cranked wheel, through the arrangement of the vertical plate, the end cover, the rectangular slider, the rectangular slide groove, the rubber pad, the first threaded rod and the first hand-cranked wheel, so that the end cover on the top can be synchronously lifted and lowered by the lifting and lowering of the first threaded rod in the inner cavity of the threaded hole, and the capillary viscometers of different sizes can be clamped and fixed by adjusting the distance between the two longitudinally adjacent end covers. At the same time, the capillary viscometers can be prevented from being damaged by excessive force by the arrangement of the upper and lower rubber pads;

[0014] 2. The present invention adopts the linkage setting of the fixed partition, the lifting partition, the first threaded sleeve, the second threaded rod, the driven bevel gear, the transmission bevel gear, the transmission rod and the second hand-cranked wheel. When the same batch of asphalt is tested at the same temperature, the second hand-cranked wheel can be rotated to drive the lifting partition to move downward, so that the heating chamber forms a complete closed space. Then, when the staff puts three capillary viscometers filled with asphalt into the heating chamber, the tests can be carried out at the same temperature. When it is necessary to test at different temperatures, since the fixed partition and the lifting partition are both made of heat-insulating materials and the three heating tubes are equidistantly arranged, the heating chamber can be divided into three heating spaces. Then, by adjusting the heating temperature of the three heating tubes, the viscosity of the same batch of asphalt at different heating temperatures in the capillary viscometers can be tested, which is beneficial to reduce the clamping workload of the staff and improve the test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional diagram of this embodiment;

[0016] Figure 2 This is a front view of the structure of the present embodiment;

[0017] Figure 3 This is a schematic diagram of the three-dimensional structure of the component end cover of this embodiment;

[0018] Figure 4 This is a schematic diagram of the left side structure of the component side panel of this embodiment;

[0019] Figure 5 This is a schematic diagram of the front view structure of the component fixing partition of this embodiment.

[0020] Numbers in the figure: 1. body; 2. table; 3. heating chamber; 4. feed port; 5. fixed partition; 6. heating tube; 7. cover plate; 8. vertical plate; 9. end cover; 10. capillary viscometer; 11. first threaded rod; 12. first hand crank; 13. cross bar; 14. cross plate; 15. second threaded sleeve; 16. third threaded rod; 17. side plate; 18. servo motor; 19. lifting partition; 20. first threaded sleeve; 21. second threaded rod; 22. driving bevel gear; 23. driven bevel gear; 24. driving rod; 25. second hand crank; 26. rubber pad; 27. tempered glass. DETAILED DESCRIPTION

[0021] See also Figure 1-5 , the utility model provides the following technical solutions:

[0022] The asphalt dynamic viscosity tester comprises a body 1 and a table 2 installed on the top of the body 1, and a heating chamber 3 is arranged on the inner side of the body 1, and a tempered glass 27 is fixedly installed on the front side of the inner cavity of the heating chamber 3, three feed ports 4 connected with the heating chamber 3 are equidistantly provided on the table 2, and the tops of the three feed ports 4 are fitted with a same cover plate 7, and a lifting mechanism is provided on the left side of the cover plate 7, the inner cavities of the three feed ports 4 are all slidably connected with vertical plates 8, and the right side of the vertical plates 8 is fitted with two end covers 9, the left sides of the three end covers 9 located at the top are all fixedly connected with rectangular sliders, the right sides of the three vertical plates 8 are all provided with rectangular slide grooves, and the three rectangular sliders are respectively slidably connected to the inner cavities of adjacent rectangular slide grooves, and the three end covers 9 located at the top are fixedly connected with rectangular sliders, and the right sides of the three vertical plates 8 are provided with rectangular slide grooves, and the three rectangular sliders are respectively slidably connected to the inner cavities of adjacent rectangular slide grooves, and the three end covers 9 located at the top are fixedly connected with rectangular sliders, and the three end covers 9 located at the top are fixedly connected with rectangular sliders, and the right sides of the three vertical plates 8 are provided with rectangular slide grooves, and the three rectangular slide grooves are respectively slidably connected to the inner cavities of adjacent rectangular slide grooves, and the three end covers 9 located at the top are fixedly connected with rectangular slider ... The top of the cover 9 is fixedly connected to the first bearing, and the inner cavity of the first bearing is rotatably connected to the first threaded rod 11, three threaded holes are equidistantly provided on the cover plate 7, and the top ends of the three first threaded rods 11 respectively penetrate the inner cavities of adjacent threaded holes and are fixedly connected to the first hand-cranked wheel 12, the three end covers 9 at the bottom are respectively fixedly connected to the adjacent vertical plates 8, the inner cavities of two longitudinally adjacent end covers 9 are plugged with the same capillary viscometer 10, the inner wall of the end cover 9 is fixedly connected to the rubber pad 26, and the rubber pad 26 is fitted with the capillary viscometer 10 to avoid damage to the capillary viscometer 10 due to excessive extrusion pressure, and three transversely arranged heating tubes 6 are equidistantly fixedly installed on the bottom of the inner cavity of the heating chamber 3.

[0023] The bottom of the inner cavity of the heating bin 3 is fixedly connected to two fixed partitions 5 arranged on the left and right, and the front and rear sides of the two fixed partitions 5 are respectively fixedly connected to the front and rear sides of the inner cavity of the heating bin 3. The two fixed partitions 5 are located on the left and right sides of the middle heating tube 6. The fixed partitions 5 and the lifting partitions 19 are both made of heat-insulating materials. The adjacent sides of the two fixed partitions 5 are fitted with lifting partitions 19, and the top of the lifting partitions 19 is fitted with the top of the inner cavity of the heating bin 3. A cavity is opened on the two fixed partitions 5, and a first threaded sleeve 20 is provided near the top of the inner cavity of the cavity. The adjacent sides of the two first threaded sleeves 20 are fixedly connected with connecting rods. The adjacent sides of the two fixed partitions 5 are provided with limited slots, and the adjacent ends of the two connecting rods are respectively fixedly connected to the adjacent lifting partitions 19. The two first threaded sleeves 2 0's inner cavity is threaded with a second threaded rod 21, and the top of the second threaded rod 21 is rotatably connected to the top of the inner cavity of the cavity, the bottom ends of the two second threaded rods 21 are fixedly connected with a driven bevel gear 23, and the bottom of the driven bevel gear 23 is meshed with a transmission bevel gear 22, and the two fixed partitions 5 are fixedly connected to a second bearing connected to the cavity near the bottom on the side away from each other, and the two limited slotted inner cavities are plugged with the same transmission rod 24, the right end of the transmission rod 24 passes through the adjacent transmission bevel gear 22 and is plugged into the adjacent second bearing inner cavity, a through hole connected to the heating chamber 3 is opened on the left side of the device body 1, and the left end of the transmission rod 24 passes through the adjacent transmission bevel gear 22, the second bearing and the inner cavity of the through hole, extends to the left side of the device body 1, and is fixedly connected with a second hand-cranked wheel 25.

[0024] The lifting mechanism includes a transverse plate 14, and the transverse plate 14 is fixedly connected to the left side of the table plate 2, a third bearing is fixedly connected to the transverse plate 14, and the bottom of the transverse plate 14 is fixedly connected to the motor housing, and a servo motor 18 is fixedly installed at the bottom of the inner cavity of the motor housing, a transverse rod 13 is fixedly connected to the left side of the cover plate 7, and the left end of the transverse rod 13 is fixedly connected to the second threaded sleeve 15, the inner cavity of the second threaded sleeve 15 is screwed with a third threaded rod 16, and the bottom end of the third threaded rod 16 passes through the inner cavity of the third bearing and is fixedly connected to the power output end of the servo motor 18, a side plate 17 is fixedly connected to the top rear side of the transverse plate 14, and a connecting plate is fixedly connected to the front top of the side plate 17, the top end of the third threaded rod 16 is rotatably connected to the bottom of the connecting plate, and a sliding rod is fixedly connected to the rear side of the second threaded sleeve 15, and a limiting slide groove matching the sliding rod is provided on the front side of the side plate 17, and the rear end of the sliding rod is inserted into the inner cavity of the limiting slide groove.

[0025] Working principle: When the utility model is in use, the bottom end of the capillary viscometer 10 filled with asphalt is inserted into the end cover 9 below, and then the first hand-cranked wheel 12 is turned to drive the first threaded rod 11 to rotate. The first threaded rod 11 rotates to push the upper end cover 9 to move vertically downward, so that the top of the capillary viscometer 10 can be covered, and then the capillary viscometer 10 can be sleeved and fixed on the vertical plate 8, and the upper and lower rubber pads 26 are set to avoid excessive force when turning the first hand-cranked wheel 12 to cause damage to the capillary viscometer 10. When the capillary viscometer 10 is clamped, the servo motor 18 is started to drive the third threaded rod 16 to rotate. The rotation of the third threaded rod 16 drives the second threaded sleeve 15 to move downward, and drives the cover plate 7 to move vertically downward through the cross bar 13, so that the capillary viscometer 10 and the vertical plate 8 pass through the feed port 4 and extend into the inner cavity of the heating bin 3, and the capillary viscometer 10 is heated by the heating tube 6, and the test results are recorded. When it is necessary to test the viscosity of asphalt at different heating temperatures of the same batch, the second hand-cranked wheel 25 can be turned to drive the transmission rod 24 to rotate, and the rotation of the transmission rod 24 drives the two transmission bevel gears 22 to rotate, and the rotation of the transmission bevel gear 22 drives the driven bevel gear 23 to rotate, and drives the second threaded rod 21 to rotate, and the rotation of the second threaded rod 21 drives the first threaded sleeve 20 to move upward, and drives the lifting partition 19 to move upward and fit with the top of the inner cavity of the heating bin 3. By adjusting the heating temperature of the three heating tubes 6, and because the fixed partition 5 and the lifting partition 19 are both made of heat-insulating materials, the viscosity of asphalt at different heating temperatures can be tested.

Claims

1. An asphalt dynamic viscosity tester, comprising a body (1) and a table (2) mounted on the top of the body (1), wherein a heating chamber (3) is arranged inside the body (1), characterized in that: A tempered glass (27) is fixedly installed on the front side of the inner cavity of the heating chamber (3); three feed ports (4) connected to the heating chamber (3) are equidistantly provided on the table (2); the tops of the three feed ports (4) are fitted with a same cover plate (7); a lifting mechanism is provided on the left side of the cover plate (7); the inner cavities of the three feed ports (4) are slidably connected with a vertical plate (8); two end covers (9) are fitted on the right side of the vertical plate (8); the left sides of the three end covers (9) located at the top are fixedly connected with a rectangular slider; the right sides of the three vertical plates (8) are provided with a rectangular slide groove; and the three rectangular sliders are slidably connected to the adjacent rectangular slide grooves. The inner cavity of the slide groove, the tops of the three end covers (9) located at the top are fixedly connected to the first bearing, and the inner cavity of the first bearing is rotatably connected to the first threaded rod (11), the cover plate (7) is provided with three threaded holes at equal intervals, and the tops of the three first threaded rods (11) respectively penetrate the inner cavities of adjacent threaded holes and are fixedly connected to the first hand-cranked wheel (12), the three end covers (9) located at the bottom are fixedly connected to the adjacent vertical plates (8), and the inner cavities of the two longitudinally adjacent end covers (9) are plugged with the same capillary viscometer (10), and the bottom of the inner cavity of the heating chamber (3) is fixedly installed with three horizontally arranged heating tubes (6) at equal intervals.

2. The asphalt dynamic viscosity tester according to claim 1, characterized in that: The bottom of the inner cavity of the heating chamber (3) is fixedly connected to two fixed partitions (5) arranged on the left and right. The front and rear sides of the two fixed partitions (5) are respectively fixedly connected to the front and rear sides of the inner cavity of the heating chamber (3). The two fixed partitions (5) are located on the left and right sides of the middle heating tube (6).

3. The asphalt dynamic viscosity tester according to claim 2, characterized in that: The adjacent sides of the two fixed partitions (5) are fitted with lifting partitions (19), and the top of the lifting partitions (19) is fitted with the top of the inner cavity of the heating chamber (3). The two fixed partitions (5) are provided with a cavity, and the inner cavity of the cavity is provided with a first threaded sleeve (20) near the top. The adjacent sides of the two first threaded sleeves (20) are fixedly connected with connecting rods. The adjacent sides of the two fixed partitions (5) are provided with limited slots, and the adjacent ends of the two connecting rods are respectively fixedly connected to the adjacent lifting partitions (19). The inner cavities of the two first threaded sleeves (20) are screwed with second threaded rods (21), and the top of the second threaded rod (21) is rotatably connected to the inner cavity top of the cavity. The two second threaded rods The bottom ends of the two fixed partitions (5) are fixedly connected to driven bevel gears (23), and the bottom of the driven bevel gears (23) is meshed with a transmission bevel gear (22). The two fixed partitions (5) are fixedly connected to a second bearing connected to the cavity near the bottom on the side away from each other. The inner cavities of the two limit slots are plugged with a same transmission rod (24). The right end of the transmission rod (24) passes through the adjacent transmission bevel gears (22) and is plugged into the adjacent second bearing inner cavity. The left side of the device body (1) is provided with a through hole connected to the heating chamber (3), and the left end of the transmission rod (24) passes through the adjacent transmission bevel gears (22), the second bearing and the inner cavity of the through hole, extends to the left side of the device body (1), and is fixedly connected to a second hand-cranked wheel (25).

4. The asphalt dynamic viscosity tester according to claim 1, characterized in that: The lifting mechanism comprises a transverse plate (14), and the transverse plate (14) is fixedly connected to the left side of the platform (2), a third bearing is fixedly connected to the transverse plate (14), and a motor housing is fixedly connected to the bottom of the transverse plate (14), and a servo motor (18) is fixedly installed at the bottom of the inner cavity of the motor housing, a transverse rod (13) is fixedly connected to the left side of the cover plate (7), and a second threaded sleeve (15) is fixedly connected to the left end of the transverse rod (13), a third threaded rod (16) is threadedly connected to the inner cavity of the second threaded sleeve (15), and the bottom end of the third threaded rod (16) passes through the inner cavity of the third bearing and is fixedly connected to the power output end of the servo motor (18), a side plate (17) is fixedly connected to the rear side of the top of the transverse plate (14), and a connecting plate is fixedly connected to the top of the front side of the side plate (17), and the top end of the third threaded rod (16) is rotatably connected to the bottom of the connecting plate.

5. The asphalt dynamic viscosity tester according to claim 4, characterized in that: The rear side of the second threaded sleeve (15) is fixedly connected to a sliding rod, the front side of the side plate (17) is provided with a limiting sliding groove matching the sliding rod, and the rear end of the sliding rod is inserted into the inner cavity of the limiting sliding groove.

6. The asphalt dynamic viscosity tester according to claim 1, characterized in that: A rubber pad (26) is fixedly connected to the inner wall of the end cover (9), and the rubber pad (26) is arranged in close contact with the capillary viscometer (10).

7. The asphalt dynamic viscosity tester according to claim 2, characterized in that: The fixed partition (5) and the lifting partition (19) are both made of heat-insulating materials.

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