Asphalt viscosity testing mechanism for roads and bridges

Abstract

The utility model relates to the technical field of roads and bridges, and discloses an asphalt viscosity testing mechanism for roads and bridges, which comprises a base, the top of the base is fixedly connected with a fixing frame, the top of the base is fixedly connected with a support, the inside of the support is fixedly connected with an air cylinder, and the output end of the air cylinder is fixedly connected with a testing needle. A heating barrel is fixedly connected to the interior of the base, a first motor is fixedly connected to the interior of the fixing frame, two first gears are rotationally connected to the bottom of the connecting frame, and a gear ring is fixedly connected to the interior of the heating barrel. According to the asphalt viscosity testing mechanism, the motor I drives the driving chain wheel to rotate, and the driving chain wheel achieves the effect of uniformly heating asphalt through the matching of the chain, the driven chain wheel, the connecting frame, the gear I and the gear ring, so that the phenomenon of non-uniform asphalt heating of the existing asphalt viscosity testing mechanism for roads and bridges is solved; therefore, the problem that the needle penetration test result is inaccurate is solved, and the test accuracy is improved.

Description

Technical Field

[0001] This utility model relates to the field of road and bridge technology, and in particular to an asphalt viscosity testing mechanism for roads and bridges. Background Technology

[0002] As a key material in road construction, asphalt's viscosity directly affects the road's load-bearing capacity, deformation resistance, and durability. With increasing traffic volume and the rise of heavy-duty vehicles, accurate testing of asphalt viscosity has become particularly important to ensure the quality of road engineering and driving safety. Technological advancements have driven the development of asphalt viscosity testing methods, from manual testing to automated high-precision equipment. The background of testing institutions reflects the profound impact of technological progress on road engineering.

[0003] Existing testing institutions for the viscosity of asphalt used in roads and bridges typically employ the penetration test. The principle of the penetration test is to measure the depth to which a standard needle penetrates vertically into an asphalt sample under certain load, time, and temperature conditions to reflect the consistency or viscosity of the asphalt. Specifically, the penetration value is closely related to the hardness and viscosity of the asphalt. The smaller the penetration value, the harder and more viscous the asphalt is, and the stronger its ability to resist external shear forces and deformation. Conversely, the larger the penetration value, the softer and less viscous the asphalt is, and the weaker its ability to resist deformation.

[0004] However, existing asphalt viscosity testing equipment for roads and bridges often suffers from uneven heating of asphalt during the heating process. This uneven heating leads to inconsistent temperatures in different parts of the asphalt, resulting in inaccurate penetration test results. Therefore, a new asphalt viscosity testing equipment for roads and bridges is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an asphalt viscosity testing mechanism for roads and bridges, aiming to improve the problem that existing asphalt viscosity testing mechanisms for roads and bridges often suffer from uneven asphalt heating, resulting in inaccurate penetration test results.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: an asphalt viscosity testing mechanism for roads and bridges, comprising a base, a fixed frame fixedly connected to the top of the base, a support fixedly connected to the top of the base, a cylinder fixedly connected inside the support, a test needle fixedly connected to the output end of the cylinder, a heating barrel fixedly connected inside the base, a motor fixedly connected inside the fixed frame, a drive sprocket fixedly connected to the output end of the motor, a driven sprocket rotatably connected inside the fixed frame, a chain provided between the driven sprocket and the drive sprocket, a connecting frame fixedly connected inside the driven sprocket, two gears rotatably connected to the bottom of the connecting frame, a gear ring fixedly connected inside the heating barrel, the gear ring meshing with the gears, a stirring rod fixedly connected to the bottom of the gears, and a guide component provided inside the base for guiding the lifting component to move along a preset route;

[0007] As a further description of the above technical solution: the guide assembly includes a sliding column and a slider, the outer wall of the sliding column is slidably connected to the inside of the slider, and the bottom of the sliding column is fixedly connected to the inside of the base;

[0008] As a further description of the above technical solution: a transmission rod is rotatably connected inside the base, and a lifting plate is rotatably connected to the bottom of another transmission rod; a connecting rod is rotatably connected to one side of the outer wall of both transmission rods.

[0009] As a further description of the above technical solution: a connecting block is rotatably connected to one side of the outer wall of the connecting rod, and a transmission rod II is rotatably connected inside the connecting block;

[0010] As a further description of the above technical solution: a fixing block is fixedly connected to the top of the lifting plate;

[0011] As a further description of the above technical solution: another connecting block is rotatably connected to one side of the outer wall of the transmission rod, and a transmission block is rotatably connected to one side of the outer wall of the other connecting block;

[0012] As a further description of the above technical solution: a second motor is fixedly connected inside the fixed block, a second gear is fixedly connected to the output end of the second motor, a toothed plate is slidably connected inside the fixed block, and the top of the toothed plate is fixedly connected to the bottom of the transmission block;

[0013] As a further description of the above technical solution: the bottom of the lifting plate is rotatably connected to a traveling wheel.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, a motor drives the active sprocket to rotate, and the active sprocket drives the connecting frame to rotate through a chain and a driven sprocket. Then, through the cooperation of a gear, a gear ring, and a stirring rod, the asphalt can be stirred during heating, achieving the effect of uniform heating of the asphalt. This solves the problem that existing asphalt viscosity testing mechanisms for roads and bridges often have uneven asphalt heating, resulting in inaccurate penetration test results, and improves the accuracy of the test.

[0016] 2. In this utility model, the second motor drives the second gear to rotate, and the second gear drives the transmission block to move through the toothed plate. Subsequently, the connecting block is subjected to force to drive the second transmission rod, the connecting rod and the first transmission rod to move, so that the lifting plate drives the walking wheel to descend until it lifts the mechanism, achieving the effect of easily moving the mechanism. This solves the problem that when road and bridge construction is usually distributed in different locations and the testing mechanism cannot be easily moved, it is difficult to conduct asphalt viscosity testing on the construction site in a timely manner, thus improving flexibility. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of an asphalt viscosity testing mechanism for roads and bridges proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the fixing frame structure of an asphalt viscosity testing mechanism for roads and bridges proposed in this utility model;

[0019] Figure 3 This is a schematic diagram of the slider structure of an asphalt viscosity testing mechanism for roads and bridges proposed in this utility model;

[0020] Figure 4 This is a schematic diagram of the transmission block structure of an asphalt viscosity testing mechanism for roads and bridges proposed in this utility model.

[0021] Legend:

[0022] 1. Base; 2. Fixing frame; 3. Test probe; 4. Motor 1; 5. Drive sprocket; 6. Chain; 7. Driven sprocket; 8. Connecting frame; 9. Gear 1; 10. Gear ring; 11. Heating tank; 12. Stirring rod; 13. Support; 14. Cylinder; 15. Sliding column; 16. Sliding block; 17. Lifting plate; 18. Transmission rod 1; 19. Connecting rod; 20. Connecting block; 21. Transmission rod 2; 22. Transmission block; 23. Fixing block; 24. Motor 2; 25. Gear 2; 26. Gear plate; 27. Traveling wheel. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Reference Figure 1 - Figure 3 An embodiment of this utility model provides an asphalt viscosity testing mechanism for roads and bridges, comprising a base 1, a fixed frame 2 fixedly connected to the top of the base 1, a support 13 fixedly connected to the top of the base 1, a cylinder 14 fixedly connected inside the support 13, a test needle 3 fixedly connected to the output end of the cylinder 14, a heating barrel 11 fixedly connected inside the base 1, a motor 4 fixedly connected inside the fixed frame 2, a drive sprocket 5 fixedly connected to the output end of the motor 4, a driven sprocket 7 rotatably connected inside the fixed frame 2, a chain 6 provided between the driven sprocket 7 and the drive sprocket 5, a connecting frame 8 fixedly connected inside the driven sprocket 7, two gears 9 rotatably connected to the bottom of the connecting frame 8, a gear ring 10 fixedly connected inside the heating barrel 11, the gear ring 10 meshing with the gears 9, a stirring rod 12 fixedly connected to the bottom of the gears 9, and a guide component provided inside the base 1 for guiding the lifting component to move along a preset route.

[0025] Specifically, when using the asphalt viscosity testing apparatus for road and bridge applications, the heating tank 11 is first activated to heat the asphalt sample. The temperature control system inside the heating tank 11 ensures that the asphalt is heated uniformly within the specified temperature range, which is crucial for the accuracy of the test results. Simultaneously, motor 4 is activated, causing the drive sprocket 5 to rotate. The drive sprocket 5 is connected to the driven sprocket 7 via chain 6. The movement of chain 6 causes the driven sprocket 7 to also rotate. As the driven sprocket 7 rotates, the connecting frame 8 is subjected to force and begins to rotate. The rotation of the connecting frame 8 drives the gear 9, which is tightly engaged with the gear ring 10. Through this precise gear transmission mechanism, power is transmitted to the stirring rod 12. The stirring rod 12 is driven by the gear 9 and the gear ring 10. With the help of the cylinder, the cylinder begins to rotate and stir the asphalt. The stirring process ensures that the asphalt maintains a uniform temperature distribution throughout the heating process, avoiding local overheating or uneven temperature. This is crucial for subsequent viscosity testing. After the asphalt is heated and stirred evenly, the temperature inside the heating tank 11 reaches the predetermined test temperature. At this point, the cylinder 14 is activated. Under the command of the control system, the cylinder 14 pushes and releases the standard needle, allowing it to penetrate vertically into the asphalt sample under a certain load. The penetration depth and speed of the standard needle are important parameters for testing the viscosity of asphalt. By precisely controlling the movement of the cylinder 14, it can be ensured that the standard needle penetrates the asphalt sample at the specified speed and load, thereby obtaining accurate viscosity test results. Through this testing process, the viscosity characteristics of asphalt can be accurately evaluated, providing a scientific basis for the construction and maintenance of roads and bridges.

[0026] Reference Figure 2 - Figure 4 The guide assembly includes a slide column 15 and a slider 16. The outer wall of the slide column 15 is slidably connected to the inside of the slider 16, and the bottom of the slide column 15 is fixedly connected to the inside of the base 1.

[0027] Specifically, in this asphalt viscosity testing mechanism for roads and bridges, the sliding column 15 can provide a clear and stable guide for the slider 16, ensuring that the slider 16 moves precisely along a predetermined straight trajectory, which helps to achieve accurate position control in the lifting operation of the lifting assembly.

[0028] Reference Figure 2 - Figure 4The base 1 has a transmission rod 18 rotatably connected inside, and another transmission rod 18 is rotatably connected to a lifting plate 17 at its bottom. Both transmission rods 18 have a connecting rod 19 rotatably connected to one side of their outer walls. A connecting block 20 is rotatably connected to one side of the outer wall of the connecting rod 19. A transmission rod 21 is rotatably connected inside the connecting block 20. A fixing block 23 is fixedly connected to the top of the lifting plate 17. Another connecting block 20 is rotatably connected to one side of the outer wall of the transmission rod 21. A transmission block 22 is rotatably connected to one side of the outer wall of the other connecting block 20. A motor 24 is fixedly connected inside the fixing block 23. A gear 25 is fixedly connected to the output end of the motor 24. A toothed plate 26 is slidably connected inside the fixing block 23. The top of the toothed plate 26 is fixedly connected to the bottom of the transmission block 22. A traveling wheel 27 is rotatably connected to the bottom of the lifting plate 17.

[0029] Specifically, when the asphalt viscosity testing mechanism for roads and bridges needs to be moved, motor 24 is started first. The starting of motor 24 drives gear 25 to rotate. The rotation of gear 25, through its meshing with gear plate 26, causes gear plate 26 to move downwards and to the left. Simultaneously, the movement of gear plate 26 drives transmission block 22 to move along a specific track or guide rail. The movement of transmission block 22 is connected to transmission rod 21 via connecting block 20, causing transmission rod 21 to move accordingly. The movement of transmission rod 21 is transmitted to transmission rod 18 via connecting block 20, causing transmission rod 18 to be compressed, thus changing its tilt state and moving it towards a vertical state. The movement of transmission rod 18 is transmitted through connecting rod 19, causing connecting rod 19 to be subjected to force. Moving away from the fixed block 23, the connecting rod 19 moves, causing a change in the center of gravity of the entire mechanism. This causes the lifting plate 17 to be stressed, which in turn pushes the traveling wheel 27 down. The descent of the traveling wheel 27 brings the bottom of the entire testing mechanism into contact with the ground, forming a stable support point. As the traveling wheel 27 descends further, the center of gravity of the entire mechanism is further lowered, eventually causing the traveling wheel 27 to lift the entire mechanism, thus creating a movable state. At this point, the testing mechanism can be easily moved to a new location to adapt to different testing needs or for equipment maintenance and upkeep. Through this design, the asphalt viscosity testing mechanism for roads and bridges can be flexibly moved between different testing locations without affecting its testing accuracy and reliability.

[0030] Working Principle: When using this asphalt viscosity testing mechanism for roads and bridges, the heating tank 11 is first started to heat the asphalt, and the motor 4 is started simultaneously. The motor 4 drives the drive sprocket 5 to rotate, and then the drive sprocket 5 drives the driven sprocket 7 to rotate through the chain 6, causing the connecting frame 8 to rotate under force. When it rotates, it drives the gear 9 to move. At this time, through the cooperation of the gear 9 and the gear ring 10, the stirring rod 12 is driven to rotate to stir the asphalt and make it heat evenly. After heating is completed, the cylinder 14 is started to push the release standard needle, which penetrates vertically into the asphalt sample under a certain load. During testing, when the device needs to be moved, motor 24 can be started. Motor 24 drives gear 25 to rotate. The rotation of gear 25 causes gear plate 26 to move to the lower left, and at the same time, it drives transmission block 22 to move. Then, transmission block 22 drives transmission rod 21 to move through connecting block 20, which squeezes connecting rod 19. At this time, connecting rod 19 is forced to move away from fixed block 23, and drives transmission rod 18 to move from an inclined state to a vertical state. During this process, lifting plate 17 will be forced to drive traveling wheel 27 to descend until traveling wheel 27 lifts the entire mechanism, at which point it can be moved.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A road and bridge asphalt viscosity testing mechanism, comprising a base (1), characterized in that: A fixed frame (2) is fixedly connected to the top of the base (1), a bracket (13) is fixedly connected to the top of the base (1), a cylinder (14) is fixedly connected inside the bracket (13), a test needle (3) is fixedly connected to the output end of the cylinder (14), a heating barrel (11) is fixedly connected inside the base (1), a motor (4) is fixedly connected inside the fixed frame (2), a drive sprocket (5) is fixedly connected to the output end of the motor (4), and a driven sprocket (7) is rotatably connected inside the fixed frame (2). A chain (6) is provided between the driven sprocket (7) and the driving sprocket (5). A connecting frame (8) is fixedly connected inside the driven sprocket (7). Two gears (9) are rotatably connected to the bottom of the connecting frame (8). A toothed ring (10) is fixedly connected inside the heating barrel (11). The toothed ring (10) meshes with the gears (9). A stirring rod (12) is fixedly connected to the bottom of the gears (9). A guide component is provided inside the base (1). The guide component is used to guide the lifting component to move along a preset route.

2. The asphalt viscosity testing mechanism for roads and bridges according to claim 1, characterized in that: The guide assembly includes a slide column (15) and a slider (16). The outer wall of the slide column (15) is slidably connected to the inside of the slider (16), and the bottom of the slide column (15) is fixedly connected to the inside of the base (1).

3. The asphalt viscosity testing mechanism for roads and bridges according to claim 2, characterized in that: The base (1) is rotatably connected to a transmission rod (18), and the bottom of the other transmission rod (18) is rotatably connected to a lifting plate (17). Both transmission rods (18) are rotatably connected to a connecting rod (19) on one side of their outer walls.

4. The asphalt viscosity testing mechanism for roads and bridges according to claim 3, characterized in that: A connecting block (20) is rotatably connected to one side of the outer wall of the connecting rod (19), and a transmission rod (21) is rotatably connected inside the connecting block (20).

5. The asphalt viscosity testing mechanism for roads and bridges according to claim 4, characterized in that: A fixing block (23) is fixedly connected to the top of the lifting plate (17).

6. The asphalt viscosity testing mechanism for roads and bridges according to claim 5, characterized in that: The transmission rod (21) is rotatably connected to another connecting block (20) on one side of its outer wall, and the other connecting block (20) is rotatably connected to a transmission block (22) on one side of its outer wall.

7. The asphalt viscosity testing mechanism for roads and bridges according to claim 6, characterized in that: The fixed block (23) is internally connected to a second motor (24), and the output end of the second motor (24) is fixedly connected to a second gear (25). The fixed block (23) is internally connected to a toothed plate (26), and the top of the toothed plate (26) is fixedly connected to the bottom of the transmission block (22).

8. The asphalt viscosity testing mechanism for roads and bridges according to claim 6, characterized in that: The bottom of the lifting plate (17) is rotatably connected to a traveling wheel (27).

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