A device for detecting the viscosity of reclaimed asphalt concrete

Abstract

The utility model discloses a kind of viscidity detection devices of recycled asphalt concrete, it is related to road engineering material detection technical field.The utility model includes mounting bracket, and the detection cylinder is fixedly connected in mounting bracket inner chamber bottom, and the detection mechanism is fixedly connected in mounting bracket inner chamber top, and the cleaning mechanism is fixedly connected in mounting bracket inner chamber one side.The utility model is driven gear plate by first gear, so that first detection rod realizes transverse movement, cooperate first tension detector, can accurately detect viscidity performance of recycled asphalt concrete when transverse stress;Meanwhile, the connecting plate and second detection rod are driven by screw rod connected to the bottom of first gear and carry out vertical direction movement, in combination with second tension detector, the viscidity characteristics of material under vertical stress state can be effectively determined, this double-dimension detection mode can comprehensively simulate the complex stress, such as vehicle vertical pressure, tire lateral friction force, which recycled asphalt concrete bears in actual road engineering.

Description

Technical Field

[0001] This utility model belongs to the field of road engineering material testing technology, and in particular relates to a device for testing the viscosity of recycled asphalt concrete. Background Technology

[0002] In the field of road construction, recycled asphalt concrete is gradually becoming an important choice for road materials due to its significant advantages such as resource recycling, reduced construction costs and reduced environmental pollution. Its viscosity, as a key performance indicator, directly affects the mechanical properties, workability and service life of the material and the road surface. Accurate detection of viscosity is the core link to ensure the quality of road engineering.

[0003] Currently, existing recycled asphalt concrete viscosity testing devices on the market have many problems that need to be solved. On the one hand, most testing devices can only achieve single-dimensional testing and cannot fully simulate the complex stress environment that the material is subjected to during actual road use. Recycled asphalt concrete in actual roads is not only subjected to the vertical pressure generated by vehicle loads, but also to multi-directional forces such as the lateral friction force from tires. Single-dimensional test data cannot truly reflect the comprehensive performance of the material, resulting in large deviations in the test results and failing to provide reliable data support for engineering design and construction. On the other hand, the cleaning function of existing devices is generally weak. After the test is completed, a large amount of recycled asphalt concrete remains on the inner wall of the testing cylinder. Traditional cleaning methods often rely on manual scraping or simple rinsing, which is not only inefficient, but also difficult to completely remove stubborn adhered materials.

[0004] To address these issues, we provide a device for testing the viscosity of recycled asphalt concrete. Utility Model Content

[0005] The purpose of this invention is to provide a device for testing the viscosity of recycled asphalt concrete. By combining the testing mechanism and the cleaning mechanism, it solves the problem that existing devices for testing the viscosity of recycled asphalt concrete can only perform single-dimensional testing and are unable to completely remove the material adhering to the cylinder wall.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a device for testing the viscosity of recycled asphalt concrete, comprising a mounting frame. A testing cylinder is fixedly connected to the bottom of the inner cavity of the mounting frame, and a testing mechanism is fixedly connected to the top of the inner cavity of the mounting frame. A cleaning mechanism is fixedly connected to one side of the inner cavity of the mounting frame. The testing mechanism includes a first motor, the top of which is fixedly connected to the mounting frame. A first gear is fixedly connected to the output end of the first motor. A toothed plate meshes with one side of the first gear. One side of the toothed plate is slidably connected to the mounting frame. A first tensile detector is fixedly connected to the other side of the toothed plate. A first testing rod is fixedly connected to the bottom of the first tensile detector. A lead screw is fixedly connected to the bottom of the first gear, and a connecting plate is threaded onto the surface of the lead screw. Both sides of the plate are slidably connected to the mounting frame. A second tension detector is fixedly connected to the bottom of the connecting plate, and a second detection rod is fixedly connected to the bottom of the second tension detector. The bottoms of the first and second detection rods extend into the inner cavity of the detection cylinder, allowing them to penetrate deep into the interior of the recycled asphalt concrete sample for testing. Limiting rods are fixedly connected to both sides of the mounting frame. The surfaces of the limiting rods are slidably connected to the connecting plate. There are two limiting rods, located on both sides of the connecting plate, providing precise guidance and limiting for the connecting plate. A limiting plate is provided on one side of the first motor. The top of the limiting plate is fixedly connected to the mounting frame, and a groove is opened on one side of the bottom of the limiting plate. The toothed plate is slidably connected to the groove on one side. The groove can limit the range of motion and operation mode of the toothed plate.

[0008] The present invention is further configured such that the cleaning mechanism includes a second motor, the bottom of the second motor is fixedly connected to the mounting bracket, a second gear is fixedly connected to the output end of the second motor, a gear plate meshes with one side of the second gear, the inner side of the gear plate is rotatably connected to the detection cylinder, a connecting rod is fixedly connected to the top of the gear plate, a cleaning rod is slidably connected to the inner cavity of the connecting rod, a brush is fixedly connected to one side of the cleaning rod, a scraper is provided on one side of the brush, and one side of the scraper is fixedly connected to the cleaning rod. The second motor is located on one side of the detection cylinder, a buckle is movably connected to the surface of the cleaning rod, and a slot is opened on the surface of the connecting rod. One side of the buckle is slidably connected to the slot, which can ensure that the cleaning rod will not automatically rise due to the second spring during the cleaning process, resulting in ineffective cleaning.

[0009] The present invention is further configured such that a sleeve is slidably connected to one side of the second tension detector, and a first spring is fixedly connected to both sides of the top of the sleeve. The top of the first spring is fixedly connected to the second tension detector. A cleaning brush is fixedly connected to the inner cavity of the sleeve. There are multiple cleaning brushes. By pulling the sleeve, the material attached to the surface of the second detection rod can be cleaned, and then the first spring is reset to avoid the sleeve from contacting the material.

[0010] The present invention is further configured such that a discharge pipe is provided on one side of the second motor, the top of the discharge pipe is fixedly connected to the detection cylinder, and the discharge pipe is used to discharge the material after detection to ensure the continuity of detection.

[0011] The present invention is further configured such that a solenoid valve is provided at the bottom of the detection cylinder, and one side of the solenoid valve is fixedly connected to the discharge pipe. By controlling the on and off of the solenoid valve, the timing and flow rate of the discharge of recycled asphalt concrete samples in the detection cylinder can be precisely adjusted.

[0012] The present invention is further configured such that a serpentine tube is fixedly connected to the inner cavity of the detection cylinder, and a heating wire is fixedly connected to the bottom of the inner cavity of the detection cylinder. The combination of the heating wire and the serpentine tube allows the temperature inside the detection cylinder to be flexibly adjusted within a large range, which can meet the diverse requirements of different types of recycled asphalt concrete for detection temperature.

[0013] The present invention is further configured such that a groove is provided on the surface of the connecting rod, and one side of the cleaning rod is slidably connected to the groove, wherein the groove can limit the range of motion of the cleaning rod.

[0014] The present invention is further configured such that a second spring is provided in the inner cavity of the groove, the bottom of the second spring is fixedly connected to the connecting rod, a guide rod is provided inside the second spring, the top of the guide rod is fixedly connected to the cleaning rod, and the bottom of the guide rod is slidably connected to the connecting rod. The provision of the second spring ensures that the cleaning rod will not drop due to its own weight during the detection process, causing the brush and scraper to directly contact the material.

[0015] The present invention has the following beneficial effects.

[0016] 1. This utility model testing mechanism integrates lateral and vertical testing functions into one unit. The first gear drives the toothed plate, enabling the first testing rod to move laterally. Combined with the first tension detector, it can accurately detect the viscosity properties of recycled asphalt concrete under lateral stress. At the same time, the lead screw connected to the bottom of the first gear drives the connecting plate and the second testing rod to move vertically. Combined with the second tension detector, it can effectively determine the viscosity characteristics of the material under vertical stress. This dual-dimensional testing mode can comprehensively simulate the complex stresses such as vehicle vertical pressure and tire lateral friction that recycled asphalt concrete is subjected to in actual road engineering. Compared with traditional single-dimensional testing devices, the test data can more realistically reflect the comprehensive properties of the material.

[0017] 2. The cleaning mechanism of this utility model uses a second motor as a power source. Through the meshing transmission of the second gear and the gear plate, the gear plate is driven to rotate along the inner side of the detection cylinder. This causes the cleaning assembly, consisting of the connecting rod, cleaning rod, brush, and scraper, to make a circular motion around the inner wall of the detection cylinder. During this process, the brush can effectively remove loose materials adhering to the inner wall of the detection cylinder, while the scraper, with its sharp edge, can powerfully scrape off stubbornly adhering recycled asphalt concrete. The two work together to achieve all-round, no-dead-angle cleaning of the inner wall of the detection cylinder. Whether it is liquid asphalt remaining during the detection process or blocky materials after cooling and solidification, they can be removed quickly and efficiently. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 This is a three-dimensional diagram of a device for testing the viscosity of recycled asphalt concrete.

[0020] Figure 2 This is a three-dimensional view of the testing mechanism in a device for testing the viscosity of recycled asphalt concrete.

[0021] Figure 3 This is a three-dimensional view of the cleaning mechanism in a device for testing the viscosity of recycled asphalt concrete.

[0022] Figure 4 This is a three-dimensional view of the testing cylinder in a device for testing the viscosity of recycled asphalt concrete.

[0023] Figure 5 This is an enlarged view of point A in a device for testing the viscosity of recycled asphalt concrete.

[0024] In the attached diagram: 1. Mounting bracket; 2. Detection cylinder; 3. Detection mechanism; 301. First motor; 302. First gear; 303. Gear plate; 304. First tensile detector; 305. First detection rod; 306. Lead screw; 307. Connecting plate; 308. Second tensile detector; 309. Second detection rod; 4. Cleaning mechanism; 401. Second motor; 402. Second gear; 403. Gear plate; 404. Connecting rod; 405. Cleaning rod; 406. Brush; 407. Scraper; 5. Sleeve; 6. First spring; 7. Cleaning brush; 8. Discharge pipe; 9. Solenoid valve; 10. Coil; 11. Heating wire; 12. Groove; 13. Second spring; 14. Guide rod. Detailed Implementation

[0025] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments. Example 1

[0026] Please see Figure 1-5 This utility model is a device for testing the viscosity of recycled asphalt concrete, including a mounting frame 1. A testing cylinder 2 is fixedly connected to the bottom of the inner cavity of the mounting frame 1, and a testing mechanism 3 is fixedly connected to the top of the inner cavity of the mounting frame 1. A cleaning mechanism 4 is fixedly connected to one side of the inner cavity of the mounting frame 1. The testing mechanism 3 includes a first motor 301, the top of which is fixedly connected to the mounting frame 1. A first gear 302 is fixedly connected to the output end of the first motor 301. A toothed plate 303 meshes with one side of the first gear 302. One side of the toothed plate 303 is slidably connected to the mounting frame 1. A first tensile detector 304 is fixedly connected to the other side of the toothed plate 303. A first testing rod 305 is fixedly connected to the bottom of the first tensile detector 304. A lead screw 306 is fixedly connected to the bottom of the first gear 302. A connecting plate 307 is threadedly connected to the surface of the lead screw 306. Both sides of the connecting plate 307 are slidably connected to the mounting frame 1. A second tensile detector 308 is fixedly connected to the bottom of the connecting plate 307. A second testing rod 309 is fixedly connected to the bottom of the second tensile detector 308.

[0027] Specifically: The bottoms of the first detection rod 305 and the second detection rod 309 both extend into the inner cavity of the detection cylinder 2, allowing them to penetrate deep into the recycled asphalt concrete sample for testing. Limiting rods are fixedly connected to both sides of the mounting frame 1. The surfaces of the limiting rods are slidably connected to the connecting plate 307. There are two limiting rods, located on both sides of the connecting plate 307, providing precise guidance and limiting for the connecting plate 307. A limiting plate is provided on one side of the first motor 301. The top of the limiting plate is fixedly connected to the mounting frame 1. A groove is opened on one side of the bottom of the limiting plate. One side of the toothed plate 303 is slidably connected to the groove. The groove can limit the range of motion and operation mode of the toothed plate 303. Example 2

[0028] Please see Figure 1-5Based on Embodiment 1, the cleaning mechanism 4 includes a second motor 401. The bottom of the second motor 401 is fixedly connected to the mounting bracket 1. A second gear 402 is fixedly connected to the output end of the second motor 401. A gear plate 403 meshes with one side of the second gear 402. The inner side of the gear plate 403 is rotatably connected to the detection cylinder 2. A connecting rod 404 is fixedly connected to the top of the gear plate 403. A cleaning rod 405 is slidably connected to the inner cavity of the connecting rod 404. A brush 406 is fixedly connected to one side of the cleaning rod 405. A scraper 407 is provided on one side of the brush 406. One side of the scraper 407 is fixedly connected to the cleaning rod 405. A sleeve 5 is slidably connected to one side of the second tension detector 308. A first spring 6 is fixedly connected to both sides of the top of the sleeve 5. The top of the first spring 6 is connected to the second tension detector 308. The detector 308 is fixedly connected. A cleaning brush 7 is fixedly connected to the inner cavity of the sleeve 5. A discharge pipe 8 is provided on one side of the second motor 401. The top of the discharge pipe 8 is fixedly connected to the detection cylinder 2. A solenoid valve 9 is provided at the bottom of the detection cylinder 2. One side of the solenoid valve 9 is fixedly connected to the discharge pipe 8. A snake tube 10 is fixedly connected to the inner cavity of the detection cylinder 2. A heating wire 11 is fixedly connected to the bottom of the inner cavity of the detection cylinder 2. A groove 12 is opened on the surface of the connecting rod 404. One side of the cleaning rod 405 is slidably connected to the groove 12. A second spring 13 is provided in the inner cavity of the groove 12. The bottom of the second spring 13 is fixedly connected to the connecting rod 404. A guide rod 14 is provided inside the second spring 13. The top of the guide rod 14 is fixedly connected to the cleaning rod 405. The bottom of the guide rod 14 is slidably connected to the connecting rod 404.

[0029] Specifically: The second motor 401 is located on one side of the detection cylinder 2. The cleaning rod 405 is movably connected to a buckle, and the connecting rod 404 has a slot. The buckle is slidably connected to the slot, which ensures that the cleaning rod 405 will not automatically rise due to the second spring 13 during the cleaning process, resulting in ineffective cleaning. There are multiple cleaning brushes 7. By pulling the sleeve 5, the material attached to the surface of the second detection rod 309 can be cleaned. Then, the first spring 6 resets the sleeve 5 to prevent it from contacting the material. The discharge pipe 8 is used to discharge the material after testing, ensuring the continuity of testing. The timing and flow rate of the discharge of recycled asphalt concrete samples in the detection cylinder 2 can be precisely adjusted by controlling the on / off state of the solenoid valve 9. The combination of the heating wire 11 and the snake tube 10 allows the temperature in the detection cylinder 2 to be flexibly adjusted within a large range, which can adapt to the diverse temperature requirements of different types of recycled asphalt concrete. The slot 12 can limit the range of motion of the cleaning rod 405. The setting of the second spring 13 ensures that the cleaning rod 405 will not fall due to its own weight during the testing process, causing the brush 406 and scraper 407 to directly contact the material.

[0030] The working principle of this utility model is as follows: Since most materials are heated and stirred before testing, and materials need to be cooled to a certain temperature before testing, the material is poured into the testing cylinder 2, and a cooling medium is injected into the coil 10 to quickly lower the material to the required testing temperature. After reaching the appropriate temperature, the first motor 301 starts and drives the first gear 302 and the lead screw 306 to rotate. The first gear 302 drives the toothed plate 303 to move, which in turn drives the first tension detector 304 to move. The first detection rod 305 follows the first tension detector 304 and moves laterally inside the material to detect the viscosity of the material under lateral force. The lead screw 306 drives the connecting plate 307 to move along the limiting rod, which in turn drives the second tension detector 308 to move. The second tension detector 308 drives the second detection rod 309 to move, measuring the viscosity of the material under lateral force. Under vertical force, the material exhibits viscous properties. After testing, the heating wire 11 heats the material inside the testing cylinder 2, and then the solenoid valve 9 is opened. The material is discharged from the testing cylinder 2 through the discharge pipe 8. When cleaning the inner wall of the testing cylinder 2 is required, the second motor 401 starts and drives the second gear 402 to rotate. The second gear 402 drives the gear disc 403 to rotate, which in turn drives the connecting rod 404 to rotate. The connecting rod 404 drives the cleaning rod 405 to rotate, and the brush 406 and scraper 407 follow the cleaning rod 405 to rotate along the inner wall of the testing cylinder 2 to clean the attached material. After cleaning, the material is disengaged from the slot by rotating the buckle. The second spring 13 extends and resets the cleaning rod 405. The cleaning rod 405 then resets the brush 406 and scraper 407, and the guide rod 14 resets along with the cleaning rod 405 to prevent the cleaning rod 405 from contacting the material.

[0031] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A device for testing the viscosity of recycled asphalt concrete, comprising a mounting frame (1), characterized in that: The bottom of the inner cavity of the mounting frame (1) is fixedly connected to a detection cylinder (2), the top of the inner cavity of the mounting frame (1) is fixedly connected to a detection mechanism (3), and one side of the inner cavity of the mounting frame (1) is fixedly connected to a cleaning mechanism (4). The detection mechanism (3) includes a first motor (301), the top of the first motor (301) is fixedly connected to the mounting frame (1), the output end of the first motor (301) is fixedly connected to a first gear (302), a toothed plate (303) meshes with one side of the first gear (302), one side of the toothed plate (303) is slidably connected to the mounting frame (1), the other side of the toothed plate (303) is fixedly connected to a first tension detector (304), the bottom of the first tension detector (304) is fixedly connected to a first detection rod (305), the bottom of the first gear (302) is fixedly connected to a lead screw (306), the surface of the lead screw (306) is threadedly connected to a connecting plate (307), both sides of the connecting plate (307) are slidably connected to the mounting frame (1), the bottom of the connecting plate (307) is fixedly connected to a second tension detector (308), and the bottom of the second tension detector (308) is fixedly connected to a second detection rod (309).

2. The device for detecting the viscosity of recycled asphalt concrete according to claim 1, characterized in that: The cleaning mechanism (4) includes a second motor (401), the bottom of which is fixedly connected to the mounting bracket (1), and a second gear (402) is fixedly connected to the output end of the second motor (401). A gear plate (403) meshes with one side of the second gear (402). The inner side of the gear plate (403) is rotatably connected to the detection cylinder (2). A connecting rod (404) is fixedly connected to the top of the gear plate (403). A cleaning rod (405) is slidably connected to the inner cavity of the connecting rod (404). A brush (406) is fixedly connected to one side of the cleaning rod (405). A scraper (407) is provided on one side of the brush (406). One side of the scraper (407) is fixedly connected to the cleaning rod (405).

3. The device for detecting the viscosity of recycled asphalt concrete according to claim 1, characterized in that: A sleeve (5) is slidably connected to one side of the second tension detector (308). A first spring (6) is fixedly connected to both sides of the top of the sleeve (5). The top of the first spring (6) is fixedly connected to the second tension detector (308). A cleaning brush (7) is fixedly connected to the inner cavity of the sleeve (5).

4. The device for detecting the viscosity of recycled asphalt concrete according to claim 2, characterized in that: The second motor (401) is provided with a discharge pipe (8) on one side, and the top of the discharge pipe (8) is fixedly connected to the detection cylinder (2).

5. The device for testing the viscosity of recycled asphalt concrete according to claim 4, characterized in that: The bottom of the detection cylinder (2) is provided with a solenoid valve (9), and one side of the solenoid valve (9) is fixedly connected to the discharge pipe (8).

6. The device for detecting the viscosity of recycled asphalt concrete according to claim 1, characterized in that: The inner cavity of the detection cylinder (2) is fixedly connected to a snake tube (10), and the bottom of the inner cavity of the detection cylinder (2) is fixedly connected to a heating wire (11).

7. The device for detecting the viscosity of recycled asphalt concrete according to claim 2, characterized in that: The connecting rod (404) has a groove (12) on its surface, and one side of the cleaning rod (405) is slidably connected to the groove (12).

8. The device for testing the viscosity of recycled asphalt concrete according to claim 7, characterized in that: The inner cavity of the slot (12) is provided with a second spring (13), the bottom of the second spring (13) is fixedly connected to the connecting rod (404), the inner side of the second spring (13) is provided with a guide rod (14), the top of the guide rod (14) is fixedly connected to the cleaning rod (405), and the bottom of the guide rod (14) is slidably connected to the connecting rod (404).

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