Full-automatic asphalt penetration detection device
By designing a fully automatic testing device and adopting a constant temperature control and motor-driven lifting mechanism, the shortcomings of existing equipment in temperature control and testing efficiency have been solved, achieving efficient and accurate asphalt penetration testing and simplifying the maintenance process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEILONGJIANG JINLI ENG TESTING CO LTD
- Filing Date
- 2025-05-12
- Publication Date
- 2026-05-01
AI Technical Summary
Existing asphalt penetration testing equipment has shortcomings such as inaccurate temperature control, low testing efficiency, cumbersome testing procedures, and complex maintenance, which cannot meet the requirements of project schedule.
A fully automatic testing device was designed, comprising a base, a level, a control mechanism, a heating column, a water container, a placement platform, a testing mechanism, and a lifting mechanism. It employs a constant temperature controller and a motor controller to achieve precise temperature control and automated testing. Combined with the lifting mechanism and multiple fixed units, it enables quick replacement of standard needles and simplifies the maintenance process.
It achieves efficient and accurate asphalt penetration testing, improves automation, ensures the reliability and efficiency of test results, and reduces maintenance costs and time.
Smart Images
Figure CN224189816U_ABST
Abstract
Description
A fully automatic asphalt penetration testing device Technical Field
[0001] This utility model belongs to the technical field of asphalt performance testing equipment, specifically a fully automatic asphalt penetration testing device. Background Technology
[0002] In road construction, asphalt is a core material, and its quality directly affects the performance and lifespan of roads. Asphalt penetration, as a key indicator for measuring the hardness and viscosity of asphalt, is crucial for accurate testing in controlling asphalt quality and ensuring the quality of road projects.
[0003] Currently, although some equipment has attempted to automate asphalt penetration testing, the overall technical level still needs improvement. Some equipment lacks precision in temperature control, making it difficult to stabilize the water temperature within the specific range required for testing. Temperature fluctuations can affect the reliability of test results. In terms of testing efficiency, some equipment has an unreasonable structural design and cumbersome testing procedures, resulting in long testing times when dealing with a large number of asphalt samples, which cannot meet the needs of project schedules. Moreover, when it is necessary to replace components such as standard needles, the maintenance procedures of some equipment are complex, increasing maintenance costs and time, and affecting the normal use of the equipment. Summary of the Invention
[0004] To address the problems existing in the background technology, this utility model provides a fully automatic asphalt penetration detection device.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: an automatic asphalt penetration testing device, comprising a base, a level, a control mechanism, a heating column, a water container, a placement platform, a testing mechanism, a lifting mechanism, and four adjusting feet;
[0006] The base is provided with four adjustable feet at its lower end. A level is provided on the base. The upper end of the base is fixedly connected to the control mechanism. The control mechanism is fixedly connected to the water container. The water container is provided with a heating column and a placement platform. The heating column is electrically connected to the control mechanism. The placement platform is correspondingly set with the detection mechanism. The detection mechanism is fixedly connected to the lifting mechanism. The lifting mechanism is fixed on the base.
[0007] The lifting mechanism includes a fixed frame, a stepper motor, a threaded rod, a slider, and a connecting block;
[0008] The fixed frame is fixedly connected to the base. The fixed frame is provided with a sliding groove, and a threaded rod is provided in the sliding groove. One end of the threaded rod is rotatably connected to the inner wall of the sliding groove, and the other end of the threaded rod is fixedly connected to the output shaft of the stepper motor. The stepper motor is fixed on the fixed frame and electrically connected to the control mechanism. The slider is threadedly connected to the threaded rod and is limited by the sliding groove. One end of the connecting block is fixedly connected to the slider, and the other end of the connecting block is fixedly connected to the detection mechanism.
[0009] The detection mechanism includes a fixed block, a turntable, an L-shaped tie rod, a limiting boss, a spring, and multiple fixing units;
[0010] The fixing block is fixedly connected to the connecting block. The fixing block has a sliding hole, and an L-shaped pull rod is installed in the sliding hole. The L-shaped pull rod has a limiting boss. The spring is fitted onto the L-shaped pull rod. One end of the spring is fixedly connected to the limiting boss, and the other end of the spring is fixedly connected to the inner wall of the sliding hole. The lower end of the fixing block is rotatably connected to the turntable. The turntable has multiple limiting grooves that match the L-shaped pull rod. Each limiting groove is used in conjunction with the L-shaped pull rod. The turntable has multiple mounting holes that are evenly distributed. Each mounting hole has an internal thread and is threadedly connected to the corresponding fixing unit.
[0011] Each of the aforementioned fixing units includes a needle housing, a needle cover, a load cell, and a standard needle;
[0012] The outer wall of the needle housing is provided with external threads and is threadedly connected to the corresponding mounting hole. A standard needle is provided inside the needle housing. The needle housing is threadedly connected to the needle cover. A load sensor is provided inside the needle cover. The load sensor is signal-connected to the control mechanism.
[0013] The control mechanism includes a housing, a thermostat, a motor controller, and a receiver;
[0014] The lower end of the housing is fixedly connected to the base, and the upper end of the housing is fixedly connected to the water container. The housing is equipped with a thermostat, a motor controller, and a receiver. The thermostat is electrically connected to the heating column, the motor controller is electrically connected to the stepper motor, and the receiver is connected to each load sensor. The outer wall of the housing is equipped with a display, which is connected to the thermostat, the motor controller, and the receiver.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] 1. High degree of automation and convenient operation: This device achieves automated control of the entire testing process through a control mechanism, including temperature regulation, motor drive, data acquisition and display, which reduces the tediousness and errors of manual operation and improves testing efficiency and accuracy.
[0017] 2. Precise temperature control: The thermostat precisely controls the heating power of the heating column, ensuring that the water temperature in the container remains stable within the specific temperature range required for asphalt penetration testing, providing a suitable testing environment for the asphalt sample and guaranteeing the reliability of the test results.
[0018] 3. High testing efficiency: The motor controller controls the rotation of the stepper motor according to the preset program, which drives the threaded rod to rotate, thereby driving the slider and the testing mechanism to move up and down, realizing rapid penetration testing of the standard needle on the asphalt sample; at the same time, the design of the turntable and multiple fixed units allows for easy replacement of different standard needles for multiple tests in one test, further improving the testing efficiency.
[0019] 4. Accurate data acquisition and display: The load sensor detects the force on the standard needle during insertion in real time and transmits the signal to the receiver in the control mechanism. After processing, the detection value is clearly displayed on the screen, which makes it easy for operators to obtain and record the detection results in a timely manner.
[0020] 5. Easy to maintain and replace: When the standard needle needs to be replaced, the replacement operation can be easily completed by simply unscrewing the needle cap. There is no need for complicated disassembly and assembly process, which reduces maintenance costs and time.
[0021] 6. Stable structure and easy adjustment: Four adjustable feet are evenly distributed at the bottom of the base to facilitate the adjustment of the device's level and ensure the stability of the testing process; at the same time, the lifting mechanism and the testing mechanism are reasonably designed, compact in structure, and easy to operate and maintain.
[0022] In summary, this fully automatic asphalt penetration testing device has the advantages of high automation, precise temperature control, high testing efficiency, accurate data acquisition and display, easy maintenance and replacement, and stable structure with convenient adjustment, providing an efficient and accurate solution for asphalt penetration testing. Attached Figure Description
[0023] Figure 1 is a front view of this utility model;
[0024] Figure 2 is a magnified view of part A in Figure 1;
[0025] Figure 3 is a schematic diagram of the fixed unit structure of this utility model. Detailed Implementation
[0026] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.
[0027] This embodiment describes a fully automatic asphalt penetration detection device, including a base 1, a level 3, a control mechanism 4, a heating column 5, a water container 6, a placement platform 7, a detection mechanism, a lifting mechanism, and four adjusting feet 2.
[0028] The base 1 has four adjustable feet 2 evenly distributed at its lower end. A level 3 is provided on the base 1. The upper end of the base 1 is fixedly connected to the control mechanism 4. The control mechanism 4 is fixedly connected to the water container 6. The water container 6 is provided with a heating column 5 and a placement platform 7. The heating column 5 is electrically connected to the control mechanism 4. The placement platform 7 is correspondingly set with the detection mechanism. The detection mechanism is fixedly connected to the lifting mechanism. The lifting mechanism is fixed on the base 1.
[0029] The lifting mechanism includes a fixed frame 8, a stepper motor 9, a threaded rod 10, a slider 11, and a connecting block 12;
[0030] The fixed frame 8 is fixedly connected to the base 1. The fixed frame 8 is provided with a sliding groove, and a threaded rod 10 is provided in the sliding groove. One end of the threaded rod 10 is rotatably connected to the inner wall of the sliding groove, and the other end of the threaded rod 10 is fixedly connected to the output shaft of the stepper motor 9. The stepper motor 9 is fixed on the fixed frame 8 and electrically connected to the control mechanism 4. The slider 11 is threadedly connected to the threaded rod 10 and is limited by the sliding groove. One end of the connecting block 12 is fixedly connected to the slider 11, and the other end of the connecting block 12 is fixedly connected to the detection mechanism.
[0031] The detection mechanism includes a fixed block 13, a turntable 14, an L-shaped pull rod 15, a limiting boss 16, a spring 17, and multiple fixing units;
[0032] The fixing block 13 is fixedly connected to the connecting block 12. The fixing block 13 is provided with a sliding hole, and an L-shaped pull rod 15 is provided in the sliding hole. The L-shaped pull rod 15 is provided with a limiting boss 16. The spring 17 is fitted on the L-shaped pull rod 15. One end of the spring 17 is fixedly connected to the limiting boss 16, and the other end of the spring 17 is fixedly connected to the inner wall of the sliding hole. The lower end of the fixing block 13 is rotatably connected to the turntable 14. The turntable 14 is evenly provided with multiple limiting grooves that match the L-shaped pull rod 15. Each limiting groove is used in conjunction with the L-shaped pull rod 15. The turntable 14 is evenly provided with multiple mounting holes. Each mounting hole is provided with an internal thread and is threadedly connected to the corresponding fixing unit.
[0033] Each of the aforementioned fixing units includes a needle housing 18, a needle cover 19, a load sensor 20, and a standard needle 21;
[0034] The outer wall of the needle housing 18 is provided with external threads and is threadedly connected to the corresponding mounting hole. A standard needle 21 is provided inside the needle housing 18. The needle housing 18 is threadedly connected to the needle cover 19. A load sensor 20 is provided inside the needle cover 19. The load sensor 20 is signal-connected to the control mechanism 4.
[0035] The control mechanism 4 includes a housing 402, a thermostat, a motor controller, and a receiver;
[0036] The lower end of the housing 402 is fixedly connected to the base 1, and the upper end of the housing 402 is fixedly connected to the water container 6. The housing 402 is equipped with a thermostat, a motor controller and a receiver. The thermostat is electrically connected to the heating column 5, the motor controller is electrically connected to the stepper motor 9, and the receiver is signal-connected to each load sensor 20. The outer wall of the housing 402 is equipped with a display 401, which is signal-connected to the thermostat, the motor controller and the receiver respectively.
[0037] When using this utility model, follow these steps: Place the container filled with asphalt on the placement platform 7, aligning it with one of the fixed units. Then, fill the water container 6 with water. The temperature of the heating column 5 is controlled by the thermostat in the control mechanism 4 to heat the water in the water container 6, maintaining the water temperature within the specific temperature range required for asphalt penetration testing. The temperature is then displayed on the display 401. The stepper motor 9 is started by the motor controller in the control mechanism 4. The stepper motor 9 drives the threaded rod 10 to rotate forward (or backward). Simultaneously, the slider 11 moves downward (or upward) under the drive of the threaded rod, causing the standard needle 21 on the corresponding fixed unit to penetrate the asphalt. When the needle is inserted, the data is transmitted in the form of a signal from the load sensor 20 inside the needle cover 19 to the receiver inside the control mechanism 4, and the value is displayed on the display 401. If multiple needle insertion tests are required, the detection mechanism is raised by the lifting mechanism, the L-shaped pull rod 15 is pulled upward, so that the L-shaped pull rod 15 leaves the corresponding limit groove, and the spring 17 is compressed. The turntable 14 is rotated so that another fixed unit reaches the preset position, the L-shaped pull rod 15 is released, and the spring force of the spring 17 makes the L-shaped pull rod 15 enter the corresponding limit groove, the turntable 14 is fixed, and then the stepper motor 9 is started to perform the insertion test. When the standard needle 21 needs to be replaced, the needle cover 19 can be unscrewed to easily replace the standard needle 21.
[0038] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of the equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A fully automatic asphalt penetration detection device, characterized in that: It includes a base (1), a level (3), a control mechanism (4), a heating column (5), a water container (6), a placement platform (7), a detection mechanism, a lifting mechanism, and four adjustable feet (2); the lower end of the base (1) is evenly provided with four adjustable feet (2), the base (1) is provided with a level (3), the upper end of the base (1) is fixedly connected to the control mechanism (4), the control mechanism (4) is fixedly connected to the water container (6), the water container (6) is provided with a heating column (5) and a placement platform (7), the heating column (5) is electrically connected to the control mechanism (4), the placement platform (7) is correspondingly set with the detection mechanism, the detection mechanism is fixedly connected to the lifting mechanism, and the lifting mechanism is fixed on the base (1).
2. The fully automatic asphalt penetration detection device according to claim 1, characterized in that: The lifting mechanism includes a fixed frame (8), a stepper motor (9), a threaded rod (10), a slider (11), and a connecting block (12). The fixed frame (8) is fixedly connected to the base (1). The fixed frame (8) is provided with a sliding groove, and the threaded rod (10) is provided in the sliding groove. One end of the threaded rod (10) is rotatably connected to the inner wall of the sliding groove, and the other end of the threaded rod (10) is fixedly connected to the output shaft of the stepper motor (9). The stepper motor (9) is fixed on the fixed frame (8) and electrically connected to the control mechanism (4). The slider (11) is threadedly connected to the threaded rod (10) and limited by the sliding groove. One end of the connecting block (12) is fixedly connected to the slider (11), and the other end of the connecting block (12) is fixedly connected to the detection mechanism.
3. The fully automatic asphalt penetration detection device according to claim 2, characterized in that: The detection mechanism includes a fixed block (13), a turntable (14), an L-shaped pull rod (15), a limiting boss (16), a spring (17), and multiple fixing units; the fixed block (13) is fixedly connected to the connecting block (12), the fixed block (13) is provided with a sliding hole, the L-shaped pull rod (15) is provided in the sliding hole, the L-shaped pull rod (15) is provided with a limiting boss (16), and the spring (17) is fitted on the L-shaped pull rod (15). One end of the spring (17) is fixedly connected to the limiting boss (16), and the other end of the spring (17) is fixedly connected to the inner wall of the sliding hole. The lower end of the fixing block (13) is rotatably connected to the turntable (14). The turntable (14) has multiple limiting grooves that match the L-shaped pull rod (15). Each limiting groove is used in conjunction with the L-shaped pull rod (15). The turntable (14) has multiple mounting holes. Each mounting hole has an internal thread and is threadedly connected to the corresponding fixing unit.
4. The fully automatic asphalt penetration detection device according to claim 3, characterized in that: Each of the fixed units includes a needle housing (18), a needle cover (19), a load sensor (20), and a standard needle (21); the outer wall of the needle housing (18) is provided with an external thread and is threadedly connected to the corresponding mounting hole; the needle housing (18) is provided with a standard needle (21); the needle housing (18) is threadedly connected to the needle cover (19); the needle cover (19) is provided with a load sensor (20); the load sensor (20) is signal-connected to the control mechanism (4).
5. The fully automatic asphalt penetration detection device according to claim 1, characterized in that: The control mechanism (4) includes a housing (402), a thermostat, a motor controller, and a receiver; the lower end of the housing (402) is fixedly connected to the base (1), and the upper end of the housing (402) is fixedly connected to the water container (6). The housing (402) is equipped with a thermostat, a motor controller, and a receiver. The thermostat is electrically connected to the heating column (5), the motor controller is electrically connected to the stepper motor (9), and the receiver is signal-connected to each load sensor (20). The outer wall of the housing (402) is equipped with a display (401), and the display (401) is signal-connected to the thermostat, the motor controller, and the receiver respectively.