Intelligent tire inner surface sensor adhesion fatigue performance detection device

Abstract

The application relates to the technical field of tire detection, and discloses a device for detecting the adhesion fatigue performance of an inner surface sensor of an intelligent tire, which comprises a bottom plate, left and right sides of the top of the bottom plate are fixedly connected with connecting plates, and the connecting plates are fixedly connected with connecting rods. The device is provided with a connecting rod, a movable sleeve, a flexible inner roller, a sensor and a rubber test piece. When a first motor starts to operate, the motor drives a fixed roller to rotate, at this time, the fixed roller drives the connecting rod, the movable sleeve and the flexible inner roller to rotate, so that the flexible inner roller drives the rubber test piece on the surface to rotate synchronously, after the rubber test piece is periodically contacted and loaded and unloaded with the simulated road surface conveying belt, the adhesion fatigue life of the rubber test piece is detected in real time by the sensor, the test cost is greatly reduced, the test period is short, when the flexible inner roller continuously rotates, a plurality of test pieces are sequentially periodically contacted and loaded with the simulated road surface conveying belt, continuous circulation detection is realized, and the detection efficiency is remarkably improved.

Description

Technical Field

[0001] This invention belongs to the field of tire testing technology, specifically a smart tire inner surface sensor adhesive fatigue performance testing device. Background Technology

[0002] Adhesive fatigue performance refers to the ability of the adhesive interface of a smart tire inner surface sensor to resist damage accumulation and maintain structural integrity under periodic dynamic stress. This key indicator is quantitatively characterized by simulating the coupling effect of repeated deformation and thermal effects during actual tire driving, combined with peel strength attenuation rate, interface crack propagation threshold and dynamic mechanical response parameters, thus providing a core evaluation basis for the long-term reliability of the sensor.

[0003] During the development and quality assessment of intelligent tire sensor bonding processes, operators frequently use corresponding performance testing devices to perform fatigue performance testing on the bonding interface between the sensor and tire rubber. While existing performance testing devices possess basic load testing capabilities, most typically involve directly bonding the sensor to the inner surface of a complete tire and then mounting it on a drum test bench or conducting road tests. This not only requires the manufacture of finished tires, leading to high testing costs and long cycles, but also exposes tires of different specifications and batches to variations in inner surface curvature, rubber formulation, and vulcanization processes. Directly using finished tires for testing results in a complex mix of influencing factors, making it difficult to establish a unified standard for evaluating bonding fatigue performance and resulting in poor comparability of test results. Therefore, improvements are needed. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an intelligent tire inner surface sensor adhesive fatigue performance testing device, which has the advantage of standardized test specimens.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an intelligent tire inner surface sensor adhesive fatigue performance testing device, comprising a base plate, connecting plates fixedly connected to the left and right sides of the top of the base plate, a movable plate movably connected to the inner surface of the connecting plates, support plates fixedly connected to the left and right sides of the top of the movable plates, a first motor fixedly connected to the right side of the support plate, a first rotating shaft fixedly sleeved at the other end of the output shaft of the first motor, the other end of the first rotating shaft penetrating the support plate and extending to the inner surface of the support plate and fixedly sleeved with a fixed roller, a connecting rod fixedly connected to the outer surface of the fixed roller, a movable sleeve movably sleeved on the inner surface of the connecting rod, a flexible inner roller fixedly connected to the outer surface of the movable sleeve, a sensor movably connected to the inner surface of the flexible inner roller, a rubber test piece fixedly connected to the outer surface of the sensor, and the outer surface of the rubber test piece movably connected to the inner surface of the flexible inner roller.

[0006] Preferably, electric push rods are fixedly connected to both the left and right sides of the top of the base plate, and the top of the electric push rods is fixedly connected to the bottom of the movable plate.

[0007] Preferably, an installation rod is movably sleeved on the outer surface of the flexible inner roller, and the other end of the installation rod passes through the flexible inner roller and extends into the inner cavity of the flexible inner roller and is fixedly sleeved with an eccentric rod, and a sleeve rod is movably connected to the outer surface of the eccentric rod.

[0008] Preferably, a pin is fixedly connected to the inner side of the sleeve rod, and the other end of the pin rod passes through the flexible inner roller and extends to the inner surface of the rubber test piece and is movably sleeved with the inner surface of the rubber test piece.

[0009] Preferably, a spring is fixedly connected to the outer side of the sleeve rod, and the other end of the spring is fixedly connected to the inner surface of the flexible inner roller.

[0010] Preferably, a fixed frame is fixedly connected to the top of the base plate, a second motor is fixedly connected to the outer surface of the fixed frame, a second rotating shaft is fixedly sleeved at the other end of the output shaft of the second motor, the other end of the second rotating shaft passes through the fixed frame and extends into the inner cavity of the fixed frame and is movably sleeved with a moving plate, and an active roller is fixedly sleeved on the outer surface of the second rotating shaft.

[0011] Preferably, a driven roller is movably connected between the fixed frame and the movable plate, and the driven roller is connected to the driving roller via a simulated road conveyor belt.

[0012] Preferably, a rectangular plate is fixedly connected to the top of the base plate, a third motor is fixedly connected to the outer surface of the rectangular plate, a double-threaded rod is fixedly sleeved at the other end of the output shaft of the third motor, the other end of the double-threaded rod passes through the rectangular plate and extends to the inner surface of the rectangular plate and is threadedly sleeved with a sliding block, a sloping hollow rod is fixedly connected to the left side of the sliding block, a fixed rod is movably connected to the inner surface of the sloping hollow rod, and the left side of the fixed rod is fixedly connected to the right side of the moving plate.

[0013] Preferably, the top of the base plate is provided with a sliding groove, and the inner surface of the sliding groove is movably connected to the outer surface of the movable plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention, by setting up a connecting rod, a movable sleeve, a flexible inner roller, a sensor, and a rubber test piece, allows the first motor to drive the first rotating shaft to rotate when it starts running. At this time, the fixed roller will drive the connecting rod, the movable sleeve, and the flexible inner roller to rotate, thereby causing the rubber test piece on the surface of the flexible inner roller to rotate synchronously. When the rubber test piece comes into periodic contact with the simulated road conveyor belt for loading and unloading, the sensor detects the real-time adhesion fatigue life of the rubber test piece. The testing cost is greatly reduced and the cycle is short. When the flexible inner roller rotates continuously, multiple sets of test pieces come into periodic contact with the simulated road conveyor belt in sequence, realizing continuous cyclic detection, which significantly improves the detection efficiency and facilitates the comparative evaluation of test pieces with different bonding processes.

[0015] 2. This invention, by setting up an installation rod, an eccentric rod, a sleeve rod, a pin rod, and a spring, allows the eccentric rod to rotate synchronously when a special tool is inserted into the installation rod and rotated. The eccentric rod then presses against the sleeve rod, causing the sleeve rod to drive the pin rod away from the rubber test piece after overcoming the spring force, until the pin rod disengages from the inner surface of the rubber test piece. This releases the fixation effect on the rubber test piece and sensor, facilitating easy replacement of the rubber test piece. The replacement of a single set of rubber test pieces and sensors can be completed within seconds, significantly shortening the test piece replacement time and improving testing efficiency. This structure also allows operators to alternately test multiple sets of test pieces with different bonding processes on the same equipment, enabling rapid comparison and optimization of process parameters.

[0016] 3. This invention, by setting up a double-headed threaded rod, sliding blocks, inclined hollow rods, fixed rods, and a moving plate, starts a third motor, causing the double-headed threaded rod to rotate. At this time, the two sliding blocks will drive the two inclined hollow rods to move horizontally in opposite directions along the top of the base plate. The inclined hollow rods will squeeze and push the fixed rod, causing the fixed rod to drive the moving plate to slide horizontally to the left under the limiting action of the slide groove. This allows the driven roller and the second rotating shaft to disengage from the inner surface of the moving plate. At this time, the operator can directly remove the simulated road conveyor belt, thus quickly disassembling and assembling the worn simulated road conveyor belt. The disassembly and assembly operation is simple and convenient, and the disassembly and assembly process of the simulated road conveyor belt does not require the operator to use other tools. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a cross-sectional view of the electric actuator of the present invention. Figure 3 This is a cross-sectional view of the movable sleeve of the present invention; Figure 4 This is a cross-sectional view of the No. 2 rotating shaft of the present invention; Figure 5 This is a cross-sectional view of the flexible inner roller of the present invention; Figure 6 This is a schematic diagram of the eccentric rod of the present invention; Figure 7 This is a cross-sectional view of the movable plate of the present invention.

[0018] In the diagram: 1. Base plate; 2. Connecting plate; 3. Movable plate; 4. Support plate; 5. First motor; 6. No. 1 rotating shaft; 7. Fixed roller; 8. Connecting rod; 9. Movable sleeve; 10. Flexible inner roller; 11. Sensor; 12. Rubber test piece; 13. Mounting rod; 14. Eccentric rod; 15. Sleeve rod; 16. Pin rod; 17. Spring; 18. Fixing frame; 19. Second motor; 20. No. 2 rotating shaft; 21. Driving roller; 22. Driven roller; 23. Simulated road conveyor belt; 24. Rectangular plate; 25. Third motor; 26. Double-ended threaded rod; 27. Sliding block; 28. Inclined hollow rod; 29. ​​Fixed rod; 30. Moving plate; 31. Slide groove; 32. Electric push rod. Detailed Implementation

[0019] Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] like Figures 1 to 7 As shown, this embodiment of the invention provides an intelligent tire inner surface sensor adhesive fatigue performance testing device, including a base plate 1, connecting plates 2 fixedly connected to the left and right sides of the top of the base plate 1, a movable plate 3 movably connected to the inner surface of the connecting plate 2, support plates 4 fixedly connected to the left and right sides of the top of the movable plate 3, a first motor 5 fixedly connected to the right side of the support plate 4, a first rotating shaft 6 fixedly sleeved at the other end of the output shaft of the first motor 5, the other end of the first rotating shaft 6 passing through the support plate 4 and extending to the inner surface of the support plate 4 and fixedly sleeved with a fixed roller 7, a connecting rod 8 fixedly connected to the outer surface of the fixed roller 7, a movable sleeve 9 movably sleeved on the inner surface of the connecting rod 8, a flexible inner roller 10 fixedly connected to the outer surface of the movable sleeve 9, a sensor 11 movably connected to the inner surface of the flexible inner roller 10, a rubber test piece 12 fixedly connected to the outer surface of the sensor 11, and the outer surface of the rubber test piece 12 movably connected to the inner surface of the flexible inner roller 10.

[0021] The inner surface of the movable sleeve 9 is smooth. This design makes the sliding of the connecting rod 8 on the inner surface of the movable sleeve 9 smoother, avoiding the connection rod 8 from getting stuck. At the same time, it reduces the friction between the connecting rod 8 and the movable sleeve 9, and improves the service life of the connecting rod 8 and the movable sleeve 9.

[0022] Among them, electric push rods 32 are fixedly connected to the left and right sides of the top of the base plate 1, and the top of the electric push rods 32 is fixedly connected to the bottom of the movable plate 3.

[0023] When the electric push rod 32 starts running, it will drive the movable plate 3 to move the flexible inner roller 10 and the rubber test piece 12 downwards synchronously.

[0024] Among them, the outer surface of the flexible inner roller 10 is movably sleeved with an installation rod 13, the other end of the installation rod 13 passes through the flexible inner roller 10 and extends into the inner cavity of the flexible inner roller 10 and is fixedly sleeved with an eccentric rod 14, and the outer surface of the eccentric rod 14 is movably connected with a sleeve rod 15.

[0025] When a special tool is inserted into the mounting rod 13 and rotated, it will drive the eccentric rod 14 to rotate synchronously, causing the eccentric rod 14 to press against the inner wall of the sleeve rod 15.

[0026] The sleeve rod 15 is fixedly connected to the inner side of the pin rod 16. The other end of the pin rod 16 passes through the flexible inner roller 10 and extends to the inner surface of the rubber test piece 12 and is movably sleeved with the inner surface of the rubber test piece 12.

[0027] Once the pin 16 disengages from the inner surface of the rubber test piece 12, the fixing effect on the rubber test piece 12 will be released.

[0028] A spring 17 is fixedly connected to the outer side of the sleeve rod 15, and the other end of the spring 17 is fixedly connected to the inner surface of the flexible inner roller 10.

[0029] Due to the elastic force of spring 17, sleeve 15 has a good reset effect.

[0030] The base plate 1 is fixedly connected to the top of the fixed frame 18. The outer surface of the fixed frame 18 is fixedly connected to the second motor 19. The other end of the output shaft of the second motor 19 is fixedly sleeved with the second rotating shaft 20. The other end of the second rotating shaft 20 passes through the fixed frame 18 and extends into the inner cavity of the fixed frame 18 and is movably sleeved with the moving plate 30. The outer surface of the second rotating shaft 20 is fixedly sleeved with the drive roller 21.

[0031] When the second motor 19 starts running, it will drive the second rotating shaft 20 to rotate the drive roller 21.

[0032] A driven roller 22 is movably connected between the fixed frame 18 and the movable plate 30. The driven roller 22 is connected to the driving roller 21 via a simulated road conveyor belt 23.

[0033] When the driving roller 21 rotates, it will drive the driven roller 22 to rotate synchronously through the simulated road conveyor belt 23.

[0034] A rectangular plate 24 is fixedly connected to the top of the base plate 1. A third motor 25 is fixedly connected to the outer surface of the rectangular plate 24. A double-threaded rod 26 is fixedly sleeved at the other end of the output shaft of the third motor 25. The other end of the double-threaded rod 26 passes through the rectangular plate 24 and extends to the inner surface of the rectangular plate 24, and a sliding block 27 is threadedly sleeved thereon. A sloping hollow rod 28 is fixedly connected to the left side of the sliding block 27. A fixed rod 29 is movably connected to the inner surface of the sloping hollow rod 28. The left side of the fixed rod 29 is fixedly connected to the right side of the moving plate 30.

[0035] When the third motor 25 starts running, it will drive the double-headed threaded rod 26 to rotate. At this time, the sliding block 27 will drive the inclined hollow rod 28 to move horizontally in opposite directions and squeeze the fixed rod 29, causing the fixed rod 29 to drive the moving plate 30 to slide to the left.

[0036] The bottom plate 1 has a groove 31 on its top, and the inner surface of the groove 31 is movably connected to the outer surface of the movable plate 30.

[0037] Due to the limiting effect of the slide groove 31, the horizontal sliding of the moving plate 30 has a good reset effect.

[0038] Working principle and usage process of this invention: Start the first motor 5 and the second motor 19, so that the first rotating shaft 6 drives the fixed roller 7 and the flexible inner roller 10 to rotate. The second rotating shaft 20 drives the driven roller 22 to rotate synchronously through the active roller 21 and the simulated road conveyor belt 23. Then, start the electric push rod 32 to drive the movable plate 3 to move the flexible inner roller 10 down until the rubber test piece 12 and the sensor 11 contact the simulated road conveyor belt 23. During the periodic loading and unloading of the rubber test piece 12 by the simulated road conveyor belt 23, the sensor 11 detects the adhesion status in real time. When the detected value is significantly different from the previous value, it is judged that the adhesion has detached. At this time, the corresponding rubber test piece 12 needs to be removed. Insert the special tool into the installation rod 13 and rotate it to drive the eccentric rod 14 to rotate and squeeze the sleeve rod 15. The sleeve rod 15 drives the pin rod 16 to overcome the elastic force of the spring 17 and move away from the rubber test piece 12 until it detaches from the inner surface of the rubber test piece 12, thereby releasing the fixation of the rubber test piece 12 and the sensor 11. In this way, the replacement of a single set of rubber test pieces 12 and sensors 11 can be completed in a few seconds.

[0039] When the simulated road conveyor belt 23 needs to be replaced due to surface wear after long-term testing, simply start the third motor 25 to rotate the double-headed threaded rod 26. The two sliding blocks 27 will then drive the two inclined hollow rods 28 to move horizontally in opposite directions along the top of the base plate 1. The inclined hollow rods 28 will press and push the fixed rod 29, causing the fixed rod 29 to drive the moving plate 30 to slide horizontally to the left under the limiting action of the slide groove 31. This will cause the driven roller 22 and the second rotating shaft 20 to disengage from the inner surface of the moving plate 30. Then, the operator can directly remove the simulated road conveyor belt 23 to complete the quick disassembly and assembly. The whole process does not require the use of other tools and is easy to operate.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A smart tire inner surface sensor adhesive fatigue performance testing device, characterized in that, The base plate (1) is fixedly connected to the left and right sides of the top of the base plate (1). A movable plate (3) is movably connected to the inner surface of the connecting plate (2). A support plate (4) is fixedly connected to the left and right sides of the top of the movable plate (3). A first motor (5) is fixedly connected to the right side of the support plate (4). A first rotating shaft (6) is fixedly sleeved at the other end of the output shaft of the first motor (5). The other end of the first rotating shaft (6) passes through the support plate (4) and extends to the inner surface of the support plate (4). A fixed roller (7) is fixedly sleeved on the outer surface of the fixed roller (7). A connecting rod (8) is fixedly connected to the outer surface of the connecting rod (8). A movable sleeve (9) is movably sleeved on the inner surface of the movable sleeve (9). A flexible inner roller (10) is fixedly connected to the outer surface of the flexible inner roller (10). A sensor (11) is movably connected to the inner surface of the flexible inner roller (10). A rubber test piece (12) is fixedly connected to the outer surface of the sensor (11). The outer surface of the rubber test piece (12) is movably connected to the inner surface of the flexible inner roller (10).

2. The intelligent tire inner surface sensor adhesive fatigue performance testing device according to claim 1, characterized in that: Electric push rods (32) are fixedly connected to the left and right sides of the top of the base plate (1), and the top of the electric push rods (32) is fixedly connected to the bottom of the movable plate (3).

3. The intelligent tire inner surface sensor adhesive fatigue performance testing device according to claim 1, characterized in that: An installation rod (13) is movably sleeved on the outer surface of the flexible inner roller (10). The other end of the installation rod (13) passes through the flexible inner roller (10) and extends into the inner cavity of the flexible inner roller (10), and is fixedly sleeved with an eccentric rod (14). A sleeve rod (15) is movably connected to the outer surface of the eccentric rod (14).

4. The intelligent tire inner surface sensor adhesive fatigue performance testing device according to claim 3, characterized in that: A pin (16) is fixedly connected to the inner side of the sleeve (15). The other end of the pin (16) passes through the flexible inner roller (10) and extends to the inner surface of the rubber test piece (12) and is movably sleeved with the inner surface of the rubber test piece (12).

5. The intelligent tire inner surface sensor adhesive fatigue performance testing device according to claim 3, characterized in that: A spring (17) is fixedly connected to the outside of the sleeve rod (15), and the other end of the spring (17) is fixedly connected to the inner surface of the flexible inner roller (10).

6. The intelligent tire inner surface sensor adhesive fatigue performance testing device according to claim 1, characterized in that: A fixed frame (18) is fixedly connected to the top of the base plate (1). A second motor (19) is fixedly connected to the outer surface of the fixed frame (18). A second rotating shaft (20) is fixedly sleeved at the other end of the output shaft of the second motor (19). The other end of the second rotating shaft (20) passes through the fixed frame (18) and extends into the inner cavity of the fixed frame (18) and is movably sleeved with a moving plate (30). An active roller (21) is fixedly sleeved on the outer surface of the second rotating shaft (20).

7. The intelligent tire inner surface sensor adhesive fatigue performance testing device according to claim 6, characterized in that: A driven roller (22) is movably connected between the fixed frame (18) and the movable plate (30), and the driven roller (22) is connected to the driving roller (21) via a simulated road conveyor belt (23).

8. The intelligent tire inner surface sensor adhesive fatigue performance testing device according to claim 1, characterized in that: A rectangular plate (24) is fixedly connected to the top of the base plate (1). A third motor (25) is fixedly connected to the outer surface of the rectangular plate (24). A double-headed threaded rod (26) is fixedly sleeved at the other end of the output shaft of the third motor (25). The other end of the double-headed threaded rod (26) passes through the rectangular plate (24) and extends to the inner surface of the rectangular plate (24), and a sliding block (27) is threadedly sleeved thereon. A sloping hollow rod (28) is fixedly connected to the left side of the sliding block (27). A fixed rod (29) is movably connected to the inner surface of the sloping hollow rod (28). The left side of the fixed rod (29) is fixedly connected to the right side of the moving plate (30).

9. The intelligent tire inner surface sensor adhesive fatigue performance testing device according to claim 1, characterized in that: The top of the base plate (1) is provided with a sliding groove (31), and the inner surface of the sliding groove (31) is movably connected to the outer surface of the movable plate (30).

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