Device for measuring failure of fiber cord fabric reinforced rubber composite material plate in compression mode

Abstract

The invention discloses a fiber cord fabric reinforced rubber composite material plate compression mode failure measuring device, which relates to the technical field of measuring devices and specifically comprises an environment box measuring device and a support frame measuring device arranged at the bottom of the environment box measuring device. A detection table measuring device and a bottom clamping seat measuring device are sleeved with the environment box measuring device, and the bottom clamping seat measuring device is installed at the top of the detection table measuring device. The material body measuring device generates compression deformation through compression force applied to the material body measuring device by a hydraulic rod measuring device transmission force sensing device measuring device, a bottom clamping seat measuring device and a plurality of contact type displacement sensor measuring devices, so that the use requirement of automatic detection is met, and meanwhile, the material body measuring device is prevented from being damaged. The change of the compression stress of the sample in the whole process can be recorded through the data change fed back by a pressure sensor measuring device in the force sensing device measuring device and the data feedback of the data difference between the front and back of a plurality of contact type displacement sensor measuring devices.

Description

Technical Field

[0001] This invention relates to the field of measuring devices, specifically a device for measuring compression mode failure of fiber-reinforced rubber composite panels. Background Technology

[0002] Reinforcing materials are generally materials added to rubber that can significantly improve the mechanical properties of vulcanized rubber products. They mainly include carbon black, silica, fibers, fabrics and steel wires. A common example of such technology is the use of fiber cord reinforced rubber composite sheets on the sidewalls of automobile tires during the production process.

[0003] However, in reality, after a certain period of use, the area near the tire bead on the tire sidewall is subject to cyclic compressive stress, which can easily lead to failure of the bonding interface of the fiber cord reinforced rubber composite material, resulting in delamination. This, in turn, affects the overall performance of the tire. Therefore, although the combination of reinforcing materials and corresponding materials can improve the strength of the structure itself, the specific degree of improvement and the compressive strength after assembly need to be accurately understood. Therefore, this application will provide a compression mode failure measurement device for fiber cord reinforced rubber composite material plates to solve the above-mentioned problem of lack of control over the quality of fiber cord reinforced rubber composite material plates. Summary of the Invention

[0004] This application proposes a device for measuring the compression mode failure of fiber-reinforced rubber composite panels, which solves the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this application adopts the following technical solution: a compression mode failure measurement device for fiber-reinforced rubber composite board, comprising an environmental chamber measurement device and a support frame measurement device installed at the bottom of the environmental chamber measurement device. The environmental chamber measurement device contains a detection platform measurement device and a bottom clamping seat measurement device. The bottom clamping seat measurement device is mounted on the top of the detection platform measurement device, and several contact displacement sensor measurement devices are arranged circumferentially along the structure of the bottom clamping seat measurement device. The output end of the hydraulic rod measurement device is connected to a force sensing device aligned with the bottom clamping seat measurement device. Under the transmission of the hydraulic rod measurement device, the force sensing device can compress and deform the material body measurement device carried inside the bottom clamping seat measurement device. The contact displacement sensor measurement device detects the distance difference before and after compression and feeds back the deformation amount of the material body measurement device. The force sensing device includes a support sleeve measuring device and a movable clamping plate measuring device. One end of the movable clamping plate measuring device is snapped into the inside of the support sleeve measuring device, and the pressure sensor measuring device is fitted inside one end of the support sleeve measuring device and is movably connected to the end surface of one end of the movable clamping plate measuring device. One end of the support sleeve measuring device is drively connected to the output end of the hydraulic rod measuring device.

[0006] Preferably, guide sleeves are fixed on both sides of the bottom of the hydraulic rod measuring device, and a guide rod measuring device fixed to the top of the movable clamping plate measuring device is engaged in the guide sleeves. A spring measuring device is installed between one end of the guide rod measuring device and the top of the movable clamping plate measuring device.

[0007] Preferably, the top of the measuring device of the testing platform is provided with a clearance space, and a plurality of thermocouple measuring devices are fitted on the top inner wall of the clearance space. One end of the thermocouple measuring device penetrates the top structure of the clearance space and the bottom structure of the bottom clamp measuring device and is coplanar with the bottom inner wall of the bottom clamp measuring device. The thermocouple measuring device can measure the temperature of the material body measuring device that is carried and under test in the bottom clamp measuring device.

[0008] Preferably, temperature control spaces are provided on both sides of the environmental chamber measuring device, and heating plate measuring devices are installed in each temperature control space. A temperature sensor measuring device is installed on the inner wall of the top of the environmental chamber measuring device. The front end of the environmental chamber measuring device is set as an open structure, and a door measuring device is hingedly installed inside the front end of the environmental chamber measuring device.

[0009] Preferably, the environmental chamber measuring device is internally fitted with an arc-shaped frame plate measuring device, an arc-shaped linkage plate measuring device, and a camera component measuring device. The two ends of the arc-shaped frame plate measuring device are respectively fixedly connected to the inner walls on both sides of the environmental chamber measuring device. The arc-shaped frame plate measuring device is provided with a sliding groove and an arc-shaped through groove inside. The sliding groove and the arc-shaped through groove are connected in space, and the cross-section of the sliding groove is a T-shaped structure. The arc-shaped linkage plate measuring device is snapped into the annular groove and can slide and adjust inside the arc-shaped frame plate measuring device. The bottom of the camera component measuring device is fixedly installed on the top of one end of the arc-shaped linkage plate measuring device.

[0010] Preferably, the camera component measuring device consists of a high-definition camera and a support platform fixed to the bottom of the high-definition camera, and the bottom of the support platform is fixed to the top of one end of the arc-shaped linkage plate measuring device. The camera component measuring device shoots towards the bottom clamping base measuring device, and the shooting coverage of the camera component measuring device includes the interior of the environmental chamber measuring device.

[0011] Preferably, the outer ring structure of the arc-shaped linkage plate measuring device passes through the arc-shaped through groove and extends to the outside of the arc-shaped frame plate measuring device, and an arc-shaped toothed plate measuring device is fixed on the surface of the outer ring structure of the arc-shaped linkage plate measuring device. One end of the arc-shaped frame plate measuring device is externally meshed with a gear shaft measuring device, and one end of the gear shaft measuring device can pass through the top structure of the environmental chamber measuring device and be connected to a servo motor measuring device installed on the top of the environmental chamber measuring device.

[0012] Preferably, a plurality of thermocouple measuring devices are fitted on the top inner wall and the bottom inner wall of the chute. The surface of the thermocouple measuring device is in contact with the middle surface of the arc-shaped linkage plate measuring device, and the thermocouple measuring device can perform frictional rolling as the arc-shaped linkage plate measuring device slides inside the arc-shaped frame plate measuring device.

[0013] Preferably, the thermocouple measuring devices fitted inside the top inner wall of the chute are made of rubber material, and the thermocouple measuring devices fitted inside the bottom inner wall of the chute are made of metal material.

[0014] Preferably, the guide rod measuring device has scale lines on the surface in the middle, and the top end of the supporting sleeve measuring device is configured as a T-shaped structure.

[0015] The present invention has the following beneficial effects: 1. The hydraulic rod measuring device transmits the force to the force sensing device and the bottom clamp measuring device, and multiple contact displacement sensor measuring devices apply compressive force to the material body measuring device, causing the material body measuring device to compress and deform, thus meeting the requirements of automatic detection. At the same time, the data changes fed back by the pressure sensor measuring device inside the force sensing device and the data difference before and after the multiple contact displacement sensor measuring devices can record the changes in the compressive stress of the sample throughout the entire process.

[0016] 2. The thermocouple measuring device is set up as an auxiliary structure, which can simultaneously measure the temperature of the material body measuring device during the test, further enriching the data after the test.

[0017] 3. By combining the arc-shaped linkage plate measuring device, arc-shaped frame plate measuring device, camera component measuring device, gear shaft measuring device, servo motor measuring device, and arc-shaped toothed plate measuring device into a combined image monitoring device, the servo motor measuring device can drive the arc-shaped linkage plate measuring device and camera component measuring device to rotate and shift during the subsequent detection of the material body measuring device. This allows for multi-angle image feedback of the material body measuring device, enabling real-time observation of whether the material body measuring device has failed. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the structure of the present invention; Figure 2 This is a front view schematic diagram of the structure of the present invention; Figure 3 This is a front view of the detection stage in the structure of the present invention; Figure 4 This is a top view of the bottom clamping seat in the structure of the present invention; Figure 5 This is a cross-sectional schematic diagram of the force sensing device in the structure of the present invention; Figure 6 This is a cross-sectional schematic diagram of the detection stage in the structure of the present invention; Figure 7 This is a cross-sectional schematic diagram of the arc-shaped frame plate in the structure of the present invention.

[0019] In the diagram: 1. Environmental chamber; 2. Support frame; 3. Testing table; 4. Bottom clamp; 5. Hydraulic rod; 6. Contact displacement sensor; 7. Force sensing device; 71. Support sleeve; 72. Movable clamping plate; 73. Pressure sensor; 74. Guide rod; 75. Spring; 8. Arc-shaped frame plate; 9. Arc-shaped linkage plate; 10. Camera assembly; 11. Gear shaft; 12. Servo motor; 13. Heating plate; 14. Temperature sensor; 15. Arc-shaped toothed plate; 16. Material body; 17. Thermocouple; 18. Chamber door. Detailed Implementation

[0020] The technical solution of the present invention will be clearly and completely described below with reference to preferred embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. 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.

[0021] like Figures 1-5 A device for measuring compression mode failure of a fiber-reinforced rubber composite board includes an environmental chamber 1 and a support frame 2 installed at the bottom of the environmental chamber 1. The environmental chamber 1 is equipped with a testing platform 3 and a bottom clamping seat 4. The bottom clamping seat 4 is installed on the top of the testing platform 3, and several contact displacement sensors 6 are arranged circumferentially inside the bottom clamping seat 4. The output end of the hydraulic rod 5 is connected to a force sensing device 7 aligned with the bottom clamping seat 4. Under the transmission of the hydraulic rod 5, the force sensing device 7 can compress and deform the material body 16 carried in the bottom clamping seat 4. The contact displacement sensors 6 detect the distance difference before and after detection and provide feedback on the deformation amount of the material body 16. The force sensing device 7 includes a support sleeve 71 and a movable clamping plate 72. One end of the movable clamping plate 72 is engaged inside the support sleeve 71. The pressure sensor 73 is fitted inside one end of the support sleeve 71 and is movably connected to the end surface of one end of the movable clamping plate 72. One end of the support sleeve 71 is connected to the output end of the hydraulic rod 5.

[0022] Guide sleeves are fixed on both sides of the bottom of the hydraulic rod 5, providing structural conditions for guiding and supporting subsequent related structures, further optimizing the use effect of the force sensing device 7. A guide rod 74 is fixed to the top of the movable clamping plate 72 and is snapped into the guide sleeve. As a guiding structure, the snapping of the guide rod 74 and the guide sleeve can provide auxiliary support and anti-deviation protection for the movable clamping plate 72 for subsequent reciprocating lifting. A spring 75 is installed between one end of the guide rod 74 and the top of the movable clamping plate 72. The spring 75 serves as an auxiliary reset structure and can be linked with the guide rod 74 to reset and adjust the movable clamping plate 72 after the operation is completed, creating reliable and effective structural conditions for the continued use of the force sensing device 7.

[0023] In use, the material body 16 to be tested is placed inside the bottom clamp 4, and the detection ends of several contact displacement sensors 6 installed in the bottom clamp 4 will all contact the surface of the material body 16 and apply pressure in the opposite direction to perform preliminary centering processing on the material body 16. At the same time, the distance data output by multiple contact displacement sensors 6 at this time is recorded. Next, the hydraulic rod 5 is activated, and the power sensing device 7 is moved down as a whole from the output end of the hydraulic rod 5 until the bottom of the movable clamping plate 72 inside the force sensing device 7 contacts the material body 16 and continues to move down to the set compression deformation distance. At the same time, the movable clamping plate 72 will apply reverse pressure to the pressure sensor 73, so that the pressure sensor 73 outputs pressure data synchronously, while the material body 16 undergoes synchronous compression deformation and further applies pressure to multiple contact displacement sensors 6. After the movable clamping plate 72 is compressed to the set distance, record the distance data of multiple contact displacement sensors 6 and the pressure data of pressure sensor 73 at this time. Close the hydraulic rod 5 and reset the force sensing device 7 by the output end of the hydraulic rod 5. Then, observe whether there is any delamination on the surface of the material body 16. If there is, the pressure data output by the pressure sensor 73 is the maximum compressive force that causes the material body 16 to compress and deform. The average value of the difference between the data obtained by multiple contact displacement sensors 6 before and after detection is the maximum deformation of the material body 16. If the material body 16 has not delaminated, the transmission distance of the force sensing device 7 needs to be increased according to the above steps until the material body 16 delaminates.

[0024] like Figure 6The top of the testing platform 3 has a clearance space, and the top inner wall of the clearance space is fitted with several thermocouples 17. One end of the thermocouple 17 passes through the top structure of the clearance space and the bottom structure of the bottom clamp 4 and is set on the same plane as the bottom inner wall of the bottom clamp 4. The thermocouple 17 can measure the temperature of the material body 16 that is carried in the bottom clamp 4 and is in the test state, thereby further enriching the data and further improving the test effect of the material body 16.

[0025] During use, taking into account the temperature change factor, multiple thermocouples 17 are used to simultaneously measure the temperature of the material body 16 under test. After the test is completed, the temperature data of multiple thermocouples 17 are averaged, and this temperature data is the critical temperature at which the material body 16 fails under compression.

[0026] like Figure 4 Temperature control spaces are installed on both sides of the environmental chamber 1, and heating plates 13 are installed in each temperature control space. Temperature sensors 14 are installed on the inner wall of the top of the environmental chamber 1. The front end of the environmental chamber 1 is an open structure, and a door 18 is hinged to the front end of the environmental chamber 1.

[0027] When in use, considering that different temperature conditions may have different effects on the detection of the material body 16, the heating plate 13 can be used to adjust the temperature inside the environmental chamber 1, and the chamber door 18 can cooperate with the environmental chamber 1 to achieve a relatively closed effect of the space of the environmental chamber 1 during the detection process.

[0028] like Figures 3-7 The environmental chamber 1 is internally fitted with an arc-shaped frame plate 8, an arc-shaped linkage plate 9, and a camera assembly 10. The two ends of the arc-shaped frame plate 8 are fixedly connected to the inner walls on both sides of the environmental chamber 1. The arc-shaped frame plate 8 is provided with a sliding groove and an arc-shaped through groove inside. The sliding groove and the arc-shaped through groove are connected. The cross-section of the sliding groove is a T-shaped structure. The arc-shaped linkage plate 9 is snapped into the ring groove and can slide and adjust inside the arc-shaped frame plate 8. The bottom of the camera assembly 10 is fixedly installed on the top of one end of the arc-shaped linkage plate 9. The camera assembly 10 consists of a high-definition camera and a support platform fixed to the bottom of the high-definition camera. The bottom of the support platform is fixed to the top of one end of the arc-shaped linkage plate 9. The camera assembly 10 shoots towards the bottom clamp 4, and the shooting coverage of the camera assembly 10 includes the interior of the environmental box 1.

[0029] In use, considering the observation needs during the inspection of the material body 16, the camera component 10 is used as a real-time image transmission condition to capture the instantaneous images of morphological changes and compression failures during the inspection of the material body 16, providing more data conditions for subsequent analysis and optimization.

[0030] like Figures 3-7 The outer ring structure of the arc-shaped linkage plate 9 passes through the arc-shaped through groove and extends to the outside of the arc-shaped frame plate 8. The surface of the outer ring structure of the arc-shaped linkage plate 9 is fixed with an arc-shaped toothed plate 15. One end of the arc-shaped frame plate 8 is externally meshed with a gear shaft 11. One end of the gear shaft 11 can pass through the top structure of the environmental box 1 and is connected to a servo motor 12 installed on the top of the environmental box 1.

[0031] When in use, considering the observation needs at different positions during the detection of the material body 16, the servo motor 12 can be started. The output end of the servo motor 12 meshes with the arc-shaped toothed plate 15 through the gear shaft 11, which in turn drives the camera assembly 10 to rotate and adjust inside the environmental chamber 1 through the arc-shaped linkage plate 9, so as to take pictures of the material body 16 from different angles.

[0032] like Figures 3-7 Several thermocouples 17 are fitted on the top inner wall and the bottom inner wall of the chute. The surface of the thermocouples 17 is in contact with the middle surface of the arc-shaped linkage plate 9, and the thermocouples 17 can slide and roll friably as the arc-shaped linkage plate 9 slides inside the arc-shaped frame plate 8. The several thermocouples 17 fitted on the top inner wall of the chute are made of rubber material, and the several thermocouples 17 fitted on the bottom inner wall of the chute are made of metal material. The guide rod 74 has scale lines on the middle surface, and the top end of the support sleeve 71 is set as a T-shaped structure.

[0033] During use, considering the stability and smoothness of the arc-shaped linkage plate 9 during rotation adjustment, the movement of the arc-shaped linkage plate 9 within the arc-shaped frame plate 8 is supported by thermocouples 17 made of rubber and 17 made of metal to reduce friction and dissipate energy, thus ensuring the stability of the arc-shaped linkage plate 9 in reciprocating motion. At the same time, the camera assembly 10 can monitor the usage status of the spring 75 by capturing the relative changes between the guide sleeve and the scale line.

[0034] 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 invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for measuring compression mode failure of fiber-reinforced rubber composite board, comprising an environmental chamber (1) and a support frame (2) installed at the bottom of the environmental chamber (1), characterized in that: The environmental chamber (1) is equipped with a testing platform (3) and a bottom clamping seat (4). The bottom clamping seat (4) is installed on the top of the testing platform (3), and several contact displacement sensors (6) are arranged along the circumference of the bottom clamping seat (4). The output end of the hydraulic rod (5) is connected to a force sensing device (7) aligned with the bottom clamping seat (4). Under the transmission of the hydraulic rod (5), the force sensing device (7) can compress and deform the material body (16) carried in the bottom clamping seat (4). The contact displacement sensor (6) detects the distance difference before and after and feeds back the deformation amount of the material body (16). The force sensing device (7) includes a support sleeve (71) and a movable clamping plate (72). One end of the movable clamping plate (72) is engaged inside the support sleeve (71), and the pressure sensor (73) is fitted inside one end of the support sleeve (71) and is movably connected to the end surface of one end of the movable clamping plate (72). One end of the support sleeve (71) is connected to the output end of the hydraulic rod (5).

2. The device for measuring compression mode failure of fiber-reinforced rubber composite board according to claim 1, characterized in that: Guide sleeves are fixed on both sides of the bottom of the hydraulic rod (5), and a guide rod (74) fixed to the top of the movable clamping plate (72) is snapped into the guide sleeve. A spring (75) is installed between one end of the guide rod (74) and the top of the movable clamping plate (72).

3. The device for measuring compression mode failure of fiber-reinforced rubber composite board according to claim 1, characterized in that: The top of the testing platform (3) has a clearance space, and the top inner wall of the clearance space is fitted with several thermocouples (17). One end of the thermocouple (17) penetrates the top structure of the clearance space and the bottom structure of the bottom clamp (4) and is coplanar with the bottom inner wall of the bottom clamp (4). The thermocouple (17) can measure the temperature of the material body (16) that is carried in the bottom clamp (4) and is in the test state.

4. The device for measuring compression mode failure of fiber-reinforced rubber composite board according to claim 1, characterized in that: The environmental chamber (1) has temperature control spaces installed on both sides, and heating plates (13) are installed in the temperature control spaces. Temperature sensors (14) are installed on the inner wall of the top of the environmental chamber (1). The front end of the environmental chamber (1) is set as an open structure, and a door (18) is hinged to the front end of the environmental chamber (1).

5. The device for measuring compression mode failure of fiber-reinforced rubber composite board according to claim 1, characterized in that: The environmental chamber (1) is fitted with an arc-shaped frame plate (8), an arc-shaped linkage plate (9), and a camera assembly (10) in the middle. The two ends of the arc-shaped frame plate (8) are fixedly connected to the inner walls on both sides of the environmental chamber (1). The arc-shaped frame plate (8) is provided with a sliding groove and an arc-shaped through groove inside. The sliding groove and the arc-shaped through groove are connected in space. The cross-section of the sliding groove is a T-shaped structure. The arc-shaped linkage plate (9) is snapped into the ring groove and can slide and adjust inside the arc-shaped frame plate (8). The bottom of the camera assembly (10) is fixedly installed on the top of one end of the arc-shaped linkage plate (9).

6. The device for measuring compression mode failure of fiber-reinforced rubber composite board according to claim 5, characterized in that: The camera assembly (10) consists of a high-definition camera and a support platform fixed to the bottom of the high-definition camera. The bottom of the support platform is fixed to the top of one end of the arc-shaped linkage plate (9). The camera assembly (10) shoots towards the bottom clamp (4), and the camera assembly (10) covers the interior of the environmental box (1).

7. The device for measuring compression mode failure of fiber-reinforced rubber composite board according to claim 5, characterized in that: The outer ring structure of the arc-shaped linkage plate (9) passes through the arc-shaped through groove and extends to the outside of the arc-shaped frame plate (8). The surface of the outer ring structure of the arc-shaped linkage plate (9) is fixed with an arc-shaped toothed plate (15). One end of the arc-shaped frame plate (8) is externally meshed with a gear shaft (11). One end of the gear shaft (11) can pass through the top structure of the environmental box (1) and is connected to a servo motor (12) installed on the top of the environmental box (1).

8. The device for measuring compression mode failure of fiber-reinforced rubber composite board according to claim 5, characterized in that: The top inner wall and the bottom inner wall of the chute are each fitted with a number of thermocouples (17). The surface of the thermocouples (17) is attached to the middle surface of the arc-shaped linkage plate (9), and the thermocouples (17) can slide and rub against each other as the arc-shaped linkage plate (9) slides inside the arc-shaped frame plate (8).

9. The device for measuring compression mode failure of fiber-reinforced rubber composite board according to claim 7, characterized in that: The thermocouples (17) fitted inside the top inner wall of the chute are made of rubber, and the thermocouples (17) fitted inside the bottom inner wall of the chute are made of metal.

10. The device for measuring compression mode failure of fiber-reinforced rubber composite board according to claim 2, characterized in that: The guide rod (74) has scale lines on its surface in the middle, and the top end of the support sleeve (71) is set as a T-shaped structure.

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