Intelligent comprehensive performance testing tool for annular composite material and use method

Abstract

The invention belongs to the technical field of annular composite material testing equipment, and discloses an intelligent comprehensive performance testing tool for an annular composite material and a using method, and the testing tool comprises a testing workbench, an operation driving device, a tensioning stabilizing structure, an intelligent synchronous testing device and a vibration and edge warping detection mechanism. The intelligent synchronous testing device comprises a tensioning roller assembly, two balance linkage mechanisms and an intelligent synchronous detection structure. The tensioning roller assembly comprises a plurality of tensioning rollers; each balance linkage mechanism is matched with a force application control assembly through a lever linkage assembly, independently responds to the relaxation condition of the annular composite material on the corresponding side and carries out automatic compensation adjustment. The synchronous detection structure monitors motion parameters of the two balance linkage mechanisms in real time, and the deformation quantity difference of the two sides is calculated through contrastive analysis. The vibration and edge warping detection mechanism monitors the operation state through a contact type sensing element and provides a control signal for the balance linkage mechanism.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent testing equipment for annular composite materials, specifically to an intelligent strength, durability, and bilateral balance testing tool for annular composite materials and its use method. Such annular composite materials include, but are not limited to, treadmill belts, industrial transmission belts, and conveyor belts. These materials typically consist of a multi-layer composite structure, including a rubber matrix, a fiber reinforcement layer (such as polyester fiber, nylon fiber, or a steel cord), and a surface coating, exhibiting functional properties such as load-bearing, transmission, and wear resistance. Background Art

[0002] Currently, annular composite material testing technology is mainly focused on the detection of a single performance indicator, and most testing equipment lacks intelligent control functions. Chinese patent CN103512692B discloses a treadmill belt tension tester, which detects the tension of an annular composite material through a force sensor and detects the elongation of the material by the movement distance of a displacement pointer, capable of testing the static and dynamic elongation of annular composite materials. In addition, there are also durability testing machines for annular composite materials in the prior art, which apply periodic loads to the material through an impact wheel to simulate the wear during long-term use in order to evaluate the service life of the annular composite material. However, these devices generally lack intelligent real-time monitoring and automatic adjustment functions.

[0003] Although the existing annular composite material testing technology is relatively mature in some aspects, it still has the following obvious shortcomings: For example, existing testing equipment can usually only test a single performance indicator of annular composite materials and cannot simultaneously conduct comprehensive evaluations of multiple properties such as strength testing and durability testing; Furthermore, existing technologies generally ignore the problem of bilateral imbalance in annular composite materials. The left and right sides of the annular composite material may experience varying degrees of material fatigue and strength attenuation, leading to problems such as deviation and vibration during operation. Furthermore, strength testing and durability testing of annular composite materials usually need to be conducted separately, which is inefficient and makes it impossible to obtain data on the correlation changes of various performance parameters of the material during long-term use. In addition, most existing testing methods rely on manual observation and manual adjustment, lack intelligent real-time monitoring and automatic compensation functions, and cannot achieve intelligent response and automatic adjustment to changes in the strength of annular composite materials.

[0004] Therefore, it is necessary to develop an intelligent comprehensive testing tool that can simultaneously perform strength testing and bilateral balance testing of annular composite materials to improve the quality control level of annular composite materials products. Summary of the Invention

[0005] The purpose of the present invention is to provide an intelligent durability and bilateral balance testing tool for annular composite materials, so as to solve the problem in the prior art that the fatigue strength difference of the materials on both sides of the annular composite material cannot be synchronously detected in the annular composite material test, and to realize the intelligent and synchronous durability testing and bilateral balance detection of the annular composite material.

[0006] To achieve the above object, the technical solution provided by the present invention is: An intelligent strength, durability and bilateral balance test fixture for annular composite materials, comprising: a test workbench as a support platform for the test fixture; an operation drive device for driving the annular composite material to operate to simulate an actual operating state; and a tensioning stabilizing structure for maintaining stable operation of the annular composite material. In particular, it also includes: The intelligent synchronous testing device includes: a tensioning roller assembly, including multiple tensioning rollers, configured to form an enveloping contact with the annular composite material to transmit the material deformation effect; two balancing linkage mechanisms, respectively disposed on either side of the annular composite material. Each balancing linkage mechanism cooperates with a lever linkage assembly and a force control assembly to independently respond to the relaxation of the annular composite material on its corresponding side and perform intelligent compensation adjustment; and a synchronous detection structure for real-time monitoring of the motion parameters of the two balancing linkage mechanisms. The vibration and warping detection mechanism includes: detection frames symmetrically arranged on both sides of the annular composite material, each detection frame includes a bracket and contact sensor elements distributed on the side of the bracket, and the edge of the annular composite material is embedded with the sensor element. The deformation degree of the sensor element is used to intelligently monitor the operating status and warping of the annular composite material, and provide intelligent control signals for the start and stop of the balancing linkage mechanism.

[0007] Furthermore, the tensioning roller assembly includes three tensioning rollers, which are distributed in an inverted isosceles triangle shape, namely a movable tensioning roller located in the middle position and fixed tensioning rollers located on both sides. The annular composite material passes through the three tensioning rollers in sequence and is wrapped around the lower half of the curved surface of the movable tensioning roller. This inverted isosceles triangle distribution structure can maximize the contact area between the annular composite material and the movable tensioning roller, thereby improving the deformation transmission effect and detection sensitivity.

[0008] Furthermore, the balancing linkage mechanism includes an integrated shaft frame and a lever linkage assembly, the lever linkage assembly includes an unequal diameter balancing piece serving as a lever, the unequal diameter balancing piece includes a lever arm and an unequal diameter wheel, the unequal diameter wheel is offset and hinged with a hinge shaft serving as a lever fulcrum, and the lever structure can amplify tiny relaxation changes of the annular composite material into obvious mechanical displacement, thereby realizing intelligent and high-precision measurement.

[0009] Furthermore, the integrated shaft frame is provided with a limiting slide groove, and the articulated shaft is slidably connected in the limiting slide groove. When the unequal diameter wheel rotates downward under the lever arm, the distance between the end portion resting on the top plate of the integrated shaft frame and the center of the articulated shaft increases linearly. This linear increase design ensures a linear correspondence between the torque change and the degree of relaxation of the annular composite material, thereby achieving accurate quantitative measurement.

[0010] Furthermore, the balancing linkage mechanism also includes a force control component, which includes a steel wire rope and a constant force output device. One end of the steel wire rope is connected to the unequal diameter balancing piece, and the other end is wrapped around the constant force output device. The constant force output device can provide a stable external force to ensure the consistency and repeatability of the force during the test, and cooperate with the intelligent control system to achieve automatic adjustment.

[0011] Furthermore, a sliding sleeve is provided on the end of the movable tensioning roller, and the sliding sleeve is connected to the integrated shaft frame for sliding up and down movement. The sliding sleeve structure ensures the stable movement of the movable tensioning roller during the intelligent adjustment process, avoiding test errors caused by unstable movement.

[0012] Furthermore, the synchronous detection structure includes a horizontal frame, a horizontal support box and a measuring instrument. The two ends of the horizontal frame pass through the steel wire rope and are both placed on the upper end of the horizontal support box. A displacement sensor is installed inside the horizontal support box, and the measuring instrument is installed in the middle position of the upper end of the horizontal frame. Through the cooperation of the displacement sensor and the measuring instrument, the displacement and angle change of the balance linkage mechanism on both sides can be obtained at the same time, realizing dual-parameter synchronous detection.

[0013] Furthermore, the measuring instrument adopts a level or an inclinometer, which can accurately measure the tilt angle of the horizontal frame, intuitively reflect the difference in deformation amount on both sides of the annular composite material, and realize real-time analysis in conjunction with the data processing system.

[0014] Furthermore, the contact sensing element is a brush, which has good flexibility and sensitivity and can keenly sense the slight vibration and warping changes of the edge of the annular composite material, providing accurate status feedback signals for the intelligent control system.

[0015] Furthermore, the operating drive device includes a driving motor, a synchronous belt, an active roller and a driven roller, the synchronous belt connects the driving motor and the active roller, and the annular composite material is installed on the active roller and the driven roller; the test fixture also includes a size adjustment device, which is connected to the active roller and the driven roller, including a length adjustment structure and a width adjustment structure, so that the test fixture can adapt to annular composite materials of different lengths and widths, expand the application range, and is equipped with a parameter adjustment function.

[0016] The present invention also provides a method for using the above-mentioned test fixture for testing, comprising the following steps: S1) Tool preparation step: installing the annular composite material to be tested on the test tool, adjusting the tool to adapt to the material specifications using the size adjustment device, and starting the operation drive device to drive the annular composite material; S2) a condition monitoring step: monitoring the operating condition of the annular composite material through a vibration and warping detection mechanism, and automatically adjusting tooling parameters according to the monitoring results until the annular composite material is in a preset working condition; S3) Synchronous testing step: activating the intelligent synchronous testing device, wherein two balancing linkage mechanisms independently monitor and adjust two sides of the annular composite material. When slack in the annular composite material is detected, the corresponding balancing linkage mechanism automatically performs compensatory adjustments via the lever linkage assembly and the force control assembly. S4) Data acquisition step: acquiring motion parameters of the two balancing linkage mechanisms in real time through a synchronous detection structure, and recording relevant data during the test process; S5) Result processing step: Analyze and process the acquired data to obtain relevant performance parameters of the annular composite material.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. High-precision bilateral detection mechanism: Two independent balancing linkage mechanisms are set on both sides of the annular composite material. Each mechanism adopts a lever structure with unequal diameter balance parts. It can amplify the tiny relaxation changes of the annular composite material into obvious mechanical displacement, realizing the precise detection of the fatigue strength difference of the material on both sides of the annular composite material.

[0018] 2. Linearized measurement system: The limited slide of the integrated shaft frame cooperates with the unequal diameter wheel, so that the distance between the unequal diameter wheel and the center of the hinge axis increases linearly during rotation. This ensures a linear correspondence between the torque change and the degree of relaxation of the annular composite material, realizes the quantitative measurement of the deformation of the annular composite material, and avoids nonlinear errors.

[0019] 3. Intelligent automatic compensation and constant force control: The constant force output device in the force control component can provide a stable and consistent external force. When the annular composite material is detected to be loose, the unequal diameter balance piece is driven by a steel wire rope to automatically adjust the position of the movable tensioning roller, so that the annular composite material returns to the preset tension state, ensuring the continuity of the test process and the repeatability of the data.

[0020] 4. Intelligent synchronous dual-parameter detection technology: The synchronous detection structure connects the horizontal support boxes on both sides through a horizontal frame. In combination with a displacement sensor and a measuring instrument (level or inclinometer), it can simultaneously obtain two parameters: displacement and angle change, realizing multi-dimensional quantitative analysis of the deformation differences on both sides of the annular composite material.

[0021] 5. High-sensitivity status monitoring: The vibration and warping detection mechanism uses a brush as a contact sensor element. The flexible characteristics of the brush enable it to sensitively sense subtle vibrations and warping changes on the edge of the annular composite material, providing accurate start-stop control signals for the balancing linkage mechanism to achieve status judgment.

[0022] 6. Stable mechanical transmission: The sliding sleeve at the end of the movable tensioning roller forms a stable sliding connection with the integrated shaft bracket, ensuring the smooth movement of the movable tensioning roller during the adjustment process, eliminating the test error caused by mechanical shaking, and improving the reliability of the test results.

[0023] 7. Optimized geometric layout: The tension roller assembly is arranged in an inverted isosceles triangle shape, with the movable tension roller located in the middle and the annular composite material wrapped around its lower half curved surface. This layout maximizes the contact area between the annular composite material and the tension roller, enhancing the deformation transfer effect.

[0024] 8. Wide applicability: The length adjustment structure and width adjustment structure of the size adjustment device enable the test fixture to adapt to annular composite materials of different specifications, including treadmill belts of different thicknesses, industrial conveyor belts of different widths, conveyor belts of different materials, etc., expanding the application range of the equipment and realizing a multi-purpose intelligent testing platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic structural diagram of Example 1; Figure 2 This is a schematic diagram of a portion of the structure of the annular composite material in Example 1 when it is not installed; Figure 3 This is a schematic diagram of the structure of the intelligent synchronization test device in Example 1; Figure 4 Schematic diagram of the structure of the balancing linkage mechanism in Example 1; Figure 5 This is a schematic diagram of the initial structure of the annular composite material test in Example 1; Figure 6 This is a schematic diagram of the structure of the annular composite material test wire rope in Example 1 when it is pulled to the limit; Figure 7 This is a partial enlarged view of point Ⅰ in Example 1; Figure 8 This is a schematic structural diagram of Example 2.

[0026] Reference numerals: Annular composite material 01, test bench 10, operation drive device 20, size adjustment device 30, tensioning stabilization structure 40, intelligent synchronous testing device 50, vibration and warping detection mechanism 60, control cabinet 70, first mounting plate 11, second mounting plate 12, drive motor 21, synchronous belt 22, active roller 23, driven roller 24, end frame 25, length adjustment structure 31, width adjustment structure 32, connecting plate frame 41, stabilization component 42, tensioning roller assembly 51, balancing linkage mechanism 52, synchronous detection structure 53, detection frame 6 1. Sliding guide rail 311, guide slot 321, movable tensioning roller 511, fixed tensioning roller 512, integrated shaft frame 521, lever linkage assembly 522, force control assembly 523, horizontal frame 531, horizontal support box 532, measuring instrument 533, bracket 612, brush 613, top plate 5211, unequal diameter balancing piece 5221, lever arm 5222, unequal diameter wheel 5223, hinge shaft 5224, limiting slot 5225, sliding sleeve 5226, wire rope 5231, constant force output device 5232, protrusion 80. DETAILED DESCRIPTION

[0027] Example 1:

[0028] This embodiment provides an intelligent strength, durability, and bilateral balance testing tool for annular composite materials. It utilizes existing technology to simulate the operation of an annular composite material for a certain period of time, and then detects the durability of the material by testing the deformation degree and material relaxation strength of the annular composite material. At the same time, through a specific structural design, the difference in tension strength and the uneven attenuation of material fatigue strength on both sides of the annular composite material under the same operating conditions are obtained and compared and analyzed, thereby simultaneously realizing intelligent testing of the durability and bilateral balance of the annular composite material.

[0029] refer to Figure 1 、 Figure 2 , the test tooling includes: The test bench 10 is used as a support and mounting platform for the test fixture. The following devices are installed on the test bench 10. The operating drive device 20 uses a double-roller closed-loop drive structure to drive the annular composite material 01 to operate, simulating actual operating conditions. It includes a drive motor 21, a synchronous belt 22, a driving roller 23, and a driven roller 24. The annular composite material 01 is mounted on the driving roller 23 and the driven roller 24. The synchronous belt 22 connects the output end of the drive motor 21 to the driving roller 23 for transmission. The actual use state of the annular composite material 01 is simulated by continuous operation; (This is a known technology in the art and will not be described in detail). The size adjustment device 30 is connected to the active roller 23 and the driven roller 24 and includes a length adjustment structure 31 and a width adjustment structure 32. This allows for the installation of annular composite materials 01 of varying lengths and widths. The device can also adjust the tension of the annular composite materials 01 to ensure that annular composite materials 01 of varying thicknesses and fiber densities can obtain appropriate pre-tension. The tensioning and stabilizing structure 40 is provided along the length direction of the annular composite material 01 to ensure the stable operation of the annular composite material 01, reduce the loosening of the annular composite material 01 caused by vibration, and improve the measurement accuracy; Intelligent synchronous test device 50 is the core innovation part of this test tool. Figure 3 , including a tensioning roller assembly 51 for transmitting the deformation effect of the annular composite material 01, a two-balance linkage mechanism 52 for converting the deformation amount of the annular composite material 01 to facilitate measurement, and a synchronous detection structure 53 for displaying the detection results; The vibration and warping detection mechanism 60 includes two detection frames 61 symmetrically installed on both sides of the annular composite material 01, which serve as the basis for judging the operation of the two balancing linkage mechanisms 52, and are used to amplify the vibration amplitude and vibration frequency of the annular composite material 01 when it is initially installed, so as to facilitate the observation of whether the annular composite material 01 is running smoothly and determine the time to officially start the test of the annular composite material 01.

[0030] refer to Figure 3 ,in: The tension roller assembly 51 includes multiple tension rollers. In this embodiment, three tension rollers are preferably arranged in an inverted isosceles triangle, namely a movable tension roller 511 located in the middle and fixed tension rollers 512 located on both sides. The annular composite material 01 passes through the three tension rollers in sequence and is wrapped around the lower half of the curved surface of the movable tension roller 511 (see FIG. Figure 4 ); Two balancing linkage mechanisms 52 are respectively provided at both ends of the tensioning roller assembly 51. Each balancing linkage mechanism 52 is fixedly connected to the end of the fixed tensioning roller 512 on the corresponding side, and is movably connected to the end of the movable tensioning roller 511 on the corresponding side. In other words, the balancing linkage mechanism 52 is independently adjustable up and down for the movable tensioning roller 511 on both sides. After the relaxation strength of the annular composite material 01 decreases (the relaxation strength usually has an uneven characteristic on both sides), the annular composite material 01 can be restored to the expected balance by intelligently adjusting the up and down movement of the movable tensioning roller 511 on one side, so that the annular composite material 01 is re-tensioned to the set stress level. The synchronous detection structure 53 is linked between the two balancing linkage mechanisms 52 and can simultaneously obtain the motion information of the two balancing linkage mechanisms 52 to intelligently calculate the deformation of the annular composite material 01.

[0031] The testing principle of the intelligent synchronization testing device 50 is as follows: During operation, the annular composite material 01 may relax due to material fatigue, resulting in a decrease in strength. This weakens the wrapping support force between the annular composite material 01 and the active tensioning roller 511. Since the fatigue levels of the materials on both sides of the annular composite material 01 typically differ, this relaxation often occurs asymmetrically. At this point, the two independent balancing linkage mechanisms 52 respond to the relaxation on their respective sides. Through their respective force control assemblies 523, the active tensioning rollers 511 on the corresponding sides independently move downward, re-pressing the corresponding positions on the annular composite material 01 and restoring the tension to the annular composite material 01. The intelligent synchronous detection structure 53 monitors the motion parameters of the two balancing linkage mechanisms 52 in real time, including their displacement, rotation angle, and motion time. By intelligently comparing and analyzing the motion differences between the two mechanisms from the start to the end of the test, the magnitude of the imbalance in material strength attenuation on the left and right sides of the annular composite material 01 is determined, thereby assessing the strength difference between the two edges of the annular composite material 01. Simultaneously, intelligent comparative analysis is performed on parameters such as the motion trajectory, response speed, and final position of the two balancing linkage mechanisms 52, quantifying the strength balance symmetry of the two sides of the annular composite material 01 under the same operating conditions, ensuring the accuracy and reliability of the test results. In order to achieve precise compensation adjustment, the intelligent synchronous detection structure 53 is equipped with a calculation control module. By obtaining the displacement values ​​L1 and L2 of the displacement sensors on both sides, the displacement difference ΔL=|L1-L2| is intelligently calculated. When ΔL is greater than the preset threshold ΔL0, the downward movement distance of the movable tensioning roller is calculated according to the compensation adjustment formula ΔH=K×ΔL, where K is a compensation coefficient pre-calibrated according to the material properties of the annular composite material 01, and usually takes a value of 0.8-1.2. This calculation method can quickly determine a reasonable compensation adjustment amount to ensure that both sides of the annular composite material 01 always maintain a balanced tension state.

[0032] Specifically, the balance linkage mechanism 52 adopts an unequal diameter-lever composite structure, which can be referred to Figure 4-Figure 6 ,include: The integrated shaft bracket 521 is connected to the upper end of the test bench 10 and serves as an integrated mounting component for other components of the mechanism. It is also fixedly connected to the fixed tensioning roller 512. The lever linkage assembly 522 is the core assembly of the mechanism, and includes an unequal diameter balance piece 5221 as a lever. The unequal diameter balance piece 5221 is symmetrically arranged on both sides of the integrated shaft frame 521 (such as Figure 4 As shown), including a lever arm 5222 and an unequal diameter wheel 5223 (as Figure 5 As shown in FIG), the upper end of the unequal diameter wheel 5223 abuts against the top plate 5211 of the integrated shaft frame 521, and at the same time, the unequal diameter wheel 5223 is offset and hinged with a hinge shaft 5224 as a lever fulcrum, and the hinge shaft 5224 is slidably connected to the limiting slide groove 5225 of the integrated shaft frame 521 (as shown in FIG). Figure 5As shown), it is also connected to the movable tensioning roller 511 through a connecting rod (the connecting rod is not shown in the figure), which can be referred to Figure 5 At the beginning of the test of the annular composite material 01, the hinge shaft 5224 is located at the top of the limiting slide groove 5225, and the end of the unequal diameter wheel 5223 that is shorter than the center of the hinge shaft is against the top plate 5211. Moreover, as the force arm 5222 rotates downward, the distance between the end of the unequal diameter wheel 5223 that is against the top plate 5211 and the center of the hinge shaft 5224 increases linearly.

[0033] The force control assembly 523 is provided at the lower end of each lever arm 5222 and is used to independently apply a preset external force to the unequal diameter balancing member 5221 on the corresponding side, driving the unequal diameter wheel 5223 to rotate, thereby driving the movable tensioning roller 511 on the corresponding side to move downward, thereby realizing force control adjustment.

[0034] In this embodiment, reference Figure 4 The force control component 523 can use a steel wire rope 5231, one end of which is connected to the unequal diameter balance piece 5221, and the other end is wound around a constant force output device 5232 that can provide a constant external force. The constant force output device 5232 can adopt a servo winch, a magnetic powder brake, a torque motor, etc.; wherein, the start of the constant force output device 5232 can be determined by the intelligent control signal transmitted when the corresponding detection frame 61 detects that the annular composite material 01 is relaxed, and its stopping movement can be determined by the signal transmitted when the corresponding lever linkage component is in torque balance.

[0035] To ensure that the movable tension roller 511 can move stably under the drive of the connecting rod, it is necessary to avoid the annular composite material 01 shaking or deflecting during operation due to its unstable movement, which may affect the accuracy of the test. Figure 4 The end of the movable tensioning roller 511 is covered with a sliding sleeve 5226, and the sliding sleeve 5226 is connected to the integrated shaft frame 521 for vertical sliding connection.

[0036] The balancing linkage mechanism 52 cooperates with the vibration and warping detection mechanism 60 and the synchronous detection structure 53 throughout the entire test process. The overall test process is as follows: When the annular composite material 01 is initially installed, the size adjustment device 30, the synchronous belt 22, the tensioning and stabilizing structure 40, etc. may not have been installed in the optimal position, resulting in a large vibration amplitude of the annular composite material 01 during operation. At this time, the vibration and warping detection mechanism 60 can be used to intelligently monitor the stability of the annular composite material 01 during operation. If the vibration amplitude is still large, the relevant structures or components are adjusted until the annular composite material 01 reaches a state where testing can begin. Then, the synchronous detection structure 53 is adjusted so that the motion parameters on both sides of the annular composite material 01 are consistent or the difference is negligible, thereby ensuring the accuracy and reliability of the test results. The two detection frames 61 of the vibration and warping detection mechanism 60 are further utilized to intelligently monitor the slack of the two sides of the annular composite material 01. When one side is more relaxed, the synchronous detection structure 53 immediately starts the calculation program: first, the current values ​​L1 and L2 of the displacement sensors on both sides are read, and the displacement difference ΔL=|L1-L2| is calculated; if ΔL is greater than the preset threshold ΔL0 (usually set to 0.5-2.0mm), the required compensation adjustment amount is calculated according to the formula ΔH=K×ΔL; then, the wrapping support force of the annular composite material 01 on this side applied to the movable tensioning roller 511 is reduced, and the torque on both sides of the unequal diameter balancing member 5221 is unbalanced. At the same time, the force control component 523 receives the intelligent control signal from the calculation control module, which activates the constant force outputter 5232 and winds the wire rope 5231, accurately pulling the unequal diameter balancing member 5221 to rotate the corresponding angle, causing the movable tensioning roller 511 to move down a distance ΔH; The annular composite material 01 continues to be tested in a tensioned state, and according to the above steps, the looseness monitoring of both sides of the annular composite material 01 and the subsequent movement of the corresponding movable tensioning roller 511 are repeated to tension the annular composite material 01 again; When the annular composite material 01 stops running after reaching the test time, the rotation angle of the unequal diameter balance piece 5221 or the height difference of a certain position of the wire rope 5231 can be measured through the synchronous detection structure 53, thereby indirectly measuring the deformation amount on both sides of the annular composite material 01.

[0037] refer to Figure 2 The synchronous detection structure 53 includes a horizontal frame 531, both ends of which pass through the wire rope 5231 and are placed on the upper end of the horizontal support box 532 (see Figure 5 ), the horizontal support box 532 can be slidably and fixedly passed through the steel wire rope 5231, and a displacement sensor (the displacement sensor is not shown in the figure) is installed inside the horizontal support box 532 for monitoring the distance between the horizontal support box 532 and the constant force output device 5232. A measuring instrument 533 is installed in the middle position of the upper end of the horizontal frame 531. The measuring instrument 533 can be a level meter or an inclinometer. When the detection frame 61 detects that the annular composite material 01 test can be started, the horizontal support boxes 532 and the horizontal frame on both sides are adjusted so that the lower ends of the two horizontal support boxes 532 remain in the same horizontal plane and the horizontal frame 531 also remains in a horizontal state.

[0038] At the beginning of the test of the annular composite material 01, the force control components 523 on both sides provide the same preset external force, and the initial values ​​of the displacement sensors and measuring instrument 533 on both sides are recorded. When the annular composite material 01 becomes unevenly relaxed, the corresponding steel wire rope 5231 pulls the unequal diameter balance piece 5221 on that side to rotate, causing the horizontal support boxes 532 on both sides to experience asynchronous displacement changes. The positions of both ends of the horizontal frame 531 relative to the initial moment also change. At this time, the displacement sensor values ​​on both sides and the measuring instrument 533 values ​​are recorded and input into the computer system for calculation and analysis. Repeat multiple stages of testing, in which the content of one stage of testing is the content described in the aforementioned test principle process (i.e., the overall testing process of the balancing linkage mechanism, the vibration and warping detection mechanism, and the synchronous detection structure). When one stage of testing is completed and the annular composite material 01 becomes loose and irreversible, the loosened annular composite material 01 can be re-tightened by the length adjustment structure 31, and the unequal diameter balancing piece 5221 can be adjusted to return to its initial state where its shorter end is against the top plate 5211. Then, the first stage of testing and analysis and calculation are started again to improve the durability of each side of the annular composite material 01 and the accuracy and reliability of the bilateral balance of the annular composite material 01.

[0039] refer to Figure 7 The detection frame 61 includes a bracket 612 and several brushes 613 distributed on the side of the bracket 612. The edge of the annular composite material 01 is embedded between the brushes 613. The degree of up and down shaking of the brush 613 and the degree of deformation of the brush 613 can be observed to determine whether the annular composite material 01 can be tested.

[0040] At the same time, the detection frame 61 can also understand the warping of the edge of the annular composite material 01 after running for a certain period of time based on the degree of deformation.

[0041] The vibration and warping detection mechanism 60 can also be equipped with a capture camera (the capture camera is not shown in the figure) for high-definition photography of the deformation degree of the brush, thereby improving the accurate judgment of the operating status and warping of the annular composite material 01 and realizing visual monitoring.

[0042] To ensure the accuracy of the test of the annular composite material 01, it is necessary to ensure that the annular composite material 01 is in a tensioned state during installation and remains stable during operation. Figure 2 , now its installation structure is described in detail.

[0043] The operating drive device 20, the active roller 23 and the synchronous testing device 50 are all installed on the test workbench 10 through the first mounting plate 11, and the driven roller 24 and the detection frame 61 are all installed on the test workbench 10 through the second mounting plate 12. The end frames 25 are detachably installed at both ends of the active roller 23 and the driven roller 24, and the tensioning roller assembly 51 and the balancing linkage mechanism 52 are detachably installed through threaded connection, thereby facilitating the wrapping installation of the annular composite material 01 on each roller.

[0044] The length adjustment structure 31 adjusts and tensions the annular composite material 01 by moving one end of the driven roller 24. It includes a sliding guide rail 311 arranged on the test workbench 10, and the second mounting plate 12 is slidably installed on the sliding guide rail 311. It can be driven by a motor or pneumatic components or hydraulic components to achieve length adjustment.

[0045] The width adjustment structure 32 includes a plurality of guide grooves 321, which are respectively slidably connected to the end frame 25 of one side of the active roller 23, the end frame 25 of one side of the driven roller 24, and the balancing linkage mechanism 52 on one side, and are fixed by standard parts such as bolts or screws to adapt to annular composite materials 01 of different widths.

[0046] The tensioning stabilization structure 40 includes a connecting plate frame 41 that is slidably connected to the second mounting plate 12, and the driven roller 24 is installed on the connecting plate frame 41. The connecting plate frame 41 is abutted against a stabilizing component 42 along the length direction of the annular composite material 01. The stabilizing component 42 can be realized by using a bolt with one end abutting against the connecting plate frame 41 and the other end being threadedly connected to a fixed support block.

[0047] Furthermore, the stabilizing component 42 is provided with two groups, and the other group is in contact with the driving motor 21 along the length direction of the annular composite material 01. On the one hand, it can buffer a part of the motor vibration and improve the stability of the operation of the annular composite material 01. On the other hand, it cooperates with the driving motor 21 to improve its fixed drive after the sliding connection with the first mounting plate 11. Therefore, the tension of the synchronous belt 22 wound between the driving motor 21 and the active roller 23 can be adjusted and kept stable, thereby ensuring the stable power transmission of the driving motor 21 to the annular composite material 01.

[0048] The test fixture is further equipped with a control cabinet 70 , which can adjust the parameters of the electric components, hydraulic components, or pneumatic components involved in this embodiment.

[0049] Example 2:

[0050] refer to Figure 8 The difference between this embodiment and embodiment 1 lies in the difference of the lever linkage assembly 522. In this embodiment, the shape of the unequal diameter wheel 5223 is slightly changed, and the limiting sliding groove 5225 (such as Figure 8 As shown, the unequal-diameter wheel 5223 can only rotate via the hinge shaft 5224. The protrusion 80 of the unequal-diameter wheel 5223 then pushes the movable tensioning roller 511 downward via the sliding sleeve 5226 during rotation. To ensure that the movable tensioning roller 511 returns to its original position during repeated testing, a return spring (not shown) is connected to the upper end of the sliding sleeve 5226. Therefore, when the external force of the force control assembly 523 is adjusted to disengage the unequal-diameter balancing member 5221 from the sliding sleeve 5226, the sliding sleeve 5226 can drive the movable tensioning roller 511 upward to its original position via the return spring.

[0051] Compared to Example 1, which directly controls the downward movement or return of the movable tension roller 511 by adjusting the stable tension of the wire rope 5231, this embodiment uses the protrusion 80 of the unequal-diameter wheel 5223 to push the movable tension roller 511 downward, and then uses the elastic force of the return spring to return it to its original position. The design of Example 1 can more accurately control the elastic recovery force of the annular composite material 01, achieving more accurate intelligent mechanical property testing. Therefore, the lever linkage assembly 522 of the present invention preferably adopts the structure of Example 1.

Claims

1. An intelligent comprehensive performance testing tool for annular composite materials, comprising: A test bench (10) serving as a support platform for the test fixture; An operating drive device (20) for driving the annular composite material (01) to operate to simulate an actual operating state; A tension stabilizing structure (40) for maintaining operational stability of the annular composite material; It is characterized by further comprising: An intelligent synchronous testing device (50) comprises: A tensioning roller assembly (51) includes a plurality of tensioning rollers for forming a wrapping contact with the annular composite material to transmit a deformation effect of the annular composite material; two balancing linkage mechanisms (52) are respectively arranged on both sides of the annular composite material, each balancing linkage mechanism cooperates with a lever linkage assembly and a force control assembly to independently respond to the relaxation of the annular composite material on the corresponding side and perform intelligent compensation adjustment; a synchronous detection structure (53) is used to monitor the motion parameters of the two balancing linkage mechanisms in real time; The vibration and warping detection mechanism (60) comprises: Detection frames (61) are symmetrically arranged on both sides of the annular composite material. Each detection frame includes a frame and contact sensing elements distributed on the sides of the frame. The sensing elements are embedded in the edges of the annular composite material. The deformation degree of the sensing elements is used to intelligently monitor the operating state and edge warping of the annular composite material, and provide intelligent control signals for the start and stop of the balancing linkage mechanism.

2. The intelligent comprehensive performance testing tool for annular composite materials according to claim 1, characterized in that: The tensioning roller assembly (51) comprises three tensioning rollers distributed in an inverted isosceles triangle shape, namely a movable tensioning roller (511) located in the middle and fixed tensioning rollers (512) located on both sides, and drives the annular composite material to pass through the three tensioning rollers in sequence and wrap around the lower half curved surface of the movable tensioning roller.

3. The intelligent comprehensive performance testing tool for annular composite materials according to claim 2, characterized in that: The balancing linkage mechanism (52) comprises an integrated shaft frame (521) and a lever linkage assembly (522); the lever linkage assembly comprises an unequal diameter balancing piece (5221) serving as a lever; the unequal diameter balancing piece comprises a lever arm (5222) and an unequal diameter wheel (5223); the unequal diameter wheel is offset and hinged with a hinge shaft (5224) serving as a lever fulcrum.

4. The intelligent comprehensive performance testing tool for annular composite materials according to claim 3, characterized in that: The integrated shaft frame (521) is provided with a limiting slide groove (5225), and the hinge shaft (5224) is slidably connected in the limiting slide groove. When the unequal diameter wheel (5223) rotates downward on the lever arm, the distance between the end portion resting on the top plate of the integrated shaft frame and the center of the hinge shaft increases linearly.

5. The intelligent comprehensive performance testing tool for annular composite materials according to claim 3, characterized in that: The balancing linkage mechanism (52) further comprises a force control assembly (523), wherein the force control assembly (523) comprises a steel wire rope (5231) and a constant force output device (5232), wherein one end of the steel wire rope (5231) is connected to the unequal diameter balancing member (5221), and the other end is wound around the constant force output device (5232).

6. The intelligent comprehensive performance testing tool for annular composite materials according to claim 4, characterized in that: The end of the movable tensioning roller (511) is sleeved with a sliding sleeve (5226), and the sliding sleeve is connected to the integrated shaft frame (521) in an upward and downward sliding manner.

7. The intelligent comprehensive performance testing tool for annular composite materials according to claim 5, characterized in that: The synchronous detection structure (53) comprises a horizontal frame (531), a horizontal support box (532) and a measuring instrument (533). Both ends of the horizontal frame (531) pass through the steel wire rope (5231) and are both placed on the upper end of the horizontal support box (532). A displacement sensor is installed inside the horizontal support box (532). The measuring instrument is installed in the middle position of the upper end of the horizontal frame (531).

8. The intelligent comprehensive performance testing tool for annular composite materials according to claim 7, characterized in that: The measuring instrument (533) is a level meter or an inclinometer.

9. The intelligent comprehensive performance testing tool for annular composite materials according to claim 1, characterized in that: The contact sensing element is a brush (613).

10. The intelligent comprehensive performance testing tool for annular composite materials according to claim 1, characterized in that: The operation drive device (20) includes a drive motor (21), a synchronous belt (22), an active roller (23) and a driven roller (24), wherein the synchronous belt connects the drive motor and the active roller, and drives the annular composite material to be installed on the active roller and the driven roller; the test fixture also includes a size adjustment device (30), wherein the size adjustment device (30) is connected to the active roller and the driven roller, and includes a length adjustment structure (31) and a width adjustment structure (32).

11. A method for using the test fixture according to claim 1 for testing, characterized in that: The following steps are involved: S1) Tool preparation step: installing the driven annular composite material (01) to be tested on the test tool, adjusting the tool to adapt to the specifications of the driven annular composite material through the size adjustment device (30), and starting the driving device (20) to drive the annular composite material to operate; S2) a state monitoring step: monitoring the operating state of the driven annular composite material through a vibration and warping detection mechanism (60), and adjusting tooling parameters according to the monitoring results until the driven annular composite material is in a preset working state; S3) Synchronous testing step: starting the synchronous testing device (50), the two balancing linkage mechanisms (52) independently monitor and adjust the two sides of the driving annular composite material, and when the driving annular composite material is detected to be loose, the displacement values ​​L1 and L2 of the displacement sensors on both sides and the angle value α of the measuring instrument are obtained through the synchronous detection structure (53), and the displacement difference ΔL=|L1-L2| is calculated. When ΔL is greater than the preset threshold ΔL0, the downward movement distance of the movable tensioning roller is determined according to the calculation formula of the compensation adjustment amount ΔH=K×ΔL, where K is a preset compensation coefficient, and the corresponding balancing linkage mechanism is accurately adjusted according to the calculated compensation adjustment amount ΔH through the lever linkage component and the force control component; S4) Data acquisition step: obtaining the motion parameters of the two balancing linkage mechanisms (52) in real time through the synchronous detection structure (53), and recording relevant data during the test process; S5) Result processing step: Analyze and process the acquired data to obtain relevant performance parameters of the driving annular composite material.

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