System and method for detecting performance of porous transmission layer under mechanical and displacement variable loads of nanoscale material

Abstract

The invention relates to the technical field of hydrogen energy, and discloses a system for detecting the performance of a porous transmission layer under nanoscale material mechanics and displacement load change. Comprising a detection system, and the detection system is composed of a rotating hand wheel, a turbine transmission case, a fixed supporting piece, a top-layer displacement driving plate, a nanoscale displacement driving rod, a nanoscale displacement sensor, a measured part, a bottom part storage table, a precise stress sensor, a fixed guiding supporting positioning part, a bottom fixing piece and an analog output module. According to the device, a small-pitch thread driving rod structure is adopted, nanoscale displacement driving and loading are achieved, meanwhile, a turbine transmission structure and a micro-angle gear guide structure are adopted, and the performance of a porous medium transmission layer under a tool in the nanoscale material and micro nanoscale displacement loading process is tested; the invention provides a simple, low-cost and small-sized measuring system, and provides a detection means for testing the mechanical properties of nanoscale materials and the performance of the porous transmission layer under the variable displacement load.

Description

Technical Field

[0001] The present invention relates to the field of hydrogen energy technology, and specifically to a system and method for detecting nano-scale material mechanics and porous transmission layer performance under displacement and load variation. Background Art

[0002] Hydrogen energy, the chemical energy released by the chemical reaction of hydrogen and oxygen, is a secondary clean energy and is known as the "ultimate energy of the 21st century". Secondary energy is the intermediate link between primary energy and energy users. Secondary energy can be divided into "process energy" and "energy-containing body energy". Electricity is the most widely used "process energy" today; diesel and gasoline are the most widely used "energy-containing body energy". Hydrogen mainly appears in the form of chemical combination on the earth. It is the most widely distributed substance in the universe. It constitutes 75% of the mass of the universe and is a secondary energy. Hydrogen energy is likely to become an important energy on the world energy stage in the 21st century, and the production, storage, transportation and application technology of hydrogen will also become the focus of attention in the 21st century. Hydrogen has the characteristics of high combustion calorific value, which is 3 times that of gasoline, 3.9 times that of alcohol, and 4.5 times that of coke. The product of hydrogen combustion is water, which is the cleanest energy in the world. With abundant resources and sustainable development, hydrogen energy, as a clean and pollution-free secondary energy, is of great significance to the realization of my country's "dual carbon" goals. PEM water electrolysis hydrogen production technology uses electricity to decompose water into hydrogen and oxygen. The process does not involve any carbon emissions and is a clean way of energy conversion. At the same time, PEM water electrolysis hydrogen production technology has the advantages of high current density, high energy conversion efficiency, fast start and stop speed, fast dynamic response, fast reaction speed, and high product purity. It is an ideal technology for coupling with renewable energy to produce green hydrogen. Therefore, it has broad application prospects in energy storage, fuel cells and other fields.

[0003] As the core component of PEM water electrolysis hydrogen production technology, the proton exchange membrane electrolyzer (PEM) is mainly composed of a proton exchange membrane, anode and cathode catalyst layers, porous current collectors and bipolar plates. During the assembly of the electrolyzer, the performance of the proton exchange membrane and porous transport layer changes due to stress, which affects the performance of the electrolyzer. Therefore, how to accurately measure the mechanical properties of nano-scale materials (proton exchange membrane is in the range of 200-300 nanometers) and the properties of the porous transport layer in displacement and load-dependent porosity, pressure loss and other properties cannot be accurately detected, resulting in nano-scale materials being relatively limited in the detection of mechanical properties displacement and load-dependent and porous transport layer performance. Summary of the invention

[0004] 1. Technical issues to be resolved In view of the deficiencies in the prior art, the present invention provides a system and a method for detecting the mechanics of nano-scale materials and the performance of porous transmission layers under displacement and variable loads. A small-pitch threaded drive rod structure is adopted to realize nano-scale displacement drive and loading. At the same time, a turbine transmission structure and a small-angle gear guide structure are adopted to overcome the increased resistance caused by nano-scale displacement and variable loads. A nano-scale displacement sensor is used to realize the measurement of nano-scale variable load displacement process. A precise force sensor is used to record the force changes of the measured components as the nano-scale displacement drive rod moves. The precise force sensor and the nano-scale displacement sensor are used to obtain the parameters of the mechanical properties of nano-scale materials or the performance of the porous medium transmission layer. An analog output module is used to obtain the parameters of the nano-scale displacement sensor and the precise force sensor. The collected data of the force sensor can be used to calculate and output the mechanical properties of nano-scale films, molded thin materials, etc., or to detect the performance of porous medium transmission layers, thus realizing the test of the performance of porous medium transmission layers under nano-scale materials and micro-nano-scale displacement loading process tools. The system adopts nano-scale displacement sensors and precise force sensors to realize the precise measurement of nano-scale displacement and mechanics, and further obtains the tiny increments of displacement and force through the analog output module, and converts the mechanical properties of nano-scale materials. At the same time, the performance test of porous medium transmission layers under nano-scale precise displacement loads is realized, which provides detection means for the mechanical properties of nano-scale materials and the performance test of porous transmission layers under displacement load changes, and solves the problem of low accuracy in the detection of mechanical properties displacement load changes and porous transmission layer performance.

[0005] (II) Technical solution In order to solve the above technical problems, the present invention provides the following technical solutions: comprising a detection system, the detection system is composed of a rotating hand wheel, a turbine transmission box, a fixed support, a top displacement driving plate, a nano-level displacement driving rod, a nano-level displacement sensor, a measured component, a bottom component storage table, a precise force sensor, a fixed guide support positioning component, a bottom fixing component, and an analog output module; The fixed guide support positioning component includes a support column, the bottom end of the support column is fixedly connected to a positioning plate, a mechanical sensor positioning hole is provided inside the positioning plate, and the mechanical sensor positioning hole is embedded and connected with the bottom of the precision force sensor, a mechanical sensor communication groove is provided on the side surface of the positioning plate, an analog output module is embedded and connected inside the mechanical sensor communication groove, and a nanometer-scale displacement driving rod is provided on the upper surface of the top-level displacement driving plate.

[0006] Through the above technical scheme, nano-scale displacement sensors are used to realize the measurement of nano-scale variable load displacement process. With the movement of the nano-scale displacement driving rod, the precise force sensor is used to record the force change of the measured component. The precise force sensor and the nano-scale displacement sensor are used to obtain the mechanical properties of nano-scale materials or the performance of the porous medium transmission layer to provide parameters. The analog output module is used to obtain the collected data of the nano-scale displacement sensor and the precise force sensor, or calculate and output the mechanical properties of nano-scale films, molded thin materials, etc., or to detect the performance of the porous medium transmission layer. The test of the performance of the porous medium transmission layer under the tooling of the nano-scale material and the micro-nano-scale displacement loading process is realized, and a detection means is provided for the test of the mechanical properties of nano-scale materials and the performance of the porous transmission layer under displacement variable load. According to the data of the nano-scale displacement sensor and the precise force sensor collected by the analog output module, the mechanical properties of nano-scale materials or the performance of the porous medium transmission layer under displacement variable load are detected.

[0007] Preferably, the top of the measured component is directly loaded by a top displacement driving plate or an auxiliary tooling is added in the middle.

[0008] Through the above technical solution, the measured components are not limited to nano-scale thin film materials, nano-scale molded thin materials and porous medium transmission layer performance detection tooling. When the measured components are placed above the bottom component placement plate, the top displacement drive plate can be used to apply load to the measured components or add auxiliary tooling to detect the measured components.

[0009] Preferably, the nano-scale displacement driving rod is coupled via threads between fixed support members.

[0010] Through the above technical solution, nano-level displacement drive and nano-level displacement load increment are achieved by using a nano-level displacement drive rod with a small pitch thread, and the displacement precision loading is improved.

[0011] Preferably, the nano-scale displacement driving rod is installed inside the turbine transmission box, and the nano-scale displacement driving rod is connected to the rotating hand wheel by a micro-angle gear guide structure.

[0012] Through the above technical scheme, a turbine transmission structure and a small-angle gear guide structure are used to achieve vertical transmission, which not only overcomes the increased resistance caused by nano-level displacement and load change, but also realizes the nano-level displacement and load change process. At the same time, the nano-level displacement drive rod and the turbine transmission box are used, and the small-pitch thread drive rod structure is used to rotate the hand wheel, so that the nano-level displacement drive rod can drive the top-level displacement drive plate to move up and down to detect the measured components.

[0013] Preferably, the nanometer-scale displacement sensor is installed below the top displacement driving plate.

[0014] Through the above technical solution, the system is equipped with a nanoscale displacement sensor, which realizes the measurement of nanoscale variable load displacement process, provides parameters for obtaining the mechanical properties of nanoscale materials or the performance of porous medium transmission layers, and enables the nanoscale displacement sensor to measure the displacement process according to the movement of the top displacement driving plate.

[0015] Preferably, the nano-scale displacement sensor is transmitted to the analog output module via a top communication cable.

[0016] Through the above technical scheme, the measurement of nanoscale variable load displacement process can be realized by using nanoscale displacement sensors. The mechanical change amount caused by the force change of the precise force sensor can enable the nanoscale displacement sensor and the precise force sensor to transmit the detected signal to the analog output module through the communication cable in the mechanical sensor communication cable slot, so that the analog output module can collect the signals transmitted by the nanoscale displacement sensor and the precise force sensor.

[0017] Preferably, the analog output module can collect data from nano-scale displacement sensors and precise force sensors.

[0018] Through the above technical scheme, nano-scale displacement sensors are used to realize the measurement of nano-scale variable load displacement process. Precision force sensors are used to record the force changes of the measured components as the nano-scale displacement driving rod moves. Precision force sensors and nano-scale displacement sensors are used to obtain parameters for the mechanical properties of nano-scale materials or the performance of porous medium transmission layers. An analog output module is used to obtain the collected data of nano-scale displacement sensors and precision force sensors, or to calculate and output the mechanical properties of nano-scale films, molded thin materials, etc., or to detect the performance of porous medium transmission layers.

[0019] Preferably, the support column is provided with guide teeth away from the upper end, and the guide teeth are sleeved on the surface of the nano-displacement driving rod.

[0020] Through the above technical solution, due to the guide teeth and the side surface of the nano-displacement driving rod, when the nano-displacement driving rod drives the top displacement driving plate to move up and down, the guide teeth can be used to guide and limit the rotation of the nano-displacement driving rod.

[0021] Preferably, the measured component is placed on the upper surface of the bottom component storage platform, and the bottom of the bottom component storage platform is supported by a plurality of precise force sensors. Through the above technical scheme, a certain distance can be generated between the bottom component storage table and the top driving plate, and the measured component can be placed on the surface of the bottom component storage table for detection. Since a plurality of mechanical sensor positioning holes are provided inside the positioning plate, and since the diameter of the mechanical sensor positioning hole is larger than the precise force sensor, the precise force sensor can be embedded into the interior of the positioning plate. When the precise force sensor is not in use, the precise force sensor can be taken out of the mechanical sensor positioning hole for storage or replacement. When the precise force sensor is used to support the bottom component storage table, the top displacement driving plate can squeeze the measured component, and the precise force sensor can detect the squeezing force borne by the bottom component storage table.

[0022] Preferably, the mechanical sensor communication wire groove is communicated with the mechanical sensor positioning hole.

[0023] Through the above technical solution, since the diameter of the mechanical sensor communication wire groove is larger than the analog output module, the analog output module can be embedded in the side of the positioning plate, and the wires used by the analog output module can be placed in the mechanical sensor communication wire groove, which is convenient for the precise force sensor to transmit the signal to the analog output module to enter the detection data of the measured component.

[0024] The method for detecting nano-scale material mechanics and the performance of a porous transmission layer under displacement and load variation comprises the following steps: S1. Place the component to be measured on the top of the bottom component storage table, and turn the hand wheel to use the turbine transmission structure, the small angle gear guide structure and the transmission structure in the turbine transmission box to drive the nano-level displacement drive rod and the top displacement drive plate to move downward together, so as to perform extrusion detection on the measurement component placed on the bottom component storage table; S2. When the top displacement driving plate continuously moves downward, the precise force sensor records the force change of the measured component, thereby providing parameters for obtaining the mechanical properties of nano-level materials or the performance of porous medium transmission layers. At the same time, as the top displacement driving plate moves, the nano-level displacement sensor measures the nano-level variable load displacement process, thereby providing parameters for obtaining the mechanical properties of nano-level materials or the performance of porous medium transmission layers. S3. After the nano-scale displacement sensor and the precise force sensor have completed the measurement of the variable load displacement of the measured component and the detection of the force change of the measured component, the nano-scale displacement sensor and the precise force sensor can transmit the signal to the analog output module, and the analog output module is used to obtain the collected data of the nano-scale displacement sensor and the precise force sensor.

[0025] Compared with the prior art, the present invention provides a system and method for detecting nano-scale material mechanics and porous transmission layer performance under displacement and load variation, which has the following beneficial effects: 1. The present invention adopts a small pitch thread drive rod structure to realize nano-level displacement drive and loading. At the same time, a turbine transmission structure and a small angle gear guide structure are used to overcome the increased resistance caused by nano-level displacement and load change. The nano-level displacement sensor is used to realize the measurement of nano-level load and displacement process. The precise force sensor is used to record the force change of the measured component as the nano-level displacement drive rod moves. The precise force sensor and the nano-level displacement sensor are used to obtain the mechanical properties of nano-level materials or the performance of the porous medium transmission layer. The analog output module is used to obtain the parameters of the nano-level displacement sensor and the precise force sensor. The collected data can be used to calculate and output the mechanical properties of nano-scale films, molded thin materials, etc., or to detect the performance of porous medium transmission layers. This system realizes the test of the performance of porous medium transmission layers under nano-scale materials and micro-nano-scale displacement loading process tooling. The system adopts nano-scale displacement sensors and precise force sensors to realize the precise measurement of nano-scale displacement and mechanics. Further, through the analog output module, the tiny increments of displacement and force are obtained, and the mechanical properties of nano-scale materials are converted. At the same time, the performance test of porous medium transmission layers under nano-scale precise displacement loads is realized, which provides a detection means for the mechanical properties of nano-scale materials and the performance test of porous transmission layers under displacement variable loads. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the split structure of the present invention; Figure 2 It is a schematic diagram of the overall structure of the present invention; Figure 3 It is a schematic diagram of the local structure of the positioning plate of the present invention.

[0027] Among them: 1. Rotating hand wheel; 2. Turbine transmission box; 3. Fixed support; 4. Nano-level displacement drive rod; 5. Nano-level displacement sensor; 6. Measured component; 7. Bottom component storage table; 8. Precision force sensor; 9. Fixed guide support positioning component; 10. Bottom fixing part; 11. Analog output module; 12. Support column; 13. Mechanical sensor positioning hole; 14. Mechanical sensor communication cable groove; 15. Positioning plate; 16. Guide teeth; 17. Top displacement drive plate. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Embodiment 1: See also Figure 1-3, a system and a detection method for detecting the mechanics of nano-scale materials and the performance of porous transmission layers under displacement and variable loads, including a detection system, which adopts a nano-scale displacement sensor 5 and a precise force sensor 8 to achieve precise measurement of nano-scale displacement and mechanics, and further obtains micro increments of displacement and force through an analog output module, converts the mechanical properties of nano-scale materials, and realizes the performance test of porous medium transmission layers under nano-scale precise displacement loads. The detection system is composed of rotating a hand wheel 1, and the rotating hand wheel 1 can be used to couple the micron thread of a turbine transmission box 2 with a nano-scale displacement drive rod 4 so that the rotating hand wheel 1 can drive the nano-scale displacement sensor 5 and the top displacement drive plate 17 with the turbine transmission box 2 as a medium to extrude the measured component 6 to detect it. The measurement comprises a turbine transmission box 2, a fixed support 3, a top displacement driving plate 17, a nano-level displacement driving rod 4, a nano-level displacement sensor 5, and a fixed guide support positioning component 9 equipped with a nano-level displacement sensor 5, which realizes the measurement of the nano-level variable load displacement process and provides parameters for obtaining the mechanical properties of nano-level materials or the performance of the porous medium transmission layer. The measured component 6, the bottom component storage table 7, the precise force sensor 8, the fixed guide support positioning component 9, the bottom fixing component 10, and the analog output module 11. The fixed guide support positioning component 9 comprises a support column 12, and the support column 12 can be used to support the fixed support 3. The bottom end of the support column 12 is fixedly connected with a positioning plate 15. When the top displacement driving plate 17 is continuously moved, It can position the movement of the top displacement driving plate 17 embedded in the bottom fixing part 10, so as to facilitate the measurement of force changes and displacement processes, so as to obtain the mechanical properties of nano-level materials or the performance of porous medium transmission layers. The positioning plate 15 is provided with a mechanical sensor positioning hole 13, and the mechanical sensor positioning hole 13 is embedded with the bottom of the precise force sensor 8. Since the positioning plate 15 is provided with a plurality of mechanical sensor positioning holes 13, and the diameter of the mechanical sensor positioning hole 13 is larger than the precise force sensor 8, the precise force sensor 8 can be embedded in the positioning plate 15. When the precise force sensor 8 is not in use, the precise force sensor 8 can be removed from the mechanical sensor positioning hole 1 3 for storage or replacement, the fixed guide support positioning component 9 is equipped with a precise force sensor 8, with the movement of the nano-displacement driving rod 4, the precise force sensor 8 records the force change of the measured component 6, so as to provide parameters for obtaining the mechanical properties of nano-materials or the performance of the porous medium transmission layer, the side surface of the positioning plate 15 is provided with a mechanical sensor communication groove 14, because the diameter of the mechanical sensor communication groove 14 is larger than the analog output module 11, the analog output module 11 can be embedded into the side inner part of the positioning plate 15, and the wires used by the analog output module 11 can be placed in the mechanical sensor communication groove 14, so that the nano-displacement sensor 5 and the precise force sensor 8 can transmit signals to the analog output module 11,It can collect the information transmitted by the nano-level displacement sensor 5 and the precise force sensor 8. The internal of the mechanical sensor communication line slot 14 is connected with an analog output module 11. The nano-level displacement sensor 5 can be used to measure the nano-level variable load displacement process. The mechanical change amount of the precise force sensor 8 caused by the force change can be transmitted to the analog output module 11 through the communication cable in the mechanical sensor communication line slot 14, so that the analog output module 11 can collect the signals transmitted by the nano-level displacement sensor 5 and the precise force sensor 8. The upper surface of the top displacement driving plate 17 is provided with a nano-level displacement driving rod 4. Since the nano-level displacement driving rod 4 is connected to the rotating hand wheel 1 through the turbine transmission box 2, when the rotating hand wheel 1 rotates, the nano-level displacement driving rod 4 can drive the top displacement driving plate 17 to move up and down to detect the measured component 6.

[0030] The top of the measured component 6 is directly loaded by the top displacement driving plate 17 or an auxiliary tooling is added in the middle. When the measured component 6 is placed above the bottom component storage plate, the top displacement driving plate 17 can be used to apply load to the measured component 6 or add auxiliary tooling to detect the measured component 6. The nano-level displacement driving rod 4 is coupled through the micron-level thread between the fixed support members 3. The nano-level displacement driving rod 4 is connected to the inside of the turbine transmission box 2 with a pitch smaller than the micron-level thread to achieve a displacement nano-level load increment, thereby improving the displacement precision loading effect. The nano-level displacement driving rod 4 is installed in the turbine transmission box 2. The nano-level displacement driving rod 4 is connected to the rotating handwheel 1 with a small angle gear guide structure. The turbine transmission structure and the small angle gear guide structure realize vertical transmission, which not only overcomes the resistance increased by nano-level displacement load change, but also realizes the nano-level displacement load change process. At the same time, the nano-level displacement drive rod 4 and the turbine transmission box 2 are used, and the rotating hand wheel 1 adopts a pitch less than the micron-level thread drive rod structure, so that the nano-level displacement drive rod 4 can drive the top-level displacement drive plate 17 to move up and down to detect the measured component 6. The nano-level displacement sensor 5 is installed under the top-level displacement drive plate 17. With the nano-level displacement loading, the change in displacement is recorded and transmitted to the analog output module 11 through the top communication cable of the nano-level displacement sensor 5. The nano-level displacement sensor 5 is transmitted to the analog output module 11 through the top communication cable. The analog output The output module obtains the collected data of the nano-level displacement sensor 5 and the precise force sensor 8, or calculates and outputs the mechanical properties of nano-level films, molded thin materials, etc., or is used to detect the performance of the porous medium transmission layer. The analog output module 11 can collect the data of the nano-level displacement sensor 5 and the precise force sensor 8 for detection. The system adopts the nano-level displacement sensor 5 and the precise force sensor 8 to realize the precise measurement of nano-level displacement and mechanics. Further, through the analog output module, the micro increments of displacement and force are obtained, and the mechanical properties of the nano-level material are converted to obtain the mechanical properties of the nano-level material or the performance detection of the porous medium transmission layer under displacement variable load. At the same time, the performance test of the porous medium transmission layer under nano-level precise displacement load is realized. The support column 12 is away from the upper The end is provided with a guide tooth 16, and the guide tooth 16 is sleeved on the surface of the nano-displacement driving rod 4. Due to the guide tooth 16 and the side surface of the nano-displacement driving rod 4, when the nano-displacement driving rod 4 drives the top displacement driving plate 17 to move up and down, the guide tooth 16 can limit the moving nano-displacement driving rod 4. The measured component 6 is placed on the upper surface of the bottom component storage table 7. The measured component 6 is not limited to nano-thin film materials, nano-molded thin materials and porous medium transmission layer performance detection tooling. The measured component 6 is placed on the top of the bottom component storage table 7 for detection preparation. The bottom of the bottom component storage table 7 is supported by a plurality of precise force sensors 8. When the precise force sensors 8 are used to support the bottom component storage table 7,When the top displacement driving plate 17 can squeeze the measured component 6, the precise force sensor 8 can detect the squeezing force borne by the bottom component storage platform 7. The mechanical sensor communication line slot 14 is connected to the mechanical sensor positioning hole 13. The threaded drive rod structure with a pitch less than micron is adopted to realize nano-level displacement drive and loading. At the same time, the turbine transmission structure and the small angle gear guide structure are adopted to overcome the increased resistance caused by nano-level displacement and load variation, and realize the test of the performance of the porous medium transmission layer under the process of nano-level material and micro-nano-level displacement loading. It provides a simple, low-cost, and small measurement system, and provides a detection means for the mechanical properties of nano-level materials and the performance of porous transmission layers under displacement and load variation.

[0031] Embodiment 2: The method for detecting nano-scale material mechanics and the performance of a porous transmission layer under displacement and load variation comprises the following steps: S1, place the measured component 6 above the bottom component storage table 7, turn the hand wheel 1 so that it can use the turbine transmission structure and the small angle gear guide structure and the transmission structure in the turbine transmission box 2 to drive the nano-level displacement driving rod 4 and the top displacement driving plate 17 to move downward together, so as to perform extrusion detection on the measured component placed above the bottom component storage table 7; S2. When the top displacement driving plate 17 continuously moves downward, the precise force sensor 8 records the force change of the measured component 6, thereby providing parameters for obtaining the mechanical properties of nano-scale materials or the performance of the porous medium transmission layer. At the same time, as the top displacement driving plate 17 moves, the nano-scale displacement sensor 5 measures the nano-scale variable load displacement process, thereby providing parameters for obtaining the mechanical properties of nano-scale materials or the performance of the porous medium transmission layer. S3. When the nano-scale displacement sensor 5 and the precise force sensor 8 have completed the measurement of the variable load displacement of the measured component 6 and the detection of the force change of the measured component 6, the nano-scale displacement sensor 5 and the precise force sensor 8 can transmit the signal to the analog output module 11, and the analog output module 11 is used to obtain the collected data of the nano-scale displacement sensor 5 and the precise force sensor 8.

[0032] When in use, the measured component 6 is placed above the bottom component storage table 7, and the device is not limited to testing the performance of nano-scale film materials, nano-scale molded thin materials and porous medium transmission layers. After the measured component 6 is placed, the hand wheel 1 is turned to make it use the turbine transmission structure and the small angle gear guide structure, so that when the hand wheel 1 is turned, the transmission structure in the turbine transmission box 2 can drive the nano-scale displacement drive rod 4 and the top displacement drive plate 17 to move downward together. When the top displacement drive plate 17 moves downward, the measurement component placed above the bottom component storage table 7 can be squeezed. Detection, when the top displacement driving plate 17 is continuously moved downward, the precise force sensor 8 records the force change of the measured component 6, thereby providing parameters for obtaining the mechanical properties of nano-scale materials or the performance of the porous medium transmission layer. At the same time, as the top displacement driving plate 17 moves, the nano-scale displacement sensor 5 measures the nano-scale variable load displacement process, thereby providing parameters for obtaining the mechanical properties of nano-scale materials or the performance of the porous medium transmission layer. When the nano-scale displacement sensor 5 and the precise force sensor 8 have completed the measurement of the variable load displacement of the measured component 6 and the force change detection of the measured component 6, the nano-scale The displacement sensor 5 and the precise force sensor 8 can transmit signals to the analog output module 11. The analog output module 11 is used to obtain the collected data of the nano-level displacement sensor 5 and the precise force sensor 8, or calculate and output the mechanical properties of nano-level films, molded thin materials, etc., or to detect the performance of porous medium transmission layers. The device can realize the test of the performance of porous medium transmission layers under nano-level materials and micro-nano-level displacement loading process tooling. The device realizes the precise test of the mechanical properties of nano-level materials and the performance of porous medium transmission layers under displacement variable loads, and realizes nano-level displacement drive by using a pitch smaller than a micron-level thread. The dynamic and nano-level displacement load increment adopts a turbine transmission structure and a small-angle gear guide structure to overcome the increased resistance caused by nano-level displacement load change and realize the nano-level displacement load change process, thereby completing the detection of the measured component 6. Since a plurality of mechanical sensor positioning holes 13 are provided inside the positioning plate 15, and since the diameter of the mechanical sensor positioning hole 13 is larger than the precise force sensor 8, the precise force sensor 8 can be embedded into the interior of the positioning plate 15. When the precise force sensor 8 is not in use, the precise force sensor 8 can be taken out of the mechanical sensor positioning hole 13 for storage or replacement.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A system for detecting nano-scale material mechanics and the performance of porous transmission layers under displacement and load, including a detection system, characterized in that: The detection system comprises a rotating hand wheel (1), a turbine transmission box (2), a fixed support member (3), a top displacement driving plate (17), a nano-level displacement driving rod (4), a nano-level displacement sensor (5), a measured component (6), a bottom component storage table (7), a precise force sensor (8), a fixed guide support positioning component (9), a bottom fixing member (10), and an analog output module (11); The fixed guide support positioning component (9) comprises a support column (12), the bottom end of the support column (12) is fixedly connected to a positioning plate (15), a mechanical sensor positioning hole (13) is provided inside the positioning plate (15), and the mechanical sensor positioning hole (13) is engaged with the bottom of the precision force sensor (8), a mechanical sensor communication line groove (14) is provided on the side surface of the positioning plate (15), an analog output module (11) is engaged inside the mechanical sensor communication line groove (14), and a nanometer displacement driving rod (4) is provided on the upper surface of the top displacement driving plate (17).

2. The system for detecting nano-scale material mechanics and porous transmission layer performance under displacement and load according to claim 1, characterized in that: The top of the measured component (6) is directly loaded by a top displacement driving plate (17) or an auxiliary tool is added in the middle.

3. The system for detecting nano-scale material mechanics and porous transmission layer performance under displacement and load according to claim 1, characterized in that: The nano-scale displacement driving rod (4) is coupled via threads between the fixed support members (3).

4. The system for detecting nano-scale material mechanics and porous transmission layer performance under displacement and load according to claim 1, characterized in that: The nanometer-scale displacement driving rod (4) is installed inside the turbine transmission box (2), and the nanometer-scale displacement driving rod (4) is connected to the rotating hand wheel (1) by using a micro-angle gear guide structure.

5. The system for detecting nano-scale material mechanics and porous transmission layer performance under displacement and load according to claim 1, characterized in that: The nanometer-scale displacement sensor (5) is installed below the top displacement driving plate (17).

6. The system for detecting nano-scale material mechanics and porous transmission layer performance under displacement and load according to claim 1, characterized in that: The nanometer-scale displacement sensor (5) is transmitted to the analog output module (11) via the top communication cable.

7. The system for detecting nano-scale material mechanics and porous transmission layer performance under displacement and load according to claim 1, characterized in that: The analog output module (11) can collect data detection of the nano-scale displacement sensor (5) and the precise force sensor (8).

8. The system for detecting nano-scale material mechanics and porous transmission layer performance under displacement and load according to claim 1, characterized in that: The support column (12) is provided with a guide tooth (16) away from the upper end, and the guide tooth (16) is sleeved on the surface of the nano-scale displacement driving rod (4).

9. The system for detecting nano-scale material mechanics and porous transmission layer performance under displacement and load according to claim 1, characterized in that: The measured component (6) is placed on the upper surface of a bottom component storage platform (7); the bottom of the bottom component storage platform (7) is supported by a plurality of precise force sensors (8); and the mechanical sensor communication wire slot (14) is in communication with the mechanical sensor positioning hole (13).

10. The method for detecting nano-scale material mechanics and porous transmission layer performance under displacement and load according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, placing the component to be measured (6) above the bottom component storage table (7), turning the hand wheel (1) so that the nanometer displacement driving rod (4) and the top displacement driving plate (17) can be driven to move downward together by utilizing the turbine transmission structure and the micro-angle gear guide structure and the transmission structure in the turbine transmission box (2), so as to perform extrusion detection on the measurement component placed above the bottom component storage table (7); S2. When the top displacement driving plate (17) continuously moves downward, the precise force sensor (8) records the force change of the measured component (6), thereby providing parameters for obtaining the mechanical properties of nano-scale materials or the performance of the porous medium transmission layer. At the same time, as the top displacement driving plate (17) moves, the nano-scale displacement sensor (5) measures the nano-scale variable load displacement process, thereby providing parameters for obtaining the mechanical properties of nano-scale materials or the performance of the porous medium transmission layer. S3. After the nano-scale displacement sensor (5) and the precise force sensor (8) have completed the measurement of the load-dependent displacement of the measured component (6) and the detection of the force change of the measured component (6), the nano-scale displacement sensor (5) and the precise force sensor (8) can transmit signals to the analog output module (11). The analog output module (11) is used to obtain the collected data of the nano-scale displacement sensor (5) and the precise force sensor (8).

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