A multifunctional performance testing equipment for friction nanogenerators

Abstract

The present invention provides a multifunctional performance testing equipment for a friction nanogenerator, comprising a test bench and a rotation mode test component, a contact separation mode test component, a reciprocating sliding mode test component, and a rotation drive component arranged on the test bench, wherein the rotation mode test component, the contact separation mode test component, and the reciprocating sliding mode test component are all driven by the same rotation drive component; under the rotation output of the same rotation drive component, the present invention can simultaneously realize the electrical performance test of the rotation mode friction nanogenerator, the contact separation mode friction nanogenerator, and the reciprocating sliding mode friction nanogenerator, and can simultaneously realize the friction coefficient test of the reciprocating sliding mode friction nanogenerator, thereby improving the test efficiency, reducing the test cost, ensuring the reliability and accuracy of the test, and further improving the convenience of operation.

Description

Technical Field

[0001] The present invention relates to the technical field of friction nanogenerators, and in particular to a multifunctional performance testing device applied to friction nanogenerators. Background Art

[0002] The booming development of the Internet of Things industry has brought about earth-shaking changes to the world, but its low-cost and pollution-free power supply problem is an urgent problem to be solved. Triboelectric Nanogenerator (TENG) is an emerging energy harvesting and self-driven sensing technology. It is based on the triboelectric effect and can convert tiny irregular mechanical energy into electrical energy or electrical signals. These triboelectric nanogenerators have attracted much attention due to their small size, light weight, and integration on various surfaces. The tribological and triboelectric properties of the materials of the triboelectric nanogenerator are crucial to this technology. Traditional triboelectric nanogenerators can often only realize one mode of triboelectric testing, and cannot realize the simultaneous testing of triboelectric and triboelectric properties. Therefore, there is an urgent need for a device that can simultaneously realize the triboelectric and tribological performance tests of the triboelectric nanogenerator, thereby improving the test efficiency and saving test space and test bench space.

[0003] It should be noted that the several working modes of the friction nanogenerator involved in this application include: contact-separation mode; reciprocating sliding mode (including horizontal sliding mode (lateral-sliding mode) and independent layer mode (freestanding triboelectric-layer mode)); rotation mode. Summary of the invention

[0004] The purpose of the present invention is to provide a solution for testing the triboelectric performance and tribological performance of a friction nanogenerator simultaneously in view of the deficiencies in the above-mentioned background technology.

[0005] In order to achieve the above-mentioned object, the present invention provides a multifunctional performance testing equipment applied to a friction nanogenerator, comprising a test bench and a rotation mode test component, a contact separation mode test component, a reciprocating sliding mode test component, and a rotation drive component arranged on the test bench, wherein the rotation mode test component, the contact separation mode test component, and the reciprocating sliding mode test component are all driven by the same rotation drive component;

[0006] The rotation mode test assembly comprises a disc, a first pressure sensor, a transmission shaft and a torque sensor; the disc is connected to the first end of the transmission shaft, the second end of the transmission shaft is connected to the rotation drive assembly, the first pressure sensor is arranged opposite to the disc, the first pressure sensor and the disc are both attached with materials of the rotation mode friction nanogenerator, and the torque sensor is connected to the transmission shaft;

[0007] The contact-separation mode test assembly includes a collision plate head, a second pressure sensor, a slide table, a sliding mechanism and a transmission mechanism; the second pressure sensor and the collision surface of the collision plate head are both attached with materials of the contact-separation mode friction nanogenerator, the collision plate head is connected to the slide table through a collision plate seat, the slide table is connected to the sliding mechanism, the second pressure sensor is used to detect the impact force when the material of the contact-separation mode friction nanogenerator collides, the sliding mechanism is connected to the transmission mechanism, and the transmission mechanism is connected to the transmission shaft;

[0008] The reciprocating sliding mode test assembly includes a sample attachment block, a component force sensor, a balancing shaft and a connecting platform; the sample attachment block is connected to the component force sensor, the component force sensor is connected to the first end of the balancing shaft, the balancing shaft is connected to the connecting platform, the first end of the balancing shaft is used to apply a load, and the upper surface of the collision plate seat and the lower surface of the sample attachment block are both attached with materials of a reciprocating sliding mode friction nanogenerator.

[0009] Furthermore, a first support seat is provided at multiple positions of the transmission shaft, the bearing on the first support seat is connected to the transmission shaft, the first pressure sensor is installed on the first connecting seat, and the first support seat and the first connecting seat are both connected to the test bench.

[0010] Furthermore, the transmission shaft is broken into two sections at the position of the torque sensor, and both ends of the torque sensor are connected to the position where the transmission shaft is broken through a coupling.

[0011] Furthermore, the sliding mechanism includes a slide rail slidably connected to the slide table, and a synchronous belt connected to the slide table, both ends of the slide rail are provided with a pulley connecting seat, a pulley is provided in the pulley connecting seat, and the synchronous belt is wound between the two pulleys, and one of the pulley connecting seats is connected to the transmission mechanism.

[0012] Furthermore, the second pressure sensor is arranged on a straight line where the slide rail is located and is located at an end of the slide rail. The second pressure sensor and the slide rail are connected to the test bench via a second connecting seat.

[0013] Furthermore, the transmission mechanism includes a driving gear, a driven gear, a gear belt and a right-angle reducer, the driving gear is connected to the transmission shaft, the driven gear is connected to the input end of the right-angle reducer, the gear belt is arranged between the driving gear and the driven gear, and the output end of the right-angle reducer is connected to one of the pulley connecting seats through a coupling.

[0014] Furthermore, the reciprocating sliding mode test assembly also includes a first connector, a second connector, a third connector, a balancing block, a connecting shaft and a second supporting seat, the sample attachment block is connected to the component force sensor through the first connector, the component force sensor is connected to the first end of the balancing shaft through the second connector, the second connector is provided with a load applying portion for applying a load, the third connector is connected to the balancing shaft, the second end of the balancing shaft is connected to the balancing block and can adjust the position, the second supporting seat is arranged in pairs and connected to the connecting platform, the bearing on the second supporting seat is connected to the connecting shaft, and the connecting shaft is also connected to the third connector.

[0015] Further, the third connector is provided with a level meter, and the level meter is used to detect the levelness of the third connector, so that the load applied by the load applying part is equal to the pressure between the sample attachment block and the collision plate seat.

[0016] Furthermore, the force component sensor can detect pressure and friction simultaneously.

[0017] Furthermore, the connecting platform is connected to the test platform via a threaded rod, the top of the threaded rod passes through the connecting hole of the connecting platform, and nuts that are inserted into the threaded rod are provided on the upper and lower surfaces of the connecting platform, and the nuts are used to fine-tune the height position of the connecting platform.

[0018] The above scheme of the present invention has the following beneficial effects:

[0019] The multifunctional performance testing equipment for friction nanogenerators provided by the present invention can simultaneously realize the electrical performance tests of the rotation mode friction nanogenerator, the contact separation mode friction nanogenerator, and the reciprocating sliding mode friction nanogenerator through the setting and association of the rotation mode test component, the contact separation mode test component, and the reciprocating sliding mode test component, and can also realize the friction coefficient test of the reciprocating sliding mode friction nanogenerator, thereby improving the test efficiency and reducing the test cost. The reliability and accuracy of the test can be guaranteed based on the setting of the structure, the arrangement of each sensor, the accuracy of the servo motor, etc., and the convenience of operation is further improved compared with the manual adjustment method.

[0020] Other beneficial effects of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of a rotation mode test assembly of the present invention;

[0023] Figure 3 It is a schematic diagram of a contact-separation mode test assembly of the present invention;

[0024] Figure 4 It is a schematic diagram of the reciprocating sliding mode test assembly of the present invention.

[0025] [Description of Reference Numerals]

[0026] 10-test bench; 20-rotation mode test assembly; 21-disc; 22-first pressure sensor; 23-transmission shaft; 24-torque sensor; 25-first support seat; 26-first connecting seat; 30-contact and separation mode test assembly; 31-impact plate head; 32-second pressure sensor; 33-slide table; 34-slide rail; 35-pulley connecting seat; 36-impact plate seat; 37-second connecting seat; 38-driving gear; 39-driven gear; 310-gear belt; 311-right angle reducer; 40-reciprocating sliding mode test assembly; 41-sample attachment block; 42-first connector; 43-force sensor; 44-second connector; 45-balance shaft; 46-connecting table; 47-third connector; 48-balance block; 49-connecting shaft; 410-second support base; 411-level; 412-threaded rod; 50-rotation drive assembly; 51-servo motor; 52-motor base. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will be described in detail with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0028] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a locking connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] like Figure 1 As shown, an embodiment of the present invention provides a multifunctional performance testing equipment for a triboelectric nanogenerator, including a test bench 10 and a rotation mode test assembly 20, a contact separation mode test assembly 30, and a reciprocating sliding mode test assembly 40 arranged on the test bench 10. The rotation mode test assembly 20, the contact separation mode test assembly 30, and the reciprocating sliding mode test assembly 40 are all driven by the same rotation drive assembly 50 to simultaneously perform the rotation mode test, the contact separation mode test, and the reciprocating sliding mode test.

[0031] At the same time Figure 2 As shown, the rotation mode test assembly 20 includes a disc 21, a first pressure sensor 22, a transmission shaft 23, and a torque sensor 24. The disc 21 is connected to the first end of the transmission shaft 23 by bolts, and the second end of the transmission shaft 23 is connected to the rotation drive assembly 50, so as to drive the transmission shaft 23 and the disc 21 to rotate through the rotation drive assembly 50. The first pressure sensor 22 is arranged opposite to the disc 21, and the materials of the rotation mode friction nanogenerator are attached to the first pressure sensor 22 and the disc 21. The disc 21 reciprocates relative to the first pressure sensor 22 to test the rotation mode friction nanogenerator, and the pressure value can be obtained from the first pressure sensor 22. At the same time, the torque sensor 24 is connected to the transmission shaft 23, and the torque value is read by the torque sensor 24, and the electrical performance of the rotation mode friction nanogenerator is tested based on the pressure value and the torque value.

[0032] Since the span of the transmission shaft 23 is relatively large, in order to ensure the smoothness of transmission, in this embodiment, a first support seat 25 is provided at multiple positions of the transmission shaft 23, and the transmission shaft 23 is supported by the bearings on the first support seat 25 for rotation. In addition, the first pressure sensor 22 is installed on the first connecting seat 26 to form a relative distribution with the disc 21 to ensure that the rotation mode friction nanogenerator can be tested. Among them, the bottoms of the first support seat 25 and the first connecting seat 26 are fixedly connected to the test bench 10, and the first connecting seat 26 can adjust the installation position, so that the pressure of the first pressure sensor 22 and the disc 21 can be adjusted to a suitable level.

[0033] It should be noted that in this embodiment, the transmission shaft 23 is broken into two sections at the position of the torque sensor 24, and both ends of the torque sensor 24 are connected to the broken position of the transmission shaft 23 through a coupling, so that the torque sensor 24 can accurately measure the torque while ensuring the transmission effect.

[0034] At the same time Figure 3 As shown, the contact-separation mode test assembly 30 includes a collision plate head 31, a second pressure sensor 32, a slide 33, a sliding mechanism and a transmission mechanism. Among them, the collision surfaces of the second pressure sensor 32 and the collision plate head 31 are both attached with materials of the contact-separation mode friction nanogenerator, the collision plate head 31 is connected to the slide 33, and the slide 33 is connected to the sliding mechanism, so that the collision surface of the collision plate head 31 moves and collides with the second pressure sensor 32 through the drive of the sliding mechanism, so that the collision surface of the collision plate head 31 moves toward and collides with the second pressure sensor 32, so that the material of the contact-separation mode friction nanogenerator collides to achieve the purpose of testing. Among them, the second pressure sensor 32 is used to detect the impact force when the material of the contact-separation mode friction nanogenerator collides.

[0035] In a specific implementation of this embodiment, the sliding mechanism includes a slide rail 34 for supporting and guiding the slide 33, and a synchronous belt connected to the slide 33. The slide 33 is slidably connected to the slide rail 34, and both ends of the slide rail 34 are provided with a pulley connection seat 35, and a pulley is provided in the pulley connection seat 35, and the synchronous belt is wound between the two pulleys. One of the pulley connection seats 35 is connected to the transmission mechanism to drive the (active) pulley to rotate through the transmission mechanism. Of course, in other specific implementations, the sliding mechanism itself can also use other methods to drive the slide 33 to move, such as by screw driving.

[0036] It should be noted that, since the slide 33 moves along the slide rail 34, in order to make the collision between the collision plate head 31 and the second pressure sensor 32 more stable as a whole and reduce the shaking of the collision plate head 31 itself, in this embodiment, the second pressure sensor 32 is arranged on the straight line where the slide rail 34 is located and is located at one end of the slide rail 34, and the collision plate head 31 is connected to the slide 33 through the collision plate seat 36 and fixed by bolts, so that after the slide 33 moves to the preset position of the slide rail 34, the collision plate head 31 contacts and collides with the second pressure sensor 32. Among them, the second pressure sensor 32 is connected to the test bench 10 through the second connecting seat 37.

[0037] In a specific implementation of the present embodiment, the transmission mechanism includes a driving gear 38, a driven gear 39, a gear belt 310 and a right-angle reducer 311. Among them, the driving gear 38 is connected to the transmission shaft 23 to rotate synchronously with the transmission shaft 23. The driven gear 39 is connected to the input end of the right-angle reducer 311, and the gear belt 310 is arranged between the driving gear 38 and the driven gear 39 to transmit the torque of the transmission shaft 23 to the right-angle reducer 311. The function of the right-angle reducer 311 is to transmit and reduce the torque, and at the same time, it can achieve a 90-degree change in the transmission direction. The output end of the right-angle reducer 311 is connected to the pulley connection seat 35 through a coupling, so as to drive the pulley to rotate and drive the synchronous belt to convey, thereby driving the slide 33 and the collision plate head 31 to move along the slide rail 34. Of course, in other specific implementations, the driving gear 38, the driven gear 39, and the gear belt 310 can also be replaced by a sprocket transmission form, and the right-angle reducer 311 can also be replaced by other forms.

[0038] At the same time Figure 4 As shown, the reciprocating sliding mode test assembly 40 includes a sample attachment block 41, a first connector 42, a force sensor 43, a second connector 44 and a balance shaft 45. The sample attachment block 41 is connected to the force sensor 43 through the first connector 42, the force sensor 43 is connected to the first end of the balance shaft 45 through the second connector 44, and the second connector 44 is provided with a load applying portion for applying a load. At the same time, the reciprocating sliding mode test assembly 40 also includes a connecting platform 46, a third connector 47, a balance block 48, a connecting shaft 49 and a second support seat 410. The third connector 47 is connected to non-two end positions of the balance shaft 45, and the second end of the balance shaft 45 is connected to the balance block 48. A pair of second support seats 410 are provided and connected to the connecting platform 46, and the two ends of the connecting shaft 49 are respectively connected to the corresponding second support seats 410, and the connecting shaft 49 is rotatably supported by bearings so that the connecting shaft 49 can rotate freely. At the same time, the connecting shaft 49 is also connected to the third connector 47 , so the third connector 47 can rotate relative to the axis where the connecting shaft 49 is located, so that the two ends of the balancing shaft 45 can be adjusted to (force) balance.

[0039] Among them, a spirit level 411 is set on the upper surface of the third connector 47, and the spirit level 411 is used to detect the horizontality of the third connector 47. After all the components at the first end of the balancing shaft 45 are installed in place, the third connector 47 is balanced and reaches a horizontal state by adjusting the position of the balancing block 48 at the second end of the balancing shaft 45, thereby ensuring that the load applied by the load applying part is equal to the pressure between the sample attachment block 41 and the collision plate seat 36.

[0040] Among them, the upper surface of the collision plate seat 36 and the lower surface of the sample attachment block 41 are both attached with materials of the reciprocating sliding mode friction nanogenerator. During the reciprocating movement of the collision plate seat 36 to perform the contact-separation mode friction nanogenerator test, the upper surface of the collision plate seat 36 reciprocates relative to the lower surface of the sample attachment block 41, and the reciprocating sliding mode friction nanogenerator is tested synchronously.

[0041] At the same time, during the test, the force sensor 43 can detect the pressure and friction between the sample attachment block 41 and the collision plate seat 36, so as to measure the friction coefficient of the contact-separation mode friction nanogenerator. It should be noted that, considering that the lower surface of the sample attachment block 41 needs to contact the upper surface of the collision plate seat 36 during the reciprocating movement of the collision plate seat 36, a certain contact pressure is required to measure the friction coefficient. Therefore, the load application part is used to ensure that the pressure between the lower surface of the sample attachment block 41 and the upper surface of the collision plate seat 36 reaches a preset value. In addition, it is also necessary to accurately set the height position of the sample attachment block 41 so that the lower surface of the sample attachment block 41 can just contact the upper surface of the collision plate seat 36, and maintain a certain pressure when the first end of the balance shaft 45 is horizontal, so as to achieve the purpose of electrical testing and friction coefficient measurement of the contact-separation mode friction nanogenerator.

[0042] In a specific implementation of this embodiment, the load applying part is a cylinder disposed on the upper surface of the second connector 44. A weight is placed on the upper surface of the second connector 44 by the cylinder to accurately control the positive pressure applied to achieve the purpose of testing. The pressure value can be directly calculated by the weight, or can be read and confirmed by the force sensor 43. Of course, in other specific implementations, loading can also be performed by a loading mechanism, etc.

[0043] In a specific implementation of this embodiment, the second end of the balancing shaft 45 is provided with an external thread, and the balancing block 48 is provided with a threaded hole. The forces at both ends of the third connector 47 are balanced by adjusting the fixed position of the balancing block 48 relative to the balancing shaft 45 .

[0044] In a specific implementation of this embodiment, the connecting platform 46 is connected to the test platform 10 through a threaded rod 412. The top of the threaded rod 412 passes through the connecting hole of the connecting platform 46, and nuts are provided on the upper and lower surfaces of the connecting platform 46. When the height position of the connecting platform 46 needs to be fine-tuned, it is only necessary to screw the nuts so that the lower surface of the sample attachment block 41 is adjusted to just contact the upper surface of the collision plate seat 36.

[0045] As described above, the multifunctional performance testing equipment for friction nanogenerators provided in this embodiment can simultaneously realize the electrical performance test of the friction nanogenerator in the rotation mode, the friction nanogenerator in the contact-separation mode, and the friction nanogenerator in the reciprocating sliding mode through the rotation output of the rotation drive component 50, and can also realize the friction coefficient test of the friction nanogenerator in the reciprocating sliding mode. As an optional implementation of this embodiment, the rotation drive component 50 includes a servo motor 51, which is arranged on the test bench 10 through a motor seat 52, and the output shaft of the servo motor 51 is connected to the transmission shaft 23 through a coupling. The servo motor 51 can cycle forward and reverse under the switching of the electrical signal, so as to achieve the purpose of testing the above three types of friction nanogenerators. Among them, the servo motor 51 adopts a high-precision light-inertia servo motor 51, which can realize high-precision reciprocating motion control.

[0046] As a further improvement, a control system (platform) is also provided in this embodiment, and the control system is electrically connected to the servo motor 51. The control system can set and operate parameters through the APP, and then control the servo motor 51 to perform corresponding output. Therefore, the tester sets the rotation mode, reciprocating rotation frequency, and each rotation angle of the servo motor 51 on the APP in advance, so that the servo motor 51 outputs a specific rotational motion, and accurately tests the above three types of friction nanogenerators.

[0047] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0048] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A multifunctional performance testing equipment for a triboelectric nanogenerator, characterized in that: It comprises a test bench and a rotation mode test component, a contact and separation mode test component, a reciprocating sliding mode test component and a rotation drive component arranged on the test bench, wherein the rotation mode test component, the contact and separation mode test component and the reciprocating sliding mode test component are all driven by the same rotation drive component; The rotation mode test assembly comprises a disc, a first pressure sensor, a transmission shaft and a torque sensor; the disc is connected to the first end of the transmission shaft, the second end of the transmission shaft is connected to the rotation drive assembly, the first pressure sensor is arranged opposite to the disc, the first pressure sensor and the disc are both attached with materials of the rotation mode friction nanogenerator, and the torque sensor is connected to the transmission shaft; The contact-separation mode test assembly includes a collision plate head, a second pressure sensor, a slide table, a sliding mechanism and a transmission mechanism; the second pressure sensor and the collision surface of the collision plate head are both attached with materials of the contact-separation mode friction nanogenerator, the collision plate head is connected to the slide table through a collision plate seat, the slide table is connected to the sliding mechanism, the second pressure sensor is used to detect the impact force when the material of the contact-separation mode friction nanogenerator collides, the sliding mechanism is connected to the transmission mechanism, and the transmission mechanism is connected to the transmission shaft; The reciprocating sliding mode test assembly includes a sample attachment block, a component force sensor, a balancing shaft and a connecting platform; the sample attachment block is connected to the component force sensor, the component force sensor is connected to the first end of the balancing shaft, the balancing shaft is connected to the connecting platform, the first end of the balancing shaft is used to apply a load, and the upper surface of the collision plate seat and the lower surface of the sample attachment block are both attached with materials of a reciprocating sliding mode friction nanogenerator.

2. The multifunctional performance testing equipment for triboelectric nanogenerator according to claim 1, characterized in that: A first support seat is provided at multiple positions of the transmission shaft, the bearing on the first support seat is connected to the transmission shaft, the first pressure sensor is installed on the first connecting seat, and the first support seat and the first connecting seat are both connected to the test bench.

3. The multifunctional performance testing equipment for triboelectric nanogenerator according to claim 1, characterized in that: The transmission shaft is broken into two sections at the position of the torque sensor, and both ends of the torque sensor are connected to the position where the transmission shaft is broken through a coupling.

4. The multifunctional performance testing equipment for triboelectric nanogenerator according to claim 1, characterized in that: The sliding mechanism includes a slide rail slidably connected to the slide table, and a synchronous belt connected to the slide table, both ends of the slide rail are provided with a pulley connecting seat, a pulley is provided in the pulley connecting seat, and the synchronous belt is wound between the two pulleys, and one of the pulley connecting seats is connected to the transmission mechanism.

5. The multifunctional performance testing equipment for triboelectric nanogenerator according to claim 4, characterized in that: The second pressure sensor is arranged on a straight line where the slide rail is located and is located at an end of the slide rail. The second pressure sensor and the slide rail are both connected to the test bench via a second connecting seat.

6. The multifunctional performance testing equipment for triboelectric nanogenerator according to claim 4, characterized in that: The transmission mechanism includes a driving gear, a driven gear, a gear belt and a right-angle reducer, the driving gear is connected to the transmission shaft, the driven gear is connected to the input end of the right-angle reducer, the gear belt is arranged between the driving gear and the driven gear, and the output end of the right-angle reducer is connected to one of the pulley connecting seats through a coupling.

7. The multifunctional performance testing equipment for triboelectric nanogenerator according to claim 1, characterized in that: The reciprocating sliding mode test assembly also includes a first connector, a second connector, a third connector, a balancing block, a connecting shaft and a second supporting seat. The sample attachment block is connected to the component force sensor through the first connector, and the component force sensor is connected to the first end of the balancing shaft through the second connector. The second connector is provided with a load applying portion for applying a load. The third connector is connected to the balancing shaft. The second end of the balancing shaft is connected to the balancing block and can adjust its position. The second supporting seat is arranged in pairs and connected to the connecting platform. The bearing on the second supporting seat is connected to the connecting shaft, and the connecting shaft is also connected to the third connector.

8. The multifunctional performance testing equipment for triboelectric nanogenerator according to claim 7, characterized in that: The third connector is provided with a level meter, and the level meter is used to detect the levelness of the third connector so that the load applied by the load applying part is equal to the pressure between the sample attachment block and the collision plate seat.

9. The multifunctional performance testing equipment for triboelectric nanogenerator according to claim 1, characterized in that: The force sensor can detect pressure and friction simultaneously.

10. The multifunctional performance testing equipment for triboelectric nanogenerator according to claim 1, characterized in that: The connecting platform is connected to the test platform via a threaded rod, the top of the threaded rod passes through the connecting hole of the connecting platform, and nuts that are inserted into the threaded rod are provided on the upper and lower surfaces of the connecting platform, and the nuts are used to fine-tune the height position of the connecting platform.

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