A self-driven intelligent monitoring integrated carrier roller of a belt conveyor and a monitoring method

Abstract

This invention provides a self-driven intelligent monitoring integrated idler roller and monitoring method for belt conveyors, belonging to the field of belt conveyor manufacturing technology. It solves the technical problem that existing intelligent idler roller self-powered methods often require the installation of numerous components inside the idler roller, making the modification process cumbersome. The technical solution includes an idler roller shell and an idler roller shaft, which are mounted together by bearings located inside the idler roller shell. The bearings include an outer ring, an inner ring, a cage, and steel balls. The idler roller shaft passes through the inner ring, and copper foil electrodes one and two are respectively arranged on the inner wall of the inner ring. The monitoring method includes the following steps: S1: generating charge; S2: starting monitoring; S3: signal conversion; S4: transmitting to a host computer. The beneficial effects of this invention are: by encapsulating a self-powered sensor inside the idler roller, this invention can effectively utilize the rotational motion of the idler roller to collect the required energy and achieve the monitoring function.

Description

Technical Field

[0001] This invention relates to the field of belt conveyor manufacturing technology, and in particular to a self-driven intelligent monitoring integrated idler roller and monitoring method for belt conveyors. Background Technology

[0002] Belt conveyors are widely used in industrial production and are key equipment for conveying bulk materials. Idler rollers, as an important component, are numerous and widely distributed. Due to harsh operating environments, idlers are constantly under high loads and high friction, making them prone to wear and failure, which seriously affects the reliability and safety of the equipment. Currently, inspection still mainly relies on manual patrols, making it difficult to detect idler roller faults in a timely and accurate manner. Therefore, real-time monitoring of the idler roller's working condition during belt conveyor operation is particularly important to prevent potential dangerous accidents. The introduction of such a real-time monitoring system is expected to improve the safety and stability of equipment operation, while also helping to reduce labor costs and avoid unexpected downtime and losses during production.

[0003] Current patents regarding intelligent idlers, such as "Intelligent Detection Equipment and Method for Idler Rollers with Environmental Monitoring and Self-Inspection Functions" and "Idler Rollers with Wireless Transmission and Intelligent Monitoring Functions," mostly utilize piezoelectric effect or electromagnetic induction to generate electricity and achieve self-powered operation. However, these self-powered methods often require the installation of numerous components inside the idler roller, making the modification process extremely cumbersome. The emergence of triboelectric nanogenerators provides a novel approach to self-powered monitoring. It can collect minute amounts of mechanical energy from the surrounding environment and convert it into electrical energy, thus eliminating the need for an external power source. This self-sufficient characteristic has led to its widespread application in various devices. Furthermore, thanks to the application of nanotechnology, triboelectric nanogenerators can be designed to be extremely compact, facilitating integration into various micro-devices and systems. Due to their flexibility and efficiency, triboelectric nanogenerators will greatly promote the development of self-powered monitoring technology. Summary of the Invention

[0004] The purpose of this invention is to overcome the problems in Beijing technology and provide a self-driven intelligent monitoring integrated idler roller and monitoring method for belt conveyors. This device can realize real-time monitoring of the pressure and friction force on the idler roller during transportation, and does not require external power supply. It provides a convenient and reliable monitoring means without affecting the normal operation of the equipment, and is expected to significantly improve the operating efficiency and safety of belt conveyors. By combining self-driven intelligent monitoring technology, this invention brings a brand-new solution to the existing idler roller monitoring technology and is expected to achieve widespread application and promotion in the field of industrial production.

[0005] The design concept of this invention is as follows: by encapsulating a self-powered sensor inside the idler roller, the rotational motion of the idler roller can be effectively utilized to collect the required energy and realize the monitoring function, thereby greatly improving the efficiency and reliability of the overall system.

[0006] To achieve the above-mentioned objectives, the present invention adopts the following technical solution: a self-driven intelligent monitoring integrated idler for a belt conveyor, comprising an idler housing and an idler shaft, wherein the idler housing and the idler shaft are mounted together by bearings, the bearings being located in the inner cavity of the idler housing, the bearings comprising an outer ring, an inner ring, a cage and steel balls, the idler shaft passing through the inner ring, and copper foil electrode one and copper foil electrode two being respectively disposed on the inner wall of the inner ring;

[0007] It also includes an integrated circuit board disposed on the idler roller shaft, the integrated circuit board being located inside the cavity of the idler roller housing;

[0008] The integrated circuit board includes a circuit board body, on which a rectifier, a power processing module, a supercapacitor, a data processing module, and a wireless communication module are disposed. The first copper foil electrode and the second copper foil electrode are respectively connected to the input terminal of the rectifier through wires. The output terminal of the rectifier, the control terminal of the power processing module, the wiring terminal of the supercapacitor, the control terminal of the data processing module, and the signal input terminal of the wireless communication module are connected in sequence to form a discharge control circuit.

[0009] The triboelectric nanogenerator consists of a bearing, copper foil electrode one, and copper foil electrode two. The rectifier, supercapacitor, and power processing module together form a rectifier power supply circuit. The data processing module and wireless communication module together form a monitoring circuit. The alternating current generated by the triboelectric nanogenerator is rectified and charged / discharged by the rectifier power supply circuit to power the monitoring circuit. After the monitoring circuit is powered on, it converts the collected current and voltage signals into digital signals and transmits the digital signals to an external host computer.

[0010] Furthermore, a guide groove is provided on the roller shaft, and the guide wire passes around the guide groove.

[0011] Furthermore, the retainer is made of PEEK resin material.

[0012] Furthermore, both the inner and outer rings are made of polytetrafluoroethylene (PTFE).

[0013] Furthermore, in the rectifier power supply circuit, the first copper foil electrode and the second copper foil electrode are connected to the input terminal of the rectifier via wires, the output terminal of the rectifier is connected to the input terminal of the supercapacitor, and the control output terminal of the power processing module is connected to the control input terminal of the supercapacitor.

[0014] Furthermore, in the monitoring circuit, the power supply terminals of the data processing module and the wireless communication module are respectively connected to the power output terminal of the supercapacitor, the signal output terminal of the data processing module is connected to the signal input terminal of the wireless communication module, and the signal output terminal of the wireless communication module is connected to the external host computer control terminal.

[0015] Furthermore, the integrated circuit board is mounted on a fixed platform, which is installed on the roller shaft via a ring structure.

[0016] Furthermore, the fixed platform is made of iron.

[0017] The present invention also provides a monitoring method, which is based on the above-mentioned self-driven intelligent monitoring integrated idler roller for belt conveyors, and includes the following steps:

[0018] S1: The rotation of the idler roller housing drives the bearing to rotate. When the steel ball rolls on the inner ring raceway made of polytetrafluoroethylene, the surface of the polytetrafluoroethylene inner ring and the surface of the steel ball generate equal amounts of charge.

[0019] S2: The alternating current generated by the triboelectric nanogenerator is rectified into direct current by the rectifier. Then, the power processing module controls the charging and discharging of the supercapacitor. After receiving the power supply signal, the data processing module and the wireless communication module begin to monitor the pressure and friction force on the bearing in real time.

[0020] S3: The data processing module accurately acquires the current and voltage signals generated by the bearing during rotation and converts them into digital signals that can be used for analysis and monitoring;

[0021] S4: After the data processing module converts the data into digital signals, it transmits them to the host computer or control console via the wireless communication module.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] 1. This invention provides a self-driven intelligent monitoring integrated idler for belt conveyors. Utilizing the large internal space of the idler and the structural features of the rolling elements, we have comprehensively modified the idler to enable it to simultaneously possess self-powered and data processing functions. Furthermore, it can transmit the collected data to a host computer or control console via a wireless communication module, thereby achieving real-time monitoring of the idler during operation. By analyzing data changes, it can promptly determine whether the idler has malfunctioned, provide early warning of potential accident risks, ensure the safety of industrial production, and improve the reliability of the system. This technology also provides important guarantees for the stable operation and safe production of industrial processes.

[0024] 2. This invention provides a self-driven intelligent monitoring integrated idler for belt conveyors. Utilizing the differences in electron gain and loss capabilities of different materials, electrodes are fixed to the bearing and assembled into a triboelectric nanogenerator. By cleverly utilizing the rotational motion characteristics of the idler, when the idler shell rotates, the steel ball is also driven to rotate. As the steel ball rolls on the PTFE inner ring raceway, equal amounts of charge are generated on the PTFE inner ring surface and the steel ball surface. These charges flow between the electrodes through electrostatic induction. During this process, the triboelectric nanogenerator collects and converts the mechanical energy generated by the idler rotation into electrical energy. This enables the bearing to have continuous power generation capabilities, forming a self-driven intelligent monitoring integrated idler with self-powered and data transmission functions. This technology not only achieves real-time monitoring of the bearing but also breaks through the functional limitations of traditional idlers, injecting new momentum into the automation and intelligence of industrial production.

[0025] 3. The self-driven intelligent monitoring integrated idler roller for belt conveyors provided by this invention not only has high space utilization, but also the power generation capacity of the triboelectric nanogenerator is positively correlated with the number of power generation units. In order to further improve the power generation capacity, the number of electrodes per unit area on the bearing can be increased by changing the distance between the electrodes, or the idler roller can be modified to increase the number of bearings. It is worth noting that the bearings in the self-driven intelligent monitoring integrated idler roller described in this invention are not only applicable to idler rollers, but can also be widely used in various rotating machinery, which has considerable scalability and practical value. This technology provides a new solution for energy self-sufficiency and condition monitoring of rotating machinery monitoring equipment, and has broad market prospects and application potential.

[0026] 4. Due to their rotational motion characteristics and hollow structure, idlers are ideally suited for mounting various monitoring devices. This design not only makes idlers an ideal platform that can accommodate and integrate multiple self-powered sensors, but also has the potential to realize self-driven intelligent monitoring integrated idlers. This design not only endows idlers with more functions, but also provides new possibilities for the application of intelligent monitoring technology. Attached Figure Description

[0027] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0028] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0029] Figure 2 This is a schematic diagram of the idler roller structure of the present invention.

[0030] Figure 3 This is a schematic diagram of the structure and working principle of the triboelectric nanogenerator of the present invention.

[0031] Figure 4 This is a schematic diagram of an integrated circuit board structure.

[0032] Figure 5 This is a schematic diagram illustrating the working principle of the present invention.

[0033] Figure 6 This is a schematic diagram showing the relationship between the measured voltage and pressure in this invention.

[0034] Figure 7 This is a schematic diagram showing the relationship between the measured voltage and frictional force in this invention.

[0035] Figure 8 This is a schematic diagram showing the relationship between the measured voltage and rotational speed in this invention.

[0036] The attached figures are labeled as follows:

[0037] 1. Idler roller; 2. Idler roller housing; 3. Idler roller shaft; 4. Sealing ring; 5. Bearing; 6. Outer ring; 7. Inner ring; 8. Steel ball; 9. Copper foil electrode one; 10. Copper foil electrode two; 11. Fixing platform; 12. Integrated circuit board; 13. Rectifier; 14. Power processing module; 15. Supercapacitor; 16. Data processing module; 17. Wireless communication module. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. Of course, the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0039] Example: Figure 1-7 As shown, this embodiment provides a self-driven intelligent monitoring integrated idler for a belt conveyor, including an idler 1, a triboelectric nanogenerator, and an integrated circuit board 12.

[0040] The idler roller 1 consists of an idler roller shaft 3, a bearing 5, and an idler roller housing 2. The idler roller housing 2 is fitted onto the idler roller shaft 3 and aligned with its axis. The idler roller housing 2 and the idler roller shaft 3 are connected by the bearing 5. In addition, two electrodes are covered on the inner side of the inner ring 7 of the bearing 5 to provide power for power generation. Meanwhile, a fixed platform 11 is provided on the idler roller shaft 3 located in the inner cavity of the idler roller housing 2 for placing an integrated circuit board 12. This design integrates the belt conveyor with self-driving function and intelligent monitoring, improving its performance and reliability, and has broad application prospects.

[0041] The outer shell of the idler roller 2 is made of polyurethane, which has excellent wear resistance and corrosion resistance, while being lightweight and flexible.

[0042] The idler roller shaft 3 is made of high-strength steel, ensuring sufficient load-bearing capacity and stability. In this device, an energy harvesting device is introduced, which triggers energy harvesting through the rotational motion of the bearing 5, thereby obtaining periodic triboelectric signals. These signals are rectified by the rectifier 13 to provide a stable power supply for the system. In addition, the bearing 5 and the integrated circuit board 12 set on the idler roller shaft 3 together constitute the core component of the intelligent monitoring system, realizing real-time monitoring and data transmission of the conveying process.

[0043] The bearing 5 consists of five parts: an inner ring 7, an outer ring, a cage, rollers, and electrodes. It rotates synchronously with the outer shell 2 of the idler roller. Both the inner ring 7 and the outer ring 6 are made of polytetrafluoroethylene (PTFE). The two electrodes are copper foil electrode 1 9 and copper foil electrode 2 10, which are fixed inside the inner ring 7. The rollers are steel balls 8. The cage needs to withstand centrifugal force, impact, and vibration. As the steel balls 8 rotate, there is a large amount of sliding friction between the cage and the steel balls 8, which generates a lot of heat. Therefore, the cage material needs to have good thermal conductivity, wear resistance, low coefficient of friction, low density, and good elasticity and stiffness. Polyetheretherketone (PEEK) resin is a high-performance special engineering plastic. Compared with other engineering plastics, PEEK resin has more significant advantages, including high temperature resistance, excellent mechanical properties, and good self-lubricating properties. Therefore, choosing PEEK resin as the cage material is a wise choice. The bearing 5 and the two copper foil electrodes set in the inner ring 7 together constitute a triboelectric nanogenerator, specifically as follows: Figure 3 As shown in the roller housing 2, copper foil electrode 1 9 and copper foil electrode 2 10 are attached to the inner side of the inner ring 7 of the bearing 5 to ensure that the electrodes are firmly attached to ensure the reliability of triboelectric power generation.

[0044] The fixed platform 11 is made of iron, and its ring-shaped structure design allows it to be stably mounted on the idler roller shaft 3 and securely fixed in place with screws. This robust structural design ensures that the platform will not loosen or swing during the operation of the idler roller 1, thereby reliably supporting and fixing the integrated circuit board 12. It also provides a stable foundation for the entire system. This design helps to achieve stable installation and reliable operation of the intelligent monitoring device inside the idler roller 1, providing solid technical support for the monitoring function of the belt conveyor.

[0045] The integrated circuit board 12 is securely mounted on the roller shaft 3 via the fixed platform 11. The integrated circuit board 12 includes a circuit board body, and a rectifier 13, a supercapacitor 15, an energy processing module 14, a data processing module 16, and a wireless communication device soldered onto the circuit board body, thereby enabling intelligent monitoring functions. The integrated circuit board 12 is connected to the bearing 5 via a wire. The rectifier 13 can convert the alternating current generated by the triboelectric nanogenerator during rotation into direct current. The energy processing module 14 supplies power to the data processing module 16 by controlling the charging and discharging of the supercapacitor 15, thereby realizing the transmission of data and energy. The data processing module 16 and the supercapacitor 15 are connected to the energy processing module 14. All these components are arranged on the integrated circuit board 12, integrating energy conversion and data transmission functions into a compact integrated circuit board 12.

[0046] Among them, copper foil electrode 19 and copper foil electrode 20 are connected to the input terminal of rectifier 13 through wires, the output terminal of rectifier 13 is connected to the input terminal of supercapacitor 15, and the control output terminal of power processing module 14 is connected to the control input terminal of supercapacitor 15.

[0047] The power supply terminals of the data processing module 16 and the wireless communication module 17 are respectively connected to the power output terminal of the supercapacitor 15. The signal output terminal of the data processing module 16 is connected to the signal input terminal of the wireless communication module 17. The signal output terminal of the wireless communication module 17 is connected to an external host computer.

[0048] To better achieve the above-mentioned objectives, the present invention also provides an integrated self-driven intelligent monitoring idler for belt conveyors and a monitoring method thereof, comprising the following steps:

[0049] S1: The rotation of the roller shell 2 drives the bearing 5 to rotate. When the steel ball 8 rolls on the raceway of the polytetrafluoroethylene inner ring 7, the surface of the polytetrafluoroethylene inner ring 7 and the surface of the steel ball 8 generate equal amounts of charge. When the steel ball 8 rolls from copper foil electrode 19 to copper foil electrode 20, electrostatic induction drives the negative charge from copper foil electrode 19 to copper foil electrode 20 through the external load to balance the local electric field of the non-moving negative charge on the dielectric. When the steel ball 8 reaches the overlapping position of copper foil electrode 20, all the negative charge is driven to copper foil electrode 20. Subsequently, the steel ball 8 continuously rolls away from copper foil electrode 20, driving the negative charge to flow back from copper foil electrode 20 to copper foil electrode 19, forming a reverse current in the external load. Obviously, as the bearing 5 rotates, these four stages will repeat periodically, thereby generating an alternating current in the circuit.

[0050] When the pressure changes, the electrical signal generated in the circuit will also change accordingly: when the idler roller 1 is subjected to greater pressure, the bearing 5 inside the idler roller 1 will also be subjected to greater pressure, the separation distance between the friction pairs will decrease, the actual contact area will increase, and the generated electrical signal will also increase accordingly; when the idler roller 1 is subjected to less pressure, the bearing 5 inside the idler roller 1 will also be subjected to less pressure, the separation distance between the friction pairs will increase, the actual contact area will decrease, and the generated electrical signal will also decrease accordingly.

[0051] When the frictional force changes, the electrical signal generated in the circuit will also change accordingly: when the idler roller 1 bears a greater frictional force, the bearing 5 inside the idler roller 1 will rotate slower, the contact frequency between the friction pairs will decrease, and the generated electrical signal will also decrease accordingly; when the idler roller 1 bears a smaller frictional force, the bearing 5 inside the idler roller 1 will rotate faster, the contact frequency between the friction pairs will increase, and the actual generated electrical signal will also increase accordingly.

[0052] S2: The alternating current generated in the circuit is rectified into direct current by rectifier 13, and then the charging and discharging of supercapacitor 15 is controlled by power processing module 14. Once supercapacitor 15 is fully charged or needs to release stored electrical energy, power processing module 14 will make corresponding adjustments. After this process is completed, data processing module 16 and wireless communication device receive power supply signal and start working, preparing for subsequent data acquisition and transmission.

[0053] S3: The data processing module 16 accurately collects the current and voltage signals generated by the bearing 5 inside the roller 1 during rotation and converts them into digital signals that can be analyzed and monitored. These signals reflect the key parameters of the bearing 5 during rotation and provide important input data for subsequent condition assessment and fault diagnosis.

[0054] S4: The current and voltage signals of the bearing 5 during rotation, which are collected and converted by the data processing module 16, are transmitted to the host computer or control console via the wireless communication module 17. This real-time transmission process enables comprehensive monitoring and remote diagnosis of the idler roller 1 during operation, providing strong technical support for real-time monitoring of the operating status and preventive maintenance.

[0055] like Figure 5As shown in sealing ring 4, the working principle of this invention is based on the rotation of bearing 5 and sealing ring 4. When steel ball 8 passes through copper foil electrode 19, periodic alternating current is generated in the circuit. These alternating currents are rectified and filtered by rectifier 13, thereby realizing the effective conversion of AC to DC. Subsequently, power processing module 14 controls the charging and discharging process of supercapacitor 15. Once supercapacitor 15 is fully charged or needs to release stored power, power processing module 14 will make corresponding adjustments. After this process is completed, data processing module 16 and wireless communication device receive power supply signals and start working. Data processing module 16 is responsible for accurately collecting the current and voltage signals generated during the rotation of bearing 5 inside roller 1 and converting them into digital signals that can be used for analysis and monitoring. Subsequently, these data are transmitted to the host computer or control console through wireless communication module 17 to realize real-time monitoring and analysis of roller 1 during operation.

[0056] like Figure 6 As shown in bearing 5, this is a schematic diagram of the relationship between voltage and pressure. The voltage changes with the pressure, and there is a corresponding relationship between pressure and voltage. When the pressure increases in stages from 100N to 500N, the voltage increases from 23V to 56V.

[0057] like Figure 7 As shown in outer ring 6, this is a schematic diagram of the relationship between voltage and friction. The voltage changes with the friction, and there is a corresponding relationship between friction and voltage. When the friction increases in stages from 100N to 500N, the voltage decreases from 11.2V to 4.7V.

[0058] like Figure 8 As shown in inner ring 7, this is a schematic diagram of the relationship between voltage and rotational speed. The voltage changes with the rotational speed, and there is a corresponding relationship between the rotational speed and the voltage. When the rotational speed increases in stages from 100 r / min to 600 r / min, the voltage increases from 19V to 83V.

[0059] In summary: When the idler roller housing 2 rotates, it drives the bearing 5 to rotate. When the steel ball 8 rolls on the raceway of the PTFE inner ring 7, equal amounts of charge are generated on the surface of the PTFE inner ring 7 and the surface of the steel ball 8. When the steel ball 8 rolls from copper foil electrode 1 9 to copper foil electrode 2 10, electrostatic induction drives negative charges to flow from copper foil electrode 1 9 to copper foil electrode 2 10 through the external load, thus balancing the local electric field of the non-moving negative charges on the dielectric. When the steel ball 8 reaches the overlapping position of copper foil electrode 2 10, all the negative charges are driven to copper foil electrode 2 10. Subsequently, the steel ball 8 continuously rolls away from copper foil electrode 2 10, driving negative charges to flow from electrode 2 back to electrode 1, forming a reverse current in the external load. Obviously, as the bearing 5 rotates, the above process will continue. The alternating current generated in the circuit is rectified into direct current by rectifier 13. Then, the charging and discharging of supercapacitor 15 is controlled by power processing module 14. Once supercapacitor 15 is fully charged or needs to release stored energy, power processing module 14 will make corresponding adjustments. After this process is completed, data processing module 16 and wireless communication device receive power supply signal and start working. Data processing module 16 accurately collects the current and voltage signals generated by bearing 5 inside roller 1 during rotation and converts them into digital signals that can be used for analysis and monitoring. The signals are then transmitted to host computer or control console through wireless communication module 17, thereby realizing real-time monitoring of roller 1 during operation.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A self-driven intelligent monitoring integrated idler for a belt conveyor, comprising an idler housing (2) and an idler shaft (3), wherein the idler housing (2) and the idler shaft (3) are mounted together by a bearing (5), the bearing (5) being located in the inner cavity of the idler housing (2), the bearing (5) comprising an outer ring (6), an inner ring (7), a cage and steel balls (8), the idler shaft (3) passing through the inner ring (7), characterized in that, Copper foil electrode one (9) and copper foil electrode two (10) are respectively provided on the inner wall of the inner ring (7); It also includes an integrated circuit board (12) disposed on the roller shaft (3), the integrated circuit board (12) being located inside the inner cavity of the roller housing (2); The integrated circuit board (12) includes a circuit board body, on which a rectifier (13), an energy processing module (14), a supercapacitor (15), a data processing module (16), and a wireless communication module (17) are provided. The copper foil electrode one (9) and the copper foil electrode two (10) are respectively connected to the input terminal of the rectifier (13) through wires. The output terminal of the rectifier (13), the control terminal of the energy processing module (14), the wiring terminal of the supercapacitor (15), the control terminal of the data processing module (16), and the signal input terminal of the wireless communication module (17) are connected in sequence to form a discharge control circuit. Among them, the bearing (5), copper foil electrode one (9) and copper foil electrode two (10) together constitute the triboelectric nanogenerator, the rectifier (13), the supercapacitor (15) and the power processing module (14) together constitute the rectifier power supply circuit, and the data processing module (16) and the wireless communication module (17) together constitute the monitoring circuit. The alternating current generated by the triboelectric nanogenerator is rectified and charged and discharged by the rectifier power supply circuit to power the monitoring circuit. After the monitoring circuit is powered on, it converts the collected current and voltage signals into digital signals and transmits the digital signals to the external host computer. The idler roller also performs the following monitoring method, including the following steps: S1: The rotation of the roller shell (2) drives the bearing (5) to rotate. When the steel ball (8) rolls on the raceway of the inner ring (7) made of polytetrafluoroethylene, the surface of the inner ring (7) of polytetrafluoroethylene and the surface of the steel ball (8) generate equal amounts of charge. S2: The alternating current generated by the triboelectric nanogenerator is rectified into direct current by the rectifier (13), and then the charging and discharging of the supercapacitor (15) is controlled by the power processing module (14). After receiving the power supply signal, the data processing module (16) and the wireless communication module (17) begin to monitor the pressure and friction of the bearing (5) in real time. S3: The data processing module (16) accurately collects the current and voltage signals generated by the bearing (5) during rotation and converts them into digital signals that can be used for analysis and monitoring; S4: After the data processing module (16) converts the data into a digital signal, it transmits it to the host computer or console through the wireless communication module (17).

2. The self-driven intelligent monitoring integrated idler roller for a belt conveyor according to claim 1, characterized in that, The idler roller shaft (3) is provided with a guide groove, and the guide wire passes around the guide groove.

3. The self-driven intelligent monitoring integrated idler roller for a belt conveyor according to claim 1, characterized in that, The cage is made of PEEK resin material.

4. The self-driven intelligent monitoring integrated idler roller for a belt conveyor according to claim 3, characterized in that, Both the inner ring (7) and the outer ring (6) are made of polytetrafluoroethylene.

5. The self-driven intelligent monitoring integrated idler roller for a belt conveyor according to claim 4, characterized in that, In the rectifier power supply circuit, the copper foil electrode one (9) and the copper foil electrode two (10) are connected to the input terminal of the rectifier (13) through wires, the output terminal of the rectifier (13) is connected to the input terminal of the supercapacitor (15), and the control output terminal of the power processing module (14) is connected to the control input terminal of the supercapacitor (15).

6. The self-driven intelligent monitoring integrated idler roller for a belt conveyor according to claim 5, characterized in that, In the monitoring circuit, the power supply terminals of the data processing module (16) and the wireless communication module (17) are respectively connected to the power output terminal of the supercapacitor (15), the signal output terminal of the data processing module (16) is connected to the signal input terminal of the wireless communication module (17), and the signal output terminal of the wireless communication module (17) is connected to the external host computer control terminal.

7. The self-driven intelligent monitoring integrated idler roller for a belt conveyor according to claim 1, characterized in that, The integrated circuit board (12) is mounted on the fixed platform (11), which is mounted on the roller shaft (3) via a ring structure.

8. The self-driven intelligent monitoring integrated idler roller for a belt conveyor according to claim 7, characterized in that, The fixed platform (11) is made of iron.

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