Induction power generation system based on magnetic resistance change

Abstract

The invention provides an induction power generation system based on magnetic resistance change. The induction power generation system comprises a metal gear, a non-metal gear, at least one coil and a monitoring module, the metal gear and the non-metal gear are rotationally arranged and meshed with each other. The coil is arranged on the non-metal gear, a first preset distance is formed between the coil and a center shaft of the non-metal gear, and the coil is used for generating an electric signal based on distance change with the metal gear when the metal gear and the non-metal gear synchronously rotate; the input end of the monitoring module is connected with the output end of the coil, and the monitoring module is used for monitoring the structural state of the metal gear according to changes of electric signals output by the coil. According to the induction power generation system based on the magnetic resistance change, the structure state of the metal gear can be monitored according to the change of the electric signal output by the coil, and then rapid and accurate fault diagnosis of rotating mechanical equipment where the metal gear is located can be achieved according to state monitoring of the metal gear.

Description

Technical Field

[0001] The present disclosure relates to the technical field of gear monitoring, and in particular to an induction power generation system based on magnetic resistance change. Background Art

[0002] Rotating machinery and equipment are the power transmission hub of industrial production, and accurate equipment status monitoring is an important guarantee for industrial safety production. Since the equipment is in a high-load operation state for a long time and the working environment is complex, gearbox failures often occur. Common failures include broken teeth, missing teeth, gear eccentricity, failure, gear wear, gear cracks, etc. Therefore, effective status monitoring of rotating machinery and equipment is crucial.

[0003] The condition monitoring of rotating machinery equipment was initially based on the nonlinear functional relationship between power and gear accuracy, and gradually developed into measuring vibration signals to form dimensioned statistical parameters, and further developed into combining waveform analysis to perform time domain waveform analysis, FFT spectrum analysis, power spectrum analysis, inverse spectrum analysis, envelope demodulation analysis, high-order spectrum analysis, spectrum kurtosis analysis, etc. on abnormal vibration signals. Waveform analysis can efficiently and clearly extract fault features, but it is still insufficient in extracting non-stationary signals and signals with strong noise interference.

[0004] We are now trying to analyze system failures without using the mainstream method of collecting vibration noise signals, but instead monitor the failures of rotating mechanical equipment through changes in magnetic resistance. Summary of the invention

[0005] The present disclosure aims to solve one of the technical problems in the related art at least to some extent.

[0006] To this end, an object of the present disclosure is to provide an induction power generation system based on magnetic resistance change.

[0007] To achieve the above-mentioned purpose, the present disclosure provides an induction power generation system based on magnetic resistance change, including: a metal gear, a non-metallic gear, at least one coil and a monitoring module; the metal gear and the non-metallic gear are respectively rotatably arranged and mesh with each other; the coil is arranged on the non-metallic gear, and the central axis of the coil and the non-metallic gear has a first preset distance, and the coil is used to generate an electrical signal based on the change of the distance with the metal gear when the metal gear and the non-metallic gear rotate synchronously; the input end of the monitoring module is connected to the output end of the coil, and the monitoring module is used to monitor the structural state of the metal gear according to the change of the electrical signal output by the coil.

[0008] Optionally, the system further includes: at least one permanent magnet, which is disposed on the non-metallic gear and is located at an end of the coil away from the central axis of the non-metallic gear.

[0009] Optionally, the system further includes: an iron core, the iron core is disposed on the non-metallic gear, and the central axis of the iron core and the non-metallic gear have the first preset distance, and the coil is sleeved on the iron core.

[0010] Optionally, the system further includes: a load, wherein an input end of the load is connected to an output end of the coil.

[0011] Optionally, the system further includes: a fixed support and a slip ring; wherein, the conductive ring of the slip ring is arranged on the non-metallic gear, and the central axis of the conductive ring coincides with the central axis of the non-metallic gear, and the conductive ring is connected to the output end of the coil; the brush of the slip ring is arranged on the fixed support, and the brush is connected to the input end of the monitoring module.

[0012] Optionally, the non-metallic gear includes: a first half gear and a second half gear, wherein the first half gear and the second half gear are detachably connected along the axial direction of the non-metallic gear; wherein, at least one first groove is provided on the side of the first half gear close to the second half gear, and the first groove and the center axis of the first half gear have the first preset distance; at least one second groove is provided on the side of the second half gear close to the first half gear, and the second groove and the center axis of the second half gear have the first preset distance; the first groove and the second groove are arranged opposite to each other and form a receiving groove, and the coil is arranged in the receiving groove; the conductive ring is arranged on the side of the first half gear away from the second half gear, and the center axis of the conductive ring coincides with the center axis of the first half gear.

[0013] Optionally, the non-metallic gear also includes: at least one first fixing hole, the first fixing hole passes through the first half gear, and the first fixing hole and the center axis of the first half gear have a second preset distance; at least one second fixing hole, the second fixing hole passes through the second half gear, and the second fixing hole and the center axis of the second half gear have a second preset distance; at least one bolt, the threaded portion of the bolt passes through the first fixing hole and the second fixing hole in sequence and connects the first half gear and the second half gear.

[0014] Optionally, the non-metallic gear further includes: a protruding shaft, which is arranged on the side of the first half gear away from the second half gear, and the central axis of the protruding shaft coincides with the central axis of the first half gear, and the conductive ring is sleeved on the protruding shaft.

[0015] Optionally, the non-metallic gear also includes: a sleeve, which is arranged on the side of the second half gear away from the first half gear, and the center axis of the sleeve coincides with the center axis of the second half gear; an axial hole, which passes through the sleeve and the second half gear along the axial direction of the second half gear; a rotating shaft, which is rotatably arranged, and one end of the rotating shaft is arranged in the axial hole; at least one third fixing hole, which passes through the sleeve along the radial direction of the second half gear; and at least one fixing screw, the threaded portion of the fixing screw being threadedly arranged in the third fixing hole and abutting against the rotating shaft.

[0016] Optionally, the system also includes: at least one first wire, which is connected in series between the conductive ring and the output end of the coil, and the input end of the first wire is connected to the output end of the coil, and the output end of the first wire is connected to the conductive ring; and / or, at least one second wire, which is connected in series between the brush and the input end of the monitoring module, and the input end of the second wire is connected to the output end of the brush, and the output end of the second wire is connected to the input end of the monitoring module.

[0017] The technical solution provided by the present disclosure may have the following beneficial effects:

[0018] Since the metal gear and the non-metal gear mesh with each other, and the coil is set on the non-metal gear, when the metal gear and the non-metal gear rotate synchronously, the distance between the coil and the metal gear changes regularly, so that the magnetic flux of the coil changes accordingly, and then the coil generates an induced electromotive force, realizing the regular output of the AC signal, and when the metal gear has local defects, broken teeth and other problems, the electrical signal output by the coil will change, thereby enabling the monitoring module to monitor the structural state of the metal gear according to the change of the electrical signal output by the coil, and then according to the state monitoring of the metal gear, it can realize the rapid and accurate fault diagnosis of the rotating mechanical equipment where the metal gear is located. Among them, the induction power generation system based on the change of magnetic resistance has a simple structure and is easy to install, and generates an induced electromotive force through the change of magnetic resistance, which solves the problem of limited installation position of the sensor, and reduces the limitation of structural integrity and dependence on external power supply.

[0019] Additional aspects and advantages of the present disclosure will be given in part in the following description and in part will be obvious from the following description or learned through practice of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present disclosure will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0021] Figure 1is a structural schematic diagram of an induction power generation system based on magnetic resistance change proposed in one embodiment of the present disclosure;

[0022] Figure 2 is a cross-sectional schematic diagram of a non-metallic gear in an induction power generation system based on magnetic resistance change proposed in an embodiment of the present disclosure;

[0023] Figure 3 It is a structural schematic diagram of a non-metallic gear in an induction power generation system based on magnetic resistance change proposed in one embodiment of the present disclosure;

[0024] Figure 4 is a power generation principle diagram of an induction power generation system based on magnetic resistance change proposed in one embodiment of the present disclosure;

[0025] Figure 5 is a speed-voltage RMS value curve diagram proposed in an embodiment of the present disclosure (when the speed is 50 rpm);

[0026] Figure 6 is a speed-voltage RMS value curve diagram proposed in an embodiment of the present disclosure (when the speed is 100 rpm);

[0027] Figure 7 is a speed-voltage RMS value curve diagram proposed in an embodiment of the present disclosure (when the speed is 150 rpm);

[0028] As shown in the figure: 1. non-metallic gear, 11. first half gear, 12. second half gear, 13. first groove, 14. second groove, 15. first fixing hole, 16. second fixing hole, 17. protruding shaft, 18. protruding sleeve, 19. shaft hole, 110. third fixing hole;

[0029] 2. Metal gear, 3. Coil, 4. Permanent magnet, 5. Iron core, 6. Slip ring, 7. First wire, 8. Second wire. DETAILED DESCRIPTION

[0030] Embodiments of the present disclosure are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present disclosure, and are not to be construed as limitations of the present disclosure. On the contrary, the embodiments of the present disclosure include all changes, modifications, and equivalents that fall within the spirit and connotation of the appended claims.

[0031] The current monitoring scheme has problems such as limited sensor installation locations, impact on structural integrity, and reliance on external power supplies. Therefore, an attempt is made not to use the mainstream method of collecting vibration noise signals to analyze system failures, but to monitor the failures of rotating mechanical equipment through changes in magnetic resistance.

[0032] like Figure 1 , Figure 3 and Figure 4 As shown, the embodiment of the present disclosure proposes an induction power generation system based on magnetic resistance change, including: a metal gear 2, a non-metallic gear 1, at least one coil 3 and a monitoring module (not shown in the figure), the metal gear 2 and the non-metallic gear 1 are respectively arranged to rotate and mesh with each other, the coil 3 is arranged on the non-metallic gear 1, and the central axes of the coil 3 and the non-metallic gear 1 have a first preset distance, the coil 3 is used to generate an electrical signal based on the distance change with the metal gear 2 when the metal gear 2 and the non-metallic gear 1 rotate synchronously, the input end of the monitoring module is connected to the output end of the coil 3, and the monitoring module is used to monitor the structural state of the metal gear 2 according to the change of the electrical signal output by the coil 3.

[0033] It can be understood that since the metal gear 2 and the non-metallic gear 1 are meshed with each other and the coil 3 is arranged on the non-metallic gear 1, when the metal gear 2 and the non-metallic gear 1 rotate synchronously, the distance between the coil 3 and the metal gear 2 changes regularly, so that the magnetic flux of the coil 3 changes accordingly, and then the coil 3 generates an induced electromotive force, thereby realizing the regular output of the AC signal, and when the metal gear 2 has local defects, broken teeth and other problems, the electrical signal output by the coil 3 will change, thereby enabling the monitoring module to monitor the structural state of the metal gear 2 according to the change of the electrical signal output by the coil 3, and then based on the state monitoring of the metal gear 2, it can realize the rapid and accurate fault diagnosis of the rotating mechanical equipment where the metal gear 2 is located.

[0034] Among them, the induction power generation system based on magnetic resistance change has a simple structure and is easy to install. It generates induced electromotive force through magnetic resistance change, which solves the problem of limited sensor installation position and reduces the limitations on structural integrity and dependence on external power supply.

[0035] It should be noted that when the metal gear 2 rotates periodically, it not only drives the non-metal gear 1 to rotate synchronously, but also the distance between the coil 3 and the metal gear 2 changes regularly. When the coil 3 is close to the metal gear 2, the magnetic resistance will decrease, and when the coil 3 is far away from the metal gear 2, the magnetic resistance will increase. Therefore, when the metal gear 2 and the non-metal gear 1 rotate, the magnetic flux in the coil 3 will change. With the periodic rotation, a voltage will be generated in the coil 3, generating an AC signal that changes regularly. When the metal gear 2 has broken teeth, missing teeth, gear eccentricity, faults, gear wear, gear cracks and other problems, the electrical signal changes. Therefore, the structural state of the metal gear 2 can be accurately monitored based on the changes in the electrical signal.

[0036] As a component in a rotating mechanical device, the metal gear 2 not only plays a transmission role, but also drives the rotation of the non-metallic gear 1. The metal gear 2 is made of metal material. The specific type of the metal gear 2 can be set according to actual needs and is not limited to this. For example, the metal material of the metal gear 2 can be steel, iron, etc., which can withstand a large load.

[0037] The non-metallic gear 1 is used to arrange the coil 3 and is paired with the metal gear 2 to rotate driven by the metal gear 2. The non-metallic gear 1 is made of non-metallic material. The specific type of the non-metallic gear 1 can be set according to actual needs and is not limited to this. For example, the material of the non-metallic gear 1 can be resin, nylon and other polymer materials.

[0038] The coil 3 is used to generate an electrical signal by utilizing the distance change between the coil 3 and the metal gear 2 while rotating with the non-metal gear 1. The specific type of the coil 3 can be set according to actual needs and is not limited thereto.

[0039] The number of coils 3 can be set according to actual needs, and there is no limitation on this. For example, the number of coils 3 can be one, two, three, four, five, six, seven, eight, nine, ten, etc. When the number of coils 3 is multiple, the multiple coils 3 are evenly distributed along the circumference of the non-metallic gear 1.

[0040] The monitoring module is used to monitor the structural state of the metal gear 2 according to the change of the electrical signal output by the coil 3. The specific type of the monitoring module can be set according to actual needs and is not limited to this. For example, the monitoring module can be a processor, a controller, etc.

[0041] like Figures 5 to 7 As shown, the RMS value of the voltage signal at each speed is taken to draw a speed-voltage RMS value curve. This is the AC signal of the system at 50 speed, 100 speed and 150 speed when an electromagnetic coil 3 is embedded.

[0042] like Figure 1 As shown, in some embodiments, the system further includes: at least one permanent magnet 4, which is disposed on the non-metallic gear 1, and the permanent magnet 4 is located at one end of the coil 3 away from the central axis of the non-metallic gear 1.

[0043] It can be understood that since the permanent magnet 4 is arranged on the non-metallic gear 1 and the permanent magnet 4 is located at the end of the coil 3 away from the central axis of the non-metallic gear 1, the permanent magnet 4 can use its own permanent magnetism to provide a stable magnetic field for the coil 3, so that the coil 3 generates an induced electromotive force based on the magnetic field. At the same time, the permanent magnet 4 interacts with the coil 3 to enhance the overall magnetic field strength, thereby improving the electromagnetic induction effect of the coil 3.

[0044] It should be noted that the specific type of the permanent magnet 4 can be set according to actual needs and is not limited to this. For example, the permanent magnet 4 can be a block magnet.

[0045] like Figure 1 As shown, in some embodiments, the system further includes: an iron core 5, the iron core 5 is disposed on the non-metallic gear 1, and the central axes of the iron core 5 and the non-metallic gear 1 have a first preset distance, and the coil 3 is sleeved on the iron core 5.

[0046] It can be understood that since the iron core 5 is arranged on the non-metallic gear 1 and the coil 3 is sleeved on the iron core 5, the iron core 5 can enhance the magnetic field strength of the coil 3, reduce the magnetic resistance of the coil 3, increase the inductance of the coil 3 and concentrate the magnetic lines of force, thereby improving the electromagnetic induction effect of the coil 3.

[0047] It should be noted that the magnetic permeability of the iron core 5 is much higher than that of air. After the iron core 5 is inserted, the magnetic field generated by the coil 3 will be concentrated in the iron core 5, thereby significantly enhancing the magnetic field strength; the high magnetic permeability of the iron core 5 greatly reduces the magnetic resistance of the magnetic circuit, thereby increasing the magnetic flux and enhancing the electromagnetic induction effect of the induction coil 3; the addition of the iron core 5 can significantly increase the inductance of the induction coil 3, thereby increasing its impedance to high-frequency signals in the AC circuit, and playing a better filtering and energy storage role; the iron core 5 can concentrate the magnetic lines of force around the coil 3, reduce the leakage of the magnetic field, and improve the utilization efficiency of the magnetic field.

[0048] The specific type of the iron core 5 can be set according to actual needs and is not limited thereto.

[0049] In some embodiments, the system further includes: a load, wherein an input end of the load is connected to an output end of the coil 3 .

[0050] It can be understood that, since the input end of the load is connected to the output end of the coil 3, when the metal gear 2 and the non-metal gear 1 rotate synchronously, the AC signal generated by the coil 3 can be transmitted to the load, thereby meeting the power demand of the load and realizing the corresponding function.

[0051] It should be noted that by analyzing the current and voltage variation curves of the coil 3, the optimal load and the maximum output power can be analyzed and obtained, thereby realizing a solution of using the electric energy generated by electromagnetic induction to drive the load.

[0052] The specific type of the load can be set according to actual needs, and there is no limitation on this. For example, the load can be some small power devices.

[0053] like Figure 3As shown, in some embodiments, the system further includes: a fixed support (not shown in the figure) and a slip ring 6. The conductive ring of the slip ring 6 is arranged on the non-metallic gear 1, and the central axis of the conductive ring coincides with the central axis of the non-metallic gear 1, the conductive ring is connected to the output end of the coil 3, and the brush of the slip ring 6 is arranged on the fixed support, and the brush is connected to the input end of the monitoring module.

[0054] It can be understood that, since the conductive ring of the slip ring 6 is arranged on the non-metallic gear 1, and the central axis of the conductive ring coincides with the central axis of the non-metallic gear 1, the conductive ring is connected to the output end of the coil 3, so that the conductive ring can rotate synchronously with the non-metallic gear 1 while transmitting the electrical signal output by the coil 3. Moreover, since the brush of the slip ring 6 is arranged on a fixed support, and the brush is connected to the input end of the monitoring module, the brush can be fixedly arranged while the sliding contact between the brush and the conductive ring can be used to stably transmit the electrical signal output by the coil 3 to the monitoring module, thereby ensuring the accurate monitoring of the metal gear 2 by the monitoring module.

[0055] It should be noted that the fixed support is used to support the slip ring 6, and the specific type of the fixed support can be set according to actual needs and is not limited to this.

[0056] The slip ring 6 is also called a rotating electrical interface, a collector ring or a rotating joint. It is a device that can transfer electricity, signals or fluids between a rotating component and a fixed component. Specifically, the slip ring 6 is used to establish a stable electrical path between the rotating coil 3 and the fixed monitoring module. The slip ring 6 includes: a conductive ring (rotor) and a brush (stator). The brush sleeve is arranged on the conductive ring, and the two are in sliding contact. The specific type of the slip ring 6 can be set according to actual needs and is not limited to this.

[0057] like Figure 2 and Figure 3 As shown, in some embodiments, the non-metallic gear 1 includes: a first half gear 11 and a second half gear 12, and the first half gear 11 and the second half gear 12 are detachably connected along the axial direction of the non-metallic gear 1. Among them, at least one first groove 13 is provided on the side of the first half gear 11 close to the second half gear 12, and the first groove 13 and the central axis of the first half gear 11 have a first preset distance, and at least one second groove 14 is provided on the side of the second half gear 12 close to the first half gear 11, and the second groove 14 and the central axis of the second half gear 12 have a first preset distance, the first groove 13 and the second groove 14 are arranged opposite to each other and form a receiving groove, and the coil 3 is arranged in the receiving groove; the conductive ring is arranged on the side of the first half gear 11 away from the second half gear 12, and the central axis of the conductive ring coincides with the central axis of the first half gear 11.

[0058] It can be understood that since the first half gear 11 and the second half gear 12 are detachably connected along the axial direction of the non-metallic gear 1, and the first groove 13 and the second groove 14 are arranged opposite to each other and form a receiving groove, the coil 3 is arranged in the receiving groove, so that the first half gear 11 and the second half gear 12 constitute a split non-metallic gear 1, thereby facilitating the disassembly and assembly of the coil 3, making the system more convenient to use.

[0059] It should be noted that the first half gear 11 and the second half gear 12 are used to form a split non-metallic gear 1, which can also be understood as the non-metallic gear 1 is cut in half along a direction parallel to the side surface of the gear to obtain the first half gear 11 and the second half gear 12.

[0060] Among them, the first half gear 11 is used to form the first groove 13 and the conductive ring for arranging the slip ring 6, and the second half gear 12 is used to form the second groove 14. The specific types of the first half gear 11 and the second half gear 12 can be set according to actual needs and are not limited to this.

[0061] like Figure 2 As shown, in some embodiments, the non-metallic gear 1 also includes: at least one first fixing hole 15, at least one second fixing hole 16 and at least one bolt (not shown in the figure), the first fixing hole 15 passes through the first half gear 11, and the center axes of the first fixing hole 15 and the first half gear 11 have a second preset distance, the second fixing hole 16 passes through the second half gear 12, and the center axes of the second fixing hole 16 and the second half gear 12 have a second preset distance, and the threaded portion of the bolt passes through the first fixing hole 15 and the second fixing hole 16 in sequence and connects the first half gear 11 and the second half gear 12.

[0062] It can be understood that since the threaded portion of the bolt passes through the first fixing hole 15 on the first half gear 11 and the second fixing hole 16 on the second half gear 12 in sequence, the first half gear 11 and the second half gear 12 can be realized as an integral non-metallic gear 1 using the bolts, thereby ensuring the stable generation of the electrical signal of the coil 3, while also facilitating disassembly, assembly and maintenance, and being more convenient to use.

[0063] It should be noted that the first fixing hole 15 and the second fixing hole 16 are used to cooperate with bolts to connect the first half gear 11 and the second half gear 12. The first fixing hole 15 and the second fixing hole 16 are threaded parts of the adapter bolts. The specific type of the bolt can be set according to actual needs and is not limited. The bolt cooperates with the nut to achieve a clamping and fixing effect.

[0064] The second preset distance is smaller than the first preset distance, that is, the bolt is located on a side (inner side) of the coil 3 close to the central axis of the non-metallic gear 1 .

[0065] The number of bolts, first fixing holes 15 and second fixing holes 16 corresponds one to one. For example, the number of bolts, first fixing holes 15 and second fixing holes 16 can be set to one, two, three, four, five, six, etc., without limitation.

[0066] like Figure 2 As shown, in some embodiments, the non-metallic gear 1 also includes: a protruding shaft 17, which is arranged on the side of the first half gear 11 away from the second half gear 12, and the central axis of the protruding shaft 17 coincides with the central axis of the first half gear 11, and a conductive ring is sleeved on the protruding shaft 17.

[0067] It can be understood that since the protruding shaft 17 is arranged on the side of the first half gear 11 away from the second half gear 12, and the central axis of the protruding shaft 17 coincides with the central axis of the first half gear 11, the conductive ring is sleeved on the protruding shaft 17, so that the conductive ring can be arranged on the first half gear 11 using the protruding shaft 17, thereby utilizing the conductive ring to stabilize the electrical signal transmitted by the transmission coil 3 to the monitoring module.

[0068] It should be noted that the protruding shaft 17 is used to arrange the conductive ring of the slip ring 6, and the specific type of the protruding shaft 17 can be set according to actual needs and is not limited to this.

[0069] like Figure 2 As shown, in some embodiments, the non-metallic gear 1 also includes: a protruding sleeve 18, an axial hole 19, a rotating shaft (not shown in the figure), at least one third fixing hole 110 and at least one fixing screw (not shown in the figure), the protruding sleeve 18 is arranged on the side of the second half gear 12 away from the first half gear 11, and the central axis of the protruding sleeve 18 coincides with the central axis of the second half gear 12, the axial hole 19 penetrates the protruding sleeve 18 and the second half gear 12 along the axial direction of the second half gear 12, the rotating shaft is rotatably arranged, and one end of the rotating shaft is arranged in the axial hole 19, the third fixing hole 110 penetrates the protruding sleeve 18 along the radial direction of the second half gear 12, and the threaded portion of the fixing screw is threadedly arranged in the third fixing hole 110 and abuts against the rotating shaft.

[0070] It can be understood that since the axial hole 19 penetrates the protruding sleeve 18 and the second half gear 12 along the axial direction of the second half gear 12, and one end of the rotating shaft is arranged in the axial hole 19, the third fixing hole 110 penetrates the protruding sleeve 18 along the radial direction of the second half gear 12, and the threaded portion of the fixing screw is threadedly arranged in the third fixing hole 110 and abuts against the rotating shaft, so that the rotating shaft can be connected to the second half gear 12 by abutting the fixing screw, thereby ensuring the stable rotation of the non-metallic gear 1, and at the same time facilitating disassembly and maintenance, and more convenient to use.

[0071] It should be noted that the protruding sleeve 18 is used to increase the contact area between the second half gear 12 and the rotating shaft and to facilitate the arrangement of fixing screws. The specific type of the protruding sleeve 18 can be set according to actual needs and is not limited to this.

[0072] The shaft hole 19 is used to arrange one end of the rotating shaft, and the size of the shaft hole 19 is adapted to the rotating shaft. The third fixing hole 110 is used to arrange a fixing screw, and the size of the third fixing hole 110 is adapted to the fixing screw.

[0073] The specific type of the rotating shaft can be set according to actual needs and is not limited thereto. The rotating shaft can be provided with a boss structure, and accordingly, a groove adapted to the boss is provided in the shaft hole 19, and the relative rotation between the rotating shaft and the second half gear 12 can be prevented by the cooperation of the boss and the groove.

[0074] The fixing screw is used to fix the rotating shaft and the second half gear 12. The specific type of the fixing screw can be set according to actual needs and is not limited to this.

[0075] The number of fixing screws and the number of third fixing holes 110 correspond to each other. For example, the number of fixing screws and the number of third fixing holes 110 can be set to one, two, three, four, five, six, etc., without limitation.

[0076] like Figure 3 As shown, in some embodiments, the system also includes: at least one first wire 7, the first wire 7 is connected in series between the conductive ring and the output end of the coil 3, and the input end of the first wire 7 is connected to the output end of the coil 3, and the output end of the first wire 7 is connected to the conductive ring.

[0077] It can be understood that since the input end of the first wire 7 is connected to the output end of the coil 3, and the output end of the first wire 7 is connected to the conductive ring, the conductive ring and the output end of the coil 3 can be connected by the first wire 7, thereby ensuring that the coil 3 can stably transmit electrical signals to the monitoring module.

[0078] It should be noted that the first wire 7 is used to conduct the path between the conductive ring and the output end of the coil 3. The specific type of the first wire 7 can be set according to actual needs and is not limited. The first wire 7 can be arranged inside or outside the non-metallic gear 1.

[0079] like Figure 3 As shown, in some embodiments, the system also includes: at least one second wire 8, the second wire 8 is connected in series between the brush and the input end of the monitoring module, and the input end of the second wire 8 is connected to the output end of the brush, and the output end of the second wire 8 is connected to the input end of the monitoring module.

[0080] It can be understood that since the input end of the second wire 8 is connected to the output end of the brush, and the output end of the second wire 8 is connected to the input end of the monitoring module, the second wire 8 can be used to achieve conduction between the brush and the input end of the monitoring module, thereby ensuring that the coil 3 can stably transmit electrical signals to the monitoring module.

[0081] It should be noted that the second wire 8 is used to conduct the path between the brush and the input end of the monitoring module. The specific type of the second wire 8 can be set according to actual needs and is not limited to this.

[0082] In the description of the present disclosure, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, in the description of the present disclosure, unless otherwise specified, "plurality" means two or more.

[0083] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code that includes one or more executable instructions for implementing the steps of a specific logical function or process, and the scope of the preferred embodiments of the present disclosure includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by those skilled in the art to which the embodiments of the present disclosure belong.

[0084] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0085] Although the embodiments of the present disclosure have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present disclosure. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present disclosure.

Claims

1. An induction power generation system based on magnetic resistance change, characterized in that: include: A metal gear, a non-metal gear, at least one coil and a monitoring module; The metal gear and the non-metal gear are respectively rotatably arranged and mesh with each other; The coil is disposed on the non-metallic gear, and a first preset distance exists between the coil and a central axis of the non-metallic gear, and the coil is used to generate an electrical signal based on a change in the distance from the metal gear when the metal gear and the non-metallic gear rotate synchronously; The input end of the monitoring module is connected to the output end of the coil, and the monitoring module is used to monitor the structural state of the metal gear according to the change of the electrical signal output by the coil.

2. The induction power generation system based on magnetic resistance change according to claim 1, characterized in that: The system further comprises: At least one permanent magnet is disposed on the non-metallic gear, and the permanent magnet is located at an end of the coil away from the central axis of the non-metallic gear.

3. The induction power generation system based on magnetic resistance change according to claim 1, characterized in that: The system further comprises: An iron core is arranged on the non-metallic gear, and the central axis of the iron core and the non-metallic gear has the first preset distance, and the coil is sleeved on the iron core.

4. The induction power generation system based on magnetic resistance change according to claim 1, characterized in that: The system further comprises: A load, wherein an input end of the load is connected to an output end of the coil.

5. The induction power generation system based on magnetic resistance change according to any one of claims 1 to 4, characterized in that: The system further comprises: Fixed bearings and slip rings; Wherein, the conductive ring of the slip ring is arranged on the non-metallic gear, and the central axis of the conductive ring coincides with the central axis of the non-metallic gear, and the conductive ring is connected to the output end of the coil; The brush of the slip ring is arranged on the fixed support, and the brush is connected to the input end of the monitoring module.

6. The induction power generation system based on magnetic resistance change according to claim 5, characterized in that: The non-metallic gear comprises: a first half gear and a second half gear, wherein the first half gear and the second half gear are detachably connected along the axial direction of the non-metallic gear; Wherein, at least one first groove is provided on the side of the first half gear close to the second half gear, and the first groove and the central axis of the first half gear have the first preset distance; At least one second groove is provided on a side of the second half gear close to the first half gear, and the second groove and the central axis of the second half gear have the first preset distance; The first groove and the second groove are arranged opposite to each other and form a receiving groove, and the coil is arranged in the receiving groove; The conductive ring is arranged on a side of the first half gear away from the second half gear, and a central axis of the conductive ring coincides with a central axis of the first half gear.

7. The induction power generation system based on magnetic resistance change according to claim 6, characterized in that: The non-metallic gear also includes: at least one first fixing hole, wherein the first fixing hole passes through the first half gear, and a second preset distance exists between the first fixing hole and a central axis of the first half gear; at least one second fixing hole, wherein the second fixing hole passes through the second half gear, and a second preset distance exists between the second fixing hole and a central axis of the second half gear; At least one bolt, a threaded portion of the bolt sequentially passes through the first fixing hole and the second fixing hole to connect the first half gear and the second half gear.

8. The induction power generation system based on magnetic resistance change according to claim 6, characterized in that: The non-metallic gear also includes: A protruding shaft is arranged on a side of the first half gear away from the second half gear, and a central axis of the protruding shaft coincides with a central axis of the first half gear, and the conductive ring is sleeved on the protruding shaft.

9. The induction power generation system based on magnetic resistance change according to claim 6, characterized in that: The non-metallic gear also includes: a protruding sleeve, wherein the protruding sleeve is arranged on a side of the second half gear away from the first half gear, and a central axis of the protruding sleeve coincides with a central axis of the second half gear; an axial hole, wherein the axial hole penetrates the protruding sleeve and the second half gear along the axial direction of the second half gear; A rotating shaft, the rotating shaft is rotatably arranged, and one end of the rotating shaft is arranged in the shaft hole; at least one third fixing hole, the third fixing hole penetrating the protruding sleeve along the radial direction of the second half gear; At least one fixing screw, the threaded portion of the fixing screw is threadedly disposed in the third fixing hole and abuts against the rotating shaft.

10. The induction power generation system based on magnetic resistance change according to claim 5, characterized in that: The system further comprises: At least one first wire, wherein the first wire is connected in series between the conductive ring and the output end of the coil, and an input end of the first wire is connected to an output end of the coil, and an output end of the first wire is connected to the conductive ring; and / or, At least one second wire is connected in series between the brush and the input end of the monitoring module, the input end of the second wire is connected to the output end of the brush, and the output end of the second wire is connected to the input end of the monitoring module.

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