Remote monitoring device for vibration of wind driven generator

Abstract

The invention discloses a remote monitoring device for vibration of a wind driven generator, and relates to the technical field of wind driven generators, the remote monitoring device comprises a main body, a power conversion device, a main shaft used for connecting the main body and the power conversion device, and a monitoring assembly, the monitoring assembly comprises a monitoring ring and a magnetic ring, and the magnetic ring sleeves the outer wall of the main shaft; the monitoring ring and the magnetic ring are located on the same horizontal plane, and the monitoring ring is in clearance connection with the main shaft; according to the invention, by arranging the monitoring assembly composed of the monitoring ring, the magnetic ring, the sliding block and the like, the vibration condition of the main shaft can be sensitively captured in real time based on the change of the repulsive force between the magnetic ring and the magnetic block, compared with a complex electronic monitoring system, the fault probability is reduced, the operation reliability is improved, the installation and maintenance are convenient, and the cost is reduced. And the magnetic ring and the magnetic block adopt non-contact monitoring, so that the monitoring process does not generate extra interference on normal rotation of the main shaft and operation of the wind driven generator.

Description

Technical Field

[0001] This invention relates to the field of wind turbine technology, specifically to a remote monitoring device for wind turbine vibration. Background Technology

[0002] With the increasing global demand for clean energy, wind power has been widely used as a clean and renewable energy technology.

[0003] During long-term operation, the main shaft is a key component, and its operating status directly affects the power generation efficiency and service life of the wind turbine.

[0004] Main shaft vibration is an important indicator reflecting the operating status of wind turbines. When abnormal vibration occurs in the main shaft, it may indicate problems such as bearing wear, gearbox failure, and blade imbalance. If these problems are not detected and addressed in time, they may lead to equipment damage or even safety accidents.

[0005] Currently, most wind turbine main shaft vibration monitoring systems employ complex electronic monitoring systems, such as monitoring devices based on electronic components like acceleration sensors and displacement sensors.

[0006] While these electronic monitoring systems offer high accuracy, they also suffer from several drawbacks. Firstly, electronic components are susceptible to electromagnetic interference, changes in ambient temperature, humidity, and other factors, leading to inaccurate monitoring data, misjudgments, and a high probability of malfunction. Secondly, complex electronic monitoring systems have intricate structures, making installation and debugging difficult and maintenance costly, requiring specialized technicians for operation and maintenance.

[0007] In view of the above, this application is hereby submitted. Summary of the Invention

[0008] The purpose of this invention is to provide a remote monitoring device for the vibration of wind turbine generators to solve the problems mentioned in the background art.

[0009] To address the aforementioned technical problems, this invention provides a remote monitoring device for wind turbine vibration, comprising a main body, a power conversion device, a main shaft for connecting the main body and the power conversion device, and a monitoring component. The monitoring component includes a monitoring ring and a magnetic ring. The magnetic ring is sleeved on the outer wall of the main shaft. The monitoring ring and the magnetic ring are located on the same horizontal plane. The monitoring ring is gap-connected to the main shaft. Multiple sliders are radially slidable on the monitoring ring. A first spring is provided between the sliders and the monitoring ring. A magnetic block with the same pole as the magnetic ring is connected to the front of the slider, and a triggering component is connected to the back of the slider.

[0010] Furthermore, the monitoring ring has multiple radially extending grooves arranged in a circumferential array, the slider is slidably connected to the monitoring ring through the grooves, and a limit block is connected to the back of the slider.

[0011] Furthermore, side grooves are provided on both sides of the slide groove, and ball bearings adapted to the side grooves are rotatably connected to both sides of the slider.

[0012] Furthermore, the triggering component includes a monitoring box, which has a monitoring cavity. Multiple linear switches are installed in the monitoring cavity. Each linear switch is connected to one side of a connecting piece. One end of the connecting piece is connected to a pull rope, and the other end of the pull rope is fixedly connected to a limit block. A second spring is connected to the other side of the connecting piece.

[0013] Furthermore, the triggering component also includes a processor, which is fixedly connected in the monitoring cavity and electrically connected to a plurality of linear switches respectively.

[0014] Furthermore, an external antenna is provided on the outside of the main body, the processor is electrically connected to the external antenna, and a wind vane and a three-cup anemometer are provided on the external antenna.

[0015] Furthermore, it also includes a wind turbine and a bearing. The wind turbine is located on the front of the main body and is fixedly connected to the front of the main shaft. The bearing is fixedly connected in the main body. The main shaft is inserted into the bearing. The monitoring component is parallel to the bearing and connected with a gap.

[0016] Furthermore, the power conversion device includes a gearbox, a generator, a transmission line, and a power electronic system.

[0017] Furthermore, it also includes a monitoring frame, which is equipped with two mounting brackets located on both sides of the monitoring ring and fixedly connected to the monitoring ring.

[0018] Compared with the prior art, the beneficial effects of the present invention are: In this invention, by setting up a monitoring component consisting of a monitoring ring, a magnetic ring, a slider, etc., the vibration of the main shaft can be captured in real time and sensitively based on the change of repulsive force between the magnetic ring and the magnetic block. Compared with complex electronic monitoring systems, this reduces the probability of failure, improves operational reliability, and is easy to install and maintain. Furthermore, the non-contact monitoring between the magnetic ring and the magnetic block ensures that the monitoring process will not cause additional interference to the normal rotation of the main shaft and the operation of the wind turbine.

[0019] In this invention, by creating multiple radially extending grooves and sliders in a circumferential array on the monitoring ring, when a slider in a certain direction triggers the triggering component, the direction of spindle vibration and possible fault location can be preliminarily determined, providing maintenance personnel with accurate fault information, improving maintenance efficiency, and reducing downtime and costs.

[0020] In this invention, by opening side grooves on both sides of the slide groove and rotating and connecting suitable balls on both sides of the slider, the sliding friction of the slider in the slide groove is transformed into rolling friction, which reduces the loss of motion energy, improves the response speed and monitoring sensitivity of the slider to changes in repulsive force, and enhances the durability of the monitoring components and reduces maintenance costs.

[0021] In this invention, by setting up a triggering component consisting of a monitoring box, a linear switch, and a connecting piece, and by utilizing the different stiffness coefficients of the second spring and the first spring, the vibration amplitude of the spindle can be monitored in stages. This avoids false alarms caused by slight vibrations and can trigger alarms in a timely manner when the vibration amplitude is too large, thus ensuring the accuracy of fault warning.

[0022] In this invention, by setting an external antenna on the outside of the main body and installing a wind vane and a three-cup anemometer on it, and electrically connecting it to the processor, it is possible to obtain wind direction and wind speed information in real time, providing environmental data support for the operation of wind turbines. At the same time, combined with vibration information, the cause of failure can be analyzed more accurately. In addition, the data can be transmitted to a remote monitoring system efficiently and stably, making it convenient for staff to keep track of the equipment's operating status in real time. Attached Figure Description

[0023] Figure 1 A schematic diagram of the overall structure of a remote monitoring device for wind turbine vibration; Figure 2 An enlarged view of the main internal structure of a remote monitoring device for wind turbine vibration; Figure 3 for Figure 2 Cross-sectional view at point aa; Figure 4 A view of the structure of the monitoring component of a remote monitoring device for wind turbine vibration; Figure 5 Another perspective view of the monitoring component structure of a remote monitoring device for wind turbine vibration; Figure 6 An exploded view of the monitoring ring structure of a remote monitoring device for wind turbine vibration; Figure 7 This is a schematic diagram of the internal structure of the monitoring box of a remote monitoring device for wind turbine vibration.

[0024] In the diagram: 1. Main body; 11. Wind turbine; 12. Main shaft; 13. Bearing; 2. Power conversion device; 3. Monitoring frame; 31. Mounting bracket; 4. Monitoring ring; 41. Slide groove; 42. Slider; 43. Limiting block; 44. First spring; 45. Side groove; 46. Ball bearing; 5. Magnetic ring; 51. Magnetic block; 6. Monitoring box; 61. Monitoring cavity; 62. Processor; 63. Linear switch; 64. Connecting piece; 65. Pull rope; 66. Second spring; 67. External antenna. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0026] Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Please see Figure 1-7 The present invention provides a technical solution: A remote monitoring device for vibration of a wind turbine includes a main body 1, a power conversion device 2, a main shaft 12 for connecting the main body 1 and the power conversion device 2, and a monitoring component. It also includes a wind turbine 11 and a bearing 13. The wind turbine 11 is located on the front of the main body 1 and is fixedly connected to the front of the main shaft 12. The bearing 13 is fixedly connected in the main body 1, and the main shaft 12 is inserted into the bearing 13. The power conversion device 2 includes a gearbox, a generator, a transmission line, and a power electronic system. The input shaft of the gearbox is fixedly connected to the main shaft 12, and the output shaft of the gearbox is fixedly connected to the rotor of the generator. The power electronic system is located on the ground and includes a rectifier, a filter, and an inverter. The transmission line is used to connect the generator and the power electronic system.

[0028] After installation, the wind turbine 11 rotates under the action of wind. The wind turbine 11 is fixedly connected to the main shaft 12, so the rotation of the wind turbine 11 drives the main shaft 12 to rotate, converting wind energy into mechanical energy of the shaft.

[0029] The spindle 12 rotates within the bearing 13, which provides support and reduces friction, ensuring that the spindle 12 can rotate stably and smoothly.

[0030] The main shaft 12 is fixedly connected to the input shaft of the gearbox. The rotation of the main shaft 12 drives the input shaft of the gearbox to rotate. Through the speed change and torque increase of the gearbox, the output shaft of the gearbox rotates at a suitable speed.

[0031] The gearbox output shaft is fixedly connected to the generator rotor, thereby driving the generator rotor to rotate. The generator rotor rotates in the stator, and according to the principle of electromagnetic induction, an induced electromotive force is generated in the stator winding, which in turn generates alternating current, realizing the conversion of mechanical energy into electrical energy.

[0032] The alternating current (AC) generated by the generator is transmitted to the ground-based power electronic system via transmission lines. The rectifier in the power electronic system converts the AC to direct current (DC). The filter filters the DC to remove harmonics and other impurities, making the DC voltage more stable. Finally, the inverter converts the DC back into AC that meets the grid requirements and connects it to the grid via transmission lines, thus realizing the transmission and utilization of electrical energy.

[0033] The monitoring component includes a monitoring ring 4 and a magnetic ring 5. The magnetic ring 5 is sleeved on the outer wall of the main shaft 12. The monitoring ring 4 and the magnetic ring 5 are located on the same horizontal plane. The monitoring ring 4 is connected to the main shaft 12 with a gap. Multiple radially extending grooves 41 are formed in a circumferential array on the monitoring ring 4. The slider 42 is slidably connected to the monitoring ring 4 through the grooves 41. A first spring 44 is provided between the slider 42 and the monitoring ring 4. A limit block 43 is connected to the back of the slider 42. A magnetic block 51 with the same pole as the magnetic ring 5 is connected to the front of the slider 42. A trigger component is connected to the back of the slider 42.

[0034] When the wind turbine is running normally, the main shaft 12 drives the magnetic ring 5 to rotate synchronously.

[0035] Since the monitoring ring 4 is connected to the main shaft 12 with a gap, the magnetic ring 5 and the magnetic block 51 connected to the front of the slider 42 have the same pole. According to the principle that like poles repel each other, a repulsive force is generated between the magnetic ring 5 and the magnetic block 51.

[0036] Under normal operating conditions, the repulsive force is in balance with the elastic force of the first spring 44, so that the slider 42 maintains a relatively stable position in the groove 41 and the triggering component will not be triggered.

[0037] When the main shaft 12 vibrates, the magnetic ring 5 is displaced along with the vibration of the main shaft 12, which causes the distance between the magnetic ring 5 and the magnetic block 51 to change, and the repulsive force also changes accordingly.

[0038] The change in repulsive force disrupts the original force balance of slider 42. If the repulsive force increases, slider 42 overcomes the elastic force of the first spring 44 and slides along the groove 41 in a direction away from the main shaft 12; if the repulsive force decreases, slider 42 remains stationary.

[0039] When slider 42 slides, the trigger component connected to its back side will be triggered.

[0040] Once the triggering component is activated, the monitoring personnel will be able to detect abnormal vibration in the wind turbine main shaft 12, and thus promptly inspect and maintain the equipment.

[0041] The monitoring component is mainly composed of a monitoring ring 4, a magnetic ring 5, a slider 42, a first spring 44, a limit block 43, a magnetic block 51, and a triggering component. These components are all common mechanical and magnetic elements, and the structural design is simple and clear.

[0042] Compared to complex electronic monitoring systems, its mechanical structure reduces the possibility of electronic component failure and lowers the probability of misjudgment due to factors such as electromagnetic interference and changes in ambient temperature. It has high overall operational reliability and is easy to install, maintain, and repair.

[0043] By detecting the change in repulsive force between the magnetic ring 5 and the magnetic block 51, the minute vibrations of the main shaft 12 can be captured in real time. The change in repulsive force will be quickly reflected in the position movement of the slider 42, thereby triggering the trigger component.

[0044] This physical principle-based monitoring method has a fast response speed and high sensitivity, and can promptly detect abnormal vibration of the wind turbine main shaft 12, providing strong support for equipment fault early warning and helping to avoid equipment damage and safety accidents caused by abnormal vibration.

[0045] The monitoring ring 4 is connected to the main shaft 12 with a gap, and the magnetic ring 5 and the magnetic block 51 interact through the magnetic field, which is a non-contact monitoring method.

[0046] This monitoring method will not generate additional frictional resistance or mechanical interference to the normal rotation of the main shaft 12 and the operation of the wind turbine, and will not affect the performance and efficiency of the equipment. At the same time, it reduces the wear of the monitoring device itself and extends its service life.

[0047] Since the monitoring ring 4 has multiple radially extending grooves 41 and sliders 42 arranged in a circular array, when the slider 42 in a certain direction triggers the triggering component, the direction of vibration of the main shaft 12 and the possible fault location can be preliminarily determined by analyzing the triggering position. This provides maintenance personnel with more accurate fault information, facilitates quick location of the fault point, improves maintenance efficiency, and reduces equipment downtime and maintenance costs.

[0048] The monitoring component is connected to the bearing 13 with a gap in parallel.

[0049] The monitoring component is set parallel to the bearing 13, and the two are in the same spatial dimension, which can more accurately reflect the vibration state of the bearing 13 and the spindle 12.

[0050] When the bearing 13 experiences abnormal conditions such as wear or loosening, resulting in vibration, the vibration impact on the monitoring component is highly consistent with the actual vibration trend of the bearing 13 and the spindle 12 due to the parallel arrangement, thus avoiding monitoring errors caused by angular deviations.

[0051] The gap connection prevents the monitoring components from being subjected to additional mechanical stress interference due to direct contact with the bearing 13 or the main shaft 12, ensuring that the monitoring data accurately reflects the vibration of the wind turbine and provides a reliable basis for fault diagnosis.

[0052] Side grooves 45 are provided on both sides of the slide groove 41, and ball bearings 46 that are adapted to the side grooves 45 are rotatably connected to both sides of the slider 42.

[0053] When the traditional slider 42 slides in the groove 41, it mainly relies on the sliding friction generated by the plane contact. This friction method has a large resistance, which will affect the response speed and movement accuracy of the slider 42.

[0054] Side grooves 45 are opened on both sides of the slide 41, and suitable balls 46 are rotatably connected on both sides of the slider 42 to convert sliding friction into rolling friction.

[0055] The ball 46 rolls in the side groove 45, and its rolling friction coefficient is much smaller than the sliding friction coefficient, which makes the slider 42 move more smoothly in the groove 41.

[0056] This not only reduces energy loss during the movement of slider 42, but also makes slider 42 respond more quickly to changes in the repulsive force between magnetic ring 5 and magnetic block 51, thereby improving the timeliness of the monitoring component in monitoring the vibration of the wind turbine main shaft 12.

[0057] Because the cooperation between the ball 46 and the side groove 45 greatly reduces frictional resistance, even if the main shaft 12 vibrates slightly, causing a slight change in the repulsive force between the magnetic ring 5 and the magnetic block 51, the slider 42 can react and generate displacement immediately.

[0058] This highly sensitive design enables the monitoring components to capture extremely weak vibration signals from the wind turbine main shaft 12, helping to detect potential equipment failures earlier.

[0059] When bearing 13 experiences early wear and generates minor vibrations, the conventional sliding friction slider 42 may not respond in time. However, the slider 42 with a ball bearing 46 structure can move quickly and trigger the triggering component, giving more time for equipment maintenance.

[0060] Rolling friction causes less wear on the surface of components compared to sliding friction.

[0061] When the ball 46 rolls in the side groove 45, the contact area with the side groove 45 is small and the wear is uniform, making it less likely to produce serious scratches and grooves on the surface of the side groove 45 and the slider 42.

[0062] This significantly extends the service life of the slide 41, slider 42, and ball 46, reducing performance degradation and the frequency of failures caused by component wear.

[0063] In addition, the presence of the ball bearing 46 can also disperse the pressure on the slider 42 during movement, avoid local stress concentration, further enhance the structural strength and durability of the entire monitoring component, and reduce maintenance and replacement costs.

[0064] It also includes a monitoring frame 3, which has two mounting brackets 31 located on both sides of the monitoring ring 4 and fixedly connected to the monitoring ring 4.

[0065] The design of monitoring frame 3 helps to optimize the overall layout of the wind turbine vibration monitoring device.

[0066] The monitoring frame 3 can isolate cables, sensors and other devices or components of other parts of the wind turbine from the outside, preventing them from affecting the operation of the monitoring components, avoiding messy wiring, and reducing the risk of failure caused by wire entanglement, friction and other reasons.

[0067] At the same time, it also helps staff to quickly identify and inspect various components, improving the maintainability and safety of the equipment.

[0068] The triggering component includes a monitoring box 6, which has a monitoring cavity 61. Multiple linear switches 63 are installed in the monitoring cavity 61. The linear switches 63 are connected to one side of a connecting piece 64. One end of the connecting piece 64 is connected to a pull rope 65. The other end of the pull rope 65 is fixedly connected to a limit block 43. A second spring 66 is connected to the other side of the connecting piece 64. The triggering component also includes a processor 62, which is fixedly connected in the monitoring cavity 61 and electrically connected to a plurality of linear switches 63 respectively.

[0069] When the wind turbine main shaft 12 is running normally, because the spring coefficient of the second spring 66 is lower than that of the first spring 44, the slider 42 remains in a stable position under the combined action of the repulsive force between the magnetic ring 5 and the magnetic block 51 and the elastic force of the first spring 44.

[0070] At this time, the pull rope 65 is in a taut state, and the connecting piece 64, under the tension of the pull rope 65, overcomes the elastic force of the second spring 66, so that the linear switch 63 is in an untriggered initial state.

[0071] Although the second spring 66 is squeezed by the connecting piece 64, it cannot push the connecting piece 64 to move due to the tension of the pull rope 65. The linear switch 63 will not generate an alarm signal, and the entire triggering assembly is in a stable standby state.

[0072] When the main shaft 12 vibrates, the repulsive force between the magnetic ring 5 and the magnetic block 51 changes, and the slider 42 becomes unbalanced and begins to slide away from the main shaft 12.

[0073] As the slider 42 moves, the limiting block 43 connected to its back causes the pull rope 65 to loosen.

[0074] At this point, the elastic force of the first spring 44 no longer becomes the resistance to the second spring 66 pushing the connecting piece 64. However, since the change in repulsive force is small, i.e. the vibration amplitude is small, the displacement generated by the second spring 66 pushing the connecting piece 64 is insufficient to trigger the linear switch 63.

[0075] Under the action of the second spring 66, the connecting piece 64 only moves slightly, and the linear switch 63 remains in an untriggered state, so it will not transmit an alarm signal to the processor 62, thus avoiding false alarms caused by slight vibration.

[0076] When the vibration amplitude of the main shaft 12 is too large, the repulsive force between the magnetic ring 5 and the magnetic block 51 changes significantly, the slider 42 is displaced in a direction away from the main shaft 12, and the pull rope 65 is greatly relaxed.

[0077] At this time, the second spring 66 obtains enough space and force to push the connecting piece 64, causing the connecting piece 64 to squeeze the linear switch 63, resulting in the internal circuit of the linear switch 63 being closed and generating an electrical signal.

[0078] Since the processor 62 is electrically connected to multiple linear switches 63, the electrical signal is immediately transmitted to the processor 62.

[0079] After receiving the electrical signal, the processor 62 processes and analyzes the signal, confirms that the spindle 12 has experienced a large-scale abnormal vibration, and then transmits the alarm signal to the remote monitoring system through a specific communication line.

[0080] After receiving the alarm signal remotely, the staff can promptly learn that there is a serious vibration problem on the main shaft 12 of the wind turbine, and thus quickly take corresponding maintenance measures to prevent the fault from worsening.

[0081] An external antenna 67 is provided on the outside of the main body 1. The processor 62 is electrically connected to the external antenna 67. A wind vane and a three-cup anemometer are provided on the external antenna 67.

[0082] The external antenna 67 is mainly used to send out the data processed by the processor 62 so that the remote monitoring system can receive the relevant information.

[0083] It transmits information such as wind direction, wind speed, and vibration of the main shaft 12 to a remote receiving device in the form of electromagnetic waves, thus realizing wireless data transmission.

[0084] A wind vane consists of an arrow that can rotate freely around a vertical axis and a tail fin. The wind exerts a force on the tail fin, causing the arrow to always point in the direction of the wind.

[0085] The wind vane converts wind direction information into electrical signals through mechanical or electronic sensors and transmits them to the processor 62, which can process and record the wind direction data.

[0086] The three-cup anemometer consists of three hemispherical or conical cups fixed on a horizontal support. The support rotates around a vertical axis. When the wind blows, the cups are rotated by the wind force, and their rotation speed is proportional to the wind speed.

[0087] The sensor inside the anemometer detects the rotation speed of the cup and converts it into an electrical signal, which is then transmitted to the processor 62. The processor 62 converts the electrical signal into a corresponding wind speed value according to a pre-set algorithm, thereby realizing the measurement and data acquisition of wind speed.

[0088] The wind vane and three-cup anemometer can acquire wind direction and speed information in real time, providing comprehensive environmental data support for the operation of wind turbines.

[0089] This data helps staff understand the status of wind resources, rationally plan the operation strategy of wind turbines, and improve power generation efficiency.

[0090] By combining the vibration information of the main shaft 12 detected by the triggering component with wind direction and wind speed data, staff can more accurately analyze the cause of the wind turbine failure.

[0091] When the main shaft 12 vibrates abnormally, by comparing the wind direction and wind speed at that time, it can be determined whether the vibration is caused by extreme wind conditions. This provides a stronger basis for fault diagnosis and maintenance, helps to quickly locate and solve problems, reduces downtime, and lowers maintenance costs.

[0092] The external antenna 67 is specifically designed for data transmission. Compared to the internal antenna, it may have better signal reception and transmission performance, enabling it to transmit the data processed by the processor 62 to the remote monitoring system more stably and efficiently, ensuring timely and accurate data transmission, and facilitating staff to monitor the operating status of the wind turbine in real time.

Claims

1. A remote monitoring device for wind turbine vibration, comprising a main body (1), a power conversion device (2), a main shaft (12) for connecting the main body (1) and the power conversion device (2), and monitoring components, characterized in that: The monitoring component includes a monitoring ring (4) and a magnetic ring (5). The magnetic ring (5) is sleeved on the outer wall of the main shaft (12). The monitoring ring (4) and the magnetic ring (5) are located on the same horizontal plane. The monitoring ring (4) is connected to the main shaft (12) with a gap. Multiple sliders (42) are arranged radially on the monitoring ring (4). A first spring (44) is arranged between the slider (42) and the monitoring ring (4). A magnetic block (51) with the same pole as the magnetic ring (5) is connected to the front of the slider (42). A trigger component is connected to the back of the slider (42).

2. The wind turbine vibration remote monitoring device as described in claim 1, characterized in that: The monitoring ring (4) has multiple radially extending grooves (41) arranged in a circular array. The slider (42) is slidably connected to the monitoring ring (4) through the grooves (41). The back of the slider (42) is connected to a limit block (43).

3. The wind turbine vibration remote monitoring device as described in claim 2, characterized in that: The slide groove (41) has side grooves (45) on both sides, and the slider (42) is rotatably connected to the side grooves (45) with ball bearings (46) that are adapted to the side grooves (45).

4. The wind turbine vibration remote monitoring device as described in claim 3, characterized in that: The triggering component includes a monitoring box (6), which has a monitoring cavity (61) and multiple linear switches (63) installed in the monitoring cavity (61). The linear switches (63) are connected to one side of a connecting piece (64). One end of the connecting piece (64) is connected to a pull rope (65), and the other end of the pull rope (65) is fixedly connected to a limit block (43). The other side of the connecting piece (64) is connected to a second spring (66).

5. The wind turbine vibration remote monitoring device as described in claim 4, characterized in that: The triggering component also includes a processor (62), which is fixedly connected in the monitoring cavity (61) and electrically connected to a plurality of linear switches (63).

6. The wind turbine vibration remote monitoring device as described in claim 5, characterized in that: An external antenna (67) is provided on the outside of the main body (1). The processor (62) is electrically connected to the external antenna (67). A wind vane and a three-cup anemometer are provided on the external antenna (67).

7. The wind turbine vibration remote monitoring device as described in claim 6, characterized in that: It also includes a wind turbine (11) and a bearing (13). The wind turbine (11) is located on the front of the main body (1) and fixedly connected to the front of the main shaft (12). The bearing (13) is fixedly connected in the main body (1). The main shaft (12) is inserted into the bearing (13). The monitoring component is parallel to the bearing (13) and connected with a gap.

8. The wind turbine vibration remote monitoring device as described in claim 7, characterized in that: The power conversion device (2) includes a gearbox, a generator, a transmission line, and a power electronic system.

9. The wind turbine vibration remote monitoring device as described in claim 8, characterized in that: It also includes a monitoring frame (3), in which a mounting bracket (31) is provided. There are two mounting brackets (31), located on both sides of the monitoring ring (4), and fixedly connected to the monitoring ring (4).

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