A vibration-based multi-dimensional fan blade self-diagnosis device and method

Abstract

This invention discloses a vibration-based self-diagnostic device and method for multi-dimensional wind turbine blades, specifically relating to the field of wind turbine blade diagnostic technology. The device includes a fixed base, a self-diagnostic component, and a limiting component. The fixed base is detachably mounted on the multi-dimensional wind turbine using bolts. The self-diagnostic component is arranged on the fixed base. The self-diagnostic component includes a connecting seat, a connecting groove, a connecting block, spring A, and a vibration sensor. The connecting seat is connected to the fixed base via the limiting component. A connecting groove is formed on the side of the connecting seat away from the fixed base. The connecting block slides through the connecting groove and contacts the multi-dimensional wind turbine blade. Several springs A are arranged in a linear array within the connecting groove, with both ends of spring A fixedly connected to the inner wall of the connecting groove and the connecting seat, respectively. The vibration sensor is fixedly mounted on the connecting seat. This invention has a reasonable structural design, enabling automatic diagnosis of multi-dimensional wind turbine blades with high diagnostic efficiency. It is also applicable to multi-dimensional wind turbine blades of different thicknesses, demonstrating strong adaptability.

Description

Technical Field

[0001] This invention relates to the field of wind turbine blade diagnostic technology, and more specifically, to a multi-dimensional wind turbine blade self-diagnosis device and method based on vibration. Background Technology

[0002] A wind turbine (or simply wind turbine) is a generator set driven by wind power. Its core components include blades, generators, and towers. By converting the kinetic energy of wind into electrical energy, wind turbines are key equipment in wind power plants. They achieve distributed power generation through independent operation and are widely used in the field of renewable energy. In the field of wind turbine technology, multi-dimensional wind turbines usually refer to composite equipment with multiple functions.

[0003] A diagnostic device, as disclosed in Chinese Utility Model Patent Publication No. CN221595638U, includes: an input interface connector, a first memory, at least one output interface connector, and a controller. The input interface connector is used to connect to the corresponding interface of a faulty device. The first memory is electrically connected to the input interface connector and is used to store fault log data of the faulty device read through the input interface connector. The at least one output interface connector is signal-connected to the first memory and is used to output the fault log data stored in the first memory to other electronic devices. The controller is signal-connected to the input interface connector, the first memory, and the output interface connector and is capable of controlling the usage mode of the diagnostic device. Under different usage modes, the first memory has different data transmission states with the output interface connector and the input interface connector.

[0004] Multi-dimensional wind turbine blades operate at high altitudes and in all weather conditions, and are frequently exposed to airborne media, atmospheric radiation, dust, lightning, heavy rain, and snow. This can easily cause vibration and damage to the blades. Therefore, diagnostic devices are needed to diagnose multi-dimensional wind turbine blades. However, existing diagnostic devices usually require manual operation and are difficult to automate. This not only increases the workload of staff but also reduces diagnostic efficiency, thus affecting the effectiveness of the diagnostic devices. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a self-diagnostic device for multi-dimensional wind turbine blades based on vibration. The technical problem to be solved by the present invention is that the existing diagnostic devices usually require manual operation during use, and it is difficult to automatically diagnose multi-dimensional wind turbine blades. This not only increases the workload of the staff, but also reduces the diagnostic efficiency, thereby affecting the effectiveness of the diagnostic device.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a vibration-based multi-dimensional wind turbine blade self-diagnosis device, comprising a fixed base, a self-diagnosis component, and a limiting component; the fixed base is detachably mounted on a multi-dimensional wind turbine by bolts; the self-diagnosis component is arranged on the fixed base; the self-diagnosis component includes a connecting seat, a connecting groove, a connecting block, spring A, and a vibration sensor; the connecting seat is connected to the fixed base through the limiting component; a connecting groove is formed on the side of the connecting seat away from the fixed base; the connecting block slides through the connecting groove and contacts the multi-dimensional wind turbine blade; a plurality of springs A are arranged in a linear array in the connecting groove, and the two ends of the springs A are respectively fixedly connected to the inner wall of the connecting groove and the connecting seat; the vibration sensor is fixedly mounted on the connecting seat.

[0007] As a further aspect of the present invention: the fixing seat is a right-angled trapezoidal structure, and the dimension of the fixing seat on the side closer to the connecting seat is larger than the dimension of the fixing seat on the side farther away from the connecting seat.

[0008] As a further aspect of the present invention: the connecting block has a right-angled triangular structure, the tip of the connecting block has an arc-shaped structure, and the inclined surface of the connecting block contacts the inner wall of the connecting groove.

[0009] As a further aspect of the present invention: the limiting component includes a horizontal limiting groove, a horizontal limiting block, a movable groove, a movable block, a vertical limiting groove, a vertical limiting rod, a spring B, a guide groove, a guide pin, a rotating plate, and a guide block; the fixed seat has a horizontal limiting groove on the side near the connecting seat; the horizontal limiting block slides through the horizontal limiting groove and is fixedly connected to the connecting seat; the fixed seat has a plurality of movable grooves arranged in a linear array on the side away from the connecting seat; the movable block slides through the movable groove via an abutment component; the horizontal limiting blocks are arranged in a linear array on the side away from the connecting seat. The device has several vertical limiting grooves; the vertical limiting rod is fixed on the movable block, and the end of the vertical limiting rod extends through the movable groove into the horizontal limiting groove and is inserted into the vertical limiting groove; the spring B is sleeved on the vertical limiting rod, and both ends of the spring B are fixedly connected to the inner wall of the movable groove and the movable block, respectively; at least one guide groove is provided on the movable block; the guide pin slides through the guide groove; one end of the rotating plate is rotatably disposed in the movable groove via a rotating shaft, and the other end is fixedly connected to the guide pin; the guide block is fixedly connected to the side of the vertical limiting rod away from the movable block.

[0010] As a further aspect of the present invention: the horizontal limiting block has a T-shaped structure, and the dimension of the horizontal limiting block on the side closer to the connecting seat is smaller than the dimension of the horizontal limiting block on the side farther from the connecting seat.

[0011] As a further aspect of the present invention: the guide groove is a parallelogram structure, and the side of the guide groove away from the vertical limiting rod is a concave end, and the end of the guide groove and the concave end are staggered.

[0012] As a further aspect of the present invention: the guide block has a frustum-shaped structure, and the diameter of the guide block on the side closer to the vertical limiting rod is adapted to the diameter of the vertical limiting rod and is larger than the diameter of the guide block on the side farther from the vertical limiting rod.

[0013] As a further aspect of the present invention: the abutting component includes an abutting groove, a hollow groove, an abutting block, a spring C, a sliding groove, and a sliding pin; at least one abutting groove is provided on the movable block; at least one hollow groove is provided in the movable groove; the abutting block is slidably inserted into the abutting groove and extends into the hollow groove; both ends of the spring C are fixedly connected to the inner wall of the abutting groove and the abutting block, respectively, and the elastic strength of the spring C is less than the elastic strength of the spring B; at least one sliding groove is provided in the hollow groove; the sliding pin is slidably inserted into the sliding groove and fixedly connected to the abutting block.

[0014] As a further aspect of the present invention: the sliding groove is an inclined structure, and the vertical distance between the end of the sliding groove away from the vertical limiting rod and the movable block is smaller than the vertical distance between the end of the sliding groove near the vertical limiting rod and the movable block.

[0015] In addition, the present invention also relates to a method for a multi-dimensional wind turbine blade self-diagnosis device based on vibration, comprising the following steps:

[0016] Step 1: Insert the horizontal limiting block into the horizontal limiting groove and slide the horizontal limiting block downward in the horizontal limiting groove until the bottom surface of the horizontal limiting block contacts the bottom wall of the horizontal limiting groove, so as to achieve lateral limiting of the fixed seat and the connecting seat.

[0017] Step 2: By pressing the movable block, the movable block slides in the movable groove, and the longitudinal positioning of the fixed seat and the connecting seat is achieved through the cooperation between the guide pin and the guide groove;

[0018] Step 3: The elastic force of spring C can counteract the force generated when spring B is stretched. Furthermore, the structure of the sliding groove can disperse and release force, so as to prevent the guide pin from being damaged by rapid impact with the inner wall of the guide groove under the elastic force of spring B.

[0019] Step 4: Install the mounting bracket onto the multi-dimensional fan using bolts, ensuring that the multi-dimensional fan blades can contact the inclined surface of the connecting block;

[0020] Step 5: When the multi-dimensional wind turbine blades vibrate, the multi-dimensional wind turbine blades come into contact with the inclined surface of the connecting block, which will cause the connecting block to vibrate. The vibration sensor can automatically diagnose the multi-dimensional wind turbine blades.

[0021] The beneficial effects of this invention are as follows:

[0022] This invention incorporates a self-diagnostic component. A limiting component mounts the connecting seat onto a fixed base, which is then bolted to a multi-dimensional fan. The multi-dimensional fan blades contact the inclined surface of the connecting block. During rotation, the multi-dimensional fan blades, being mostly inclined, press against the inclined surface of the connecting block, causing the connecting block to slide within the connecting groove. This causes spring A to contract. When the multi-dimensional fan blades contact the inclined surface of the connecting block, vibration occurs, which in turn causes vibration in the connecting block. This allows the vibration sensor to automatically diagnose the multi-dimensional fan blades. Compared to existing technologies, this invention has a reasonable structural design, enabling not only automatic diagnosis of multi-dimensional fan blades with high efficiency but also applicability to multi-dimensional fan blades of varying thicknesses, demonstrating strong adaptability.

[0023] This invention, through the setting of a limiting component, involves inserting a horizontal limiting block into a horizontal limiting groove and allowing the horizontal limiting block to slide downwards within the groove until its bottom surface contacts the bottom wall of the groove. At this point, pressing the movable block causes it to slide within the movable groove, causing the vertical limiting rod to move the guide block. This causes spring B to contract, resulting in the guide pin sliding from the top surface of the guide groove near the vertical limiting rod towards the top surface away from the vertical limiting rod. This allows the rotating plate to move along the inner wall of the movable groove via a rotating shaft. Rotate the guide pin until it slides to the top surface of the guide groove away from the end of the vertical limiting rod. Then, release the movable block. Under the elastic force of spring B, the movable block will slide in the opposite direction in the movable groove, causing the vertical limiting rod to drive the guide block to move in the opposite direction. This causes the guide pin to slide from the top surface of the guide groove away from the end of the vertical limiting rod towards the concave end of the guide groove until the guide pin slides to the concave end of the guide groove. At this time, the position of the vertical limiting rod in the vertical limiting groove is fixed, which facilitates the horizontal and vertical fixation of the fixed seat and the connecting seat.

[0024] This invention, by setting up an abutment component, allows the guide pin to slide from the bottom surface of the guide groove away from the vertical limiting rod towards the bottom surface of the guide groove near the vertical limiting rod. Because the elastic strength of spring C is less than that of spring B, the sliding pin will slide in the opposite direction, causing the abutment block to slide in the opposite direction within the abutment groove and the empty groove. This causes spring C to contract under force. The force generated by the contraction of spring C can interact with and cancel out the force generated by the extension of spring B, thereby reducing the sliding speed of the movable block in the movable groove. This prevents the guide pin from being damaged by rapid impact with the inner wall of the guide groove under the elastic force of spring B. Furthermore, since the sliding groove is an inclined structure, it can also disperse and release force. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a cross-sectional view of the overall structure of the present invention;

[0027] Figure 3 This is a cross-sectional view of the fixing base structure of the present invention;

[0028] Figure 4 This is an exploded sectional view of the self-diagnostic component structure of the present invention;

[0029] Figure 5 This is a partial sectional view of the structure of the present invention.

[0030] Figure 6 This is a schematic diagram of the active block structure of the present invention;

[0031] Figure 7 For the present invention Figure 2 Enlarged view of point A in the middle;

[0032] Figure 8 For the present invention Figure 7 Enlarged diagram of point B in the middle.

[0033] In the picture:

[0034] 1. Fixed base; 2. Self-diagnostic component; 3. Limiting component; 4. Abutment component; 201. Connecting base; 202. Connecting groove; 203. Connecting block; 204. Spring A; 205. Vibration sensor; 301. Horizontal limiting groove; 302. Horizontal limiting block; 303. Movable groove; 304. Movable block; 305. Vertical limiting groove; 306. Vertical limiting rod; 307. Spring B; 308. Guide groove; 309. Guide pin; 310. Rotating plate; 311. Guide block; 401. Abutment groove; 402. Empty groove; 403. Abutment block; 404. Spring C; 405. Sliding groove; 406. Sliding pin. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. 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.

[0036] like Figures 1 to 8As shown, this invention provides a vibration-based multi-dimensional wind turbine blade self-diagnosis device, including a fixed base 1, a self-diagnosis component 2, and a limiting component 3. The fixed base 1 is detachably mounted on a multi-dimensional wind turbine via bolts, wherein the multi-dimensional wind turbine is a Goldwind GWH204 series. The self-diagnosis component 2 is arranged on the fixed base 1. The self-diagnosis component 2 includes a connecting seat 201, a connecting groove 202, a connecting block 203, a spring A204, and a vibration sensor 205. The connecting seat 201 is connected to the fixed base 1 via the limiting component 3. A connecting groove 202 is formed on the side of the connecting seat 201 away from the fixed base 1. The connecting block 203 slides through the connecting groove 202 and contacts the multi-dimensional wind turbine blade. Several springs A204 are arranged in a linear array within the connecting groove 202, and both ends of the springs A204 are fixedly connected to the inner wall of the connecting groove 202 and the connecting seat 201, respectively. The vibration sensor... Vibration sensor 205 is detachably mounted on connector 201 using screws. The vibration sensor 205 is model RS-WZ1 / WZ1A / WZ1SP, which outputs signals wirelessly. Its data processing mechanism involves trend analysis and alarm management of the wirelessly transmitted data via an external server, generating reports and supporting real-time monitoring and historical data queries. The mounting base 1 has a right-angled trapezoidal structure, with the side of the mounting base 1 closer to connector 201 being larger than the side farther from connector 201, to enhance the connection strength between the mounting base 1 and connector 201. Connecting block 203 has a right-angled triangular structure with an arc-shaped tip. The inclined surface of connecting block 203 contacts the inner wall of connecting groove 202, allowing the connecting block 203 to contact the multi-dimensional fan blades while preventing it from moving out of connecting groove 202.

[0037] This invention incorporates a self-diagnostic component 2, which, through a limiting component 3, mounts the connecting seat 201 onto the fixed seat 1. The fixed seat 1 is then bolted onto the multi-dimensional fan, ensuring the multi-dimensional fan blades contact the inclined surface of the connecting block 203. During rotation, the multi-dimensional fan blades, being mostly inclined, press against the inclined surface of the connecting block 203, causing the connecting block 203 to slide within the connecting groove 202. This causes the spring A204 to contract under pressure. When the multi-dimensional fan blades contact the inclined surface of the connecting block 203, vibration occurs, which in turn causes the connecting block 203 to vibrate. This allows the vibration sensor 205 to automatically diagnose the multi-dimensional fan blades. Compared to existing technologies, this invention has a reasonable structural design, enabling not only automatic diagnosis of multi-dimensional fan blades with high efficiency but also applicability to multi-dimensional fan blades of varying thicknesses, demonstrating strong adaptability.

[0038] In a preferred embodiment, the limiting component 3 includes a horizontal limiting groove 301, a horizontal limiting block 302, a movable groove 303, a movable block 304, a vertical limiting groove 305, a vertical limiting rod 306, a spring B 307, a guide groove 308, a guide pin 309, a rotating plate 310, and a guide block 311; the fixed base 1 has a horizontal limiting groove 301 on the side near the connecting base 201; the horizontal limiting block 302 slides through the horizontal limiting groove 301 and is fixedly connected to the connecting base 201; the side of the fixed base 1 away from the connecting base 201 is linear. The array has three movable slots 303; the movable block 304 slides through the movable slot 303 via the abutment component 4; the horizontal limiting block 302 has three vertical limiting slots 305 arranged in a linear array on the side away from the connecting seat 201; the vertical limiting rod 306 is fixed on the movable block 304, and the end of the vertical limiting rod 306 extends through the movable slot 303 into the horizontal limiting slot 301 and is inserted into the vertical limiting slot 305; the spring B 307 is sleeved on the vertical limiting rod 306, and the two ends of the spring B 307 are respectively attached to the inner wall of the movable slot 303. The movable block 304 is fixedly connected to the guide plate 310; a guide groove 308 is provided on the movable block 304; a guide pin 309 is slidably inserted into the guide groove 308; one end of the rotating plate 310 is rotatably disposed in the movable groove 303 via a rotating shaft, and the other end is fixedly connected to the guide pin 309; the guide block 311 is fixedly connected to the side of the vertical limiting rod 306 away from the movable block 304; the horizontal limiting block 302 has a T-shaped structure, and the dimension of the side of the horizontal limiting block 302 near the connecting seat 201 is smaller than the dimension of the side of the horizontal limiting block 302 away from the connecting seat 201, so as to facilitate the fixing. The fixed seat 1 and the connecting seat 201 are horizontally limited; the guide groove 308 is a parallelogram structure, and the side of the guide groove 308 away from the vertical limiting rod 306 is concave, and the end of the guide groove 308 and the concave end are staggered; the guide block 311 is a frustum structure, and the diameter of the side of the guide block 311 near the vertical limiting rod 306 is adapted to the diameter of the vertical limiting rod 306 and is larger than the diameter of the side of the guide block 311 away from the vertical limiting rod 306, so as to facilitate the insertion between the vertical limiting rod 306 and the vertical limiting groove 305.

[0039] This invention, by setting a limiting component 3, inserts a horizontal limiting block 302 into a horizontal limiting groove 301 and slides the horizontal limiting block 302 downwards within the groove until its bottom surface contacts the inner wall of the groove. At this point, pressing the movable block 304 causes it to slide within the movable groove 303, causing the vertical limiting rod 306 to move the guide block 311. This causes the spring B307 to contract, and the guide pin 309 to slide from the top surface of the guide groove 308 near the vertical limiting rod 306 towards the top surface of the guide groove 308 away from the vertical limiting rod 306. This allows the rotating plate 310 to contact the inner wall of the movable groove 303 via a rotating shaft. Rotation occurs until the guide pin 309 slides to the top surface of the guide groove 308 away from the end of the vertical limiting rod 306. Then, the movable block 304 is released. Under the elastic force of the spring B307, the movable block 304 will slide in the opposite direction in the movable groove 303, causing the vertical limiting rod 306 to drive the guide block 311 to move in the opposite direction. This causes the guide pin 309 to slide from the top surface of the guide groove 308 away from the end of the vertical limiting rod 306 towards the concave end of the guide groove 308 until the guide pin 309 slides to the concave end of the guide groove 308. At this time, the position of the vertical limiting rod 306 in the vertical limiting groove 305 is fixed, so as to facilitate the horizontal and vertical fixation of the fixed seat 1 and the connecting seat 201.

[0040] In a preferred embodiment, the abutment component 4 includes an abutment groove 401, a hollow groove 402, an abutment block 403, a spring C404, a sliding groove 405, and a sliding pin 406. The movable block 304 has an abutment groove 401. The movable groove 303 has a hollow groove 402. The abutment block 403 slides through the abutment groove 401 and extends into the hollow groove 402. The two ends of the spring C404 are fixedly connected to the inner wall of the abutment groove 401 and the abutment block 403, respectively, and the elastic strength of the spring C404 is less than that of the spring B307. Two sliding grooves 405 are symmetrically formed on both sides of the inner wall of the hollow groove 402. The sliding pin 406 slides through the sliding groove 405 and is fixedly connected to the abutment block 403. The sliding groove 405 has an inclined structure, and the vertical distance between the end of the sliding groove 405 away from the vertical limiting rod 306 and the movable block 304 is [missing information]. The dimension is smaller than the vertical distance between the end of the sliding groove 405 near the vertical limit rod 306 and the movable block 304; when the guide pin 309 slides to the top surface of the guide groove 308 away from the end of the vertical limit rod 306, and the side of the guide block 311 does not contact the inner wall of the vertical limit groove 305, and the sliding pin 406 does not contact the inner wall of the end of the sliding groove 405 near the vertical limit rod 306, and the side of the abutting block 403 does not contact the inner wall of the empty groove 402; when the bottom surface of the horizontal limit block 302 contacts the bottom wall of the horizontal limit groove 301, the vertical limit rod 306 can be inserted into the vertical limit groove 305; when the guide pin 309 slides to the bottom surface of the guide groove 308 away from the end of the vertical limit rod 306, the sliding pin 406 contacts the inner wall of the end of the sliding groove 405 near the vertical limit rod 306, and the top surface of the abutting block 403 is still in the abutting groove 401.

[0041] This invention, by setting up an abutment component 4, allows the guide pin 309 to slide from the bottom surface of the guide groove 308 away from the vertical limiting rod 306 towards the bottom surface of the guide groove 308 near the vertical limiting rod 306. Because the elastic strength of spring C404 is less than that of spring B307, the sliding pin 406 will slide in the opposite direction, causing the abutment block 403 to slide in the opposite direction within the abutment groove 401 and the empty groove 402. This causes spring C404 to contract under force. The force generated by the contraction of spring C404 can interact with and cancel out the force generated by the extension of spring B307, thereby reducing the sliding speed of the movable block 304 within the movable groove 303. This prevents the guide pin 309 from being damaged by rapid impact with the inner wall of the guide groove 308 under the elastic force of spring B307. Furthermore, since the sliding groove 405 is an inclined structure, it can play a role in dispersing and releasing force.

[0042] In addition, the present invention also relates to a method for a multi-dimensional wind turbine blade self-diagnosis device based on vibration, comprising the following steps:

[0043] Step 1: Insert the horizontal limiting block 302 into the horizontal limiting groove 301 and slide the horizontal limiting block 302 downward in the horizontal limiting groove 301 until the bottom surface of the horizontal limiting block 302 contacts the bottom wall of the horizontal limiting groove 301, so as to achieve lateral limiting of the fixed seat 1 and the connecting seat 201.

[0044] Step 2: By pressing the movable block 304, the movable block 304 slides in the movable groove 303, and the longitudinal positioning of the fixed seat 1 and the connecting seat 201 is achieved through the cooperation between the guide pin 309 and the guide groove 308.

[0045] Step 3: The elastic force of spring C404 can counteract the force generated when spring B307 is stretched. Furthermore, the structure of sliding groove 405 can disperse and release force to prevent guide pin 309 from being damaged by rapid impact with the inner wall of guide groove 308 under the elastic force of spring B307.

[0046] Step 4: Install the mounting base 1 onto the multi-dimensional fan using bolts, and ensure that the multi-dimensional fan blades can contact the inclined surface of the connecting block 203;

[0047] Step 5: When the multi-dimensional fan blades vibrate, the multi-dimensional fan blades come into contact with the inclined surface of the connecting block 203, which will cause the connecting block 203 to vibrate. The vibration sensor 205 can automatically diagnose the multi-dimensional fan blades.

[0048] The vibration sensor 205 is a conventional instrument, and its working principle, size, and model are irrelevant to the problem solved by this application, so they will not be described in detail. The control method of this invention is through a controller. The control circuit of the controller can be implemented by a person skilled in the art through simple programming. The power supply is also common knowledge in the art. Furthermore, this invention is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail.

[0049] Working principle of this invention: In use, firstly, insert the horizontal limiting block 302 into the horizontal limiting groove 301, and slide the horizontal limiting block 302 downwards within the horizontal limiting groove 301 until the bottom surface of the horizontal limiting block 302 contacts the bottom wall of the horizontal limiting groove 301. At this time, press the movable block 304, causing the movable block 304 to slide within the movable groove 303, causing the vertical limiting rod 306 to move the guide block 311, causing the spring B307 to contract under force, and causing the guide pin 309 to move from the top surface of the guide groove 308 near the end of the vertical limiting rod 306 towards the top surface of the guide groove 308. When the movable block 304 slides away from the vertical limit rod 306, the rotating plate 310 rotates against the inner wall of the movable groove 303 via the rotating shaft. As the movable block 304 slides within the movable groove 303, the sliding pin 406 slides from the end of the sliding groove 405 away from the vertical limit rod 306 towards the end of the sliding groove 405 closer to the vertical limit rod 306. This causes the spring C404 to relax and begin to extend, allowing the contact block 403 to slide within the contact groove 401 and the empty groove 402 until the guide pin 309 slides to the top surface of the guide groove 308 away from the vertical limit rod 306. Then, the movable block 304 is released. Under the elastic force of spring B307, the movable block 304 will slide in the opposite direction within the movable groove 303, causing the vertical limiting rod 306 to move the guide block 311 in the opposite direction. This causes the guide pin 309 to slide from the top surface of the guide groove 308 away from the end of the vertical limiting rod 306 towards the concave end of the guide groove 308, causing the sliding pin 406 to slide in the opposite direction. This causes the abutment block 403 to slide in the opposite direction within the abutment groove 401 and the empty groove 402, causing the spring C404 to contract under force until the guide pin 309 slides to the concave end of the guide groove 308. At this point, the vertical limiting rod 306 and the vertical limiting groove 305 are inserted into each other. Next, the fixing seat 1 is installed on the multi-dimensional fan by bolts, and the multi-dimensional fan blades are in contact with the inclined surface of the connecting block 203. During the rotation of the multi-dimensional fan blades, since the multi-dimensional fan blades are mostly inclined, they will press against the inclined surface of the connecting block 203, causing the connecting block 203 to slide in the connecting groove 202, causing the spring A204 to be compressed. If the multi-dimensional fan blades are in contact with the inclined surface of the connecting block 203, the multi-dimensional fan blades will vibrate, which will cause the connecting block 203 to vibrate, so that the vibration sensor 205 can automatically diagnose the multi-dimensional fan blades.

[0050] If the self-diagnostic component 2 needs to be replaced, press the movable block 304 to make it slide within the movable groove 303. This causes the vertical limit rod 306 to move the guide block 311, which in turn causes the spring B307 to contract. This causes the guide pin 309 to slide from the concave end of the guide groove 308 toward the bottom surface of the guide groove 308 away from the vertical limit rod 306. This causes the rotating plate 310 to rotate through the shaft against the inner wall of the movable groove 303 until the guide pin 309 slides. When the bottom surface of the guide groove 308 is away from the end of the vertical limiting rod 306, the side of the guide block 311 contacts the inner wall of the vertical limiting groove 305. Then, the movable block 304 is released, and under the elastic force of the spring B307, the movable block 304 will slide in the opposite direction in the movable groove 303, causing the vertical limiting rod 306 to drive the guide block 311 to move in the opposite direction, causing the guide pin 309 to move from the bottom surface of the guide groove 308 away from the end of the vertical limiting rod 306 towards the bottom of the guide groove 308. When the sliding pin 406 slides near the end of the vertical limiting rod 306, the spring force of spring C404 is less than that of spring B307, causing the sliding pin 406 to slide in the opposite direction. This causes the abutment block 403 to slide in the opposite direction within the abutment groove 401 and the empty groove 402, resulting in the spring C404 being compressed. The force generated by the compression of spring C404 interacts with and cancels out the force generated by the extension of spring B307, thereby reducing the sliding speed of the movable block 304 within the movable groove 303. This prevents the guide pin 309 from being damaged by rapid impact with the inner wall of the guide groove 308 under the action of the spring force of spring B307. The guide pin 309 slides until it reaches the top surface of the guide groove 308 near the end of the vertical limiting rod 306. Then, the connecting seat 201 is pulled upwards, causing the horizontal limiting block 302 to slide upwards within the horizontal limiting groove 301 until the horizontal limiting block 302 moves out of the horizontal limiting groove 301. The self-diagnostic component 2 can then be installed in the same manner.

[0051] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0052] Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other.

[0053] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A multi-dimensional wind turbine blade self-diagnosis device based on vibration, characterized in that, It includes a fixed base (1), a self-diagnostic component (2), and a limiting component (3); the fixed base (1) is detachably mounted on the multi-dimensional fan by bolts; the self-diagnostic component (2) is arranged on the fixed base (1); the self-diagnostic component (2) includes a connecting seat (201), a connecting groove (202), a connecting block (203), a spring A (204), and a vibration sensor (205); the connecting seat (201) is connected to the fixed base (1) through the limiting component (3); The connecting seat (201) has a connecting groove (202) on the side away from the fixed seat (1); the connecting block (203) slides through the connecting groove (202) and contacts the multi-dimensional fan blades; a number of springs A (204) are arranged in a linear array in the connecting groove (202), and the two ends of the springs A (204) are fixedly connected to the inner wall of the connecting groove (202) and the connecting seat (201) respectively; the vibration sensor (205) is fixed on the connecting seat (201); The connecting block (203) has a right-angled triangular structure, the tip of the connecting block (203) has an arc-shaped structure, and the inclined surface of the connecting block (203) is in contact with the inner wall of the connecting groove (202); The limiting component (3) includes a horizontal limiting groove (301), a horizontal limiting block (302), a movable groove (303), a movable block (304), a vertical limiting groove (305), a vertical limiting rod (306), a spring B (307), a guide groove (308), a guide pin (309), a rotating plate (310), and a guide block (311); the fixed seat (1) has a horizontal limiting groove (301) on the side near the connecting seat (201); the horizontal limiting block (302) slides through the horizontal limiting groove (301) and is fixedly connected to the connecting seat (201); the fixed seat (1) has a plurality of movable grooves (303) arranged in a linear array on the side away from the connecting seat (201); the movable block (304) slides through the movable groove (303) through the abutment component (4); the horizontal limiting block (302) is arranged in a linear array on the side away from the connecting seat (201). A plurality of vertical limiting grooves (305) are provided; the vertical limiting rod (306) is fixed on the movable block (304), and the end of the vertical limiting rod (306) extends through the movable groove (303) into the horizontal limiting groove (301) and is inserted into the vertical limiting groove (305); the spring B (307) is sleeved on the vertical limiting rod (306), and the two ends of the spring B (307) are respectively connected to the inner wall of the movable groove (303) and the horizontal limiting groove (301). The movable block (304) is fixedly connected; at least one guide groove (308) is provided on the movable block (304); the guide pin (309) is slidably inserted in the guide groove (308); one end of the rotating plate (310) is rotatably disposed in the movable groove (303) through a rotating shaft, and the other end is fixedly connected to the guide pin (309); the guide block (311) is fixedly connected to the side of the vertical limiting rod (306) away from the movable block (304); The abutment component (4) includes an abutment groove (401), a hollow groove (402), an abutment block (403), a spring C (404), a sliding groove (405), and a sliding pin (406); at least one abutment groove (401) is provided on the movable block (304); at least one hollow groove (402) is provided in the movable groove (303); the abutment block (403) slides through the abutment groove (401) and extends into the hollow groove (402); both ends of the spring C (404) are fixedly connected to the inner wall of the abutment groove (401) and the abutment block (403) respectively, and the elastic strength of the spring C (404) is less than the elastic strength of the spring B (307); at least one sliding groove (405) is provided in the hollow groove (402); the sliding pin (406) slides through the sliding groove (405) and is fixedly connected to the abutment block (403).

2. The multi-dimensional wind turbine blade self-diagnosis device based on vibration according to claim 1, characterized in that, The fixed seat (1) is a right-angled trapezoidal structure, and the dimension of the fixed seat (1) on the side closer to the connecting seat (201) is greater than the dimension of the fixed seat (1) on the side farther away from the connecting seat (201).

3. The multi-dimensional wind turbine blade self-diagnosis device based on vibration according to claim 1, characterized in that, The horizontal limiting block (302) has a T-shaped structure, and the dimension of the side of the horizontal limiting block (302) closer to the connecting seat (201) is smaller than the dimension of the side of the horizontal limiting block (302) farther away from the connecting seat (201).

4. The multi-dimensional wind turbine blade self-diagnosis device based on vibration according to claim 1, characterized in that, The guide groove (308) has a parallelogram structure, and the side of the guide groove (308) away from the vertical limiting rod (306) is concave. The end of the guide groove (308) and the concave end are staggered.

5. The multi-dimensional wind turbine blade self-diagnosis device based on vibration according to claim 1, characterized in that, The guide block (311) has a frustum-shaped structure. The diameter of the guide block (311) on the side closer to the vertical limiting rod (306) is matched with the diameter of the vertical limiting rod (306) and is larger than the diameter of the guide block (311) on the side farther away from the vertical limiting rod (306).

6. The multi-dimensional wind turbine blade self-diagnosis device based on vibration according to claim 1, characterized in that, The sliding groove (405) is an inclined structure, and the vertical distance between the end of the sliding groove (405) away from the vertical limit rod (306) and the movable block (304) is smaller than the vertical distance between the end of the sliding groove (405) near the vertical limit rod (306) and the movable block (304).

7. A method for a vibration-based multi-dimensional wind turbine blade self-diagnosis device, applicable to the vibration-based multi-dimensional wind turbine blade self-diagnosis device according to any one of claims 1-6, characterized in that: Includes the following steps: Step 1: Insert the horizontal limiting block (302) into the horizontal limiting groove (301) and slide the horizontal limiting block (302) downward in the horizontal limiting groove (301) until the bottom surface of the horizontal limiting block (302) contacts the bottom wall of the horizontal limiting groove (301) to achieve lateral limiting of the fixed seat (1) and the connecting seat (201); Step 2: By pressing the movable block (304), the movable block (304) slides in the movable groove (303), and through the cooperation between the guide pin (309) and the guide groove (308), the longitudinal positioning of the fixed seat (1) and the connecting seat (201) is achieved; Step 3: The elastic force of spring C (404) can counteract the force generated when spring B (307) is stretched. In addition, the structure of sliding groove (405) can disperse and release force to prevent the guide pin (309) from being damaged by rapid impact with the inner wall of guide groove (308) under the elastic force of spring B (307). Step 4: Install the fixing seat (1) on the multi-dimensional fan with bolts, and make the multi-dimensional fan blades able to contact the inclined surface of the connecting block (203); Step 5: When the multi-dimensional fan blade vibrates, the multi-dimensional fan blade comes into contact with the inclined surface of the connecting block (203), which will cause the connecting block (203) to vibrate. The vibration sensor (205) can automatically diagnose the multi-dimensional fan blade.

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