A high-altitude detection device for a wind turbine metal component

Abstract

The application provides a high-altitude detection equipment for a metal part of a wind turbine generator, comprising a nacelle, a translation mechanism connected to the inside of the nacelle, and a detection mechanism connected to the execution end of the translation mechanism; the detection mechanism comprises two arc-shaped sliding rails connected to the execution end of the translation mechanism, and a movement monitoring assembly arranged on the surface of one arc-shaped sliding rail close to the other arc-shaped sliding rail; the movement monitoring assembly comprises a first scissor-type telescopic rod slidingly connected to the two ends of the arc-shaped sliding rail, and a second scissor-type telescopic rod connected to one end of the first scissor-type telescopic rod away from the other first scissor-type telescopic rod, wherein the second scissor-type telescopic rod is slidingly connected to the arc-shaped sliding rail, and a plurality of magnetic force sensors are arranged between the adjacent first scissor-type telescopic rods and the adjacent second scissor-type telescopic rods. The application expands the active range of the sensors and can detect the corrosion-prone nacelle top cover.

Description

Technical Field

[0001] This invention mainly relates to the technical field of wind turbine generators, and specifically to a high-altitude inspection device for metal components of wind turbine generators. Background Technology

[0002] A wind turbine is an electrical device that converts wind energy into mechanical work, which drives a rotor to rotate and ultimately outputs alternating current. During the use of a wind turbine, it is necessary to inspect it regularly to facilitate quick maintenance.

[0003] According to patent application CN202011638773.4, an automatic bolt detection device and method for wind turbines is described. The bolt detection device includes a power supply unit, a track trolley, a mounting bracket, a signal transmission device, a control device, a sensor device, and a circular slide rail. The circular slide rail is fixed to the inner side of the flange connecting the wind turbine stages, and has internal teeth on its inner side. The sensor device collects sampled stress data of the bolts and sampled image data of the corresponding nuts. The control device controls the track trolley to move along the circular slide rail. After one bolt is detected, it moves to the next bolt, receives and processes the sampled stress data and sampled image data, and sends the processing results to the backend server. This invention, an automatic bolt monitoring device for wind turbines, is equipped with multiple functional sensors and can move freely in a circular motion inside the wind turbine flange. It periodically monitors the operating status of the bolts online in real time, promptly determines the preload and stress of the bolts, and promptly proposes maintenance requirements. It eliminates the need for manual on-site inspection, reducing workload, lowering costs, improving efficiency and detection accuracy, and saving time and effort.

[0004] The aforementioned wind turbine testing equipment proposes maintenance requirements that eliminate the need for manual on-site inspections, reducing workload. However, traditional high-altitude testing equipment for metal components of wind turbines often uses a track trolley to change the position of the sensor along a circular slide rail. This method limits the sensor's movement, making it difficult to quickly monitor the overall corrosion rate of the nacelle, especially the nacelle roof, which is exposed to sunlight and rain for extended periods. Summary of the Invention

[0005] This invention provides a high-altitude inspection device for metal components of wind turbine generators to solve the technical problems mentioned in the background section.

[0006] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows:

[0007] A high-altitude inspection device for metal components of a wind turbine includes a nacelle, with a translation mechanism connected inside the nacelle, and an inspection mechanism connected to the actuator end of the translation mechanism.

[0008] The detection mechanism includes two arched slide rails connected to the execution end of the translation mechanism, and a motion monitoring component disposed on the surface of the arched slide rails near the other arched slide rail.

[0009] The motion monitoring component includes a first scissor-type telescopic rod slidably connected to both ends of the arched slide rail, and a second scissor-type telescopic rod connected to one end of the first scissor-type telescopic rod away from the other first scissor-type telescopic rod. The second scissor-type telescopic rod is slidably connected to the arched slide rail, and multiple magnetic sensors are installed between adjacent first scissor-type telescopic rods and adjacent second scissor-type telescopic rods.

[0010] Both the first and second scissor-type telescopic rods are composed of multiple cross-shaped arms that are rotatably connected to each other.

[0011] Furthermore, the translation mechanism includes multiple linear guide rails installed at both ends of the cabin inner wall and slidably connected to the arched slide rail, and two traveling ground rails installed at the bottom of the cabin interior. The execution end of the traveling ground rail is connected to the arched slide rail. In this invention, the magnetic sensor on the arched slide rail can be moved to various positions in the cabin by the translation of the arched slide rail, which facilitates the comprehensive detection of the magnetic sensor.

[0012] Furthermore, the mobile monitoring component also includes a sliding block slidably connected to the arched slide rail. Both ends of the sliding block are rotatably connected to the first scissor-type telescopic rod and the second scissor-type telescopic rod respectively via rotating shafts. In this invention, the sliding block pushes or pulls the second scissor-type telescopic rod to achieve linkage between the second scissor-type telescopic rod and the first scissor-type telescopic rod, so that when the first scissor-type telescopic rod shortens, the second scissor-type telescopic rod extends, thereby cooperating with the magnetic sensor on the first scissor-type telescopic rod to focus on the cabin roof, which is most susceptible to corrosion, for detection.

[0013] Furthermore, the motion monitoring component also includes two support plates mounted on the outer surface of the arched slide rail, and an electric push rod mounted between two adjacent support plates. The actuating end of the electric push rod is rotatably connected to the end of the adjacent first scissor telescopic rod away from the second scissor telescopic rod via a pivot. In this invention, the support plates provide support for the electric push rod, and the electric push rod pushes the first scissor telescopic rod to extend or retract.

[0014] Furthermore, fixing pins are installed on both sides of the magnetic sensor. The fixing pins are used to connect with the first scissor-type telescopic rod and the second scissor-type telescopic rod. In this invention, the magnetic sensor is connected to the first scissor-type telescopic rod or the second scissor-type telescopic rod on both sides through fixing pins. There are two fixing pins, so as to prevent the magnetic sensor from rotating due to the vibration of the first scissor-type telescopic rod when it extends or retracts.

[0015] Furthermore, the end of the second scissor-type telescopic rod away from the first scissor-type telescopic rod is fixed to the housing of the arched slide rail by a pin. In this invention, fixing one end of the second scissor-type telescopic rod to the housing of the arched slide rail facilitates the extension and retraction of the second scissor-type telescopic rod and prevents the sliding of one end of the second scissor-type telescopic rod on the track of the arched slide rail from affecting the concentration of the magnetic sensor on the second scissor-type telescopic rod or its coordination with the magnetic sensor on the first scissor-type telescopic rod.

[0016] Furthermore, a displacement sensor is embedded in the housing of the sliding block. In this invention, the position of the arched slide rail is detected by the displacement sensor on the sliding block, and the position of the sliding block on the arched slide rail is monitored to ensure that the first scissor-type telescopic rod extends and retracts smoothly, which facilitates the detection of the detection effect.

[0017] Furthermore, the length of the first scissor-type telescopic rod is greater than the length of the second scissor-type telescopic rod, so that the first scissor-type telescopic rod can be effectively distributed so that it faces the top cover of the cabin.

[0018] Furthermore, two spring telescopic pins are sequentially installed from top to bottom on one side surface of the magnetic sensor. In this invention, when the magnetic sensors are concentrated, the extension and retraction of the spring telescopic pins reduces the impact between the magnetic sensors and extends their service life.

[0019] Furthermore, a sponge head is installed on the surface of the spring telescopic needle away from the magnetic sensor. In this invention, the sponge head provides cushioning in conjunction with the extension and retraction of the spring telescopic needle.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] Firstly, this invention expands the sensor's range of motion and allows for focused detection of the easily corroded cabin roof. Specifically, the first scissor-type telescopic rod pushes or pulls a sliding block, which in turn pushes or pulls a second scissor-type telescopic rod, thus linking the second and first scissor-type telescopic rods together. This allows the second scissor-type telescopic rod to extend when the first rod shortens, thereby enabling the magnetic sensor on the first rod to focus its detection on the cabin roof, which is most susceptible to corrosion.

[0022] Secondly, the present invention uses a walking track to drive the arched slide rail on it to move horizontally, and a linear guide rail to guide the arched slide rail to move horizontally in a straight line in a stable manner. Through the horizontal movement of the arched slide rail, the magnetic sensor on the arched slide rail can be moved to various positions in the cabin, which facilitates the comprehensive detection of the magnetic sensor.

[0023] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the present invention;

[0025] Figure 2 This is an exploded view of the present invention;

[0026] Figure 3 This is a schematic diagram of the structure of the motion monitoring component of the present invention;

[0027] Figure 4 This is a right view of the motion monitoring component of the present invention;

[0028] Figure 5 for Figure 4 Enlarged view of the structure of area A in the middle;

[0029] Figure 6 This is a schematic diagram of the sliding block of the present invention;

[0030] Figure 7 This is a schematic diagram of the structure of the magnetic sensor of the present invention;

[0031] Figure 8 This is a cross-sectional view of the present invention.

[0032] In the diagram: 10. Cabin; 20. Translation mechanism; 21. Linear guide rail; 22. Traveling ground rail; 30. Detection mechanism; 31. Arched slide rail; 32. Motion monitoring component; 321. First scissor telescopic rod; 322. Second scissor telescopic rod; 323. Magnetic sensor; 3231. Fixing pin; 3232. Sponge head; 324. Sliding block; 3241. Displacement sensor; 325. Support plate; 326. Electric push rod. Detailed Implementation

[0033] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be given below with reference to the accompanying drawings, which illustrate several embodiments of the present invention. However, the present invention can be implemented in different forms and is not limited to the embodiments described in the text. Rather, these embodiments are provided to make the disclosure of the present invention more thorough and complete.

[0034] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the specification of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0036] For an example, please refer to the appendix. Figure 1-8 A high-altitude inspection device for metal components of a wind turbine includes a nacelle 10, a translation mechanism 20 connected inside the nacelle 10, and a detection mechanism 30 connected to the execution end of the translation mechanism 20.

[0037] The detection mechanism 30 includes two arched slide rails 31 connected to the execution end of the translation mechanism 20, and a motion monitoring component 32 disposed on the surface of the arched slide rail 31 near the other arched slide rail 31.

[0038] The motion monitoring component 32 includes a first scissor-type telescopic rod 321 slidably connected to both ends of the arched slide rail 31, and a second scissor-type telescopic rod 322 connected to one end of the first scissor-type telescopic rod 321 away from the other first scissor-type telescopic rod 321. The second scissor-type telescopic rod 322 is slidably connected to the arched slide rail 31. A plurality of magnetic sensors 323 are installed between adjacent first scissor-type telescopic rods 321 and adjacent second scissor-type telescopic rods 322.

[0039] Both the first scissor-type telescopic rod 321 and the second scissor-type telescopic rod 322 are composed of multiple cross-shaped arms that are rotatably connected to each other.

[0040] For details, please refer to the appendix. Figure 2 , 3 4. The translation mechanism 20 includes a plurality of linear guide rails 21 installed at both ends of the inner wall of the cabin 10 and slidably connected to the arched slide rail 31, and two walking ground rails 22 installed at the bottom of the interior of the cabin 10. The execution end of the walking ground rail 22 is connected to the arched slide rail 31.

[0041] The mobile monitoring component 32 also includes a sliding block 324 that is slidably connected to the arched slide rail 31. Both ends of the sliding block 324 are rotatably connected to the first scissor telescopic rod 321 and the second scissor telescopic rod 322 respectively via rotating shafts.

[0042] The motion monitoring component 32 also includes two support plates 325 installed on the outer surface of the arched slide rail 31, and an electric push rod 326 installed between two adjacent support plates 325. The actuating end of the electric push rod 326 is rotatably connected to the end of the adjacent first scissor telescopic rod 321 away from the second scissor telescopic rod 322 via a rotating shaft.

[0043] It should be noted that in this embodiment, the arched slide rail 31 on the traveling ground rail 22 is driven to move horizontally, and the arched slide rail 31 is guided to move horizontally in a straight line by the linear guide rail 21. The horizontal movement of the arched slide rail 31 allows the magnetic sensor 323 on the arched slide rail 31 to be moved to various positions in the cabin 10, which facilitates the comprehensive detection of the magnetic sensor 323.

[0044] Furthermore, when the first scissor-type telescopic rod 321 extends or retracts, it pushes or pulls the sliding block 324, which in turn pushes or pulls the second scissor-type telescopic rod 322. This completes the linkage between the second scissor-type telescopic rod 322 and the first scissor-type telescopic rod 321, so that when the first scissor-type telescopic rod 321 shortens, the second scissor-type telescopic rod 322 extends. This allows the magnetic sensor 323 on the first scissor-type telescopic rod 321 to focus on the top cover of the cabin 10, which is most affected by corrosion, for detection.

[0045] When the first scissor-type telescopic rod 321 extends, the second scissor-type telescopic rod 322 shortens, and the magnetic sensor 323 on the second scissor-type telescopic rod 322 is concentrated, thereby cooperating with the magnetic sensor 323 on the first scissor-type telescopic rod 321 to detect the corrosion degree of the side wall of the cabin 10.

[0046] Furthermore, the support plate 325 provides support for the electric push rod 326, and the electric push rod 326 pushes the first scissor telescopic rod 321 to extend and retract.

[0047] For details, please refer to the appendix. Figure 5 , 6 7. The magnetic sensor 323 is equipped with fixing pins 3231 on both sides, and the fixing pins 3231 are used to connect with the first scissor telescopic rod 321 and the second scissor telescopic rod 322.

[0048] The end of the second scissor-type telescopic rod 322 away from the first scissor-type telescopic rod 321 is fixed to the housing of the arched slide rail 31 by a pin;

[0049] A displacement sensor 3241 is embedded in the housing of the sliding block 324;

[0050] The length of the first scissor-type telescopic rod 321 is greater than the length of the second scissor-type telescopic rod 322;

[0051] It should be noted that in this embodiment, the magnetic sensor 323 is connected to the first scissor-type telescopic rod 321 or the second scissor-type telescopic rod 322 on both sides by fixing pins 3231. There are two fixing pins 3231, so as to prevent the magnetic sensor 323 from rotating due to the vibration of the first scissor-type telescopic rod 321 or the second scissor-type telescopic rod 322 when it extends or retracts, thereby improving the stability of the installation of the magnetic sensor 323.

[0052] Furthermore, by fixing one end of the second scissor-type telescopic rod 322 to the housing of the arched slide rail 31, the extension and retraction of the second scissor-type telescopic rod 322 is facilitated, and the sliding of one end of the second scissor-type telescopic rod 322 on the track of the arched slide rail 31 is prevented from affecting the concentration of the magnetic sensor 323 on the second scissor-type telescopic rod 322 or its cooperation with the magnetic sensor 323 on the first scissor-type telescopic rod 321.

[0053] Furthermore, the position of the arched slide rail 31 is detected by the displacement sensor 3241 on the sliding block 324, and the position of the sliding block 324 on the arched slide rail 31 is monitored to check whether the first scissor telescopic rod 321 extends and retracts smoothly, which facilitates the detection effect.

[0054] Furthermore, so that the first scissor-type telescopic rod 321 can be effectively distributed so that it faces the top cover of the cabin 10.

[0055] For details, please refer to the appendix. Figure 6 and 7 Two spring telescopic pins 3233 are installed sequentially from top to bottom on one side surface of the magnetic sensor 323;

[0056] A sponge head 3232 is mounted on the side of the spring telescopic needle 323 away from the magnetic sensor 323;

[0057] It should be noted that, in this embodiment, when the magnetic sensors 323 are concentrated, the extension and retraction of the spring telescopic pin 3233 reduces the impact between the magnetic sensors 323 and extends the service life of the magnetic sensors 323.

[0058] Furthermore, the sponge head 3232 works in conjunction with the extension and retraction of the spring telescopic pin 3233 to provide cushioning.

[0059] The specific operation method of this invention is as follows:

[0060] When it is necessary to inspect the metal parts of the wind turbine, the arched slide rail 31 on the traveling ground rail 22 is driven to move horizontally, and the arched slide rail 31 is guided to move horizontally in a straight line by the linear guide rail 21. The horizontal movement of the arched slide rail 31 allows the magnetic sensor 323 on the arched slide rail 31 to be moved to various positions in the nacelle 10, which facilitates the comprehensive inspection of the magnetic sensor 323.

[0061] The first scissor-type telescopic rod 321 is pushed by the electric push rod 326 to extend and retract. When the first scissor-type telescopic rod 321 extends and retracts, it pushes or pulls the sliding block 324, which in turn pushes or pulls the second scissor-type telescopic rod 322. This completes the linkage between the second scissor-type telescopic rod 322 and the first scissor-type telescopic rod 321, so that when the first scissor-type telescopic rod 321 shortens, the second scissor-type telescopic rod 322 extends. This allows the magnetic sensor 323 on the first scissor-type telescopic rod 321 to focus on the top cover of the cabin 10, which is most affected by corrosion, for detection.

[0062] When the first scissor-type telescopic rod 321 extends, the second scissor-type telescopic rod 322 shortens, and the magnetic sensor 323 on the second scissor-type telescopic rod 322 is concentrated, thereby cooperating with the magnetic sensor 323 on the first scissor-type telescopic rod 321 to detect the corrosion degree of the side wall of the cabin 10.

[0063] The present invention has been described by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A high-altitude inspection device for metal components of a wind turbine generator, comprising a nacelle (10), characterized in that, The interior of the cabin (10) is connected to a translation mechanism (20), and the execution end of the translation mechanism (20) is connected to a detection mechanism (30). The detection mechanism (30) includes two arched slide rails (31) connected to the execution end of the translation mechanism (20), and a motion monitoring component (32) disposed on the surface of the arched slide rail (31) near the other arched slide rail (31). The motion monitoring component (32) includes a first scissor telescopic rod (321) slidably connected to both ends of the arched slide rail (31), and a second scissor telescopic rod (322) connected to one end of the first scissor telescopic rod (321) away from the other first scissor telescopic rod (321). The second scissor telescopic rod (322) is slidably connected to the arched slide rail (31). A plurality of magnetic sensors (323) are installed between adjacent first scissor telescopic rods (321) and adjacent second scissor telescopic rods (322). The first scissor telescopic rod (321) and the second scissor telescopic rod (322) are both composed of multiple cross fork arms that are rotatably connected to each other. The end of the second scissor telescopic rod (322) away from the first scissor telescopic rod (321) is fixed to the housing of the arched slide rail (31) by a pin. The translation mechanism (20) includes multiple linear guide rails (21) installed at both ends of the inner wall of the cabin (10) and slidably connected to the arched slide rail (31), and two walking ground rails (22) installed at the bottom of the cabin (10). The execution end of the walking ground rail (22) is connected to the arched slide rail (31). The mobile monitoring component (32) also includes a sliding block (324) slidably connected to the arched slide rail (31). Both ends of the sliding block (324) are rotatably connected to the first scissor telescopic rod (321) and the second scissor telescopic rod (322) respectively via rotating shafts. The motion monitoring component (32) also includes two support plates (325) installed on the outer surface of the arched slide rail (31), and an electric push rod (326) installed between two adjacent support plates (325). The actuating end of the electric push rod (326) is rotatably connected to the end of the adjacent first scissor telescopic rod (321) away from the second scissor telescopic rod (322) via a rotating shaft.

2. The high-altitude inspection equipment for metal components of wind turbine units according to claim 1, characterized in that, The magnetic sensor (323) is equipped with fixing pins (3231) on both sides, and the fixing pins (3231) are used to connect with the first scissor telescopic rod (321) and the second scissor telescopic rod (322).

3. The high-altitude inspection equipment for metal components of wind turbine units according to claim 1, characterized in that, A displacement sensor (3241) is embedded in the housing of the sliding block (324).

4. The high-altitude inspection equipment for metal components of wind turbine units according to claim 1, characterized in that, The length of the first scissor telescopic rod (321) is greater than the length of the second scissor telescopic rod (322).

5. The high-altitude inspection equipment for metal components of wind turbine units according to claim 1, characterized in that, Two spring telescopic pins (3233) are installed sequentially from top to bottom on one side surface of the magnetic sensor (323).

6. The high-altitude inspection equipment for metal components of wind turbine units according to claim 5, characterized in that, A sponge head (3232) is mounted on the side of the spring telescopic pin (3233) away from the magnetic sensor (323).

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