Wind turbine high speed shaft torque on-line dynamic detection device

Abstract

The present application relates to wind turbine high-speed shaft torque detection technical field, and disclose a wind turbine high-speed shaft torque online dynamic detection device, including fan support column and fixedly connected in the fixed plate of fan support column bottom inner wall, the top of fixed plate is provided with detection sensor, it also includes: fan part, the fan part is installed on the fan support column, the mounting portion is provided with several, several The mounting portion is installed on the fixed plate, the limiting portion is provided with several, several The limiting portion is installed on the detection sensor, through setting the mounting portion, the existing dynamic detection device in the use process, more using traditional fastener fixed installation sensor, relying on wrench and other tools auxiliary operation, leading to the dismounting process is complicated and laborious, it is not convenient for the quick dismounting and installation of sensor, thereby leading to the sensor overhaul replacement operation difficulty, the problem of low efficiency.

Description

Technical Field

[0001] This invention relates to the field of high-speed shaft torque detection technology for wind turbines, specifically to an online dynamic detection device for high-speed shaft torque of wind turbines. Background Technology

[0002] With the continuous upgrading and development of the wind power industry, the operational stability and transmission reliability of wind turbine units, as the core equipment for clean energy power generation, have attracted much attention. As a key load-bearing component of the unit's transmission chain, the torque parameter of the high-speed shaft directly reflects the transmission conditions and operational health of the unit. Therefore, a high-precision online dynamic detection device for the high-speed shaft torque of wind turbine units is needed to detect the high-speed shaft torque in real time.

[0003] However, existing dynamic detection devices mostly use traditional fasteners to fix and install sensors during use, relying on tools such as wrenches for operation. This makes the disassembly and assembly process cumbersome and laborious, and it is not convenient to quickly disassemble and install sensors. As a result, the sensor maintenance and replacement work is difficult and inefficient. Summary of the Invention

[0004] The purpose of this invention is to provide an online dynamic detection device for high-speed shaft torque of wind turbines. By setting up an installation part, it solves the problem that existing dynamic detection devices often use traditional fasteners to fix and install sensors, relying on tools such as wrenches for operation, which makes the disassembly and assembly process cumbersome and laborious, and inconvenient for the rapid disassembly and installation of sensors, resulting in difficult and inefficient sensor maintenance and replacement.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention relates to an online dynamic detection device for high-speed shaft torque of wind turbine generators, comprising a wind turbine support column and a fixing plate fixedly connected to the inner wall of the bottom of the wind turbine support column. A detection sensor is disposed on the top of the fixing plate. The device further comprises: a wind turbine section mounted on the wind turbine support column; several mounting sections, each mounted on the fixing plate; several limiting sections, each mounted on the detection sensor; several locking sections, each respectively disposed on one of the limiting sections; the mounting section includes a fixing assembly mounted on the fixing plate; and a locking assembly mounted on the fixing plate. On the detection sensor; the fixing assembly includes a fixing groove formed on the top of the fixing plate, and two cylindrical grooves formed in the fixing groove. A damping rod is fixedly connected to the side of each of the two cylindrical grooves that are far apart from each other, and a fixing block is fixedly connected to the side of each of the two damping rods that are close together. Elastic elements are provided on the two damping rods; four mounting parts, four limiting parts, and four locking parts are provided, arranged in an array. The two cylindrical grooves are mirror images of each other. The elastic elements include springs one respectively sleeved on the outer wall of the two damping rods. The side of each of the two springs one that is close together is fixedly connected to the two fixing blocks, and the side of each of the two springs one that is far apart from each other is fixedly connected to the fixing plate; the two springs one are located in the two cylindrical grooves respectively.

[0006] Furthermore, the fan unit includes a fan shaft rotatably connected within a fan support column, the front side of the fan shaft extending to the outside of the fan support column, and a plurality of fan blades fixedly connected to the outer wall of the fan shaft; the fan shaft is fixedly connected to a detection sensor, and three fan blades are provided, arranged in a circumferential array.

[0007] Furthermore, the limiting part includes an elastic support component mounted on the detection sensor; and a limiting component disposed on the engaging component.

[0008] Furthermore, the locking part includes a locking component disposed on the limiting component; and an elastic component disposed on the locking component.

[0009] Furthermore, the engaging assembly includes a cylindrical rod that passes through the detection sensor and is rotatably connected to the detection sensor. The cylindrical rod has two engaging grooves and a handle is fixedly connected to the outer wall of the cylindrical rod. The shapes of the two engaging grooves are the same as the shapes of the two fixed blocks, and the handle is cross-shaped.

[0010] Furthermore, the elastic support assembly includes a hollow circular ring sleeved on the outer wall of the cylindrical rod. The bottom of the hollow circular ring is fixedly connected to the detection sensor. An annular limiting plate is slidably connected inside the hollow circular ring. A second spring is provided inside the hollow circular ring. The top of the second spring is fixedly connected to the annular limiting plate, and the bottom of the second spring is fixedly connected to the hollow circular ring. The top of the hollow circular ring is open.

[0011] Furthermore, the limiting component includes a limiting ring fixedly connected to the top of the annular limiting plate, the limiting ring being slidably connected to the hollow circular ring, and an L-shaped groove being formed on the outer wall of the cylindrical rod; a protrusion is provided on the inner wall of the limiting ring, and the protrusion on the limiting ring is located in the L-shaped groove.

[0012] Furthermore, the locking assembly includes a circular groove formed on the limiting ring, a locking rod disposed in the circular groove, the front side of the locking rod extending outside the limiting ring, the rear side of the locking rod extending inside the limiting ring, the locking rod being slidably connected to the limiting ring, and a locking groove formed in the L-shaped groove; the locking groove is located in the transverse groove of the L-shaped groove, and the diameter of the locking groove is equal to the diameter of the locking rod, and in its natural state, the rear side of the locking rod is flush with the inner wall of the limiting ring.

[0013] Furthermore, the elastic component includes a circular plate fixedly connected to the outer wall of the locking rod, the circular plate being slidably connected to the circular groove, and a spring three being sleeved on the outer wall of the locking rod. The side of the spring three closest to the circular plate is fixedly connected to the circular plate, and the side of the spring three furthest from the circular plate is fixedly connected to the limiting ring. There are gaps between the circular plate and the front and rear sides of the circular groove, and the spring three is in a compressed state and has elasticity.

[0014] Furthermore, the detection sensor used in this device is a ZH07-GBZ high-speed bus-type torque sensor from AVIC Science & Technology. Its working principle is to be installed in series between the high-speed shaft of the wind turbine gearbox and the input shaft of the generator. It relies on the internal strain sensing structure to sense the torsional deformation generated during the operation of the transmission shaft in real time, converting the mechanical torque change into a corresponding electrical signal. At the same time, it synchronously collects the shaft speed status. After signal conditioning and processing by the internal circuit, the real-time torque, speed and operating condition information are transmitted to the outside via bus communication, thereby realizing all-weather online dynamic detection and status monitoring of the high-speed shaft torque of the wind turbine.

[0015] The present invention has the following beneficial effects: (1) By setting up an installation part, when installing the detection sensor, it is placed on the fixed plate. As the sensor moves down, the cylindrical rod is inserted into the fixed groove. The cylindrical rod squeezes the fixed block to make it shift laterally and compresses the damping rod and spring. After the locking groove and the fixed block are aligned, the spring rebounds and pushes the fixed block into the locking groove. The locking limit is formed by the right angle surface, and the sensor is stably assembled. When disassembling, simply rotate the cylindrical rod and use the inclined surface of the locking groove to squeeze the fixed block outward to release the locking constraint, so that the sensor can be quickly removed. The disassembly and assembly operation is simple and no tools are needed for installation. The detection sensor can be quickly disassembled and positioned, which is convenient for later maintenance and replacement. (2) By setting a limiting part, after the sensor is installed in place, the limiting ring and the vertical groove of the L-shaped groove cooperate with each other to form a circumferential constraint on the cylindrical rod, preventing the cylindrical rod from rotating on its own and ensuring the sensor is installed stably; when disassembling the sensor, press down on the limiting ring to make it move down along the vertical groove of the L-shaped groove, and simultaneously push the annular limiting plate to compress the second spring. After the limiting ring slides to align with the transverse groove, the locking limit on the cylindrical rod is released. Then, the cylindrical rod can be rotated by turning the handle to complete the unlocking and disassembly. The assembled cylindrical rod is locked to prevent rotation, avoiding the cylindrical rod from loosening and deflecting due to equipment vibration, and further enhancing the overall stability of the sensor after installation. (3) By setting a locking part, after the cylindrical rod rotates to a specified angle, the locking rod and the locking groove are aligned with each other. The spring in the compressed state releases its elastic force and pushes the circular plate along with the locking rod into the locking groove, thus locking the cylindrical rod in position. This keeps the cylindrical rod in a state of pressing the fixed block. After rotating each cylindrical rod in sequence to release all the locks, the detection sensor can be directly removed from the fixed plate. The rotated cylindrical rod is reliably positioned and locked, maintaining the continuous pressing state of the cylindrical rod on the fixed block and preventing it from rotating back to its original position due to vibration. This further improves the convenience of disassembly.

[0016] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a partial cross-sectional view of the fan section of the present invention; Figure 2 This is a partial structural schematic diagram of the detection sensor of the present invention; Figure 3This is a partial cross-sectional view of the mounting section of the present invention; Figure 4 This is a partial exploded view of the mounting section of the present invention; Figure 5 This is a partial cross-sectional view of the limiting part of the present invention; Figure 6 This is a partial cross-sectional view of the locking part of the present invention; Figure 7 For the present invention Figure 6 A magnified structural diagram of A in the middle; Figure 8 This is a schematic diagram of the overall structure of the present invention.

[0019] The attached diagram lists the components represented by each number as follows: In the diagram: 1. Fan section; 111. Fan support column; 112. Fixing plate; 113. Detection sensor; 114. Fan shaft; 115. Fan blades; 2. Mounting section; 21. Fixing assembly; 211. Fixing groove; 212. Cylindrical groove; 213. Damping rod; 214. Fixing block; 215. Spring 1; 22. Engaging assembly; 221. Cylindrical rod; 222. Engaging groove; 223. Handle; 3. Limiting section; 31. Elastic support assembly; 311. Hollow circular ring; 312. Annular limiting plate; 313. Spring 2; 32. Limiting assembly; 321. Limiting ring; 322. L-shaped groove; 4. Locking section; 41. Locking assembly; 411. Circular groove; 412. Locking rod; 413. Locking groove; 42. Elastic assembly; 421. Circular plate; 422. Spring 3. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1-8As shown, this invention is an online dynamic detection device for high-speed shaft torque of a wind turbine, including a wind turbine support column 111 and a fixing plate 112 fixedly connected to the inner wall of the bottom of the wind turbine support column 111. A detection sensor 113 is provided on the top of the fixing plate 112. It also includes: a wind turbine part 1, which is mounted on the wind turbine support column 111; several mounting parts 2, each mounted on the fixing plate 112; and several limiting parts 3. All are installed on the detection sensor 113; locking part 4, a plurality of locking parts 4 are provided, and the plurality of locking parts 4 are respectively provided on four limiting parts 3; the fan part 1 includes a fan shaft 114 rotatably connected in the fan support column 111, the front side of the fan shaft 114 extends to the outside of the fan support column 111, and a plurality of fan blades 115 are fixedly connected to the outer wall of the fan shaft 114; the fan shaft 114 is fixedly connected to the detection sensor 113, and three fan blades 115 are provided and arranged in a circumferential array.

[0022] Mounting part 2 includes a fixing component 21 mounted on a fixing plate 112; and a locking component 22 mounted on a detection sensor 113. The fixing component 21 includes a fixing groove 211 formed on the top of the fixing plate 112, with two cylindrical grooves 212 formed within the fixing groove 211. Damping rods 213 are fixedly connected to the sides of the two cylindrical grooves 212 that are far apart from each other, and fixing blocks 214 are fixedly connected to the sides of the two damping rods 213 that are close to each other. Elastic elements are provided on the two damping rods 213. Mounting part 2, limiting part 3, and locking part 4 are each provided with four parts arranged in an array. The two cylindrical grooves 212 are mirror images of each other. The elastic elements include springs 215 respectively sleeved on the outer walls of the two damping rods 213. The two springs 215 are fixedly connected to the two fixed blocks 214 on their sides, and fixedly connected to the fixed plate 112 on their sides. The two springs 215 are located in the two cylindrical grooves 212. The engaging assembly 22 includes a cylindrical rod 221 that passes through the detection sensor 113. The cylindrical rod 221 is rotatably connected to the detection sensor 113. Two engaging grooves 222 are provided on the cylindrical rod 221. A handle 223 is fixedly connected to the outer wall of the cylindrical rod 221. The shapes of the two engaging grooves 222 are the same as the shapes of the two fixed blocks 214. The handle 223 is cross-shaped. By setting the mounting part 2, the disassembly and assembly are simple and can be installed without the aid of tools, realizing the quick disassembly and positioning of the detection sensor 113, which is convenient for later maintenance and replacement.

[0023] The limiting part 3 includes an elastic support assembly 31, which is mounted on the detection sensor 113; and a limiting assembly 32, which is disposed on the engaging assembly 22. The elastic support assembly 31 includes a hollow circular ring 311 sleeved on the outer wall of the cylindrical rod 221. The bottom of the hollow circular ring 311 is fixedly connected to the detection sensor 113. An annular limiting plate 312 is slidably connected inside the hollow circular ring 311. A second spring 313 is disposed inside the hollow circular ring 311. The top of the second spring 313 is fixedly connected to the annular limiting plate 312, and the bottom of the second spring 313 is fixedly connected to the hollow circular ring 113. The hollow circular ring 311 is fixedly connected; the top of the hollow circular ring 311 is open. The limiting assembly 32 includes a limiting ring 321 fixedly connected to the top of the annular limiting plate 312. The limiting ring 321 is slidably connected to the hollow circular ring 311. The outer wall of the cylindrical rod 221 is provided with an L-shaped groove 322. The inner wall of the limiting ring 321 is provided with a protrusion, and the protrusion on the limiting ring 321 is located in the L-shaped groove 322. By setting the limiting part 3, the assembled cylindrical rod 221 is locked to prevent rotation, so as to avoid the cylindrical rod from loosening and deflecting due to the vibration of the equipment operation, and further enhance the overall stability after the sensor is installed.

[0024] The locking part 4 includes a locking assembly 41, which is disposed on the limiting assembly 32; and an elastic assembly 42, which is disposed on the locking assembly 41. The locking assembly 41 includes a circular groove 411 formed on the limiting ring 321, and a locking rod 412 disposed in the circular groove 411. The front side of the locking rod 412 extends to the outside of the limiting ring 321, and the rear side of the locking rod 412 extends to the inside of the limiting ring 321. The locking rod 412 is slidably connected to the limiting ring 321. A locking groove 413 is formed in the L-shaped groove 322. The locking groove 413 is located in the transverse groove of the L-shaped groove 322, and the diameter of the locking groove 413 is equal to the diameter of the locking rod 412. In its natural state, the rear side of the locking rod 412 is flush with the inner wall of the limiting ring 321. Component 42 includes a circular plate 421 fixedly connected to the outer wall of the locking rod 412. The circular plate 421 is slidably connected to the circular groove 411. A spring 3 422 is sleeved on the outer wall of the locking rod 412. The side of the spring 3 422 close to the circular plate 421 is fixedly connected to the circular plate 421, and the side of the spring 3 422 away from the circular plate 421 is fixedly connected to the limiting ring 321. There are gaps between the circular plate 421 and the front and rear sides of the circular groove 411. The spring 3 422 is in a compressed state and has elasticity. By setting the locking part 4, the cylindrical rod 221 after rotation is reliably positioned and locked, maintaining the continuous compression state of the cylindrical rod 221 on the fixing block 214, preventing the situation of self-rotation and reset due to vibration, and further improving the convenience of disassembly.

[0025] In use, the detection sensor 113 is placed on the fixing plate 112. The detection sensor 113 drives the four cylindrical rods 221 to be inserted into the four fixing slots 211 respectively. At this time, the four cylindrical rods 221 squeeze the corresponding two fixing blocks 214 respectively, causing the two fixing blocks 214 to move away from the cylindrical rods 221. The two fixing blocks 214 squeeze the corresponding damping rods 213 and spring 215 respectively, and deform them, causing spring 215 to generate elastic force. When the two engaging slots 222 on the cylindrical rods 221 are aligned with the two fixing blocks 214 respectively, the squeezing force on spring 215 disappears, and the elastic force is released. The elastic force acts on the fixing blocks 214, causing the fixing blocks 214 to be engaged in the engaging slots 222. With the cooperation of the right angle surface of the fixing block 214 and the right angle surface of the engaging slot 222, an engaging structure is formed, thereby fixing the four cylindrical rods 221 respectively, thus installing the detection sensor 113 on the fixing plate 112. At this time, with the cooperation of the limiting ring 321 and the vertical groove of the L-shaped groove 322, the cylindrical rod 221 is prevented from rotating, thereby maintaining the stability of the detection sensor 113 installation. When it is necessary to remove the detection sensor 113 from the fixing plate 112, press the limiting ring 321. The limiting ring 321 moves downward in the vertical groove of the L-shaped groove 322. The limiting ring 321 pushes the annular limiting plate 312 to move and squeezes the second spring 313, causing the second spring 313 to deform and generate elastic force until the limiting ring 321 is aligned with the transverse groove of the L-shaped groove 322, thereby releasing the fixation of the cylindrical rod 221. Then, turn the handle 223, and the handle 223 drives the cylindrical rod 221 to rotate. When the cylindrical rod 221 rotates, it presses against the two fixed blocks 214 through the engaging groove 222, causing the two fixed blocks 214 to move away from each other and releasing the cylindrical rod 221 from its fixation. During this process, the locking rod 412 is aligned with the locking groove 413. Since the spring 422 is in a compressed state and has elastic force, when the locking rod 412 is aligned with the locking groove 413, the spring 422 releases its elastic force. The elastic force acts on the circular plate 421, causing the circular plate 421 to drive the locking rod 412 into the locking groove 413, thereby fixing the cylindrical rod 221 that has rotated 90 degrees, thus maintaining the cylindrical rod 221 pressing against the two fixing blocks 214. Through the same operation as above, the four cylindrical rods 221 are rotated to release the fixation of the detection sensor 113, and then the detection sensor 113 is removed. After the sensor 113 is removed, pull the locking rod 412 to remove it from the locking groove 413. Then reset the limit ring 321 to its original state for easy installation and use next time. After the detection sensor 113 is installed, it is connected to the wind turbine shaft 114. Relying on the internal strain sensing structure, it senses the torsional deformation generated during the operation of the transmission shaft in real time, converts the mechanical torque change into a corresponding electrical signal, and simultaneously collects the shaft speed status. After signal conditioning and processing by the internal circuit, the real-time torque, speed and operating condition information are transmitted to the outside via bus communication, thereby realizing all-weather online dynamic detection and status monitoring of the high-speed shaft torque of the wind turbine.

[0026] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A wind turbine high-speed shaft torque online dynamic detection device, comprising a wind turbine support column (111) and a fixing plate (112) fixedly connected to the inner wall of the bottom of the wind turbine support column (111), wherein a detection sensor (113) is provided on the top of the fixing plate (112), characterized in that, Also includes: Fan unit (1), said fan unit (1) is mounted on fan support column (111); Mounting part (2), there are several mounting parts (2), and several mounting parts (2) are mounted on the fixing plate (112); A limiting part (3) is provided, and a plurality of the limiting parts (3) are installed on the detection sensor (113); Locking part (4), a plurality of locking parts (4) are provided, and the plurality of locking parts (4) are respectively provided on a plurality of limiting parts (3); The mounting part (2) includes a fixing component (21) which is mounted on a fixing plate (112); and Engagement assembly (22), which is mounted on detection sensor (113); The fixing component (21) includes a fixing groove (211) opened on the top of the fixing plate (112), and two cylindrical grooves (212) are opened in the fixing groove (211). A damping rod (213) is fixedly connected to the side of the two cylindrical grooves (212) that are far apart from each other, and a fixing block (214) is fixedly connected to the side of the two damping rods (213) that are close to each other. An elastic element is provided on the two damping rods (213). The mounting part (2), the limiting part (3) and the locking part (4) are each provided in four parts, arranged in an array.

2. The online dynamic detection device for high-speed shaft torque of wind turbine units according to claim 1, characterized in that, The fan unit (1) includes a fan shaft (114) rotatably connected in the fan support column (111), the front side of the fan shaft (114) extends to the outside of the fan support column (111), and a plurality of fan blades (115) are fixedly connected to the outer wall of the fan shaft (114). Among them, the fan shaft (114) is fixedly connected to the detection sensor (113), and there are three fan blades (115) arranged in a circular array.

3. The online dynamic detection device for high-speed shaft torque of wind turbine units according to claim 1, characterized in that, The limiting part (3) includes an elastic support assembly (31), which is mounted on the detection sensor (113); and A limiting component (32) is disposed on the engaging component (22).

4. The online dynamic detection device for high-speed shaft torque of wind turbine units according to claim 1, characterized in that, The locking part (4) includes a locking component (41) disposed on the limiting component (32); and An elastic component (42) is disposed on a locking component (41).

5. The online dynamic detection device for high-speed shaft torque of wind turbine units according to claim 1, characterized in that, The engaging assembly (22) includes a cylindrical rod (221) that passes through the detection sensor (113). The cylindrical rod (221) is rotatably connected to the detection sensor (113). Two engaging grooves (222) are provided on the cylindrical rod (221). A handle (223) is fixedly connected to the outer wall of the cylindrical rod (221). The two engaging slots (222) are shaped like the two fixing blocks (214), and the handle (223) is cross-shaped.

6. The online dynamic detection device for high-speed shaft torque of wind turbine units according to claim 3, characterized in that, The elastic support assembly (31) includes a hollow circular ring (311) sleeved on the outer wall of the cylindrical rod (221). The bottom of the hollow circular ring (311) is fixedly connected to the detection sensor (113). An annular limiting plate (312) is slidably connected inside the hollow circular ring (311). A second spring (313) is provided inside the hollow circular ring (311). The top of the second spring (313) is fixedly connected to the annular limiting plate (312), and the bottom of the second spring (313) is fixedly connected to the hollow circular ring (311). The top of the hollow circular ring (311) is open.

7. The online dynamic detection device for high-speed shaft torque of wind turbine units according to claim 3, characterized in that, The limiting component (32) includes a limiting ring (321) fixedly connected to the top of the annular limiting plate (312), the limiting ring (321) being slidably connected to the hollow circular ring (311), and the outer wall of the cylindrical rod (221) being provided with an L-shaped groove (322). The inner wall of the limiting ring (321) is provided with a protrusion, and the protrusion on the limiting ring (321) is located in the L-shaped groove (322).

8. The online dynamic detection device for high-speed shaft torque of wind turbine units according to claim 4, characterized in that, The locking assembly (41) includes a circular groove (411) formed on the limiting ring (321), a locking rod (412) is provided in the circular groove (411), the front side of the locking rod (412) extends to the outside of the limiting ring (321), the rear side of the locking rod (412) extends to the inside of the limiting ring (321), the locking rod (412) is slidably connected to the limiting ring (321), and a locking groove (413) is formed in the L-shaped groove (322). The locking groove (413) is located in the transverse groove of the L-shaped groove (322), and the diameter of the locking groove (413) is equal to the diameter of the locking rod (412). In its natural state, the rear side of the locking rod (412) is flush with the inner wall of the limiting ring (321).

9. The online dynamic detection device for high-speed shaft torque of wind turbine units according to claim 4, characterized in that, The elastic component (42) includes a circular plate (421) fixedly connected to the outer wall of the locking rod (412), the circular plate (421) being slidably connected to the circular groove (411), and a spring three (422) sleeved on the outer wall of the locking rod (412). The side of the spring three (422) close to the circular plate (421) is fixedly connected to the circular plate (421), and the side of the spring three (422) away from the circular plate (421) is fixedly connected to the limiting ring (321). There are gaps on the front and rear sides of the circular plate (421) and the circular groove (411), and the spring three (422) is in a compressed state and has elasticity.

10. The online dynamic detection device for high-speed shaft torque of wind turbine units according to claim 1, characterized in that, The elastic element includes springs (215) respectively sleeved on the outer walls of two damping rods (213). The sides of the two springs (215) that are close to each other are fixedly connected to two fixing blocks (214), and the sides of the two springs (215) that are far apart from each other are fixedly connected to a fixing plate (112). Among them, the two springs (215) are located in the two cylindrical grooves (212) respectively.

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