Wind turbine blade detection device

Abstract

The present invention relates to the field of wind power detection technology, and discloses a wind power blade detection device, including a wall climbing device, the top of the wall climbing device is rotatably connected to a mechanical arm through a bearing, the end of the mechanical arm away from the wall climbing device is rotatably connected to a base one through a bearing, the outer wall of the base one is fixedly connected to a motor one, the side of the base one away from the motor one is rotatably connected to a detection mechanism through a bearing, and the output end of the motor one is fixedly connected to the detection mechanism; the detection mechanism includes: a base two, the outer wall of the base two is rotatably connected to the base one, and by setting the detection mechanism, when the curvature of the blade changes, the front detection head can be controlled to respond quickly and adjust the angle, without relying on the overall movement of the mechanical arm to adjust the posture of the detection head as in traditional equipment. This design enables the equipment to complete the detection task quickly and accurately, thereby improving detection efficiency and accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power detection, and in particular to a wind power blade detection device. Background Art

[0002] Wind turbine blades are one of the core components of wind turbines, and their performance directly impacts the efficiency of wind power generation systems. Wind turbine blades are prone to defects during production, transportation, and use. Traditional blade inspection methods fall into two categories: First, large surface defects are detected using telescopes; second, defects within the blades are detected using manual tapping techniques performed by rappelling a rope and relying on empirical analysis.

[0003] Patent application number CN201910138906.2 discloses a wind turbine blade inspection device, comprising a traveling base movable along the wall of a wind turbine tower, a telescopic device fixed to the traveling base, and a detection device mounted at the end of the telescopic device. The telescopic device comprises a base plate, a telescopic frame fixed to the base plate, and a drive mechanism for automatically extending and retracting the telescopic frame. The movable end of the telescopic frame is provided with a detection table for mounting the detection device. The bottom surface of the base plate is provided with an adjustment mechanism. The adjustment mechanism comprises an adjustment motor, a rotating shaft driven by the adjustment motor, at least one winding wheel fixed to the rotating shaft, and a steel wire rope with one end fixedly wound around the winding wheel. The other end of the steel wire rope is fixed to the detection table. A pair of reinforcement plates extend downward from any pair of opposing side edges of the base plate. The two ends of the rotating shaft are mounted on the reinforcement plates via damping bearings. This application not only replaces manual high-altitude work and improves the efficiency and quality of inspection, but also ensures stability in high-altitude and windy working environments.

[0004] When in use, existing equipment mostly adopts a fixed track or a single-degree-of-freedom robotic arm with only the ability to move in a single direction. This type of structural design is difficult to adapt to the complex curvature changes and size differences of wind turbine blades of different models. At the same time, the traditional rigid support structure cannot quickly achieve a constant distance fit between the detection probe and the blade surface, resulting in data deviations due to distance fluctuations during the detection process, which in turn causes a decrease in detection accuracy and makes the detection results prone to errors. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides a wind turbine blade detection device to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions: a wind turbine blade detection device, comprising a wall climbing device, a mechanical arm rotatably connected to the top of the wall climbing device via a bearing, an end of the mechanical arm away from the wall climbing device rotatably connected to a first base via a bearing, an outer wall of the first base fixedly connected to a first motor, a detection mechanism rotatably connected to the side of the first base away from the first motor via a bearing, and an output end of the first motor fixedly connected to the detection mechanism;

[0007] The detection mechanism includes:

[0008] Base two, the outer wall of base two is rotatably connected to base one, the output end of motor one is fixedly connected to base two, a circular hole one is opened on the side of base two away from base one, the inner wall of base two is fixedly connected with a push rod, and the end of the push rod away from base two is fixedly connected with a connecting plate one, the push rod is used to control the extension and retraction of the detection mechanism. By setting up the detection mechanism, when the curvature of the blade changes, the front detection head can be controlled to respond quickly and adjust the angle. There is no need to rely on the overall movement of the robotic arm to adjust the posture of the detection head like traditional equipment. This design enables the equipment to complete the detection task quickly and accurately, and improves the detection efficiency and accuracy.

[0009] According to the above technical solution, the inner wall of the circular hole 1 is movably connected with a sliding column 1, the side of the sliding column 1 away from the base 2 is fixedly connected to the connecting plate 1, the inner wall of the connecting plate 1 is movably connected with a right-angle plate 1, the outer wall of the right-angle plate 1 is fixedly connected with an auxiliary component, the outer wall of the right-angle plate 1 is provided with a sliding groove 1, and the sliding column 1 is used to assist the connection effect between the push rod and the connecting plate 1.

[0010] According to the above technical solution, the outer wall of the right-angle plate one is fixedly connected with a connecting head, the end of the right-angle plate one away from the connecting plate one is fixedly connected with the motor two, the side of the right-angle plate one away from the motor two is rotatably connected with a rotating plate through a bearing, the output end of the motor two is fixedly connected to the rotating plate, the end of the rotating plate away from the right-angle plate one is fixedly connected with an adjustment component, and the motor two is used to control the deflection angle of the adjustment component. By setting a detection mechanism, the distance of the detection head can be dynamically adjusted. When the curvature of the wind turbine blade changes during the detection process, the mechanism can adjust the distance between the detection head and the blade surface in real time to avoid fluctuations in the distance between the detection head and the blade surface due to changes in curvature, thereby further improving the detection accuracy and reliability of the equipment.

[0011] The cam is fixedly connected to the upper end of the hydraulic cylinder to adjust the speed of the hydraulic cylinder to adjust the speed of the hydraulic cylinder to adjust the speed of the hydraulic cylinder to adjust the speed of the hydraulic cylinder to adjust the speed of the hydraulic cylinder to adjust the speed of the hydraulic cylinder to adjust the speed of the hydraulic cylinder to adjust the speed of the hydraulic cylinder to adjust the speed of the hydraulic cylinder to adjust the speed of the hydraulic cylinder to adjust the speed of the hydraulic cylinder to adjust the speed of the hydraulic cylinder to adjust the speed of the hydraulic cylinder to adjust the speed of the hydraulic cylinder to adjust the speed of the hydraulic cylinder to adjust the speed of the hydraulic cylinder to adjust the speed of the hydraulic cylinder to adjust the speed of the hydraulic cylinder to adjust the speed of the

[0012] According to the above technical solution, the outer wall of the rotating plate is fixedly connected to an extension rod, and the end of the extension rod away from the rotating plate is fixedly connected to a slider 1. When the rotating plate rotates, the extension rod will change the state of the hydraulic rod 2 through the slider 1.

[0013] According to the above technical solution, the inner wall of the slide groove one is movably connected to a movable plate, the end of the hydraulic rod two away from the connecting plate two is fixedly connected to the movable plate, the outer wall of the movable plate is provided with a slide groove two, the inner wall of the slide groove two is movably connected to the slider one, and the movement of the movable plate will change the state of the hydraulic rod two.

[0014] According to the above technical solution, the adjustment assembly includes a connecting plate three, the side of the rotating plate away from the motor two is fixedly connected to the connecting plate three, the side of the connecting plate three away from the rotating plate is fixedly connected to the right-angle plate two, the end of the right-angle plate two away from the connecting plate three is fixedly connected to the slider two, the end of the connecting plate three away from the rotating plate is fixedly connected to the sliding column two, and the side of the connecting plate three away from the rotating plate is provided with a connecting plate four, the outer wall of the connecting plate four is provided with a circular hole two, the outer wall of the connecting plate four is provided with a sliding groove three, the inner wall of the sliding groove three is movably connected to the slider two, the inner wall of the circular hole two is movably connected to the sliding column two, the sliding column two and the slider two are used to limit the range of movement of the connecting plate four, by providing the adjustment assembly, when the device is adjusted in the horizontal direction, as the posture of the detection head in the vertical direction is adjusted, the position of the detection head is automatically compensated in the opposite direction of the deflection, and the two position changes do not interfere with each other in space, so that the device can achieve multi-dimensional posture adjustment while ensuring the consistency of the detection point position, further improving the accuracy and reliability of the device detection.

[0015] According to the above technical solution, the end of the connecting plate four away from the connecting plate three is fixedly connected to the motor three, and the end of the connecting plate four away from the connecting plate three is rotatably connected to the connecting frame through a bearing. The output end of the motor three is rotatably connected to the connecting frame, and the bottom of the connecting frame is fixedly connected to the extension rod, and the outer wall of the extension rod is rotatably connected to the connecting rod through a bearing. The end of the connecting rod away from the extension rod is rotatably connected to the connecting plate four through a bearing, and the inner wall of the connecting frame is fixedly connected to the detection head, and the motor three is used to control the deflection angle of the detection head.

[0016] Compared with the prior art, the present invention provides a wind turbine blade detection device with the following beneficial effects:

[0017] 1. The present invention sets up a detection mechanism. When the blade curvature changes, it can control the front detection head to respond quickly and adjust the angle. There is no need to rely on the overall movement of the robotic arm to adjust the posture of the detection head like traditional equipment. This design enables the equipment to complete the detection task quickly and accurately, improving detection efficiency and accuracy.

[0018] 2. The present invention sets an auxiliary component. When the device adjusts the vertical angle, the detection head is adjusted in the vertical direction and its position is automatically compensated in the opposite direction of the deflection. Through the adaptive adjustment characteristics of the hydraulic linkage structure, this compensatory movement can maintain the detection point of the detection head at the same position, effectively avoiding the detection position offset problem caused by the change of the detection head angle, and ensuring the accuracy and reliability of the equipment detection results from the mechanical structure level.

[0019] 3. The present invention sets an adjustment component. When the device adjusts the horizontal angle, as the detection head adjusts its vertical posture, the detection head position automatically compensates and moves in the opposite direction of the deflection, and the two position changes do not interfere with each other in space. This enables the device to achieve multi-dimensional posture adjustment while ensuring the consistency of the detection point position, further improving the accuracy and reliability of the device detection.

[0020] 4. The present invention can dynamically adjust the distance of the detection head by setting up a detection mechanism. When the curvature of the wind turbine blade changes during the detection process, the mechanism can adjust the distance between the detection head and the blade surface in real time to avoid fluctuations in the distance between the detection head and the blade surface due to changes in curvature, thereby further improving the detection accuracy and reliability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 Schematic diagram of the detection mechanism of the present invention Figure 1 ;

[0024] Figure 3 Schematic diagram of the detection mechanism of the present invention Figure 2 ;

[0025] Figure 4 Schematic diagram of the detection mechanism of the present invention Figure 3 ;

[0026] Figure 5 Schematic diagram of the detection mechanism of the present invention Figure 4 ;

[0027] Figure 6 is a schematic diagram of the auxiliary components of the present invention;

[0028] Figure 7 Schematic diagram of the adjustment component of the present invention Figure 1 ;

[0029] Figure 8 Schematic diagram of the adjustment component of the present invention Figure 2 ;

[0030] Figure 9 Schematic diagram of the adjustment component of the present invention Figure 3 .

[0031] In the figure: 1. Wall climbing device; 101. Robotic arm; 102. Base 1; 103. Motor 1; 2. Detection mechanism; 201. Base 2; 202. Round hole 1; 203. Push rod; 204. Connecting plate 1; 205. Sliding column 1; 206. Right-angle plate 1; 207. Connector; 208. Motor 2; 209. Rotating plate; 2010. Extension rod; 2011. Sliding block 1; 2012. Slide 1; 21. Auxiliary components; 211. T-plate; 21 2. Hydraulic rod one; 213. Connecting pipe; 214. Connecting plate two; 215. Hydraulic rod two; 216. Movable plate; 217. Slide groove two; 22. Adjustment assembly; 221. Connecting plate three; 222. Right-angle plate two; 223. Sliding block two; 224. Sliding column two; 225. Connecting plate four; 226. Round hole two; 227. Slide groove three; 228. Motor three; 229. Connecting frame; 2210. Eccentric plate; 2211. Connecting rod; 2212. Detection head. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but are not to be construed as limiting the present invention.

[0034] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0035] Example 1: See Figure 1-Figure 5 The present invention provides a technical solution: a wind turbine blade detection device, including a wall climbing device 1, the top of the wall climbing device 1 is rotatably connected to a mechanical arm 101 via a bearing, in order to ensure that the angle of the detection head 2212 is perpendicular to the curvature of the blade during detection, a detection mechanism 2 is provided, the end of the mechanical arm 101 away from the wall climbing device 1 is rotatably connected to a base 102 via a bearing, the outer wall of the base 102 is fixedly connected to a motor 103, the side of the base 102 away from the motor 103 is rotatably connected to the detection mechanism 2 via a bearing, and the output end of the motor 103 is fixedly connected to the detection mechanism 2;

[0036] The detection mechanism 2 includes: a base 201, the outer wall of the base 201 is rotatably connected to the base 1 102, the output end of the motor 103 is fixedly connected to the base 201, a circular hole 202 is opened on the side of the base 201 away from the base 1 102, a push rod 203 is fixedly connected to the inner wall of the base 201, and the end of the push rod 203 away from the base 201 is fixedly connected to the connecting plate 1 204, the push rod 203 is used to control the extension and contraction of the detection mechanism 2, and the circular hole The inner wall of the first 202 is movably connected with a sliding column 205, and the side of the sliding column 205 away from the base 201 is fixedly connected to the connecting plate 1 204. The inner wall of the connecting plate 1 204 is movably connected with a right-angle plate 206. The outer wall of the right-angle plate 206 is fixedly connected with an auxiliary component 21. The outer wall of the right-angle plate 206 is provided with a sliding groove 2012. The sliding column 205 is used to assist the connection effect of the push rod 203 and the connecting plate 1 204. The right-angle plate 206 The outer wall is fixedly connected with a connecting head 207, and the end of the right-angle plate 1 206 away from the connecting plate 1 204 is fixedly connected with a motor 208, and the side of the right-angle plate 1 206 away from the motor 208 is rotatably connected to a rotating plate 209 through a bearing, and the output end of the motor 208 is fixedly connected to the rotating plate 209, and the end of the rotating plate 209 away from the right-angle plate 1 206 is fixedly connected with the adjustment component 22. When the vertical angle of the detection head 2212 needs to be adjusted, the driving motor 208 is operated to drive the rotating plate 209 to rotate, and the rotating rotating plate 209 will drive the adjustment component 22 to rotate as a whole, thereby realizing the adjustment of the deflection angle of the detection head 2212; at the same time, the rotation of the rotating plate 209 will also change the height position of the right-angle plate 1 206 relative to the connecting plate 1 204 through the linkage mechanism of the auxiliary component 21, thereby synchronously adjusting the vertical height of the detection head 2212, and realizing the coordinated adjustment of the angle and height of the detection head.

[0037] Example 2: Please refer to Figure 6-Figure 9On the basis of the first embodiment, the present invention provides a technical solution: in order to avoid the detection position of the detection head 2212 from being offset after the angle of the detection head 2212 changes, an auxiliary component 21 and an adjustment component 22 are designed. The auxiliary component 21 includes a second connecting plate 214. The bottom of the second connecting plate 214 is fixedly connected to the right-angle plate 1 206. The inner wall of the second connecting plate 214 is fixedly connected to a second hydraulic rod 215. The outer wall of the connecting plate 1 204 is fixedly connected to a T-plate 211. The T-plate 211 is fixedly connected to the hydraulic rod 1 212 away from the inner wall of the connecting plate 1 204. The rear side of the hydraulic rod 215 is fixedly connected to a connecting pipe 213. The end of the connecting pipe 213 away from the hydraulic rod 215 is fixedly connected to the hydraulic rod 1 212. The end of the hydraulic rod 1 212 away from the T-plate 211 is fixedly connected to the connecting head 207. When the hydraulic rod 215 changes, it will be driven by the connecting pipe 213 When the hydraulic rod 1 212 changes, the outer wall of the rotating plate 209 is fixedly connected to the extension rod 2010, and the end of the extension rod 2010 away from the rotating plate 209 is fixedly connected to the slider 1 2011. When the rotating plate 209 rotates, the extension rod 2010 will change the state of the hydraulic rod 215 through the slider 1 2011, and the inner wall of the slide 1 2012 is movably connected to the movable plate 216. The end of the hydraulic rod 215 away from the connecting plate 214 is fixedly connected to the movable plate 216. The outer wall of the movable plate 216 is provided with a slide 217, and the inner wall of the slide 217 is movably connected to the slider 1 2011. When the motor 208 drives the rotating plate 209 to rotate, the extension rods 2010 on both sides of the rotating plate 209 rotate synchronously, and then drive the movable plates 216 on the upper and lower sides to move in opposite directions along the slide 1 2012 through the slider 1 2011 at the end of the extension rod 2010. The movement of movable plate 216 directly changes the extension and retraction state of hydraulic rod 215. This state change forms a hydraulic linkage through connecting tube 213. When hydraulic rod 215 extends or contracts, it replenishes or draws hydraulic oil from hydraulic rod 1 212 through connecting tube 213, thereby driving the movable end of hydraulic rod 1 212 to rise and fall accordingly. The lifting and lowering movement of hydraulic rod 1 212 is transmitted to right-angle plate 1 206 via connector 207, changing its vertical height on connecting plate 1 204, ultimately achieving dynamic adjustment of the vertical height of detection head 2212.

[0038] The adjustment component 22 includes a connecting plate 3 221, a side of the rotating plate 209 away from the motor 208 is fixedly connected to the connecting plate 3 221, a side of the connecting plate 3 221 away from the rotating plate 209 is fixedly connected to the right-angle plate 222, an end of the right-angle plate 222 away from the connecting plate 3 221 is fixedly connected to the slider 2 223, an end of the connecting plate 3 221 away from the rotating plate 209 is fixedly connected to the sliding column 224, a connecting plate 4 225 is provided on the side of the connecting plate 3 221 away from the rotating plate 209, a circular hole 226 is opened on the outer wall of the connecting plate 4 225, a sliding groove 3 227 is opened on the outer wall of the connecting plate 4 225, the inner wall of the sliding groove 3 227 is movably connected to the slider 223, the inner wall of the circular hole 226 is movably connected to the sliding column 224, and the sliding column 224 is movably connected to the slider The second 223 is used to limit the range of motion of the fourth connecting plate 225. The end of the fourth connecting plate 225 away from the third connecting plate 221 is fixedly connected to the third motor 228. The end of the fourth connecting plate 225 away from the third connecting plate 221 is rotatably connected to the connecting frame 229 via a bearing. The output end of the third motor 228 is rotatably connected to the connecting frame 229. The bottom of the connecting frame 229 is fixedly connected to the extension rod 2010. The outer wall of the extension rod 2010 is rotatably connected to the connecting rod 2211 via a bearing. The end of the connecting rod 2211 away from the extension rod 2010 is rotatably connected to the fourth connecting plate 225 via a bearing. The inner wall of the connecting frame 229 is fixedly connected to the detection head 2212. When the horizontal position of the detection head 2212 needs to be adjusted, the third motor 228 is first driven to operate, causing the connecting frame 229 to rotate. The rotation of the connecting frame 229 directly drives the detection head 2212 to rotate synchronously, and at the same time, the eccentric plate 2210 at the bottom of the connecting frame 229 rotates synchronously with it. The rotational motion of eccentric plate 2210 is transmitted to connecting plate 4 225 via connecting rod 2211, forcing connecting plate 4 225 to move horizontally. During this process, connecting plate 4 225 achieves horizontal position adjustment through the sliding fit between circular hole 226 and sliding post 224, and the guidance and constraint between sliding groove 3 227 and slider 223, completing the dynamic horizontal position calibration of detection head 2212.

[0039] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A wind turbine blade detection device, comprising a wall climbing device (1), wherein the top of the wall climbing device (1) is rotatably connected to a mechanical arm (101) via a bearing, and is characterized in that: The end of the mechanical arm (101) away from the wall climbing device (1) is rotatably connected to the base one (102) via a bearing, the outer wall of the base one (102) is fixedly connected to the motor one (103), the side of the base one (102) away from the motor one (103) is rotatably connected to the detection mechanism (2) via a bearing, and the output end of the motor one (103) is fixedly connected to the detection mechanism (2); The detection mechanism (2) comprises: Base 2 (201), the outer wall of the base 2 (201) is rotatably connected to the base 1 (102), the output end of the motor 1 (103) is fixedly connected to the base 2 (201), a circular hole 1 (202) is provided on the side of the base 2 (201) away from the base 1 (102), the inner wall of the base 2 (201) is fixedly connected to a push rod (203), the end of the push rod (203) away from the base 2 (201) is fixedly connected to a connecting plate 1 (204), the push rod (203) is used to control the extension and contraction of the detection mechanism (2), the circular hole 1 (2 02) is movably connected to a sliding column 1 (205), the sliding column 1 (205) is fixedly connected to a connecting plate 1 (204) on a side away from the base 2 (201), the inner wall of the connecting plate 1 (204) is movably connected to a right-angle plate 1 (206), the outer wall of the right-angle plate 1 (206) is fixedly connected to an auxiliary component (21), the outer wall of the right-angle plate 1 (206) is provided with a sliding groove 1 (2012), the sliding column 1 (205) is used to assist the connection effect of the push rod (203) and the connecting plate 1 (204), the right-angle plate 1 (206) The outer wall of the right angle plate (206) is fixedly connected to a connector (207), one end of the right angle plate (206) away from the connecting plate (204) is fixedly connected to the motor (208), the side of the right angle plate (206) away from the motor (208) is rotatably connected to the rotating plate (209) through a bearing, the output end of the motor (208) is fixedly connected to the rotating plate (209), the end of the rotating plate (209) away from the right angle plate (206) is fixedly connected to the adjustment component (22), and the motor (208) is used to control the deflection angle of the adjustment component (22); The auxiliary component (21) includes a second connecting plate (214), the bottom of the second connecting plate (214) is fixedly connected to the right-angle plate (206), the inner wall of the second connecting plate (214) is fixedly connected to the second hydraulic rod (215), the outer wall of the first connecting plate (204) is fixedly connected to the T-shaped plate (211), the T-shaped plate (211) is fixedly connected to the first hydraulic rod (212) away from the inner wall of the first connecting plate (204), the rear side of the second hydraulic rod (215) is fixedly connected to the connecting pipe (213), the end of the connecting pipe (213) away from the second hydraulic rod (215) is fixedly connected to the first hydraulic rod (212), the end of the first hydraulic rod (212) away from the T-shaped plate (211) is fixedly connected to the connector (207), and when the second hydraulic rod (215) changes, the hydraulic pressure is driven through the connecting pipe (213). The pressure rod 1 (212) changes, and the outer wall of the rotating plate (209) is fixedly connected to an extension rod (2010), and the end of the extension rod (2010) away from the rotating plate (209) is fixedly connected to a slider 1 (2011). When the rotating plate (209) rotates, the extension rod (2010) changes the state of the hydraulic rod 2 (215) through the slider 1 (2011). The inner wall of the slide 1 (212) is movably connected to the movable plate (216), and the end of the hydraulic rod 2 (215) away from the connecting plate 2 (214) is fixedly connected to the movable plate (216). The outer wall of the movable plate (216) is provided with a slide 2 (217), and the inner wall of the slide 2 (217) is movably connected to the slider 1 (2011). The movement of the movable plate (216) changes the state of the hydraulic rod 2 (215).

2. The wind turbine blade detection device according to claim 1, characterized in that: The adjustment assembly (22) includes a connecting plate three (221), a side of the rotating plate (209) away from the motor two (208) is fixedly connected to the connecting plate three (221), a side of the connecting plate three (221) away from the rotating plate (209) is fixedly connected to a right-angle plate two (222), an end of the right-angle plate two (222) away from the connecting plate three (221) is fixedly connected to a slider two (223), an end of the connecting plate three (221) away from the rotating plate (209) is fixedly connected to a sliding column two (224), A connecting plate four (225) is provided on the side of the connecting plate three (221) away from the rotating plate (209), the outer wall of the connecting plate four (225) is provided with a circular hole two (226), the outer wall of the connecting plate four (225) is provided with a sliding groove three (227), the inner wall of the sliding groove three (227) is movably connected to the slider two (223), the inner wall of the circular hole two (226) is movably connected to the sliding column two (224), and the sliding column two (224) and the slider two (223) are used to limit the range of movement of the connecting plate four (225).

3. The wind turbine blade detection device according to claim 2, characterized in that: The end of the connecting plate four (225) away from the connecting plate three (221) is fixedly connected to the motor three (228), the end of the connecting plate four (225) away from the connecting plate three (221) is rotatably connected to the connecting frame (229) through a bearing, the output end of the motor three (228) is rotatably connected to the connecting frame (229), the bottom of the connecting frame (229) is fixedly connected to the extension rod (2010), the outer wall of the extension rod (2010) is rotatably connected to the connecting rod (2211) through a bearing, the end of the connecting rod (2211) away from the extension rod (2010) is rotatably connected to the connecting plate four (225) through a bearing, the inner wall of the connecting frame (229) is fixedly connected to the detection head (2212), and the motor three (228) is used to control the deflection angle of the detection head (2212).

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