A climbable flaw detection device and flaw detection method for a wind turbine drum frame

Abstract

The present invention relates to the technical field of wind turbine drum frames, and discloses a climbable flaw detection device and flaw detection method for wind turbine drum frames, comprising an arc frame 1, an insertion hole is provided at the end of the arc frame 1, a plug plate is plugged into the inner wall of the insertion hole, an arc frame 2 is fixedly connected to the end of the plug plate away from the insertion hole, a slide groove is provided on the inner wall of the arc frame 1 and the arc frame 2, positioning grooves are provided inside the arc frame 1 and the arc frame 2, and a screw is threadedly connected to the surface of the arc frame 1. The spring of the present invention uses the support of the slider to push the telescopic rod to extend outward, and the telescopic rod pushes the climbing crawler to squeeze the surface of the drum frame when extending through the center frame, thereby improving the stability of the climbing crawler when climbing, and the starting motor drives the meshing wheel to rotate inside the climbing crawler, and the meshing wheel drives the driving frame to rotate when rotating, and the driving frame can drive the climbing crawler to rotate.

Description

Technical Field

[0001] The invention relates to the technical field of wind turbine drum racks, and in particular to a climbable flaw detection device and a flaw detection method for wind turbine drum racks. Background Art

[0002] A wind turbine is an electrical device that converts wind energy into mechanical work, which drives the rotor to rotate and finally outputs alternating current. A wind turbine generally consists of a wind rotor, a generator (including a device), a stabiliser (tail), a tower, a speed limit safety mechanism and an energy storage device. The working principle of a wind turbine is relatively simple. The wind rotor rotates under the action of wind force, and it converts the kinetic energy of the wind into the mechanical energy of the wind rotor shaft. The generator rotates and generates electricity under the drive of the wind rotor shaft. In a broad sense, wind energy is also solar energy, so it can also be said that a wind turbine is a heat energy generator that uses the sun as a heat source and the atmosphere as a working medium.

[0003] Wind turbines need to be supported by a tube frame during installation. The surface of the tube frame needs to be inspected regularly to avoid scratches on the surface of the tube frame that may cause bending of the tube frame. Currently, the tube frame is generally inspected by inspectors, who need to use climbing tools to climb on the surface of the tube frame. The manual climbing method has low inspection efficiency and is dangerous. Summary of the invention

[0004] The object of the present invention is to provide a climbable flaw detection device and a flaw detection method for a wind turbine drum frame, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions: The present invention discloses a climbable flaw detection device and flaw detection method for a wind turbine drum frame, comprising an arc frame 1, an insertion hole is provided at the end of the arc frame 1, a plug plate is plugged into the inner wall of the insertion hole, an end of the plug plate away from the insertion hole is fixedly connected to an arc frame 2, a slide groove is provided on the inner wall of the arc frame 1 and the arc frame 2, positioning grooves are provided inside the arc frame 1 and the arc frame 2, a screw is threadedly connected to the surface of the arc frame 1, a climbing component is provided at one end of the arc frame 1 and the arc frame 2 that are close to each other, an extrusion component is provided inside the slide groove, and detection components are provided on the surfaces of the arc frame 1 and the arc frame 2; The yoke is provided with a plurality of movable parts, and the movable part is provided with a movable part, and the movable part has a movable part which is connected with the movable part and the movable part is connected with the movable part.

[0006] Furthermore, two positioning grooves are respectively arranged inside the arc frame 1 and the arc frame 2, and the two positioning grooves are symmetrically arranged with the slide groove as the center. The end of the screw rod passes through the arc frame 1 and extends to the inside of the socket, and the surface of the screw rod is threadedly connected to the inner wall of the plug plate.

[0007] Furthermore, the positioning plate is arranged at the inner center of the slide slot, the surface of the positioning plate is slidably connected to the inner wall of the positioning slot, the telescopic rod is arranged at the end of the slider away from the slide slot, the end of the spring away from the slider is fixedly connected to the surface of the bent plate, and the end of the support rod away from the center frame extends to the outer end of the arc frame.

[0008] Furthermore, the meshing wheels mesh with each other, the surface of the driving frame meshes with the inner wall of the climbing crawler, the inner wall of the climbing crawler contacts with the surface of the center frame, and the climbing crawler is symmetrically arranged with the center frame as the center.

[0009] Furthermore, the extrusion component includes a tripod, the end of the tripod is hinged to the telescopic end of the electric push rod, the center of the tripod is hinged with a limit rod, the end of the limit rod is fixedly connected to a bracket, the end of the bracket is fixedly connected to a pull rod, the end of the pull rod away from the bracket is fixedly connected to a rotating rod, and the end of the rotating rod is rotatably connected to the top of the bent plate.

[0010] Furthermore, two brackets are arranged on the surface of the limiting rod, and the two brackets are symmetrically arranged with the limiting rod as the center, and the rotating rod is arranged at one end of the climbing crawler close to the arc frame.

[0011] Furthermore, the detection component includes an arc groove plate, the arc groove plate is fixedly connected to the surface of an arc frame, the surface of the arc groove plate is slidably connected to a slide, the surface of the slide is fixedly connected to a support plate, the end of the support plate is fixedly connected to an extension rod, the end of the extension rod away from the support plate is fixedly connected to a detector, the top of the slide is fixedly connected to a top plate, the bottom of the top plate is fixedly connected to a motor, the output end of the motor is fixedly connected to a gear, and the surface of the gear is meshed with the inner wall of the arc groove plate.

[0012] Furthermore, two extension rods are arranged on the surface of the support plate, the two extension rods are symmetrically arranged with the support plate as the center, and the ends of the two extension rods away from the support plate are oppositely arranged, and the ends of the extension rods away from the support plate extend to the outer end of the arc frame one.

[0013] Furthermore, a flaw detection method for a climbable flaw detection device for a wind turbine pedestal comprises the following steps: S1: After the inner wall of the arc frame 1 contacts the surface of the cartridge frame, the arc frame 2 is inserted into the inside of the insertion hole through the plug plate, and the screw fixes the plug plate inside the insertion hole to connect and fix the arc frame 1 and the arc frame 2, so that the cartridge frame is located inside the arc frame 1 and the arc frame 2; S2: The starting motor drives the meshing wheel to rotate inside the climbing crawler. The meshing wheel drives the driving frame to rotate when rotating, and the driving frame can drive the climbing crawler to rotate, so as to climb on the surface of the drum frame by rotating; S3: When the rotating rod moves, it pushes the center frame to move through the bent plate, so that the center frame can push the climbing crawler to squeeze the surface of the drum frame, so as to avoid looseness between the climbing crawler and the drum frame and cause it to fall off; S4: When the gear rotates, it utilizes the meshing with the arc groove plate to push the slide to move. The slide slides on the surface of the arc groove plate, thereby improving the stability of the slide when moving.

[0014] The present invention has the following beneficial effects: The cam is then moved in a direction that the cam is in contact with the outer surface of the support frame, and the cam is ...

[0015] The electric push rod of the present invention squeezes the tripod to produce deformation when it contracts, and the tripod pushes the limit rod to move toward the outer end of the slide slot. The limit rod pushes the rotating rod to move toward the end away from the slide slot through the connection between the bracket and the pull rod. When moving, the rotating rod pushes the center frame to move through the bent plate, so that the center frame can push the climbing crawler to squeeze the surface of the drum frame, thereby avoiding looseness between the climbing crawler and the drum frame and causing it to fall off.

[0016] When the arc frame 1 and the arc frame 2 of the present invention move upward, the motor drives the gear to rotate. When the gear rotates, it utilizes the meshing with the arc groove plate to push the slide to move. The slide slides on the surface of the arc groove plate, thereby improving the stability of the slide when moving. When the slide moves, the detector is driven to rotate through the extension rod, so that the detector can perform flaw detection on a circle of the cylinder frame.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the cross-sectional structure of the arc frame of the present invention; Figure 3 This is a schematic diagram of the overall structure of the climbing component of the present invention; Figure 4It is another structural schematic diagram of the climbing component of the present invention; Figure 5 It is a schematic diagram of the overall structure of the extruded component of the present invention; Figure 6 It is a schematic diagram of the overall structure of the detection component of the present invention; Figure 7 The present invention is a schematic flow chart of a flaw detection method of a climbable flaw detection device for a wind turbine drum frame.

[0020] In the accompanying drawings, the components represented by the reference numerals are listed as follows: In the figure: 1. arc frame 1; 2. arc frame 2; 3. plug plate; 4. socket; 5. screw; 6. slide groove; 7. positioning groove; 8. climbing component; 9. extrusion component; 10. detection component; 20. slider; 21. positioning plate; 22. spring; 23. center frame; 24. telescopic rod; 205. positioning plate; 25. climbing crawler; 26. electric push rod; 27. bending plate; 28. movable plate; 29. ​​fixed frame; 30. support rod; 31. driving frame; 32. meshing wheel; 33. motor; 34. stabilizer bar; 40. tripod; 41. limit rod; 42. bracket; 43. pull rod; 44. rotating rod; 50. arc groove plate; 51. slide frame; 52. support plate; 53. extension rod; 54. detector; 55. top plate; 56. motor; 57. gear. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figure 1-Figure 7 As shown, the present invention is a climbable flaw detection device and flaw detection method for a wind turbine drum frame, comprising an arc frame 1, an insertion hole 4 is provided at the end of the arc frame 1, a plug plate 3 is plugged into the inner wall of the plug hole 4, an arc frame 2 2 is fixedly connected to the plug plate 3 at one end away from the insertion hole 4, a slide groove 6 is provided on the inner wall of the arc frame 1 and the arc frame 2 respectively, a positioning groove 7 is provided inside the arc frame 1 and the arc frame 2 respectively, a screw 5 is threadedly connected to the surface of the arc frame 1, a climbing component 8 is provided at one end of the arc frame 1 and the arc frame 2 that is close to each other, an extrusion component 9 is provided inside the slide groove 6, and a detection component 10 is provided on the surface of the arc frame 1 and the arc frame 2 respectively; The climbing component 8 includes a slider 20, which is slidably connected to the inner wall of the slide groove 6, a positioning plate 21 is fixedly connected to the end of the slider 20, a telescopic rod 24 is fixedly connected to the surface of the slider 20, an end of the telescopic rod 24 away from the slider 20 is fixedly connected to the center frame 23, an end of the center frame 23 is fixedly connected to a support rod 30, an end of the support rod 30 away from the center frame 23 is fixedly connected to a fixed frame 29, an end of the fixed frame 29 is fixedly connected to a motor 33, a surface of the fixed frame 29 is fixedly connected to a stabilizing rod 34, and the stabilizing rod 34 is away from the fixed frame 2 One end of the drive frame 31 is fixedly connected to the drive frame 31, and the surface of the drive frame 31 and the output end of the motor 33 are fixedly connected to the meshing wheel 32. The inner wall of the slide groove 6 is fixedly connected to the positioning plate 205, and the surface of the positioning plate 205 is fixedly connected to the electric push rod 26. After the inner wall of the arc frame 1 of the present invention contacts the surface of the cylinder frame, the arc frame 22 is inserted into the inside of the jack 4 through the plug plate 3, and the screw 5 fixes the plug plate 3 inside the jack 4 to connect and fix the arc frame 1 and the arc frame 2, so that the cylinder frame is located inside the arc frame 1 and the arc frame 2. At this time, the climbing The surface of the crawler 25 will contact the surface of the drum frame, and the spring 22 uses the support of the slider 20 to push the telescopic rod 24 to extend outward. The telescopic rod 24 extends to push the climbing crawler 25 through the center frame 23 to squeeze the surface of the drum frame, thereby improving the stability of the climbing crawler 25 when climbing. The starting motor 33 drives the meshing wheel 32 to rotate inside the climbing crawler 25. The meshing wheel 32 drives the driving frame 31 to rotate when rotating, and the driving frame 31 can push the climbing crawler 25 to rotate, thereby climbing on the surface of the drum frame by rotating, and the electric push rod 26 is advancing. When the line is retracted, the movable plate 28 pulls the slider 20 through the electric push rod 26 to move closer to each other, so that the slider 20 can push the climbing track 25 to squeeze the surface of the drum frame through the telescopic rod 24, further improving the stability of the climbing track 25 during operation. The telescopic end of the electric push rod 26 is hinged with the movable plate 28, and the end of the movable plate 28 away from the electric push rod 26 is hinged to the slider 20. The surface of the slider 20 is fixedly connected with a spring 22, the surface of the driving frame 31 is meshed with the climbing track 25, and the surface of the center frame 23 is fixedly connected with a bent plate 27.

[0023] Two positioning grooves 7 are respectively arranged inside the arc frame 1 and the arc frame 2, and the two positioning grooves 7 are symmetrically arranged with the slide groove 6 as the center. The end of the screw 5 passes through the arc frame 1 and extends to the inside of the socket 4. The surface of the screw 5 is threadedly connected with the inner wall of the plug plate 3.

[0024] The positioning plate 205 is arranged at the inner center of the slide groove 6, the surface of the positioning plate 21 is slidably connected to the inner wall of the positioning groove 7, the telescopic rod 24 is arranged at the end of the slider 20 away from the slide groove 6, the end of the spring 22 away from the slider 20 is fixedly connected to the surface of the bent plate 27, and the end of the support rod 30 away from the center frame 23 extends to the outer end of the arc frame 1.

[0025] The meshing wheels 32 mesh with each other, the surface of the driving frame 31 meshes with the inner wall of the climbing crawler 25, the inner wall of the climbing crawler 25 contacts the surface of the center frame 23, and the climbing crawler 25 is symmetrically arranged with the center frame 23 as the center.

[0026] The extrusion component 9 includes a tripod 40, the end of the tripod 40 is hinged to the telescopic end of the electric push rod 26, the center of the tripod 40 is hinged with a limit rod 41, the end of the limit rod 41 is fixedly connected to a bracket 42, and the end of the bracket 42 is fixedly connected to a pull rod 43. The electric push rod 26 of the present invention squeezes the tripod 40 to produce deformation when it contracts, and the tripod 40 pushes the limit rod 41 to move toward the outer end of the slide groove 6. The limit rod 41 pushes the rotating rod 44 to move toward the end away from the slide groove 6 through the connection between the bracket 42 and the pull rod 43. When moving, the rotating rod 44 pushes the center frame 23 to move through the bent plate 27, so that the center frame 23 can push the climbing track 25 to squeeze the surface of the drum frame to avoid loosening between the climbing track 25 and the drum frame and causing it to fall off. The end of the pull rod 43 away from the bracket 42 is fixedly connected to the rotating rod 44, and the end of the rotating rod 44 is rotatably connected to the top of the bent plate 27.

[0027] Two brackets 42 are arranged on the surface of the limiting rod 41. The two brackets 42 are symmetrically arranged with the limiting rod 41 as the center. The rotating rod 44 is arranged at one end of the climbing crawler 25 close to the arc frame 1.

[0028] The detection component 10 includes an arc groove plate 50, which is fixedly connected to the surface of the arc frame 1, and the surface of the arc groove plate 50 is slidably connected to a slide 51, and the surface of the slide 51 is fixedly connected to a support plate 52, and the end of the support plate 52 is fixedly connected to an extension rod 53, and the end of the extension rod 53 away from the support plate 52 is fixedly connected to a detector 54, and the top of the slide 51 is fixedly connected to a top plate 55. When the arc frame 1 and the arc frame 2 of the present invention move upward, the motor 56 will drive the gear 57 The gear 57 rotates, and the gear 57 utilizes the meshing with the arc groove plate 50 to push the slide 51 to move. The slide 51 slides on the surface of the arc groove plate 50, thereby improving the stability of the slide 51 when moving. When the slide 51 moves, the extension rod 53 drives the detector 54 to rotate, so that the detector 54 can perform flaw detection on a circle of the drum frame. The bottom of the top plate 55 is fixedly connected to the motor 56, and the output end of the motor 56 is fixedly connected to the gear 57. The surface of the gear 57 meshes with the inner wall of the arc groove plate 50.

[0029] Two extension rods 53 are arranged on the surface of the support plate 52. The two extension rods 53 are symmetrically arranged with the support plate 52 as the center, and the ends of the two extension rods 53 away from the support plate 52 are oppositely arranged. The ends of the extension rods 53 away from the support plate 52 extend to the outer end of the arc frame 1.

[0030] A flaw detection method of a climbable flaw detection device for a wind turbine drum frame, comprising the following steps: S1: After the inner wall of the arc frame 1 contacts the surface of the cartridge holder, the arc frame 2 is inserted into the inside of the insertion hole 4 through the plug plate 3, and the screw 5 fixes the plug plate 3 inside the insertion hole 4 to connect and fix the arc frame 1 and the arc frame 2, so that the cartridge holder is located inside the arc frame 1 and the arc frame 2; S2: The motor 33 is started to drive the meshing wheel 32 to rotate inside the climbing crawler 25. The meshing wheel 32 drives the driving frame 31 to rotate when rotating. The driving frame 31 can then push the climbing crawler 25 to rotate, thereby climbing on the surface of the drum frame by rotating; S3: When the rotating rod 44 moves, it pushes the center frame 23 to move through the bent plate 27, so that the center frame 23 can push the climbing crawler 25 to squeeze the surface of the drum frame, so as to prevent the climbing crawler 25 from loosening and falling off from the drum frame; S4: When the gear 57 rotates, it utilizes the meshing with the arc groove plate 50 to push the slide 51 to move. The slide 51 slides on the surface of the arc groove plate 50, thereby improving the stability of the slide 51 when moving.

[0031] When in use, after the inner wall of the arc frame 1 contacts the surface of the drum frame, the arc frame 2 2 is inserted into the inside of the socket 4 through the plug plate 3, and the screw 5 fixes the plug plate 3 inside the socket 4 to connect and fix the arc frame 1 and the arc frame 2, so that the drum frame is located inside the arc frame 1 and the arc frame 2. At this time, the surface of the climbing crawler 25 will contact the surface of the drum frame, and the spring 22 uses the support of the slider 20 to push the telescopic rod 24 to extend outward. The telescopic rod 24 extends to push the climbing crawler through the center frame 23. The climbing crawler 25 is pressed against the surface of the drum frame, thereby improving the stability of the climbing crawler 25 when climbing, and the starting motor 33 drives the meshing wheel 32 to rotate inside the climbing crawler 25. The meshing wheel 32 drives the driving frame 31 to rotate when rotating, and the driving frame 31 can push the climbing crawler 25 to rotate, so as to climb on the surface of the drum frame by rotating. When the electric push rod 26 is retracted, the movable plate 28 pulls the slider 20 through the electric push rod 26 to move closer to each other, so that the slider 20 can be pushed by the telescopic rod 24. The movable climbing crawler 25 squeezes the surface of the drum frame, further improving the stability of the climbing crawler 25 during operation. The electric push rod 26 squeezes the tripod 40 to produce deformation when it shrinks. The tripod 40 pushes the limit rod 41 to move toward the outer end of the slide groove 6. The limit rod 41 pushes the rotating rod 44 to move toward the end away from the slide groove 6 through the connection between the bracket 42 and the pull rod 43. When the rotating rod 44 moves, it pushes the center frame 23 to move through the bent plate 27, so that the center frame 23 can push the climbing crawler 25 to move the surface of the drum frame. The climbing crawler 25 and the drum frame are squeezed to avoid looseness and falling off. When the arc frame 1 and the arc frame 2 move upward, the motor 56 drives the gear 57 to rotate. When the gear 57 rotates, it utilizes the engagement with the arc groove plate 50 to push the slide 51 to move. The slide 51 slides on the surface of the arc groove plate 50 to improve the stability of the slide 51 when moving. When the slide 51 moves, the detector 54 is driven to rotate through the extension rod 53, so that the detector 54 can perform flaw detection on a circle of the drum frame.

[0032] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A climbable flaw detection device for a wind turbine drum frame, comprising an arc frame (1), characterized in that: The end of the arc frame 1 (1) is provided with a plug hole (4), the inner wall of the plug hole (4) is plugged with a plug plate (3), the end of the plug plate (3) away from the plug hole (4) is fixedly connected to the arc frame 2 (2), the inner walls of the arc frame 1 (1) and the arc frame 2 (2) are respectively provided with a slide groove (6), the inside of the arc frame 1 (1) and the arc frame 2 (2) are respectively provided with a positioning groove (7), the surface of the arc frame 1 (1) is threadedly connected with a screw rod (5), the end of the arc frame 1 (1) and the arc frame 2 (2) close to each other is provided with a climbing component (8), the inside of the slide groove (6) is provided with a pressing component (9), and the surface of the arc frame 1 (1) and the arc frame 2 (2) are respectively provided with a detection component (10); The climbing component (8) comprises a slider (20), wherein the slider (20) is slidably connected to the inner wall of the slide groove (6), the end of the slider (20) is fixedly connected to a positioning plate (21), the surface of the slider (20) is fixedly connected to a telescopic rod (24), the end of the telescopic rod (24) away from the slider (20) is fixedly connected to a center frame (23), the end of the center frame (23) is fixedly connected to a support rod (30), the end of the support rod (30) away from the center frame (23) is fixedly connected to a fixed frame (29), the end of the fixed frame (29) is fixedly connected to a motor (33), the surface of the fixed frame (29) is fixedly connected to a stabilizing rod (34), and the stabilizing rod (34) The end away from the fixed frame (29) is fixedly connected to a driving frame (31), the surface of the driving frame (31) and the output end of the motor (33) are fixedly connected to a meshing wheel (32), the inner wall of the slide groove (6) is fixedly connected to a positioning plate (205), the surface of the positioning plate (205) is fixedly connected to an electric push rod (26), the telescopic end of the electric push rod (26) is hinged to a movable plate (28), the end of the movable plate (28) away from the electric push rod (26) is hinged to a slider (20), the surface of the slider (20) is fixedly connected to a spring (22), the surface of the driving frame (31) is meshed with a climbing crawler (25), and the surface of the center frame (23) is fixedly connected to a bent plate (27).

2. A climbable flaw detection device for a wind turbine pedestal according to claim 1, characterized in that: Two positioning grooves (7) are respectively arranged inside the arc frame 1 (1) and the arc frame 2 (2), and the two positioning grooves (7) are symmetrically arranged with the slide groove (6) as the center. The end of the screw rod (5) passes through the arc frame 1 (1) and extends to the inside of the insertion hole (4), and the surface of the screw rod (5) is threadedly connected to the inner wall of the plug plate (3).

3. A climbable flaw detection device for a wind turbine pedestal according to claim 2, characterized in that: The positioning plate (205) is arranged at the inner center of the slide groove (6), the surface of the positioning plate (21) is slidably connected to the inner wall of the positioning groove (7), the telescopic rod (24) is arranged at the end of the slider (20) away from the slide groove (6), the end of the spring (22) away from the slider (20) is fixedly connected to the surface of the bent plate (27), and the end of the support rod (30) away from the center frame (23) extends to the outer end of the arc frame (1).

4. A climbable flaw detection device for a wind turbine pylon according to claim 3, characterized in that: The meshing wheels (32) mesh with each other, the surface of the driving frame (31) meshes with the inner wall of the climbing crawler (25), the inner wall of the climbing crawler (25) contacts the surface of the center frame (23), and the climbing crawler (25) is symmetrically arranged with the center frame (23) as the center.

5. A climbable flaw detection device for a wind turbine pedestal according to claim 4, characterized in that: The extrusion component (9) comprises a tripod (40), the end of the tripod (40) being hinged to the telescopic end of the electric push rod (26), the center of the tripod (40) being hinged to a limit rod (41), the end of the limit rod (41) being fixedly connected to a bracket (42), the end of the bracket (42) being fixedly connected to a pull rod (43), the end of the pull rod (43) away from the bracket (42) being fixedly connected to a rotating rod (44), and the end of the rotating rod (44) being rotatably connected to the top of the bent plate (27).

6. A climbable flaw detection device for a wind turbine pedestal according to claim 5, characterized in that: Two brackets (42) are arranged on the surface of the limiting rod (41), and the two brackets (42) are symmetrically arranged with the limiting rod (41) as the center. The rotating rod (44) is arranged at one end of the climbing crawler (25) close to the arc frame one (1).

7. A climbable flaw detection device for a wind turbine pylon according to claim 6, characterized in that: The detection component (10) comprises an arc groove plate (50), the arc groove plate (50) is fixedly connected to the surface of an arc frame (1), the surface of the arc groove plate (50) is slidably connected to a slide frame (51), the surface of the slide frame (51) is fixedly connected to a support plate (52), the end of the support plate (52) is fixedly connected to an extension rod (53), the end of the extension rod (53) away from the support plate (52) is fixedly connected to a detector (54), the top of the slide frame (51) is fixedly connected to a top plate (55), the bottom of the top plate (55) is fixedly connected to a motor (56), the output end of the motor (56) is fixedly connected to a gear (57), and the surface of the gear (57) is meshed with the inner wall of the arc groove plate (50).

8. A climbable flaw detection device for a wind turbine pedestal according to claim 7, characterized in that: Two extension rods (53) are arranged on the surface of the support plate (52), the two extension rods (53) are symmetrically arranged with the support plate (52) as the center, and the ends of the two extension rods (53) away from the support plate (52) are arranged opposite to each other, and the ends of the extension rods (53) away from the support plate (52) extend to the outer end of the arc frame 1 (1).

9. A flaw detection method for a climbable flaw detection device for a wind turbine pedestal according to claim 8, characterized in that: The following steps are involved: S1: After the inner wall of the arc frame 1 (1) contacts the surface of the cartridge frame, the arc frame 2 (2) is inserted into the inside of the insertion hole (4) through the plug plate (3), and the screw (5) fixes the plug plate (3) inside the insertion hole (4) to connect and fix the arc frame 1 (1) and the arc frame 2 (2), so that the cartridge frame is located inside the arc frame 1 (1) and the arc frame 2 (2); S2: Starting the motor (33) to drive the meshing wheel (32) to rotate inside the climbing crawler (25), and the meshing wheel (32) drives the driving frame (31) to rotate when rotating, and the driving frame (31) can then drive the climbing crawler (25) to rotate, thereby climbing on the surface of the drum frame by utilizing the rotation; S3: When the rotating rod (44) moves, it pushes the center frame (23) to move through the bent plate (27), so that the center frame (23) can push the climbing crawler (25) to squeeze the surface of the drum frame, thereby preventing the climbing crawler (25) from loosening and falling off from the drum frame; S4: When the gear (57) rotates, it uses the meshing with the arc groove plate (50) to push the slide (51) to move, and the slide (51) slides on the surface of the arc groove plate (50), thereby improving the stability of the slide (51) when moving.

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