Wind power rotating shaft flaw detection probe

Abstract

The invention relates to a flaw detection probe for a wind power rotating shaft, which belongs to the technical field of flaw detection and comprises a base, detection equipment arranged on the upper surface of the base and used for detecting the surface defect condition of the wind power rotating shaft, and a rotary clamping mechanism arranged on the top of the base and used for clamping the wind power rotating shaft and driving the wind power rotating shaft to rotate, a marking assembly used for marking the defect position of the wind power rotating shaft is arranged outside the detection equipment, and a recording assembly used for recording the flaw detection position is arranged on the upper surface of the base. Through coordinated cooperation of movement of the detection equipment and rotation of the wind power rotating shaft, the marking assembly and the recording assembly automatically trigger marking and recording actions at the same time, manual intervention is not needed, the influence of human factors on the detection result is reduced, the automation level and reliability of detection are improved, and the detection efficiency is improved. The defect position of the wind power rotating shaft can be automatically responded, the detection and marking efficiency is improved, and errors possibly caused by manual intervention are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of flaw detection, and in particular to a wind turbine shaft flaw detection probe. Background Art

[0002] The fan main shaft is a critical component connecting the fan blades to the fan base. Hollow and made of stainless steel, the internal bore is difficult to machine. Deep-hole drilling and boring machines are typically used for this purpose. Due to the characteristics of the fan main shaft, these machines require a higher headstock. The wind turbine main shaft experiences both radial and axial offset. This axial offset is directly transmitted to the gearbox input shaft. Unless special measures are taken to control the radial and axial clearances of the spherical roller bearings and to position the planetary gears, this axial offset can adversely affect the planetary carrier support bearings in the gearbox.

[0003] The Chinese utility model patent with announcement number CN222800698U discloses a wind turbine shaft flaw detection probe, including a support base, with clamping plates provided on both sides of the upper end of the support base, the main shaft is clamped between the clamping plates on both sides, and a clamping mechanism is installed on the support base. The clamping mechanism drives the clamping plates on both sides to move inward at the same time to clamp the main shaft. The upper end of the support base is provided with a first ring body that can slide, and the outer wall of the first ring body near the upper end is plugged with a plug-in block, and the upper end of the plug-in block is detachably connected to the detection probe.

[0004] The above patent has the following shortcomings: after the wind turbine shaft flaw detection probe finds a defect, the defect location needs to be manually marked. This method is inefficient and prone to human errors, resulting in problems such as missing or wrong labels. On the other hand, the record of the defect location is not detailed and accurate enough, which makes it difficult to meet the needs of comprehensive evaluation and subsequent analysis of the wind turbine shaft quality, and cannot provide an effective basis for improving the production process.

[0005] Therefore, there is an urgent need to improve the wind turbine shaft flaw detection probe to solve the above problems. Summary of the Invention

[0006] In response to the shortcomings of the existing technology, the present invention provides a wind turbine shaft flaw detection probe with high detection efficiency and accurate marking. Through the coordinated cooperation of the movement of the detection equipment and the rotation of the wind turbine shaft, the marking component and the recording component automatically trigger the marking and recording actions without human intervention, reducing the impact of human factors on the detection results, improving the automation level and reliability of the detection, and being able to automatically respond to the defect location of the wind turbine shaft, thereby improving the efficiency of detection and marking and reducing the errors that may be caused by human intervention.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a wind turbine shaft flaw detection probe, comprising a base, a detection device disposed on the upper surface of the base for detecting surface defects of the wind turbine shaft, and a rotary clamping mechanism disposed on the top of the base for clamping the wind turbine shaft and driving it to rotate, wherein the detection device is externally provided with a marking component for marking the defect location of the wind turbine shaft, and the upper surface of the base is provided with a recording component for recording the detection location;

[0008] The marking assembly includes a mounting cylinder detachably connected to the outside of the detection device, a storage tank fixedly connected to the top of the mounting cylinder, an abutment rod slidably connected to the inside of the mounting cylinder and extending to the outside thereof, an abutment ball rotatably connected to the right end of the abutment rod, an abutment spring circumferentially connected to the outside of the abutment rod, a connecting ring fixedly connected to the outside of the abutment rod, a transmission rod fixedly connected to the outside of the connecting ring, and a piston assembly disposed inside the mounting cylinder for automatically triggering the ejection of ceramic ink;

[0009] The recording assembly includes a support rod fixedly connected to the bottom of the transmission rod, a cylinder fixedly connected to the bottom end of the support rod, a shaft rod fixedly connected to the inner top wall of the cylinder, a connecting disk fixedly connected to the bottom of the shaft rod, a steel ball rotatably mounted inside the cylinder and extending to its outside, a return spring arranged at the bottom of the connecting disk, and a recording plate fixedly connected to the top of the base.

[0010] Preferably, a delivery pipe is fixedly connected between the storage tank and the installation cylinder, the abutment spring is fixedly connected between the installation cylinder and the connecting ring, and the abutment ball abuts against the outer wall of the wind turbine shaft.

[0011] Preferably, the piston assembly includes a piston cylinder fixedly connected to the inside of the mounting cylinder, a piston plate slidably connected to the inside of the piston cylinder, a plug rod fixedly connected to the axis of the piston plate and extending to the outside of the piston cylinder, an abutment plate fixedly connected to the left end of the plug rod, a compression spring fixedly connected between the abutment plate and the piston cylinder, and a pressure block fixedly connected to the end of the transmission rod away from the connecting ring.

[0012] Preferably, the compression spring is connected to the outside of the plug rod, the top of the piston cylinder is fixedly connected to a nozzle extending to the upper surface of the mounting cylinder, and the end of the nozzle away from the piston cylinder is fixedly connected to a nozzle, and is located above the abutment ball.

[0013] Preferably, the pressure block abuts against the outside of the abutment plate, and a transmission port adapted to the pressure block is provided inside the mounting tube. The pressure block is slidably connected to the inside of the transmission port, and the pressure block is swingably connected to the inside of the mounting tube through the abutment ball and extends to its outside.

[0014] Preferably, the cylinder is a hollow cylinder, a marking liquid is provided inside the cylinder, the reset spring is fixedly connected to the bottom of the connecting plate, the bottom of the reset spring is fixedly connected to a limiting ring, the limiting ring is in contact with the upper surface of the steel ball, and the steel ball is rollingly connected to the top of the recording plate through the transmission rod.

[0015] Preferably, the detection equipment includes a drive motor fixedly mounted on the outside of the base, a threaded rod fixedly connected to the output shaft of the drive motor, a threaded block threadedly connected to the outside of the threaded rod, a support rod fixedly connected to the top of the threaded block, a first ring body fixedly connected to the top of the support rod, two second ring bodies rotatably connected to the inside of the first ring body, and a detection probe body detachably mounted on the top of the first ring body and extending to its lower surface. The mounting tube is detachably connected to the outside of the first ring body through a fixing bracket and is located outside the wind turbine shaft.

[0016] Preferably, the detection end of the detection probe body is located between the second ring bodies on both sides close to the outer wall of the wind turbine shaft, the inner walls of the two second ring bodies are rotatably connected with a plurality of balls, and are rollingly connected to the outer wall of the wind turbine shaft, the threaded rod is rotatably connected to the interior of the base and extends to its outside, the bottom of the threaded block is fixedly connected to a slider extending to the interior of the base, and a slide groove adapted to the slider is provided inside the base, and the slider and the slide groove are slidably connected.

[0017] Preferably, the rotating clamping mechanism includes a double-axis cylinder fixedly mounted on the outside of the base, a connecting frame fixedly connected to the two output ends of the double-axis cylinder, two fixed plates fixedly connected to the outside of the connecting frame, a mounting seat fixedly connected between the two fixed plates, a rotating sleeve rotatably connected to the inside of the mounting seat, a clamping plate fixedly connected to one end of the rotating sleeve, a limiting seat fixedly connected to the outside of the left connecting frame, a spline shaft slidably connected to the inside of the rotating sleeve and extending to the outside thereof, and a synchronous structure arranged on the outside of the spline shaft, the rotating sleeve is rotatably connected to the inside of the limiting seat, the outside of the left connecting frame is fixedly connected to a storage sleeve, the outside of the right connecting frame is fixedly connected to an adjusting rod, the adjusting rod is slidably connected to the inside of the storage sleeve, and sliding holes compatible with the storage sleeve and the adjusting rod are respectively provided on the left and right sides of the inside of the base.

[0018] Preferably, the synchronization structure includes a driven wheel fixedly connected to the right end of the spline shaft, a transmission wheel fixedly connected to the right end of the threaded rod, and a belt transmission-connected to the outside of the transmission wheel and the driven wheel.

[0019] Compared with the prior art, the present invention provides a wind turbine shaft flaw detection probe with the following features:

[0020] Beneficial effects:

[0021] 1. The wind turbine shaft flaw detection probe coordinates the movement of the detection equipment and the rotation of the wind turbine shaft, and simultaneously realizes the automatic triggering of marking and recording actions by the marking component and the recording component without human intervention, thereby reducing the impact of human factors on the detection results, improving the automation level and reliability of detection, and being able to automatically respond to the defect location of the wind turbine shaft, thereby improving the efficiency of detection and marking and reducing the errors that may be caused by human intervention.

[0022] 2. The reciprocating movement of the threaded rod drives the detection probe body to perform reciprocating scanning and detection on the surface of the wind turbine shaft. When a defect is detected, the automatic triggering mechanism of the piston assembly can automatically spray ceramic ink for marking when the defect is detected, without the need for human intervention, thereby improving the detection efficiency and marking accuracy. The design of the abutment spring and the compression spring can ensure stable contact between the abutment ball and the outer wall of the wind turbine shaft, while accurately controlling the spraying amount and spraying position of the ceramic ink.

[0023] 3. The wind turbine shaft flaw detection probe is linked to the marking component by a transmission rod through a recording component. When the transmission rod moves, it drives the support rod to move, and then drives the cylinder to move, so that the steel ball rolls on the recording plate, and can record the defect position marked by the marking component in real time and synchronously, ensuring the consistency of the marking position and the recording position, facilitating the subsequent analysis and processing of the wind turbine shaft flaw detection results, and realizing the automatic operation of defect marking and position recording. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural stereogram of a wind turbine shaft flaw detection probe according to the present invention;

[0025] Figure 2 This is a structural stereogram of a detection device and a rotating clamping mechanism of a wind turbine shaft flaw detection probe according to the present invention;

[0026] Figure 3 This is a structural stereogram of a marking assembly of a wind turbine shaft flaw detection probe according to the present invention;

[0027] Figure 4 This is a structural sectional perspective view of a marking assembly of a wind turbine shaft flaw detection probe according to the present invention;

[0028] Figure 5 The present invention is a wind turbine shaft flaw detection probe Figure 4 An enlarged schematic diagram of the structure of A is shown;

[0029] Figure 6 This is a sectional perspective view of the connection structure between the storage tank and the piston cylinder of a wind turbine shaft flaw detection probe of the present invention;

[0030] Figure 7 This is a structural sectional perspective view of a recording component of a wind turbine shaft flaw detection probe according to the present invention;

[0031] Figure 8 This is a structural stereogram of a rotary clamping mechanism of a wind turbine shaft flaw detection probe according to the present invention.

[0032] In the figure: 1. Base; 2. Detection device; 21. Drive motor; 22. Threaded rod; 23. Threaded block; 24. Support rod; 25. First ring; 26. Second ring; 27. Detection probe body; 28. Ball; 3. Rotary clamping mechanism; 31. Dual-axis cylinder; 32. Connecting frame; 33. Fixing plate; 34. Mounting seat; 35. Rotating sleeve; 36. Clamping plate; 37. Limit seat; 38. Spline shaft; 39. Driven pulley; 310. Transmission pulley; 311. Belt; 312. Storage sleeve; 313 , adjusting rod; 4, marking assembly; 41, mounting cylinder; 42, storage tank; 43, abutment rod; 44, abutment ball; 45, connecting ring; 46, pressure block; 47, abutment spring; 48, piston cylinder; 49, piston plate; 410, plug rod; 411, abutment plate; 412, compression spring; 413, delivery pipe; 414, nozzle; 415, transmission rod; 5, recording assembly; 51, support rod; 52, cylinder; 53, shaft; 54, connecting disk; 55, reset spring; 56, steel ball; 57, recording plate. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0034] See also Figures 1 to 8 In this embodiment, a wind turbine shaft flaw detection probe includes a base 1, a detection device 2 disposed on the upper surface of the base 1 for detecting surface defects of the wind turbine shaft, and a rotating clamping mechanism 3 disposed on the top of the base 1 for clamping the wind turbine shaft and driving it to rotate. A marking component 4 for marking the defect location of the wind turbine shaft is disposed on the outside of the detection device 2, and a recording component 5 for recording the detection location is disposed on the upper surface of the base 1.

[0035] Among them, the marking component 4 includes a mounting cylinder 41 that is detachably connected to the outside of the detection device 2, a storage tank 42 fixedly connected to the top of the mounting cylinder 41, an abutment rod 43 slidably connected to the inside of the mounting cylinder 41 and extending to the outside thereof, an abutment ball 44 rotatably connected to the right end of the abutment rod 43, an abutment spring 47 surroundingly connected to the outside of the abutment rod 43, a connecting ring 45 fixedly connected to the outside of the abutment rod 43, a transmission rod 415 fixedly connected to the outside of the connecting ring 45, and a piston assembly arranged inside the mounting cylinder 41 for automatically triggering the spraying of ceramic ink.

[0036] Specifically, a delivery pipe 413 is fixedly connected between the storage tank 42 and the installation cylinder 41 , the abutment spring 47 is fixedly connected between the installation cylinder 41 and the connection ring 45 , and the abutment ball 44 abuts against the outer wall of the wind turbine shaft.

[0037] It should be noted that the piston assembly includes a piston cylinder 48 fixedly connected to the inside of the mounting cylinder 41, a piston plate 49 slidably connected to the inside of the piston cylinder 48, a plug rod 410 fixedly connected to the axis of the piston plate 49 and extending to the outside of the piston cylinder 48, an abutment plate 411 fixedly connected to the left end of the plug rod 410, a compression spring 412 fixedly connected between the abutment plate 411 and the piston cylinder 48, and a pressure block 46 fixedly connected to the end of the transmission rod 415 away from the connecting ring 45.

[0038] It is worth mentioning that the compression spring 412 is connected to the outside of the plug rod 410. The top of the piston cylinder 48 is fixedly connected to a nozzle 414 that extends to the upper surface of the mounting cylinder 41. The end of the nozzle 414 away from the piston cylinder 48 is fixedly connected to a nozzle and is located above the abutment ball 44. The pressure block 46 abuts the outside of the abutment plate 411. The interior of the mounting cylinder 41 has a transmission port adapted for the pressure block 46. The pressure block 46 is slidably connected to the interior of the transmission port. The pressure block 46 is swingably connected to the interior of the mounting cylinder 41 through the abutment ball 44 and extends to the outside.

[0039] During use, when the detection probe body 27 detects a surface defect on the wind turbine shaft, the shaft rotates, causing the abutment ball 44 to abut against the outer wall of the shaft. When the defect is encountered, the shaft surface is uneven, causing the abutment ball 44 to be squeezed, driving the abutment rod 43 to slide toward the interior of the mounting tube 41. The sliding of the abutment rod 43 moves the connecting ring 45, compressing the abutment spring 47. Simultaneously, the connecting ring 45 moves the transmission rod 415. The transmission rod 415 moves the pressure block 46, which compresses the abutment plate 411, causing the plug rod 410 to slide the piston plate 49 within the piston tube 48, compressing the compression spring 412. Under pressure, the ceramic ink within the piston tube 48 is ejected from the nozzle through the nozzle 414, marking the defect location on the wind turbine shaft. This achieves real-time linkage between detection and marking, improving detection efficiency and meeting the practical needs of wind turbine shaft flaw detection.

[0040] See also Figure 1 、 Figure 3 、 Figure 4 and Figure 7 In this embodiment, the recording assembly 5 includes a support rod 51 fixedly connected to the bottom of the transmission rod 415, a cylinder 52 fixedly connected to the bottom end of the support rod 51, a shaft 53 fixedly connected to the inner top wall of the cylinder 52, a connecting disk 54 fixedly connected to the bottom of the shaft 53, a steel ball 56 rotatably mounted inside the cylinder 52 and extending to the outside thereof, a return spring 55 arranged at the bottom of the connecting disk 54, and a recording plate 57 fixedly connected to the top of the base 1.

[0041] Among them, the cylinder 52 is a hollow cylinder, and a marking liquid is set inside the cylinder 52. The reset spring 55 is fixedly connected to the bottom of the connecting plate 54. The bottom of the reset spring 55 is fixedly connected to the limit ring. The limit ring is in contact with the upper surface of the steel ball 56. The steel ball 56 is rollingly connected to the top of the recording plate 57 through the transmission rod 415.

[0042] When this embodiment is in use, when the transmission rod 415 moves, it drives the support rod 51 and the cylinder 52 to move, and the steel ball 56 rolls on the top of the recording plate 57. At the same time, the marking liquid in the cylinder 52 leaves a mark during the rolling process of the steel ball 56, recording the defect position. After the detection is completed, the reset spring 55 resets the steel ball 56. The defect position is recorded by leaving a mark on the recording plate 57 by the steel ball 56. The record is intuitive and accurate, which is convenient for subsequent analysis and processing. By utilizing a mechanical structure to achieve automatic recording, the error of manual recording is avoided and the recording position is accurate. The recording component 5 can record the defect location information in detail, providing comprehensive data support for the quality assessment, fault analysis and production process improvement of the wind turbine shaft.

[0043] See also Figures 1 to 2 In this embodiment, the detection device 2 includes a driving motor 21 fixedly mounted on the outside of the base 1, a threaded rod 22 fixedly connected to the output shaft of the driving motor 21, a threaded block 23 threadedly connected to the outside of the threaded rod 22, a support rod 24 fixedly connected to the top of the threaded block 23, a first ring body 25 fixedly connected to the top of the support rod 24, two second ring bodies 26 rotatably connected to the inside of the first ring body 25, and a detection probe body 27 detachably mounted on the top of the first ring body 25 and extending to its lower surface. The mounting tube 41 is detachably connected to the outside of the first ring body 25 through a fixing bracket and is located outside the wind turbine shaft.

[0044] Among them, the detection end of the detection probe body 27 is located between the second ring bodies 26 on both sides close to the outer wall of the wind turbine shaft. The inner walls of the two second ring bodies 26 are rotatably connected with a plurality of balls 28, and are rollingly connected to the outer wall of the wind turbine shaft. The threaded rod 22 is rotatably connected to the interior of the base 1 and extends to its outside. The bottom of the threaded block 23 is fixedly connected to a slider extending to the interior of the base 1. A slide groove adapted to the slider is opened inside the base 1, and the slider and the slide groove are slidably connected.

[0045] During use, this embodiment activates the drive motor 21 through a controller, driving the threaded rod 22 to rotate. Because the bottom of the threaded block 23 has a slider that slides into a groove within the base 1, the threaded block 23 moves linearly on the threaded rod 22, thereby driving the first ring 25 and the detection probe body 27 through the support rod 24 to detect different positions of the wind turbine shaft. Ball bearings 28 on the inner walls of the two second rings 26 are in rolling contact with the outer wall of the wind turbine shaft, assisting in the movement of the detection probe body 27.

[0046] See also Figure 1 、 Figure 2 and Figure 8 In this embodiment, the rotating clamping mechanism 3 includes a dual-axis cylinder 31 fixedly mounted on the outside of the base 1, a connecting frame 32 fixedly connected to the two output ends of the dual-axis cylinder 31, two fixed plates 33 fixedly connected to the outside of the connecting frame 32, a mounting seat 34 fixedly connected between the two fixed plates 33, a rotating sleeve 35 rotatably connected to the inside of the mounting seat 34, a clamping plate 36 fixedly connected to one end of the rotating sleeve 35, a limiting seat 37 fixedly connected to the outside of the left connecting frame 32, a spline shaft 38 slidably connected to the inside of the rotating sleeve 35 and extending to the outside thereof, and a synchronous structure arranged on the outside of the spline shaft 38, the rotating sleeve 35 is rotatably connected to the inside of the limiting seat 37, the outside of the left connecting frame 32 is fixedly connected to a storage sleeve 312, the outside of the right connecting frame 32 is fixedly connected to an adjusting rod 313, the adjusting rod 313 is slidably connected to the inside of the storage sleeve 312, and the left and right sides of the inside of the base 1 are respectively provided with sliding holes adapted to the storage sleeve 312 and the adjusting rod 313.

[0047] The synchronization structure includes a driven wheel 39 fixedly connected to the right end of the spline shaft 38 , a transmission wheel 310 fixedly connected to the right end of the threaded rod 22 , and a belt 311 transmission-connected to the outside of the transmission wheel 310 and the driven wheel 39 .

[0048] During use, this embodiment activates the controller to activate the extension and retraction of the output end of the dual-axis cylinder 31, driving the two connecting frames 32 to move toward or away from each other. The fixed plate 33, mounting base 34, and rotating sleeve 35 drive the clamping plate 36 to clamp or release the wind turbine shaft. When the threaded rod 22 of the detection device 2 rotates, the drive pulley 310, belt 311, and driven pulley 39 drive the spline shaft 38, which in turn drives the rotating sleeve 35 and clamping plate 36, achieving rotation of the wind turbine shaft. This synchronization mechanism achieves the linkage between the movement of the detection device 2 and the rotation of the wind turbine shaft, improving detection efficiency.

[0049] The working principle of the above embodiment is:

[0050] During use, the controller activates the output end of the dual-axis cylinder 31 to telescopically drive the connecting frames 32 on both sides to drive the fixed plate 33, the mounting seat 34, etc. to move, and the clamping plates 36 on both sides approach and clamp the wind turbine shaft, and the adjusting rod 313 slides in the storage sleeve 312. The threaded rod 22 is driven to rotate by the driving motor 21, and the threaded block 23 slides in the slide groove of the base 1 through the bottom slider, driving the support rod 24, the first ring body 25 and the detection probe body 27 to move, so that the detection end of the detection probe body 27 is close to the outer wall of the wind turbine shaft, and the ball 28 in the second ring body 26 is in rolling contact with the outer wall of the wind turbine shaft. When the threaded rod 22 rotates, the transmission wheel 310, the belt 311 and the driven wheel 39 drive the spline shaft 38 to rotate, and then the rotating sleeve 35 and the clamping plate 36 drive the wind turbine shaft to rotate, and the detection probe body 27 detects the surface of the wind turbine shaft;

[0051] When the abutment ball 44 encounters a defective position of the wind turbine shaft and is squeezed, it drives the abutment rod 43, the connecting ring 45, and the transmission rod 415 to move. The pressure block 46 squeezes the abutment plate 411, pushing the plug rod 410 and the piston plate 49 to slide in the piston cylinder 48, and the ceramic ink in the storage tank 42 is ejected from the nozzle through the delivery pipe 413, the piston cylinder 48, and the nozzle 414 to mark the defective position.

[0052] The movement of the transmission rod 415 drives the support rod 51 and the cylinder 52 to move. The steel ball 56 in the cylinder 52 rolls on the top of the recording plate 57. Since there is a marking liquid in the cylinder 52, the steel ball 56 leaves a mark on the recording plate 57 to record the flaw detection position. The detection, marking and recording processes are all achieved through mechanical linkage and automatic control, reducing manual intervention and improving detection efficiency and accuracy.

[0053] The installation method, connection method or setting method disclosed in this embodiment are all common mechanical connection methods, and can be implemented as long as they can achieve their beneficial effects. In addition, the electrical components appearing in this embodiment are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device such as a computer that plays a control role. Technicians in this field can control the electrical components through simple programming, and the existing disclosed power connection technology is also common knowledge in this field, so the specific structural composition and working principle will not be described in detail in this embodiment.

Claims

1. A wind turbine shaft flaw detection probe, characterized by: The invention comprises a base (1), a detection device (2) arranged on the upper surface of the base (1) for detecting surface defects of a wind turbine shaft, and a rotating clamping mechanism (3) arranged on the top of the base (1) for clamping the wind turbine shaft and driving it to rotate. The detection device (2) is provided with a marking component (4) for marking defect positions on the wind turbine shaft on the outside, and the upper surface of the base (1) is provided with a recording component (5) for recording detection positions. The marking assembly (4) comprises a mounting cylinder (41) detachably connected to the outside of the detection device (2), a storage tank (42) fixedly connected to the top of the mounting cylinder (41), an abutting rod (43) slidably connected to the inside of the mounting cylinder (41) and extending to the outside thereof, an abutting ball (44) rotatably connected to the right end of the abutting rod (43), an abutting spring (47) connected around the outside of the abutting rod (43), a connecting ring (45) fixedly connected to the outside of the abutting rod (43), a transmission rod (415) fixedly connected to the outside of the connecting ring (45), and a piston assembly arranged inside the mounting cylinder (41) for automatically triggering the ejection of ceramic ink; The recording assembly (5) comprises a support rod (51) fixedly connected to the bottom of the transmission rod (415), a cylinder (52) fixedly connected to the bottom end of the support rod (51), a shaft rod (53) fixedly connected to the inner top wall of the cylinder (52), a connecting disk (54) fixedly connected to the bottom of the shaft rod (53), a steel ball (56) rotatably mounted inside the cylinder (52) and extending to the outside thereof, a return spring (55) arranged at the bottom of the connecting disk (54), and a recording plate (57) fixedly connected to the top of the base (1).

2. The wind turbine shaft flaw detection probe according to claim 1, characterized in that: A delivery pipe (413) is fixedly connected between the storage tank (42) and the installation cylinder (41), the abutment spring (47) is fixedly connected between the installation cylinder (41) and the connection ring (45), and the abutment ball (44) abuts against the outer wall of the wind turbine shaft.

3. The wind turbine shaft flaw detection probe according to claim 1, characterized in that: The piston assembly comprises a piston cylinder (48) fixedly connected to the interior of the mounting cylinder (41), a piston plate (49) slidably connected to the interior of the piston cylinder (48), a plug rod (410) fixedly connected to the axis of the piston plate (49) and extending to the exterior of the piston cylinder (48), an abutment plate (411) fixedly connected to the left end of the plug rod (410), a compression spring (412) fixedly connected between the abutment plate (411) and the piston cylinder (48), and a pressure block (46) fixedly connected to the end of the transmission rod (415) away from the connecting ring (45).

4. The wind turbine shaft flaw detection probe according to claim 3, characterized in that: The compression spring (412) is connected to the outside of the plug rod (410) in a surrounding manner. The top of the piston cylinder (48) is fixedly connected to a nozzle (414) extending to the upper surface of the mounting cylinder (41). The end of the nozzle (414) away from the piston cylinder (48) is fixedly connected to a nozzle and is located above the abutting ball (44).

5. The wind turbine shaft flaw detection probe according to claim 3, characterized in that: The pressing block (46) abuts against the outside of the abutting plate (411); a transmission opening adapted to the pressing block (46) is provided inside the mounting tube (41); the pressing block (46) is slidably connected to the inside of the transmission opening; the pressing block (46) is swingably connected to the inside of the mounting tube (41) through the abutting ball (44) and extends to the outside thereof.

6. The wind turbine shaft flaw detection probe according to claim 1, characterized in that: The cylinder (52) is a hollow cylinder. A marking liquid is provided inside the cylinder (52). The reset spring (55) is fixedly connected to the bottom of the connecting plate (54). The bottom of the reset spring (55) is fixedly connected to a limiting ring. The limiting ring abuts against the upper surface of the steel ball (56). The steel ball (56) is rollingly connected to the top of the recording plate (57) through the transmission rod (415).

7. The wind turbine shaft flaw detection probe according to claim 1, characterized in that: The detection device (2) comprises a driving motor (21) fixedly mounted on the outside of the base (1), a threaded rod (22) fixedly connected to the output shaft of the driving motor (21), a threaded block (23) threadedly connected to the outside of the threaded rod (22), a support rod (24) fixedly connected to the top of the threaded block (23), a first ring body (25) fixedly connected to the top of the support rod (24), two second ring bodies (26) rotatably connected to the inside of the first ring body (25), and a detection probe body (27) detachably mounted on the top of the first ring body (25) and extending to the lower surface thereof, wherein the mounting tube (41) is detachably connected to the outside of the first ring body (25) via a fixing frame and is located outside the wind turbine shaft.

8. The wind turbine shaft flaw detection probe according to claim 7, characterized in that: The detection end of the detection probe body (27) is located between the second ring bodies (26) on both sides and close to the outer wall of the wind turbine shaft. The inner walls of the two second ring bodies (26) are rotatably connected with a plurality of balls (28) and are rollingly connected to the outer wall of the wind turbine shaft. The threaded rod (22) is rotatably connected to the interior of the base (1) and extends to the outside thereof. The bottom of the threaded block (23) is fixedly connected to a slider extending to the interior of the base (1). A sliding groove adapted to the slider is provided inside the base (1), and the slider and the sliding groove are slidably connected.

9. The wind turbine shaft flaw detection probe according to claim 1, characterized in that: The rotary clamping mechanism (3) comprises a double-axis cylinder (31) fixedly mounted on the outside of the base (1), a connecting frame (32) fixedly connected to the two output ends of the double-axis cylinder (31), two fixed plates (33) fixedly connected to the outside of the connecting frame (32), a mounting seat (34) fixedly connected between the two fixed plates (33), a rotating sleeve (35) rotatably connected to the inside of the mounting seat (34), a clamping plate (36) fixedly connected to one end of the rotating sleeve (35), a limiting seat (37) fixedly connected to the outside of the left connecting frame (32), and a sliding connection. A spline shaft (38) is provided inside the rotating sleeve (35) and extends to the outside thereof, and a synchronous structure is provided outside the spline shaft (38); the rotating sleeve (35) is rotatably connected to the inside of the limit seat (37); the outside of the left connecting frame (32) is fixedly connected to a storage sleeve (312); the outside of the right connecting frame (32) is fixedly connected to an adjustment rod (313); the adjustment rod (313) is slidably connected to the inside of the storage sleeve (312); and sliding holes adapted to the storage sleeve (312) and the adjustment rod (313) are respectively provided on the left and right sides of the inside of the base (1).

10. The wind turbine shaft flaw detection probe according to claim 9, characterized in that: The synchronization structure comprises a driven wheel (39) fixedly connected to the right end of the spline shaft (38), a transmission wheel (310) fixedly connected to the right end of the threaded rod (22), and a belt (311) transmission-connected to the outside of the transmission wheel (310) and the driven wheel (39).

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