A fault diagnosis device for a wind power generator

Abstract

This invention discloses a fault diagnosis device for wind turbines, proposing the following scheme: It includes a first clamp, a second clamp rotatably connected to the first clamp, and both clamps share a fixing mechanism. Both clamps also share a detection mechanism, which in turn includes a diagnostic mechanism. By setting up the detection and diagnostic mechanisms, in use, manually holding and rotating the handle drives the mounting frame, which in turn rotates the rotating frame within the slide groove. As the mounting frame rotates, it drives the moving block on it to rotate as well, which in turn drives the probe body to rotate. The ultrasonic flaw detector body also rotates with the mounting frame until the probe body is adjusted to the area to be detected. Thus, through the probe body, in conjunction with the ultrasonic flaw detector body and connecting wires, it is convenient to detect any area on the transverse plane of the main shaft, making operation more convenient.

Description

Technical Field

[0001] This invention relates to the field of wind turbine testing technology, and in particular to a fault diagnosis device for wind turbines. Background Technology

[0002] A wind turbine is an electrical device that converts wind energy into mechanical work, which drives a rotor to rotate and ultimately outputs alternating current. A wind turbine typically consists of a rotor, main shaft, generator, directional control unit, tower, speed limiting safety mechanism, and energy storage device. The main shaft of the wind turbine, as the component that supports the blades, is a crucial factor in ensuring the normal and stable operation of the unit. Existing patent CN221280980U discloses an auxiliary device for ultrasonic flaw detection of the main shaft of a wind turbine.

[0003] However, while the ultrasonic flaw detection auxiliary device for wind turbine main shafts described in the aforementioned patent can inspect the main shaft at different positions and heights in actual operation, damage can occur anywhere on the main shaft in complex external environments. Furthermore, the main shaft surface is arc-shaped, making it difficult to inspect any area of ​​the main shaft surface in a single use, thus making the operation cumbersome. In addition, the detection probe is prone to wear over long-term use. In actual use, when the wear of the probe wedge exceeds 0.2mm, it needs to be replaced promptly. Therefore, protecting the detection probe during operation is also an important issue. To address these problems, this invention proposes a fault diagnosis device for wind turbines. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and to propose a fault diagnosis device for wind turbines that can conveniently perform flaw detection on any part of the main shaft during use and conveniently protect the measuring probe in a timely manner when not in use.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A fault diagnosis device for a wind turbine includes a first clamp, a second clamp rotatably connected to the first clamp, and a fixing mechanism shared by the first clamp and the second clamp. A detection mechanism shared by the first clamp and the second clamp is provided, a diagnostic mechanism is provided on the detection mechanism, an adjustment mechanism is provided inside the detection mechanism, and a protective mechanism is provided on the detection mechanism. Ball bearings are provided inside the first clamp and the second clamp.

[0007] The detection mechanism includes a sliding groove. A sliding groove is provided at both ends of the first clamp and the second clamp. A mounting frame is provided on one side of the first clamp and the second clamp. Two rotating frames are fixedly connected to the mounting frame. The two rotating frames are rotatably connected to the first clamp and the second clamp through the sliding groove. A moving block is slidably connected to the mounting frame. A probe body is fixedly connected to the moving block.

[0008] The diagnostic apparatus includes an ultrasonic flaw detector body, and the ultrasonic flaw detector body is mounted on the mounting frame.

[0009] The adjustment mechanism includes a motor, which is installed inside the mounting frame. A lead screw is connected to the transmission end of the motor. The lead screw is rotatably connected inside the mounting frame and threadedly connected inside the moving block.

[0010] Preferably, the rotating frame is J-shaped, the ends of the rotating frame are arc-shaped, and the two rotating frames are arranged opposite to each other.

[0011] Preferably, a handle is fixedly connected to the mounting frame, and the handle is provided with a protective sleeve.

[0012] Preferably, two mounting blocks are fixedly connected to the mounting frame, and the ultrasonic flaw detector body is mounted on both mounting blocks. The ultrasonic flaw detector body is provided with a connecting wire, which is connected to the probe body.

[0013] Preferably, the ball bearings are provided in multiple groups within the first and second clamping rings, with each group containing multiple ball bearings, and the multiple ball bearings in each group are arranged in a ring array.

[0014] Preferably, the fixing mechanism includes docking blocks, and two docking blocks are fixedly connected to the first clamp and the second clamp respectively, and the docking blocks on the first clamp and the second clamp abut against each other.

[0015] Preferably, the two mating blocks are fixedly connected by bolts, and the bolts are threaded with nuts.

[0016] Preferably, the protective mechanism includes a protective frame, a protective frame is fixedly connected to the placement frame, a connecting shaft is rotatably connected inside the protective frame, a collecting roller is fixedly connected to the connecting shaft, a covering cloth is wound on the collecting roller, an insert block is slidably connected to the protective frame, one end of the covering cloth is fixedly connected to the connecting shaft, and the other end is fixedly connected to the insert block.

[0017] Preferably, a push block is fixedly connected to the insert block, and a slot is provided at the bottom of the inner cavity of the protective frame, with a damping pad provided in the slot.

[0018] Preferably, each end of the connecting shaft is provided with a spring, one end of the spring being fixedly connected to the connecting shaft and the other end being fixedly connected to the inside of the protective frame.

[0019] Compared with the prior art, the present invention provides a fault diagnosis device for wind turbines, which has the following advantages:

[0020] 1. This fault diagnosis device for wind turbines comprises a slide, a rotating frame, a mounting frame, a handle, a protective sleeve, a moving block, a probe body, an ultrasonic flaw detector body, and connecting wires. In use, the protective sleeve on the handle is manually gripped and rotated, driving the mounting frame, which in turn rotates the two rotating frames inside the slide. As the mounting frame rotates, it drives the moving block to rotate as well, which in turn drives the probe body to rotate. Simultaneously, the ultrasonic flaw detector body rotates along with the mounting frame until the probe body is positioned to the desired detection area. Thus, the probe body, in conjunction with the ultrasonic flaw detector body and connecting wires, allows for convenient detection of any area on the transverse plane of the main shaft, making operation more convenient.

[0021] 2. This fault diagnosis device for wind turbines, by setting up a motor and a lead screw, can connect the motor to the power supply as needed. The motor rotation drives the lead screw to rotate, and as the lead screw rotates, it drives the moving block to move back and forth inside the mounting frame, thereby moving the probe body on the moving block together. This makes it convenient to detect any area on the longitudinal plane of the main shaft, further making the operation more convenient.

[0022] 3. This fault diagnosis device for wind turbines consists of a protective frame, insert block, push block, slot, connecting shaft, storage roller, shielding cloth, spring, and damping pad. After the test is completed, the moving block and the probe body are moved together by a motor until the probe body moves into the inside of the protective frame. Then, the push block is pushed, which drives the insert block to move together. As the insert block moves, the shielding cloth gradually unfolds, slowly covering the probe body. At this time, the storage roller and connecting shaft rotate, and the spring contracts until the insert block is inserted into the damping pad in the slot. The shielding cloth then completely covers the probe body, thus providing protection for the probe body when not in use and reducing wear on the probe body. Attached Figure Description

[0023] Figure 1 This is a perspective view of a fault diagnosis device for wind turbines proposed in this invention.

[0024] Figure 2 This is a view of the connection structure of the first clamping band, the second clamping band, the fixing mechanism, the detection mechanism, and the adjustment mechanism of the present invention.

[0025] Figure 3 This is a view of the first clamping band, the second clamping band, the fixing mechanism, and the ball connection structure of the present invention;

[0026] Figure 4 This is a view of the connection structure between the detection mechanism, the diagnostic mechanism, and the protective frame of the present invention;

[0027] Figure 5 This is a view of the detection mechanism, diagnostic mechanism, and lead screw connection structure of the present invention;

[0028] Figure 6 This is a view of the connection structure between the rotating frame, mounting block, motor, and protective mechanism of the present invention.

[0029] Figure 7 This is a view of the protective mechanism structure of the present invention;

[0030] Figure 8 This is a view of the protective frame, insert block, connecting shaft, storage roller, cover cloth and spring connection structure of the present invention.

[0031] In the diagram: 1. First clamp; 2. Second clamp; 3. Fixing mechanism; 301. Connecting block; 302. Bolt; 303. Nut; 4. Detection mechanism; 401. Slide groove; 402. Rotating frame; 403. Mounting frame; 404. Handle; 405. Protective sleeve; 406. Moving block; 407. Probe body; 5. Diagnostic mechanism; 501. Mounting block; 502. Ultrasonic flaw detector body; 503. Connecting wire; 6. Adjustment mechanism; 601. Motor; 602. Lead screw; 7. Protective mechanism; 701. Protective frame; 702. Insert block; 703. Push block; 704. Slot; 705. Coupling shaft; 706. Receiving roller; 707. Covering cloth; 708. Spring; 709. Damping pad; 8. Ball bearing. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0033] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0034] Example 1:

[0035] Reference Figures 1-6A fault diagnosis device for wind turbines includes a first clamping hoop 1, a second clamping hoop 2 rotatably connected to the first clamping hoop 1, a fixing mechanism 3 jointly provided on the first clamping hoop 1 and the second clamping hoop 2, a detection mechanism 4 jointly provided on the first clamping hoop 1 and the second clamping hoop 2, a diagnostic mechanism 5 provided on the detection mechanism 4, an adjustment mechanism 6 provided inside the detection mechanism 4, a protective mechanism 7 provided on the detection mechanism 4, and ball bearings 8 provided inside the first clamping hoop 1 and the second clamping hoop 2.

[0036] The detection mechanism 4 includes a slide groove 401. A slide groove 401 is provided at both ends of the first clamp 1 and the second clamp 2. A mounting frame 403 is provided on one side of the first clamp 1 and the second clamp 2. Two rotating frames 402 are fixedly connected to the mounting frame 403. The two rotating frames 402 are rotatably connected to the first clamp 1 and the second clamp 2 through the slide groove 401. A moving block 406 is slidably connected to the mounting frame 403. A probe body 407 is fixedly connected to the moving block 406. The rotating frame 402 is J-shaped, and the ends of the rotating frame 402 are arc-shaped. The two rotating frames 402 are arranged opposite to each other. A handle 404 is fixedly connected to the mounting frame 403. A protective sleeve 405 is provided on the handle 404.

[0037] Diagnostic unit 5 includes an ultrasonic flaw detector body 502. The ultrasonic flaw detector body 502 is mounted on a mounting frame 403. Two mounting blocks 501 are fixedly connected to the mounting frame 403, and the ultrasonic flaw detector body 502 is mounted on both mounting blocks 501. A connecting wire 503 is provided on the ultrasonic flaw detector body 502, and the connecting wire 503 is connected to the probe body 407. By setting up the mounting frame 403, during use, the operator can manually hold the protective sleeve 405 on the handle 404 and rotate it, thus driving the mounting frame 403. The two rotating frames 402 rotate inside the slide 401. As the mounting frame 403 rotates, it drives the moving block 406 on it to rotate as well. The rotation of the moving block 406 drives the probe body 407 to rotate as well. The ultrasonic flaw detector body 502 also rotates with the mounting frame 403 until the probe body 407 is adjusted to the area to be detected. Thus, through the probe body 407, in conjunction with the ultrasonic flaw detector body 502 and the connecting wire 503, it is convenient to detect any area on the transverse plane of the main shaft, making the operation more convenient.

[0038] The adjustment mechanism 6 includes a motor 601. The motor 601 is installed inside the mounting frame 403. A lead screw 602 is connected to the transmission end of the motor 601. The lead screw 602 is rotatably connected inside the mounting frame 403 and threadedly connected inside the moving block 406. By setting the motor 601, during the detection process, and further, as needed, the motor 601 can be powered on. The rotation of the motor 601 drives the lead screw 602 to rotate. As the lead screw 602 rotates, it drives the moving block 406 to move back and forth inside the mounting frame 403, thereby driving the probe body 407 on the moving block 406 to move together. This facilitates the detection of any area on the longitudinal plane of the main shaft, making the operation more convenient.

[0039] By configuring a slide 401, a rotating frame 402, a mounting frame 403, a handle 404, a protective sleeve 405, a moving block 406, a probe body 407, an ultrasonic flaw detector body 502, a connecting wire 503, a motor 601, and a lead screw 602, the operator can manually hold the protective sleeve 405 on the handle 404 and rotate it. The handle 404 drives the mounting frame 403, which in turn rotates the two rotating frames 402 inside the slide 401. As the mounting frame 403 rotates, it drives the moving block 406 on it to rotate as well. The rotation of the moving block 406 drives the probe body 407 to rotate as well. The ultrasonic flaw detector body 502 also rotates simultaneously with the mounting frame 403 until the probe body 407 is adjusted to the area to be detected. Thus, by using the probe body 407 in conjunction with the ultrasonic flaw detector body 502 and the connecting wire 503, it is convenient to detect any area on the transverse plane of the main shaft, making the operation more convenient.

[0040] Furthermore, if necessary, the motor 601 can be powered on, and the rotation of the motor 601 will drive the lead screw 602 to rotate. As the lead screw 602 rotates, it will drive the moving block 406 to move back and forth inside the mounting frame 403, thereby driving the probe body 407 on the moving block 406 to move together, thus facilitating the detection of any area on the longitudinal plane of the spindle and making the operation more convenient.

[0041] In this invention, multiple sets of balls 8 are provided in the first clamping ring 1 and the second clamping ring 2. Each set of balls 8 has multiple balls, and the multiple balls 8 in each set are arranged in a ring array. In use, by setting multiple sets of balls 8, after the first clamping ring 1 and the second clamping ring 2 are installed on the spindle, it is convenient to make the first clamping ring 1 and the second clamping ring 2 slide more easily on the spindle when needed.

[0042] In this invention, the fixing mechanism 3 includes a docking block 301. Two docking blocks 301 are fixedly connected to the first clamping hoop 1 and the second clamping hoop 2 respectively, and the docking blocks 301 on the first clamping hoop 1 and the second clamping hoop 2 abut against each other. The two abutting docking blocks 301 are fixedly connected by bolts 302, and the bolts 302 are threaded with nuts 303. Before use, the first clamping hoop 1 and the second clamping hoop 2 can be opened first, and then the first clamping hoop 1 and the second clamping hoop 2 can be clamped on the appropriate part of the main shaft. Then, the corresponding bolts 302 are passed through the two abutting docking blocks 301, and then the bolts 302 are limited and fixed by nuts 303, thereby installing and fixing the first clamping hoop 1 and the second clamping hoop 2.

[0043] Example 2:

[0044] Reference Figures 1-8 A fault diagnosis device for wind turbines includes a first clamping hoop 1, a second clamping hoop 2 rotatably connected to the first clamping hoop 1, a fixing mechanism 3 jointly provided on the first clamping hoop 1 and the second clamping hoop 2, a detection mechanism 4 jointly provided on the first clamping hoop 1 and the second clamping hoop 2, a diagnostic mechanism 5 provided on the detection mechanism 4, an adjustment mechanism 6 provided inside the detection mechanism 4, a protective mechanism 7 provided on the detection mechanism 4, and ball bearings 8 provided inside the first clamping hoop 1 and the second clamping hoop 2.

[0045] The detection mechanism 4 includes a slide groove 401. A slide groove 401 is provided at both ends of the first clamp 1 and the second clamp 2. A mounting frame 403 is provided on one side of the first clamp 1 and the second clamp 2. Two rotating frames 402 are fixedly connected to the mounting frame 403. The two rotating frames 402 are rotatably connected to the first clamp 1 and the second clamp 2 through the slide groove 401. A moving block 406 is slidably connected to the mounting frame 403. A probe body 407 is fixedly connected to the moving block 406. The rotating frame 402 is J-shaped, and the ends of the rotating frame 402 are arc-shaped. The two rotating frames 402 are arranged opposite to each other. A handle 404 is fixedly connected to the mounting frame 403. A protective sleeve 405 is provided on the handle 404.

[0046] Diagnostic unit 5 includes an ultrasonic flaw detector body 502. The ultrasonic flaw detector body 502 is mounted on a mounting frame 403. Two mounting blocks 501 are fixedly connected to the mounting frame 403, and the ultrasonic flaw detector body 502 is mounted on both mounting blocks 501. A connecting wire 503 is provided on the ultrasonic flaw detector body 502, and the connecting wire 503 is connected to the probe body 407. By setting up the mounting frame 403, during use, the operator can manually hold the protective sleeve 405 on the handle 404 and rotate it, thus driving the mounting frame 403. The two rotating frames 402 rotate inside the slide 401. As the mounting frame 403 rotates, it drives the moving block 406 on it to rotate as well. The rotation of the moving block 406 drives the probe body 407 to rotate as well. The ultrasonic flaw detector body 502 also rotates with the mounting frame 403 until the probe body 407 is adjusted to the area to be detected. Thus, through the probe body 407, in conjunction with the ultrasonic flaw detector body 502 and the connecting wire 503, it is convenient to detect any area on the transverse plane of the main shaft, making the operation more convenient.

[0047] The adjustment mechanism 6 includes a motor 601. The motor 601 is installed inside the mounting frame 403. A lead screw 602 is connected to the transmission end of the motor 601. The lead screw 602 is rotatably connected inside the mounting frame 403 and threadedly connected inside the moving block 406. By setting the motor 601, during the detection process, and further, as needed, the motor 601 can be powered on. The rotation of the motor 601 drives the lead screw 602 to rotate. As the lead screw 602 rotates, it drives the moving block 406 to move back and forth inside the mounting frame 403, thereby driving the probe body 407 on the moving block 406 to move together. This facilitates the detection of any area on the longitudinal plane of the main shaft, making the operation more convenient.

[0048] By configuring a slide 401, a rotating frame 402, a mounting frame 403, a handle 404, a protective sleeve 405, a moving block 406, a probe body 407, an ultrasonic flaw detector body 502, a connecting wire 503, a motor 601, and a lead screw 602, the operator can manually hold the protective sleeve 405 on the handle 404 and rotate it. The handle 404 drives the mounting frame 403, which in turn rotates the two rotating frames 402 inside the slide 401. As the mounting frame 403 rotates, it drives the moving block 406 on it to rotate as well. The rotation of the moving block 406 drives the probe body 407 to rotate as well. The ultrasonic flaw detector body 502 also rotates simultaneously with the mounting frame 403 until the probe body 407 is adjusted to the area to be detected. Thus, by using the probe body 407 in conjunction with the ultrasonic flaw detector body 502 and the connecting wire 503, it is convenient to detect any area on the transverse plane of the main shaft, making the operation more convenient.

[0049] Furthermore, if necessary, the motor 601 can be powered on, and the rotation of the motor 601 will drive the lead screw 602 to rotate. As the lead screw 602 rotates, it will drive the moving block 406 to move back and forth inside the mounting frame 403, thereby driving the probe body 407 on the moving block 406 to move together, thus facilitating the detection of any area on the longitudinal plane of the spindle and making the operation more convenient.

[0050] In this invention, multiple sets of balls 8 are provided in the first clamping ring 1 and the second clamping ring 2. Each set of balls 8 has multiple balls, and the multiple balls 8 in each set are arranged in a ring array. In use, by setting multiple sets of balls 8, after the first clamping ring 1 and the second clamping ring 2 are installed on the spindle, it is convenient to make the first clamping ring 1 and the second clamping ring 2 slide more easily on the spindle when needed.

[0051] In this invention, the fixing mechanism 3 includes a docking block 301. Two docking blocks 301 are fixedly connected to the first clamping hoop 1 and the second clamping hoop 2 respectively, and the docking blocks 301 on the first clamping hoop 1 and the second clamping hoop 2 abut against each other. The two abutting docking blocks 301 are fixedly connected by bolts 302, and the bolts 302 are threaded with nuts 303. Before use, the first clamping hoop 1 and the second clamping hoop 2 can be opened first, and then the first clamping hoop 1 and the second clamping hoop 2 can be clamped on the appropriate part of the main shaft. Then, the corresponding bolts 302 are passed through the two abutting docking blocks 301, and then the bolts 302 are limited and fixed by nuts 303, thereby installing and fixing the first clamping hoop 1 and the second clamping hoop 2.

[0052] In this invention, the protective mechanism 7 includes a protective frame 701, which is fixedly connected to the mounting frame 403. A connecting shaft 705 is rotatably connected inside the protective frame 701. A collecting roller 706 is fixedly connected to the connecting shaft 705, and a covering cloth 707 is wound around the collecting roller 706. An insert block 702 is slidably connected to the protective frame 701. One end of the covering cloth 707 is fixedly connected to the connecting shaft 705, and the other end is fixedly connected to the insert block 702. The insert block 702 is fixedly... A push block 703 is fixedly connected, and a slot 704 is provided at the bottom of the inner cavity of the protective frame 701. A damping pad 709 is provided in the slot 704. A spring 708 is provided at each end of the connecting shaft 705. One end of the spring 708 is fixedly connected to the connecting shaft 705, and the other end is fixedly connected to the inside of the protective frame 701. The protective frame 701, insert block 702, push block 703, slot 704, connecting shaft 705, storage roller 706, and cover cloth 707 are configured. After testing, the spring 708 and damping pad 709 can be driven by the motor 601 to move the moving block 406 and the probe body 407 together until the probe body 407 moves into the interior of the protective frame 701. At the same time, the connecting wire 503 on the probe body 407 is engaged inside the top of the protective frame 701. Then, the push block 703 is pushed, which drives the insertion block 702 to move together. As the insertion block 702 moves, the cover 707 will gradually unfold to slowly cover the probe body 407. At this time, the storage roller 706 and the connecting shaft 705 rotate, and the spring 708 retracts until the insertion block 702 is inserted into the damping pad 709 in the slot 704. The cover 707 will then completely cover the probe body 407, thus providing protection for the probe body 407 when not in use and reducing wear on the probe body 407.

[0053] Working principle: Before use, depending on the actual situation, the first clamp 1 and the second clamp 2 can be opened first, then the first clamp 1 and the second clamp 2 can be clamped on the appropriate part of the main shaft, and then the corresponding bolts 302 can be passed through the two mating blocks 301 that abut against each other. Then the bolts 302 can be limited and fixed by the nut 303, thereby installing and fixing the first clamp 1 and the second clamp 2.

[0054] In use, the operator can manually hold the protective sleeve 405 on the handle 404 and rotate it. The handle 404 drives the mounting frame 403, which in turn rotates inside the slide groove 401 via the two rotating brackets 402. As the mounting frame 403 rotates, it also drives the moving block 406 on it to rotate. The rotation of the moving block 406 drives the probe body 407 to rotate as well. The ultrasonic flaw detector body 502 also rotates with the mounting frame 403 until the probe body 407 is adjusted to the area to be detected. Thus, through the probe body 407, in conjunction with the ultrasonic flaw detector body 502 and the connecting wire 503, it is convenient to detect any area on the transverse plane of the main shaft, making the operation more convenient.

[0055] Furthermore, if necessary, the motor 601 can be powered on, and the rotation of the motor 601 will drive the lead screw 602 to rotate. As the lead screw 602 rotates, it will drive the moving block 406 to move back and forth inside the mounting frame 403, thereby driving the probe body 407 on the moving block 406 to move together, thus facilitating the detection of any area on the longitudinal plane of the spindle and making the operation more convenient.

[0056] By setting multiple sets of ball bearings 8, after the first clamping ring 1 and the second clamping ring 2 are installed on the main shaft, it is convenient to make the first clamping ring 1 and the second clamping ring 2 slide more easily on the main shaft when needed.

[0057] Furthermore, after the test is completed, the moving block 406 and the probe body 407 can be moved together by the motor 601 until the probe body 407 moves into the interior of the protective frame 701. At the same time, the connecting wire 503 on the probe body 407 is engaged inside the top of the protective frame 701. Then, the push block 703 is pushed, which drives the insertion block 702 to move together. As the insertion block 702 moves, the cover 707 will gradually unfold and slowly cover the probe body 407. At this time, the storage roller 706 and the connecting shaft 705 rotate accordingly, and the spring 708 retracts at the same time until the insertion block 702 is inserted into the damping pad 709 in the slot 704. The cover 707 will then completely cover the probe body 407, thus providing protection for the probe body 407 when not in use and reducing wear on the probe body 407.

[0058] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A fault diagnosis device for a wind turbine generator, comprising a first clamp (1), characterized in that, The first clamp (1) is rotatably connected to the second clamp (2), and the first clamp (1) and the second clamp (2) are jointly provided with a fixing mechanism (3), the first clamp (1) and the second clamp (2) are jointly provided with a detection mechanism (4), the detection mechanism (4) is provided with a diagnostic mechanism (5), the detection mechanism (4) is provided with an adjustment mechanism (6), and the detection mechanism (4) is provided with a protective mechanism (7). The first clamp (1) and the second clamp (2) are provided with ball bearings (8). The detection mechanism (4) includes a slide groove (401). A slide groove (401) is provided at both ends of the first clamp (1) and the second clamp (2). A mounting frame (403) is provided on one side of the first clamp (1) and the second clamp (2). Two rotating frames (402) are fixedly connected to the mounting frame (403). The two rotating frames (402) are rotatably connected to the first clamp (1) and the second clamp (2) through the slide groove (401). A moving block (406) is slidably connected to the mounting frame (403). A probe body (407) is fixedly connected to the moving block (406). The diagnostic device (5) includes an ultrasonic flaw detector body (502), and the ultrasonic flaw detector body (502) is provided on the mounting frame (403). The adjustment mechanism (6) includes a motor (601), and the motor (601) is provided inside the mounting frame (403). A lead screw (602) is connected to the transmission end of the motor (601). The lead screw (602) is rotatably connected inside the mounting frame (403), and the lead screw (602) is threadedly connected inside the moving block (406). The protective mechanism (7) includes a protective frame (701), which is fixedly connected to the placement frame (403). A connecting shaft (705) is rotatably connected inside the protective frame (701). A collecting roller (706) is fixedly connected to the connecting shaft (705). A covering cloth (707) is wrapped around the collecting roller (706). An insert block (702) is slidably connected to the protective frame (701). One end of the covering cloth (707) is fixedly connected to the connecting shaft (705), and the other end is fixedly connected to the insert block (702). A push block (703) is fixedly connected to the insert block (702). When the push block (703) is pushed, the push block (703) drives the insert block (702) to move together. As the insert block (702) moves, the covering cloth (707) unfolds to cover the probe body (407).

2. The fault diagnosis device for wind turbine generators according to claim 1, characterized in that, The rotating frame (402) is J-shaped, the ends of the rotating frame (402) are arc-shaped, and the two rotating frames (402) are arranged opposite to each other.

3. The fault diagnosis device for wind turbine generators according to claim 1, characterized in that, A handle (404) is fixedly connected to the mounting frame (403), and a protective sleeve (405) is provided on the handle (404).

4. The fault diagnosis device for wind turbine generators according to claim 1, characterized in that, Two mounting blocks (501) are fixedly connected to the mounting frame (403). The ultrasonic flaw detector body (502) is mounted on both mounting blocks (501). The ultrasonic flaw detector body (502) is provided with a connecting wire (503), which is connected to the probe body (407).

5. A fault diagnosis device for wind turbines according to claim 1, characterized in that, The ball bearings (8) are provided in multiple groups within the first clamping ring (1) and the second clamping ring (2), and each group of the ball bearings (8) is provided with multiple balls, and the multiple balls (8) in each group are arranged in a ring array.

6. A fault diagnosis device for wind turbines according to claim 1, characterized in that, The fixing mechanism (3) includes a docking block (301). Two docking blocks (301) are fixedly connected to the first clamp (1) and the second clamp (2), and the docking blocks (301) on the first clamp (1) and the second clamp (2) abut against each other.

7. A fault diagnosis device for a wind turbine generator according to claim 6, characterized in that, Two mating blocks (301) are fixedly connected by bolts (302), and the bolts (302) are threaded with nuts (303).

8. A fault diagnosis device for wind turbine generators according to claim 1, characterized in that, The bottom of the inner cavity of the protective frame (701) is provided with a slot (704), and a damping pad (709) is provided in the slot (704).

9. A fault diagnosis device for a wind turbine generator according to claim 8, characterized in that, A spring (708) is provided at each end of the connecting shaft (705). One end of the spring (708) is fixedly connected to the connecting shaft (705), and the other end is fixedly connected to the inside of the protective frame (701).

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