Nondestructive testing device for wind power main shaft

Abstract

The utility model relates to the technical field of wind power main shaft detection, and discloses a wind power main shaft nondestructive testing device which comprises a placing frame used for supporting the two ends of a wind power main shaft; the rack is arranged above the placing frame; the coarse adjustment assembly comprises a horizontal sliding part and a circumferential sliding part arranged on the horizontal sliding part, the horizontal sliding part can slide on the rack in the length direction of the wind power main shaft, and the circumferential sliding part can circumferentially slide in the axis direction of the wind power main shaft; the fine adjustment assembly comprises a first fine adjustment part and a second fine adjustment part, the first fine adjustment part can slide in the length direction of the circumferential sliding part, and the overall length of the second fine adjustment part can be adjusted; and the detection assembly is arranged on the second fine adjustment part and used for detecting the quality of the wind power main shaft. The wind power main shaft detection device has the effect of improving the wind power main shaft detection efficiency.

Description

Technical Field

[0001] This application relates to the technical field of wind power spindle detection, and in particular to a non-destructive detection device for wind power spindles. Background Art

[0002] The wind power spindle, as an indispensable core in the wind turbine generator set, undertakes the mission of transmitting the rotational kinetic energy of the wind wheel to the generator, and is a key link in realizing the conversion of wind energy into electrical energy. However, under the continuous test of harsh environments such as low temperature and high salinity corrosion, the wind power spindle may experience degradation of material properties, such as ductile-brittle transition, which significantly increases the risk of spindle fracture.

[0003] In the non-destructive detection technology of wind power spindles, ultrasonic detection technology plays a crucial role. This technology emits ultrasonic pulses and detects and evaluates possible internal defects, such as cracks, by receiving the reflected echoes encountered by these pulses inside the spindle. This process can reveal the internal condition of the spindle in detail and provide strong data support for predicting and preventing possible failures.

[0004] However, due to its large volume and heavy mass, the wind power spindle has a large inertia, which makes the movement and operation of the spindle relatively cumbersome and time-consuming during the detection process, thus affecting the efficiency of the detection work. Utility Model Content

[0005] In order to improve the efficiency of detecting wind power spindles, this application provides a non-destructive detection device for wind power spindles.

[0006] The non-destructive detection device for wind power spindles provided by this application adopts the following technical solution:

[0007] A non-destructive detection device for wind power spindles, comprising:

[0008] A placement rack for supporting both ends of the wind power spindle;

[0009] A frame provided above the placement rack;

[0010] A coarse adjustment component, including a horizontal sliding part and a circumferential sliding part installed on the horizontal sliding part. The horizontal sliding part can slide on the frame along the length direction of the wind power spindle, and the circumferential sliding part can slide circumferentially around the axis direction of the wind power spindle;

[0011] A fine adjustment component, including a first fine adjustment part and a second fine adjustment part. The first fine adjustment part can slide along the length direction of the circumferential sliding part, and the overall length of the second fine adjustment part can be adjusted;

[0012] A detection component installed on the second fine adjustment part for detecting the quality of the wind power spindle;

[0013] When detecting the wind power main shaft, both ends of the wind power main shaft are placed on the placement rack, the position of the detection component is adjusted by the coarse adjustment component, and then the detection range of the detection component is further precisely adjusted by the fine adjustment component.

[0014] Optionally, for the horizontal sliding part guide rail, the horizontal sliding seat and the horizontal sliding driving unit, the guide rail is installed on the frame, the horizontal sliding seat slides on the guide rail, and the first fine adjustment part is installed on the horizontal sliding seat.

[0015] Optionally, the circumferential sliding part includes a sliding plate and a circumferential sliding driving unit. The sliding plate is installed on the horizontal sliding part, and the sliding plate is arranged as an arc-shaped plate, and the center of the arc is located on the side of the data sliding plate close to the wind power main shaft.

[0016] Optionally, the first fine adjustment part includes a fine adjustment seat and a first sliding driving unit, and the fine adjustment seat slides on the circumferential sliding part.

[0017] Optionally, the second fine adjustment part includes an adjusting rod, the overall length of which is adjustable, and the axis of the adjusting rod intersects with the axis of the wind power main shaft.

[0018] Optionally, the horizontal sliding driving unit includes a horizontal rack and a horizontal driving motor. The horizontal rack is installed on the frame, the horizontal driving motor is installed on the horizontal sliding seat, and a horizontal driving gear meshing with the horizontal rack is installed on the motor shaft of the horizontal driving motor.

[0019] Optionally, the circumferential sliding driving unit includes a circumferential rack and a circumferential driving motor. The circumferential rack is installed on the sliding plate, the circumferential driving motor is installed on the horizontal sliding seat, and a circumferential gear meshing with the circumferential rack is installed on the motor shaft of the circumferential driving motor.

[0020] Optionally, the first sliding driving unit includes a sliding driving motor and a sliding wheel. The sliding driving motor is installed on the fine adjustment seat, the sliding wheel is installed at the end of the motor shaft of the sliding driving motor, and the sliding wheel abuts against the sliding plate.

[0021] Optionally, the detection component includes an ultrasonic flaw detector, and the ultrasonic flaw detector is installed on the second fine adjustment part and at the end close to the wind power main shaft.

[0022] Optionally, the adjusting rod is an electric telescopic rod.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. Support both ends of the wind power main shaft through a placement rack to ensure the stability of the main shaft. Above the machine frame, the horizontal sliding part of the coarse adjustment component slides along the length direction of the main shaft, while the circumferential sliding part slides circumferentially around the axis of the main shaft to achieve the preliminary positioning of the detection component. The fine adjustment component further refines the detection position. The first fine adjustment part slides along the length direction of the circumferential sliding part, and the second fine adjustment part realizes precise distance adjustment through an adjustment rod with adjustable length. This design not only improves the detection efficiency, reduces the time and labor intensity of manual adjustment, but also ensures the accuracy and reliability of the detection results;

[0025] 2. Through the drive of the horizontal sliding drive unit, the stable movement of the horizontal sliding seat is realized, and then the first fine adjustment part is driven to make precise adjustment along the length direction of the main shaft. This design not only improves the operation convenience and detection accuracy of the detection device, but also reduces the need for manual adjustment through an automated adjustment process, improving the detection efficiency;

[0026] 3. The circumferential sliding part is composed of a sliding plate and a circumferential sliding drive unit. The sliding plate is installed on the horizontal sliding part and is designed as an arc-shaped plate, and its arc center is located on the side of the sliding plate close to the wind power main shaft. The circumferential sliding drive unit drives the arc-shaped sliding plate to slide circumferentially, and cooperates with the first fine adjustment part to achieve precise circumferential positioning of the detection component. It not only enhances the flexibility and accuracy of circumferential adjustment, but also provides technical support for the comprehensive detection of the wind power main shaft, ensuring the comprehensiveness and efficiency of non-destructive testing. Description of the Drawings

[0027] Figure 1 is the overall structural schematic diagram of the embodiment of the present application.

[0028] Figure 2 is the schematic diagram showing the structure of the fine adjustment component in the embodiment of the present application.

[0029] Description of the Reference Numerals:

[0030] 1. Placement rack; 2. Machine frame; 3. Coarse adjustment component; 31. Horizontal sliding part; 311. Guide rail; 312. Horizontal sliding seat; 313. Horizontal sliding drive unit; 3131. Horizontal rack; 3132. Horizontal drive motor; 32. Circumferential sliding part; 321. Sliding plate; 322. Circumferential sliding drive unit; 3221. Circumferential rack; 3222. Circumferential drive motor; 4. Fine adjustment component; 41. First fine adjustment part; 411. Fine adjustment seat; 412. First sliding drive unit; 42. Second fine adjustment part; 5. Detection component; 6. Wind power main shaft. Detailed Description of the Embodiment

[0031] The following will further describe the present application in detail with reference to the attached Figure 1 - Figure 2 drawings.

[0032] An embodiment of the present application discloses a non-destructive testing device for a wind power spindle.

[0033] A non-destructive testing device for a wind power spindle 6 includes a placement rack 1, a frame 2, a coarse adjustment assembly 3, a fine adjustment assembly 4, and a detection assembly 5. The placement rack 1 is located at the bottom of the entire device and is used to stably support both ends of the spindle. The frame 2 is located above the placement rack 1. The coarse adjustment assembly 3 is installed on the frame 2, the fine adjustment assembly 4 is installed on the coarse adjustment assembly 3, and the detection assembly 5 is installed on the fine adjustment assembly 4.

[0034] During the flaw detection process of the wind power spindle 6, through the horizontal and circumferential movements of the coarse adjustment assembly 3, the detection assembly 5 is roughly positioned in the detection area of the spindle. Through the fine adjustment of the position of the detection assembly 5 by the fine adjustment assembly 4, it is ensured that the ultrasonic flaw detector can accurately align with the detection point. Thus, the flexibility and accuracy of the detection are improved, the complexity of manual operation is reduced, and automated and high-efficiency non-destructive testing is achieved.

[0035] The coarse adjustment assembly 3 is composed of a horizontal sliding part 31 and a circumferential sliding part 32. The horizontal sliding part 31 is equipped with a guide rail 311 and a horizontal sliding seat 312. The guide rail 311 is fixed on the frame 2, and the horizontal sliding seat 312 moves linearly along the guide rail 311 and is driven and controlled by a horizontal sliding drive unit 313.

[0036] The circumferential sliding part 32 is installed on the horizontal sliding seat 312. Through the drive of the circumferential sliding drive unit 322, circumferential adjustment around the axis of the wind power spindle 6 is achieved. Its sliding plate 321 with an arc design can closely fit the curved surface of the spindle, ensuring the comprehensiveness of detection.

[0037] The horizontal sliding drive unit 313 consists of a horizontal rack 3131 and a horizontal drive motor 3132. The horizontal rack 3131 is fixed on the frame 2 and is connected to the motor shaft of the horizontal drive motor 3132 on the horizontal sliding seat 312. A horizontal drive gear meshing with the rack is installed on the motor shaft. The horizontal sliding seat 312 is driven to move linearly along the guide rail 311 by the horizontal drive motor 3132.

[0038] The circumferential sliding drive unit 322 is composed of a circumferential rack 3221 and a circumferential drive motor 3222. The circumferential rack 3221 is installed on the arc-shaped sliding plate 321, and the circumferential drive motor 3222 is fixed on the horizontal sliding seat 312. A circumferential tooth meshing with the circumferential rack 3221 is installed at the end of the motor shaft. By the rotation of the circumferential drive motor 3222, the circumferential sliding part 32 can rotate circumferentially around the axis of the wind power spindle 6, increasing the flaw detection range of the detection assembly 5.

[0039] Through the coordinated action of the horizontal sliding drive unit 313 and the circumferential sliding drive unit 322, the detection component 5 can be roughly adjusted in both the horizontal and circumferential directions, quickly positioned to the area to be detected of the wind power main shaft 6, ensuring a comprehensive detection of the wind power main shaft 6, improving the detection coverage rate and efficiency, enhancing the adaptability of the detection device, and at the same time ensuring the accuracy and repeatability of the detection process.

[0040] The fine adjustment component 4 consists of a first fine adjustment part 41 and a second fine adjustment part 42. The first fine adjustment part 41 includes a fine adjustment seat 411 and a first sliding drive unit 412. The first sliding drive unit 412 is fixedly installed on the fine adjustment seat 411. The first sliding drive unit 412 includes a sliding drive motor and a sliding wheel fixedly installed on the motor shaft of the sliding drive motor. The first fine adjustment part 41 is installed on the horizontal sliding seat 312. By driving the sliding wheel by the sliding drive motor to contact the sliding plate 321 of the circumferential sliding part 32, precise movement along the length direction of the circumferential sliding part 32 is achieved. The second fine adjustment part 42 includes an adjustment rod. In this embodiment, the adjustment rod is an electric telescopic rod, and its axis intersects with the axis of the wind power main shaft 6 to achieve precise control of the detection depth.

[0041] In this embodiment, the detection component 5 is an ultrasonic flaw detector. After the rough adjustment component 3 moves the ultrasonic flaw detector to the approximate position of the wind power main shaft 6, the first fine adjustment part 41 is adjusted along the circumferential sliding part 32, and the second fine adjustment part 42 is precisely adjusted in the depth direction through the electric telescopic rod. The fine adjustment of the fine adjustment component 4 makes the detection component 5 closer to the main shaft surface, ensuring that the detection wave effectively enters and reflects, and obtaining high-quality detection signals.

[0042] The implementation principle of a non-destructive detection device for a wind power main shaft 6 in an embodiment of the present application is as follows: When detecting the wind power main shaft 6 for flaws, first place the two ends of the main shaft stably on the placement rack 1. Then, use the rough adjustment component 3 above the machine frame 2. The horizontal sliding part 31 moves along the length direction of the wind power main shaft 6, and the circumferential sliding part 32 adjusts circumferentially around the main shaft axis to achieve the preliminary positioning of the ultrasonic flaw detector. The first fine adjustment part 41 further finely adjusts along the length direction of the circumferential sliding part 32, and the second fine adjustment part 42 precisely adjusts in the depth direction through the electric telescopic rod to ensure that the detection component 5 is precisely aligned with the area to be detected of the main shaft. The two-stage adjustment mechanism improves the flexibility and accuracy of the detection. The automatic control simplifies the manual operation and improves the detection efficiency and reliability.

[0043] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A non-destructive testing device for a wind power spindle, characterized in that: including; a placing rack (1) for supporting both ends of a wind power main shaft (6); a machine frame (2) arranged above the placing rack (1); a coarse adjustment assembly (3) including a horizontal sliding part (31) and a circumferential sliding part (32) installed on the horizontal sliding part (31), the horizontal sliding part (31) can slide on the machine frame (2) along the length direction of the wind power main shaft (6), and the circumferential sliding part (32) can slide circumferentially around the axis direction of the wind power main shaft (6); a fine adjustment assembly (4) including a first fine adjustment part (41) and a second fine adjustment part (42), the first fine adjustment part (41) can slide along the length direction of the circumferential sliding part (32), and the overall length of the second fine adjustment part (42) can be adjusted; a detection assembly (5) installed on the second fine adjustment part (42) for detecting the mass of the wind power main shaft (6); When detecting the wind power main shaft (6), both ends of the wind power main shaft (6) are placed on the placing rack (1), the position of the detection assembly (5) is adjusted by the coarse adjustment assembly (3), and then the detection range of the detection assembly (5) is further accurately adjusted by the fine adjustment assembly (4).

2. The non-destructive detection device for a wind power main shaft according to claim 1, characterized in that: The horizontal sliding part (31) includes a guide rail (311), a horizontal sliding seat (312) and a horizontal sliding driving unit (313), the guide rail (311) is installed on the machine frame (2), the horizontal sliding seat (312) slides on the guide rail (311), and the first fine adjustment part (41) is installed on the horizontal sliding seat (312).

3. The non-destructive detection device for a wind power main shaft according to claim 1, characterized in that: The circumferential sliding part (32) includes a sliding plate (321) and a circumferential sliding driving unit (322), the sliding plate (321) is installed on the horizontal sliding part (31), and the sliding plate (321) is arranged as an arc-shaped plate, and the center of the arc is located on the side of the data sliding plate (321) close to the wind power main shaft (6).

4. The non-destructive detection device for a wind power main shaft according to claim 1, characterized in that: The first fine adjustment part (41) includes a fine adjustment seat (411) and a first sliding driving unit (412), and the fine adjustment seat (411) slides on the circumferential sliding part (32).

5. The non-destructive detection device for a wind power main shaft according to claim 1, characterized in that: The second fine adjustment part (42) includes an adjusting rod, the overall length is adjustable, and the axis of the adjusting rod intersects with the axis of the wind power main shaft (6).

6. The non-destructive detection device for a wind power main shaft according to claim 2, characterized in that: The horizontal sliding driving unit (313) includes a horizontal rack (3131) and a horizontal driving motor (3132), the horizontal rack (3131) is installed on the machine frame (2), the horizontal driving motor (3132) is installed on the horizontal sliding seat (312), and a horizontal driving gear meshing with the horizontal rack (3131) is installed on the motor shaft of the horizontal driving motor (3132).

7. The non-destructive testing device for a wind power spindle according to claim 3, characterized in that: The circumferential sliding drive unit (322) includes a circumferential rack (3221) and a circumferential drive motor (3222). The circumferential rack (3221) is installed on the sliding plate (321), the circumferential drive motor (3222) is installed on the horizontal sliding seat (312), and a circumferential gear meshing with the circumferential rack (3221) is installed on the motor shaft of the circumferential drive motor (3222).

8. The non-destructive testing device for a wind power spindle according to claim 4, characterized in that: The first sliding drive unit (412) includes a sliding drive motor and a sliding wheel. The sliding drive motor is installed on the fine adjustment seat (411), the sliding wheel is installed at the end of the motor shaft of the sliding drive motor, and the sliding wheel abuts against the sliding plate (321).

9. The non-destructive testing device for a wind power spindle according to claim 1, characterized in that: The detection assembly (5) includes an ultrasonic flaw detector, and the ultrasonic flaw detector is installed on the second fine adjustment part (42) and at the end close to the wind power spindle (6).

10. The non-destructive testing device for a wind power spindle according to claim 5, characterized in that: The adjusting rod is an electric telescopic rod.

Images