Fan blade pair zero tooling

Abstract

The utility model provides a fan blade is to zero tooling, including fan base and wind vane hub, be equipped with detachable magnetic attraction seat on the fan base, be equipped with universal damper bar on the magnetic attraction seat, be equipped with mounting seat on the universal damper bar, one side of mounting seat is equipped with detachable photosensitive plate, one side of photosensitive plate is equipped with second joint groove, be equipped with detachable laser receiver in second joint groove, the top of laser receiver is equipped with laser emitter, be equipped with reflector on the zero scale line on the wind vane hub, the utility model provides a fan blade is to zero tooling, through magnetic attraction seat quick fixed in fan base, utilizes the cooperation of laser emitter, receiver and reflector and realizes non - contact precision positioning, effectively avoided the human error of visual method, improved the operation and maintenance efficiency of wind power field.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine zeroing, and in particular to a wind turbine blade zeroing tooling. Background Technology

[0002] During the installation and maintenance of wind turbine generator sets, aligning the wind turbine blades to zero is a crucial step in ensuring the stable operation of the unit. Its accuracy directly affects the power generation efficiency and service life of the unit. The industry generally uses the visual inspection method to perform blade zeroing operations. This method mainly relies on the experience of the operators and completes the calibration by observing the relative position of the zero mark on the blade hub and the reference mark.

[0003] However, the visual inspection method has significant drawbacks. The operation process requires multiple people to cooperate in adjustment, the steps are cumbersome, and it is easily affected by factors such as ambient light and observation angle, making it difficult to guarantee calibration accuracy and usually resulting in large errors. On the other hand, each zeroing operation takes a long time, especially when large-scale wind farm maintenance is carried out in batches, the problem of low efficiency is more prominent, which seriously restricts the operation and maintenance progress of the units.

[0004] As modern wind turbines develop towards larger and more precise designs, traditional visual inspection methods can no longer meet the stringent requirements for blade zero-alignment accuracy and operational efficiency. A new type of zero-alignment tooling is urgently needed to solve these technical challenges. Utility Model Content

[0005] The main purpose of this invention is to provide a blade zeroing tooling for wind turbines, which solves the problem of low accuracy in the traditional visual blade zeroing method.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a fan blade zero-alignment tooling, including a fan base and a fan blade hub, a detachable magnetic seat is provided on the fan base, a universal damping rod is provided on the magnetic seat, a mounting seat is provided on the universal damping rod, and a detachable photosensitive plate is provided on one side of the mounting seat.

[0007] A second bonding groove is provided on one side of the photosensitive plate, and a detachable laser receiver is provided in the second bonding groove. A laser emitter is provided above the laser receiver.

[0008] A reflector is installed on the zero mark line on the wind turbine hub.

[0009] In the preferred embodiment, a rotatable turntable is provided on one side of the magnetic base, a handle base is provided on one side of the turntable, a handle hole is provided on one side of the handle base, and a detachable rotating handle is provided in the handle hole;

[0010] The turntable is connected to the permanent magnet of the magnetic base.

[0011] In the preferred embodiment, a rotating seat is provided on one side of the mounting base, and a universal damping rod is arranged between the rotating seat and the magnetic seat.

[0012] In the preferred embodiment, a mounting groove is provided on one side of the mounting base, and a magnet is provided at the bottom of the mounting groove. The photosensitive plate is placed in the mounting groove, and the magnet is used to attract the photosensitive plate.

[0013] In the preferred embodiment, the laser receiver is provided with a first bonding groove around its periphery, and side plates are provided on both sides of the first bonding groove.

[0014] In the preferred embodiment, the side plate is made of flexible rubber.

[0015] In the preferred embodiment, a receiving slot is provided below the laser receiver for receiving the laser reflected from the reflector.

[0016] In the preferred embodiment, both the mounting base and the photosensitive plate are arc-shaped, with a first arc-shaped bend above the mounting base and a second arc-shaped bend above the photosensitive plate.

[0017] In the preferred embodiment, the shape of the second arc bend matches that of the first arc bend.

[0018] This utility model provides a zero-alignment fixture for wind turbine blades, which has the following advantages: The zero-alignment fixture for wind turbine blades provided by this utility model can be quickly fixed to the wind turbine base by a magnetic base, and achieve non-contact precise positioning by using the cooperation of a laser emitter, receiver and reflector, which effectively avoids human error by visual inspection, improves the operation and maintenance efficiency of wind farms and reduces labor costs. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0020] Figure 1 This is an isometric view of the tooling of this utility model;

[0021] Figure 2 This is an isometric view of the tooling in another direction of this utility model;

[0022] Figure 3 This is an axonometric view of the laser receiver of this utility model;

[0023] Figure 4 This is a cross-sectional schematic diagram of the tooling of this utility model;

[0024] Figure 5 This is a schematic diagram of the installation position of the zero tooling in this utility model.

[0025] In the diagram: Magnetic base 1; Universal damping rod 2; Mounting base 3; Photosensitive plate 4; Laser receiver 5; Laser emitter 6; Turntable 7; Handle base 8; Handle hole 9; Rotating handle 10; Rotating base 11; First arc bend 12; Mounting groove 13; First connecting groove 14; Second arc bend 15; Second connecting groove 16; Side plate 17; Receiving groove 18; Magnet 19; Fan base 20; Fan impeller hub 21; Reflector 22. Detailed Implementation

[0026] Example 1

[0027] like Figures 1-5 As shown, a blade zero-mounting fixture for a wind turbine includes a wind turbine base 22 and a wind turbine hub 21. The wind turbine base 22 is provided with a detachable magnetic seat 1, the magnetic seat 1 is provided with a universal damping rod 2, the universal damping rod 2 is provided with a mounting seat 3, and a detachable photosensitive plate 4 is provided on one side of the mounting seat 3.

[0028] A second bonding groove 16 is provided on one side of the photosensitive plate 4, a detachable laser receiver 5 is provided in the second bonding groove 16, and a laser emitter 6 is provided above the laser receiver 5.

[0029] A reflector 22 is provided on the zero mark line of the wind turbine hub 21.

[0030] In the preferred embodiment, a rotatable turntable 7 is provided on one side of the magnetic base 1, a handle base 8 is provided on one side of the turntable 7, a handle hole 9 is provided on one side of the handle base 8, and a detachable rotating handle 10 is provided in the handle hole 9.

[0031] Turntable 7 is connected to the permanent magnet of magnetic base 1.

[0032] In the preferred embodiment, a rotating seat 11 is provided on one side of the mounting base 3, and a universal damping rod 2 is arranged between the rotating seat 11 and the magnetic seat 1.

[0033] In the preferred embodiment, a mounting groove 13 is provided on one side of the mounting base 3, and a magnet 19 is provided at the bottom of the mounting groove 13. The photosensitive plate 4 is arranged in the mounting groove 13, and the magnet 19 is used to attract the photosensitive plate 4.

[0034] In the preferred embodiment, the laser receiver 5 is provided with a first coupling groove 14 around its periphery, and side plates 17 are provided on both sides of the first coupling groove 14.

[0035] In the preferred embodiment, the side plate 17 is made of flexible rubber.

[0036] In a preferred embodiment, a receiving slot 18 is provided below the laser receiver 5, which is used to receive the laser reflected from the reflector 22.

[0037] In the preferred embodiment, both the mounting base 3 and the photosensitive plate 4 are arc-shaped, with a first arc-shaped bend 12 above the mounting base 3 and a second arc-shaped bend 15 above the photosensitive plate 4.

[0038] In the preferred embodiment, the second arc-shaped bend 15 matches the shape of the first arc-shaped bend 12.

[0039] The detailed working method of a fan blade zero-tool is as follows: The magnetic seat 1 on the fan base 22 is installed and fixed, and its detachable characteristics ensure a stable connection. Then, a universal damping rod 2 is installed on the magnetic seat 1. One end of the universal damping rod 2 is connected to the magnetic seat 1, and the other end is connected to the rotating seat 11 on one side of the mounting base 3. The position and angle of the mounting base 3 can be adjusted by utilizing the flexibility of the universal damping rod 2.

[0040] The mounting base 3 has a mounting groove 13 on one side, and a magnet 19 is provided at the bottom of the mounting groove 13. When the photosensitive plate 4 is placed in the mounting groove 13, the magnet 19 will attract the photosensitive plate 4, realizing a detachable connection between the photosensitive plate 4 and the mounting base 3. Since both the mounting base 3 and the photosensitive plate 4 are curved, and the first curved bend 12 of the mounting base 3 matches the second curved bend 15 of the photosensitive plate 4, a tight fit between the two can be ensured.

[0041] A detachable laser receiver 5 is installed in the second bonding groove 16 of the photosensitive plate 4. Flexible rubber side plates 17 are provided on both sides of the first bonding groove 14 around the laser receiver 5, which can protect and fix the laser receiver 5.

[0042] Subsequently, the laser emitter 6 on the zero-point tooling is aligned with the zero-point base of the wind turbine base 20 to complete the benchmark positioning. Then, a reflector 22 is placed at the zero-point benchmark line in the wind turbine hub 21, and the laser emitter 6 and the reflector 22 are adjusted to a certain angle so that the laser emitted by the laser emitter 6 can be reflected back into the receiving slot 18. The light signal is then transmitted to the maintenance plate by the laser receiver 5. The operator only needs to check the signal parameters to determine the zero-point status.

[0043] Once everything is ready, start the fan hub 21. As the fan hub 21 rotates, it drives the reflector 22 to rotate as well. When the reflector 22 rotates to the bottom of the laser emitter 6, the laser emitted by the laser emitter 6 will be reflected by the reflector 22, and the reflected laser will enter the receiving slot 18 below the laser receiver 5.

[0044] After receiving the laser signal, the laser receiver 5 processes it. The operator holds a tablet to receive the processed laser signal and uses the signal information displayed on the tablet to determine whether the wind turbine hub 21 has reached the zero position, thus completing the zeroing operation of the wind turbine hub 21.

[0045] This zeroing device can also use remote signal transmission, allowing maintenance personnel to complete the zeroing of the impeller hub 21 from under the wind turbine tower. The laser emitter 6 can be activated periodically, and the calibration data can be compared with the periodically collected data to identify the wind turbines that need to be inspected. During on-site maintenance, only the zeroing fixture with unstable signals needs to be calibrated, which reduces labor costs.

[0046] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A blade zero-alignment fixture for a wind turbine, comprising a wind turbine base (20) and a blade hub (21), characterized in that: A detachable magnetic base (1) is provided on the fan base (20), a universal damping rod (2) is provided on the magnetic base (1), a mounting seat (3) is provided on the universal damping rod (2), and a detachable photosensitive plate (4) is provided on one side of the mounting seat (3). A second bonding groove (16) is provided on one side of the photosensitive plate (4), and a detachable laser receiver (5) is provided in the second bonding groove (16), and a laser emitter (6) is provided above the laser receiver (5). A reflector (22) is provided on the zero mark line on the wind turbine hub (21).

2. The blade zero-position tooling according to claim 1, characterized in that: A rotatable turntable (7) is provided on one side of the magnetic base (1), a handle seat (8) is provided on one side of the turntable (7), a handle hole (9) is provided on one side of the handle seat (8), and a detachable rotating handle (10) is provided in the handle hole (9). The turntable (7) is connected to the permanent magnet of the magnetic base (1).

3. The blade zero-position tooling according to claim 1, characterized in that: A rotating seat (11) is provided on one side of the mounting base (3), and a universal damping rod (2) is arranged between the rotating seat (11) and the magnetic seat (1).

4. The blade zero-position tooling according to claim 1, characterized in that: The mounting base (3) has a mounting groove (13) on one side, and a magnet (19) is provided at the bottom of the mounting groove (13). The photosensitive plate (4) is placed in the mounting groove (13), and the magnet (19) is used to attract the photosensitive plate (4).

5. The blade zero-alignment tooling according to claim 1, characterized in that: The laser receiver (5) is provided with a first connecting groove (14) around its periphery, and side plates (17) are provided on both sides of the first connecting groove (14).

6. The blade zero-position tooling according to claim 5, characterized in that: The side plate (17) is made of flexible rubber.

7. The blade zero-alignment tooling according to claim 1, characterized in that: Below the laser receiver (5) is a receiving slot (18) for receiving the laser reflected from the reflector (22).

8. The blade zero-alignment tooling according to claim 1, characterized in that: Both the mounting base (3) and the photosensitive plate (4) are arc-shaped. The mounting base (3) has a first arc-shaped bend (12) above it, and the photosensitive plate (4) has a second arc-shaped bend (15) above it.

9. The blade zero-alignment tooling according to claim 8, characterized in that: The second arc bend (15) matches the shape of the first arc bend (12).

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