Fan blade rotation detection equipment

Abstract

The utility model relates to the technical field of fan quality inspection equipment, and discloses fan blade rotation detection equipment, which comprises a detection mechanism, the detection mechanism comprises an annular seat, a driving mechanism is arranged in the middle of the annular seat, a detection analysis mechanism is arranged at the top end of the annular seat, and the driving mechanism comprises a driving motor arranged at the central position in the annular seat. And the driving end above the driving motor is fixedly connected with a fan blade mounting mechanism. According to the utility model, the high-precision sensing detection structure design is adopted, the optical fiber sensors with higher sensitivity and resolution ratio are selected to replace the traditional strain gauge type sensors, the optical fiber sensors have better sensing ability to micro strain and displacement changes, and the four optical fiber sensors are arranged at the same time, so that the detection accuracy is improved; the four optical fiber sensors are arranged below the fan blade mounting mechanism of the driving mechanism in an equal-angle shape, and the data processing host is arranged in a matched mode and connected with the four optical fiber sensors through connecting wires, so that the detection precision can be improved.

Description

Technical Field

[0001] This utility model relates to the technical field of wind turbine quality inspection equipment, specifically wind turbine blade rotation detection equipment. Background Technology

[0002] Wind turbine blade rotation monitoring is a crucial step in ensuring the safe and efficient operation of the wind turbine. The monitoring includes checking the rotational status, such as the blade's rotational speed and direction of rotation, and detecting any jamming, wobbling, or abnormal vibrations. Poorly balanced blades will vibrate at high speeds, which not only reduces the fan's lifespan but may also increase noise and interfere with the normal operation of the vehicle's lighting cooling system.

[0003] Existing wind turbine blade dynamic balancing testing equipment still has the following problems when in use: its detection accuracy is limited, and the accuracy and sensitivity of the sensor will affect the accuracy of the dynamic balancing test. For example, when detecting small imbalances, some low-cost strain gauge sensors may not be able to accurately detect small strain changes, resulting in errors in the test results. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a wind turbine blade rotation detection device, which solves the problems mentioned in the background technology.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a wind turbine blade rotation detection device, comprising a detection mechanism, the detection mechanism including an annular seat, a driving mechanism disposed in the middle of the annular seat, and a detection and analysis mechanism disposed at the top of the annular seat. The driving mechanism includes a driving motor disposed at the center of the annular seat, and a wind turbine blade mounting mechanism is fixedly connected to the driving end above the driving motor. The detection and analysis mechanism includes a set of four fiber optic sensors fixedly connected to the top of the annular seat and arranged at equal angles around the wind turbine blade mounting mechanism. A data processing host is fixedly installed on one side of the top of the annular seat. The data processing host is connected to the four fiber optic sensors through connecting lines. One end of the data processing host is provided with a data interface, a power supply interface, and a heat dissipation hole. The four fiber optic sensors are located below the wind turbine blade mounting mechanism.

[0008] As a further embodiment of this utility model: four second mounting seats are fixedly connected at equal angles to the outer side of the bottom end of the annular seat, and a shock-absorbing base is provided at the bottom end of the four second mounting seats. The shock-absorbing base includes a base ring located directly below the annular seat. Four first mounting seats are fixedly connected at equal angles to the top end of the base ring. A vibration damper is rotatably installed in the first mounting seat, and the fixed end above the vibration damper is rotatably connected to the second mounting seat on its corresponding side.

[0009] As a further improvement of this utility model: a U-shaped frame is fixedly connected to the bottom end of the annular seat, and a drive motor is fixedly installed at the top end of the U-shaped frame.

[0010] As a further embodiment of this utility model: the wind turbine blade mounting mechanism includes a connecting seat fixedly connected to the drive end above the drive motor, and a connecting frame fixedly sleeved on the outside of the connecting seat. The connecting frame is a cross shape and has mounting grooves between the upper and lower side walls at the four ends.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. In this utility model, by adopting a high-precision sensing and detection structure design, it selects fiber optic sensors with higher sensitivity and resolution to replace traditional strain gauge sensors. Fiber optic sensors have better sensing capabilities for minute strain and displacement changes. It is equipped with four fiber optic sensors, which are arranged at equal angles below the fan blade mounting mechanism of the drive mechanism. A data processing host is provided to connect the four fiber optic sensors via connecting lines, which can improve the detection accuracy.

[0013] 2. In this utility model, by adding an active vibration damping mechanism, the detection mechanism is set above a vibration damping base. The vibration damping base includes a base ring, and four first mounting seats are fixedly installed at equal angles on the top of the base ring. Each first mounting seat is rotatably connected to a corresponding second mounting seat above it through a vibration damper. The four second mounting seats are fixedly connected to the bottom of the annular seat of the detection mechanism. These vibration dampers can actively generate reverse vibrations to offset external interference based on the detected external vibration signals, thereby providing a more stable environment for the detection mechanism. Attached Figure Description

[0014] Figure 1 The overall three-dimensional structure of this utility model Figure 1 ;

[0015] Figure 2 The overall three-dimensional structure of this utility model Figure 2 ;

[0016] Figure 3 This is a perspective view of the shock-absorbing base of this utility model;

[0017] Figure 4 This is a three-dimensional view of the testing mechanism of this utility model.

[0018] In the diagram: 1. Vibration damping base; 2. Detection mechanism; 11. Base ring; 12. First mounting seat; 13. Vibration damper; 21. Ring seat; 22. Second mounting seat; 23. Fiber optic sensor; 24. Data processing host; 25. Connecting cable; 26. U-shaped frame; 27. Drive motor; 28. Connecting seat; 29. ​​Connecting frame. Detailed Implementation

[0019] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0020] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Please see Figures 1-4In this embodiment of the invention, the wind turbine blade rotation detection device includes a detection mechanism 2. The detection mechanism 2 includes an annular seat 21, a driving mechanism is provided in the middle of the annular seat 21, and a detection and analysis mechanism is provided at the top of the annular seat 21. The driving mechanism includes a driving motor 27 located at the center of the annular seat 21. A wind turbine blade mounting mechanism is fixedly connected to the driving end above the driving motor 27. The detection and analysis mechanism includes a set of four fiber optic sensors 23 fixedly connected to the top of the annular seat 21 and arranged at equal angles around the wind turbine blade mounting mechanism. A data processing host 24 is fixedly installed on one side of the top of the annular seat 21. The data processing host 24 is connected to the wind turbine blade mounting mechanism via a connecting cable. Four fiber optic sensors 23 are connected via cable 25. The data processing host 24 has a data interface, a power supply interface, and a heat dissipation hole at one end. The four fiber optic sensors 23 are located below the wind turbine blade mounting mechanism. The overall design adopts a high-precision sensing and detection structure. It uses fiber optic sensors 23 with higher sensitivity and resolution to replace the traditional strain gauge sensors. The fiber optic sensors 23 have better sensing capabilities for small strain and displacement changes. Four fiber optic sensors 23 are set at equal angles below the wind turbine blade mounting mechanism of the drive mechanism. A data processing host 24 is connected to the four fiber optic sensors 23 via connecting cable 25, which can improve the detection accuracy.

[0023] Four second mounting seats 22 are fixedly connected at equal angles to the outer side of the bottom of the annular seat 21. A damping base 1 is provided at the bottom of each of the four second mounting seats 22. The damping base 1 includes a base ring 11 located directly below the annular seat 21. Four first mounting seats 12 are fixedly connected at equal angles to the top of the base ring 11. A vibration damper 13 is rotatably mounted inside each first mounting seat 12. The fixed end of the vibration damper 13 is rotatably connected to the corresponding second mounting seat 22 on its side. The entire system incorporates an active vibration damping mechanism. The detection mechanism 2 is located above the damping base 1. The damping base 1 includes a base ring 11. Four first mounting seats 12 are fixedly mounted at equal angles to the top of the base ring 11. Each first mounting seat 12 is rotatably connected to the corresponding second mounting seat 22 above it via a vibration damper 13. The four second mounting seats 22 are fixedly connected to the bottom of the annular seat 21 of the detection mechanism 2. These vibration dampers 13 can actively generate reverse vibrations to counteract external interference based on detected external vibration signals, thereby providing a more stable environment for the detection mechanism 2.

[0024] A U-shaped frame 26 is fixedly connected to the bottom of the ring seat 21, and a drive motor 27 is fixedly installed at the top of the U-shaped frame 26. The U-shaped frame 26 serves to fix the drive motor 27 at the center of the ring seat 21.

[0025] The wind turbine blade mounting mechanism includes a connecting seat 28 fixedly connected to the drive end above the drive motor 27. A connecting frame 29 is fixedly sleeved on the outside of the connecting seat 28. The connecting frame 29 is a cross shape and has mounting grooves between the upper and lower side walls at the four ends. The wind turbine blade to be dynamically balanced can be fixedly mounted by the mounting grooves on the connecting frame 29 in conjunction with the mounting components, and driven to rotate by the drive motor 27.

[0026] The working principle of this utility model is as follows: The connecting frame 29 is a cross shape with mounting grooves between the upper and lower side walls at the four ends. The wind turbine blade to be dynamically balanced can be fixedly installed through the mounting grooves on the connecting frame 29 in conjunction with the mounting components, and driven to rotate by its drive motor 27. The overall wind turbine blade dynamic balancing detection equipment detects the unbalanced force generated when the blade rotates through the fiber optic sensor 23, and can measure the unbalanced information when the blade rotates. The whole adopts a high-precision sensing and detection structure design, and uses fiber optic sensors 23 with higher sensitivity and resolution to replace the traditional strain gauge sensors. The fiber optic sensor 23 has a better ability to sense small strain and displacement changes. It is equipped with four fiber optic sensors 23, which are set at equal angles below the wind turbine blade mounting mechanism of the drive mechanism. A data processing host 24 is set to connect the four fiber optic sensors 23 through the connecting line 25, which can improve the detection accuracy.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A wind turbine blade rotation detection device, including a detection mechanism (2); Its features are: The detection mechanism (2) includes an annular seat (21), a driving mechanism is provided in the middle of the annular seat (21), a detection and analysis mechanism is provided at the top of the annular seat (21), and four second mounting seats (22) are fixedly connected at equal angles on the outer side of the bottom end of the annular seat (21). The bottom ends of the four second mounting bases (22) are provided with shock-absorbing bases (1); The driving mechanism includes a driving motor (27) located at the center of the annular seat (21), and a fan blade mounting mechanism is fixedly connected to the driving end above the driving motor (27). The detection and analysis mechanism includes a set of fiber optic sensors (23) fixedly connected to the top of the annular seat (21). The set of fiber optic sensors (23) consists of four sensors arranged at equal angles around the wind turbine blade mounting mechanism. A data processing host (24) is fixedly installed on one side of the top of the annular seat (21). The data processing host (24) is connected to the four fiber optic sensors (23) via a connecting line (25).

2. The wind turbine blade rotation detection device according to claim 1, characterized in that: The shock-absorbing base (1) includes a base ring (11) located directly below the annular base (21), and four first mounting seats (12) are fixedly connected to the top of the base ring (11) at equal angles.

3. The wind turbine blade rotation detection device according to claim 2, characterized in that: A vibration damper (13) is rotatably mounted inside the first mounting base (12), and the fixed end above the vibration damper (13) is rotatably connected to the second mounting base (22) on its corresponding side.

4. The wind turbine blade rotation detection device according to claim 1, characterized in that: The data processing host (24) is provided with a data interface, a power supply interface and a heat dissipation hole at one end, and the four fiber optic sensors (23) are located below the wind turbine blade mounting mechanism.

5. The wind turbine blade rotation detection device according to claim 1, characterized in that: The bottom end of the annular seat (21) is fixedly connected to a U-shaped frame (26), and the top end of the U-shaped frame (26) is fixedly installed with a drive motor (27).

6. The wind turbine blade rotation detection device according to claim 1, characterized in that: The wind turbine blade mounting mechanism includes a connecting seat (28) fixedly connected to the drive end above the drive motor (27).

7. The wind turbine blade rotation detection device according to claim 6, characterized in that: The connecting seat (28) is fixedly sleeved with a connecting frame (29) on the outside. The connecting frame (29) is a cross shape and has mounting grooves between the upper and lower side walls at the four ends.

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