Wind power blade locking tool

Abstract

The utility model discloses a wind power blade locking tool which comprises a wind power bearing, a cover plate is arranged at the outer end of an inner bearing sleeve, a plurality of connecting columns which are annularly distributed and correspond to positioning through holes in the end of a blade one to one are arranged on the cover plate, and the connecting columns penetrate through the positioning through holes. A locking cap for covering the end part of the connecting column is arranged at the outer end part of the connecting column, and the outer end part of the locking cap is hemispherical; a lead hole is formed in the middle of the cover plate, a first vibration sensor is arranged at the position, close to the connecting position of the cover plate, of the interior of the blade, and a second positive vibration sensor is arranged on the cover plate. And the blades are easy to fall off in subsequent work, so that fan accidents are caused.

Description

Technical Field

[0001] The utility model relates to the technical field related to wind power, in particular to a blade locking tool for wind power. Background Art

[0002] In recent years, the development and utilization of renewable energy has garnered widespread attention worldwide. Wind power, as the most widely used renewable energy source, has been extensively researched and utilized. With the rapid development and mature application of wind power technology since the 21st century, competition between wind power and other energy sources has become increasingly fierce. Ensuring the safe and stable operation of wind turbines, improving their power generation capacity, reducing downtime and operational downtime, and thereby enhancing efficiency in an increasingly competitive energy market are increasingly crucial. Existing blades are mostly secured with bolts. However, if a bolt becomes loose, the blades become unstable. If power generation continues at this point, the blades will vibrate abnormally, potentially causing accidents. Utility Model Content

[0003] In order to solve the defect in the prior art that most of the existing blades are fixed with bolts, but if a bolt becomes loose, the blade will be unstable. If power generation continues at this time, the blade will shake abnormally, which may easily cause an accident, the utility model provides a blade locking tool for wind power.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] The utility model discloses a blade locking tool for wind power, comprising a wind power bearing, and the wind power bearing comprises an outer bearing sleeve and an inner bearing sleeve, the outer bearing sleeve is provided with a positioning flange fixed to the wind power hub, the inner end of the inner bearing sleeve is provided with an annular tube, the annular tube is provided with an inner gear ring, the outer end of the inner bearing sleeve is provided with a cover plate, and the cover plate is provided with a plurality of connecting columns distributed in an annular manner and corresponding to the positioning through holes on the blade end, the positioning through holes through which the connecting columns pass, the outer end of the connecting column is provided with a locking cap for covering the end of the connecting column, and the outer end of the locking cap is hemispherical; a lead hole is provided in the middle of the cover plate, a first vibration sensor is provided inside the blade near the connection with the cover plate, and a second vibration sensor is provided on the cover plate.

[0006] As a preferred technical solution of the present invention, the inner end surface of the cover plate is provided with reinforcing ribs arranged in a horizontal and vertical staggered manner.

[0007] As an optimal technical solution of the present invention, a central control module connected to the first vibration sensor and the second vibration sensor is provided in the wind turbine hub. When the first vibration sensor and the second vibration sensor detect abnormal vibration, the central control module sends an abnormal operation signal.

[0008] As a preferred technical solution of the present invention, an arc-shaped pressure plate for pressing the flange on the blade is installed between every n connecting columns, and the bottom of the locking cap is welded to the arc-shaped pressure plate.

[0009] As a preferred technical solution of the present invention, the arc-shaped pressure plate is made of high-strength material.

[0010] The beneficial effects of the utility model are:

[0011] This type of wind turbine blade locking fixture is convenient for blade rotation when adjusting the blade inclination by setting a specific wind turbine bearing, wherein an annular tube is provided at the inner end of the inner bearing sleeve, and an inner gear ring is provided on the annular tube. The wind turbine hub is provided with a transmission gear to engage with the inner gear ring, so as to facilitate the rotation of the inner bearing sleeve to adjust the blade rotation, and the blade and the cover plate are locked by threaded installation of the locking cap, and a lead hole is provided in the middle of the cover plate, and a first vibration sensor is provided inside the blade near the connection with the cover plate, and a second vibration sensor is provided on the cover plate to detect the vibration of the blade to avoid some of the bolts from loosening, which causes the blade connection stability to deteriorate, and the blade is prone to fall off in subsequent work, causing a wind turbine accident. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0013] Figure 1 This is a structural diagram of a blade locking tool for wind power generation in the utility model;

[0014] Figure 2 This is a structural schematic diagram of an annular tube of a blade locking fixture for wind power generation according to the present invention;

[0015] Figure 3 This is a schematic diagram of the installation of a curved pressure plate of a blade locking tool for wind power generation in the utility model;

[0016] Figure 4 The utility model is a structural schematic diagram of an arc-shaped pressing plate of a blade locking tool for wind power.

[0017] In the figure: 1. Wind turbine bearing; 2. Outer bearing sleeve; 3. Inner bearing sleeve; 4. Positioning flange; 5. Annular tube; 6. Inner gear ring; 7. Cover plate; 8. Connecting column; 11. Locking cap; 13. Lead hole; 14. First vibration sensor; 15. Second vibration sensor; 16. Arc pressure plate. DETAILED DESCRIPTION

[0018] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0019] Example 1: Figure 1-4 As shown, the utility model is a blade locking tool for wind power, comprising a wind power bearing 1, and the wind power bearing 1 comprises an outer bearing sleeve 2 and an inner bearing sleeve 3, the outer bearing sleeve 2 is provided with a positioning flange 4 fixed to the wind power hub, the inner end of the inner bearing sleeve 3 is provided with an annular tube 5, the annular tube 5 is provided with an inner gear ring 6, the outer end of the inner bearing sleeve 3 is provided with a cover plate 7, and the cover plate 7 is provided with a plurality of connecting columns 8 distributed in an annular manner and corresponding to the positioning through holes on the blade end, the positioning through holes through which the connecting columns 8 pass, the outer end of the connecting column 8 is provided with a locking cap 11 for covering the end of the connecting column 8, and the outer end of the locking cap 11 is hemispherical, the middle part of the cover plate 7 is provided with a lead hole 13, the inside of the blade is provided with a first vibration sensor 14 near the connection with the cover plate 7, and the cover plate 7 is provided with a second vibration sensor Sensor 15; by setting a specific wind turbine bearing 1, it is convenient for the blade to rotate when the inclination angle of the blade is adjusted, wherein an annular tube 5 is provided at the inner end of the inner bearing sleeve 3, and an inner gear ring 6 is provided on the annular tube 5. The wind turbine hub is provided with a transmission gear to engage with the inner gear ring, so that it is convenient to drive the inner bearing sleeve to rotate to adjust the blade rotation, and the blade and the cover plate are locked by threaded installation of the locking cap, and the locking cap is prevented from falling off by setting a locking cap 11 to avoid loosening. A lead hole 13 is provided in the middle of the plate 7, and a first vibration sensor 14 is provided inside the blade near the connection with the cover plate 7, and a second vibration sensor 15 is provided on the cover plate 7 to detect the vibration of the blade to avoid some of the bolts from loosening, which causes the blade connection stability to deteriorate, and the blade is prone to fall off in subsequent work, causing a wind turbine accident.

[0020] The inner end surface of the cover plate 7 is provided with reinforcing ribs arranged in a horizontal and vertical staggered manner, which increases the strength of the connection surface with the blades and makes it less likely to deform and crack.

[0021] The wind turbine hub is provided with a central control module connected to the first vibration sensor 14 and the second vibration sensor 15. When the first vibration sensor 14 and the second vibration sensor 15 detect abnormal vibration, the central control module sends an abnormal working signal. In this way, the event of abnormal vibration of the blade caused by loose fixation can be detected, and timely maintenance can be carried out to avoid accidents.

[0022] An arc-shaped pressure plate 16 is installed between each of the n connecting columns 8 to press against the flange on the blade. The arc-shaped pressure plate 16 is made of high-strength material, and the bottom of the locking cap 11 is welded to the arc-shaped pressure plate 16. This forms the n connecting columns 8 into a fixed whole. If one locking cap fails to lock, the arc-shaped pressure plate will lock the other locking caps in the same area to a certain extent, preventing the blade connection from loosening and increasing overall stability.

[0023] Working principle: By setting a specific wind turbine bearing 1, it is convenient for the blade to rotate when the inclination angle of the blade is adjusted, wherein an annular tube 5 is provided at the inner end of the inner bearing sleeve 3, and an inner gear ring 6 is provided on the annular tube 5. The wind turbine hub is provided with a transmission gear to engage with the inner gear ring, so that it is convenient to drive the inner bearing sleeve to rotate to adjust the blade rotation, and the blade and the cover plate are locked by threaded installation of the locking cap, and the locking cap is prevented from falling off by setting a locking cap 11 to avoid loosening. A lead hole 13 is provided in the middle of the plate 7, and a first vibration sensor 14 is provided inside the blade near the connection with the cover plate 7, and a second vibration sensor 15 is provided on the cover plate 7 to detect the vibration of the blade to avoid some of the bolts from loosening, which causes the blade connection stability to deteriorate, and the blade is prone to fall off in subsequent work, causing a wind turbine accident.

[0024] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A blade locking tool for wind power, characterized in that: The invention comprises a wind turbine bearing (1), wherein the wind turbine bearing (1) comprises an outer bearing sleeve (2) and an inner bearing sleeve (3), the outer bearing sleeve (2) is provided with a positioning flange (4) fixed to the wind turbine hub, the inner end of the inner bearing sleeve (3) is provided with an annular tube (5), the annular tube (5) is provided with an inner gear ring (6), the outer end of the inner bearing sleeve (3) is provided with a cover plate (7), and the cover plate (7) is provided with a plurality of connecting columns (8) distributed in an annular manner and corresponding to the positioning through holes on the ends of the blades, the connecting columns (8) pass through the positioning through holes, the outer end of the connecting column (8) is provided with a locking cap (11) for covering the end of the connecting column (8), and the outer end of the locking cap (11) is hemispherical; a lead hole (13) is provided in the middle of the cover plate (7), a first vibration sensor (14) is provided inside the blade near the connection with the cover plate (7), and a second vibration sensor (15) is provided on the cover plate (7).

2. A wind turbine blade locking fixture according to claim 1, characterized in that: The inner end surface of the cover plate (7) is provided with reinforcing ribs arranged in a horizontal and vertical staggered manner.

3. The wind turbine blade locking tool according to claim 1, characterized in that: A central control module connected to a first vibration sensor (14) and a second vibration sensor (15) is provided in the wind turbine hub. When the first vibration sensor (14) and the second vibration sensor (15) detect abnormal vibration, the central control module sends an abnormal operation signal.

4. A wind turbine blade locking fixture according to claim 3, characterized in that: An arc-shaped pressing plate (16) for pressing the flange on the blade is installed between every n connecting columns (8), and the bottom of the locking cap (11) is welded to the arc-shaped pressing plate (16).

5. The wind turbine blade locking fixture according to claim 4, characterized in that: The arc-shaped pressing plate (16) is made of high-strength material.

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