Blade adjusting mechanism and wind power blade self-adaptive adjusting device

Abstract

The invention relates to the technical field of wind power blades, in particular to a blade adjusting mechanism and a wind power blade self-adaptive adjusting device. The auxiliary fan blade adjusting assembly is arranged on the main fan blade; the driving assembly is arranged on the connecting part and is in transmission connection with the auxiliary fan blade adjusting assembly; the driving assembly controls the auxiliary fan blade adjusting assembly to be unfolded or folded from the main fan blade. The self-adaptive wind power blade has the beneficial effects that self-adaptive adjustment of the wind power blade is achieved by driving the auxiliary fan blades to be unfolded or stored in the hidden grooves of the main fan blades, and compared with a traditional wind power blade of a fixed structure, the problem that the wind energy conversion efficiency is low due to wind speed changes is effectively solved. The unfolding angle of the auxiliary fan blade can be accurately adjusted according to the wind speed, and the wind receiving area and the blade stress are optimized, so that the wind receiving efficiency is improved at the low wind speed, the resistance is reduced at the high wind speed, and the wind energy conversion efficiency and the equipment stability are remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of wind turbine blade technology, and in particular to a blade adjustment mechanism and a wind turbine blade adaptive adjustment device. Background Technology

[0002] Wind power, as a clean and renewable energy technology, converts the kinetic energy of wind into electrical energy and is widely used in the adjustment of the global energy structure. Wind turbine blades are the core component of wind power generation equipment, and their performance directly affects the wind energy conversion efficiency.

[0003] In existing technologies, the structure and number of wind turbine blades are usually fixed after installation, making it impossible to adaptively adjust according to real-time wind speed changes. This fixed design makes it difficult for wind turbine blades to operate optimally under different wind speed conditions, especially in low or high wind speed environments, where wind energy conversion efficiency is low and the blades lack flexibility in use. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is that wind turbine blades are difficult to optimize operation under different wind speed conditions.

[0005] The above-mentioned technical problems are solved by the following technical solution: The present invention proposes a blade adjustment mechanism, which includes a main wind blade disposed on a connecting part; a secondary wind blade adjustment assembly disposed on the main wind blade; a drive assembly disposed on the connecting part and connected to the secondary wind blade adjustment assembly in a transmission manner; wherein, the drive assembly controls the secondary wind blade adjustment assembly to unfold or retract from the main wind blade.

[0006] In a preferred embodiment of the blade adjustment mechanism of the present invention: the auxiliary wind blade adjustment assembly includes a connecting frame disposed on the connecting part, and auxiliary wind blades are uniformly fixedly connected on the connecting frame.

[0007] In a preferred embodiment of the blade adjustment mechanism of the present invention: a hidden groove is provided on one side of the main blade, and the secondary blade is located in the hidden groove.

[0008] In a preferred embodiment of the blade adjustment mechanism of the present invention: the drive assembly includes a sector plate, on which a self-locking servo motor is fixedly connected.

[0009] In a preferred embodiment of the blade adjustment mechanism of the present invention: a drive shaft is fixedly connected to the output end of a self-locking servo motor, a drive gear is fixedly sleeved on the drive shaft, and a driven gear meshing with the drive gear is fixedly connected to the connecting frame.

[0010] In a preferred embodiment of the blade adjustment mechanism of the present invention: the connecting part includes a mounting cylinder, a rotating shaft is rotatably inserted into the mounting cylinder, a connecting part is fixedly connected to one end of the rotating shaft, a sleeve is fixedly sleeved on the connecting part, a main fan blade is uniformly fixedly connected to the outer wall of the sleeve, a positioning strip is fixedly attached to the main fan blade, and a hidden groove is located on the side of the main fan blade near the mounting cylinder.

[0011] In a preferred embodiment of the blade adjustment mechanism of the present invention: a PLC controller is fixedly connected to the fan-shaped plate, an anemometer is fixedly connected to the PLC controller, the PLC controller is connected to a self-locking servo motor, a battery compartment is fixedly connected to the fan-shaped plate, and the self-locking servo motor is connected to the battery compartment; an arc-shaped slide rail is fixedly connected to the side of the fan-shaped plate near the mounting cylinder, an annular groove is opened on the side of the mounting cylinder near the fan-shaped plate, the arc-shaped slide rail is located in the annular groove, and a universal ball bearing is rotatably connected to the side of the arc-shaped slide rail near the annular groove; a reinforcing plate is fixedly connected between the fan-shaped plate and the anemometer, and an air guide groove corresponding to the anemometer is opened on the side of the fan-shaped plate near the anemometer.

[0012] In a preferred embodiment of the blade adjustment mechanism of the present invention: the connecting frame includes a rotating sleeve and a rotating cylinder disposed on the connecting part. The inner wall of the rotating cylinder is rotatably connected to the connecting part through a roller bearing. The driven gear is fixedly sleeved on the rotating cylinder. Connecting rods are uniformly fixedly connected to the outer wall of the rotating cylinder. A connecting ring plate is fixedly connected to the end of the connecting rod away from the rotating cylinder. The auxiliary fan blades are uniformly fixedly connected to the connecting ring plate.

[0013] In a preferred embodiment of the blade adjustment mechanism of the present invention: threaded holes are provided on both the auxiliary fan blade and the connecting ring plate, and locking bolts are threaded into the threaded holes. The locking bolts include studs threaded into the threaded holes, and a hexagonal nail head is fixedly connected to one end of the studs; a reinforcing ring plate is fixedly connected between the main fan blades, and a first threaded hole is provided on the reinforcing ring plate. A second threaded hole matching the first threaded hole is provided on the main fan blade. Hexagonal bolts are threaded into the first threaded hole and the second threaded hole, and hexagonal grooves are provided on the nail heads of the hexagonal bolts.

[0014] To solve the above-mentioned technical problems, the present invention also provides the following technical solution: a wind turbine blade adaptive adjustment device, including a blade adjustment mechanism, and a reinforcing ring plate with a reinforcing member fixedly connected to the side of the main wind turbine blade; the main wind turbine blade is located between the reinforcing members; a guide groove is provided on the side of the reinforcing ring plate away from the main wind turbine blade; an exhaust hole is provided at the bottom of the guide groove; and a drain outlet communicating with the guide groove is provided on the outer edge of the reinforcing ring plate.

[0015] The beneficial effects of this invention are as follows: by driving the secondary wind turbine blades to deploy or retract into the hidden slots of the main wind turbine blades, adaptive adjustment of the wind turbine blades is achieved. Compared with traditional fixed-structure wind turbine blades, this effectively solves the problem of low wind energy conversion efficiency caused by wind speed changes. The deployment angle of the secondary wind turbine blades can be precisely adjusted according to the wind speed, optimizing the wind-receiving area and blade stress, thereby increasing wind-receiving efficiency at low wind speeds and reducing resistance at high wind speeds, significantly improving wind energy conversion efficiency and equipment stability.

[0016] In addition, the reinforcing ring plate and reinforcement components enhance the structural strength of the main blade, while the design of the guide channel and drainage outlet effectively reduces airflow and water flow resistance, ensuring stable operation of the blades in severe weather and extending their service life. This makes them particularly suitable for complex environments such as offshore wind power, improving the environmental adaptability and operational reliability of wind power equipment. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments of the present invention will be briefly described below. Obviously, the drawings described below only relate to some embodiments of the present invention and are not intended to limit the present invention. Wherein:

[0018] Figure 1 The overall structure diagram of the blade adjustment mechanism is shown;

[0019] Figure 2 A perspective view of the auxiliary blade adjustment assembly of the blade adjustment mechanism is shown;

[0020] Figure 3 A schematic diagram of the connection structure between the auxiliary blade adjustment assembly and the main blade of the blade adjustment mechanism is shown.

[0021] Figure 4 A schematic diagram of the connection structure between the main blade and the sleeve of the blade adjustment mechanism is shown.

[0022] Figure 5 A schematic diagram of the connecting ring plate structure of the blade adjustment mechanism is shown;

[0023] Figure 6 A schematic diagram of the arc-shaped slide rail structure of the blade adjustment mechanism is shown;

[0024] Figure 7 A schematic diagram of the reinforcing ring plate structure of the blade adjustment mechanism is shown;

[0025] Figure 8 A schematic diagram of the guide groove structure of the blade adjustment mechanism is shown. Detailed Implementation

[0026] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0027] The terminology used in this invention is that which is currently widely used in the art in consideration of the function of the invention; however, these terms may vary according to the intent of those skilled in the art, precedent, or new technology in the art. Furthermore, specific terms may be chosen by the applicant, and in such cases, their detailed meanings will be described in the detailed description of the invention. Therefore, the terms used in this specification should not be construed as simple names, but rather based on their meanings and the overall description of the invention.

[0028] Reference Figure 1-5 This embodiment provides a blade adjustment mechanism, including a main blade 2 disposed on a connecting part 1; an auxiliary blade adjustment assembly 3 disposed on the main blade 2; and a drive assembly 4 disposed on the connecting part 1 and connected to the auxiliary blade adjustment assembly 3 in a transmission manner; wherein the drive assembly 4 controls the auxiliary blade adjustment assembly 3 to unfold or retract from the main blade 2.

[0029] In this embodiment, the main wind blade 2 is fixed to the connecting part 1 and is a component of the wind power generation device. It is in direct contact with the airflow, capturing the kinetic energy of the wind and converting it into mechanical energy. There are typically three main wind blades 2, evenly distributed around the connecting part 1 to ensure rotational balance and stability.

[0030] The auxiliary blade adjustment component 3 is the part of this device that enables adaptive adjustment. It is installed on the main blade 2 and can be expanded or retracted at a specific position of the main blade 2, such as within the hidden slot 21.

[0031] The secondary blade 33 is connected to the main blade 2 via a specific mechanical structure. Under the control of the drive assembly 4, it can rotate out of the concealed slot 21 of the main blade 2 to unfold or retract into the concealed position. When unfolded, the secondary blade 33 increases the effective wind-receiving area of ​​the blade, which is suitable for improving wind energy capture efficiency in low wind speed environments. When retracted, the secondary blade 33 is hidden inside the main blade 2, reducing the wind-receiving area, which is suitable for avoiding blade overload or damage in high wind speed environments.

[0032] For example, when the wind speed is low (e.g., 5 m / s), the secondary blade 33 can be fully deployed to increase the wind-receiving area of ​​the blades, enabling the wind power generation device to operate efficiently even at low wind speeds; when the wind speed is high (e.g., 10 m / s), the secondary blade 33 can be completely retracted into the concealed slot 21, relying solely on the main blade 2 to work, reducing wind resistance and mechanical load, and ensuring the safety and stability of the device.

[0033] "Expanding or retracting" refers to the relative movement of the secondary wind vane 33 relative to the main wind vane 2. Specifically, expanding means that the secondary wind vane 33 rotates or slides out from the concealed slot 21 of the main wind vane 2, increasing the wind-receiving area; retracting means that the secondary wind vane 33 retracts into the concealed slot 21, becoming one with the main wind vane 2, reducing the wind-receiving area. This action is achieved through mechanical transmission, ensuring smooth and controllable operation.

[0034] refer to Figure 2-3The auxiliary fan blade adjustment assembly 3 includes a connecting frame 32 mounted on the connecting part 1, with auxiliary fan blades 33 evenly fixedly connected to the connecting frame 32. A hidden slot 21 is provided on one side of the main fan blade 2, and the auxiliary fan blades 33 are located in the hidden slot 21. The drive assembly 4 includes a fan-shaped plate 41, with a self-locking servo motor 42 fixedly connected to the fan-shaped plate 41. A drive shaft 43 is fixedly connected to the output end of the self-locking servo motor 42, and a drive gear 44 is fixedly sleeved on the drive shaft 43. A driven gear 45 that meshes with the drive gear 44 is fixedly connected to the connecting frame 32.

[0035] In this embodiment, the auxiliary blade adjustment assembly 3 is the part that realizes the adaptive adjustment of the wind turbine blades. Its main structure includes a connecting part 1, a connecting frame 32, and auxiliary blades 33. The connecting part 1, as the rotating part of the entire device, is fixedly connected to the rotating shaft 12 and is used to transmit rotational power. The connecting frame 32 is rotatably sleeved on the connecting part 1, and its structural design allows it to rotate flexibly around the connecting part 1. Auxiliary blades 33 are uniformly fixedly connected to the connecting frame 32. These auxiliary blades 33 are components that realize the dynamic adjustment of the blade area.

[0036] Specifically, the secondary blade 33 is designed to adjust its angle or unfold / retract according to changes in wind speed. A concealed slot 21 is provided on the side of the main blade 2 near the mounting cylinder 11, providing storage space for the secondary blade 33. For example, when the wind speed is low, the secondary blade 33 can be completely retracted into the concealed slot 21 of the main blade 2, reducing the blade's wind-receiving area and thus avoiding low rotational efficiency due to insufficient wind speed. When the wind speed is high, the secondary blade 33 can rotate out of the concealed slot 21, increasing the effective wind-receiving area of ​​the blade and improving wind energy capture efficiency. This design, by dynamically adjusting the blade area to adapt to different wind speed conditions, demonstrates the adaptive characteristics of the device.

[0037] The drive assembly 4 is the power source for adjusting the auxiliary fan blades 33. Its main structure includes a sector plate 41, a self-locking servo motor 42, a drive shaft 43, a drive gear 44, and a driven gear 45. The sector plate 41 is fixedly connected to the rotating shaft 12, serving as a support structure for the drive assembly 4 and used to install other key components. The self-locking servo motor 42 is fixed to the sector plate 41, and its output end is connected to the drive shaft 43. The drive gear 44 is fixedly sleeved on the drive shaft 43. The driven gear 45, which meshes with the drive gear 44, is fixedly connected to the connecting frame 32, forming a gear transmission system.

[0038] The self-locking servo motor 42 is a component of the drive assembly 4. Its "self-locking" characteristic means that it can lock its current position when it stops operating, preventing the auxiliary blade 33 from rotating unexpectedly due to external forces (such as wind) and ensuring the stability of the adjustment angle. For example, when it is necessary to adjust the auxiliary blade 33 to a specific angle, the self-locking servo motor 42 starts, driving the drive shaft 43 to rotate. The drive shaft 43 drives the driven gear 45 to rotate through the drive gear 44, and the driven gear 45 then drives the connecting frame 32 to rotate, thereby realizing the angle adjustment or unfolding / retracting action of the auxiliary blade 33. This precise control method allows the unfolding angle of the auxiliary blade 33 to be finely adjusted according to the wind speed. For example, at a wind speed of 5 m / s, the auxiliary blade 33 may only unfold to 30 degrees, while at a wind speed of 10 m / s, the auxiliary blade 33 may fully unfold to 90 degrees to maximize wind energy capture.

[0039] The adaptive adjustment relies on the controllability of the angle of the auxiliary fan blade 33 and the precision of the gear transmission system. The meshing design of the driving gear 44 and the driven gear 45 ensures the high efficiency and stability of power transmission, while the precise control of the self-locking servo motor 42 guarantees the accuracy of the angle adjustment of the auxiliary fan blade 33. For example, assuming that the auxiliary fan blade 33 needs to be adjusted from a fully retracted state of 0 degrees to a semi-expanded state of 45 degrees, the self-locking servo motor 42 can precisely transmit the rotation angle of the driving gear 44 to the driven gear 45 by controlling the number of rotations, thereby achieving precise deflection of the auxiliary fan blade 33.

[0040] The technical solution mentions that the secondary blades 33 are "uniformly and fixedly connected" to the connecting frame 32. Here, "uniformly" means that the distribution of the secondary blades 33 on the connecting frame 32 is symmetrical and equally spaced to ensure the balance of the blades when rotating. For example, if the connecting frame 32 is a circular structure, the three secondary blades 33 will be evenly distributed on the connecting frame 32 at 120-degree angle intervals to avoid vibration or structural stress concentration caused by imbalance.

[0041] The hidden groove 21 refers to a specially designed groove on the main fan blade 2, whose size and shape match the secondary fan blade 33, allowing the secondary fan blade 33 to be completely embedded in the main fan blade 2 with a flush surface when retracted. For example, assuming the thickness of the main fan blade 2 is 10 cm, the hidden groove 21 may be a rectangular groove with a depth of 8 cm. After the secondary fan blade 33 is retracted, it will not protrude from the surface of the main fan blade 2, thereby reducing air resistance.

[0042] Through the aforementioned structure and principle, this device can dynamically adjust the deployment angle or retracted state of the auxiliary blade 33 according to the actual wind speed, thereby achieving adaptive adjustment of the wind turbine blades. This design significantly improves the flexibility of wind turbine blades under different wind speed conditions. For example, in coastal areas, wind speeds may change from 5 m / s to 15 m / s in a short period of time. Traditional fixed blades may become inefficient due to their inability to adapt, while this device, through the dynamic adjustment of the auxiliary blade 33, can maintain a high wind energy conversion efficiency at all times. In addition, the cooperation between gear transmission and self-locking servo motor 42 ensures the accuracy and stability of the adjustment process, avoiding mechanical damage caused by sudden changes in wind speed.

[0043] The connecting part 1 includes a mounting cylinder 11, a rotating shaft 12 is rotatably inserted into the mounting cylinder 11, one end of the rotating shaft 12 is fixedly connected to the connecting part 1, a sleeve 34 is fixedly sleeved on the connecting part 1, and a main fan blade 2 is evenly fixedly connected to the outer wall of the sleeve 34. A positioning strip 26 is fixed on the main fan blade 2, and a hidden groove 21 is located on the side of the main fan blade 2 near the mounting cylinder 11. A PLC controller 411 is fixedly connected to the sector plate 41, and an anemometer 412 is fixedly connected to the PLC controller 411. The PLC controller 411 is connected to a self-locking servo motor 42. A battery compartment 413 is fixedly connected to the sector plate 41, and the self-locking servo motor 42 is connected to the battery compartment 413. An arc-shaped slide rail 414 is fixedly connected to the side of the sector plate 41 near the mounting cylinder 11. An annular groove 415 is opened on the side of the mounting cylinder 11 near the sector plate 41. The arc-shaped slide rail 414 is located in the annular groove 415. A universal ball bearing 416 is rotatably connected to the side of the arc-shaped slide rail 414 near the annular groove 415. A reinforcing plate 417 is fixedly connected between the sector plate 41 and the anemometer 412. An air guide groove 418 corresponding to the anemometer 412 is opened on the side of the sector plate 41 near the anemometer 412.

[0044] In this embodiment, the mounting cylinder 11 is the basic support structure of the device, and a rotating shaft 12 is rotatably inserted inside via bearings. The rotating shaft 12 can rotate freely within the mounting cylinder 11, and one end is fixedly connected to a connecting part 1. A sleeve 34 is fixedly fitted onto the connecting part 1, and main wind blades 2 are uniformly fixedly connected to the outer wall of the sleeve 34. Positioning strips 26 are fixedly attached to the main wind blades 2. A hidden groove 21 is provided on the side of the main wind blades 2 near the mounting cylinder 11 to accommodate auxiliary wind blades 33. When airflow blows over the main wind blades 2, the main wind blades 2 drive the sleeve 34 to rotate, and the sleeve 34 drives the rotating shaft 12 to rotate through the connecting part 1, thereby converting wind energy into mechanical energy, and then into electrical energy through a power generation device. For example, in an offshore wind farm, the main wind blades 2 are driven by the sea breeze, driving the rotating shaft 12 to rotate, providing power to the generator.

[0045] A sector-shaped plate 41 is fixed to a rotating shaft 12. A PLC controller 411 is fixedly connected to the sector-shaped plate 41, and an anemometer 412 is installed on the PLC controller 411 to monitor wind speed changes around the wind turbine blades in real time. For example, when the wind speed increases from 5 m / s to 10 m / s, the anemometer 412 will detect this change and transmit the signal to the PLC controller 411. The PLC controller 411 analyzes the wind speed data according to a preset program and sends instructions to the self-locking servo motor 42. The self-locking servo motor 42 is connected to the battery compartment 413 on the sector-shaped plate 41, which provides power to ensure stable operation of the motor. The output of the self-locking servo motor 42 drives the auxiliary blade 33 to adjust its angle through a drive shaft 43 and a gear transmission system, thereby realizing the structural adjustment of the wind turbine blades. For example, under high wind speed conditions, the auxiliary blade 33 may be partially deployed to increase the wind-receiving area, while under low wind speed conditions, the auxiliary blade 33 may be completely retracted into the hidden slot 21 to reduce resistance.

[0046] An arc-shaped slide rail 414 is fixedly connected to the side of the sector plate 41 near the mounting cylinder 11, while an annular groove 415 is formed on the side of the mounting cylinder 11 near the sector plate 41. The arc-shaped slide rail 414 is embedded in the annular groove 415, forming a limiting and guiding structure. This design ensures that the sector plate 41 remains stable during rotation, avoiding deviation caused by wind or other external forces. For example, when the main fan blade 2 rotates at high speed, the arc-shaped slide rail 414 slides within the annular groove 415, limiting the swaying of the sector plate 41, thereby ensuring the stable operation of the PLC controller 411 and the anemometer 412. In addition, a universal ball bearing 416 is rotatably connected to the side of the arc-shaped slide rail 414 near the bottom of the annular groove 415. The universal ball bearing 416 can reduce the frictional resistance between the arc-shaped slide rail 414 and the annular groove 415, making the slide rail slide more smoothly within the groove. For example, two universal balls 416 are evenly distributed at the bottom of the arc-shaped slide rail 414, similar to the function of a ball bearing, reducing resistance during sliding and improving the operating efficiency of the device.

[0047] A reinforcing plate 417 is fixedly connected between the sector plate 41 and the anemometer 412 to enhance the stability of the anemometer 412. The reinforcing plate 417 is connected to the sector plate 41 and the anemometer 412 by bolts or welding to ensure that the anemometer will not loosen during high-speed rotation or strong winds. For example, in strong winds, the reinforcing plate 417 effectively prevents the anemometer 412 from shifting due to vibration, thus ensuring the accuracy of wind speed measurement. Furthermore, an air guide groove 418 is provided on the side of the sector plate 41 closest to the anemometer 412, corresponding to the position of the anemometer 412. The function of the air guide groove 418 is to guide the airflow smoothly through the anemometer 412, avoiding turbulence near the anemometer and affecting measurement accuracy. For example, the air guide groove 418 can be designed as an arc-shaped groove, guiding the airflow from one side of the anemometer to the other, ensuring smooth airflow and improving the sensitivity and reliability of the anemometer.

[0048] Through the aforementioned structural design, this device can automatically adjust the structure of the wind turbine blades according to real-time wind speed changes, significantly improving the wind energy conversion efficiency of the blades under different wind speed environments. For example, in coastal areas, wind speed may fluctuate significantly due to weather changes. This device can dynamically optimize the wind-receiving characteristics of the blades by deploying or retracting the auxiliary wind vanes 33, thereby improving power generation efficiency. Simultaneously, the designs of the arc-shaped slide rail 414, the universal ball bearing 416, and the air guide groove 418 improve the operational stability and measurement accuracy of the device, enhancing the adaptability and service life of the wind turbine blades.

[0049] refer to Figure 3-8 The connecting frame 32 includes a rotating sleeve and a rotating cylinder 322 disposed on the connecting part 1. The inner wall of the rotating cylinder 322 is rotatably connected to the connecting part 1 through a roller bearing. The driven gear 45 is fixedly sleeved on the rotating cylinder 322. The outer wall of the rotating cylinder 322 is uniformly fixedly connected with connecting rods 323. The end of the connecting rod 323 away from the rotating cylinder 322 is fixedly connected with a connecting ring plate 324. The auxiliary fan blades 33 are uniformly fixedly connected to the connecting ring plate 324. Both the auxiliary fan blade 33 and the connecting ring plate 324 are provided with threaded holes 325. A locking bolt 326 is inserted into the threaded hole 325. The locking bolt 326 includes a stud 327 threaded into the threaded hole 325. One end of the stud 327 is fixedly connected to a hexagonal nail head. A reinforcing ring plate 22 is fixedly connected between the main fan blades 2. A first threaded hole is provided on the reinforcing ring plate 22. A second threaded hole matching the first threaded hole is provided on the main fan blade 2. Hexagonal bolts 24 are threaded into the first threaded hole and the second threaded hole. A hexagonal groove is provided on the nail head of the hexagonal bolt 24.

[0050] In this embodiment, the rotating cylinder 322 is sleeved on the connecting part 1, and its inner wall is rotatably connected to the connecting part 1 through a roller bearing. The function of the roller bearing is to reduce the friction between the rotating cylinder 322 and the connecting part 1, making the rotation smoother.

[0051] The driven gear 45 is fixedly sleeved on the outer wall of the rotating cylinder 322 and meshes with the driving gear 44 in the drive system. The driving gear 44 is driven to rotate by the self-locking servo motor 42, which in turn drives the driven gear 45, thereby causing the rotating cylinder 322 to rotate.

[0052] Multiple connecting rods 323 are evenly fixedly connected to the outer wall of the rotating cylinder 322, and the other end of these connecting rods 323 is fixedly connected to a connecting ring plate 324. The connecting ring plate 324 is an annular structure, and the auxiliary fan blades 33 are evenly fixed to the outer edge of the connecting ring plate 324. The number of connecting rods 323 can be designed according to actual needs. For example, assuming there are 6 connecting rods 323, evenly distributed on the outer wall of the rotating cylinder 322, each connecting rod 323 is welded or bolted to the connecting ring plate 324 to form a stable support frame. This design ensures that the auxiliary fan blades 33 will not deform or loosen under high-speed rotation or strong wind conditions.

[0053] Both the secondary fan blade 33 and the connecting ring plate 324 are provided with threaded holes 325. These threaded holes 325 are positioned correspondingly to ensure that the secondary fan blade 33 can be accurately aligned and fixed. For example, suppose each secondary fan blade 33 has 4 threaded holes 325, located at the four corners of the secondary fan blade 33, which are aligned with the corresponding threaded holes 325 on the connecting ring plate 324.

[0054] The locking bolt 326 consists of a stud 327 and a hexagonal nut. The stud 327 is threaded into the threaded hole 325, securely fixing the auxiliary fan blade 33 to the connecting ring plate 324. The hexagonal nut facilitates tightening or loosening using tools such as a wrench. For example, during installation, a worker can use a hexagonal wrench to turn the hexagonal nut, screwing the stud 327 into the threaded hole 325 until the auxiliary fan blade 33 is fully engaged with the connecting ring plate 324. This fixing method is not only secure but also facilitates quick disassembly of the auxiliary fan blade 33 during maintenance. For example, when a damaged auxiliary fan blade 33 needs to be replaced, disassembly can be completed simply by loosening the locking bolt 326 without disassembling the entire connecting frame 32.

[0055] The reinforcing ring plate 22 is a ring structure that connects the three main fan blades 2, forming a whole. The reinforcing ring plate 22 has three first screw holes, and each main fan blade 2 has a corresponding second screw hole. The first and second screw holes are matched to ensure precise alignment between the reinforcing ring plate 22 and the main fan blades 2.

[0056] Hex bolts 24 are threaded into the first and second screw holes. The heads of the hex bolts 24 have hexagonal grooves. The hexagonal grooves facilitate tightening or loosening using an Allen wrench.

[0057] Reference Figure 4-8This embodiment provides a wind turbine blade adaptive adjustment device, including a reinforcing ring plate 22 with a reinforcing member 5 fixedly connected to the side of the main wind blade 2; the main wind blade 2 is located between the reinforcing members 5; a guide groove 51 is opened on the side of the reinforcing ring plate 22 away from the main wind blade 2; an exhaust hole 52 is opened at the bottom of the guide groove 51; and a drain outlet 53 communicating with the guide groove 51 is opened on the outer edge of the reinforcing ring plate 22.

[0058] In this embodiment, a plurality of reinforcing members 5 are fixedly connected to the side of the reinforcing ring plate 22 near the main wind turbine blade 2. These reinforcing members 5 are evenly distributed in the contact area between the reinforcing ring plate 22 and the main wind turbine blade 2. Specifically, each main wind turbine blade 2 is located between two reinforcing members 5. This arrangement allows the reinforcing members 5 to clamp and support the connection 1 between the main wind turbine blade 2 and the sleeve 34. For example, when wind force acts on the main wind turbine blade 2, the reinforcing members 5 disperse the wind load on the main wind turbine blade 2 through their physical contact surface, reducing stress concentration at the connection point of the main wind turbine blade 2, thereby improving the deformation resistance of the main wind turbine blade 2 and extending the service life of the wind turbine blade.

[0059] A guide groove 51 is provided on the side of the reinforcing ring plate 22 away from the main wind blade 2. The guide groove 51 is designed to guide airflow and water flow through the reinforcing ring plate 22, avoiding resistance to the rotation of the wind turbine blade caused by the installation of the reinforcing ring plate 22. The guide groove 51 is a groove structure extending along the surface of the reinforcing ring plate 22, and multiple exhaust holes 52 are provided at the bottom of the groove. These exhaust holes 52 allow the airflow passing through the guide groove 51 to be discharged downwards. For example, during the rotation of the wind turbine blade, the airflow may generate eddies or stagnation on the surface of the reinforcing ring plate 22. The presence of exhaust holes 52 allows the airflow to pass smoothly, reducing the impact of airflow resistance on the blade rotation efficiency. At the same time, multiple drain outlets 53 are provided on the outer edge of the reinforcing ring plate 22, which communicate with the guide groove 51. These drain outlets 53 are used to discharge liquids, such as rainwater or condensate, that may accumulate in the guide groove 51. The specific function of the drain outlet 53 is to guide the liquid from the guide channel 51 to the outer edge of the reinforcing ring plate 22 and discharge it through its communication with the guide channel 51, so as to avoid the liquid accumulation from adversely affecting the weight balance or rotation smoothness of the reinforcement.

[0060] Finally, it should be noted that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways as long as they do not depart from the scope of the present invention.

Claims

1. A blade adjusting mechanism, characterized in that: include, The main fan blade (2) is mounted on the connecting part (1); A secondary wind vane adjustment assembly (3) is provided on the main wind vane (2); A drive assembly (4) is provided on the connecting part (1) and is connected to the auxiliary fan blade adjustment assembly (3) in a transmission manner; The drive component (4) controls the auxiliary blade adjustment component (3) to expand or contract from the main blade (2).

2. The blade adjusting mechanism according to claim 1, characterized in that: The auxiliary fan blade adjustment assembly (3) includes a connecting frame (32) disposed on the connecting part (1), and auxiliary fan blades (33) are uniformly fixedly connected on the connecting frame (32).

3. The blade adjusting mechanism according to claim 2, characterized in that: The main fan blade (2) has a hidden groove (21) on one side, and the secondary fan blade (33) is located in the hidden groove (21).

4. The blade adjusting mechanism according to claim 3, characterized in that: The drive assembly (4) includes a sector plate (41), on which a self-locking servo motor (42) is fixedly connected.

5. The blade adjusting mechanism according to claim 4, characterized in that: The output end of the self-locking servo motor (42) is fixedly connected to a drive shaft (43), and a drive gear (44) is fixedly sleeved on the drive shaft (43). A driven gear (45) that meshes with the drive gear (44) is fixedly connected on the connecting frame (32).

6. The blade adjusting mechanism according to claim 5, characterized in that: The connecting part (1) includes a mounting cylinder (11), a rotating shaft (12) is rotatably inserted into the mounting cylinder (11), a sleeve (34) is fixedly sleeved on the connecting part (1), a main fan blade (2) is uniformly fixedly connected to the outer wall of the sleeve (34), and a positioning strip (26) is fixed on the main fan blade (2).

7. The blade adjusting mechanism according to claim 6, characterized in that: A PLC controller (411) is fixedly connected to the sector plate (41), a wind speed meter (412) is fixedly connected to the PLC controller (411), the PLC controller (411) is connected to a self-locking servo motor (42), a battery compartment (413) is fixedly connected to the sector plate (41), and the self-locking servo motor (42) is connected to the battery compartment (413). The fan-shaped plate (41) is fixedly connected to an arc-shaped slide rail (414) on the side near the mounting cylinder (11). The mounting cylinder (11) has an annular groove (415) on the side near the fan-shaped plate (41). The arc-shaped slide rail (414) is located in the annular groove (415). The arc-shaped slide rail (414) is rotatably connected to a universal ball bearing (416) on the side near the annular groove (415). A reinforcing plate (417) is fixedly connected between the fan-shaped plate (41) and the anemometer (412). The fan-shaped plate (41) has an air guide groove (418) corresponding to the anemometer (412) on the side close to the anemometer (412).

8. The blade adjusting mechanism according to claim 7, characterized in that: The connecting frame (32) includes a rotating sleeve and a rotating cylinder (322) disposed on the connecting part (1). The driven gear (45) is fixedly sleeved on the rotating cylinder (322). A connecting rod (323) is uniformly fixedly connected to the outer wall of the rotating cylinder (322). A connecting ring plate (324) is fixedly connected to the end of the connecting rod (323) away from the rotating cylinder (322). The auxiliary fan blade (33) is uniformly fixedly connected to the connecting ring plate (324).

9. The blade adjusting mechanism according to claim 2, characterized in that: Both the auxiliary fan blade (33) and the connecting ring plate (324) are provided with threaded holes (325). A locking bolt (326) is threaded into the threaded hole (325). The locking bolt (326) includes a stud (327) threaded into the threaded hole (325). One end of the stud (327) is fixedly connected with a hexagonal nail head. A reinforcing ring plate (22) is fixedly connected between the main fan blades (2). A first screw hole is provided on the reinforcing ring plate (22). A second screw hole matching the first screw hole is provided on the main fan blades (2). A hexagonal bolt (24) is threaded into the first screw hole and the second screw hole. A hexagonal groove is provided on the head of the hexagonal bolt (24).

10. A wind turbine blade adaptive adjustment device, characterized in that: Including the blade adjustment mechanism as described in claim 9, and, Reinforcement component (5); The reinforcing ring plate (22) has a guide groove (51) on the side away from the main fan blade (2); The guide channel (51) is provided with an exhaust hole (52), and the outer edge of the reinforcing ring plate (22) is provided with a drain outlet (53) that communicates with the guide channel (51).

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