Self-adaptive wind speed adjustment device for wind turbine generators

Abstract

A self-adaptive wind speed adjusting device for a wind power generator is provided that can adaptively adjust the wind-receiving area of ​​the blades based on the wind speed in the surrounding environment. [Solution] The self-adaptive wind speed adjustment device includes a blade assembly 1, an adjustment assembly 2, and a power generation assembly 3, the blade assembly includes a mounting seat 11 and multiple sets of blade mechanisms 12 arranged around the mounting seat, the blade mechanism includes a sleeve plate and an extension plate, the extension plate can slide along the height direction of the sleeve plate, the adjustment assembly includes a drive mechanism 21 and multiple sets of adjustment mechanisms 22, the adjustment mechanism includes a moving block and a connecting rod, one end of the connecting rod is hingedly connected to the moving block and the other end is hingedly connected to the side wall of the extension plate, the drive mechanism can control the moving block to move along a direction approaching or away from the blade mechanism, and the power generation assembly is connected to the mounting seat.

Description

[Technical Field]

[0001] The present invention relates to the technical field of wind power generation, and particularly to a self-adaptive wind speed adjusting device for a wind power generator. [Background technology]

[0002] Wind is a pollution-free energy source that is virtually inexhaustible. In areas where water and fuel are scarce and transportation is difficult, such as coastal islands, grassland pastures, mountainous areas, and plateaus, wind power generation is highly suitable and promising for the future, depending on the local conditions.

[0003] A wind turbine is a device that can convert wind energy into electrical energy, and Patent Document 1 discloses a wind turbine that has 4 to 24 blades, the blades and the generator shaft are connected by a seal head and a link assembly, the link assembly is perpendicular to the generator shaft, the blades are arranged in a cage shape with the generator shaft as the axis, and can receive wind in any direction. However, the blade area of ​​such a wind turbine is fixed, and the blade's swept area cannot be adaptively adjusted in response to changes in the weather, so its use is limited by weather conditions. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Chinese Utility Model No. 201011336 Summary of the Invention [Problem to be solved by the invention]

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the drawbacks of the prior art that wind turbines cannot adjust the swept area of ​​the blades and are limited by weather conditions during use, and to provide a self-adaptive wind speed adjusting device for a wind turbine that can adaptively adjust the swept area of ​​the blades based on the wind speed in the surrounding environment. [Means for solving the problem]

[0006] In order to solve the above problems, the present invention a blade assembly including a mounting seat and a plurality of sets of blade mechanisms, the plurality of sets of blade mechanisms being spaced apart along a circumferential direction of the mounting seat, the blade mechanisms including a sleeve plate and an extension plate, the extension plate being slidably connected to the sleeve plate, and the sliding direction being along a height direction of the sleeve plate; an adjustment assembly including a drive mechanism and a plurality of sets of adjustment mechanisms, the drive mechanism being provided on the mounting seat, and one set of the adjustment mechanism being provided between each set of the blade assemblies and the mounting seat, the adjustment mechanism including a moving block and a connecting rod, one end of the connecting rod being hingedly connected to the moving block and the other end being hingedly connected to a side wall of the extension plate, the power output end of the drive mechanism being connected to the moving block, thereby controlling the moving block to move along a direction approaching or moving away from the blade mechanism; The present invention provides a self-adaptive wind speed adjustment device for a wind power generator, the device including a power generation assembly including a power input shaft and a plurality of generators, one end of the power input shaft being connected to the bottom surface of the mounting seat and the other end being connected to the generators.

[0007] Optionally, the blade assembly includes four sets of the blade features, and an included angle between two adjacent sets of the blade features is 90°; Each set of the blade mechanism includes two of the extension plates, and the two extension plates are provided at both ends of the sleeve plate, respectively.

[0008] Optionally, sliding grooves are provided on both ends of the sleeve plate, and the extension plate includes a connection portion, an extension portion and a stopper portion, the extension portion is slidably connected to the sliding groove, one end of the extension portion is connected to the connection portion and the other end is connected to the stopper portion, and the connection portion is located outside the sliding groove and connected to the connecting rod, and the stopper portion is located within the sliding groove.

[0009] Optionally, said vane mechanism further comprises a support rod, said support rod having one end connected to said mounting seat and another end connected to an outer wall of said sleeve plate.

[0010] Optionally, a support block is provided on an outer wall of said sleeve plate, and the other end of said support rod is connected to said support block.

[0011] Optionally, said adjustment assembly comprises two sets of said adjustment mechanisms, each set of said adjustment mechanisms comprising two said connecting rods, each said connecting rod being connected to two said extension plates.

[0012] Optionally, the drive mechanism includes a drive member and two transmission shafts, the drive member is mounted on the mounting seat, a first bevel gear is mounted on the output end of the drive member, one end of the transmission shaft is mounted on a second bevel gear meshing with and connected to the first bevel gear, and the other end is connected to the sleeve plate, and the moving block is mounted on the transmission shaft and threadedly engaged with the transmission shaft.

[0013] Optionally, a drive gear is provided on an end of the power input shaft remote from the mounting seat, and four of the generators are provided around the power input shaft, and the drive gear meshes with driven gears of the generators.

[0014] Optionally, the self-adaptive wind speed adjustment device for the wind turbine generator further comprises a housing assembly, the housing assembly comprising an upper housing and a lower housing joined together, and the drive gear and the driven gear are provided within the housing assembly.

[0015] Optionally, said self-adaptive wind speed adjusting device for wind power generator further comprises a support base provided at the bottom of said housing assembly. [Effects of the Invention]

[0016] The present invention has the following advantages:

[0017] 1. The self-adaptive wind speed adjusting device for a wind turbine generator according to the present invention includes a blade assembly, an adjusting assembly, and a power generating assembly. The blade assembly includes a mounting base and multiple sets of blade mechanisms, which are spaced apart along the circumferential direction of the mounting base, and the mounting base is rotated when wind strikes the blade mechanisms. The blade mechanisms include a sleeve plate and an extension plate, which is slidably connected to the sleeve plate and slides along the height direction of the sleeve plate. The adjusting assembly includes a drive mechanism and multiple sets of adjusting mechanisms, which are mounted on the mounting base, and each set of blade mechanisms is connected to the mounting base with a set of adjusting mechanisms, i.e., each set of blade mechanisms is controlled by a set of adjusting mechanisms. The adjustment mechanism includes a moving block and a connecting rod, one end of which is hingedly connected to the moving block and the other end to the side wall of the extension plate, and the power output end of the drive mechanism is connected to the moving block, thereby controlling the moving block to move toward or away from the blade mechanism. The power generating assembly includes a power input shaft and a plurality of generators, one end of which is connected to the bottom of the mounting base and the other end is connected to the generators. When wind blows against the blade mechanism in a natural environment, it gradually drives the mounting base to rotate, which in turn drives the power input shaft to rotate, ultimately driving the generator to generate electricity. During use, the self-adaptive wind speed adjustment device for a wind turbine generator can adjust the wind-receiving area of ​​the blade mechanism based on changes in wind speed in the environment. When the wind speed is low, the drive mechanism drives the moving block to move toward the blade mechanism, and during this movement, the connecting rod drives the extension plate to extend from the sleeve plate, i.e., increasing the wind-receiving area of ​​the blade mechanism. When the wind speed is too high, the driving mechanism drives the moving block to move away from the blade mechanism, and during this movement, the connecting rod drives the extension plate to retract into the sleeve plate, i.e., reduce the swept area of ​​the blade mechanism. The adjustment assembly allows the blade mechanism to be controlled to change the swept area according to changes in environmental weather, so that it is suitable for operation in various wind forces without being limited by weather factors.

[0018] 2. In the self-adaptive wind speed adjusting device of the wind turbine generator of the present invention, the blade assembly includes two sets of blade mechanisms, and the angle between two adjacent sets of blade mechanisms is 90°, so that the wind is uniform, the mounting base can rotate continuously, and the generator can generate electricity continuously.

[0019] 3. In the self-adaptive wind speed adjusting device of the wind turbine generator of the present invention, each set of blade mechanism includes two extension plates, which are respectively provided on both ends of the sleeve plate. By providing two extension plates, the blade mechanism's wind-receiving area can be adjusted in a wider range, and its ability to adapt to the environment can be enhanced.

[0020] 4. In the self-adaptive wind speed adjusting device for a wind power generator according to the present invention, the sleeve plate has sliding grooves on both ends, the extension plate includes a connecting portion, an extension portion, and a stopper portion, the extension portion is slidably connected to the sliding groove, one end of the extension portion is connected to the connecting portion and the other end is connected to the stopper portion, the connecting portion is located outside the sliding groove and connected to the connecting rod, and the stopper portion is located inside the sliding groove. The stopper portion prevents the extension plate from slipping out of the sleeve plate. The connecting plate facilitates the connection between the extension plate and the connecting rod.

[0021] 5. In the self-adaptive wind speed adjusting device for a wind turbine generator according to the present invention, the drive mechanism includes a drive member and two transmission shafts, the drive member is mounted on the mounting seat and has a first bevel gear at the output end of the drive member, the transmission shaft has a second bevel gear at one end that meshes with and connects to the first bevel gear, and the other end is connected to the sleeve plate, and the moving block is mounted on the transmission shaft and is screwed to the transmission shaft.

[0022] 6. In the self-adaptive wind speed adjusting device for wind turbine generators according to the present invention, a drive gear is provided at the end of the power input shaft away from the mounting seat, and four generators are mounted around the power input shaft, with the drive gear meshing with the driven gears of the generators. The rotation of the power input shaft can simultaneously drive the operation of the four generators to generate electricity, resulting in a large amount of power generation.

[0023] 7. In the self-adaptive wind speed adjusting device for a wind turbine generator according to the present invention, the housing assembly includes an upper housing and a lower housing that are joined together, and the drive gear and the driven gear are installed in the housing assembly, which can protect the drive gear and the driven gear.

[0024] 8. The self-adaptive wind speed regulating device for a wind turbine generator according to the present invention further includes a support base installed at the bottom of the housing assembly, which facilitates installation of the self-adaptive wind speed regulating device for a wind turbine generator and improves the installation height of the self-adaptive wind speed regulating device for a wind turbine generator, thereby improving the wind protection effect. [Brief explanation of the drawings]

[0025] [Figure 1] 1 is a schematic diagram of a self-adaptive wind speed adjusting device for a wind power generator according to the present invention; [Figure 2] 1 is an exploded view of a self-adaptive wind speed adjusting device for a wind power generator according to the present invention; [Figure 3] 2 is a schematic diagram of the connection between the adjusting mechanism and the blade mechanism in the self-adaptive wind speed adjusting device of the wind power generator of the present invention; [Figure 4] 2 is a schematic diagram showing the internal structure of the blade mechanism of the self-adaptive wind speed adjusting device of the wind power generator of the present invention; DETAILED DESCRIPTION OF THE INVENTION

[0026] In order to more clearly describe the specific embodiments of the present invention or the technical solutions of the prior art, the drawings necessary for describing the specific embodiments or the prior art will be briefly described below. It is obvious that the drawings described below are some embodiments of the present invention, and those skilled in the art can derive other drawings based on these drawings without any creative work.

[0027] The technical solutions of the present invention will be described below clearly and completely with reference to the drawings, and it is obvious that the described embodiments are only some of the embodiments of the present invention, but not all of the embodiments, and all other embodiments that a person skilled in the art can obtain based on the embodiments of the present invention without any creative work fall within the scope of protection of the present invention.

[0028] In describing the present invention, orientations or positional relationships indicated by terms such as "center," "up," "down," "left," "right," "vertical," "horizontal," "inside," and "outside" are based on the orientations or positional relationships shown in the drawings, are for convenience and simplification of the description of the present invention, and do not indicate or imply that such devices or elements necessarily have a specific orientation or are constructed and operated in a specific orientation, and are not intended to limit the present invention. Furthermore, it should be understood that terms such as "first," "second," and "third" are used for descriptive purposes only and do not indicate or imply relative importance.

[0029] In the description of the present invention, unless otherwise clearly specified or limited, the terms "attach," "couple," and "connect" should be understood in a broad sense, and may refer to, for example, a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediate medium, or internal communication between two elements. Those skilled in the art can understand the specific meanings of the above terms in the present invention according to specific circumstances.

[0030] Furthermore, the technical features of the various embodiments of the present invention described below can be combined with each other unless they are inconsistent with each other.

[0031] As shown in Figures 1 and 2, this is a preferred embodiment of a self-adaptive wind speed regulating device for a wind turbine generator according to the present invention, which can generate power by utilizing wind in natural environments. The self-adaptive wind speed regulating device for a wind turbine generator includes a blade assembly 1, an adjustment assembly 2, and a power generation assembly 3. The blade assembly 1 includes a mounting base 11 and multiple sets of blade mechanisms 12, which are spaced apart along the circumferential direction of the mounting base 11. When wind strikes the blade mechanisms 12, they rotate, which in turn rotates the mounting base 11. The blade mechanisms 12 include a sleeve plate 121 and an extension plate 122. The extension plate 122 is slidably connected to the sleeve plate 121, sliding along the height direction of the sleeve plate 121, and the sliding of the extension plate 122 adjusts the wind-receiving area of ​​the blade mechanisms 12. The adjustment assembly 2 includes a drive mechanism 21 and multiple sets of adjustment mechanisms 22. The drive mechanism 21 is provided on the mounting seat 11, and a set of adjustment mechanisms 22 is provided between each set of blade mechanisms 12 and the mounting seat 11, i.e., each set of blade mechanisms 12 is controlled by a set of adjustment mechanisms 22. Specifically, the adjustment mechanism 22 includes a moving block 221 and a connecting rod 222, one end of the connecting rod 222 is hingedly connected to the moving block 221 and the other end is hingedly connected to a side wall of the extension plate 122, the power output end of the drive mechanism 21 is connected to the moving block 221, and the drive mechanism 21 can drive the moving block 221 to move along a direction toward or away from the blade mechanisms 12. The power generation assembly 3 includes a power input shaft 31 and multiple generators 32, and one end of the power input shaft 31 is connected to the bottom surface of the mounting seat 11 and the other end is connected to the generators 32. The power generation process of the self-adaptive wind speed regulator for a wind turbine is as follows: When wind in a natural environment blows against the blade mechanism 12, it gradually rotates the mounting base 11, which then synchronously rotates the power input shaft 31, ultimately driving the generator 32 via the power input shaft 31 to generate electricity and convert wind energy into electrical energy. During use, the self-adaptive wind speed regulator for a wind turbine can adjust the swept area of ​​the blade mechanism 12 based on changes in wind speed in the environment to adapt to weather conditions.When the wind speed is low, the driving mechanism 21 drives the moving block 221 to move closer to the blade mechanism 12, and during this movement, the connecting rod 222 drives the extension plate 122 to extend from the sleeve plate 121, i.e., increasing the wind-receiving area of ​​the blade mechanism 12. When the wind speed is too high, the driving mechanism 21 drives the moving block 221 to move away from the blade mechanism 12, and during this movement, the connecting rod 222 drives the extension plate 122 to retract into the sleeve plate 121, i.e., decreasing the wind-receiving area of ​​the blade mechanism 12. The adjustment assembly 2 can control the blade mechanism 12 to change the wind-receiving area according to changes in environmental weather, making it suitable for operation in various wind forces without being limited by weather factors.

[0032] Furthermore, the mounting seat 11 is cylindrical with a circular groove formed therein. In this embodiment, the blade assembly 1 includes two sets of blade mechanisms 12, and the angle between two adjacent sets of blade mechanisms 12 is 90°. In this way, it is possible to ensure that the blade assembly 1 receives wind uniformly.

[0033] In other embodiments, the number of blade mechanisms 12 may be three, five, etc., and the blade mechanisms 12 may be arranged at equal angles around the mounting seat 11.

[0034] As shown in Figures 3 and 4, each set of blade mechanisms 12 includes two extension plates 122, which are provided at both ends of a sleeve plate 121. Specifically, the sleeve plate 121 has a rectangular parallelepiped shape, with the side with the larger area serving as the wind-receiving surface and the side with the smaller area facing the mounting base 11. Sliding grooves are provided on both the upper and lower ends of the sleeve plate 121, and are used for the extension plate 122 to slide and retract. The extension plate 122 includes a connecting portion 1221, an extension portion 1222, and a stopper portion 1223. The extension portion 1222 is slidably connected to the sliding groove, and one end of the extension portion 1222 is connected to the connecting portion 1221 and the other end is connected to the stopper portion 1223. The stopper portion 1223 is located in the sliding groove, and the dimensions of the stopper portion 1223 are larger than the dimensions of the notch in the sliding groove, thereby preventing the extension plate 122 from slipping out of the sleeve plate 121. The connecting portion 1221 is located outside the sliding groove and connected to the connecting rod 222, and the outer shape and dimensions of the connecting portion 1221 are the same as those of the sleeve plate 121. The provision of the connecting portion 1221 facilitates connection with the connecting rod 222.

[0035] In other embodiments, only one extension plate 122 may be provided, which can also serve to change the swept area of ​​the blade mechanism 12 .

[0036] Furthermore, the blade mechanism 12 further includes a support rod 123 and a support block 124. The support block 124 is provided on the outer wall of the sleeve plate 121, and one end of the support rod 123 is connected to the mounting seat 11 and the other end is connected to the support block 124.

[0037] In another embodiment, the support block 124 may not be provided, and the support rod 123 may be directly connected to the sleeve plate 121 .

[0038] Furthermore, the number of the adjustment mechanisms 22 should match the number of the blade mechanisms 12, so in this embodiment, the adjustment assembly 2 also includes two sets of adjustment mechanisms 22. And the number of connecting rods 222 should also match the number of extension plates 122, so each set of adjustment mechanisms 22 includes two connecting rods 222, and the two connecting rods 222 are connected to two extension plates 122 respectively, that is, each connecting rod 222 controls one extension plate 122.

[0039] The driving mechanism 21 includes a driving member 211 and two transmission shafts 212. The driving member 211 is mounted on the mounting seat 11. In this embodiment, the driving member 211 is preferably a servo motor. The output end of the driving member 211 is located in a circular groove in the mounting seat 11, and a first bevel gear 213 is mounted on the output end of the driving member 211. The two transmission shafts 212 are respectively connected to the two blade mechanisms 12. Specifically, a second bevel gear 214 is mounted on the end of the transmission shaft 212 that extends into the mounting seat 11, and the second bevel gear 214 is connected to and meshes with the first bevel gear 213, thereby allowing the driving member 211 to rotate the transmission shaft 212. The other end of the transmission shaft 212 is connected to the sleeve plate 121. Furthermore, both the mounting base 11 and the sleeve plate 121 are provided with bearings, and the transmission shaft 212 is connected to the mounting base 11 and the sleeve plate 121 via the bearings. Furthermore, when the transmission shaft 212 rotates, it cannot drive the mounting base 11 and the sleeve plate 121 to rotate. The transmission shaft 212 is further provided with a male thread, and a moving block 221 is provided on the transmission shaft 212. The moving block 221 has a female thread and is screwed onto the transmission shaft 212. Both are made of stainless steel, which ensures stable transmission and normal operation even in open-air operation. Furthermore, when the driving member 211 drives the transmission shaft 212 to rotate, the moving block 221 can move along the transmission shaft 212, i.e., it can move linearly toward or away from the blade mechanism 12. When the moving block 221 moves, the two connecting rods 222 drive the extension plate 122 to extend or retract, thereby changing the swept area of ​​the blade mechanism 12.

[0040] In another embodiment, the driving mechanism 21 may be an electric telescopic rod, and the driving end of the electric telescopic rod is directly connected to the moving block 221 to drive the moving block 221 to perform telescopic movement along its axial direction, thereby similarly controlling the telescopic sliding of the extension plate 122.

[0041] Furthermore, the tip of the power input shaft 31 is connected to the center position of the mounting seat 11, and when the mounting seat 11 rotates, the power input shaft 31 is rotated. A drive gear 33 is provided at the end of the power input shaft 31 away from the mounting seat 11. In this embodiment, a total of four generators 32 connected in parallel are provided, and the four generators 32 are arranged around the power input shaft 31, and the drive gear 33 of the power input shaft 31 meshes with the driven gear 34 of the generator 32. Furthermore, the rotation of the power input shaft 31 drives the generator 32 to generate electricity.

[0042] The self-adaptive wind speed adjusting device for a wind turbine generator further includes a housing assembly 4, which includes a combined upper housing 41 and a lower housing 42. A bearing is provided in the upper housing 41 and connected to the power input shaft 31, and a seal ring is further provided at the connection point for dust and rain protection. In this embodiment, the housing assembly 4 is butterfly-shaped, and the drive gear 33 and four driven gears 34 are provided within the housing assembly 4. The housing assembly 4 protects the drive gear 33 and four driven gears 34, ensuring that the drive gear 33 and four driven gears 34 can operate safely.

[0043] In other embodiments, the number of generators 32 may be one, two, five, etc.

[0044] The self-adaptive wind speed regulator for a wind turbine generator further includes a support base 5 provided at the bottom of the housing assembly 4. The support base 5 is cylindrical. Providing the support base 5 makes it easier to mount the self-adaptive wind speed regulator for a wind turbine generator on a mounting surface such as the ground, and also improves the mounting height of the self-adaptive wind speed regulator for a wind turbine generator.

[0045] The operation process of the self-adaptive wind speed adjusting device for a wind power generator according to this embodiment will be described below.

[0046] The power generation process is as follows: External wind blows and rotates the blade mechanism 12, which in turn rotates the mounting base 11. The rotation of the mounting base 11 synchronously rotates the power input shaft 31, and the driving gear 33 on the power input shaft 31 rotates the driven gear 34 of the generator 32, which then generates power and converts wind energy into electrical energy.

[0047] The process for adjusting the wind-receiving area of ​​the blade mechanism 12 is as follows: When the wind speed is low, the driving member 211 rotates the transmission shaft 212, and as the transmission shaft 212 rotates, it drives the moving block 221 to move closer to the blade mechanism 12. During this movement, the two connecting rods 222 slide the two extension plates 122 toward both ends of the sleeve plate 121, thereby increasing the wind-receiving area of ​​the blade mechanism 12 and increasing the wind resistance.

[0048] When the wind speed is high, the driving member 211 rotates the transmission shaft 212 in the opposite direction, and as the transmission shaft 212 rotates, it drives the moving block 221 to move away from the blade mechanism 12. During this movement, the two connecting rods 222 slide the two extension plates 122 into the sleeve plates 121, thereby reducing the wind-receiving area of ​​the blade mechanism 12 and also reducing wind resistance.

[0049] It is apparent that the above embodiments are merely illustrative examples and are not intended to limit the scope of the present invention. Those skilled in the art can make various modifications and variations based on the above description. It is not necessary or possible to list all the embodiments here. Any obvious modifications and variations derived therefrom still fall within the scope of protection of the present invention. [Explanation of symbols]

[0050] 1 Blade Assembly 11 Mounting seat 12 Blade mechanism 121 Sleeve Plate 122 Extension plate 1221 Connection 1222 Extension 1223 Stopper part 123 Support Rod 124 Support Block 2 Adjustment Assembly 21 Drive mechanism 211 Driving member 212 Transmission shaft 213 First bevel gear 214 Second bevel gear 22 Adjustment mechanism 221 Moving Block 222 connecting rod 3 Power Generation Assembly 31 Power input shaft 32 Generator 33 Drive gear 34 Driven gear 4 Housing Assembly 41 Upper housing 42 Lower housing 5 Support Base

Claims

1. a blade assembly (1) including a mounting seat (11) and a plurality of sets of blade mechanisms (12), the plurality of sets of blade mechanisms (12) being spaced apart along the circumferential direction of the mounting seat (11), the blade mechanism (12) including a sleeve plate (121) and an extension plate (122), the extension plate (122) being slidably connected to the sleeve plate (121), and the sliding direction being along the height direction of the sleeve plate (121); an adjustment assembly (2) including a drive mechanism (21) and a plurality of sets of adjustment mechanisms (22), the drive mechanism (21) being provided on the mounting seat (11), one set of the adjustment mechanism (22) being provided between each set of the blade mechanisms (12) and the mounting seat (11), the adjustment mechanism (22) including a moving block (221) and a connecting rod (222), one end of the connecting rod (222) being hingedly connected to the moving block (221) and the other end being hingedly connected to a side wall of the extension plate (122), the power output end of the drive mechanism (21) being connected to the moving block (221), thereby controlling the moving block (221) to move in a direction toward or away from the blade mechanisms (12); A self-adaptive wind speed adjustment device for a wind turbine generator, comprising: a power input shaft (31) and a plurality of generators (32), wherein the power input shaft (31) has one end connected to the bottom surface of the mounting seat (11) and the other end connected to the generators (32).

2. The blade assembly (1) includes four sets of the blade mechanisms (12), and the included angle between two adjacent sets of the blade mechanisms (12) is 90°; The self-adaptive wind speed adjusting device for a wind turbine generator according to claim 1, characterized in that each set of the blade mechanism (12) includes two of the extension plates (122), and the two extension plates (122) are respectively provided at both ends of the sleeve plate (121).

3. 3. The self-adaptive wind speed adjusting device for a wind power generator according to claim 2, characterized in that: sliding grooves are provided on both ends of the sleeve plate (121); the extension plate (122) includes a connecting portion (1221), an extension portion (1222) and a stopper portion (1223); the extension portion (1222) is slidably connected to the sliding groove; one end of the extension portion (1222) is connected to the connecting portion (1221) and the other end is connected to the stopper portion (1223); the connecting portion (1221) is located outside the sliding groove and connected to the connecting rod (222); and the stopper portion (1223) is located within the sliding groove.

4. The self-adaptive wind speed adjusting device for a wind turbine generator according to claim 3, characterized in that the blade mechanism (12) further includes a support rod (123), one end of which is connected to the mounting seat (11) and the other end of which is connected to the outer wall of the sleeve plate (121).

5. The self-adaptive wind speed adjusting device for a wind power generator according to claim 4, characterized in that a support block (124) is provided on the outer wall of the sleeve plate (121), and the other end of the support rod (123) is connected to the support block (124).

6. The self-adaptive wind speed adjusting device for a wind turbine generator according to claim 2, characterized in that the adjusting assembly (2) includes two sets of the adjusting mechanisms (22), each set of the adjusting mechanisms (22) includes two of the connecting rods (222), and the two connecting rods (222) are connected to two of the extension plates (122), respectively.

7. 7. The self-adaptive wind speed adjusting device for a wind turbine generator according to claim 6, wherein the drive mechanism (21) includes a drive member (211) and two transmission shafts (212), the drive member (211) is mounted on the mounting seat (11), a first bevel gear (213) is mounted on the output end of the drive member (211), one end of the transmission shaft (212) is mounted on a second bevel gear (214) that is meshed with the first bevel gear (213) and the other end is connected to the sleeve plate (121), and the moving block (221) is mounted on the transmission shaft (212) and is screwed to the transmission shaft (212).

8. The self-adaptive wind speed adjusting device for a wind power generator according to any one of claims 1 to 7, characterized in that a drive gear (33) is provided at the end of the power input shaft (31) away from the mounting seat (11), four of the generators (32) are provided around the power input shaft (31), and the drive gear (33) meshes with driven gears (34) of the generators (32).

9. 9. The self-adaptive wind speed adjusting device for a wind turbine generator according to claim 8, further comprising a housing assembly (4), the housing assembly (4) comprising an upper housing (41) and a lower housing (42) coupled together, the drive gear (33) and the driven gear (34) being provided within the housing assembly (4).

10. The self-adaptive wind speed adjusting device for a wind power generator according to claim 9, further comprising a support base (5) provided at the bottom of the housing assembly (4).

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