Fan blade of wind driven generator

Abstract

The invention provides a wind driven generator fan blade, and relates to the technical field of wind power generation, the wind driven generator fan blade comprises a rotating head and blades rotatably mounted on the rotating head, one end of each blade is circumferentially distributed on the rotating head, the other end of each blade is hinged to a ring body, and a plurality of rotatable wind guide sheets are mounted on the ring body; the blades rotate on the rotating head by rotating the gear shaft, the deflection angles of the blades are changed, and then the rotating speed of the whole fan blades is adjusted; the driving mechanism and the rope are used for driving all the air guide blades to generate angle deflection, so that blowing of lateral wind is coped, and the whole fan blades are driven to rotate.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power generation, and in particular to a wind generator blade. Background Art

[0002] In the field of wind power generation, there are many types of wind turbines, the most common of which is the three-blade wind turbine, which makes the blades rotate by the wind direction blowing towards them, thereby driving the engine to run and generate electricity. Normally, the rotation direction of the blades is fixed, and the rotation speed can be adjusted by rotating the self-rotating blades to change the angle of the blades to adjust the rotation speed of the entire generator. When the blades encounter lateral wind force, the rotation efficiency of the blades will be low or will not rotate, and the wind force cannot be converted. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a wind turbine blade to solve the problem that the blade cannot cope with the lateral wind conversion.

[0004] Based on the technical problems existing in the background technology, the present invention proposes a wind turbine fan blade, including a rotor and blades rotatably mounted on the rotor, one end of a plurality of the blades being circumferentially distributed on the rotor, the other ends of the plurality of the blades being hinged with a ring body, and a plurality of rotatable air guide vanes being mounted on the ring body.

[0005] Preferably, the blade is provided with an extension portion in the rotor, a gear is mounted on the extension portion, a gear shaft meshing with the gear is rotatably mounted in the rotor, and the rotation of the gear shaft can drive the gear to rotate.

[0006] Preferably, the ring body comprises a ring piece, a shaft block and a reinforcement piece, the two ring pieces are connected by the shaft block, the end of the blade away from the rotor is rotatably connected to the shaft block, and the two ring pieces are fixed by circumferentially distributed reinforcement pieces.

[0007] Preferably, the reinforcement member is located between two ring sheets.

[0008] Preferably, the air guide plate is rotatably installed between the two ring plates, the end of the air guide plate is connected to a pulley, an annular rope is installed on the periphery of the pulley, and a driving mechanism for driving the rope to move linearly is installed on the ring plate.

[0009] Preferably, a flange is installed on the rotating head.

[0010] Compared with the prior art, the wind turbine blade proposed by the present invention adopts the above technical solution to achieve the following technical effects:

[0011] The present invention rotates the gear shaft to rotate the blades on the rotor, changes the deflection angle of the blades, and then adjusts the rotation speed of the entire fan blade; in the present invention, all the air guide blades are driven to deflect at an angle through a driving mechanism and a rope to cope with the blowing of the side wind and drive the entire fan blade to rotate. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The three-dimensional structure of the present invention Figure 1 ;

[0013] Figure 2 The three-dimensional structure of the present invention Figure 2 ;

[0014] Figure 3 It is a ring structure diagram of the present invention.

[0015] In the figure: 1, rotor; 2, blades; 3, ring body; 4, air guide vane; 21, gear; 5, gear shaft; 31, ring piece; 32, shaft block; 33, reinforcement; 41, pulley; 6, rope; 7, driving mechanism; 11, flange. DETAILED DESCRIPTION

[0016] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0017] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0018] Example

[0019] Please refer to Figure 1-Figure 3The present invention proposes a wind turbine blade, including a rotor 1 and a blade 2 rotatably mounted on the rotor 1. The blade 2 can freely rotate on the rotor 1 to change the angle of the blade 2. The present invention has three blades 2, and the number of blades 2 can be increased. The angles between the blades 2 need to be consistent to maintain balance; two ring pieces 31 are arranged on the ends of the outer periphery of the blade 2, the blade 2 is located between the two ring pieces 31, and the two ring pieces 31 are connected by a reinforcement 33. A shaft block 32 is also connected between the blades 2, and the shaft block 32 is used to connect the ends of the blades 2.

[0020] In a specific implementation manner, refer to Figure 2 , Figure 3 A plurality of air guide blades 4 are rotatably installed between the two ring blades 31. The air guide blades 4 can be deflected, and the angle between the radius of all the air guide blades 4 and the ring blade 31 is the same. When the wind blows towards the air guide blades 4 from the side, a part of the air guide blades 4 will face the wind direction in the reverse direction, and the wind can blow the air guide blades 4, and a part of the air guide blades 4 will face the wind direction in the same direction. The wind will flow along the outer surface of the air guide blades 4 and will not provide thrust. At this time, the thrust on the air guide blades 4 in the reverse direction will be greater than the air guide blades 4 in the same direction, and the entire fan blade can rotate to generate electricity.

[0021] In a specific implementation manner, refer to Figure 3 A pulley 41 is connected to the end of the air guide blade 4, and the pulley 41 has an annular groove. A rope 6 is tightly installed on the pulley 41. The rope 6 is located in the groove of the pulley 41. There is friction between the rope 6 and the pulley 41. The rope 6 is driven by the rope 6 driving mechanism 7. At this time, the rope 6 can drive all the air guide blades 4 to deflect.

[0022] In a specific implementation manner, refer to Figure 2 The blade 2 is provided with an extension portion in the rotor 1, on which a gear 21 is mounted. A gear shaft 5 meshing with the gear 21 is rotatably mounted in the rotor 1. The rotation of the gear shaft 5 can simultaneously drive the gears 21 on all the blades 2 to rotate, thereby causing the blades 2 to deflect.

[0023] In a specific implementation manner, refer to Figure 1 A flange 11 is installed on the rotor 1, and the flange 11 is used to connect the power generation equipment on the generator.

[0024] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A wind turbine blade, comprising a rotor (1) and a blade (2) rotatably mounted on the rotor (1), characterized in that: One end of the plurality of blades (2) is circumferentially distributed on the rotor (1), and the other end of the plurality of blades (2) is hingedly connected to a ring body (3), on which a plurality of rotatable air guide blades (4) are mounted.

2. The wind turbine blade according to claim 1, characterized in that: The blade (2) is provided with an extension portion in the rotor (1), a gear (21) is mounted on the extension portion, a gear shaft (5) meshing with the gear (21) is rotatably mounted in the rotor (1), and the rotation of the gear shaft (5) can drive the gear (21) to rotate.

3. The wind turbine blade according to claim 1, characterized in that: The ring body (3) comprises a ring piece (31), a shaft block (32) and a reinforcement piece (33); the two ring pieces (31) are connected via the shaft block (32); one end of the blade (2) away from the rotor (1) is rotatably connected to the shaft block (32); and the two ring pieces (31) are fixed via circumferentially distributed reinforcement pieces (33).

4. The wind turbine blade according to claim 3, characterized in that: The reinforcement member (33) is located between the two ring sheets (31).

5. The wind turbine blade according to claim 3, characterized in that: The air guide plate (4) is rotatably mounted between the two ring plates (31); the end of the air guide plate (4) is connected to a pulley (41); an annular rope (6) is mounted on the periphery of the pulley (41); and a driving mechanism (7) for driving the rope (6) to move linearly is mounted on the ring plate (31).

6. The wind turbine blade according to claim 1, characterized in that: A flange (11) is installed on the rotor (1).

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