CN215719218U

CN215719218U - Wind driven generator blade

Info

Publication number: CN215719218U
Application number: CN202122280618.6U
Authority: CN
Inventors: 潘恒伟
Original assignee: Jiangsu Jiuli Wind Power Technology Development Co ltd
Current assignee: Jiangsu Jiuli Wind Power Technology Development Co ltd
Priority date: 2021-09-22
Filing date: 2021-09-22
Publication date: 2022-02-01
Anticipated expiration: 2031-09-22

Abstract

The utility model relates to the technical field of wind power generation, in particular to a wind driven generator blade, which comprises: the wind power generator comprises a generator body, wherein a rotating shaft of the generator body is connected with a plurality of fan blade assemblies in an annular array manner; the fan blade assembly comprises a fan blade plate, a plurality of guide rail pieces and a plurality of fan blades, wherein a rectangular through hole is formed in the fan blade plate, a movable blade is arranged in an inner cavity of the rectangular through hole, the upper end and the lower end of the movable blade are respectively connected with the fan blade plate through the guide rail pieces, and the fan blades are suitable for external air flow to drive the movable blade to slide away from the rectangular through hole; and the guide rail part is provided with an elastic telescopic part which is suitable for driving the movable blade to slide towards the rectangular through hole. Through the mode, the wind power generator blade has the advantages that the wind area can be automatically adjusted through the fan blade assembly, the probability of large deformation of the fan blade assembly is reduced, and the service life is prolonged.

Description

Wind driven generator blade

Technical Field

The utility model relates to the technical field of wind power generation, in particular to a wind driven generator blade.

Background

The wind power generator is an electric power device which converts wind energy into mechanical work, and the mechanical work drives a rotor to rotate so as to finally output alternating current. The wind-driven generator generally comprises components such as an impeller, a generator (including a device), a direction regulator (empennage), a tower, a speed-limiting safety mechanism, an energy storage device and the like.

The air flow in the air is extremely unstable, the speed change of the air flow is large, when the air flow speed around the wind driven generator is suddenly increased, the impeller rotates rapidly in a short time, so that the impeller is easy to generate large deformation, the service life is shortened, and improvement is needed.

SUMMERY OF THE UTILITY MODEL

The utility model mainly solves the technical problem of providing the wind driven generator blade which is simple in structure and easy to install, the wind receiving area of the wind blade component can be automatically adjusted according to the change of the flowing speed of the gas, the probability of deformation of the wind blade component is reduced, and the service life is prolonged.

In order to solve the technical problems, the utility model adopts a technical scheme that: there is provided a wind turbine blade comprising: the wind power generator comprises a generator body, wherein a rotating shaft of the generator body is connected with a plurality of fan blade assemblies in an annular array manner;

the fan blade assembly comprises a fan blade plate, a plurality of guide rail pieces and a plurality of fan blades, wherein a rectangular through hole is formed in the fan blade plate, a movable blade is arranged in an inner cavity of the rectangular through hole, the upper end and the lower end of the movable blade are respectively connected with the fan blade plate through the guide rail pieces, and the fan blades are suitable for external air flow to drive the movable blade to slide away from the rectangular through hole;

and the guide rail part is provided with an elastic telescopic part which is suitable for driving the movable blade to slide towards the rectangular through hole.

In a preferred embodiment of the utility model, a horizontal support plate is connected to the vane plate, and one end of the horizontal support plate, which is far away from the vane plate, is connected to a rotating shaft of the generator body.

In a preferred embodiment of the utility model, the guide rail member comprises a rectangular body and a sliding block, a cavity is arranged on the rectangular body, a plurality of universal balls are arranged in the cavity, and the movable blade is in rolling connection with the universal balls through the sliding block.

In a preferred embodiment of the present invention, the slider is located in the cavity and slidably connected thereto.

In a preferred embodiment of the present invention, the inner wall of the rectangular through hole is provided with a plurality of fixing grooves adapted to the rectangular body.

In a preferred embodiment of the present invention, one end of the elastic expansion member is connected to the slider, and the other end is connected to the inner wall of the cavity, and the elastic expansion member is a spring.

In a preferred embodiment of the utility model, the front face of the moving blade is provided with an arc-shaped cavity.

The utility model has the beneficial effects that: according to the blade of the wind driven generator, the air flows with different sizes drive the movable blade to move, so that the air flow passing performance of the rectangular through hole is changed, the wind area can be automatically adjusted by the blade assembly, the probability of large deformation of the blade assembly is reduced, and the service life is prolonged.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

FIG. 1 is a schematic structural view of a preferred embodiment of a wind turbine blade according to the present invention;

FIG. 2 is a schematic view of the configuration of the connection of the resilient telescoping member to the track member of FIG. 1;

FIG. 3 is a schematic structural view of the wind vane of FIG. 1;

fig. 4 is a schematic view of the moving blade of fig. 1.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

It should be noted that these drawings are simplified schematic views, and only the basic structure of the present invention is described in a schematic manner, and therefore, only the configuration related to the present invention is shown.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 4, an embodiment of the present invention includes:

a wind turbine blade comprising: the wind driven generator comprises a generator body 1, wherein a plurality of fan blade assemblies 20 are connected to a rotating shaft of the generator body 1 in an annular array manner; when the wind driven generator is used, the generator body 1 is installed on the tower, external airflow acts on the fan blade assembly 20, the fan blade assembly 20 rotates circumferentially along the generator body 1, and energy contained in gas flowing is converted into electric energy through the effect of the generator body 1, namely the wind energy is converted into the electric energy.

The fan blade assembly 20 comprises a fan blade plate 21, a rectangular through hole 22 is formed in the fan blade plate 21, a movable blade 23 is arranged in an inner cavity of the rectangular through hole 22, and the fan blade assembly further comprises a plurality of guide rail pieces 24, wherein the upper end and the lower end of the movable blade 23 are respectively connected with the fan blade plate 21 through the guide rail pieces 24, and the fan blade assembly is suitable for external air flow to drive the movable blade 23 to slide away from the rectangular through hole 22; when the external air flows faster, stronger airflow acts on the fan blade assembly 20, the moving blade 23 is blown to move for a certain distance, so that the moving blade 23 moves out of the rectangular through hole 22, and a part of the airflow flows out through the rectangular through hole 22, so that the wind area of the fan blade assembly 20 is reduced, and the probability of large deformation of the fan blade plate 21 is reduced.

The guide rail piece 24 is provided with an elastic telescopic piece 3 which is suitable for driving the movable blade 23 to slide towards the rectangular through hole 22; when the movable blade 232 moves, the elastic expansion piece 3 is compressed, the larger the gas flow speed is, the larger the compression amount of the elastic expansion piece 3 is, namely the better the air flow passing through the rectangular through hole 22 is, and the wind area of the automatic adjusting fan blade assembly 20 is achieved.

The wind blade plate 21 is connected with a horizontal support plate 25, and one end, far away from the wind blade plate 21, of the horizontal support plate 25 is connected with a rotating shaft of the generator body 1.

The guide rail part 24 comprises a rectangular body 241 and a sliding block 242, a cavity 243 is arranged on the rectangular body 241, a plurality of universal balls 244 are installed in the cavity 243, and the moving blade 23 is in rolling connection with the universal balls 244 through the sliding block 242; simple structure, the installation is easy, and slider 242 and universal ball 244 roll connection have reduced the frictional force when moving blade 23 removes.

The slider 242 is located within the cavity 243 and is slidably connected thereto.

The inner wall of the rectangular through hole 22 is provided with a plurality of fixing grooves 4 matched with the rectangular bodies 241, so that the installation is convenient, and the connection firmness is enhanced.

One end of the elastic extensible member 3 is connected with the sliding block 242, the other end of the elastic extensible member is connected with the inner wall of the cavity 243, and the elastic extensible member 3 is a spring, so that the elastic extensible member is simple in structure, easy to install and good in resetting effect.

The front of the movable blade 23 is provided with an arc-shaped cavity 5, and the arc-shaped cavity 5 guides airflow to the middle part, so that the effect of the airflow acting on the fan blade assembly 20 is enhanced.

In conclusion, the wind driven generator blade provided by the utility model has the advantages that the structure is simple, the installation is easy, the wind area can be automatically adjusted by the fan blade component according to the change of the flowing speed of the gas, the deformation probability of the fan blade component is reduced, and the service life is prolonged.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A wind turbine blade comprising: the wind driven generator is characterized in that a rotating shaft of the generator body is connected with a plurality of fan blade assemblies in an annular array manner;

2. The wind driven generator blade as claimed in claim 1, wherein a horizontal support plate is connected to the wind blade plate, and one end of the horizontal support plate, which is far away from the wind blade plate, is connected to a rotating shaft of the generator body.

3. The wind driven generator blade as claimed in claim 1, wherein the guide rail member comprises a rectangular body and a sliding block, the rectangular body is provided with a cavity, a plurality of universal balls are installed in the cavity, and the movable blade is in rolling connection with the universal balls through the sliding block.

4. A wind turbine blade according to claim 3, wherein the slider is located within the cavity and is slidably connected thereto.

5. The wind turbine blade as claimed in claim 1, wherein the inner wall of the rectangular through hole is provided with a plurality of fixing grooves adapted to the rectangular body.

6. The wind turbine blade as claimed in claim 1, wherein the elastic expansion member has one end connected to the slider and the other end connected to the inner wall of the cavity, and the elastic expansion member is a spring.

7. Wind turbine blade according to claim 1, wherein the front face of the moving blade is provided with an arc-shaped cavity.