1. A blade structure of a wind power generator is characterized in that: the supporting frame comprises a main frame (1), wherein a plurality of transverse supporting rods (2) penetrate through the center of the main frame (1), a plurality of limiting shaft sleeves (3) are fixedly connected to the peripheral sides of the main frame (1), a plurality of longitudinal supporting rods (5) are fixedly connected to the centers of the top and the bottom of the main frame (1), and fixing nuts (4) are screwed on the outer walls of a plurality of groups of transverse supporting rods (2) and longitudinal supporting rods (5) close to one end of the main frame (1);

multiunit the outside winding of horizontal bracing piece (2) and longitudinal support pole (5) has design cotton net (6), the outside cladding of design cotton net (6) has filling layer (7), epoxy coating (8) are applied paint with a brush in the outside of filling layer (7), the outside cladding of epoxy coating (8) has carbon fiber coating (9).

2. The blade structure of a wind power generator according to claim 1, wherein: the main framework (1) is made of aluminum alloy or high-hardness rubber rod materials.

3. The blade structure of a wind power generator according to claim 1, wherein: a plurality of through-holes are seted up at the center of main frame (1), and are a plurality of the through-hole all link up each other with corresponding a set of spacing axle sleeve (3).

4. The blade structure of a wind power generator according to claim 1, wherein: the plurality of groups of transverse supporting rods (2) and longitudinal supporting rods (5) are arranged in a mutually perpendicular structure.

5. The blade structure of a wind power generator according to claim 1, wherein: the shaping cotton net (6) is made of asbestos net materials.

6. The blade structure of a wind power generator according to claim 1, wherein: the filling layer (7) is made of PVC plastic materials.

7. Method for forming a blade structure for a wind turbine according to any of claims 1 to 6, characterised in that it comprises the following specific contents:

s1, penetrating a plurality of customized transverse supporting rods (2) through a plurality of corresponding limiting shaft sleeves (3), and locking and fixing the positions of the plurality of transverse supporting rods (2) by using a plurality of fixing nuts (4) after the positions of the plurality of transverse supporting rods (2) are determined;

s2, fixing a plurality of groups of longitudinal support rods (5) on the top and the bottom of the corresponding main framework (1) respectively;

s3, after the framework part is manufactured, winding the shaping cotton net (6) on the outer sides of the plurality of groups of transverse supporting rods (2) and the longitudinal supporting rods (5), and fixing the tail end of the shaping cotton net (6);

s4, after the shaping cotton net (6) is uniformly wound, filling a proper amount of filling layers (7) on the outer side of the shaping cotton net (6) according to the design structure of the blade, and thus finishing the shaping work of the whole shape of the whole blade;

s5, after the filling layer (7) is shaped, uniformly coating the prepared epoxy resin coating (8) on the outer side of the filling layer (7), placing the blade into an ultraviolet lamp box after coating, and accelerating the solidification of the epoxy resin coating (8) by utilizing the uniform irradiation of ultraviolet lamp light;

s6, after the epoxy resin coating (8) is solidified, uniformly coating the cut carbon fiber material on the outer side of the blade, and fixing the carbon fiber material by using glue to form a carbon fiber coating layer (9), and after the carbon fiber coating layer (9) is formed, coating paint on the outer side of the carbon fiber coating layer (9) to finish the appearance shaping of the blade.

Background

The wind driven generator is a device for converting wind energy into electric energy, mainly comprises blades, a generator, mechanical parts and electrical parts, and is mainly divided into a horizontal axis wind driven generator and a vertical axis wind driven generator according to different rotating shafts, wherein the horizontal axis wind driven generator in the current market occupies the mainstream position; the design of blades in a wind driven generator directly influences the conversion efficiency of wind energy, directly influences the annual energy production, and is an important ring for wind energy utilization, and modern micro and small wind driven generators also adopt wooden blades which are not easy to be twisted, and large and medium wind driven generators rarely use wooden blades which are also used as whole wood beams with good strength to bear the force and bending moment which the blades must bear during working, and the requirements on the blades are higher and higher along with the development of the wind power generation industry; the blade is also an important index, and researches show that the blade made of the carbon fiber composite material has two to three times of the rigidity of the glass fiber reinforced plastic composite blade, and although the performance of the carbon fiber composite material is greatly superior to that of the glass fiber composite material, the carbon fiber composite material is expensive, so that the wide-range application of the carbon fiber composite material in wind power generation is influenced.

The blade is an important component of the wind driven generator, various types of wind driven generator blades are available in the market at present, but the existing wind driven generator blade is too simple in structural design and is usually made of metal materials or high-hardness plastic materials, the wind driven generator blade can be normally used, but the overall structural strength and the bending resistance of the wind driven generator blade are relatively poor, and the blade is easy to break or bend and deform when facing strong wind, so that the normal use of the wind driven generator is influenced.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a blade structure of a wind driven generator and a forming method thereof.

In order to achieve the purpose, the invention is realized by the following technical scheme: the blade structure of the wind driven generator and the forming method thereof comprise a main framework, wherein a plurality of transverse supporting rods penetrate through the center of the main framework, a plurality of limiting shaft sleeves are fixedly connected on the peripheral side of the main framework, a plurality of longitudinal supporting rods are fixedly connected with the centers of the top and the bottom of the main framework, and fixing nuts are screwed on the outer walls of a plurality of groups of transverse supporting rods and longitudinal supporting rods close to one end of the main framework;

the outer side winding of multiunit horizontal bracing piece and longitudinal support pole has the design cotton net, the outside cladding of design cotton net has the filling layer, the outside of filling layer is brushed with the epoxy coating, the outside cladding of epoxy coating has the carbon fiber coating.

Preferably, the main framework can be made of aluminum alloy or high-hardness rubber rod materials.

Preferably, a plurality of through holes are formed in the center of the main framework, and the through holes are communicated with a corresponding group of limiting shaft sleeves.

Preferably, the plurality of groups of transverse supporting rods and longitudinal supporting rods are arranged in a mutually vertical structure.

Preferably, the shaping cotton net is made of asbestos net materials.

Preferably, the filling layer is made of a PVC plastic material.

The forming method of the blade structure of the wind driven generator comprises the following specific contents:

s1, firstly, penetrating a plurality of customized transverse supporting rods through a plurality of corresponding limiting shaft sleeves, and after the positions of the plurality of transverse supporting rods are determined, locking and fixing the positions of the plurality of transverse supporting rods by using a plurality of fixing nuts;

s2, fixing a plurality of groups of longitudinal support rods on the top and the bottom of the corresponding main frameworks respectively;

s3, after the framework part is manufactured, winding the shaping cotton net on the outer sides of the plurality of groups of transverse supporting rods and the longitudinal supporting rods, and fixing the tail end of the shaping cotton net;

s4, after the shaping cotton net is uniformly wound, filling a proper amount of filling layers on the outer side of the shaping cotton net according to the design structure of the blade, so that the shaping work of the whole shape of the whole blade is completed;

s5, after the filling layer is shaped, uniformly coating the prepared epoxy resin coating on the outer side of the filling layer, placing the blade into an ultraviolet lamp box after coating, and accelerating the solidification of the epoxy resin coating by utilizing the uniform irradiation of ultraviolet lamp light;

s6, after the epoxy resin coating is solidified, the cut carbon fiber material is uniformly coated on the outer side of the blade and is fixed by glue, so that a carbon fiber coating layer is formed, after the carbon fiber coating layer is formed, paint or other materials can be coated on the outer side of the carbon fiber coating layer, and the appearance shaping of the blade is completed.

The invention provides a blade structure of a wind driven generator and a forming method thereof. The method has the following beneficial effects:

1. according to the blade structure of the wind driven generator and the forming method thereof, the blade can be ensured not to be easily broken or deformed in a strong wind environment by adopting a simple structural design and a simple processing technology, and meanwhile, the blade structure is convenient to rapidly produce and process.

2. According to the blade structure of the wind driven generator and the forming method of the blade structure, the keel type structural design is adopted, and the coating filling layer, the epoxy resin coating layer and the carbon fiber coating layer are adopted, so that the firmness of the whole structure of the blade can be ensured, and meanwhile, the blade is lighter, and the whole working efficiency is greatly improved.

Drawings

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

FIG. 2 is a schematic structural view of a blade structural skeleton of a wind turbine according to the present invention;

FIG. 3 is a schematic cross-sectional view of a blade structure of a wind turbine according to the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 2 at A;

fig. 5 is a partially enlarged view of fig. 3 at B.

Wherein, 1, a main framework; 2. a transverse support bar; 3. a limiting shaft sleeve; 4. fixing a nut; 5. a longitudinal support bar; 6. shaping the cotton net; 7. a filling layer; 8. an epoxy resin coating; 9. a carbon fiber coating layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-5, an embodiment of the present invention provides a blade structure of a wind turbine, including a main frame 1, a plurality of transverse support rods 2 penetrate through the center of the main frame 1, a plurality of limit shaft sleeves 3 are fixedly connected to the peripheral side of the main frame 1, a plurality of longitudinal support rods 5 are fixedly connected to the centers of the top and the bottom of the main frame 1, and fixing nuts 4 are screwed on the outer walls of a plurality of groups of transverse support rods 2 and longitudinal support rods 5 near one end of the main frame 1;

the outside winding of multiunit horizontal bracing piece 2 and longitudinal support pole 5 has design cotton web 6, and the outside cladding of design cotton web 6 has filling layer 7, and the outside of filling layer 7 is scribbled the brush and is had epoxy coating 8, and epoxy coating 8's the outside cladding has carbon fiber coating 9.

Preferably, the main frame 1 can be made of aluminum alloy or high-hardness rubber rod, the main frame 1 made of aluminum alloy or high-hardness rubber rod is firmer in overall structure and lighter in weight, and light weight of the blade can be achieved.

For example, a plurality of through-holes have been seted up at the center of main skeleton 1, and a plurality of through-holes all link up each other with corresponding a set of spacing axle sleeve 3, and the through-hole that corresponds need be run through in the installation to the horizontal bracing piece 2 of multiunit, and the outer wall of the horizontal bracing piece 2 of multiunit all sets up screw thread, can fix horizontal bracing piece 2 fast through utilizing fixation nut 4 to close soon.

Further, multiunit horizontal bracing piece 2 and longitudinal support pole 5 all are mutually perpendicular structure setting, and the multiunit horizontal bracing piece 2 and the longitudinal support pole 5 that are mutually perpendicular structure setting can make whole blade more firm, and the atress is more even, is difficult to take place moreover and warp.

Preferably, design cotton-padded net 6 is made by the asbestos gauge material, and design cotton-padded net 6 that the asbestos gauge material was made both can play the supporting role, also conveniently carries out subsequent design simultaneously.

Preferably, the filling layer 7 is made of a PVC plastic material, and the filling layer 7 made of the PVC plastic material has the advantages of firm structure, high overall strength, wear resistance, high temperature resistance and the like.

The invention also provides a forming method of the blade structure of the wind driven generator, which comprises the following specific contents:

s1, firstly, penetrating a plurality of customized transverse supporting rods 2 through a plurality of corresponding limiting shaft sleeves 3, and after the positions of the plurality of transverse supporting rods 2 are determined, locking and fixing the positions of the plurality of transverse supporting rods 2 by using a plurality of fixing nuts 4;

s2, fixing a plurality of groups of longitudinal support rods 5 on the top and the bottom of the corresponding main framework 1 respectively;

s3, after the framework part is manufactured, winding the shaping cotton net 6 on the outer sides of the plurality of groups of transverse supporting rods 2 and longitudinal supporting rods 5, and fixing the tail end of the shaping cotton net 6;

s4, after the shaping cotton net 6 is uniformly wound, filling a proper amount of filling layers 7 on the outer side of the shaping cotton net 6 according to the design structure of the blade, so that the shaping work of the whole shape of the whole blade is completed;

s5, after the filling layer 7 is shaped, uniformly coating the prepared epoxy resin coating 8 on the outer side of the filling layer 7, placing the blade into an ultraviolet lamp light box after coating, and accelerating the solidification of the epoxy resin coating 8 by utilizing the uniform irradiation of ultraviolet lamp light;

s6, after the epoxy resin coating 8 is solidified, the cut carbon fiber material is uniformly coated on the outer side of the blade and is fixed by glue, so that a carbon fiber coating layer 9 is formed, after the carbon fiber coating layer 9 is formed, paint or other materials can be coated on the outer side of the carbon fiber coating layer 9, and the appearance shaping of the blade is finished.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.