CN2514140Y

CN2514140Y - Fan blade of a wind power generator

Info

Publication number: CN2514140Y
Application number: CN01266082U
Authority: CN
Inventors: 周协义
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-11-15
Filing date: 2001-11-15
Publication date: 2002-10-02
Anticipated expiration: 2011-11-15

Abstract

The utility model relates to a fan blade of a wind driven generator, in particular to a fan blade which can be flexibly adjusted to adapt to wind direction operation and avoid damage of the fan blade, the fan blade of the wind driven generator capable of achieving the discharge lightning protection safety effect mainly comprises: the wind generating set is combined with the outer section of the running axle center of the fan blades, a telescopic adjusting rod corresponding to the fan blades is pivoted, and the other end of the telescopic adjusting rod is pivoted to the middle section of each fan blade; when the telescopic adjusting rod telescopically adjusts the inclination direction angle of the fan blades to adapt to the change of the wind direction and the windward running, the direction of the generator set is changed along with the small angle, so that the damage of the fan blades due to the destruction of oblique wind power is avoided; the outer end of the fan blade can be designed into a pointed structure which can easily attract lightning stroke waves in the air, and a proper discharge circuit is arranged to be connected with the ground in a matched mode, so that the lightning protection effect of guiding the lightning in the air into the ground is achieved.

Description

A kind of fan blade of wind-driven generator

Technical field

The utility model relates to a kind of fan blade of wind-driven generator.Particularly a kind of can be motor-driven adjusting adapt to the blade of wind-driven generator of wind direction running.

Background technique

As shown in Figure 1, Fig. 1 is a kind of schematic perspective view of existing wind-driven generator, promptly stand to principal post 10 upper ends in conjunction with a wind power generating set 11 one, outer section of its running axle center 12 is installed on the fan blade 13 that is radial arrangement, can accept that wind-force promotes and during rotation, can drive the running axle center 12 running generatings of wind power generating set 11 in the windward side direction.

Structure as previously discussed, its fan blade 13 is to be fixing angle of inclination with its base portion and running axle center 12 to combine, and its generator set 11 also must be arranged on principal post 10 upper ends towards fixing wind direction fixed installation, makes fan blade 13 be fixed on the windward side wind-engaging and tries hard to recommend moving and turn round.

Yet, the wind direction of monsoon is along with the transformation in season is had nothing in common with each other, and is fixing, when change of the wind and fan blade can't be regulated when dealing with, when the thrust that fan blade often is subjected to the deflection wind direction turns round reluctantly, make fan blade easily because of abnormal stressed damage.

Wind-driven generator generally all can be located at than the open space in addition, under without any barrier, is easy to be subjected to the attack of thunder and lightning and damages once running into thunderstorm.

So wind-force or the thunder and lightning how to be turned easily at the fixed fan blade structure of above wind-driven generator attack the impaired shortcoming that breaks, and design a kind of fan blade structure of wind-driven generator of improved type, be the difficulty place that the utility model institute desire solves.

Summary of the invention

Main purpose of the present utility model, be to be to provide a kind of fan blade through structure improved wind-driven generator, this fan blade can motor-driven adjusting adapting to the variation of wind direction, and generator set is revised to rotate thereupon and is turned round down with the wind, and avoids fan blade to damage because of the deflection wind direction is stressed.

Another purpose of the present utility model is the fan blade that is to provide a kind of wind-driven generator, and its fan blade has the lightning-arrest effect of the aerial thunder and lightning of guiding, prevent generator and near the danger avoiding being struck by lightning.

For achieving the above object, the utility model in the outer section in wind-driven generator running axle center with the be pivoted base portion of fan blade of a mobile bearing, extension and tie each fan blade stage casing with universal (activity) joint pivot before the operating shaft mind-set in the outer end; The angle of being regulated fan blade by the telescopic adjustment bar is to adapt to wind direction, and generator set rotates to revise thereupon and turns round down with the wind to avoid fan blade impaired, and wherein the telescopic adjustment bar can be oil pressure flexible rod or electric expansion bar; The fan blade outer end is designed to pointed structure to attract aerial thunderbolt ripple again, cooperates the discharge line that coats in the fan blade to be connected with upright ground path on principal post after assembling, to realize being easy to guide the lightning-arrest effect of aerial thunder and lightning.

Description of drawings

Fig. 1 is the schematic perspective view of existing wind-driven generator.

Fig. 2 is a schematic perspective view of the present utility model.

Fig. 3 is the floor map that fan of the present utility model is regulated embodiment.

Fig. 4 is the lightning-arrest embodiment's schematic representation of electricity that draws of the present utility model.

Embodiment

Below, introduce structure content of the present utility model in conjunction with specific embodiments in detail, and the effect that can reach.

Shown in Fig. 2 schematic perspective view of the present utility model, its mainly be one upright to principal post 20 upper ends in conjunction with a wind power generating set 21, outer section in its running axle center 22 is pivoted with the fan blade 23 that is radial arrangement, the outer end that is engaged in running axle center 22 again is pivoted with the telescopic adjustment bar 24 of corresponding fan blade 23, and makes the other end of telescopic adjustment bar 24 be incorporated into the middle section surface of each fan blade 23; Cooperation is shown in Fig. 2-1, and its fan blade 23 is to be hubbed at running axle center 22 with a mobile bearing 25, and telescopic adjustment bar 24 then becomes with the stage casing pivot roped party of one universal (activity) joint 241 with running axle center 22, fan blade 23 respectively in two ends.

Shown in the planimetric map that Fig. 3 fan of the present utility model is regulated embodiment, the fan blade 23 of pivot knot on running axle center 22 cooperates the pivot knot of telescopic adjustment bar 24 to support, make its adjustable fan blade 23 in the normal position of angle solid line forward, accept wind-force in the windward side direction and promote and the running axle center 22 running generatings of drive wind power generating set 21.

And shown in the dotted line of Fig. 3, when wind direction changes, just can adjust the angle of inclination of fan blade 23 by telescopic adjustment bar 24, fan blade 23 as dotted line among the figure changes to adapt to wind direction, and generator set 21 also rotate to be revised thereupon and is turned round down with the wind, and it is impaired that the while avoids fan blade 23 to be subjected to being partial to breaking of angle wind-force again.

And for example shown in the lightning-arrest embodiment's schematic representation of the another kind of discharge of Fig. 4 the utility model, it is the principle that the aerial electric shock ripple of the utility model utilization can be sought sharp-pointed structure discharge automatically, all be designed to the structure of pointed flabellum end 231 especially at the end of fan blade 23, being coated with discharge line 232 again in each fan blade 23 can be connected with upright ground path 26 set in principal post 20, when being arranged on column that the open space stands 20 upper end eminences, can be easily become discharge process, enter ground and reach lightning-arrest effect and can guide thunder and lightning with aerial lightning waveform.

Structure by above-mentioned specific embodiment, ' a kind of fan blade of wind-driven generator ' of the present utility model, operation by the telescopic adjustment bar, and can reach can adapt to change of the wind all can turn round down with the wind and avoid fan blade impaired outside, again by the Blade Design of pointed end and suitable discharge line, it is lightning-arrest to reach discharge, avoids thunder and lightning and attacks and the effect of infringement.

In sum, can see the utlity model has practicability and progressive, and the utility model do not see any publication, have novelty yet, meet the regulation of Patent Law, propose utility application in accordance with the law.

Claims

1. A fan blade of a wind power generator, mainly a wind power generating unit combined at the upper end of a vertical main column, and fan blades arranged radially on the outer part of its operating axis, which can be accepted in the direction of the windward side The wind pushes and rotates, which can drive the operation axis of the wind power generating set to run and generate electricity; its feature is that the base of the fan blade and the operation axis are rotatably pivotally combined, and three pivots are arranged on the outer end of the operation axis. Only the telescopic adjustment rod is provided, and the other end of the telescopic adjustment rod is combined with the middle surface of each fan blade.

2. The fan blade of a wind power generator according to claim 1, characterized in that: the outer end of each fan blade can be designed as a pointed structure, and the discharge line wrapped in the fan blade can be connected with the vertical main Ground wire connection inside the column.

3. The fan blade of a wind power generator according to claim 1, characterized in that the telescopic adjusting rod can be an oil hydraulic telescopic rod or an electric telescopic rod.

4. The fan blade of a wind power generator according to claim 1, characterized in that: the base of the fan blade is pivotally connected to the axis of operation by a movable seat, and the telescopic adjustment rods are respectively at the two ends. It is composed of a universal (movable) joint, a running axis, and the middle section of the fan blade.