CN206845386U

CN206845386U - A kind of blade of wind-driven generator adjustable structure

Info

Publication number: CN206845386U
Application number: CN201720568879.9U
Authority: CN
Inventors: 吴亚军; 徐培培; 张剑虹; 何慧君
Original assignee: China Hydropower Construction Group Rudong New Energy Co Ltd
Current assignee: China Hydropower Construction Group Rudong New Energy Co Ltd
Priority date: 2017-05-19
Filing date: 2017-05-19
Publication date: 2018-01-05
Anticipated expiration: 2027-05-19

Abstract

This application discloses a kind of blade of wind-driven generator adjustable structure, including leaf stage casing, leaf tail section and leaf tail enhanced portion, leaf tail enhanced portion one end is provided with drive rod, the first cavity for being installed with drive rod is provided with leaf stage casing, drive rod and the second cavity of leaf tail enhanced portion can be installed with by being provided with leaf tail section, be provided between leaf stage casing and leaf tail section and coordinated the drive device that leaf tail enhanced portion can be driven to be in and out of the second cavity with drive rod；Leaf stage casing both sides of the edge are equipped with blade enhanced portion, and each blade enhanced portion includes enhancing blade and rotating shaft, and enhancing blade is fixedly connected on rotating shaft, and rotating shaft is axially moveable to be connected to leaf stage casing side edge；Drive device being capable of drive shaft rotation.Thus, by setting leaf tail enhanced portion and blade enhanced portion, length of blade and width is made to increase, and then increase lifting surface area, raising blade capture the ability of moment of torsion and wind energy.

Description

A kind of blade of wind-driven generator adjustable structure

Technical field

It the utility model is related to wind-power electricity generation, more particularly to a kind of blade of wind-driven generator adjustable structure.

Background technology

After mould determines, its profile can not change the blade of wind power generating set.When wind power generating set is in relatively low During wind speed, due to much deviateing blade optimal design state so that impeller moment of torsion and power output are greatly reduced.

Utility model content

The purpose of this utility model is to be to provide a kind of blade of wind-driven generator adjustable structure, solves above-mentioned prior art One or more in problem.

According to one side of the present utility model, there is provided a kind of blade of wind-driven generator adjustable structure, including leaf stage casing, leaf Endpiece and leaf tail enhanced portion, leaf tail enhanced portion one end are provided with drive rod, the first cavity for being installed with drive rod, leaf are provided with leaf stage casing Drive rod and the second cavity of leaf tail enhanced portion can be installed with by being provided with endpiece, be provided between leaf stage casing and leaf tail section Coordinate the drive device that leaf tail enhanced portion can be driven to be in and out of the second cavity with drive rod；Leaf stage casing both sides of the edge are equipped with leaf Piece enhanced portion, each blade enhanced portion include enhancing blade and rotating shaft, and enhancing blade is fixedly connected on rotating shaft, and rotating shaft is vertically It is movably connected on leaf stage casing side edge；Drive device being capable of drive shaft rotation.

In some embodiments：Drive device includes the first outer ring, the second outer ring, rolls inner ring, back-moving spring and more Individual driving blade, first outer ring one end are fixedly installed on leaf stage casing one end, and second outer ring one end is fixedly installed on leaf tail section one end, First outer ring, which is sheathed on, rolls inner ring side, and the second outer ring, which is sheathed on, rolls inner ring opposite side, in the first outer ring inwall and rolling Common ring forms the first ball grooves between ring outer wall, and the first ball is filled with the first ball grooves；Second outer ring inwall and rolling Common ring forms the second ball grooves between ring outer wall in dynamic, be filled with the second ball in the second ball grooves, the first outer ring and the There is gap, multiple driving blade rings are distributed in rolling inner ring, and in gap, driving blade can drive between two outer rings It is dynamic to roll inner ring rotation；The inwall for rolling inner ring is provided with the first screw thread, and drive rod outer wall is provided with second coordinated with the first screw thread Screw thread；Roll inner ring and be coaxially fixed with the first bevel gear close to the one end in leaf stage casing, roller end is provided with and the first umbrella shape tooth The second bevel gear of engagement is taken turns, rotating shaft, the first bevel gear and the second bevel gear are respectively positioned on inside leaf stage casing；Back-moving spring In the second cavity, and drive rod is sheathed on, back-moving spring one end, which is fixed on, rolls inner ring side wall, and the other end is fixed on second Cavity inner wall, when back-moving spring in the raw when, leaf tail enhanced portion is located in the second cavity, enhancing blade be in withdraw shape State.

The utility model is by setting leaf tail enhanced portion and blade enhanced portion, and when wind-force is smaller, back-moving spring resets and driven The dynamic inner ring that rolls rotates forward, and then drives leaf tail enhanced portion into the second inner chamber and driving blade enhanced portion of leaf tail section Withdraw；When wind-force is larger, wind blows driving blade, and driving blade, which drives, rolls inner ring reverse rotation, and then drives leaf tail to increase Second inner chamber and the expansion of driving blade enhanced portion are left by strong portion, length of blade and width is increased, and then increase stress surface Product, improve the ability of blade capture moment of torsion and wind energy.

Brief description of the drawings

Fig. 1 is a kind of structural representation of blade of wind-driven generator adjustable structure of the utility model.

Embodiment

Illustrate below in conjunction with the accompanying drawings, the utility model is described in further detail.

As shown in figure 1, a kind of blade of wind-driven generator adjustable structure, including leaf stage casing 1, leaf tail section 2 and leaf tail enhanced portion 3, also include blade root section with city blade, blade root section, leaf stage casing 1 and leaf tail section 2 are sequentially connected, and the one end of leaf tail enhanced portion 3, which is provided with, drives Lever 31, leaf stage casing 1 is interior to be provided with the first cavity 11 for being used for being installed with drive rod 31, and drive rod can be installed with by being provided with leaf tail section 2 31 and the second cavity 21 of leaf tail enhanced portion 3, it is provided between leaf stage casing 1 and leaf tail section 2 and drive rod 31 coordinates energy Leaf tail enhanced portion 3 is enough driven to be in and out of the drive device of the second cavity 21；The both sides of the edge of leaf stage casing 1 are equipped with blade enhanced portion, Each blade enhanced portion includes enhancing blade 51 and rotating shaft 52, and enhancing blade 51 is fixedly connected on rotating shaft 52, and rotating shaft 52 is along axle To being movably connected on the side edge of leaf stage casing 1；Rotating shaft 52 is arranged in the first cavity 11, is provided with the first cavity 11 and is used to install The axle sleeve of rotating shaft 52, enhancing blade 51 can be fixedly connected on rotating shaft 52 by multiple connecting rods, and the back side in leaf stage casing 1, which is provided with, to be supplied The opening of connecting rod activity, the back side in leaf stage casing 1 are the one side backwards to wind, drive device can drive shaft 52 rotate.

Wherein, drive device includes the first outer ring 41, the second outer ring 42, rolls inner ring 43, back-moving spring 44 and multiple drives Movable vane piece 45, the one end of the first outer ring 41 are fixedly welded on the one end of leaf stage casing 1, and the one end of the second outer ring 42 is fixedly welded on leaf tail section 2 One end, the first outer ring 41, which is sheathed on, rolls the side of inner ring 43, and the second outer ring 42, which is sheathed on, rolls the opposite side of inner ring 43.

Common ring forms the first ball grooves 46, the first ball grooves between the inwall of first outer ring 41 and the rolling outer wall of inner ring 43 The first ball 47 is filled with 46；Common ring forms the second ball grooves between the inwall of second outer ring 42 and the rolling outer wall of inner ring 43 48, be filled with the second ball 49 in the second ball grooves 48, as a result, rolling inner ring 43 can rotate, and leaf stage casing 1 and leaf Endpiece 2 can be attached by the first outer ring 41, the second outer ring 42 and rolling inner ring 43.

There is gap, multiple rings of driving blade 45, which are distributed in, rolls inner ring 43 between first outer ring 41 and the second outer ring 42 Lateral wall, and in the gap.When driving blade 45 receives when blowing of wind energy, driving blade 45 can drive rolling inner ring 43 rotations.

The inwall for rolling inner ring 43 is provided with the first screw thread, and the outer wall of drive rod 31 is provided with the second spiral shell coordinated with the first screw thread Line, when rolling the rotation of inner ring 43, drive rod 31 can be driven to move axially, and then drive leaf tail enhanced portion 3 to be in and out of second The drive device of cavity 21.Roll inner ring 43 and be coaxially fixed with the first bevel gear 53, the end of rotating shaft 52 close to the one end in leaf stage casing 1 Portion is provided with the second bevel gear 54 engaged with the first bevel gear 53, rotating shaft 52, the first bevel gear 53 and the second umbrella shape tooth Wheel 54 is respectively positioned on inside first cavity 11 in leaf stage casing 1.Back-moving spring 44 is sheathed on drive rod in the second cavity 21 31, the one end of back-moving spring 44, which is fixed on, rolls the side wall of inner ring 43, and the other end is fixed on the inwall of the second cavity 21, when back-moving spring 44 When in the raw, leaf tail enhanced portion 3 is located in the second cavity 21, and enhancing blade 2 is in retracted state.

In summary, the utility model resets bullet by setting leaf tail enhanced portion and blade enhanced portion when wind-force is smaller Spring resets and drives rolling inner ring to rotate forward, and then drives leaf tail enhanced portion to enter the second inner chamber of leaf tail section and drive Blade enhanced portion is withdrawn；When wind-force is larger, wind blows driving blade, and driving blade, which drives, rolls inner ring reverse rotation, and then Driving leaf tail enhanced portion leaves second inner chamber and the expansion of driving blade enhanced portion, length of blade and width is increased, and then Increase lifting surface area, improve the ability of blade capture moment of torsion and wind energy.

Described above is only a kind of embodiment of the present utility model, it is noted that for those of ordinary skill in the art For, on the premise of not departing from the utility model and creating design, some similar modification and improvement can also be made, these It should be regarded as within the scope of protection of the utility model.

Claims

A kind of 1. blade of wind-driven generator adjustable structure, it is characterised in that：Strengthen including leaf stage casing (1), leaf tail section (2) and leaf tail Portion (3), described leaf tail enhanced portion (3) one end are provided with drive rod (31), are provided with the leaf stage casing (1) and are used to be installed with the driving The first cavity (11) of bar (31), interior be provided with of the leaf tail section (2) can be installed with the drive rod (31) and leaf tail enhanced portion (3) The second cavity (21), be provided between the leaf stage casing (1) and the leaf tail section (2) and match somebody with somebody with the drive rod (31) Close the drive device that the leaf tail enhanced portion (3) can be driven to be in and out of second cavity (21)；Leaf stage casing (1) both sides Edge is equipped with blade enhanced portion, and each blade enhanced portion includes enhancing blade (51) and rotating shaft (52), the enhancing Blade (51) is fixedly connected on the rotating shaft (52), and the rotating shaft (52) is axially moveable to be connected to leaf stage casing (1) side Edge；The drive device can drive the rotating shaft (52) to rotate.
A kind of 2. blade of wind-driven generator adjustable structure according to claim 1, it is characterised in that：The drive device bag The first outer ring (41), the second outer ring (42), rolling inner ring (43), back-moving spring (44) and multiple driving blades (45) are included, it is described First outer ring (41) one end is fixedly installed on described leaf stage casing (1) one end, and described second outer ring (42) one end is fixedly installed on institute Leaf tail section (2) one end is stated, first outer ring (41) is sheathed on described rolling inner ring (43) side, and the second outer ring (42) are sheathed on Described rolling inner ring (43) opposite side, common ring between the first outer ring (41) inwall and described rolling inner ring (43) outer wall The first ball grooves (46) are formed, the first ball (47) is filled with first ball grooves (46)；In second outer ring (42) Common ring forms the second ball grooves (48) between wall and described rolling inner ring (43) outer wall, is filled out in second ball grooves (48) Filled with the second ball (49), there are gap, multiple driving blades between first outer ring (41) and the second outer ring (42) (45) ring is distributed in the rolling inner ring (43), and in the gap, the driving blade (45) can drive described Roll inner ring (43) rotation；The inwall for rolling inner ring (43) is provided with the first screw thread, drive rod (31) outer wall provided with The second screw thread that first screw thread coordinates；The inner ring (43) that rolls coaxially is fixed with close to one end of the leaf stage casing (1) First bevel gear (53), rotating shaft (52) end are provided with the second bevel gear engaged with first bevel gear (53) (54), the rotating shaft (52), the first bevel gear (53) and second bevel gear (54) are respectively positioned in the leaf stage casing (1) Portion；The back-moving spring (44) is sheathed on the drive rod (31), the back-moving spring in second cavity (21) (44) described rolling inner ring (43) side wall is fixed in one end, and the other end is fixed on the second cavity (21) inwall, when described multiple Position spring (44) in the raw when, it is interior that the leaf tail enhanced portion (3) be located at second cavity (21), the enhancing blade (51) it is in retracted state.