CN202883242U - Mechanical wind driven generator speed stabilization pitching device - Google Patents
Mechanical wind driven generator speed stabilization pitching device Download PDFInfo
- Publication number
- CN202883242U CN202883242U CN201220383387XU CN201220383387U CN202883242U CN 202883242 U CN202883242 U CN 202883242U CN 201220383387X U CN201220383387X U CN 201220383387XU CN 201220383387 U CN201220383387 U CN 201220383387U CN 202883242 U CN202883242 U CN 202883242U
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- China
- Prior art keywords
- blade
- wheel hub
- driven generator
- wind
- generator
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model relates to a mechanical wind driven generator speed stabilization pitching device. The pitching device comprises a pitching drive system and a hub arranged on a generator shaft. The hub is connected with the root of blades of a wind driven generator. Two ends of the hub are respectively provided with a set of rectilinear motion bearings. The hub is installed on the generator shaft through the rectilinear motion bearings. A triple coupling gear mechanism is arranged in the hub, and the triple coupling gear mechanism comprises a triple coupling on the generator shaft and three drive gears. The three drive gears are arranged on the triple coupling in the mode that each two drive gears form an angle of 120 degrees. Each drive gear is meshed with a driven gear which is connected in the root of the blades, and the meshing clearances between the gears are adjusted through adjusting nuts. A limit device restraining the motion of the hub is arranged on the generator shaft. The mechanical wind driven generator speed stabilization pitching device is good in stability and low in cost, and changes blade incidences and controls the lift force of the blades through the installation of the triple coupling gear mechanism between the blades and the hub. Accordingly, torque and power act on the wind turbine blades can be controlled and power control is achieved.
Description
Technical field
The utility model relates to a kind of vane change device of wind-driven generator, specifically, relates to a kind of wind-driven generator stabilized-speed pitch control device that is used for regulating the wind turbines rotor rotating speed when changing for wind speed.
Background technique
Wind energy has become one of current available main energy sources as renewable, the environmental protection energy.In the power generation process, because natural wind speed is changeable, in order to improve the utilization ratio of wind energy, wind-driven generator often adopts and becomes the oar technology in wind, when running into strong wind even typhoon, reaches the stable output of generated output by adjusting fan blade and the angle that facings the wind; Paddle changing wind power generator all is to adopt to be hinged structure basically, and the hinged place generally all needs lubricating oil filling fat, otherwise is hinged easy to wear.Present existing vane change device adopts machinery control mostly, and its complicated structure, that the strong wind stability inferior is poor, impeller becomes oar is frequent; Minority adopts electronic control to become the oar technology, and its manufacture cost is high, maintenance is inconvenient, and there is considerable influence in wind-driven generator.After wind-driven generator moved a period of time, the lubricant grease meeting loss in the wind-driven generator needed to add lubricant grease and is lubricated, and has increased the maintenance difficulty of wind-driven generator.
The model utility content
The purpose of this utility model is for existing wind-driven generator pitching device above shortcomings, and the mechanical type wind-driven generator stabilized-speed pitch control device of a kind of simple in structure, low cost of manufacture, good stability is provided.
The technical solution of the utility model is: a kind of mechanical type wind-driven generator stabilized-speed pitch control device, this vane change device comprises the wheel hub that becomes the oar drive system and be installed in generator shaft, this wheel hub is connected with the root of blade of wind-driven generator, the two ends of wheel hub respectively are provided with a cover linear motion bearing, and wheel hub is installed on the generator shaft by linear motion bearing; Be provided with three joint shaft gear mechanisms in the wheel hub, this three joint shaft gears mechanism comprises three coupling and three actuation gears that are fixedly mounted on the generator shaft, three actuation gears are installed on three coupling with 120 ℃ of angles each other, each actuation gear all meshes with a driven gear that is connected to root of blade, and passes through the back lash of adjusting nut adjusting gear; Be provided with the limit stoper of constraint wheel hub motion on the generator shaft.
Preferably, driven gear is fixedly connected with root of blade by the driven gear connecting rod.
Preferably, the top of wind power generator blade root is equipped with blade locking device.
Preferably, blade locking device comprises pressure bearing and locking nut, and pressure bearing and locking nut are installed in the top of root of blade successively.
Preferably, limit stoper is arranged on a side of wheel hub, and this limit stoper is pressure spring, and the end of pressure spring is provided with the stop collar that prevents the pressure spring damage; The opposite side of wheel hub is provided with damping device.
Preferably, damping device is resistance spring.
Preferably, the root of blade of wind-driven generator is connected with wheel hub by blade bearing.
The beneficial effects of the utility model are: simple in structure, the low cost of manufacture of the utility model, by the three joint shaft gear mechanisms of between blade and wheel hub, installing, thereby change blade incidence, control thus the lift of blade, to reach the moment of torsion of control action on wind wheel blade and the purpose of power, realize the power control of wind-driven generator; Wheel hub is installed on the generator shaft by linear motion bearing, makes wheel hub can do stably straight line motion, good stability on generator shaft; Be provided with the limit stoper of constraint wheel hub motion on the generator shaft, make in the process of wheel hub front and back motion on generator shaft, its move distance is received constraint, and by the damping device damping, prolongs its working life.
Description of drawings
Accompanying drawing 1 is the positive view of the utility model embodiment;
Accompanying drawing 2 is the sectional view of the utility model embodiment.
Embodiment
Below in conjunction with description of drawings embodiment of the present utility model.
A kind of mechanical type wind-driven generator stabilized-speed pitch control device, this vane change device comprises the wheel hub 2 that becomes the oar drive system and be installed in generator shaft 1, this wheel hub 2 is connected with the root of blade of wind-driven generator by blade bearing 3, the two ends of wheel hub 2 respectively are provided with a cover linear motion bearing 4, wheel hub 2 is installed on the generator shaft 1 by linear motion bearing 4, makes wheel hub 2 can do stably straight line motion on generator shaft 1; Be provided with three joint shaft gear mechanisms in the wheel hub 2, this three joint shaft gears mechanism comprises three coupling 5 and three actuation gears 6 that are fixedly mounted on the generator shaft 1, three actuation gears 6 are installed on three coupling 5 with 120 ℃ of angles each other, each actuation gear 6 all meshes with a driven gear 7 that is connected to root of blade, and passes through the back lash of adjusting nut 8 adjusting gears.Driven gear 7 is fixedly connected with root of blade by driven gear connecting rod 9.The top of wind power generator blade root is equipped with blade locking device, and this blade locking device comprises pressure bearing 10 and locking nut 11, and pressure bearing 10 and locking nut 11 are installed in the top of root of blade successively.Be provided with the limit stoper of constraint wheel hub 2 motions on the generator shaft 1, limit stoper is arranged on a side of wheel hub 2, this limit stoper is pressure spring 12, be used for retraining the move distance of wheel hub, the end of pressure spring 12 is provided with the stop collar 13 that prevents pressure spring damage, prevents the pressure spring 12 power damage that withstands shocks when strong wind; The opposite side of wheel hub 2 is provided with damping device, and this damping device is resistance spring 14, plays the effect of damping.
Working principle: receive the blast of different wind speed at wind wheel after, the pressure spring 12 of wheel hub 2 one sides is compressed, wheel hub 2 moves to the opposite direction of wind direction, change oar drive system in the wheel hub 2 is by the movement of wheel hub 2, drive actuation gear 6 and be rotated in the forward, with driven gear 7 engagement interlocks, make driven gear 7 opposite spins, drive blade rotary, change the angle of attack of blade and wind.
Wind wheel is positive to facing the wind, and realizes that according to the angle that the size of blast is adjusted between blade and the wind direction automatically wind wheel has a constant rotational speed to wind-driven generator; The blower fan normal operation period, for power ratio control output, become propeller angle and be limited to 10 degree between 20 degree, become propeller angle and automatically adjust according to the variation of wind speed, when wind speed surpasses the unit rated wind speed, namely wind speed at 12m/s between the 25m/s time, for power ratio control output, become propeller angle and be limited to 0 degree between 10 degree, become propeller angle and automatically adjust according to the variation of wind speed, make the rotating speed of wind wheel keep constant by the angle of controlling blade.
When wind speed continues to surpass 25m/s; utilize aerodynamic principle can make blade along slurry 25 degree, become negative value with the angle of attack of wind direction, become the oar drive system and make and become propeller angle to be stabilized in 25 degree constant; the angle of attack of blade makes fan parking by changing into negative value with the interlock that becomes the oar drive system.
Claims (7)
1. mechanical type wind-driven generator stabilized-speed pitch control device, it is characterized in that: this vane change device comprises the wheel hub that becomes the oar drive system and be installed in generator shaft, this wheel hub is connected with the root of blade of wind-driven generator, the two ends of wheel hub respectively are provided with a cover linear motion bearing, and wheel hub is installed on the generator shaft by linear motion bearing; Be provided with three joint shaft gear mechanisms in the wheel hub, this three joint shaft gears mechanism comprises three coupling and three actuation gears that are fixedly mounted on the generator shaft, three actuation gears are installed on three coupling with 120 ℃ of angles each other, each actuation gear all meshes with a driven gear that is connected to root of blade, and passes through the back lash of adjusting nut adjusting gear; Be provided with the limit stoper of constraint wheel hub motion on the generator shaft.
2. mechanical type wind-driven generator stabilized-speed pitch control device as claimed in claim 1, it is characterized in that: driven gear is fixedly connected with root of blade by the driven gear connecting rod.
3. mechanical type wind-driven generator stabilized-speed pitch control device as claimed in claim 1, it is characterized in that: the top of wind power generator blade root is equipped with blade locking device.
4. mechanical type wind-driven generator stabilized-speed pitch control device as claimed in claim 3, it is characterized in that: blade locking device comprises pressure bearing and locking nut, pressure bearing and locking nut are installed in the top of root of blade successively.
5. mechanical type wind-driven generator stabilized-speed pitch control device as claimed in claim 1, it is characterized in that: limit stoper is arranged on a side of wheel hub, and this limit stoper is pressure spring, and the end of pressure spring is provided with the stop collar that prevents the pressure spring damage; The opposite side of wheel hub is provided with damping device.
6. mechanical type wind-driven generator stabilized-speed pitch control device as claimed in claim 5, it is characterized in that: damping device is resistance spring.
7. mechanical type wind-driven generator stabilized-speed pitch control device as claimed in claim 1, it is characterized in that: the root of blade of wind-driven generator is connected with wheel hub by blade bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220383387XU CN202883242U (en) | 2012-08-06 | 2012-08-06 | Mechanical wind driven generator speed stabilization pitching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220383387XU CN202883242U (en) | 2012-08-06 | 2012-08-06 | Mechanical wind driven generator speed stabilization pitching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202883242U true CN202883242U (en) | 2013-04-17 |
Family
ID=48074677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220383387XU Expired - Fee Related CN202883242U (en) | 2012-08-06 | 2012-08-06 | Mechanical wind driven generator speed stabilization pitching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202883242U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110030158A (en) * | 2019-05-15 | 2019-07-19 | 张国欣 | A kind of novel hydraulic-control wind-driven generator |
| CN112879214A (en) * | 2021-01-12 | 2021-06-01 | 罗国聪 | Small-size fan wind-powered electricity generation wheel hub with automatic oar structure that becomes |
-
2012
- 2012-08-06 CN CN201220383387XU patent/CN202883242U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110030158A (en) * | 2019-05-15 | 2019-07-19 | 张国欣 | A kind of novel hydraulic-control wind-driven generator |
| CN110030158B (en) * | 2019-05-15 | 2024-02-06 | 张国欣 | Novel hydraulic control wind driven generator |
| CN112879214A (en) * | 2021-01-12 | 2021-06-01 | 罗国聪 | Small-size fan wind-powered electricity generation wheel hub with automatic oar structure that becomes |
| CN112879214B (en) * | 2021-01-12 | 2023-06-09 | 湖南天风科技有限公司 | Small-sized fan wind power hub with automatic pitch structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20140806 |
|
| EXPY | Termination of patent right or utility model |