CN101372938B - Vane - Google Patents
Vane Download PDFInfo
- Publication number
- CN101372938B CN101372938B CN2007100451862A CN200710045186A CN101372938B CN 101372938 B CN101372938 B CN 101372938B CN 2007100451862 A CN2007100451862 A CN 2007100451862A CN 200710045186 A CN200710045186 A CN 200710045186A CN 101372938 B CN101372938 B CN 101372938B
- Authority
- CN
- China
- Prior art keywords
- screw
- thread guide
- blade
- screw rod
- elastic element
- Prior art date
- 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
Links
Images
Classifications
-
- 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
-
- 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
- Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction
Landscapes
- Wind Motors (AREA)
Abstract
The invention discloses a vane, which comprises a vane body and a blade tip mounted on the vane body. A screw is fixed on the blade tip; an elastic element is sleeved on the screw; a hole is formed in the position on the vane body corresponding to the screw; a thread guide sleeve is arranged on the upper section of the hole; the screw is screwed in the thread guide sleeve; and one end of the elastic element is propped against the thread guide sleeve, and the other end thereof is used for limiting the elastic element on the screw through a limiting piece. The vane has the simple structure, can effectively limit a windmill generator to rotate or run away at an ultrahigh speed, has no problems of heating and abrasion caused by mounting a braking system, has the advantages of reasonable design, high automation degree, no wearing parts, longer service life and no maintenance, and is a great breakthrough that the windmill generator mounted in the sky has difficulty in the wearing part replacement and maintenance.
Description
Technical field
The present invention relates to a kind of blade of wind-driven generator.
Background technique
Wind-driven generator can produce overspeed operation when exceeding the quata to decide wind speed at present.Under the serious situation wind-driven generator is damaged; In order not make generator hypervelocity and supercurrent operation; Usually with turning to vertical shaft and main frame partial center, let when exceeding the speed limit the host computer side folk prescription down with the wind to reach deceleration, this structure is owing to reasons such as complex design and accuracy of manufacturing; Fail to reach requirement so the generation actual error is big especially, or all have a lot of deficiencies by the loaded method of output terminal of the control of the circuitry in controller generator.The inventor considers the output terminal loading by the control of the circuitry in controller generator, just in case circuit electronic component change system Control Failure will make wind-driven generator damage.
Summary of the invention
The objective of the invention is through a kind of blade is provided, it has the hypervelocity speed limiting device, can effectively limit running up or driving of wind-driven generator.
The present invention realizes that the technological scheme of above-mentioned purpose is: a kind of blade comprises blade body and is installed in the blade tip on the blade body that a fixing screw rod is with an elastic element on the blade tip on the screw rod; The position corresponding with screw rod has a hole on the blade body; The epimere in this hole is provided with a screw thread guide pin bushing; Said screw rod screws in this screw thread guide pin bushing, and an end of said elastic element is resisted against on this screw thread guide pin bushing, and the other end is limited to elastic element on the screw rod through a bounding means.
Preferably, said screw thread guide pin bushing and screw rod are steep-pitch thread guide pin bushing and screw rod.
Preferably, said bounding means is a shaft block ring.
Preferably, said elastic element is a spring.
The present invention makes it compared with prior art owing to adopted above technological scheme, and have the following advantages and good effect: this blade structure is simple; Can effectively limit running of wind-driven generator ultra high speed or driving, not because of heating and wear problems that brake system causes have been installed, it is reasonable in design; Automaticity is high; No easily damaged parts, life-span speciality and non-maintaining is that wind-driven generator is loaded on the high aerial important breakthrough of changing easily damaged parts and maintenance problems.
Description of drawings
Fig. 1 is a blade enlarged diagram of the present invention;
Structural representation when Fig. 2 turns round with normal speed for the present invention;
Fig. 3 is the structural representation of the present invention when running up;
The deflection resistance and the reaction force schematic diagram of Fig. 4 blade tip during for overspeed operation of the present invention.
Embodiment
As shown in Figure 1, the present invention includes a blade body 1 and be installed in the blade tip 2 on the blade body.A large screw pitch screw rod 3 is fixed in the lower end of blade tip 2, is with an elastic element on the screw rod 3, in the present embodiment, is a spring 4, and is through shaft block ring 8 that spring 4 is spacing on screw rod 3, also is lined with a pad 7 between shaft block ring 8 and the spring 4.Spring 4 uses different pretightening forces on the different power generator set.
Have a circular port 5 with screw rod 3 corresponding positions on the blade body 1, the screw thread guide pin bushing 6 that the epimere fixed installation one in this hole 5 matches with large screw pitch screw rod 3, its lower end perforate, the upper end of spring 4 abuts against on the screw thread guide pin bushing 6.
During installation, can earlier screw rod 3 be stretched into from screw thread guide pin bushing 6, and then cover upper spring 4, through shaft block ring 8 that spring 4 is spacing on screw rod 3, at last with also fixing in screw thread guide pin bushing 6 patchholes 5.
Working procedure of the present invention is following:
As shown in Figure 2, when normal wind speed, blade rotates with normal speed, blade tip 2 not deflections this moment.This blade is in normal power function state.Wherein the arrow indication is a blade steering.
As shown in Figure 3, when superpower wind speed, blade is with high speed rotating; The strength of spring 4 is less than the radial centrifugal force of blade tip 2, and at this moment blade tip 2 produces powerful radial centrifugal force pulling large screw pitch screw rod 3 (or screw thread guide pin bushings 6), simultaneously according to not producing self-locking between large screw pitch screw rod 3 and the screw thread guide pin bushing 6; Make spring 4 be compressed; And then blade tip 2 quilt back-outs (the arrow indication is the blade tip deflection direction), forming blade tip 2 deflection resistance angle α (as shown in Figure 4), the arrow indication is blade tip 2 suffered resistance of air directions.Because of the direction of angle [alpha] and the hydrodynamic angle of blade are opposite, thereby produced powerful reaction force, this moment, the rotational speed of blade just was restricted, thereby can not hypervelocity or driving.
When wind speed is lower than the rotational speed of setting; Because of the pressure of spring 4 radial centrifugal force greater than blade tip 2; Because of the active force of spring 4 back spur not can self-locking large screw pitch screw rod 3 make blade tip 2 be returned to the normal position; The angle that blade and blade tip 2 are consistent is recovered normal state again, and can not influence the power function of blade of wind-driven generator.
Claims (3)
1. a blade is characterized in that comprising blade body and is installed in the blade tip on the blade body,
A fixing screw rod is with an elastic element on the blade tip on the screw rod;
The position corresponding with screw rod has a hole on the blade body; The epimere in this hole is provided with a screw thread guide pin bushing; Said screw rod screws in this screw thread guide pin bushing; One end of said elastic element is resisted against on this screw thread guide pin bushing, and the other end is limited to elastic element on the screw rod through a bounding means, and said screw thread guide pin bushing and screw rod are steep-pitch thread guide pin bushing and screw rod.
2. blade as claimed in claim 1 is characterized in that: said bounding means is a shaft block ring.
3. blade as claimed in claim 2 is characterized in that: said elastic element is a spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100451862A CN101372938B (en) | 2007-08-22 | 2007-08-22 | Vane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100451862A CN101372938B (en) | 2007-08-22 | 2007-08-22 | Vane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101372938A CN101372938A (en) | 2009-02-25 |
| CN101372938B true CN101372938B (en) | 2012-05-30 |
Family
ID=40447261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100451862A Expired - Fee Related CN101372938B (en) | 2007-08-22 | 2007-08-22 | Vane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101372938B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234929B (en) * | 2014-07-24 | 2017-11-07 | 南京航空航天大学 | It is a kind of to control pneumatic equipment bladess load and the device of deformation |
| CN110608131B (en) * | 2018-06-15 | 2022-02-15 | 兰州理工大学 | Passively controlled movable winglet device |
| CN110345002A (en) * | 2019-06-03 | 2019-10-18 | 沈阳航空航天大学 | A kind of Blades For Horizontal Axis Wind of the adaptive rotational deformation of blade tip |
-
2007
- 2007-08-22 CN CN2007100451862A patent/CN101372938B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101372938A (en) | 2009-02-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10174741B2 (en) | Blade pitch control apparatus for small size wind power generator | |
| EP2306008A2 (en) | Yaw bearing assembly for use with a wind turbine and a method for braking the yaw movement | |
| US8334610B2 (en) | Gearless pitch control mechanism for starting, stopping and regulating the power output of wind turbines without the use of a brake | |
| US8317471B2 (en) | Method for preventing rotor overspeed of a wind turbine | |
| CN209293963U (en) | A kind of stall proof electric device of wind-driven generator | |
| WO2018157897A1 (en) | Yaw system monitor for a multi-rotor wind turbine system | |
| CN101372938B (en) | Vane | |
| CN102251936B (en) | Fan and wind wheel locking device thereof | |
| EP2438300A2 (en) | Hub-sited tower monitoring and control system for wind turbines | |
| TW201602458A (en) | Wind power generation system | |
| CN103184973A (en) | Wind turbine generator set yawing system and wind turbine generator set | |
| US20210317817A1 (en) | System and method for mitigating loads acting on a rotor blade of a wind turbine | |
| CN207795459U (en) | A kind of tooling of wind power generating set automation installation pitch-controlled system | |
| CN212508974U (en) | Large wind tunnel fan impeller | |
| CN107701368B (en) | A kind of blade feathering method of Wind turbines | |
| CN201874748U (en) | Centrifugal speed-regulating pitch variable mechanism of wind driven generator | |
| JP7113892B2 (en) | Method and controller and wind turbine for operating wind turbine in emergency mode | |
| CN202117860U (en) | Fan and wind wheel locking device thereof | |
| CN206917958U (en) | A kind of axial flow fan with adjustable moving blades hydraulic cylinder servo control mechanism transmission device | |
| CN217115110U (en) | 3S slip ring | |
| GB2476582A (en) | Axial rod and spider wind turbine blade pitch control for tangentially mounted blades | |
| CN205064175U (en) | Lower wind direction aerogenerator's wind wheel structure | |
| JPS59176472A (en) | Wind power generator | |
| CN202326022U (en) | Wind driven generator | |
| CN218783530U (en) | Wind-powered electricity generation bus duct of installation distance adjustable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI YUE FENG NEW ENERGY TECHNOLOGY CO. Free format text: FORMER OWNER: DONGGUAN SINO-GERMAN WIND POWER ENERGY LIMITED Effective date: 20090925 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20090925 Address after: Shanghai City, Pudong New Area Chuansha new town Shiwan six road No. 766 Building 1 Applicant after: Shanghai Yuefeng Renewable Energy Co., Ltd. Address before: Guangdong Mayong town Dongguan City Industrial Zone Chung gull Applicant before: Dongguan C&G Wind Power Co., Ltd. |
|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20170822 |