CN205478094U - Low wind speed becomes thick liquid apart from aerogenerator from becoming thick liquid apart from aerogenerator impeller and low wind speed certainly - Google Patents
Low wind speed becomes thick liquid apart from aerogenerator from becoming thick liquid apart from aerogenerator impeller and low wind speed certainly Download PDFInfo
- Publication number
- CN205478094U CN205478094U CN201620170029.9U CN201620170029U CN205478094U CN 205478094 U CN205478094 U CN 205478094U CN 201620170029 U CN201620170029 U CN 201620170029U CN 205478094 U CN205478094 U CN 205478094U
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- Prior art keywords
- impeller
- blade
- wind speed
- pitch
- low wind
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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 discloses a low wind speed is from feather aerogenerator impeller, and it includes: impeller dish, impeller spoke axle, change oar control mechanism and blade etc. A plurality of impeller spoke axles of its characterized in that circumference equipartition outside the impeller dish, impeller spoke off -axial are held there is the oar of change control mechanism, it has propeller pitch angle location axle sleeve in proper order to become oar control mechanism on impeller spoke off -axial rachis, become that oar control axle sleeve and axial positioning axle sleeve form, the root of blade has the blade shaft hole, becomes the whole blade shaft hole of packing into of oar control mechanism, wherein becomes oar control axle sleeve and is in the same place with blade retention, makes the blade can rotate in step in impeller spoke axle is becoming the propeller pitch angle mobility scale that oar control mechanism set for with becoming oar control axle sleeve, adjusts the propeller pitch angle. The utility model discloses low wind speed starts in low wind speed interval from feather aerogenerator impeller goes with running behaviour, the utility model also discloses a low wind speed is from feather aerogenerator.
Description
Technical field
The present invention relates to a kind of wind-driven generator, a kind of low wind speed is from pitch-controlled wind-driven generator impeller and low wind
Speed is from pitch-controlled wind-driven generator.
Background technology
At present, wind power generator impeller mainly has fixed pitch and two kinds of versions of feather.Fixed pitch wind-driven generator
Impeller blade propeller pitch angle fixedly mounts, it is impossible to adjust variation.Start bad with runnability in low wind speeds.
Pitch-controlled wind-driven generator impeller blade propeller pitch angle can adjust variation, when wind speed surpasses rated wind speed, makes blade
Feathering becomes oar, and blade is increased by air drag to be made wheel speed slack-off or shuts down, to avoid driving phenomenon to occur.Feathering becomes oar also
Do not change this pitch-controlled wind-driven generator impeller to start and runnability at low wind speed interval.
Summary of the invention
Start at low wind speed interval in order to solve that above-mentioned fixed pitch and pitch-controlled wind-driven generator impeller exist and run
The deficiency of poor performance, the present invention provides a kind of low wind speed to send out from feather wind-force from pitch-controlled wind-driven generator impeller and low wind speed
Motor.
Technical scheme: a kind of low wind speed is from pitch-controlled wind-driven generator impeller, and it includes impeller disk leaf, spoke
Axle, pitch control mechanism, blade and sealing ring etc., it is characterised in that: at the even some leaf spoke shafts of impeller disk excircle, impeller
Spoke shaft length is between 1st/1st to two/3rd of impeller radius, is set with pitch control machine on the axle of leaf spoke shaft outer end
Structure, described pitch control mechanism is to have propeller pitch angle positioning shaft sleeve on the axle of leaf spoke shaft outer end successively, and propeller pitch angle positioning shaft sleeve is used
Alignment pin is fixed on leaf spoke shaft, has pitch control axle sleeve outside propeller pitch angle positioning shaft sleeve, and pitch control axle sleeve can be at leaf
Rotating on spoke shaft, propeller pitch angle positioning shaft sleeve bossing respective with pitch control axle sleeve mutually embeds corresponding barbed portion
In, there is the running clearance adapting to propeller pitch angle variation angle of setting each other, outside pitch control axle sleeve, have axial locating shaft
Set, axial positioning shaft sleeve alignment pin is fixed on leaf spoke shaft.
Blade axis hole, blade axis hole is had to be centrally located on blade mean camber line away from blade inlet edge 1/3rd at root of blade
At chord length.
Described pitch control mechanism entirety loads in sharf hole, and wherein pitch control axle sleeve and blade axis hole are fixed on one
Rising, blade and pitch control axle sleeve be energy synchronous axial system on leaf spoke shaft, and in pitch control mechanism, opposite side has sealing ring.
The principle of the present invention is: blade can be around leaf spoke shaft in the propeller pitch angle mobility scale of pitch control mechanism sets
Rotate, to change the propeller pitch angle of blade.
When low wind speed starts, airflow function in the windward side of blade, due to leaf spoke shaft and sharf centerline hole and
Extended line to trailing edge partial blade area is more than leaf spoke shaft and sharf centerline hole and extended line to blade inlet edge portion
Dividing blade area, blade rotates around leaf spoke shaft, makes blade pitch angle be in the maximum propeller pitch angle set by pitch control mechanism
Position, blade can obtain maximum lift, and impeller can start the most rapidly, accelerates along with wheel speed, impeller after starting
Scan plane overdraught resistance and strengthen and act on the lee face of blade, make blade rotate around leaf spoke shaft, start inverse oar and become oar,
I.e. propeller pitch angle is from large to small, makes blade scan the reduction of plane overdraught resistance, and blade obtains bigger lift-drag ratio, and impeller can be fast
Speed operating, accordingly, blade according to change wind speed, rotating speed, lift and resistance in the angle that variable pitch controlling mechanism sets oneself
Dynamic adjusting blade pitch angle, make blade remain bigger lift-drag ratio, impeller is in low wind speed interval energy even running.
Leaf spoke shaft makes blade effective work done arm of force lengthen, and under identical aerodynamic force, the torque of impeller increases.
The invention also discloses a kind of low wind speed from pitch-controlled wind-driven generator, it includes impeller, and described impeller is specially
Above-mentioned low wind speed is from pitch-controlled wind-driven generator impeller.
Beneficial effects of the present invention:
1, blade starts against oar change oar at low wind speed interval, and blade is in the starting of big propeller pitch angle and has bigger lift, low
Wind speed starting performance is good.
2, impeller can adjust blade pitch angle automatically according to wind speed, rotating speed, lift and the resistance of change, makes impeller protect all the time
Hold bigger lift-drag ratio, adapt to run at low wind speed interval.
3, impeller be provided with leaf spoke shaft make blade acting the arm of force long, identical aerodynamic force inferior lobe wheel torque big.
4, impeller solidity reduces, and impeller and complete machine windage are little.
Accompanying drawing explanation
Fig. 1 is that the low wind speed of the present invention is from pitch-controlled wind-driven generator impeller overall structure schematic diagram
Fig. 2 is that the low wind speed of the present invention is from pitch-controlled wind-driven generator impeller pitch control mechanism and blade construction schematic diagram
Fig. 3 is the A-A sectional view of Fig. 2
Fig. 4 is that the low wind speed of the present invention is from pitch-controlled wind-driven generator impeller pitch control mechanism schematic diagram directly perceived
Fig. 5 is the B-B sectional view of Fig. 4
Fig. 6 is that the low wind speed of the present invention becomes edge when slurry controlling organization sets minimum pitch angle from becoming pitch wind power generator impeller
B-B hatching line sectional view
Fig. 7 is the low wind speed of present invention blade pitch angle schematic diagram when pitch-controlled wind-driven generator impeller starts
Fig. 8 is the low wind speed of present invention blade pitch angle schematic diagram when pitch-controlled wind-driven generator impeller is properly functioning
Label declaration in figure:
1-impeller disk 2-leaf spoke shaft 3-pitch control mechanism 4-blade 5-sealing ring
The 6-axial positioning shaft sleeve of propeller pitch angle positioning shaft sleeve 7-pitch control axle sleeve 8
9-alignment pin 10-alignment pin 11-blade axis hole
Detailed description of the invention
With embodiment, the present invention is described in further detail below in conjunction with the accompanying drawings
According to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, a kind of low wind speed of the present invention is from feather wind-force
Generator impeller, it includes the impeller disk 1, leaf spoke shaft 2, pitch control mechanism 3, blade 4 and sealing ring 5 etc., it is characterised in that:
The even some leaf spoke shafts 2 of the impeller disk 1 excircle, 1st/to two/3rd of a length of impeller radius of leaf spoke shaft 2
Between, leaf spoke shaft 2 outer end axle is set with pitch control mechanism 3, described pitch control mechanism 3 is outside leaf spoke shaft 2
Having propeller pitch angle positioning shaft sleeve 6 successively on end axle, propeller pitch angle positioning shaft sleeve 6 alignment pin 9 is fixed on leaf spoke shaft 2, at pitch
Having pitch control axle sleeve 7 outside angle positioning shaft sleeve 6, pitch control axle sleeve 7 can rotate on leaf spoke shaft 2, propeller pitch angle locating shaft
Set 6 bossings respective with pitch control axle sleeve 7 mutually embed in corresponding barbed portion, have the adaptation oar of setting each other
The running clearance of elongation variation angle, has axial positioning shaft sleeve 8 outside pitch control axle sleeve 7, and axial positioning shaft sleeve (8) is with fixed
Position pin 10 is fixed on leaf spoke shaft 2.
Blade axis hole 11, blade axis hole 11 is had to be centrally located on blade mean camber line away from blade inlet edge three at blade 4 root
At/mono-chord length.
Described pitch control mechanism 3 is overall to be loaded in sharf hole 11, and wherein pitch control axle sleeve 7 is solid with blade axis hole 11
Being scheduled on together, blade 4 and pitch control axle sleeve 7 be energy synchronous axial system on leaf spoke shaft 2, and in pitch control mechanism 3, opposite side has
Sealing ring 5.
The low wind speed of the present invention from the work process of pitch-controlled wind-driven generator impeller is: when low wind speed starts, and air-flow is made
It is used in the windward side of blade 4, owing to leaf spoke shaft 2 and blade axis hole 11 centrage and extended line are to blade 4 rear edge part blade 4
Area is more than leaf spoke shaft 2 and blade axis hole 11 centrage and extended line to blade 4 leading edge portion blade 4 area, and blade 4 is around leaf
Spoke shaft 2 rotates, and makes blade 4 propeller pitch angle be in the maximum propeller pitch angle position set by pitch control mechanism 3, and blade 4 can obtain
Maximum lift, impeller can start the most rapidly, accelerates along with wheel speed after starting, and impeller scans the resistance of plane overdraught
Power strengthens and acts on the lee face of blade 4, makes blade 4 rotate around leaf spoke shaft 2, starts inverse oar and becomes oar, i.e. propeller pitch angle by greatly
Diminishing, make blade 4 reduce scanning plane overdraught resistance, blade 4 obtains bigger lift-drag ratio, impeller energy fast turn-around, according to
This, blade 4 adjusts leaf according to wind speed, rotating speed, lift and the resistance of change in the angle that variable pitch controlling mechanism 3 sets automatically
Sheet 4 propeller pitch angle, makes blade 4 remain bigger lift-drag ratio, and impeller is in low wind speed interval energy even running.
Leaf spoke shaft 2 makes the effective work done arm of force of blade 4 lengthen, and under identical aerodynamic force, the torque of impeller increases.
The invention also discloses a kind of low wind speed from pitch-controlled wind-driven generator, it includes impeller, and described impeller is specially
Above-mentioned low wind speed is from pitch-controlled wind-driven generator impeller, and this low wind speed refer to from becoming other partial structure of pitch wind-driven generator
Prior art, repeats no more herein.
The foregoing is only preferred embodiment of the present invention, in all concept public in the present invention, make any repairing
Change, equivalent and improvement etc. should be included in protection scope of the present invention.
Claims (3)
1. low wind speed is from a pitch-controlled wind-driven generator impeller, and it includes the impeller disk (1), leaf spoke shaft (2), pitch control machine
Structure (3), blade (4) and sealing ring (5) etc., it is characterised in that: the even some leaf spoke shafts (2) of the impeller disk (1) excircle,
Equipped with pitch control mechanism (3) on the axle of leaf spoke shaft (2) outer end, described pitch control mechanism (3) is in leaf spoke shaft (2) outer end
Having propeller pitch angle positioning shaft sleeve (6) on axle successively, propeller pitch angle positioning shaft sleeve (6) alignment pin (9) is fixed on leaf spoke shaft (2),
Having pitch control axle sleeve (7) in propeller pitch angle positioning shaft sleeve (6) outside, pitch control axle sleeve (7) can be upper turn of leaf spoke shaft (2)
Dynamic, propeller pitch angle positioning shaft sleeve (6) mutually embeds in corresponding barbed portion with pitch control axle sleeve (7) respective bossing,
There is the running clearance adapting to propeller pitch angle variation angle of setting each other, have axial locating shaft in pitch control axle sleeve (7) outside
Set (8), axial positioning shaft sleeve (8) alignment pin (10) is fixed on leaf spoke shaft (2), has blade axis hole at blade (4) root
(11), described pitch control mechanism (3) is overall to be loaded in sharf hole (11), wherein pitch control axle sleeve (7) and blade axis hole
(11) it is fixed together, makes blade (4) and pitch control axle sleeve (7) energy synchronous axial system on leaf spoke shaft (2), in pitch control
Mechanism (3) opposite side has sealing ring (5).
2. according to the low wind speed of one described in claim 1 from pitch-controlled wind-driven generator impeller, it is characterised in that: described leaf
Between 1st/to two/3rd of spoke shaft (2) this impeller radius a length of.
3. low wind speed is from a pitch-controlled wind-driven generator, and it includes impeller, it is characterised in that: described impeller is specially power
Require that the low wind speed described in any one of 1-2 is from pitch-controlled wind-driven generator impeller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620170029.9U CN205478094U (en) | 2016-02-29 | 2016-02-29 | Low wind speed becomes thick liquid apart from aerogenerator from becoming thick liquid apart from aerogenerator impeller and low wind speed certainly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620170029.9U CN205478094U (en) | 2016-02-29 | 2016-02-29 | Low wind speed becomes thick liquid apart from aerogenerator from becoming thick liquid apart from aerogenerator impeller and low wind speed certainly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205478094U true CN205478094U (en) | 2016-08-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620170029.9U Expired - Fee Related CN205478094U (en) | 2016-02-29 | 2016-02-29 | Low wind speed becomes thick liquid apart from aerogenerator from becoming thick liquid apart from aerogenerator impeller and low wind speed certainly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205478094U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499576A (en) * | 2016-02-29 | 2017-03-15 | 朱克彦 | Low wind speed is from pitch-controlled wind-driven generator impeller and low wind speed from pitch-controlled wind-driven generator |
-
2016
- 2016-02-29 CN CN201620170029.9U patent/CN205478094U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499576A (en) * | 2016-02-29 | 2017-03-15 | 朱克彦 | Low wind speed is from pitch-controlled wind-driven generator impeller and low wind speed from pitch-controlled wind-driven generator |
| CN106499576B (en) * | 2016-02-29 | 2023-06-20 | 朱克彦 | Impeller of low-wind-speed self-variable-pitch wind-driven generator and low-wind-speed self-variable-pitch wind-driven generator |
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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: 20160817 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |