CN203548061U - Wind pressure type variable pitch mechanism of minitype wind generator - Google Patents
Wind pressure type variable pitch mechanism of minitype wind generator Download PDFInfo
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- CN203548061U CN203548061U CN201320699861.4U CN201320699861U CN203548061U CN 203548061 U CN203548061 U CN 203548061U CN 201320699861 U CN201320699861 U CN 201320699861U CN 203548061 U CN203548061 U CN 203548061U
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- fan
- blower fan
- motor
- wind
- disc
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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 wind pressure type variable pitch mechanism of a minitype wind generator, and relates to the technical field of wind driven generators. The top of a fan hub is fixedly connected with a connecting disc bearing, the top of the connecting disc bearing is connected with a paddle connecting disc, and the bottom of the connecting disc bearing is connected with a fan eccentric disc. A fan small shaft is eccentrically mounted at one end of the fan eccentric disc, the fan small shaft is connected with a fan synchronization disc through a knuckle bearing and a fan pull rod regulating sleeve, and the fan synchronization disc is fixedly connected with a fan central spindle. The fan central spindle penetrates through the fan hub and is sleeved into a motor shaft which is fixed on a motor front gland and a motor rear gland. The fan central spindle is connected with a fan locating disc through a fan locating key, the fan locating disc is fixedly connected to a motor rotor, and the motor rotor is connected with the motor shaft through a spline. By means of the wind pressure type variable pitch mechanism of the minitype wind generator, the electromagnetic cutting area between a motor stator and the motor rotor can be correspondingly regulated along with the change of wind pressure, hence, the stability of generated power of a wind driven generator is guaranteed, and the generating efficiency of a fan is substantially improved, and the service life of the fan is greatly prolonged.
Description
Technical field
The utility model relates to technical field of wind power generator, is specifically related to a kind of wind pressure type blade pitch device of small-sized wind power generator.
Background technique
Because wind-driven generator can only be applied in the more abundant area of wind-resources, and the abundant area of wind-resources often has unstable environment and the severse weathers such as strong wind, fitful wind or even typhoon.Therefore wind-driven generator is worked and must be had self-protection under such environment, resist strong wind, fitful wind ability.Thereby security threat mainly comes from the blast under high wind speed, wind turbines rotor being produced in wind-driven generator work, therefore overcome the load of blast, effectively resist this load, become the wind-driven generator whether can be in the key of trouble free service under strong wind.And in strong wind, wind speed round faces again the problem rising rapidly with wind speed rising, therefore controlling stabilized (steady-state) speed is also the key that guarantees wind-driven generator trouble free service.
The vane change device using on small wind turbine is at present generally centrifugal variation paddle, automatically controlled change oar and blast and becomes oar.The regulation and control of centrifugal variation paddle medium speed are positive feedback regulation and control, along with wind speed increases, can only make the increase of power slow down, and can not reach the object of control completely, and in automatically controlled change oar, have executive component, and there is again observing and controlling element, structure is very complicated, uses very uneconomical on small wind turbine, existing blast becomes oar mainly by wheel hub, blade, linkage mechanism, energy storage spring and blower fan mandrel form, blade is connected with blower fan mandrel by linkage mechanism, energy storage spring is coaxial with blower fan mandrel, increase along with natural wind speed, the positive pressure of blade institute wind-engaging is also along with increase, when wind speed is greater than rated wind speed, blast overcomes the resistance of energy storage spring, impel mandrel to move horizontally along wind direction, when mandrel moves horizontally, by being fixed on the linkage mechanism on wheel hub and mandrel, change the established angle of blade, make blade become oar, reduce lift, reach the object of speed limit, when wind speed diminishes, energy storage spring overcomes blast, mandrel moves to above-mentioned contrary direction, by linkage mechanism, make blade oppositely become oar, keep wind speed round, improve wind energy utilization, have advantages of simple in structure, but there is following problem in this wind pressure type blade pitch device, by energy storage spring, overcome blast, with moving mandrel, move and become in the process of oar, the rotation speed change of generator is larger, cause the generated output excursion of generator large, had a strong impact on the stable output of wind-driven generator, generating efficiency and the generating safety of small-sized wind power generator have been affected.
Model utility content
The utility model provides a kind of wind pressure type blade pitch device of small-sized wind power generator, to solve generating efficiency and the safe problem of generating of the generated output de-stabilising effect wind-driven generator that prior art exists.
The utility model solves the technological scheme that its technical problem adopts:
A kind of wind pressure type blade pitch device of small-sized wind power generator, comprise axial fan hub, electric machine casing, gland before motor rear pressing cover and motor, before motor, gland and motor rear pressing cover are arranged on respectively the rear and front end of electric machine casing, axial fan hub top is fixedly connected with land bearing, land bearing top is connected with blade land, land bearing bottom connects a blower fan eccentric disc, blower fan eccentric disc one end arranges the little axle of blower fan, the little axle of blower fan is connected with blower fan synchronous disk with blower fan pull bar adjustment sleeve by joint shaft bearing, blower fan synchronous disk is fixedly connected with blower fan mandrel, blower fan mandrel is inserted in before being fixed on motor in the motor shaft on gland and motor rear pressing cover through axial fan hub, blower fan mandrel is connected with locating of fans dish by locating of fans key, locating of fans dish is fixedly connected on rotor, rotor is connected with motor shaft by spline.
Above-mentioned and the corresponding motor stator of rotor is fixed on electric machine casing inner side.
On above-mentioned blower fan mandrel in axial fan hub, a shaft sleeve of fan is installed.
Working principle of the present utility model is, blade is by blade land, blower fan eccentric disc is connected with blower fan mandrel with blower fan pull bar adjustment sleeve, blower fan core sleeve is connected in motor shaft, motor shaft is connected with rotor by spline structure, increase along with natural wind speed, the positive pressure of blade institute wind-engaging is also along with increase, when wind speed is greater than rated wind speed, blast impels blade to pass through blade land and land bearing rotary, change the established angle of blade, make blade become oar, blade land drives blower fan eccentric disc to rotate simultaneously, thereby the little axle of the blower fan of installing by bias, joint shaft bearing and blower fan pull bar adjustment sleeve drive the displacement of blower fan synchronous disk, blower fan synchronous disk drives the displacement of blower fan mandrel, blower fan mandrel is by locating of fans key and the moving rotor displacement of locating of fans dribbling, so just, can reduce the electromagnetism cutting area between motor stator and rotor, stable to guarantee blower fan generated output, when wind speed diminishes, blast diminishes, under the suction of motor stator and rotor, rotor drives blower fan mandrel to move to above-mentioned opposite direction by locating of fans key, thereby by the little axle of blower fan, joint shaft bearing, order about eccentric disc to above-mentioned opposite spin by the synchronous disk on mandrel, reach and make fan blade become oar in the other direction to original position, thereby guaranteed the stable of blower fan generated output.
The utility model is by being fixedly connected with blower fan mandrel with rotor, motor shaft and rotor spline joint, blower fan mandrel is connected with blade with blower fan pulling rod adjusting mechanism by blower fan eccentric disc, blade is changing in oar process along with blast like this, drive motor rotor carries out corresponding displacement, the electromagnetism cutting area of having realized between motor stator and rotor is adjusted accordingly along with the variation of blast, thereby guaranteed generated output stable of wind-driven generator, generating efficiency and the working life of greatly having improved blower fan.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model.
1 axial fan hub, 2 electric machine casings, 3 motor rear pressing covers, the front gland of 4 motors, 5 blade lands, 6 land bearings, the little axle of 7 blower fan, 8 blower fan eccentric discs, 9 joint shaft bearings, 10 blower fan pull bar adjustment sleeves, 11 blower fan synchronous disks, 12 blower fan mandrels, 13 shaft sleeve of fans, 14 motor shafts, 15 locating of fans keys, 16 locating of fans dishes, 17 rotors, 18 motor stators in figure.
Embodiment
As shown in the figure, a kind of wind pressure type blade pitch device of small-sized wind power generator, comprise axial fan hub 1, electric machine casing 2, gland 4 before motor rear pressing cover 3 and motor, before motor, gland 4 and motor rear pressing cover 3 are arranged on respectively the rear and front end of electric machine casing 2, axial fan hub 1 top is fixedly connected with land bearing 6, land bearing 6 tops are connected with blade land 5, land bearing 6 bottoms connect a blower fan eccentric disc 8, blower fan eccentric disc 8 one end arrange the little axle 7 of blower fan, the little axle 7 of blower fan is connected with blower fan synchronous disk 11 with blower fan pull bar adjustment sleeve 10 by joint shaft bearing 9, blower fan synchronous disk 11 is fixedly connected with blower fan mandrel 12, blower fan mandrel 12 is inserted in before being fixed on motor in the motor shaft 14 on gland 4 and motor rear pressing cover 3 through axial fan hub 1, a shaft sleeve of fan 13 is installed on the blower fan mandrel 12 in axial fan hub 1, blower fan mandrel 12 is fixed on locating of fans dish 16 by locating of fans key 15, locating of fans dish 16 is fixedly connected on rotor 17, rotor 17 is arranged on motor shaft 14 by spline, motor stator 18 is fixed on electric machine casing 2 inner sides.
Working principle of the present utility model is, blade is by blade land 5, blower fan eccentric disc 8 is connected with blower fan mandrel 12 with blower fan pull bar adjustment sleeve 10, blower fan mandrel 12 is socketed in motor shaft 14, motor shaft 14 is connected with rotor 17 by spline structure, increase along with natural wind speed, the positive pressure of blade institute wind-engaging is also along with increase, when wind speed is greater than rated wind speed, blast impels blade to pass through blade land 5 and 6 rotations of land bearing, change the established angle of blade, make blade become oar, blade land 5 drives blower fan eccentric disc 8 to rotate simultaneously, thereby the little axle 7 of the blower fan of installing by bias, joint shaft bearing 9 and blower fan pull bar adjustment sleeve 10 drive 11 displacements of blower fan synchronous disk, blower fan synchronous disk 11 drives 12 displacements of blower fan mandrel, thereby make rotor 17 axial displacement under motor shaft 14 spline effects being connected with locating of fans dish 16 by locating of fans key 15 with blower fan mandrel 12, so just, can reduce the electromagnetism cutting area between motor stator 18 and rotor 17, stable to guarantee blower fan generated output, when wind speed diminishes, blast diminishes, under the suction of motor stator 18 and rotor 17, rotor 17 drives blower fan mandrel 12 to move to above-mentioned opposite direction by locating of fans key 15, thereby order about blower fan eccentric disc 8 to above-mentioned opposite spin by the little axle 7 of blower fan synchronous disk 11, blower fan on blower fan mandrel 12, joint shaft bearing 9, reach and make fan blade become oar in the other direction to original position, thereby guaranteed the stable of blower fan generated output.
Claims (3)
1. the wind pressure type blade pitch device of a small-sized wind power generator, it is characterized in that comprising axial fan hub, electric machine casing, gland before motor rear pressing cover and motor, before motor, gland and motor rear pressing cover are arranged on respectively the rear and front end of electric machine casing, axial fan hub top is fixedly connected with land bearing, land bearing top is connected with blade land, land bearing bottom connects a blower fan eccentric disc, blower fan eccentric disc one end arranges the little axle of blower fan, the little axle of blower fan is connected with blower fan synchronous disk with blower fan pull bar adjustment sleeve by joint shaft bearing, blower fan synchronous disk is fixedly connected with blower fan mandrel, blower fan mandrel is inserted in before being fixed on motor in the motor shaft on gland and motor rear pressing cover through axial fan hub, blower fan mandrel is connected with locating of fans dish by locating of fans key, locating of fans dish is fixedly connected on rotor, rotor is connected with motor shaft by spline.
2. the wind pressure type blade pitch device of small-sized wind power generator according to claim 1, is characterized in that being fixed on electric machine casing inner side with the corresponding motor stator of rotor.
3. the wind pressure type blade pitch device of small-sized wind power generator according to claim 1, is characterized in that installing on the blower fan mandrel in axial fan hub a shaft sleeve of fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320699861.4U CN203548061U (en) | 2013-10-28 | 2013-10-28 | Wind pressure type variable pitch mechanism of minitype wind generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320699861.4U CN203548061U (en) | 2013-10-28 | 2013-10-28 | Wind pressure type variable pitch mechanism of minitype wind generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203548061U true CN203548061U (en) | 2014-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320699861.4U Expired - Fee Related CN203548061U (en) | 2013-10-28 | 2013-10-28 | Wind pressure type variable pitch mechanism of minitype wind generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203548061U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113915062A (en) * | 2021-10-22 | 2022-01-11 | 常州优谷新能源科技股份有限公司 | Torque self-adjusting type anti-friction wind driven generator rotor assembly |
-
2013
- 2013-10-28 CN CN201320699861.4U patent/CN203548061U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113915062A (en) * | 2021-10-22 | 2022-01-11 | 常州优谷新能源科技股份有限公司 | Torque self-adjusting type anti-friction wind driven generator rotor assembly |
| CN113915062B (en) * | 2021-10-22 | 2023-03-07 | 常州优谷新能源科技股份有限公司 | Torque self-adjusting type anti-friction wind driven generator rotor assembly |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20171028 |