CN201574882U - Centrifuging variable pitch system of wind driven generator - Google Patents
Centrifuging variable pitch system of wind driven generator Download PDFInfo
- Publication number
- CN201574882U CN201574882U CN2009202933525U CN200920293352U CN201574882U CN 201574882 U CN201574882 U CN 201574882U CN 2009202933525 U CN2009202933525 U CN 2009202933525U CN 200920293352 U CN200920293352 U CN 200920293352U CN 201574882 U CN201574882 U CN 201574882U
- Authority
- CN
- China
- Prior art keywords
- fan blade
- blade shaft
- slide rail
- spiral slide
- guide pillar
- 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
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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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- Wind Motors (AREA)
Abstract
The utility model relates to a centrifuging variable pitch system of a wind driven generator, which comprises a fan blade shaft sleeve and a fan blade shaft, wherein the fan blade shaft sleeve is fixedly arranged on a wheel hub; the fan blade shaft is positioned in the fan blade shaft sleeve and fixedly provided with fan blades; the center of the fan blade shaft is provided with a containing cavity; the outlet of the containing cavity is provided with a cover plate; and the containing cavity is internally provided with a 'T'-shaped guide pillar and a spring sheathed on the 'T'-shaped guide pillar, wherein one end of the guide pillar extends out of the cover plate and is fixedly arranged at the bottom part of the fan blade shaft sleeve; one end of the spring pushes against the head part of the 'T'-shaped guide pillar and the other end thereof pushes against the cover plate; the fan blade shaft is provided with a spiral slide rail; the fan blade shaft sleeve is fixedly provided with a guide bolt; and one end of the guide bolt is arranged in the spiral slide rail. In the centrifuging variable pitch system, the fan blade shaft is provided with the spiral slide rail and the fan blade shaft sleeve is fixedly provided with the guide bolt extending in the spiral slide rail; and when wind speed is higher and the generator exceeds rated rotation speed, the fan blade centrifugal force pulls the fan blade shaft to slide outwards along the spiral slide rail, so as to lead the fan blade to change angle and achieve pitch changing effect, thus lowering rotation speed. The magnitude of the centrifugal force automatically determines the size of the pitch changing angles. Simultaneously, the spring is arranged, thus facilitating the reset of the fan blades in time.
Description
Technical field
The utility model relates to a kind of blade control device of wind-driven generator, and particularly a kind of centrifugal action that can utilize fan blade changes the pitch-controlled system of fan blade direction automatically.
Background technique
The generation technology of horizontal axis wind-driven generator is comparative maturity, yet the disadvantage of horizontal axis wind-driven generator is the stability of fan blade, the fan blade of existing horizontal axis wind-driven generator is being aimed at wind direction, bigger at wind speed, and when surpassing the rated speed of generator, because the fan blade of generator is still aimed at wind direction, the rotating speed of fan blade can not slow down, thereby usually exceed the rated speed of generator, the so not only bearing of generator meeting accelerated wear test, the rotor of generator can break under fast state as there being defective, reduce life of generator greatly, and can bring great potential safety hazard.
The model utility content
The purpose of this utility model is at the deficiencies in the prior art, and a kind of wind-driven generator centrifugal variation paddle system that can utilize action of centrifugal force to change the fan blade direction automatically is provided.
The technical solution of the utility model is: a kind of wind-driven generator centrifugal variation paddle system, comprise the fan blade axle sleeve that is installed on the wheel hub, be positioned at the blade shaft of fan blade axle sleeve, be fixed with fan blade on the blade shaft, the place, axle center of described blade shaft is provided with holding cavity, the opening of holding cavity is provided with cover plate, be provided with " T " font guide pillar in the holding cavity and be set in spring on " T " font guide pillar, and an end of guide pillar stretches out cover plate and is installed in the bottom of fan blade axle sleeve, one end of spring props up the head of " T " font guide pillar, and the other end props up cover plate; Described blade shaft is provided with the spiral slide rail, and blade shaft puts and is fixed with guide blot, and an end of guide blot is positioned at the spiral slide rail.
Preferably: the spiral slide rail on the described blade shaft is provided with two sections, and is symmetrically distributed with the fan blade axis, and guide blot is provided with two, is symmetrically distributed in blade shaft and puts.
The beneficial effects of the utility model are: the utility model blade shaft is provided with the spiral slide rail, blade shaft puts and is fixed with the guide blot that stretches in the spiral slide rail, when wind speed bigger, when generator surpasses rated speed, fan blade centrifugal force pulling blade shaft outwards slides along the spiral slide rail, make fan blade change angle and reach change oar effect, thereby reduce rotating speed.Centrifugal force size decision automatically becomes vane angle degree size.Fan blade simultaneously, is provided with spring, so that can in time reset.
Description of drawings
Fig. 1 is a sectional structure schematic representation of the present utility model
Fig. 2 is the structural representation of the utility model blade shaft
Fig. 3 be the utility model Figure 1A-A to sectional view
Embodiment
Below in conjunction with description of drawings embodiment of the present utility model:
A kind of wind-driven generator centrifugal variation paddle system, comprise the fan blade axle sleeve 2 that is installed on the wheel hub 1, be positioned at the blade shaft 3 of fan blade axle sleeve 2, be fixed with fan blade on the blade shaft 3, the place, axle center of described blade shaft 3 is provided with holding cavity 4, the opening of holding cavity 4 is provided with cover plate 5, be provided with " T " font guide pillar 6 in the holding cavity 4 and be set in spring 7 on " T " font guide pillar 6, and an end of guide pillar 6 stretches out cover plate 5 and is installed in the bottom of fan blade axle sleeve 2, one end of spring 7 props up the head of " T " font guide pillar 6, and the other end props up cover plate 5; Described blade shaft 3 is provided with spiral slide rail 8, is fixed with guide blot 9 on the fan blade axle sleeve 2, and an end of guide blot 9 is positioned at spiral slide rail 8.Spiral slide rail 8 on the described blade shaft 3 is provided with two sections, and is symmetrically distributed with the fan blade axis, and guide blot 9 is provided with two, is symmetrically distributed on the fan blade axle sleeve 2.
During work, when the fan blade rotating speed of wind-driven generator was slow, blade shaft 3 was positioned at original state always under the effect of spring 7, and at this moment, guide blot 9 is positioned at an end of the close fan blade of spiral slide rail 8; When the fan blade of wind-driven generator strengthens at wind speed, and under the state that improves of rotating speed, the centrifugal force of fan blade strengthens, under action of centrifugal force, fan blade drives blade shaft 3 and outwards slides along spiral slide rail 8, makes fan blade change angle and reaches change oar effect, thereby reduce rotating speed.Centrifugal force size decision automatically becomes vane angle degree size.
Claims (2)
1. wind-driven generator centrifugal variation paddle system, comprise the fan blade axle sleeve that is installed on the wheel hub, be positioned at the blade shaft of fan blade axle sleeve, be fixed with fan blade on the blade shaft, it is characterized in that: the place, axle center of described blade shaft is provided with holding cavity, the opening of holding cavity is provided with cover plate, be provided with " T " font guide pillar in the holding cavity and be set in spring on " T " font guide pillar, and an end of guide pillar stretches out cover plate and is installed in the bottom of fan blade axle sleeve, one end of spring props up the head of " T " font guide pillar, and the other end props up cover plate; Described blade shaft is provided with the spiral slide rail, and blade shaft puts and is fixed with guide blot, and an end of guide blot is positioned at the spiral slide rail.
2. wind-driven generator centrifugal variation paddle as claimed in claim 1 system, it is characterized in that: the spiral slide rail on the described blade shaft is provided with two sections, and is symmetrically distributed with the fan blade axis, and guide blot is provided with two, is symmetrically distributed in blade shaft and puts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202933525U CN201574882U (en) | 2009-12-21 | 2009-12-21 | Centrifuging variable pitch system of wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202933525U CN201574882U (en) | 2009-12-21 | 2009-12-21 | Centrifuging variable pitch system of wind driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201574882U true CN201574882U (en) | 2010-09-08 |
Family
ID=42694755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202933525U Expired - Fee Related CN201574882U (en) | 2009-12-21 | 2009-12-21 | Centrifuging variable pitch system of wind driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201574882U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975143A (en) * | 2010-11-19 | 2011-02-16 | 宁波锦浪新能源科技有限公司 | Stabilized-speed pitch control device of wind-driven generator |
| CN110030154A (en) * | 2017-09-25 | 2019-07-19 | 青岛兰道尔空气动力工程有限公司 | A kind of resilient movement steering system |
| CN110714932A (en) * | 2019-11-25 | 2020-01-21 | 章丽 | Computer fan with anti-return |
-
2009
- 2009-12-21 CN CN2009202933525U patent/CN201574882U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975143A (en) * | 2010-11-19 | 2011-02-16 | 宁波锦浪新能源科技有限公司 | Stabilized-speed pitch control device of wind-driven generator |
| CN110030154A (en) * | 2017-09-25 | 2019-07-19 | 青岛兰道尔空气动力工程有限公司 | A kind of resilient movement steering system |
| CN110714932A (en) * | 2019-11-25 | 2020-01-21 | 章丽 | Computer fan with anti-return |
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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: 20100908 Termination date: 20171221 |