CN202326022U - Wind driven generator - Google Patents
Wind driven generator Download PDFInfo
- Publication number
- CN202326022U CN202326022U CN2011204650176U CN201120465017U CN202326022U CN 202326022 U CN202326022 U CN 202326022U CN 2011204650176 U CN2011204650176 U CN 2011204650176U CN 201120465017 U CN201120465017 U CN 201120465017U CN 202326022 U CN202326022 U CN 202326022U
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- China
- Prior art keywords
- gear
- shaft
- driven generator
- bearing
- wind
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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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- Wind Motors (AREA)
Abstract
The utility model discloses a wind driven generator, which comprises a gear, a coder, a permanent seat and a gear shaft, wherein the gear is meshed with an inner ring of a variable-pitch rotation support; the coder is connected with the gear; the permanent seat is fixedly arranged on a hub; the coder is fixedly arranged on the permanent seat; the gear is fixedly connected with the gear shaft; a coder shaft is inserted into an inner bore of the gear shaft and is positioned by a puller piece; and the gear shaft is supported in a through hole of the permanent seat. The gear is supported by the gear shaft and the permanent seat, and the coder shaft and the gear rotate jointly. The gear is supported by the permanent seat, and thus, the coder shaft does not bear shear stress but only bear distorting stress. By adopting such a connection mode, the stress state of the coder shaft is improved, and the connection of the gear is also more reliable. The connection mode adopted by the coder and the gear of the wind driven generator is higher in reliability, and further, the reliability of the wind driven generator is enhanced.
Description
Technical field
The utility model relates to technical field of wind power generation, particularly a kind of wind-driven generator.
Background technique
Wind energy more and more receives the attention of countries in the world as a kind of renewable energy sources of cleaning.Wind-power electricity generation is a kind of inexhaustible cleanliness without any pollution energy, is the largest new energy of our times economic development.
The windmill of wind-driven generator comprises at least two blades, and when wind during to said blade, aerodynamic force drives said windmill and rotates.Because the nature wind speed is constantly to change, wind-driven generator needs constantly to follow the tracks of the angle of the said blade of adjustment windward side in the course of the work, and best wind energy is caught and power control to accomplish.
Pitch-controlled system is the important component part of said wind-driven generator, when wind speed changes, adjusts the power adjustments that said angle is realized said pitch-controlled system, when wind speed surpasses cut-out wind speed, said blade can also be under the effect of said pitch-controlled system rapid feathering.
At present, two kinds of encoders generally are installed in the wind-driven generator of electric variable pitch.Encoder is installed in the afterbody that becomes the oar motor, and the revolution of motor is gathered and fed back to control system; Another encoder is called REDUNDANCY ENCODER, gathers the actual rotation data of blade and feeds back to said control system, and said control system compares the data of two encoder collections.
General REDUNDANCY ENCODER connects and meshed gears is supported in the revolution of change oar, and its Connecting format please refer to Fig. 1, and Fig. 1 is a kind of encoder and gear Placement schematic representation of typical wind-driven generator.
Diameter general and the pitching slewing support meshed gears is all bigger; The modulus of said pitching slewing support gear is generally at 12～16mm; With modulus 16mm is example, with the diameter of pitching slewing support meshed gears be 235mm, and the diameter of coder shaft has only 10mm.
Said direct geared is connected with said coder shaft; The suffered power of said gear shaft all will act on the said coder shaft; Said coder shaft not only receives warping stress but also receive shearing stress, has guaranteed not the reliability that connects, and is easy to take place the fault that said gear drops.Control system will report an error in case break down, and said wind-driven generator will and be shut down from the electrical network off-grid, and the reliability that said encoder is connected with said gear has had influence on the wind-driven generator whole reliability.
Therefore, how improving the reliability that encoder is connected with gear, and then improve the reliability of wind-driven generator, is that those skilled in the art is badly in need of the technical problem that solves at present.
The model utility content
The purpose of the utility model provides a kind of wind-driven generator, and the reliability that the encoder of this wind-driven generator is connected with gear is higher.
In order to solve the problems of the technologies described above; The utility model provides a kind of wind-driven generator, the encoder, fixed base and the gear shaft that comprise and become oar revolution support inner ring meshed gears, be connected with said gear, and said fixed base is fixed on the wheel hub; Said encoder is fixed on the said fixed base; Said gear is fixedly connected with said gear shaft, and coder shaft inserts the endoporus of said gear shaft and by holding out against the part location, said gear shaft is supported in the through hole of said fixed base.
Preferably, said gear shaft passes through bearings in the through hole of said fixed base.
Preferably, said gear shaft has the boss of the said bearing in location.
Preferably, the opposite side installing and locating back-up ring of said bearing in the said through hole.
Preferably, said back-up ring is between said bearing and said gear, and said boss is positioned at the opposite side of said bearing, and the said gear shaft between said bearing and the said gear has sleeve.
Preferably, said gear is fixedly connected through nut with said gear shaft.
Preferably, the said part that holds out against is a fastening screw trip bolt.
Preferably, said encoder is fixed on the said fixed base through the encoder bearing.
The utility model provides a kind of wind-driven generator; The encoder, fixed base and the gear shaft that comprise and become oar revolution support inner ring meshed gears, be connected with said gear; Said fixed base is fixed on the wheel hub, and said encoder is fixed on the said fixed base, and said gear is fixedly connected with said gear shaft; Coder shaft inserts the endoporus of said gear shaft and by holding out against the part location, said gear shaft is supported in the through hole of said fixed base.
Said gear shaft is installed in the through hole of said fixed base, and said gear is supported by said gear shaft and said fixed base; Said coder shaft is inserted the endoporus of said gear shaft and is located said coder shaft and said gear co-rotation by holding out against part.Said gear is supported by said fixed base, and then said coder shaft does not receive shearing stress, only receives warping stress.
This kind Placement has been improved the stress of said coder shaft, makes that also the connection of said gear is more reliable.The encoder of said wind-driven generator and the Placement of gear have higher reliability, and then have improved the reliability of said wind-driven generator self.
In a kind of mode, said gear shaft passes through bearings in the through hole of said fixed base.
Said gear shaft is rotating to be installed in the said through hole, through said Bearing Installation, can avoid the friction between said gear shaft and the said through hole.
In another kind of mode, said gear shaft has the boss of the said bearing in location.
In said through hole, boss is set on said gear shaft can make things convenient for the installation of bearing for said bearing location to said gear shaft through said Bearing Installation.
In the further mode, the opposite side installing and locating back-up ring of said bearing in the said through hole.
Said bearing one side is located by said boss, and opposite side is located by the back-up ring in the said through hole.
In a kind of preferred mode, said back-up ring is between said bearing and said gear, and said boss is positioned at the opposite side of said bearing, and the said gear shaft between said bearing and the said gear has sleeve.
Sleeve between said bearing and said gear can be confirmed the distance between said bearing and the said gear.
In the another kind of mode, said gear is fixedly connected through nut with said gear shaft.
Said gear can be connected through the mode of welding with said gear shaft, also can connect through fastening piece.One end of said gear shaft passes the center hole of said gear, then fastening piece such as assembling nut.
Further in the mode, the said part that holds out against is a fastening screw trip bolt.
Locate said gear shaft and said coder shaft by said fastening screw trip bolt, limit the rotation between said gear shaft and the said coder shaft, make the two synchronous rotation.
Description of drawings
Fig. 1 is a kind of encoder and gear Placement schematic representation of typical wind-driven generator;
Fig. 2 is the encoder of the wind-driven generator that the utility model provided and the plan view of gear Placement;
Fig. 3 is the sectional view of the plan view of encoder shown in Figure 2 and gear Placement;
Fig. 4 is the encoder shown in Figure 3 and the partial enlarged drawing of gear Placement.
Embodiment
The core of the utility model provides a kind of wind-driven generator, and the encoder of this wind-driven generator has very high reliability with being connected of gear.
In order to make those skilled in the art better understand the technological scheme of the utility model, the utility model is done further detailed explanation below in conjunction with accompanying drawing and embodiment.
Please refer to Fig. 2 to Fig. 4; Fig. 2 is the encoder of the wind-driven generator that the utility model provided and the plan view of gear Placement; Fig. 3 is the sectional view of the plan view of encoder shown in Figure 2 and gear Placement, and Fig. 4 is the encoder shown in Figure 3 and the partial enlarged drawing of gear Placement.
In a kind of concrete mode of execution; The utility model provides a kind of wind-driven generator; The encoder 2, fixed base 4 and the gear shaft 7 that comprise and become oar revolution support inner ring meshed gears 9, be connected with said gear 9; Said fixed base 4 is fixed on the wheel hub, and said encoder 2 is fixed on the said fixed base 4, and said gear 9 is fixedly connected with said gear shaft 7; Coder shaft 21 inserts the endoporus of said gear shaft 7 and by holding out against part 3 location, said gear shaft 7 is supported in the through hole of said fixed base 4.
Said gear shaft 7 is installed in the through hole of said fixed base 4, and said gear 9 is supported by said gear shaft 7 and said fixed base 4; Said coder shaft 21 is inserted the endoporus of said gear shaft 7 and is located said coder shaft 21 and said gear 9 co-rotation by holding out against part 3.Said gear 9 is supported by said fixed base 4, and then said coder shaft 21 does not receive shearing stress, only receives warping stress.
The mounting type of said gear 9 is more solid and reliable, passes to said coder shaft 21 of only making of said coder shaft 21 and said gear 9 synchronous circumferencial direction power of rotating, and 21 of said coder shaft receive warping stress.Also protected coder shaft 21 when having guaranteed reliability that said gear 9 installs in this kind Placement.
This kind Placement has been improved the stress of said coder shaft 21, makes that also the connection of said gear 9 is more reliable.The encoder 2 of said wind-driven generator has higher reliability with the Placement of gear 9, and then has improved the reliability of said wind-driven generator self.
In a kind of mode, said gear shaft 7 is supported in the through hole of said fixed base 4 through bearing 8.
Said gear shaft 7 rotating being installed in the said through hole are installed through said bearing 8, can avoid the friction between said gear shaft 7 and the said through hole.
Obviously, the installation form between the through hole of said gear shaft 7 and said fixed base 4 not only is confined to bearing 8, and said gear shaft 7 and other installation forms that said through hole can rotate each other also are fine.
In another kind of mode, said gear shaft 7 has the boss 71 of the said bearing 8 in location.
Said gear shaft 7 is supported in the said through hole through said bearing 8, and boss 71 is set on said gear shaft 7 can make things convenient for the installation of bearing 8 for said bearing 8 location.
In the further mode, the opposite side installing and locating back-up ring 5 of said bearing 8 in the said through hole.Said bearing 8 one sides are by said boss 71 location, and opposite side is by 5 location of the back-up ring in the said through hole.
Certainly, the orientation type of said bearing 8 not only is confined to the described situation of above-mentioned each embodiment, and other can make the mode of said bearing 8 location also can be used in the utility model.
In a kind of preferred mode, said back-up ring 5 is between said bearing 8 and said gear 9, and said boss 71 is positioned at the opposite side of said bearing 8, and the said gear shaft 7 between said bearing 8 and the said gear 9 has sleeve 6.
Sleeve 6 between said bearing 8 and said gear 9 can be confirmed the distance between said bearing 8 and the said gear 9.Said boss 71 is said bearing 8 location with said back-up ring 5, is said gear 9 location through said sleeve 6.
Certainly; The mode of confirming position between said bearing 8 and the said gear 9 not only is confined to the described situation of the foregoing description, and other parts or the mounting types that can confirm position relation between said bearing 8 and the said gear 9 also can be used in the utility model.
In the another kind of mode, said gear 9 and said gear shaft 7 are fixedly connected through nut.
Said gear 9 can be connected through the mode of welding with said gear shaft 7, also can connect through fastening piece.One end of said gear shaft 7 passes the center hole of said gear 9, then fastening piece such as assembling nut.
Obviously, the Connecting format between said gear 9 and the said gear shaft 7 also not only is confined to the described situation of above-mentioned enforcement, can realize that said gear 9 also is fine with other Connecting format or connecting means that said gear shaft 7 is fixedly connected.
Further in the mode, the said part 3 that holds out against is fastening screw trip bolt.
Locate said gear shaft 7 and said coder shaft 21 by said fastening screw trip bolt, limit the rotation between said gear shaft 7 and the said coder shaft 21, make the two synchronous rotation.
Certainly, said fastening piece 3 not only is confined to fastening screw trip bolt, can realize that other Connecting format that said gear shaft 7 and said coder shaft 21 are rotated synchronously also can be used in the utility model, for example locating stud etc.
In the further preferred mode, said encoder 2 is fixed on the said fixed base 4 through encoder bearing 1.
Said encoder 2 is fixedly connected said encoder bearing 1, and said encoder bearing 1 is fixed on the fixed base 4, can guarantee that the installation of said encoder 2 is reliable.
Obviously, the mounting type of said encoder 2 not only is confined to the described situation of the foregoing description, can also be fine by other the mounting type that is fixed on the said fixed base 4 that said encoder 2 is reliable and stable.
More than the wind-driven generator that the utility model provided has been carried out detailed introduction.Used concrete example among this paper the principle and the mode of execution of the utility model are set forth, above embodiment's explanation just is used to help to understand the method and the core concept thereof of the utility model.Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the scope of the utility model claim protection.
Claims (8)
1. wind-driven generator; Comprise and become oar and turn round support inner ring meshed gears (9), the encoder (2) that is connected with said gear (9), fixed base (4) and gear shaft (7); Said fixed base (4) is fixed on the wheel hub; Said encoder (2) is fixed on the said fixed base (4), and said gear (9) is fixedly connected with said gear shaft (7), and coder shaft (21) is inserted the endoporus of said gear shaft (7) and located by holding out against part (3); Its spy is being that said gear shaft (7) is supported in the through hole of said fixed base (4).
2. wind-driven generator as claimed in claim 1 is characterized in that, said gear shaft (7) is supported in the through hole of said fixed base (4) through bearing (8).
3. wind-driven generator as claimed in claim 2 is characterized in that, said gear shaft (7) has the boss (71) of the said bearing in location (8).
4. wind-driven generator as claimed in claim 3 is characterized in that, the opposite side installing and locating back-up ring (5) of said bearing (8) in the said through hole.
5. wind-driven generator as claimed in claim 4; It is characterized in that; Said back-up ring (5) is positioned between said bearing (8) and the said gear (9), and said boss (71) is positioned at the opposite side of said bearing (8), and the said gear shaft (7) between said bearing (8) and the said gear (9) has sleeve (6).
6. like each described wind-driven generator of claim 1 to 5, it is characterized in that said gear (9) is fixedly connected through nut with said gear shaft (7).
7. wind-driven generator as claimed in claim 6 is characterized in that, the said part (3) that holds out against is a fastening screw trip bolt.
8. wind-driven generator as claimed in claim 7 is characterized in that, said encoder (2) is fixed on the said fixed base (4) through encoder bearing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204650176U CN202326022U (en) | 2011-11-21 | 2011-11-21 | Wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204650176U CN202326022U (en) | 2011-11-21 | 2011-11-21 | Wind driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202326022U true CN202326022U (en) | 2012-07-11 |
Family
ID=46438004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204650176U Expired - Fee Related CN202326022U (en) | 2011-11-21 | 2011-11-21 | Wind driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202326022U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106150902A (en) * | 2016-08-25 | 2016-11-23 | 云南明阳风电技术有限公司 | The double-deck encoder that a kind of wind-driven generator pitching and driftage use |
-
2011
- 2011-11-21 CN CN2011204650176U patent/CN202326022U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106150902A (en) * | 2016-08-25 | 2016-11-23 | 云南明阳风电技术有限公司 | The double-deck encoder that a kind of wind-driven generator pitching and driftage use |
| CN106150902B (en) * | 2016-08-25 | 2018-06-08 | 云南明阳风电技术有限公司 | A kind of device of encoder for being used to connect wind-driven generator pitching and yaw uses |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20131121 |