CN205225591U - Aerogenerator becomes reinforcing structure of oar bearing - Google Patents
Aerogenerator becomes reinforcing structure of oar bearing Download PDFInfo
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- CN205225591U CN205225591U CN201521090476.5U CN201521090476U CN205225591U CN 205225591 U CN205225591 U CN 205225591U CN 201521090476 U CN201521090476 U CN 201521090476U CN 205225591 U CN205225591 U CN 205225591U
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- blade
- inner ring
- inner circle
- bearing
- ring
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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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- Rolling Contact Bearings (AREA)
Abstract
The utility model discloses an aerogenerator becomes reinforcing structure of oar bearing, aerogenerator's change oar bearing adopts the turntable bearing, and the outer lane and the wind wheel wheel hub of this turntable bearing pass through outer lane bolted connection, and the inner circle passes through inner circle bolted connection with the blade root of paddle, fitting surface inner circle and paddle blade root is equipped with the beaded finish, by the inner circle bolt with paddle blade root, beaded finish, inner circle fixed connection. Or be equipped with first beaded finish at the fitting surface of inner circle and paddle blade root, be equipped with the second beaded finish at another terminal surface of inner circle, by the inner circle bolt with paddle blade root, first beaded finish, inner circle, second beaded finish fixed connection. The harm of turntable bearing can alleviate.
Description
Technical field
The utility model relates to wind-driven generator, particularly relates to the enhancing structure of this wind-driven generator pitching bearing.
Background technique
The pitch variable bearings of wind-driven generator adopts turntable bearing, and usually, the outer ring of turntable bearing is connected with wind wheel hub, and the blade root fastenings of inner ring and blade, drives inner ring by pitch motor, and blade is deflected, and reaches the object changing blade Windward angle.
At present, there are two hang-ups in the pitch variable bearings of wind-driven generator:
1, because blade is cantilever structure, turntable bearing will bear great shearing moment, and blade rotates with wind wheel again, load, the Impact direction of turntable bearing change in periodically replacing, bearing easily damages, and need change at any time, increases maintenance load and the operating cost of unit.
2, along with the continuous increase of wind-power electricity generation acc power, length, the weight of blade also constantly increase, the load of turntable bearing is also just increasing, do not have the turntable bearing of standard series can for selecting, have to redesign, look for bearing manufacturer to order goods separately, this nonstandard bearing is because of little in batches, expensive, cause unit manufacture cost to increase.
Summary of the invention
The purpose of this utility model is: for the problems referred to above, provides a kind of enhancing structure of wind-driven generator pitching bearing, can extend the working life of pitch variable bearings, also without the need to ordering nonstandard bearing.
One of the technical solution adopted in the utility model is:
An enhancing structure for wind-driven generator pitching bearing, the pitch variable bearings of described wind-driven generator adopts turntable bearing, and the outer ring of this turntable bearing is connected by outer ring bolt with wind wheel hub, and inner ring is connected by inner ring bolt with the blade root of blade; It is characterized in that, be provided with stiffening ring at the fitting surface of inner ring and blade blade root, by inner ring bolt, blade blade root, stiffening ring, inner ring be fixedly connected with.
Two of the technical solution adopted in the utility model is:
An enhancing structure for wind-driven generator pitching bearing, the pitch variable bearings of described wind-driven generator adopts turntable bearing, and the outer ring of this turntable bearing is connected by outer ring bolt with wind wheel hub, and inner ring is connected by inner ring bolt with the blade root of blade; It is characterized in that, be provided with the first stiffening ring at the fitting surface of inner ring and blade blade root, be provided with the second stiffening ring in the other end of inner ring, by inner ring bolt, blade blade root, the first stiffening ring, inner ring, the second stiffening ring are fixedly connected with.
The beneficial effects of the utility model are:
Adopt existing standard series bearing, utilize technique scheme to strengthen bearing rigidity, enable turntable bearing bear worse load, improve the working life of turntable bearing, reduce the manufacture cost of wind-driven generator and the operating cost of user.
Below in conjunction with accompanying drawing, the utility model is further described.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is another kind of structural representation of the present utility model.
Fig. 3 is stiffening ring structural representation
Code name implication in figure:
1-turntable bearing inner ring; 2-turntable bearing outer ring; 3-blade; 4-wind wheel hub;
5-stiffening ring; 5.1-first stiffening ring; 5.2-second stiffening ring;
6-inner ring connecting bolt; 7-outer ring connecting bolt.
Embodiment
embodiment one
See Fig. 1, this example is described for the pitch variable bearings of wind power generator oar blade, this pitch variable bearings is turntable bearing, be contained in the connecting part of blade and wheel hub, wind power generator oar blade 3 is connected with the turntable bearing inner ring 1 of turntable bearing by inner ring connecting bolt 6, wind wheel hub 4 is connected with turntable bearing outer ring 2 by outer ring connecting bolt 7, Enhancement Method sets up stiffening ring 5 on blade 3 with the fitting surface of turntable bearing inner ring 1, by inner ring connecting bolt 6 by blade 3, stiffening ring 5, turntable bearing inner ring 1 is fixedly connected with, thus improve the rigidity of bearing, alleviate the infringement of bearing.Turntable bearing inner ring 1 is driven by pitch motor, and blade can be deflected, and changes the Windward angle of blade, realizes becoming oar.The structure of stiffening ring 5 is shown in Fig. 3.
embodiment two
When fan blade is longer, load suffered by bearing is larger, when the scheme of embodiment one still can not meet rigidity requirement, then all sets up stiffening ring at two end faces of turntable bearing inner ring 1.
As shown in Figure 2, at blade 3 with on the fitting surface of turntable bearing inner ring 1, if the first stiffening ring 5.1, establish the second stiffening ring 5.2 in the other end of turntable bearing inner ring 1, by inner ring connecting bolt 6 by blade 3, first stiffening ring 5.1, turntable bearing inner ring 1, second stiffening ring 5,2 are fixedly connected with.All the other are identical with embodiment one.
Claims (2)
1. an enhancing structure for wind-driven generator pitching bearing, the pitch variable bearings of described wind-driven generator adopts turntable bearing, and the outer ring of this turntable bearing is connected by outer ring bolt with wind wheel hub, and inner ring is connected by inner ring bolt with the blade root of blade; It is characterized in that, be provided with stiffening ring at the fitting surface of inner ring and blade blade root, by inner ring bolt, blade blade root, stiffening ring, inner ring be fixedly connected with.
2. an enhancing structure for wind-driven generator pitching bearing, the pitch variable bearings of described wind-driven generator adopts turntable bearing, and the outer ring of this turntable bearing is connected by outer ring bolt with wind wheel hub, and inner ring is connected by inner ring bolt with the blade root of blade; It is characterized in that, be provided with the first stiffening ring at the fitting surface of inner ring and blade blade root, be provided with the second stiffening ring in the other end of inner ring, by inner ring bolt, blade blade root, the first stiffening ring, inner ring, the second stiffening ring are fixedly connected with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521090476.5U CN205225591U (en) | 2015-12-24 | 2015-12-24 | Aerogenerator becomes reinforcing structure of oar bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521090476.5U CN205225591U (en) | 2015-12-24 | 2015-12-24 | Aerogenerator becomes reinforcing structure of oar bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205225591U true CN205225591U (en) | 2016-05-11 |
Family
ID=55900660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521090476.5U Active CN205225591U (en) | 2015-12-24 | 2015-12-24 | Aerogenerator becomes reinforcing structure of oar bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205225591U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106594065A (en) * | 2016-12-27 | 2017-04-26 | 北京金风科创风电设备有限公司 | Bearing and variable pitch bearing of wind generating set |
| WO2018120815A1 (en) * | 2016-12-30 | 2018-07-05 | Beijing Goldwind Science & Creation Windpower Equipment Co., Ltd. | Pitch bearing, blade, impeller of wind turbine and connecting method for wind turbine |
| CN109854462A (en) * | 2019-03-11 | 2019-06-07 | 中国船舶重工集团海装风电股份有限公司 | A kind of wind-driven generator and its blade pitch device |
| US11454219B2 (en) | 2019-05-10 | 2022-09-27 | General Electric Company | Rotor assembly having a pitch bearing with a stiffener ring |
-
2015
- 2015-12-24 CN CN201521090476.5U patent/CN205225591U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106594065A (en) * | 2016-12-27 | 2017-04-26 | 北京金风科创风电设备有限公司 | Bearing and variable pitch bearing of wind generating set |
| CN106594065B (en) * | 2016-12-27 | 2019-07-05 | 北京金风科创风电设备有限公司 | Bearing and variable pitch bearing of wind generating set |
| WO2018120815A1 (en) * | 2016-12-30 | 2018-07-05 | Beijing Goldwind Science & Creation Windpower Equipment Co., Ltd. | Pitch bearing, blade, impeller of wind turbine and connecting method for wind turbine |
| US10801468B2 (en) | 2016-12-30 | 2020-10-13 | Beijing Goldwing Science & Creation Windpower Equipment Co., Ltd. | Pitch bearing, blade, impeller of wind turbine and connecting method for wind turbine |
| CN109854462A (en) * | 2019-03-11 | 2019-06-07 | 中国船舶重工集团海装风电股份有限公司 | A kind of wind-driven generator and its blade pitch device |
| US11454219B2 (en) | 2019-05-10 | 2022-09-27 | General Electric Company | Rotor assembly having a pitch bearing with a stiffener ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 618000 2 Huashan South Road, Deyang, Sichuan, 2 Patentee after: Dongfang Electric Wind Power Co.,Ltd. Address before: 618000 2 Huashan South Road, Deyang, Sichuan, 2 Patentee before: DONGFANG ELECTRIC WIND POWER Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |