CN201874759U - Enhanced hub of wind generating set - Google Patents
Enhanced hub of wind generating set Download PDFInfo
- Publication number
- CN201874759U CN201874759U CN2010206440229U CN201020644022U CN201874759U CN 201874759 U CN201874759 U CN 201874759U CN 2010206440229 U CN2010206440229 U CN 2010206440229U CN 201020644022 U CN201020644022 U CN 201020644022U CN 201874759 U CN201874759 U CN 201874759U
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- CN
- China
- Prior art keywords
- pitch control
- hub
- pitch
- hub body
- installation base
- 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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Classifications
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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 aims at providing an enhanced hub of a wind generating set, which solves the problems in the prior art that materials are plastically deformed and are broken down due to fatigue and the like in the stress concentration area under the limit work condition. The enhanced hub comprises a hub body, a main shaft mounting lug boss, mounting bases of a pitch control speed-reducing motor, pitch control bearing mounting lug bosses and pitch control cabinet mounting bases. The enhanced hub has the technical key points that: the spherical hub body is in a three-way form and is symmetrically provided with three pitch control bearing mounting lug bosses along the circumferential direction; each pitch control bearing mounting lug boss is respectively provided with four pitch control cabinet mounting bases and one mounting base of the pitch control speed-reducing motor; and the main shaft mounting lug boss, the mounting bases of the pitch control speed-reducing motors, the pitch control bearing mounting lug bosses and the pitch control cabinet mounting bases are integrally formed with the hub body by casting. The enhanced hub of the wind generating set has the advantages of reasonable structural design, optimized stress distribution, light weight, strong bearing capability, low stress concentrated sensitiveness and favorable shockproof effect.
Description
Technical field
The utility model relates to a kind of main load bearing element of wind power generating set, particularly a kind of wind power generating set enhancement mode wheel hub that adopts optimized Structure Design.It is applicable to 1.5 megawatt dual-feed asynchronous wind power generator groups.
Background technique
As everyone knows, wheel hub is one of core part of wind power generating set, it is a main load bearing element, can bear from the moment of flexure of whole six directions of wind wheel and the impact of axial force, also is stressing conditions complexity and the highest vital part of reliability requirement the most in the wind power generating set.At present, the wheel hub load capacity is big, and housing bears huge side direction moment of flexure, in the region of stress concentration under the limited conditions, is prone to material plastic deformation and destruction, and the fatigue ruption under random load.For addressing the above problem, existing report in some relevant patent documentations, as China Patent No. is that 200920264907.3 " a kind of wind-driven generator group wind-wheel wheel hub " to have put down in writing hub body be the "T"-shaped body of hollow, two symmetrical connecting ends are respectively arranged with and are used for a plurality of attachment holes of being connected with two vane propeller-changing bearing bolts on the T-shape body, and its structure only is applicable to the blower fan of two blades.At present, the MW class blower fan wind wheel overwhelming majority adopts three blade wind wheels, because three blade wind wheels operate steadily, the dynamics of blower fan is better, and is little to the influence of each parts of blower fan.And from visual angle, three blade fan operations symmetrically, the shakiness that two blade blower fans are then looked.As China Patent No. is that " the MW class wind turbine group wheel hub with enforced loop plane " of 200920037216.X discloses a kind of MW class wind turbine group wheel hub that adopts enforced loop plane, its wheel hub cavity inner wall is provided with enforced loop plane near the disc position, overcome the wheel hub material that exists in the prior art and be prone to problems such as plastic deformation and destruction, but limit by structure, its resisting fatigue destructive characteristics is relatively poor, therefore haves much room for improvement.
The model utility content
The purpose of this utility model provides a kind of wind power generating set enhancement mode wheel hub, it solved exist in the prior art in the region of stress concentration under the limited conditions, be prone to problems such as material plastic deformation and fatigue ruption, its reasonable in design, stress distribution optimization, in light weight, bearing capacity is strong, stress concentration sensitivity is low, antivibration is effective.
The technological scheme that the utility model adopted is: this wind power generating set enhancement mode wheel hub comprises hub body, main shaft installation base, variable pitch speed reducer fitting seat, pitch variable bearings installation base, becomes oar cabinet fitting seat, its technological points is: described to be spherical hub body be the threeway form, along circumferentially being arranged with three described pitch variable bearings installation bases, each described pitch variable bearings installation base is equipped with four change oar cabinet fitting seats and a variable pitch speed reducer fitting seat; Described main shaft installation base, variable pitch speed reducer fitting seat, pitch variable bearings installation base and change oar cabinet fitting seat and described hub body integral casting forming.
Advantage and the good effect that the utlity model has are: because the method that the utility model adopts theoretical algorithm to combine with finite element analysis is optimized wheel hub structure, make that to be spherical hub body be the threeway form, along circumferentially being arranged with three pitch variable bearings installation bases, each pitch variable bearings installation base is equipped with four change oar cabinet fitting seats and a variable pitch speed reducer fitting seat; Described main shaft installation base, variable pitch speed reducer fitting seat, pitch variable bearings installation base and change oar cabinet fitting seat and hub body integral casting forming, its reasonable distribution load capacity and safety coefficient, improve the hub body stress distribution, reduce stress concentration sensitivity, increase the bearing capacity of wheel hub, therefore, reasonable in design, in light weight, bearing capacity is strong, stress concentration sensitivity is low, antivibration is effective.It solved exist in the prior art in the region of stress concentration under the limited conditions, be prone to problems such as material plastic deformation and fatigue ruption.
Description of drawings
Below in conjunction with accompanying drawing and example the utility model is further specified.
Fig. 1 is a kind of concrete structure schematic representation of the present utility model.
Sequence number explanation among the figure: 1 hub body, 2 main shaft installation bases, 3 pitch variable bearings installation bases, 4 variable pitch speed reducer fitting seats, 5 become oar cabinet fitting seat.
Embodiment
Describe concrete structure of the present utility model in detail according to Fig. 1.The method that this wind power generating set enhancement mode wheel hub adopts theoretical algorithm to combine with finite element analysis is optimized wheel hub structure, makes on the wheel hub
Stress is concentrated
The placeAnd the design that is optimized of the structure in the bigger zone of stress, increase some round-corner transition structures, reduce the size that wheel hub connects boss, make the stressed more even of wheel hub, reduce the stress of size sudden change place and concentrate, improve the force-bearing situation of wheel hub.It comprises parts such as hub body 1, main shaft installation base 2, pitch variable bearings installation base 3, variable pitch speed reducer fitting seat 4 and change oar cabinet fitting seat 5.Wherein be spherical hub body 1 and be the threeway form, along circumferentially being arranged with three pitch variable bearings installation bases 3, each pitch variable bearings installation base
3Be equipped with four change oar cabinet fitting seats 5 and a variable pitch speed reducer fitting seat 4.Main shaft installation base 2, pitch variable bearings installation base 3, variable pitch speed reducer fitting seat 4 and change oar cabinet fitting seat 5 and hub body 1 integral casting forming have reduced the region of stress concentration of connection place, reduce the stress sensitivity of wheel hub.Wherein, main shaft installation base 2 is wheel hubs and the boss that connects of main shaft, and this connection boss is a boss that slightly exceeds hub body 1 sphere, because that the bulge size of boss is compared the diameter of hub body 1 is little a lot, so the Root Stress receptance of boss is low.In like manner, the design of the boss of pitch variable bearings installation base 3 also is to reduce stress sensitivity according to same principle.
Claims (1)
1. wind power generating set enhancement mode wheel hub, comprise hub body, main shaft installation base, variable pitch speed reducer fitting seat, pitch variable bearings installation base, become oar cabinet fitting seat, it is characterized in that: described to be spherical hub body be the threeway form, along circumferentially being arranged with three described pitch variable bearings installation bases, each described pitch variable bearings installation base is equipped with four change oar cabinet fitting seats and a variable pitch speed reducer fitting seat; Described main shaft installation base, variable pitch speed reducer fitting seat, pitch variable bearings installation base and change oar cabinet fitting seat and described hub body integral casting forming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206440229U CN201874759U (en) | 2010-12-07 | 2010-12-07 | Enhanced hub of wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206440229U CN201874759U (en) | 2010-12-07 | 2010-12-07 | Enhanced hub of wind generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201874759U true CN201874759U (en) | 2011-06-22 |
Family
ID=44162677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206440229U Expired - Fee Related CN201874759U (en) | 2010-12-07 | 2010-12-07 | Enhanced hub of wind generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201874759U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506166A (en) * | 2011-11-03 | 2012-06-20 | 长春时代机电新技术有限公司 | Speed regulating method for pump wheel of hydraulic coupler |
| CN111502923A (en) * | 2020-04-27 | 2020-08-07 | 三一重能有限公司 | Wind power transmission assembly and wind generating set |
-
2010
- 2010-12-07 CN CN2010206440229U patent/CN201874759U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506166A (en) * | 2011-11-03 | 2012-06-20 | 长春时代机电新技术有限公司 | Speed regulating method for pump wheel of hydraulic coupler |
| CN102506166B (en) * | 2011-11-03 | 2012-11-14 | 长春时代机电新技术有限公司 | Speed regulating method for pump wheel of hydraulic coupler |
| CN111502923A (en) * | 2020-04-27 | 2020-08-07 | 三一重能有限公司 | Wind power transmission assembly and wind generating set |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENYANG YUANDA TECHNOLOGY ELECTRICAL CO., LTD. Free format text: FORMER OWNER: SHENYANG YUANDA MECHANICAL + ELECTRICAL EQUIPMENT CO., LTD. Effective date: 20120619 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 110023 SHENYANG, LIAONING PROVINCE TO: 110027 SHENYANG, LIAONING PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120619 Address after: 110027 No. sixteen, 6 street, Shenyang economic and Technological Development Zone, Liaoning, China Patentee after: SHENYANG YUANDA TECHNOLOGY ELECTRIC WORKS CO., LTD. Address before: 110023 No. 22, thirteen street, economic and Technological Development Zone, Liaoning, Shenyang Patentee before: Shenyang Yuanda Machinery & Electronic Equipment Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110622 Termination date: 20171207 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |