CN102121457A - Duplex bearing direct-drive wind generating set with bending moment independently bearing dead shaft - Google Patents
Duplex bearing direct-drive wind generating set with bending moment independently bearing dead shaft Download PDFInfo
- Publication number
- CN102121457A CN102121457A CN2011100590062A CN201110059006A CN102121457A CN 102121457 A CN102121457 A CN 102121457A CN 2011100590062 A CN2011100590062 A CN 2011100590062A CN 201110059006 A CN201110059006 A CN 201110059006A CN 102121457 A CN102121457 A CN 102121457A
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- Prior art keywords
- bearing
- dead axle
- moving axis
- wheel hub
- shaft
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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
Abstract
The invention discloses a duplex bearing direct-drive wind generating set with a bending moment independently bearing dead shaft, which comprises a rotary bracket, the dead shaft, a movable shaft, a front end cover, a rear end cover, a shell, a stator, a rotor, a rotor supporting element and a hub, wherein the movable shaft is connected on the hub and is sleeved outside the dead shaft; the rear end of the dead shaft is connected on the rotary bracket; the middle part of the dead shaft penetrates through the rear end cover, the shell, the front end cover and the hub; the front end of the dead shaft is extended into the hub; a bearing supporting seat is arranged in the hub; at least one bearing I is arranged between the bearing supporting seat and the dead shaft; and at least one bearing II is arranged between the movable shaft and the dead shaft. The wind generating set has the advantages of reducing the loading intensity of the movable shaft to a great extent, saving the cost of the generating set and effectively improving the reliability of the movable shaft and the dead shaft so as to make the operation of the wind generating set more reliable.
Description
Technical field
The present invention relates to a kind of double-bearing direct drive wind power generation unit of dead axle independent bearing moment of flexure, belong to technical field of wind power generation.
Background technique
Traditional direct wind-driven generator group major part all adopts the dead axle cantilever structure, and wherein, the dead axle rear end is fastened on the rotary support of unit, and front end is lived moving axis by bearings, and moving axis is connected with rotor, and the front end of moving axis follows the wind to take turns and is connected and fixed.The wind energy that is produced by fan blade passes to moving axis by wheel hub, drives the generator amature rotation by moving axis.Under this kind structure, moving axis has been born all load of wind wheel, and then passes to dead axle by bearing, and load distribution is unreasonable.This has just caused the moving axis of direct wind-driven generator should bear the moment of torsion of wind wheel, bears very big moment of flexure again.Therefore the reliability of moving axis, dead axle is not high, and stock utilization is low
Summary of the invention
For solving above technical deficiency, the invention provides a kind of double-bearing direct drive wind power generation unit of dead axle independent bearing moment of flexure, its reasonable distribution dead axle load, effectively improved the reliability of moving axis, dead axle.
The present invention is achieved by the following measures:
The double-bearing direct drive wind power generation unit of a kind of dead axle independent bearing moment of flexure of the present invention comprises revolution
Support, dead axle, moving axis, front cover, rear end cover, casing, stator, rotor, rotor supports element and wheel hub, moving axis is connected on the wheel hub and is enclosed within outside the dead axle, the dead axle rear end is connected on the rotary support, rear end cover, casing, front cover and wheel hub are run through in described dead axle middle part, the dead axle front end extends in the wheel hub, be provided with bearing support block in the described wheel hub, be provided with a bearing I between bearing support block and the dead axle at least, be provided with a bearing II between described moving axis and the dead axle at least.
Preferably, above-mentioned moving axis front end is connected on the wheel hub, and the moving axis rear end is passed front cover and extended in the casing, and described bearing II is arranged on the moving axis posterior medial, and the moving axis rear outside connects the rotor supports element, and the rotor supports element connects rotor.
Unit transportation for convenience and installing, above-mentioned moving axis upper edge circumference evenly are provided with end can withstand on installation strut on the dead axle.
Be provided with seal arrangement between above-mentioned moving axis and the front cover, can prevent effectively that impurity from entering in the casing.
For aligning flexibly, above-mentioned bearing I adopts selfaligning bearing.
The invention has the beneficial effects as follows:
Moment of flexure and other direction load that wind wheel produces all have been directly passed to dead axle by the bearing that is provided with in the wheel hub, moving axis only bears moment of torsion, reduced moving axis load to a great extent, make the load distribution on the dead axle more reasonable simultaneously, effectively improved the stock utilization of moving axis and dead axle, saved the cost of generator set, effectively improved the reliability of moving axis, dead axle, made the generator set work more reliable.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure: 1 blade, 2 pitch-controlled systems, 3 wheel hubs, 4 bearing I, 5 moving axis, 6 front covers, 7 casings, 8 stators, 9 rear end covers, 10 dead axles, 11 rotary supports, 12 bearing II, 13 rotor supports elements, 14 yaw systems, 15 tower tubes, 16 install strut, 17 seal arrangements, 18 bearing support blocks.
Embodiment
As shown in Figure 1, a kind of dead axle 10 independent bearing moment of flexure double-bearing direct driving type aerogenerators of the present invention comprise parts such as blade 1, pitch-controlled system 2, wheel hub 3, moving axis 5, front cover 6, casing 7, stator 8, rear end cover 9, stationary axle, rotary support 11, rotor supports element 13, yaw system 14, tower tube 15.Front cover 6, casing 7, rear end cover 9 three parts are formed generator casing, and stator 8 is fixedly connected on the generator casing, and generator casing is fixedly connected on the dead axle 10.Rotary support 11 is connected on the tower tube 15 by yaw system 14.Generator set is regulated the power of the assembling unit by pitch-controlled system 2.
Moving axis 5 is connected on the wheel hub 3 and is enclosed within outside the dead axle 10, dead axle 10 is cantilever position and distributes, dead axle 10 rear ends are connected on the rotary support 11, rear end cover 9, casing 7, front cover 6 and wheel hub 3 are run through in dead axle 10 middle parts, dead axle 10 front ends extend in the wheel hub 3, be provided with bearing support block 18 in the wheel hub 3, be provided with a bearing I 4 between bearing support block 18 and the dead axle 10 at least, dead axle 10 directly carries wheel hub 3 by bearing I 4.At least be provided with a bearing II 12 between moving axis 5 and the dead axle 10.
Preferably, moving axis 5 front ends are connected on the wheel hub 3, and moving axis 5 rear ends are passed front cover 6 and extended in the casing 7, and bearing II 12 is arranged on moving axis 5 posterior medials, and moving axis 5 rear outside connect rotor supports element 13, and rotor supports element 13 connects rotor.Wheel hub 3 shells directly are connected with moving axis 5, thereby transmit the wind wheel moment of torsion.Moving axis 5 pivots around dead axle 10 with wheel hub 3, and moving axis 5 rotations drive the rotor rotation and make the generating of generator proper functioning.
Be provided with seal arrangement 17 between moving axis 5 and the front end of shield 6, can prevent effectively that impurity from entering in the casing 7.
Vertically evenly be provided with on the moving axis 5 strut 16 is installed, in unit transportation and installation process, directly withstand on the dead axle 10 after installation strut 16 passes moving axis 5, prevent that moving axis 5 produces relative movement with respect to dead axle 10 in transportation and the installation process along circumference.Bearing I 4 adopts selfaligning bearing, makes things convenient for aligning.
The foregoing description is described to be in order to specify this patent; though describe by specific term in the literary composition; but can not limit the protection domain of this patent with this; being familiar with the personage of this technical field can be after the spirit of understanding this patent and principle change or revises it and reach equivalent purpose; and this equivalence change and modification all should be covered by the claim scope and define in the category.
Claims (5)
1. the double-bearing direct drive wind power generation unit of a dead axle independent bearing moment of flexure, comprise rotary support, dead axle, moving axis, front cover, rear end cover, casing, stator, rotor, rotor supports element and wheel hub, moving axis is connected on the wheel hub and is enclosed within outside the dead axle, the dead axle rear end is connected on the rotary support, it is characterized in that: rear end cover is run through at described dead axle middle part, casing, front cover and wheel hub, the dead axle front end extends in the wheel hub, be provided with bearing support block in the described wheel hub, at least be provided with a bearing I between bearing support block and the dead axle, be provided with a bearing II between described moving axis and the dead axle at least.
2. according to the double-bearing direct drive wind power generation unit of the described dead axle independent bearing of claim 1 moment of flexure, it is characterized in that: described moving axis front end is connected on the wheel hub, the moving axis rear end is passed front cover and is extended in the casing, described bearing II is arranged on the moving axis posterior medial, the moving axis rear outside connects the rotor supports element, and the rotor supports element connects rotor.
3. according to the double-bearing direct drive wind power generation unit of the described dead axle independent bearing of claim 1 moment of flexure, it is characterized in that: vertically be provided with end on the described moving axis and can withstand on installation strut on the dead axle.
4. according to the double-bearing direct drive wind power generation unit of the described dead axle independent bearing of claim 1 moment of flexure, it is characterized in that: be provided with seal arrangement between described moving axis and the front cover.
5. according to the double-bearing direct drive wind power generation unit of the described dead axle independent bearing of claim 1 moment of flexure, it is characterized in that: described bearing I adopts selfaligning bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100590062A CN102121457A (en) | 2011-03-12 | 2011-03-12 | Duplex bearing direct-drive wind generating set with bending moment independently bearing dead shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100590062A CN102121457A (en) | 2011-03-12 | 2011-03-12 | Duplex bearing direct-drive wind generating set with bending moment independently bearing dead shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102121457A true CN102121457A (en) | 2011-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100590062A Pending CN102121457A (en) | 2011-03-12 | 2011-03-12 | Duplex bearing direct-drive wind generating set with bending moment independently bearing dead shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102121457A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001059296A1 (en) * | 2000-02-10 | 2001-08-16 | Abb Ab | Power generating device |
| CN1649239A (en) * | 2004-01-19 | 2005-08-03 | 新疆金风科技股份有限公司 | MW grade direct driving permanent magnet outer rotor synchronous motor |
| EP2063114A1 (en) * | 2007-11-26 | 2009-05-27 | Siemens Aktiengesellschaft | Wind turbine |
| CN202001184U (en) * | 2011-03-12 | 2011-10-05 | 华小平 | Double-bearing direct-drive wind generating set with dead axle independently bearing bending moment |
-
2011
- 2011-03-12 CN CN2011100590062A patent/CN102121457A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001059296A1 (en) * | 2000-02-10 | 2001-08-16 | Abb Ab | Power generating device |
| CN1649239A (en) * | 2004-01-19 | 2005-08-03 | 新疆金风科技股份有限公司 | MW grade direct driving permanent magnet outer rotor synchronous motor |
| EP2063114A1 (en) * | 2007-11-26 | 2009-05-27 | Siemens Aktiengesellschaft | Wind turbine |
| CN202001184U (en) * | 2011-03-12 | 2011-10-05 | 华小平 | Double-bearing direct-drive wind generating set with dead axle independently bearing bending moment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110713 |