CN102072097B - Built-in large double-stator permanent magnet direct-driven wind power generator - Google Patents

Built-in large double-stator permanent magnet direct-driven wind power generator Download PDF

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Publication number
CN102072097B
CN102072097B CN2011100079861A CN201110007986A CN102072097B CN 102072097 B CN102072097 B CN 102072097B CN 2011100079861 A CN2011100079861 A CN 2011100079861A CN 201110007986 A CN201110007986 A CN 201110007986A CN 102072097 B CN102072097 B CN 102072097B
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China
Prior art keywords
wheel hub
bearing
stator
rotor
permanent magnet
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CN2011100079861A
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CN102072097A (en
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肖珊彩
施文江
吴小锋
郭靖
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Guodian United Power Technology Co Ltd
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Guodian United Power Technology Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction

Abstract

The invention relates to a built-in large double-stator permanent magnet direct-driven wind power generator, which comprises a wheel hub consisting of a wheel hub front half part and a wheel hub rear half part; one end of a motor rotor is fixed on the wheel hub front half part; the wheel hub is supported on a hollow shaft through a front bearing and a rear bearing; the front bearing is arranged and compacted at the front part of the hollow shaft by a front bearing locking nut and a front shaft sleeve are; the front end of the inner ring of the rear bearing is fastened on the hollow shaft by a locking nut and a rear shaft sleeve; a bearing mounting flange of the wheel hub is provided with a variable-blade bearing through a circle of bolts; a blade is arranged on the inner ring of the variable-blade bearing; a front bearing cover is arranged on the front end face of a bearing pedestal of the wheel hub front half part; a rear bearing cover is fastened on the end face of a rear bearing pedestal of the wheel hub rear half part; an inner stator and an outer stator of the power generator are fastened on the hollow shaft through a stator bracket; the hollow shaft and a stand are fastened together; the opened end of the outer stator is provided with an outer stator centering bearing; and the opened end of the motor rotor is provided with a rotor centering bearing. The built-in large double-stator permanent magnet direct-driven wind power generator has the advantage that: the whole volume is reduced, so the weight and the cost of the whole device are reduced. The built-in large double-stator permanent magnet direct-driven wind power generator can be widely applied to wind power generation systems.

Description

A kind of built-in large-scale double-stator permanent magnet direct wind-driven generator
Technical field
The present invention relates to a kind of large directly driven permanent magnet wind generating, particularly generator is placed in the inner built-in large-scale double-stator permanent magnet direct wind-driven generator of axial fan hub about a kind of.
Background technique
Along with the increase of power of motor, the volume of motor will be increasing.Especially for slowspeed machine, permanent magnet direct-driving aerogenerator for example, when power was above greater than megawatt or number megawatt, it is quite huge that its volume will become, to such an extent as to can bring very big difficulty to transportation.
Summary of the invention
To the problems referred to above, it is little to the purpose of this invention is to provide a kind of volume, can reduce complete machine weight, and reduces the built-in large-scale double-stator permanent magnet direct wind-driven generator of complete machine cost greatly.
For realizing above-mentioned purpose; The present invention takes following technological scheme: a kind of built-in large-scale double-stator permanent magnet direct wind-driven generator; It is characterized in that: it comprises the wheel hub of the preceding later half composition of half-sum wheel hub of wheel hub; Rotor one end is fixed on the said wheel hub preceding half, and said wheel hub is supported on the hollow shaft through fore bearing, rear bearing, and said fore bearing relies on fore bearing locking nut and front shaft sleeve to install and also is pressed in said hollow shaft front portion; The ring front end is fastened on the said hollow shaft with locking nut and rear axle housing in the said rear bearing; Through a circle bolt pitch variable bearings is installed on the Bearing Installation flange of said wheel hub, mounting blades on the said change slurry bearing inner ring; On half the bearing support front-end face front bearing retainer is installed before the said wheel hub, rear bearing cover is fastened on the later half rear bearing block end face of said wheel hub; Generator inner stator, external stator are anchored on the said hollow shaft through stator support, and said hollow shaft and frame tighten together; Said external stator open end is provided with the external stator alignment bearing, and said rotor open end is provided with the rotor alignment bearing.
Said external stator alignment bearing comprises meront, meront mounting screw, rotor, rotor mounting screw and roller; Said meront is installed on the said stator support by said meront mounting screw, and said rotor is installed in before the said wheel hub on half by said rotor mounting screw; Be provided with said roller between said meront and the said rotor.
All be processed with seam between half between said meront and the said stator support and before said rotor and the said wheel hub.
Said rotor alignment bearing comprises another rotor, another rotor mounting screw, another meront and another meront mounting screw; Said another rotor is fastening through seam and said rotor end by said another rotor mounting screw, and said another meront is fastened on the said stator support through seam by said another meront mounting screw.
Said built-in large-scale double-stator permanent magnet direct wind-driven generator adopts double-stator permanent magnet is directly driven the inner structure of wheel hub that generator places blower fan.
Said wheel hub adopts vertical centering control to divide in the face of separation structure.
The present invention is owing to take above technological scheme, and it has the following advantages: 1, the present invention is placed in axial fan hub inside owing to adopting with generator, thereby has reduced the volume of complete machine, and greatly reduces the weight of complete machine, also greatly reduces the cost of complete machine simultaneously.2, motor of the present invention adopts double-stator structure, the motor output power of unit volume is increased, thereby reduce motor volume and weight, has both reduced cost, has made things convenient for transportation again.3, the present invention adopts the diameter of double-stator permanent magnet direct driving motor and volume ratio little with capacity list stator motor, thereby can realize being placed on axial fan hub inside, unites two into one motor and wheel hub, with weight that reduces wind-driven generator greatly and cost.The present invention can be widely used in the wind-power generating system.
Description of drawings
Fig. 1 is an overall structure scheme of installation of the present invention;
Fig. 2 is an external stator alignment bearing scheme of installation of the present invention;
Fig. 3 is a rotor alignment bearing scheme of installation of the present invention.
Embodiment
Carry out detailed description below in conjunction with accompanying drawing and embodiment to of the present invention.
As shown in Figure 1; The present invention adopts double-stator permanent magnet is directly driven the inner structural type of wheel hub that generator places blower fan, and it comprises before the wheel hub half 1, wheel hub is later half 2, rotor 3, fore bearing 4, rear bearing 5, hollow shaft 6, fore bearing locking nut 7, front shaft sleeve 8, locking nut 9, rear axle housing 10, become slurry bearing 11, blade 12, front bearing retainer 13, rear bearing cover 14, inner stator 15, external stator 16, stator support 17, frame 18, external stator alignment bearing 19 and rotor alignment bearing 20.
Adopt vertical centering control to divide by half 1 wheel hub formed with wheel hub later half 2 before the wheel hub in the face of separation structure, before the wheel hub partly 1 and wheel hub later half 2 between adopt flange, seam and bolt to be connected, to make things convenient for the installation of generator.Rotor 3 one ends are fixed on the wheel hub preceding half 1, and are installed together with wheel hub.Wheel hub is supported on the hollow shaft 6 through fore bearing 4, rear bearing 5, and fore bearing 4 relies on fore bearing locking nut 7 and front shaft sleeve 8 to install and be pressed in hollow shaft 6 front portions; The ring front end is fastened on the hollow shaft 6 with locking nut 9 and rear axle housing 10 in the rear bearing 5.Through a circle bolt pitch variable bearings 11 is installed on the Bearing Installation flange of wheel hub, ring is gone up and is passed through special-purpose bolt mounting blades 12 in the change slurry bearing 11.Before wheel hub, through bolt front bearing retainer 13 is installed on half 1 the bearing support front-end face; Rear bearing cover 14 passes through bolton on the rear bearing block end face of wheel hub later half 2; The thrust that wheel hub is suffered is passed on the outer shroud of rear bearing 5, the interior ring, and the end thrust of wheel hub is mainly born by rear bearing 5.Generator inner stator 15, external stator 16 are anchored on the hollow shaft 6 through stator support 17 usefulness flanges and seam, and hollow shaft 6 and frame 18 are in the same place with bolton through flange between the two.Rotor 3 possibly will produce distortion with inner stator 15, external stator 16 owing to the change of stress phase at run duration, and this distortion will influence all even stable of power generator air gap.For this reason, external stator 16 open ends are provided with external stator alignment bearing 19, are provided with rotor alignment bearing 20 in rotor 3 open ends, and are constant to guarantee the power generator air gap all-the-time stable.
As shown in Figure 2; External stator alignment bearing 19 still can guarantee that for external stator 16 open ends it is strict concentric with rotor 3 under the situation that its structure slightly is out of shape, and it comprises meront 21, meront mounting screw 22, rotor 23, rotor mounting screw 24 and roller 25.Meront 21 is installed on the stator support 17 by meront mounting screw 22.Rotor 23 is installed in before the wheel hub on half 1 by rotor mounting screw 24.All be processed with seam between half 1 between meront 21 and stator support 17 and before rotor 23 and the wheel hub, in order to guarantee the concentric all the time of this motor external stator open end and the forward and backward bearing of main shaft.Between meront 21 and rotor 23, be provided with roller 25.
As shown in Figure 3; Rotor alignment bearing 20 still can guarantee that for rotor 3 open ends itself and stator are strict concentric under the situation that its structure slightly is out of shape, and it comprises rotor 26, another rotor mounting screw 27, meront 28 and another meront mounting screw 29.Rotor 26 is fastening through seam and rotor 3 ends by rotor mounting screw 27.Meront 28 is fastened on the stator support 17 through seam by meront mounting screw 29.So just can guarantee that rotor 3 ends are concentric with generator unit stator all the time.
The foregoing description only is used to explain the present invention, and wherein the structure of each parts, Placement, position etc. all are to change to some extent.Every equivalents of on the basis of technological scheme of the present invention, carrying out and improved design all should not got rid of outside protection scope of the present invention.

Claims (9)

1. built-in large-scale double-stator permanent magnet direct wind-driven generator; It is characterized in that: it comprises the wheel hub of the preceding later half composition of half-sum wheel hub of wheel hub; Rotor one end is fixed on the said wheel hub preceding half; Said wheel hub is supported on the hollow shaft through fore bearing, rear bearing, and it is anterior that said fore bearing relies on fore bearing locking nut and front shaft sleeve to install and be pressed in said hollow shaft; The ring front end is fastened on the said hollow shaft with locking nut and rear axle housing in the said rear bearing; Through a circle bolt pitch variable bearings is installed on the Bearing Installation flange of said wheel hub, mounting blades on the said change slurry bearing inner ring; On half the bearing support front-end face front bearing retainer is installed before the said wheel hub, rear bearing cover is fastened on the later half rear bearing block end face of said wheel hub; Generator inner stator, external stator are anchored on the said hollow shaft through stator support, and said hollow shaft and frame tighten together; Said external stator open end is provided with the external stator alignment bearing, and said rotor open end is provided with the rotor alignment bearing.
2. a kind of built-in large-scale double-stator permanent magnet direct wind-driven generator as claimed in claim 1, it is characterized in that: said external stator alignment bearing comprises meront, meront mounting screw, rotor, rotor mounting screw and roller; Said meront is installed on the said stator support by said meront mounting screw, and said rotor is installed in before the said wheel hub on half by said rotor mounting screw; Be provided with said roller between said meront and the said rotor.
3. a kind of built-in large-scale double-stator permanent magnet direct wind-driven generator as claimed in claim 2 is characterized in that: all be processed with seam between half between said meront and the said stator support and before said rotor and the said wheel hub.
4. like claim 1 or 2 or 3 described a kind of built-in large-scale double-stator permanent magnet direct wind-driven generators, it is characterized in that: said rotor alignment bearing comprises another rotor, another rotor mounting screw, another meront and another meront mounting screw; Said another rotor is fastening through seam and said rotor end by said another rotor mounting screw, and said another meront is fastened on the said stator support through seam by said another meront mounting screw.
5. like claim 1 or 2 or 3 described a kind of built-in large-scale double-stator permanent magnet direct wind-driven generators, it is characterized in that: said built-in large-scale double-stator permanent magnet direct wind-driven generator adopts double-stator permanent magnet is directly driven the inner structure of wheel hub that generator places blower fan.
6. a kind of built-in large-scale double-stator permanent magnet direct wind-driven generator as claimed in claim 4 is characterized in that: said built-in large-scale double-stator permanent magnet direct wind-driven generator adopts double-stator permanent magnet is directly driven the inner structure of wheel hub that generator places blower fan.
7. like claim 1 or 2 or 3 or 6 described a kind of built-in large-scale double-stator permanent magnet direct wind-driven generators, it is characterized in that: said wheel hub adopts vertical centering control to divide in the face of separation structure.
8. a kind of built-in large-scale double-stator permanent magnet direct wind-driven generator as claimed in claim 4 is characterized in that: said wheel hub adopts vertical centering control to divide in the face of separation structure.
9. a kind of built-in large-scale double-stator permanent magnet direct wind-driven generator as claimed in claim 5 is characterized in that: said wheel hub adopts vertical centering control to divide in the face of separation structure.
CN2011100079861A 2011-01-14 2011-01-14 Built-in large double-stator permanent magnet direct-driven wind power generator Active CN102072097B (en)

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Application Number Priority Date Filing Date Title
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CN102072097B true CN102072097B (en) 2012-08-08

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102723828B (en) * 2012-06-29 2013-11-20 乐山东风汽车电器有限公司 Portable permanent-magnet direct-drive double-stator wind power generator
CN103023244A (en) * 2012-12-26 2013-04-03 国电联合动力技术有限公司 Built-in double-stator switch magnetoresistance wind power generator and set system thereof
CN103161678B (en) * 2013-04-11 2015-07-15 国电联合动力技术有限公司 Built-in large-scale superconduction direct drive wind generating set

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Publication number Priority date Publication date Assignee Title
CN201113670Y (en) * 2007-10-25 2008-09-10 新疆金风科技股份有限公司 Double stator semi-direct drive type permanent magnetism synchronous wind power generator
JP2010207046A (en) * 2009-03-06 2010-09-16 Nisca Corp Generator and power generation system with the same
CN101917101A (en) * 2010-08-06 2010-12-15 国电联合动力技术有限公司 Double-stator direct-drive permanent magnet wind powered generator
CN201972854U (en) * 2011-01-14 2011-09-14 国电联合动力技术有限公司 Built-in large double-stator permanent magnet direct-drive wind driven generator

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