CN101789644B - Direct-drive permanent magnet wind power generator - Google Patents

Direct-drive permanent magnet wind power generator Download PDF

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Publication number
CN101789644B
CN101789644B CN2009103098034A CN200910309803A CN101789644B CN 101789644 B CN101789644 B CN 101789644B CN 2009103098034 A CN2009103098034 A CN 2009103098034A CN 200910309803 A CN200910309803 A CN 200910309803A CN 101789644 B CN101789644 B CN 101789644B
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China
Prior art keywords
ring
baffle plate
base bearing
axle
inner ring
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CN2009103098034A
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Chinese (zh)
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CN101789644A (en
Inventor
陈习坤
尹耀安
贺建湘
龙辛
曾毅
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XEMC Windpower Co Ltd
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XEMC Windpower Co Ltd
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Priority to CN2009103098034A priority Critical patent/CN101789644B/en
Publication of CN101789644A publication Critical patent/CN101789644A/en
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Publication of CN101789644B publication Critical patent/CN101789644B/en
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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

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  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

A direct-drive permanent magnet wind power generator comprises a mandrel, the upper small end of the mandrel is an annular step, a main bearing inner ring is mounted on the upper small end annular step of the mandrel, one end surface of the main bearing inner ring is contacted with the step end surface of the mandrel, the other end surface of the main bearing inner ring is contacted with a baffle II, the baffle II is fastened on the mandrel end surface, the upper and lower ends of the main bearing outer ring are respectively connected with a baffle I and a connecting flange, the upper end surface of the baffle I is connected with a brake ring, the connecting flange is provided with an oblique wedge, a seal ring II is arranged between the flange plate and the mandrel, a press plate II pressed on the seal ring II is fastened on the connecting flange plate, a seal ring I is arranged between the baffle I and the baffle II, a press plate I pressed on the seal ring I is fastened on the baffle II, at least two grease inlet holes and grease outlet holes II are radially machined on middle and lower end positions of the main bearing inner ring, and at least two grease outlet holes I are radially machined on the baffle II. The direct-drive permanent magnet wind power generator has the advantages that the main bearing is light, the air gap between the stator and the rotor can be adjusted conveniently, and the seal ring is replaceable.

Description

A kind of direct-drive permanent magnet wind power generator
Technical field
The present invention relates to a kind of wind-driven generator, especially relate to a kind of direct-drive permanent magnet wind power generator.
Background technology
What existing direct-drive permanent magnet wind power generator base bearing adopted usually is the bearing that inner ring has through hole; Base bearing inner ring end face is connected with generator axle end face through bolt; Because of needing to arrange a circle bolt hole on the base bearing inner ring, like this, will inevitably increase the thickness of inner ring; Because inner ring all adopts special bearing steel to process, so its manufacturing cost is than higher; In addition, there is electromagnet pull in direct-drive permanent magnet wind power generator all the time in the process of stator and rotor assembling; Be difficult to guarantee that the air gap between generator unit stator and the rotor is even; Therefore, need transfer loose bolt to adjust air gap repeatedly, like this; Can make that not only the wind-driven generator efficiency of assembling is low, and be unfavorable for the batch process of wind-driven generator; In addition, because generator axle and base bearing end face connect into an integral body, therefore; Can't change the sealing ring of base bearing; When there is the problem that is worn and wears out in sealing ring, tends to make the greasy property of bearing to reduce, thereby influence the useful life of blower fan.
Summary of the invention
The objective of the invention is to overcome the above-mentioned defective that prior art exists, provide a kind of base bearing in light weight, the air gap between stator and the rotor is easy to adjust, the direct-drive permanent magnet wind power generator that sealing ring can be changed.
Technical scheme of the present invention is: it comprises stator, rotor, base bearing outer ring, base bearing inner ring and axle, braking ring, and said stator and stator support are connected; Big end in axle bottom and stator support are connected, and rotor and rotor supports are connected, and rotor supports links to each other with mounting flange; Axle top small end is an annular stepped shape, and the base bearing inner ring in strap bolt hole is not installed on the annular stepped of axle top small end, and base bearing inner ring one end face contacts with the axle step end face; The other end of base bearing inner ring contacts with baffle plate II; Baffle plate II is anchored on the axle end face, and upper end, base bearing outer ring, lower end link to each other with mounting flange with baffle plate I respectively, and the upper surface of baffle plate I links to each other with braking ring; Base bearing outer ring, braking ring, baffle plate I and mounting flange are one through bolted; The wedge that is used to adjust air gap between stator and the rotor is installed on the mounting flange, sealing ring II is installed between mounting flange and the axle, the pressure plates II that is pressed on the sealing ring II is anchored on the mounting flange; Between baffle plate I and the baffle plate II sealing ring I is installed; The pressure plates I that is pressed on the sealing ring I is anchored on the baffle plate II, has at least two fat holes and grease-outlet hole II at the centre and the lower end position of base bearing inner ring along the axle radial direction, and baffle plate II radial position has at least two grease-outlet hole I.
Effect of the present invention:
1) need not arrange a circle bolt hole on its base bearing inner ring, like this, help alleviating the weight of base bearing, reduce manufacturing cost;
2) can make things convenient for and adjust the air gap between generator unit stator and the rotor fast through being located at wedge on the mounting flange;
3) do not pushed down owing to sealing ring, so sealing ring can be changed by other parts;
4) grease-outlet hole I is located on the baffle plate II, and like this, the stress that helps reducing the axle small end is concentrated.
Description of drawings
Fig. 1 is the overall structure sketch map of the embodiment of the invention;
Fig. 2 is a partial structurtes enlarged drawing embodiment illustrated in fig. 1.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
With reference to accompanying drawing, present embodiment comprises stator 2, rotor 16, base bearing outer ring 5, base bearing inner ring 20 and axle 19, braking ring 8; Said stator 2 is connected with stator support 1, and big end in axle 19 bottoms and stator support 1 are connected, and rotor 16 is connected with rotor supports 15; Rotor supports 15 links to each other with mounting flange 21 through bolt III3; Axle 19 top small ends are annular stepped shape, and the base bearing inner ring 20 in strap bolt hole is not installed on the annular stepped of axle 19 top small ends, and base bearing inner ring 20 1 end faces contact with axle 19 step end faces; The other end of base bearing inner ring 20 contacts with baffle plate II 22; Baffle plate II 22 is anchored on axle 19 end faces through bolt I 9, thereby helps 20 clampings of base bearing inner ring are prevented that it from axial motion taking place, and 5 top and bottom, base bearing outer ring link to each other with baffle plate I 6 and mounting flange 21 respectively; The upper end of baffle plate I 6 links to each other with braking ring 8; Base bearing outer ring 5, braking ring 8, baffle plate I 6 and mounting flange 21 fasten as one through bolt II 7, and the wedge 4 that is used to adjust air gap between stator and the rotor is installed on the mounting flange 21, between mounting flange 21 and the axle 19 sealing ring II 17 are installed; The pressure plates II 18 that is pressed on the sealing ring II17 is anchored on the mounting flange 21; Between baffle plate I 6 and the baffle plate II 22 sealing ring I13 is installed, the pressure plates I 14 that is pressed on the sealing ring I13 is anchored on the baffle plate II 22, has fat hole 11 and grease-outlet hole II 10 in the centre of base bearing inner ring 20 and lower end position along the axle radial direction; Baffle plate II 22 radial positions have grease-outlet hole I 12, and fat hole 11, grease-outlet hole II10 and grease-outlet hole I 12 are along circumferentially each evenly is provided with 6.
Because sealing ring is not blocked by other structures, so can change.
More than be one embodiment of the present invention, a preferred example.The scope that patent application of the present invention is asked for protection has more than and is limited to said execution mode.All technical schemes with the present embodiment equivalence all belong to protection scope of the present invention.

Claims (1)

1. a direct-drive permanent magnet wind power generator comprises stator, rotor, base bearing outer ring, base bearing inner ring and axle, braking ring; Said stator and stator support are connected, and big end in axle bottom and stator support are connected, and rotor and rotor supports are connected; Rotor supports links to each other with mounting flange, it is characterized in that, axle top small end is an annular stepped shape; The base bearing inner ring in strap bolt hole is not installed on the annular stepped of axle top small end, and base bearing inner ring one end face contacts with the axle step end face, and the other end of base bearing inner ring contacts with the baffle plate II; The baffle plate II is anchored on the axle end face; Upper end, base bearing outer ring, lower end link to each other with mounting flange with the baffle plate I respectively, and baffle plate I upper surface links to each other with braking ring, and base bearing outer ring, braking ring, baffle plate I and mounting flange are one through bolted; The wedge that is used to adjust air gap between stator and the rotor is installed on the mounting flange; The sealing ring II is installed between mounting flange and the axle, and the pressing plate II that is pressed on the sealing ring II is anchored on the mounting flange, between baffle plate I and the baffle plate II sealing ring I is installed; The pressing plate I that is pressed on the sealing ring I is anchored on the baffle plate II; Centre and lower end position at the base bearing inner ring have fat hole and grease-outlet hole II along the axle radial direction, and the radial position of baffle plate II has the grease-outlet hole I, and fat hole and grease-outlet hole II and grease-outlet hole I are along circumferentially each evenly is provided with 6.
CN2009103098034A 2009-11-16 2009-11-16 Direct-drive permanent magnet wind power generator Active CN101789644B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009103098034A CN101789644B (en) 2009-11-16 2009-11-16 Direct-drive permanent magnet wind power generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009103098034A CN101789644B (en) 2009-11-16 2009-11-16 Direct-drive permanent magnet wind power generator

Publications (2)

Publication Number Publication Date
CN101789644A CN101789644A (en) 2010-07-28
CN101789644B true CN101789644B (en) 2012-05-30

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102392798A (en) * 2011-12-07 2012-03-28 湘电风能有限公司 Direct-drive wind driven generator structure
CN104600886B (en) * 2015-01-27 2017-01-25 新疆金风科技股份有限公司 Direct drive permanent magnet wind generator, direct drive permanent magnet wind generator system and stator of direct drive permanent magnet wind generator
CN105226848A (en) * 2015-09-29 2016-01-06 北京金风科创风电设备有限公司 generator and wind generating set
CN108566041A (en) * 2018-01-31 2018-09-21 湖北环电磁装备工程技术有限公司 The veneer reeling machine that no frame permanent magnet synchronous motor directly drives

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