CN109973313A - A kind of direct-drive permanent magnet wind power generator of no main shaft - Google Patents
A kind of direct-drive permanent magnet wind power generator of no main shaft Download PDFInfo
- Publication number
- CN109973313A CN109973313A CN201711441881.0A CN201711441881A CN109973313A CN 109973313 A CN109973313 A CN 109973313A CN 201711441881 A CN201711441881 A CN 201711441881A CN 109973313 A CN109973313 A CN 109973313A
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- China
- Prior art keywords
- bearing
- direct
- main shaft
- cylindrical roller
- permanent magnet
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/70—Bearing or lubricating arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/20—Wind motors characterised by the driven apparatus
- F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention discloses a kind of direct-drive permanent magnet wind power generators of no main shaft, including shafting system, the shafting system includes three-row cylindrical roller turntable bearing, the bearing outer ring of the three-row cylindrical roller turntable bearing is connect with the stator of the engine, and the bearing inner race of the three-row cylindrical roller turntable bearing is connect with the rotor of the generator.The direct-drive permanent magnet wind power generator structure of no main shaft of the present invention is simple, light-weight, at low cost, high reliablity, good manufacturability.
Description
Technical field
The present invention relates to technical field of wind power, particularly relate to a kind of direct-drive permanent magnet wind power generator of no main shaft.
Background technique
With the technological progress of wind power industry, direct-drive permanent-magnetism generator is more and more general in wind power industry application
And.Traditional shafting structure is generally main shaft, bearing block adds the double of two single-row tapered roller bearings face-to-face (or back-to-back)
Bearing arrangement (see Fig. 1 a, Fig. 1 b), main shaft, bearing block add a double row tapered roller bearing and a single row roller bearing
Dual bearing structure (see Fig. 2 a, Fig. 2 b), main shaft, bearing block add the single bearing structure of a double row tapered roller bearing (see figure
3a, Fig. 3 b).It is held by two single-row tapered roller bearings or a double row tapered roller bearing face-to-face (or back-to-back)
By the axial force and tilting moment of radial force and positive and negative both direction.
In traditional shafting structure other than having main shaft, bearing block, bearing, there are also retaining ring, end cap, gland, sealing ring, tune
The parts such as whole pad, some even up to ten is several, is used to carry out axial restraint and sealing to bearing, to meet requirement, axis
The cooperation with main shaft, bearing block is held often using interference fit, the side of hot charging is generally used for the elastic conjunction of heavy parts
Method.In addition, this shafting requires that bearing is axially negative clearance, when assembly, needs through apolegamy adjusting pad or with reaching as gland
To requirement, result in that production efficiency is lower, and quality risk is higher.Due to the complexity of design of part, main shaft and bearing block weight compared with
Greatly, cause main screw lift big and higher cost.
Summary of the invention
In view of this, it is an object of the invention to propose a kind of direct-drive permanent magnet wind power generator of no main shaft, for tradition
Shafting design improved, make generator more efficiently, it is reliable, cost and weight are lower.
Based on a kind of above-mentioned purpose direct-drive permanent magnet wind power generator of no main shaft provided by the invention, including shafting system,
The shafting system includes three-row cylindrical roller turntable bearing, the bearing outer ring of the three-row cylindrical roller turntable bearing with it is described
The stator of engine connects, and the bearing inner race of the three-row cylindrical roller turntable bearing is connect with the rotor of the generator.
Preferably, the generator further includes main pedestal, main base mounting flange, rotor mounting flange and stator installation
Flange；The bearing outer ring of the three-row cylindrical roller turntable bearing is connect by the stator mounting flange with the stator, institute
The bearing outer ring for stating three-row cylindrical roller turntable bearing is connect by the main base mounting flange with the main pedestal；Described three
The bearing inner race of line column roller turntable bearing is connect by the rotor mounting flange with the rotor.
Preferably, the bearing outer ring of the three-row cylindrical roller turntable bearing by stator install bolt successively with it is described fixed
Sub- mounting flange, the main base mounting flange connection, the bearing inner race of the three-row cylindrical roller turntable bearing pass through rotor
Installation bolt is successively connect with the wheel hub of the rotor mounting flange and the engine.
Preferably, the inner surface of the rotor attaches magnet steel.
Preferably, the axis and described three positioned at a column roller of the centre of the three-row cylindrical roller turntable bearing arranges circle
The axis of column roller turntable bearing is parallel, for bearing radial force；Positioned at the both sides of the three-row cylindrical roller turntable bearing
The axis of two column rollers is vertical with the axis of the three-row cylindrical roller turntable bearing respectively, for bearing axial force and power of toppling
Square.
Preferably, the generator includes wind wheel assembly, alternator assembly, cabin assembly and tower assembly, the wind
Wheel assembly includes at least three blades and the wheel hub, the alternator assembly include the stator, the rotor and
The shafting system, the cabin assembly include the main pedestal, and the tower assembly includes pylon, ladder and master control system
System.
Preferably, the wind wheel assembly further includes blade pitch device and hubcap.
Preferably, the cabin assembly further includes Yawing mechanism, braking system, cooling system, control system, fire-fighting system
System, wind measuring system and auxiliary system.
From the above it can be seen that the direct-drive permanent magnet wind power generator structure of no main shaft provided by the invention is simple, weight
Amount is light, at low cost, high reliablity, good manufacturability；The weight and cost of entire generator are reduced simultaneously, to reduce wind-force hair
The degree electricity cost of electricity.
Detailed description of the invention
Fig. 1 a is that there are two the direct-drive permanent-magnetism generator knots of the dual bearing structure of aspectant single-row tapered roller bearing for tool
Structure schematic diagram；
Fig. 1 b is the dual bearing structure schematic diagram of two aspectant single-row tapered roller bearings；
Fig. 2 a is the straight of the dual bearing structure with a double row tapered roller bearing and a single row roller bearing
Drive permanent magnet generator structural schematic diagram；
Fig. 2 b is the schematic diagram of the dual bearing structure of a double row tapered roller bearing and a single row roller bearing；
Fig. 3 a is the direct-drive permanent-magnetism electric generator structure schematic diagram of the single bearing structure with a double row tapered roller bearing；
Fig. 3 b is the schematic diagram of the single bearing structure of a double row tapered roller bearing；
Fig. 4 is the structural schematic diagram of direct-drive permanent magnet wind power generator of the embodiment of the present invention without main shaft；
Fig. 5 is the perspective view of three-row cylindrical roller turntable bearing described in the embodiment of the present invention；
Fig. 6 is the side view of three-row cylindrical roller turntable bearing described in the embodiment of the present invention；
Fig. 7 is the scheme of installation of three-row cylindrical roller turntable bearing described in the embodiment of the present invention；
Fig. 8 is the direct-drive permanent magnet wind power generator scheme of installation without main shaft described in the embodiment of the present invention；
Fig. 9 is the unit longitudinal profile of the direct-drive permanent magnet wind power generator without main shaft described in the embodiment of the present invention；
Figure 10 is the complete machine structure schematic diagram of the direct-drive permanent magnet wind power generator without main shaft described in the embodiment of the present invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference
Attached drawing, the present invention is described in more detail.
It should be noted that all statements for using " first " and " second " are for differentiation two in the embodiment of the present invention
The non-equal entity of a same names or non-equal parameter, it is seen that " first " " second " only for the convenience of statement, does not answer
It is interpreted as the restriction to the embodiment of the present invention, subsequent embodiment no longer illustrates this one by one.
Fig. 4 is the structural schematic diagram of direct-drive permanent magnet wind power generator of the embodiment of the present invention without main shaft；Fig. 5 is that the present invention is real
Apply the structural schematic diagram of the example three-row cylindrical roller turntable bearing；Fig. 6 is that three-row cylindrical roller described in the embodiment of the present invention turns
The side view that dish axle is held；Fig. 7 is the scheme of installation of three-row cylindrical roller turntable bearing described in the embodiment of the present invention.The present invention is real
The direct-drive permanent magnet wind power generator that example proposes a kind of no main shaft, including shafting system are applied, the shafting system includes three column cylinders
Roller turntable bearing 1, the bearing outer ring 11 of the three-row cylindrical roller turntable bearing 1 are connect with the stator 2 of the engine, institute
The bearing inner race 12 for stating three-row cylindrical roller turntable bearing 1 is connect with the rotor 3 of the generator.
In another embodiment of the present invention, the generator further includes main pedestal 4, main base mounting flange 5, rotor
Mounting flange 6 and stator mounting flange 7；The bearing outer ring 11 of the three-row cylindrical roller turntable bearing 1 passes through the stator
Mounting flange 7 is connect with the stator 2, and the bearing outer ring 11 of the three-row cylindrical roller turntable bearing 1 passes through the main pedestal
Mounting flange 5 is connect with the main pedestal 4；The bearing inner race 12 of the three-row cylindrical roller turntable bearing 1 passes through the rotor
Mounting flange 6 is connect with the rotor 3.
Preferably, the bearing outer ring 11 of the three-row cylindrical roller turntable bearing 1 by stator install bolt 9 successively with institute
State stator mounting flange 7, the main base mounting flange 5 connects, the bearing inner race 12 of the three-row cylindrical roller turntable bearing 1
Bolt 10 is installed by rotor successively to connect with the wheel hub 8 of the rotor mounting flange 6 and the engine.
Preferably, the inner surface of the rotor 3 attaches magnet steel 13.
Preferably, the axis and described three positioned at a column roller of the centre of the three-row cylindrical roller turntable bearing 1 arranges
The axis of cylindrical roller turntable bearing 1 is parallel, for bearing radial force；Positioned at the two of the three-row cylindrical roller turntable bearing 1
The axis of the two column rollers on side is vertical with the axis of the three-row cylindrical roller turntable bearing 1 respectively, for bear axial force and
Tilting moment.
In a specific embodiment, the model of the three-row cylindrical roller turntable bearing 1
130.90.2245.03LYC。
In another embodiment of the present invention, the direct-drive permanent magnet wind power generator generator include wind wheel assembly 14,
Alternator assembly 15, cabin assembly 16 and tower assembly 17.Wherein, the wind wheel assembly 14 include at least three blades and
The wheel hub 8, the alternator assembly 15 include described in the stator 2, the rotor 3 and the above embodiment of the present invention
Shafting system, the cabin assembly 16 include the main pedestal 4, and the tower assembly 17 includes pylon, ladder and master control system
System.
Preferably, the wind wheel assembly 14 further includes the devices such as blade pitch device and hubcap.
Preferably, the alternator assembly 15 further includes cooling system, braking system, lubricating arrangement etc..
Preferably, the cabin assembly 16 further includes Yawing mechanism, braking system, cooling system, control system, fire-fighting system
System, wind measuring system (such as weather station) and auxiliary system device.
Preferably, the tower assembly 17 includes the pylon of 4-5 section, ladder, helps and (exempt from) and climb the dress such as device, platform, current transformer
It sets.
Structural analysis, the three-row cylindrical roller are carried out by Bladed LOAD FOR and using Ansys finite element software
Turntable bearing 1 can satisfy 20 years life cycle requirements of the generator.Due to there is no main shaft and bearing block and other attachmentes,
Keep structure greatly simplified, reduces main screw lift and cost.Specifically, comparing with 113B2.5Mw generator weight such as following table institute
Show, weight saving about 10500kg.
The comparison of shafting weight
It is with 113B2.5Mw generator Cost comparisons as shown in the table, about 35~400,000 yuan of shafting cost savings.
Shafting Cost comparisons (Wan Yuan)
About save 35~40
Shown in sum up, a kind of direct-drive permanent magnet wind power generator of no main shaft proposed by the present invention is used in shafting system
One three-row cylindrical roller turntable bearing substitution main shaft, bearing block and related accessories, due to there is no main shaft, bearing block and other attached
Part so that the structure of the direct-drive permanent magnet wind power generator is greatly simplified, while reducing the weight and cost of entire generator；?
Hot charging and adjustment clearance are not needed when assembly, greatly improve assembly efficiency；The direct-drive permanent magnet wind power generator structure is simple, weight
Gently, at low cost, high reliablity, good manufacturability；The cost of unit can be significantly reduced, thus reduce the degree electricity of wind-power electricity generation at
This, with good economic efficiency and social benefit contributes for the further genralrlization of wind-power electricity generation.
It should be understood by those ordinary skilled in the art that: the above is only a specific embodiment of the present invention, and
It is not used in the limitation present invention, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done,
It should be included within protection scope of the present invention.
Claims (8)
1. a kind of direct-drive permanent magnet wind power generator of no main shaft, including shafting system, which is characterized in that the shafting system includes
Three-row cylindrical roller turntable bearing, the bearing outer ring of the three-row cylindrical roller turntable bearing and the stator of the engine connect
It connects, the bearing inner race of the three-row cylindrical roller turntable bearing is connect with the rotor of the generator.
2. the direct-drive permanent magnet wind power generator of no main shaft according to claim 1, which is characterized in that the generator also wraps
Include main pedestal, main base mounting flange, rotor mounting flange and stator mounting flange；The three-row cylindrical roller turntable bearing
Bearing outer ring connect with the stator by the stator mounting flange, outside the bearing of the three-row cylindrical roller turntable bearing
Circle is connect by the main base mounting flange with the main pedestal；The bearing inner race of the three-row cylindrical roller turntable bearing is logical
The rotor mounting flange is crossed to connect with the rotor.
3. the direct-drive permanent magnet wind power generator of no main shaft according to claim 2, which is characterized in that the three column cylinder rolling
The bearing outer ring of sub- turntable bearing by stator install bolt successively with the stator mounting flange, the main base mounting flange
Connection, the bearing inner race of the three-row cylindrical roller turntable bearing by rotor installation bolt successively with the rotor mounting flange
And the wheel hub connection of the engine.
4. the direct-drive permanent magnet wind power generator of no main shaft according to claim 1, which is characterized in that the interior table of the rotor
The attached magnet steel of face paste.
5. the direct-drive permanent magnet wind power generator of no main shaft according to claim 1, which is characterized in that be located at the three column circle
The axis of one column roller of the centre of column roller turntable bearing is parallel with the axis of the three-row cylindrical roller turntable bearing, is used for
Bear radial force；Axis positioned at the two column rollers on the both sides of the three-row cylindrical roller turntable bearing is justified with three column respectively
The axis of column roller turntable bearing is vertical, for bearing axial force and tilting moment.
6. the direct-drive permanent magnet wind power generator of no main shaft according to claim 3, which is characterized in that the generator includes
Wind wheel assembly, alternator assembly, cabin assembly and tower assembly, the wind wheel assembly include at least three blades and described
Wheel hub, the alternator assembly includes the stator, the rotor and the shafting system, and the cabin assembly includes
The main pedestal, the tower assembly include pylon, ladder and master control system.
7. the direct-drive permanent magnet wind power generator of no main shaft according to claim 6, which is characterized in that the wind wheel assembly is also
Including blade pitch device and hubcap.
8. the direct-drive permanent magnet wind power generator of no main shaft according to claim 6, which is characterized in that the cabin assembly is also
Including Yawing mechanism, braking system, cooling system, control system, fire-fighting system, wind measuring system and auxiliary system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711441881.0A CN109973313A (en) | 2017-12-27 | 2017-12-27 | A kind of direct-drive permanent magnet wind power generator of no main shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711441881.0A CN109973313A (en) | 2017-12-27 | 2017-12-27 | A kind of direct-drive permanent magnet wind power generator of no main shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109973313A true CN109973313A (en) | 2019-07-05 |
Family
ID=67071448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711441881.0A Withdrawn CN109973313A (en) | 2017-12-27 | 2017-12-27 | A kind of direct-drive permanent magnet wind power generator of no main shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109973313A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110792565A (en) * | 2019-10-17 | 2020-02-14 | 崔平 | Main shaft-free direct-drive generator for wind power generation |
| CN114439903A (en) * | 2021-11-30 | 2022-05-06 | 上海电气风电集团股份有限公司 | Gear box integrated device and wind generating set comprising same |
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| CN102322404A (en) * | 2011-05-31 | 2012-01-18 | 欣达重工股份有限公司 | Direct driving type wind driven generator with double motors |
| CN102394540A (en) * | 2011-07-22 | 2012-03-28 | 广西银河风力发电有限公司 | Uniaxially coupled double-wind driven generator |
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| CN102820728A (en) * | 2011-06-10 | 2012-12-12 | 西门子公司 | Generator for a wind turbine |
| WO2013113487A1 (en) * | 2012-02-02 | 2013-08-08 | Eolotec Gmbh | Bearing unit, in particular for a wind turbine |
| JP2014050958A (en) * | 2013-11-15 | 2014-03-20 | Nsk Ltd | Main spindle device, and machine tool provided with the same |
| CN204538851U (en) * | 2015-04-30 | 2015-08-05 | 新疆金风科技股份有限公司 | Wind-driven generator and bearing support structure thereof |
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| CN201255082Y (en) * | 2008-09-11 | 2009-06-10 | 上海致远绿色能源有限公司 | Non-principal axis and half-straight-drive wind power generator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110792565A (en) * | 2019-10-17 | 2020-02-14 | 崔平 | Main shaft-free direct-drive generator for wind power generation |
| CN114439903A (en) * | 2021-11-30 | 2022-05-06 | 上海电气风电集团股份有限公司 | Gear box integrated device and wind generating set comprising same |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190705 |