CN201821304U - Magnetic levitation support device and vertical-axis wind generator using same - Google Patents
Magnetic levitation support device and vertical-axis wind generator using same Download PDFInfo
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- CN201821304U CN201821304U CN2010291660412U CN201029166041U CN201821304U CN 201821304 U CN201821304 U CN 201821304U CN 2010291660412 U CN2010291660412 U CN 2010291660412U CN 201029166041 U CN201029166041 U CN 201029166041U CN 201821304 U CN201821304 U CN 201821304U
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- magnetic suspension
- magnetic levitation
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Abstract
The utility model discloses a magnetic levitation support device and a vertical-axis wind generator using the same. The magnetic levitation support device comprises at least three magnetic levitation support mechanisms, wherein the first magnetic levitation support mechanism is arranged on the annular outer edge position of a principle axis supporting a wind wheel; the second magnetic levitation support mechanism is arranged on the annular outer edge position of an armature; the third magnetic levitation support mechanism is arranged on the annular outer edge position of a centre plate of the generator; multiple groups of magnetic steel are annually distributed in each magnetic levitation support mechanism; the magnetic steel is in a matrix structure; and the magnetic steel with up-down opposite positions have opposite polarities. Through the magnetic levitation support device, the rotation resistance moment of the vertical-axis wind generator can be reduced, the start wind speed of the wind wheel is reduced, and the generating efficiency is improved; meanwhile, the service life of the bearing can be prolonged, and the maintenance period of the vertical-axis wind generator is increased.
Description
Technical field
The utility model relates to a kind of magnetic suspension bracing or strutting arrangement that is used for vertical axis aerogenerator, also relates to the wind-driven generator that adopts this magnetic suspension bracing or strutting arrangement simultaneously, belongs to technical field of wind power generation.
Background technology
Wind energy is the regenerative resource of application prospect on the largest scale outside the water energy, is subjected to the great attention of countries in the world.China has become most active in the world wind-power market.The newly-increased wind-powered electricity generation installed capacity in the whole nation in 2009 surpasses 8,000,000 kilowatts, and the accumulative total total capacity has reached more than 2,000 ten thousand kilowatts.Therefore, the market prospects of China's wind power plant manufacturing industry and association area are very wide.
Wind-driven generator divides by the direction of rotating shaft, can be divided into two kinds of trunnion axis and vertical axises.Defectives such as what be widely used at present is horizontal axis wind-driven generator, but its existence manufactures and designs complexity, and cost is high.By contrast, to start that wind speed is low, wind energy utilization is high and numerous advantages such as noiseless, possesses wide market application prospect more through the vertical axis H type wind-driven generator that improves design.
In vertical axis aerogenerator, generator will carry the suffered gravity of wind wheel, stressed member concentrates on generator shaft and is arranged on the bearing on the main shaft, the moment of resistance of generator is strengthened, generating efficiency reduces, influences the startup wind speed of wind wheel, the useful life that also can reduce bearing simultaneously.In order to address this problem, people have proposed to utilize magnetic repulsion to realize supplemental support, thereby reduce the technical scheme of rotational resistance torque.Be in the Chinese utility model patent of ZL 200820126507.1 for example in the patent No., a kind of magnetic levitation system that is used for vertical axis aerogenerator is disclosed, wherein the generator amature main shaft is arranged in the bearing, the main shaft bottom is provided with upper magnet, in the cavity that surrounds with the main shaft bottom on the bearing lower magnet is set, lower magnet is arranged on the upper magnet below and is oppositely arranged with the upper magnet same polarity.Because magnetic levitation system is arranged on the generator shaft bottom, so the generator shaft of upper magnet and upper magnet top is subjected to because the magnetic field force of going up mutually that homopolar magnet repels each other and produced, partial offset pressure on the bearing, the rotational resistance torque of generator is reduced, generating efficiency is improved, the startup wind speed of wind wheel reduces, and also can prolong the useful life of bearing simultaneously.
In addition, be in the Chinese utility model patent of ZL 200820024546.0 in the patent No., a kind of magnetic suspension paddle distance self-adjusting vertical shaft wind power generator is disclosed.It comprises magnetic suspending wind turbine generator, the generator shaft of magnetic suspending wind turbine generator and the impeller shaft of impeller are made into integration, generator shaft penetrates in the electric machine casing, generator amature is installed on generator shaft, Dui Ying electric machine casing is provided with generator unit stator with it, go back installation shaft to magnetic levitation system and axial magnetic device on generator shaft and in the electric machine casing simultaneously, carry out the magnetic suspension location.The axial magnetic suspension device comprises the fixed disk that is arranged on the electric machine casing inner tip, and fixed disk and generator shaft connect firmly, and is provided with the axial upper magnet of at least one annular on fixed disk, and Dui Ying electric machine casing is provided with corresponding axially lower magnet with it.The axial magnetic device comprises at least one internal magnet radially that is arranged on the generator shaft, and Dui Ying electric machine casing is provided with accordingly radially outer magnet with it.
Summary of the invention
Primary technical problem to be solved in the utility model is to provide a kind of magnetic suspension bracing or strutting arrangement that is used for vertical axis aerogenerator.
The another one technical problem that the utility model also will solve is to provide a kind of vertical axis aerogenerator that adopts above-mentioned magnetic suspension bracing or strutting arrangement.
For realizing above-mentioned purpose, the utility model adopts following technical scheme:
A kind of magnetic suspension bracing or strutting arrangement that is used for vertical axis aerogenerator is characterized in that:
Described magnetic suspension bracing or strutting arrangement comprises at least three magnetic suspension supporting mechanisms, wherein the first magnetic suspension supporting mechanism is arranged on the main shaft annular outer fringe position that supports wind wheel, the second magnetic suspension supporting mechanism is arranged on the outer circular edge position of armature, and the 3rd magnetic suspension supporting mechanism is arranged on the spider outer circular edge position of generator;
The many groups magnet steel that in each magnetic suspension supporting mechanism, has annular distribution, described magnet steel adopts matrix type structure, and the polarity of the magnet steel that the position is relative up and down distributes opposite.
In each magnetic suspension supporting mechanism, also have yoke, in described yoke, be provided with a plurality of grooves that are the matrix distribution mode, the described magnet steel of fixed placement in described groove.
The described first magnetic suspension supporting mechanism is provided support by the support that is installed on the king-post.
A kind of vertical axis aerogenerator is characterized in that:
Described vertical axis aerogenerator adopts above-mentioned magnetic suspension bracing or strutting arrangement.
Magnetic suspension bracing or strutting arrangement provided by the utility model can make the rotational resistance torque of vertical axis aerogenerator reduce, and the startup wind speed of wind wheel reduces, thereby generating efficiency is improved.Simultaneously, this magnetic suspension bracing or strutting arrangement also can increase the useful life of bearing, prolongs the maintenance cycle of vertical axis aerogenerator.
Description of drawings
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is the cutaway view of the vertical axis aerogenerator of employing magnetic suspension bracing or strutting arrangement provided by the utility model;
Fig. 2 is the magnet distribution schematic diagram of the first magnetic suspension supporting mechanism in the utility model;
Fig. 3 is the magnet distribution schematic diagram of the second magnetic suspension supporting mechanism in the utility model;
Fig. 4 is the magnet distribution schematic diagram of the 3rd magnetic suspension supporting mechanism in the utility model;
Fig. 5 is the installation site schematic diagram of three magnetic suspension supporting mechanisms in this magnetic suspension bracing or strutting arrangement.
Embodiment
In vertical axis aerogenerator provided by the utility model, employed permanent magnet generator is the tray type structure generator of no iron core.As shown in Figure 1, this generator is encapsulated in by central shaft 1 and upper and lower end cap 6 and surrounds in the enclosure space that forms, and wherein stationary part and rotor portion adopt axial arranged mode.Stationary part mainly is made up of armature pincers 2 and armature 4, wherein armature clamp 2 be fixed on central shaft 1 around, armature 4 radially extends.Rotor portion comprises laterally zygomorphic two rotor disks.Be furnished with the permanent magnet that the polylith magnetic pole replaces above the rotor disk at two, these permanent magnets adopt circular arrangement, thereby form axial excitation field.The outer rim place of two rotor disks also is provided with yoke 5 up and down, so that constitute the magnetic circuit of sealing.Radially the armature 4 of Yan Shening is between two rotor disks.Rotor disk is along with the wind wheel rotation of wind-driven generator, and constantly cutting magnetic line is to produce electric energy.
Need to prove that the tray type structure generator of intermediate stator shown in Figure 1, both sides rotor is a kind of way of realization of vertical axis aerogenerator.In fact, this vertical axis aerogenerator can also adopt the way of realization of center roller, both sides stator, the way of realization that perhaps a plurality of stators, a plurality of rotor axial are alternately arranged.Similarly way of realization also has a lot, has not just given unnecessary details one by one at this.
The magnetic levitation system of available technology adopting is the support needs that satisfy more small-sized vertical axis aerogenerator mostly, so magnet steel often adopts the single-point distribution mode, and the support force of generation is limited.And for large-scale vertical wind-driven generator, magnetic levitation system need satisfy the support needs of big flat thin structure, and it is not enough therefore adopting single magnetic suspension supporting mechanism.Need adopt the multi-point support mode in conjunction with the mass distribution and the rotational resistance torque characteristic distributions of vertical axis aerogenerator, carry out magnetic suspension jointly by a plurality of magnetic suspension supporting mechanisms and support.
For this reason, magnetic suspension bracing or strutting arrangement provided by the utility model comprises at least three magnetic suspension supporting mechanisms.Wherein, the first magnetic suspension supporting mechanism is used to realize the magnetic suspension support of wind wheel, and this magnetic suspension supporting mechanism is made up of yoke 8 and polylith magnet steel 9, and is provided support by the support 7 that is installed on the king-post.The second magnetic suspension supporting mechanism 10 comprises yoke and the many group magnet steel of realizing that the armature magnetic suspension is supported.The 3rd magnetic suspension supporting mechanism 11 comprises yoke and the many group magnet steel of realizing that the generator magnetic suspension is supported.These three magnetic suspension supporting mechanisms make the rotating part of whole vertical axis aerogenerator be operated in unresisted vacant state, have significantly reduced turning moment.
Radial cross-section as shown in Figure 2 has many group magnet steel in the first above-mentioned magnetic suspension supporting mechanism.These magnet steel adopt matrix type structure, along the main shaft annular outer fringe position annular distribution that supports wind wheel.The polarity of the magnet steel that the position is relative up and down distributes just in time opposite, thereby produces the magnetic repulsion that is used to support wind wheel.
Radial cross-section as shown in Figure 3 has many group magnet steel in the second magnetic suspension supporting mechanism 10.These magnet steel adopt matrix type structure, along the outer circular edge position annular distribution of armature.The polarity of the magnet steel that the position is relative up and down distributes just in time opposite, thereby produces the magnetic repulsion that is used to support armature.
Similarly, radial cross-section as shown in Figure 4 also has many group magnet steel in the 3rd magnetic suspension supporting mechanism 11.These magnet steel adopt matrix type structure, along the spider outer circular edge position annular distribution of generator.The polarity of the magnet steel that the position is relative up and down distributes just in time opposite, thereby produces the magnetic repulsion that is used to support generator.
From the major axes orientation of vertical axis aerogenerator, the magnet steel of three above-mentioned magnetic suspension supporting mechanisms distributes and is three rings that vary in size.As shown in Figure 5, wherein the most inboard ring bodies is the first magnetic suspension supporting mechanism, and middle ring bodies is the 3rd magnetic suspension supporting mechanism 11, and outermost ring bodies is the second magnetic suspension supporting mechanism 10.
Magnet steel in each magnetic suspension supporting mechanism all adopts matrix type structure, have volume little, arrange conveniently, easily magnetize, advantage such as equal unit are magnetic force is strong.In the process that adopts matrix type structure, there is a technical barrier to be to be difficult to avoid magnet steel dislocation in the wind-driven generator running, to occur, in case occur misplacing then magnetic suspension support and can't realize that this also is the main cause that does not often adopt matrix type structure in the prior art.In order to solve this technical barrier, the utility model offers a plurality of grooves that are the matrix distribution mode in yoke, fixed placement is used to realize the magnet steel of magnetic suspension support in these grooves, thereby realization is spacing to the position of magnet steel, has effectively avoided the problem of magnet steel dislocation.
More than to magnetic suspension bracing or strutting arrangement provided by the utility model and adopt the vertical axis aerogenerator of this device to have been described in detail.To those skilled in the art, any conspicuous change of under the prerequisite that does not deviate from the utility model connotation it being done all will constitute to the utility model infringement of patent right, with corresponding legal responsibilities.
Claims (4)
1. magnetic suspension bracing or strutting arrangement that is used for vertical axis aerogenerator is characterized in that:
Described magnetic suspension bracing or strutting arrangement comprises at least three magnetic suspension supporting mechanisms, wherein the first magnetic suspension supporting mechanism is arranged on the main shaft annular outer fringe position that supports wind wheel, the second magnetic suspension supporting mechanism is arranged on the outer circular edge position of armature, and the 3rd magnetic suspension supporting mechanism is arranged on the spider outer circular edge position of generator;
The many groups magnet steel that in each magnetic suspension supporting mechanism, has annular distribution, described magnet steel adopts matrix type structure, and the polarity of the magnet steel that the position is relative up and down distributes opposite.
2. magnetic suspension bracing or strutting arrangement as claimed in claim 1 is characterized in that:
In each magnetic suspension supporting mechanism, also have yoke, in described yoke, be provided with a plurality of grooves that are the matrix distribution mode, the described magnet steel of fixed placement in described groove.
3. magnetic suspension bracing or strutting arrangement as claimed in claim 1 is characterized in that:
The described first magnetic suspension supporting mechanism is provided support by the support that is installed on the king-post.
4. vertical axis aerogenerator is characterized in that:
Described vertical axis aerogenerator adopts magnetic suspension bracing or strutting arrangement as claimed in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010291660412U CN201821304U (en) | 2010-02-08 | 2010-02-08 | Magnetic levitation support device and vertical-axis wind generator using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010291660412U CN201821304U (en) | 2010-02-08 | 2010-02-08 | Magnetic levitation support device and vertical-axis wind generator using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201821304U true CN201821304U (en) | 2011-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010291660412U Expired - Fee Related CN201821304U (en) | 2010-02-08 | 2010-02-08 | Magnetic levitation support device and vertical-axis wind generator using same |
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| CN (1) | CN201821304U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111637014A (en) * | 2020-05-26 | 2020-09-08 | 杭州简弈科技有限公司 | Mechanical automatic direction-adjusting wind power generation device |
-
2010
- 2010-02-08 CN CN2010291660412U patent/CN201821304U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111637014A (en) * | 2020-05-26 | 2020-09-08 | 杭州简弈科技有限公司 | Mechanical automatic direction-adjusting wind power generation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110504 Termination date: 20160208 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |