CN201621017U - Magnetic suspension small wind generator with horizontal shaft - Google Patents
Magnetic suspension small wind generator with horizontal shaft Download PDFInfo
- Publication number
- CN201621017U CN201621017U CN2010201254568U CN201020125456U CN201621017U CN 201621017 U CN201621017 U CN 201621017U CN 2010201254568 U CN2010201254568 U CN 2010201254568U CN 201020125456 U CN201020125456 U CN 201020125456U CN 201621017 U CN201621017 U CN 201621017U
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- CN
- China
- Prior art keywords
- magnetic
- permanent
- bearing
- ring component
- horizontal shaft
- 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.)
- Expired - Fee Related
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0402—Bearings not otherwise provided for using magnetic or electric supporting means combined with other supporting means, e.g. hybrid bearings with both magnetic and fluid supporting means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0406—Magnetic bearings
- F16C32/0408—Passive magnetic bearings
- F16C32/0423—Passive magnetic bearings with permanent magnets on both parts repelling each other
- F16C32/0425—Passive magnetic bearings with permanent magnets on both parts repelling each other for radial load mainly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2360/00—Engines or pumps
- F16C2360/31—Wind motors
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wind Motors (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model relates to a magnetic suspension small wind generator with a horizontal shaft, which comprises a rotating shaft, a stator and a rotor, wherein one end of the rotating shaft (2) is supported by a rolling bearing (13), and the other end thereof is supported by a permanent magnet bearing and provided with blades; and the stator and the rotor are distributed between the permanent magnet bearing and the rolling bearing. The magnetic suspension small wind generator with the horizontal shaft applies the magnetic suspension supporting technology into the traditional small wind generator, thus having the advantages of small starting resistance moment, simple structure, low cost, low wind-speed starting, easy assembly and the like.
Description
Technical field
The utility model relates to small-sized wind power generator and magnetic suspension bearing technology, especially relates to a kind of small magnetic suspension horizontal shaft wind power generator that can develop the low wind speed resource of domestic wide geographic area.
Background technique
The small-sized wind power generator equipment cost is low, pollution-free, energy consumption is low, structure is versatile and flexible, install and use and safeguard very easy, so small-sized wind power generator is particularly suitable for solving the electrical problem of the vast remote pastoral area that can't set up power transmission line, mountain area, island, frontier sentry, meteorological station, the transfer station, street lamp, lawn light, park, villa etc.Yet conventional small wind-driven generator resistance of start square is big, and starting wind velocity is more than 3.5m/s, and the generating wind speed must reach 4.2m/s.Statistics and calculating by China Meteorological Administration, the abundant district of China's wind energy accounts for 8% of national area, the abundant district of wind energy accounts for 18% of national area, wind energy can utilize the district to account for 50% of national area, wherein wind energy can utilize district's wind speed to be 2000-4000 greater than the year accumulative total hour number of 3m/s, and the conventional small wind-driven generator can't effectively develop the low wind speed resource of domestic wide geographic area.
One of major reason that the China of restriction at present small-sized wind power generator is generally applied is exactly that traditional wind resistance of start square is big.The factor that influences small-sized wind power generator starting resistance square has: power generator rotor magnetic pole is to the resisting moment of the magnetic pull generation of stator, the concentricity of generator, air gap whether evenly, the elasticity of mechanical bearing, and the mechanical bearing at support generator rotating shaft two ends is because the surface friction drag that discontinuity causes is big etc.
Therefore, reduce the resistance of start square of horizontal axis small-sized wind power generator, reducing its starting wind velocity is the problem that China's large-scale promotion application small-sized wind power generator presses for solution.
Summary of the invention
Technical problem to be solved in the utility model is: a kind of small magnetic suspension horizontal shaft wind power generator is provided, and this wind-driven generator resistance of start square is little, can hang down the wind speed starting.
The technological scheme that its technical problem that solves the utility model adopts is: comprise rotating shaft, stator and rotor.One end of described rotating shaft adopts the rolling bearing supporting, and the other end adopts the Permanent-magnet bearing supporting, and this end is installed blade.Described stator and rotor arrangements are between Permanent-magnet bearing and rolling bearing.
The utility model is mainly used in that to solve conventional small wind-driven generator resistance of start square big, causes its starting wind velocity generally more than 3.5m/s, can't effectively develop the low wind speed problem of resource of domestic wide geographic area.At the deficiency and the defective of conventional small wind-driven generator, the utility model is applied to the magnetic suspension bearing technology in the conventional small wind-driven generator, therefore has following major advantage:
1. low wind speed starting: adopt Permanent-magnet bearing supporting and rolling bearing mixing bearing, can effectively reduce resistance of start square, reduce horizontal axis small-sized wind power generator starting wind velocity, can satisfy the processing and the matching requirements of Permanent-magnet bearing again;
2. easy to operate: as by the moving magnetic ring component of axial differential adjusting nut control with decide axial dipole field displacement between the magnetic ring component, thereby to be easy to regulate the radial magnetic force of Permanent-magnet bearing and the size of axial magnetic;
3. simple in structure, be easy to assembling, cost is low;
4. resistance of start square is little: according to method described in the GB/T 10760.2-2003, test at 500w horizontal axis small-sized wind power generator, under identical experimental condition, traditional wind resistance of start square is 0.452Nm, and the resistance of start square of the utility model small magnetic suspension horizontal shaft wind power generator is 0.260Nm.So little resistance of start square can make the utility model small magnetic suspension horizontal shaft wind power generator realize low wind speed starting, thereby is beneficial to the low wind speed resource of the domestic wide geographic area of exploitation.
Description of drawings
Fig. 1 is the structural representation of the small magnetic suspension horizontal shaft wind power generator that provides of the utility model.
Fig. 2 is the Permanent-magnet bearing magnet ring direction of magnetization and an overlaying structure schematic representation (sectional view) among Fig. 1.
Fig. 3 is for deciding the structural representation of monolithic permanent-magnetic clamp in magnetic ring component and the moving magnetic ring component.
Fig. 4 is the left view of Fig. 3.
Fig. 5 is for deciding magnetic ring component retainer structural representation.
Fig. 6 is moving magnetic ring component retainer structural representation.
Fig. 7 is for deciding magnetic ring component and moving magnet ring magnetism resistent ring structural representation.
Fig. 8 is the left view of Fig. 7.
Fig. 9 is axial differential adjusting nut structural representation.
Among the figure: 1. moving magnetic ring component retainer; 2. rotating shaft; 3. locking nut; 4. moving magnetic ring component; 5. decide the magnetic ring component retainer; 6. clamping screw; 7. stator; 8. locking screw; 9. generator connecting plate; 10. rear support connecting plate; 11. axial differential adjusting nut; 12. bearing support; 13. rolling bearing; 14. rear support; 15. stator casing; 16. pilot sleeve; 17. decide the magnet ring magnetism resistent ring; 18. preceding bearing; 19. decide magnetic ring component; 20. key; 21. moving magnet ring magnetism resistent ring; 22. key; 23. end cap; 24. monolithic permanent-magnetic clamp; 25. big chamber; 26. hole; 27. loculus; 28. through hole; 29. mounting hole; 30. bolt hole; 31. fixed hole; 32. inner chamber; 33. blind hole.
Embodiment
The utility model is described in further detail below in conjunction with embodiment and accompanying drawing.
The small magnetic suspension horizontal shaft wind power generator that the utility model provides comprises rotating shaft, stator and rotor, and wherein: as shown in Figure 1, an end of the rotating shaft 2 of this generator adopts rolling bearing 13 supportings, and the other end adopts the Permanent-magnet bearing supporting, and this end is installed blade.The stator 7 of this generator and rotor arrangements are between Permanent-magnet bearing and rolling bearing.
Described Permanent-magnet bearing, it is by moving magnetic ring component 4 and decide magnetic ring component 19 and constitute, and moving magnetic ring component is fixed on by moving magnet ring magnetism resistent ring 21 and clamping screw 6 and moves on the magnetic ring component retainer 1, is installed in the rotating shaft 2 by key 22 and locking nut 3 again.Decide magnetic ring component by in the preceding bearing 18 of deciding magnetic ring component retainer 5 and being installed in generator.During work, Permanent-magnet bearing will bear the main load of this wind-driven generator.
Above-mentioned moving magnetic ring component 4 can be superposeed vertically by multi-disc (for example 8) NdFeB permanent-magnetic clamp, and the direction of magnetization is the parallel to an axis magnetization; The permanent-magnetic clamp stacked system and the direction of magnetization as shown in Figure 2, arrow is represented the direction of magnetization, the structure of monolithic permanent-magnetic clamp 24 as shown in Figure 3 and Figure 4.Utilize moving magnet ring magnetism resistent ring 21 that non-magnet_conductible material is processed into and moving magnetic ring component retainer 1 every magnetic between described permanent-magnetic clamp and the rotating shaft 2, this permanent-magnetic clamp is fixed on the moving magnetic ring component retainer 1 by moving magnet ring magnetism resistent ring 21 and clamping screw 6.Moving magnetic ring component retainer 1 is connected by key 22 with rotating shaft 2, and finishes axial restraint by locking nut 3.
Above-mentioned decide magnetic ring component 19 and can be superposeed vertically by multi-disc (for example 8) NdFeB permanent-magnetic clamp, the direction of magnetization is the parallel to an axis magnetization; The permanent-magnetic clamp stacked system and the direction of magnetization as shown in Figure 2, arrow is represented the direction of magnetization, the structure of monolithic permanent-magnetic clamp 24 as shown in Figure 3 and Figure 4.Utilize non-magnet_conductible material is processed into decide magnet ring magnetism resistent ring 17 and decide magnetic ring component retainer 5 every magnetic between described permanent-magnetic clamp and the rotating shaft 2, this permanent-magnetic clamp is fixed on and decides on the magnetic ring component retainer 5 by deciding magnet ring magnetism resistent ring 17 and clamping screw 6.Decide magnetic ring component retainer 5 and be connected by key 20, and finish axial restraint by end cap 23 with preceding bearing 18.
The permanent-magnetic clamp end of above-mentioned moving magnetic ring component 4 is the moving magnet ring magnetism resistent ring 21 (Fig. 2) that non-magnet_conductible material is made.As shown in Figure 7 and Figure 8, this is provided with a plurality of (for example 4) equally distributed and bolt hole 30 that link to each other with clamping screw 6 cooperations above magnetism resistent ring.
The above-mentioned permanent-magnetic clamp end of deciding magnetic ring component 19 be non-magnet_conductible material make decide magnet ring magnetism resistent ring 17 (Fig. 2).As shown in Figure 7 and Figure 8, this magnetism resistent ring is identical with the structure of moving magnet ring magnetism resistent ring 21, also is provided with a plurality of (for example 4) equally distributed and bolt hole 30 that link to each other with clamping screw 6 cooperations above it.
Above-mentioned non-magnet_conductible material all adopts aluminum alloy or other material.
Above-mentioned moving magnetic ring component 4 and decide axial dipole field displacement between the magnetic ring component 19, can be by axial differential adjusting nut 11 controls, make Permanent-magnet bearing that radial magnetic force mainly is provided, also produce simultaneously certain axial magnetic, the radial magnetic force supporting role is in the deadweight of most wind loads, blade, rotating shaft and the generator amature of rotating shaft blade end, eliminate the friction of blade end bearing, reduce to rub between the rolling bearing, improve the unbalance stress of whole generating machine rotating shaft, but the axial wind of an axial magnetic balance part carries.Axial differential adjusting nut 11 is installed on the rear support 14 of generator.
Described rear support 14 can be linked to each other with generator connecting plate 9 by bolt, and this generator connecting plate is linked to each other with rear support connecting plate 10 by bolt.
Be provided with bearing support 12 between axial differential adjusting nut 11 and rear support 14, they are successively by being threaded, and two groups of pitch differences in being threaded, and can realize the fine setting of bearing support 12 axial positions during the differential adjusting nut 11 of axial rotary.
The structure of described axial differential adjusting nut 11 is as shown in Figure 9: it is the cylinder that has the shaft shoulder, this cylinder is provided with inner chamber 32, shaft shoulder place is provided with a plurality of blind holes 33 that are used to place the special tool of the differential adjusting nut 11 of axial rotary, shaft shoulder place also be provided with a plurality of be used to adjust finish after lock shaft to the fixed hole 31 of differential adjusting nut.
Described rolling bearing 13 is installed in the bearing support 12, and this bearing support is used for supporting shaft 2 and realize the axially locating of this rotating shaft.
Described structure of deciding magnetic ring component retainer 5 is as shown in Figure 5: it is for cylindric; It connects vestibule is made up of big chamber 25 and loculus 27, big chamber 25 with decide magnetic ring component 19 and decide 17 cooperations of magnet ring magnetism resistent ring to link to each other, loculus 27 places have magnetic ring component retainer 1 to pass; Its right periphery is provided with a plurality of holes 26, and these holes are used for the installation of clamping screw 6, and be evenly distributed on loculus 27 around.
The structure of described moving magnetic ring component retainer 1 is as shown in Figure 6: it is the cylinder that has the shaft shoulder, and this cylinder is provided with the through hole 28 that links to each other with rotating shaft 2, and shaft shoulder place is provided with a plurality of mounting holes 29 that are used to install clamping screw 6.
The working procedure of the small magnetic suspension horizontal shaft wind power generator that the utility model provides (abbreviation generator) is: by regulating the axial differential adjusting nut 11 of rear end, the axial position of deciding 4 of magnetic ring component 19 and moving magnetic ring component of Permanent-magnet bearing is overlapped, thereby make the resistance of start square of generator reach minimum; The torque that provides when blade is during greater than the resisting moment in the generator, the blade impeller begins to rotate under the common supporting of Permanent-magnet bearing and mechanical bearing, moving magnetic ring component 4 is rotated with rotating shaft 2 under the supporting of magnetic force, and drive generator amature rotation, make the coil cutting magnetic line in the generator unit stator produce induction electromotive force, mechanical energy is converted into electric energy.
The utility model can be widely used in vast remote pastoral area, mountain area, island, frontier sentry, meteorological station, the transfer station that can't set up power transmission line, in the area or city that wind energy resources is abundant, and install as a kind of view and to be applied to street lamp, lawn light, park, villa etc. and to solve its electrical problem.
Claims (9)
1. a small magnetic suspension horizontal shaft wind power generator comprises rotating shaft, stator and rotor, it is characterized in that an end of the rotating shaft (2) of this generator adopts rolling bearing (13) supporting, and the other end adopts the Permanent-magnet bearing supporting, and this end is installed blade; The stator of this generator and rotor arrangements are between Permanent-magnet bearing and rolling bearing.
2. small magnetic suspension horizontal shaft wind power generator according to claim 1, it is characterized in that: Permanent-magnet bearing is by moving magnetic ring component (4) and decide magnetic ring component (19) formation, moving magnetic ring component (4) is installed in the rotating shaft (2) by locking nut (3) by moving magnetic ring component retainer (1), decides in the preceding bearing (18) that magnetic ring component (19) is installed in generator.
3. small magnetic suspension horizontal shaft wind power generator according to claim 2, it is characterized in that: moving magnetic ring component (4) is superposeed vertically by multi-disc NdFeB permanent-magnetic clamp, the direction of magnetization is the parallel to an axis magnetization, the magnetism resistent ring that utilizes retainer that non-magnet_conductible material is processed into and permanent-magnetic clamp end between described permanent-magnetic clamp and the rotating shaft (2) is every magnetic, and this permanent-magnetic clamp is fixed on the retainer by clamping screw.
4. small magnetic suspension horizontal shaft wind power generator according to claim 2, it is characterized in that deciding magnetic ring component (19) is superposeed vertically by multi-disc NdFeB permanent-magnetic clamp, the direction of magnetization is the parallel to an axis magnetization, the magnetism resistent ring that utilizes retainer that non-magnet_conductible material is processed into and permanent-magnetic clamp end between described permanent-magnetic clamp and the rotating shaft (2) is every magnetic, and this permanent-magnetic clamp is fixed on the retainer by clamping screw.
5. small magnetic suspension horizontal shaft wind power generator according to claim 2, it is characterized in that: moving magnetic ring component (4) and the axial dipole field displacement of deciding between the magnetic ring component (19) are controlled by axial differential adjusting nut (11), and this nut is installed on the rear support (14) of generator.
6. small magnetic suspension horizontal shaft wind power generator according to claim 5 is characterized in that: be provided with bearing support (12) between axial differential adjusting nut (11) and rear support (14), they are successively by being threaded.
7. according to claim 1 or 6 described small magnetic suspension horizontal shaft wind power generators, it is characterized in that: the bearing of installing in the bearing support (12) is rolling bearing (13).
8. small magnetic suspension horizontal shaft wind power generator according to claim 2 is characterized in that: preceding bearing (18) is linked to each other with pilot sleeve (16) by bolt, and this pilot sleeve links to each other with stator casing (15) by bolt.
9. small magnetic suspension horizontal shaft wind power generator according to claim 8 is characterized in that: preceding bearing (18) by key (20) with decide magnetic ring component retainer (5) and link to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201254568U CN201621017U (en) | 2010-03-04 | 2010-03-04 | Magnetic suspension small wind generator with horizontal shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201254568U CN201621017U (en) | 2010-03-04 | 2010-03-04 | Magnetic suspension small wind generator with horizontal shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201621017U true CN201621017U (en) | 2010-11-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201254568U Expired - Fee Related CN201621017U (en) | 2010-03-04 | 2010-03-04 | Magnetic suspension small wind generator with horizontal shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201621017U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101787961A (en) * | 2010-03-04 | 2010-07-28 | 武汉理工大学 | Small magnetic suspension horizontal shaft wind power generator |
| CN111379796A (en) * | 2020-03-28 | 2020-07-07 | 梅国强 | Bearing coupling and directly electrically driven and power generating bearing and drive system |
-
2010
- 2010-03-04 CN CN2010201254568U patent/CN201621017U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101787961A (en) * | 2010-03-04 | 2010-07-28 | 武汉理工大学 | Small magnetic suspension horizontal shaft wind power generator |
| CN101787961B (en) * | 2010-03-04 | 2012-04-25 | 武汉理工大学 | Magnetic suspension horizontal shaft small-sized wind driven generator |
| CN111379796A (en) * | 2020-03-28 | 2020-07-07 | 梅国强 | Bearing coupling and directly electrically driven and power generating bearing and drive system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101103 Termination date: 20130304 |