CN101409478A - Permanent magnetism levitation energy-storing flywheel system - Google Patents

Permanent magnetism levitation energy-storing flywheel system Download PDF

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Publication number
CN101409478A
CN101409478A CNA2007101573852A CN200710157385A CN101409478A CN 101409478 A CN101409478 A CN 101409478A CN A2007101573852 A CNA2007101573852 A CN A2007101573852A CN 200710157385 A CN200710157385 A CN 200710157385A CN 101409478 A CN101409478 A CN 101409478A
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China
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permanent magnet
rotor
flywheel
axle
energy
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CN101409478B (en
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孙昊天
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Shenyang Weidesi Mechanical Equipment Co ltd
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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
    • F16C32/0429—Passive magnetic bearings with permanent magnets on both parts repelling each other for both radial and axial load, e.g. conical magnets
    • F16C32/0431—Passive magnetic bearings with permanent magnets on both parts repelling each other for both radial and axial load, e.g. conical magnets with bearings for axial load combined with bearings for radial load
    • 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
    • F16C2361/00—Apparatus or articles in engineering in general
    • F16C2361/55—Flywheel systems

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

The invention discloses a permanent magnetic suspension energy-storage flywheel system with adjustable output power of a generator, mainly consisting of a vacuum box, a shaft, a flywheel rotor, an end bearing, a radial bearing, a motor, a transmission mechanism, a control device and the like; as the permanent magnetic suspension bearing is used for supporting and the motor coil winding forms complete coincidence, partial coincidence or no coincidence with the rotor permanent magnet by sliding in the axial direction, the output power of the motor in the energy-storage flywheel is changed within 0-100%, the empty load power consumption is obviously reduced and the energy resource is saved; the upper end surface and the lower end surface of the flywheel rotor are provided with a plurality of groups of end surface bearings which consist of concentric rings, run stably and has strong adaptability to the environment; furthermore, as the cylinder body of the vacuum box is internally provided with ring-shaped safety parts, thus improving the running safety of the energy-storage flywheel; if the permanent magnetic suspension energy-storage flywheel system is applied to the automobile field, the existing gasoline automobiles can be replaced, and people live in a green environment without pollution.

Description

Permanent magnetism levitation energy-storing flywheel system
Technical field
The present invention relates to a kind of permanent magnetism levitation energy-storing flywheel system, particularly relate to the adjustable permanent magnetism levitation energy-storing flywheel system of a kind of output of a generator.
Background technology
Along with the progress of society and the continuous development of science and technology; people more and more pay close attention to energy savings and protection environment; for this reason; people have studied multiple energy storage mode; chemical storage batteries energy storage, fuel cell energy storage, superconducting energy storage etc. are arranged; but flywheel energy storage because pollution-free, efficient is high, the life-span is long, characteristics such as easy to use, be subjected to favoring widely.It can be widely used in fields such as electric automobile, Aero-Space, peak load regulation network, uninterrupted power supply, is a kind of very promising energy storage device.The energy accumulation device for fly wheel that adopts generally is made up of flywheel, axle, bearing, motor, vacuum tank, control device etc. at present, but because the bearings poor stability; Power output is non-adjustable, and no-load loss is bigger.Therefore, the accumulated energy flywheel structure awaits improving.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of bearings reliable on the basis of above-mentioned accumulated energy flywheel, and output of a generator is adjustable, can be installed in the fixed location and also can be installed in permanent magnetism levitation energy-storing flywheel system on the various vehicles.
In order to solve the problems of the technologies described above, the present invention mainly is made up of vacuum tank, axle, flywheel rotor, end bearing, journal bearing, motor, transmission mechanism, control device etc.; Described vacuum tank is made up of cylindrical shell, loam cake, lower cover, also cylindrical shell and loam cake or cylindrical shell and lower cover can be made of one, inner barrel at described vacuum tank is equipped with annular safety component, is used to absorb energy when flywheel rotor damages, and this safety component can be made of one with cylindrical shell; Described end bearing is positioned at the two ends up and down of flywheel rotor, and respectively by the permanent magnet that is embedded in loam cake, base be embedded in flywheel rotor corresponding composition of permanent magnet of both ends of the surface up and down, and polarity is relative, be that the N utmost point is extremely relative with N, or the S utmost point is extremely relative with S, this permanent magnet is that annular is arranged, annulus is concentric with flywheel rotor, donut for one or more groups different-diameter, and the polarity of permanent magnet outer surface is opposite on the neighboring concentric annulus, this end bearing adopts the Fe-B rare-earth permanent magnet made, and there is anti oxidation layer on the surface; After also permanent magnet can being installed, be coated with non-conductive oxidation-resistant material at the permanent magnet exposed surface; Described journal bearing is positioned at the two ends of flywheel rotor centre bore, and form the magnet ring group by the permanent magnet correspondence that is embedded in the permanent magnet on the axle and be embedded on the flywheel rotor centre bore respectively, and polarity is relative, be that the N utmost point is extremely relative with N, or the S utmost point is extremely relative with S, and this permanent magnet is one or more groups magnet ring, and the surface polarity of two adjacent groups permanent magnet is opposite, this journal bearing adopts the Nd-Fe-B rare earth permanent magnetic material manufacturing, and there is anti oxidation layer on the surface; After also magnet can being installed, be coated with non-conductive oxidation-resistant material at the magnet exposed surface; Described motor is made of rotor permanent magnet that is embedded in the flywheel rotor centre bore and the coil windings stator that is installed on the axle, and is the integrative-structure of generator and motor, by control device control generating or charging; This rotor permanent magnet is between two groups of journal bearings, and rotor permanent magnet is by the Nd-Fe-B rare earth permanent magnetic material manufacturing, and there is anti oxidation layer on the surface; After also magnet can being installed, be coated with non-conductive oxidation-resistant material at the magnet exposed surface; The coil windings stator is corresponding with rotor permanent magnet, and between coil windings stator and axle fairlead is housed; In the centre bore of described axle transmission mechanism is housed also, this transmission mechanism drives fairlead and is in axial sliding along axle together with coil winding stator, and realizes overlapping fully, partially overlap, not overlapping with rotor permanent magnet; Described axle can be structure as a whole with base, also axle can be directly installed on the following of vacuum tank and cover, and base and lower cover can be made of one; Vacuum transducer and vacuum valve are housed on the cylindrical shell of described vacuum tank, can also connect the vacuum unit on the vacuum valve.
The present invention is owing to adopted the permanent-magnet suspension bearing support, and motor coil winding stator slides vertically to form fully with rotor permanent magnet and situation such as overlaps, partially overlaps, do not overlap, the power output that makes motor in the accumulated energy flywheel is 0～100% variation, and significantly reduced no-load power consumption, saved the energy; The end face bearing that the design of both ends of the surface up and down of flywheel rotor is made up of many groups donut, running is steadily, and is strong to environmental suitability; And, improved the fail safe of accumulated energy flywheel operation in the cylindrical shell of vacuum tank because the safety component of annular is housed.The present invention is not subjected to the restriction of installation position, can be installed in arbitrary orientation, as applies the present invention to automotive field, will substitute existing gasoline automobile, and that people will live in will be pollution-free, in the environment of environmental protection.
Description of drawings
Accompanying drawing 1 is a generalized section of the present invention.
Accompanying drawing 2 is I place partial enlarged drawings of Fig. 1 of the present invention.
Accompanying drawing 3 is relative position figure of end bearing permanent magnet of the present invention.
Accompanying drawing 4 is relative position figure of journal bearing permanent magnet of the present invention.
Accompanying drawing 5 is generalized sections of another mounting means of permanent magnet of the present invention.
Accompanying drawing 6 is the partial enlarged drawings at the II place of Fig. 5 of the present invention.
Embodiment
By Fig. 1, Fig. 2, Fig. 3, Fig. 4 as can be seen, the present invention mainly is made up of vacuum tank 1, axle 2, flywheel rotor 3, end bearing 4,5, journal bearing 6,7, motor 8, transmission mechanism 9, control device 10 etc.; Described vacuum tank 1 is by cylindrical shell 11, loam cake 12, lower cover 13 are formed, also cylindrical shell 11 and loam cake 12 or cylindrical shell 11 can be made of one with lower cover 13, the safety component 14 of annular is housed in cylindrical shell 11 inside of described vacuum tank 1, this safety component 14 can be made of one with cylindrical shell 11, and adopt material such as graphite to make, to absorb flywheel rotor 3 energy when broken, guaranteed the safety of vacuum tank 1; Described end bearing 4,5 are positioned at the two ends up and down of flywheel rotor 3, and respectively by being embedded in upper flat cover 12, the permanent magnet 16 of base 15,17 and be embedded in the permanent magnet 18 of flywheel rotor both ends of the surface about in the of 3,19 corresponding compositions, and polarity is relative, be that the N utmost point is extremely relative with N, or the S utmost point is extremely relative with S, described permanent magnet 16,17,18,19 are respectively annular arranges, annulus is concentric with flywheel rotor 3, permanent magnet 16,17,18,19 are respectively the donut of one or more groups different-diameter, and the polarity of the permanent magnet outer surface on the neighboring concentric annulus is opposite, described end bearing 4,5 permanent magnet 16,17,18,19 adopt the Nd-Fe-B rare earth permanent magnetic material manufacturing, and there is anti oxidation layer on the surface, to prevent permanent magnet 16,17,18,19 is oxidized; Described journal bearing 6,7 are positioned at the two ends of flywheel rotor 3 centre bores, and respectively by the permanent magnet 20 that is embedded on the axle 2,21 and be embedded in permanent magnet 22 on flywheel rotor 3 centre bores, the 23 corresponding magnet ring groups of forming, and polarity is relative, be that the N utmost point is extremely relative with N, or the S utmost point is extremely relative with S, described permanent magnet 20,21,22,23 are respectively one or more groups magnet ring, and the surface polarity of two adjacent groups permanent magnet is opposite, this journal bearing 6,7 permanent magnet 20,21,22,23 adopt the Nd-Fe-B rare earth permanent magnetic material manufacturing, and there is anti oxidation layer on the surface, to prevent permanent magnet 20,21,22,23 is oxidized; The employing of above-mentioned end bearing 4,5 and journal bearing 6,7 has limited five degrees of freedom of flywheel rotor 3, makes flywheel rotor 3 be in suspended state, and can only rotate; Described motor 8 is made of rotor permanent magnet 24 that is embedded in flywheel rotor 3 centre bores and the coil windings stator 25 that is installed on the axle 2, and is the integrative-structure of generator and motor; When giving motor 8 power supplies by described control device 10, this motor 8 just becomes motor, is quickened by 3 rotations of motor drives flywheel rotor, stores thereby transfer electric energy to mechanical energy; When external loading needed electric energy, flywheel rotor 3 applied torque for motor 8, and motor 8 becomes generator again, transfers mechanical energy to electric energy, and by control device 10 outputs; The rotor permanent magnet 24 of described motor 8 adopts the Nd-Fe-B rare earth permanent magnetic material manufacturing between journal bearing 6,7, and there is anti oxidation layer on the surface, in case the sub-permanent magnet of spline 24 is oxidized; Described coil windings stator 25 is corresponding with rotor permanent magnet 24, and between coil windings stator 25 and axle 2 fairlead 26 is housed; In the centre bore of described axle 2 transmission mechanism 9 is housed also, this transmission mechanism drives fairlead 26 and is in axial sliding along axle together with coil winding stator 25, and realize overlapping fully, partially overlap, not overlapping with rotor permanent magnet 24, thereby induced current is changed between maximum and minimum, realized control, and the power loss when making zero load is minimum to power output; Described axle 2 can be structure as a whole with base 15, and this base 15 is sitting on the lower cover 13 of vacuum tank 1, and axle 2 links to each other with the loam cake 12 of vacuum tank 1, also axle 2 can be directly installed on the lower cover 13 of vacuum tank, or base 25 and lower cover 13 are made of one; Vacuum transducer 27 and vacuum valve 29 are housed on the described vacuum tank 1, can also connect vacuum unit 28 on the vacuum valve 29; The working vacuum degree of vacuum tank 1 requires to be higher than 100Pa, when vacuum degree is lower than 100Pa, starts 28 pairs of vacuum tanks 1 of vacuum unit and vacuumizes, and when system did not have vacuum unit 28, vacuum transducer was used for reporting to the police.
By accompanying drawing 5, Fig. 6 as can be seen, the another kind of mounting means of permanent magnet of the present invention is after the permanent magnet 16,17,18,19 with described end bearing 4,5 is embedded in loam cake 12, base 15 respectively, be coated with non-conductive oxidation-resistant material 30 at permanent magnet 16,17,18,19 exposed surfaces, oxidized to prevent permanent magnet 16,17,18,19, can also prevent that 16,17,18,19 fragmentations of fragility permanent magnet from flying out simultaneously; After the permanent magnet 20,21,22,23 of described journal bearing 6,7 is embedded in axle 2 and flywheel rotor 3 centre bores respectively, be coated with non-conductive oxidation-resistant material 31 at permanent magnet 20,21,22,23 exposed surfaces, oxidized to prevent permanent magnet 20,21,22,23, can also prevent that 20,21,22,23 fragmentations of fragility permanent magnet from flying out simultaneously; After the rotor permanent magnet 24 of described motor 8 is embedded in flywheel rotor 3 centre bores, be coated with non-conductive oxidation-resistant material 32,, can also prevent that 24 fragmentations of fragility rotor permanent magnet from flying out simultaneously in case the sub-permanent magnet of spline 24 is oxidized at rotor permanent magnet 24 exposed surfaces.
By the foregoing description, this professional those of ordinary skill should be able to be understood essence of the present invention, and recognizes that concrete implementation detail of the present invention can make various variations in the claim protection range.

Claims (9)

1. a permanent magnetism levitation energy-storing flywheel system comprises vacuum tank (1), axle (2), flywheel rotor (3), end bearing (4), (5), journal bearing (6), (7), motor (8), transmission mechanism (9), control device (10); Described vacuum tank (1) is made up of cylindrical shell (11), loam cake (12), lower cover (13); There is the safety component (14) of annular cylindrical shell (11) inside of described vacuum tank (1); Described axle (2) is structure as a whole with base (25), and axle (2) links to each other with the loam cake (12) of vacuum tank (1); Described end bearing (4), (5) are positioned at the two ends up and down of flywheel rotor (3); Described journal bearing (6), (7) are positioned at the two ends of flywheel rotor (3) centre bore; The rotor permanent magnet (24) that it is characterized in that described motor (8) is embedded on the centre bore of flywheel rotor (3), and this rotor permanent magnet (24) is positioned between journal bearing (6), (7); The coil windings stator (25) of described motor (8) is installed on the axle (2), and this coil windings stator (25) is corresponding with rotor permanent magnet (24), and between coil windings stator (25) and axle (2) fairlead (26) is housed; Described transmission mechanism (9) is contained in the centre bore of axle (2), and drive fairlead (26) is in axial sliding along axle (2) with coil winding stator (25).
2. a kind of permanent magnetism levitation energy-storing flywheel system according to claim 1, it is characterized in that described end bearing (4), (5) are respectively by the permanent magnet (16), (17) that are embedded in upper flat cover (12), base (15) be embedded in flywheel rotor (3) permanent magnet of both ends of the surface (18), (19) are formed up and down, and the N utmost point is extremely relative with N, or the S utmost point is extremely relative with S; Described permanent magnet (16), (17), (18), (19) are arranged for annular, annulus is concentric with flywheel rotor (3), permanent magnet (16), (17), (18), (19) are respectively the donut of one or more groups different-diameter, and the polarity of the permanent magnet outer surface on the neighboring concentric annulus is opposite.
3. a kind of permanent magnetism levitation energy-storing flywheel system according to claim 1, it is characterized in that described journal bearing (6), (7) respectively by be embedded in axle on (2) permanent magnet (20), (21) and permanent magnet (22), (23) that are embedded on flywheel rotor (3) centre bore form one or more groups magnet ring, and the N utmost point is extremely relative with N, or the S utmost point is extremely relative with S, and the surface polarity of two adjacent groups permanent magnet is opposite.
4. a kind of permanent magnetism levitation energy-storing flywheel system according to claim 1 it is characterized in that the Fe-B rare-earth permanent magnet made is adopted in permanent magnet (16), (17), (18), (19) of described end bearing (4), (5), and there is anti oxidation layer on the surface; The Fe-B rare-earth permanent magnet made is adopted in the permanent magnet (20) of described journal bearing (6), (7), (21), (22), (23), and there is anti oxidation layer on the surface.
5. a kind of permanent magnetism levitation energy-storing flywheel system according to claim 1 it is characterized in that described rotor permanent magnet (24) adopts the Fe-B rare-earth permanent magnet made, and there is anti oxidation layer on the surface.
6. a kind of permanent magnetism levitation energy-storing flywheel system according to claim 1 is characterized in that on the cylindrical shell (11) of described vacuum tank (1) vacuum transducer (27) and vacuum valve (29) being housed.
7. a kind of permanent magnetism levitation energy-storing flywheel system according to claim 6 is characterized in that also being connected with on the described vacuum valve (29) vacuum unit (28).
8. a kind of permanent magnetism levitation energy-storing flywheel system according to claim 1 is characterized in that described safety component (14) and cylindrical shell (11) are made of one.
9. a kind of permanent magnetism levitation energy-storing flywheel system according to claim 1, after permanent magnet (16), (17), (18), (19) that it is characterized in that described end bearing (4), (5) are embedded in loam cake (12), base (15) respectively, be coated with non-conductive oxidation-resistant material (30) at permanent magnet (16), (17), (18), (19) exposed surface; The permanent magnet (20) of described journal bearing (6), (7), (21), (22), (23) are coated with non-conductive oxidation-resistant material (31) at permanent magnet (20), (21), (22), (23) exposed surface after being embedded in axle (2) and flywheel rotor (3) centre bore respectively; After the rotor permanent magnet (24) of described motor (8) is embedded in flywheel rotor (3) centre bore, be coated with non-conductive oxidation-resistant material (32) at rotor permanent magnet (24) exposed surface.
CN2007101573852A 2007-10-10 2007-10-10 Permanent magnetism levitation energy-storing flywheel system Active CN101409478B (en)

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