CN105811646A - Magnetically supported and mechanical bearing supported hybrid energy-storage flywheel device - Google Patents
Magnetically supported and mechanical bearing supported hybrid energy-storage flywheel device Download PDFInfo
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- CN105811646A CN105811646A CN201610351645.9A CN201610351645A CN105811646A CN 105811646 A CN105811646 A CN 105811646A CN 201610351645 A CN201610351645 A CN 201610351645A CN 105811646 A CN105811646 A CN 105811646A
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/02—Additional mass for increasing inertia, e.g. flywheels
- H02K7/025—Additional mass for increasing inertia, e.g. flywheels for power storage
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- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
Abstract
A magnetically supported and mechanical bearing supported hybrid energy-storage flywheel device comprises: a base (3) and is characterized in that the base is connected with an axial force sensor component (24), a flywheel rotor (7) and a motor stator (12), an axial magnetic bearing (11) is mounted between the flywheel rotor and the motor stator, an upper-end support component (16) is connected to the motor stator and is connected with a radial displacement sensor (17), and the base is connected with a suction nozzle (21). The invention is used as the magnetically supported and mechanical bearing supported hybrid energy-storage flywheel device.
Description
Technical field
The present invention relates to a kind of magnetic force and the accumulated energy flywheel device of mechanical bearing mixing support.
Background technology
Electric energy is the energy form that society is most widely used, demand is maximum.It is both needed to large power supply uninterrupted, high-quality in occasions such as military project command post, large hospital, large-scale data centers, needs for this to be equipped with powerful uninterrupted power source ups system.Charge/discharge subsystem is the key link in uninterrupted power source ups system, and this subsystem is mainly realized by connection in series-parallel by chemical cell (such as lead-acid battery, lithium battery etc.) at present.Due to chemical cell exist cost height, thermal adaptability poor, not environmentally, the shortcoming such as moment output poor, the charging interval length of high power characteristics, be therefore badly in need of novel discharge and recharge subsystem replacement.
Flywheel energy storage is the inertia utilizing flywheel rotor, by motor-driven flywheel rotor high speed rotating, electric energy is converted to kinetic energy and is charged, convert kinetic energy into electrical energy discharge when required by electromotor.Its advantage is that energy storage density is big, energy conversion rate is high, the charging interval is short, long service life, repeatable deep discharge etc., at present in field application such as national defence, track traffic, new forms of energy, oil exploitation and Aero-Space, it it is the energy storage mode of a kind of high-efficiency environment friendly.
For realizing high energy storage density, flywheel needs high speed rotating, and therefore the support technology of flywheel rotor is one of key technology in flywheel energy storage.Traditional rotor supports mode is to adopt mechanical bearing to support, and its shortcoming is to need to lubricate, there is abrasion, but has advantage simple and reliable for structure, that cost is low；Another kind of supporting way is to adopt magnetic support (permanent magnetism, electromagnetism, super-conductive magnetic suspension), and its principle is to utilize magnetic support that rotor suspension is absent from Mechanical Contact between space, rotor and stator.When flywheel rotor rotates, be absent from mechanical wear, without lubrication, noise is little, the life-span is long.The colleges and universities such as current Tsing-Hua University, BJ University of Aeronautics & Astronautics, the National University of Defense technology, Harbin Institute of Technology, Zhejiang University, Nanjing Aero-Space University have carried out the research work of magnetic bearing field correlation technique.The shortcoming that magnetic bearing supports is that the reliability requirement controlling system is high, once the rotor unstability of high speed rotating, it is easy to cause bigger damage.For this, magnetic support system is commonly equipped with mechanical bearing, and the protection for flywheel rotor supports.Supporting despite protection, flywheel rotor is when high speed unstability, and protection bearing can accelerate at a high speed from 0 rotating speed moment, therefore that the requirement of emergent bearing is significantly high, and is frequently present of protection situation incessantly.
Summary of the invention
It is an object of the invention to provide one to achieve flywheel rotor high speed, reliably operate, reduce a kind of magnetic force of the cost of a support system and the accumulated energy flywheel device of mechanical bearing mixing support simultaneously.
Above-mentioned purpose is realized by following technical scheme:
The accumulated energy flywheel device that a kind of magnetic force and mechanical bearing mixing support, its composition includes: base (3), described base connects axial force transducer assembly (24), flywheel rotor (7), motor stator (12), equipped with Axial Magnetic Bearing (11) between described flywheel rotor and described motor stator, described motor stator connects upper end and props up support component (16), described upper end is propped up support component and is connected radial displacement transducer (17), and described base connects air exhaust nozzle (21).
nullThe accumulated energy flywheel device that described a kind of magnetic force and mechanical bearing mixing support，Equipped with lower mechanical bearing (2) between described base and described flywheel rotor，Support component is propped up equipped with radial magnetic bearing (19) in described flywheel rotor and described upper end，Described flywheel rotor connects axle head locknut (1)，Between described base and described axial force transducer assembly, screw (4) and O (5) are connected fixing，Described lower mechanical bearing connects O (6)，Between described flywheel rotor and described motor stator equipped with O (8) and by screw (9) is connected fix，It is connected fixing between described motor stator and described motor stator by screw (10)，Described motor stator is fixed by screw (13) with described radial displacement transducer，Described upper end prop up between support component and described radial displacement transducer equipped with O (15) and by screw (14) fix，Described radial magnetic bearing is fixed by screw (18) with described radial displacement transducer，Equipped with O (20) between described radial magnetic bearing and described motor stator，Between described base and described air exhaust nozzle equipped with O (22) and by screw (23) fix.
nullThe accumulated energy flywheel device that described a kind of magnetic force and mechanical bearing mixing support，Described flywheel rotor includes flywheel (701)，Described flywheel connects magnetic steel of motor lower end magnetism-isolating loop (702)，Described magnetic steel of motor lower end magnetism-isolating loop connects rotor silicon steel sheet lamination (703)，Described rotor silicon steel sheet lamination connects magnetic steel of motor (704)，Described magnetic steel of motor connects magnetic steel of motor sheath (705)，Described flywheel connects described rotor silicon steel sheet lamination，Described flywheel、Described rotor silicon steel sheet lamination、Described magnetic steel of motor、Described magnetic steel of motor sheath is all connected with magnetic steel of motor upper end magnetism-isolating loop (706)，Described flywheel is sequentially connected with radial direction magnetic bearing rotor lower end magnetism-isolating loop (707)、Radial direction magnetic bearing rotor silicon steel sheet lamination (708)、Radial direction magnetic bearing rotor upper end magnetism-isolating loop (709)、Radial displacement transducer detection ring (710).
The accumulated energy flywheel device that described a kind of magnetic force and mechanical bearing mixing support, described Axial Magnetic Bearing includes Axial Magnetic Bearing seat (1101), and described Axial Magnetic Bearing seat connects Axial Magnetic Bearing winding (1102)；Described upper end is propped up support component and is included upper shaft bearing (1601), described upper shaft bearing is connected upper mechanical bearing (ball) cover (1603) and is fixed by screw (1604), equipped with upper mechanical bearing (1602) between described upper shaft bearing and described upper mechanical bearing (ball) cover, described connection, described upper shaft bearing is connected vacuum sock (1605) and is fixed by screw (1606).
nullThe accumulated energy flywheel device that described a kind of magnetic force and mechanical bearing mixing support，Described motor stator includes motor stator casing (1201)，Described motor stator casing connects motor stator lamination cramp (1202)，Described motor stator lamination cramp connects motor stator lamination lower end insulating end plate (1203)，Described motor stator lamination lower end insulating end plate connects motor stator lamination (1204)，Described motor stator lamination connects motor stator lamination upper end insulating end plate (1204)，Described motor stator lamination upper end insulating end plate connects motor stator winding (1206)，Described motor stator casing is connected vacuum sock (1214) and is fixed by screw (1213)，Described motor stator winding connects motor winding leading-out wire (1212)，Described motor winding leading-out wire connects copper sleeve nut (1211)，Described motor stator casing is connected vacuum electrode (1208) and is fixed by screw (1207)，Equipped with insulation sleeve (1210) and O (1209) between described motor stator casing and described motor winding leading-out wire.
The accumulated energy flywheel device that described a kind of magnetic force and mechanical bearing mixing support, described radial displacement transducer includes (1701) radial displacement transducer seat, described radial displacement transducer seat connects radial displacement probe framework (1702), described radial displacement probe framework connects radial displacement transducer probe coil (1703), and described radial displacement transducer probe coil is fixed by resin glue (1704).
The accumulated energy flywheel device that described a kind of magnetic force and mechanical bearing mixing support, described radial magnetic bearing includes radial magnetic bearing seat (1901), described radial magnetic bearing seat connects radial magnetic bearing threaded collar (1904), equipped with radial magnetic bearing stator lamination (1902) between the described radial magnetic bearing threaded collar described in radial magnetic bearing seat, described radial magnetic bearing stator lamination connects radial magnetic bearing stator winding (1903).
The accumulated energy flywheel device that described a kind of magnetic force and mechanical bearing mixing support, described axial force transducer assembly includes axial force transducer seat (2401), described axial force transducer seat connects axial force transducer (2403) and by screw (2404), described axial force transducer connects U-shaped set (2402), and described axial force transducer seat is connected vacuum sock (2405) and fixed by screw (2406).
The accumulated energy flywheel device that described a kind of magnetic force and mechanical bearing mixing support, described flywheel rotor assembly (7) lower end is supported by lower mechanical bearing (1) radial rigidity, upper end supported by radial magnetic bearing (19) radial compliance, is supported at lower end axial stiffness by axial force transducer assembly (24), attracted flywheel rotor (7) by Axial Magnetic Bearing (11) upwards magnetic force, bear the weight of flywheel rotor (7) 9095%；Flywheel rotor (7) exists between upper surface and the lower surface of Axial Magnetic Bearing (11) of flywheel the gap of 0.5 ~ 1mm, between upper axial end and endoporus and the lower surface of upper mechanical bearing of flywheel rotor (7), all there is the gap of 0.5 ~ 1mm.
Beneficial effect:
1. the mechanical bearing supporting construction that the present invention adopts is simple, cost is low and reliability is high, have concurrently again simultaneously magnetic bearing do not contact, flexible support, axially unloading advantage, especially in flywheel rotor rotary course always with lower mechanical bearing touch, be absent from the situation that flywheel rotor falls.
2. the present invention is in high power UPS (UPS), substituted chemistry battery, and this device has that control is simple, vibrate feature little, that life-span length, reliability are high.
3. the invention discloses a kind of machinery adopting mechanical bearing and magnetic bearing mixing support flying wheel rotor.
4. flywheel rotor of the present invention is contained in and is connected in the inner chamber formed with screw successively from bottom to top by base, motor stator, radial magnetic bearing, radial displacement transducer and upper end bearing block assembly, adopts O to seal between each joint face；The lower shaft end of flywheel rotor is supported by radial magnetic bearing radial compliance by lower mechanical bearing and the support of O radial rigidity, upper end, is supported at lower end axial stiffness by axial force transducer assembly, attracted the upper surface of flywheel rotor by the Axial Magnetic Bearing upwards magnetic force being arranged on motor stator lower end, the size of magnetic attraction is about the weight of flywheel rotor 90-95%；The inner chamber at flywheel rotor place passes through air exhaust nozzle evacuation, and the lead-in wire of intracavity is connected with peripheral control unit by vacuum sealing plug and vacuum high-pressure electrode.
5. the present invention uses mechanical bearing and magnetic bearing mixing support flying wheel rotor, is absent from falling of flywheel rotor, and system controls simply, the mechanical bearing life-span is long, and the stability of flywheel rotor is high.
Accompanying drawing illustrates:
Accompanying drawing 1 is the profile that magnetic force and mechanical bearing mixing support accumulated energy flywheel device.
Accompanying drawing 2 is the profile of flywheel rotor.
Accompanying drawing 3 is the profile of Axial Magnetic Bearing.
Accompanying drawing 4 is the profile of motor stator.
Accompanying drawing 5 props up the profile of support component for upper end.
Accompanying drawing 6 is the structure chart of radial displacement transducer.
Accompanying drawing 7 is that the A-A of accompanying drawing 6 is to sectional view.
Accompanying drawing 8 is the structure chart of radial magnetic bearing.
Accompanying drawing 9 is the top view of accompanying drawing 8.
Accompanying drawing 10 is the profile of axial force transducer assembly.
Detailed description of the invention:
Embodiment 1:
The accumulated energy flywheel device that a kind of magnetic force and mechanical bearing mixing support, its composition includes: base 3, described base connects axial force transducer assembly 24, flywheel rotor 7, motor stator 12, equipped with Axial Magnetic Bearing 11 between described flywheel rotor and described motor stator, described motor stator connects upper end and props up support component 16, described upper end is propped up support component and is connected radial displacement transducer 17, and described base connects air exhaust nozzle 21.
Embodiment 2:
A kind of magnetic force and mechanical bearing described in embodiment 1 mix the accumulated energy flywheel device supported, equipped with lower mechanical bearing 2 between described base and described flywheel rotor, support component is propped up equipped with radial magnetic bearing 19 in described flywheel rotor and described upper end, described flywheel rotor connects axle head locknut 1, screw between described base and described axial force transducer assembly4 and O5 connect fixing, described lower mechanical bearing connects O6, equipped with O between described flywheel rotor and described motor stator8 and pass through screw9 connections are fixing, pass through screw between described motor stator and described motor stator10 connections are fixing, and described motor stator and described radial displacement transducer pass through screw13 fix, and described upper end is propped up between support component and described radial displacement transducer equipped with O15 and pass through screw14 fix, and described radial magnetic bearing and described radial displacement transducer pass through screw18 fix, equipped with O between described radial magnetic bearing and described motor stator20, equipped with O between described base and described air exhaust nozzle22 and pass through screw23 fix.
Embodiment 3:
nullA kind of magnetic force and mechanical bearing described in embodiment 1 mix the accumulated energy flywheel device supported，Described flywheel rotor includes flywheel 701，Described flywheel connects magnetic steel of motor lower end magnetism-isolating loop 702，Described magnetic steel of motor lower end magnetism-isolating loop connects rotor silicon steel sheet lamination 703，Described rotor silicon steel sheet lamination connects magnetic steel of motor 704，Described magnetic steel of motor connects magnetic steel of motor sheath 705，Described flywheel connects described rotor silicon steel sheet lamination，Described flywheel、Described rotor silicon steel sheet lamination、Described magnetic steel of motor、Described magnetic steel of motor sheath is all connected with magnetic steel of motor upper end magnetism-isolating loop 706，Described flywheel is sequentially connected with radial direction magnetic bearing rotor lower end magnetism-isolating loop 707、Radial direction magnetic bearing rotor silicon steel sheet lamination 708、Radial direction magnetic bearing rotor upper end magnetism-isolating loop 709、Radial displacement transducer detection ring 710.
Embodiment 4:
A kind of magnetic force and mechanical bearing described in embodiment 1 mix the accumulated energy flywheel device supported, and described Axial Magnetic Bearing includes Axial Magnetic Bearing seat 1101, and described Axial Magnetic Bearing seat connects Axial Magnetic Bearing winding 1102；Described upper end is propped up support component and is included upper shaft bearing 1601, and described upper shaft bearing connects upper mechanical bearing (ball) cover 1603 and passes through screw1604 fix, and equipped with upper mechanical bearing 1602 between described upper shaft bearing and described upper mechanical bearing (ball) cover, described connection, described upper shaft bearing connects vacuum sock 1605 and passes through screw1606 fix.
Embodiment 5:
A kind of magnetic force and mechanical bearing described in embodiment 1 mix the accumulated energy flywheel device supported, described motor stator includes motor stator casing 1201, described motor stator casing connects motor stator lamination cramp 1202, described motor stator lamination cramp connects motor stator lamination lower end insulating end plate 1203, described motor stator lamination lower end insulating end plate connects motor stator lamination 1204, described motor stator lamination connects motor stator lamination upper end insulating end plate 1204, described motor stator lamination upper end insulating end plate connects motor stator winding 1206, described motor stator casing connects vacuum sock 1214 and passes through screw1213 fix, and described motor stator winding connects motor winding leading-out wire 1212, and described motor winding leading-out wire connects copper sleeve nut 1211, and described motor stator casing connects vacuum electrode 1208 and passes through screw1207 fix, equipped with insulation sleeve 1210 and O between described motor stator casing and described motor winding leading-out wire1209。
Embodiment 6:
A kind of magnetic force and mechanical bearing described in embodiment 1 mix the accumulated energy flywheel device supported, described radial displacement transducer includes 1701 radial displacement transducer seats, described radial displacement transducer seat connects radial displacement probe framework 1702, described radial displacement probe framework connects radial displacement transducer probe coil 1703, and described radial displacement transducer probe coil is fixed by resin glue 1704.
Embodiment 7:
A kind of magnetic force and mechanical bearing described in embodiment 2 mix the accumulated energy flywheel device supported, described radial magnetic bearing includes radial magnetic bearing seat 1901, described radial magnetic bearing seat connects radial magnetic bearing threaded collar 1904, equipped with radial magnetic bearing stator lamination 1902 between the described radial magnetic bearing threaded collar described in radial magnetic bearing seat, described radial magnetic bearing stator lamination connects radial magnetic bearing stator winding 1903.
Embodiment 8:
A kind of magnetic force and mechanical bearing described in embodiment 1 mix the accumulated energy flywheel device supported, and described axial force transducer assembly includes axial force transducer seat 2401, and described axial force transducer seat connects axial force transducer 2403 and also passes through screw2404, described axial force transducer connects U-shaped set 2402, and described axial force transducer seat connects vacuum sock 2405 and passes through screw2406 fix.
Embodiment 9:
A kind of magnetic force and mechanical bearing described in embodiment 1 mix the accumulated energy flywheel device supported, described flywheel rotor assembly 7 lower end is supported by lower mechanical bearing 1 radial rigidity, upper end supported by radial magnetic bearing 19 radial compliance, is supported at lower end axial stiffness by axial force transducer assembly 24, flywheel rotor 7 is attracted by Axial Magnetic Bearing 11 upwards magnetic force, bear the weight of flywheel rotor 7,90-95%；Flywheel rotor 7 exists between upper surface and the lower surface of Axial Magnetic Bearing 11 of flywheel the gap of 0.5 ~ 1mm, between upper axial end and endoporus and the lower surface of upper mechanical bearing of flywheel rotor 7, all there is the gap of 0.5 ~ 1mm.
Embodiment 10:
A kind of magnetic force and mechanical bearing described in above-described embodiment mix the accumulated energy flywheel device supported, screw9 are connected through the flange hole of electric machine casing 1201 in motor stator 12 with base 3, and the composition surface between electric machine casing 1201 and base 3 compresses O8；ScrewThe radial magnetic bearing seat 1901 of 13 traverse radial magnetic bearings 19 is connected with electric machine casing 1201, and the faying face between radial magnetic bearing seat 1901 and electric machine casing 1201 compresses O20；Screw14 traverse upper ends are propped up the upper shaft bearing 1601 of support component 16 and are connected with radial magnetic bearing seat 1901, and the composition surface between upper shaft bearing 1601 and radial magnetic bearing seat 1901 compresses O15；ScrewThe radial displacement transducer seat 1701 of 18 traverse radial displacement transducers 17 is connected with the radial magnetic bearing seat 1901 of radial magnetic bearing 19；Flywheel rotor 7 is contained in and is propped up in the inner chamber that support component 16 is in turn connected to form from bottom to top by base 3, motor stator 12, radial magnetic bearing 19, radial displacement transducer 17 and upper end；Matching with the endoporus of lower mechanical bearing 2 in the lower end of flywheel rotor 7, compresses O RunddichtringO between outer ring and the endoporus of base 3 of lower mechanical bearing 26, axle head locknut 1 is connected with the lower shaft end of flywheel rotor 7 by screw thread, compresses the inner ring of lower mechanical bearing 2；ScrewThe axial force transducer seat 2401 of 4 traverse axial force transducer assemblies 24 is connected with base 3, the upper surface of the U-shaped set 2402 of axial force transducer assembly 24 is connected with the lower surface, outer ring of lower mechanical bearing 2, the upper end of flywheel rotor 7 penetrates in the endoporus of upper mechanical bearing 1602 that support component 16 is propped up in upper end, there is the radial clearance of 0.5mm between the upper end axle journal of endoporus and flywheel rotor 7；ScrewThe Axial Magnetic Bearing seat 1101 of 10 traverse Axial Magnetic Bearings 11 is connected with the electric machine casing 1201 of motor stator 12；ScrewThe radial displacement transducer seat 1701 of 18 traverse radial displacement transducers 17 is connected with the radial magnetic bearing seat 1901 of radial magnetic bearing 19.
Embodiment 11:
The accumulated energy flywheel device that a kind of magnetic force described in above-described embodiment and mechanical bearing mixing support, the magnetic force that this product is proposed and mechanical bearing mixing support the concrete processing of accumulated energy flywheel device and assembling technology procedure is further described:
As shown in Figure 1, magnetic force and mechanical bearing mixing support accumulated energy flywheel device by axle head locknut 1,2 lower mechanical bearings 2, base 3, screws4, O5, O6, flywheel rotor 7, O8, screw9, screw10, Axial Magnetic Bearing 11, motor stator 12, screw13, screw14, O15, support component 16, radial displacement transducer 17, screw are propped up in upper end18, radial magnetic bearing 19, O20, air exhaust nozzle 21, O22, screw23, axial force transducer assembly 24 forms.Lower mechanical bearing 2, screw4, O5, O6, O8, screw9, screw10, screw13, screw14, O15, screw18, O20, O22, screw23 is GB standard component；Axle head locknut 1 adopts steel 40Cr turning to complete；Base 3 adopts cast blank, and material is cast steel or spheroidal graphite cast-iron, completes processing by turning and drilling；Air exhaust nozzle 21 adopts rustless steel 1Cr18Ni9Ti Workpiece Turning to machine；Flywheel rotor 7, Axial Magnetic Bearing 11, motor stator 12, upper end prop up support component 16, radial displacement transducer 17, radial magnetic bearing 19, axial force transducer assembly 24 are assembly, and its processing and assembling process are described separately in subsequent paragraph in conjunction with accompanying drawing 2, accompanying drawing 3, accompanying drawing 4, accompanying drawing 5, accompanying drawing 6, accompanying drawing 8 and accompanying drawing 10.
In accompanying drawing 1, the assembling of each part and assembly and connection procedure be: by O6 are installed in the cannelure in 3 times stomidiums of base；Being loaded by 2 mechanical bearings 2 in the hole of base 3 lower end, the outer ring of mechanical bearing 2 compresses O6, the step end face of the 3 times stomidiums in the upper surface, outer ring of mechanical bearing 2 and base is connected；The lower shaft end of flywheel rotor 7 being loaded in the endoporus of mechanical bearing 2, the lower shaft end step surface of flywheel rotor 7 is connected with the inner ring upper surface of mechanical bearing 2；By axle head locknut 1 by being threaded onto on the lower shaft end screw thread of flywheel rotor 7, the upper surface of axle head locknut 1 is connected with the inner ring lower surface of mechanical bearing 2；By OIn 5 cannelures being installed in axial force transducer assembly 24 axial force transducer seat 2401 upper surface, use screwThe via of 4 traverse axial force transducer seat 2401 upper surfaces, is installed to the lower surface of base 3, and axial force transducer seat 2401 upper surface is connected with the lower surface of base 3, compresses O between composition surface5, the upper surface of the U-shaped set 2402 of axial force transducer assembly 24 is connected with the lower surface, outer ring of mechanical bearing 2；The lower surface of the upper surface of Axial Magnetic Bearing 11 with motor stator 12 is connected, uses screw10 are connected on motor stator 12 through Axial Magnetic Bearing 11；By OIn 8 cannelures being installed to motor stator 12 lower surface, being installed on base 3 by motor stator 12, the lower surface of motor stator 12 is connected with the upper surface of base 3, compresses O between composition surface8, screwThe via of 9 traverse motor stator 12 lower surfaces is connected on base 3；By OIn 20 cannelures being installed in radial magnetic bearing 19 radial magnetic bearing seat 1901 lower end, radial magnetic bearing 19 is installed to the upper end of motor stator 12, the lower end of radial magnetic bearing seat 1901 is connected with the upper end of motor stator 12, compresses O between composition surface20, screwThe via of 13 traverse radial magnetic bearing seats 1901, is connected with the motor stator casing 1201 of motor stator 12；It is installed in radial magnetic bearing 19 by radial displacement transducer 17 upper end of radial magnetic bearing seat 1901, uses screw18, through the via of radial displacement transducer seat 1701 in radial displacement transducer 17, are connected with radial magnetic bearing seat 1901；By O15 are installed to upper end props up in support component 16 in the annular groove of upper shaft bearing 1601 lower surface, upper end is propped up support component 16 and is installed to the upper end of radial magnetic bearing 19, upper shaft bearing 1601 lower surface is connected with the upper surface of radial magnetic bearing seat 1901, compresses O between composition surface15, the incoming upper end of upper axle head of flywheel rotor 7 is propped up in support component 16 in the endoporus of upper mechanical bearing 1602, there is gap, by screw between axle and holeThe via of 14 traverse upper shaft bearings 1601, is connected with radial magnetic bearing seat 1901；By OIn 22 cannelures being installed to air exhaust nozzle 21, by screwThe via of 23 traverse air exhaust nozzles 21, is connected with base 3, compresses O between the composition surface of air exhaust nozzle 21 and base 322。
Below in conjunction with accompanying drawing 2 ~ accompanying drawing 10, processing and assembling technology procedure to each assembly are further described.
As shown in Figure 2, flywheel rotor 7 is made up of flywheel 701, magnetic steel of motor lower end magnetism-isolating loop 702, rotor silicon steel sheet lamination 703, magnetic steel of motor 704, magnetic steel of motor sheath 705, magnetic steel of motor upper end magnetism-isolating loop 706, radial direction magnetic bearing rotor lower end magnetism-isolating loop 707, radial direction magnetic bearing rotor silicon steel sheet lamination 708, radial direction magnetic bearing rotor upper end magnetism-isolating loop 709 and radial displacement transducer detection ring 710.Flywheel 701 adopts high strength alloy steel 40CrNiMo or 35CrMnSiA rough forging, makes through turning and grinding；Magnetic steel of motor lower end magnetism-isolating loop 702, magnetic steel of motor sheath 705, magnetic steel of motor upper end magnetism-isolating loop 706, radial direction magnetic bearing rotor lower end magnetism-isolating loop 707 and radial direction magnetic bearing rotor upper end magnetism-isolating loop 709 all adopt rustless steel 1Cr18Ni9Ti or titanium alloy TC 4 material, complete through turning and grinding；Rotor silicon steel sheet lamination 703 and radial direction magnetic bearing rotor silicon steel sheet lamination 708 all adopt silicon steel sheet 35DW, through punching press, make annealing treatment, laminate molding after grind endoporus and cylindrical completes processing；Magnetic steel of motor 704 is tile-type, and pole orientation circumferentially N-S alternates, and adopts samarium-cobalt alloy or Nd Fe B alloys N48M, by line excision forming, completes after parallel magnetization；Radial displacement transducer detection ring 710 adopts steel 40Cr or rustless steel 2Cr13 material, is completed by turning and grinding.
In accompanying drawing 2, the assembling of each part and assembly and connection procedure be: is heated by magnetic steel of motor lower end magnetism-isolating loop 702, elastic conjunction is to the axle of flywheel 701, the endoporus of magnetic steel of motor lower end magnetism-isolating loop 702 is connected with the axle of flywheel 701, and the lower surface of magnetic steel of motor lower end magnetism-isolating loop 702 is connected with the upper surface of flywheel 701；Rotor silicon steel sheet lamination 703 is heated, elastic conjunction is to the axle of flywheel 701, the endoporus of rotor silicon steel sheet lamination 703 is connected with the axle of flywheel 701, and the lower surface of rotor silicon steel sheet lamination 703 is connected with the upper surface of magnetic steel of motor lower end magnetism-isolating loop 702；Being bonded to by magnetic steel of motor 704 with A/B glue on the cylindrical of rotor silicon steel sheet lamination 703, the pole orientation of magnetic steel of motor 704 circumferentially N-S alternates, and the lower surface of magnetic steel of motor 704 is connected with the upper surface of magnetic steel of motor lower end magnetism-isolating loop 702；Until bonding firm after, magnet steel peripheral milling is whittled into smooth cylinder；Being heated by magnetic steel of motor sheath 705, elastic conjunction is to the cylindrical of magnetic steel of motor 704, and the lower surface of magnetic steel of motor sheath 705 is connected with the upper surface of magnetic steel of motor lower end magnetism-isolating loop 702；Being heated by magnetic steel of motor upper end magnetism-isolating loop 706, elastic conjunction is to the axle of flywheel 701, and the lower surface of magnetic steel of motor upper end magnetism-isolating loop 706 is connected with the upper surface of magnetic steel of motor sheath 705；Successively by radial direction magnetic bearing rotor lower end magnetism-isolating loop 707, radial direction magnetic bearing rotor silicon steel sheet lamination 708, radial direction magnetic bearing rotor upper end magnetism-isolating loop 709 and radial displacement transducer detection ring 710 heat, elastic conjunction is to the axle of flywheel 701, the lower surface of radial direction magnetic bearing rotor lower end magnetism-isolating loop 707 is connected with the axle head of flywheel 701, the upper surface of radial direction magnetic bearing rotor lower end magnetism-isolating loop 707 is connected with radial direction magnetic bearing rotor silicon steel sheet lamination 708 lower surface, the lower surface of radial direction magnetic bearing rotor upper end magnetism-isolating loop 709 is connected with the upper surface of radial direction magnetic bearing rotor silicon steel sheet lamination 708, the lower surface that ring 710 is detected with radial displacement transducer in the upper surface of radial direction magnetic bearing rotor upper end magnetism-isolating loop 709 is connected.After having connected, flywheel rotor 7 carries out dynamic balancing measurement and compensation, becomes qualified component after having compensated.
As shown in Figure 3, Axial Magnetic Bearing 11 is made up of Axial Magnetic Bearing seat 1101 and Axial Magnetic Bearing winding 1102.Axial Magnetic Bearing seat 1101 adopts electrical pure iron, mild steel or 1J50 to shape through turning and boring；Axial Magnetic Bearing winding 1102 is formed by enamel-covered wire coiling, in the inner groove of Axial Magnetic Bearing seat 1101, enamel-covered wire is along coiling counterclockwise, in the outer groove of Axial Magnetic Bearing seat 1101, enamel-covered wire is along coiling clockwise, two coilings are series system, end to end, draw two lead-in wires.
As shown in Figure 4, motor stator 12 is by motor stator casing 1201, motor stator lamination cramp 1202, motor stator lamination lower end insulating end plate 1203, motor stator lamination 1204, motor stator lamination upper end insulating end plate 1205, motor stator winding 1206, screw1207, vacuum electrode 1208, O1209, insulation sleeve 1210, copper sleeve nut 1211, motor winding leading-out wire 1212, screw1213 and vacuum sock 1214 form.Screw1207, vacuum electrode 1208, O1209, motor winding leading-out wire 1212, screw1213 and vacuum sock 1214 be standard component, it is possible to from market purchasing；Motor stator casing 1201, by cast aluminium, cast steel or spheroidal graphite cast-iron blank, is completed by turning, Milling Machining and drilling operating；Motor stator lamination cramp 1202 is bent molding by mild steel (such as No. 10 steel or Q235) steel plate；Motor stator lamination lower end insulating end plate 1203 and motor stator lamination upper end insulating end plate 1205 adopt glass fibre fabric swatch, use cut molding；Motor stator lamination 1204 is by the stacked molding of multi-disc after silicon steel sheet punch forming；Motor stator winding 1206 is pressed three-phase windings coiling molding by multiply motor frequency conversion line；Insulation sleeve 1210 adopts teflon rod turning molding；Copper sleeve nut 1211 adopts copper alloy turning to complete.The assembling of each part and assembly and connection procedure be: motor stator lamination 1204 upper end stacks motor stator lamination upper end insulating end plate 1205, axial compression, lower end stacks motor stator lamination lower end insulating end plate 1203,3 parts stacked are carried out axial compression, carry out axial restraint with motor stator lamination cramp 1202, form an entirety；Coiling 3 phase winding in the inserting slot forming overall motor stator lamination 1204, after coiling completes, overall vacuum leaching insullac；After being heated by motor stator casing 1201, motor stator lamination 1204 elastic conjunction of insullac will be soaked in the hole of motor stator casing 1201, making the lower end of motor stator lamination cramp 1202 be connected with the small end face in motor stator casing 1201 hole；By in the right-hand member hole of incoming for motor winding leading-out wire 1212 copper sleeve nut 1211, and weld with copper brazing；By OIn 1209 cannelures loading vacuum electrode 1208, insulation sleeve 1210 is penetrated on the axle of vacuum electrode 1208 right-hand member, vacuum electrode 1208 is connected with copper sleeve nut 1211 by screw thread, the cylindrical of insulation sleeve 1210 is connected with the hole of motor stator casing 1201, vacuum electrode 1208 is connected with motor stator casing 1201, compresses O between composition surface1209, screwThe via of 1207 traverse vacuum electrodes 1208, is connected with motor stator casing 1201；The lead-in wire of the wiring pin of vacuum sock 1214 with Axial Magnetic Bearing 11 is welded, vacuum sock 1214 is connected with motor stator casing 1201, uses screwThe via of 1213 traverse vacuum sock 1214, is connected with motor stator casing 1201.
As shown in Figure 5, support component 16 is propped up by upper shaft bearing 1601, upper mechanical bearing 1602, upper mechanical bearing (ball) cover 1603, screw in upper end1604, vacuum sock 1605 and screw1606 compositions.Upper mechanical bearing 1602, screw1604, vacuum sock 1605 and screw1606 is GB standard component；Upper shaft bearing 1601 is formed by steel 40Cr or 9Cr18 turning, grinding and boring；Upper mechanical bearing (ball) cover 1603 is formed by beryllium-bronze QBe2 or steel 65Mn turning and boring.Upper mechanical bearing 1602 is loaded in the hole of upper shaft bearing 1601, adopt interference fits；By screwThe via of 1604 traverse upper mechanical bearing (ball) covers 1603, is connected with upper shaft bearing 1601, and the upper surface, outer ring of upper mechanical bearing 1602 is connected with upper shaft bearing 1601, and lower surface is connected with upper mechanical bearing (ball) cover 1603；The capillary of vacuum sock 1605 is connected with the lead-out wire scolding tin of radial displacement transducer 17 and 19-radial magnetic bearing, vacuum sock 1605 is connected with upper shaft bearing 1601, screwThe via of 1606 traverse vacuum sock 1605, is connected with upper shaft bearing 1601.
As shown in Figure 6, radial displacement transducer 17 is made up of radial displacement transducer seat 1701, radial displacement probe framework 1702, radial displacement transducer probe coil 1703 and resin glue 1704.Radial displacement transducer seat 1701 rustless steel or aluminum turning, milling and boring are formed, radial displacement probe framework 1702 PEEK or polyimides car are made, and radial displacement transducer probe coil 1703 enamel-covered wire coiling in the cannelure of radial displacement probe framework 1702 forms.The radial displacement probe framework 1702 winding coil is loaded in the hole of radial displacement transducer seat 1701, with the gap between resin glue 1704 embedding radial displacement probe framework 1702 and radial displacement transducer seat 1701.
As shown in Figure 8, radial magnetic bearing 19 is made up of radial magnetic bearing seat 1901, radial magnetic bearing stator lamination 1902, radial magnetic bearing stator winding 1903 and radial magnetic bearing threaded collar 1904.Radial magnetic bearing seat 1901 adopts rustless steel 1Cr18Ni9Ti, titanium alloy TC 4 or aluminium alloy 7050 to be formed through turning, boring；Radial magnetic bearing stator lamination 1902 adopts silicon steel sheet Multi-stacking compaction, interlayer spray insulation paint, after insullac solidifies, cuts cutting molding by line；Radial magnetic bearing stator winding 1903 is formed by the coiling on the iron core of radial magnetic bearing stator lamination 1902 of multiply enamel-covered wire, each winding technique direction is consistent, draw two wiring respectively, and the winding position of two wiring of labelling and wiring are initiating terminals or terminate end；Radial magnetic bearing threaded collar 1904 adopts rustless steel 1Cr18Ni9Ti, titanium alloy TC 4 or aluminium alloy 7050 to be formed through turning.The assembling process of radial magnetic bearing 19 is: heating radial magnetic bearing seat 1901, radial magnetic bearing stator lamination 1902 hot charging of radial magnetic bearing stator winding 1903 will be wound in the hole of radial magnetic bearing seat 1901, making the upper surface of radial magnetic bearing stator lamination 1902 be connected with the step surface in radial magnetic bearing seat 1901 hole；Radial magnetic bearing threaded collar 1904 is threadedly attached to radial magnetic bearing seat 1901, and the upper surface of radial magnetic bearing threaded collar 1904 is connected with the lower surface of radial magnetic bearing stator lamination 1902；By the lead-out wire of radial magnetic bearing stator winding 1903 when carrying out totally assembling shown in accompanying drawing 1, soldering is to the capillary of the vacuum sock 1605 shown in accompanying drawing 5 respectively.
As shown in Figure 10, axial force transducer assembly 24 is by axial force transducer seat 2401, U-shaped set 2402, axial force transducer 2403, screw2404, vacuum sock 2405 and screw2406 compositions.Axial force transducer seat 2401 and U-shaped set 2402 are formed with steel 40Cr or steel 9Cr18 turning and boring respectively, and axial force transducer 2403 is radial or S type pressure force cell, can adopt ocean, Bangbu DYLF series or rice section MIK-LCS series；Screw2404, vacuum sock 2405 and screw2406 is standard component.Axial force transducer 2403 is loaded in the hole of axial force transducer seat 2401, screwThe via of 2404 traverse axial force transducers 2403 is connected with axial force transducer seat 2401, and the bottom surface of axial force transducer 2403 and cylindrical are connected with axial force transducer seat 2401；U-shaped set 2402 is connected with axial force transducer 2403 by screw thread；The capillary of the lead-out wire of axial force transducer 2403 with vacuum sock 2405 is connected, vacuum sock 2405 is installed in the lateral aperture of axial force transducer seat 2401, screwThe via of 2406 traverse vacuum sock 2405, is connected with axial force transducer seat 2401.
Claims (9)
1. the accumulated energy flywheel device that a magnetic force and mechanical bearing mixing support, its composition includes: base (3), it is characterized in that: described base connects axial force transducer assembly (24), flywheel rotor (7), motor stator (12), equipped with Axial Magnetic Bearing (11) between described flywheel rotor and described motor stator, described motor stator connects upper end and props up support component (16), described upper end is propped up support component and is connected radial displacement transducer (17), and described base connects air exhaust nozzle (21).
2. the accumulated energy flywheel device that a kind of magnetic force according to claim 1 and mechanical bearing mixing support, it is characterized in that: equipped with lower mechanical bearing (2) between described base and described flywheel rotor, support component is propped up equipped with radial magnetic bearing (19) in described flywheel rotor and described upper end, described flywheel rotor connects axle head locknut (1), screw between described base and described axial force transducer assemblyAnd O (4)(5) connect fixing, described lower mechanical bearing and connect O(6) equipped with O between, described flywheel rotor and described motor statorAnd pass through screw (8)(9) connection is fixing, passes through screw between described motor stator and described motor stator(10) connection is fixing, and described motor stator and described radial displacement transducer pass through screw(13) fixing, described upper end is propped up between support component and described radial displacement transducer equipped with OAnd pass through screw (15)(14) fixing, described radial magnetic bearing and described radial displacement transducer pass through screw(18) fixing, equipped with O between described radial magnetic bearing and described motor stator(20) equipped with O between, described base and described air exhaust nozzleAnd pass through screw (22)(23) fixing.
null3. the accumulated energy flywheel device that a kind of magnetic force according to claim 1 and mechanical bearing mixing support，It is characterized in that: described flywheel rotor includes flywheel (701)，Described flywheel connects magnetic steel of motor lower end magnetism-isolating loop (702)，Described magnetic steel of motor lower end magnetism-isolating loop connects rotor silicon steel sheet lamination (703)，Described rotor silicon steel sheet lamination connects magnetic steel of motor (704)，Described magnetic steel of motor connects magnetic steel of motor sheath (705)，Described flywheel connects described rotor silicon steel sheet lamination，Described flywheel、Described rotor silicon steel sheet lamination、Described magnetic steel of motor、Described magnetic steel of motor sheath is all connected with magnetic steel of motor upper end magnetism-isolating loop (706)，Described flywheel is sequentially connected with radial direction magnetic bearing rotor lower end magnetism-isolating loop (707)、Radial direction magnetic bearing rotor silicon steel sheet lamination (708)、Radial direction magnetic bearing rotor upper end magnetism-isolating loop (709)、Radial displacement transducer detection ring (710).
4. the accumulated energy flywheel device that a kind of magnetic force according to claim 1 and mechanical bearing mixing support, it is characterized in that: described Axial Magnetic Bearing includes Axial Magnetic Bearing seat (1101), and described Axial Magnetic Bearing seat connects Axial Magnetic Bearing winding (1102)；Described upper end is propped up support component and is included upper shaft bearing (1601), and described upper shaft bearing connects upper mechanical bearing (ball) cover (1603) and passes through screw(1604) fixing, equipped with upper mechanical bearing (1602) between described upper shaft bearing and described upper mechanical bearing (ball) cover, described connection, described upper shaft bearing connects vacuum sock (1605) and passes through screw(1606) fixing.
5. the accumulated energy flywheel device that a kind of magnetic force according to claim 1 and mechanical bearing mixing support, it is characterized in that: described motor stator includes motor stator casing (1201), described motor stator casing connects motor stator lamination cramp (1202), described motor stator lamination cramp connects motor stator lamination lower end insulating end plate (1203), described motor stator lamination lower end insulating end plate connects motor stator lamination (1204), described motor stator lamination connects motor stator lamination upper end insulating end plate (1204), described motor stator lamination upper end insulating end plate connects motor stator winding (1206), described motor stator casing connects vacuum sock (1214) and passes through screw(1213) fixing, described motor stator winding connects motor winding leading-out wire (1212), and described motor winding leading-out wire connects copper sleeve nut (1211), and described motor stator casing connects vacuum electrode (1208) and passes through screw(1207) fixing, equipped with insulation sleeve (1210) and O between described motor stator casing and described motor winding leading-out wire(1209).
6. the accumulated energy flywheel device that a kind of magnetic force according to claim 1 and mechanical bearing mixing support, it is characterized in that: described radial displacement transducer includes (1701) radial displacement transducer seat, described radial displacement transducer seat connects radial displacement probe framework (1702), described radial displacement probe framework connects radial displacement transducer probe coil (1703), and described radial displacement transducer probe coil is fixed by resin glue (1704).
7. the accumulated energy flywheel device that a kind of magnetic force according to claim 2 and mechanical bearing mixing support, it is characterized in that: described radial magnetic bearing includes radial magnetic bearing seat (1901), described radial magnetic bearing seat connects radial magnetic bearing threaded collar (1904), equipped with radial magnetic bearing stator lamination (1902) between the described radial magnetic bearing threaded collar described in radial magnetic bearing seat, described radial magnetic bearing stator lamination connects radial magnetic bearing stator winding (1903).
8. the accumulated energy flywheel device that a kind of magnetic force according to claim 1 and mechanical bearing mixing support, it is characterized in that: described axial force transducer assembly includes axial force transducer seat (2401), and described axial force transducer seat connects axial force transducer (2403) and passes through screw(2404), described axial force transducer connects U-shaped set (2402), and described axial force transducer seat connects vacuum sock (2405) and passes through screw(2406) fixing.
9. the accumulated energy flywheel device that a kind of magnetic force according to claim 1 and mechanical bearing mixing support, it is characterized in that: described flywheel rotor assembly (7) lower end is supported by lower mechanical bearing (1) radial rigidity, upper end supported by radial magnetic bearing (19) radial compliance, supported at lower end axial stiffness by axial force transducer assembly (24), attracted flywheel rotor (7) by Axial Magnetic Bearing (11) upwards magnetic force, bear the weight of flywheel rotor (7) 9095%；Flywheel rotor (7) exists between upper surface and the lower surface of Axial Magnetic Bearing (11) of flywheel the gap of 0.5 ~ 1mm, between upper axial end and endoporus and the lower surface of upper mechanical bearing of flywheel rotor (7), all there is the gap of 0.5 ~ 1mm.
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| CN106655604A (en) * | 2016-11-10 | 2017-05-10 | 清华大学 | Sealing locking mechanism of flywheel energy storage set, and operation method thereof |
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| CN111541336A (en) * | 2020-07-08 | 2020-08-14 | 沈阳微控新能源技术有限公司 | Flywheel energy storage system |
| CN112621133B (en) * | 2020-12-21 | 2021-12-07 | 中国人民解放军军事科学院国防工程研究院 | Machining method of motor stator shell assembly for energy storage flywheel |
| CN112621133A (en) * | 2020-12-21 | 2021-04-09 | 中国人民解放军军事科学院国防工程研究院 | Machining method of motor stator shell assembly for energy storage flywheel |
| US20220320955A1 (en) * | 2021-03-30 | 2022-10-06 | Amber Kinetics, Inc. | Motor/Generator With Atmospheric Stator Pressure |
| US11682943B2 (en) * | 2021-03-30 | 2023-06-20 | Amber Kinetics, Inc. | Motor/generator with atmospheric stator pressure |
| CN113315295A (en) * | 2021-06-30 | 2021-08-27 | 平高集团有限公司 | Flywheel energy storage device |
| CN113315295B (en) * | 2021-06-30 | 2022-07-15 | 平高集团有限公司 | Flywheel energy storage device |
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