CN103867639A - High-energy-storage flywheel rotor and manufacturing method thereof - Google Patents
High-energy-storage flywheel rotor and manufacturing method thereof Download PDFInfo
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- CN103867639A CN103867639A CN201210529742.4A CN201210529742A CN103867639A CN 103867639 A CN103867639 A CN 103867639A CN 201210529742 A CN201210529742 A CN 201210529742A CN 103867639 A CN103867639 A CN 103867639A
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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
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Abstract
The invention relates to a high-energy-storage flywheel rotor and a manufacturing method thereof. The flywheel rotor is composed of a metal hub and a composite material rim. The metal hub is made of a high strength alloy steel material and is formed in an inblock cast mode. The rim includes three fiber reinforced composite material rings which sequentially sleeve the hub in an interference assembly mode. The three fiber reinforced composite material rings are formed through a wet method winding process, and a gradation winding curing process and a tension decreasing winding process are adopted in the manufacturing process. By means of the three-layer structure obtained through tension winding and interference fit assembly, the radial stress distribution of a flywheel is changed, prestress is generated among the layers, and the flywheel is not delaminated or loosed even under high rotating speed. The problem that high rotating speed flywheel use cannot be met by metal flywheel strength, low energy storage efficiency and the like is solved, and the flywheel use safety and reliability are greatly improved.
Description
Technical field
The present invention relates to a kind of large accumulated energy flywheel rotor and preparation method thereof.
Technical background
Flywheel energy storage is electric energy, wind energy, solar energy equal energy source to be changed into a kind of new and effective mechanical energy storage technology that the rotation function of flywheel is stored.Since nearly more than ten years, along with the breakthrough of the series of key techniques such as novel high-strength fibrous composite, electromagnetic suspension bearing and Power Electronic Technique, the superiority of composite flywheel energy-storage system shows gradually, compared with steel flywheel, the advantage of the aspects such as it has that energy storage density is high, lightweight, the life-span is long, makes it have a wide range of applications at numerous areas such as electric vehicle, Aero-Space, peak load regulation network, uninterruptable power supply (UPS) standby power supplies.
The energy storage capacity that improves flywheel has two approach: (1) increases flywheel rotor rotary inertia; (2) improve Speed of Reaction Wheels.In this field, need to solve problem aspect four: the material of (1) rotor is selected; (2) structural design of rotor; (3) preparation process of rotor; (4) assembly technology of rotor.At present domestic the research of flywheel rotor is mainly concentrated in structural design, to the rare research of its making method, especially energy storage capacity reaches 20KWh, and rotating speed exceedes the flywheel rotor of 20000r/min, its composite material portion size is difficult to greatly moulding, and radially layering easily occurs.
Summary of the invention
In existing patent and report, also not about the manufacture of 20KWh accumulated energy flywheel, the present invention has mainly proposed a kind of energy storage capacity and has reached 20KWh, and rotating speed is greater than the making method of the composite flywheel rotor of 2000r/min.Wheel hub adopts cast inblock, and wheel rim adopts wet winding technology technology, and by tension force is wound around, the method such as multi-ring pressfit solved large-sized composite material flywheel and has been difficult to moulding and the problem of easy layering radially.
The technical solution adopted in the present invention is: a kind of large accumulated energy flywheel rotor, comprise metal wheel hub and wheel rim, described wheel rim is for being multilayer carbon fibre reinforced composite ring structure, metal wheel hub surface is wound with glass fibre reinforced composion, and multilayer carbon fibre reinforced composite ring is wound with on the metal wheel hub of glass fibre reinforced composion through interference assembly set dress and surface successively.
The present invention also has following feature:
1, described flywheel rotor external diameter is 786mm, and metal wheel hub diameter is 516mm.
2, the magnitude of interference between described metal wheel hub and three rings is 0.30mm-0.40mm.
3, between the fitting surface of interference assembling, be splicing.
4, described wheel ring thickness is 40mm-50mm.
5, the glass fibre reinforced composion thickness being wound around is 3mm.
6, the tensile strength of described metal wheel hub reaches 2.0Gpa.
7, a making method for large accumulated energy flywheel rotor, the moulding respectively of metal wheel hub and wheel rim, then assemble, method is as follows:
(1) metal wheel hub casting comprises the following steps: making wooden model, core, mould assembling cast, foundry goods carry out shake out sand removal, gas cutting rising head after being incubated in sandbox, complete casting, then the method combining through cold and hot working, obtains metal wheel hub through last finish turning;
The making method of (2) three carbon fibre reinforced composite rings: wheel rim comprises three carbon fibre reinforced composite rings, the forming process of each carbon fibre reinforced composite ring is as follows: whole process adopts wet-winding craft, and being hoop is wound around, adopting two kinds of different carbon fibre materials to mix twines, from creel continuous carbon fibre process dipping method out, glue groove epoxy resin-impregnated, after impregnation, be wound into again on core through filter Jiao Kou, whole process adopts hoop to be wound around, be the axis uniform motion of core around oneself, silk mouth is being parallel to core axial direction moving linearly, the every rotation of core one week, silk mouth moves a yarn sheet width, be pitch, so circulation is gone down, and fiber is followed successively by a circulation along core axial reciprocating, ensures that yarn sheet joins but non-intersect when winding, adopt gradation cured epoxy resin, be first wound around certain thickness, this thickness is less than 15mm, be cured, each solidifying need to take off the whole baking oven of putting into from rotating shaft by the core that has twined carbon fiber, after it has solidified, is wound around again, until single ring has been wound around, reaches design size again, after single ring has solidified by it from the core demoulding, obtain final fibre reinforced composites ring,
(3) be wound around transition layer: be directly wound around glass fibre reinforced composion on metal wheel hub surface, as the transition layer of metal wheel hub and carbon fibre reinforced composite, thickness is 3mm, identical with the canoe of three rings of wheel rim, for Wet Winding Process, and winding direction is hoop;
(4) carbon fibre reinforced composite ring winding being completed and metal wheel hub carry out the processing of internal-and external diameter fit dimension, take order from inside to outside, and magnitude of interference increase gradually from inside to outside, and magnitude of interference is at 0.30mm-0.40mm; Then carry out machining, after processing, the circularity of the internal-and external diameter of each composite material wheel rim is in 0.05mm, the tolerance of each fitting surface is in 0.05mm, and the carbon fibre reinforced composite ring after processing should can carry out assembly technology except after water treatment with the metal wheel hub that is wound with transition layer; First processing is wrapped in the external diameter of the glass fiber compound material on metal wheel hub and the internal diameter of first ring, and then the two is set with, and cover process of assembling is realized by great tonnage press; Metal wheel hub is placed on ganoid tooling base, then coats room-temperature curing epoxy adhesive on glass fibre reinforced composion surface, then first ring level is placed on metal wheel hub, and then cover cover plate, be placed on press and press-fit; The second ring and the 3rd ring press-fit process and above-mentioned first ring to press-fit process identical, be also first to process outside diameter of inner ring reprocessing bore diameter of outer ring, do equally splicing processing; Finally reprocess wheel rim external diameter to design size, and carry out polishing, finally obtain flywheel rotor of the present invention.
8, mixed the twining of described carbon fibre material selected carbon fiber T700 and M40J, and matrix is epoxy resin; Glass fibre reinforced composion is s glass fibre, and resin matrix is epoxy resin 5208.
9, described dipping method is rubber roll contact method, by regulating scraper and rubber roll distance, controls gel content with the bondline thickness that changes rubber roll surface.
The present invention compared with prior art advantage is: rotor hub of the present invention adopts high tensile steel, and wheel rim adopts carbon fiber composite, makes rotor can bear higher rotating speed, has increased energy storage density.Stress distribution when carbon fiber composite ring interference rigger artistic skill is effectively improved wheel body high speed rotating, the circumference stress that wheel rim material is born reduces, thereby makes wheel body reach higher rotating speed.The gradation wound and solidified technique of composite material ring and the tension force winding process that successively decreases, can effectively improve the manufacturing efficiency of carbon fiber composite and effectively avoid the generation of defect in forming process.。The invention solves that metal flywheel strength, energy storage efficiency are low etc. cannot meet the problem that high rotating speed flywheel uses, greatly improved Security, reliability that flywheel uses.
Brief description of the drawings
Fig. 1 is for the present invention relates to flywheel rotor three-dimensional structure schematic diagram.
Fig. 2 is for the present invention relates to flywheel rotor two-dimensional structure schematic diagram.
Fig. 3 is for the present invention relates to wet-winding craft schematic diagram.
Fig. 4 press-fits schematic diagram for the present invention relates to first ring.
Fig. 5 has all press-fited rear schematic diagram for the present invention relates to three rings.
Embodiment
Embodiment 1
As shown in Figure 1-2, a kind of large accumulated energy flywheel rotor, comprise metal wheel hub and wheel rim, described wheel rim is for being multilayer carbon fibre reinforced composite ring structure, metal wheel hub surface is wound with glass fibre reinforced composion, and multilayer carbon fibre reinforced composite ring is wound with on the metal wheel hub of glass fibre reinforced composion through interference assembly set dress and surface successively.Wherein metal wheel hub external diameter or wheel rim internal diameter are 516mm, and composite material wheel rim external diameter is 786mm, are highly 250mm, and central shaft diameter is 100mm.
The rotor rim section ring, the radial stress that obtain according to finite element analysis distribute, rim section has been divided into three rings, increase magnitude of interference at interannular, the radial stress that has changed like this flywheel distributes, produced precompression at interlayer, though make flywheel under design speed 25000r/min, turn round still not stratified, do not get loose.
Through optimizing, finally determine that the thickness of three fiber reinforcement rings of composite material wheel rim is from being 10mm～50mm, magnitude of interference is 0.3mm～0.40mm.
Embodiment 2
The making method of a kind of flywheel rotor involved in the present invention, wheel hub and wheel rim are selected different materials moulding respectively, then assemble, and wheel hub and wheel rim forming method are specific as follows:
Accumulated energy flywheel wheel hub casting method, comprise the following steps: making wooden model, core, mould assembling cast, foundry goods carry out shake out sand removal, gas cutting rising head after being incubated in sandbox, complete the casting of accumulated energy flywheel wheel hub, the method then combining through cold and hot working, obtains flywheel hub through last finish turning.
Flywheel rotor wheel rim involved in the present invention, is made up of three fibre reinforced composites rings, and the forming process of single fibre reinforced composites ring is as follows:
Whole process adopts wet-winding craft, winding process schematic diagram as shown in Figure 3, and being hoop is wound around, carbon fiber is selected T700 and M40J, from creel continuous fiber process glue groove epoxy resin-impregnated out, after impregnation, be wound into again on core through filter Jiao Kou, whole process adopts hoop to be wound around, be the axis uniform motion of core around oneself, silk mouth is being parallel to core axial direction moving linearly, the every rotation of core one week, silk mouth moves a yarn sheet width (being pitch), so circulation is gone down, fiber is followed successively by a circulation along core axial reciprocating, when winding, ensure that yarn sheet joins but non-intersect.
Dipping method is rubber roll contact method, by regulating scraper and rubber roll distance, controls gel content with the bondline thickness that changes rubber roll surface.
Once be wound around and can not ensure resin solidification quality because wheel rim is thicker, so adopting gradation solidifies, be first wound around certain thickness, thickness is less than 15mm, be cured, each solidifying need to take off the whole baking oven of putting into from rotating shaft by the core that has twined carbon fiber, after it has solidified, is wound around again again, until single ring has been wound around, reach design size.After single ring has solidified by it from the core demoulding, obtain final fibre reinforced composites ring.
Consider that metal and carbon fiber thermal coefficient of expansion differ greatly, directly be wound around glass fibre reinforced composion on metal wheel hub surface, glass fibre reinforced composion is s glass fibre, resin matrix is epoxy resin 5208, as the transition layer of metal and carbon fibre reinforced composite, thickness is 3mm left and right, identical with the canoe of three rings of wheel rim, for Wet Winding Process, and winding direction is hoop.
Each wheel rim that winding is completed and wheel hub carry out the processing of internal-and external diameter fit dimension, and order is from inside to outside taked in the assembling of each wheel rim, and magnitude of interference increase gradually from inside to outside, and magnitude of interference is between 0.30mm～0.40mm.Machining need select composite material specialty cutting tool to process, after processing, the circularity of the internal-and external diameter of each composite material wheel rim is in 0.05mm, the tolerance of each fitting surface ensures in 0.05mm, after machining composite material wheel rim, should can carry out assembly technology except after water treatment.
Concrete processing and suit step are: first process the external diameter of wheel hub upper glass fibrous composite and the internal diameter of first ring, then the two is set with, and cover process of assembling is realized by great tonnage press.The wheel hub processing is placed on ganoid tooling base, then the double-component cold curing epoxy adhesive that to coat with curing agent mass ratio on glass fibre reinforced composion surface be 5: 1, again first ring level is placed on wheel hub, with 1: 400 tapering, as shown in Figure 4, and then cover cover plate, be placed on press and press-fit.The second ring and the 3rd ring press-fit process and above-mentioned first ring to press-fit process identical, be also first to process outside diameter of inner ring reprocessing bore diameter of outer ring, do equally splicing processing, after completing as shown in Figure 5.Finally reprocess wheel rim external diameter to design size, and carry out polishing, finally obtain flywheel rotor of the present invention.
Claims (10)
1. a large accumulated energy flywheel rotor, comprise metal wheel hub and wheel rim, it is characterized in that: described wheel rim is for being multilayer carbon fibre reinforced composite ring structure, metal wheel hub surface is wound with glass fibre reinforced composion, and multilayer carbon fibre reinforced composite ring is wound with on the metal wheel hub of glass fibre reinforced composion through interference assembly set dress and surface successively.
2. the large accumulated energy flywheel rotor of one according to claim 1, is characterized in that: described flywheel rotor external diameter is 786mm, metal wheel hub diameter is 516mm.
3. the large accumulated energy flywheel rotor of one according to claim 1, is characterized in that: the magnitude of interference between described metal wheel hub and three rings is 0.30mm-0.40mm.
4. the large accumulated energy flywheel rotor of one according to claim 1, is characterized in that: between the fitting surface of interference assembling, be splicing.
5. the large accumulated energy flywheel rotor of one according to claim 1, is characterized in that: described wheel ring thickness is 40mm-50mm.
6. the large accumulated energy flywheel rotor of one according to claim 1, is characterized in that: the glass fibre reinforced composion thickness of winding is 3mm.
7. the large accumulated energy flywheel rotor of one according to claim 1, is characterized in that: the tensile strength of described metal wheel hub reaches 2.0Gpa.
8. a making method for large accumulated energy flywheel rotor, the moulding respectively of metal wheel hub and wheel rim, then assemble, it is characterized in that, method is as follows:
(1) metal wheel hub casting comprises the following steps: making wooden model, core, mould assembling cast, foundry goods carry out shake out sand removal, gas cutting rising head after being incubated in sandbox, complete casting, then the method combining through cold and hot working, obtains metal wheel hub through last finish turning;
The making method of (2) three carbon fibre reinforced composite rings: wheel rim comprises three carbon fibre reinforced composite rings, the forming process of each carbon fibre reinforced composite ring is as follows: whole process adopts wet-winding craft, and being hoop is wound around, adopting two kinds of different carbon fibre materials to mix twines, from creel continuous carbon fibre process dipping method out, glue groove epoxy resin-impregnated, after impregnation, be wound into again on core through filter Jiao Kou, whole process adopts hoop to be wound around, be the axis uniform motion of core around oneself, silk mouth is being parallel to core axial direction moving linearly, the every rotation of core one week, silk mouth moves a yarn sheet width, be pitch, so circulation is gone down, and fiber is followed successively by a circulation along core axial reciprocating, ensures that yarn sheet joins but non-intersect when winding, adopt gradation cured epoxy resin, be first wound around certain thickness, this thickness is less than 15mm, be cured, each solidifying need to take off the whole baking oven of putting into from rotating shaft by the core that has twined carbon fiber, after it has solidified, is wound around again, until single ring has been wound around, reaches design size again, after single ring has solidified by it from the core demoulding, obtain final fibre reinforced composites ring,
(3) be wound around transition layer: be directly wound around glass fibre reinforced composion on metal wheel hub surface, as the transition layer of metal wheel hub and carbon fibre reinforced composite, thickness is 3mm, identical with the canoe of three rings of wheel rim, for Wet Winding Process, and winding direction is hoop;
(4) interference fit: the carbon fibre reinforced composite ring that winding is completed and metal wheel hub carry out the processing of internal-and external diameter fit dimension, take order from inside to outside, and magnitude of interference increase gradually from inside to outside, magnitude of interference is at 0.30mm-0.40mm; Then carry out machining, after processing, the circularity of the internal-and external diameter of each composite material wheel rim is in 0.05mm, the tolerance of each fitting surface is in 0.05mm, and the carbon fibre reinforced composite ring after processing should can carry out assembly technology except after water treatment with the metal wheel hub that is wound with transition layer; First processing is wrapped in the external diameter of the glass fiber compound material on metal wheel hub and the internal diameter of first ring, and then the two is set with; Metal wheel hub is placed on ganoid tooling base, then coats room-temperature curing epoxy adhesive on glass fibre reinforced composion surface, then first ring level is placed on metal wheel hub, then cover cover plate, be placed on press and press-fit; The second ring and the 3rd ring press-fit process and above-mentioned first ring to press-fit process identical, be also first to process outside diameter of inner ring reprocessing bore diameter of outer ring, do equally splicing processing; Finally reprocess wheel rim external diameter to design size, and carry out polishing, finally obtain flywheel rotor of the present invention.
9. the making method of a kind of large accumulated energy flywheel rotor according to claim 8, is characterized in that: mixed the twining of described carbon fibre material selected carbon fiber T700 and M40J, and matrix is epoxy resin; Glass fibre reinforced composion is s glass fibre, and resin matrix is epoxy resin 5208.
10. the making method of a kind of large accumulated energy flywheel rotor according to claim 8, is characterized in that: described dipping method is rubber roll contact method, by regulating scraper and rubber roll distance, controls gel content with the bondline thickness that changes rubber roll surface.
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| CN201210529742.4A CN103867639A (en) | 2012-12-11 | 2012-12-11 | High-energy-storage flywheel rotor and manufacturing method thereof |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104505976A (en) * | 2014-12-01 | 2015-04-08 | 核工业理化工程研究院 | Layered-solidification energy-storage flywheel and manufacture method therefor |
| CN108274774A (en) * | 2018-01-18 | 2018-07-13 | 上海交通大学 | The molding preparation process of the co-curing of metal and composite flywheel |
| CN108880087A (en) * | 2018-08-15 | 2018-11-23 | 中国电子科技集团公司第十六研究所 | A kind of accumulated energy flywheel in high temperature superconducting magnetic suspension energy accumulation system |
| CN109079434A (en) * | 2018-08-09 | 2018-12-25 | 蒋福机 | A kind of production method of cluster guide wheel |
| GB2566461A (en) * | 2017-09-13 | 2019-03-20 | Element Power Ireland Ltd | Adding inertia in electrical power systems |
| CN110422344A (en) * | 2019-08-12 | 2019-11-08 | 航天材料及工艺研究所 | A kind of satellite compound flywheel of large rotating inertia lightweight and preparation method thereof |
| CN110815850A (en) * | 2019-11-26 | 2020-02-21 | 上海交通大学 | Preparation method for optimizing energy storage density of composite material and metal co-curing flywheel |
| CN111114735A (en) * | 2019-12-26 | 2020-05-08 | 中国科学院光电研究院 | Lightweight flywheel and method for manufacturing same |
| CN111435804A (en) * | 2019-01-14 | 2020-07-21 | 坎德拉（深圳）科技创新有限公司 | Flywheel energy storage device and flywheel rotor |
| CN111435805A (en) * | 2019-01-14 | 2020-07-21 | 坎德拉（深圳）科技创新有限公司 | Flywheel energy storage device, flywheel rotor and metal hub thereof |
| CN111946775A (en) * | 2019-05-15 | 2020-11-17 | 深圳市中科金朗产业研究院有限公司 | Flywheel outer ring and flywheel body |
| CN112364459A (en) * | 2020-11-19 | 2021-02-12 | 中国核动力研究设计院 | Method for obtaining optimized parameters of tungsten alloy flywheel sleeved with multiple rings |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104505976A (en) * | 2014-12-01 | 2015-04-08 | 核工业理化工程研究院 | Layered-solidification energy-storage flywheel and manufacture method therefor |
| GB2566461A (en) * | 2017-09-13 | 2019-03-20 | Element Power Ireland Ltd | Adding inertia in electrical power systems |
| CN108274774A (en) * | 2018-01-18 | 2018-07-13 | 上海交通大学 | The molding preparation process of the co-curing of metal and composite flywheel |
| CN108274774B (en) * | 2018-01-18 | 2021-01-08 | 上海交通大学 | Preparation process for co-curing molding of metal and composite material flywheel |
| CN109079434A (en) * | 2018-08-09 | 2018-12-25 | 蒋福机 | A kind of production method of cluster guide wheel |
| CN108880087A (en) * | 2018-08-15 | 2018-11-23 | 中国电子科技集团公司第十六研究所 | A kind of accumulated energy flywheel in high temperature superconducting magnetic suspension energy accumulation system |
| CN111435804A (en) * | 2019-01-14 | 2020-07-21 | 坎德拉（深圳）科技创新有限公司 | Flywheel energy storage device and flywheel rotor |
| CN111435805A (en) * | 2019-01-14 | 2020-07-21 | 坎德拉（深圳）科技创新有限公司 | Flywheel energy storage device, flywheel rotor and metal hub thereof |
| CN111946775A (en) * | 2019-05-15 | 2020-11-17 | 深圳市中科金朗产业研究院有限公司 | Flywheel outer ring and flywheel body |
| CN111946775B (en) * | 2019-05-15 | 2024-01-26 | 深圳市中科金朗产业研究院有限公司 | Flywheel outer ring and flywheel body |
| CN110422344A (en) * | 2019-08-12 | 2019-11-08 | 航天材料及工艺研究所 | A kind of satellite compound flywheel of large rotating inertia lightweight and preparation method thereof |
| CN110422344B (en) * | 2019-08-12 | 2021-06-11 | 航天材料及工艺研究所 | Large-rotational-inertia light composite flywheel for satellite and preparation method thereof |
| CN110815850A (en) * | 2019-11-26 | 2020-02-21 | 上海交通大学 | Preparation method for optimizing energy storage density of composite material and metal co-curing flywheel |
| CN111114735A (en) * | 2019-12-26 | 2020-05-08 | 中国科学院光电研究院 | Lightweight flywheel and method for manufacturing same |
| CN111114735B (en) * | 2019-12-26 | 2022-01-21 | 中国科学院光电研究院 | Lightweight flywheel and method for manufacturing same |
| CN112364459A (en) * | 2020-11-19 | 2021-02-12 | 中国核动力研究设计院 | Method for obtaining optimized parameters of tungsten alloy flywheel sleeved with multiple rings |
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