CN1242826A - Integral composite flywheel rim and hub - Google Patents
Integral composite flywheel rim and hub Download PDFInfo
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- CN1242826A CN1242826A CN 97198635 CN97198635A CN1242826A CN 1242826 A CN1242826 A CN 1242826A CN 97198635 CN97198635 CN 97198635 CN 97198635 A CN97198635 A CN 97198635A CN 1242826 A CN1242826 A CN 1242826A
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- flywheel
- spoke
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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
A fiber-reinforced composite hub (6) has a plurality of fiber-reinforced spokes (7) having first portions (9) which define a drive shaft bore (3) and second portions which mate to an innermost layer of a fiber-reinforced flywheel rim (10). Both the rim (10) and hub (6) are preferably produced as stabilized preforms which are integrally or separately formed, then assembled and placed into a mold for molding into a unitary structure.
Description
The present invention relates to fibre-reinforced compound flywheel, more specifically say to relate to a kind of fibre-reinforced flywheel rim and wheel hub that fibre-reinforced compound flywheel hub and/or a kind of integral body of spoke are arranged.
Fibre-reinforced compound flywheel once was proposed as the energy storage system of vehicle and utility supplementary energy.But a fiber composite flywheel that gear to actual circumstances, reasonable price once was difficult to make.
The energy that is stored in the flywheel depends on the quality of wheel rim and the angular velocity of flywheel.The storage energy along with rotational speed square and become.Storable energy is subjected to the restriction of its rotating speed in given flywheel, and this rotating speed depends on the intensity of the material of constructing flywheel and the generation of various stress and the mode of distribution in flywheel.
Flywheel was once being made by metal such as high tensile steel traditionally.But to given weight, steel is because its high density, is to be not suitable for being used for making the flywheel that can store macro-energy.Found once that the flywheel produced can provide significant benefit when having fibre-reinforced compound wheel rim, because material therefor has the density more much lower than steel, simultaneously the intensity that equates with steel is at least arranged but, and in some cases, intensity was more than the steel height.
The flywheel rim of this fiber-reinforced composite was once manufactured to come out, for example with the tow coiling and by hand a plurality of pre-soaked layers are built height, and as U. S. Patent 4,102,221 and 4,226,442 is illustrated.
Owing to act on power difference on the wheel hub, and wheel rim need cooperate with the live axle of metal by wheel hub, so the typical way of the wheel rim of fiber-reinforced composite is to combine with metal wheel hub.But again following problem can take place, because compound wheel rim and metal wheel hub are different in the performance that increases with on the fatigue, wheel rim are expanded to leave wheel hub and cause separation when installing to discrete compound wheel rim on the metal wheel hub.And because both performance differences, wheel hub can lose efficacy before wheel rim usually.Like this, metal wheel hub usually determines the working life of flywheel.
Wheel hub is the important component of flywheel, because for stored energy, it must be sent to flywheel rim from live axle with power, and conversely, it also must transfer back to axle so that effectively utilize the rotating mechanical energy of flywheel from flywheel with rotating force.In addition, as the most flexible member in the rotating member, the dynamic response of wheel hub is being controlled the vibration and the life-span of whole rotational structure.
U. S. Patent 4,341,001 once disclosed the wheel hub and the axle of an integral body, and it is made of two circular metal sections with shallow disc shape.On the internal surface of each section, fixing columniform metal bar (rod) with welding.These two sections with shallow disc shape are placed on together and for good and all link together with welding, and this shaped structure can be crushed along with the raising of speed, thereby the growth that can increase wheel hub adapts to the growth of wheel rim.Each section respectively have one coaxial and the alignment axial region vertically, separated by a gap between them, make shallow discoid portion collapsible under high speed.
But this structure still needs to utilize the member that is made of metal separately to be attached on the compound wheel rim, and still will bear different growths and fatigue behaviour, also will bear the risk of potential joint fails.Certainly produce metal construction separately because they must be assembled together, also more expensive.
U. S. Patent 4,266,442 and 4,102,221 once disclosed a kind of flywheel, and it comprises a plate-like core and a thicker compound wheel rim that cross-level is compound.In this case, center core or hub portion are to contain a layer intersection composite bed of making by a plurality of fibers to produce.The manufacturing of coming of wheel hub and fibre-reinforced wheel rim branch, and wheel rim is to be made of numerous fibers that circumferentially extends.Wheel hub and wheel rim separate owing to different growths causes with wheel rim so as to the wheel hub that prevents flywheel under high speed with press fit (interference fit) matched together.
As former flywheel, because what produce is member separately, though two members are all made by composite material, but produce compound flywheel, also to add expense and complexity, though and keep together with press fit, two different growths of member still can cause separation, and therefore not producing becomes whole flywheel rim and wheel hub.
An object of the present invention is to provide a kind of flywheel, and it has together to produce in single mold pressing step becomes whole, fibre-reinforced compound wheel rim and wheel hub.
Another object of the present invention is that a kind of independent production, fibre-reinforced wheel hub will be provided, and it can be combined into an integral body with a flywheel rim.
A further object of the invention is that a kind of fibre-reinforced compound wheel hub will be provided, and it has a spoke device, can be used to adapt to wheel rim under high speed radial growth and can unlikelyly separate.
Above-mentioned these and other some purposes of the present invention can be reached by a kind of so fibre-reinforced compound flywheel, this flywheel has a wheel hub of being made by a plurality of fibre-reinforced compound spokes that extend out from the fiber reinforced pipe that surrounds a center hole, and the termination of these spokes combines with the innermost layer of fibre-reinforced compound wheel rim.This flywheel is preferably produced as the stable preform that is used for molded integral body.
The present invention also comprises a kind of method of producing the wheel hub and the wheel rim of one-piece flywheel, this method comprises: (a) constitute the wheel hub preform with a plurality of spokes of being made by fibre reinforced composites, this lamination coating contains tackifier, and the termination of these spokes then combines with the first interior perisphere of compound wheel rim at least; (b) constitute wheel rim by a plurality of ring and/or radial fiber that kept together by tackifier, thereby the wheel hub and the wheel rim preform of an integral body are provided; (c) wheel hub and wheel rim preform are put in the model (mould); And (d) with resin injection in model, so just can be made into a flywheel with the Unitarily molded wheel hub that forms and wheel rim.
In another embodiment, spoke is a sinusoidal, has curved section, and it can prolong under high speed, so just can adapt to the radial growth of wheel rim.The perhaps spoke of available inclination, this spoke can increase by the wheel rim that bending adapts to radially.
The Unitarily molded flywheel that forms can assemble a plurality of members and can make the structure of an integral body with higher precision and lower expense in a mold pressing step.In addition, the possibility of separating on wheel rim and wheel hub interface is eliminated basically, because the binding that separates that is not formed by riveted joint, welding or Bond on the interface.
Fig. 1 is the top view according to fibre-reinforced compound flywheel preform of the present invention; Figure 1A is the explanatory drawing that the amplification that becomes whole wheel hub and wheel rim is shown.
Fig. 2 is the sectional view of the preform that cuts along the 2-2 line among Fig. 1, and this preform is positioned at model so that the injection resin.
Fig. 3 is the top view with fibre-reinforced compound flywheel preform of knitting element assemblying body (assembly).
Fig. 4 a is the perspective view that is used for constituting the knitting element of spoke; Fig. 4 b is the perspective view that is used for constituting the knitting element of pipe; Fig. 4 c is the perspective view of the wheel hub subunit assemblying body of knitting element.
Fig. 5 a is the top view with fibre-reinforced compound flywheel of sinusoidal spoke; Fig. 5 b is the top view with fibre-reinforced compound flywheel of inclination spoke.
Consult Fig. 1, the compound flywheel preform of an integral body shown in it is used for constituting the flywheel rim and the wheel hub of an integral body.
" preform " is in fiber or fibrolaminar assemblying body, and it has been formed and has been compressed to shape and size near required object.Such preform contains stabilizer or the tackifier that make fiber keep its shape usually after shaping.
Flywheel 1 has a center longitudinal axis 2 to extend through a zone 3, and axle 4 (Fig. 2) that rotary flywheel is used can be set in this zone.In the preform assemblying body, zone 3 or by axle 4 or by removable axle 4a filling, as shown in Figure 1.Zone 3 is preferably surrounded by fiber circumference or ring-type 5, and the latter forms a pipe 6, stretches out a plurality of spokes 7 from this pipe, and each spoke all is to be that wire harness coiling, braiding or woven fibrolaminar fiber 8 constitute by many strips.The fiber 8 that forms spoke has first portion 9, and this part or itself form pipe 6 or combine with pipe 6.The number of spoke can change with specific design, and 3 to 8 spokes are the most frequently used, and pipe and spoke constitute the wheel hub of flywheel.
Fig. 1 a illustrates in greater detail the mode that constitutes one-piece flywheel.Axle 4a is surrounded by the first portion 9 of four fibers 8, the stacked formation pipe 6 of these fibers.The first internal layer (not shown) of the second portion 12 stacked formation wheel rims of fiber 8 or be attached on it.
Consult Fig. 1 again, a plurality of axles 14 are set in the zone between the spoke 7, preceding the spoke fiber are remained on the appropriate location so that combine with wheel rim at the spoke fiber.So just, can at first make the wheel hub preform, then can be directly on the wheel hub preform, reel with tow or the utmost point to weaving the formation wheel rim.Certainly, wheel rim also can separately be made, and adds to then on the wheel hub preform.
Can be at the mold pressing rear spindle with mechanical means or with heat---being added in when adopting eutectic point (meltable) metal axle---or it is dissolved in water or other solvents removes.The material that constitutes this axle is known in the industry of producing removable axle.
Spoke is incorporated in the first layer at least of flywheel rim and makes the wheel rim of combination and wheel hub structure so just can produce the member that separates that must link together jointly by molding.By this integration, just can obtain the high-intensity compound flywheel of an integral body.
Consult Fig. 2, preform is put in a pair of model 15a and the formed die cavity of 15b.Hardenable plastics 16 through ports 17 are injected in the model, the fiber in plastics infiltration wheel hub, spoke and the wheel rim, and so just producing becomes whole compound flywheel.As shown in the figure, it is as a whole that axle 4 and flywheel are molded into, but the axle of an also available shape inserts and remove behind molding, and the eyelet that stays is admitted the live axle of flywheel afterwards.
Consult Fig. 3, another embodiment of the present invention shown in it.In this embodiment of the present invention, the pipe 19 of flywheel 18, spoke 20 and wheel rim 21 are assembled into preform as described above.But the preparation method of spoke is, on axle 23, produce a plurality of preformed single spoke member 24 and a tube element 25 with the fiber 22 of tow spiral or braiding, then these elements are assembled into a subunit (subelement) 26, this can see in 4c best at Fig. 4 a.Fiber wheel rim 21 among Fig. 3 is preferably on this subunit and reels, weave or weave and form.This element be woven in U. S. Patent 5,399, explanation is arranged in 395.
Consult Fig. 4 a to 4c, each single spoke member 24 includes axle 23, and fiber 22 is woven, reels or weaves around this axle.Each single spoke member is providing each part of two spoke 27a and 27b, a part 28 that combines with the tube element 25 shown in Fig. 4 b and a part 29 that combines with wheel rim 21.Though these elements can be molded into and form a wheel hub that separates together, preferably these preformed members are assembled up, and be placed in the model with a wheel rim preform, injecting resin is made whole compound flywheel so then.
Consult Fig. 5 a, another alternative scheme of the present invention shown in it.Flywheel 30 has four and becomes sinusoidal or the curved spoke 31 that radially extends.This shape is why useful to be because spoke can extend the growth that adapts to wheel rim diameter under high speed, sends the load and the distortion of wheel rim to minimizing.In this embodiment, be provided with keyway 32, so that join on the live axle later on.Certainly, the also available shrinkage of this axle (hot pressing) cooperates, adhesive is bonding or be attached on the flywheel hub by Unitarily molded, and this mode of connection is left the designer for and selected.In another alternative scheme shown in Fig. 5 b.Flywheel 33 has the spoke 34 of inclination, and this spoke is biased, so that tangentially rather than radially extending along pipe.The spoke of these inclinations can be crooked under high speed and do similarly to extend, thereby can adapt to the growth of wheel rim.
The wheel hub of fibre-reinforced compound flywheel, spoke and wheel rim can be with any obtainable lamination coating production, as graphite, carbon, polyamide, glass, boron, ceramic fiber and composition thereof.But the present invention can with rigid plastics or resin be any known thermoplasticity or thermosetting plastics, be preferably commercial have for sell as vinyl resin, epoxy resin, polyester, polyamide and bismaleimides, wherein epoxy resin and bimaleimide resin especially share.
Used stabilizer of the present invention or tackifier also are that those are known, and are for example at U. S. Patent 5,427, illustrated in 726,5,427,725,5,217,766,5,080,851,5,071,711 or 4,992,228.They are mainly the tackifier of thermosetting resin base.
Term " tackifier " or " stabilizer " are interchangeable when using in this article, are used for illustrating a kind of resin that is distributed in the fiber, and it can keep together fiber before molding with required shape.
Other suitable tackifier comprise epoxy resin, polyamide particularly bismaleimides, poly-cyanate ester resin, vinylester resin and benzocyclobutane olefine resin.
The example of the suitable tackifier of being made up of the mixture of resin and hardening agent comprises the mixture of epoxy resin, the TACTIX that makes as Dow chemical company
TMThe PR500 that 123 epoxy resin or 3M company make.Another kind of appropriate resin is 1.1P-MDA Bismaleimide (BMI) resin that is called as 5250-4 RIM BMI resin that CYTEC chemical company makes.
The resin of these demonstrations is useful, because adopt epoxy resin or BMI resin can produce many members, and these tackifier are applicable in the described system.But some other resin also can be used for specific resin system by the technician of industry approval, so the present invention is not subjected to restriction as herein described.
Adopt the present invention can produce and fibre-reinforced combined wheels fate preform upright or that become whole fibre-reinforced compound flywheel hub.In case these members are assembled, just mouldablely become one and have high strength and the overall structure of separating of wheel rim and wheel hub with high drag.The wheel hub preform can have radially, the sine-shaped or spoke that tilts, and they can extend the growth that adapts to wheel rim.
Though preferred embodiment of the present invention is illustrated and illustrates, should know under the condition of not leaving the scope of the invention, above-mentioned these embodiments can make various changes and modification.
Claims (16)
1. fibre-reinforced compound flywheel hub, it comprises a plurality of fibre-reinforced compound spokes, described spoke has the first portion around center hole, the size of this center hole can be admitted live axle within it, and described spoke also has the second portion that combines with first innermost layer of fibre-reinforced flywheel rim.
2. according to the flywheel hub of claim 1, it is characterized by, compound spoke contains and is used for spoke is remained on the stabilizer of combined shaped, and this assemblying body is for adapting to the preform of molding.
3. according to the flywheel hub of claim 1, it is characterized by and also have the axle of a position in described hole.
4. according to the flywheel hub of claim 1, it is characterized by, the fiber that constitutes spoke is selected from graphite, glass, polyamide and composition thereof.
5. according to the flywheel hub of claim 1, it is characterized by and also have the fibrae circulares that is shaped as pipe and be located between center hole and the first portion.
6. fibre-reinforced compound flywheel, it comprises: a fibre-reinforced compound flywheel hub, a plurality of spokes are arranged on it, each spoke has a first portion around center hole, and the size of described center hole can be admitted live axle within it; A fibre-reinforced compound wheel rim has the many fibrae circulares that are used for surrounding wheel hub on it, each spoke has a second portion to combine with first innermost layer of fibre-reinforced compound wheel rim.
7. according to the flywheel of claim 6, it is characterized by, compound spoke and compound wheel rim contain and are used for spoke and wheel rim are remained on the stabilizer of combined shaped, and this assemblying body is the suitable integrally-built preform that is molded as.
8. according to the flywheel of claim 6, it is characterized by, the fiber that constitutes spoke and wheel rim is selected from graphite, glass, polyamide and composition thereof.
9. according to the flywheel of claim 6, it is characterized by and also have the axle of a position in described hole.
10. according to the flywheel of claim 6, it is characterized by and also have the fiber that is shaped as pipe that is located between center hole and the first portion.
11. the method for the compound flywheel of a producd fibers enhancing, it comprises:
A wheel hub preform is provided, it has a plurality of fibre-reinforced spokes, spoke has the first portion that surrounds a center hole, and the size of this center hole can be admitted live axle within it, and spoke also has the second portion that combines with first innermost layer of fibre-reinforced flywheel rim;
Fibre-reinforced flywheel rim is placed round fibre-reinforced wheel hub and spoke;
The second portion of spoke is attached on the flywheel rim;
The flywheel hub, spoke and the wheel rim that assemble are placed in the model;
Hardenable plastics are expelled to plastics are penetrated between the fiber; With
Make plastic hardening and form whole fibre-reinforced flywheel.
12. according to the method for claim 11, it is characterized by and also comprise stabilizer is combined with fiber spoke and fibre-reinforced flywheel rim, make the preform of before being placed into builtup member in the model, producing a rigidity.
13. the method for the compound flywheel of a producd fibers enhancing, it comprises:
One single mandrel is provided, and its size limits a center hole that is used for admitting live axle;
Provide a plurality of layer of fibers, so that form the spoke of flywheel;
Fibrolaminar first portion is placed around axle;
Extend fibrolaminar intermediate portion, it is radially left from axle basically, so that form a plurality of spokes;
Fibre-reinforced wheel rim is placed around spoke;
Fibrolaminar second portion is attached on the innermost layer of wheel rim, so that form the builtup member of wheel hub and wheel rim;
Builtup member is placed in the model; And
But rigid plastics is expelled in the model, thereby produces Unitarily molded fibre-reinforced compound flywheel.
14. according to the method for claim 13, it is characterized by and also comprise stabilizer is combined with layer of fibers, make the preform of before being placed into builtup member in the model, producing a rigidity.
15. according to the method for claim 13, it is characterized by and also comprise the contiguous described intermediate portion of a plurality of spoke axles is placed, so that between spoke, form neutral gear.
16. the method according to claim 13 is characterized by, said layer of fibers is a plurality of fiber weaving layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97198635 CN1242826A (en) | 1996-08-27 | 1997-08-22 | Integral composite flywheel rim and hub |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/697,539 | 1996-08-27 | ||
| CN 97198635 CN1242826A (en) | 1996-08-27 | 1997-08-22 | Integral composite flywheel rim and hub |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1242826A true CN1242826A (en) | 2000-01-26 |
Family
ID=5179797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97198635 Pending CN1242826A (en) | 1996-08-27 | 1997-08-22 | Integral composite flywheel rim and hub |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1242826A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102624141A (en) * | 2011-01-28 | 2012-08-01 | 深圳飞能能源有限公司 | High-speed flywheel battery rotor |
| CN104039535A (en) * | 2011-12-07 | 2014-09-10 | 蒂森克虏伯碳素零件有限公司 | Wheel comprising a wheel spider, and suitable production method |
| CN105121175A (en) * | 2013-04-11 | 2015-12-02 | 碳革命有限公司 | Face to rim connection for a composite wheel |
| CN105383107A (en) * | 2015-11-17 | 2016-03-09 | 林中尉 | Carbon fiber hub and carbon fiber distribution method thereof |
| CN105387129A (en) * | 2014-08-29 | 2016-03-09 | 株式会社捷太格特 | Flywheel |
| TWI653161B (en) | 2017-12-12 | 2019-03-11 | 林書偉 | Vehicle wheel rim and method of manufacturing the same |
-
1997
- 1997-08-22 CN CN 97198635 patent/CN1242826A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102624141A (en) * | 2011-01-28 | 2012-08-01 | 深圳飞能能源有限公司 | High-speed flywheel battery rotor |
| CN102624141B (en) * | 2011-01-28 | 2014-03-19 | 深圳飞能能源有限公司 | High-speed flywheel battery rotor |
| CN104039535A (en) * | 2011-12-07 | 2014-09-10 | 蒂森克虏伯碳素零件有限公司 | Wheel comprising a wheel spider, and suitable production method |
| US9555664B2 (en) | 2011-12-07 | 2017-01-31 | ThyssenKrupp Carbon Components GmbH | Wheel spider |
| CN104039535B (en) * | 2011-12-07 | 2017-10-24 | 蒂森克虏伯碳素零件有限公司 | Wheel and appropriate production method including wheel spoke disk |
| CN105121175A (en) * | 2013-04-11 | 2015-12-02 | 碳革命有限公司 | Face to rim connection for a composite wheel |
| CN105121175B (en) * | 2013-04-11 | 2017-07-28 | 碳革命有限公司 | End face and wheel rim connecting portion for combined wheels |
| CN105387129A (en) * | 2014-08-29 | 2016-03-09 | 株式会社捷太格特 | Flywheel |
| CN105383107A (en) * | 2015-11-17 | 2016-03-09 | 林中尉 | Carbon fiber hub and carbon fiber distribution method thereof |
| WO2017084564A1 (en) * | 2015-11-17 | 2017-05-26 | 林中尉 | Carbon fiber hub and carbon fiber distribution method therefor |
| TWI653161B (en) | 2017-12-12 | 2019-03-11 | 林書偉 | Vehicle wheel rim and method of manufacturing the same |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |