CN207835269U - One kind dividing valve circular ring shell alloy wheel hub combined accumulation energy flywheel - Google Patents

One kind dividing valve circular ring shell alloy wheel hub combined accumulation energy flywheel Download PDF

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Publication number
CN207835269U
CN207835269U CN201820306806.7U CN201820306806U CN207835269U CN 207835269 U CN207835269 U CN 207835269U CN 201820306806 U CN201820306806 U CN 201820306806U CN 207835269 U CN207835269 U CN 207835269U
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China
Prior art keywords
circular ring
wheel hub
ring shell
shell
wheel
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CN201820306806.7U
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戴兴建
钟国彬
王超
徐旸
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Tsinghua University
Electric Power Research Institute of Guangdong Power Grid Co Ltd
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Tsinghua University
Electric Power Research Institute of Guangdong Power Grid Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/16Mechanical energy storage, e.g. flywheels or pressurised fluids

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Abstract

One kind provided by the utility model divides valve circular ring shell alloy wheel hub combined accumulation energy flywheel, including:Mandrel, wheel hub and wheel rim;Mandrel, wheel hub and wheel rim are coaxially disposed from inside to outside;Wheel hub includes split-type circular ring shell, Circular Plate and cylindrical shell;Circular Plate is fixedly connected by the centrally disposed hole corresponding with cylindrical shell of Circular Plate with cylindrical shell;Circular Plate is divided the edge corresponding with split-type circular ring shell to be formed by Circular Plate periphery and is fixedly connected with split-type circular ring shell;Split-type circular ring shell is specially that hollow cylinder divides the imperfect annulus shell to be formed.The utility model passes through the split-type circular ring shell of wheel hub and the collocation of Circular Plate, so that in combined accumulation energy flywheel high speed rotation, split-type circular ring shell is due to being divided into imperfect shell, it can thus be flared out automatically, it is close to the inside of wheel rim, wheel hub and wheel rim when rotating at high speed can close coordination without falling apart, realize that the large deformation of wheel hub and wheel rim is coordinated, ensure the Strength Safety under large deformation is coordinated.

Description

One kind dividing valve circular ring shell alloy wheel hub combined accumulation energy flywheel
Technical field
The utility model is related to Generator test technical fields more particularly to one kind dividing the combination storage of valve circular ring shell alloy wheel hub It can flywheel.
Background technology
Flywheel energy storage is that a kind of power density is high, response is rapid, long lifespan, environmental characteristics close friend advanced physics energy storage skill Art.To improve energy storage density and power density, flywheel is normally operated in very high rotating speed (more than 10000rpm), in flywheel structure Portion is more than the intensity of material to prevent stress there are powerful stress caused by high speed centrifugation load, it is necessary to using high intensity, low close The advanced material of degree, for example fibre reinforced composites are wound, because winding the anisotropy of fibrous composite, need to consider ring To the stress state and working strength with radial both direction.
The radial stress of fibre reinforced composites flywheel will increase with the increase of flywheel thickness, and wind fiber tree The radial strength of aliphatic radical bluk recombination circular ring structure generally only 20~30MPa, radial strength become limitation flywheel limit speed Key factor.To prevent radial strength insufficient and delamination, technologies are wound etc. using multiple thin annulus interferences, prestressing force, are increased Strong rotor periphery composite material in radial tensile strength, gives full play to the high advantage of fibrous material circumferential direction specific strength.
Fiber flywheel wound is generally difficult to make the very thick structure of radial thickness, needs the wheel using high strength alloy material Hub connects flywheel and mandrel, and the difficult point of wheel hub design is the Strength Safety realized under large deformation coordination.
Therefore, how to realize that the Strength Safety under large deformation is coordinated is that those skilled in the art need the technology solved to ask Topic.
Utility model content
The utility model provides one kind and dividing valve circular ring shell alloy wheel hub combined accumulation energy flywheel, for solving traditional energy storage The technical issues of Strength Safety of the flywheel under large deformation coordination cannot be guaranteed.
One kind provided by the utility model divides valve circular ring shell alloy wheel hub combined accumulation energy flywheel, including:Mandrel, wheel hub and wheel Edge;
The mandrel, the wheel hub and the wheel rim are coaxially disposed from inside to outside;
The wheel hub includes split-type circular ring shell, Circular Plate and cylindrical shell;
The mandrel periphery is fixedly connected with the cylindrical shell;
The Circular Plate is solid by the centrally disposed hole corresponding with the cylindrical shell of the Circular Plate and the cylindrical shell Fixed connection;
The Circular Plate divided by the Circular Plate periphery edge corresponding with the split-type circular ring shell to be formed with The split-type circular ring shell is fixedly connected;
The split-type circular ring shell is specially that hollow cylinder divides the imperfect annulus shell to be formed.
Preferably, the split-type circular ring shell specifically includes several circular ring shells and divides valve;
The circular ring shell divides valve to be uniformly distributed on the split-type circular ring shell circumference and fixes and the Circular Plate edge.
Preferably, it is interference fitted between the wheel hub and the wheel rim.
Preferably, the wheel rim includes the first wheel rim and second rim;
First wheel rim is specially fiber epoxy composite material cylinder Wrapping formed on the wheel hub;
The second rim is specially fiber epoxy composite material cylinder Wrapping formed on first wheel rim;
The modulus of second rim described in the modular ratio of first wheel rim is small.
Preferably, first wheel rim is specially glass fibre epoxy composite material cylinder.
Preferably, the second rim is specially high-strength carbon fiber epoxy composite material cylinder.
Preferably, it is provided with threaded hole on the wheel hub;
Screw thread via corresponding to the threaded hole is provided on the flange flange of the mandrel;
The mandrel and the wheel hub are used for especially by being connected with the bolt of the screw thread via across the threaded hole Transmit torque.
Preferably, the cylindrical shell of the wheel hub and the mandrel outer wall transition coordinate, for the wheel hub with it is described The coaxial positioning of mandrel.
Preferably, which is flat-disk structure, the height and diameter ratio of the combined accumulation energy flywheel Less than half.
Preferably, which is 900-600mm.
As can be seen from the above technical solutions, the utility model embodiment has the following advantages:
One kind provided by the utility model divides valve circular ring shell alloy wheel hub combined accumulation energy flywheel, including:Mandrel, wheel hub and wheel Edge;The mandrel, the wheel hub and the wheel rim are coaxially disposed from inside to outside;The wheel hub includes split-type circular ring shell, annulus Plate and cylindrical shell;The mandrel periphery is fixedly connected with the cylindrical shell;The Circular Plate is centrally disposed by the Circular Plate Hole corresponding with the cylindrical shell be fixedly connected with the cylindrical shell;The Circular Plate divides shape by the Circular Plate periphery At edge corresponding with the split-type circular ring shell be fixedly connected with the split-type circular ring shell;The split-type circular ring shell tool Body is that hollow cylinder divides the imperfect annulus shell to be formed.Pass through the split-type circular ring shell and circle of wheel hub in the utility model The collocation of ring flat-plate so that in combined accumulation energy flywheel high speed rotation, split-type circular ring shell due to being divided into imperfect shell, because And can be flared out automatically, be close to the inside of wheel rim, wheel hub and wheel rim when rotating at high speed can close coordination without dissipating Frame, the large deformation for realizing wheel hub and wheel rim are coordinated, and ensure that the Strength Safety under large deformation is coordinated.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property It puts, can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is one embodiment of a kind of point of valve circular ring shell alloy wheel hub combined accumulation energy flywheel provided by the utility model Schematic diagram;
Fig. 2 is in one embodiment of a kind of point of valve circular ring shell alloy wheel hub combined accumulation energy flywheel provided by the utility model The schematic diagram of wheel hub;
Fig. 3 is one embodiment of a kind of point of valve circular ring shell alloy wheel hub combined accumulation energy flywheel provided by the utility model Vertical view;
Fig. 4 is one embodiment of a kind of point of valve circular ring shell alloy wheel hub combined accumulation energy flywheel provided by the utility model Upward view;
Fig. 5 is in one embodiment of a kind of point of valve circular ring shell alloy wheel hub combined accumulation energy flywheel provided by the utility model The connection diagram (i.e. A-A sectional views) of mandrel and wheel hub;
Wherein, reference numeral is:
1, mandrel;11, screw thread via;2, wheel hub;21, split-type circular ring shell;211, the first circular ring shell divides valve;212, second Circular ring shell divides valve;213, third circular ring shell divides valve;214, the 4th circular ring shell divides valve;22, Circular Plate;23, cylindrical shell;231, screw thread Hole;3, the first wheel rim;4, second rim;5, bolt.
Specific implementation mode
The utility model embodiment provides one kind and dividing valve circular ring shell alloy wheel hub combined accumulation energy flywheel, for solving tradition Accumulated energy flywheel large deformation coordination under Strength Safety cannot be guaranteed the technical issues of.
It, below will knot to enable the purpose of utility model, feature, advantage of the utility model more apparent and understandable The attached drawing in the utility model embodiment is closed, the technical scheme in the utility model embodiment is clearly and completely described, Obviously, the embodiments described below are only the utility model a part of the embodiment, and not all embodiment.Based on this reality It is obtained by those of ordinary skill in the art without making creative efforts all other with the embodiment in novel Embodiment shall fall within the protection scope of the present invention.
It please refers to Fig.1 and Fig. 2, one kind provided by the utility model divides 21 alloy wheel hub of valve circular ring shell 2 combined accumulation energy flywheel One embodiment, including:Mandrel 1, wheel hub 2 and wheel rim (wheel rim includes the first wheel rim 3 and second rim 4);
Mandrel 1, wheel hub 2 and wheel rim are coaxially disposed from inside to outside;
Wheel hub 2 includes split-type circular ring shell 21, Circular Plate 22 and cylindrical shell 23;
1 periphery of mandrel is fixedly connected with cylindrical shell 23;
Circular Plate 22 is fixedly connected by the centrally disposed hole corresponding with cylindrical shell 23 of Circular Plate 22 with cylindrical shell 23;
The edge corresponding with split-type circular ring shell 21 and split-type that Circular Plate 22 is formed by 22 periphery segmentation of Circular Plate Circular ring shell 21 is fixedly connected;
Split-type circular ring shell 21 is specially that hollow cylinder divides the imperfect annulus shell to be formed.
Wherein, door shape, i.e., three knots are presented in split-type circular ring shell 21, Circular Plate 22 and cylindrical shell 23 in fig. 1 and 2 Component forms hollow groove, so that flywheel is more flexible when rotating at high speed, and split-type circular ring shell 21 divides valve Formula structure (is divided into multiple valves) so that split-type circular ring shell 21 will not receive the drawing of self structure when being flared out It pulls, if without this splitted structure, outer ring can be tightly combined by common circular ring shell due to the circular configuration of annulus itself One entirety is difficult then to be flared out automatically.Therefore, the split-type structure of the utility model solves this physical limit, wound When realizing to the property made flywheel high speed rotation, split-type circular ring shell 21 can be flared out automatically, to (be specifically the with wheel rim One wheel rim 3) closely combine, it ensure that the Strength Safety under large deformation is coordinated.
Pass through the collocation of the split-type circular ring shell 21 and Circular Plate 22 of wheel hub 2 in the utility model so that in combined accumulation energy When flywheel high speed rotation, split-type circular ring shell 21 is due to being divided into imperfect shell, it is thus possible to be flared out, be close to automatically The inside of wheel rim, wheel hub 2 and wheel rim when rotating at high speed can close coordination without falling apart, realize wheel hub 2 and wheel rim Large deformation is coordinated, and ensure that the Strength Safety under large deformation is coordinated.
Further, split-type circular ring shell 21 specifically includes several circular ring shells and divides valve;
Circular ring shell divides valve to be uniformly distributed on 21 circumference of split-type circular ring shell and fixes and 22 edge of Circular Plate.
In the present embodiment, in Fig. 3 and Fig. 4, circular ring shell divides valve to be specially 4, be respectively the first circular ring shell divide valve 211, Second circular ring shell divides valve 212, third circular ring shell that valve 213 and the 4th circular ring shell is divided to divide valve 214.When flywheel entirety high speed rotation, circle Toroidal shell divides valve 211,212,213,214 to be flared out automatically under the action of the centrifugal force, is close to the inside of wheel rim 3, realize wheel hub 2 with The large deformation of wheel rim is coordinated.
Fig. 3 and Fig. 4 are please referred to, composite structure alloy wheel hub 22 is by high specific strength metal (extra super duralumin alloy, super high-strength alloy Steel, titanium alloy etc.) material is made, and it is open circles ring flat-plate 22 that outside, which uses split-type circular ring shell 21, middle section, and inside is thick Cylindrical shell 23.Split-type circular ring shell 21 divides valve to form by 4 valve circular ring shells:211、212、213、214.Circular ring shell divides valve complete by one Circular ring shell circumferentially even partition obtain (valve number is divided to be usually 3-9).22 outside of open circles ring flat-plate has semicircle at 4 to lack Mouthful, it is corresponded with 21 split position of valve circular ring shell is divided.The bottom end of the thick cylindrical shell 23 of inside is equipped with threaded hole 231 at 4.
Further, it is interference fitted between wheel hub 2 and wheel rim.
Interference fit is so that wheel hub 2 is generated along radially inward deformation and compressive pre-stress, the deformation and stress and centrifugation Deformation and stress direction caused by power are deformed inward and just gradually disappear with compression, be equivalent on the contrary, under Centrifugal Load Part centrifugal load is offset, it is hereby achieved that higher working speed.Interference fit also generates radial pressure in wheel rim 3 and answers Power offsets radial drawing stress caused by part centrifugal load, to obtain higher wheel rim working speed.
Further, wheel rim includes the first wheel rim 3 and second rim 4;
Wrapping formed fiber epoxy composite material cylinder on first wheel rim 3 specially wheel hub 2;
Wrapping formed fiber epoxy composite material cylinder on specially the first wheel rim 3 of second rim 4;
The modulus of the modular ratio second rim 4 of first wheel rim 3 is small.
When high speed rotation, the modulus of the first wheel rim 3 is small, and radial deformation is big, and the modulus of second rim 4 is big, and radial deformation is small, 4 automatic impaction of first wheel rim 3 and second rim, will not get loose.
Further, the first wheel rim 3 is specially glass fibre epoxy composite material cylinder.
Further, second rim 4 is specially high-strength carbon fiber epoxy composite material cylinder.
Referring to Fig. 1, two layers of composite material hollow cylinder of the wheel cause of combined accumulation energy flywheel (is 3 He of the first wheel rim respectively Second rim 4, single layer radial thickness are 50-100mm) composition, ecto-entad is high-strength carbon fiber epoxy composite material respectively Cylinder (second rim 4), glass fibre epoxy composite material cylinder (the first wheel rim 3).Matrices of composite material is epoxy resin, by Carbon fiber and glass fiber wet winding process make, and boring molding uses inner circle core model, first Wrapping formed first wheel rim 3, reshaping winds second rim 4 after solidification.In the process engineering of Wrapping formed first wheel rim 3 or second rim 4, it is divided into 5-10 Winding-the solidification respectively of a thin layer:A thin layer has been wound, has cured a thin layer and has wound again.In first wheel rim 3 and second rim 4 The middle section in portion will produce radial drawing stress under high-speed condition, and design controls its thickness, makes it in high speed operation item Stress under part is no more than 70% (being usually 15MPa) of fracture strength.Layered windings-solidification again inside wheel rim can be obtained It is uniformly distributed the more preferable composite material of performance, cures the tendency of cracking after preventing entirety from winding.
Further, referring to Fig. 5, being provided with threaded hole 231 on wheel hub 2;
Screw thread via corresponding with threaded hole 231 11 is provided on the flange flange of mandrel 1;
Mandrel 1 is fixedly connected especially by across threaded hole 231 with the bolt 5 of screw thread via 11 with wheel hub 2, for transmitting Torque.
Further, the cylindrical shell 23 of wheel hub 2 coordinates with 1 outer wall transition of mandrel, determines for wheel hub 2 and the coaxial of mandrel 1 Position.
Referring to Fig. 5, the flange flange section of mandrel 1 is provided with screw thread via 11 at 4.4 are used between mandrel 1 and wheel hub 2 A bolt 5 is fastenedly connected, and transmits torque.Mandrel 1 and the radial cooperation cylindrical surface with diameter of the inside cylindrical shell 23 of wheel hub 2 are adopted Coordinated with transition, realizes coaxial installation with high accuracy, but do not transmit torque.Wheel hub 2 and 1 concentric locating of mandrel and transmission torque work( Can separate, prevent because high speed rotation positioning micro-strain it is uncoordinated due to loosen cause transmit torque failure.
Further, which is flat-disk structure, and the height and diameter ratio of combined accumulation energy flywheel are small In half.
Further, which is 900-600mm.
The above, above example are only to illustrate the technical solution of the utility model, rather than its limitations;Although ginseng The utility model is described in detail according to previous embodiment, it will be understood by those of ordinary skill in the art that:It is still Can be with technical scheme described in the above embodiments is modified, or which part technical characteristic is equally replaced It changes;And these modifications or replacements, various embodiments of the utility model technical solution that it does not separate the essence of the corresponding technical solution Spirit and scope.

Claims (10)

1. one kind dividing valve circular ring shell alloy wheel hub combined accumulation energy flywheel, which is characterized in that including:Mandrel, wheel hub and wheel rim;
The mandrel, the wheel hub and the wheel rim are coaxially disposed from inside to outside;
The wheel hub includes split-type circular ring shell, Circular Plate and cylindrical shell;
The mandrel periphery is fixedly connected with the cylindrical shell;
The Circular Plate is fixed by the centrally disposed hole corresponding with the cylindrical shell of the Circular Plate and the cylindrical shell to be connected It connects;
The Circular Plate divided by the Circular Plate periphery edge corresponding with the split-type circular ring shell to be formed with it is described Split-type circular ring shell is fixedly connected;
The split-type circular ring shell is specially that hollow cylinder divides the imperfect annulus shell to be formed.
2. one kind according to claim 1 divides valve circular ring shell alloy wheel hub combined accumulation energy flywheel, which is characterized in that described point Flap-type circular ring shell specifically includes several circular ring shells and divides valve;
The circular ring shell divides valve to be uniformly distributed on the split-type circular ring shell circumference and fixes and the Circular Plate edge.
3. one kind according to claim 1 divides valve circular ring shell alloy wheel hub combined accumulation energy flywheel, which is characterized in that the wheel It is interference fitted between hub and the wheel rim.
4. one kind according to claim 1 divides valve circular ring shell alloy wheel hub combined accumulation energy flywheel, which is characterized in that the wheel Edge includes the first wheel rim and second rim;
First wheel rim is specially fiber epoxy composite material cylinder Wrapping formed on the wheel hub;
The second rim is specially fiber epoxy composite material cylinder Wrapping formed on first wheel rim;
The modulus of second rim described in the modular ratio of first wheel rim is small.
5. one kind according to claim 4 divides valve circular ring shell alloy wheel hub combined accumulation energy flywheel, which is characterized in that described One wheel rim is specially glass fibre epoxy composite material cylinder.
6. one kind according to claim 4 divides valve circular ring shell alloy wheel hub combined accumulation energy flywheel, which is characterized in that described Two wheel rims are specially high-strength carbon fiber epoxy composite material cylinder.
7. one kind according to claim 1 divides valve circular ring shell alloy wheel hub combined accumulation energy flywheel, which is characterized in that the wheel Threaded hole is provided on hub;
Screw thread via corresponding to the threaded hole is provided on the flange flange of the mandrel;
The mandrel is connected with the bolt of the screw thread via for transmitting with the wheel hub especially by across the threaded hole Torque.
8. one kind according to claim 7 divides valve circular ring shell alloy wheel hub combined accumulation energy flywheel, which is characterized in that the wheel The cylindrical shell of hub coordinates with the mandrel outer wall transition, is used for the coaxial positioning of the wheel hub and the mandrel.
9. one kind according to claim 1 divides valve circular ring shell alloy wheel hub combined accumulation energy flywheel, which is characterized in that the combination Accumulated energy flywheel is flat-disk structure, and height and the diameter ratio of the combined accumulation energy flywheel are less than half.
10. one kind according to claim 1 divides valve circular ring shell alloy wheel hub combined accumulation energy flywheel, which is characterized in that the group Conjunction accumulated energy flywheel excircle dimension is 900-600mm.
CN201820306806.7U 2018-03-06 2018-03-06 One kind dividing valve circular ring shell alloy wheel hub combined accumulation energy flywheel Active CN207835269U (en)

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CN201820306806.7U CN207835269U (en) 2018-03-06 2018-03-06 One kind dividing valve circular ring shell alloy wheel hub combined accumulation energy flywheel

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108321977A (en) * 2018-03-06 2018-07-24 广东电网有限责任公司电力科学研究院 One kind dividing valve circular ring shell alloy wheel hub combined accumulation energy flywheel
CN114257034A (en) * 2022-02-28 2022-03-29 华驰动能(北京)科技有限公司 Energy storage flywheel

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108321977A (en) * 2018-03-06 2018-07-24 广东电网有限责任公司电力科学研究院 One kind dividing valve circular ring shell alloy wheel hub combined accumulation energy flywheel
CN114257034A (en) * 2022-02-28 2022-03-29 华驰动能(北京)科技有限公司 Energy storage flywheel
CN114257034B (en) * 2022-02-28 2022-06-03 华驰动能(北京)科技有限公司 Energy storage flywheel

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