WO2012043939A1 - Procédé de préparation de moyeu de volant - Google Patents

Procédé de préparation de moyeu de volant Download PDF

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Publication number
WO2012043939A1
WO2012043939A1 PCT/KR2011/000157 KR2011000157W WO2012043939A1 WO 2012043939 A1 WO2012043939 A1 WO 2012043939A1 KR 2011000157 W KR2011000157 W KR 2011000157W WO 2012043939 A1 WO2012043939 A1 WO 2012043939A1
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WIPO (PCT)
Prior art keywords
dome
winding
composite material
hub
subdome
Prior art date
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Ceased
Application number
PCT/KR2011/000157
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English (en)
Korean (ko)
Inventor
하성규
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Industry University Cooperation Foundation IUCF HYU
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Industry University Cooperation Foundation IUCF HYU
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Publication date
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Publication of WO2012043939A1 publication Critical patent/WO2012043939A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/30—Flywheels
    • F16F15/305—Flywheels made of plastics, e.g. fibre reinforced plastics [FRP], i.e. characterised by their special construction from such materials
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
    • H02K1/30—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures using intermediate parts, e.g. spiders
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H02K15/03—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
    • 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

Definitions

  • the present invention relates to a method for manufacturing a flywheel hub, and more specifically, to increase the energy storage capacity of the flywheel to manufacture a flywheel by winding the composite material in multiple layers to increase the strength and rigidity of the hub connecting the rotor and the rotation axis of the flywheel It relates to a method for producing a dragon hub.
  • Flywheel energy storage system of the system for implementing such a technology is a device that uses the surplus power to rotate the motor and then stores the inertial energy of the attached rotor, and if necessary converts to electrical energy again.
  • flywheel energy storage system advantages include better energy storage efficiency, instant charging and discharging, longer energy life, and no degradation at low temperatures compared to conventional mechanical and chemical energy storage devices.
  • the flywheel energy storage system includes a flywheel rotor for storing inertial energy generated during rotation, a motor for driving the flywheel rotor, a generator for generating power, a controller for controlling input and output of power, and a magnetic bearing part and a housing as peripheral accessories. It is part.
  • the flywheel is composed of a rotor and a rotating shaft and a hub for fixing them.
  • the hub is easily inflated when the flywheel rotates to connect the rotating shaft and the rotor, and must be well deformed to transfer the torque of the rotating shaft to the rotor.
  • the rigidity must be high to increase the resonant frequency of the rotary system, ie the flywheel, above the operating speed.
  • the rotational kinetic energy that can be stored in this flywheel energy storage system is expressed as follows.
  • the energy stored in the flywheel is linearly proportional to the square of the rotational speed, linear to the pole moment of inertia I of the flywheel.
  • the radially low tensile stress in the internal stresses can cause fatal damage to the composites, so the combination of multiple layers of composite materials can be combined to extend the inner composite ring towards the outer composite ring. To reduce the stress generated.
  • the hub connecting the rotor and the rotary shaft should also be well expanded in the radial direction, and therefore, the design of the hub with easy expansion in the radial direction should be presented. That is, when the flywheel rotates at a high speed, the hub tends to be separated from the rotor. Therefore, the bonding problem between the hub and the rotor must be considered.
  • considerations in the design of the rotor and hub of the flywheel are the setting of the resonance speed to lower the internal stress generated during high speed rotation and to avoid the operating speed.
  • FIG. 1 is a cutaway perspective view of a flywheel using a conventional split dome type hub
  • FIG. 2 is a cutaway perspective view of the hub of FIG. 1 (see Publication No. 10-2006-0066765). .
  • a plurality of slits 22 are formed in the axial direction of the rotation shaft 30 in the hub 50, which is in contact with the inner circumferential surface of the rotor 10, so that the flywheel is at high speed.
  • the divided portion, that is, the slit 22 is unfolded in the radial direction by the centrifugal force so that the hub 50 exerts a compressive force on the inner surface of the rotor 10, thereby causing the radius of the rotor 10 to be generated at high speed rotation. It is possible to reduce the directional tensile stress and to prevent the separation between the rotor 10 and the hub 50.
  • the hub 50 has two or more portions fixed to the rotation shaft 30 to increase the resonance frequency than the operating speed of the flywheel so as to avoid resonance.
  • such a conventional split dome type hub has a stress concentration at the tip of the blade, i.e., at both ends of the slit 22, as the split blade, i.e., the portion divided by the slit 22, moves radially by the centrifugal force during the high speed rotation.
  • the split blade i.e., the portion divided by the slit 22 moves radially by the centrifugal force during the high speed rotation.
  • the flywheel in order to increase the stored energy, the flywheel must be rotated at a high speed, and the composite material is suitable for high speed rotation because the tensile stress can be lowered and the strength can be increased.
  • the rotor is made of several layers formed by winding a composite material.
  • a rotor made of a multi-layered composite material has a disadvantage of high strength in the circumferential direction but weak strength in the radial direction. That is, there is a disadvantage in that the wound composite material is torn in the radial direction at high speed. This may cause the hub to move between the rotor and the hub to be separated or detached from the rotor.
  • the hub should also extend well in the radial direction. This will prevent the rotor and hub from separating.
  • the hub should not only expand well in the radial direction, but also have a strength that does not break during high-speed rotation, and should have a structure or shape that can increase the resonant frequency of the flywheel.
  • the present invention forms a dome-shaped hub by winding a multi-layered composite material, which is lighter and has higher strength than metal, and expands well according to high-speed rotation, thereby preventing the hub from being damaged by stress concentration during high-speed rotation of the flywheel. And it provides a manufacturing method of the hub for a flywheel easy to manufacture.
  • the present invention provides a method for manufacturing a flywheel hub made of a shape and a material capable of maintaining a close contact between the rotor and the hub and adjusting the rigidity by following the deformation of the rotor during high speed rotation of the flywheel.
  • the hollow pressure vessel by winding a composite material
  • a winding step of forming a shape A curing step of curing the wound composite material;
  • the method may include forming a hollow main dome and winding a composite material on an outer surface of the main dome at an angle different from that of the composite material forming the main dome to form a subdome.
  • the forming of the sub dome may include winding a first sub dome on an outer surface of the main dome and a second sub dome on an outer surface of the first sub dome, and the main dome, the first sub dome and the second sub dome.
  • the subdome can wind the composite material at different angles.
  • the first subdome winds the composite material at an angle smaller than the winding angle of the main dome, and the second subdome is formed at an angle smaller than the winding angle of the first subdome. Can be wound.
  • the main dome may wind the composite material to have a thickness smaller than the thickness of the first subdome, and may wind the composite material to have a thickness greater than the thickness of the second subdome. have.
  • the first subdome may start winding the composite material at a position different from the starting position of the composite winding of the second subdome with respect to the outer surface of the main dome.
  • the first subdome may start winding the composite material closer to the insertion hole than the starting position of the composite winding of the second subdome.
  • the composite winding starting position of the first subdome may be located on an outer surface of the conical part of the main dome.
  • the main dome may wind the composite material such that the thickness of the insertion hole side is greater than the thickness of the opening side.
  • the forming of the sub-dome may control the radial stiffness of the hub by varying the starting position of the composite winding of the first sub dome and the second sub dome with respect to the outer surface of the main dome.
  • the forming of the subdome may include winding the composite material such that the winding length of the composite material in the longitudinal direction of the rotating shaft increases in the order of the main dome, the first subdome and the second subdome.
  • the manufacturing method of the flywheel hub according to the present invention by manufacturing a dome-shaped hub by winding the composite material in a multi-layer, it is easy to manufacture, the expansion is achieved by rotation, light and high strength compared to metal When the flywheel rotates at a high speed, the hub may be prevented from being damaged by the concentration of stress.
  • the method for manufacturing a flywheel hub according to the present invention does not stretch well in the vicinity of the rotating shaft, but extends well in the vicinity of the rotor.
  • the resonance frequency is high, so that the resonance phenomenon may not be caused.
  • the manufacturing method of the hub for flywheel according to the present invention can adjust the rigidity of the hub in response to the rotational speed of the flywheel due to the hub formed by winding the composite material in multiple layers and utilize the inner or lower space of the hub Can be.
  • the method for manufacturing a flywheel hub according to the present invention is integrally wound and then cut to obtain a plurality of hubs, it is possible to maintain quality equality or uniformity among the plurality of hubs.
  • FIG. 1 is a cutaway perspective view of a flywheel using a conventional split dome type hub.
  • FIG. 2 is a cutaway perspective view of the hub of FIG. 1.
  • FIG. 2 is a cutaway perspective view of the hub of FIG. 1.
  • Figure 3 is a view showing the manufacturing process of the flywheel hub according to an embodiment of the present invention.
  • Figure 4 is a flow chart showing a process for manufacturing a flywheel hub according to an embodiment of the present invention.
  • FIG. 5 is a view showing a winding process of the flywheel hub according to an embodiment of the present invention.
  • FIG. 6 is a longitudinal partial cross-sectional view of the flywheel hub shown in FIG.
  • Figure 7 is a perspective view of the various forms of the flywheel hub made by the manufacturing method according to an embodiment of the present invention.
  • FIG. 8 is a cutaway perspective view of a flywheel equipped with a hub for a flywheel made by a manufacturing method according to an embodiment of the present invention.
  • Figure 3 is a view showing the manufacturing process of the flywheel hub according to an embodiment of the present invention
  • Figure 4 is a flow chart showing a process for manufacturing a flywheel hub according to an embodiment of the present invention.
  • Flywheel hub 300 by connecting the rotor and the rotation axis of the flywheel, is manufactured by the filament winding method (Filament Winding Method).
  • the flywheel hub 300 comprises the steps of winding the composite material (1100 ⁇ 1300), curing the wound composite material (1400) and It can be obtained by a manufacturing method including the step 1500 of cutting the cured shape.
  • Winding the composite material (1100 ⁇ 1300), as shown in Figure 3 (a) is a step of winding the composite material 301 by the filament winding method to form a hollow pressure vessel shape.
  • the composite material 301 is a material obtained by applying a thermosetting resin such as epoxy to a reinforcing fiber material such as carbon fiber, glass fiber or mixed fiber of carbon fiber and glass fiber.
  • the composite material 301 may use various kinds of fibers in addition to carbon fibers and glass fibers, and may mix and use different kinds of fibers as necessary.
  • the filament winding method is a method of winding the reinforcing fiber material in a mandrel continuously at a predetermined winding angle while impregnating the resin in the reinforcing fiber material by performing the substitution of air contained in the surface of the reinforcing fiber material and the thermosetting resin.
  • the filament winding method is divided into a dipping method and a drum method according to the impregnation method of the resin.
  • the dipping method is a method of impregnating the resin in the reinforcing fiber material in the impregnation tank filled with the resin liquid
  • the drum method is a method of impregnating the resin in the reinforcing fiber material on the rotating drum.
  • the filament winding method is divided into a hoop method and a helical method according to a winding method.
  • the hoop method is a method in which the filament, that is, the composite material 301 is wound substantially perpendicular to the mandrel
  • the helical method is a method in which the composite material 301 is wound while forming a large angle with the rotation axis 100 of the mandrel.
  • the composite material 301 is wound in a helical manner so that both ends can be formed in a dome shape.
  • the composite material 301 may be wound in a hoop manner.
  • This filament winding method has the advantages of low cost, low labor cost, and uniformity of production process using computer control or robot, compared to other composite materials processing methods. have.
  • This filament winding method is mainly used to fabricate composite pressure vessels.
  • FIG. 3 (b) The completion of the winding steps 1100-1300 is illustrated in FIG. 3 (b).
  • the thickness of the composite material 301 may be differently wound for each section as needed.
  • the winding angle of the composite material 301 is determined.
  • the rigidity, strength, strain, etc. of the hub 300 to be manufactured are determined. This can be determined. This can be determined through finite element analysis or structural analysis.
  • the curing step 1400 is a step of curing the composite material 301 wound on the mandrel.
  • the cutting step 1500 is a step of cutting both ends of the composite material 301 wound in the shape of a pressure vessel as shown in FIG. 3 (b) into a dome shape as shown in FIG. 3 (c).
  • the hub 300 according to an embodiment of the present invention is the two dome-shaped hubs obtained by symmetrically cutting the parts of the pressure vessel shape manufactured by the same filament winding method ( 300 may be used, and the two domed hubs 300 may maintain uniformity between components. Therefore, even when the dome-shaped hub 300 obtained by cutting is used for the flywheel, it is possible to prevent a phenomenon in which any one of the hubs 300 is abnormal in size or breaks first even when rotating at a high speed.
  • the hub 300 obtained by the cutting step 1500 as described above is formed in a dome shape in which the outer surface is convexly protruded in one direction, and the inner surface is concave in one direction, and the composite material 301 is formed. It is formed by winding.
  • the hub 300 By forming the hub 300 in the shape of a dome as above, it is possible to prevent the flow in the vertical direction and to increase the rigidity in the radial direction, it can be easily expanded in the radial direction.
  • the fabrication of the hub 300 is very easy, and because the composite is made of a composite material, the expansion rate is excellent and the rigidity is high, thereby increasing the resonance frequency. If necessary, the dome-shaped hub 300 may further process or polish an outer diameter and an inner diameter.
  • FIG. 5 is a view illustrating a winding process of a flywheel hub according to an embodiment of the present invention
  • FIG. 6 is a longitudinal cross-sectional view of the flywheel hub shown in FIG. 5C.
  • the winding step (1100 ⁇ 1300) of the manufacturing method of the hub 300 according to an embodiment of the present invention is inserted into the rotary shaft at one end along the longitudinal direction of the rotary shaft Forming a hollow main dome 300a to form a hole 302 and an opening 303 at the other end 1100 and winding the composite material 301 on the outer surface of the main dome 300a. And forming the sub domes 300b and 300c (1200 and 1300).
  • the flywheel hub 300 is formed with an insertion hole 302 is inserted into the rotary shaft at one end in the longitudinal direction of the rotary shaft and the opening 303 at the other end And a sub dome formed by winding the composite material 301 on the outer surface of the main dome 300a and the rotor having a hollow shape formed by winding the composite material 301. sub dome, 300b, 300c). At least one of the main dome 300a or the subdome 300b, 300c may be the hub 300 to the subdome 300b, 300c because the rotating shaft and the rotor may expand in the radial direction of the rotating shaft as the rotor rotates at a high speed. ) And the rotor can be maintained.
  • the hub 300 is preferably wound with a composite material having the same or similar components as the rotor.
  • the sub dome (300b, 300c) may include a first subdome (300b) is wound on the outer surface of the main dome (300a) and a second subdome (300c) is wound on the outer surface of the first subdome (300b) Can be. That is, the subdomes 300b and 300c may include at least two composite winding layers. 5 and 6 illustrate a hub 300 in which the subdomes 300b and 300c include two winding layers, but the present invention is not limited thereto, and the subdome may have a plurality of windings according to design requirements such as necessary rigidity. It may be made of layers.
  • the main dome 300a, the first sub dome 300b and the second sub dome 300c may have different winding angles.
  • forming the sub dome (300b, 300c) (1200, 1300) is the step of winding the first sub dome (300b) on the outer surface of the main dome (300a) (1200) and the first sub dome (300b) Winding the second sub-dome 300c on the outer surface of the step 1300, and the main dome 300a, the first sub-dome 300b and the second sub-dome 300c have different angles of the composite material. It can be formed by winding. As shown in FIG. 5, the angle ⁇ 1 of winding the composite material of the main dome 300a, the angle ⁇ 2 of winding the composite material of the first subdome 300b, and the second subdome 300c of the second dome 300c.
  • the angles ⁇ 3 for winding the composite material are different from each other.
  • the rigidity of the hub 300 may be increased by changing the composite winding angles of the main dome 300a, the first sub dome 300b, and the second sub dome 300c constituting the hub 300.
  • the degree of radial expansion may be different for each of the main dome 300a, the first subdome 300b, and the second subdome 300c. Because of this, by following the radial deformation of the rotor when the flywheel rotates at high speed, the hub 300 may also be well inflated or deformed in the radial direction, and the adhesion between the rotor and the hub 300 may be maintained firmly.
  • the first sub dome 300b winds the composite material at an angle smaller than the winding angle of the main dome 300a, and the second sub dome 300c. May wind the composite material at an angle smaller than the winding angle of the first subdome 300b.
  • the winding angle ⁇ 2 of the first subdome 300b is smaller than the winding angle ⁇ 1 of the main dome 300a
  • the winding angle ⁇ 3 of the second subdome 300c is the first subdome ( It may be formed smaller than the winding angle ⁇ 2 of 300b).
  • the main dome 300a winds the composite material to have a thickness smaller than that of the first subdome 300b and the second subdome 300c.
  • the composite material can be wound to have a thickness greater than the thickness of).
  • the composite winding thickness of the main dome 300a is smaller than the composite winding thickness of the first subdome 300b and larger than the composite winding thickness of the second subdome 300c, thereby forming the inner winding 300a and the outer winding.
  • the hub 300 can be prevented from escaping from the rotor because the inner winding expands more radially and pushes the outer winding toward the rotor during high-speed rotation. have.
  • the first sub-dome 300b is different from the starting position of the composite winding of the second sub-dome 300c with respect to the outer surface of the main dome 300a. You can start winding the composite at.
  • the main dome 300a, the first subdome 300b, and the second subdome 300c constituting the hub 300 may be formed to have different positions at which the composite material starts winding. That is, the first sub dome 300b may have a winding start position different from the composite winding start position of the second sub dome 300c with respect to the outer surface of the main dome 300a.
  • Steps 1200 and 1300 of forming the sub-domes 300b and 300c may be performed by varying the starting positions of the composite windings of the first sub dome 300b and the second sub dome 300c with respect to the outer surface of the main dome 300a.
  • the radial stiffness of the hub 300 can be adjusted.
  • the main dome 300a winds the composite material over the entire mandrel, while the first subdome 300b has a cylindrical portion and a conical portion at both ends of the cylindrical portion of the main dome 300a. You can see that it winds up a bit.
  • the second subdome 300c is wound only on the cylindrical portion of the first subdome 300b.
  • three winding layers are formed on the cylindrical portion of the hub 300 while only two or one winding layer is formed on both ends of the cylindrical portion.
  • the stiffness required by the hub 300 may be adjusted by changing the winding start position of the composite material such that the portions where the composite material is overlapped are differently wound. At this time, the determination of the starting position of the winding can be determined at the design stage through structural analysis.
  • the first sub-dome (300b) is closer to the insertion hole 302 than the composite winding start position of the second sub-dome (300c) May start winding, and the composite winding starting position of the first sub dome 300b may be located on an outer surface of the cone portion of the main dome 300a.
  • the composite winding start position A of the first subdome 300b is closer to the insertion hole 302 of the hub 300 than the composite winding start position of the second subdome 300c. It may be formed close, the composite winding start position (A) of the first sub dome (300b) may be located on the outer surface of the conical portion of the main dome (300a).
  • the opening 303 side of the hub 300 is wound in a plurality of layers. It is desirable to form a composite winding of.
  • the main dome 300a may wind the composite material such that the thickness of the insertion hole 302 is greater than the thickness of the opening 303.
  • the main dome 300a may have a winding thickness B at the insertion hole 302 greater than a winding thickness C at the opening 303 side.
  • Winding (B) of the insertion hole 302 side should be able to maintain the adhesive state of the rotating shaft and the hub 300 even at high speed rotation, for this purpose it is preferable to winding thick so that the hub 300 does not expand even at high speed rotation.
  • the winding of the opening 303 side of the hub 300 is preferably wound to have a relatively thin thickness so that it can easily expand during high-speed rotation.
  • forming the sub dome (300b, 300c) (1200, 1300) is the winding length of the composite material in the longitudinal direction of the rotation axis is the main dome (300a), the first subdome (300b) and the second subdome ( The composite material can be wound up in order of 300c).
  • the winding length of the main dome 300a is the longest along the longitudinal direction of the rotation axis, the winding length of the first subdome 300b is next, and the winding of the second subdome 300c.
  • the smallest length As such, the windings are gradually shortened with respect to the longitudinal direction of the rotation axis from the inner winding layer to the outer winding layer, so that a plurality of winding layers can be formed only in the portion bonded to the rotor.
  • the radial stiffness can be increased.
  • Figure 7 is a perspective view of the various forms of the flywheel hub made by the manufacturing method according to an embodiment of the present invention
  • Figure 8 is a flywheel equipped with a flywheel hub made by a manufacturing method according to an embodiment of the present invention Incision perspective view.
  • the flywheel hub 300 according to an embodiment of the present invention may be applied in various forms by combining a single dome or two or more domes as shown in FIG. 7. That is, the hub 300 according to an embodiment of the present invention may be formed in a multistage form of three or more stages by combining a plurality of domes as well as two stages.
  • each dome can adjust its rigidity using a variety of composite materials. If the stiff fiber is used, the structural rigidity is good but does not increase well during rotation. If the stiff fiber is used, the structural stiffness is decreased but the length is increased.
  • the type of fiber to be used can be determined. In this case, two or more fibers may be mixed and used.
  • the hub 300 is assembled between the rotary shaft 100 constituting the flywheel 10 and the rotor 200, and an outer diameter portion having a large diameter is disposed on the inner surface of the rotor 200.
  • the inner diameter portion having a small diameter is in contact with the rotating shaft 100.
  • the flywheel 10 for storing energy includes a rotor 200, a rotation shaft 100, and a rotor 200 that are wrapped in a state spaced apart from the rotation shaft 100 and the rotation shaft 100. It may be configured to include a hub 300 which is disposed between the interconnection between the rotary shaft 100 and the rotor 200.
  • the hub 300 is formed by manufacturing the composite material 301 by the filament winding method as described above.
  • the hub 300 is preferably to be assembled to the rotary shaft 100 and the rotor 200 in a press-fit (press-fit). That is, the inner diameter of the hub 300 is formed to be slightly smaller than the diameter of the rotation shaft 100, and the outer diameter of the hub 300 is formed slightly larger than the inner diameter of the rotor 200, the rotation shaft 100 and / or Compress the hub 300 by cooling or press to assemble by interference fit.
  • the inner diameter of the hub 300 is formed to be slightly smaller than the diameter of the rotating shaft 100, and assembled by fitting to the inner diameter of the hub 300 in a state in which the rotating shaft 100 is compressed through cooling or pressing. Do it.
  • the outer diameter of the hub 300 is formed slightly larger than the inner diameter of the rotor 200, and assembled by fitting to the inner diameter of the rotor 200 in a state in which the hub 300 is compressed through cooling or pressing. Do it.
  • the hub 300 is able to continuously connect the rotor 200 and the rotating shaft 100.
  • the present invention can be used for energy storage devices and the like.

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Abstract

La présente invention se rapporte à un procédé de préparation d'un moyeu de volant. Le procédé de préparation d'un moyeu de volant qui relie le rotor d'un volant et un arbre rotatif, comprend : une étape d'enroulement consistant à enrouler un matériau composite en une forme d'enceinte sous pression creuse ; une étape de durcissement consistant à durcir le matériau composite enroulé ; et une étape de découpe consistant à découper le matériau composite enroulé en une forme d'enceinte sous pression selon une forme de dôme. L'étape d'enroulement comprend les étapes suivantes qui consistent à : former un dôme creux principal dans lequel un trou d'introduction destiné à introduire l'arbre rotatif est formé à une extrémité longitudinalement le long de l'arbre rotatif, et une ouverture est formée à l'autre extrémité ; et enrouler le matériau composite sur une surface extérieure du dôme principal pour former un sous-dôme. Au moins un dôme principal ou sous-dôme s'étend dans la direction radiale de l'arbre rotatif par la rotation de l'arbre rotatif et du rotor, et il est ainsi possible de maintenir un état adhésif pour le sous-dôme et le rotor.
PCT/KR2011/000157 2010-10-01 2011-01-11 Procédé de préparation de moyeu de volant Ceased WO2012043939A1 (fr)

Applications Claiming Priority (2)

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KR10-2010-0095757 2010-10-01
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EP2698557A1 (fr) * 2012-08-14 2014-02-19 Enrichment Technology Deutschland GmbH Accumulateur d'énergie à roue volante
CN114844288A (zh) * 2022-06-09 2022-08-02 中国科学院工程热物理研究所 一种防脱离飞轮转子结构及储能系统

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KR101290887B1 (ko) 2011-06-21 2013-07-29 한양대학교 에리카산학협력단 고속 회전용 복합재 로터 및 그 조립 방법

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EP2698557A1 (fr) * 2012-08-14 2014-02-19 Enrichment Technology Deutschland GmbH Accumulateur d'énergie à roue volante
WO2014026970A1 (fr) * 2012-08-14 2014-02-20 Enrichment Technology Deutschland Gmbh Accumulateur cinétique
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