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WO2011158382A1 - Ensemble palier d'arbre magnétique et système contenant ce dernier - Google Patents

Ensemble palier d'arbre magnétique et système contenant ce dernier Download PDF

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Publication number
WO2011158382A1
WO2011158382A1 PCT/JP2010/060591 JP2010060591W WO2011158382A1 WO 2011158382 A1 WO2011158382 A1 WO 2011158382A1 JP 2010060591 W JP2010060591 W JP 2010060591W WO 2011158382 A1 WO2011158382 A1 WO 2011158382A1
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WO
WIPO (PCT)
Prior art keywords
magnetic
shaft
bearing
pole
magnetic shaft
Prior art date
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Ceased
Application number
PCT/JP2010/060591
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English (en)
Japanese (ja)
Inventor
池田一博
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Individual
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Individual
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Priority to JP2012520237A priority Critical patent/JPWO2011158382A1/ja
Priority to PCT/JP2010/060591 priority patent/WO2011158382A1/fr
Publication of WO2011158382A1 publication Critical patent/WO2011158382A1/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
    • H02K7/08—Structural association with bearings
    • H02K7/09—Structural association with bearings with magnetic bearings
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C3/00—Shafts; Axles; Cranks; Eccentrics
    • F16C3/02—Shafts; Axles
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
    • F16C32/0406—Magnetic bearings
    • F16C32/0408—Passive magnetic bearings
    • F16C32/0423—Passive magnetic bearings with permanent magnets on both parts repelling each other
    • F16C32/0429—Passive magnetic bearings with permanent magnets on both parts repelling each other for both radial and axial load, e.g. conical magnets
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C39/00—Relieving load on bearings
    • F16C39/06—Relieving load on bearings using magnetic means
    • F16C39/063—Permanent magnets

Definitions

  • the present invention relates to a bearing that rotatably supports a shaft that can be applied to various fields such as a motor, a generator, an electric vehicle or a hybrid vehicle, an electric motorcycle, a hybrid motorcycle, or a special vehicle, and a system incorporating the same.
  • a motor is a device that converts electrical energy into kinetic energy. Generally, it supplies electric power to the armature to generate a magnetic field, and rotates by obtaining magnetic attraction and magnetic repulsion obtained between the field and the motor. It is a mechanism that enables continuous rotation by switching the polarity of the armature.
  • bearing component as a mechanism for continuously rotating the shaft of the armature of the motor.
  • electric vehicles have attracted attention as an alternative to engine vehicles.
  • a motor as a mechanism for converting electric energy into kinetic energy
  • a bearing component as a mechanism for continuously rotating the motor shaft.
  • the basic structure of a generator is the same as that of a motor, but when a shaft connected to a rotor is rotated by an external force to give mechanical rotational drive energy, it is converted into electrical energy in the generator coil, and the electric power is extracted.
  • a bearing component as a mechanism for continuously rotating the shaft of the generator.
  • bearings exist as an important member in mechanisms that involve rotational movement, such as motors and generators, but conventional sliding bearings and rolling bearings have contact with the shaft, and parts that have been polished to smooth the contacts.
  • FIG. 10 An example is known that shows the idea of using a magnetic repulsive force to float and reduce the frictional force of the bearing.
  • An example is shown in FIG.
  • the example of FIG. 10 is a conventional example applied to a spindle motor. A magnet is arranged on the surface of a rotating body, a magnet is also arranged on the bearing side, and both have the same polarity, thereby generating a repulsive force of magnetic force. This reduces the frictional force by reducing the number of mechanical contacts.
  • magnets are arranged in the direction of rotation outward, and no magnetic repulsion is obtained in the direction of the rotation axis. If it rotates on the rotating base like a spindle motor, the movement is mechanically restricted in the direction of the rotation axis, and it can be said that there is no need to consider the control of the magnetic force in the direction of the rotation axis.
  • JP 09-322474 A JP 09-322474 A
  • the first problem is that the repulsive force of the generated magnet is dispersed into the component in the rotation outward direction and the component in the rotation axis direction. There is a problem that it is difficult to obtain a sufficient force for controlling the rotating shaft. Although a load tends to be applied to the shaft in the rotationally outward direction, the magnet mounting angle is adjusted so as to increase the rotationally outward component of the repulsive force of the magnet disclosed in Japanese Patent Laid-Open No. 05-146109. If it goes, conversely, the component of the repulsive force of the magnet in the direction of the rotation axis will suddenly decrease, making it impossible to control the three-dimensional movement.
  • the force of the repulsive force of the magnet corresponding to the load as the component of the rotation outward direction has to be adjusted to an angle that can obtain a balanced balance between the component of the magnet repulsion force in the rotation outward direction and the component in the rotation axis direction.
  • the second problem of the technique disclosed in Japanese Patent Laid-Open No. 05-146109 is that it is difficult to adjust the direction of the magnetic force of the magnet to be arranged, and it is difficult to obtain a strong magnetic force.
  • the magnetic force of the magnet can be easily designed if the shape of both ends where the magnetic pole appears is symmetrical, and the direction of the magnetic force can be adjusted.
  • the force of pushing the rotating shaft toward the center side is balanced by the repulsive force of the magnets provided at both ends of the rotating shaft, and it is stationary in the direction of the rotating shaft, but the stationary state is on a delicate balance In fact, vibrations occur in the direction of the rotation axis, and the vibrations are not easily cured. If force is applied from one side to the other for some reason, the balance is lost and the rotating shaft moves to one side. For example, when it moves to the left, it is pushed back by receiving a large repulsive force from the bearing magnet at the left end of the rotating shaft and moves to the right, but this time it is pushed back by receiving a large repulsive force from the bearing magnet at the right end of the rotating shaft.
  • the present invention can be applied to a rotating shaft that rotates freely, and can obtain an effective force for both the component in the rotation outward direction and the component in the rotation axis direction.
  • An object is to provide a shaft bearing device. It is another object of the present invention to provide a magnetic shaft bearing device that can be rotated in a stable state while suppressing a vibration phenomenon of a freely rotating rotating shaft.
  • the first magnetic shaft bearing device of the present invention is an integral magnetic body in which the entire shaft is magnetized, and N-pole magnetism appears at one end and S-pole magnetism appears at the other end. It is equipped with a magnetic shaft to be the shaft and two bearing parts, each bearing surface has the same magnetism as the end part of the magnetic shaft facing each other, and can rotate while floating the magnetic shaft by the magnetic repulsive force
  • the end of the magnetic shaft having a magnetic pole at both ends of the magnetic shaft, and an outer peripheral surface facing the outer peripheral direction of the rotating shaft and an axial direction facing the axial direction of the rotating shaft
  • a magnetic pole is formed integrally with the outer peripheral surface and the axial surface at each of the end portions, and the shape of the bearing surface of the magnetic bearing is the outer peripheral surface of the magnetic shaft.
  • the magnetic shaft can also be used as a shaft of a rotating body that supports and rotates, and the two bearing portions can also be used as bearings at the end of the shaft of the rotating body.
  • the second magnetic shaft bearing device of the present invention is a first magnetic shaft which is an integral magnetic shaft in which the entire shaft is magnetized, and N poles at one end and S poles at the other end appear.
  • the second magnetic shaft the first magnetic bearing which is a magnetic bearing of an integral magnetic body in which the entire bearing surfaces at both ends are magnetized, and N poles at one end and S poles at the other end appear.
  • a bearing and a third magnetic bearing wherein the first magnetic shaft is disposed between the first magnetic bearing and the second magnetic bearing, and the second magnetic bearing and the third magnetic bearing.
  • the second magnetic shaft is disposed between the bearings so that the bearing surface has the same magnetism as the opposite end of the magnetic shaft, and the magnetic shaft is levitated by the repulsive force of magnetism.
  • the shape includes at least two surfaces of an outer peripheral surface facing the outer peripheral direction of the rotating shaft and an axial surface facing the axial direction of the rotating shaft, and the outer peripheral surface and the axial surface at each end portion Magnetic poles are produced integrally, and the shape of the bearing surface of the magnetic bearing is an inner peripheral surface facing the outer peripheral surface of the magnetic shaft, and an axial facing surface facing the axial surface of the magnetic shaft.
  • a magnetic shaft bearing device comprising at least two surfaces, wherein each of the bearing surfaces has a magnetic pole formed integrally with the inner peripheral surface and the shaft-opposing surface.
  • the second magnetic bearing which is one magnetic body, is also used as a magnetic bearing for two magnetic shafts, the first magnetic shaft and the second magnetic shaft.
  • a plurality of the second magnetic bearings are arranged in series, and the magnetic shaft is disposed between the adjacent second magnetic bearings.
  • the tip shape of the end portion at both ends of the magnetic shaft is substantially hemispherical, and the magnetic pole surfaces of the N pole and S pole appearing at the end portion are substantially hemispherical at the end portion.
  • the outer peripheral side magnetic pole surface is a magnetic surface appearing near the substantially hemispherical edge
  • the axial direction magnetic pole surface is a magnetic surface appearing near the top of the substantially hemispherical surface. It is characterized by.
  • magnetic poles are integrally formed on at least two surfaces of the outer peripheral surface facing the outer peripheral direction of the rotary shaft and the axial direction surface. An efficient force can be obtained on any of the components.
  • the tip shape of the end portion at both ends of the magnetic shaft is substantially hemispherical, and the magnetic pole surfaces of the N pole and S pole appearing at the end portion are substantially hemispherical at the end portion.
  • the outer peripheral surface is a surface in the vicinity of the substantially hemispherical edge
  • the axial surface is a surface in the vicinity of the substantially hemispherical apex.
  • the shape of the bearing surface of the bearing portion of the magnetic bearing is substantially mortar-shaped
  • the magnetic surface of the magnetic bearing has the substantially mortar-shaped shape of the bearing portion. It is preferable that it appears on the bearing surface.
  • the shape of the bearing portion of the magnetic bearing is a substantially mortar shape that is substantially the same as the substantially mortar shape of the bearing surface on the surface of the magnetic shaft opposite to the bearing surface on the axial extension direction side. And having a magnetic surface different from the bearing surface is preferable.
  • the bearing portion if the shape on the back side of the bearing surface is symmetrical with respect to the bearing surface where the magnetic pole appears, the direction of the magnetic force can be easily adjusted and a strong magnetic force can be obtained.
  • the shape of the back side of the bearing surface is made symmetrical, and magnetism is given, in a configuration in which a plurality of magnetic shaft bearing devices are arranged in series, the bearing portion at the boundary of adjacent magnetic shaft bearing devices should be shared.
  • both surfaces of the common bearing portion can be used as the bearing surfaces of the adjacent bearing portions.
  • the magnetic shaft is an integral magnetic body.
  • the S pole at the end where the N pole appears is the end of the N pole.
  • the N pole at the end where the S pole appears appears on the back side of the end of the S pole.
  • an extension shaft made of a non-magnetic material extending in the rotation axis direction with respect to the magnetic shaft is provided, and the extension shaft is provided in the bearing portion of the magnetic bearing.
  • a through hole is provided to guide the outside to the outside, the size and position of the through hole do not touch the extension shaft, and the magnetic shaft and the extension shaft are rotated together.
  • the rotating body is incorporated into the entire shaft and the bearing portion of the rotating body, and incorporated into the shaft of the rotating body and the bearings of the rotating bodies at both ends.
  • a structure is also possible. That is, it is a structure in which the magnetic shaft is combined with the original shaft of the rotating body for supporting and rotating, and the two bearing portions are combined with the original bearing at the end of the shaft of the rotating body.
  • a structure in which the entire magnetic shaft bearing device of the present invention is incorporated in the original bearings at both ends is also possible.
  • the magnetic shaft bearing device of the present invention has various uses.
  • the magnetic bearing of the present invention can be incorporated in various vehicles such as automobile tires such as passenger cars, trucks, and buses, motorcycles such as motorcycles, and special vehicles. It can also be applied as a bearing device for a power generation turbine of a hydroelectric power plant or a thermal power plant.
  • FIG. 1 is a diagram simply showing a basic configuration of a magnetic shaft bearing device 100 according to a first embodiment.
  • FIG. 2 is a diagram showing the internal structure of the magnetic shaft bearing device 100 according to the first embodiment of FIG. 1 and the magnetism of each component.
  • FIG. 3 shows a vertical magnetic repulsive force F1 obtained between the outer peripheral side magnetic pole surface of the end 22a of the magnetic shaft 20 and the inner peripheral side magnetic pole surface of the bearing surface 32a of the magnetic bearing 30, and the magnetic shaft 20 4 is a diagram showing a horizontal magnetic repulsive force F2 obtained between the axial magnetic pole surface of the end 22a and the axially opposed magnetic pole of the bearing surface 32a of the magnetic bearing 30.
  • FIG. 4 is a diagram showing a configuration in which a plurality of magnetic shaft bearing devices are arranged in series in order to support a large load in a large motor or the like.
  • FIG. 5 is a diagram showing a configuration in which a plurality of magnetic shaft bearing devices are arranged in series in order to support a large load in an ultra-large motor or the like.
  • FIG. 6 is a diagram showing an example applied to the electric vehicle 300 and the electric motorcycle 400.
  • FIG. 7 is a diagram showing an example applied to a bearing of a power generation turbine of a hydroelectric power plant or a thermal power plant.
  • FIG. 8 is a view showing a conventional example of a bearing applied to a spindle motor.
  • Example 1 is a structural example of the magnetic shaft bearing device 100 of the present invention.
  • the magnetic shaft of the magnetic shaft bearing device 100 of the present invention is also used as the shaft of the rotating body 200 for supporting and rotating, and the two bearing portions of the magnetic shaft bearing device 100 of the present invention are provided.
  • These are structural examples that are also used as bearings at both ends of the shaft of the rotating body 200.
  • FIG. 1 is a diagram schematically illustrating a basic configuration of a magnetic shaft bearing device according to a first embodiment. Of the components of the magnetic shaft bearing device 100, only the portions necessary for explanation are drawn, and the illustration of other structures and parts is omitted.
  • FIG. 1 is a structural example of the magnetic shaft bearing device 100 of the present invention.
  • FIG. 1A is a view showing the overall appearance of the motor 200 and the internal structure of the magnetic shaft bearing device 100 in an easy-to-understand manner.
  • FIG. 1B shows the magnetic shaft 20 and the magnetic bearing 30 inside the magnetic shaft bearing device 100. It is the figure which isolate
  • FIG. 2 is a cross-sectional view of only the magnetic shaft bearing device 100 taken out from the motor 200. Note that any part of the motor 200 other than the magnetic shaft bearing device 100, such as an armature, a field, a commutator, and an electric circuit, can be applied.
  • the magnetic shaft bearing device 100 of the present invention includes a magnetic shaft 20 and a magnetic bearing 30.
  • the housing is not particularly limited, but may be a non-magnetic material, for example.
  • the magnetic shaft 20 includes a shaft portion 21, an end portion 22a, and an end portion 22b.
  • the magnetic shaft 20 is an integral magnetic body having magnetism as a whole, and serves as a rotating shaft.
  • the material may be a magnetic material, but may be a stainless steel material, for example.
  • the extension shaft 40 is further provided in the extending direction of the rotating shaft with respect to the magnetic shaft 20 having magnetism integrally.
  • the extension shaft 40 is a non-magnetic material as will be described later.
  • poles appear at both ends of the magnetic body, that is, at the end 22a and the end 22b.
  • the magnetic shaft 20 is symmetrical when viewed from the center, magnetism tends to appear stably.
  • the end 22 a and the end 22 b at both ends are substantially hemispherical, and are arranged symmetrically with the shaft 21 interposed therebetween.
  • stable magnetic poles appear at the end portions 22a and 22b at both ends.
  • the magnetic poles of the magnetic shaft 20 are as shown in FIG. In the example of FIG.
  • the magnetic bearing 30 includes two bearing portions 31a and 31b, and is rotatably received while the magnetic shaft 20 is levitated by a magnetic repulsive force.
  • the bearing portions 31a and 31b have the same magnetism as the end portions 22a and 22b of the magnetic shaft 20 facing the respective bearing surfaces 32a and 32b. That is, as shown in FIG. 2B, the bearing surface 32a of the bearing portion 31a has an N pole, and the end portion 22a of the magnetic shaft 20 also has an N pole. 22 a floats from the bearing portion 30 a of the magnetic bearing 30.
  • the bearing surface 32b of the bearing portion 31b is the S pole
  • the end portion 22b of the magnetic shaft 20 is also the S pole, and both repel each other, so that the end portion 22b of the magnetic shaft 20 extends from the bearing portion 30b of the magnetic bearing 30.
  • a device for adjusting the vector component of the repulsive force generated between them is incorporated. .
  • the outer peripheral surface facing the outer peripheral direction of the rotating shaft and the axial direction facing the axial direction of the rotating shaft It is a device that has at least two of the surfaces, and that the magnetic poles are formed integrally with the outer peripheral surface and the axial surface.
  • the tip shapes of the end portions 22a and 22b at both ends of the magnetic shaft 20 are substantially hemispherical, and the magnetic pole surfaces of the N and S poles appear on the substantially hemispherical surface.
  • the tip shape is substantially hemispherical in this way, a magnetic surface appearing near the edge of the approximately hemispherical surface and a magnetic surface appearing near the top of the approximately hemispherical surface can be obtained as the magnetic surface.
  • the magnetic surface that appears in the vicinity of the rotation portion becomes the outer peripheral side magnetic pole surface that faces the outer side in the rotation direction of the rotating shaft, and the magnetic surface that appears in the vicinity of the substantially hemispherical top portion faces the axial direction side of the rotating shaft. It becomes a surface.
  • the shape of the bearing surface 32a is provided with at least two surfaces of an inner peripheral surface facing the outer peripheral surface of the magnetic shaft and an axial facing surface facing the axial direction surface of the magnetic shaft.
  • each of the bearing surfaces 32a a contrivance is made that a magnetic pole is formed integrally with the inner peripheral surface and the shaft facing surface.
  • An inner peripheral side magnetic pole surface is formed on the inner peripheral surface, and an axially opposed surface side magnetic pole surface is formed on the axially opposed surface.
  • the shape of the bearing surface 32a is substantially mortar-shaped.
  • a magnetic surface is obtained in which the inner peripheral side magnetic pole surface of the inner peripheral surface and the axially opposed surface side magnetic pole surface of the axially opposed surface are integrated.
  • FIG. 3 shows the magnetic repulsive force F1 in the vertical direction obtained between the outer peripheral side magnetic pole surface of the end portion 22a of the magnetic shaft 20 and the inner peripheral side magnetic pole surface of the bearing surface 32a of the magnetic bearing 30, and the end of the magnetic shaft 20 6 is a diagram showing a horizontal magnetic repulsive force F2 obtained between the axial magnetic pole surface of the portion 22a and the axially opposed magnetic pole of the bearing surface 32a of the magnetic bearing 30.
  • FIG. As described above, in the present invention, the magnetic repulsive force generated between the end 22a of the magnetic shaft 20 and the bearing surface 32a of the magnetic bearing 30 is obtained as the vertical force F1 and the horizontal force F2, and the vertical direction, A force that opposes both horizontal directions can be obtained efficiently.
  • the surface 33 on the side of the axial extension direction of the magnetic shaft opposite to the bearing surface 32 is also substantially the same as the mortar shape of the bearing surface 32.
  • the same substantially mortar-shaped shape is provided.
  • the magnetism has a magnetic surface 32 that is different from the bearing surface 32.
  • the end of the magnetic shaft 20 is made to correspond to the surface 33 opposite to the bearing surface 32, thereby Can function as a surface.
  • a transmission mechanism for using the magnetic shaft bearing device 100 of the present invention will be described.
  • the end portion 22 of the magnetic shaft 20 is surrounded in a non-contact manner by the bearing portion 30, and a transmission mechanism may be provided directly to the magnetic shaft 20, but the transmission mechanism is provided to the outside of the bearing portion 30. It is also possible to provide In the example of FIGS.
  • a nonmagnetic extension shaft 40 that extends in the direction of the rotation axis of the magnetic shaft 20 is provided, and a through hole that guides the extension shaft 40 to the outside is provided in the bearing portion 31 of the magnetic bearing 30. is there.
  • the size and position of the through hole are not touched to the extension shaft 40, and the magnetic shaft 20 and the extension shaft 40 are rotated together.
  • a device when the weight of a rotating body to be supported and rotated such as a large motor or a super large motor is large and a load on the shaft is large will be described. That is, two magnetic shaft bearing devices 100A and 100B of the present invention are used, and are respectively provided at one end and the other end extended from the shaft of the rotating body to be supported and rotated, and each of the magnetic shaft bearing devices 100A and 100B of the present invention. Is an example of a structure applied to the original bearing portion at the end of the shaft of the rotating body.
  • FIG. 4 is a diagram showing an example in which the magnetic shaft bearing devices 100A and 100B of the present invention are used for the bearing portions at both ends of the large motor 200A, respectively.
  • the internal structure of both the magnetic shaft bearing devices 100A and 100B has a configuration in which the magnetic shaft bearing devices 100 shown in the first embodiment are arranged in series.
  • FIG. 5 is a diagram showing an example in which the magnetic shaft bearing devices 100C and 100D of the present invention are used for the bearing portions at both ends of the super large motor 200B, respectively.
  • the internal structure of each of the magnetic shaft bearing devices 100C and 100D has a configuration in which three magnetic shaft bearing devices 100 shown in the first embodiment are arranged in series.
  • the magnetic shaft bearing device 100A includes the first magnetic shaft 20a and the second magnetic shaft 20b as the magnetic shaft, and the first magnetic bearing 30a and the second magnetic shaft 20b as the bearing portions.
  • the structure has three magnetic bearings 30b and a third magnetic bearing 30c.
  • the center second magnetic bearing 30b has a structure in which the bearing surface at the right end of the magnetic shaft 20a and the bearing surface at the left end of the magnetic shaft 20b are shared.
  • the magnetic shaft and the magnetic bearing are connected in series as shown in FIG.
  • both surfaces of the magnetic bearing portion that can be shared can be used as the bearing surfaces of the adjacent magnetic shafts.
  • it can be used as a bearing surface that receives the end of the adjacent magnetic shaft 20.
  • a plurality of second magnetic bearings 30b may be arranged in series, and a new magnetic shaft 20 may be disposed between the second magnetic bearings 30b.
  • a new magnetic shaft 20 may be disposed between the second magnetic bearings 30b.
  • three magnetic shafts 20 and four magnetic shafts are arranged. What has the bearings 30 arranged in series is obtained.
  • the magnetic shaft bearing device of the present invention has various uses.
  • the magnetic shaft bearing device of the present invention can be applied to shafts of various devices that are driven by a motor.
  • it can be incorporated into shaft bearings of various vehicles such as electric passenger cars driven by motors, electric motorcycles such as motorcycles driven by motors, and special vehicles driven by motors.
  • Examples of a vehicle and a power generation turbine to which the magnetic shaft bearing device of the present invention is applied will be given.
  • FIG. 6A shows an example applied to the electric vehicle 300.
  • the present invention is not limited to the type of vehicle shown in FIG. 6A, and can be applied to a wide variety of vehicles.
  • FIG. 6B shows an example in which the magnetic shaft bearing device of the present invention is applied to an electric motorcycle 400 such as a motorcycle.
  • the present invention is not limited to the type of motorcycle shown in FIG. 6B, and can be applied to various types of motorcycle tires.
  • the magnetic shaft bearing device of the present invention can be applied even to other special vehicles such as heavy machinery.
  • the magnetic shaft bearing apparatus of this invention is applicable.
  • the magnetic shaft bearing apparatus of this invention is applicable to the bearing part of the power generation turbine of a hydropower station, for example.
  • the magnetic shaft bearing apparatus of this invention is applicable to the bearing part of the power generation turbine of a thermal power plant, for example.
  • the structural example of the magnetic shaft bearing apparatus concerning Example 2 of this invention was shown, the said structure is an example and a various change is possible.
  • the preferred embodiment of the configuration example of the magnetic shaft bearing device has been illustrated and described above, it will be understood that various modifications can be made without departing from the technical scope of the present invention.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

La présente invention se rapporte à un ensemble palier d'arbre magnétique qui peut fournir une forte répulsion dans une direction rotation vers l'extérieur et dans la direction de rotation axiale et empêche un arbre magnétique de vibrer dans la direction de rotation axiale. L'ensemble palier d'arbre magnétique comprend un arbre magnétique intégré (20) qui porte le magnétisme sur tout l'arbre et se compose d'une substance magnétique pour que le pôle N pole et le pôle S apparaissent sur les deux parties d'extrémité ; et un palier magnétique (30) qui porte le magnétisme du même pôle que celui de la partie d'extrémité opposée (22) de l'arbre magnétique (20) pour mettre en lévitation magnétique et supporter en rotation l'arbre magnétique (20) par répulsion magnétique. La partie d'extrémité (22) de l'arbre magnétique (20) est façonnée pour avoir une surface circonférentielle extérieure dans la direction circonférentielle extérieure de l'axe de rotation et une surface axiale dans la direction axiale de l'axe de rotation, avec un pôle magnétique développé d'un seul bloc sur la surface circonférentielle extérieure et la surface axiale au niveau de la partie d'extrémité (22). La surface portante du palier magnétique (30) est façonnée pour avoir une surface circonférentielle intérieure opposée à la surface circonférentielle extérieure de l'arbre magnétique (20) et une surface axialement opposée s'opposant à la surface axiale de l'arbre magnétique, avec un pôle magnétique développé d'un seul bloc sur la surface circonférentielle intérieure et la surface axialement opposée.
PCT/JP2010/060591 2010-06-16 2010-06-16 Ensemble palier d'arbre magnétique et système contenant ce dernier Ceased WO2011158382A1 (fr)

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JP2012520237A JPWO2011158382A1 (ja) 2010-06-16 2010-06-16 磁気シャフト軸受装置およびそれを組み込んだシステム
PCT/JP2010/060591 WO2011158382A1 (fr) 2010-06-16 2010-06-16 Ensemble palier d'arbre magnétique et système contenant ce dernier

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Cited By (4)

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WO2017158710A1 (fr) * 2016-03-15 2017-09-21 株式会社ナカダクリエイト Appareil de roue libre et appareil à moteur de génération de puissance et d'entraînement
CN107575474A (zh) * 2017-08-18 2018-01-12 北京石油化工学院 一种叠加效应的三自由度隐式洛伦兹力磁轴承
CN108808973A (zh) * 2018-06-15 2018-11-13 苏州忻庭沢机电科技有限公司 一种双轴磁悬浮轴承磁阻电机
CN112578853A (zh) * 2020-12-15 2021-03-30 安徽东升达精密机件有限公司 一种止停固定机构及基于该机构的笔记本电脑转轴

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5790418A (en) * 1980-10-03 1982-06-05 Nikoritsuku Buramiiru Shaft with magnetic table
JPS5883552A (ja) * 1981-11-12 1983-05-19 Hitachi Koki Co Ltd 回転機
JPS618245A (ja) * 1984-06-22 1986-01-14 Shoichi Akaha スピンドル支持装置
JPS63225721A (ja) * 1987-03-05 1988-09-20 エステレ・クルート 磁気軸受
WO2004022988A1 (fr) * 2002-09-03 2004-03-18 Seiko Epson Corporation Palier magnetique

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5790418A (en) * 1980-10-03 1982-06-05 Nikoritsuku Buramiiru Shaft with magnetic table
JPS5883552A (ja) * 1981-11-12 1983-05-19 Hitachi Koki Co Ltd 回転機
JPS618245A (ja) * 1984-06-22 1986-01-14 Shoichi Akaha スピンドル支持装置
JPS63225721A (ja) * 1987-03-05 1988-09-20 エステレ・クルート 磁気軸受
WO2004022988A1 (fr) * 2002-09-03 2004-03-18 Seiko Epson Corporation Palier magnetique

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017158710A1 (fr) * 2016-03-15 2017-09-21 株式会社ナカダクリエイト Appareil de roue libre et appareil à moteur de génération de puissance et d'entraînement
CN107575474A (zh) * 2017-08-18 2018-01-12 北京石油化工学院 一种叠加效应的三自由度隐式洛伦兹力磁轴承
CN108808973A (zh) * 2018-06-15 2018-11-13 苏州忻庭沢机电科技有限公司 一种双轴磁悬浮轴承磁阻电机
CN108808973B (zh) * 2018-06-15 2020-07-03 苏州忻庭沢机电科技有限公司 一种双轴磁悬浮轴承磁阻电机
CN112578853A (zh) * 2020-12-15 2021-03-30 安徽东升达精密机件有限公司 一种止停固定机构及基于该机构的笔记本电脑转轴

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