JPS61164442A - Energy input/output device for superhigh-speed rotating fly-wheel - Google Patents

Abstract

PURPOSE:To obtain the device of high efficiency for standing superhigh-speed rotation, by forming a slide member for linking a hub on a rotary shaft to a rim, with a permanent magnet, and by arranging a stator having a generating/ motor-operating coil inside the permanent magnet. CONSTITUTION:A hub 2 is fitted on a rotary shaft 1 rotating with surplus energy or the like, and the outer peripheral face of the hub is processed in a toothed gear shape, and a plurality of slide guide channels 3 opening in the radial direction are provided, and slide guide channels 4 in the circumferential direction are provided for the outer peripheral face of the hub. A slide member 5 made of a permanent magnet is inserted into the slide guide channels 3, 4 of the hub 2, and a ring-shaped rim 11 made of fiber reinforced plastics is pressed in and engaged frictionally with the outer peripheral section of the slide member to form a fly-wheel. A stator 16 having a generating/motor- operating coil 17 is arranged on the inner peripheral side of the slide member 5 made of the permanent magnet.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an energy input/output device for a flywheel that rotates at an extremely high speed.

[Prior art] When an energy storage flywheel is rotated at an ultra-high speed, surplus energy is stored in the form of rotational energy and taken out for use when needed, the flywheel rotates at an ultra-high speed. , it is extremely difficult to extract energy efficiently; for example, even if you try to connect it directly to a generator, the rotor of the generator cannot withstand ultra-high speed rotation, and if you use a speed reduction mechanism etc. to slow down the rotation, the energy transfer will be difficult. A significant drop in efficiency is inevitable.

[Problems to be Solved by the Invention] The present invention provides a structure for withstanding the ultra-high-speed rotation required of a flywheel that rotates at ultra-high speed when a rotating machine that functions as a generator or an electric motor is incorporated into the flywheel. It is an object of the present invention to provide an energy input/output device that is useful for highly efficient energy conversion in energy conversion rotating machines.

Means for Solving Problem c] To achieve the above object, the energy input/output device of the present invention is provided with a large number of sliding guide grooves that open in the radial direction on the outer periphery of a hub on the rotating shaft, and , the annular l1
In an ultra-high-speed rotating flywheel in which a sliding member is inserted into a reinforced plastic rim, the sliding member is formed of a permanent magnet, and a It is characterized by a stator having a coil that generates power or rotational force.

[Operations and Effects] In the energy input/output device having the above configuration, a sliding member connecting the hub and rim on the rotating shaft is formed of a permanent magnet, and a sliding member is formed inside the sliding member by interaction with the permanent magnet. Since the stator is equipped with a coil that generates electricity or rotational force, if the rotational energy of the rim that makes up the flywheel is converted into electrical energy by the sliding member and the coil, it functions as a generator, and conversely, the coil If electromagnetic rotational force is applied to the sliding member, it functions as an electric motor.

When the above-mentioned generator and electric motor are operated as any rotating machine, as the rotational speed increases, a large force based on centrifugal force acts on the rim etc., causing the rim to expand in the radial direction. Due to the deformation, the sliding member fitted into the sliding guide groove of the hub is displaced in a radial direction and pulled out from the hub, preventing damage to each part, and increasing the force with which the sliding member comes into contact with the inner circumference of the rim. However, this makes it possible to adjust the radial stress within the rim to the compressive stress side.
Therefore, it can be made to withstand rotation at extremely high speeds.

[Examples] Examples of the present invention will be described in detail below with reference to the drawings.

In Figures 1 and 2, reference numeral 1 denotes a rotating shaft that rotates due to surplus energy, etc. The outer peripheral surface of an aluminum hub 2 attached to the shaft 1 is machined into a gear shape, so that it runs in the axial direction and emits radiation. A large number of sliding guide grooves 3 that open in the direction are provided, and a sliding guiding groove 4 that extends in the circumferential direction is provided on the outer peripheral surface thereof.

Further, a large number of sliding members 5, for example, 24 or 38 sliding members 5, which correspond to the number of sliding guide grooves 3, arranged on the outside of the hub 2, are composed of permanent magnets, and are rotated integrally with the hub 2. Therefore, a sliding guide protrusion 7 is provided to protrude in the radial direction on the inner surface of the rim contact surface 6 facing the outer circumference of the hub 2, and the guide protrusion 7 is inserted into the sliding guide groove 3 of the hub 2.
, 4.

Each of the sliding members 5 and the rim 11.11 is press-fitted with an annular rim 11.11 made of fiber-reinforced plastic acid on the outside with the circumferential protrusion 8 in between.
11 are configured to rotate together due to the frictional force acting between them. Each of the rims 11 includes, for example, an inner rim 12 made of glass fiber reinforced plastic (GF RP) and a carbon fiber reinforced plastic (CF RP).
These inner and outer rims 12.13 are preferably constructed as an integral part with an outer rim 13 made of
, D, and their ratio D+
The optimum value of D2 is determined depending on the specific gravity, strength, elasticity, etc. of the constituent materials of both rims 12 and 13. Furthermore, the first
As clearly shown in the figure, in order to incorporate a rotating machine for energy conversion into the flywheel formed as described above, power generation or rotational force is generated inside the sliding member 5 by interaction with the permanent magnets that constitute it. A stator 16 having a coil 17 that generates is arranged.

The stator 1B can not only stand still, but also be configured to be rotatable by any means, and has a shaft hole 18 in its center into which the rotating shaft 1 is inserted. A hub 2 extending radially from a bored post 19
A coil 17 is provided at the outer peripheral position of 0.

The gap 21 between the outer circumferential surface of the coil 17 and the inner circumferential surface of the sliding member 5 is created by considering that the sliding member 5 is displaced in the radial direction due to centrifugal force as the sliding member 5 rotates.
It is formed to be as narrow as possible under certain conditions.

In the flywheel configured as described above, when the rotating shaft l is rotated by surplus energy, the sliding member 5 and the rim 11 that engage with the hub 2 on the rotating shaft l rotate, thereby converting the above energy into rotational energy. stored in the flywheel in the form of Furthermore, the sliding member 5 (permanent magnet) can be rotated together with the rim 11 by electromagnetic force or the like, thereby allowing energy to be distributed to the flywheel.

Further, the above rotating mechanism can function both as a generator and as an electric motor. When functioning as a generator, the coil 1 of the stator IB is rotated by the rotation of the flywheel.
An electromotive force is generated at 7, and electricity is generated. The power generation described above is performed extremely efficiently because the flywheel does not slow down even if it is rotating at an extremely high speed.

When the flywheel is rotated at high speed as a rotor, a significantly large centrifugal force acts on the rim 11, and this centrifugal force causes the sliding member 5 to move between the sliding guide protrusion 7 and the sliding guide grooves 3 and 4. Displaced in the radial direction away from the hub 2 by guidance.

By pressing the inner circumferential surface of the rim 11, radial stress within the rim 11 is converted into compressive stress, thereby preventing damage to the flywheel.

Furthermore, when using the above rotating machine as an electric motor,
As in a general-purpose electric motor, it is sufficient to generate an electromagnetic force for rotating the sliding member 5 (permanent magnet) by passing a current through the coil 17, thereby rotating the sliding member 5 and the rim 11. By rotating the rim member 5 and the rim 11 at an ultra-high speed, it can be used as an ultra-high-speed, high-output motor.
By rotating the rotor, the relative rotational speed with the flywheel can be lowered, thereby making it possible to extract mechanical output at low speed rotation.

[Effects of the Invention] As described above, according to the input/output device of the present invention, it is possible to obtain unprecedented high-speed rotation in a compact size, and especially when used as an ultra-high-speed electric motor, the rim diameter can be reduced to 200 mm.
+m, rotation of approximately 75,000 rpm can be achieved. Furthermore, since the entire rotating machine can be housed in a vacuum chamber, there is no need for complicated vacuum sealing.

[Brief explanation of drawings]

FIG. 1 is a partial sectional view showing the main parts of an embodiment of the present invention, and FIG.
The figure is a partially cutaway perspective view with the stator omitted. 1 Φ・rotating shaft, 2 φ hub, 4... sliding guide groove, 5... sliding member, 11... rim,
18 stator, 17 Φ coil. Figure 1 Figure 2

Claims (1)

[Claims] 1. An ultra-high-speed rotating flywheel in which a large number of sliding guide grooves opening in the radial direction are provided on the outer periphery of the hub on the rotating shaft, and sliding members attached to an annular fiber-reinforced plastic rim are inserted into these grooves. The above-mentioned sliding member is formed of a permanent magnet, and a stator having a coil that generates power or rotational force by interaction with the permanent magnet constituting the sliding member is disposed inside the sliding member. Energy input/output device for ultra-high-speed rotating flywheels.