WO2010127572A1

WO2010127572A1 - Rotating magnetic levitation device and method for magnetically levitating top

Info

Publication number: WO2010127572A1
Application number: PCT/CN2010/071021
Authority: WO
Inventors: 洪证南
Original assignee: Hung Ching Nam
Priority date: 2009-05-07
Filing date: 2010-03-12
Publication date: 2010-11-11
Also published as: CN101882903B; CN101882903A

Abstract

A rotating magnetic levitation device and a method for magnetically levitating a spinning top. The rotating magnetic levitation device includes a magnetic base (11) with both poles oriented upwardly and downwardly, respectively, and a magnetic spinning top (16) with both poles situated along an axis line. A magnetic member (14) with both poles oriented upwardly and downwardly, respectively, is provided above the magnetic base (11). A space for accommodating the spinning top (16) is formed above the magnetic base (11) by the magnetic member (14). The adjacent poles of the magnetic member (14) and the magnetic base (11) have the same polarity, and the pole of the magnetic member (14) is oriented towards the same direction as the pole of the spinning top (16) with the same polarity. This increases the stability and the levitation time of the spinning top of the rotating magnetic levitation device.

Description

Rotary magnetic levitation device and gyro magnetic suspension method

Technical field

The present invention relates to magnetic levitation technology, and more particularly to a rotary magnetic levitation device and a gyro magnetic suspension method. Say

Book

The polarity of the magnet has the characteristics of homosexual repelling and opposite phase attraction. Using this property of the magnet, there is an interaction between the two magnets, but there is no direct contact. A wide application of this property is magnetic levitation. Figure 1 shows a rotating magnetic levitation device using magnetic levitation technology, which can be used as a gyroscope. The device comprises a magnetic bottom plate 1 which is weakened or non-magnetic at the geometric center, a pallet 2, and a magnetic gyro 3. The magnetic poles of the magnetic bottom plate 1 and the magnetic gyro 3 have the same polarity, and the magnets have the same polarity and mutually repel each other. The magnetic bottom plate 1 can lift the rotating magnetic gyro 3, and after the gyro 3 is stabilized, the pallet can be removed, so that the gyro 3 does not contact the pallet, and the gyro 3 is lost due to friction, so that the rotation time is longer. . The rotary magnetic levitation device relies on magnetic repulsion and spin gyro torsion (stability axis) to float the gyro. To float the gyro, the gyro is in a stable equilibrium state, so the gyro is required to be at the center of a symmetrical magnetic field, and the gyro's precession is used to track the magnetic lines upwards of the bottom plate to stabilize the gyro itself. If the gyro once deviates from the center of the magnetic field, the gyro is subjected to the asymmetry of the magnetic field, and will quickly drift toward the edge of the magnetic substrate, thereby losing stability. Since only a small area of the center of the disk-shaped magnetic bottom plate is a stable area, the rotary magnetic levitation device has the following disadvantages: The balance stable region of the magnetic levitation is very narrow, the magnetic field strength and the gyro weight accuracy are high, and the gyro rotation speed is limited, Too fast, the operation technology of the gyro magnetic levitation is high and difficult to grasp. A slight external disturbance will cause the gyro to escape from the equilibrium stable zone, which makes the gyro easy to lose stability. Summary of the invention

The technical problem to be solved by the present invention is that, in view of the disadvantage that the gyro in the conventional rotary magnetic levitation device is prone to drift and the stability is poor, the rotary gyro can self-adjust, prevent drift and escape, realize gyro magnetic levitation operation, and is easy to grasp and accurate. A rotary magnetic levitation device with low requirements, good stability, long suspension time, and a method for realizing gyro magnetic levitation by a rotating magnetic levitation device.

The technical solution adopted by the present invention to solve the technical problem is: constructing a rotary magnetic levitation device comprising: a magnetic bottom plate with two magnetic poles respectively facing upward and downward, and a magnetic gyro having two magnetic poles on a rotational axis thereof, and being disposed above the magnetic bottom plate a magnetic device having magnetic poles respectively facing upward and downward, wherein the magnetic device encloses a space for accommodating the gyro above the magnetic bottom plate, and the magnetic poles of the magnetic device adjacent to the magnetic bottom plate have the same polarity, and the magnetic poles of the magnetic device and the gyro The orientation is the same. With the rotary magnetic levitation device of the structure, the rotation of the gyro can make it have a stable axis, and the magnetic field magnetic field repulsion of the gyro can overcome the gravity of the gyro, and the gyro is in a suspended state; due to the magnetic field strength closer to the position of the magnetic device The larger, so when the gyro drifts to either side in the magnetic device, the repulsion of the gyro and the magnetic device on this side is enhanced, and the repulsion force on the opposite side is weakened, so that the magnetic device produces a gyro The force opposite to the gyro drift direction prevents the gyro from continuing to drift outward. Since the gyro does not escape, the balance and stability region of the magnetic levitation is wide in the present invention, the magnetic field strength and the gyro weight accuracy are low, and the gyro rotation speed is limited. The operation of the gyro-rotation magnetic levitation is simple and easy to grasp, and the ability to resist external disturbance is strong. Good stability and other advantages.

In the rotary magnetic levitation device of the present invention, the magnetic bottom plate is a rotationally symmetrical magnet, and the rotationally symmetrical magnet can generate a symmetrical magnetic field above it to facilitate the stability of the gyro.

In the rotary magnetic levitation device of the present invention, the magnetic device is a magnetic device that is rotationally symmetric about the center of the magnetic bottom plate, and the magnetic device that is rotationally symmetrical and whose center coincides with the center of the magnetic bottom plate is still symmetrical after the magnetic field and the magnetic field are superimposed. The magnetic field is beneficial to stabilize the gyro in the center and reduce the drift of the gyro in the magnetic device. In the rotary magnetic levitation device of the present invention, the magnetic device includes a plurality of magnetic columns arranged circumferentially around a center line of the magnetic bottom plate, the magnetic poles of the magnetic columns having the same polarity.

In the rotary magnetic levitation device according to the present invention, each of the magnetic columns is the same magnet.

In the rotary magnetic levitation device of the present invention, the magnetic column is composed of a plurality of identical permanent magnet layers, and the adjacent magnetic poles of the adjacent two permanent magnets have different polarities. With this configuration, the length of the magnetic column can be increased or decreased by increasing or decreasing the number of laminated permanent magnets, so that the stable range of the gyro can be adjusted.

In the rotary magnetic levitation device according to the present invention, the magnetic column is an electromagnet.

In the rotary magnetic levitation device of the present invention, the magnetic device is a ring-shaped permanent magnet.

In the rotary magnetic levitation device of the present invention, the annular permanent magnet is superposed by a plurality of small magnetic rings, and the adjacent magnetic poles of the two adjacent small magnetic rings have different polarities.

In the rotary magnetic levitation device according to the present invention, the magnetic bottom plate is an electromagnet.

In the rotary magnetic levitation device according to the present invention, the magnetic bottom plate is a permanent magnet that is uniformly magnetized. In the rotary magnetic levitation device of the present invention, a horizontal non-ferromagnetic electrical insulator carrier is disposed between the magnetic device and the magnetic bottom plate. The function of the pallet is to hold the gyro before the gyro reaches the magnetic levitation, so that the gyro can be rotated and positioned on the pallet, and the non-ferromagnetic pallet will not be magnetized by the magnetic field, thereby avoiding adverse effects on the gyro, and the electrical insulator material can be avoided. The gyro generates electromagnetic energy during the rotation process, causing loss of gyro energy. The pallet can be a glass plate, a plastic plate or a wood plate. The pallet can be fixed on the magnetic device.

In the rotary magnetic levitation device according to the present invention, an adjustment device for adjusting a distance between the magnetic bottom plate and the pallet is provided between the magnetic bottom plate and the pallet. The function of the adjusting device is to adjust the distance between the shortening plate and the magnetic bottom plate, so that the repulsion between the top and the magnetic bottom plate on the supporting plate is strengthened to hold the gyro in a magnetic suspension state.

The present invention provides a gyroscopic magnetic levitation method for realizing the above-described rotary magnetic levitation device. The method is as follows: rotating a magnetic gyro located in a magnetic device and on a pallet, and shortening the magnetic bottom plate and the pallet by the adjusting device The distance between the gyro and the magnetic bottom plate is equal to the torus The gravity of the snail.

In the gyroscopic magnetic levitation method of the present invention, before the gyro is rotated, the adjustment plate is placed at a position where the force of the magnetic bottom plate to the gyro is less than the gyro gravity, so that the gyro can be rotated on the pallet and stably positioned.

In the gyroscopic magnetic levitation method of the present invention, the magnetic field strength in the region enclosed by the magnetic device is adjusted while or before the distance between the magnetic bottom plate and the pallet is shortened.

In the gyroscopic magnetic levitation method of the present invention, adjusting the magnetic field strength in the area enclosed by the magnetic device includes increasing or shortening the length in the vertical direction of the magnetic device, or adjusting the magnetic field strength in the region surrounding the magnetic device, including radial increase or Reduce the size of the magnetic device. If the magnetic field in the space enclosed by the magnetic device is too weak, the gyro may drift outside the area enclosed by the magnetic device under the repulsive force of the magnetic bottom plate when the distance between the plate and the magnetic bottom plate is shortened. At this time, it is necessary to appropriately increase the length in the vertical direction of the magnetic device or to radially reduce the size of the magnetic device while shortening the distance between the magnetic bottom plate and the pallet. If the magnetic field in the space of the magnetic device is too strong, when the distance between the pallet and the magnetic base plate is shortened and the gyro is raised, the gyro will jump higher than the upper space of the magnetic device, and then fall down and be attracted by the magnetic force of the magnetic device. At this time, it is necessary to appropriately shorten the length in the vertical direction of the magnetic device or to radially enlarge the size of the magnetic device while shortening the distance between the magnetic bottom plate and the pallet.

The rotary magnetic levitation device embodying the invention has the following beneficial effects: the balance stability region of the magnetic levitation is wide, the magnetic field strength and the gyro weight accuracy requirements are low, the gyro rotation speed is limited, the resistance to external disturbance is strong, the stability is good, and the suspension time is greatly lengthened. Advantages; The gyro magnetic suspension method of the present invention has the advantages of simple operation, easy implementation and mastery. DRAWINGS

The present invention will be further described with reference to the accompanying drawings and embodiments in which:

1 is a schematic structural view of a conventional rotary magnetic levitation device;

2 is a schematic structural view of a first embodiment of a rotary magnetic levitation device of the present invention; 3 is a schematic view of the first embodiment of the rotary magnetic levitation device of the present invention when the gyro is not magnetically suspended; FIG. 4 is a schematic view showing the gyro in the magnetic suspension state in the first embodiment of the rotary magnetic levitation device of the present invention;

Figure 5 is a first structural view of a second embodiment of the rotary magnetic levitation device of the present invention; Figure 6 is a second structural view of the second embodiment of the rotary magnetic levitation device of the present invention. detailed description

Figures 2 through 4 illustrate one embodiment of the present invention.

As shown in FIG. 2, the rotary magnetic levitation device in this embodiment includes a magnetic bottom plate 11, a magnetic gyro 16, a magnetic device, a pallet 13, and an adjusting device 12. The magnetic bottom plate 11 is a horizontally placed uniformly magnetized disk-shaped permanent The magnet has a N pole facing downward and a S pole facing upward; the magnetic device is located directly above the magnetic bottom plate 11 and is composed of four magnetic columns 14; the pallet 13 is made of a non-ferromagnetic electric insulator material, and the magnetic column is placed horizontally. 14 and the magnetic bottom plate 11, the magnetic column 14 is composed of a plurality of identical small permanent magnets 15, and the adjacent magnetic poles of the two adjacent small magnets have different polarities, and the magnetic column is fixedly arranged around the center of the magnetic bottom plate 11 in a rotationally symmetric manner. The plate 13 is perpendicular to the pallet 13, and the N pole of the magnetic column 14 faces upward and the S pole faces downward. The magnetic gyro 16 is located in the area surrounded by the four magnetic columns 14 and is located above the pallet 13. The two poles of the magnetic gyro 16 are on their axes of rotation with the N pole facing up and the S pole facing down. The magnetic bottom plate 11 and the pallet 13 are connected by an adjusting device 12, which may be a mechanism such as a worm, and the distance between the adjusting plate 13 and the magnetic bottom plate 11 is realized by the lifting plate 13 or the magnetic bottom plate 11.

As shown in FIG. 3, the magnetic column 14 and the tray 13 are connected in a manner that a mounting slot 131 is disposed on the pallet 13, and the mounting slot 131 is radially disposed at a center of the magnetic bottom plate 11, and each mounting is performed. The width of the slot 131 is adapted to the diameter of the bottom surface of the magnetic column 14, so that the magnetic column 14 can be snapped onto the pallet 13 to realize the connection of the magnetic column 14 and the pallet 13. After the magnetic column 14 is snapped into the mounting slot on the pallet 13, the magnetic column 14 can slide in the mounting slot 131 to adjust the radial dimension of the magnetic device to adjust the magnetic field strength in the area enclosed by the magnetic device. In addition, the connection of the magnetic column 14 and the pallet 13 The method may further be that a small magnet or a ferromagnetic block corresponding to each magnetic column is disposed on a lower side of the pallet 13, and the magnetic column 14 located on the upper and lower sides of the pallet 13 and the small magnet or the ferromagnetic block attract each other to realize magnetic The column 14 is attached to the pallet 13. Since the magnetic column 14 is formed by splicing a plurality of small permanent magnets 15, the length of the magnetic column 14 can be controlled by controlling the number of small permanent magnets 15. As shown in FIGS. 2 and 3, the magnetic gyro 16 may be constituted by a rotating shaft and a turntable which passes through the turntable through the center of the turntable to form a centrally symmetrical rotating device, wherein the contact portion of the rotating shaft with the pallet 13 It may be a tapered structure to facilitate the rotation of the magnetic gyro 16, but it is understood that the magnetic gyro 16 may be constructed by other forms and structures as long as it is balanced and rotated.

The method for implementing the gyro female suspension in the rotating magnetic levitation device in this embodiment is as follows: First, the adjusting device 12 is adjusted to have a sufficient distance between the supporting plate 13 and the magnetic bottom plate 11, so that the force of the magnetic field on the gyro 16 upward is smaller than the gravity of the gyro 16 The top 16 is located above the pallet 13. As shown in FIG. 3, after the gyro is rotated, the distance between the pallet 13 and the magnetic bottom plate 11 is shortened by the adjusting device 12, so that the force of the magnetic field on the gyro 16 is gradually increased, and finally equal to the gravity of the gyro 16. In order to shorten the distance between the magnetic bottom plate and the pallet, the gyro does not drift out of the area surrounded by the magnetic device, and the magnetic field in the area surrounding the magnetic device can be adjusted while shortening the distance between the magnetic bottom plate and the pallet. strength. Adjusting the magnetic field strength in the area enclosed by the magnetic device should be adjusted according to the given gyro. If the magnetic field in the space enclosed by the magnetic device is too weak, the gyro may drift outside the area enclosed by the magnetic device under the repulsive force of the magnetic bottom plate when the distance between the supporting plate and the magnetic bottom plate is shortened. At this time, the strength of the magnetic field in the area surrounded by the magnetic device can be increased by appropriately increasing the length in the vertical direction of the magnetic device, that is, by increasing the number of small permanent magnets constituting the magnetic column, and also by arranging the magnetic columns constituting the magnetic device toward the center. Radial movement reduces the radial dimension of the magnetic device to enhance the strength of the magnetic field within the area enclosed by the magnetic device. If the magnetic field in the magnetic device space is too strong, when the distance between the pallet and the magnetic bottom plate is shortened and the gyro is raised, the gyro will jump higher than the upper space of the magnetic device, and then fall down and be attracted by the magnetic force of the magnetic device. At this time, by appropriately shortening the length in the vertical direction of the magnetic device, that is, reducing the number of small permanent magnets constituting the magnetic column or radially moving the center of the magnetic column constituting the magnetic device to amplify the magnetic device. Dimensions to reduce the strength of the magnetic field in the area enclosed by the magnetic device.

Since the rotating gyro 16 has a stable axis, it can be prevented from falling; and in the vertical direction, the force of the magnetic field on the gyro 16 is equal to the gravity, and the balance is reached, so that the gyro 16 can be separated from the pallet 13 to realize the rotary magnetic levitation. As shown in Figure 4. In the magnetic field of the magnetic column, the closer to the two poles of the magnetic column 14, the greater the magnetic field strength. When the gyro 16 is offset to either side in the region enclosed by the magnetic column, the N pole and the S pole of the gyro are respectively close to the N pole and the S pole of the magnetic column, so that the magnetic field magnetic field repulsion of the gyro is strengthened, resulting in a The force opposite to the gyro drift direction prevents the gyro from drifting outward, thereby limiting the gyro to a region surrounded by the magnetic column to achieve a long-term stable rotational magnetic levitation. Since the magnetic column 14 prevents the gyro 16 from drifting out, the magnetic field strength and the gyro weight accuracy requirement can be relatively reduced, and the operation of the gyro magnetic levitation is simple and easy to grasp.

In this embodiment, the number of gyros may be one or more. When there are multiple gyros, the gyros may be separated from each other due to the same-sex repelling, and will not collide, and each of them rotates the magnetic levitation.

In this embodiment, the magnetic bottom plate 11 may be an electromagnet; the magnetic column 14 may be an integral permanent magnet or an electromagnet, and the number of the magnetic columns 14 may be three or more, and the center of the magnetic bottom plate 11 is positive. A polygon or an approximate regular polygon arrangement.

In this embodiment, the N-pole and S-pole directions of the magnetic bottom plate 11, the magnetic device, and the gyro can be simultaneously flipped, and the N-pole of the magnetic bottom plate 11 faces downward with the S pole facing downward, and the N-pole of the gyro 16 and the magnetic column 14 face downward. S is facing up.

Figures 5 and 6 show a second embodiment of the invention.

In a structure as shown in FIG. 5, the rotary magnetic levitation device also includes a magnetic bottom plate 11, a magnetic gyro 16, a magnetic device 17, an adjusting device 12, and a pallet 13; the magnetic bottom plate 11 is a uniformly magnetized disk shaped horizontally The permanent magnet has a N pole facing downward and a S pole facing upward; the magnetic gyro 16 is located in a region formed by the magnetic device. The poles of the magnetic gyro 16 are on their axes of rotation with the N pole facing up and the S pole facing down. The magnetic bottom plate 11 and the magnetic device 17 are connected by an adjusting device 12, and the adjusting device 12 can be a mechanism such as a worm. The lifting plate 13 and the magnetic bottom are realized by lifting the magnetic device 17 or the magnetic bottom plate 11. The distance between the plates 11. As shown in FIG. 5, the magnetic gyro 16 also has a rotating shaft and a turntable. The rotating shaft passes through the turntable through the center of the turntable to form a centrally symmetrical rotating device, but it is understood that the magnetic gyro 16 can also pass other The form and structure are constructed as long as they are balanced and rotated.

This embodiment differs from the first embodiment in the magnetic device 17. In this embodiment, the magnetic device 17 includes a circular magnet. As shown in FIG. 5, the annular magnet may be a monolithic magnet or a plurality of circular small magnetic rings may be stacked. The adjacent magnetic poles of the two adjacent small magnetic rings have different polarities, so that the height of the circular magnet can be controlled by controlling the number of small magnetic rings, and the magnetic field strength of the space in the magnetic device 17 can be adjusted. The gyro can be stably suspended while shortening the distance between the pallet and the bottom plate.

In another configuration as shown in FIG. 6, the rotary magnetic levitation device also includes a magnetic bottom plate 11, a magnetic gyro 16, a magnetic device 18, an adjusting device 12, and a pallet 13; the magnetic bottom plate 11 is a horizontally placed uniformly magnetized disk The permanent magnet has N pole facing downward and S pole facing upward; the magnetic gyro 16 is located in a region formed by the magnetic device. The two poles of the magnetic gyro 16 are on their axes of rotation with the N pole facing upward and the S pole facing downward. The magnetic bottom plate 11 and the magnetic device 18 are connected by an adjusting device 12, which may be a mechanism such as a worm, and the distance between the adjusting plate 13 and the magnetic bottom plate 11 is realized by lifting the magnetic device 18 or the magnetic bottom plate 11. Similarly, as shown in FIG. 6, the magnetic gyro 16 also has a rotating shaft and a turntable. The rotating shaft passes through the turntable through the circular shape of the turntable to form a centrally symmetrical rotating device, but it is understood that the magnetic gyro 16 It can also be constructed by other forms and structures as long as it is balanced and rotated.

The embodiment shown in FIG. 6 differs from the embodiment shown in FIG. 5 in that the magnet of the magnetic device 18 shown in FIG. 6 is deformed, for example, a square magnetic ring or a rectangular magnetic ring. It is understood that the magnet of the magnetic device 18 can also be other regular polygonal structures.

The present invention has been described in terms of several specific embodiments, and it will be understood by those skilled in the art that In addition, various modifications may be made to the invention without departing from the scope of the invention. Therefore, the invention is not limited to the specific embodiments disclosed, but all the embodiments falling within the scope of the appended claims.

Claims

Slave

1 . A rotating magnetic levitation device comprising: a magnetic bottom plate with two magnetic poles respectively facing upward and downward, and a magnetic gyro having two magnetic poles on an axial center line, wherein a magnetic device with magnetic poles respectively facing upward and downward is disposed above the magnetic bottom plate, The magnetic device encloses a space for accommodating the gyro above the magnetic bottom plate. The magnetic poles of the magnetic device adjacent to the magnetic bottom plate have the same polarity, and the magnetic device has the same polarity as the magnetic pole of the gyro.

2. A rotating magnetic levitation device according to claim 1, wherein said magnetic bottom plate is a rotationally symmetrical magnet.

The rotary magnetic levitation device according to claim 2, wherein the magnetic device is a magnetic device that is rotationally symmetric about a center of the magnetic bottom plate.

4. The rotary magnetic levitation device according to claim 3, wherein the magnetic device comprises a plurality of magnetic columns arranged circumferentially around a center line of the magnetic bottom plate, the magnetic poles of the magnetic columns having the same polarity.

The rotary magnetic levitation device according to claim 4, wherein the magnetic column is composed of a plurality of identical permanent magnets, and the adjacent magnetic poles of the adjacent two permanent magnets have different polarities.

The rotary magnetic levitation device according to claim 4, wherein the magnetic column is an electromagnet.

The rotary magnetic levitation device according to claim 3, wherein the magnetic device is an annular permanent magnet.

8. The rotary magnetic levitation device according to claim 7, wherein the annular permanent magnet is formed by stacking a plurality of annular small magnetic rings.

The rotary magnetic levitation device according to any one of claims 1 to 8, wherein the magnetic bottom plate is an electromagnet or a uniformly magnetized permanent magnet.

The rotary magnetic levitation device according to any one of claims 1 to 8, characterized in that a horizontal non-ferromagnetic electrical insulator carrier is disposed between the magnetic device and the magnetic bottom plate.

11. The rotary magnetic levitation device according to claim 10, wherein the magnetic bottom plate An adjusting device for adjusting the distance between the magnetic bottom plate and the pallet is disposed between the pallet and the pallet.

12. A gyroscopic magnetic levitation method for implementing a rotary magnetic levitation device according to claim 11, wherein the method is a step of rotating a magnetic gyro located in the magnetic device and on the pallet, and shortening the magnetic bottom plate and the pallet by the adjusting device The distance between the gyro and the magnetic bottom plate is equal to the gravity of the gyro.

13. The gyroscopic magnetic levitation method according to claim 12, wherein the adjusting plate is placed at a position where the force of the magnetic bottom plate to the gyro is less than the gyro gravity before the gyro is rotated.

The gyroscopic magnetic levitation method according to claim 12 or 13, wherein the magnetic field in the area surrounded by the magnetic device is adjusted while or at the same time as shortening the distance between the magnetic bottom plate and the pallet

The gyroscopic magnetic levitation method according to claim 14, wherein the adjusting the magnetic field strength in the region enclosed by the magnetic device comprises increasing or shortening the length in the vertical direction of the magnetic device.

The gyroscopic magnetic levitation method according to claim 14, wherein the adjusting the magnetic field strength in the area enclosed by the magnetic device comprises increasing or decreasing the radial size of the magnetic device.