JPS5883552A - Rotary machine - Google Patents
Rotary machineInfo
- Publication number
- JPS5883552A JPS5883552A JP56182561A JP18256181A JPS5883552A JP S5883552 A JPS5883552 A JP S5883552A JP 56182561 A JP56182561 A JP 56182561A JP 18256181 A JP18256181 A JP 18256181A JP S5883552 A JPS5883552 A JP S5883552A
- Authority
- JP
- Japan
- Prior art keywords
- rotating
- fixed
- magnets
- same polarity
- rotating shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- 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
- F16C2380/00—Electrical apparatus
- F16C2380/26—Dynamo-electric machines or combinations therewith, e.g. electro-motors and generators
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は回転機に係り、特に回転軸が磁石の磁力によっ
て浮上する回転機に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rotating machine, and more particularly to a rotating machine in which a rotating shaft is levitated by the magnetic force of a magnet.
回転軸、回転子、固定子等を有している例えば電動機、
発電機等の回転機は、その回転機の効率を向上させる一
環として軸受摩擦損等の所謂機械損を低減することが検
討されている。この種機械損を低減するようにした従来
例が３１ｇ１図に示されているが、同図は磁石１．２の
磁力を利用して回転軸４を浮上させるようにした所謂磁
気軸受である。すなわち回転軸４の端部近傍には回転軸
４に支持された磁石２と、この磁石２と所定の空隙を介
して対向配置され、かつその対向部が磁石２の極と同じ
極を有するように形成された磁石１とが設けられている
。For example, an electric motor having a rotating shaft, a rotor, a stator, etc.
In order to improve the efficiency of rotating machines such as generators, it is being considered to reduce so-called mechanical losses such as bearing friction losses. A conventional example designed to reduce this type of mechanical loss is shown in Fig. 31g1, which is a so-called magnetic bearing in which the rotating shaft 4 is levitated using the magnetic force of the magnets 1.2. That is, near the end of the rotating shaft 4, there is a magnet 2 supported by the rotating shaft 4, and a magnet 2 is arranged opposite to this magnet 2 with a predetermined gap therebetween, and the opposing part has the same polarity as the pole of the magnet 2. A magnet 1 formed in is provided.
そしてこのように形成された回転機では、回転軸４は磁
石１．２の同極の磁力の反撥力によって浮上するが、同
図に示されているようにその対向する磁石１．２の同極
の磁極が回転軸４一対して平行に設けられているので、
回転軸４は軸方向への制動がなく軸方向へのずれが生じ
るようＫなる。In the rotating machine formed in this way, the rotating shaft 4 floats due to the repulsive force of the magnetic force of the same polarity of the magnet 1.2, but as shown in the figure, the rotating shaft 4 levitates due to the repulsive force of the magnetic force of the same polarity of the magnet 1.2, but as shown in the figure, Since the magnetic poles of the poles are provided parallel to the rotating shaft 4,
The rotating shaft 4 is set at K such that there is no braking in the axial direction and displacement in the axial direction occurs.
このため回転軸４０両端部には機械的なガイド３を設け
て軸方向へのずれを防止するようにして運転されていた
。従ってガイド３の機械的な接触による摩擦損が発生し
、折角の磁気軸受もその効果を十分く発揮することがで
きなかった。なお磁石１．２は夫々永久磁石が使用しで
ある。なおｔ九同図においてＮはＮ極（北極）、８は８
極（南極）である。For this reason, mechanical guides 3 are provided at both ends of the rotating shaft 40 to prevent the rotating shaft from shifting in the axial direction. Therefore, friction loss occurs due to the mechanical contact of the guide 3, and even the magnetic bearing, which has been developed for a long time, has not been able to exhibit its full effect. Note that the magnets 1 and 2 are permanent magnets. In addition, in the same figure, N is the N pole (North Pole), and 8 is 8.
It is the pole (Antarctica).
本発明は以上の点に鑑みなされたものであり、その目的
とするところは、機械損を低減して効率を向上した回転
機を提供するにある。The present invention has been made in view of the above points, and an object thereof is to provide a rotating machine that reduces mechanical loss and improves efficiency.
すなわち本発明は、端部近傍゛が回転ヨークによって保
持された回転軸と、この回転軸をその中心に有する回転
子と、この回転子と所定の間隙を介して設けられ、かつ
固定子コイルを装着した固定子と、この固定子を支持し
、かつこれら固定子及び回転子を債っているハウジング
と、このハウジング内の端部近傍で、かつ回転ヨークと
所定の空隙を介して対向配置された固定ヨークと、この
固定ヨークと回転ヨークとの対向部に夫々設けられ、か
つその対向部が夫々同極の磁極として対向するように形
定された固定及び回転磁石とからなり、固定及び回転磁
石が、その対向する同極の夫々の磁極が回転軸に斜行し
て形成されたものであることを特徴とするものであるっ
この発明において斜行とは、回転軸に対して直線部、曲
線部等をもって交わるようにしたものである。That is, the present invention provides a rotating shaft whose end portion is held by a rotating yoke, a rotor having the rotating shaft at its center, and a stator coil that is provided with a predetermined gap from the rotor. A mounted stator, a housing that supports this stator and connects these stators and rotors, and are arranged near an end in the housing and facing the rotating yoke with a predetermined gap interposed therebetween. It consists of a fixed yoke, and fixed and rotating magnets, which are provided at opposing parts of the fixed yoke and the rotating yoke, and whose opposing parts are configured to face each other as magnetic poles of the same polarity. The magnet is characterized in that the opposite magnetic poles of the same polarity are formed obliquely to the axis of rotation. , so that they intersect at curved portions, etc.
以下、図示した実施例に基づいて本発明を説明する。第
２図には本発明の一実施例が示されている。なお従来と
同じ部品には同じ符号を付したので説明は省略する。本
実施例では回転機を、端部近傍が回転ヨーク５によって
保持された回転軸４と、この回転軸４をその中心に有す
る回転子６と、この回転子６と所定の間隙を介して設け
られ、かつ固定子コイル７を装着した固定子８と、この
固定子８を支持し、かつこれら固定子８および回転子６
を覆っているハウジング９と、仁のハウジング９内の端
部近傍で、かつ回転ヨーク５と所定の空隙を介して対向
配置された固定ヨーク１ｏと、この固定ヨーク１ｏと回
転ヨーク５との対向部に夫々設けられ、かつその対向部
が夫々同極の８極として対向するように形成された固定
および回転磁石１１．１２とから構成し、固定および回
転磁石Ｉ Ｌ、１２が、その対向する同極の夫々の磁極
が回転軸４に斜行して形成、されるようにした。すなわ
ち回転軸４を磁気軸受によって浮上、回転させるように
したものであるが、回転軸４が従来のように軸方向にず
れないように対向する固定および回転磁石１１．１２の
夫々の同極の磁極が、同図に示されているように回転軸
４に対して直線部をもって斜行するようにした。そして
固定および回転磁石１１．１２は共に永久磁石で形成し
た。The present invention will be explained below based on the illustrated embodiments. FIG. 2 shows an embodiment of the invention. Note that parts that are the same as those in the conventional model are given the same reference numerals, and therefore their explanations will be omitted. In this embodiment, a rotating machine is provided with a rotating shaft 4 whose end portion is held by a rotating yoke 5, a rotor 6 having the rotating shaft 4 at its center, and a predetermined gap between the rotor 6 and the rotating shaft 4. and a stator 8 which supports the stator 8 and has the stator coil 7 attached thereto, and which supports the stator 8 and the rotor 6.
a fixed yoke 1o disposed near an end inside the inner housing 9 and facing the rotating yoke 5 with a predetermined gap therebetween; The fixed and rotating magnets 11 and 12 are provided in the respective parts, and the opposing parts thereof are formed to face each other as eight poles of the same polarity. The respective magnetic poles of the same polarity are formed obliquely to the rotating shaft 4. That is, the rotary shaft 4 is levitated and rotated by a magnetic bearing, but the same polarity of the fixed and rotating magnets 11 and 12 facing each other is used to prevent the rotary shaft 4 from shifting in the axial direction as in the conventional case. The magnetic poles were made to move obliquely with respect to the rotating shaft 4 with a straight portion as shown in the figure. The fixed and rotating magnets 11 and 12 were both made of permanent magnets.
このように対向する同極の磁極を回転軸４に対して設け
るようにしたので、回転軸４Ｆｉ従来のようにガイドを
設けなくても軸方向への移動が防止され、安定に゛浮上
、回転するようになって、摩擦による機械損が低減する
ようになり、回転機の効率を向上させることができる。In this way, since the opposite magnetic poles of the same polarity are provided on the rotating shaft 4, the rotating shaft 4Fi can be prevented from moving in the axial direction without having to provide a guide as in the conventional case, allowing stable levitation and rotation. As a result, mechanical loss due to friction is reduced, and the efficiency of the rotating machine can be improved.
第３図には本発明の他の実施例が示されている。Another embodiment of the invention is shown in FIG.
本実施例では固定および回転磁石１１．１２が、その対
向する同極の夫々の磁極が回転軸４に対して彎曲部をも
りて斜行するように形成されたものである。そして固定
および回転磁石１１．１２は共に永久磁石で形成した。In this embodiment, the fixed and rotating magnets 11, 12 are formed such that their opposing magnetic poles of the same polarity extend obliquely with respect to the rotating shaft 4 with a curved portion. The fixed and rotating magnets 11 and 12 were both made of permanent magnets.
この場合にも前述のものと同様な作用効果を奏すること
ができる。In this case as well, the same effects as those described above can be achieved.
第４図には本発明の更に他の実施例が示されている。本
実施例では前述の実施例（第２図参照）の場合と同様に
対向する同極の夫々の磁極が回転軸４に対して直線部を
もって斜行されるようにしたが、固定磁石１１ａを電磁
石で形成した。すなわち固定ヨーク１０ａに絶縁導体を
巻回したソレノイド１３を形成し、このソレノイド１３
に電流を流して固定ヨーク１０ａを電磁石とする。この
場合にはソレノイド１３に流す電流の大きさを変えるこ
とによって、回転磁石１２との閾に発生する反撥力の大
きさを変えることができる。FIG. 4 shows yet another embodiment of the invention. In this embodiment, as in the previous embodiment (see FIG. 2), the opposing magnetic poles of the same polarity are moved obliquely with respect to the rotating shaft 4 with straight portions, but the fixed magnet 11a is Formed with electromagnets. That is, a solenoid 13 is formed by winding an insulated conductor around the fixed yoke 10a, and this solenoid 13
A current is applied to the fixed yoke 10a to make it an electromagnet. In this case, by changing the magnitude of the current flowing through the solenoid 13, the magnitude of the repulsive force generated at the threshold with the rotating magnet 12 can be varied.
Ｘ４５図には本発明の更に他の実施例が示されている。A still further embodiment of the present invention is shown in Figure X45.
本実施例では前述の実施例（第６図参照）の場合と同様
に対向する同極の夫々の磁極が回転軸４に対して彎曲部
をもって斜行されるようにしたが、固定磁石１１ａを電
磁石で形成した。すなわち固定ヨークｔｅａに絶縁導体
を巻回したソレノイド１！Ｉを形成し、このソレノイド
１３に電流を流して固定ヨーク１０ａを電磁石とする。In this embodiment, as in the previous embodiment (see FIG. 6), the opposing magnetic poles of the same polarity are moved obliquely with respect to the rotating shaft 4 with a curved portion, but the fixed magnet 11a is Formed with electromagnets. In other words, solenoid 1 with an insulated conductor wound around a fixed yoke tea! A current is applied to the solenoid 13 to make the fixed yoke 10a an electromagnet.
この場合にも前述のものと同様な作用効果を奏すること
ができる。In this case as well, the same effects as those described above can be achieved.
なお本実施例では固定、回転磁石１１．１２が共に永久
磁石、回転磁石１２が永久磁石で固定磁石ｉ１ａが１磁
石の場合について説明したが、固定、回転磁石が共に電
磁石の場合にも同様な作用効果を奏することができるの
は言を俟だない。In this embodiment, a case has been described in which the fixed and rotating magnets 11 and 12 are both permanent magnets, the rotating magnet 12 is a permanent magnet, and the fixed magnet i1a is one magnet, but the same applies when both the fixed and rotating magnets are electromagnets. It goes without saying that it can be effective.
上述のように本発明は、固定および回転磁石がその対向
する同極の夫々の磁極が回転軸に斜行して形成されたの
で、回転軸は機械的なガイドがなくても軸方向へのずれ
がなく安定して浮上、回転するようになって、回転軸の
摩擦による機械損が低減するようになり、機械損を低減
して効率を向上した回転機を得ることができる。As described above, in the present invention, the fixed and rotating magnets are formed so that the opposite magnetic poles of the same polarity are oblique to the rotating shaft, so that the rotating shaft can be moved in the axial direction without a mechanical guide. It floats and rotates stably without deviation, and mechanical loss due to friction of the rotating shaft is reduced, making it possible to obtain a rotating machine with reduced mechanical loss and improved efficiency.
第１図は従来の回転機の軸受要部の縦断１１１１面図、
ｉ＄Ｊ２図は本発明の回転機・・′）一実施例の縦断側
面図、第３図は本発明の回転機の他の実施列の縦断側面
図、第４図は本発明の回転機の更に・池の実施例の軸受
要部の縦断側面図、Ｉｓ５図は本発明の回転機゛。
の更に他の実施例の軸受要部の縦断側面図である。
４・・・回転軸、５・・・回転ヨーク、６・・・回転子
、７・・・固定子コイル、８−・・固定子、９・・・ハ
ウジング、１０．１０ａ・・・固定ヨーク、１１．１１
ａ・・・固定磁石、１２・・・回転磁石、１３−・・ソ
レノイド。
・・・・特許比−入の名称 日立工機株式会社第１図
第２［￥１
オゴ図Figure 1 is a vertical 1111 side view of the main parts of a bearing in a conventional rotating machine.
i$J2 Figure is a longitudinal sectional side view of one embodiment of the rotating machine of the present invention, Fig. 3 is a longitudinal sectional side view of another embodiment of the rotating machine of the present invention, and Fig. 4 is the rotating machine of the present invention. Furthermore, Figure Is5, which is a longitudinal cross-sectional side view of the main parts of the bearing of the embodiment, shows the rotating machine of the present invention. FIG. 7 is a vertical cross-sectional side view of a main part of a bearing according to still another embodiment of the present invention. 4... Rotating shaft, 5... Rotating yoke, 6... Rotor, 7... Stator coil, 8-... Stator, 9... Housing, 10.10a... Fixed yoke , 11.11
a... Fixed magnet, 12... Rotating magnet, 13-... Solenoid. ...Name of patent ratio-in Hitachi Koki Co., Ltd. Figure 1 Figure 2 [¥1 Ogo diagram
Claims (1)
、この回転軸をその中心に有する回転子と、この回転子
と所定の間隙を介して設けられ、かつ固定子コイルを装
着した固定子と、この固定子を支持し、かつこれら固定
子及び回転子を覆っているハウジングと、このハウ″ジ
ング内の４部近傍で、かり前記回転ヨークと所定の空隙
を介して対向配置された固定車−りと、この固定ヨーク
と前記回転ヨークとの対向ｔＫ夫々設けられ、かつその
対向部が夫々同極の磁極として対向するように形成され
た固定及び回転磁石とからな抄、前記固定及び回転磁石
が、その対向する前記同極の夫々の磁極が前記回転軸に
斜行して形成されたものであることを％徴とする回転機
。 ２、前記固定及び回転磁石が、その対向する同極 。 の夫々の磁極が前記回転軸に対して直線部をもって斜行
している特許請求の範囲第１項記載の回転機。 五 前記固定及び回転磁石が、その対向する同極の夫々
の磁極が前記回転軸に対して彎曲部をもって斜行してい
る特許請求の範囲第１項記載の回転機。 東 前記固定及び回転磁石が、永久磁石である特許請求
の範囲第１項記載の回転機。 ５ 前記固定磁石が、電磁石である特許請求の範囲第１
項記載の回転機。[Claims] t A rotating shaft whose end portion is held by a rotating yoke, a rotor having the rotating shaft at its center, and a stator coil provided with a predetermined gap from the rotor. A stator equipped with a stator, a housing supporting the stator and covering the stator and rotor, and a rotary yoke located near the four parts in the housing through a predetermined gap with the rotating yoke. It consists of fixed wheels disposed oppositely to each other, and fixed and rotating magnets, each of which is provided opposite to the fixed yoke and the rotating yoke, and whose opposing portions are formed to face each other as magnetic poles of the same polarity. 2. A rotating machine characterized in that the fixed and rotating magnets are formed such that each of the opposing magnetic poles of the same polarity is formed obliquely to the rotating shaft. 2. The fixed and rotating magnet The rotating machine according to claim 1, wherein each of the magnetic poles of the fixed and rotating magnets has the same polarity that faces the rotating shaft. The rotating machine according to claim 1, wherein the respective magnetic poles of the same polarity are inclined with respect to the rotating shaft with a curved portion.East: The rotating machine according to claim 1, wherein the fixed and rotating magnets are permanent magnets. The rotating machine according to claim 1. 5. Claim 1, wherein the fixed magnet is an electromagnet.
Rotating machine described in section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56182561A JPS5883552A (en) | 1981-11-12 | 1981-11-12 | Rotary machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56182561A JPS5883552A (en) | 1981-11-12 | 1981-11-12 | Rotary machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5883552A true JPS5883552A (en) | 1983-05-19 |
Family
ID=16120417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56182561A Pending JPS5883552A (en) | 1981-11-12 | 1981-11-12 | Rotary machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5883552A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62193554A (en) * | 1986-02-18 | 1987-08-25 | Joji Kusuyama | Electric motor |
| JPH02125107A (en) * | 1988-11-04 | 1990-05-14 | Nippon Telegr & Teleph Corp <Ntt> | Turning device |
| EP0392500A2 (en) * | 1989-04-12 | 1990-10-17 | Ebara Corporation | Spindle motor |
| JPH0392597U (en) * | 1990-01-09 | 1991-09-20 | ||
| WO1992016762A1 (en) * | 1991-03-15 | 1992-10-01 | Koyo Seiko Co., Ltd. | Superconductive bearing device |
| US5739606A (en) * | 1991-03-15 | 1998-04-14 | Koyo Seiko Co., Ltd. | Superconducting bearing device |
| WO2004022988A1 (en) * | 2002-09-03 | 2004-03-18 | Seiko Epson Corporation | Magnetic bearing device |
| EP1817505A1 (en) * | 2004-08-25 | 2007-08-15 | Norpropeller AS | Bearing with permanent magnetic elements |
| US7315100B2 (en) | 2004-02-20 | 2008-01-01 | Delta Electronics, Inc. | Motor and magnetic bearing assembly thereof |
| DE10007428B4 (en) * | 1999-12-10 | 2008-03-20 | Delta Electronics, Inc. | Connection element for use in fence, has end pieces of cross bars of grid mats provided on both sides of tightening elements in groove-like recess, where cross bars terminate on end-longitudinal bar and lie in node points |
| WO2011158382A1 (en) * | 2010-06-16 | 2011-12-22 | Ikeda Kazuhiro | Magnetic shaft bearing assembly and system incorporating same |
| CN104675858A (en) * | 2015-02-04 | 2015-06-03 | 中国船舶重工集团公司第七0七研究所 | Air-magnet hybrid hemispherical bearing gyro motor |
| CN109038991A (en) * | 2018-09-12 | 2018-12-18 | 北京航空航天大学 | A kind of 36/4 structure high-speed magneto |
-
1981
- 1981-11-12 JP JP56182561A patent/JPS5883552A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62193554A (en) * | 1986-02-18 | 1987-08-25 | Joji Kusuyama | Electric motor |
| JPH02125107A (en) * | 1988-11-04 | 1990-05-14 | Nippon Telegr & Teleph Corp <Ntt> | Turning device |
| EP0392500A2 (en) * | 1989-04-12 | 1990-10-17 | Ebara Corporation | Spindle motor |
| JPH0392597U (en) * | 1990-01-09 | 1991-09-20 | ||
| WO1992016762A1 (en) * | 1991-03-15 | 1992-10-01 | Koyo Seiko Co., Ltd. | Superconductive bearing device |
| US5739606A (en) * | 1991-03-15 | 1998-04-14 | Koyo Seiko Co., Ltd. | Superconducting bearing device |
| US5801469A (en) * | 1991-03-15 | 1998-09-01 | Koyo Seiko Co., Ltd | Superconducting bearing device |
| DE10007428B8 (en) * | 1999-12-10 | 2008-06-26 | Delta Electronics, Inc. | magnetic bearings |
| DE10007428B4 (en) * | 1999-12-10 | 2008-03-20 | Delta Electronics, Inc. | Connection element for use in fence, has end pieces of cross bars of grid mats provided on both sides of tightening elements in groove-like recess, where cross bars terminate on end-longitudinal bar and lie in node points |
| WO2004022988A1 (en) * | 2002-09-03 | 2004-03-18 | Seiko Epson Corporation | Magnetic bearing device |
| US7315100B2 (en) | 2004-02-20 | 2008-01-01 | Delta Electronics, Inc. | Motor and magnetic bearing assembly thereof |
| EP1817505A1 (en) * | 2004-08-25 | 2007-08-15 | Norpropeller AS | Bearing with permanent magnetic elements |
| EP1817505A4 (en) * | 2004-08-25 | 2012-03-07 | Norpropeller As | Bearing with permanent magnetic elements |
| WO2011158382A1 (en) * | 2010-06-16 | 2011-12-22 | Ikeda Kazuhiro | Magnetic shaft bearing assembly and system incorporating same |
| CN104675858A (en) * | 2015-02-04 | 2015-06-03 | 中国船舶重工集团公司第七0七研究所 | Air-magnet hybrid hemispherical bearing gyro motor |
| CN109038991A (en) * | 2018-09-12 | 2018-12-18 | 北京航空航天大学 | A kind of 36/4 structure high-speed magneto |
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