JPH03285556A - Magnetic gear unit - Google Patents
Magnetic gear unitInfo
- Publication number
- JPH03285556A JPH03285556A JP8331290A JP8331290A JPH03285556A JP H03285556 A JPH03285556 A JP H03285556A JP 8331290 A JP8331290 A JP 8331290A JP 8331290 A JP8331290 A JP 8331290A JP H03285556 A JPH03285556 A JP H03285556A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- gear
- gears
- teeth
- opposing
- 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
- 230000004907 flux Effects 0.000 claims abstract description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
機械的結合にて動力を伝達する歯車は、歯面同士の直接
接触による噛み合いのため、摩擦や振動および騒音はさ
けられず、また潤滑を必要とする等の問題点があるとこ
ろから、磁気的結合によって動力を伝達する磁気歯車が
提案されている。[Detailed Description of the Invention] [Field of Industrial Application] Gears that transmit power through mechanical coupling engage with each other through direct contact between tooth surfaces, so friction, vibration, and noise cannot be avoided, and they also require lubrication. Due to problems such as the need for magnetic gears, magnetic gears that transmit power through magnetic coupling have been proposed.
しかしながら、この提案に係る磁気歯車は１円筒外周に
磁石を取り付けた吸引型構造や歯車形状の歯面に磁石を
取り付けた反発型構造のものが一般的で、前者にあって
は、磁石が１対１の対応構造のために力が弱くて同期は
ずれ（脱出）を簡単に起こし、また心間距離も大きくな
って大型化するという問題点があり、後者にあっては、
噛み合い時の空隙が種々変化して脈動し、また過負荷時
には歯同士が直接接触するという問題点があった。However, the magnetic gears related to this proposal generally have an attraction type structure in which a magnet is attached to the outer periphery of one cylinder, or a repulsion type structure in which a magnet is attached to the tooth surface of the gear. Due to the one-to-one correspondence structure, there are problems in that the force is weak and synchronization (escape) easily occurs, and the center-to-center distance also increases, resulting in larger size.
There were problems in that the gap during meshing varied and pulsated, and the teeth came into direct contact with each other during overload.
そこで、これらの問題点を解決するため１本発明者は先
に、所要の空隙を有して平行に、かつ回転自在に配設さ
れた二つの磁気歯車を有し、該二つの磁気歯車は非磁性
材から成る円板の夫々の対向する局面部に永久磁石等の
インボリュート磁気歯がＮ極、Ｓ極と交互に異極配列さ
れて成る磁気歯車装置を発明し、特許出願（特願平２−
４３０２号）したが１本発明は、これの更に改良を目的
としてなされたものである。Therefore, in order to solve these problems, the present inventor first developed two magnetic gears that are rotatably arranged in parallel with a required gap, and the two magnetic gears are He invented a magnetic gear device in which involute magnetic teeth such as permanent magnets are arranged in different polarities alternately with N and S poles on opposing surfaces of a disc made of non-magnetic material, and filed a patent application (patent application). 2-
No. 4302) However, the present invention has been made with the aim of further improving this.
すなわち、特願平２−４３０２号に係る磁気歯車装置は
、二つの磁気歯車における磁気歯の形状をインボリュー
ト曲線とし、かつ該磁気歯を非磁性材から成る円板の周
面部に交互に異極配列しているため、その製作が容易で
なく、コスト的に高くなるという問題点があった。That is, in the magnetic gear device according to Japanese Patent Application No. 2-4302, the shape of the magnetic teeth of two magnetic gears is an involute curve, and the magnetic teeth are arranged alternately with different polarities on the peripheral surface of a disk made of a non-magnetic material. Since they are arranged in an array, they are not easy to manufacture and have a problem in that they are expensive.
本発明は、この製作上の問題点を解決するために改良が
なされたもので、その目的とするところは、製作が容易
で、経済的な磁気歯車装置を提供することにある。The present invention has been improved to solve this manufacturing problem, and its purpose is to provide an economical magnetic gear device that is easy to manufacture.
この目的のため、本発明は、所要の空隙を有して平行に
、かつ回転可能に配設された二つの磁気歯車を有し、該
二つの磁気歯車は磁性体円板の夫々の対向する周面部に
、磁化された永久磁石等の円弧状磁気歯がＮ極、Ｓ極と
交互に異極配列されて構成され、該対向せる磁気歯間に
生じる磁束によって二つの磁気歯車間に所望の回転比で
動力が伝達される構成を特徴とするものである。For this purpose, the present invention has two magnetic gears rotatably arranged parallel to each other with a required air gap, the two magnetic gears being arranged on opposite sides of the magnetic disc. On the peripheral surface, arc-shaped magnetic teeth such as magnetized permanent magnets are arranged in different polarity alternately with N pole and S pole, and the magnetic flux generated between the opposing magnetic teeth creates a desired gap between the two magnetic gears. It is characterized by a configuration in which power is transmitted at a rotational ratio.
以下、本発明の実施例についてその作用と共に図面を参
照して説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described together with their functions with reference to the drawings.
第１図は本発明に係る磁気歯車装置の一例での動作原理
図、第２図は同上ｎ−ｎ線に沿った断面図で、これら図
において二つの磁気歯車１．１０は所要の空隙２０を有
して平行に、かつ回転可能として配設されている。FIG. 1 is a diagram of the operating principle of an example of the magnetic gear device according to the present invention, and FIG. 2 is a cross-sectional view taken along the line nn of the same as above. are arranged parallel to each other and rotatable.
一方の磁気歯車１は、磁性体大円板２の片面外周縁全体
に、磁化された永久磁石等の円弧状歯形の磁気歯３が等
間隔を有してＮ極、Ｓ極と交互に異極配列されると共に
、その他面中心部位には歯車軸４が設けられ、該磁気歯
車１は軸受５を介して回転可能となっている。On the other hand, the magnetic gear 1 has magnetic teeth 3 in the shape of an arc, such as a magnetized permanent magnet, arranged at equal intervals on the entire outer periphery of one side of a large magnetic disk 2, and alternately having N poles and S poles. In addition to the polar arrangement, a gear shaft 4 is provided at the center of the other surface, and the magnetic gear 1 is rotatable via a bearing 5.
大きい磁気歯車１と所要の空隙２０を有して平行に配設
された他方の磁気歯車１０は、磁性体小円板１１におけ
る大円板２との対向する片面外周縁全体に、磁化された
永久磁石等の円弧状歯形の磁気歯１２が等間隔を有して
Ｎ極、Ｓ極と交互に異極配列されると共に、その他面中
心部位には歯車軸１３が設けられ、該磁気歯車１０は軸
受１４を介して回転可能となっている。The other magnetic gear 10, which is arranged parallel to the large magnetic gear 1 with a required gap 20, is magnetized on the entire outer periphery of one side of the small magnetic disk 11 facing the large disk 2. Magnetic teeth 12 having an arcuate tooth shape, such as permanent magnets, are arranged at equal intervals and alternately have N poles and S poles, and a gear shaft 13 is provided at the center of the other surface, and the magnetic gear 10 is rotatable via a bearing 14.
なお、磁気歯３．１２は電磁石であってもよく、また第
１図に示す内接噛み合い型の外に、磁気歯車１．１０の
心間距離を第３図に示す如くに変えて、外接噛み合い型
とすることも可能である。The magnetic gear 3.12 may be an electromagnet, and in addition to the internally meshing type shown in FIG. It is also possible to use an interlocking type.
第１図において、磁気歯３，１２は大円板２、小円板１
１との一体形成により等間隔を有して異極配列されてい
るが、磁気歯３．１２の夫々の隣接との間隔図示は、図
面の表示を簡潔する目的で一部分のみ示し、他は省略し
てあり、第３図においては全てを省略しである。In FIG. 1, the magnetic teeth 3 and 12 are large disk 2 and small disk 1.
1, the magnetic teeth 3 and 12 are arranged in different polarities at equal intervals, but the distances between the magnetic teeth 3 and 12 are shown in part for the purpose of simplifying the drawing, and the rest are omitted. 3, and all are omitted in FIG.
以上の構成において、二つの磁気歯車ｌ、１０のいずれ
か一方の磁気歯車を駆動源（図示しない）によって第１
図に示す実線矢印イ方向に回転させると、各歯車の磁気
歯３．１２間に生じる磁気力が第１図に示す点線矢印ａ
、ｂ、ｃ、ｃ１．ｅ方向に作用して、平行に対向せる他
方の磁気歯車は第１図および第３図に示す実線矢印イ′
方向に追従して回転し、二つの磁気歯車１．１０間に非
接触で１：ｎ或は１：五 の定速比の回転力や動力が伝
達される。In the above configuration, one of the two magnetic gears 1 and 10 is driven by a drive source (not shown) to the first magnetic gear.
When rotated in the direction of the solid line arrow a shown in the figure, the magnetic force generated between the magnetic teeth 3 and 12 of each gear is
, b, c, c1. The other magnetic gear acting in the e direction and facing in parallel is shown by the solid line arrow i' in FIGS. 1 and 3.
The rotating force and power are transmitted between the two magnetic gears 1.10 without contact at a constant speed ratio of 1:n or 1:5.
なお、第１図に基づく動作説明は、二つの磁気歯車１．
１０を矢印イ方向（時計方向）に回転させた場合である
が、これを反時計方向に回転させることも可能であり、
また小さい磁気歯車１０を二つ以上として多軸伝達構造
とすることも可能である。The operation description based on FIG. 1 is based on two magnetic gears 1.
10 is rotated in the direction of arrow A (clockwise), but it is also possible to rotate it counterclockwise,
It is also possible to use two or more small magnetic gears 10 to form a multi-axis transmission structure.
本発明に係る磁気歯車装置は種々の変形が可能であり、
例えば特に図示しないが、負荷特性を増大させるために
、小さい磁気歯車１０の磁気歯１２の歯形を可変式構造
とすることも可能である。The magnetic gear device according to the present invention can be modified in various ways,
For example, although not specifically shown, the tooth profile of the magnetic teeth 12 of the small magnetic gear 10 can be made variable in order to increase the load characteristics.
しかして、本発明によれば、二つの磁気歯車は、夫々が
磁性体円板の対向する周面部に、永久磁石等の磁化され
た円弧状磁気歯が異極配列されて構成されているから、
本発明者が先に発明し、特許出願したインボリュート曲
線型磁気歯車装置に比して、その製作が容易にして、か
つ廉価になし得、その上インボリュート曲線型磁気歯車
装置と同等の効果を有するものである。According to the present invention, the two magnetic gears each include magnetized arc-shaped magnetic teeth such as permanent magnets arranged in different polarities on the opposing circumferential surfaces of magnetic disks. ,
Compared to the involute curve type magnetic gear device that the present inventor previously invented and applied for a patent, it is easier and cheaper to manufacture, and has the same effect as the involute curve type magnetic gear device. It is something.
図面は本発明の実施例を示したもので、第１図は動作原
理図で、内接噛み合い型を示す、第２図は同上■−■線
に沿った断面図、第３図は二つの磁気歯車の心間距離を
かえた状態の説明図である。
１・・・磁気歯車（大）
２・・・磁性体大円板
３・・・円弧状磁気歯
４・・・歯車軸
１０・・・磁気歯車（小）
１１・・・磁性体小円板
１３・・・円弧状磁気歯
１４・・・歯車軸
２０・・・空隙The drawings show an embodiment of the present invention. Fig. 1 shows the principle of operation and shows an internal meshing type, Fig. 2 is a sectional view taken along the line ■-■, and Fig. 3 shows two FIG. 3 is an explanatory diagram of a state in which the center-to-center distance of magnetic gears is changed. 1...Magnetic gear (large) 2...Magnetic large disk 3...Circular magnetic tooth 4...Gear shaft 10...Magnetic gear (small) 11...Magnetic small disk 13...Circular magnetic tooth 14...Gear shaft 20...Gap
Claims (1)
れた二つの磁気歯車を有し、該二つの磁気歯車は磁性体
円板の夫々の対向する周面部に、磁化された円弧状磁気
歯がＮ極、Ｓ極と交互に異極配列されて構成され、該対
向せる磁気歯間に生じる磁束によって二つの磁気歯車間
に所望の回転比で動力が伝達される構成を特徴とする磁
気歯車装置。1. It has two magnetic gears that are rotatably arranged in parallel with a required gap, and the two magnetic gears are magnetized on the opposing peripheral surfaces of the magnetic disc. It is characterized by a configuration in which arc-shaped magnetic teeth are arranged in different polarities alternately with N pole and S pole, and power is transmitted between two magnetic gears at a desired rotation ratio by the magnetic flux generated between the opposing magnetic teeth. Magnetic gear device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8331290A JPH03285556A (en) | 1990-03-30 | 1990-03-30 | Magnetic gear unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8331290A JPH03285556A (en) | 1990-03-30 | 1990-03-30 | Magnetic gear unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03285556A true JPH03285556A (en) | 1991-12-16 |
Family
ID=13798903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8331290A Pending JPH03285556A (en) | 1990-03-30 | 1990-03-30 | Magnetic gear unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03285556A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09257116A (en) * | 1996-03-25 | 1997-09-30 | Ckd Corp | Drive transmission means |
| JP2008535462A (en) * | 2005-04-08 | 2008-08-28 | アンドリュー ボイド フレンチ | Magnetic drive |
| KR100981925B1 (en) * | 2008-06-04 | 2010-09-13 | 주식회사 천인 | Power Transmission Device |
| JP2010240186A (en) * | 2009-04-07 | 2010-10-28 | Toshiba Corp | X-ray ct apparatus |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6348386B2 (en) * | 1980-03-26 | 1988-09-28 | Fuiritsupusu Furuuiranpenfuaburiken Nv |
-
1990
- 1990-03-30 JP JP8331290A patent/JPH03285556A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6348386B2 (en) * | 1980-03-26 | 1988-09-28 | Fuiritsupusu Furuuiranpenfuaburiken Nv |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09257116A (en) * | 1996-03-25 | 1997-09-30 | Ckd Corp | Drive transmission means |
| JP2008535462A (en) * | 2005-04-08 | 2008-08-28 | アンドリュー ボイド フレンチ | Magnetic drive |
| KR100981925B1 (en) * | 2008-06-04 | 2010-09-13 | 주식회사 천인 | Power Transmission Device |
| JP2010240186A (en) * | 2009-04-07 | 2010-10-28 | Toshiba Corp | X-ray ct apparatus |
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