JPH0419989Y2 - - Google Patents
Info
- Publication number
- JPH0419989Y2 JPH0419989Y2 JP2336087U JP2336087U JPH0419989Y2 JP H0419989 Y2 JPH0419989 Y2 JP H0419989Y2 JP 2336087 U JP2336087 U JP 2336087U JP 2336087 U JP2336087 U JP 2336087U JP H0419989 Y2 JPH0419989 Y2 JP H0419989Y2
- Authority
- JP
- Japan
- Prior art keywords
- inductors
- magnetic drum
- facing
- magnetic
- inductor
- 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.)
- Expired
Links
- 230000005284 excitation Effects 0.000 claims description 5
- 239000004020 conductor Substances 0.000 claims description 3
- 239000000696 magnetic material Substances 0.000 description 4
- 210000000078 claw Anatomy 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000004907 flux Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Landscapes
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
この考案は、インダクタータイプの渦電流接手
に関する。[Detailed Description of the Invention] (Industrial Application Field) This invention relates to an inductor type eddy current coupling.
（従来の技術と問題点）
インダクタータイプの渦電流接手は、磁性ドラ
ムに対向して周方向に多数の突極をくし歯状に配
置した誘導子を、前記磁性ドラムと径方向空隙で
対向する場合は軸方向に、また、軸方向空隙で対
向する場合は径方向に２組並べ、一方の誘導子か
ら磁性ドラムを介して他方の誘導子へ磁路を構成
するため、構造が大形になる欠点があつた。(Conventional technology and problems) In an inductor type eddy current joint, an inductor in which a large number of salient poles are arranged in a comb-like shape in the circumferential direction facing a magnetic drum is opposed to the magnetic drum with a radial gap. The structure is large because two sets of inductors are arranged in the axial direction when the inductor is used, and radially when the inductor faces each other with an axial gap, and a magnetic path is formed from one inductor to the other inductor via a magnetic drum. It had some drawbacks.
なお、クロータイプの渦電流接手においては、
ヨークの両側から交互に噛み合わせるようにして
周方向に多数のクローを設け、その外周に磁性ド
ラムを対向させており、磁路が磁性ドラムの周方
向に分割されて同じ向きに形成されるため磁性ド
ラムの軸方向両端縁部に短絡環を設けてインピー
ダンスを低下させ、トルク特性を向上させるよう
にしたものが実公昭38−7716号公報に示されてい
るが、インダクタータイプでは、磁路が周方向に
対して直角の向きに形成され、磁性ドラムの両縁
に短絡環を設けてもトルク特性向上の効果が得ら
れなかつた。 In addition, for claw type eddy current joints,
A large number of claws are provided in the circumferential direction so as to engage alternately from both sides of the yoke, and a magnetic drum is placed opposite to the outer periphery of the claws.The magnetic path is divided in the circumferential direction of the magnetic drum and is formed in the same direction. Japanese Utility Model Publication No. 38-7716 shows a short-circuit ring provided at both axial ends of a magnetic drum to reduce impedance and improve torque characteristics. are formed perpendicularly to the circumferential direction, and even if short-circuit rings were provided on both edges of the magnetic drum, no effect of improving torque characteristics could be obtained.
（目的）
この考案は、インダクタータイプにおけるトル
ク特性を改善して構造を小形化し得るようにした
ことを目的とする。(Purpose) The purpose of this invention is to improve the torque characteristics in an inductor type so that the structure can be made smaller.
（問題点を解決するための手段）
このため、駆動軸と出力軸の一方に固着した磁
性ドラムと、機枠に取り付けたヨークとの間に他
方軸に固定して非磁性材で軸方向に連結された２
組の誘導子を設け、前記ヨークに２組の誘導子が
それぞれ異極性になるように励磁する励磁コイル
をそなえるとともに、前記磁性ドラムの誘導子と
対向する面の両外側および誘導子相互を連結する
非磁性材と対向する部分にそれぞれ配置した３個
の低抵抗導電性の短絡環を設けてある。(Means for solving the problem) For this reason, a magnetic drum fixed to one of the drive shaft and output shaft, and a yoke attached to the machine frame are fixed to the other shaft, and a non-magnetic material is used to rotate the drum in the axial direction. 2 connected
A set of inductors is provided, and the yoke is provided with an excitation coil that excites the two sets of inductors to have different polarities, and the inductors are connected to both outer sides of the surface facing the inductor of the magnetic drum and to each other. Three low-resistance conductive short-circuit rings are provided, each of which is placed in a portion facing the non-magnetic material.
（実施例）
図に示す実施例において、１は機枠で、駆動軸
２と出力軸３をそれぞれ軸受４，５を介して回転
自由に支持している。６は駆動軸２に支持板７を
介して取り付けられた磁性ドラム、８，９は誘導
子で、それぞれ前記磁性ドラム６の内周面に対向
させたくし歯状の磁極８ａ，９ａと連結板８ｂ，
９ｂで構成されている。１０は前記誘導子８，９
を連結する非磁性体、１１は出力軸３に固着した
誘導子支持板、１２は機枠１に取り付けたヨーク
で励磁コイル１３を巻装し、励磁コイル両側の磁
極脚をそれぞれ前記誘導子８，９の連結板８ｂ，
９ｂに対向させている。１４，１５，１６は磁性
ドラム６の内周面に設けた低抵抗導体よりなる短
絡環で、誘導子８，９との対向面の外側および対
向面相互間の非磁性体１０と対向する部分の三個
所にそれぞれ周方向に設けてある。(Embodiment) In the embodiment shown in the drawings, reference numeral 1 denotes a machine frame that rotatably supports a drive shaft 2 and an output shaft 3 via bearings 4 and 5, respectively. 6 is a magnetic drum attached to the drive shaft 2 via a support plate 7, and 8 and 9 are inductors, each having comb-tooth-shaped magnetic poles 8a and 9a facing the inner peripheral surface of the magnetic drum 6, and a connecting plate 8b. ，
9b. 10 is the inductor 8, 9
11 is an inductor support plate fixed to the output shaft 3, 12 is a yoke attached to the machine frame 1, around which an excitation coil 13 is wound, and the magnetic pole legs on both sides of the excitation coil are connected to the inductor 8, respectively. , 9 connecting plates 8b,
It is facing 9b. Reference numerals 14, 15, and 16 are short-circuit rings made of a low resistance conductor provided on the inner peripheral surface of the magnetic drum 6, and the portions facing the non-magnetic material 10 on the outside of the surface facing the inductors 8 and 9 and between the facing surfaces. They are provided in the circumferential direction at three locations, respectively.
励磁コイル１３を励磁すると、第１図に点線で
示すように、ヨーク１２の磁極脚から一方の誘導
子８の磁極８ａを介して磁性ドラム６を軸方向に
通り、他方の誘導子９を介してヨークにもどる磁
束φが各磁極ごとに形成される。このため駆動軸
２で回転される磁性ドラム６の磁極８ａ，９ａと
対向する面に、それぞれ反対方向の渦電流を生じ
て誘導子８，９にトルクを発生させるが、磁性ド
ラム６内周面の両側および中央にそれぞれ短絡環
１４，１５，１６が設けられているため、第２図
に示すように前記両方の渦電流の一部がそれぞれ
短絡環１４，１５から中央の短絡環１６を同一方
向に流れ、インピーダンスを低下させてトルク特
性を改善させ、誘導子支持板１１に加わる渦電流
トルクが大きくなる。 When the excitation coil 13 is excited, as shown by the dotted line in FIG. A magnetic flux φ that returns to the yoke is formed for each magnetic pole. For this reason, eddy currents are generated in opposite directions on the surfaces of the magnetic drum 6 rotated by the drive shaft 2 that face the magnetic poles 8a and 9a, and torque is generated in the inductors 8 and 9, but the inner peripheral surface of the magnetic drum 6 Since short-circuit rings 14, 15, and 16 are provided on both sides and in the center, as shown in FIG. The eddy current torque applied to the inductor support plate 11 increases as the impedance decreases and the torque characteristics are improved.
（本考案の効果）
このように、磁性ドラムに２組の誘導子を対向
させて磁路を構成するようにした渦電流接手にお
いて、磁性ドラムの誘導子との対向面の両外側と
対向面相互の間にそれぞれ低抵抗導体の短絡環を
設けているので、３個の短絡環によりトルク特性
が改善され、所要のトルクを発生するための磁束
量を少なくすることができ、励磁コイルや誘導子
を小さくして全体構造を小形にすることができる
効果がある。(Effects of the present invention) In this eddy current joint in which two sets of inductors are opposed to a magnetic drum to form a magnetic path, both outer sides of the surface of the magnetic drum facing the inductor and the opposite surface Since short-circuit rings of low-resistance conductors are provided between each other, the torque characteristics are improved by the three short-circuit rings, and the amount of magnetic flux required to generate the required torque can be reduced. This has the effect of making the whole structure smaller by making the child smaller.
第１図は本案の実施例を示す断面図、第２図は
Ａ−Ａ線にそつて一部を示す動作説明図である。
１は機枠、２は駆動軸、３は出力軸、６は磁性
ドラム、７は支持板、８，９は誘導子、１０は非
磁性体、１１は誘導子支持板、１２はヨーク、１
４，１５，１６は短絡環である。
FIG. 1 is a sectional view showing an embodiment of the present invention, and FIG. 2 is an explanatory diagram showing a part of the operation along line A-A. 1 is a machine frame, 2 is a drive shaft, 3 is an output shaft, 6 is a magnetic drum, 7 is a support plate, 8 and 9 are inductors, 10 is a non-magnetic material, 11 is an inductor support plate, 12 is a yoke, 1
4, 15, and 16 are shorted rings.
Claims (1)
よび出力軸をそなえ、前記駆動軸と出力軸の一方
に固定した磁性ドラムと、他方軸に固定され、そ
れぞれ前記磁性ドラムに対向するくし歯状の磁極
を周方向に形成した２組の誘導子と、機枠に取り
付け前記誘導子に対向するヨークと、ヨークに巻
装し前記各組の誘導子を異極性に励磁する励磁コ
イルとを設け、前記磁性ドラムの誘導子と対向す
る面の両外側および対向面相互の間にそれぞれ低
抵抗導体よりなる３個の短絡環をそなえたことを
特徴とする渦電流接手。 A comb comprising a machine frame, a drive shaft and an output shaft rotatably supported by the machine frame, a magnetic drum fixed to one of the drive shaft and the output shaft, and a comb fixed to the other shaft and facing the magnetic drum, respectively. two sets of inductors having tooth-shaped magnetic poles formed in the circumferential direction; a yoke mounted on the machine frame and facing the inductors; and an excitation coil wound around the yoke to excite each set of inductors to different polarities. An eddy current joint comprising: three short-circuit rings made of a low-resistance conductor, respectively, provided on both outer sides of the surface of the magnetic drum facing the inductor and between the opposing surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2336087U JPH0419989Y2 (en) | 1987-02-18 | 1987-02-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2336087U JPH0419989Y2 (en) | 1987-02-18 | 1987-02-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63131589U JPS63131589U (en) | 1988-08-29 |
| JPH0419989Y2 true JPH0419989Y2 (en) | 1992-05-07 |
Family
ID=30821600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2336087U Expired JPH0419989Y2 (en) | 1987-02-18 | 1987-02-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0419989Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2506598Y2 (en) * | 1990-04-28 | 1996-08-14 | いすゞ自動車株式会社 | Eddy current type retarder |
| JPH0811053Y2 (en) * | 1990-04-28 | 1996-03-29 | いすゞ自動車株式会社 | Eddy current retarder |
| JP5545969B2 (en) * | 2009-04-13 | 2014-07-09 | 宮城県 | Power transmission device |
-
1987
- 1987-02-18 JP JP2336087U patent/JPH0419989Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63131589U (en) | 1988-08-29 |
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