JP3096406B2 - Hybrid type stepping motor - Google Patents
Hybrid type stepping motorInfo
- Publication number
- JP3096406B2 JP3096406B2 JP07154106A JP15410695A JP3096406B2 JP 3096406 B2 JP3096406 B2 JP 3096406B2 JP 07154106 A JP07154106 A JP 07154106A JP 15410695 A JP15410695 A JP 15410695A JP 3096406 B2 JP3096406 B2 JP 3096406B2
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- stepping motor
- permanent magnet
- rotor shaft
- hybrid type
- 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 - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
Landscapes
- Motor Or Generator Frames (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明はハイブリッド型ステッピ
ングモータ、特に、振動を吸収できるハイブリッド型ス
テッピングモータに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hybrid stepping motor, and more particularly to a hybrid stepping motor capable of absorbing vibration.
【０００２】[0002]
【従来の技術】ある駆動周波数で現れるステッピングモ
ータの振動や同期回転からはずれる乱調を吸収する方法
としては、従来例えば、実開平３−１４９７２号公報に
示すようなものがある。2. Description of the Related Art Conventionally, as a method for absorbing a turbulence which deviates from the vibration or synchronous rotation of a stepping motor which appears at a certain driving frequency, there is a method as disclosed in Japanese Utility Model Laid-Open No. 3-14972.
【０００３】図２上記従来のステッピングモータを示
し、１は電動機、２はこの電動機１のハウジングより外
部に突出している出力回転子軸、３は上記出力回転子軸
２に同軸状に固着された円板部３ａと円筒部３ｂとより
成る磁性部材、４は上記磁性部材３に同軸状に回転自在
に装着された、軸方向に着磁したドーナツ状の永久磁石
である。FIG. 2 shows the above-mentioned conventional stepping motor, wherein 1 is an electric motor, 2 is an output rotor shaft projecting outside the housing of the electric motor 1, and 3 is coaxially fixed to the output rotor shaft 2. The magnetic member 4 composed of the disk portion 3a and the cylindrical portion 3b is a donut-shaped permanent magnet that is axially magnetized and is rotatably mounted on the magnetic member 3 coaxially.
【０００４】なお、図２に示す点線Ａは上記磁性部材３
と上記永久磁石４間に生じた磁路を示したものである。The dotted line A shown in FIG.
3 shows a magnetic path generated between the permanent magnet 4 and FIG.
【０００５】上記従来のステッピングモータにおいて
は、モータドライブ時に回転子軸２に速度変化が発生し
たとき、上記磁性部材３の円板部３ａに吸着されている
上記永久磁石４の速度は直ぐには変化せず、回転子軸２
が加速されたときは遅れて、減速されたときは進みとな
り、上記永久磁石４の側面と上記円板部３ａの側面との
間に摩擦力が働くから、上記回転子軸２にブレーキ力を
与え、ダンパー作用によりステッピングモータの振動や
乱調を抑えることができる。In the conventional stepping motor, when a speed change occurs in the rotor shaft 2 during motor driving, the speed of the permanent magnet 4 adsorbed on the disk portion 3a of the magnetic member 3 immediately changes. Without rotor shaft 2
Is delayed when accelerated, and advanced when decelerated, and a frictional force acts between the side surface of the permanent magnet 4 and the side surface of the disk portion 3a. As a result, the vibration and the turbulence of the stepping motor can be suppressed by the damper action.
【０００６】[0006]
【発明が解決しようとする課題】然しながら、上記従来
のステッピングモータにおいては、ダンパー作用を与え
る磁性部材３と永久磁石４を電動機１の外部に設けてい
るためスペースを要し、また、少なくとも磁性部材３と
永久磁石４の２つの部品を必要とするため、コスト低下
を図ることができないという欠点があった。However, in the above-described conventional stepping motor, the magnetic member 3 having a damper function and the permanent magnet 4 are provided outside the electric motor 1, so that a space is required. Since two parts, ie, the permanent magnet 3 and the permanent magnet 4, are required, the cost cannot be reduced.
【０００７】本発明は上記の欠点を除くようにしたもの
である。The present invention has been made to eliminate the above disadvantages.
【０００８】[0008]
【課題を解決するための手段】本発明のハイブリッド型
ステッピングモータは、固定子鉄芯と、回転子軸と、上
記回転子軸に固定された、回転子軸方向に着磁した永久
磁石及びこの永久磁石の両端面を挾持する回転子ポール
とより成る回転子とより成るハイブリッド型ステッピン
グモータにおいて、上記回転子の側面に対向するよう
に、上記回転子軸方向に着磁した永久磁石ホイールを上
記回転子軸に回転自在に且つ軸方向に移動自在に支承
し、この永久磁石ホイールと上記回転子軸の軸受の内輪
間にバネを介挿せしめたことを特徴とする。A hybrid type stepping motor according to the present invention comprises a stator iron core, a rotor shaft, a permanent magnet fixed to the rotor shaft and magnetized in the rotor axis direction, and a permanent magnet. In a hybrid type stepping motor comprising a rotor comprising rotor poles sandwiching both end surfaces of a permanent magnet, a permanent magnet wheel magnetized in the axial direction of the rotor is opposed to a side surface of the rotor. The permanent magnet wheel and the inner ring of the bearing of the rotor shaft are rotatably supported on the rotor shaft and movable in the axial direction.
It is characterized in that a spring is inserted between them.
【０００９】[0009]
【００１０】[0010]
【００１１】[0011]
【実施例】以下図面によって本発明の実施例を説明す
る。Embodiments of the present invention will be described below with reference to the drawings.
【００１２】図１において、５はハイブリッド型ステッ
ピングモータ、６は固定子ハウジング、７は固定子鉄
芯、８は固定子巻線、９は回転子軸２に固定された軸方
向に着磁した円筒形永久磁石、１０，１０はこの円筒形
永久磁石９の両端部に固定した磁性体より成る回転子ポ
ールを示し、本発明においては上記回転子ポール１０の
一側面に対向するよう、上記ハウジング６内で上記回転
子軸２にこれと同軸状に磁性体より成る円板状フライホ
イール１１を回転自在に且つ軸方向に移動自在に装着せ
しめる。また、上記回転子ポール１０と上記円板状フラ
イホイール１１との間の吸着力を増加させるために上記
回転子軸２の軸受け１２の内輪（図示せず）と上記フラ
イホイール１１との間にバネ１３を介在せしめる。 In FIG. 1, 5 is a hybrid type stepping motor, 6 is a stator housing, 7 is a stator core, 8 is a stator winding, and 9 is magnetized in the axial direction fixed to the rotor shaft 2. cylindrical permanent magnets, 10, 10 represents the rotor poles made of magnetic material fixed to both ends of the cylindrical permanent magnet 9, as the Te present invention odor opposed to one side of the rotor pole 10, the A disk-shaped flywheel 11 made of a magnetic material is coaxially mounted on the rotor shaft 2 in the housing 6 so as to be rotatable and axially movable. Further, the rotor pole 10 and the disc-shaped
To increase the suction force between the wheel 11
The inner ring (not shown) of the bearing 12 of the rotor shaft 2 is
A spring 13 is interposed between the wheel 13 and the wheel 11.
【００１３】[0013]
【００１４】本発明のハイブリッド型ステッピングモー
タは上記のような構成であるから、主磁路は上記固定子
鉄芯７と上記回転子ポール１０間のエアギャップを通る
図１の点線Ｂに示すような閉磁路となるが、上記円筒形
永久磁石９が軸方向に磁化されているため軸方向の漏洩
磁束もかなり発生し、この結果点線Ｃに示すように上記
円板状フライホイール１１を通る磁路も形成され、上記
円板状フライホイール１１が上記回転子ポール１０の側
面に吸着されるようになる。Since the hybrid type stepping motor of the present invention has the above configuration, the main magnetic path passes through the air gap between the stator core 7 and the rotor pole 10 as shown by a dotted line B in FIG. However, since the cylindrical permanent magnet 9 is magnetized in the axial direction, a considerable amount of leakage magnetic flux in the axial direction is also generated. As a result, as shown by the dotted line C, the magnetic flux passing through the disc-shaped flywheel 11 is increased. A path is also formed, and the disc-shaped flywheel 11 is attracted to the side surface of the rotor pole 10.
【００１５】従って、上記回転子軸２に速度変化がない
場合には上記円板状フライホイール１１は上記回転子ポ
ール１０と共に回転するが、上記回転子軸２が加速され
る場合には上記円板状フライホイール１１は上記回転子
ポール１０に対して遅れを生じ、また、上記回転子軸２
が減速される場合には上記回転子ポール１０に対して進
みを生じ、この結果、上記回転子ポール１０の側面と上
記円板状フライホイール１１の側面間に摩擦トルクを生
ずるから、ダンパー作用によりステッピングモータの振
動や乱調を防止することができるようになる。Therefore, when there is no speed change in the rotor shaft 2, the disc-shaped flywheel 11 rotates together with the rotor pole 10, but when the rotor shaft 2 is accelerated, the circular flywheel 11 rotates. The plate-shaped flywheel 11 causes a delay with respect to the rotor pole 10 and the rotor shaft 2
Is decelerated, advancing occurs with respect to the rotor pole 10, and as a result, a friction torque is generated between the side surface of the rotor pole 10 and the side surface of the disc-shaped flywheel 11, so that the damper action It becomes possible to prevent the stepping motor from vibrating or being tuned.
【００１６】なお、上記円板状フライホイール１１を永
久磁石とすれば、回転子ポール１０との吸着力を更に強
めることができる。If the disk-shaped flywheel 11 is made of a permanent magnet, the attraction force with the rotor pole 10 can be further increased.
【００１７】また、上記回転子ポール１０と上記円板状
フライホイール１１との間に摩擦係数の低い、例えばテ
フロン等のシート等を介在せしめれば、滑りを増加せし
めることができる。If a sheet having a low coefficient of friction, for example, a sheet of Teflon or the like is interposed between the rotor pole 10 and the disc-shaped flywheel 11, slippage can be increased.
【００１８】[0018]
【００１９】なお、上記フライホイール１１は回転子の
両側へ設けてもよい。The flywheel 11 may be provided on both sides of the rotor.
【００２０】[0020]
【発明の効果】上記のように本発明のハイブリッド型ス
テッピングモータによれば、回転子の永久磁石の漏洩磁
束を利用するため従来のような新たな永久磁石を必要と
せず部品数及びコストを低減でき、また、ダンパー部が
固定子ハウジング内に配置できるので小型化を図ること
ができるという大きな利益がある。As described above, according to the hybrid type stepping motor of the present invention, the number of parts and the cost are reduced without using a new permanent magnet unlike the conventional one because the leakage magnetic flux of the permanent magnet of the rotor is used. In addition, since the damper portion can be arranged in the stator housing, there is a great advantage that the size can be reduced.
【図１】本発明のハイブリッド型ステッピングモータの
縦断正面図である。FIG. 1 is a longitudinal sectional front view of a hybrid type stepping motor of the present invention.
【図２】従来のステッピングモータの縦断正面図であ
る。FIG. 2 is a vertical sectional front view of a conventional stepping motor.
１ 電動機 ２ 出力回転子軸 ３ 磁性部材 ３ａ 円板部 ３ｂ 円筒部 ４ 永久磁石 ５ ハイブリッド型ステッピングモータ ６ 固定子ハウジング ７ 固定子鉄芯 ８ 固定子巻線 ９ 円筒形永久磁石 １０ 回転子ポール １１ 円板状フライホイール １２ 軸受け １３ バネ DESCRIPTION OF SYMBOLS 1 Motor 2 Output rotor shaft 3 Magnetic member 3a Disk part 3b Cylindrical part 4 Permanent magnet 5 Hybrid stepping motor 6 Stator housing 7 Stator iron core 8 Stator winding 9 Cylindrical permanent magnet 10 Rotor pole 11 yen Plate flywheel 12 Bearing 13 Spring
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭60−219957（ＪＰ，Ａ) 特開 昭59−96862（ＪＰ，Ａ) 特開 昭63−18947（ＪＰ，Ａ) 特開 昭52−1417（ＪＰ，Ａ) 特開 平３−89841（ＪＰ，Ａ) 特開 平３−173345（ＪＰ，Ａ) 実開 平４−114771（ＪＰ，Ｕ) 実開 平２−110960（ＪＰ，Ｕ) 実開 平３−14972（ＪＰ，Ｕ) 特公 平６−91728（ＪＰ，Ｂ２) (58)調査した分野(Int.Cl.7，ＤＢ名) H02K 37/00 - 37/24 H02K 5/24 H02K 7/00 ──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-60-219957 (JP, A) JP-A-59-96862 (JP, A) JP-A-63-18947 (JP, A) JP-A Sho 52- 1417 (JP, A) JP-A-3-89841 (JP, A) JP-A-3-173345 (JP, A) JP-A-4-114771 (JP, U) JP-A-2-110960 (JP, U) Japanese Utility Model Application Hei 3-14972 (JP, U) Japanese Patent Application Hei 6-91728 (JP, B2) (58) Fields investigated (Int. Cl. 7 , DB name) H02K 37/00-37/24 H02K 5/24 H02K 7/00
Claims (1)
軸に固定された、回転子軸方向に着磁した永久磁石及び
この永久磁石の両端面を挾持する回転子ポールとより成
る回転子とより成るハイブリッド型ステッピングモータ
において、上記回転子の側面に対向するように、上記回
転子軸方向に着磁した永久磁石ホイールを上記回転子軸
に回転自在に且つ軸方向に移動自在に支承し、この永久
磁石ホイールと上記回転子軸の軸受の内輪間にバネを介
挿せしめたことを特徴とするハイブリッド型ステッピン
グモータ。1. A stator core, a rotor shaft, a permanent magnet fixed to the rotor shaft, magnetized in the direction of the rotor axis, and a rotor pole sandwiching both end faces of the permanent magnet. A permanent magnet wheel magnetized in the axial direction of the rotor so as to be rotatable about the rotor axis and axially movable so as to face a side surface of the rotor. To support this permanent
A spring is inserted between the magnet wheel and the inner ring of the rotor shaft bearing.
A hybrid stepping motor characterized by being inserted .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07154106A JP3096406B2 (en) | 1995-05-30 | 1995-05-30 | Hybrid type stepping motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07154106A JP3096406B2 (en) | 1995-05-30 | 1995-05-30 | Hybrid type stepping motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08331831A JPH08331831A (en) | 1996-12-13 |
| JP3096406B2 true JP3096406B2 (en) | 2000-10-10 |
Family
ID=15577061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP07154106A Expired - Fee Related JP3096406B2 (en) | 1995-05-30 | 1995-05-30 | Hybrid type stepping motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3096406B2 (en) |
-
1995
- 1995-05-30 JP JP07154106A patent/JP3096406B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08331831A (en) | 1996-12-13 |
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