JPS63129858A - Linear pulse motor - Google Patents
Linear pulse motorInfo
- Publication number
- JPS63129858A JPS63129858A JP27239886A JP27239886A JPS63129858A JP S63129858 A JPS63129858 A JP S63129858A JP 27239886 A JP27239886 A JP 27239886A JP 27239886 A JP27239886 A JP 27239886A JP S63129858 A JPS63129858 A JP S63129858A
- Authority
- JP
- Japan
- Prior art keywords
- base
- magnetic pole
- pole teeth
- permanent magnet
- stator
- 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
- 230000005284 excitation Effects 0.000 claims description 8
- 230000036316 preload Effects 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000005304 joining Methods 0.000 abstract description 3
- 230000004907 flux Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004080 punching Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Linear Motors (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
この発明は、例えばワードプロセッサ等のフロッピーデ
ィスクドライブの磁気ヘッド駆動系等に適用するリニア
パルスモークに関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a linear pulse smoke applied to, for example, a magnetic head drive system of a floppy disk drive such as a word processor.
〈従来の技術〉
この種平板状リニアパルスモータとして、例えば特開昭
６０−１１３６５２号公報に記載されたものがある。上
記の発明は、第３図および第４図に示す如く、バックヨ
ーク９１、永久磁石９２、一対の励磁コイル９３．４相
の磁極歯９４からなる固定子９上に、軸受部材９５を介
して下面に磁極歯９７を形成した移動子９６を配備し、
固定子９上には、移動子９６の一側に移動子９６の走行
基準ガイド９８、および他側に移動子９６を基準ガイド
９７に弾圧附勢する予圧機構９９を配備している。<Prior Art> This type of flat linear pulse motor is described, for example, in Japanese Patent Application Laid-open No. 113652/1983. The above invention, as shown in FIGS. 3 and 4, is mounted on a stator 9 consisting of a back yoke 91, a permanent magnet 92, a pair of excitation coils 93, and four-phase magnetic pole teeth 94, via a bearing member 95. A mover 96 with magnetic pole teeth 97 formed on the lower surface is provided,
On the stator 9, a travel reference guide 98 for the mover 96 is provided on one side of the mover 96, and a preload mechanism 99 for biasing the mover 96 against the reference guide 97 is provided on the other side.
〈発明が解決しようとする問題点〉
ところが、上記従来のリニアパルスモークは、平坦なバ
ックヨークの上面に永久磁石および４相の磁極歯部材を
一体に取付けて構成しているため、組立て時の位置決め
が困難であるという問題点がある。<Problems to be Solved by the Invention> However, the conventional linear pulse smoker described above is constructed by integrally attaching a permanent magnet and a four-phase magnetic pole tooth member to the upper surface of a flat back yoke. There is a problem that positioning is difficult.
〈問題点を解決するための手段〉
上記の目的を達成するための、この発明の詳細な説明す
ると、この発明は、ベースの上面にヨーク、永久磁石、
４相の磁極歯、励磁コイルを配設した固定子と、前記磁
極歯と対向する面に磁極歯を形成した移動子と、固定子
と移動子の磁極歯間に所定のギャップを形成する軸受機
構とを具備してなるリニアパルスモータにおいて、前記
ベースには、永久磁石および該永久磁石の両側にそれぞ
れ対をなすヨークを位置決め固定する支持壁を配設して
なるものである。<Means for Solving the Problems> To explain in detail the present invention to achieve the above object, the present invention has a yoke, a permanent magnet,
A stator having four-phase magnetic pole teeth and an excitation coil, a mover having magnetic pole teeth formed on a surface facing the magnetic pole teeth, and a bearing that forms a predetermined gap between the magnetic pole teeth of the stator and the mover. In the linear pulse motor, the base is provided with support walls for positioning and fixing a permanent magnet and a pair of yokes on both sides of the permanent magnet.
く作用〉
上記の構成によると、この発明では、ベース上に永久磁
石、および対をなすヨークを取付け、支持壁に接合する
ことにより、直ちに正確な位置決めがなされ、以て、部
品数の残少および組立て作業の省力化を実現した効果を
奏する。According to the above structure, in this invention, by attaching a permanent magnet and a pair of yokes to the base and joining them to the support wall, accurate positioning is immediately achieved, thereby reducing the number of parts remaining. It also has the effect of saving labor in assembly work.
〈実施例〉
図面は、この発明の一実施例にかかるリニアパルスモー
タを示している。<Embodiment> The drawing shows a linear pulse motor according to an embodiment of the present invention.
１ｉ例のリニアパルスモークは、ベース２の上面に永久
磁石３．４相のヨーク４ａ〜４ｄおよび磁極歯５ａ〜５
ｄ、励磁コイル６を配設した固定子１と、前記磁極歯５
ａ〜５ｄと対向する面に磁極歯８１を形成した移動子８
と、固定子ｌと移動子８との間に所定のギャップを形成
する軸受機構７とからなる。The linear pulse smoke of example 1i has permanent magnets 3.4 phase yokes 4a to 4d and magnetic pole teeth 5a to 5 on the upper surface of the base 2.
d, the stator 1 provided with the excitation coil 6 and the magnetic pole teeth 5;
Mover 8 with magnetic pole teeth 81 formed on the surface facing a to 5d
and a bearing mechanism 7 that forms a predetermined gap between the stator l and the mover 8.
固定子ｌは、ベース２の中央部に、両側面にＮ、Ｓ極を
有す角棒状永久磁石３を固定し、その両側にそれぞれ対
をなすヨーク４ａ、４ｂ。The stator l has a rectangular rod-shaped permanent magnet 3 fixed to the center of the base 2 and having N and S poles on both sides thereof, and has a pair of yokes 4a and 4b on both sides thereof.
４ｃ、４ｄを配置し、永久磁石３とヨーク４ａ〜４ｄの
上面に固定子磁極歯５を一体に固着している。4c and 4d, and stator magnetic pole teeth 5 are integrally fixed to the upper surfaces of the permanent magnet 3 and the yokes 4a to 4d.
前記ベース２は、例えば金属板のプレス成形体であって
、このベース２には、縦横互いに平行した支持壁２１が
切り起し加工によって形成されており、各支持壁２１に
囲まれたベース２の上面へ永久磁石３および４相のヨー
ク４ａ〜４ｄを組込み、固定している。また、ベース２
の両端部には、これを延長し且つ延長部に止め孔２３を
穿設して、機器への取付は部２２、および−側に予圧バ
ネを保合支持する係止片２４が切り起し加工により形成
されている。The base 2 is, for example, a press-molded body of a metal plate, and the base 2 has support walls 21 that are parallel to each other vertically and horizontally formed by cutting and bending. A permanent magnet 3 and four-phase yokes 4a to 4d are installed and fixed on the upper surface of the magnet. Also, base 2
This is extended at both ends, and a locking hole 23 is bored in the extended portion, and a locking piece 24 for securing and supporting a preload spring is cut and raised on the negative side. It is formed by processing.
前記固定子磁極歯５は、縦横スリット５１゜５２を設け
て４相に分割し、それぞれ同ピツチを有し且つ１／４ピ
ッチ宛位相をずらせた磁極歯５ａ〜５ｄを形成している
。The stator magnetic pole teeth 5 are divided into four phases by providing vertical and horizontal slits 51 and 52, forming magnetic pole teeth 5a to 5d having the same pitch and shifted in phase by 1/4 pitch.
励磁コイル６は、鉄芯６１にスプール６２を嵌着してス
プール外周にコイル６３を巻回し、これを前記ヨーク４
ａ〜４ｄの左右両側に配設し、固定されている。The excitation coil 6 is constructed by fitting a spool 62 onto an iron core 61 and winding a coil 63 around the spool.
They are arranged and fixed on both the left and right sides of a to 4d.
軸受機構７は、水平壁７２の一辺に垂直壁７３を有すＬ
型すテーナ７１に対し、水平壁には抜孔７４を設けてコ
ロ軸７５を係合し、垂直壁７３には、適所に抜孔または
切欠部７６を設けて球体７７を保合保持している。該軸
受機構７は、固定子磁極歯５の両側に配備して移動子８
の両側辺を支持するもので、コロ軸７５は固定子１と移
動子８の磁気ギャップを設定し、球体７７は移動子８の
側面と走行基準ガイド１１および予圧ガイド１２との間
に位置し、移動子８の側面を鉛直に支持している。両リ
テーナ７１において、水平壁７２の両端には、それぞれ
内向きに突出したストッパー７８が設けられ、軸受機構
７が移動子８に連動して移動するとき、ストッパー７８
が固定子磁極歯５に接して移動が規制される。The bearing mechanism 7 has a vertical wall 73 on one side of a horizontal wall 72.
For the mold retainer 71, a punching hole 74 is provided in the horizontal wall to engage the roller shaft 75, and a punching hole or notch 76 is provided in the vertical wall 73 at an appropriate position to securely hold the sphere 77. The bearing mechanism 7 is arranged on both sides of the stator magnetic pole teeth 5 and
The roller shafts 75 set a magnetic gap between the stator 1 and the slider 8, and the spheres 77 are located between the sides of the slider 8 and the running reference guide 11 and the preload guide 12. , vertically supports the side surface of the mover 8. In both retainers 71, stoppers 78 that protrude inward are provided at both ends of the horizontal wall 72, and when the bearing mechanism 7 moves in conjunction with the slider 8, the stoppers 78
is in contact with the stator magnetic pole teeth 5 and its movement is restricted.
尚、図示例においてベース２上の支持壁２１は、縦横対
向した４個所に設けたが、これは１個所以上数個所に設
けるも可く、また必要に応じて、支持壁２１とヨーク４
ａ〜４ｄとを溶接等により一体結合することにより、モ
ータの剛性をアップし得る。In the illustrated example, the support walls 21 on the base 2 are provided at four locations facing each other vertically and horizontally, but they may be provided at one or more locations, and if necessary, the support walls 21 and the yoke 4 may be provided at four locations.
By integrally joining a to 4d by welding or the like, the rigidity of the motor can be increased.
次にリニアパルスモータの動作を説明する。Next, the operation of the linear pulse motor will be explained.
第１図および第２図において、励磁コイル６ａに電流を
流すとき、固定子磁極歯５ａでは永久磁石３によるバイ
アス磁束を強め合い、固定子磁極歯５ｂでは弱め合う方
向に磁束が発生し、移動子８の磁極歯８１と固定子磁極
歯５ａが対向した状態で安定する。In FIGS. 1 and 2, when a current is passed through the excitation coil 6a, the bias magnetic flux generated by the permanent magnet 3 is strengthened in the stator magnetic pole teeth 5a, and the magnetic flux is generated in a direction that weakens each other in the stator magnetic pole teeth 5b, causing movement. The magnetic pole teeth 81 of the child 8 and the stator magnetic pole teeth 5a are stabilized in an opposing state.
次にコイル６ａの電流を切り、コイル６ｂに電流を流す
とき、固定子磁極歯５ｄでは永久磁石３のバイアス磁束
を強め合い固定子磁極歯５ｄでは弱め合う方向に磁束が
発生し、移動子８の磁極歯８１と固定子磁極歯５Ｃとが
対向して安定する。同様にコイル６ａに逆方向の電流を
流すことにより、移動子８の磁極歯８１と固定子磁極歯
５ｂが対向して安定し、コイル６ｂに逆方向の電流を流
すと移動子８の磁極歯８１と固定子磁極歯５ｄが対向し
て安定する。ここで固定子磁極歯５ａ、５ｂ、５ｃ、５
ｄにおいて、磁極歯５ａと５ｂおよび５Ｃと５ｄは磁極
歯列ピツチの１７２、磁極歯５ａと５Ｃは１／４ピッチ
位相がずれているため、上記の動作で移動子８は１／４
ピツチＡ方向に移動するのである。Next, when the current in the coil 6a is cut off and the current is made to flow in the coil 6b, magnetic fluxes are generated in the direction of strengthening the bias magnetic flux of the permanent magnet 3 at the stator magnetic pole teeth 5d and weakening each other at the stator magnetic pole teeth 5d. The magnetic pole teeth 81 and the stator magnetic pole teeth 5C are opposed and stabilized. Similarly, by passing a current in the opposite direction to the coil 6a, the magnetic pole teeth 81 of the mover 8 and the stator magnetic pole teeth 5b are stabilized as they face each other. 81 and the stator magnetic pole tooth 5d are opposed to each other for stability. Here, stator magnetic pole teeth 5a, 5b, 5c, 5
At d, the magnetic pole teeth 5a and 5b and 5C and 5d have a pitch of 172, and the magnetic pole teeth 5a and 5C are out of phase with each other by 1/4 pitch.
It moves in the pitch A direction.
〈発明の効果〉
上記の如く、ベースの上面にヨーク、永久磁石、４相の
磁極歯、励磁コイルを配設した固定子と、前記磁極歯と
対向する面に磁極歯を形成した移動子と、固定子と移動
子の磁極歯間に所定のギャップを形成する軸受機構とを
具備してなるリニアパルスモータにおいて、前記ベース
に位置決め用支持壁を設け、この支持壁によって永久磁
石およびヨークをベース上に位置決めするようにしたか
ら、リニアパルスモータの組立作業が一段と簡易となり
、コストダウンを実現し得る等、構成簡単にして発明目
的を達成した効果を奏する。<Effects of the Invention> As described above, there is provided a stator in which a yoke, a permanent magnet, four-phase magnetic pole teeth, and an excitation coil are arranged on the upper surface of the base, and a mover in which magnetic pole teeth are formed on the surface facing the magnetic pole teeth. , a linear pulse motor equipped with a bearing mechanism that forms a predetermined gap between the magnetic pole teeth of a stator and a slider, a positioning support wall is provided on the base, and the permanent magnet and the yoke are attached to the base by the support wall. Since the linear pulse motor is positioned upward, the assembling work of the linear pulse motor is further simplified, and the cost can be reduced.This has the effect of simplifying the structure and achieving the purpose of the invention.
第１図はこの発明の一実施例にかかるリニアパルスモー
タの斜視図、第２図は第１図の分解斜視図、第３図は従
来例を示す斜視図、第４図は第３図の分解斜視図である
。
ｌ・・・・［１子 ２・・・・ベース２１・・
・・支持壁 ３・・・・永久磁石４ａ〜４ｄ・
・・・ヨーク
５ａ〜５ｄ・・・・固定子磁極歯
６・・・・励磁コイル ７・・・・軸受機構８・・
・・移動子
特許 出 願人 立石電機株式会社
代理人 弁理士 鈴 木 由 充
／１．ンｊΔ２Ｊ−ｃ −１乃ｍコイ・し２・−・ベ
ース ７・−７軸＆］久犠２１・−・ 炎）キ
臀ｔ３ ・−一わ資力）３−・永ス名森石
ム〜Ｌｄ 、−ヨーク
ｊａ−〜ｌ・−ｒｊ］定ｊ石蔑症歯
ニア＋２）■
什ｔｒ２−みＭ−＋−＋疲１２
２ム ＸＩ ２２
骨３）コ
オ力！子ｋ（Ｊ・１“を元４徐斗ネ是）シ１利私旧Fig. 1 is a perspective view of a linear pulse motor according to an embodiment of the present invention, Fig. 2 is an exploded perspective view of Fig. 1, Fig. 3 is a perspective view of a conventional example, and Fig. 4 is a perspective view of Fig. 3. It is an exploded perspective view. l...[1 child 2...Base 21...
...Supporting wall 3...Permanent magnets 4a to 4d.
...Yoke 5a to 5d...Stator magnetic pole teeth 6...Excitation coil 7...Bearing mechanism 8...
...Mover patent Applicant: Tateishi Electric Co., Ltd. Agent: Patent attorney: Yu Mitsuru Suzuki / 1. NjΔ2J-c -1nomoi・shi2・−・Base 7・−7 axis &] Kusai 21・−・flame) Kibutto t3・−ichiwa resources) 3−・Eisu Namori Ishimu~ Ld, -York ja-~l・-rj] Tej stone disdain tooth +2)■ Titr2-MiM-+-+Fatigue 12 2mu XI 22 Bone 3) Core power! Child K (J.1" is the original 4 Xu Doo Ne is)
Claims (4)
、励磁コイルを配設した固定子と、前記磁極歯と対向す
る面に磁極歯を形成した移動子と、固定子と移動子の磁
極歯間に所定のギャップを形成する軸受機構とを具備し
てなるリニアパルスモータにおいて、前記ベースには、
永久磁石および該永久磁石の両側にそれぞれ対をなすヨ
ークを位置決め固定する支持壁を配設して成るリニアパ
ルスモータ。(1) A stator with a yoke, a permanent magnet, four-phase magnetic pole teeth, and an excitation coil arranged on the top surface of the base, a mover with magnetic pole teeth formed on the surface facing the magnetic pole teeth, a stator, and a mover. In the linear pulse motor, the base includes a bearing mechanism that forms a predetermined gap between the magnetic pole teeth of the base.
A linear pulse motor comprising a permanent magnet and support walls for positioning and fixing a pair of yokes on both sides of the permanent magnet.
体に形成されている特許請求の範囲第１項記載のリニア
パルスモータ。(2) The linear pulse motor according to claim 1, wherein the support wall is formed integrally with a part of the base by cutting and bending.
け部が一体に形成されている特許請求の範囲第１項記載
のリニアパルスモータ。(3) The linear pulse motor according to claim 1, wherein an end portion of the base is integrally formed with a mounting portion for attaching to a device by extending the base.
し加工により形成されている特許請求の範囲第１項記載
のリニアパルスモータ。(4) The linear pulse motor according to claim 1, wherein a locking piece for holding a preload spring is formed on the base by cutting and bending.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27239886A JPS63129858A (en) | 1986-11-14 | 1986-11-14 | Linear pulse motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27239886A JPS63129858A (en) | 1986-11-14 | 1986-11-14 | Linear pulse motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63129858A true JPS63129858A (en) | 1988-06-02 |
Family
ID=17513342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27239886A Pending JPS63129858A (en) | 1986-11-14 | 1986-11-14 | Linear pulse motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63129858A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5729509A (en) * | 1995-09-01 | 1998-03-17 | Takahashi; Hiroshi | Track crossing control for double optical disk drive device |
| WO2021171934A1 (en) * | 2020-02-25 | 2021-09-02 | 日立Astemo株式会社 | Linear motor, compessor equipped with linear motor, and refrigerator and vehicle air suspension provided with said compressor |
-
1986
- 1986-11-14 JP JP27239886A patent/JPS63129858A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5729509A (en) * | 1995-09-01 | 1998-03-17 | Takahashi; Hiroshi | Track crossing control for double optical disk drive device |
| WO2021171934A1 (en) * | 2020-02-25 | 2021-09-02 | 日立Astemo株式会社 | Linear motor, compessor equipped with linear motor, and refrigerator and vehicle air suspension provided with said compressor |
| JP2021136719A (en) * | 2020-02-25 | 2021-09-13 | 株式会社日立産機システム | Linear motor, compressor equipped with linear motor, and air suspension for refrigerator and vehicle equipped with compressor |
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