JPS60207445A - Cylindrical linear pulse motor - Google Patents
Cylindrical linear pulse motorInfo
- Publication number
- JPS60207445A JPS60207445A JP6226984A JP6226984A JPS60207445A JP S60207445 A JPS60207445 A JP S60207445A JP 6226984 A JP6226984 A JP 6226984A JP 6226984 A JP6226984 A JP 6226984A JP S60207445 A JPS60207445 A JP S60207445A
- Authority
- JP
- Japan
- Prior art keywords
- cylindrical
- attached
- secondary side
- shaft
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
- H02K41/03—Synchronous motors; Motors moving step by step; Reluctance motors
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Linear Motors (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は応答性の向上等を図つ交円筒形リニアパルス
モータに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an intersecting cylindrical linear pulse motor with improved responsiveness.
従央の円筒形リニアパルスモータは値１図（イ１および
（ロ）に示す様に構成されている。これらの図において
１は円筒形状の部材によって構成され九ケースであり、
このケースｌの両端の開口部には円環状の端板部１ａ、
１ｂが各々設けられている。The secondary cylindrical linear pulse motor is constructed as shown in Figure 1 (A1 and (B)). In these figures, 1 is a cylindrical member and is a case of 9.
The openings at both ends of this case l include annular end plate portions 1a,
1b are provided respectively.
また、２および３はケース１の内周面に沿って各々配設
された断面コ字状の円環状のコアであり、これらコア２
および３の各磁極２ａ、２ｂおよび３ ａ、 、 ３
ｂには１／４ピツチずつのずれを有して歯部２Ｎ’ １
２１３’および３ ａ’ 、 ３ ｂ’が各々形成され
て゛いる。また、磁極ｚ八と２ｂの間および磁極３ａと
３ｂの間にはコイル４および５が各々取り付けられてお
り、コア２と３の間には円環状の永久磁石６が取り付け
られている。以上によす、円筒形リニアパルスモータの
一次側磁束発生装置７が構成されて−る。また、端板部
１８゜１１）の外側面には軸受機構８．８が各々取り付
けられている、この軸受機構８は中央部に円孔９８が形
成された正方形の板体９と、円孔９ａの周縁部の円周等
分４個所に形成された支持部９ｂ。Further, 2 and 3 are annular cores each having a U-shaped cross section and are disposed along the inner circumferential surface of the case 1.
and 3 magnetic poles 2a, 2b and 3 a, , 3
b has a deviation of 1/4 pitch, and the teeth 2N' 1
213', 3a' and 3b' are formed, respectively. Further, coils 4 and 5 are respectively attached between the magnetic poles z8 and 2b and between the magnetic poles 3a and 3b, and an annular permanent magnet 6 is attached between the cores 2 and 3. The primary side magnetic flux generating device 7 of the cylindrical linear pulse motor is constructed as described above. Further, bearing mechanisms 8.8 are attached to the outer surfaces of the end plate portions 18°11), and the bearing mechanisms 8 consist of a square plate body 9 with a circular hole 98 formed in the center, and a square plate body 9 with a circular hole 98 formed in the center. Support portions 9b are formed at four equal locations on the circumference of the peripheral edge of 9a.
９ｂ・・・に各々回動自在に取、り付けられ九ローラ１
０．１０・・・とから構成されている。ま几、−次側磁
束発生装置７の中空部には外周部に歯部２ａ′。Nine rollers 1 are each rotatably attached to 9b...
It is composed of 0.10... The hollow part of the secondary side magnetic flux generating device 7 has a toothed part 2a' on the outer periphery.
２ ” ＊ ３ ａ’ ｔ ａ ｂ’ と同°−ピッチ
の歯部１１ａが形成された円柱形状の２次側ロッド１１
が挿通されて込る。この２次側ロッド１１の外周部には
長手方向に沿って４条の溝１ｉｂｇｔｂ・・・が円周を
４等分する様に各々形成されており、これらの溝１ ｉ
ｂ ＠ ］ ｌ ｂ・・・がローラ１０．１０・・・
によって支持されてｂる。これにより、２次側ロッド１
１はその歯部１１ａが各磁極２ ’ ａ ２ ｂ 、３
ａ。2 ” * 3 A cylindrical secondary rod 11 in which tooth portions 11a having the same pitch as a' t a b' are formed.
is inserted and inserted. Four grooves 1ibgtb, .
b @ ] l b... is roller 10.10...
It is supported by b. As a result, the secondary rod 1
1, its teeth 11a are connected to each magnetic pole 2' a 2 b, 3
a.
３ｂの南部７ａ’ 、２ｂ’ 、３ａ’ 、３ｂ’ と
所定の間隙Ｇ、Ｇ、・・・を隔てた状態に支持され、長
手方向へ移動自在となっている。そして、コイル４およ
び５に所定のパルス信号を供給することにより各歯部２
ａ’ ＊ ２ ｂ’ ＊ ３ ａ ’ ＠ ３ ｂ
’ と歯部１１ａとの間の１．Ｊ１隙Ｇ、Ｇ・・・に順
次磁束を発生させ、これにより、二次側ロッド１１を一
次側磁束発生装置７の中空部に沿ってステップ状に歩進
動作させる様になっている。この場合、二次側ロッド１
１を固定して一次側磁束発生装置７を移動させる様にし
てもよい。It is supported with predetermined gaps G, G, . By supplying a predetermined pulse signal to the coils 4 and 5, each tooth 2
a' * 2 b' * 3 a' @ 3 b
1 between ' and the tooth portion 11a. Magnetic flux is sequentially generated in the J1 gaps G, G, . In this case, the secondary rod 1
1 may be fixed and the primary magnetic flux generating device 7 may be moved.
ところで、上述した従来の円筒形リニアモータにおいて
、二次側ロッド１１を移動子とし九場合、この二次側ロ
ッド１１は円柱状の部材によって構成されており、重量
が大であるため、供給したパルス信号に対する応答性が
悪いという欠点があった。ここで、二次側ロッド１１を
固定子とし、−次側磁束発生装置７を移動子とすること
が考えられる。しかしながら、−次側磁束発生装置７に
はコア２，３、コイル４．５、および永久磁石６等が設
けられているので軽量化による応答性の向上を図ること
はできず、さらに、−次側磁束発生装置７には給電を行
なう必要があるため、この磁束発生装置７を移動子とす
ることは信頼性に欠ける。By the way, in the above-described conventional cylindrical linear motor, when the secondary rod 11 is used as a mover, the secondary rod 11 is constituted by a cylindrical member and has a large weight. The drawback was that the response to pulse signals was poor. Here, it is conceivable to use the secondary rod 11 as a stator and the secondary side magnetic flux generator 7 as a mover. However, since the negative side magnetic flux generator 7 is provided with cores 2, 3, coils 4.5, permanent magnets 6, etc., it is not possible to improve responsiveness by reducing the weight. Since it is necessary to supply power to the side magnetic flux generating device 7, using this magnetic flux generating device 7 as a moving element lacks reliability.
また、従来の円筒形リニアパルスモータの軸受構造では
■板体９およびローラｔｏ、ｉｏ・・・からなる２組の
軸受機構８．８をケース１の端板部１ａ。In addition, in the conventional bearing structure of a cylindrical linear pulse motor, two sets of bearing mechanisms 8.8 consisting of a plate body 9 and rollers to, io, etc. are attached to the end plate portion 1a of the case 1.
１ｂに各々別個に設けなければならない、■二次側ロッ
ド１１の外周部に平面状の底面および側面によって構成
される直線状の溝１１ｂを形成しなければならないが、
一般に円柱状の部材に高精度な平面および直線加工を施
すことは困難である、■二次側ロッド１１の外周部の円
周等分位置に４条の溝１１ｂ、Ｉｌｂ・・・を高精度に
形成することが困難である、などの理由から間隙Ｇを高
い精度で得ることが困難であつ念。これにより、例えば
二次側ロッド１１が偏心を起し、位置決め精度が低下し
てしまう問題が生じるため、間隙Ｇを高い精度で得るこ
とが課題となっていた。(2) A linear groove 11b constituted by a flat bottom surface and side surfaces must be formed on the outer periphery of the secondary rod 11.
In general, it is difficult to perform highly accurate plane and straight line machining on a cylindrical member. Please note that it is difficult to obtain the gap G with high accuracy due to reasons such as the difficulty of forming the gap G. This causes a problem in that, for example, the secondary rod 11 is eccentric and the positioning accuracy is reduced, so it has been a challenge to obtain the gap G with high accuracy.
この発明は上述した事情に鑑み、移動子の軽量化によっ
て応答性の向上を図ると共に、移動子と固定子の間の間
隙を高精度で得ることができる円筒形リニアパルスモー
タを提供するもので、内周面に沿って磁束発生手段が設
けられた円筒状の固定子と、前記固定子の両端の開口部
に取り付けられた１対の支持部材と、前記固定子と軸心
を共通にかつ前記固定子の中空部に配置され両端部が前
記１対の支持部材に各々取り付けられ几シャフトと、前
記固定子の内周面と所定の間隙を隔てて配置された円筒
状の移動子と、前記シャフトと前記移動子との間に配置
され、前記移動子を前記シャフトに沿って移動自在に支
持する転動体と、前記転動体を保持する保持部材とを具
備することを特徴としている、
以下図面を参照し、この発明の実施例について説明する
。第２図（イ）、（ロ）はこの発明の一実施例による円
筒形リニアパルスモータの構成を示す図であり、第１図
（４，（ロ）に対応する部分には同一の符号が付されて
いる。これらの図において２１は長尺の円筒状のケース
であり、このケース２１の長手方向略中央部の内周面に
沿ってコア２．３と永久磁石６が各々取り付けられてお
り、各コア２゜３にはコイル４．５が各々取り付けられ
ている。In view of the above-mentioned circumstances, the present invention provides a cylindrical linear pulse motor that improves responsiveness by reducing the weight of the mover and is capable of obtaining a gap between the mover and the stator with high precision. , a cylindrical stator provided with a magnetic flux generating means along the inner circumferential surface, a pair of support members attached to openings at both ends of the stator, and a cylindrical stator having a common axis with the stator; a cylindrical mover disposed in the hollow part of the stator and having both ends attached to the pair of support members, and a cylindrical mover disposed at a predetermined gap from the inner circumferential surface of the stator; It is characterized by comprising a rolling element that is disposed between the shaft and the moving element and supports the moving element so as to be movable along the shaft, and a holding member that holds the rolling element. Embodiments of the present invention will be described with reference to the drawings. FIGS. 2(A) and 2(B) are diagrams showing the configuration of a cylindrical linear pulse motor according to an embodiment of the present invention, and parts corresponding to FIGS. 1(4) and (B) are designated by the same reference numerals. In these figures, 21 is a long cylindrical case, and a core 2.3 and a permanent magnet 6 are attached along the inner circumferential surface of the case 21 at approximately the center in the longitudinal direction. A coil 4.5 is attached to each core 2.3.
また、ケース２１の両端の開口部には円板状の支持部材
２２．２３が各々嵌め込まれた状態で取り付けられて匹
る。これら支持部材２２．２３の各中心部にはシャフト
２４０両端部が各々取り付けられてめる。このシャフト
２４の外周には第３図に示す様にポール２５．２５・・
・が配置されると共に、これらのボール２５．２５・・
・を保持する丸孔２６Ａ 、２６ａ・・・を有する円筒
状の保持部材２６が配置されている。さらに保持部材２
６の外周には円筒状の二次側移動子２７が配置されてい
る。Further, disc-shaped support members 22 and 23 are fitted into the openings at both ends of the case 21 and attached to the openings. Both ends of a shaft 240 are attached to the center of each of these support members 22, 23. On the outer circumference of this shaft 24, as shown in Fig. 3, there are poles 25, 25...
・are placed and these balls 25.25...
A cylindrical holding member 26 having round holes 26A, 26a, . . . for holding . Furthermore, holding member 2
A cylindrical secondary side mover 27 is arranged on the outer periphery of the slider 6 .
この二次側移動子２７の外周部には第１図（イ）に示し
ミニ次側ロッド１１の歯部１１ａと同様に歯部２７ａが
形成されており、ま友二次側移動子２７はその内周面が
ボール２５．２５・・・に当接することにより、シャフ
ト２４に沿って移動自在となっている。この場合、二次
側移動子２７はその一端部が支持部材２２に当接する位
置から、その他端部が支持部材２３に当接する位置まで
移動可能となっている。また二次側移動子２７の一端部
には細長い方形部材２８．２９の各一端部が取り付けら
れている。これら方形部材２８および２９は支持部材２
２に形成された角孔２２ａおよび２２ｂに各々挿通され
、摺動自在に支持されており、これらの各他端部には方
形部材３０の両端部が各々取９付けられてｂる。A toothed portion 27a is formed on the outer periphery of this secondary side mover 27, similar to the toothed portion 11a of the mini secondary side rod 11 as shown in FIG. 1(A). By abutting the inner circumferential surface of the ball 25, 25, . . . , it is movable along the shaft 24. In this case, the secondary side mover 27 is movable from a position where one end thereof abuts the support member 22 to a position where the other end abuts the support member 23. Further, one end of each of elongated rectangular members 28 and 29 is attached to one end of the secondary side mover 27. These square members 28 and 29 are the support member 2
The rectangular members 30 are inserted into square holes 22a and 22b formed in the rectangular holes 22a and 22b, respectively, and are slidably supported, and both ends of a rectangular member 30 are respectively attached to the other ends thereof.
以上の構成において、コイル４および５に所定のパルス
信号を供給すると、従来と同様に各歯部２ ａ ’ ＊
２ ｂ ’ ａ ３ ａ ’ ＃ ３ ｂ ’と歯部
２７ａとの間の間隙Ｇに順次磁束が発生し、これにより
、二次側移動子ｚ７が一次側磁束発生装置７の中空部に
沿ってステップ状に歩進動作する。この場合、ボール２
５．２５・・・および保持部材２６は二次側移動子２７
の移動に伴なって、二次側移動子２７の移動量の１／２
だけ移動する。In the above configuration, when a predetermined pulse signal is supplied to the coils 4 and 5, each tooth portion 2a'*
Magnetic flux is sequentially generated in the gap G between 2 b ′ a 3 a ′ # 3 b ′ and the tooth portion 27a, and as a result, the secondary side mover z7 moves along the hollow part of the primary side magnetic flux generation device 7. Moves in steps. In this case, ball 2
5.25... and the holding member 26 are the secondary side mover 27
1/2 of the movement amount of the secondary side mover 27
move only.
上述した実施例によれば二次側移動子２７を必要最小限
の厚みを有する中空構造としたので、従来の二次側ロッ
ド１１と比較して軽量となり応答性を向上することがで
きる。また、軸受構造が全て円筒加工を施した部材の組
み合せ葭よって構成されているため、−次側磁束発生装
ｆ＃、７と二次側移動子２７との間の間隙Ｇが高精度で
得られる。According to the embodiment described above, the secondary side mover 27 has a hollow structure having the minimum required thickness, so it is lighter than the conventional secondary side rod 11 and can improve responsiveness. In addition, since the bearing structure is entirely composed of a combination of cylindrical members, the gap G between the secondary side magnetic flux generator f#, 7 and the secondary side mover 27 can be adjusted with high precision. It will be done.
以上説明し皮様に、この発明によれば、内周面に沿って
磁束発生手段が設けられた円筒状の固定子と、前記固定
子の両端の開口部に取り付けられた１対の支持部材と、
前記固定子と軸心を共通にかつ前記固定子の中空部に配
置され、両端部が前記１対の支持部材に各々取シ付けら
れたシャフトと、前記固定子の内周面と所定の間隙を隔
てて配置された円筒状の移動子と、前記シャフトと前記
移動子との間に配置さ゛れ、前記移動子を前記シャフト
に沿って移動自在に支持する転動体と、前記転動体を保
持する保持部材とを設けたので、移動子の軽量化によっ
て応答性の向上を図ることがで、きると共に、移動子と
固定子との間の間隙を高精度で得ることができる利点が
得られる。As explained above, according to the present invention, there is provided a cylindrical stator in which a magnetic flux generating means is provided along the inner peripheral surface, and a pair of support members attached to openings at both ends of the stator. and,
a shaft having a common axis with the stator and disposed in the hollow part of the stator, and having both ends attached to the pair of support members, and a predetermined gap between the inner circumferential surface of the stator and the shaft; a cylindrical mover placed between the shaft and the mover, a rolling element that supports the mover so as to be movable along the shaft, and a rolling element that holds the rolling element. Since the holding member is provided, the responsiveness can be improved by reducing the weight of the mover, and the gap between the mover and the stator can be obtained with high precision.
第１図（イ）および（ロ）は従来の円筒形リニアパルス
モータの構成を示す一部切り欠き正面図および側面図、
第２図（イ）および（ロ）はこの発明の一実施例による
円筒形ＩＪ ニアパルスモータの構成を示す一部切り欠
き正面図および側面図、第３図は第２図（イ）に示し危
シャフト２４の外周に配されたボール２５および保持部
材２６の構成を示す斜視図である。
２．３・・・・・・コア、４．５・旧・・コイル、６・
旧・・永久磁石、７・・・・・・−次側磁束発生装置（
固定子）、２１・・・・・・ケ−Ｘ、２２．ｚａ・・団
・支持部材、２４・・・・・・シャフト、２５・・・・
・・ボール、２６・・・・・・保持部材、２７・・団・
二次側移動子、２８．２９．３０・・・・・・方形部材
。Figures 1 (a) and (b) are partially cutaway front and side views showing the configuration of a conventional cylindrical linear pulse motor;
Figures 2 (A) and (B) are partially cutaway front and side views showing the configuration of a cylindrical IJ near-pulse motor according to an embodiment of the present invention, and Figure 3 is shown in Figure 2 (A). FIG. 2 is a perspective view showing the configuration of a ball 25 and a holding member 26 disposed on the outer periphery of a shaft 24. FIG. 2.3... Core, 4.5 Old... Coil, 6...
Old...Permanent magnet, 7...-Next side magnetic flux generator (
stator), 21...K-X, 22. za... group/support member, 24... shaft, 25...
...Ball, 26...Holding member, 27...Group...
Secondary side mover, 28.29.30... Square member.
Claims (1)
子と、前記固定子の両端の開口部に取シ付けられた１対
の支持部材と、前記固定子と軸心を共通にかつ前記固定
子の中空部に配置され、両端部が前記１対の支持部材に
各々取り付けられたシャフトと、前記固定子の内周面と
所定の間隙を隔てて配置された円筒状の移動子と、前記
シャフトと前記移動子との間に配置され、前記移動子を
前記シャフトに沿って移動自在に支持する転動体と、前
記転動体を保持する保持部材とを具備することを％徴と
する円筒形リニアパルスモータ。a cylindrical stator provided with a magnetic flux generating means along its inner peripheral surface; a pair of support members attached to openings at both ends of the stator; and a shaft disposed in the hollow part of the stator and having both ends attached to the pair of supporting members, and a cylindrical mover disposed at a predetermined gap from the inner circumferential surface of the stator. and a rolling element that is disposed between the shaft and the moving element and supports the moving element so as to be movable along the shaft, and a holding member that holds the rolling element. Cylindrical linear pulse motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6226984A JPS60207445A (en) | 1984-03-30 | 1984-03-30 | Cylindrical linear pulse motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6226984A JPS60207445A (en) | 1984-03-30 | 1984-03-30 | Cylindrical linear pulse motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60207445A true JPS60207445A (en) | 1985-10-19 |
| JPH0463623B2 JPH0463623B2 (en) | 1992-10-12 |
Family
ID=13195260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6226984A Granted JPS60207445A (en) | 1984-03-30 | 1984-03-30 | Cylindrical linear pulse motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60207445A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0291638A2 (en) * | 1987-03-26 | 1988-11-23 | International Business Machines Corporation | Linear actuator |
| FR2660125A1 (en) * | 1990-02-19 | 1991-09-27 | Nat Space Dev Agen | Electromagnetic jack |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54111316A (en) * | 1978-01-26 | 1979-08-31 | Exxon Research Engineering Co | Floppy disk drive unit |
| JPS5574358A (en) * | 1978-11-28 | 1980-06-04 | Aisin Seiki Co Ltd | Linear strepping motor |
-
1984
- 1984-03-30 JP JP6226984A patent/JPS60207445A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54111316A (en) * | 1978-01-26 | 1979-08-31 | Exxon Research Engineering Co | Floppy disk drive unit |
| JPS5574358A (en) * | 1978-11-28 | 1980-06-04 | Aisin Seiki Co Ltd | Linear strepping motor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0291638A2 (en) * | 1987-03-26 | 1988-11-23 | International Business Machines Corporation | Linear actuator |
| FR2660125A1 (en) * | 1990-02-19 | 1991-09-27 | Nat Space Dev Agen | Electromagnetic jack |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0463623B2 (en) | 1992-10-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |