JP2001231242A - Linear dc motor conveyance apparatus - Google Patents
Linear dc motor conveyance apparatusInfo
- Publication number
- JP2001231242A JP2001231242A JP2000038658A JP2000038658A JP2001231242A JP 2001231242 A JP2001231242 A JP 2001231242A JP 2000038658 A JP2000038658 A JP 2000038658A JP 2000038658 A JP2000038658 A JP 2000038658A JP 2001231242 A JP2001231242 A JP 2001231242A
- Authority
- JP
- Japan
- Prior art keywords
- permanent magnet
- linear
- track
- magnet
- motor
- 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
Landscapes
- Linear Motors (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、搬送物を無人搬
送するリニア直流モータ搬送機に関し、特に永久磁石界
磁を磁性体被覆したリニア直流モータ搬送機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a linear DC motor carrier for unmanned conveyance of articles, and more particularly to a linear DC motor carrier having a permanent magnet field coated with a magnetic material.
【０００２】[0002]
【従来の技術】クリーンルーム等で被加工物（例えば、
複数のシリコンウエーハを収容したウエーハカセット）
を搬送するとき、省力化と汚染防止のため、無人搬送機
が使用されることが多い。予め搬送ルートが固定され、
搬送後の載置位置が高精度であることを要求されるとき
は、天井付近に搬送軌道を敷設し、この軌道に永久磁石
を配設して界磁とし、軌道に吊り下げ、もしくは軌道に
跨座した搬送機に組み込んだ電機子との間でリニア直流
モータを形成して搬送することが行われる。2. Description of the Related Art Workpieces (for example, in a clean room)
Wafer cassette containing multiple silicon wafers)
When transporting paper, unmanned transporters are often used to save labor and prevent contamination. The transport route is fixed in advance,
When the placement position after transport is required to be high precision, a transport track is laid near the ceiling, permanent magnets are arranged on this track to make it a field, and it is suspended on the track or A linear DC motor is formed and conveyed to and from an armature incorporated in a straddled conveyor.
【０００３】図４は、軌道１と搬送機１６の外観斜視図
である。また、図５及び図６は軌道とリニア直流モータ
（以下、リニアモータと略称する）周りの構造を示す説
明図である。搬送機１６に組み込まれたリニアモータ
（電機子）５を駆動することによって鉛直下向きに取り
付けられた永久磁石３による界磁との間に推進力が発生
する。FIG. 4 is an external perspective view of the track 1 and the transporter 16. FIGS. 5 and 6 are explanatory views showing the structure around a track and a linear DC motor (hereinafter abbreviated as a linear motor). By driving the linear motor (armature) 5 incorporated in the transfer device 16, a propulsion force is generated between the linear motor (armature) 5 and the field generated by the permanent magnet 3 mounted vertically downward.
【０００４】従って、永久磁石３とリニアモータ５との
ギャップ長（空隙）は、できる限り短い（狭い）ことが
望ましいが、両者が接触してどちらかが損傷を受けるこ
とを避けるために、また、外観上の観点から永久磁石３
に保護用として磁石カバー１４を設けている。この保護
カバー１４は、非磁性材料の曲げ加工品を用い、磁石保
持材２にネジで取り付けている。Accordingly, it is desirable that the gap length (gap) between the permanent magnet 3 and the linear motor 5 be as short (narrow) as possible. From the viewpoint of appearance, the permanent magnet 3
Is provided with a magnet cover 14 for protection. The protective cover 14 is formed by bending a non-magnetic material, and is attached to the magnet holding member 2 with screws.
【０００５】[0005]
【発明が解決しようとする課題】ところが上述の方法で
は、曲げ加工を精密に行うことが困難で丸みを持ち、ま
た磁石中央で膨らみを生じてしまうので、リニアモータ
のモールド面とのギャップ長（空隙）を大きくとらざる
を得ず、効率的でないという課題があった。また、磁石
カバーは非磁性材料の曲げ加工品をネジ止めで取り付け
る構造なので、取付作業に時間がかかり、コストが高く
なってしまうという課題があった。また、軌道の分岐等
のため、磁石の配置が不連続となったとき、磁石カバー
とリニアモータとが接触して互いに損傷を受ける心配が
あるという課題があった。However, in the above-mentioned method, it is difficult to perform bending precisely, and the method has roundness and swells at the center of the magnet. There is a problem that the gap has to be large and inefficient. In addition, since the magnet cover has a structure in which a bent product made of a non-magnetic material is attached with screws, there is a problem in that it takes a long time to attach the magnet cover and the cost increases. Further, when the arrangement of the magnets becomes discontinuous due to a branch of the track or the like, there is a problem that the magnet cover and the linear motor may be in contact with each other and may be damaged.
【０００６】本発明はこのような背景の下になされたも
ので、磁石カバーの材質を磁性体平板として永久磁石の
磁力によってこの磁石カバーを吸引、保持して固定する
ことにより、リニアモータとの間の空隙を確実に確保で
き、接触による損傷を回避できるとともに、その分だけ
空隙を小さくして効率アップを図ることができ、低コス
トで取り付け作業に要する作業時間を短くすることがで
きるリニア直流モータ搬送機を提供することを目的とす
る。SUMMARY OF THE INVENTION The present invention has been made under such a background. The material of the magnet cover is made of a magnetic flat plate, and the magnet cover is attracted, held and fixed by the magnetic force of a permanent magnet so that it can be connected to a linear motor. A linear DC that can reliably secure the gap between them, avoid damage due to contact, and reduce the gap by that amount to improve efficiency, and reduce the time required for installation work at low cost. An object is to provide a motor carrier.
【０００７】[0007]
【課題を解決するための手段】請求項１に記載の発明
は、リニア直流モータ搬送機の軌道の界磁を形成する永
久磁石の保護カバーであって、所定板厚の磁性平板を前
記永久磁石の磁力により吸引、保持して固定することに
よって前記永久磁石を保護することを特徴とするリニア
直流モータ搬送機を提供する。According to a first aspect of the present invention, there is provided a protective cover for a permanent magnet for forming a field of a track of a linear DC motor carrier, wherein the magnetic flat plate having a predetermined thickness is formed by the permanent magnet. A linear DC motor carrier, wherein the permanent magnet is protected by being attracted, held and fixed by the magnetic force.
【０００８】[0008]
【発明の実施の形態】以下、この発明の一実施形態につ
いて図を参照しながら説明する。図１はこの発明の一実
施形態によるリニアモータ搬送機の構成を示す分解斜視
図である。図１において、符号１は軌道であり、天井付
近に敷設されている。この軌道１の下面には、磁石保持
材２を介して永久磁石３が取り付けられている。この永
久磁石３は図２に示すように交互に逆極性の磁極をもつ
ようになっている。さらに、この永久磁石３の保護のた
めの磁石カバー４が設けられている。DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view showing a configuration of a linear motor carrier according to an embodiment of the present invention. In FIG. 1, reference numeral 1 denotes a track, which is laid near a ceiling. A permanent magnet 3 is attached to the lower surface of the track 1 via a magnet holding material 2. As shown in FIG. 2, the permanent magnets 3 have magnetic poles of alternately opposite polarities. Further, a magnet cover 4 for protecting the permanent magnet 3 is provided.
【０００９】軌道１には、前出の図４に示すように搬送
機１６が吊り下げられ、この搬送機１６の上部には図１
に示すリニアモータ（電機子）５が実装され、このリニ
アモータ（電機子）５からの駆動によって前記永久磁石
３との間に推進力を発生させる。A conveyor 16 is suspended from the track 1 as shown in FIG.
Is mounted, and driving from the linear motor (armature) 5 generates a propulsion force between the linear motor and the permanent magnet 3.
【００１０】以下、永久磁石３を保護する本発明の一実
施形態による磁石カバー４について説明する。この磁石
カバー４には永久磁石３を覆う寸法の磁性平板を用い、
永久磁石３の磁力によって吸引、保持、固定されて永久
磁石３を保護する役割をもつ。このようにして固定され
た磁石カバー４と永久磁石３及びリニアモータ（電機
子）５の断面図を図３に示す。Hereinafter, a magnet cover 4 for protecting the permanent magnet 3 according to an embodiment of the present invention will be described. For the magnet cover 4, a magnetic flat plate having a size to cover the permanent magnet 3 is used.
It is attracted, held and fixed by the magnetic force of the permanent magnet 3 and has a role of protecting the permanent magnet 3. FIG. 3 shows a sectional view of the magnet cover 4, the permanent magnet 3, and the linear motor (armature) 5 fixed in this manner.
【００１１】磁石カバー４に使用される磁性平板には、
錆等の発生防止のため磁性ステンレス板を用いることが
望ましいが、磁性体であれば鉄板などでもよく、板厚も
０．３ｍｍ程度の薄板で充分目的を達することができ
る。このように磁石カバー４として磁性平板を使用する
ことにより、漏れ磁束が５％程度増加するが、磁石カバ
ー４は永久磁石３と密着するため、永久磁石３とリニア
モータ５との空隙を確実に確保しながら接触を回避で
き、さらにギャップ長（間隔）を短く（狭く）すること
が期待できる。The magnetic flat plate used for the magnet cover 4 includes:
It is desirable to use a magnetic stainless steel plate in order to prevent the occurrence of rust and the like, but an iron plate or the like may be used as long as it is a magnetic material, and a thin plate having a thickness of about 0.3 mm can sufficiently achieve the purpose. The use of a magnetic flat plate as the magnet cover 4 increases the leakage magnetic flux by about 5%. However, since the magnet cover 4 is in close contact with the permanent magnet 3, the gap between the permanent magnet 3 and the linear motor 5 can be reliably formed. Contact can be avoided while securing the gap, and the gap length (interval) can be expected to be shortened (narrowed).
【００１２】以上、本発明の一実施形態の動作を図面を
参照して詳述してきたが、本発明はこの実施形態に限ら
れるものではなく、本発明の要旨を逸脱しない範囲の設
計変更等があっても本発明に含まれる。例えば、実施形
態は吊り下げ式のリニア直流モータ搬送機の場合であっ
たが、軌道上に跨座して走行する形式の搬送機にも適用
できる。また、磁石カバーは、他の固定手段と併用する
ようにしてもよい。The operation of one embodiment of the present invention has been described in detail with reference to the drawings. However, the present invention is not limited to this embodiment, and a design change or the like may be made without departing from the gist of the present invention. The present invention is also included in the present invention. For example, the embodiment is the case of the suspension type linear DC motor carrier, but the present invention is also applicable to a carrier of a type that runs while straddling a track. Further, the magnet cover may be used in combination with other fixing means.
【００１３】[0013]
【発明の効果】これまでに説明したように、この発明に
よれば、永久磁石を保護する磁石カバーに板厚の薄い磁
性平板を用い、永久磁石の磁力によって吸引、保持、固
定するようにしたので、永久磁石と保護カバーとは密着
し、永久磁石とリニアモータとの間隔を狭くすることが
でき、効率の高いシステムとすることができるという効
果が得られる。また、加工精度を必要としない平板を永
久磁石に貼り付けるだけなので、加工及び取り付けコス
トを低減できるという効果が得られる。As described above, according to the present invention, a thin magnetic flat plate is used for the magnet cover for protecting the permanent magnet, and the magnet is attracted, held, and fixed by the magnetic force of the permanent magnet. Therefore, the permanent magnet and the protective cover are in close contact with each other, and the distance between the permanent magnet and the linear motor can be reduced, so that an effect that a highly efficient system can be obtained can be obtained. In addition, since a flat plate that does not require processing accuracy is merely attached to the permanent magnet, the effect of reducing processing and mounting costs can be obtained.
【図１】 本発明の一実施形態によるリニアモータ周り
の構成を示す分解斜視図。FIG. 1 is an exploded perspective view showing a configuration around a linear motor according to an embodiment of the present invention.
【図２】 永久磁石の極性を示す説明図。FIG. 2 is an explanatory diagram showing the polarity of a permanent magnet.
【図３】 本発明の一実施形態による軌道とリニアモー
タ周りの構造を示す断面図。FIG. 3 is a sectional view showing a track and a structure around a linear motor according to an embodiment of the present invention.
【図４】 軌道と搬送機の外観斜視図。FIG. 4 is an external perspective view of a track and a transporter.
【図５】 従来の技術による軌道とリニアモータ周りの
構成を示す分解斜視図。FIG. 5 is an exploded perspective view showing a configuration around a track and a linear motor according to a conventional technique.
【図６】 従来の技術による軌道とリニアモータ周りの
構造を示す断面図。FIG. 6 is a cross-sectional view showing a track and a structure around a linear motor according to a conventional technique.
１…軌道 ２…磁石保持材 ３…永久磁石 ４…磁石カバー ５…リニアモータ（電機子） １４…磁石カバー １４ａ…取付穴 １６…搬送機 DESCRIPTION OF SYMBOLS 1 ... Track 2 ... Magnet holding material 3 ... Permanent magnet 4 ... Magnet cover 5 ... Linear motor (armature) 14 ... Magnet cover 14a ... Mounting hole 16 ... Carrier
Claims (1)
を形成する永久磁石の保護カバーであって、 所定板厚の磁性平板を前記永久磁石の磁力により吸引、
保持して固定することによって前記永久磁石を保護する
ことを特徴とするリニア直流モータ搬送機。1. A permanent magnet protection cover for forming a field of a track of a linear DC motor carrier, wherein a magnetic flat plate having a predetermined thickness is attracted by a magnetic force of the permanent magnet.
A linear DC motor carrier, wherein the permanent magnet is protected by holding and fixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000038658A JP2001231242A (en) | 2000-02-16 | 2000-02-16 | Linear dc motor conveyance apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000038658A JP2001231242A (en) | 2000-02-16 | 2000-02-16 | Linear dc motor conveyance apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001231242A true JP2001231242A (en) | 2001-08-24 |
Family
ID=18562357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000038658A Pending JP2001231242A (en) | 2000-02-16 | 2000-02-16 | Linear dc motor conveyance apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001231242A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006340492A (en) * | 2005-06-01 | 2006-12-14 | Sanyo Denki Co Ltd | Linear motor |
| EP2843814A3 (en) * | 2013-08-30 | 2016-03-09 | Yamaha Hatsudoki Kabushiki Kaisha | Cover for slider of linear conveyer, linear conveyer, slider assembly, and method of detaching cover from slider of linear conveyer |
| JP2017220982A (en) * | 2016-06-03 | 2017-12-14 | 村田機械株式会社 | Track traveling vehicle system, assembly method, and linear motor |
| JP2019154141A (en) * | 2018-03-02 | 2019-09-12 | 株式会社日立産機システム | Linear motor |
| JP2020054166A (en) * | 2018-09-28 | 2020-04-02 | 日立グローバルライフソリューションズ株式会社 | Linear motor, vibration damping device, and washing machine including them |
| KR20220020084A (en) * | 2020-08-11 | 2022-02-18 | 현대엘리베이터주식회사 | Linear motor and ropeless elevator system having the same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0614521A (en) * | 1992-06-25 | 1994-01-21 | Hitachi Metals Ltd | Magnetic circuit |
| JPH10146039A (en) * | 1996-11-13 | 1998-05-29 | Hitachi Metals Ltd | Movable coil type linear motor |
| JP2002531042A (en) * | 1998-11-18 | 2002-09-17 | シーメンス リニア モーター システムズ ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニ コマンディートゲゼルシヤフト | Linear motor and secondary side member of linear motor |
-
2000
- 2000-02-16 JP JP2000038658A patent/JP2001231242A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0614521A (en) * | 1992-06-25 | 1994-01-21 | Hitachi Metals Ltd | Magnetic circuit |
| JPH10146039A (en) * | 1996-11-13 | 1998-05-29 | Hitachi Metals Ltd | Movable coil type linear motor |
| JP2002531042A (en) * | 1998-11-18 | 2002-09-17 | シーメンス リニア モーター システムズ ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニ コマンディートゲゼルシヤフト | Linear motor and secondary side member of linear motor |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006340492A (en) * | 2005-06-01 | 2006-12-14 | Sanyo Denki Co Ltd | Linear motor |
| JP4708093B2 (en) * | 2005-06-01 | 2011-06-22 | 山洋電気株式会社 | Linear motor |
| EP2843814A3 (en) * | 2013-08-30 | 2016-03-09 | Yamaha Hatsudoki Kabushiki Kaisha | Cover for slider of linear conveyer, linear conveyer, slider assembly, and method of detaching cover from slider of linear conveyer |
| JP2017220982A (en) * | 2016-06-03 | 2017-12-14 | 村田機械株式会社 | Track traveling vehicle system, assembly method, and linear motor |
| JP2019154141A (en) * | 2018-03-02 | 2019-09-12 | 株式会社日立産機システム | Linear motor |
| JP7092521B2 (en) | 2018-03-02 | 2022-06-28 | 株式会社日立産機システム | Linear motor and compressor |
| JP2020054166A (en) * | 2018-09-28 | 2020-04-02 | 日立グローバルライフソリューションズ株式会社 | Linear motor, vibration damping device, and washing machine including them |
| JP7099926B2 (en) | 2018-09-28 | 2022-07-12 | 日立グローバルライフソリューションズ株式会社 | Linear motors, vibration damping devices, and washing machines equipped with them |
| KR20220020084A (en) * | 2020-08-11 | 2022-02-18 | 현대엘리베이터주식회사 | Linear motor and ropeless elevator system having the same |
| KR102465547B1 (en) | 2020-08-11 | 2022-11-11 | 현대엘리베이터주식회사 | Linear motor and ropeless elevator system having the same |
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