JPH03261363A - Magnetic coupling - Google Patents
Magnetic couplingInfo
- Publication number
- JPH03261363A JPH03261363A JP5692890A JP5692890A JPH03261363A JP H03261363 A JPH03261363 A JP H03261363A JP 5692890 A JP5692890 A JP 5692890A JP 5692890 A JP5692890 A JP 5692890A JP H03261363 A JPH03261363 A JP H03261363A
- Authority
- JP
- Japan
- Prior art keywords
- load
- bearing
- magnet
- bearing box
- side magnet
- 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
- 230000008878 coupling Effects 0.000 title claims abstract description 19
- 238000010168 coupling process Methods 0.000 title claims abstract description 19
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 19
- 238000005192 partition Methods 0.000 claims description 24
- 238000005452 bending Methods 0.000 abstract description 13
- 230000000694 effects Effects 0.000 description 6
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 230000004323 axial length Effects 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011553 magnetic fluid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000005405 multipole Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 235000012431 wafers Nutrition 0.000 description 1
Landscapes
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野〕
この発明は、隔壁を隔てて対向する駆動側磁石と負荷側
磁石とからなる磁気カップリングに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a magnetic coupling consisting of a drive side magnet and a load side magnet that face each other with a partition wall in between.
磁気カンプリングは、グランドパツキン、オイルシール
、メカニカルシール又は磁性流体シール（例えば実開昭
６３−１６６７２１号公報、特に第３図）のような軸封
装置を使用しないで、容器等の隔壁を貫通して回転力を
伝達することができ、気密性は完全である。したがって
磁気カンプリングは、半導体装置の半導体ウェハの製造
プロセスにおける真空もしくは圧力容器又は特殊ガス容
器の中へ動力を伝達する場合や、電子又は精密機器の蒸
気加圧式耐環境試験容器等の中でファンを運転する場合
等によく使用される。Magnetic compression can penetrate the partition wall of a container, etc. without using a shaft sealing device such as a gland packing, oil seal, mechanical seal, or magnetic fluid seal (for example, Japanese Utility Model Application Publication No. 63-166721, especially Fig. 3). It can transmit rotational force and is completely airtight. Therefore, magnetic compression is used when transmitting power into a vacuum or pressure vessel or special gas vessel in the manufacturing process of semiconductor wafers for semiconductor devices, or when using a fan in a steam pressurized environmental test vessel for electronic or precision equipment. It is often used when driving.
磁気カップリングを使用したモータの従来例として、特
開昭６２−９５９６０号公報（文献１）、実開昭５９−
１５９７９７号公報（文献２）に示された技術が知られ
ている。Conventional examples of motors using magnetic coupling include Japanese Unexamined Patent Publication No. 1983-95960 (Reference 1) and Utility Model Application No. 1988-95960.
A technique disclosed in Publication No. 159797 (Document 2) is known.
文献１のものは、隔壁を隔てて対向する駆動側磁石と負
荷ａ磁石とからなる磁気カップリングにおいて、負荷側
磁石の外周と端面を囲む出力側シールドの軸心部に軸受
を設け、この軸受で支承される回転軸の一端でかつ、出
力側シールドの中に位置する側に前記負荷側磁石のホル
ダを固定し、他端に、すなわち出力側シールドの外側に
負荷取付部を設けるものである。In Document 1, in a magnetic coupling consisting of a drive side magnet and a load magnet A that face each other across a partition wall, a bearing is provided at the shaft center of an output side shield that surrounds the outer periphery and end face of the load side magnet. A holder for the load-side magnet is fixed to one end of the rotating shaft supported by the output-side shield and located inside the output-side shield, and a load mounting portion is provided at the other end, that is, outside the output-side shield. .
文献２のものは、隔壁を隔てて対向する駆動側磁石と負
荷側磁石とからなる磁気カップリングにおいて、隔壁に
相当する容器の外筒壁の負荷側に軸棒を気密に固定し、
この軸棒の外周側に軸受で支承される筒状の軸筒を配置
し、この軸筒の一端に負荷側磁石のホルダを固定し、他
端に負荷取付部を設けるものである。Document 2 discloses a magnetic coupling consisting of a drive side magnet and a load side magnet facing each other across a partition wall, in which a shaft rod is airtightly fixed to the load side of the outer cylindrical wall of a container corresponding to the partition wall,
A cylindrical shaft supported by a bearing is disposed on the outer peripheral side of the shaft, a holder for a load-side magnet is fixed to one end of the shaft, and a load attachment portion is provided at the other end.
前記の従来の技術に示す両文献においては負荷側磁石が
軸受装置を持っているので、負荷がファン、歯車装置の
ビニオン又は回転位置検出器のインデックス板等のよう
なものである場合には、負荷自体に軸受装置を装備する
ことなく、負荷側磁石の軸受装置を利用し、負荷（ＰＩ
Ｍ１石に設けた何らかの負荷取付部（文献１では回転軸
、文献２では軸筒）に前記負荷を直結すればよい。した
がって負荷の構造が簡単になるという利点がある。In both of the above-mentioned prior art documents, the load-side magnet has a bearing device, so if the load is a fan, a pinion of a gear device, an index plate of a rotational position detector, etc. Instead of equipping the load itself with a bearing device, the load (PI)
The load may be directly connected to some kind of load attachment part (rotating shaft in Document 1, shaft cylinder in Document 2) provided on the M1 stone. Therefore, there is an advantage that the load structure is simplified.
しかし文献１では、負荷側磁石と軸受スパンと負荷取付
部とが軸方向に並んで全体が軸方向に長くなり、また負
荷取付部にファンを取付けると出力側シールドの直径が
太き（てファンの吸込側又は吐出側の空気抵抗となる。However, in Document 1, the load-side magnet, bearing span, and load mounting part are aligned in the axial direction, making the whole body longer in the axial direction, and when a fan is attached to the load mounting part, the diameter of the output-side shield becomes thicker. air resistance on the suction side or discharge side.
また文献２では、軸受スパンの間に負荷側磁石と負荷取
付部とが位置して軸方向長さが有利であり、負荷側磁石
がファンの抵抗になることが少ない。Further, in Document 2, the load-side magnet and the load mounting portion are located between the bearing spans, and the axial length is advantageous, so that the load-side magnet is less likely to act as resistance to the fan.
しかし文献２の負荷側磁石と負荷との、特に負荷の自重
とアンバランス荷重は軸棒の根本（隔壁への固定部）に
大きな曲げモーメントを作用し、軸棒か弱い傾向にある
。回転体である軸筒の自重も曲げモーメントを増加させ
る。軸棒の弱さは太くすれば解決するが、これは軸受を
大径にして周速を増すことになり、軸受の損耗を早める
。そして負荷取付部は本来、太い軸筒の外周になるので
取付部材の直径が大きくなる傾向にある。However, between the load-side magnet and the load in Document 2, especially the load's own weight and unbalanced load, a large bending moment acts on the root of the shaft rod (the part fixed to the partition wall), which tends to weaken the shaft rod. The weight of the shaft cylinder, which is a rotating body, also increases the bending moment. The weakness of the shaft rod can be solved by making it thicker, but this increases the circumferential speed by increasing the diameter of the bearing, which accelerates the wear and tear of the bearing. Since the load mounting portion is originally the outer periphery of a thick shaft cylinder, the diameter of the mounting member tends to be large.
この発明の目的は、（１）軸受の径を大きくすることな
く、（２）回転体を支え、隔壁に固定される固定側部材
に作用する曲げモーメントに強く、（３）必要によりフ
ァンの空気抵抗が少なく、（４）隔壁から負荷取付部ま
での軸方向長さが短くても軸受荷重を増大させることな
く、（５）負荷側磁石と負荷との荷重比に応じて適正な
軸受負荷の配分ができ、（６）取付部材が小径となり、
（７）負荷側からの回転体及び軸受の脱着が容易になる
ような磁気カンプリングを提供することにある。The objects of this invention are (1) without increasing the diameter of the bearing, (2) strong against the bending moment acting on the stationary side member that supports the rotating body and fixed to the bulkhead, and (3) airflow of the fan if necessary. It has low resistance, (4) does not increase the bearing load even if the axial length from the bulkhead to the load attachment part is short, and (5) maintains an appropriate bearing load according to the load ratio between the load side magnet and the load. (6) The mounting member has a small diameter,
(7) An object of the present invention is to provide a magnetic compression ring that facilitates attachment and detachment of a rotating body and a bearing from the load side.
この発明１の磁気カップリングは、
隔壁を隔てて対向する駆動側磁石と負荷側磁石とからな
る磁気カップリングにおいて、前記隔壁の負荷側に気密
に固定される軸受箱と、この軸受箱の中に軸受を介して
支承され軸端部を負荷側に突出する回転軸と、前記軸端
部に固定され前記負荷側磁石を固定する磁石ホルダとを
備え、前記磁石ホルダ又は前記軸端部に負荷取付部を設
けるものである。The magnetic coupling of Invention 1 is a magnetic coupling consisting of a drive side magnet and a load side magnet facing each other across a partition wall, and includes a bearing box airtightly fixed to the load side of the partition wall, and an inside of the bearing box. a rotating shaft supported through a bearing through a bearing and having a shaft end protruding toward the load side; and a magnet holder fixed to the shaft end and fixing the load-side magnet; A mounting portion is provided.
発明２の磁気カップリングは、発明１において、前記隔
壁の凹部に前記軸受箱を取り付けるものである。A magnetic coupling according to a second aspect of the present invention is the magnetic coupling according to the first aspect, in which the bearing box is attached to the recessed portion of the partition wall.
発明３の磁気カンプリングは、発明１又は２において、
前記隔壁は前記負荷側磁石より直径が大きいものである
。A third aspect of the magnetic compression ring according to the first or second aspect of the present invention is that the partition wall has a larger diameter than the load-side magnet.
発明１においては、負荷、負荷側磁石、磁石ホルダから
なる回転体を支える固定部材は軸受箱であり、当然に文
献２の固定部材である軸棒より断面２次モーメントが格
段に大きくなる。したがって軸受箱の隔壁への固定部に
加わる曲げモーメントが同一であっても曲げモーメント
による根本の最大応力、先端のたわみ及び傾斜は前記断
面２次モーメントに反比例して格段と小さくなる。In invention 1, the fixed member that supports the rotating body consisting of the load, the load-side magnet, and the magnet holder is a bearing box, and the moment of inertia of the area is naturally much larger than that of the shaft rod that is the fixed member of document 2. Therefore, even if the bending moment applied to the portion fixed to the partition wall of the bearing box is the same, the maximum stress at the root, deflection and inclination at the tip due to the bending moment are significantly reduced in inverse proportion to the second moment of area.
また文献１の出力側シールドがなくて、軸方向寸法を適
宜に選べばファンを使用する場合にも空気抵抗が少ない
。その時、前記軸受箱の固定部の応力も何ら問題なく、
軸受荷重も文献２と同一になるように配置できる。Furthermore, there is no output side shield as in Document 1, and if the axial dimension is appropriately selected, air resistance is small even when a fan is used. At that time, there was no problem with the stress in the fixed part of the bearing box.
The bearing load can also be arranged to be the same as in Document 2.
発明２においては、凹部の深さ等を適宜に選べば、更に
軸受箱の曲げモーメントによる応力は減少し、軸受と、
軸受スパンに対し、負荷と負荷側磁石の自重等に対応し
て軸受荷重の配分を適切なものとする自由度がある。軸
受箱は凹部から着脱自在にもできる。In invention 2, if the depth of the recess is selected appropriately, the stress due to the bending moment of the bearing box can be further reduced, and the bearing and
With respect to the bearing span, there is a degree of freedom in appropriately distributing the bearing load in accordance with the load and the weight of the load-side magnet. The bearing box can also be detached from the recess.
発明３においては、負荷さえ少さいか取外せば、軸受ま
わり部材や磁気カンプリングを付けたままモータを容器
の内側からも外側からも着脱できる。In invention 3, if the load is small or the motor is removed, the motor can be attached or detached from the inside or outside of the container with the bearing surrounding members and magnetic compression ring still attached.
第１図は実施例１の断面図、第２図は実施例２の部分断
面図である。FIG. 1 is a sectional view of the first embodiment, and FIG. 2 is a partial sectional view of the second embodiment.
第１図において、容器１に０リング２ａを介して気密に
取付けられる隔壁２を隔てて、磁気カップリング３を構
成する駆動側磁石３ａと負荷側磁石３ｂとが対向して配
置される。隔壁２は負荷側磁石３ｂより大きくするとよ
い。隔壁２にはブラケット４を介してモータ５が固定さ
れ、このモータ５のモータ軸６にセットボルト６ａで固
定した駆動側の磁石ホルダ７に前記駆動側磁石３ａが接
着等で取付けられる。ここまではよく知られた構造で変
形も多い。In FIG. 1, a drive-side magnet 3a and a load-side magnet 3b, which constitute a magnetic coupling 3, are arranged facing each other across a partition wall 2 that is airtightly attached to a container 1 via an O-ring 2a. The partition wall 2 is preferably larger than the load side magnet 3b. A motor 5 is fixed to the partition wall 2 via a bracket 4, and the drive-side magnet 3a is attached by adhesive or the like to a drive-side magnet holder 7 fixed to a motor shaft 6 of the motor 5 with a set bolt 6a. Up to this point, the structure is well known and there are many variations.
前記隔壁２の負荷側の凹部２ｂに筒状の軸受箱１１がね
じ部１２で固定され、隔壁２の気密が保持される。軸受
箱１１の中には負荷側にラジアル軸受１３、反負荷側に
ラジアル軸受１４、スラスト軸受１５が配置され、回転
軸１６を回転自在に支承する。回転軸１６の軸端部１６
ａは軸受箱１１から負荷側に突出し、磁石ホルダ１７を
比較的強いはめあいで固定して取付ける。A cylindrical bearing box 11 is fixed to the recess 2b on the load side of the partition wall 2 with a threaded portion 12, and the airtightness of the partition wall 2 is maintained. Inside the bearing box 11, a radial bearing 13 is arranged on the load side, and a radial bearing 14 and a thrust bearing 15 are arranged on the anti-load side, and rotatably support the rotating shaft 16. Shaft end 16 of rotating shaft 16
A protrudes from the bearing box 11 toward the load side, and the magnet holder 17 is fixed and attached with a relatively strong fit.
この磁石ホルダ１７は有底筒状をなし、前記軸受箱１１
を囲むように配置して一方側の開口端に前記負荷側磁石
３ｂを接着等で固定し、他方側の負荷取付部１８にファ
ン等の負荷１ｏを比較的強いはめあいで固定する。This magnet holder 17 has a cylindrical shape with a bottom, and is
The load-side magnet 3b is fixed to the open end on one side by adhesive or the like, and the load 1o, such as a fan, is fixed to the load attachment part 18 on the other side with a relatively strong fit.
この実施例１の分解組立は簡単で、回転体と回転軸１６
が一体になって軸受から抜け、軸受箱もねじ部１２を緩
めればよく、軸受交換が簡単にできる。The disassembly and assembly of this embodiment 1 is easy, and the rotating body and rotating shaft 16
can be removed from the bearing in one piece, and the bearing box can also be easily replaced by loosening the threaded portion 12.
第２図の実施例２においては、軸受箱２１は０リング２
３の緊迫力で隔壁２２の凹部２２ｂに固定されて着脱が
容易であり、一方負荷１０は磁石ホルダ２７から突出す
る回転軸１６の負荷取付部１８に直接に固定される。特
に重要なことは軸受箱２１は気密上は負荷側にあるが凹
部２２ｂが大きく駆動側に凹んでいることである。その
他の構造は第１図と同一符号を付けて説明を省く。実施
例２も実施例１と同様に取外せることができ、軸受箱２
１は０リング２３を滑らせながら引き抜ける。In the second embodiment shown in FIG. 2, the bearing box 21 is
The load 10 is fixed to the recess 22b of the partition wall 22 with a tensile force of 3, making it easy to attach and detach.On the other hand, the load 10 is directly fixed to the load attachment portion 18 of the rotary shaft 16 protruding from the magnet holder 27. What is particularly important is that although the bearing box 21 is on the load side in terms of airtightness, the recess 22b is largely recessed toward the drive side. Other structures are given the same reference numerals as in FIG. 1, and their explanation will be omitted. Embodiment 2 can also be removed in the same way as Embodiment 1, and the bearing box 2
1 can be pulled out while sliding the O-ring 23.
前記の２実施例の変形例を説明すると、磁気カップリン
グ３を構成する磁石はよく使用される多極の永久磁石に
代り、スリップリングを使用して電磁石とすれば伝達ト
ルクが大きくなる。磁石を軸方向に対向させるのに代り
、円筒状の隔壁を隔てて径方向に対向させてもよい。駆
動側磁石を直結駆動するモータに代り、ヘルド、歯車装
置等で駆動してもよい。To explain a modification of the above two embodiments, if the magnet constituting the magnetic coupling 3 is an electromagnet using a slip ring instead of the commonly used multi-pole permanent magnet, the transmitted torque will be increased. Instead of axially opposing the magnets, they may be radially opposed with a cylindrical partition wall in between. Instead of a motor that directly drives the drive-side magnet, it may be driven by a heald, a gear device, or the like.
負荷であるファンの送風方向が矢印Ｗの方向であればス
ラスト軸受１５の位置は図示のとおりであるが送風方向
が逆であったり、他の負荷の場合によってはスラスト軸
受１５をラジアル軸受１３側に設けたり、文献１のよう
に１個の軸受でスラストと一対のラジアル軸受に代える
。軸受１３．１４及び１５は、用途が環境試験器等の場
合には異物の飛散を防ぐためにセラミック、ふっ素樹脂
等の無潤滑すべり軸受となるが、他の用途によっては密
閉ころがり軸受等が使用される。凹部２２ｂは隔壁本体
と別部材として気密に注意して組付けてもよい。If the air blowing direction of the load fan is in the direction of arrow W, the position of the thrust bearing 15 is as shown in the figure, but if the air blowing direction is reversed or there is another load, the thrust bearing 15 may be moved to the radial bearing 13 side. Or, as in Document 1, a single bearing can be used instead of a thrust bearing and a pair of radial bearings. Bearings 13, 14 and 15 are non-lubricated sliding bearings made of ceramic, fluororesin, etc. in order to prevent foreign matter from scattering when the application is an environmental test chamber, etc., but sealed rolling bearings, etc. are used depending on other applications. Ru. The recessed portion 22b may be assembled as a separate member from the bulkhead body, taking care to ensure airtightness.
軸受のスパンに対し、隔壁、負荷側磁石、負荷の軸方向
の寸法関係は第１図、第２図の外に適宜に変えて負荷と
負荷側磁石の重さ等に対応して適切なものとすることが
できる。このような応用は文献１又は２ではできない。With respect to the span of the bearing, the dimensional relationship in the axial direction of the bulkhead, load-side magnet, and load should be changed from those shown in Figures 1 and 2 to suit the weight of the load and load-side magnet, etc. It can be done. Such an application is not possible with Documents 1 and 2.
第１図で負荷を磁石ホルダ１７の円筒部に取付けてもよ
く、第２図で磁石ホルダ２７をボスと円板とからなる簡
単なものにできる。In FIG. 1, the load may be attached to the cylindrical portion of the magnet holder 17, and in FIG. 2, the magnet holder 27 can be made simple, consisting of a boss and a disk.
前記２実施例及び変形例によれば作用の項にも説明した
ように、回転体によって生じる軸受箱の根本の曲げモー
メントが同一であっても軸受箱の曲げ応力は格段に減少
して強度の心配が情無となり、各部材の軸方向寸法関係
が自由に選べて、軸受荷重の適正化、軸方向長さの調節
、ファンを用いる時の空気抵抗の減少等が自由にできる
。そして回転体や軸受付きの軸受箱や、これらを取付け
たままのモータの着脱が容易になって保守性が格段に向
上する。According to the above two embodiments and the modified example, as explained in the section of operation, even if the bending moment at the base of the bearing box caused by the rotating body is the same, the bending stress of the bearing box is significantly reduced, and the strength is improved. The axial dimension relationship of each member can be freely selected, and the bearing load can be optimized, the axial length can be adjusted, and the air resistance can be reduced when using a fan. In addition, it becomes easy to attach and detach the rotating body, the bearing box with the bearing, and the motor with these components attached, which greatly improves maintainability.
（発明の効果〕
この発明群の磁気カップリングは、
隔壁の負荷側に気密に固定される軸受箱と、この軸受箱
の中に軸受を介して支承され軸端部を負荷側に突出する
回転軸と、前記軸端部に固定され負荷側磁石を固定する
磁石ホルダとを備え、前記磁石ホルダ又は前記軸端部に
負荷取付部を設けるようにしたので、
負荷、磁石等の回転体による曲げモーメントは回転軸よ
り太くて断面二次モーメントの格段に大きい軸受箱の根
本に作用するので、曲げモーメントによる最大曲げ応力
が格段と小さくなって強固になるという効果があり、軸
受スパンを長くして回転精度や軸受荷重を軽減するよう
な配置にしても前記最大曲げ応力の増加に充分耐えるこ
とができるという効果がある。(Effects of the Invention) The magnetic coupling of this invention group includes a bearing box that is airtightly fixed to the load side of the bulkhead, and a rotating shaft that is supported in the bearing box via a bearing and whose shaft end protrudes toward the load side. The structure includes a shaft and a magnet holder that is fixed to the shaft end and fixes a load-side magnet, and a load attachment part is provided on the magnet holder or the shaft end, so that bending by a rotating body such as a load or a magnet can be prevented. The moment acts on the root of the bearing box, which is thicker than the rotating shaft and has a much larger cross-sectional moment of inertia, so the maximum bending stress due to the bending moment is much smaller and the bearing box is stronger, making it stronger. Even if the arrangement is arranged to reduce rotational accuracy and bearing load, there is an effect that the increase in the maximum bending stress can be sufficiently withstood.
したがって、軸受を小径にして周速を減らして軸受寿命
を長くすることができ、負荷がファンである場合に吸込
側又は吐出側の空気抵抗が減少してファンの特性を向上
させたり、負荷と負荷側磁石との自重等に対し軸受を自
由に適切配置することができるという効果がある。また
負荷を回転軸又は磁石ホルダのいずれにも取付けられ負
荷取付のボス等の取付部材も小径で簡単なものとなり、
負荷側からの回転体、軸受箱等の着脱が容易で保守が簡
単になるという効果がある。Therefore, by making the bearing smaller in diameter and reducing the peripheral speed, the bearing life can be extended, and when the load is a fan, the air resistance on the suction side or discharge side is reduced, improving the characteristics of the fan, and This has the effect that the bearing can be freely and appropriately arranged in response to its own weight with the load-side magnet. In addition, the load can be attached to either the rotating shaft or the magnet holder, and the mounting members such as load mounting bosses are small in diameter and simple.
This has the effect that the rotating body, bearing box, etc. can be easily attached and detached from the load side, making maintenance easier.
発明２では軸受箱を凹部に自由な深さで固定できるから
、軸受スパン、軸受径、軸受寿命を犠牲にすることなく
、隔壁からの突出寸法を短くできるという効果がある。In invention 2, since the bearing box can be fixed in the recess at any depth, it is possible to shorten the protrusion from the partition wall without sacrificing the bearing span, bearing diameter, or bearing life.
発明３では、負荷取付部と磁気カップリング装置を付け
たままのモータ等の駆動源を容器からそっくり着脱でき
るという効果がある。Invention 3 has the effect that a drive source such as a motor can be completely attached to and detached from the container with the load attachment part and the magnetic coupling device still attached.
第１図は実施例１の断面図、第２図は実施例２の部分断
面図である。
１・・・容器、２．２２・・・隔壁、２ｂ、２２ｂ・・
・凹部、３・・・磁気カップリング、３ｂ・・・負荷側
磁石、５・・・モータ、１０・・・負荷、１１．２１・
・・軸受箱、１５・・・スラスト軸受、１６・・・回転
軸、１６ａ・・・軸端部、１７．２７・・・磁石ホルダ
、１８・・・負荷取付第１図
第２図FIG. 1 is a sectional view of the first embodiment, and FIG. 2 is a partial sectional view of the second embodiment. 1... Container, 2.22... Partition wall, 2b, 22b...
・Recessed portion, 3... Magnetic coupling, 3b... Load side magnet, 5... Motor, 10... Load, 11.21.
... Bearing box, 15... Thrust bearing, 16... Rotating shaft, 16a... Shaft end, 17.27... Magnet holder, 18... Load installation Figure 1 Figure 2
Claims (1)
らなる磁気カップリングにおいて、前記隔壁の負荷側に
気密に固定される軸受箱と、この軸受箱の中に軸受を介
して支承され軸端部を負荷側に突出する回転軸と、前記
軸端部に固定され前記負荷側磁石を固定する磁石ホルダ
とを備え、前記磁石ホルダ又は前記軸端部に負荷取付部
を設けることを特徴とする磁気カップリング。 ２）請求項１記載の磁気カップリングにおいて、前記隔
壁の凹部に前記軸受箱を取り付けることを特徴とする磁
気カップリング。 ３）請求項１又は２記載の磁気カップリングにおいて、 前記隔壁は前記負荷側磁石より直径が大きいことを特徴
とする磁気カップリング。[Scope of Claims] 1) In a magnetic coupling consisting of a drive side magnet and a load side magnet facing each other across a partition wall, a bearing box hermetically fixed to the load side of the partition wall, and a bearing box inside the bearing box. A rotary shaft supported via a bearing and having a shaft end protruding toward a load side, and a magnet holder fixed to the shaft end and fixing the load side magnet, and a load is attached to the magnet holder or the shaft end. A magnetic coupling characterized by having a section. 2) The magnetic coupling according to claim 1, wherein the bearing box is attached to a recessed portion of the partition wall. 3) The magnetic coupling according to claim 1 or 2, wherein the partition wall has a larger diameter than the load side magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2056928A JP2682187B2 (en) | 1990-03-08 | 1990-03-08 | Magnetic coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2056928A JP2682187B2 (en) | 1990-03-08 | 1990-03-08 | Magnetic coupling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03261363A true JPH03261363A (en) | 1991-11-21 |
| JP2682187B2 JP2682187B2 (en) | 1997-11-26 |
Family
ID=13041168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2056928A Expired - Lifetime JP2682187B2 (en) | 1990-03-08 | 1990-03-08 | Magnetic coupling |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2682187B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002061892A (en) * | 2000-08-21 | 2002-02-28 | Saikobo:Kk | Treatment device under different atmosphere |
| US20110127864A1 (en) * | 2009-12-02 | 2011-06-02 | Grundfos Management A/S | Flow production unit |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS505902U (en) * | 1973-05-12 | 1975-01-22 | ||
| JPS5011006A (en) * | 1973-05-29 | 1975-02-04 |
-
1990
- 1990-03-08 JP JP2056928A patent/JP2682187B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS505902U (en) * | 1973-05-12 | 1975-01-22 | ||
| JPS5011006A (en) * | 1973-05-29 | 1975-02-04 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002061892A (en) * | 2000-08-21 | 2002-02-28 | Saikobo:Kk | Treatment device under different atmosphere |
| US20110127864A1 (en) * | 2009-12-02 | 2011-06-02 | Grundfos Management A/S | Flow production unit |
| CN102158044A (en) * | 2009-12-02 | 2011-08-17 | 格伦德福斯管理联合股份公司 | Flow generation unit |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2682187B2 (en) | 1997-11-26 |
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