JPH03127645A - Centrifuge - Google Patents
CentrifugeInfo
- Publication number
- JPH03127645A JPH03127645A JP26671389A JP26671389A JPH03127645A JP H03127645 A JPH03127645 A JP H03127645A JP 26671389 A JP26671389 A JP 26671389A JP 26671389 A JP26671389 A JP 26671389A JP H03127645 A JPH03127645 A JP H03127645A
- Authority
- JP
- Japan
- Prior art keywords
- motor housing
- housing
- friction
- centrifuge
- steady rest
- 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
- 238000004381 surface treatment Methods 0.000 claims abstract description 5
- 239000000314 lubricant Substances 0.000 claims description 2
- 230000002159 abnormal effect Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 2
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
Landscapes
- Centrifugal Separators (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は、遠心機の異常振動時の振れ止め部材に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a steady rest member during abnormal vibration of a centrifuge.
遠心機は移動しやすくするため床に固定せず、ゴム足な
どの弾性体やキャスタを用いて、床や机の上に設置する
ものが多い。To make it easier to move, centrifuges are often not fixed to the floor, but are installed on the floor or desk using elastic bodies such as rubber feet or casters.
従来、モータハウジング周囲に振れ止め部材を有する遠
心機において、振れ止め部材は異常振動時にモータハウ
ジングが接触することにより、振れまわり振動の振幅を
抑える働きをする。この時、モータハウジングが振れま
わっている状態で、モータハウジングと振れ止め部材が
接触すると摩擦力により、遠心機本体を回転移動させる
力が生じる。床に固定Ｕていない遠心機の場合、前記摩
擦力による回転移動力で本体が動かされる。この時操作
者などが近くにいると怪我等の危険性がある。また、設
置場所が机上の場合、本体が動くことにより落下する危
険性がある。Conventionally, in a centrifugal machine having a steady rest around a motor housing, the steady rest functions to suppress the amplitude of whirling vibrations when the motor housing comes into contact with the steady rest during abnormal vibrations. At this time, when the motor housing and the steady rest member come into contact with each other while the motor housing is swinging around, a force that rotates the centrifuge body is generated due to frictional force. In the case of a centrifuge that is not fixed to the floor, the main body is moved by the rotational movement force caused by the frictional force. If the operator is nearby at this time, there is a risk of injury. Additionally, if the device is installed on a desk, there is a risk of it falling if the device moves.
本発明の目的は、上記した従来技術の欠点をなくシ、遠
心機の運転を安全に行なうことを目的としたものである
。An object of the present invention is to eliminate the above-mentioned drawbacks of the prior art and to operate a centrifuge safely.
本発明は、モータハウジングの周りの空間を狭くし、異
常振動の振れる空間を小さくすることにより振幅が小さ
くなること。また異常振動時に空間を狭くした部材とモ
ータハウジングが接触したとき、この間の！！ａ擦が大
きい場合遠心機本体が回転してしまう、などの摩擦と本
体の回転移動の関係に着目し、空間を狭くした部材とモ
ータハウジングとの摩擦の関係を工夫したものである。The present invention reduces the amplitude by narrowing the space around the motor housing and reducing the space in which abnormal vibrations occur. Also, when the motor housing comes into contact with the member that narrows the space during abnormal vibrations, the between! ! Focusing on the relationship between friction and the rotational movement of the centrifuge body, such as the fact that if the a friction is large, the centrifuge body rotates, the relationship between the friction between the narrow space member and the motor housing has been devised.
以下、図示実施例により本発明を説明する。第１図は本
発明の一実施例である。先ずその主要要素の構成につい
て述べると１図において１は、モータハウジングである
。２は、遠心機の筐体である。３は、遠心機の筐体２に
固定されモータハウジング１を支持するモータ支持材で
ある。４は。The present invention will be explained below with reference to illustrated embodiments. FIG. 1 shows an embodiment of the present invention. First, the configuration of its main elements will be described. In FIG. 1, 1 is a motor housing. 2 is a housing of the centrifuge. Reference numeral 3 denotes a motor support member that is fixed to the casing 2 of the centrifuge and supports the motor housing 1. 4 is.
モータ支持材３とモータハウジング１の間に介在し、モ
ータハウジング１を支持しかつ、モータハウジングｌと
遠心機の筐体２を振動絶縁する支持弾性体である。５は
、分離する試料を入れるロータである。６はモータの回
転力をロータ５に伝達するシャフトである。７は、モー
タハウジング１の周囲の空間を狭くしかつモータハウジ
ング１との摩擦が小さい振れ止め部材である。It is a support elastic body that is interposed between the motor support member 3 and the motor housing 1, supports the motor housing 1, and provides vibration isolation between the motor housing 1 and the centrifuge casing 2. 5 is a rotor into which the sample to be separated is placed. 6 is a shaft that transmits the rotational force of the motor to the rotor 5. 7 is a steady rest member that narrows the space around the motor housing 1 and has low friction with the motor housing 1.
次に１本発明の動作及び作用について詳述するロータ５
を回転させ試料を分離させる場合、試料の入れ方により
不釣合の場合がある。このときモータハウジング１は、
支持弾性体４で動くことが可能なためシャフト６の微小
の振れまわりの振動に合わせて振れまわり振動をしてい
る。この状態において外部から大きな励振力がモータ部
に働いた場合、モータ部は大きな振れまわり振動、いわ
ゆる異常振動が起きる。Next, the operation and effect of the present invention will be described in detail.
When rotating the sample to separate the sample, imbalance may occur depending on how the sample is placed. At this time, the motor housing 1 is
Since it can be moved by the support elastic body 4, it whirls around and vibrates in accordance with the minute whirling vibrations of the shaft 6. When a large excitation force is applied to the motor section from the outside in this state, large whirling vibrations, so-called abnormal vibrations occur in the motor section.
ここで、振れまわりの振幅が大きい場合、振れ止め部材
７にぶつかるまでになる。ぶつかった場合モータハウジ
ング１との摩擦により筐体を回転移動させる力が生じる
。この摩擦を小さくすることにより遠心機の筐体２を動
かす力も小さくなり、異常振動による遠心機の筐体２の
回転移動を抑えることが可能となる。Here, if the amplitude of the swing is large, it reaches the point where it hits the steady rest member 7. In the event of a collision, friction with the motor housing 1 generates a force that rotates the housing. By reducing this friction, the force that moves the centrifuge casing 2 is also reduced, making it possible to suppress rotational movement of the centrifuge casing 2 due to abnormal vibrations.
第３図は本発明の変形例を示す縦断面側面図で、第４図
は第３図のｂ−ｂＷＲ面図である。これら第３図、第４
図に示すごとく振れ止め部材としてモータ支持材３が、
モータハウジング１との空間を狭くしかつモータハウジ
ング１との摩擦を表面処理を行い少なくしたものを用い
ても良い。また、どちらか一方か両方に、＊擦を少なく
するために表面の凹凸をすくなくする加−Ｌをしても良
い。FIG. 3 is a longitudinal sectional side view showing a modification of the present invention, and FIG. 4 is a b-bWR plane view of FIG. 3. These figures 3 and 4
As shown in the figure, a motor support member 3 is used as a steady rest member.
It is also possible to use one in which the space with the motor housing 1 is narrowed and the friction with the motor housing 1 is reduced by surface treatment. Further, one or both may be subjected to an addition L to reduce surface irregularities in order to reduce chafing.
第５図は本発明の変形例を示す縦断面側面図で、第６図
は第５図のｃ−ｃ断面図である。これら第５図、第６図
に示すごとく振れ止め部材として支持弾性体４が、モー
タハウジング１との空間を狭くしかつモータハウジング
１との摩擦をフッソ樹脂コーティング等の表面処理を行
い少なくしたものを用いても良い。FIG. 5 is a vertical cross-sectional side view showing a modification of the present invention, and FIG. 6 is a cross-sectional view taken along line CC in FIG. As shown in FIGS. 5 and 6, the support elastic body 4 is used as a steady rest member to narrow the space between it and the motor housing 1 and to reduce friction with the motor housing 1 by applying a surface treatment such as fluorocarbon resin coating. You may also use
第７図は本発明の変形例を示す縦断面側面図で、第８図
は第７図のｄ−ｄ断面図である。これら第７図、第８図
に示すごとく振れ止め部材として遠心機の筐体２が、モ
ータハウジングｌとの空間を狭くしかっモータハウジン
グ１との摩擦を表面処理を行い少なくしたものを用いて
も良い。また、どちらか一方か両方に、摩擦を少なくす
るために表面の凹凸をすくなくする加工をしても良い。FIG. 7 is a longitudinal cross-sectional side view showing a modification of the present invention, and FIG. 8 is a cross-sectional view taken along line dd in FIG. 7. As shown in FIGS. 7 and 8, it is also possible to use a centrifuge housing 2 as a steady rest member with a narrow space between it and the motor housing 1 and a surface treatment to reduce friction with the motor housing 1. good. Further, one or both may be processed to reduce surface irregularities in order to reduce friction.
次に第９図は本発明の変形例を示す縦断面側面図で第１
０図は第９図のｅ−ｅ断面図である。第９図、第１０図
に示すごとくモータ支持材３や支持弾性体４や遠心機の
筐体２等と、単独もしくは複数でモータハウジング１と
接触するときに、フッソ樹脂、ポリアミド樹脂、ポリイ
ミド樹脂などの潤滑材８を介在させ摩擦を少なくしかつ
すきまを狭くしてもよい。Next, FIG. 9 is a vertical cross-sectional side view showing a modification of the present invention.
0 is a sectional view taken along line ee in FIG. 9. As shown in FIGS. 9 and 10, when the motor support material 3, support elastic body 4, centrifuge housing 2, etc. come into contact with the motor housing 1, singly or in combination, fluorocarbon resin, polyamide resin, polyimide resin, etc. A lubricant 8 such as the like may be interposed to reduce friction and narrow the gap.
以上のように本発明によれば、振れまわり振動が大きく
なったときでも遠心機本体を動かすことなく安全に異常
な振れまわり振動を抑えることができるものである。As described above, according to the present invention, even when whirling vibration becomes large, abnormal whirling vibration can be safely suppressed without moving the centrifuge body.
第を図は本発明になる遠心機の一実施例を示す縦断面側
面図、第２図は第１図のａ−ａ断面図である０図におい
て、１はモータハウジング、２は遠心機筐体、３はモー
タ支持材、４は支持弾性体、５はロータ、６はシャツ１
−１７は振れ止め部材である。
才
田
す
記
才子図
才ｒｒＡ
オｌ（２１
す
γ
才
ざ
閏
才ｑ図
すｌＯの
手続補正書（方式）
事件の表示
平成
１年特許願第２６６７１３号
発明の名称
遠
機
補正をする者
事件との関係Figure 1 is a vertical cross-sectional side view showing one embodiment of the centrifuge according to the present invention, and Figure 2 is a cross-sectional view taken along the a-a line in Figure 1. In Figure 0, 1 is a motor housing, and 2 is a centrifuge housing. body, 3 is a motor support material, 4 is a support elastic body, 5 is a rotor, 6 is a shirt 1
-17 is a steady rest member. Suki Saita Saiko Zuzai rrA Orl (21 Suγ Saizajyuzaiq Zusu IO procedural amendment (method) Display of the case 1999 Patent Application No. 266713 Name of the invention The case of a person making a telescope amendment connection of
Claims (1)
器を高速で回転駆動させるモータがシャフトにより接続
しており、モータのハウジングが筐体より支持弾性体を
介在して取付けられ、モータハウジングと筐体の間に振
れ止め部材を有する遠心機において、モータハウジング
と振れ止め部材間の摩擦を少なくしたことを特徴とした
遠心機。 ２、モータハウジングおよび振れ止め部材のどちらか、
もしくは両方に摩擦を少なくする表面処理を行ったこと
を特徴とする特許請求範囲第１項記載の遠心機。 ３、モータハウジングと振れ止め部材間の摩擦を少なく
するため、モータハウジングと振れ止め部材間に、もし
くはモータハウジングか、振れ止め部材に潤滑材を用い
たことを特徴とする特許請求範囲第１項記載の遠心機。 ４、モータハウジングと振れ止め部材間のすきまを狭く
したことを特徴とする特許請求範囲第１項記載の遠心機
。[Claims] 1. A rotating container into which a sample is placed and separated is connected by a shaft to a motor that rotates the rotating container at high speed, and the housing of the motor is connected to the housing with an elastic supporting body interposed therebetween. What is claimed is: 1. A centrifuge that is mounted on a motor housing and has a steady rest member between a motor housing and a casing, the centrifuge being characterized in that friction between the motor housing and the steady rest member is reduced. 2. Either the motor housing or the steady rest member,
The centrifuge according to claim 1, wherein one or both of the centrifuges are subjected to surface treatment to reduce friction. 3. Claim 1, characterized in that a lubricant is used between the motor housing and the steady rest member, or on the motor housing or the steady rest member, in order to reduce the friction between the motor housing and the steady rest member. Centrifuge as described. 4. The centrifuge according to claim 1, characterized in that the gap between the motor housing and the steady rest member is narrowed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26671389A JPH03127645A (en) | 1989-10-14 | 1989-10-14 | Centrifuge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26671389A JPH03127645A (en) | 1989-10-14 | 1989-10-14 | Centrifuge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03127645A true JPH03127645A (en) | 1991-05-30 |
Family
ID=17434648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26671389A Pending JPH03127645A (en) | 1989-10-14 | 1989-10-14 | Centrifuge |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03127645A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010036051A (en) * | 2008-07-31 | 2010-02-18 | Hitachi Koki Co Ltd | Centrifugal separator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5111482B2 (en) * | 1974-08-07 | 1976-04-12 | ||
| JPS5257481U (en) * | 1975-10-24 | 1977-04-26 | ||
| JPS5814956B2 (en) * | 1979-07-19 | 1983-03-23 | 日本鋼管継手株式会社 | Manufacturing method of cast pipe fittings |
-
1989
- 1989-10-14 JP JP26671389A patent/JPH03127645A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5111482B2 (en) * | 1974-08-07 | 1976-04-12 | ||
| JPS5257481U (en) * | 1975-10-24 | 1977-04-26 | ||
| JPS5814956B2 (en) * | 1979-07-19 | 1983-03-23 | 日本鋼管継手株式会社 | Manufacturing method of cast pipe fittings |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010036051A (en) * | 2008-07-31 | 2010-02-18 | Hitachi Koki Co Ltd | Centrifugal separator |
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