JPS6020740A - Structure of bearing of rotary electric machine of vertical shaft type - Google Patents
Structure of bearing of rotary electric machine of vertical shaft typeInfo
- Publication number
- JPS6020740A JPS6020740A JP12760183A JP12760183A JPS6020740A JP S6020740 A JPS6020740 A JP S6020740A JP 12760183 A JP12760183 A JP 12760183A JP 12760183 A JP12760183 A JP 12760183A JP S6020740 A JPS6020740 A JP S6020740A
- Authority
- JP
- Japan
- Prior art keywords
- bearing
- end bracket
- disc
- retainer
- bearing holding
- 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
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は、軸上向回転機の上側軸受部の構造に係り、特
に屋外設置の場合に好適な軸上向回転機の上側軸受部の
構造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 structure of an upper bearing part of a shaft-mounted rotating machine, and particularly to a structure of an upper bearing part of a shaft-mounted rotating machine suitable for outdoor installation. It is related to.
従来の軸上向屋外回転機の上側軸受部の防水構造の一例
を第１図に示す。第１図において、１は回転軸、２は上
側軸受、３はエンドブラケットである。回転軸１には、
エンドブラケット３に接近させて回転水切円板４を取付
げである。回転水切円板４とエンドブラケット３との間
にはラビリンス５を形成しである。回転水切円板４にて
振り飛はされた水滴は、エンドブラケット３の周縁部に
設けた複数個の孔６を通って排出されるようにしである
。しかしながら、このような軸受部の構造においては、
下記の問題点がある。FIG. 1 shows an example of the waterproof structure of the upper bearing part of a conventional shaft-mounted outdoor rotating machine. In FIG. 1, 1 is a rotating shaft, 2 is an upper bearing, and 3 is an end bracket. On the rotating shaft 1,
The rotating draining disc 4 is attached close to the end bracket 3. A labyrinth 5 is formed between the rotating draining disc 4 and the end bracket 3. The water droplets shaken off by the rotary draining disc 4 are discharged through a plurality of holes 6 provided at the peripheral edge of the end bracket 3. However, in the structure of such a bearing part,
There are the following problems.
（１）水滴の量が多くなった場合に、排水孔６で抽出し
きれず〜エンドブラケット３の上面にたまり、ラビリン
ス５を通り軸受２部に水が浸入する恐れがある。これを
避ける為に排水孔６の径を犬とし多数設けると、エンド
ブラケット６の強度が低下する。(1) When the amount of water droplets increases, there is a possibility that the water cannot be completely extracted by the drain hole 6 and accumulates on the upper surface of the end bracket 3, and the water may enter the bearing 2 through the labyrinth 5. In order to avoid this, if a large number of drainage holes 6 are provided with a narrow diameter, the strength of the end bracket 6 will be reduced.
（２）構造が複雑で、エンドブラケット３及び回転水切
板４の加工に工数を多く要する。(2) The structure is complicated, and the processing of the end bracket 3 and the rotary drain plate 4 requires a large number of man-hours.
（３）上側軸受の冷却がよくない。(3) The upper bearing is not cooled properly.
本発明の目的は、上側軸受部の防水を完壁にすることが
でき、且つ、上側軸受部の冷却を効果的に行うことがで
きる軸上向回転機の軸受部の構造を提供するにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a structure of a bearing section of an upward rotating machine that can completely waterproof the upper bearing section and effectively cool the upper bearing section. .
本発明による軸上向回転機の軸受部の構造は、上部軸受
保持部をエンドブラケットなり上方に突出させ、該軸受
保持部に接近させて回転軸に回転水切円板を設けると共
に、該軸受保持部より犬なる内径とケーシングより犬謬
Ｖ径の環状板をエンドブラケットと所要の間隙を保って
保持して空間部を形成し、回転水切円板により振り飛ば
された水が該空間部を通って排出されると共に、回転機
の下側に取付けられた外扇よりケーシングに沿って上昇
する冷却風が該空間部を通って該軸受保持部に吹きつけ
られるようにしであることを特徴とする構造である。The structure of the bearing part of the shaft-up rotating machine according to the present invention is such that the upper bearing holding part is protruded upward from the end bracket, and a rotary drainage disc is provided on the rotating shaft close to the bearing holding part, and the bearing holding part is provided with a rotary drainage disc on the rotating shaft. A space is formed by holding an annular plate with an inner diameter larger than the inner diameter and a diameter V larger than the casing with a required gap between the end bracket and the water blown away by the rotating water draining disc through the space. Cooling air is discharged from the rotating machine and rises along the casing from an external fan attached to the lower side of the rotating machine, and is blown onto the bearing holding part through the space. It is a structure.
以下、本発明の実施例を図面に基づいて説明する。第２
図は本発明の軸上向回転機の実施例の縦断面図である。Embodiments of the present invention will be described below based on the drawings. Second
The figure is a longitudinal cross-sectional view of an embodiment of the axially rotating machine of the present invention.
この軸上向回転機においては、回転軸１はエンドブラケ
ット （上部）３より上方に延伸し、図示せざる負荷（
発電機の場合は原動機）に接続されている。エンドブラ
ケット乙の上部軸受２の保持部６Ａは、エンドブラケッ
トの残余の部分より上方に突出している、上部軸受保持
部３Ａより上方に延伸する回転軸１には、軸受保持部３
Ａに接近させて回転水切円板４を取付けである。回転水
切円板４と軸受保持部３Ａとの間には、従来のようなラ
ビリンス構造とはしてない。従って両者の加工は容易で
ある。回転水切円板４の径は軸受保持部６Ａの径より大
きくしておくことが望ましいが、軸受保持部５Ａの径よ
り小さくとも、軸受保持３Ａが残余のエンドブラケット
３の面より上方に突出しているので、軸受保持部３Ａと
回転水切円板４の間より軸受２内に水が進入することが
ない。回転水切円板４の内側に中央部が凹陥する段部４
Ａを設け、軸受保持部３Ａにこれに対応ず凸部６Ｂを設
け、該凸部３Ｂを回転水切円板４の凹陥に遊嵌するよう
にしておけば、軸受２への水の進入はより完全に防止す
ることができ、この為の加工労力は僅かである。In this shaft-upward rotating machine, the rotating shaft 1 extends upward from the end bracket (upper part) 3, and a load (not shown) (
In the case of a generator, it is connected to the prime mover). The holding part 6A of the upper bearing 2 of the end bracket B protrudes upward from the remaining part of the end bracket.
The rotary draining disc 4 is installed close to A. A conventional labyrinth structure is not provided between the rotating draining disk 4 and the bearing holding portion 3A. Therefore, processing of both is easy. It is desirable that the diameter of the rotating draining disc 4 is larger than the diameter of the bearing holding part 6A, but even if it is smaller than the diameter of the bearing holding part 5A, the bearing holding part 3A will not protrude above the surface of the remaining end bracket 3. Therefore, water does not enter into the bearing 2 from between the bearing holding portion 3A and the rotary draining disc 4. A stepped portion 4 whose central portion is recessed inside the rotating draining disk 4
A, and if the bearing holding portion 3A is provided with a corresponding convex portion 6B and the convex portion 3B is loosely fitted into the recess of the rotary draining disc 4, water intrusion into the bearing 2 can be further reduced. This can be completely prevented and requires only a small amount of processing effort.
エンドブラケット３の上側には、内径が軸受保持部３Ａ
の径より犬で、外径がケーシング７の径より犬なる環状
板（フランジ）８が、エンドブラケット３と所要の間隔
を保って、エンドブラケット乙に支板８Ａによって保持
さｈ−エンドブラケット３と環状板８との間に空間部１
０が形成されている。環状板８とエンドブラケット６と
の間隔を、軸受保持部３Ａの突出長と概ね等しくするの
が適当である。On the upper side of the end bracket 3, the inner diameter is 3A.
An annular plate (flange) 8 whose outer diameter is longer than the diameter of the casing 7 is held on the end bracket B by a support plate 8A while maintaining a required distance from the end bracket 3. A space 1 is formed between the annular plate 8 and the annular plate 8.
0 is formed. It is appropriate that the distance between the annular plate 8 and the end bracket 6 be approximately equal to the protruding length of the bearing holding portion 3A.
回転水切円板４上に落下した水滴は回転水切円板４によ
り振り飛ばされて、空間部１ｏを通りＣ方向に排出され
る。回転水切円板４と環状板８の間に落下した水滴も同
じ径路でＣ方向に排出され、回転水切円板４と軸受保持
部３Ａの間を通り、水滴が軸受２部へ進入することはな
い。The water droplets that have fallen onto the rotary draining disk 4 are blown away by the rotating draining disk 4 and are discharged in the direction C through the space 1o. Water droplets that have fallen between the rotating draining disk 4 and the annular plate 8 are also discharged in the C direction along the same path, passing between the rotating draining disk 4 and the bearing holding part 3A, and the water droplets are prevented from entering the bearing 2 part. do not have.
この回転機においては、従来の回転機におけろと同様に
、下側に突出する回転軸１に外扇９が取付けられてあり
、外扇９により生起される冷却風、又はその一部をケー
ソン７に沿って上昇させ、回転機を外側より冷却するよ
うにしである。７Ａは冷却フィンである。この回転機に
おいては、ケーシング７に沿って上昇する冷却風を環状
板８の下面に衝突させて、矢印ＡとＢの方向に分岐させ
、Ｂ方向に向う冷却風を更に軸受保持部３Ａに衝突させ
て、軸受保持部３Ａを冷却するようにしである。In this rotating machine, as in conventional rotating machines, an external fan 9 is attached to the rotating shaft 1 that projects downward, and the cooling air generated by the external fan 9 or a part thereof is It is raised along the caisson 7 to cool the rotating machine from the outside. 7A is a cooling fin. In this rotating machine, the cooling air rising along the casing 7 collides with the lower surface of the annular plate 8 to branch in the directions of arrows A and B, and the cooling air flowing in the direction B further collides with the bearing holding portion 3A. In this way, the bearing holding portion 3A is cooled.
第３図１〜第７図に本発明による軸上向回転様のみより
小さい実施例を示すものである。この実施例においても
、軸受保持部３Ａが残余のエンド第４図は環状板８の下
側に支板８Ａを囲む円筒形の冷風案内板８Ｂを取付けた
実施例を示すものである。このようにすることにより冷
風は入方向には行かなく、すべてＢ方向に流れ（第２図
参照）冷却効率を向上することができる。FIGS. 3 to 7 show an embodiment of the present invention in which only the upward rotation on the axis is smaller. In this embodiment as well, the bearing holding portion 3A remains at the end. FIG. 4 shows an embodiment in which a cylindrical cold air guide plate 8B surrounding the support plate 8A is attached to the lower side of the annular plate 8. By doing so, the cold air does not flow in the inlet direction, but instead flows in the B direction (see FIG. 2), thereby improving the cooling efficiency.
第５図は環状板８の外周縁部を僅かに低くし、円錐面形
とした実施例を示すものである。これにより冷却風を矢
印Ａより矢印Ｂ方向に多く送ることができるので軸受部
の冷却効率を上昇することができる。FIG. 5 shows an embodiment in which the outer peripheral edge of the annular plate 8 is made slightly lower and has a conical shape. As a result, more cooling air can be sent in the direction of arrow B than in the direction of arrow A, so that the cooling efficiency of the bearing can be increased.
第６図は環状板８を高くし、回転水切板４と軸受保持部
３Ａとの間をラビリンス構造とした実施例を示すもので
ある。FIG. 6 shows an embodiment in which the annular plate 8 is made higher and a labyrinth structure is formed between the rotary drain plate 4 and the bearing holding portion 3A.
第７図は環状板８及び支板８Ａがエンドブラケット３と
一体をなして鋳造された実施例を示すものである。FIG. 7 shows an embodiment in which the annular plate 8 and the support plate 8A are integrally cast with the end bracket 3.
本発明の軸上向回転機の軸受部は以上の如く構成され、
上部軸受保持部が上方突出し、上部軸受保持部に接近さ
せて回転軸に回転水切円板を設けであるので、上部軸受
保持部と回転水切円板の間をラビリンス構造としなくと
も、軸受内へ水が進入することがない。また、エンドブ
ラケットよりの排水も十分に行なわれ、エンドブラケッ
ト上に水がたまることがなく、仮にたまったとしても、
軸受保持部が上方に突出しているので、軸受部の防水が
完全である。The bearing portion of the shaft upward rotating machine of the present invention is configured as described above,
Since the upper bearing holder protrudes upward and the rotary drain disc is provided on the rotating shaft in close proximity to the upper bearing holder, there is no need for a labyrinth structure between the upper bearing holder and the rotary drain disc to prevent water from entering the bearing. Never enter. In addition, sufficient drainage from the end brackets prevents water from accumulating on the end brackets, and even if water does accumulate,
Since the bearing holding part protrudes upward, the bearing part is completely waterproof.
また、本発明の回転機では上側軸受保持部を上方に突出
させ、これにケーシングに沿って上昇してくる冷却風を
衝突させるようにしであるので、上側軸受がよく冷却さ
れ、軸受部の温度上昇が低減される。In addition, in the rotating machine of the present invention, the upper bearing holding part is made to protrude upward, and the cooling air rising along the casing is made to collide with this, so that the upper bearing is well cooled and the temperature of the bearing part is reduced. rise is reduced.
更に、軸受保持部と回転水切円板の間をラビリンス構造
とする必要がない等、形状が簡略化され、加工工数を低
減することができる。Furthermore, there is no need to create a labyrinth structure between the bearing holding portion and the rotary water draining disk, and the shape is simplified and the number of processing steps can be reduced.
第１図は従来の軸上向回転機の上部軸受部の一例の縦断
面図、第２図は本発明の軸上向回転機の実施例の縦断面
図、第３図、第４図、第５図、第６図及び第７図は本発
明の軸上向回転機のそれぞれ異なる実施例の上部軸受部
の縦断面図である。FIG. 1 is a vertical sectional view of an example of the upper bearing part of a conventional axially rotating machine, FIG. 2 is a vertical sectional view of an embodiment of the axially rotating machine of the present invention, FIGS. 3 and 4, FIGS. 5, 6, and 7 are longitudinal sectional views of the upper bearing portion of different embodiments of the upward rotating machine of the present invention.
Claims (1)
上方に突出させ、該軸受保持部に接近させて回転軸に回
転水切円板を設げると共に、該軸受保持部より犬なる内
径とケーシングより大なる外径の環状板をエンドブラケ
ットと所要の間隔を保って保持して空間部を形成し、該
回転水切円板により振り飛ばされた水が、該空間部を通
って排出されると共に、回転機の下側に取付けた外扇よ
リケーシングに沿って上昇する冷却風が該空間部を通っ
て該軸受保持部に吹きつけられるようにしであることを
特徴とする軸上向回転機の軸受部の構造。The upper bearing holding part of the shaft-upward rotating machine is made to protrude upward from the end bracket, and a rotary draining disk is provided on the rotating shaft in close proximity to the bearing holding part, and the inner diameter and casing are arranged closer to each other than the bearing holding part. An annular plate having a larger outer diameter is held at a required distance from the end bracket to form a space, through which the water blown off by the rotating drainage disc is discharged and , an axially rotating machine characterized in that cooling air rising along the recasing is blown from an external fan attached to the lower side of the rotating machine through the space and onto the bearing holding part. The structure of the bearing part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12760183A JPS6020740A (en) | 1983-07-15 | 1983-07-15 | Structure of bearing of rotary electric machine of vertical shaft type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12760183A JPS6020740A (en) | 1983-07-15 | 1983-07-15 | Structure of bearing of rotary electric machine of vertical shaft type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6020740A true JPS6020740A (en) | 1985-02-02 |
Family
ID=14964117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12760183A Pending JPS6020740A (en) | 1983-07-15 | 1983-07-15 | Structure of bearing of rotary electric machine of vertical shaft type |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6020740A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63206737A (en) * | 1987-02-24 | 1988-08-26 | Seiko Instr & Electronics Ltd | Image forming sheet |
| JPS6417043A (en) * | 1987-07-10 | 1989-01-20 | Sharp Kk | Photoreceptive sheet |
| CN103401341A (en) * | 2013-07-31 | 2013-11-20 | 东方电气集团东风电机有限公司 | Motor combined hermetically-sealed structure |
| WO2013174400A1 (en) * | 2012-05-23 | 2013-11-28 | Baumüller Nürnberg GmbH | Electrical machine |
| WO2021186787A1 (en) * | 2020-03-16 | 2021-09-23 | 株式会社日立インダストリアルプロダクツ | Rotating electric machine |
-
1983
- 1983-07-15 JP JP12760183A patent/JPS6020740A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63206737A (en) * | 1987-02-24 | 1988-08-26 | Seiko Instr & Electronics Ltd | Image forming sheet |
| JPS6417043A (en) * | 1987-07-10 | 1989-01-20 | Sharp Kk | Photoreceptive sheet |
| WO2013174400A1 (en) * | 2012-05-23 | 2013-11-28 | Baumüller Nürnberg GmbH | Electrical machine |
| CN104335458A (en) * | 2012-05-23 | 2015-02-04 | 包米勒公司 | Electrical machine |
| CN103401341A (en) * | 2013-07-31 | 2013-11-20 | 东方电气集团东风电机有限公司 | Motor combined hermetically-sealed structure |
| WO2021186787A1 (en) * | 2020-03-16 | 2021-09-23 | 株式会社日立インダストリアルプロダクツ | Rotating electric machine |
| JP2021150983A (en) * | 2020-03-16 | 2021-09-27 | 株式会社日立インダストリアルプロダクツ | Rotary electric machine |
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