JPS60102829A - Rotor of vertical shaft rotary electric machine - Google Patents
Rotor of vertical shaft rotary electric machineInfo
- Publication number
- JPS60102829A JPS60102829A JP21630184A JP21630184A JPS60102829A JP S60102829 A JPS60102829 A JP S60102829A JP 21630184 A JP21630184 A JP 21630184A JP 21630184 A JP21630184 A JP 21630184A JP S60102829 A JPS60102829 A JP S60102829A
- Authority
- JP
- Japan
- Prior art keywords
- rim
- rotor
- spoke
- projection
- rotor rim
- 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
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
- H02K1/30—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures using intermediate parts, e.g. spiders
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Motor Or Generator Frames (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は回転電機に係り、特に水車発電機などの大形室
軸回転電機の回転子リムの支持構造１こ関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rotating electric machine, and particularly to a support structure 1 for a rotor rim of a large chamber-shaft rotating electric machine such as a water turbine generator.
水車発電機などの犬形立軸回転電機１こおいて従来用い
られている回転子リムの支持構造を第１図ないし第３図
を参照して説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS A rotor rim support structure conventionally used in a dog-shaped vertical shaft rotating electric machine 1 such as a water turbine generator will be described with reference to FIGS. 1 to 3.
図において、主軸（１）にボルトなどで結合されるスポ
ーク（２）の外周には、下端にあご部（３ａ）を有する
リブ（３）が溶接などで固着され、磁極（６）を装着し
た回転子リム（４）は前Ｂｅ ＩＪブ（３）のあご部（
３ａ）によって支持される。通常スポーク（２）は上部
円板（７）と下部円板（８）とこの間を結ぶ複数本のた
て骨（９）とから構成され、前記リブ（３）はたて骨（
９）に当接して取付けられる。In the figure, a rib (3) having a jaw (3a) at the lower end is fixed by welding to the outer periphery of a spoke (2) that is connected to the main shaft (1) with a bolt or the like, and a magnetic pole (6) is attached to the outer circumference of the spoke (2). The rotor rim (4) is attached to the jaw part (3) of the front Be IJ block (3).
3a). Normally, the spokes (2) are composed of an upper disc (7), a lower disc (8), and a plurality of vertical bones (9) connecting them, and the ribs (3) are composed of the vertical bones (
9).
またリプ（３）の外周にはキー溝（１０）が加工され、
回転子リム（４）との間にトルクを伝達するためのキー
（１］）が挿入される。リプ（３）の本数は通常トルク
を伝達するに要するキー圓の本数と同数に選ばれるため
、回転子リム（４）および磁極（６）の重量を支持する
あご部（３ａ）の面圧を材料の降伏点以下にする様、第
２図及び第３図に示す様にリプ（３）の下端の巾Ｌ２や
深さり、を広げるなどの配慮もなされている。In addition, a key groove (10) is machined on the outer periphery of the lip (3),
A key (1]) for transmitting torque is inserted between the rotor rim (4) and the rotor rim (4). The number of lips (3) is normally selected to be the same as the number of key circles required to transmit torque, so the surface pressure on the jaws (3a) that supports the weight of the rotor rim (4) and magnetic poles (6) is reduced. In order to keep the material below the yield point, consideration has been given to increasing the width L2 and depth of the lower end of the lip (3) as shown in FIGS. 2 and 3.
しかしながら上述した従来の構造では回転子リム（４）
が遠心力によって半径方向１こ伸びる場合に、回転子リ
ム（４）とリブ（３）のあご部（３ａ）との接触面で摩
擦力による拘束を受けるため、回転子リム（４）が多角
形状に変形することがあった。％１こ直径が２０ｍに達
する様な大容量水車発電機では運転中の回転子リムの伸
びは直径で１５〜２０ｍ）こ達し、しかもこの様な大直
径機における回転子リム（４）は輸送制限の関係から扇
形状に打抜かれた３、２〜４．５屡の鋼板を並べて環状
となし、所定のピッチずつずらせながら積層した後リー
マスタッドで締結して１体化するいわゆる扇形片積層形
の構造を採用せざるを得ないので、上述の如き多角形状
の変形が生じやすく、回転子と固定子の間のエアギャッ
プが不均一になって′心気的特性に異常をきたしたり、
あるいは回転中に回転子リム（４）とあご部（３ａ）と
の間でスティックスリップを起して不平衡遠心力を生じ
て回転子の過大な軸振れや振動を生ずるなどの欠点が有
った。However, in the conventional structure described above, the rotor rim (4)
When the rotor rim (4) extends one inch in the radial direction due to centrifugal force, the rotor rim (4) becomes polygonal because it is restrained by frictional force at the contact surface between the rotor rim (4) and the jaw (3a) of the rib (3). It could change shape. %1 In large-capacity water turbine generators with a diameter of 20 m, the rotor rim (4) during operation can stretch as much as 15 to 20 m in diameter. Due to restrictions, 3.2 to 4.5 square steel plates punched into a fan shape are lined up to form a ring, stacked at a predetermined pitch and then fastened with reamer studs to form a single unit. This structure tends to cause polygonal deformation as described above, and the air gap between the rotor and stator becomes uneven, resulting in abnormalities in the hypocardial characteristics.
Alternatively, stick-slip may occur between the rotor rim (4) and the jaw portion (3a) during rotation, resulting in unbalanced centrifugal force, resulting in excessive axial wobbling or vibration of the rotor. Ta.
本発明は上述の点に鑑み々されたもので、運転中の回転
子リムの不均一な変形−を防止した信頼性の高い室軸回
転電機の回転子を提供することを目的とする。The present invention has been made in view of the above points, and an object of the present invention is to provide a highly reliable rotor for a chamber-shaft rotating electrical machine that prevents uneven deformation of the rotor rim during operation.
本発明の一実施例を第４図および第５図を参照して説明
する。図中第１図ないし第３図と同一の部品１こは同一
の符号を付して説明を省略する。第４図１こおいて、ス
ポーク（２）は従来と同様−上部円板（７）と下部円板
（ｌのとこの間を結ぶ複数本のたて骨（９）と１こより
構成されたて骨（９）の外径側゛には複数環のリブ（ｌ
■が固着される。下部円板（１２１は従来とは異りその
外直径が回転子リム（４）の内径よりも少し大きく選定
されており突出し部（１２ａ）を形成している。An embodiment of the present invention will be described with reference to FIGS. 4 and 5. In the figure, one component that is the same as that in FIGS. 1 to 3 is given the same reference numeral, and a description thereof will be omitted. In Fig. 4 1, the spokes (2) are the same as before - they are made up of an upper disc (7) and a lower disc (l) with multiple vertebral bones (9) connecting them. On the outer diameter side of the bone (9), there is a plurality of ring ribs (l
■ is fixed. The lower disk (121) is different from the conventional one in that its outer diameter is selected to be slightly larger than the inner diameter of the rotor rim (4), forming a protrusion (12a).
磁極（６）及び回転子リム（４）の重量はこの突出し部
（１２ａ）により円周上一様に連続して支持される構造
となっている。さらに回転子リム（４）の下部１こは端
板（１９が設けられ、かつ端板底面の内径部にけ全周に
わだり凹溝（１５ａ）が設けられている。この凹溝（１
５ａ）には滑り板（１０）が配置され、磁極（６）及び
回転子リム（４）の重量はこの滑り板（ＬＣＤを介して
前記スポーク（２）の下部円板（１りで支持される様に
なっている。The weight of the magnetic pole (6) and rotor rim (4) is supported uniformly and continuously on the circumference by the protrusion (12a). Further, the lower part of the rotor rim (4) is provided with an end plate (19), and a groove (15a) is provided all around the inner diameter part of the bottom of the end plate.
A slide plate (10) is disposed on the slide plate (10), and the weight of the magnetic poles (6) and the rotor rim (4) is supported by the lower disk (10) of the spoke (2) via the slide plate (LCD). It looks like this.
次に作用をこついて述べる。回転子リム（４）および磁
極（６）の重量はスポーク（２）の下部円板（ｌ渇の突
出し部（１２ａ）で円周上はソ一様に支持されているの
で、運転中の回転子リム（４）の接触面で摩擦力が円周
上はソ一様に作用し、回転子リム（４）は円形を保持し
ながら伸び、多角形状の変形を防止することができる。Next, I will explain the effect in detail. The weight of the rotor rim (4) and the magnetic poles (6) is supported evenly on the circumference by the lower disk protrusions (12a) of the spokes (2), so they do not rotate during operation. Frictional force acts uniformly on the circumference on the contact surface of the child rim (4), and the rotor rim (4) stretches while maintaining its circular shape, thereby preventing deformation into a polygonal shape.
又すべり板αｅを介して支持するようにしたので、回転
子リム（４）の伸びに際しては、このすべり板（１６）
の両面のうち表面荒さによる摩擦係数の小さな而で滑る
ようになるから摩擦力の絶対値を実質的に少くすること
が可能である。In addition, since it is supported through the sliding plate αe, when the rotor rim (4) is extended, this sliding plate (16)
The absolute value of the frictional force can be substantially reduced because the coefficient of friction on both surfaces is small due to surface roughness, making it possible to slide.
更１こ滑り板（１６）の摩擦力を一層低減するために、
第６図にがす如く滑り板α０の片面又は両面Ｉこポリテ
トラフルオロチレン（デュポン社商品名テフロン）等の
減摩材α滲を取付けたり、円周上の摩擦力による拘束を
より均一化するために滑り板（ｔｅ）を多数枚重ねて使
用することも可能である。また滑り板（１６１は円周上
に分割されていても支障は無い。Furthermore, in order to further reduce the frictional force of the sliding plate (16),
As shown in Figure 6, an anti-friction material such as polytetrafluoroethylene (trade name: Teflon by DuPont) can be attached to one or both sides of the sliding plate α0 to make the restraint due to the frictional force on the circumference more uniform. It is also possible to use a large number of sliding plates (TE) stacked one on top of the other in order to do so. Furthermore, there is no problem even if the sliding plate (161) is divided on the circumference.
以上述べた如く本発明１こよれば、運転中の回転子リム
の一様な伸びを拘束することなく、振動軸撮れの少ない
安定した運転が得られる信頼性の高い室軸回転電機の回
転子を提供できる。As described above, according to the present invention, a highly reliable rotor for a room-shaft rotating electric machine is provided, which does not restrict the uniform elongation of the rotor rim during operation and provides stable operation with less vibration axis vibration. can be provided.
第１図は従来の立軸水車発？１！機の回転子縦断面図、
第２図は第１図Ｉ−Ｉ矢視に沿った下面図、第３図は第
１図のＡ部を拡大して示した断面図、第４図は本発明の
一実施例を示す室軸水車発電機の回転子縦断面図、第５
図は第４図のＢ部を拡大して示゛した断面図、第６図は
同じく他の実施例を示す拡大断面図である。
１・・・主軸 ２・・・スポーク
３°゛リブ ３ａ・・・リブのあご部
４・・・回転子リム ６・・・磁極
７・・・上部円板 ８・・・下部円板
９・・・補強板（たて骨）１０・・・キー溝１１・・・
キー １２・・・下部円板
１１ａ・・・突出し部 １３・・・リブ１４・・・減摩
材 １５・・・下側端板１５ａ・・・凹溝 １６・・・
滑り板
（７３１７） 代理人 弁理士 則 近 憲 佑 （ほ
か１名）第 １ 図
第２図 第３図
第４図
第５図 第６図Is Figure 1 from a conventional vertical shaft water turbine? 1! Longitudinal cross-sectional view of the rotor of the machine,
2 is a bottom view taken along arrow II in FIG. 1, FIG. 3 is an enlarged sectional view of section A in FIG. 1, and FIG. 4 is a chamber showing an embodiment of the present invention. Longitudinal cross-sectional view of rotor of shaft turbine generator, No. 5
This figure is an enlarged cross-sectional view of part B in FIG. 4, and FIG. 6 is an enlarged cross-sectional view showing another embodiment. 1... Main shaft 2... Spoke 3° rib 3a... Rib jaw 4... Rotor rim 6... Magnetic pole 7... Upper disk 8... Lower disk 9. ... Reinforcement plate (vertical bone) 10 ... Keyway 11 ...
Key 12...Lower disk 11a...Protruding portion 13...Rib 14...Friction reducing material 15...Lower end plate 15a...Concave groove 16...
Sliding board (7317) Agent Patent attorney Kensuke Chika (and 1 other person) Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6
Claims (2)
ークにその外周から突出しかつ円周方向に延びる突出し
部を形成してこの突出し部で支承したことを特徴とする
室軸回転４Ｍの回転子。(1) A rotor with a chamber axis rotation of 4M, characterized in that a rim assembled on the outer periphery of the spokes is supported by a protrusion formed on the spoke that protrudes from the outer periphery and extends in the circumferential direction, and is supported by this protrusion. .
凹溝を設け、この凹溝に配置したすべり板を介して支承
したことを特徴とする特許請求の範囲第１項記載の室軸
回転電機の回転子。(2) A groove extending in the circumferential direction f is provided in the lower end of the inner circumferential side of the rim, and the rim is supported via a sliding plate disposed in the groove. The rotor of the chamber-shaft rotating electric machine described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21630184A JPH0231576B2 (en) | 1984-10-17 | 1984-10-17 | TATEJIKUKAITENDENKINOKAITENSHI |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21630184A JPH0231576B2 (en) | 1984-10-17 | 1984-10-17 | TATEJIKUKAITENDENKINOKAITENSHI |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60102829A true JPS60102829A (en) | 1985-06-07 |
| JPH0231576B2 JPH0231576B2 (en) | 1990-07-13 |
Family
ID=16686379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21630184A Expired - Lifetime JPH0231576B2 (en) | 1984-10-17 | 1984-10-17 | TATEJIKUKAITENDENKINOKAITENSHI |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0231576B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0884452A (en) * | 1994-09-13 | 1996-03-26 | Toshiba Corp | Thrust bearing device |
| US12316177B2 (en) | 2020-12-14 | 2025-05-27 | Electromechanical Engineering Associates, Inc. | Method of repairing a hydrogenerator |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06237849A (en) * | 1993-02-15 | 1994-08-30 | Shimada Kogyo Kk | Illuminated container |
-
1984
- 1984-10-17 JP JP21630184A patent/JPH0231576B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0884452A (en) * | 1994-09-13 | 1996-03-26 | Toshiba Corp | Thrust bearing device |
| US12316177B2 (en) | 2020-12-14 | 2025-05-27 | Electromechanical Engineering Associates, Inc. | Method of repairing a hydrogenerator |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0231576B2 (en) | 1990-07-13 |
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