JPH041193B2 - - Google Patents
Info
- Publication number
- JPH041193B2 JPH041193B2 JP62098271A JP9827187A JPH041193B2 JP H041193 B2 JPH041193 B2 JP H041193B2 JP 62098271 A JP62098271 A JP 62098271A JP 9827187 A JP9827187 A JP 9827187A JP H041193 B2 JPH041193 B2 JP H041193B2
- Authority
- JP
- Japan
- Prior art keywords
- runner
- water turbine
- pin
- boss
- rotor
- 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.)
- Expired - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 29
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、ストレートフロー型水車のランナ
ボス内部構造に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to the internal structure of a runner boss for a straight flow type water turbine.
ストレートフロー型水車は、落差25ｍ程度以下
の低落差大流量の地点に適用される横軸の軸流水
車であり、第２図はストレートフロー型水車の概
略縦断面、第３図は第２図のストレートフロー型
水車のランナボスの内部詳細図である。第２図ま
たは第３図において、ランナボス４に複数のラン
ナ羽根３のそれぞれの羽根軸５がリンク機構６を
介して可動に支持されていて、油圧によりサーボ
モータを駆動してリング機構６を操作している。
A straight flow type water turbine is an axial flow water turbine with a horizontal shaft that is applied to locations with a low head of about 25 m or less and a large flow rate. Fig. 2 is a detailed internal view of the runner boss of the straight flow type water turbine. In FIG. 2 or 3, each blade shaft 5 of a plurality of runner blades 3 is movably supported by a runner boss 4 via a link mechanism 6, and a servo motor is driven by hydraulic pressure to operate a ring mechanism 6. are doing.
ランナ羽根３の外周に回転子保持環９を介して
回転子２ａを取付けていて、回転子２ａに対向し
て固定子２ｂを備えている。水車軸７はランナ羽
根３の前後を軸受８で支持され、水車軸７の先頭
側をバルブ１で掩われており、水は矢印の方向に
流れランナ羽根３を回転させていて、回転子の重
量はランナ羽根３、ランナボス４、水車軸７を経
て軸受８に荷重がかかる。これら羽根軸を回動操
作するため羽根軸とランナボスはめあい部との間
には半径方向に若干の隙間がある。 A rotor 2a is attached to the outer periphery of the runner blade 3 via a rotor holding ring 9, and a stator 2b is provided opposite to the rotor 2a. The water wheel shaft 7 is supported by bearings 8 at the front and rear of the runner blades 3, and the front end of the water wheel shaft 7 is held by a valve 1. Water flows in the direction of the arrow, rotating the runner blades 3, and rotating the rotor. The weight is applied to the bearing 8 via the runner blade 3, runner boss 4, and water wheel shaft 7. In order to rotate these blade shafts, there is a slight gap in the radial direction between the blade shaft and the runner boss fitting portion.
チユーブラ水車の場合には、この隙間が存在し
ていてもランナ回転中の羽根に働く遠心力のため
ランナボス内の各部品は常に外周側に押し付けら
れた状態となつているため回転中にランナ羽根の
がたつきは生じない。一方ストレートフロー型水
車の場合には回転子２ａの重量がランナ羽根３に
かかり、この荷重はランナ羽根の遠心力よりも大
きい場合が多い、このためランナ羽根が一回転す
る毎にランナ羽根軸がランナボスはめあい部の隙
間に出入りを繰り返すことになり水車軸あるいは
ランナボスはめあい部の摩耗あるいは損傷を引き
起すことがある。
In the case of tubular water turbines, even if this gap exists, each part in the runner boss is always pressed against the outer circumference due to the centrifugal force acting on the blades while the runner is rotating, so the runner blades No rattling occurs. On the other hand, in the case of a straight flow type water turbine, the weight of the rotor 2a is applied to the runner blades 3, and this load is often larger than the centrifugal force of the runner blades.Therefore, each rotation of the runner blades causes the runner blade shaft to The water wheel shaft or the runner boss may be worn or damaged because it repeatedly moves in and out of the gap between the runner boss and the runner boss.
この発明は、羽根軸とランナボスはめあい部と
の間に隙間が存在してもランナ羽根３ががたを生
じないようにしたストレートフロー型水車のラン
ナボス内部構造を提供するものである。 This invention provides a runner boss internal structure for a straight flow type water turbine that prevents the runner blades 3 from rattling even if a gap exists between the blade shaft and the runner boss fitting portion.
ランナボスに羽根軸を可動に支持された複数の
ランナ羽根のそれぞれの羽根軸の水車軸心側端部
に取付けられ傾斜面を有するカラーと、前記それ
ぞれのカラーの傾斜面に当接するように相応した
傾斜の複数の当接面を有し水車軸心に沿つて移動
可能なピンと、該ピンを押圧するようにランナボ
スに固定されたばねを設けた。
a plurality of runner blades whose blade shafts are movably supported by the runner boss; a collar having an inclined surface attached to the end of each blade shaft on the water turbine shaft center side; A pin having a plurality of inclined contact surfaces and movable along the axis of the water wheel, and a spring fixed to the runner boss so as to press the pin were provided.
本発明によれば、水車軸心に沿つて移動可能な
ピンをばねによつて押圧することにより、ピンの
くさび面と当接する複数のカラーを半径方向に移
動させ、カラーを取付けた羽根軸をランナボス内
で半径方向外周側に押し込む作用をする。
According to the present invention, by pressing a pin movable along the axis of the water turbine with a spring, a plurality of collars in contact with the wedge surface of the pin are moved in the radial direction, and the blade shaft to which the collars are attached is moved. It acts to push radially outward within the runner boss.
以下図面に基いて本発明の実施例を説明する。
第１図は本発明の実施例によるストレートフロー
型水車のランナボス内部構造を示すランナボス内
部詳細図である。第１図において、複数のランナ
羽根３はランナボス４にリンク機構６を介して羽
根軸５を可動に支持され、前記それぞれの羽根軸
５の水車軸心側端部にカラー１２が取付けられ、
それぞれのカラーには水車軸心に対し傾斜面を有
する。さらに前記それぞれのカラーの傾斜面１２
ａに当接するように相応した傾斜の複数のくざび
面１０ａを有し水車軸心方向に移動可能なピン１
０と、該ピン１０を押圧するようにランナボス４
に固定された皿ばね１１を設けている。皿ばね１
１によつてピン１０を水車軸心に沿つて押圧する
ことによりピン１０のくさび面１０ａは羽根軸に
取付けたカラー１２の傾斜面１２ａを押し、羽根
軸５をランナボス内で半径方向外周側に押し込
む。
Embodiments of the present invention will be described below based on the drawings.
FIG. 1 is a detailed internal view of the runner boss showing the internal structure of the runner boss of a straight flow type water turbine according to an embodiment of the present invention. In FIG. 1, a plurality of runner blades 3 are movably supported by a blade shaft 5 on a runner boss 4 via a link mechanism 6, and a collar 12 is attached to the end of each blade shaft 5 on the water turbine axis side.
Each collar has an inclined surface with respect to the turbine axis. Furthermore, the inclined surface 12 of each color
A pin 1 that is movable in the direction of the axis of the water turbine and has a plurality of wedge surfaces 10a with corresponding inclinations so as to come into contact with a.
0 and the runner boss 4 so as to press the pin 10.
A disc spring 11 fixed to the plate spring 11 is provided. Belleville spring 1
1 pushes the pin 10 along the water turbine axis, the wedge surface 10a of the pin 10 pushes the inclined surface 12a of the collar 12 attached to the blade shaft, and the blade shaft 5 is moved radially outward within the runner boss. Push it in.
本発明によれば、ストレートフロー型水車のラ
ンナ羽根３が回転し発電機の回転子２ａの重量が
ランナ羽根３にかかつても、ばね１１によつて押
圧されたピン１０を水車軸心に沿つて移動させる
ので、ピンのくさび面１０ａに当接して羽根軸５
に取付けたカラーの傾斜面１２ａを半径方向に押
し羽根軸５をランナボス内で半径方向外周側に押
し込んで羽根軸５をランナボス４のはめあい部に
緊密に押し当て羽根軸５にがたを生じない。
According to the present invention, even when the runner blades 3 of the straight flow type water turbine rotate and the weight of the rotor 2a of the generator is applied to the runner blades 3, the pin 10 pressed by the spring 11 is moved along the axis of the water turbine. Since the pin is moved by the pin, the blade shaft 5 comes into contact with the wedge surface 10a of the pin.
Push the sloped surface 12a of the collar attached to the runner radially and push the blade shaft 5 radially outward in the runner boss to tightly press the blade shaft 5 to the fitting part of the runner boss 4 without causing any play in the blade shaft 5. .
第１図は本発明の実施例によるストレートフロ
ー型水車のランナボス内部構造を示すランナボス
内詳細図、第２図はストレートフロー型水車の概
略縦断図、第３図は従来例によるストレートフロ
ー型水車のランナボス内部構造を示すランナボス
内詳細図である。
２ａ：回転子、２ｂ：固定子、３：ランナ羽
根、４：ランナボス、５：羽根軸、６：リンク機
構、９：回転子保持環、１０：ピン、１０ａ：く
さび面、１１：ばね、１２：カラー、１２ａ：傾
斜面。
Fig. 1 is a detailed view of the inside of the runner boss showing the internal structure of a straight flow type water turbine according to an embodiment of the present invention, Fig. 2 is a schematic vertical sectional view of the straight flow type water turbine, and Fig. 3 is a diagram of a conventional straight flow type water turbine. FIG. 3 is a detailed view of the inside of the runner boss showing the internal structure of the runner boss. 2a: rotor, 2b: stator, 3: runner blade, 4: runner boss, 5: blade shaft, 6: link mechanism, 9: rotor holding ring, 10: pin, 10a: wedge surface, 11: spring, 12 : Color, 12a: Slanted surface.
Claims (1)
のランナ羽根と、前記ランナ羽根の外周に回転子
保持環を介して取付けた回転子と、前記回転子に
対向する固定子を備えたストレートフロー型水車
において、前記それぞれの羽根軸の水車軸心側端
部に取付けられ水車軸心に対し傾斜面を有するカ
ラーと、前記それぞれのカラーの傾斜面に当接す
るように相応した傾斜の複数のくさび面を有し水
車軸心に沿つて移動可能なピンと、該ピンを押圧
するようにランナボスに固定されたばねを設けた
ことを特徴とするストレートフロー型水車のラン
ナボス内部構造。1 A straight flow type comprising a plurality of runner blades whose blade shafts are movably supported by a runner boss, a rotor attached to the outer periphery of the runner blade via a rotor holding ring, and a stator facing the rotor. In a water turbine, a collar is attached to the end of each of the blade shafts on the water wheel shaft center side and has an inclined surface with respect to the water wheel shaft center, and a plurality of wedge surfaces with corresponding slopes so as to come into contact with the inclined surfaces of the respective collars. A runner boss internal structure for a straight flow type water turbine, characterized in that a pin is movable along the axis of the water turbine, and a spring is fixed to the runner boss so as to press the pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62098271A JPS63263273A (en) | 1987-04-21 | 1987-04-21 | Inner structure of runner boss for straight flow type water turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62098271A JPS63263273A (en) | 1987-04-21 | 1987-04-21 | Inner structure of runner boss for straight flow type water turbine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63263273A JPS63263273A (en) | 1988-10-31 |
| JPH041193B2 true JPH041193B2 (en) | 1992-01-10 |
Family
ID=14215277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62098271A Granted JPS63263273A (en) | 1987-04-21 | 1987-04-21 | Inner structure of runner boss for straight flow type water turbine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63263273A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7008170B2 (en) | 2004-03-26 | 2006-03-07 | Siemens Westinghouse Power Corporation | Compressor diaphragm with axial preload |
| US7758307B2 (en) | 2007-05-17 | 2010-07-20 | Siemens Energy, Inc. | Wear minimization system for a compressor diaphragm |
-
1987
- 1987-04-21 JP JP62098271A patent/JPS63263273A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63263273A (en) | 1988-10-31 |
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