JPS63263273A - Inner structure of runner boss for straight flow type water turbine - Google Patents
Inner structure of runner boss for straight flow type water turbineInfo
- Publication number
- JPS63263273A JPS63263273A JP62098271A JP9827187A JPS63263273A JP S63263273 A JPS63263273 A JP S63263273A JP 62098271 A JP62098271 A JP 62098271A JP 9827187 A JP9827187 A JP 9827187A JP S63263273 A JPS63263273 A JP S63263273A
- Authority
- JP
- Japan
- Prior art keywords
- runner
- water turbine
- pin
- runner boss
- boss
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 32
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 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
Landscapes
- Hydraulic Turbines (AREA)
Abstract
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Ｍ３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、油圧により廿−
ポ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 M3, the blade shafts 5 of each of the plurality of runner blades 3 are movably supported on the runner boss 4 via a link mechanism 6, and the blade shafts 5 are movably supported by the runner boss 4 via a link mechanism 6.
The ring mechanism 6 is operated by driving the motor.
ランナ羽根３の外周に回転子保持環９を介して回転子２
ａ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ｌで掩われており
、水は矢印の方向に流れランチ羽根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＠
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。The rotor 2 is attached to the outer periphery of the runner blade 3 via the rotor holding ring 9.
a and a stator 2b facing 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 leading end of the water wheel shaft 7 is squeezed by a valve l, and water flows in the direction of the arrow, rotating the launch blades 3, and rotating the rotor. Weight: 3 runner blades, 4 runner bosses, water wheel @
A load is applied to the bearing 8 via 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.
チュ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っている
ため回転中にランナ羽根のがたつきは生じない。一方ス
トレードフロー型水東の場合には回転子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 strained flow type Suito, 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. The shaft repeatedly moves in and out of the gap in the runner boss fitting, which may cause wear or damage to the water wheel shaft or the runner boss fitting.
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軍のランナボス内部構造を提供
するものである。The present invention provides a runner boss internal structure for a straight flow type watercraft that prevents the runner blade 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
車軸心に沿って移動可能なピンと、該ビシを押圧するよ
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、水車軸心に沿って移動可能なピンをば
ねによっ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 with the collars attached is moved inside the runner boss. This acts to push it toward the outer circumference in the radial direction.
以下図面に基いて本発明の詳細な説明する。 The present invention will be described in detail below based on the drawings.
第１図は本発明の実施例によるストレートフロー型水皇
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１
２ａに当接するように相応した傾斜の複数メ＜ざび面１
０ａを有し水車軸心方向に移動可能なピン１゜と、該ピ
ンｌＯ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１１によってピン１０を水
車軸心に沿って押・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。FIG. 1 is a detailed view of the inside of a runner boss showing the internal structure of a straight flow type water jet according to an embodiment of the present invention. In FIG. 1, a plurality of runner blades 3 are movably supported on a blade shaft 5 by a runner boss 4 via a link mechanism 6.
A collar 12 is attached to the end of each of the blade shafts 5 on the water wheel shaft center side.
are attached, and each collar has an inclined surface with respect to the water wheel axis. Furthermore, the inclined surface 1 of each color
A plurality of grooved surfaces 1 with corresponding slopes so as to come into contact with 2a.
A pin 1° having a diameter 0a and movable in the axial direction of the water turbine, and a disc spring 11 fixed to the runner boss 4 so as to press the pin 10 are provided. By pushing and pressing the pin 10 along the shaft center of the water wheel with the disc spring 11, the wedge surface 10a of the pin 10 becomes the inclined surface 12a of the collar 12 attached to the blade shaft.
Press to push the blade shaft 5 into the runner boss toward the outer periphery in the radial direction.
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によって押圧されたピンｌＯを水
車軸心に沿って移動させるので、ピンのくさび面１０ａ
に当接して羽根軸５ヘー
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 generator rotor 2a is absorbed by the runner blades 3, the pin 1O pressed by the spring 11 is moved along the axis of the water turbine. Therefore, the wedge surface 10a of the pin
Push the inclined surface 12a of the collar attached to the blade shaft 5 in the radial direction and push the blade shaft 5 radially outward in the runner boss to tightly press the blade shaft 5 against the fitting part of the runner boss 4 and press the blade shaft 5 in the radial direction. No rattling occurs on the 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：（さび面、１
１：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 the runner boss of a straight flow type water turbine according to an embodiment of the present invention;
The figure is a schematic longitudinal sectional view of a straight flow type water turbine, and FIG. 3 is a detailed view of the inside of the runner boss showing the internal structure of the runner boss of a conventional straight flow type water turbine. 2a: rotor, 2b = stator, 3: runner blade. 4: Runner boss, 5: Vane shaft, 6: Link mechanism. 9: Rotor retaining ring, 10: Pin, 10a: (rust surface, 1
1: Spring, 12: Collar, 12a: Slanted surface.
Claims (1)
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) Straight flow with 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. type water turbine, a collar that 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 wedges having corresponding slopes so as to come into contact with the inclined surfaces of the respective collars. An internal structure of a runner boss for a straight flow type water turbine, comprising a pin having a surface and movable along the axis of the water turbine, and a spring 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 true JPS63263273A (en) | 1988-10-31 |
| JPH041193B2 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) |
Cited By (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
Cited By (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH041193B2 (en) | 1992-01-10 |
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