JPS6118227Y2 - - Google Patents
Info
- Publication number
- JPS6118227Y2 JPS6118227Y2 JP1981126854U JP12685481U JPS6118227Y2 JP S6118227 Y2 JPS6118227 Y2 JP S6118227Y2 JP 1981126854 U JP1981126854 U JP 1981126854U JP 12685481 U JP12685481 U JP 12685481U JP S6118227 Y2 JPS6118227 Y2 JP S6118227Y2
- Authority
- JP
- Japan
- Prior art keywords
- guide vane
- blade
- shaft
- vane
- guide
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000003466 welding Methods 0.000 description 10
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000003746 feather Anatomy 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)
Description
【考案の詳細な説明】
〔考案の利用分野〕
本考案は水力機械の案内羽根に係り、強度改善
された水力機械の案内羽根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 guide vane for a hydraulic machine, and more particularly, to a guide vane for a hydraulic machine with improved strength.
第１図に一般的な水力機械の縦断面を示す。本
考案の対象である水力機械の案内羽根は、符号５
で示されている。第１図の水力機械の主要部分を
示せば、１はスパイラルケーシング、２は水車シ
ヤフト、３はランナー、４は上カバー、５は案内
羽根、６は案内羽根レバー、７は押え板、８は調
整台、１１は案内羽根軸、１２はガイドリング１
３と案内羽根レバー６の間に介在したリンクであ
り、図示しないサーボモータで、ガイドリング１
３を回動操作することにより、リンク１２、案内
羽根レバー６を介して案内羽根軸１１が回動さ
れ、案内羽根５が開あるいは閉方向に操作され
る。
Figure 1 shows a longitudinal section of a typical hydraulic machine. The guide vane of the hydraulic machine which is the subject of this invention is designated by the symbol 5.
is shown. The main parts of the hydraulic machine shown in Figure 1 are as follows: 1 is the spiral casing, 2 is the water wheel shaft, 3 is the runner, 4 is the upper cover, 5 is the guide vane, 6 is the guide vane lever, 7 is the holding plate, and 8 is the Adjustment table, 11 is guide vane shaft, 12 is guide ring 1
3 and the guide vane lever 6, and is a link interposed between the guide ring 1 and the guide vane lever 6.
By rotating 3, the guide vane shaft 11 is rotated via the link 12 and the guide vane lever 6, and the guide vane 5 is operated in the opening or closing direction.
案内羽根５は第２図及び第３図に示すごとく、
２枚の羽根側板２２を対向させ、その間に羽根リ
ブ１４，１５を介在し、これらを溶接することに
よつて、まず案内羽根５の主要部を形成する。そ
の後、２個の案内羽根軸１１を、前記側板２２の
間に挿入し、案内羽根軸付根１６と前記側板２２
を、溶接線１７において溶接する。 The guide vane 5 is as shown in FIGS. 2 and 3.
First, the main part of the guide blade 5 is formed by placing two blade side plates 22 facing each other, interposing the blade ribs 14 and 15 between them, and welding these. Thereafter, the two guide vane shafts 11 are inserted between the side plates 22, and the guide vane shaft root 16 and the side plate 22 are inserted.
are welded at weld line 17.
以上のように製作される案内羽根の問題点は案
内羽根軸付根１６と羽根リブ１４，１５との溶接
がされていなかつたことである。小型の水力機械
や案内羽根に大きな水圧が作用しない水力機械で
は、案内羽根軸付根と羽根リブが溶接されていな
くても、強度的に問題はなかつた。しかし水車や
ポンプ水車などの水力機械においては近時、高落
差、高揚程の要求が強くなつてきている。それに
伴つて案内羽根に作用する水圧も増大し、上記第
２、第３図のような構造では強度的に耐えられな
い恐れがある。このため、第２図に示すように案
内羽根軸付根１６の溶接部分Ｌを長くする等の方
策が考えられているが、溶接量の増大等の問題が
あり、また強度的にも必ずしも満足すべきものと
は言えない。 The problem with the guide vane manufactured as described above is that the guide vane shaft root 16 and the vane ribs 14, 15 are not welded. In small hydraulic machines and hydraulic machines in which large water pressure does not act on the guide vanes, there is no problem in terms of strength even if the guide vane shaft base and the vane rib are not welded. However, in recent years, there has been a growing demand for higher heads and higher heads for hydraulic machines such as water turbines and pump turbines. Along with this, the water pressure acting on the guide vanes also increases, and there is a possibility that the structures shown in FIGS. 2 and 3 will not be able to withstand the strength. Therefore, measures such as lengthening the welded part L of the guide vane shaft root 16 as shown in FIG. It cannot be called a kimono.
また、特公昭昭48−3769号公報には羽根側板の
間に介在された羽根リブの１つが中間リブを介し
て案内羽根軸と一体に固定されていると思われる
ものが示されている。しかしこの公知技術は羽根
リブと中間リブが溶接されているか否か不明であ
り、もし溶接されていなければ前記第２図及び第
３図の技術と全く同様の問題を有する。仮に羽根
リブと中間リブが溶接されているとすると、この
溶接作業は構造上案内羽根軸を羽根側板に溶接す
る以前に行う必要がある。前記溶接作業を行うと
案内羽根軸とほぼ同軸上にある残りの羽根リブと
案内羽根軸との溶接を行うことができない。この
ため案内羽根軸の強度的問題、溶接量が多い等の
問題は依然として残つている。 Further, Japanese Patent Publication No. 1983-3769 discloses a blade in which one of the blade ribs interposed between the blade side plates is thought to be integrally fixed to the guide blade shaft via an intermediate rib. However, in this known technique, it is unclear whether the blade ribs and the intermediate ribs are welded or not, and if they are not welded, the problem is exactly the same as the technique shown in FIGS. 2 and 3. If the blade ribs and intermediate ribs are welded, this welding work must be performed prior to welding the guide blade shaft to the blade side plate due to the structure. If the above-mentioned welding operation is performed, it is impossible to weld the remaining blade ribs, which are substantially coaxial with the guide blade shaft, and the guide blade shaft. Therefore, problems such as the strength of the guide vane shaft and the large amount of welding still remain.
本考案は上記欠点を改善しようとしてなされた
もので、その目的とするところは、強度の高い案
内羽根を得ることにある。
The present invention was made to improve the above-mentioned drawbacks, and its purpose is to obtain a guide vane with high strength.
即ち、本考案の特徴とするところは、２枚の羽
根側板を対向して設け、この２枚の羽根側板の間
には水の流入方向に対してほぼ直角方向に複数の
羽根リブを介在すると共に羽根側板と羽根リブと
を溶接して固定し、かつ、案内羽根を回動操作す
る案内羽根軸の軸端を前記羽根リブの端面と一体
に溶接した水力機械の案内羽根にある。
That is, the feature of the present invention is that two blade side plates are provided facing each other, and a plurality of blade ribs are interposed between the two blade side plates in a direction substantially perpendicular to the direction of water inflow. A guide vane for a hydraulic machine is provided in which a blade side plate and a vane rib are welded and fixed, and the shaft end of a guide vane shaft for rotating the guide vane is integrally welded to the end face of the vane rib.
この構成により、羽根側板に作用する水圧力、
案内羽根軸に作用するねじり力を案内羽根軸と一
体の羽根リブで受けるので案内羽根軸付根部の応
力集中が緩和され、案内羽根の強度が向上する。 With this configuration, water pressure acting on the blade side plate,
Since the torsional force acting on the guide vane shaft is received by the vane rib that is integrated with the guide vane shaft, stress concentration at the root of the guide vane shaft is alleviated, and the strength of the guide vane is improved.
以下本考案の一実施例を第４図及び第５図によ
つて説明する。この実施例も第２図、第３図に示
したものと同じく溶接により製作される案内羽根
に関するものである。案内羽根５は、対向する２
枚の側板２２、その間に介在する羽根リブ１４，
１５、案内羽根軸１１を備え、すべての羽根リブ
１４，５と案内羽根軸１１とが直接、および中間
リブ１８，１９を介してそれぞれ接続される構造
である。この接続は案内羽根軸１１の軸端に中間
リブ１９を予め溶接する。２０は溶接部分であ
る。次に、その案内羽根軸１１を、２枚の羽根側
板２２の間隙部分から差し込み、中間リブ１９と
羽根リブ１５とを溶接する。２１がその溶接部で
ある。次に羽根リブ１４と案内羽根軸１１の軸端
とを中間リブ１８を介して溶接接合する。中間リ
ブ１８は予め案内羽根軸１１の軸端に溶接してお
いてもよいし、しておかなくてもよい。しかし中
間リブ１９は予め溶接しておく方がよい。案内羽
根軸１１を羽根側板２２間に挿入した後に、２０
の部分を溶接するのは困難だからである。
An embodiment of the present invention will be described below with reference to FIGS. 4 and 5. This embodiment also relates to a guide vane manufactured by welding like the ones shown in FIGS. 2 and 3. The guide vanes 5 are opposite to each other.
two side plates 22, a blade rib 14 interposed therebetween,
15, a guide vane shaft 11 is provided, and all the vane ribs 14 and 5 are connected to the guide vane shaft 11 directly and via intermediate ribs 18 and 19, respectively. This connection is made by welding the intermediate rib 19 to the shaft end of the guide vane shaft 11 in advance. 20 is a welded portion. Next, the guide blade shaft 11 is inserted through the gap between the two blade side plates 22, and the intermediate rib 19 and the blade rib 15 are welded together. 21 is the welded part. Next, the blade rib 14 and the shaft end of the guide blade shaft 11 are welded together via the intermediate rib 18. The intermediate rib 18 may or may not be welded to the shaft end of the guide vane shaft 11 in advance. However, it is better to weld the intermediate rib 19 in advance. After inserting the guide vane shaft 11 between the vane side plates 22, 20
This is because it is difficult to weld that part.
本実施例によれば、羽根リブ１４，１５と案内
羽根軸１１間で力を直接に伝達することが出来る
構造となつているので、案内羽根軸１１付根の部
分は応力の集中を受ける部分であるが、羽根側板
２２に作用する水圧力、案内羽根軸１１に作用す
るねじり力の伝達には羽根リブ１４，１５が直
接、あるいは中間リブ１８，１９を介して関与す
る所となり、案内羽根の強度が向上する利点が得
られれる。従来は第２図に示すＬを長くすること
により応力集中の緩和をしていたが、本実施例の
構造であればＬは短くてすみ、溶接量も少なくす
ることができる。 According to this embodiment, the structure is such that force can be directly transmitted between the blade ribs 14, 15 and the guide vane shaft 11, so that the base of the guide vane shaft 11 is a part that receives stress concentration. However, the blade ribs 14 and 15 are involved directly or via the intermediate ribs 18 and 19 in transmitting the water pressure acting on the blade side plate 22 and the torsional force acting on the guide blade shaft 11, and the guide blade This provides the advantage of improved strength. Conventionally, stress concentration was alleviated by lengthening L shown in FIG. 2, but with the structure of this embodiment, L can be shortened and the amount of welding can be reduced.
第６図は本考案の他の実施例を示す。羽根リブ
１５は２つに分割されて、先に案内羽根軸１１の
軸端に溶接接合された後、案内羽根軸１１ととも
に羽根側板２２の間に挿入される。挿入後、羽根
リブ１５は羽根側板２２と接合され、羽根リブと
しての機能を果たすことになる。羽根リブ１４と
案内羽根軸１１の軸端との接合は前述の実施例と
同様である。この実施例では羽根リブ１５につい
て中間リブが省略できるので溶接作業を減少する
ことができる。羽根リブ１５が２つに分割されて
いて強度的に前述の実施例より劣るが、分割部分
は応力の小さい部分なので問題はない。 FIG. 6 shows another embodiment of the invention. The vane rib 15 is divided into two parts, which are first welded to the shaft end of the guide vane shaft 11 and then inserted between the vane side plates 22 together with the guide vane shaft 11 . After insertion, the blade rib 15 is joined to the blade side plate 22 and functions as a blade rib. The connection between the blade rib 14 and the shaft end of the guide blade shaft 11 is the same as in the previous embodiment. In this embodiment, the intermediate rib of the blade rib 15 can be omitted, so that welding work can be reduced. Although the vane rib 15 is divided into two parts and is inferior in strength to the previous embodiment, there is no problem because the divided part is a part with low stress.
本考案によれば、強度の高い水力機械の案内羽
根を提供することができる。また案内羽根軸の羽
根側板間へのさし込み量を短くすることができる
ので、全体としての重量、溶接量を減少すること
ができる。
According to the present invention, it is possible to provide a guide vane for a hydraulic machine with high strength. Furthermore, since the amount of insertion of the guide vane shaft between the blade side plates can be shortened, the overall weight and amount of welding can be reduced.
第１図は一般的な水力機械の縦断面図、第２図
は従来の案内羽根の正面図、第３図は第２図のＡ
−Ａ視図、第４図は本考案案内羽根の一実施例の
正面図、第５図は第４図のＢ部拡大図、第６図は
本考案案内羽根の他の実施例を示す正面図であ
る。
１１……案内羽根軸、２２……羽根側板、１
４，１５……羽根リブ、１８，１９……中間リ
ブ。
Figure 1 is a vertical cross-sectional view of a typical hydraulic machine, Figure 2 is a front view of a conventional guide vane, and Figure 3 is A of Figure 2.
-A view, FIG. 4 is a front view of one embodiment of the guide vane of the present invention, FIG. 5 is an enlarged view of part B of FIG. 4, and FIG. 6 is a front view of another embodiment of the guide vane of the present invention. It is a diagram. 11... Guide vane shaft, 22... Vane side plate, 1
4, 15... Feather rib, 18, 19... Intermediate rib.
Claims (1)
羽根側板の間には水の流入方向に対してほぼ直
角方向に複数の羽根リブを介在すると共に羽根
側板と羽根リブとを溶接して固定し、かつ案内
羽根を回動操作する案内羽根軸の軸端を前記す
べての羽根リブの端面と一体に溶接したことを
特徴とする水力機械の案内羽根。 ２ 羽根リブと案内羽根軸の軸端との間に中間リ
ブを介在したことを特徴とする実用新案登録請
求の範囲第１項記載の水力機械の案内羽根。[Claims for Utility Model Registration] 1. Two blade side plates are provided facing each other, and a plurality of blade ribs are interposed between the two blade side plates in a direction substantially perpendicular to the water inflow direction. and a vane rib are welded and fixed, and the shaft end of a guide vane shaft for rotating the guide vane is integrally welded to the end surfaces of all of the vane ribs. 2. A guide vane for a hydraulic machine according to claim 1 of the utility model registration, characterized in that an intermediate rib is interposed between the vane rib and the shaft end of the guide vane shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981126854U JPS6118227Y2 (en) | 1981-08-26 | 1981-08-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981126854U JPS6118227Y2 (en) | 1981-08-26 | 1981-08-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5757275U JPS5757275U (en) | 1982-04-03 |
| JPS6118227Y2 true JPS6118227Y2 (en) | 1986-06-03 |
Family
ID=29487262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1981126854U Expired JPS6118227Y2 (en) | 1981-08-26 | 1981-08-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6118227Y2 (en) |
-
1981
- 1981-08-26 JP JP1981126854U patent/JPS6118227Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5757275U (en) | 1982-04-03 |
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