JPS6385202A - Blade of axial fluid machinery - Google Patents
Blade of axial fluid machineryInfo
- Publication number
- JPS6385202A JPS6385202A JP22583986A JP22583986A JPS6385202A JP S6385202 A JPS6385202 A JP S6385202A JP 22583986 A JP22583986 A JP 22583986A JP 22583986 A JP22583986 A JP 22583986A JP S6385202 A JPS6385202 A JP S6385202A
- Authority
- JP
- Japan
- Prior art keywords
- blade
- frp
- handle
- metal
- fluid machinery
- 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
- 239000012530 fluid Substances 0.000 title claims abstract description 9
- 229910052751 metal Inorganic materials 0.000 claims abstract description 13
- 239000002184 metal Substances 0.000 claims abstract description 13
- 229920002430 Fibre-reinforced plastic Polymers 0.000 claims abstract description 3
- 239000011151 fibre-reinforced plastic Substances 0.000 claims abstract description 3
- 238000003754 machining Methods 0.000 abstract description 4
- 229920006332 epoxy adhesive Polymers 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 7
- 229910001069 Ti alloy Inorganic materials 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
Landscapes
- Turbine Rotor Nozzle Sealing (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
(産業上の利用分野)
本発明は、軸流流体機械の翼、特に可変翼だおいて、F
FtlP(JJ維強化プラスチック)を用いて製造され
る翼の構造に関する〇
(従来の技術)
軸流流体機械の翼1例えば圧縮機の翼の材料としては、
ステンレス鋼等のFe系合金、A1合金、チタン合金等
が広く用いられる◎軸流圧縮機の動翼においては強い遠
心応力がかかるため、ステンレス鋼等の高強度材料が用
いられ、特に軽量が要求される場合にはチタン合金が用
いられる0また。[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention provides a blade for an axial flow fluid machine, particularly a variable blade.
〇 (Prior art) Regarding the structure of blades manufactured using FtlP (JJ fiber-reinforced plastic) Blades of axial flow fluid machines 1 For example, materials for blades of compressors include:
Stainless steel and other Fe-based alloys, A1 alloys, titanium alloys, etc. are widely used. ◎Since strong centrifugal stress is applied to the rotor blades of axial flow compressors, high-strength materials such as stainless steel are used, and especially light weight is required. In some cases, titanium alloys are used.
静翼においては比較的要求される強度が低いため、A1
合金が用いられることもある0例えば航空工学講座■ジ
ェットエンジン構造M4F174〜PIFIO等には。Since the strength required for stator blades is relatively low, A1
Alloys are sometimes used, for example, in jet engine structures M4F174 to PIFIO.
航空用ガス・タービンエンジンに一般的に用いられる材
料について詳述されている。Materials commonly used in aviation gas turbine engines are detailed.
また、産業用のガス・タービン用圧縮機等では、M量に
対する制約が厳しくなったため、ステンレス鋼等が広く
用いられてきたが、近年、ガス・タービンの大形化・高
効率化に対応する之め、圧縮機低圧段落の翼長が増加す
る傾向にあり、遠心応力を軽減するためにチタン合金や
中空式の導入が進められているようであるが、これらの
方法はいずれも非常に高価である。In addition, in industrial gas turbine compressors, etc., stainless steel and other materials have been widely used because restrictions on the amount of M have become stricter. Therefore, the blade length of the compressor's low-pressure stage is increasing, and titanium alloys and hollow types are being introduced to reduce centrifugal stress, but all of these methods are extremely expensive. It is.
一方、FRPは比強度が高く、軸流圧縮機の翼材料とし
ては非常て魅力的であり、今まで種々実用化への努力が
なされたが、衝撃力に弱いという欠点を肩する@これは
、異物吸入の際に翼の折損という重大事故に至る原因と
な)、このことが航空用ガス・タービン圧縮機材料とし
てFRPが普及しない理由となっている0
FRPの性質としては、高い比強度と衝撃に弱いという
ことの他に、優れた成形性、強度に方向性を与えること
ができる、低コストという長所、使用可能な温度限界が
比較的低い、集中荷重に弱い、機械加工が難しいという
短所が生なものとしてあげられる。軸流ターボ機械にお
いて、このような性質が生かせる分野としては、比較的
低速、低圧力で低温の圧縮機、ファンの翼、充分なフィ
ルタをもつ高速圧縮機の低圧段落の翼等が考えられ、一
部では実用化されているものもある□(発明の解決しよ
うとしている問題点)FRP ’i軸流流体機械の異材
料として用いる場合の問題点としては、その性質を生か
した適用箇所を見極めることの他だ、他の金属部材との
接合方法の問題がある。すなわち、FRPは集中荷重に
弱いため、ボルト、リベット″等による接合が難しく。On the other hand, FRP has a high specific strength and is very attractive as a blade material for axial flow compressors, and although various efforts have been made to put it into practical use, it suffers from the drawback of being weak against impact forces. This is the reason why FRP is not popular as a material for aviation gas turbine compressors.The characteristics of FRP include its high specific strength. In addition to being weak against shock and shock, it has the advantages of excellent formability, ability to give directionality to strength, low cost, relatively low usable temperature limit, weakness to concentrated loads, and difficulty in machining. The shortcomings can be cited as vital. In axial flow turbomachinery, these properties can be utilized in relatively low-speed, low-pressure, low-temperature compressors, fan blades, and low-pressure stage blades of high-speed compressors with sufficient filters. Some of them have been put into practical use □ (Problems to be solved by the invention) The problem when using FRP 'i as a different material for axial flow fluid machinery is to determine where to apply it by taking advantage of its properties. Another problem is how to join it with other metal parts. In other words, since FRP is weak against concentrated loads, it is difficult to join with bolts, rivets, etc.
ダプテー−ル、クリスマス等、従来圧縮機動g<一般的
に用いられていた方法以外ではRを固定することが難し
かったoしかし、これらの方法はいずれも加工に精度を
要し、難しく、高価でら、す、また可変翼への適用が困
難である。It was difficult to fix R using conventional methods such as Daptail, Christmas, etc. However, all of these methods require precision in processing and are difficult and expensive. Also, it is difficult to apply to variable blades.
このため、F’RP製の単独翼を安価に固定する手段、
また、 FRP製翼を可変取付内翼として用いる手段が
望まれていた。For this reason, there is a means to inexpensively fix a single wing made of F'RP.
Additionally, there was a desire for a means to use FRP wings as variable-mount inner wings.
本発明は、金属製の柄部とFRP製の翼部を一体化する
ことによシ、上記従来技術の欠点を改善し、安価で、か
つ可変翼にも適用可能な取付方法をもつFRP製翼を提
供することを目的としている0〔発明の構成〕
c問題点を解決するための手段)
本発明による細流流体機械の翼においては、−般的に機
械加工が困難な形状で、また遠心力やガス力が加わるた
めに、FRPの持つ優れた成形性。The present invention improves the drawbacks of the above-mentioned prior art by integrating a metal handle and an FRP wing. [Structures of the Invention] C. Means for Solving the Problems) The wing for a trickle fluid machine according to the present invention has a shape that is generally difficult to machine, and a centrifugal FRP has excellent formability due to the application of force and gas force.
開化強度、異方性等の特色が生かせる翼部はFRPで製
作し、取付のためのネジ加工や切削加工等の機械加工が
必要で、FRPでは加工が難しい部分は金属で製作して
、これらを一体化した構造としている。The wing parts, which can take advantage of characteristics such as opening strength and anisotropy, are made of FRP, and require machining such as threading and cutting for attachment, and parts that are difficult to process with FRP are made of metal. It has an integrated structure.
(作用)
翼部’i FRPで、柄部を金属で製作することにより
、軽量で強度の高い翼で、しかも圧縮機のロータやケー
シングに機械的に取付ける方法の自由度の高い翼を製作
することができる@可変翼の場合においては、多くの場
合柄部は回転軸となる長柱状の部分をもっておシ、この
部分は軸受と組合せられることが多い0このため、この
部分の径の公差はきびしく通常のFRPでは成形困難で
ある@また、この部分は締結用のネジ部をもつこともあ
るが、これも同様にFRPでは成形困難である。(Function) By making the wing part'i FRP with the handle part made of metal, it is possible to produce a lightweight and strong wing with a high degree of freedom in how it can be mechanically attached to the rotor or casing of the compressor. In the case of variable blades, the handle often has a long column-shaped part that becomes the axis of rotation, and this part is often combined with a bearing. Therefore, the tolerance of the diameter of this part is It is difficult to mold with normal FRP.@Also, this part may have a threaded part for fastening, but this is also difficult to mold with FRP.
一般的に柄部は取付のため多くの凹凸をもしことが多く
、このような所ではFRPでは成形不良を起こしたり、
応力の集中のため極端に弱くなることが考えられる。Generally, the handle part often has many irregularities due to installation, and in such places, FRP may cause molding defects,
It is conceivable that it will become extremely weak due to stress concentration.
本発明による翼では、上述のごとき問題をもつ取付部を
金属で製作するため、このような問題が発生することが
避けられ、 FRPの特質を生かした翼を製作すること
ができる・
(実施例)
以下、図に基づいて本発明の詳細な説明する。In the blade according to the present invention, since the attachment part with the above-mentioned problems is made of metal, such problems can be avoided, and a blade that takes advantage of the characteristics of FRP can be manufactured. (Example) ) Hereinafter, the present invention will be explained in detail based on the drawings.
第1図は、本発明の第一の実施例を示す、5翼有効部1
1位置決めボス6の翼SはF’RPで一体に成形される
。これらの間では断面の変化は比較的ゆるやかであり、
成形上、強度上FRPで製作することによる問題はない
〇一方取付ネジ部3.ベアリング支持部7など旋盤加工
を中心とした機械加工以外では製作が難しい部分をもつ
柄部2は、充分な強度と加工性をもつ金属で製作される
。岡者の間は角度設定の位置決めボス6と、これに対応
して金FA製柄部て設けられたボス穴において組合わさ
れる0両者を強固に固着するために、 FRP及び金属
に対して接着性の優れたエポキシ系接着剤を用いること
は、本発明を有効に活用する一つの方法である。FIG. 1 shows a five-blade effective section 1 showing a first embodiment of the present invention.
The wings S of the first positioning boss 6 are integrally molded with F'RP. Between these, the cross-sectional changes are relatively gradual;
There are no problems with manufacturing from FRP in terms of molding and strength.On the other hand, the mounting screw part 3. The handle portion 2, which includes parts such as the bearing support portion 7 that are difficult to manufacture except by machining mainly using a lathe, is made of metal with sufficient strength and workability. In order to firmly fix the positioning boss 6 for setting the angle and the corresponding boss hole provided in the gold FA handle, adhesive is applied to the FRP and metal. Using an epoxy adhesive with excellent properties is one way to effectively utilize the present invention.
第2図は、本発明の第二の実施例を示す。上記第一の実
施例においては、翼部と柄部を接合するという手間がか
かシ、製作上問題が生じる場合もあシうる。また接着に
よる接合という手段をとった場合1品質管理や強度上で
の問題が生じる場合もある。第一の実施例においてはF
RPと係合する柄部に凹凸が設けてあり、FRPと一体
に成形することにより該凹凸部がFRP Hに埋めこま
れて固着される@したがって成形後の追加工はほとんど
省略でき、かつ強固に翼部と柄部を固定できる。第2図
に示した実施例においては、凹凸として1段付部9とロ
ーレット加工部10が設けてあり、引張方向にも、ねじ
り方向にも充分な強度で固定されるようにしである。FIG. 2 shows a second embodiment of the invention. In the first embodiment, it takes time and effort to join the wing part and the handle part, and problems may arise in manufacturing. Furthermore, if bonding by adhesive is used, problems may arise in terms of quality control and strength. In the first embodiment, F
The handle that engages with the RP has an uneven surface, and by integrally molding it with the FRP, the uneven portion is embedded in the FRP H and is fixed. The wings and handle can be fixed to. In the embodiment shown in FIG. 2, a stepped portion 9 and a knurling portion 10 are provided as the unevenness, and are fixed with sufficient strength both in the tensile direction and in the torsional direction.
以上は、本発明の実施例について述べたのであって1本
発明を限定するものでないことは明らかである@
〔発明の効果〕
本発明は、以上説明したように軸流流体機械の翼部1k
FRPで取付部、柄部を金属で製作して一体化すること
ばより、従来用いられていたFRPのみで構成されてい
た翼に比べて取付だ対する自由度が高く、金属のみで構
成されていた翼にくらべ、軽く、コストが安い翼が提供
でき、また加工工数も削減できる。It is clear that the embodiments of the present invention have been described above, and the present invention is not limited to the present invention.
Since the mounting part and handle part are made of FRP and made of metal and integrated, there is a higher degree of freedom in installation compared to the conventionally used wings that were made only of FRP, and they were made only of metal. It is possible to provide blades that are lighter and cheaper than other blades, and can also reduce the number of processing steps.
M1図は、本発明の第一の実施例の斜視図、第二
2図は本発明の笛室の実施例の斜着視図、第3図は従来
用いられているFRP翼の例の斜視図である0・1・・
・翼有効部、2・・・柄部、3・・・可変静翼回転中心
、4・・・位置決めボス、5・・・翼取付部、6・・・
ベアリング支持部、7・・・取付ネジ部、8・・・可変
リンク取付部、9・・・段付部、10・・・ローレット
加工部、11・・・ダブテール0
代理人 弁理士 則 近 憲 佑
同 竹 花 喜久男
第1図
第2図Figure M1 is a perspective view of the first embodiment of the present invention, Figure 22 is a perspective view of the embodiment of the flute chamber of the present invention, and Figure 3 is a perspective view of an example of a conventionally used FRP blade. The diagram is 0, 1...
・Blade effective part, 2... Handle part, 3... Variable stationary blade rotation center, 4... Positioning boss, 5... Blade attachment part, 6...
Bearing support part, 7...Mounting screw part, 8...Variable link mounting part, 9...Stepped part, 10...Knurling part, 11...Dovetail 0 Agent Patent attorney Nori Chika Yudo Takehana Kikuo Figure 1 Figure 2
Claims (2)
の全部もしくは一部が金属より成ることを特徴とした軸
流流体機械の翼。(1) A wing for an axial flow fluid machine, characterized in that the wing is made of fiber-reinforced plastic, and all or part of the wing handle is made of metal.
凹凸部をもち、この凹凸部が翼部に埋め込まれて成形さ
れていることを特徴とした特許請求の範囲第1項記載の
軸流流体機械の翼。(2) Claim 1, characterized in that the metal portion of the wing handle has an uneven portion near one end surface in the axial direction, and the uneven portion is embedded and molded in the wing portion. The blade of the axial fluid machine described.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22583986A JPS6385202A (en) | 1986-09-26 | 1986-09-26 | Blade of axial fluid machinery |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22583986A JPS6385202A (en) | 1986-09-26 | 1986-09-26 | Blade of axial fluid machinery |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6385202A true JPS6385202A (en) | 1988-04-15 |
Family
ID=16835631
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP22583986A Pending JPS6385202A (en) | 1986-09-26 | 1986-09-26 | Blade of axial fluid machinery |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6385202A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0411295U (en) * | 1990-05-16 | 1992-01-30 | ||
JP2003028096A (en) * | 2001-07-18 | 2003-01-29 | Ishikawajima Harima Heavy Ind Co Ltd | Support device of compressor variable blade |
WO2008107738A1 (en) | 2007-03-06 | 2008-09-12 | Tecsis Tecnologia E Sistemas Avançados Ltda | Fan blade connection |
WO2011114715A1 (en) * | 2010-03-17 | 2011-09-22 | 東京電力株式会社 | Axial flow compressor |
-
1986
- 1986-09-26 JP JP22583986A patent/JPS6385202A/en active Pending
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0411295U (en) * | 1990-05-16 | 1992-01-30 | ||
JP2003028096A (en) * | 2001-07-18 | 2003-01-29 | Ishikawajima Harima Heavy Ind Co Ltd | Support device of compressor variable blade |
WO2008107738A1 (en) | 2007-03-06 | 2008-09-12 | Tecsis Tecnologia E Sistemas Avançados Ltda | Fan blade connection |
US8651816B2 (en) | 2007-03-06 | 2014-02-18 | Fantech Tecnologia Em Sistemas De Ventilacao Ltda | Fan blade connection |
WO2011114715A1 (en) * | 2010-03-17 | 2011-09-22 | 東京電力株式会社 | Axial flow compressor |
JP2011196188A (en) * | 2010-03-17 | 2011-10-06 | Tokyo Electric Power Co Inc:The | Axial flow compressor |
US9188135B2 (en) | 2010-03-17 | 2015-11-17 | Tokyo Electric Power Company, Incorporated | Axial flow compressor |
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