JPS62225702A - Multi-row rotor blade and manufacture thereof - Google Patents
Multi-row rotor blade and manufacture thereofInfo
- Publication number
- JPS62225702A JPS62225702A JP6852186A JP6852186A JPS62225702A JP S62225702 A JPS62225702 A JP S62225702A JP 6852186 A JP6852186 A JP 6852186A JP 6852186 A JP6852186 A JP 6852186A JP S62225702 A JPS62225702 A JP S62225702A
- Authority
- JP
- Japan
- Prior art keywords
- blade
- blades
- rotor blade
- cross
- row
- 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
- 238000004519 manufacturing process Methods 0.000 title 1
- 238000000034 method Methods 0.000 claims description 10
- 238000003754 machining Methods 0.000 claims description 9
- 238000007493 shaping process Methods 0.000 abstract 2
- 239000007788 liquid Substances 0.000 abstract 1
- 238000003672 processing method Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000009760 electrical discharge machining Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001595 flow curve Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Landscapes
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は円筒の軸線方向に沿って多列に配設されると共
に、傾４角度を形成しながら放射状に伸延して形成され
る羽根群を有する多列ロータ翼とその加工方法に係り、
特に多様な輪郭形状から形成され得る羽根を有する多列
ロータ翼と前記多様な輪郭形状の羽根を短時間に、かつ
高精度に加工するに好適な加工方法に関するものである
。Detailed Description of the Invention: Industrial Application Field The present invention has a group of blades arranged in multiple rows along the axial direction of a cylinder and extending radially while forming four inclined angles. Regarding multi-row rotor blades and their processing method,
In particular, the present invention relates to a multi-row rotor blade having blades that can be formed with various contour shapes, and a processing method suitable for machining blades with the various contour shapes in a short time and with high precision.
従来の技術
第９図に示す如く、多列ロータ児１は中心軸（図示せず
）の挿着される中心穴２を有する円筒体から形成され、
軸線方向に沿って多列に、かつ各列毎に＃Ｉ！１角度を
形成しながら放射状に伸延するＷ根３群から形成される
。BACKGROUND OF THE INVENTION As shown in FIG. 9, a multi-row rotor element 1 is formed of a cylindrical body having a central hole 2 into which a central shaft (not shown) is inserted.
#I in multiple rows along the axial direction, and in each row! It is formed from three groups of W roots extending radially while forming one angle.
前記形状の多列ロータ大１は、例えば第１０図に示す如
く、ケーシング４内に中心軸５により回転可使に収納さ
れ、吸入口６側から空気等の流体又は混合物を吸入し、
排気ロア側に排出する如き装とに使用される。The large multi-row rotor 1 having the above-mentioned shape is rotatably housed in a casing 4 around a central shaft 5, as shown in FIG.
Used for equipment that discharges air to the exhaust lower side.
多列ロータ翼１の羽根３は第１１図にも示す如く、類語
角度αで円周方向に配列される。なお傾。The blades 3 of the multi-row rotor blade 1 are arranged in the circumferential direction at a synonymous angle α, as also shown in FIG. In addition, it is tilted.
斜角度は各列で相異なる場合もある。The oblique angle may be different for each row.
発明が解決しようとする問題点
多列ロータｙｉｌの羽根３は密接して配設され、かつ前
記の如く傾斜角度α等を有する存め、この加工は容易で
なく、従来は放電加工によるもの及び各列ごとに分割形
成し、加工後にこれを端型組立して第８図の如き形状に
組み上げる分離構造のものが採用されていた。放電加工
によるものは極めて多くの時間を要する問題点があると
共に、羽根３の断面輪郭形状が限定されたり、仕上り面
が悪くなる欠点や羽根３の放射方向に沿う断面輪郭形状
を可変に形成し得ない欠点等があった。また分離構造の
ものは組立作業に多く０時間を要すると共に、品質面１
強度面において一体形状のものに劣る問題点があった。Problems to be Solved by the Invention Since the blades 3 of the multi-row rotor yil are closely arranged and have an inclination angle α as described above, this machining is not easy, and conventionally, machining has been performed by electric discharge machining or A separate structure was adopted in which each row was divided and formed, and after processing, the end molds were assembled to form the shape shown in FIG. 8. Electrical discharge machining has the problem of requiring an extremely large amount of time, and also has the disadvantage that the cross-sectional contour shape of the blade 3 is limited, resulting in a poor finished surface, and the cross-sectional contour shape of the blade 3 along the radial direction is variable. There were some disadvantages that I could not get. Separate structures require a lot of time to assemble, and the quality is poor.
There was a problem that it was inferior to the one-piece type in terms of strength.
一方、多列口°−タ＠ｉの羽根３の形状は性能向上の面
から多様のものが要求されるが、前記の如〈従来技術で
はこの要請に°対応できない状態に有った。また多様形
状の羽根３を比較的短時間で加工し得る加工方法も創案
されず問題点とされていた。On the other hand, various shapes of the blades 3 of the multi-row aperture heater are required from the viewpoint of performance improvement, but as mentioned above, the conventional technology has not been able to meet this requirement. Further, a processing method capable of processing blades 3 of various shapes in a relatively short period of time has not been devised, which has been considered a problem.
本発明は前記問題点、欠点等を解決せんとするもので、
多列ロータ翼の羽根を所望の多様形状に形成し、吸入効
率を向上すると共に、一体重に形成される多列ロータ翼
を提供し、かつ前記輪郭形状を有する羽根を短時間及び
高品質に加工し得る多列ロータとその加工方法を提供す
ることにある。The present invention aims to solve the above-mentioned problems, drawbacks, etc.
To improve suction efficiency by forming the blades of a multi-row rotor blade into various desired shapes, to provide a multi-row rotor blade that is formed into a single piece, and to produce the blades having the above contour shape in a short time and with high quality. An object of the present invention is to provide a multi-row rotor that can be processed and a method for processing the same.
問題点を解決するための手段
本発明はこのために、円筒状に形成され、その軸線方向
に沿って多列に配設されると共に放射状に伸延して形成
される羽根群の各羽根の断面形状を直線又は流曲線の輪
郭から形成せしめると共に前記放射方向に沿う前記羽根
の前記断面形状を一定又は可変に形成してなる多列ロー
タ翼を構成すると共に、前記断面形状を有する羽根を加
工する方法として該高速回転する比較的小径のエンドミ
ルを前記羽根の断面輪郭線に沿って高速送り速度で移動
させると共に、前記羽根の放射方向の断面形状の変化に
対応して移動し、所定の羽根形状を形成し、同一加工を
順次繰返して全羽根群を加工する加工方法を特徴とする
ものである。Means for Solving the Problems For this purpose, the present invention provides a cross section of each blade of a group of blades formed in a cylindrical shape, arranged in multiple rows along the axial direction, and extending radially. Constructing a multi-row rotor blade whose shape is formed from a straight line or streamlined contour and whose cross-sectional shape along the radial direction is constant or variable, and processing the blade having the cross-sectional shape. The method involves moving the relatively small-diameter end mill that rotates at high speed at a high feed rate along the cross-sectional contour line of the blade, and moving it in response to changes in the cross-sectional shape of the blade in the radial direction, thereby forming a predetermined blade shape. It is characterized by a processing method in which the same processing is sequentially repeated to process all the blade groups.
実施例
第１図に示す如く、羽根３の断面輪郭線は流体（空気等
）が流れ易いように流線形の流れ曲線から形成される。Embodiment As shown in FIG. 1, the cross-sectional outline of the blade 3 is formed from a streamlined flow curve so that fluid (air, etc.) can easily flow therethrough.
これにより吸入効率を向上することができる。流線形の
曲線形状は後に説明する加工方法により所望のものを形
成することができる。This makes it possible to improve suction efficiency. A desired streamlined curved shape can be formed by a processing method described later.
第２図は中間部に直線部を設けた羽根３の断面形状を示
す、加工し易い利点を有するが第１図のものより吸入効
率は低下する。勿論羽根３の断面形状は前記のものに限
らず任意形状のものを形成することができる。FIG. 2 shows a cross-sectional shape of the blade 3 with a straight section in the middle, which has the advantage of being easy to process, but the suction efficiency is lower than that of FIG. 1. Of course, the cross-sectional shape of the blade 3 is not limited to the above-mentioned shape, and any shape can be formed.
第３図及び第４図は放射方向に沿った断面形状が変化す
る羽根３の実施例を示す、第３図は曲線状に根元に向っ
て断面形状が順次大きくなるもの、第４図はテーパ状に
形成されるものである。3 and 4 show examples of blades 3 in which the cross-sectional shape along the radial direction changes. FIG. 3 shows a blade 3 in which the cross-sectional shape gradually increases toward the base in a curved shape, and FIG. 4 shows a blade with a tapered shape. It is formed in a shape.
勿論放射方向に沿う断面形状も後に説明する加工方法に
より前記２列に限らず多様の形状に形成することができ
る。Of course, the cross-sectional shape along the radial direction can be formed into various shapes other than the two rows described above by a processing method that will be explained later.
羽根３を第３図及び第４図の如く形成することにより羽
根強度を向上し得ると共に吸気の流れを可変にすること
が可能となる。なお図示していないが羽根３の傾斜角度
αも後記する加工方法により適宜のものを設定すること
が可能となる。By forming the blades 3 as shown in FIGS. 3 and 4, the strength of the blades can be improved and the flow of intake air can be made variable. Although not shown, the inclination angle α of the blade 3 can also be appropriately set by a processing method described later.
以上の如へ〈１本実施例によれば所望の形状を有する羽
根３を形成する一体構造の多列ロータ翼１が得られ、吸
入効率を向上し得ると共に、羽根強度を向上することが
可能となる。As described above, (1) According to this embodiment, a multi-row rotor blade 1 having an integral structure forming blades 3 having a desired shape can be obtained, and it is possible to improve suction efficiency and blade strength. becomes.
次に、以上に説明した各種形状の羽根３を加工する加工
方法について説明する。Next, processing methods for processing the various shapes of the blades 3 explained above will be explained.
第５図に示す如く多列ロータ翼ｌの１枚の羽根３毎にそ
の輪郭線８にエンドミル９を当接する。As shown in FIG. 5, an end mill 9 is brought into contact with the contour line 8 of each blade 3 of the multi-row rotor blade 1.
エンドミル９は隣接する羽根３に干渉しない比較的小径
のものが使用される。The end mill 9 used has a relatively small diameter so as not to interfere with the adjacent blades 3.
エンドミル９はその直径と被加工物材質に応じた切削速
度で回転すべく機械の主軸（図示せず）に支持されると
共に、三次元方向の自動制御を行う機械の制御装置によ
りコントロールされるべく形成される。またエンドミル
９は羽根３の放射方向にほぼ沿って配こされ、かつ前記
した如く輪郭線８に当接して配置される。The end mill 9 is supported by a main shaft (not shown) of the machine so as to rotate at a cutting speed according to its diameter and the material of the workpiece, and is also controlled by a machine control device that automatically controls the three-dimensional direction. It is formed. Further, the end mill 9 is arranged substantially along the radial direction of the blade 3, and is arranged in contact with the contour line 8 as described above.
輪郭線８（羽根３の断面形状）の形成は第６図に示す如
く高速回転（約１０，０００ｒｐ膳）エンドミル９を前
記制御装置により輪郭線８に沿って高速送り速度（約１
”／ａｓ）で移動させることによって行われる。To form the contour line 8 (the cross-sectional shape of the blade 3), as shown in FIG.
”/as).
第７図は羽根３間を加工して羽根３の断面形状を形成す
る実施例を示す。FIG. 7 shows an embodiment in which the space between the blades 3 is processed to form the cross-sectional shape of the blade 3.
エンドミル９は羽根３間の輪郭線８゛に沿い前記と同様
に高速、かつ高速送りで移動し隣接する羽根３間の対峙
する輪郭線８を加工する０以上の羽根３間の加工を全羽
根３間について行うことにより羽根３の断面形状が形成
される。この場合羽根３間に挿入可部な直径を有するエ
ンドミル９が使用可１走となるため強度の高いエンドミ
ル９が使用され、加工時間及び加工精度をより向上せし
めることが可能となる。The end mill 9 moves along the contour line 8' between the blades 3 at high speed and high-speed feed in the same manner as described above, and processes the facing contour line 8 between adjacent blades 3.The end mill 9 processes the machining between 0 or more blades 3 on all blades. The cross-sectional shape of the blade 3 is formed by performing this step for three intervals. In this case, the end mill 9, which has a diameter that allows insertion between the blades 3, can be used for only one run, so a strong end mill 9 is used, making it possible to further improve machining time and machining accuracy.
羽根３の放射方向の断面形状が不変の場合にはエンドミ
ル９を放射方向に沿って羽根３の中心側に向って切込み
すればよいが、第３図及び第４図に示す如く断面形状が
変化する場合にはエンドミル９をこれに対応せしめて移
動制御することが必要となる。これ等の移動量は制御装
置による公知の自動制御技術により可能となる。If the cross-sectional shape of the blade 3 in the radial direction remains unchanged, the end mill 9 may be cut along the radial direction toward the center of the blade 3, but as shown in FIGS. 3 and 4, the cross-sectional shape changes. In this case, it is necessary to control the movement of the end mill 9 in accordance with this. These amounts of movement are made possible by known automatic control techniques by the control device.
以上の如く、各列の各羽根３毎に前記加工を行うことに
より全羽根３を高速切削加工により形成することができ
る。As described above, all the blades 3 can be formed by high-speed cutting by performing the processing for each blade 3 in each row.
第８図は隣接する羽根３間の底面１０の加工方法を示す
、底面ｌＯは円弧状に形成されることが必要となる。エ
ンドミル９をこの円弧に沿って図示の如く移動制御する
ことにより底面１０をほぼ円弧状に加工形成可使となる
０以上の加工方法により従来技術では不可能とされた各
種形状の羽根３が加工成形されると共に、放電加工に較
べ比較的短時間（約２１３）に加工され、また高精度に
加工される。また羽根角度αも任意に変化させることも
できる。FIG. 8 shows a method of processing the bottom surface 10 between adjacent blades 3. The bottom surface 10 needs to be formed in an arc shape. By controlling the movement of the end mill 9 along this circular arc as shown in the figure, the bottom surface 10 can be processed into a substantially circular arc shape.Using zero or more processing methods, various shapes of the blades 3 that were impossible with conventional techniques can be processed. It is formed, processed in a relatively short time (approximately 213 seconds) compared to electric discharge machining, and is processed with high precision. Further, the blade angle α can also be changed arbitrarily.
発明の効果
以上の説明で明らかな如く１本発明によれば所望の多種
形状の羽根を有する多列ロータ翼が形成され、吸入効率
を向上し得ると共に、短時間に高品質の羽根を加工し得
る効果が上げられる。Effects of the Invention As is clear from the above explanation, according to the present invention, multi-row rotor blades having blades of various desired shapes can be formed, suction efficiency can be improved, and high quality blades can be fabricated in a short time. The effect you get will be increased.
第１図及び第２図は本発明実施例の羽根の断面形状を示
す断面図、第３図及び第４図は実施例の羽根の全体形状
を示す斜視図、第５図は実施例の加工方法を示す一部斜
視図、第６図ないし第８図は同じ〈実施例の加工方法を
説明する説明図、第９図は多列ロータ翼の全体構造を示
す斜視図、第１０図は多列ロータ翼の使用される吸入装
置の概要を示す断面図、第１１図は多列ロータ翼の羽根
配列を示す一部展開図である。
１・・・・多列ロータ翼、２・・・・中心穴、３・・・
・羽ｆｆ１．４・・・ｅケーシング、５會争・・中心軸
、６・・・・吸入口、７・・・・排気口、８．８° ・
ｌ１１１１１輪郭線、９″′ｌ・・エンドミル、１０・
・・斡底面。
特 許 出 願 人
オフ図 才８図1 and 2 are cross-sectional views showing the cross-sectional shape of the blade according to the embodiment of the present invention, FIGS. 3 and 4 are perspective views showing the overall shape of the blade according to the embodiment, and FIG. 5 is the processing of the embodiment. FIGS. 6 to 8 are explanatory diagrams explaining the processing method of the same example. FIG. 9 is a perspective view showing the overall structure of a multi-row rotor blade, and FIG. FIG. 11 is a cross-sectional view showing an outline of a suction device using row rotor blades, and FIG. 11 is a partially exploded view showing the blade arrangement of a multi-row rotor blade. 1...Multi-row rotor blade, 2...Center hole, 3...
・Flight ff1.4...e casing, 5...center axis, 6...intake port, 7...exhaust port, 8.8°
l11111 Contour line, 9''l... End mill, 10.
・Bottom surface. Patent application Person-off diagram Age 8 diagram
Claims (1)
傾斜角度を形成しながら放射状に伸延して形成されるロ
ータ翼であって、該ロータ翼の個々の羽根断面形状を直
線又は流曲線の輪郭から形成すると共に、前記放射方向
に沿って前記羽根の前記断面形状を一定又は可変に形成
することを特徴とする多列ロータ翼。 ２、円筒の軸線方向に沿って多列に配設されると共に放
射状に伸延して形成されるロータ翼の個々の羽根の断面
輪郭線や羽根間での輪郭形状線に沿って比較的小径のエ
ンドミルを移動すると共に、該エンドミルを前記羽根の
放射方向の断面形状の変化に応答して移動しそれぞれの
羽根を順次に加工形成することを特徴とする多列ロータ
翼の加工方法。[Claims] 1. Arranged in multiple rows along the axial direction of the cylinder,
A rotor blade is formed by extending radially while forming an inclination angle, and the cross-sectional shape of each blade of the rotor blade is formed from a straight line or a streamlined contour, and the blade is extended radially along the radial direction. A multi-row rotor blade characterized in that the cross-sectional shape is formed to be constant or variable. 2. The rotor blades are arranged in multiple rows along the axial direction of the cylinder and are formed by radially extending. A method for machining a multi-row rotor blade, comprising moving an end mill and moving the end mill in response to a change in the cross-sectional shape of the blade in a radial direction to sequentially process and form each blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6852186A JPS62225702A (en) | 1986-03-28 | 1986-03-28 | Multi-row rotor blade and manufacture thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6852186A JPS62225702A (en) | 1986-03-28 | 1986-03-28 | Multi-row rotor blade and manufacture thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62225702A true JPS62225702A (en) | 1987-10-03 |
Family
ID=13376105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6852186A Pending JPS62225702A (en) | 1986-03-28 | 1986-03-28 | Multi-row rotor blade and manufacture thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62225702A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01127213A (en) * | 1987-11-09 | 1989-05-19 | Naoto Ibarada | Manufacture of moving blade for turbine |
| US20160052071A1 (en) * | 2013-05-09 | 2016-02-25 | Ihi Corporation | Wing surface finishing method and wing component |
-
1986
- 1986-03-28 JP JP6852186A patent/JPS62225702A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01127213A (en) * | 1987-11-09 | 1989-05-19 | Naoto Ibarada | Manufacture of moving blade for turbine |
| US20160052071A1 (en) * | 2013-05-09 | 2016-02-25 | Ihi Corporation | Wing surface finishing method and wing component |
| US9694430B2 (en) * | 2013-05-09 | 2017-07-04 | Ihi Corporation | Wing surface finishing method and wing component |
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