JPS5859400A - Apparatus for varying setting angle of stator blades of multi-stage axial-flow compressor - Google Patents
Apparatus for varying setting angle of stator blades of multi-stage axial-flow compressorInfo
- Publication number
- JPS5859400A JPS5859400A JP15626081A JP15626081A JPS5859400A JP S5859400 A JPS5859400 A JP S5859400A JP 15626081 A JP15626081 A JP 15626081A JP 15626081 A JP15626081 A JP 15626081A JP S5859400 A JPS5859400 A JP S5859400A
- Authority
- JP
- Japan
- Prior art keywords
- guide groove
- intermediate cylinder
- angle
- lever
- stator
- 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
- 238000003780 insertion Methods 0.000 claims description 12
- 230000037431 insertion Effects 0.000 claims description 12
- 230000010355 oscillation Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 4
- 239000011295 pitch Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/54—Fluid-guiding means, e.g. diffusers
- F04D29/56—Fluid-guiding means, e.g. diffusers adjustable
- F04D29/563—Fluid-guiding means, e.g. diffusers adjustable specially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D17/00—Regulating or controlling by varying flow
- F01D17/10—Final actuators
- F01D17/12—Final actuators arranged in stator parts
- F01D17/14—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits
- F01D17/16—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of nozzle vanes
- F01D17/162—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of nozzle vanes for axial flow, i.e. the vanes turning around axes which are essentially perpendicular to the rotor centre line
Abstract
Description
【発明の詳細な説明】
本発明は多段に設けられた静翼の取付角度を変更するよ
うにした多段軸流圧縮機の静翼取付角度可変装置に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a stator vane mounting angle variable device for a multi-stage axial flow compressor that changes the mounting angle of stator vanes provided in multiple stages.
軸流圧縮機の容量を制御するため従来から静翼取付角度
可変装置（静翼可変ピッチ装置）が用いられている。そ
の従来例を第１図〜第７図によシ説明する。各図におい
て、同一符号を付した部分は同−若しくは相当する部分
を示す。BACKGROUND ART A variable stator blade mounting angle device (variable stator blade pitch device) has been used to control the capacity of an axial compressor. The conventional example will be explained with reference to FIGS. 1 to 7. In each figure, parts given the same reference numerals indicate the same or corresponding parts.
８１図、第２図は第１の従来例を示すもので。81 and 2 show the first conventional example.
静翼１は軸受８を介して内ケーシング９に取付けられて
いる。静翼１は同一円周上に等ピッチで数十枚配置され
、また軸方向にも複数段配置されている。内ケーシング
９の外周側に突出した静翼軸１ａにはレバー２が取付け
られておシ、このレバー２の端部には回転コマ４を備え
る軸３が取付けられている。５は外ケーシング（図示せ
ず）と内ケーシング９との間忙μけられた中間円筒で、
この中間円筒５の内周側には円周方向の案内＃＄５ａが
設けられており、この案内＃１５ａには前記回転コマ４
が挿入されている。したがって、静翼軸１ａはレバー２
＃軸３１回転コマ４’！−介して中間円筒５に連結され
る。中間円Ｔｈ５はレバー６を介して外ケーシングに取
付けられたパワーシリンダ７と連結されている。このよ
うに構成することによシ、パワーシリンダ７によって中
間円筒５を軸方向に移動させれば、第２図に示す様に、
案内溝５ａの軸方向移動に伴って回転コマ４は溝５ａ内
をすべって移動し、同時にレバー２も回転する。The stator blade 1 is attached to an inner casing 9 via a bearing 8. Several dozen stator blades 1 are arranged at equal pitches on the same circumference, and are also arranged in multiple stages in the axial direction. A lever 2 is attached to the stator vane shaft 1a protruding toward the outer circumference of the inner casing 9, and a shaft 3 having a rotating piece 4 is attached to the end of the lever 2. 5 is an intermediate cylinder inserted between an outer casing (not shown) and an inner casing 9;
A circumferential guide #$5a is provided on the inner circumferential side of the intermediate cylinder 5, and this guide #15a is provided with the rotating top 4.
is inserted. Therefore, the stator blade shaft 1a is the lever 2
#Axis 31 rotation piece 4'! - is connected to the intermediate cylinder 5 via. The intermediate circle Th5 is connected via a lever 6 to a power cylinder 7 attached to the outer casing. With this configuration, if the power cylinder 7 moves the intermediate cylinder 5 in the axial direction, as shown in FIG.
As the guide groove 5a moves in the axial direction, the rotary piece 4 slides within the groove 5a, and at the same time, the lever 2 rotates.
したがって、静翼１の取付角度を所定の角度に設定する
ことができる。しかし、この従来装置では案内溝５ａの
壁と回転コマ４の側面が常に接触してすべるため、その
摺動部が摩耗したシ焼付きを引起し、静翼取付角の変更
がスムーズにできなくなることがあるという欠点があっ
た。また、案内溝５ａと回転コマ４との摺動部の油潤滑
は構造上困難であシ、この摺動部の摩耗および焼付きに
対する対策としては、案内溝５ａ部および回転コマ４の
材質、表面硬さ、案内溝５ａと回転コマ４との間の隙間
量、中間円筒５の移動スピードの問題など高度の技術を
必要としていた。しかしそれらの対策を施したとしても
、静翼取付角の変更は、常に圧縮機、を高効率で運転す
るために、吸込流体の状態変化およびプラントの使用状
態の変化に対応して常に行なわれるものであり、したが
って案内溝５ａや回転コマ４の使用条件はかなり厳しい
ものであった。Therefore, the mounting angle of the stationary blade 1 can be set to a predetermined angle. However, in this conventional device, the wall of the guide groove 5a and the side surface of the rotary piece 4 always come into contact and slide, which causes the sliding part to wear and seize, making it impossible to change the stationary blade mounting angle smoothly. There were some drawbacks. Furthermore, oil lubrication of the sliding part between the guide groove 5a and the rotating piece 4 is structurally difficult, and as countermeasures against wear and seizure of this sliding part, the material of the guide groove 5a part and the rotating piece 4, High-level technology was required to solve problems such as surface hardness, the amount of clearance between the guide groove 5a and the rotary piece 4, and the moving speed of the intermediate cylinder 5. However, even if these measures are taken, the stator blade mounting angle must always be changed in response to changes in the suction fluid status and plant usage conditions in order to operate the compressor with high efficiency. Therefore, the conditions for using the guide groove 5a and the rotary piece 4 were quite severe.
第３図〜第５図は第２の従来例を示すもので、これは中
間円筒５に軸方向の案内溝５．８ｆ設け、この案内溝５
ａに回転コマ４を挿入している。中間円筒５はパワーシ
リンダ７によりリンク１１を介して円周方向に回転され
、このとき第５図に示す様に案内＃５ａの円周方向移動
に伴って回転コマ４はＳＳａ内をすべって移動し、同時
にレバー２も回転する。したがって、前記第１の従来例
と同様に、静翼１を所定の取付角度に設定することがで
きる。しかし、この従来装置においても、案内＃４５ａ
の壁と回転コマ４の側面が常に接触してすべるため、そ
の摺動部が摩耗したり焼付きを引起すという欠点があっ
た。3 to 5 show a second conventional example, in which an axial guide groove 5.8f is provided in the intermediate cylinder 5, and this guide groove 5.
Rotating top 4 is inserted at a. The intermediate cylinder 5 is rotated in the circumferential direction by the power cylinder 7 via the link 11, and at this time, as shown in FIG. 5, as the guide #5a moves in the circumferential direction, the rotating piece 4 slides within the SSa. At the same time, lever 2 also rotates. Therefore, similarly to the first conventional example, the stationary blade 1 can be set at a predetermined mounting angle. However, even in this conventional device, guide #45a
Since the wall and the side surface of the rotating top 4 always come into contact with each other and slide, there is a drawback that the sliding portion is worn out or seizes.
第６図、第７図は第３の従来例を示すもので、前記第１
．第２の従来例の欠点を改良するようにしたものである
。図に示すように、静翼軸１Ｂには回転レバー２が取付
けられており、このレバー２の端部には軸３を介して円
形状のリング１２が一結合されている。リング１２は軸
流圧縮機の各段ごとに独立して設けられておシ、各リン
グ１２は各段に設けられたパワーシリンダ（図示せず）
によって円周方向に回転される。リング１２が回転する
と、軸３を介してレバー２が回転され、したがって静翼
１を所定の取付角度に設定することができる。この従来
例によれば、前記第１．第２の従来例のような、案内溝
と回転コマとの摺動によるが題は解決できるが、リング
１２を圧縮機の各段ごとに独立して設けるタイプのもの
であるので。FIGS. 6 and 7 show a third conventional example.
．． This is an attempt to improve the drawbacks of the second conventional example. As shown in the figure, a rotary lever 2 is attached to the stationary vane shaft 1B, and a circular ring 12 is coupled to the end of the lever 2 via a shaft 3. The ring 12 is provided independently for each stage of the axial flow compressor, and each ring 12 is connected to a power cylinder (not shown) provided in each stage.
rotated circumferentially by When the ring 12 rotates, the lever 2 is rotated via the shaft 3, so that the stator blade 1 can be set at a predetermined mounting angle. According to this conventional example, the first. Although the problem of the second conventional example due to the sliding movement between the guide groove and the rotary piece can be solved, this is a type in which the ring 12 is provided independently for each stage of the compressor.
各段ごとにパワーシリンダなどを設置する必要があシ、
このためコメドアツブになったシ、制御も複雑となる。It is necessary to install a power cylinder etc. for each stage.
As a result, the comets become thick and the control becomes complicated.
また、静翼取付角度可変装置の設置スペースも大きくな
るという欠点があった。Further, there was a drawback that the installation space for the variable stationary blade mounting angle device was increased.
本発明は以上述べた従来装置の欠点に基づきなされたも
ので、従来の中間円ｗＪｔ用いて静翼の取付角度を変更
するものにおいて、中間円筒の内周側に設けられた案内
溝とこの溝に挿入されるレバ一端部の挿入部材との接触
部が互いに摺動することなく静翼取付角度の変更ができ
るように構成することによって、その接触部の摩耗や焼
付きを防止し、静翼取付角度の変更が常にスムーズに行
なわれるようにした多段軸流圧縮機の静翼取付角度可変
装置を提供することを目的とするものである。The present invention has been made based on the above-mentioned drawbacks of the conventional device, and in a device that changes the installation angle of a stationary blade using the conventional intermediate circle wJt, a guide groove provided on the inner peripheral side of the intermediate cylinder and a guide groove provided on the inner peripheral side of the intermediate cylinder. By configuring the stator vane installation angle to be changed without the contact part of one end of the lever inserted into the insertion member sliding against each other, wear and seizure of the contact part can be prevented, and the stator vane It is an object of the present invention to provide a variable installation angle device for stator vanes for a multi-stage axial flow compressor, which allows the installation angle to be changed smoothly at all times.
本発明は、外ケーシングの内部に内ケーシングが設けら
れ、この内ケーシングに取付角度を変更しうる静翼を多
段に取付けてなる多段軸流圧縮機において、前記外ケー
シングと内ケーシングとの間に静翼取付角度を変更する
ための中間円筒を設け、この中間円筒の内周側に案内溝
を設け、この案内溝と静翼軸とをレバーを介して連結し
、かつ。The present invention provides a multi-stage axial flow compressor in which an inner casing is provided inside an outer casing, and stator vanes whose mounting angles can be changed are attached to the inner casing in multiple stages, in which there is a space between the outer casing and the inner casing. An intermediate cylinder is provided for changing the mounting angle of the stator blade, a guide groove is provided on the inner peripheral side of the intermediate cylinder, and the guide groove and the stator blade shaft are connected via a lever.
前記レバーに取付けられた案内溝への挿入部材の回転軌
跡に合せるように中間円筒を移動させる手段を備えてい
ることを特徴とするものである。The present invention is characterized in that it includes means for moving the intermediate cylinder so as to match the rotation locus of the insertion member into the guide groove attached to the lever.
すなわち、前記第１．第２の従来例は生産性を考えた場
合には良い方法であるが、常に案内溝および回転コマの
皐耗、焼付の対策が問題になっていた。そこで１本発明
は、摩耗、焼付を起さぬ構成とするために、中間円筒の
移動方向を静翼を回転させるレバーの端部に取付けられ
た案内溝への挿入部材（例えば回転コマ）の軌跡と同一
にすることによシ、案内溝とこの案内溝への挿入部材と
のすぺｂ’ｔなくすようにしたものである。That is, the above-mentioned 1. Although the second conventional example is a good method from the viewpoint of productivity, there has always been a problem of countermeasures against wear and seizure of the guide groove and rotating piece. Therefore, in order to create a structure that does not cause wear and seizure, the present invention aims to change the direction of movement of the intermediate cylinder by inserting an insertion member (for example, a rotating top) into a guide groove attached to the end of a lever that rotates a stationary blade. By making it the same as the trajectory, the guide groove and the member inserted into the guide groove can be completely removed.
以下１本発明装置の一実施例を第８図〜第１０図により
説明する。図において、第１図〜第７図と同一符号を付
した部分は同−若しくは相当する部分を示す。An embodiment of the apparatus of the present invention will be described below with reference to FIGS. 8 to 10. In the figures, parts given the same reference numerals as in Figs. 1 to 7 indicate the same or corresponding parts.
図において、１０はロータ１３に取付けられた動翼で、
この動翼１０の下流側には静翼１が内ケーシング９に取
付角度を変更しつるように取付けられている。これら動
翼１０および静翼１は軸流圧縮機の段数に応じて複数段
設けられている。内ケーシング９は外ケーシング１４の
内側にいんろう部１５を介して固定されている。外ケー
シング１４と内ケーシング９どの間には静翼１の取付角
度を変更するための中間円筒５が設けられておシ、この
中間円筒５の内周側には案内溝５ａが設けられていて、
この案内溝５ａと静翼軸１ａとはレバー２を介して連結
されている。レバー２の端部には前記案内溝５ａへの挿
入部材、すなわちこの実施例では回転コマ４を備える軸
３が取付けられてお＃）、図に示すように案内＄５Ｍに
挿入されている。したがって、静翼軸１ａはレバー２．
軸３゜回転コマ４を介して中間円筒５に連結されている
。In the figure, 10 is a rotor blade attached to the rotor 13,
On the downstream side of the rotor blade 10, a stator blade 1 is attached to the inner casing 9 so as to hang at a different angle. These rotor blades 10 and stationary blades 1 are provided in multiple stages depending on the number of stages of the axial flow compressor. The inner casing 9 is fixed to the inner side of the outer casing 14 via a spigot part 15. An intermediate cylinder 5 for changing the mounting angle of the stator blade 1 is provided between the outer casing 14 and the inner casing 9, and a guide groove 5a is provided on the inner peripheral side of the intermediate cylinder 5. ,
The guide groove 5a and the stator vane shaft 1a are connected via a lever 2. At the end of the lever 2, a member to be inserted into the guide groove 5a, that is, in this embodiment, a shaft 3 having a rotary piece 4 is attached and inserted into the guide $5M as shown in the figure. Therefore, the stator blade shaft 1a is connected to the lever 2.
It is connected to an intermediate cylinder 5 via a 3° rotating piece 4.
中間円筒５は１円周方向に回転させる手段と軸方向に移
動させる手段とによシ動かされるようになってお如、前
記レバー２に取付けられた案内溝５ａへの挿入部材、す
なわち回転コマ４の回転軌跡と同一の方向に動かされる
ようになっている。The intermediate cylinder 5 is moved by a means for rotating it in the circumferential direction and a means for moving it in the axial direction. It is designed to be moved in the same direction as the rotation locus of 4.
この実施例では、中間円筒５を円周方向に回転させる手
段は第９図に示すように、中間円筒５の外周側に形成さ
れたプラタン）５ｂ、外ケーシング１４に取付けられた
パワーシリンダ７、および前記ブラケット５ｂとパワー
シリンダ７とを連結するリンク°１１とによって構成さ
れている。中間円筒５を軸方向に移動させる手段は第８
図および第１０図に示すように、内ケーシング９の外周
側と中間円筒５の端部内周面とに形成された多条台形ね
じ１６の螺合によ多構成されている。すなわち、前記パ
ワーシリンダ７によシ中間円筒５′ｌｋ円周方向に回転
させると、前記多条台形ねじ１・６の螺合によυ、中間
円筒５はそのねじ溝の方向に沿って軸方向にも移動する
ことになる。このように１本発明によれば、パワーシリ
ンダ７の作動によって中間円筒５を多条台形ねじ１６の
ねじ溝の方向に移動させることができる。したがって、
とのねじ溝の方向をレバー２の端部に取付けた案内溝５
ａへの挿入部材、すなわち回転コマ４０回転軌跡と同一
の方向に形成しておけば、案内溝５ａとこの溝に挿入さ
れるレバ−２端部の挿入部材（回転コマ４）との接触部
が互いに摺動することなく静翼１の取付角度の変更をす
ることができる。In this embodiment, the means for rotating the intermediate cylinder 5 in the circumferential direction are as shown in FIG. and a link 11 that connects the bracket 5b and the power cylinder 7. The means for moving the intermediate cylinder 5 in the axial direction is the eighth
As shown in the drawings and FIG. 10, it has a multi-threaded trapezoidal screw 16 formed on the outer circumferential side of the inner casing 9 and the inner circumferential surface of the end of the intermediate cylinder 5. That is, when the power cylinder 7 rotates the intermediate cylinder 5'lk in the circumferential direction, the intermediate cylinder 5 rotates axially along the direction of its thread grooves due to the screw engagement of the multi-thread trapezoidal screws 1 and 6. It will also move in the direction. As described above, according to the present invention, the intermediate cylinder 5 can be moved in the direction of the thread groove of the multi-thread trapezoidal screw 16 by the operation of the power cylinder 7. therefore,
The guide groove 5 attached to the end of the lever 2 is aligned with the direction of the thread groove.
If the insertion member is formed in the same direction as the rotating locus of the rotating piece 40, the contact portion between the guide groove 5a and the insertion member (rotating piece 4) at the end of the lever 2 inserted into this groove. The mounting angle of the stationary blades 1 can be changed without the blades sliding against each other.
次に、上述した本発明装置の動作をさらに具体的に説明
する。軸流圧縮機の風量、風圧をその時点の要求される
値に保つため、制御装置（図示せず）の指令によシパワ
ーシリンダ７が作動する。Next, the operation of the above-described device of the present invention will be explained in more detail. In order to maintain the air volume and air pressure of the axial flow compressor at the values required at that time, the shipower cylinder 7 is operated according to a command from a control device (not shown).
パワーシリンダ７の作動はリンク１１を介して中間円筒
５に伝えられ、中間円筒５は円周方向に回転される。こ
のとき、多条台形ねじ１６の螺合によって中間円筒５は
円周方向に回転しながらロータ１３の軸方向にも移動す
る。すなわち、中間円筒５はパワーシリンダ７の作動に
よって多条台形ねじ１６のねじ溝の方向に移動する。首
い換えれば、中間円筒５は多条台形ねじ１６のねじピッ
チ傾斜角度に従った動きをする。第１０図に示すように
、静翼１の可変角度αは一般的に＋２０度あれば十分で
ある。そこで、静翼１の取付角度αが一２０度の場合の
回転コマ４の位置’Ｉａ点、その角度αが＋２０度の場
合の回転コマ４の位置をｂ点とし、ａ点とｂ点を結ぶ線
と案内＊Ｓａの中心線とが為す角度をθとすれば、前記
多条台形ねじ１６のねじピッチ傾斜角度を前記角度θに
合せることによシ、案内１１１５ＪＩと回転コマ４との
移動の位置関係はほぼ一致し、案内溝５ａと回転コマ４
が相対的にすべるのを防止することができる。したがっ
て、案内溝５ａと回転コマ４との接触部の摩耗および焼
付きを防止することができ、静翼取付角度の変更を常に
スムーズに行なうことができる。また、この実施例では
１個のパワーシリンダ７で多段に設けられた全ての静翼
１の取付角度を同時に制御することができ、さらにこの
パワーシリンダ７は中間円筒５を斜めの方向に移動させ
ることになるので、パワーシリンダ７の作動ストローク
は長くなるが、逆に作動トルクはＡごさくなシ。The operation of the power cylinder 7 is transmitted to the intermediate cylinder 5 via the link 11, and the intermediate cylinder 5 is rotated in the circumferential direction. At this time, the intermediate cylinder 5 rotates in the circumferential direction and also moves in the axial direction of the rotor 13 due to the screw engagement of the multi-start trapezoidal screw 16. That is, the intermediate cylinder 5 moves in the direction of the thread groove of the multi-start trapezoidal screw 16 by the operation of the power cylinder 7. In other words, the intermediate cylinder 5 moves according to the thread pitch inclination angle of the multi-thread trapezoidal screw 16. As shown in FIG. 10, it is generally sufficient for the variable angle α of the stationary blade 1 to be +20 degrees. Therefore, the position of the rotating top 4 when the mounting angle α of the stationary blade 1 is 120 degrees is point 'Ia, the position of the rotating top 4 when the angle α is +20 degrees is set as point b, and points a and b are If the angle between the connecting line and the center line of the guide *Sa is θ, then by adjusting the thread pitch inclination angle of the multi-thread trapezoidal screw 16 to the angle θ, the movement of the guide 1115JI and the rotating piece 4 can be made. The positional relationship between the guide groove 5a and the rotating piece 4 is almost the same.
can be prevented from sliding relative to each other. Therefore, wear and seizure of the contact portion between the guide groove 5a and the rotary piece 4 can be prevented, and the mounting angle of the stationary blade can always be changed smoothly. Furthermore, in this embodiment, one power cylinder 7 can simultaneously control the mounting angles of all stator vanes 1 provided in multiple stages, and furthermore, this power cylinder 7 moves the intermediate cylinder 5 in an oblique direction. Therefore, the operating stroke of the power cylinder 7 becomes longer, but on the other hand, the operating torque is A small.
静翼取付角度の微調整も容易に行なえるという効果があ
る。なお、この実施例では多条台形ねじ１６を形成する
ようにしているが、必ずしも多条台形ねじ１６に限るも
のではなく普通のねじや溝、あるいは案内板などでもよ
く、特にその溝や案内板を回転コマ４の軌跡に合せたカ
ーブになるように構成すれば、中間円筒５の移動方向を
完全に回転コマ４の軌跡に一致させることができる。This has the advantage that fine adjustment of the stator blade mounting angle can be easily performed. In this embodiment, a multi-thread trapezoidal screw 16 is formed, but it is not necessarily limited to the multi-thread trapezoidal screw 16, and may be an ordinary screw, groove, or guide plate. If it is configured to be a curve that matches the trajectory of the rotating top 4, the moving direction of the intermediate cylinder 5 can be made to completely match the trajectory of the rotating top 4.
なお、前記一実施例では中間円筒を円周方向に移動させ
る手段としてパワーシリンダを用いているが、中間円筒
を軸方向に移動させるようにパワーシリンダを作用させ
たシ、するいはこのパワーシリンダを直接多条台形ねじ
のねじ溝の方向に作用させるように構成しても同様の効
果を得ることができる。さらに本発明において、中間円
筒を移動させる手段はレバーに取付けられた案内溝への
挿入部材の回転軌跡に合せるように移動させることがで
きるものであれば、前記実施例のものに限定されるもの
でないことは当然であシ、シたがって、中間円ａｔ円周
方向や軸方向、あるいはレバーに取付けられた案内溝へ
の挿入部材の回転軌跡の方向に直接移動させる手段が、
パワーシリンダや多条台形ねじなどに限定されるもので
ないことも轟然である。また、前記実施例では案内溝へ
の挿入部材として回転コマを使用しているが、本発明で
は案内溝と挿入部材とのすべｂｔ防止できるので、挿入
部材として必ずしも回転コマを使用しなければならない
ものではなく、単なる軸のようなものでもよい。In the above embodiment, a power cylinder is used as a means for moving the intermediate cylinder in the circumferential direction. A similar effect can be obtained by configuring it to act directly in the direction of the thread groove of the multi-thread trapezoidal screw. Further, in the present invention, the means for moving the intermediate cylinder is not limited to those of the above embodiments, as long as it can be moved in accordance with the rotation locus of the insertion member into the guide groove attached to the lever. Of course, this is not the case, and therefore, means for directly moving the intermediate circle in the circumferential direction or axial direction, or in the direction of the rotation locus of the insertion member into the guide groove attached to the lever, is
It is also surprising that the invention is not limited to power cylinders or multi-thread trapezoidal screws. Further, in the above embodiment, a rotating piece is used as the member to be inserted into the guide groove, but since the present invention can prevent slippage between the guide groove and the insertion member, it is not necessary to use a rotating piece as the insertion member. It may not be a real thing, but something like a simple axis.
本発明装置は以上詳述したように、静翼取付角度を変更
するための中間円筒の移動方向を、静翼を回転させるた
めのレバーの端部に取付けた案内溝への挿入部材の回転
軌跡に合せるように構成したので、中間円筒の内周側に
設けられた案内溝と。As described in detail above, in the device of the present invention, the direction of movement of the intermediate cylinder for changing the mounting angle of the stator blades is determined by the rotation locus of the insertion member in the guide groove attached to the end of the lever for rotating the stator blades. Since it is configured to match the guide groove provided on the inner circumferential side of the intermediate cylinder.
この溝に挿入されるレバ一端部の挿入部材との接触部が
互いに摺動することなく静翼取付角度の変更ができるの
で、その接触部の摩耗や焼付きを防止し、静翼取付角度
の変更を常にスムーズに行なうことができるという効果
があり、軸流圧縮機全体の信頼性を向上するととができ
る。The mounting angle of the stator vanes can be changed without the contact part of one end of the lever inserted into this groove sliding against each other, so wear and seizure of the contact part can be prevented, and the mounting angle of the stator vanes can be changed. This has the effect that changes can always be made smoothly, and the reliability of the entire axial flow compressor can be improved.
第１図は第１の従来例を示す要部の縦断面図、第２図は
第１図の■−■線矢視図、第３図は第２の従来例を示す
壁部の縦断面図、第４図は第３図の側断面図、第５図は
第３図の■−■線矢視図、第６図は第３の従来例を示す
要部の縦断面図、第７図は第６図の■−■線矢視図、第
８図は本発明装置の一実施例を示す要部の縦断面図、第
９図は一部８図の側断面図、第１０図は第８図のＸ−Ｘ
線矢視図である。
１・・・静翼、ｌａ・・・静翼軸、２・・・レバー、３
・・・軸、４・・・回転コマ（挿入部材）、５・・・中
間円ｍｓ５”・・・案内溝、７・・・パワーシリンダ（
中間円筒を移動させる手段）、９・・・内ケーシング、
１４・・・外ケーシング、１６・・・多条台形ねじ（中
間円筒を移動させる手段）。
才２ 凶
；ｔ−４区
才 ５ 図
才 ６ 図
身 ７ 図Fig. 1 is a vertical cross-sectional view of the main part showing the first conventional example, Fig. 2 is a view taken along the line ■-■ in Fig. 1, and Fig. 3 is a vertical cross-sectional view of the wall portion showing the second conventional example. 4 is a side sectional view of FIG. 3, FIG. 5 is a view taken along the line ■-■ in FIG. 3, FIG. 6 is a vertical sectional view of main parts showing the third conventional example, and FIG. The figures are a view taken along the line ■-■ in FIG. 6, FIG. 8 is a vertical cross-sectional view of the main part showing one embodiment of the device of the present invention, FIG. 9 is a side cross-sectional view of a portion of FIG. 8, and FIG. 10 is X-X in Figure 8
It is a line arrow view. 1...Stator blade, la...Stator blade shaft, 2...Lever, 3
... shaft, 4 ... rotating piece (insertion member), 5 ... intermediate circle ms5" ... guide groove, 7 ... power cylinder (
means for moving the intermediate cylinder), 9...inner casing,
14...Outer casing, 16...Multi-thread trapezoidal screw (means for moving the intermediate cylinder). 2 evil; t-4 ward 5 figure 6 figure 7 figure
Claims (1)
ケーシングに取付角度を変更しうる静翼を多段に取付け
てなる多段軸流圧縮機において、前記外ケーシングと内
ケーシングとの間に静翼取付角度を変更するための中間
円筒を設け、この中間円筒の内周側に案内溝を設け、こ
の案内溝と静翼軸とをレバーを介して連結し、かつ、前
記レバーに取付けられた案内溝への挿入部材の回転軌跡
〜に合せるように中間円筒を移動させる手段を備えてい
ることを特徴とする多段軸流圧縮機の静翼取付角度可変
装置。In a multistage axial flow compressor in which an inner casing is provided inside an outer casing, and stator vanes whose mounting angles can be changed are mounted in multiple stages on the inner casing, there is a stator vane mounting angle between the outer casing and the inner casing. A guide groove is provided on the inner circumferential side of the intermediate cylinder, and the guide groove and the stator vane shaft are connected via a lever, and the guide groove attached to the lever is connected to the guide groove. A stator blade mounting angle variable device for a multi-stage axial flow compressor, characterized in that it is provided with means for moving an intermediate cylinder so as to match the rotation locus of an insertion member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15626081A JPS5859400A (en) | 1981-10-02 | 1981-10-02 | Apparatus for varying setting angle of stator blades of multi-stage axial-flow compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15626081A JPS5859400A (en) | 1981-10-02 | 1981-10-02 | Apparatus for varying setting angle of stator blades of multi-stage axial-flow compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5859400A true JPS5859400A (en) | 1983-04-08 |
Family
ID=15623904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15626081A Pending JPS5859400A (en) | 1981-10-02 | 1981-10-02 | Apparatus for varying setting angle of stator blades of multi-stage axial-flow compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5859400A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5044879A (en) * | 1989-01-25 | 1991-09-03 | Rolls-Royce Plc | Variable stator vane arrangement for an axial flow compressor |
| US5215434A (en) * | 1991-01-25 | 1993-06-01 | Mtu Motoren-Und-Turbinen Union Munchen Gmbh | Apparatus for the adjustment of stator blades of a gas turbine |
| EP2204550A2 (en) | 2009-01-06 | 2010-07-07 | General Electric Company | Variable position guide vane actuation system and method |
| EP2204549A2 (en) * | 2009-01-06 | 2010-07-07 | General Electric Company | Variable position guide vane actuation system and method |
| CN104847704A (en) * | 2015-05-04 | 2015-08-19 | 浙江理工大学 | Mechanical device for immediately adjusting installing angle of guide vane |
| CN113661306A (en) * | 2019-04-05 | 2021-11-16 | 诺沃皮尼奥内技术股份有限公司 | Steam turbine with rotatable stator blades |
| CN113661306B (en) * | 2019-04-05 | 2024-04-30 | 诺沃皮尼奥内技术股份有限公司 | Steam turbine with rotatable stator blades |
-
1981
- 1981-10-02 JP JP15626081A patent/JPS5859400A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5044879A (en) * | 1989-01-25 | 1991-09-03 | Rolls-Royce Plc | Variable stator vane arrangement for an axial flow compressor |
| US5215434A (en) * | 1991-01-25 | 1993-06-01 | Mtu Motoren-Und-Turbinen Union Munchen Gmbh | Apparatus for the adjustment of stator blades of a gas turbine |
| EP2204550A2 (en) | 2009-01-06 | 2010-07-07 | General Electric Company | Variable position guide vane actuation system and method |
| EP2204549A2 (en) * | 2009-01-06 | 2010-07-07 | General Electric Company | Variable position guide vane actuation system and method |
| EP2204550A3 (en) * | 2009-01-06 | 2011-01-19 | General Electric Company | Variable position guide vane actuation system and method |
| EP2204549A3 (en) * | 2009-01-06 | 2011-01-26 | General Electric Company | Variable position guide vane actuation system and method |
| US8297918B2 (en) | 2009-01-06 | 2012-10-30 | General Electric Company | Variable position guide vane actuation system and method |
| CN104847704A (en) * | 2015-05-04 | 2015-08-19 | 浙江理工大学 | Mechanical device for immediately adjusting installing angle of guide vane |
| CN104847704B (en) * | 2015-05-04 | 2017-03-01 | 浙江理工大学 | A kind of instant machinery adjusting stator established angle |
| CN113661306A (en) * | 2019-04-05 | 2021-11-16 | 诺沃皮尼奥内技术股份有限公司 | Steam turbine with rotatable stator blades |
| JP2022527353A (en) * | 2019-04-05 | 2022-06-01 | ヌオーヴォ・ピニォーネ・テクノロジー・ソチエタ・レスポンサビリタ・リミタータ | Steam turbine with rotatable stator blades |
| CN113661306B (en) * | 2019-04-05 | 2024-04-30 | 诺沃皮尼奥内技术股份有限公司 | Steam turbine with rotatable stator blades |
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