JPH0372805B2 - - Google Patents
Info
- Publication number
- JPH0372805B2 JPH0372805B2 JP60060599A JP6059985A JPH0372805B2 JP H0372805 B2 JPH0372805 B2 JP H0372805B2 JP 60060599 A JP60060599 A JP 60060599A JP 6059985 A JP6059985 A JP 6059985A JP H0372805 B2 JPH0372805 B2 JP H0372805B2
- Authority
- JP
- Japan
- Prior art keywords
- nozzle
- rod
- knob
- expansion turbine
- movable
- 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 - Lifetime
Links
- 230000000694 effects Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Turbines (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は、可変ノズル膨張タービンの可動リン
グとロツドとの適切な結合構造を有するノズル駆
動装置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 nozzle drive device having a suitable coupling structure between a movable ring and a rod of a variable nozzle expansion turbine.
一般に可変式ノズルの駆動装置としては、可動
リングにノブを設け、リンクとピンでノブをロツ
ドに連結させロツドの直線運動を可動リングの回
転運動に変換させる機構が採用されている。この
構造では、リンクおよびピンの分解組立が取付ス
ペースが狭く困難である。
In general, variable nozzle drive devices employ a mechanism in which a knob is provided on a movable ring, the knob is connected to a rod by links and pins, and linear motion of the rod is converted into rotational motion of the movable ring. With this structure, disassembly and assembly of the links and pins is difficult due to the narrow installation space.
可変式ノズルは、ノズルの角度を変えてノズル
のガス通路面積を変化させ、ガス処理流量を変化
させるものである。 A variable nozzle changes the gas passage area of the nozzle by changing the angle of the nozzle, thereby changing the gas processing flow rate.
本発明の目的は、タービン内部での分解組立作
業を容易にする膨張タービン可変式ノズル駆動装
置を提供することである。
An object of the present invention is to provide an expansion turbine variable nozzle drive device that facilitates disassembly and assembly operations inside the turbine.
本発明は、ノズルの角度を変化させる可動リン
グとロツド連結部は、リングの外周に円弧状のノ
ブを設け、ロツドのノブ挿入用の穴に噛合せる構
造としたことを特徴とする。
The present invention is characterized in that the movable ring for changing the angle of the nozzle and the rod connecting portion have a structure in which an arc-shaped knob is provided on the outer periphery of the ring and is engaged with a hole for inserting the knob in the rod.
以下、本発明の実施例を図に基づいて説明す
る。第１図において、可変ノズル膨張タービンの
構造は、膨張タービン本体１とロツド直線運動を
生みだす空気シリンダ２を結合させて構成する。
第２図において、ノズル駆動装置３は、ノズル固
定リング４にノズル５を固定ピン６で連結し、ま
た可動ピン７は、可動リング８上に設けノズルを
固定ピンと可動ピンの２本て支持する構造におい
て、この可動リング８を回転させることにより、
可動ピン７を介しノズル５の角度を変化させ、ノ
ズル面積を変化させる。可動リング８は、ロツド
(1)９の直線運動を可動リングの回転運動に変換さ
せるため、可動リング外周部にロツドの移動方向
にそれぞれ円弧面の突出した形状を有するノブを
設け、ロツド(1)９接続部にはノブ挿入用の溝穴を
設ける。このノブとロツド(1)９との係合部をノブ
の断面形状を円弧面とし、ロツドの係合面を直線
とした溝穴面とで係合させる構造としたことによ
り、ロツド(1)９の直線運動を可動リング８の回転
運動に変換する構造である。このノブとロツド(1)
９との係合部の詳細を第３図に示す。また、ロツ
ド(1)９はロツド(2)１０をピン１１を介して連結
し、ロツド(2)１０は空気シリンダ２に連結され
る。また、ロツド(2)１０には伸縮継手１２を溶接
で取り付け、伸縮継手１２の他端はカバー１３に
溶接で取り付けることで、膨張タービン側ロツト
と空気シリンダ側外部ロツドを一体分離した構造
とする。ロツド(2)１０の直接移動量に対し、伸縮
継手１２の伸縮作用でシール部長さの変動量を吸
収させ、ガスの漏洩を完全シールした可変式ノズ
ル駆動装置となる。以上の可変ノズル駆動装置に
よれば、タービン内部での分解組立作業を容易に
し、しかもガスを外部に漏洩させない効果があ
る。
Embodiments of the present invention will be described below based on the drawings. In FIG. 1, the structure of the variable nozzle expansion turbine is constructed by connecting an expansion turbine body 1 and an air cylinder 2 that produces rod linear motion.
In FIG. 2, the nozzle driving device 3 connects the nozzle 5 to the nozzle fixing ring 4 with a fixed pin 6, and the movable pin 7 is provided on the movable ring 8 and supports the nozzle with two pins: a fixed pin and a movable pin. In the structure, by rotating this movable ring 8,
The angle of the nozzle 5 is changed via the movable pin 7 to change the nozzle area. The movable ring 8 is a rod
In order to convert the linear motion of (1) 9 into rotational motion of the movable ring, knobs each having a protruding circular arc surface in the moving direction of the rod are provided on the outer periphery of the movable ring, and the connecting part of rod (1) 9 is Provide a slot for inserting the knob. The engaging part between this knob and the rod (1) 9 is structured such that the cross-sectional shape of the knob is an arcuate surface and the engagement surface of the rod is engaged with a straight slotted surface. This structure converts the linear motion of the movable ring 9 into the rotational motion of the movable ring 8. This knob and rod (1)
The details of the engaging portion with 9 are shown in FIG. Further, the rod (1) 9 is connected to the rod (2) 10 via a pin 11, and the rod (2) 10 is connected to the air cylinder 2. In addition, an expansion joint 12 is attached to the rod (2) 10 by welding, and the other end of the expansion joint 12 is attached to the cover 13 by welding, thereby creating a structure in which the expansion turbine side rod and the air cylinder side external rod are integrally separated. . With respect to the direct movement of the rod (2) 10, the variation in the length of the seal portion is absorbed by the expansion and contraction action of the expansion joint 12, resulting in a variable nozzle drive device that completely seals gas leakage. The variable nozzle drive device described above facilitates the disassembly and assembly work inside the turbine, and has the effect of preventing gas from leaking to the outside.
以上説明したように本発明によれば、タービン
内部での分解組立作業を容易にすることができ
る。
As explained above, according to the present invention, disassembly and assembly work inside the turbine can be facilitated.
第１図は、本発明の一実施例の可変ノズル膨張
タービンのノズル駆動装置全体概略図、第２図
は、同じくノズル駆動装置の詳細断面図、第３図
は第２図のノブとロツドとの係合部の詳細図であ
る。
１……膨張タービン本体、２……空気シリン
ダ、３……ノズル駆動装置、４……ノズル固定リ
ング、５……ノズル、６……固定ピン、７……可
動ピン、８……可動リング、９……ロツド(1)、１
０……ロツド(2)、１１……ピン、１２……伸縮継
手（金属）、１３……カバー。
FIG. 1 is a schematic diagram of the entire nozzle drive device of a variable nozzle expansion turbine according to an embodiment of the present invention, FIG. 2 is a detailed cross-sectional view of the same nozzle drive device, and FIG. FIG. DESCRIPTION OF SYMBOLS 1... Expansion turbine body, 2... Air cylinder, 3... Nozzle drive device, 4... Nozzle fixing ring, 5... Nozzle, 6... Fixed pin, 7... Movable pin, 8... Movable ring, 9... Rod (1), 1
0... Rod (2), 11... Pin, 12... Expansion joint (metal), 13... Cover.
Claims (1)
し、該ノズルの一端を固定ピンで内側の固定リン
グに支持し、他端を可動ピンで回動可能な外側の
可動リングに支持し、可動リングを回転させるこ
とにより可動ピンを円周方向に移動し、ノズルの
角度を変える膨張タービン可変式ノズル駆動装置
において、 前記可動リングの外周部に設けられロツドの移
動方向にそれぞれ円弧面の突出した形状を有する
ノブと、該ノブの円弧面と係合する溝穴面を備え
た接続部を有し直線運動可能に構成したロツドと
を具備したことを特徴とする膨張タービン可変式
ノズル駆動装置。[Claims] 1. A nozzle is arranged around the outer periphery of an impeller of an expansion turbine, one end of the nozzle is supported by a fixed pin on an inner fixed ring, and the other end is rotatable on an outer movable ring with a movable pin. In the expansion turbine variable nozzle drive device, the movable pin is moved in the circumferential direction by rotating the movable ring, and the angle of the nozzle is changed. A variable expansion turbine comprising: a knob having a protruding shape of an arcuate surface; and a rod configured to be capable of linear movement and having a connecting portion with a slotted surface that engages with the arcuate surface of the knob. type nozzle drive device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6059985A JPS60228708A (en) | 1985-03-27 | 1985-03-27 | Variable nozzle driving device for expansion turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6059985A JPS60228708A (en) | 1985-03-27 | 1985-03-27 | Variable nozzle driving device for expansion turbine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60228708A JPS60228708A (en) | 1985-11-14 |
| JPH0372805B2 true JPH0372805B2 (en) | 1991-11-19 |
Family
ID=13146867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6059985A Granted JPS60228708A (en) | 1985-03-27 | 1985-03-27 | Variable nozzle driving device for expansion turbine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60228708A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4910840B2 (en) | 2007-03-30 | 2012-04-04 | 株式会社Ｉｈｉ | Expansion turbine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5094317A (en) * | 1973-12-11 | 1975-07-28 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6231633Y2 (en) * | 1980-04-08 | 1987-08-13 |
-
1985
- 1985-03-27 JP JP6059985A patent/JPS60228708A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5094317A (en) * | 1973-12-11 | 1975-07-28 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60228708A (en) | 1985-11-14 |
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