JPS61195325A - Thrust loading device for rotary shaft - Google Patents
Thrust loading device for rotary shaftInfo
- Publication number
- JPS61195325A JPS61195325A JP3712985A JP3712985A JPS61195325A JP S61195325 A JPS61195325 A JP S61195325A JP 3712985 A JP3712985 A JP 3712985A JP 3712985 A JP3712985 A JP 3712985A JP S61195325 A JPS61195325 A JP S61195325A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- thrust load
- load
- turbine rotor
- shaft
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/12—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring axial thrust in a rotary shaft, e.g. of propulsion plants
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、タービンロータ軸等の回転軸のスラスト荷重
負荷装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a thrust load loading device for a rotating shaft such as a turbine rotor shaft.
第２図は、この種の従来装置をタービンロータ軸に適用
し、スラスト計検足装置を構成した場合の一例を示す。FIG. 2 shows an example in which a conventional device of this kind is applied to a turbine rotor shaft to constitute a thrust meter foot inspection device.
即ち、タービンロータ軸１の一方端において、この軸芯
方向に対向するようにしてスラスト荷重負荷軸２（以下
負荷軸２と略称）が設置されている。負荷軸２の対向先
端部には基準スラスト荷重検出器３が備わり、また軸中
央部に螺旋されたネジ部２ａを介して支持ブラケット４
に回動自在に負荷軸２が軸支され、後端部には回転用工
具が係合して負荷軸２を廻し得るように工具係合部２ｂ
が形成された形となっている。負荷軸２の先端部の検出
器３からは、スラスト荷重を検出してこの検出信号を増
幅器５へ送るための出力コード６が外部に引き出されて
いる。That is, at one end of the turbine rotor shaft 1, a thrust load loading shaft 2 (hereinafter abbreviated as load shaft 2) is installed so as to face the shaft in the axial direction. A reference thrust load detector 3 is provided at the opposing tip of the load shaft 2, and a support bracket 4 is provided via a threaded portion 2a spirally provided at the center of the shaft.
A load shaft 2 is rotatably supported on the rear end thereof, and a tool engaging portion 2b is provided at the rear end so that a rotating tool can engage and rotate the load shaft 2.
It is shaped like this. An output cord 6 for detecting a thrust load and sending a detection signal to an amplifier 5 is led out from a detector 3 at the tip of the load shaft 2.
−万、タービンロータ軸１は、固足されたロータディス
ク７の両側において一対のベアリング軸受８．９を介し
て回転自在に軸支されている。- The turbine rotor shaft 1 is rotatably supported on both sides of the fixed rotor disk 7 via a pair of bearings 8.9.
−万のベアリング軸受８にはその両側から対向するよう
にして一対のスラスト荷重計測用のロードセル１０．１
０が設置され、ベアリング軸受８を介してタービンロー
タ軸１に作用するスラスト荷重の出力電圧を計測できる
ようになっている。- A pair of load cells 10.1 for thrust load measurement are provided on both sides of the bearing 8.
0 is installed so that the output voltage of the thrust load acting on the turbine rotor shaft 1 via the bearing 8 can be measured.
か＼る構造のタービンロータ軸１の一方端において、上
記した負荷＃＋２側の検出器３がスラストポール軸受１
１を介して当接するようになっている。At one end of the turbine rotor shaft 1 having such a structure, the detector 3 on the load #+2 side is connected to the thrust pole bearing 1.
1.
こうして、運転時回転中のタービンロータ軸１に対して
、工具保合部２ｂに専用工具を係合して負荷軸２を回動
せしめて、負荷軸２を矢印Ａ方向のタービンロータ１軸
に当接する方向に移動せしめる。この時、予め設定され
ている基準スラスト荷重値を検出器３が検出するように
、その基準値を増幅器５側で監視しつつ負荷軸２を回動
せしめ、スラストポール軸受１１を介してタービンロー
タ軸ｌに基準スラスト荷重を負荷せしめる。即ち、基準
スラスト荷重を負荷することによって、これをロードセ
ル１０．１０が計測し、この計測値を負荷軸２ｆｌｉＩ
の検出器３における基準スラスト荷重値と比較して、タ
ービンロータ軸１の回転時の、ロードセル１０．１０の
スラスト荷重較正を行なう。In this way, the special tool is engaged with the tool holding part 2b of the turbine rotor shaft 1 which is rotating during operation, and the load shaft 2 is rotated, so that the load shaft 2 is aligned with the turbine rotor shaft 1 in the direction of arrow A. Move it in the direction of contact. At this time, the load shaft 2 is rotated while the reference value is monitored on the amplifier 5 side so that the detector 3 detects a preset reference thrust load value, and the turbine rotor is A standard thrust load is applied to shaft l. That is, by applying a reference thrust load, the load cell 10.10 measures this, and this measurement value is applied to the load axis 2fliI.
The thrust load of the load cell 10.10 is calibrated when the turbine rotor shaft 1 rotates by comparing it with the reference thrust load value in the detector 3.
か＼る従来のスラスト荷重負荷装置の場合、負荷軸２に
よる基準のスラスト荷重がタービンロータ軸１に対して
一方向のみ、即ち第２図の矢印入方向のみしか作用させ
ることが出来ない方式であるが故、運転条件によって矢
印Ａの逆方向へ基準スラスト荷重を作用させるような場
合に対応出来ないと云う不具合があった。In the case of such a conventional thrust load loading device, the standard thrust load by the load shaft 2 can only be applied to the turbine rotor shaft 1 in one direction, that is, in the direction indicated by the arrow in FIG. Therefore, there was a problem in that it was not possible to deal with cases where the standard thrust load was applied in the opposite direction of arrow A depending on the operating conditions.
本発明は、上記した従来装置の不具合を解消すべくなさ
れたものであり、運転条件によってＪＷｔ−牛÷回転軸
の軸芯方向の左右何れの向きにもスラスト荷重を負荷す
ることが可能な装置の提供を目的としている。The present invention was made in order to solve the above-mentioned problems of the conventional device, and is a device that can apply a thrust load in either the left or right direction in the axial direction of the rotating shaft depending on the operating conditions. The purpose is to provide
この目的達成のために、本発明による回転軸のスラスト
荷重負荷装置においては、回転軸の一方端部において円
盤状の受圧ピストンが一体的に結合され、この受圧ピス
トンがシール部材を介して筒状圧力容器に往復動自在且
つ摺動自在に嵌装され、受圧ピストンによって圧力容器
内部を大気圧室と圧力室とに隔成して、上記圧力室に流
体圧供給部から所定圧の圧力流体又は負圧流体の何れか
が供給されて、受圧ピストンを介して回転軸が左右何れ
かの方向に移動する構成となされている。To achieve this objective, in the thrust load loading device for a rotating shaft according to the present invention, a disk-shaped pressure receiving piston is integrally connected to one end of the rotating shaft, and this pressure receiving piston is connected to a cylindrical shape through a sealing member. It is reciprocatably and slidably fitted into the pressure vessel, and a pressure receiving piston separates the inside of the pressure vessel into an atmospheric pressure chamber and a pressure chamber, and the pressure chamber is supplied with pressurized fluid or fluid at a predetermined pressure from a fluid pressure supply section. The rotating shaft is configured to move in either the left or right direction via the pressure receiving piston when either negative pressure fluid is supplied.
以下、第１図を参照しつつ本発明のスラスト荷重負荷装
置を従来の技術において説明したのと同様に、タービン
ロータ軸に適用して、スラスト計検定装置を構成した場
合について述べる。なお。Hereinafter, with reference to FIG. 1, a case will be described in which the thrust load applying device of the present invention is applied to a turbine rotor shaft to constitute a thrust meter verification device in the same manner as described in the prior art. In addition.
第２図の従来例の説明で用いられた符号に共通すに螺着
され、該ピストン２１を往復摺動自在に包合するように
して円筒状の圧力容器２２が支持台２３に固定担持され
ている。即ち、受圧ピストンて大気から気液密的に隔成
している。なお、シール部材２４としては、圧力容器２
２の内周面にも設けて受圧ピストン２１側のピストンリ
ング状シール部材２４に対をなすようにしても良い。又
、圧力容器２２は圧力流体を供給するニアコンプレッサ
２５にエア管路２６を介して連通し、エア管路２６の途
中にはエア圧力計２７及び圧力エア流いて述べる。運転
条件によって、タービンロータ軸ｌに対して例えば図の
左方向（矢印Ａ＋）に向かって設定された基準のスラス
ト荷重を作用させる場合、ニアコンプレッサ２５の作動
によって、圧縮エア（矢印ａ、）を管路２６から圧力容
器２２内に送り込む。この時の圧縮エアａ、の圧力は基
準圧としてエア圧力計２７の表示により監視される。A cylindrical pressure vessel 22 is fixedly supported on a support base 23, and is screwed onto the same reference numerals as those used in the explanation of the conventional example in FIG. ing. That is, the pressure receiving piston is separated from the atmosphere in a gas-liquid tight manner. In addition, as the sealing member 24, the pressure vessel 2
It may also be provided on the inner circumferential surface of the piston 2 so as to form a pair with the piston ring-shaped seal member 24 on the pressure receiving piston 21 side. Further, the pressure vessel 22 communicates with a near compressor 25 that supplies pressurized fluid via an air line 26, and an air pressure gauge 27 and an air pressure gauge 27 are provided in the middle of the air line 26. Depending on the operating conditions, if a standard thrust load is applied to the turbine rotor axis l, for example in the left direction (arrow A+) in the figure, the compressed air (arrow a) is supplied by the operation of the near compressor 25. It is fed into the pressure vessel 22 through the pipe line 26. The pressure of the compressed air a at this time is monitored as a reference pressure by the display on the air pressure gauge 27.
こうして、基準圧に設定された圧縮エアａｉによる押圧
力が受圧ピストン２１に作用し、この受圧ピストン２１
を介してタービンロータ軸１に矢印Ａ、力方向のスラス
ト荷重として作用するのである。In this way, the pressing force by the compressed air ai set to the reference pressure acts on the pressure receiving piston 21, and this pressure receiving piston 21
It acts on the turbine rotor shaft 1 as a thrust load in the force direction indicated by arrow A.
この基準スラスト荷重値とロードセル１０．１０におけ
る計測値とから、ロードセル１０．１０のスラスト荷重
較史を行なうことは、従来例にて説明された通りである
。The thrust load history of the load cell 10.10 is performed from this reference thrust load value and the measured value of the load cell 10.10, as described in the conventional example.
一方、タービンロータ軸１に対して図の右方向の矢印Ａ
、力方向向って基準スラスト荷重を作用させる場合は、
ニアコンプレッサ２５の作動によって、管路２６内を吸
入負圧（矢印ａ、）とし、この吸入負圧ａ、によって圧
力容器２２内の受圧ピストン２１を大気圧とのバランス
がとれる迄矢印Ａ。On the other hand, arrow A in the right direction in the figure with respect to the turbine rotor shaft 1
, when applying the standard thrust load in the force direction,
The operation of the near compressor 25 creates suction negative pressure (arrow a) in the pipe line 26, and this suction negative pressure a causes the pressure-receiving piston 21 in the pressure vessel 22 to maintain balance with the atmospheric pressure (arrow A).
方向に吸引せしめるのである。かＮる吸引力がスラスト
荷重として受圧ピストン２１を介してタービンロータ軸
１に作用し、これを矢印Ａ、方向に移動せしめるのであ
る。It causes attraction in the direction. This suction force acts as a thrust load on the turbine rotor shaft 1 via the pressure receiving piston 21, causing it to move in the direction of arrow A.
上記したことから理解されるように、本発明による回転
軸のスラスト荷重負荷装置によれば、流体の加圧押圧力
または負圧吸引力を利用して、運転中の回転軸に対して
軸芯方向に、左右任意の向きに切換えて、スラスト荷重
を負荷することができると言う工業的に極めて大きなメ
リットがもたらされる。As can be understood from the above, according to the thrust load loading device for a rotating shaft according to the present invention, the shaft centering is applied to the rotating shaft during operation by using pressurizing force or negative pressure suction force of the fluid. This provides an extremely large industrial advantage in that the thrust load can be applied by switching the direction to any left or right direction.
第１図は本発明の実施例であるスラスト荷重負荷装置の
縦断面図、第２図はかＮる従来例装置の縦断面図である
。
主要部分の符号の説明
１・・・タービンロータ軸、２・・・負荷軸、３・・・
基準２６・・・圧力エア管路。FIG. 1 is a vertical cross-sectional view of a thrust load applying device according to an embodiment of the present invention, and FIG. 2 is a vertical cross-sectional view of a conventional device. Explanation of symbols of main parts 1...Turbine rotor shaft, 2...Load shaft, 3...
Standard 26: Pressure air pipe.
Claims (1)
スト荷重を負荷する装置であって、上記回転軸の端部へ
同軸に取り付けられた円盤と、同円盤の外周面に嵌装さ
れたピストンリングと、上記回転軸の端部および円盤が
軸方向に挿入され流体圧アクチュエータを構成する筒と
、同筒内に所定圧力の流体を供給する流体供給装置とを
有することを特徴とするスラスト荷重負荷装置。A device that applies a thrust load to a rotating shaft rotatably held by a thrust bearing, which includes a disk coaxially attached to the end of the rotating shaft, and a piston ring fitted to the outer peripheral surface of the disk. , a thrust load loading device comprising: a cylinder into which the end of the rotating shaft and the disc are inserted in the axial direction to constitute a fluid pressure actuator; and a fluid supply device that supplies fluid at a predetermined pressure into the cylinder. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3712985A JPS61195325A (en) | 1985-02-26 | 1985-02-26 | Thrust loading device for rotary shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3712985A JPS61195325A (en) | 1985-02-26 | 1985-02-26 | Thrust loading device for rotary shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61195325A true JPS61195325A (en) | 1986-08-29 |
Family
ID=12488999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3712985A Pending JPS61195325A (en) | 1985-02-26 | 1985-02-26 | Thrust loading device for rotary shaft |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61195325A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0317285U (en) * | 1989-06-30 | 1991-02-20 | ||
| JPH04169828A (en) * | 1990-11-01 | 1992-06-17 | Hino Motors Ltd | Method and apparatus for detecting riveting pressure of riveting machine |
| KR100758703B1 (en) * | 2004-12-03 | 2007-09-14 | 한국항공우주연구원 | The precision thrust measurement system for low thrust engine |
| JP2015120098A (en) * | 2013-12-20 | 2015-07-02 | 株式会社神戸製鋼所 | Method for calibration of thrust load measuring device in closed kneading device |
-
1985
- 1985-02-26 JP JP3712985A patent/JPS61195325A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0317285U (en) * | 1989-06-30 | 1991-02-20 | ||
| JPH04169828A (en) * | 1990-11-01 | 1992-06-17 | Hino Motors Ltd | Method and apparatus for detecting riveting pressure of riveting machine |
| KR100758703B1 (en) * | 2004-12-03 | 2007-09-14 | 한국항공우주연구원 | The precision thrust measurement system for low thrust engine |
| JP2015120098A (en) * | 2013-12-20 | 2015-07-02 | 株式会社神戸製鋼所 | Method for calibration of thrust load measuring device in closed kneading device |
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