JPS5844309A - Detector for wear of thrust bearing - Google Patents
Detector for wear of thrust bearingInfo
- Publication number
- JPS5844309A JPS5844309A JP56141079A JP14107981A JPS5844309A JP S5844309 A JPS5844309 A JP S5844309A JP 56141079 A JP56141079 A JP 56141079A JP 14107981 A JP14107981 A JP 14107981A JP S5844309 A JPS5844309 A JP S5844309A
- Authority
- JP
- Japan
- Prior art keywords
- detector
- piston
- gap
- wear
- gap detector
- 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
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B13/00—Measuring arrangements characterised by the use of fluids
- G01B13/12—Measuring arrangements characterised by the use of fluids for measuring distance or clearance between spaced objects or spaced apertures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/12—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load
- F16C17/24—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load with devices affected by abnormal or undesired positions, e.g. for preventing overheating, for safety
- F16C17/246—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load with devices affected by abnormal or undesired positions, e.g. for preventing overheating, for safety related to wear, e.g. sensors for measuring wear
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は例えばタービンクー夕など回転電機のスラスト
軸受の摩耗検出装置に係わり、特に回転体の＄動限界を
間隙検出器により検出することによりスラスト軸受の摩
耗を検出する装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a wear detection device for a thrust bearing of a rotating electric machine such as a turbine cooler, and in particular detects the wear of a thrust bearing by detecting the $ motion limit of a rotating body using a gap detector. It is related to the device.
従来、横型の回転体に於ても高速度回転の場合にはスラ
スト軸受が使用されている。しかし、このスラスト軸受
が長年の使用によって摩耗すると、−転体の横方崗の移
動、即ち横餐れが大きくなり、−転自体の振動の他に回
転体に接続した他の装置に悪影響を及ぼすことがあった
。この為、従来回転体にスラストカラーを設け、このス
ラストカラーの＄動眼界を検出してスラスト軸受の摩耗
を点検する時期の１安としていた。Conventionally, even in horizontal rotating bodies, thrust bearings have been used when rotating at high speeds. However, when this thrust bearing wears out due to long-term use, the lateral movement of the rolling body, in other words, the lateral movement, becomes large, which adversely affects other equipment connected to the rotating body, in addition to the vibration of the rolling body itself. There were times when it had a negative impact. For this reason, conventionally, a thrust collar was provided on the rotary body, and the $ eye movement of this thrust collar was detected and used as a means of checking the wear of the thrust bearing.
第ｉｌｌに従来の摩耗検出装置を示す。第１ＩＩに於て
１は回転体、２及び３は回転体１の横擢れを１止する為
のスラスト軸受、４はスラスト軸受２゜３を図示してい
ない回転機械の外覆に固定する為のブラケット、５はブ
ラケット４に取付けφれた接続片、６は接続片５に取付
けられた間隙検出器である。今スラスト軸受２、又は３
が摩耗すると、回転体１が横方向に移動する事が出来、
回転体１から突起したスラストカラー７も回転体１と一
体に移動し、間隙検出器６とスラストカラー７との間隙
ｙが変化する。この間隙Ｉの長さは間隙検出器６によっ
て検出され、変換器８を介して位置指示器９に表示され
、又設定器１ｏの設定量と比較器１１によって比較され
る。間隙９の変化が大きくなり比較！１１の出力が予定
の範囲を越えると、回転体１の停止信号１１暑が出力さ
れる。The second figure shows a conventional wear detection device. In Part 1II, 1 is a rotating body, 2 and 3 are thrust bearings for stopping the rotating body 1 from rolling sideways, and 4 is a thrust bearing 2.3 fixed to the outer cover of a rotating machine (not shown). 5 is a connecting piece attached to the bracket 4, and 6 is a gap detector attached to the connecting piece 5. Now thrust bearing 2 or 3
When the rotor 1 wears out, the rotating body 1 can move laterally,
The thrust collar 7 protruding from the rotating body 1 also moves together with the rotating body 1, and the gap y between the gap detector 6 and the thrust collar 7 changes. The length of this gap I is detected by a gap detector 6, displayed on a position indicator 9 via a converter 8, and compared with a set amount of a setting device 1o by a comparator 11. The change in gap 9 is large and compared! When the output of 11 exceeds the predetermined range, a stop signal 11 of the rotating body 1 is output.
然るに従来の装置では間隙検出器がブラケットに取付け
た接続片に固定されており、スラスト軸受の摩耗が生じ
ない限り、間隙検出器とスラストカラー間の間隙の長さ
が一定不変であった。この為、位置指示器の指示値や比
較器の出力も一定であり、これら間隙検出器、変換器、
位置指示器。However, in the conventional device, the gap detector is fixed to a connecting piece attached to the bracket, and the length of the gap between the gap detector and the thrust collar remains constant unless the thrust bearing wears out. Therefore, the indicated value of the position indicator and the output of the comparator are constant, and the gap detector, converter,
position indicator.
比較器などの摩耗検出装置の機能を検証するのが困難で
あった。It was difficult to verify the functionality of wear detection devices such as comparators.
本発明は前記に鑑みてなされたもので、間隙検出器の取
付は位置を移動可能な構造とする事によって摩耗検出装
置の機能を検証し易くし、依って信頼性の高い摩耗検出
装置を提供する事を目的とする。又本発明は摩耗検出装
置の機能を検証する試験操作時に回転体の停止信号を鎖
錠する回路を設けることにより、引外し自由に作動確認
の可能な摩耗検出装置を提供する事を目的とする。The present invention has been made in view of the above, and the gap detector is mounted in a structure that allows its position to be moved, thereby making it easier to verify the function of the wear detection device, thereby providing a highly reliable wear detection device. The purpose is to do. Another object of the present invention is to provide a wear detection device that can be tripped freely to confirm its operation by providing a circuit that locks the stop signal of the rotating body during a test operation to verify the function of the wear detection device. .
本発明は回転機械のブラケットに固着されたνヲンダ一
の中に移動可能なピストンを装着し、このピストンに間
隙検出器を取り着け、常時はりリンダ−に内蔵したばね
でピストンを一方向に押圧し、試験時にはＶリンダ−に
穿孔した孔を通して送られる操作用の媒体によってピス
トンを反対方向に移動させ得る構成とし、因って間隙検
出器のスラストカラーに対する相対的位置、をスラスト
軸受の摩耗の度合に依らず自在に変化できるようにした
ものである。In the present invention, a movable piston is installed in a v-shaped body fixed to a bracket of a rotating machine, a gap detector is attached to this piston, and a spring built into a beam cylinder constantly pushes the piston in one direction. During the test, the piston was configured to be able to move in the opposite direction by the operating medium sent through the hole drilled in the V cylinder, so that the relative position of the gap detector to the thrust collar was controlled to prevent wear of the thrust bearing. It is designed to be able to change freely regardless of the degree.
本発明は以上の様に構成しているので、間隙検出器とス
ラストカラー間の間隙の長さを変化させ、それにより間
隙検出器に直接又は変換器を介して接続された位置指示
器の指示値、又は設定器の信号とを比較する比較器の出
力を変化させる事が出来、これら間隙検出器、変換器、
位置指示器、設定器、比較器などの機能を容易に検証で
きる効果を有する。Since the present invention is configured as described above, the length of the gap between the gap detector and the thrust collar is changed, thereby indicating the position indicator connected to the gap detector directly or via a converter. These gap detectors, transducers,
It has the effect of easily verifying the functions of position indicators, setting devices, comparators, etc.
更に、本発明においてはピストンの試験操作回路の信号
を比較器の出力回路に鎖錠条件として構成する。これに
よって回転体を停止させる事な（自由に摩耗検出装置を
作動させる事ができるという効果を有する。Furthermore, in the present invention, a signal from the piston test operation circuit is configured as a locking condition for the output circuit of the comparator. This has the effect of allowing the wear detection device to operate freely without stopping the rotating body.
以下本発明の一実施例を図面を参照して説明する。第２
図に於て１は回転体でありスラスト軸受２．３により横
方向の移動が制限されている。４はブラケットでありス
ラスト軸受２，３を図示していない回転機械の外覆に固
定している。５は接続片でありＶリンダ−６ｍをブラケ
ット４に固着している。Ｖリンダ−６ａにはばね６ｂが
内蔵され、ピストン６Ｃが嵌合されており、更にνすｙ
ダ−６１には油などの操作用媒体が通れるよう孔６ｄが
穿孔されている。又ピストン６Ｃには間隙検出器６がａ
ツクナラ）５ｅによって取付けられているー。間隙検出
！６としては磁石とホール素子とを組合せたもの、或は
コイルの相互インダクタンスを検出するものなどが適用
できる０間隙検出器６からは信号取出用の制御線６ｆが
接続されており、制御線６ｆの貫通用としてピストン６
Ｃには穴６ｇが開口している。制御線６ｆによって取出
された信号は変換器＆を介して位置指示器９及び比較５
１１１に接続される。比較器１１は設定器１０からの信
号と比較し出力信号１１−を出すように構成されている
。An embodiment of the present invention will be described below with reference to the drawings. Second
In the figure, 1 is a rotating body whose lateral movement is restricted by thrust bearings 2.3. A bracket 4 fixes the thrust bearings 2 and 3 to the outer cover of a rotating machine (not shown). A connecting piece 5 fixes the V cylinder 6m to the bracket 4. The V cylinder 6a has a built-in spring 6b and a piston 6C fitted therein.
A hole 6d is bored in the door 61 so that an operating medium such as oil can pass therethrough. Also, a gap detector 6 is installed on the piston 6C.
It is installed by Tsukunara) 5e. Gap detection! A control line 6f for signal extraction is connected to the 0-gap detector 6, which can be a combination of a magnet and a Hall element, or one that detects the mutual inductance of a coil. Piston 6 for penetrating
A hole 6g is opened in C. The signal taken out by the control line 6f is sent to the position indicator 9 and the comparator 5 via the converter &.
111. The comparator 11 is configured to compare the signal from the setting device 10 and output an output signal 11-.
次に本発明の作用に就て説明する。回転体１と接触する
スラスト軸受２．３が摩耗すると回転体１は横方向に移
動し、従って回転体１と一体構造のスラストカラー７も
移動する。この為、間隙検出器６とスラストカラー７と
の間隙ｌが変化し、間隙検出器６の信号は制御線６ｆを
通して変換器＄を介し位置指示器９並びに比較器１１に
入力され、比較器１１は予め設定された設定器１０の信
号量と比較し、間隙ｌが限界値を越えると 出力）
信号１１ｍを出す。然るに本発明の摩耗検出装置に於て
は以上の他にスラスト軸受の摩耗が生じていない場合に
も等価の作用な生ぜしめる事が出来る。Next, the operation of the present invention will be explained. When the thrust bearing 2.3 in contact with the rotating body 1 wears out, the rotating body 1 moves laterally, and thus the thrust collar 7, which is integral with the rotating body 1, also moves. Therefore, the gap l between the gap detector 6 and the thrust collar 7 changes, and the signal from the gap detector 6 is inputted to the position indicator 9 and comparator 11 via the control line 6f and the converter $, is compared with the preset signal amount of the setting device 10, and if the gap l exceeds the limit value, a signal 11m is output. However, in addition to the above, the wear detection device of the present invention can produce an equivalent effect even when the thrust bearing is not worn.
即ち孔６ｄから図示しない操作用の媒体な富６ｈに送り
込む事によりばね６ｂを圧縮させながらピストン６Ｃを
移動させる。ピストン６ｃを移動させるとピストン６Ｃ
に取付けた間隙検出器６も移動する事になりスラストカ
ラー７の位置が変わらなくても間隙ｌの、長さを変化さ
せる事ができる。That is, by feeding the operating medium 6h (not shown) through the hole 6d, the piston 6C is moved while compressing the spring 6b. When the piston 6c is moved, the piston 6C
Since the gap detector 6 attached to the gap l is also moved, the length of the gap l can be changed without changing the position of the thrust collar 7.
この結果前記と同様、位置指示器９の指示値を変化させ
ることができ、その限界値において比較器１１の出力信
号１１ｍを生ぜしめる事が出来る。As a result, as described above, the indicated value of the position indicator 9 can be changed, and the output signal 11m of the comparator 11 can be generated at its limit value.
以上の通り本発明に於ては、間隙検出器６を移動可能な
ピストン６Ｃに取付け、ビ不トンがＶ９ンダー内をばね
６ｂの力に打勝って移動する時に間隙検出器も付随して
移動できるように構成したので、スラストカラー７の位
置が変動しなくても、間隙検出器のスラストカラーに対
する相対的位置を変化させる事ができ、この変化を位置
指示器９又は比較器１１の出力信号１１畠によって確認
することによって間隙検出器、変換器、位置指示器、比
較器、設定器などの機能を検証するのが非常に容易とな
り、信頼性の高い摩耗検出装置を提供する事ができる。As described above, in the present invention, the gap detector 6 is attached to the movable piston 6C, and when the biton moves within the V9 under the force of the spring 6b, the gap detector also moves accordingly. Therefore, even if the position of the thrust collar 7 does not change, the relative position of the gap detector to the thrust collar can be changed, and this change can be reflected in the output signal of the position indicator 9 or the comparator 11. By confirming the functions of the gap detector, transducer, position indicator, comparator, setting device, etc., it becomes very easy to verify the functions of the gap detector, transducer, position indicator, comparator, setting device, etc., and a highly reliable wear detection device can be provided.
また本発明によればピストン６ｃの復帰力としてばね６
ｂを使用したので間隙検出器６は常に安定した復原位置
を得られる効果がある。Further, according to the present invention, the spring 6 is used as the return force of the piston 6c.
Since the gap detector 6 is used, it has the effect that the gap detector 6 can always obtain a stable resting position.
次に本発明の試験操作時の鎖錠作動について第３Ｉｌの
実施例の要部によって説明する。ＩＬｍは前述した出力
信号であり、これは回転体の停止信号として出力される
。１２は試験操作用のスイッチ、１３は鎖錠回路、ｌｌ
ｂは鎖錠回路の出力信号、１４は表示装置、１５はピス
トン運転制御回路、１５５ｍはピストン制御用媒体の作
動信号である。通常の運転状態に於て摩耗により間隙検
出器の出力が予電値以上変化すると出力信号１１ｍが生
じ鎖錠回路１３に与えられるがスイン？１２からの信号
がないので、鎖錠回路はこの信号を阻止することなくそ
のま＼通過させ回転体の停止信号１１ｂが発せられ、表
示装置１４に信号が表示される。摩ヤの生じていない通
常の運転状態においてスイン？１２を閉じることにより
試験状態にすると、ピストン゛運転制御回路１５によっ
てビスシン操作用媒体の作動信号１５ｍが発せられ、図
示しない媒体輸送装置により前記したピストン６ｃの孔
６ｄに媒体が送られ、これによってピストン６ｃが移動
する事になる。前記した様にピストン移動に依り出力信
号１１麿が与えられるが、この場合には摩耗検出装置は
試験状態にあるので鎖錠回路１３によって出力信号１１
畠は阻止され、回転体の停止信号１１ｂは発せられない
。Next, the locking operation during the test operation of the present invention will be explained using the main part of the third embodiment. ILm is the aforementioned output signal, which is output as a stop signal for the rotating body. 12 is a switch for test operation, 13 is a locking circuit, ll
b is the output signal of the locking circuit, 14 is the display device, 15 is the piston operation control circuit, and 155m is the actuation signal of the piston control medium. In normal operating conditions, when the output of the gap detector changes by more than the pre-charge value due to wear, an output signal 11m is generated and given to the locking circuit 13, but is it a switch? Since there is no signal from 12, the lock circuit allows this signal to pass without blocking it, and a stop signal 11b for the rotating body is issued, and the signal is displayed on the display device 14. Does it swing under normal operating conditions with no wear? 12 is put into the test state by closing the piston 6c, the piston operation control circuit 15 issues an activation signal 15m for the medium for operating the screws, and the medium is sent to the hole 6d of the piston 6c by a medium transport device (not shown). The piston 6c will move. As mentioned above, the output signal 11 is given due to the movement of the piston, but in this case, since the wear detection device is in the test state, the output signal 11 is given by the locking circuit 13.
The field is blocked, and the stop signal 11b for the rotating body is not issued.
以上の通り本発明に於ては摩耗検出装置の試験時に於る
出力信号の鎖錠回路を備えたので、回転体の運転状態、
停止状態を問わず自由に摩耗検出装置を作動させる事が
できるので、信頼性の確証に大きな効果を有する。As described above, since the present invention includes a locking circuit for output signals during testing of the wear detection device, the operating state of the rotating body,
Since the wear detection device can be operated freely regardless of the stopped state, it has a great effect on confirming reliability.
第１図は従来の摩耗検出装置の概略構成図、第２図は本
発明の摩耗検出装置の一実施一を示す概略構成図、第３
図は本発明の装置の鴎の要■を示すプロツク線図である
。
１ 回転体 ２．３ スラスト軸受４
ブラケット ５ 接続片
６ 間隙検出器 ６ｍ シリンダー６ｂ
ばね ６Ｃピストン１０ 設定器
１１ 比較器１３ 鎖錠回路 １４
表示装置（７３１７）代理人 弁理士 則 近 憲
佑（ほか１名）FIG. 1 is a schematic configuration diagram of a conventional wear detection device, FIG. 2 is a schematic configuration diagram showing one embodiment of the wear detection device of the present invention, and FIG.
The figure is a block diagram showing the essential features of the apparatus of the present invention. 1 Rotating body 2.3 Thrust bearing 4
Bracket 5 Connection piece 6 Gap detector 6m Cylinder 6b
Spring 6C piston 10 Setting device
11 Comparator 13 Lock circuit 14
Display device (7317) Agent Patent attorney Nori Chika
Yu (1 other person)
Claims (1)
リンダーと、前記シリンダーと嵌合し１儒をばねによっ
て押圧され他側を操作用媒体に連通されたピストンと、
前記ピストンに取付けられ前記回転機械のスラストカラ
ーに対向する間隙検出器と前記間隙検出器の出力の予定
値において出力を生ずる回路とを備えたスラスト軸受の
摩耗検出装置。 （２） 回転機械のブラケットに一体に固着されたり
リンダ−と、前記シリンダーと嵌合し１儒をばねによっ
て押圧され他側を操作用媒体に連通されたビス）ｙと、
前記ピストンに取付けられ鍍記回転機械のスラストカラ
ーに対向する間隙検出器と、前記間隙検出器の出力の予
定値において鋳紀回転機械の停止信号を生ずる回路と、
鋳記操作用媒体による前記ピストンの変位ｌ；関連して
１記停止信号を鎮錠する回路とを備えたスラスト軸受の
摩耗検出装置。[Scope of Claims] 111. A cylinder that is integrally fixed to a bracket of a rotating machine; a piston that is fitted into the cylinder, is pressed by a spring, and has its other side communicated with an operating medium;
A wear detection device for a thrust bearing, comprising: a gap detector attached to the piston and facing a thrust collar of the rotating machine; and a circuit that produces an output at a predetermined value of the output of the gap detector. (2) A screw (y) that is integrally fixed to the bracket of the rotating machine or is fitted with the cylinder, is pressed by a spring, and has its other side communicated with the operating medium;
a gap detector attached to the piston and facing a thrust collar of the rotary machine, and a circuit that generates a stop signal for the rotary machine at a predetermined value of the output of the gap detector;
A wear detection device for a thrust bearing, comprising: a displacement l of the piston due to a casting operating medium; and a related circuit for locking a stop signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56141079A JPS5844309A (en) | 1981-09-09 | 1981-09-09 | Detector for wear of thrust bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56141079A JPS5844309A (en) | 1981-09-09 | 1981-09-09 | Detector for wear of thrust bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5844309A true JPS5844309A (en) | 1983-03-15 |
Family
ID=15283722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56141079A Pending JPS5844309A (en) | 1981-09-09 | 1981-09-09 | Detector for wear of thrust bearing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5844309A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61113691U (en) * | 1984-12-10 | 1986-07-18 | ||
| JPS61228118A (en) * | 1985-03-29 | 1986-10-11 | Sumitomo Metal Ind Ltd | Diagnostic device of damage and deterioration in bearing for low speed |
| KR101170518B1 (en) | 2011-12-30 | 2012-08-01 | 석원산업 주식회사 | Apparatus of measuring level of thrust collar of hydraulic turbine generator |
-
1981
- 1981-09-09 JP JP56141079A patent/JPS5844309A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61113691U (en) * | 1984-12-10 | 1986-07-18 | ||
| JPH0417101Y2 (en) * | 1984-12-10 | 1992-04-16 | ||
| JPS61228118A (en) * | 1985-03-29 | 1986-10-11 | Sumitomo Metal Ind Ltd | Diagnostic device of damage and deterioration in bearing for low speed |
| KR101170518B1 (en) | 2011-12-30 | 2012-08-01 | 석원산업 주식회사 | Apparatus of measuring level of thrust collar of hydraulic turbine generator |
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