JPH09138179A - Balance test machine with measurement preservation mechanism - Google Patents
Balance test machine with measurement preservation mechanismInfo
- Publication number
- JPH09138179A JPH09138179A JP7319543A JP31954395A JPH09138179A JP H09138179 A JPH09138179 A JP H09138179A JP 7319543 A JP7319543 A JP 7319543A JP 31954395 A JP31954395 A JP 31954395A JP H09138179 A JPH09138179 A JP H09138179A
- Authority
- JP
- Japan
- Prior art keywords
- measurement
- maintenance mechanism
- display
- motor
- comparator
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、例えば、エンジン
のクランクシャフト等の動的（回転時）不釣合いを高速
回転のもとで計測するようにした釣合い試験機に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a balance tester for measuring dynamic (during rotation) imbalance of an engine crankshaft or the like under high speed rotation.
【０００２】[0002]
【従来の技術】一般に、エンジンのクランクシャフト等
の動的不釣合いの計測に、釣合い試験機（バランサ）が
用いられている。2. Description of the Related Art Generally, a balance tester (balancer) is used for measuring a dynamic imbalance of an engine crankshaft or the like.
【０００３】[0003]
【発明が解決しようとする課題】ところで、上述のよう
な従来の釣合い試験機では、外部から大きな振動（例え
ば地震等による振動）が与えられると、計測値に変動が
生じるという問題点がある。本発明は、このような問題
点の解消をはかろうとするもので、釣合い試験機の機枠
に装着された振動センサからの検出信号に基づき、地震
等の外乱に対処できるようにして、釣合い試験機の計測
値の信頼性を高められるようにした、計測保全機構付き
釣合い試験機を提供することを目的とする。By the way, the conventional balance testing machine as described above has a problem in that the measured value fluctuates when a large vibration (for example, a vibration due to an earthquake) is applied from the outside. The present invention is intended to solve such a problem, and based on a detection signal from a vibration sensor mounted on a machine frame of a balance testing machine, it is possible to cope with a disturbance such as an earthquake and the like. It is an object of the present invention to provide a balance testing machine with a measurement maintenance mechanism that can improve the reliability of the measurement value of the testing machine.
【０００４】[0004]
【課題を解決するための手段】本発明は、試料を支持す
る回転軸と、同回転軸の駆動用モータと、光変位センサ
と、同光変位センサで検出された上記試料の変位に基づ
き同試料の動的不釣合いを演算する演算器とをそなえた
釣合い試験機において、上記の回転軸およびモータを支
持する機枠に振動センサと、同振動センサからの振動検
出信号を設定レベルと比較する比較器とを設けるととも
に、同比較器で比較される上記振動検出信号が上記設定
レベルを超えた異常事態の際に、同比較器からの出力信
号により上記のモータおよび演算器の作動を停止させる
計測保全機構を設けて課題解決の手段としている。According to the present invention, a rotary shaft supporting a sample, a drive motor for the rotary shaft, an optical displacement sensor, and a displacement of the sample detected by the optical displacement sensor are used. In a balance tester equipped with a calculator for calculating the dynamic imbalance of a sample, a vibration sensor is compared to the vibration detection signal from the vibration sensor on the machine frame supporting the rotary shaft and the motor. A comparator is provided, and when the vibration detection signal compared by the comparator exceeds the set level, the output signal from the comparator stops the operation of the motor and the computing unit. A measurement and maintenance mechanism is provided as a means for solving problems.
【０００５】また、上記演算器で求められた計測値を表
示すべく同演算器に接続された表示器を設け、上記異常
事態の際に、上記計測保全機構が上記表示器に表示され
る計測値を削除するとともに、同表示器に警報を表示す
るように構成して課題解決の手段としている。Further, a display unit connected to the arithmetic unit is provided to display the measured value obtained by the arithmetic unit, and the measurement maintenance mechanism displays the measurement value on the display unit in the case of the abnormal situation. The value is deleted and an alarm is displayed on the same display device as a means for solving the problem.
【０００６】さらに、上記異常事態の際に、上記計測保
全機構により作動を停止された上記のモータおよび演算
器を、それらの作動停止から所要時間の経過後に再作動
させるタイマ機構を、上記計測保全機構に付設して課題
解決の手段としている。Further, in the event of the abnormal situation, a timer mechanism for reactivating the motor and the computing unit, which have been deactivated by the measurement and maintenance mechanism, after a lapse of a required time from the deactivation of the motor and the arithmetic unit, is provided for the measurement and maintenance. It is attached to the mechanism to solve the problems.
【０００７】本発明の計測保全機構付き釣合い試験機で
は、機枠に装着された振動センサが、設定レベルを超え
る振動を検出した異常事態の際に、同センサからの振動
検出信号を設定レベルと比較する比較器からの出力信号
により、計測保全機構がモータおよび演算器の作動を自
動的に停止させる作用を行なう。In the balance testing machine with the measurement and maintenance mechanism of the present invention, when the vibration sensor mounted on the machine frame detects a vibration exceeding the set level, the vibration detection signal from the sensor is set as the set level. The measurement maintenance mechanism automatically stops the operation of the motor and the arithmetic unit according to the output signal from the comparator to be compared.
【０００８】また、上記異常事態の発生時には、上記硬
さ演算器に接続された表示器に表示される計測値が、上
記計測保全機構によって自動的に削除され、さらに同表
示器には警報が表示される。さらに、上記計測保全機構
に付設されたタイマ機構の作用で、上記異常事態の際に
作動を停止された上記のモータおよび演算器は、それら
の作動停止から所要時間の経過後に自動的に再作動させ
られるようになる。When the above-mentioned abnormal situation occurs, the measurement value displayed on the display connected to the hardness calculator is automatically deleted by the measurement maintenance mechanism, and an alarm is displayed on the display. Is displayed. Further, the operation of the timer mechanism attached to the measurement maintenance mechanism causes the motor and the arithmetic unit, which have been deactivated during the abnormal situation, to automatically reactivate after a lapse of a required time from their deactivation. You will be able to.
【０００９】[0009]
【発明の実施の形態】以下、図面により本発明の一実施
形態としての計測保全機構付き釣合い試験機について説
明すると、図１はその概略構成を模式的に示す説明図で
ある。BEST MODE FOR CARRYING OUT THE INVENTION A balance testing machine with a measurement and maintenance mechanism as an embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory view schematically showing its schematic configuration.
【００１０】図１に示すように、この釣合い試験機に
は、機枠１にバネ４，４を介してそれぞれ支持された一
対の試料支持用回転軸２，２および一方の回転軸２に接
続された回転軸駆動用モータ３が設けられており、一対
の回転軸２，２間に取り付けられた試料５を高速回転さ
せた際、試料５のアンバランスに伴う変位（この変位
は、試料５に重さのアンバランス部があると遠心力の作
用により、その部分のみが変形することにより発生す
る）を検出して変位信号を発生する光変位センサ６が設
けられている。As shown in FIG. 1, this balance testing machine is connected to a pair of sample supporting rotary shafts 2 and 2 supported on a machine frame 1 via springs 4 and 4 and one rotary shaft 2 respectively. When the sample 5 mounted between the pair of rotary shafts 2 and 2 is rotated at high speed, the displacement due to the imbalance of the sample 5 (this displacement is If there is an unbalanced portion of the weight, the optical displacement sensor 6 is provided for detecting the displacement signal generated by the deformation of only that portion due to the action of the centrifugal force.
【００１１】さらに、光変位センサ６で検出された変位
信号に基づき試料５の動的不釣合いを演算する演算器
（ＣＰＵ）７が設けられるほか、演算器７で求められた
動的不釣合いを表示する表示器８が、演算器７に接続さ
れている。また、機枠１には、複数の振動センサ９ａ，
９ｂ・・・が設けられている。振動センサ９ａ・・・
は、例えばＸ方向，Ｙ方向およびＺ方向の外乱信号（例
えば地震振動）をそれぞれ検出するために設けられてい
て、各振動センサ９ａ・・・からの各振動検出信号は、
比較器11を介して計測保全機構12に入力されるようにな
っている。Further, in addition to a computing unit (CPU) 7 for computing the dynamic imbalance of the sample 5 based on the displacement signal detected by the optical displacement sensor 6, the dynamic imbalance obtained by the computing unit 7 is calculated. The display unit 8 for displaying is connected to the computing unit 7. Further, the machine casing 1 has a plurality of vibration sensors 9a,
9b ... are provided. Vibration sensor 9a ...
Is provided for detecting disturbance signals (for example, seismic vibration) in the X direction, the Y direction, and the Z direction, respectively, and each vibration detection signal from each vibration sensor 9a ...
It is adapted to be input to the measurement maintenance mechanism 12 via the comparator 11.
【００１２】比較器11に設定器13が接続されていて、振
動センサ９ａ・・・からの振動検出信号が、設定器13に
設定された振動の設定レベルを超える異常事態の際に
は、比較器11からの出力信号により、演算器７の作動お
よびモータ３の回転を停止させる信号発生回路が、計測
保全機構12に設けられている。そして、計測保全機構12
は、上記異常事態の際に、表示器８に表示された不釣合
い表示を解除できるように、表示器８に接続されてい
て、その削除の際に警報を表示できるように構成されて
いる。また、上記異常事態の際に、計測保全機構12によ
り作動を停止させられたモータ３および演算器７を、そ
れらの作動停止から所要時間の経過後に再作動させるタ
イマ機構14が、計測保全機構12に付設されている。If the setting device 13 is connected to the comparator 11 and the vibration detection signal from the vibration sensor 9a ... Exceeds the set level of the vibration set in the setting device 13, an abnormal situation is detected. The measurement maintenance mechanism 12 is provided with a signal generation circuit for stopping the operation of the arithmetic unit 7 and the rotation of the motor 3 in response to the output signal from the device 11. And the measurement maintenance mechanism 12
Is connected to the display unit 8 so that the unbalanced display displayed on the display unit 8 can be canceled in the case of the above-mentioned abnormal situation, and is configured to display an alarm when the deletion is made. Further, in the case of the above-mentioned abnormal situation, the timer mechanism 14 that reactivates the motor 3 and the computing unit 7 that have been deactivated by the measurement and maintenance mechanism 12 after a lapse of a required time from their deactivation, is provided by the measurement and maintenance mechanism 12 Is attached to.
【００１３】この実施形態の釣合い試験機は、上述のよ
うに構成されているので、試料５を高速回転（例えば6,
000回転／分）させて試料５の動的不釣合いを計測中
に、地震等により機枠１に外乱が生じ、そのレベルが所
定レベル（その値は設定器13で予め設定されている）を
超えたときには比較器11が異常事態と判定し、比較器11
からの出力信号により、計測保全機構12が演算器７およ
びモータ３の作動を自動的に停止させる。また、上記異
常事態の発生時には、演算器７に接続された表示器８に
表示される計測値の表示も、計測保全機構12によって自
動的に削除され、同時に表示器８には警報が表示され
る。Since the balance tester of this embodiment is constructed as described above, the sample 5 is rotated at a high speed (for example, 6,
(000 rotations / minute) while measuring the dynamic imbalance of the sample 5, a disturbance occurs in the machine casing 1 due to an earthquake or the like, and the level is set to a predetermined level (the value is preset by the setter 13). When it exceeds, the comparator 11 judges that it is an abnormal situation, and the comparator 11
The measurement and maintenance mechanism 12 automatically stops the operation of the computing unit 7 and the motor 3 by the output signal from the. Further, when the above-mentioned abnormal situation occurs, the display of the measured value displayed on the display unit 8 connected to the computing unit 7 is automatically deleted by the measurement maintenance mechanism 12, and at the same time, the display unit 8 displays an alarm. It
【００１４】さらに、計測保全機構12に付設されるたタ
イマ機構14の作用で、上記異常事態の際に作動を停止さ
せられたモータ３および演算器７ならびに表示器８は、
それらの作動停止から所要時間の経過後に自動的に再作
動させられる。このようにして、この実施形態の釣合い
試験機によれば、地震等のハイレベルの外乱や衝撃の発
生時には、計測された計測値が自動的に消去されるの
で、その測定機能の信頼性が著しく高められるようにな
る。また釣合い試験機の回転が自動的に停止するため、
釣合い試験機の保護をはかることが可能となる。さら
に、地震の発生を表示器８が表示するため、これを地震
対策に利用することもできる。Further, the operation of the motor 3 and the computing unit 7 and the display 8 which are stopped in the above-mentioned abnormal situation by the action of the timer mechanism 14 attached to the measurement maintenance mechanism 12,
They are automatically reactivated after the required time has passed since their deactivation. In this way, according to the balance tester of this embodiment, when a high-level disturbance or shock such as an earthquake occurs, the measured value is automatically deleted, so that the reliability of the measurement function is improved. It will be significantly increased. In addition, the rotation of the balance tester automatically stops,
It becomes possible to protect the balance testing machine. Furthermore, since the occurrence of an earthquake is displayed on the display device 8, this can be used as an earthquake countermeasure.
【００１５】[0015]
【発明の効果】以上詳述したように、本発明の計測保全
機構付き釣合い試験機によれば、次のような効果が得ら
れる。 (1) 試料支持用回転軸および同回転軸駆動用モータを支
持する機枠に装着された振動センサが、設定レベルを超
える振動を検出した異常事態の際に、同センサからの振
動検出信号を設定レベルと比較する比較器からの出力信
号により、計測保全機構が上記モータおよび演算器の作
動を自動的に停止させることができる。 (2) 上記異常事態の発生時には、上記演算器に接続され
た表示器に表示される計測値が、上記計測保全機構によ
って自動的に削除され、さらに同表示器には警報が表示
される。 (3) 上記計測保全機構に付設されたタイマ機構により、
上記異常事態の際に作動を停止された上記のモータおよ
び演算器は、それらの作動停止から所要時間の経過後に
自動的に再作動させられるようになる。 (4) 上記(1)〜(3)項により、地震等のハイレベルの外乱
や衝撃の発生時に、計測された測定値が自動的に排除さ
れるので、その測定機能の信頼性が著しく高められるよ
うになる。また釣合い試験機の保護もはかられる。As described in detail above, according to the balance testing machine with the measurement and maintenance mechanism of the present invention, the following effects can be obtained. (1) The vibration sensor mounted on the machine frame supporting the sample support rotary shaft and the rotary shaft drive motor detects the vibration exceeding the set level and outputs the vibration detection signal from the sensor in the abnormal situation. An output signal from the comparator comparing with the set level allows the measurement maintenance mechanism to automatically stop the operation of the motor and the arithmetic unit. (2) When the above-mentioned abnormal situation occurs, the measurement value displayed on the display connected to the computing unit is automatically deleted by the measurement maintenance mechanism, and an alarm is displayed on the display. (3) By the timer mechanism attached to the above measurement maintenance mechanism,
The motor and the arithmetic unit, which have been deactivated in the abnormal situation, can be automatically reactivated after a lapse of a required time from their deactivation. (4) By the above items (1) to (3), the measured value is automatically excluded when a high-level disturbance or shock such as an earthquake occurs, so the reliability of the measurement function is significantly improved. Will be available. Also, the balance tester can be protected.
【図１】本発明の一実施形態としての計測保全機構付き
釣合い試験機の概略構成を模式的に示す説明図である。FIG. 1 is an explanatory view schematically showing a schematic configuration of a balance testing machine with a measurement and maintenance mechanism as an embodiment of the present invention.
１ 機枠 ２ 支持用回転軸 ３ 回転軸駆動用モータ ４ バネ ５ 試料 ６ 光変位センサ ７ 演算器 ８ 表示器 ９ａ，９ｂ 振動センサ 11 比較器 12 計測保全機構 13 設定器 14 タイマ機構 1 Machine frame 2 Rotating shaft for support 3 Motor for driving rotating shaft 4 Spring 5 Sample 6 Optical displacement sensor 7 Computing device 8 Display 9a, 9b Vibration sensor 11 Comparator 12 Measurement maintenance mechanism 13 Setting device 14 Timer mechanism
Claims (3)
動用モータと、光変位センサと、同変位センサで検出さ
れた上記試料の変位に基づき同試料の動的不釣合いを演
算する演算器とをそなえた釣合い試験機において、 上記の回転軸およびモータを支持する機枠に装着された
振動センサと、同振動センサからの振動検出信号を設定
レベルと比較する比較器とが設けられるとともに、同比
較器で比較される上記振動検出信号が上記設定レベルを
超えた異常事態の際に、同比較器からの出力信号により
上記のモータおよび演算器の作動を停止させる計測保全
機構が設けられたことを特徴とする、計測保全機構付き
釣合い試験機。1. A dynamic unbalance of the sample is supported based on a rotary shaft supporting the sample, a drive motor for the rotary shaft, an optical displacement sensor, and the displacement of the sample detected by the displacement sensor. A balance tester equipped with a computing device is provided with a vibration sensor mounted on a machine frame supporting the rotary shaft and the motor, and a comparator for comparing a vibration detection signal from the vibration sensor with a set level. At the same time, in the event of an abnormal situation where the vibration detection signal compared by the comparator exceeds the set level, a measurement maintenance mechanism is provided to stop the operation of the motor and the computing unit by the output signal from the comparator. A balance tester with a measurement and maintenance mechanism, characterized by being
い試験機において、上記演算器で求められた計測値を表
示すべく同演算器に接続された表示器が設けられ、上記
異常事態の際に、上記計測保全機構が上記表示器に表示
される計測値を削除するとともに、同表示器に警報を表
示するように構成されたことを特徴とする、計測保全機
構付き釣合い試験機。2. The balance testing machine with a measurement maintenance mechanism according to claim 1, further comprising a display connected to the arithmetic unit for displaying the measured value obtained by the arithmetic unit, and At this time, the measurement and maintenance mechanism is configured to delete the measured value displayed on the display and to display an alarm on the display, and the balance testing machine with the measurement and maintenance mechanism.
付き釣合い試験機において、上記異常事態の際に、上記
計測保全機構により作動を停止された上記のモータおよ
び演算器を、それらの作動停止から所要時間の経過後に
再作動させるタイマ機構が、上記計測保全機構に付設さ
れたことを特徴とする、計測保全機構付き釣合い試験
機。3. The balance testing machine with a measurement and maintenance mechanism according to claim 1 or 2, wherein the operation of the motor and the arithmetic unit stopped by the measurement and maintenance mechanism is performed in the abnormal situation. A balance testing machine with a measurement and maintenance mechanism, characterized in that a timer mechanism for reactivating after a lapse of a required time from a stop is attached to the measurement and maintenance mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7319543A JPH09138179A (en) | 1995-11-14 | 1995-11-14 | Balance test machine with measurement preservation mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7319543A JPH09138179A (en) | 1995-11-14 | 1995-11-14 | Balance test machine with measurement preservation mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09138179A true JPH09138179A (en) | 1997-05-27 |
Family
ID=18111432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7319543A Pending JPH09138179A (en) | 1995-11-14 | 1995-11-14 | Balance test machine with measurement preservation mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09138179A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114646377A (en) * | 2020-12-21 | 2022-06-21 | 财团法人金属工业研究发展中心 | Vibration force measuring device |
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| JPS6454327A (en) * | 1987-08-26 | 1989-03-01 | Hiromitsu Okumura | Unbalance signal detector |
| JPH0274840A (en) * | 1988-09-09 | 1990-03-14 | Hitachi Koki Co Ltd | Detection of unbalance of rotor |
| JPH05142083A (en) * | 1991-05-24 | 1993-06-08 | Carl Schenck Ag | Method for considering inaccuracy of crank-pin position in balancing of crank shaft and apparatus utilizing method thereof |
| JPH05264392A (en) * | 1992-03-17 | 1993-10-12 | Hitachi Plant Eng & Constr Co Ltd | Diagnosis system for rotating machine |
| JPH05340799A (en) * | 1992-06-11 | 1993-12-21 | Omron Corp | Vibration discriminating device |
-
1995
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5915762U (en) * | 1982-07-22 | 1984-01-31 | フジテツク株式会社 | Operation control device for mechanical multilevel parking system |
| JPS6454327A (en) * | 1987-08-26 | 1989-03-01 | Hiromitsu Okumura | Unbalance signal detector |
| JPH0274840A (en) * | 1988-09-09 | 1990-03-14 | Hitachi Koki Co Ltd | Detection of unbalance of rotor |
| JPH05142083A (en) * | 1991-05-24 | 1993-06-08 | Carl Schenck Ag | Method for considering inaccuracy of crank-pin position in balancing of crank shaft and apparatus utilizing method thereof |
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| JPH05340799A (en) * | 1992-06-11 | 1993-12-21 | Omron Corp | Vibration discriminating device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114646377A (en) * | 2020-12-21 | 2022-06-21 | 财团法人金属工业研究发展中心 | Vibration force measuring device |
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