JPH08313229A - Automatic measuring apparatus of angle of rotation of handle - Google Patents
Automatic measuring apparatus of angle of rotation of handleInfo
- Publication number
- JPH08313229A JPH08313229A JP14132395A JP14132395A JPH08313229A JP H08313229 A JPH08313229 A JP H08313229A JP 14132395 A JP14132395 A JP 14132395A JP 14132395 A JP14132395 A JP 14132395A JP H08313229 A JPH08313229 A JP H08313229A
- Authority
- JP
- Japan
- Prior art keywords
- handle
- cam
- displacement sensor
- starting point
- rotation
- 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.)
- Withdrawn
Links
Landscapes
- A Measuring Device Byusing Mechanical Method (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はハンドルの回転角自動計
測装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for automatically measuring a rotation angle of a handle.
【０００２】[0002]
【従来の技術】例えば、蒸気タービンのガバナハンドル
の回転角自動計測装置としては、従来、図２正面図に示
すようなものが知られている。すなわち、同図で回転角
計測装置０１は、ガバナブロック０２のハンドル０３に
取付けられた取付け治具０４と、これに同軸的に接続さ
れた可撓継手０５と、これに同軸的に接続された回転角
検出器０６とから形成されている。このような装置で
は、回転角検出器０６に回転角を電圧に変換するポテン
シヨメータを使用して、回転角変位を相隣る巻線間を摺
動子が移動するときの抵抗変化に変換して検出してお
り、特に、サーボ用の回転角検出器では高精度のものが
採用されている。2. Description of the Related Art For example, as an automatic rotation angle measuring device for a governor handle of a steam turbine, a device as shown in the front view of FIG. 2 is conventionally known. That is, in the figure, the rotation angle measuring device 01 is coaxially connected to the attachment jig 04 attached to the handle 03 of the governor block 02, the flexible joint 05 coaxially connected thereto, and coaxially connected thereto. And a rotation angle detector 06. In such a device, a potentiometer that converts a rotation angle into a voltage is used as the rotation angle detector 06, and the rotation angle displacement is converted into a resistance change when the slider moves between adjacent windings. In particular, a highly accurate rotation angle detector for servo is adopted.
【０００３】しかしながら、このような装置では、下記
のような欠点がある。 (1) 検出手段が接触式なので、振動により摺動子に接触
不良が生ずる惧れがあり、したがって、信頼性が十分と
はいえない。 (2) 検出手段が接触式なので、摩耗による寿命があり、
したがって、長期の連続計測に耐えられない。 (3) 検出手段が接触式なので、摺動子を動かすと出力電
圧が細かい階段状に変化し、したがって、サーボ用での
微小調整が難しい。 (4) ハンドル０３に回転角検出器０６を取付ける際に、
ハンドル０３の軸心と回転角検出器０６の軸心とのセン
タリング作業が必要なので、工数が嵩み、したがって、
経済性が十分でない。However, such a device has the following drawbacks. (1) Since the detection means is a contact type, there is a risk of contact failure on the slider due to vibration, and therefore reliability cannot be said to be sufficient. (2) Since the detection means is a contact type, it has a life due to wear,
Therefore, it cannot withstand long-term continuous measurement. (3) Since the detection means is a contact type, when the slider is moved, the output voltage changes in fine steps, which makes fine adjustment for servo difficult. (4) When attaching the rotation angle detector 06 to the handle 03,
Since the centering work between the shaft center of the handle 03 and the shaft center of the rotation angle detector 06 is required, the man-hour is increased, and therefore,
Economic efficiency is not sufficient.
【０００４】[0004]
【発明が解決しようとする課題】本発明は、このような
事情に鑑みて提案されたもので、振動による悪影響がな
く、かつ、寿命への制約が少なく、また、連続的信号が
出力でき、さらに、ハンドルへの装着が容易な、したが
って、信頼性，耐久性，精密調整及び経済性に優れたハ
ンドルの回転角自動計測装置を提供することを目的とす
る。SUMMARY OF THE INVENTION The present invention has been proposed in view of the above circumstances, and has no adverse effect due to vibration, has a limited life span, and can output a continuous signal. Further, it is an object of the present invention to provide an automatic rotation angle measuring device for a handle, which is easy to mount on the handle and is therefore excellent in reliability, durability, precision adjustment and economy.
【０００５】[0005]
【課題を解決するための手段】そのために、本発明はハ
ンドルに付設されその平面的輪郭線が始点である上記ハ
ンドルの外縁上から渦巻き状に上記ハンドルの内部に巻
込み１回転したのち上記ハンドルの外向き半径方向へ延
び上記始点に戻る形状のカムと、上記カムの側方で平面
的に上記ハンドルの外縁より外方に配設された非接触式
変位センサと、上記非接触式変位センサに順次接続され
た変換器，記録計とを具え、上記カムの始点の上記非接
触式変位センサとの相対変位及び通過回数から回転角を
算出することを特徴とする。To this end, according to the present invention, the handle is attached to the handle and spirally wound into the inside of the handle from the outer edge of the handle whose starting point is the planar contour line, and then the handle is rotated once. A cam having a shape extending outward in the radial direction of the cam and returning to the starting point, a non-contact type displacement sensor disposed laterally of the cam outside the outer edge of the handle, and the non-contact type displacement sensor. The rotary angle is calculated from the relative displacement of the starting point of the cam with respect to the non-contact displacement sensor and the number of passages.
【０００６】[0006]
【作用】このような構成によれば、ハンドルに付設され
その平面的輪郭線が始点である上記ハンドルの外縁上か
ら渦巻き状に上記ハンドルの内部に巻込み１回転したの
ち上記ハンドルの外向き半径方向へ延び上記始点に戻る
形状のカムと、上記カムの側方で平面的に上記ハンドル
の外縁より外方に配設された非接触式変位センサと、上
記非接触式変位センサに順次接続された変換器，記録計
とを具え、上記カムの始点の上記非接触式変位センサと
の相対変位及び通過回数から回転角を算出するので、下
記の作用が行われる。 (1) 検出手段が非接触式変位センサであるから、振動に
よる接触不良現象がなくなる。 (2) 検出手段が非接触式変位センサとなる結果、摩耗に
よる寿命がなくなる。 (3) 検出手段が非接触式変位センサであるから、検出値
が連続的となる。 (4) ハンドルの軸とカムの軸とのずれについては、非接
触式変位センサからの出力に対して補正可能であるか
ら、ハンドルへのカムの取付け時には目視程度のセンタ
リングで済む。According to such a construction, the outer radius of the handle is spirally wound from the outer edge of the handle, which is attached to the handle and whose starting point is the plane contour line, into the inside of the handle in a spiral manner and then makes one rotation Connected to the non-contact displacement sensor, a cam having a shape extending in the direction and returning to the starting point, a non-contact displacement sensor disposed laterally of the cam outside the outer edge of the handle, and a non-contact displacement sensor. Since the rotation angle is calculated from the relative displacement of the starting point of the cam with respect to the non-contact displacement sensor and the number of passages, the following operation is performed. (1) Since the detection means is a non-contact type displacement sensor, the contact failure phenomenon due to vibration is eliminated. (2) As a result of the detection means being a non-contact displacement sensor, the life due to wear is lost. (3) Since the detection means is a non-contact type displacement sensor, the detection value is continuous. (4) The deviation between the handle shaft and the cam shaft can be corrected by the output from the non-contact displacement sensor, so that visual centering is sufficient when the cam is attached to the handle.
【０００７】[0007]
【実施例】本発明を図２のハンドル０３に適用した一実
施例を図面について説明すると、同図と同一の符号はそ
れぞれ同図と同一の部材を示し、まず、図１(A) 正面図
及び同図(B) 平面図において、１はハンドル０３の上面
に同軸的に付設されたカムで、その平面的輪郭線は始点
であるハンドル０３の外縁上から渦巻き状に軸心へ巻込
み１回転したのち外向き半径方向へ延び上記始点のハン
ドル０３の外縁上に戻る形状となっている。２はカム１
の側方で平面的にハンドル０３の外縁より外方に配設さ
れた非接触式変位センサ、３は非接触式変位センサ２の
出力信号を電線を介して入力する変換器、４は変換器３
の出力信号を電線を介して入力する記録計である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to the handle 03 of FIG. 2 will be described with reference to the drawings. The same reference numerals in FIG. 2 indicate the same members as those in FIG. In the plan view (B) of the figure, reference numeral 1 denotes a cam coaxially attached to the upper surface of the handle 03. After being rotated, it extends outward in the radial direction and returns to the outer edge of the handle 03 at the starting point. 2 is cam 1
A non-contact displacement sensor, which is disposed laterally outside the outer edge of the handle 03 in a planar manner, 3 is a converter for inputting the output signal of the non-contact displacement sensor 2 through an electric wire, and 4 is a converter. Three
Is a recorder for inputting the output signal of the above through an electric wire.
【０００８】このような装置の図１(A) 及び同図(B) に
おいて、ハンドル０３を回転角０°の位置から時計方向
に回転すると、非接触式変位センサ２とカム１との間隙
Ｃは次第に増加してゆき、回転角３６０°の位置で最大
値に達したのち瞬間的に回転角０°の位置と同一の最小
値に復帰する。したがって、変換器３で非接触式変位セ
ンサ２から入力された間隙Ｃとこれが最大値から最小値
に復帰した回数とを基にハンドル０３の回転角を算出
し、その結果を記録計４に記録する。In FIGS. 1 (A) and 1 (B) of such a device, when the handle 03 is rotated clockwise from the position where the rotation angle is 0 °, the gap C between the non-contact displacement sensor 2 and the cam 1 is increased. Gradually increases, reaches the maximum value at the position of the rotation angle of 360 °, and then instantaneously returns to the same minimum value as the position of the rotation angle of 0 °. Therefore, the rotation angle of the handle 03 is calculated based on the gap C input from the non-contact displacement sensor 2 by the converter 3 and the number of times the gap C has returned from the maximum value to the minimum value, and the result is recorded in the recorder 4. To do.
【０００９】なお、図１(C) 線図は非接触式変位センサ
２とカム１との間隙Ｃとハンドル０３の回転角との関係
を示し、間隙Ｃは０°から３６０°まで一様に増加した
のち、瞬間的に零に戻り、以降このような過程を繰返
す、いわゆる鋸歯波を画く。また、カム１はハンドル０
３の下面に同軸的に付設してもよく、さらに、非接触式
変位センサ２としては、例えば、光波干渉を利用した光
学的測定器を使用すると自動測定に便利である。The diagram (C) of FIG. 1 shows the relationship between the clearance C between the non-contact displacement sensor 2 and the cam 1 and the rotation angle of the handle 03. The clearance C is uniform from 0 ° to 360 °. After increasing, it instantaneously returns to zero and repeats such a process thereafter, so-called sawtooth wave is drawn. Also, the cam 1 is the handle 0
The non-contact displacement sensor 2 may be provided coaxially on the lower surface of the optical fiber 3 and, for example, an optical measuring device utilizing light wave interference is convenient for automatic measurement.
【００１０】このような、実施例の装置によれば、ハン
ドルに付設されその平面的輪郭線が始点である上記ハン
ドルの外縁上から渦巻き状に上記ハンドルの内部に巻込
み１回転したのち上記ハンドルの外向き半径方向へ延び
上記始点に戻る形状のカムと、上記カムの側方で平面的
に上記ハンドルの外縁より外方に配設された非接触式変
位センサと、上記非接触式変位センサに順次接続された
変換器，記録計とを具え、上記カムの始点の上記非接触
式変位センサとの相対変位及び通過回数から回転角を算
出するので、下記効果が奏せられる。 (1) 検出手段が非接触式変位センサであるから、振動に
よる接触不良現象がなくなり、したがって、装置の信頼
性が向上する。 (2) 検出手段が非接触式変位センサとなる結果、摩耗に
よる寿命がなくなり、したがって、装置の長期間連続計
測が可能になる。 (3) 検出手段が非接触式変位センサであるから、検出値
が連続的となり、したがって、装置をサーボ用に使った
際の調整精度が向上する。 (4) ハンドルの軸とカムの軸とのずれについては、非接
触式変位センサからの出力に対して補正可能であるか
ら、ハンドルへのカムの取付け時には目視程度のセンタ
リングで済み、したがって、経済性が向上する。According to the apparatus of this embodiment, the handle is attached to the handle and spirally wound into the inside of the handle from the outer edge of the handle whose starting point is the starting point, and then the handle is rotated once. A cam having a shape extending outward in the radial direction of the cam and returning to the starting point, a non-contact type displacement sensor disposed laterally of the cam outside the outer edge of the handle, and the non-contact type displacement sensor. Since the rotation angle is calculated from the relative displacement of the starting point of the cam with respect to the non-contact displacement sensor and the number of passages, the following effects can be obtained. (1) Since the detection means is a non-contact type displacement sensor, a contact failure phenomenon due to vibration is eliminated, and therefore the reliability of the device is improved. (2) As a result of the detection means being a non-contact type displacement sensor, the service life due to wear is eliminated, and therefore continuous measurement of the device for a long period of time becomes possible. (3) Since the detection means is a non-contact type displacement sensor, the detected values are continuous, and therefore the adjustment accuracy when the device is used for servo is improved. (4) Deviation between the handle shaft and the cam shaft can be corrected by the output from the non-contact type displacement sensor, so it is only necessary to perform visual centering when mounting the cam on the handle. The property is improved.
【００１１】[0011]
【発明の効果】要するに本発明によれば、ハンドルに付
設されその平面的輪郭線が始点である上記ハンドルの外
縁上から渦巻き状に上記ハンドルの内部に巻込み１回転
したのち上記ハンドルの外向き半径方向へ延び上記始点
に戻る形状のカムと、上記カムの側方で平面的に上記ハ
ンドルの外縁より外方に配設された非接触式変位センサ
と、上記非接触式変位センサに順次接続された変換器，
記録計とを具え、上記カムの始点の上記非接触式変位セ
ンサとの相対変位及び通過回数から回転角を算出するこ
とにより、振動による悪影響がなく、かつ、寿命への制
約が少なく、また、連続的信号が出力でき、さらに、ハ
ンドルへの装着が容易な、したがって、信頼性，耐久
性，精密調整及び経済性に優れたハンドルの回転角自動
計測装置を得るから、本発明は産業上極めて有益なもの
である。In summary, according to the present invention, the handle is attached to the handle and its planar contour line is the starting point, and the coil is spirally wound into the inside of the handle from the outer edge of the handle, and then the handle is turned outward. A cam having a shape extending in the radial direction and returning to the starting point, a non-contact type displacement sensor disposed laterally of the cam outside the outer edge of the handle, and a non-contact type displacement sensor are sequentially connected. Converter,
With a recorder, by calculating the rotation angle from the relative displacement of the starting point of the cam and the non-contact displacement sensor and the number of passages, there is no adverse effect due to vibration, and there are few restrictions on the life, and The present invention is extremely industrially advantageous because it can output a continuous signal and can be easily attached to the handle, and thus provides an automatic handle rotation angle measuring device with excellent reliability, durability, precision adjustment and economy. It is useful.
【図１】本発明を図２に示すガバナブロック０２のハン
ドル０３に適用した一実施例を示し、(A) ，(B) ，(C)
はそれぞれ正面図，平面図，間隙Ｃと回転角との関係を
図示する線図である。1 shows an embodiment in which the present invention is applied to a handle 03 of a governor block 02 shown in FIG. 2, and (A), (B), (C)
FIG. 4 is a front view, a plan view, and a diagram illustrating the relationship between the gap C and the rotation angle, respectively.
【図２】公知のハンドルの回転角自動計測装置を示す正
面図である。FIG. 2 is a front view showing a known automatic rotation angle measuring device for a handle.
１ カム ２ 非接触式変位センサ ３ 変換器 ４ 記録計 ０２ ガバナブロック ０３ ハンドル Ｃ 間隙 1 Cam 2 Non-contact Displacement Sensor 3 Transducer 4 Recorder 02 Governor Block 03 Handle C Gap
Claims (1)
始点である上記ハンドルの外縁上から渦巻き状に上記ハ
ンドルの内部に巻込み１回転したのち上記ハンドルの外
向き半径方向へ延び上記始点に戻る形状のカムと、上記
カムの側方で平面的に上記ハンドルの外縁より外方に配
設された非接触式変位センサと、上記非接触式変位セン
サに順次接続された変換器，記録計とを具え、上記カム
の始点の上記非接触式変位センサとの相対変位及び通過
回数から回転角を算出することを特徴とするハンドルの
回転角自動計測装置。1. A handle is attached to the handle, and a planar contour line of the handle is spirally wound into the inside of the handle from above the outer edge of the handle, and after one rotation, the handle extends outward in the radial direction of the handle and extends to the start point. A cam having a returning shape, a non-contact type displacement sensor which is arranged laterally of the cam outside the outer edge of the handle, a converter and a recorder which are sequentially connected to the non-contact type displacement sensor. And a rotation angle automatic measuring device for a handle, wherein the rotation angle is calculated from the relative displacement of the starting point of the cam with respect to the non-contact displacement sensor and the number of times of passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14132395A JPH08313229A (en) | 1995-05-16 | 1995-05-16 | Automatic measuring apparatus of angle of rotation of handle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14132395A JPH08313229A (en) | 1995-05-16 | 1995-05-16 | Automatic measuring apparatus of angle of rotation of handle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08313229A true JPH08313229A (en) | 1996-11-29 |
Family
ID=15289258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14132395A Withdrawn JPH08313229A (en) | 1995-05-16 | 1995-05-16 | Automatic measuring apparatus of angle of rotation of handle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08313229A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010190834A (en) * | 2009-02-20 | 2010-09-02 | Nsk Ltd | Torque sensor and power steering device |
-
1995
- 1995-05-16 JP JP14132395A patent/JPH08313229A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010190834A (en) * | 2009-02-20 | 2010-09-02 | Nsk Ltd | Torque sensor and power steering device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20020806 |