JPS61111433A - Measuring instrument of torque - Google Patents
Measuring instrument of torqueInfo
- Publication number
- JPS61111433A JPS61111433A JP20694184A JP20694184A JPS61111433A JP S61111433 A JPS61111433 A JP S61111433A JP 20694184 A JP20694184 A JP 20694184A JP 20694184 A JP20694184 A JP 20694184A JP S61111433 A JPS61111433 A JP S61111433A
- Authority
- JP
- Japan
- Prior art keywords
- torque
- measured
- hand
- positions
- microcomputer
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
- G01L3/02—Rotary-transmission dynamometers
- G01L3/04—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft
- G01L3/10—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
- G01L3/12—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating involving photoelectric means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
Description
【発明の詳細な説明】
（発明の技術分野）
この発明は、ステップモータ等の間欠的運動をする回転
体のトルク測定、時計・電流計等の指針の微少トルクの
測定、その他回転体のトルク測定装置に関するものであ
る。Detailed Description of the Invention (Technical Field of the Invention) The present invention is applicable to measuring the torque of a rotating body that moves intermittently such as a step motor, measuring the minute torque of the pointer of a watch or ammeter, and measuring the torque of other rotating bodies. This relates to a measuring device.
（従来技術）
従来、トルク測定は、様々の装置で実施されているが、
後述の通り被測定物と測定装置を連結する接触式では、
検出部の慣性モーメントの影響で、起動時のトルク、小
回転角度内で変動するトルク、微少なトルクの測定は極
めて困難である。(Prior Art) Conventionally, torque measurement has been carried out using various devices.
As described below, in the contact type, which connects the object to be measured and the measuring device,
Due to the influence of the moment of inertia of the detection unit, it is extremely difficult to measure torque at startup, torque that fluctuates within a small rotation angle, and minute torque.
以下、従来例として２例を上げる。Below, two examples will be given as conventional examples.
１、ヒステリシスブレーキ方式による装置第５図は、ヒ
ステリシスブレーキ方式のトルク測定装置の概念図であ
る。1. Apparatus using hysteresis brake system FIG. 5 is a conceptual diagram of a torque measuring apparatus using hysteresis brake system.
測定台１７に固定された被測定物１２の回転軸１３は、
ジヨイント１４で円盤１５に固着されている。円板１５
は被測定物１２の回転に伴って回転するようになってい
るが、電磁石１６に通電することにより電流値に応じた
制動力を発生する。The rotating shaft 13 of the object to be measured 12 fixed on the measuring table 17 is
It is fixed to the disc 15 with a joint 14. Disk 15
is designed to rotate with the rotation of the object to be measured 12, and by energizing the electromagnet 16, a braking force corresponding to the current value is generated.
被測定物１２を回転させ、電磁石１６へ通電する電流値
を徐々に増加させていき、被測定物１２のトルクと制動
力が均衡して回転が静止した時の電流値から対応するト
ルクの値を知る装置で有るが、この種の装置の場合、円
板１５、ジヨイント１４専の検出部の慣性力が比較的大
きいこと、静止により測定することにより、（イ）微少
トルク、（ロ）変動するトルク、（ハ）起動時のトルク
、（ニ）逆回転の含まれる回転体の逆転時のトルクの測
定は出来ない。The object to be measured 12 is rotated and the current value applied to the electromagnet 16 is gradually increased, and the corresponding torque value is calculated from the current value when the torque and braking force of the object to be measured 12 are balanced and the rotation stops. However, in the case of this type of device, the inertial force of the detection part dedicated to the disk 15 and joint 14 is relatively large, and since the measurement is performed while stationary, (a) minute torque and (b) fluctuations can be detected. It is not possible to measure (c) the torque at startup, and (d) the torque at the time of reversal of the rotating body, which includes reverse rotation.
２、プロー二方式による装置
第６図は、ブロー二方式のトルク測定装置の概念図であ
り、小型モータ、時計等のトルクの測定に用いられてい
る。2. Apparatus based on the Blow 2 method FIG. 6 is a conceptual diagram of a torque measuring device using the Blow 2 method, which is used to measure the torque of small motors, watches, etc.
被測定物の回転軸１３には、プーリ１８が固着され、糸
２０の一端は測定台１７に連結され、もう一端は重り１
９に連結されていて、更に、糸２０は、プーリ１８の溝
に巻つけて掛けられている。A pulley 18 is fixed to the rotating shaft 13 of the object to be measured, one end of the thread 20 is connected to the measuring table 17, and the other end is connected to the weight 1.
Further, a thread 20 is wound around the groove of the pulley 18.
測定は、被測定物を回転させ、プーリ１８が時計回転方
向に回転することにより重り１９を持ち上げるか否かで
なされる。持ち上げの判定は、測定台側の糸２１の僅か
な撓みをもってする。重り１９の重量を調整し、持ち上
げうる最大の重量とプーリ１８の半径を乗じてトルクの
値を得るが、静摩擦、動ａ！擦の差を利用して、糸２０
がプーリ１８の溝を間欠的にスリップするように糸２０
の材質や形状、プーリ１８への巻数等を測定の度に調整
しなければならない。The measurement is performed by rotating the object to be measured and determining whether or not the pulley 18 lifts the weight 19 by rotating in a clockwise direction. Lifting is determined by the slight bending of the thread 21 on the measuring table side. Adjust the weight of the weight 19 and multiply the maximum weight that can be lifted by the radius of the pulley 18 to obtain the torque value, but static friction, dynamic a! Using the difference in friction, thread 20
The thread 20 is intermittently slipped through the groove of the pulley 18.
The material and shape of the pulley 18, the number of turns on the pulley 18, etc. must be adjusted every time a measurement is made.
この種の装置の場合、プーリ１８と重り１９の慣性力に
影響されること、測定台側の糸２１の撓みで判定するこ
と、静摩擦と動摩擦に交互に支配され、一定の負荷がか
けられないことから、（イ）微少トルク、（ロ）逆回転
の含まれる回転体の逆転トルク、（ハ）変動するトルク
、（ニ）起動時のトルクの測定は出来ない。また、重り
１９の交換や、糸２０への調整を要するので、（ホ）測
定に長時間かかる。In the case of this type of device, it is affected by the inertial force of the pulley 18 and the weight 19, the determination is made based on the deflection of the string 21 on the measuring table side, and it is alternately dominated by static friction and dynamic friction, so a constant load cannot be applied. Therefore, it is not possible to measure (a) minute torque, (b) reversal torque of a rotating body that includes reverse rotation, (c) fluctuating torque, and (d) torque at startup. Furthermore, since it is necessary to replace the weight 19 and make adjustments to the thread 20, (e) measurement takes a long time.
以上述べた如く、従来のトルク測定装置では、測定出来
ない領域がある。また、測定の時間的コスト的な面から
生産現場への適用が困難であった。As described above, there are areas where conventional torque measuring devices cannot measure. Furthermore, it has been difficult to apply to production sites due to the time and cost of measurement.
（発明の目的） この発明は、上記従来のトルク測定装
置の持つ限界が、多くは検出部のもつ慣性モーメントの
影響や、被測定物の自由な回転運動の拘束に起因してい
ることに着目して、非接触非拘束の状態で、どの様な動
きをする回転体のトルクでも、連続的即時的かつ簡便に
測定する装置を提供することを目的とするものである。(Objective of the Invention) This invention focuses on the fact that the limitations of the conventional torque measuring device described above are mostly due to the influence of the moment of inertia of the detection unit and the restriction of the free rotational movement of the object to be measured. Therefore, it is an object of the present invention to provide a device that can continuously, instantaneously, and simply measure the torque of a rotating body that moves in any manner in a non-contact, unrestricted state.
（主たる構成）
この発明は、光源と、対向する多数の光電素子の列とで
検出部を構成することをもって、被測定物が非接触非拘
束で自由に回転運動しているときの測定を可能にし、被
測定物の回転軸に固着された指針の運動により光源から
の光線を遮られた光電素子の列からの信号を、オプトモ
ーションディテクタ、波形記憶装置を用いて処理し、被
測定物の慣性モーメントとトルク算出式を予め記憶させ
た演算回路でトルクを算出させることにより、連続的即
時的かつ簡便なトルクの測定を可能にしたものである。(Main configuration) This invention enables measurement when the object to be measured is rotating freely in a non-contact and unrestricted manner by configuring a detection section with a light source and a row of many opposing photoelectric elements. The signals from the array of photoelectric elements whose light beams from the light source are blocked by the movement of a pointer fixed to the rotating shaft of the object to be measured are processed using an opto-motion detector and a waveform storage device to detect the inertia of the object to be measured. By calculating torque using an arithmetic circuit that stores moment and torque calculation formulas in advance, it is possible to measure torque continuously, immediately, and simply.
（実施例）
以下、実施例を示す図面を用いて、この発明の詳細な説
明する。(Example) Hereinafter, the present invention will be described in detail using drawings showing examples.
第１図は、この発明の実施例を示す装置のブロックダイ
ヤグラム、第２図は装置の部分図である。FIG. 1 is a block diagram of an apparatus showing an embodiment of the invention, and FIG. 2 is a partial diagram of the apparatus.
光ｍ１は、ライセンサカメラ５の受光部１０のもつ光電
素子列１１に対向して配置される。The light m1 is arranged opposite to the photoelectric element array 11 of the light receiving section 10 of the licenser camera 5.
被測定物たる時計２は、回転軸たる秒針＠３と、秒針軸
３に固着された指針たる秒針体４を有し、秒針体４が運
動することにより、光源１から出て光電素子列１１の受
ける光線６を遮る位置に配置される。７は、光電素子列
１１からの信号を入力して指針の位置とその位置に達す
る時間とを出力するオプトモーションディテクタ。A clock 2 which is an object to be measured has a second hand @ 3 which is a rotating shaft and a second hand body 4 which is a pointer fixed to the second hand shaft 3. When the second hand body 4 moves, it emits from a light source 1 and emits a photoelectric element array 11. It is placed in a position that blocks the light rays 6 received by the camera. 7 is an opto-motion detector which inputs the signal from the photoelectric element array 11 and outputs the position of the pointer and the time to reach that position.
８は、オプトモーションディテクタ７の出力を記憶する
波形記憶装置。９は、マイクロコンピュータである。8 is a waveform storage device that stores the output of the opto-motion detector 7; 9 is a microcomputer.
測定には、まず、時計２を駆動する。秒針軸３が回転し
秒針体４が運動して光源１からの光 ゛線６が光電素子
列１１に達するのを妨げる。For measurement, first, the clock 2 is driven. The second hand shaft 3 rotates and the second hand body 4 moves to prevent the light beam 6 from the light source 1 from reaching the photoelectric element array 11.
ライセンサカメラ５は、この妨げをもって秒針体４の光
電素子列１１に対する通過位置を連続的に信号としてオ
プトモーションディテクタ７に送り、ここで位置とその
位置に達する時間とが組み合されて波形記憶装置８に送
られ、一旦記憶される。マイクロコンピータ９は、波形
記憶装置８からデータを呼び出し、予め記憶された演算
プログラムによって位置を角度に変換し、更に時間で２
回微分して角加速度に変換する。The licensor camera 5 uses this interference to continuously send the passing position of the second hand body 4 relative to the photoelectric element array 11 as a signal to the opto-motion detector 7, where the position and the time to reach that position are combined and stored in the waveform storage device 8. is sent to and temporarily stored. The microcomputer 9 reads data from the waveform storage device 8, converts the position into an angle using a pre-stored arithmetic program, and further converts the position into an angle in time.
Convert it to angular acceleration by differentiating it.
マイクロコンピータ９には別に、秒針体４と秒針軸３、
及び秒針軸３に固着している図示省略！′ の
歯車等の慣性モーメント（の値）を予め８己憶してあり
、予め記憶された演算プログラムによって、角加速度と
慣性モーメントとを乗じトルクと時間との線図を即時的
に出力する。The microcomputer 9 also includes a second hand body 4, a second hand shaft 3,
And fixed to the second hand shaft 3 (not shown)! 'The moment of inertia of gears, etc. is stored in advance, and the angular acceleration and moment of inertia are multiplied by the pre-stored arithmetic program to instantly output a diagram of torque versus time.
第４図は、この様にして得られたトルク一時間線図であ
り、第３図は、角度一時間線図である。FIG. 4 is a torque hourly diagram obtained in this way, and FIG. 3 is an angle hourly diagram.
この実施例の時計２は、ステップモータで駆動している
ので、第３図に見られる様に時間と角度の関係、すなわ
ち回転速度は、１ステツプ内で複雑に変化し、逆回転も
含まれているが、第３図で明らかなように１ステツプ内
の瞬間的なトルクの変化も捉えている。また、１ ｇｒ
ｃｍ以下の微少トルクが測定出来ている。Since the clock 2 of this embodiment is driven by a step motor, the relationship between time and angle, that is, the rotation speed, changes complexly within one step, as shown in Figure 3, and reverse rotation is also included. However, as is clear from Figure 3, it also captures instantaneous changes in torque within one step. Also, 1 gr
Minute torque of less than cm can be measured.
実施例で見るように、この発明のトルク測定装置によれ
ば、トルク測定のみでなく、回転体の角度一時間線図、
更に、角速度一時間線図もマイクロコンピータ９への演
算プログラム入力によって実施出来る。第４図は、その
ようにして得られたものである。As seen in the examples, the torque measuring device of the present invention not only measures torque, but also measures the angle of a rotating body over time.
Furthermore, an angular velocity one-time diagram can also be created by inputting an arithmetic program to the microcomputer 9. FIG. 4 is thus obtained.
実施例においては、指針として秒針体４を用いたが、光
線を妨げる突起を有するか、光線を通過させるスリット
を有する板状物を回転軸に取り付ければ、指針として用
いる事ができる。In the embodiment, the second hand body 4 is used as a pointer, but it can also be used as a pointer if a plate-shaped object having a protrusion that blocks the light beam or a slit that allows the light beam to pass is attached to the rotating shaft.
また、被測定物の回転軸にすでに固着した突起あるいは
スリットを持った板状物も、指針として用いることがで
きる。Furthermore, a plate-shaped object having a protrusion or slit that is already fixed to the rotating shaft of the object to be measured can also be used as a guide.
なお、演算に用いる慣性モーメントの値は、被測定物の
測定する回転軸に固着している物体の慣性モーメントの
総和である。Note that the value of the moment of inertia used in the calculation is the sum of the moments of inertia of objects fixed to the rotation axis of the object to be measured.
（発明の効果）
この発明は、以上のように構成されているので以下の効
果を有する。(Effects of the Invention) Since the present invention is configured as described above, it has the following effects.
非接触非拘束の状態で画定するので、 （イ）時計、電流計等の微少なトルクが測定できる。Since it is defined in a non-contact and non-restricted state, (a) Can measure minute torques from watches, ammeters, etc.
（ロ）間欠、逆回転、起動時等の複雑な運動のトルクが
測定できる。(b) Torque of complex movements such as intermittent, reverse rotation, and startup can be measured.
また、波形記憶装置と、マイクロコンピュータ等の演算
回路を用いているので、
（ハ）時間の経過に対応したトルクの値が連続的即時的
に得られる。Furthermore, since a waveform storage device and an arithmetic circuit such as a microcomputer are used, (c) torque values corresponding to the passage of time can be obtained continuously and instantaneously.
更に、測定の準備、操作が簡単なので、（ニ）生産現場
での測定が容易にできる。Furthermore, preparation for measurement and operation are easy, so (d) measurement at the production site can be easily performed.
第１図は、この発明の実施例を示す装置のダイヤグラム
である。第２図は、この発明の実施例を示す装置の部分
図である。第３図は、この発明の装置による測定で得た
角度一時間線図である。
Ｉ！４図は、この発明の装置による測定で得たトルク一
時間線図である。第５図は、ヒステリシスブレーキ方式
のトルク測定装置の概念図、第６図は、ブロー二方式の
トルク測定装置の概念図である。
１は光源、２は時計（被測定物）、３は秒針軸（回転軸
）、４は秒針体（指針）、５はライセンサカメラ、６は
光線、７はオプトモーションディテクタ、８は波形記憶
装置、９はマイクロコンピュータ、１１は光電素子列。FIG. 1 is a diagram of an apparatus showing an embodiment of the invention. FIG. 2 is a partial diagram of an apparatus showing an embodiment of the invention. FIG. 3 is an angle-hour diagram obtained by measurement using the apparatus of the present invention. I! FIG. 4 is a one-hour torque diagram obtained by measurement using the apparatus of the present invention. FIG. 5 is a conceptual diagram of a hysteresis brake type torque measuring device, and FIG. 6 is a conceptual diagram of a Blow 2 type torque measuring device. 1 is a light source, 2 is a clock (object to be measured), 3 is a second hand axis (rotation axis), 4 is a second hand body (pointer), 5 is a licensor camera, 6 is a light beam, 7 is an opto-motion detector, 8 is a waveform storage device, 9 is a microcomputer, and 11 is a photoelectric element array.
Claims (1)
らの光線を遮られることをもって指針の位置を検出する
多数の光電素子の列からなる検出部と、光電素子からの
信号を入力して、指針の位置とその位置に達する時間と
を出力するオプトモーションディテクタと、オプトモー
ションディテクタの出力を記憶する波形記憶装置、及び
、予めトルク算出式と被測定物の慣性モーメントを記憶
し、波形記憶装置からのデータをもとに被測定物の各時
間におけるトルクを即時的に出力する演算回路とを具備
した事を特徴とするトルク測定装置。A pointer is fixed to the rotating shaft of the object to be measured, and the detection section consists of a row of many photoelectric elements that detect the position of the pointer by blocking the light rays from opposing light sources, and the signal from the photoelectric elements is input. an opto-motion detector that outputs the position of the pointer and the time to reach that position; a waveform storage device that stores the output of the opto-motion detector; and a waveform storage device that stores the torque calculation formula and the moment of inertia of the object to be measured in advance. 1. A torque measuring device characterized by comprising an arithmetic circuit that instantly outputs the torque of a measured object at each time based on data from the device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59206941A JPH0617835B2 (en) | 1984-10-02 | 1984-10-02 | Torque measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59206941A JPH0617835B2 (en) | 1984-10-02 | 1984-10-02 | Torque measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61111433A true JPS61111433A (en) | 1986-05-29 |
| JPH0617835B2 JPH0617835B2 (en) | 1994-03-09 |
Family
ID=16531570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59206941A Expired - Lifetime JPH0617835B2 (en) | 1984-10-02 | 1984-10-02 | Torque measuring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0617835B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998030869A1 (en) * | 1997-01-08 | 1998-07-16 | Citizen Watch Co., Ltd. | Method of measuring information on rotation of rotary body, and instrument for measuring information on rotation |
| JP2016023997A (en) * | 2014-07-18 | 2016-02-08 | 株式会社ロボテック | Dummy load torque generator of rotary-electromotor torque test machine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5436774A (en) * | 1977-08-26 | 1979-03-17 | Toyota Motor Co Ltd | Transient torque measuring instrument |
| JPS56142411A (en) * | 1980-04-08 | 1981-11-06 | Usac Electronics Ind Co Ltd | Device for detecting rotation angle |
-
1984
- 1984-10-02 JP JP59206941A patent/JPH0617835B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5436774A (en) * | 1977-08-26 | 1979-03-17 | Toyota Motor Co Ltd | Transient torque measuring instrument |
| JPS56142411A (en) * | 1980-04-08 | 1981-11-06 | Usac Electronics Ind Co Ltd | Device for detecting rotation angle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998030869A1 (en) * | 1997-01-08 | 1998-07-16 | Citizen Watch Co., Ltd. | Method of measuring information on rotation of rotary body, and instrument for measuring information on rotation |
| JP2016023997A (en) * | 2014-07-18 | 2016-02-08 | 株式会社ロボテック | Dummy load torque generator of rotary-electromotor torque test machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0617835B2 (en) | 1994-03-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4320293A (en) | Angle-position transducer | |
| US4218615A (en) | Incremental digital shaft encoder | |
| US5815269A (en) | Rotation sensor | |
| US4926121A (en) | Magnetic type position sensor for use in the construction of position indicators or torque meters | |
| JP2004223511A (en) | Unbalance dynamic load generator | |
| JPS61111433A (en) | Measuring instrument of torque | |
| US2954700A (en) | Rotation sensing device | |
| JPH02176415A (en) | Position sensor and torque sensor using the same | |
| JPH10332732A (en) | Angular acceleration detecting device with built-in resolver | |
| JP3395648B2 (en) | Rotary torque measuring device | |
| Purcaru et al. | Experimental measuring system with rotary incremental encoder | |
| CZ189698A3 (en) | Dynami measuring method of linear, rotary and pendulum motions by employing a measuring system containing at least one incremental motion pickup and precise generator as well as measuring system for making the same | |
| JP6665509B2 (en) | Position detection device | |
| JPH0424645B2 (en) | ||
| JPH04161829A (en) | Detecting method for abnormality of bearing of body of rotation | |
| JPS6013449A (en) | Servo motor | |
| SU873129A1 (en) | Velocity head meter | |
| JP2021179374A (en) | Testing system | |
| JP2694233B2 (en) | Ultrasonic motor and electronic equipment with ultrasonic motor | |
| SU1307260A1 (en) | Device for measuring unbalance of rotating unit part | |
| JPH0431533B2 (en) | ||
| JPS60231113A (en) | Incremental type rotary encoder | |
| JPS6344722Y2 (en) | ||
| JPH04331370A (en) | Rotational speed detector | |
| SU1674698A3 (en) | Device for precision reproduction of work-piece angle-of- rotation |