JPH0833324B2 - Rotating body displacement measuring device - Google Patents

Rotating body displacement measuring device

Info

Publication number
JPH0833324B2
JPH0833324B2 JP30142790A JP30142790A JPH0833324B2 JP H0833324 B2 JPH0833324 B2 JP H0833324B2 JP 30142790 A JP30142790 A JP 30142790A JP 30142790 A JP30142790 A JP 30142790A JP H0833324 B2 JPH0833324 B2 JP H0833324B2
Authority
JP
Japan
Prior art keywords
displacement
reflector
rotating body
measuring device
drive 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.)
Expired - Fee Related
Application number
JP30142790A
Other languages
Japanese (ja)
Other versions
JPH04174326A (en
Inventor
淳一 井上
光雄 西
勲 田中
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honda Motor Co Ltd
Original Assignee
Honda Motor Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP30142790A priority Critical patent/JPH0833324B2/en
Publication of JPH04174326A publication Critical patent/JPH04174326A/en
Publication of JPH0833324B2 publication Critical patent/JPH0833324B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices By Optical Means (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、走行中の車両のドライブシャフト等の回転
体の振動変位を測定する回転体変位測定装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotating body displacement measuring device for measuring a vibration displacement of a rotating body such as a drive shaft of a running vehicle.

(従来の技術) 車体の振動解析において、走行中の回転しているドラ
イブシャフトが車体を基準として変位する量を定量的に
測定するための装置はなかった。
(Prior Art) In vibration analysis of a vehicle body, there was no device for quantitatively measuring the amount of displacement of a rotating drive shaft during traveling with respect to the vehicle body.

(発明が解決しようとする課題) 特に、フロントエンジンフロントドライブ車(FF車)
においては、デファレンシャル装置の左右出力軸と左右
車輪の車軸とが各々自在継手を介してドライブシャフト
で連結されている。
(Problems to be solved by the invention) In particular, front engine front drive vehicles (FF vehicles)
In the above, the left and right output shafts of the differential device and the axles of the left and right wheels are connected by drive shafts via universal joints.

そこで、車体の振動原因を解析するに際し走行中の回
転するドライブシャフトの振動による変位量を測定し、
解析したいという要望がある。
Therefore, when analyzing the cause of vibration of the vehicle body, the displacement amount due to the vibration of the rotating drive shaft during traveling was measured,
There is a desire to analyze.

本発明は、このような要望に対してなされたものであ
り、その目的とするところは、走行中のドライブシャフ
ト等の回転体の振動変位を所望なタイミングで測定する
ことができる回転体変位測定装置を提供しようとするも
のである。
The present invention has been made to meet such a demand, and an object thereof is to measure the displacement of a rotating body capable of measuring the vibration displacement of a rotating body such as a drive shaft during traveling at a desired timing. It is intended to provide a device.

(課題を解決するための手段) 上記課題を解決すべく本発明は、回転体の回転軸と軸
を一致させて前記回転体に固設した多角柱の反射体と、
この反射体の側部に設けた反射体の平面に対応する位置
に孔を形成した制御板と、前記孔を検知する光センサ
と、前記反射体の変位を測定する光学的変位センサと、
この光学的変位センサの出力信号を前記光センサの出力
信号に同期して記録処理するデータ処理部とから成るも
のである。
(Means for Solving the Problems) In order to solve the above problems, the present invention provides a polygonal prism reflector that is fixed to the rotating body by aligning the rotation axis of the rotating body with the axis.
A control plate having a hole formed at a position corresponding to the plane of the reflector provided on the side of the reflector, an optical sensor for detecting the hole, and an optical displacement sensor for measuring the displacement of the reflector,
And a data processing unit for recording the output signal of the optical displacement sensor in synchronization with the output signal of the optical sensor.

(作用) 回転体の変位が所望のタイミングで記憶されて処理さ
れる。
(Operation) The displacement of the rotating body is stored and processed at a desired timing.

(実施例) 以下に本発明の実施例を添付図面に基づいて説明す
る。
(Example) Below, the Example of this invention is described based on an accompanying drawing.

第1図は本発明に係る回転体変位測定装置の構成図、
第2図は反射体の制御板の正面図、第3図は同じく側面
図である。
FIG. 1 is a configuration diagram of a rotary body displacement measuring device according to the present invention,
FIG. 2 is a front view of the reflector control plate, and FIG. 3 is a side view of the same.

回転体変位測定装置は、第1図に示すように車両のド
ライブシャフト1の所定部位に固設した正8角柱の反射
体2と、反射体2の側部に設けた8箇所に長孔3を形成
した制御板4と、長孔3を検知する光センサである光電
スイッチ5と、反射体2の変位を直交座標系のX,Y,Z方
向で測定するレーザ式変位センサ6,7,8と、変位センサ
6,7,8の出力信号である変位量を光電スイッチ5の出力
信号に同期して記録して処理するデータ処理部9とから
構成されている。なお、10はバランスウェイトである。
As shown in FIG. 1, the rotating body displacement measuring device comprises a regular octagonal prism-shaped reflector 2 fixed to a predetermined portion of a drive shaft 1 of a vehicle, and long holes 3 at eight locations provided on the sides of the reflector 2. , A control plate 4 formed with a slit, a photoelectric switch 5 which is an optical sensor for detecting the long hole 3, and a laser type displacement sensor 6, 7, for measuring the displacement of the reflector 2 in the X, Y, Z directions of the orthogonal coordinate system. 8 and displacement sensor
The data processing unit 9 records and processes the displacement amount which is the output signal of 6, 7, and 8 in synchronization with the output signal of the photoelectric switch 5. In addition, 10 is a balance weight.

反射体2は、第2図に示すように2aと2bの2分割から
なりドライブシャフト1を挟持するようにして2aと2bが
ドライブシャフト1に固定されると、外周に8個の平面
2cを有する正8角柱となる。また、反射体2の一側には
接続部材11を介して制御板4を連結している。
As shown in FIG. 2, the reflector 2 is divided into two parts, 2a and 2b, and when the drive shaft 1 is sandwiched so that 2a and 2b are fixed to the drive shaft 1, eight flat surfaces are formed on the outer circumference.
It becomes a regular octagonal prism with 2c. A control plate 4 is connected to one side of the reflector 2 via a connecting member 11.

制御板4は、中央部にドライブシャフト1を通すため
の孔4aを開け、孔4aの周囲には等間隔で8個の長孔3を
形成している。そして、第2図に示すように長孔3の長
径が反射体2の各平面2cと直交するように制御板4を反
射体2に連結している。
The control plate 4 has a hole 4a for allowing the drive shaft 1 to pass therethrough, and eight elongated holes 3 are formed around the hole 4a at equal intervals. Then, as shown in FIG. 2, the control plate 4 is connected to the reflector 2 so that the major axis of the elongated hole 3 is orthogonal to each plane 2c of the reflector 2.

光電スイッチ5は、第3図に示すように投光器5aと受
光器5bから成り制御板4を介して投光器5aと受光器5bが
対向するように取付部材12に固設している。従って、光
電スイッチ5は、投光器5aから投射する光を受光器5bが
受光するとオン状態となり、制御板4が1回転する間に
8回オンオフ状態を繰返すことになる。
As shown in FIG. 3, the photoelectric switch 5 is composed of a light projector 5a and a light receiver 5b, and is fixed to a mounting member 12 so that the light projector 5a and the light receiver 5b face each other via a control plate 4. Therefore, the photoelectric switch 5 is turned on when the light receiver 5b receives the light projected from the light projector 5a, and the on / off state is repeated eight times while the control plate 4 makes one rotation.

変位センサ6,7,8は、夫々取付部材12,13,14を介して
車体側に固設している。X方向とY方向に変位センサ6,
7は、光電スイッチ5がオン状態の時に投射するレーザ
光を夫々対応する反射体2の平面2cに垂直に当て、夫々
の平面2cの変位量を測定し、Z方向の変位センサ8は、
同様に反射体2の一側である平面2dに垂直に当て、その
平面2dの変位量を測定する。このように反射体2のX,Y,
Z方向の変位量を同じタイミングで測定することにより
ドライブシャフト1のX,Y,Z方向の変位量を測定する。
変位センサ6,7,8は、測定対象物にレーザ光を投射する
と共にその反射光を検知して投光面の変位量に比例した
電圧を出力する。そこで、測定対象物となる反射体2の
静止状態で各平面2c,2c,2dに夫々レーザ光を投射し各変
位センサ6,7,8の出力電圧がゼロになるように調整し、
その位置を反射体2の基準位置と設定する。
The displacement sensors 6, 7, 8 are fixed to the vehicle body side via mounting members 12, 13, 14 respectively. Displacement sensor 6 in X and Y directions,
Reference numeral 7 applies laser light projected when the photoelectric switch 5 is in the ON state to the planes 2c of the corresponding reflectors 2 perpendicularly to measure the amount of displacement of each plane 2c, and the displacement sensor 8 in the Z direction is
Similarly, it is vertically applied to the flat surface 2d, which is one side of the reflector 2, and the displacement amount of the flat surface 2d is measured. In this way, the X, Y, and
The displacement amount of the drive shaft 1 in the X, Y, and Z directions is measured by measuring the displacement amount in the Z direction at the same timing.
The displacement sensors 6, 7 and 8 project a laser beam onto an object to be measured, detect the reflected light thereof, and output a voltage proportional to the amount of displacement of the light projecting surface. Therefore, laser light is projected onto each of the planes 2c, 2c, 2d in a stationary state of the reflector 2 to be measured, and the output voltage of each displacement sensor 6, 7, 8 is adjusted to zero,
That position is set as the reference position of the reflector 2.

データ処理部9は、図示しない変位センサ6,7,8のコ
ントローラと、コントローラの出力電圧をディジタルに
変換するアナログ・ディジタル変換器(A/D変換器)
と、光電スイッチ5のアンプと、入出力インタフェース
を備えたコンピュータとから構成されており、車両に搭
載してドライブシャフト1の走行時の振動変位量のデー
タを記録し、処理する。
The data processing unit 9 is a controller for the displacement sensors 6, 7, 8 (not shown) and an analog / digital converter (A / D converter) for converting the output voltage of the controller into a digital signal.
And an amplifier of the photoelectric switch 5 and a computer having an input / output interface, which is mounted on a vehicle to record and process data of the vibration displacement amount of the drive shaft 1 during traveling.

以上のように構成された回転体変位測定装置は、変位
センサ6,7,8が出力する反射体2の各平面2c,2c,2dの走
行中の変位量に比例した電圧を光電スイッチ5がオン状
態からオフ状態に変化する際の光電スイッチ5の出力信
号に同期してA/D変換器を介しコンピュータのメモリに
記録する。そして、コンピュータの所定のプログラムに
よってデータを処理し、ドライブシャフト1のX,Y,Z方
向の変位量の変化状態をCRT等の表示装置、X−Yプロ
ッタまたはプリンタに出力する。
In the rotary body displacement measuring device configured as described above, the photoelectric switch 5 outputs a voltage proportional to the displacement amount of each of the planes 2c, 2c, 2d of the reflector 2 output by the displacement sensors 6, 7, 8 during traveling. It records in the memory of the computer through the A / D converter in synchronization with the output signal of the photoelectric switch 5 when changing from the ON state to the OFF state. Then, the data is processed by a predetermined program of the computer, and the change state of the displacement amount of the drive shaft 1 in the X, Y, Z directions is output to a display device such as a CRT, an XY plotter or a printer.

このように走行中の車体に対するドライブシャフト1
の変位量を記録し、処理することにより車体の振動解析
の質の向上に寄与する。
The drive shaft 1 for the vehicle body running in this way
By recording and processing the amount of displacement of the vehicle, it contributes to improving the quality of vibration analysis of the vehicle body.

(発明の効果) 以上説明したように本発明によれば、回転体の振動変
位を所望なタイミングで測定することが出来る。
(Effects of the Invention) As described above, according to the present invention, it is possible to measure the vibration displacement of a rotating body at a desired timing.

【図面の簡単な説明】[Brief description of drawings]

第1図は本発明に係る回転体変位測定装置の構成図、第
2図は反射体と制御板の正面図、第3図は同じく側面図
である。 1……ドライブシャフト(回転体)、2……反射体、3
……長孔、4……制御板、5……光電スイッチ(光セン
サ)、6,7,8……変位センサ、9……データ処理部。
FIG. 1 is a configuration diagram of a rotary body displacement measuring device according to the present invention, FIG. 2 is a front view of a reflector and a control plate, and FIG. 3 is a side view of the same. 1 ... Drive shaft (rotating body), 2 ... Reflector, 3
...... Long hole, 4 ...... Control plate, 5 ...... Photoelectric switch (optical sensor), 6,7,8 ...... Displacement sensor, 9 ...... Data processing section.

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】回転体の回転軸と軸を一致させて前記回転
体に固設した多角柱の反射体と、この反射体の側部に設
けた前記反射体の平面に対応する位置に孔を形成した制
御板と、前記孔を検知する光センサと、前記反射体の変
位を測定する光学的変位センサと、この光学的変位セン
サの出力信号を前記光センサの出力信号に同期して記録
処理するデータ処理部とから成ることを特徴とする回転
体変位測定装置。
Claim: What is claimed is: 1. A polygonal prism reflector fixed to the rotary body such that its axis coincides with the rotation axis of the rotary body, and a hole provided at a position corresponding to a plane of the reflector provided on a side portion of the reflector. A control plate, an optical sensor for detecting the hole, an optical displacement sensor for measuring the displacement of the reflector, and an output signal of the optical displacement sensor recorded in synchronization with the output signal of the optical sensor. A rotating body displacement measuring device comprising: a data processing unit for processing.
JP30142790A 1990-11-07 1990-11-07 Rotating body displacement measuring device Expired - Fee Related JPH0833324B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP30142790A JPH0833324B2 (en) 1990-11-07 1990-11-07 Rotating body displacement measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP30142790A JPH0833324B2 (en) 1990-11-07 1990-11-07 Rotating body displacement measuring device

Publications (2)

Publication Number Publication Date
JPH04174326A JPH04174326A (en) 1992-06-22
JPH0833324B2 true JPH0833324B2 (en) 1996-03-29

Family

ID=17896752

Family Applications (1)

Application Number Title Priority Date Filing Date
JP30142790A Expired - Fee Related JPH0833324B2 (en) 1990-11-07 1990-11-07 Rotating body displacement measuring device

Country Status (1)

Country Link
JP (1) JPH0833324B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109764952A (en) * 2019-01-24 2019-05-17 甘特科技(北京)有限公司 A kind of detection of dither axis, rotating speed measurement method and device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109764952A (en) * 2019-01-24 2019-05-17 甘特科技(北京)有限公司 A kind of detection of dither axis, rotating speed measurement method and device

Also Published As

Publication number Publication date
JPH04174326A (en) 1992-06-22

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