JPH0390998A - Equipment for transmitting power/signal between rotating side sensor and fixed side device - Google Patents
Equipment for transmitting power/signal between rotating side sensor and fixed side deviceInfo
- Publication number
- JPH0390998A JPH0390998A JP22645089A JP22645089A JPH0390998A JP H0390998 A JPH0390998 A JP H0390998A JP 22645089 A JP22645089 A JP 22645089A JP 22645089 A JP22645089 A JP 22645089A JP H0390998 A JPH0390998 A JP H0390998A
- Authority
- JP
- Japan
- Prior art keywords
- sensor
- fixed
- rotating
- power
- rotating part
- 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
- 238000004804 winding Methods 0.000 claims abstract description 26
- 230000008054 signal transmission Effects 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 abstract description 7
- 238000001514 detection method Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000087 stabilizing effect Effects 0.000 description 2
- 230000004397 blinking Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は回転部分に取付けられたセンサと固定側装置と
の間の信号、駆動電力等の伝達構造に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a structure for transmitting signals, driving power, etc. between a sensor attached to a rotating part and a stationary device.
（従来の技術）
装置の回転部分にセンサを取付け、センサによる検出信
号を固定部分で受取ることが必要となる場合は多い。こ
のような場合従来は、スリップリングとブラシの摺動接
触を通して、固定側からセンサに駆動電力を送り、かつ
センサから信号を受取る方法、或はスリップリングの代
りに水銀のような液状導電体を用いる方法が用いられて
いた。(Prior Art) It is often necessary to attach a sensor to a rotating part of a device and receive a detection signal from the sensor at a fixed part. In such cases, conventional methods have been to send driving power to the sensor from the fixed side and receive signals from the sensor through sliding contact between a slip ring and a brush, or to use a liquid conductor such as mercury instead of the slip ring. method was used.
（発明が解決しようとする課８）
上述したような接触式の電力、信号の伝達方法は高速回
転に不向きであり、耐久性が低く、摺動に伴う雑音が入
り易すがった。(Problem 8 to be solved by the invention) The above-described contact type power and signal transmission method is not suitable for high-speed rotation, has low durability, and is susceptible to noise due to sliding.
本発明は上述したような接触式の方法の問題点を解消す
るため、非接触式の電力、信号の伝達機構を提供しよう
とするものである。The present invention aims to provide a non-contact power and signal transmission mechanism in order to solve the problems of the contact method as described above.
（課題を解決するための手段）
固定側に一次巻線を設け、回転側にこの一次巻線と電磁
結合するように二次巻線を設け、−次巻線に交流或は直
流電流を流すことにより、二次巻線に誘起される電力を
回転部に取付けられたセンサに駆動電力として供給し、
同センサの出力を回転部に取付けられた発光素子により
光信号に変換し、この光信号を固定側で受信することに
より、センサ出力を固定側に伝達するようにした。−次
巻線の代りに永久磁石を用いてもよい。(Means for solving the problem) A primary winding is provided on the stationary side, a secondary winding is provided on the rotating side so as to be electromagnetically coupled to the primary winding, and alternating current or direct current is passed through the secondary winding. By this, the power induced in the secondary winding is supplied as driving power to the sensor attached to the rotating part,
The output of the sensor is converted into an optical signal by a light emitting element attached to the rotating part, and this optical signal is received by the fixed side, thereby transmitting the sensor output to the fixed side. - A permanent magnet may be used instead of the secondary winding.
（作用〉
上述構成より明らかなように変圧器或は発電機の作用で
回転側に電力を発生させ、それを回転側で使用している
ので、電力供給は完全に非接触的である。センサ出力は
回転部上で光信号に変換され、固定部側で受光するので
あるから、信号の伝達もまた完全に非接触的である。上
の原理から明かなように一次側巻線は永久磁石であって
もよい。(Operation) As is clear from the above configuration, power is generated on the rotating side by the action of the transformer or generator and used on the rotating side, so the power supply is completely non-contact.Sensor The output is converted into an optical signal on the rotating part, and the light is received on the fixed part, so signal transmission is also completely non-contact.As is clear from the above principle, the primary winding is a permanent magnet. It may be.
（実施例〉
図は本発明の一実施例を示す。１は回転軸で、図外の軸
受により枢支されており、図外の駆動装置により回転せ
しめられる。２は回転軸１に固定された回転部で、３は
回転部２上に取付けられているセンサである。回転部２
には回転軸１と同軸的に磁芯４が嵌着してあり、その外
側に回転軸ｌと同軸的に二次巻線５が巻装しである。６
は固定部の一部で筒状をなし、回転部２の外側に回転部
２と同軸的に配置されており、二次巻線５の外側になる
部分に回転軸ｌと同軸的に一次巻線７が巻装されている
。−次巻線７は交流電源８に接続されて交流電流により
励磁される。このようにして−次巻線と二次巻線とで変
圧器が構成されており、二次巻線に電力が誘起される。(Embodiment) The figure shows an embodiment of the present invention. Reference numeral 1 denotes a rotating shaft, which is pivotally supported by a bearing (not shown) and rotated by a drive device (not shown). 2 is fixed to the rotating shaft 1. 3 is a sensor installed on the rotating part 2.The rotating part 2
A magnetic core 4 is fitted coaxially with the rotating shaft 1, and a secondary winding 5 is wound on the outside thereof coaxially with the rotating shaft 1. 6
is a part of the fixed part, which has a cylindrical shape, and is arranged coaxially with the rotating part 2 on the outside of the rotating part 2, and the primary winding is arranged coaxially with the rotating shaft l on the part that becomes the outer side of the secondary winding 5. The wire 7 is wound. - The next winding 7 is connected to an alternating current power supply 8 and is excited by alternating current. In this way, the primary winding and the secondary winding constitute a transformer, and electric power is induced in the secondary winding.
この交流電力は回転部２上に取付けられた整流電圧安定
化回路９で定電圧直流に変換されてセンサ３に供給され
る。センサ３の出力は回転部２上で電圧周波数変換器１
０で交流信号に変換され、ＬＥＤ駆動回路１１で増幅さ
れて、回転部３に取付けられている発光ダイオード１２
を発光させる。その光が固定部６の発光ダイオード１２
と対向する内周上に取付けられたフォトダイオード１３
で受光され、同ダイオードの出力が信号処理系１４で周
波数により識別処理される。発光ダイオード１２から発
せられた光は回転部２と固定部６との間で反対を繰返し
ながらフォトダイオード１３に入射するので、発光ダイ
オード１２がフォトダイオード１３と対向する位置以外
でも両者間で光の授受は可能である。This alternating current power is converted into constant voltage direct current by a rectifying voltage stabilizing circuit 9 mounted on the rotating part 2 and supplied to the sensor 3. The output of the sensor 3 is sent to the voltage frequency converter 1 on the rotating part 2.
0 is converted into an alternating current signal, amplified by the LED drive circuit 11, and then transmitted to the light emitting diode 12 attached to the rotating part 3.
to emit light. The light is emitted from the light emitting diode 12 of the fixed part 6.
A photodiode 13 mounted on the inner circumference facing the
The output of the diode is subjected to frequency identification processing in the signal processing system 14. Since the light emitted from the light emitting diode 12 enters the photodiode 13 while repeating the opposite direction between the rotating part 2 and the fixed part 6, the light is not transmitted between the two even in a position other than the position where the light emitting diode 12 faces the photodiode 13. Giving and receiving is possible.
発光ダイオードの発光を上側のようにセンサ出力により
周波数変調すれば、センサ部の回転による受光量の変動
の影響なしに定量的なデータの伝送ができる。センサ出
力の種類によっては、単に発光素子の点滅だけで信号伝
送可能である。また発光ダイオードを円周に沿って複数
個配置すれば受光量の変動は少くなり、発光素子の発光
強度の制御によりセンサ出力信号を伝送でき、発光体に
面状発光体を用いれば更によい。If the light emission of the light emitting diode is frequency modulated by the sensor output as shown above, quantitative data can be transmitted without being affected by fluctuations in the amount of light received due to rotation of the sensor section. Depending on the type of sensor output, it is possible to transmit a signal simply by blinking the light emitting element. Furthermore, if a plurality of light emitting diodes are arranged along the circumference, fluctuations in the amount of light received will be reduced, and the sensor output signal can be transmitted by controlling the light emission intensity of the light emitting elements, and it is even better if a planar light emitter is used as the light emitter.
上述実施例は固定部と回転部のコイルが回転軸を軸とし
て巻装されているので、回転部の回転によっては電力は
誘起されないが、変圧器の作用で電力の伝達を行ってお
り、供給電力が回転部の回転速度の影響を受けない。し
かし回転部の回転速度が比較的安定している場合には固
定側巻線と回転側巻線で発Ｎ、機を構成するようにして
もよく、更に固定側巻線の代りに永久磁石を用いること
もできる。In the above embodiment, the coils of the fixed part and the rotating part are wound around the rotating shaft, so power is not induced by the rotation of the rotating part, but the power is transmitted by the action of the transformer, and the power is not supplied. Power is not affected by the rotational speed of the rotating part. However, if the rotational speed of the rotating part is relatively stable, the generator may be configured with a fixed side winding and a rotating side winding, and a permanent magnet may be used in place of the fixed side winding. It can also be used.
またセンサヘッド部の電源および出力の形態（例えば直
流か交流か、および電圧範囲等）を統一しておけばセン
サヘッド部たけ交換することによって、色々な物理量の
測定検出の要求に対応することができる。In addition, if the power supply and output format of the sensor head unit (for example, DC or AC, voltage range, etc.) is unified, it is possible to respond to requests for measurement and detection of various physical quantities by simply replacing the sensor head. can.
（発明の効果）
本発明によれば、工作機械の回転軸に本発明装置を取付
けることにより、回転機構に負担をかけることなく、非
接触的に回転部において種々な測定、検出を行うことが
可能であり、非接触であるから、回転速度に制限がなく
、高速回転が行われる場合特に有利となり、摩擦部分が
ないから耐久性が高く、雑音も発生せず高感度高精度の
検出測定が可能となる。(Effects of the Invention) According to the present invention, by attaching the device of the present invention to the rotating shaft of a machine tool, various measurements and detections can be performed on the rotating part in a non-contact manner without placing a burden on the rotating mechanism. Since it is non-contact, there is no limit to the rotational speed, which is especially advantageous when high-speed rotation is performed.Since there are no friction parts, it is highly durable, and does not generate noise, allowing for highly sensitive and highly accurate detection measurements. It becomes possible.
図面は本発明の一実施例装置の要部縦断側面図である。
ｌ・・・回転軸、２・・・回転部、３・・・センサ、４
・・・磁芯、５・・・二次巻線、６・・・固定部、７・
・・−次巻線、８・・・電源、９・・・整流電圧安定回
路、１０・・・電圧周波数変換器、１１・・・ＬＥＤ駆
動回路、１２・・・発光ダイオード、
１
３・・・フォトダイオード、
４・・・信
号処理系。The drawing is a longitudinal sectional side view of a main part of an apparatus according to an embodiment of the present invention. l... Rotating shaft, 2... Rotating part, 3... Sensor, 4
...Magnetic core, 5...Secondary winding, 6...Fixed part, 7.
...-Next winding, 8... Power supply, 9... Rectifier voltage stabilizing circuit, 10... Voltage frequency converter, 11... LED drive circuit, 12... Light emitting diode, 1 3...・Photodiode, 4...Signal processing system.
Claims (1)
磁結合するように巻線を設け、この巻線に誘起される電
力を回転部に取付けられたセンサの駆動源とし、同セン
サ出力により回転部に取付けられた発光素子を制御し、
その光を固定側において受光するようにしたことを特徴
とする回転側センサと固定側装置間の電力、信号伝達装
置。A magnetic field generating means is provided on the stationary side, and a winding is provided on the rotating part so as to be electromagnetically coupled with the magnetic field, and the electric power induced in this winding is used as a drive source for a sensor attached to the rotating part, and the sensor output controls the light emitting element attached to the rotating part,
A power and signal transmission device between a rotating side sensor and a stationary side device, characterized in that the light is received on a stationary side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22645089A JPH0390998A (en) | 1989-08-31 | 1989-08-31 | Equipment for transmitting power/signal between rotating side sensor and fixed side device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22645089A JPH0390998A (en) | 1989-08-31 | 1989-08-31 | Equipment for transmitting power/signal between rotating side sensor and fixed side device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0390998A true JPH0390998A (en) | 1991-04-16 |
Family
ID=16845288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22645089A Pending JPH0390998A (en) | 1989-08-31 | 1989-08-31 | Equipment for transmitting power/signal between rotating side sensor and fixed side device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0390998A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007292731A (en) * | 2006-03-28 | 2007-11-08 | Victor Co Of Japan Ltd | Bearing inspection method and motor manufacturing method |
-
1989
- 1989-08-31 JP JP22645089A patent/JPH0390998A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007292731A (en) * | 2006-03-28 | 2007-11-08 | Victor Co Of Japan Ltd | Bearing inspection method and motor manufacturing method |
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