JPH05133821A - Method for measuring stray load loss of rotar - Google Patents
Method for measuring stray load loss of rotarInfo
- Publication number
- JPH05133821A JPH05133821A JP3300130A JP30013091A JPH05133821A JP H05133821 A JPH05133821 A JP H05133821A JP 3300130 A JP3300130 A JP 3300130A JP 30013091 A JP30013091 A JP 30013091A JP H05133821 A JPH05133821 A JP H05133821A
- Authority
- JP
- Japan
- Prior art keywords
- measured
- torque
- stator
- shaft
- rotar
- 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
Landscapes
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、特に製造現場で電動機
のロータの漂遊負荷損を測定する方法に関する。FIELD OF THE INVENTION The present invention relates to a method for measuring stray load loss of a rotor of an electric motor, especially at a manufacturing site.
【０００２】[0002]
【従来の技術】近年、電動機の特性測定は被試験用の電
動機に実負荷をかけ、各種データをコンピュータで処理
して自動的に諸特性の表示がなされるようになってき
た。このような装置で得られた各種特性データの一部か
ら漂遊負荷損の値を測定していた。以下、図面を参照し
ながら上述した従来の電動機の特性測定装置について説
明する。図２は従来の電動機の特性測定装置のシステム
構成を示すものである。図２において特性を測定しよう
とする被試験モータ２１はトルク検出器２２を介してそ
の後部に回転検出器２４を有する負荷装置２３に連結さ
れる。試験電源２５は被試験モータ２１およびコンピュ
ータ２６と電気的に結合されている。コンピュータ２６
はトルク検出器２２、回転検出器２４および周辺機器２
７とも電気的に結合されている。上記構成において被試
験モータ２１に電源を印加し回転させ、負荷装置２３で
負荷を掛ける。その時の各種の信号がコンピュータ２６
に入力され、その演算結果が周辺機器２７に図表やデー
タ表として出力される。2. Description of the Related Art In recent years, in measuring the characteristics of an electric motor, an actual load is applied to an electric motor to be tested, various data are processed by a computer, and various characteristics are automatically displayed. The value of stray load loss was measured from a part of various characteristic data obtained by such an apparatus. The conventional characteristic measuring device for an electric motor described above will be described below with reference to the drawings. FIG. 2 shows a system configuration of a conventional electric motor characteristic measuring apparatus. The motor under test 21 whose characteristics are to be measured in FIG. 2 is connected via a torque detector 22 to a load device 23 having a rotation detector 24 at its rear part. The test power supply 25 is electrically coupled to the motor under test 21 and the computer 26. Computer 26
Is the torque detector 22, the rotation detector 24 and the peripheral device 2
7 is also electrically coupled. In the above configuration, power is applied to the motor under test 21 to rotate it, and the load is applied by the load device 23. Various signals at that time are sent to the computer 26.
Is input to the peripheral device 27 and is output to the peripheral device 27 as a chart or a data table.
【０００３】[0003]
【発明が解決しようとする課題】このような従来の特性
測定装置では、被試験モータをこの装置にセットするに
は芯出しなどに相当の時間を要する。また負荷装置やコ
ンピュータ、周辺機器など大掛かりな設備を必要とする
ために現場向きではない。しかもロータをモータ完成状
態にまで組みたてる必要がある。In such a conventional characteristic measuring apparatus, it takes a considerable time for centering or the like to set the motor under test on this apparatus. Moreover, it is not suitable for the field because it requires large-scale equipment such as load devices, computers, and peripheral devices. Moreover, it is necessary to assemble the rotor until the motor is completed.
【０００４】本発明は上記課題を解決するもので、ロー
タ単体で漂遊負荷損を測定する方法を提供することを目
的としている。The present invention has been made to solve the above problems, and an object of the present invention is to provide a method for measuring stray load loss with a single rotor.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に本発明のロータの漂遊負荷損の測定方法は、巻線を巻
装したステータと、このステータのセンターを貫通し一
端を軸受装置によって回転自在に支持された片持ちシャ
フトと、このシャフトの軸受装置側に連結されたトルク
検出器と外部駆動用モータとを備えた測定装置の、上記
シャフトに上記ステータと適合する被測定ロータをまわ
り止めして反軸受側から装着し、外部駆動用モータでシ
ャフトを一定速度で駆動するとともにステータに所定電
圧を印加して上記一定速度において被測定ロータが発生
するトルクをトルク検出器で測定し、測定したトルクが
所定の基準トルクより小さい場合、基準トルクと測定し
たトルクとの差を被測定ロータの漂遊負荷損であるとし
ている。In order to achieve the above object, a method of measuring a stray load loss of a rotor according to the present invention comprises a stator around which a winding is wound, and a bearing device having one end penetrating through the center of the stator. In a measuring device equipped with a cantilevered shaft rotatably supported, a torque detector connected to the bearing device side of the shaft, and an external drive motor, the shaft is rotated around a rotor to be measured that is compatible with the stator. Stop and mount from the opposite bearing side, drive the shaft at a constant speed with an external drive motor, apply a predetermined voltage to the stator and measure the torque generated by the measured rotor at the constant speed with a torque detector, When the measured torque is smaller than the predetermined reference torque, the difference between the reference torque and the measured torque is the stray load loss of the measured rotor.
【０００６】[0006]
【作用】本発明は上記した構成により、ロータ単体で漂
遊負荷損の測定をすることができる。According to the present invention, the stray load loss can be measured by the rotor alone with the above-mentioned configuration.
【０００７】[0007]
【実施例】以下、本発明の一実施例を図１を参照しなが
ら説明する。漂遊負荷損を測定する装置は図に示すよう
に被測定ロータ１と適合するステータ２と、ステータ２
のセンターを貫通し一端を軸受装置９によって回転自在
に支持された片持ちシャフト３と、シャフト３の軸受装
置側に連結されたトルク検出器５と、同じくシャフト３
の軸受装置側に連結された外部駆動用モータ６を備えて
いる。外部駆動用モータ６はベルト７を介してシャフト
３に駆動力を伝えている。被測定ロータ１は反軸受側か
らシャフト３に挿入されまわり止めされる。テールスト
ック４が反軸受側の振れ防止として配置されている。ト
ルク検出器５の電気信号およびステータ２に流れる電流
は測定部８に入力されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG. As shown in the figure, the device for measuring the stray load loss includes a stator 2 that is compatible with the rotor 1 to be measured, and a stator 2
Of the cantilever shaft 3, which has one end rotatably supported by a bearing device 9, a torque detector 5 connected to the bearing device side of the shaft 3, and the shaft 3
The external drive motor 6 is connected to the bearing device side of the. The external driving motor 6 transmits the driving force to the shaft 3 via the belt 7. The rotor to be measured 1 is inserted into the shaft 3 from the side opposite to the bearing and is stopped from rotating. The tailstock 4 is arranged to prevent runout on the opposite bearing side. The electric signal of the torque detector 5 and the current flowing through the stator 2 are input to the measuring unit 8.
【０００８】上記構成において動作を説明すると、被測
定ロータ１はシャフト３に挿入されまわり止めされテー
ルストック４で振れ防止される。この後外部駆動用モー
タ６は、漂遊負荷損が最も出やすい回転速度でシャフト
３を一定回転させる。同時にステータ２に所定の電圧を
印加し、被測定ロータ１が上記一定回転数で発生する回
転トルクをトルク検出器５で測定する。測定部８はトル
ク検出器５の測定値を取り込み、あらかじめ設定されて
いる基準トルクと比較して、測定したトルクが基準トル
クより小さい場合、基準トルクと測定したトルクとの差
を被測定ロータ１の漂遊負荷損であるとし、製品の選別
を行なう。To explain the operation of the above structure, the rotor 1 to be measured is inserted into the shaft 3 and is prevented from rotating so that the tailstock 4 prevents the rotor 1 from swinging. Thereafter, the external drive motor 6 rotates the shaft 3 at a constant rotation speed at which stray load loss is most likely to occur. At the same time, a predetermined voltage is applied to the stator 2 and the torque detector 5 measures the rotational torque generated by the rotor 1 to be measured at the above-mentioned constant rotational speed. The measuring unit 8 takes in the measured value of the torque detector 5 and compares it with a preset reference torque. If the measured torque is smaller than the reference torque, the difference between the reference torque and the measured torque is measured by the rotor 1 to be measured. Assuming that there is a stray load loss, the product is sorted.
【０００９】[0009]
【発明の効果】以上の説明で明らかなように本発明の方
法は測定が簡単に行えるので、製造現場においてロータ
の漂遊負荷損を測定するのに適している。As is apparent from the above description, the method of the present invention can be easily measured, and is suitable for measuring the stray load loss of the rotor at the manufacturing site.
【図１】本発明の一実施例の測定方法を説明するための
図FIG. 1 is a diagram for explaining a measuring method according to an embodiment of the present invention.
【図２】従来の測定方法を説明するための図FIG. 2 is a diagram for explaining a conventional measurement method.
【符号の説明】 １ 被測定ロータ ２ ステータ ３ シャフト ５ トルク検出器 ６ 外部駆動用モータ ９ 軸受装置[Explanation of reference numerals] 1 rotor to be measured 2 stator 3 shaft 5 torque detector 6 external drive motor 9 bearing device
Claims (1)
のセンターを貫通し一端を軸受装置によって回転自在に
支持された片持ちシャフトと、このシャフトの軸受装置
側に連結されたトルク検出器と外部駆動用モータとを備
えた測定装置の、上記シャフトに上記ステータと適合す
る被測定ロータをまわり止めして反軸受側から装着し、
外部駆動用モータでシャフトを一定速度で駆動するとと
もにステータに所定電圧を印加して上記一定速度におい
て被測定ロータが発生するトルクをトルク検出器で測定
し、測定したトルクが所定の基準トルクより小さい場
合、基準トルクと測定したトルクとの差を被測定ロータ
の漂遊負荷損であるとする、ロータの漂遊負荷損の測定
方法。1. A stator around which a winding is wound, a cantilever shaft penetrating a center of the stator and having one end rotatably supported by a bearing device, and a torque detector connected to the bearing device side of the shaft. A measuring device having an external drive motor and a rotor to be measured that is fitted to the stator and is fixed to the shaft from the side opposite to the bearing,
An external drive motor drives the shaft at a constant speed and a predetermined voltage is applied to the stator to measure the torque generated by the measured rotor at the constant speed with a torque detector, and the measured torque is smaller than the predetermined reference torque. In this case, the stray load loss of the measured rotor is defined as the difference between the reference torque and the measured torque.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30013091A JP2932800B2 (en) | 1991-11-15 | 1991-11-15 | How to measure rotor stray load loss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30013091A JP2932800B2 (en) | 1991-11-15 | 1991-11-15 | How to measure rotor stray load loss |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05133821A true JPH05133821A (en) | 1993-05-28 |
| JP2932800B2 JP2932800B2 (en) | 1999-08-09 |
Family
ID=17881098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30013091A Expired - Fee Related JP2932800B2 (en) | 1991-11-15 | 1991-11-15 | How to measure rotor stray load loss |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2932800B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010014534A (en) * | 2008-07-03 | 2010-01-21 | Asmo Co Ltd | Cogging torque measurement method and cogging torque measuring device |
| JP6249433B1 (en) * | 2017-02-28 | 2017-12-20 | 三菱電機株式会社 | Cross current detection device, cross current detection method, and rotor |
-
1991
- 1991-11-15 JP JP30013091A patent/JP2932800B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010014534A (en) * | 2008-07-03 | 2010-01-21 | Asmo Co Ltd | Cogging torque measurement method and cogging torque measuring device |
| JP6249433B1 (en) * | 2017-02-28 | 2017-12-20 | 三菱電機株式会社 | Cross current detection device, cross current detection method, and rotor |
| WO2018158832A1 (en) * | 2017-02-28 | 2018-09-07 | 三菱電機株式会社 | Cross current detection device, cross current detection method, and rotor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2932800B2 (en) | 1999-08-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090528 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
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| LAPS | Cancellation because of no payment of annual fees |