JP2007292731A5 - - Google Patents
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- Publication number
- JP2007292731A5 JP2007292731A5 JP2007035221A JP2007035221A JP2007292731A5 JP 2007292731 A5 JP2007292731 A5 JP 2007292731A5 JP 2007035221 A JP2007035221 A JP 2007035221A JP 2007035221 A JP2007035221 A JP 2007035221A JP 2007292731 A5 JP2007292731 A5 JP 2007292731A5
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- inspection method
- stator
- electrode
- bearing
- 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.)
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Claims (10)
前記回転子に対して電気的に接続され一体的に回転する回転電極と、A rotating electrode that is electrically connected to the rotor and rotates integrally;
前記回転電極と非接触に配設された固定電極と、A fixed electrode disposed in non-contact with the rotating electrode;
前記回転電極と前記固定電極との間に介在させた導電性液状物質と、A conductive liquid material interposed between the rotating electrode and the fixed electrode;
を通じて、実質的に前記固定電極と前記固定子との間の電圧、電気抵抗、静電容量のいずれかに基づいて前記接触状態を判定することを特徴とする軸受検査方法。And determining the contact state substantially based on any one of a voltage, an electric resistance, and a capacitance between the fixed electrode and the stator.
液状物質を収容する収容部を有する回転電極を前記回転子に対して電気的に接続させると共に一体的に回転するよう固定する一方、前記収容部に導電性液状物質を収容させると共に収容させた前記導電性液状物質に前記回転電極と非接触に固定電極を浸漬させた状態で、前記固定電極と前記固定子との間の電圧、電気抵抗、静電容量のいずれかに基づいて前記接触状態を判定することを特徴とする軸受検査方法。 A bearing inspection method for determining a contact state as to whether or not the rotor and the stator are in contact with each other in a motor in which the rotor is rotatably supported by a fluid bearing with respect to the stator,
A rotating electrode having a receiving portion for storing a liquid substance is electrically connected to the rotor and fixed so as to rotate integrally, while the conductive liquid material is received and stored in the receiving portion. In a state where the fixed electrode is immersed in a conductive liquid substance in a non-contact manner with the rotating electrode, the contact state is determined based on any one of the voltage, electrical resistance, and capacitance between the fixed electrode and the stator. The bearing inspection method characterized by determining.
前記回転電極にはネジ部が形成され、The rotating electrode is formed with a screw portion,
前記ネジ部を前記ネジ穴に螺合させることで前記回転子に前記回転電極を固定することを特徴とする請求項１又は２に記載の軸受検査方法。The bearing inspection method according to claim 1, wherein the rotating electrode is fixed to the rotor by screwing the screw portion into the screw hole.
前記電源の他方の極は前記固定子に接続されることを特徴とする請求項１から４のいずれかに記載の軸受検査方法。The bearing inspection method according to claim 1, wherein the other pole of the power source is connected to the stator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007035221A JP4902389B2 (en) | 2006-03-28 | 2007-02-15 | Bearing inspection method and motor manufacturing method |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006086907 | 2006-03-28 | ||
| JP2006086907 | 2006-03-28 | ||
| JP2007035221A JP4902389B2 (en) | 2006-03-28 | 2007-02-15 | Bearing inspection method and motor manufacturing method |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2007292731A JP2007292731A (en) | 2007-11-08 |
| JP2007292731A5 true JP2007292731A5 (en) | 2010-01-21 |
| JP4902389B2 JP4902389B2 (en) | 2012-03-21 |
Family
ID=38763469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2007035221A Expired - Fee Related JP4902389B2 (en) | 2006-03-28 | 2007-02-15 | Bearing inspection method and motor manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4902389B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105510620A (en) * | 2016-01-13 | 2016-04-20 | 河北科技大学 | Measurement device of rotation speed ratio of floating ring bearing |
| CN105738114B (en) * | 2016-05-12 | 2018-03-27 | 核工业理化工程研究院 | Spherical liquid hydrodynamic bearing floats measuring method |
| DE102017212666B4 (en) * | 2017-07-24 | 2023-03-02 | Vdeh-Betriebsforschungsinstitut Gmbh | Method and device for determining the condition of a mechanical component |
| JP7044333B1 (en) * | 2020-09-30 | 2022-03-30 | 株式会社荏原製作所 | Machine learning device, sliding surface diagnostic device, inference device, machine learning method, machine learning program, sliding surface diagnostic method, sliding surface diagnostic program, inference method, and inference program |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58192749A (en) * | 1982-04-30 | 1983-11-10 | Hitachi Ltd | Electric contact detecting method |
| JPH0390998A (en) * | 1989-08-31 | 1991-04-16 | Shimadzu Corp | Equipment for transmitting power/signal between rotating side sensor and fixed side device |
| JPH10281145A (en) * | 1997-04-10 | 1998-10-20 | Nippon Seiko Kk | Fluid bearing device |
| JP2000076779A (en) * | 1998-09-03 | 2000-03-14 | Hitachi Ltd | Magnetic disk device |
| JP4674395B2 (en) * | 2000-10-20 | 2011-04-20 | 日本電産株式会社 | Bearing inspection method |
| JP2003172338A (en) * | 2001-12-07 | 2003-06-20 | Nippon Densan Corp | Bearing having conducting function |
-
2007
- 2007-02-15 JP JP2007035221A patent/JP4902389B2/en not_active Expired - Fee Related
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