JP2011039056A - 軸受状態監視装置及び方法 - Google Patents
軸受状態監視装置及び方法 Download PDFInfo
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- 238000000034 method Methods 0.000 title description 14
- 238000012806 monitoring device Methods 0.000 title 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/04—Bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/52—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
- F16C41/007—Encoders, e.g. parts with a plurality of alternating magnetic poles
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Rolling Contact Bearings (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
【解決手段】監視システムは磁化された組立体(200,240,350)を含み、該組立体は、シャフト(400,440)と、前記シャフトに結合された第1の軸受レース(202,242,354)と、複数の軸受玉(206,246)と、前記複数の軸受玉を介して前記第1の軸受レースに結合された第2の軸受レース(204,244,358)とを含む。前記磁化された組立体の一部分は、それについて符号化された磁界を持つ。本監視システムは、前記磁化された組立体に近接して位置決めされ且つ磁界を測定するように構成された磁界センサ(214,254,360)と、電流が前記軸受玉を通ることに起因して生じる磁界の変化を前記磁界センサによって検出するように構成された処理ユニット(215,249,361)とを含む。
【選択図】図4
Description
70 プロセス
100 リング
102 内面
104 外面
106 第1の軸方向の面
108 第2の軸方向の面
110 第1のリング電極
112 第2のリング電極
114 パルス電流
116 電流密度ベクトル
118 軸方向
120 戻り電流
122 平行な磁化線
200 ころ軸受
202 内レース
204 外レース
206 軸受玉
208 磁気的に符号化されたリング
210 接触点
212 接触点
214 磁界センサ
215 信号調整処理ユニット
217 外周
240 ころ軸受組立体
242 内レース
244 外レース
246 玉
248 磁気的に符号化されたリング
249 信号調整処理ユニット
250 接触点
251 内周
252 接触点
254 磁界センサ
300 強磁性リング
302 第1の軸方向の面
304 第2の軸方向の面
306 内面
308 外面
310 第1のリング電極
312 第2のリング電極
314 パルス電流
316 電流密度ベクトル
318 戻り電流
320 磁化
350 スラスト軸受
352 第1のスラスト軸受レース
354 第2のスラスト軸受レース
356 軸受玉
358 磁気的に符号化されたリング
360 磁界センサ
361 信号調整処理ユニット
400 シャフト
402 シャフト処理保持クランプ(SPHC)
404 シャフト処理保持クランプ(SPHC)
406 境界
408 境界
410 検知用符号化領域
412 流入電流
414 流出電流
440 シャフト
442 第1の電極
444 第2の電極
446 電気入力接点
448 電気出力接点
450 パルス電流
452 磁気的に符号化された領域
Claims (10)
- A)磁化された組立体(200,240,350)であって、
シャフト(400,440)と、
前記シャフト(400,440)に結合された第1の軸受レース(202,242,354)と、
複数の軸受玉(206,246)と、
前記複数の軸受玉(206,246)を介して前記第1の軸受レース(202,242,354)に結合された第2の軸受レース(204,244,358)と、
を含み、当該磁化された組立体(200,240,350)の一部分が、符号化された磁界を持っている、当該磁化された組立体(200,240,350)と、
B)前記磁化された組立体(200,240,350)に近接して位置決めされ且つ磁界を測定するように構成された磁界センサ(214,254,360)と、
C)電流が前記軸受玉(206,246)を通ることに起因して生じる磁界の変化を前記磁界センサ(214,254,360)によって検出するように構成された処理ユニット(215,249,361)と、
を有している電動機軸受状態監視システム。 - 前記磁界が永久的に符号化されている、請求項1記載のシステム。
- 前記磁界センサ(214,254,360)は、概して平行な磁力線の磁化を持つ面(208,251)に対して垂直に位置決めされている、請求項1記載のシステム。
- 前記磁界センサ(214)は、概して平行な磁力線の磁化を持つ面(217,251)に対して接戦方向に位置決めされている、請求項1記載のシステム。
- 前記第1の軸受レース(202,242)が内側の軸受レースを構成し、前記第2の軸受レースが外側の軸受レース(204,244)を構成し、また前記複数の軸受玉(206,246)が前記内側の軸受レースと前記外側の軸受レースとの間に半径方向に位置決めされている、請求項1記載のシステム。
- 前記組立体は更に、前記外側の軸受レース(204,244)及び前記内側の軸受レース(202,242)の内の一方に取り付けられた磁気的に符号化されたリング(208,248)を有し、前記磁気的に符号化されたリング(208,248)は、それについて永久的に符号化された磁界を持つ前記組立体の部分を構成している、請求項5記載のシステム。
- 前記第1の軸受レースが第1のスラスト軸受レース(354)を構成し、前記第2の軸受レース(358)が第2のスラスト軸受レースを構成し、前記軸受玉が前記第1のスラスト軸受レース(354)と前記第2のスラスト軸受レース(358)との間に軸方向に位置決めされている、請求項1記載のシステム。
- 前記システムは、前記第1のスラスト軸受レース(354)及び前記第2のスラスト軸受レース(358)の内の一方に取り付けられた磁気的に符号化されたリング(300)を有し、前記磁気的に符号化されたリング(300)は、それについて永久的に符号化された磁界を持つ前記組立体の部分を構成している、請求項7記載のシステム。
- 前記磁化は本質的に唯一つの方向に分極されている、請求項1記載のシステム。
- 前記磁界が、前記複数の軸受玉を通る電流密度ベクトルに対して実質的に垂直である、請求項1記載のシステム。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/542,046 | 2009-08-17 | ||
US12/542,046 US8229682B2 (en) | 2009-08-17 | 2009-08-17 | Apparatus and method for bearing condition monitoring |
Publications (3)
Publication Number | Publication Date |
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JP2011039056A true JP2011039056A (ja) | 2011-02-24 |
JP2011039056A5 JP2011039056A5 (ja) | 2013-09-12 |
JP5693083B2 JP5693083B2 (ja) | 2015-04-01 |
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Application Number | Title | Priority Date | Filing Date |
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JP2010181183A Active JP5693083B2 (ja) | 2009-08-17 | 2010-08-13 | 軸受状態監視装置及び方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US8229682B2 (ja) |
EP (1) | EP2288000A3 (ja) |
JP (1) | JP5693083B2 (ja) |
CN (1) | CN101995433B (ja) |
Cited By (2)
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US20110040495A1 (en) * | 2009-08-17 | 2011-02-17 | El-Refaie Ayman Mohamed Fawzi | Apparatus and method for bearing condition monitoring |
WO2016157347A1 (ja) * | 2015-03-30 | 2016-10-06 | 株式会社日立製作所 | 軸受電流監視装置、及び回転電機 |
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2009
- 2009-08-17 US US12/542,046 patent/US8229682B2/en active Active
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2010
- 2010-08-02 EP EP10171542.3A patent/EP2288000A3/en not_active Withdrawn
- 2010-08-13 JP JP2010181183A patent/JP5693083B2/ja active Active
- 2010-08-17 CN CN201010262686.3A patent/CN101995433B/zh active Active
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JP2007064778A (ja) * | 2005-08-31 | 2007-03-15 | Ntn Corp | センサ付車輪用軸受 |
JP2007108189A (ja) * | 2006-12-20 | 2007-04-26 | Nsk Ltd | 回転体の異常診断方法及び装置 |
JP2009014381A (ja) * | 2007-07-02 | 2009-01-22 | Nsk Ltd | 転がり軸受ユニットの状態量測定装置の検査方法 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US20110040495A1 (en) * | 2009-08-17 | 2011-02-17 | El-Refaie Ayman Mohamed Fawzi | Apparatus and method for bearing condition monitoring |
US8229682B2 (en) * | 2009-08-17 | 2012-07-24 | General Electric Company | Apparatus and method for bearing condition monitoring |
WO2016157347A1 (ja) * | 2015-03-30 | 2016-10-06 | 株式会社日立製作所 | 軸受電流監視装置、及び回転電機 |
Also Published As
Publication number | Publication date |
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US20110040495A1 (en) | 2011-02-17 |
US8229682B2 (en) | 2012-07-24 |
JP5693083B2 (ja) | 2015-04-01 |
EP2288000A3 (en) | 2016-11-23 |
CN101995433A (zh) | 2011-03-30 |
EP2288000A2 (en) | 2011-02-23 |
CN101995433B (zh) | 2014-03-12 |
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