EP2898229A1 - Lager mit indikator - Google Patents
Lager mit indikatorInfo
- Publication number
- EP2898229A1 EP2898229A1 EP13759125.1A EP13759125A EP2898229A1 EP 2898229 A1 EP2898229 A1 EP 2898229A1 EP 13759125 A EP13759125 A EP 13759125A EP 2898229 A1 EP2898229 A1 EP 2898229A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bearing
- indicator
- bearing according
- reaching
- cage
- 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.)
- Withdrawn
Links
- 230000002427 irreversible effect Effects 0.000 claims abstract description 9
- 238000005096 rolling process Methods 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims abstract description 3
- 230000001960 triggered effect Effects 0.000 claims abstract 2
- 239000007788 liquid Substances 0.000 claims description 5
- 239000003973 paint Substances 0.000 claims description 5
- 235000007164 Oryza sativa Nutrition 0.000 claims description 4
- 235000009566 rice Nutrition 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 3
- 230000035939 shock Effects 0.000 claims description 2
- 240000007594 Oryza sativa Species 0.000 claims 1
- 230000004048 modification Effects 0.000 abstract description 2
- 238000012986 modification Methods 0.000 abstract description 2
- 241000209094 Oryza Species 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 239000004922 lacquer Substances 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7816—Details of the sealing or parts thereof, e.g. geometry, material
-
- 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
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/12—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load
- F16C17/24—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load with devices affected by abnormal or undesired positions, e.g. for preventing overheating, for safety
-
- 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
- F16C19/522—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions related to load on the bearing, e.g. bearings with load sensors or means to protect the bearing against overload
-
- 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
- F16C19/525—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions related to temperature and heat, e.g. insulation
-
- 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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
- F16C33/583—Details of specific parts of races
- F16C33/586—Details of specific parts of races outside the space between the races, e.g. end faces or bore of inner ring
-
- 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
-
- 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
- F16C41/008—Identification means, e.g. markings, RFID-tags; Data transfer means
Definitions
- the invention relates to a bearing, in particular rolling bearing, comprising as bearing parts at least one bearing ring, a sealing element or - if the bearing is designed as a rolling bearing - a cage.
- Such bearings are designed and installed for rotatable and / or sliding storage of components. If the warehouse fails, it remains to be checked and if necessary to prove whether the damage is due to the fact that the warehouse was installed in a way for which it was not designed. For this purpose, the mechanical forces or stresses that have acted on the bearing during operation, to detect and prove.
- the operating state of a bearing can be monitored by means of electronic sensors, for example by means of piezoelectric pressure sensors or strain gauges, however, such sensors that provide a continuous electrical signal, consuming and not without re-design of the camp to install.
- This object is achieved according to the invention for the aforementioned bearing by a mechanically, in particular by shock and / or mechanical tensile or compressive stress releasable, arranged on the surface of the body of the bearing part indicator, which has an irreversible, optically detectable change upon reaching a limit.
- the indicator indicates whether or not the bearing has been exposed during operation to a load above the design limit, so that this overload can be identified as a possible cause of the damage.
- the indicator is easy to install without having to modify the bearing structurally.
- Suitable indicators are generally known in the field of packaging, in particular as shock-watch indicators or as rice paint, and can be used for bearings for a modified purpose. It is preferably provided that the indicator comprises a rice paint.
- the tear paint applied to the surface of the body of the bearing part exhibits line cracks which occur transversely to a tensile load direction and which are optically detectable by simple observation and not only qualitatively determine the achievement or exceeding of a mechanical stress, but also the detection of the load direction, along which the unacceptable mechanical stress has attacked.
- the indicator performs a color change when the limit value is reached.
- the indicator is a closed volume of a test liquid, in particular in a Glass tube, includes.
- Such indicators are basically known as shockwatch indicators and are based on the principle that an impact breaks through the surface tension of the test fluid so that the test fluid changes color.
- Such indicators can be used in bearings as impact indicators or as an indicator of exceeding an allowable limit speed.
- the indicator comprises a test film.
- the test film comprises a material which, when the limit value is reached, carries out a color change, so that, in particular, it is possible to detect mechanical stresses, especially on roller bearing cages, which consist of a stretchable material.
- Fig. 1 shows a plan view of an embodiment of a bearing according to the invention.
- Fig. 1 shows a trained as a rolling bearing, comprising as bearing parts a first, formed as an inner ring bearing ring 1, a second formed as an outer ring bearing ring 2, a cage 3 for guiding rolling elements, not shown, as well as a further bearing part illustrated bearing seal.
- a shock-indicator is arranged as the first indicator 4, in order to detect radially acting forces with respect to the axis of rotation of the bearing, which occur jerkily and reach a limit, so that the first indicator 4 has an optically detectable color change performs.
- the first indicator 4 comprises a closed volume of a test liquid in a glass tube, upon reaching the limit, the surface tension of the test liquid is broken and the test liquid performs the irreversible color change.
- a second indicator 5 is arranged, which comprises a test film which performs a visually detectable, irreversible color change by mechanical stresses, if they reach a limit .
- the second indicator 5 is arranged radially, ie in the direction of the centrifugal forces, directed, but could also be arranged in a modification of the illustrated embodiment in the circumferential direction of the cage 3, since in the circumferential direction, the material stresses in the cage 3 occur.
- a portion is provided with a rice paint, wherein one of the four sections with the reference numeral '6' is designated and a third indicator 6 identifies.
- the tear lacquer forms optically detectable, irreversible tear lines under mechanical tensile stresses, in particular transversely to the direction of the tensile stresses.
- a circular segment-shaped portion of a pressure measuring film is arranged in each case, one of which by the reference numeral, 7 'and the fourth indicator 7 identifies.
- the bearing further comprises at least two temperature indicators 8, 9, which are arranged on the cage 3, with respect to the axis of rotation radially opposite each other, on the lateral surface, adjacent to the end face of the cage 3, and perform an irreversible color change upon reaching a critical temperature which is optically detectable.
- the bearing further comprises a moisture indicator, not shown, which performs a visually detectable irreversible color change upon reaching a critical humidity in the camp;
- This moisture indicator is, for example, on the inner circumferential surface of the second bearing ring 2 or on the outer surface of the first bearing ring 1, near the end face of the respective bearing ring 1, 2, arranged to allow easy readout of the color of the moisture indicator.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012216762.5A DE102012216762A1 (de) | 2012-09-19 | 2012-09-19 | Lager |
PCT/DE2013/200102 WO2014044262A1 (de) | 2012-09-19 | 2013-08-06 | Lager mit indikator |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2898229A1 true EP2898229A1 (de) | 2015-07-29 |
Family
ID=49118257
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13759125.1A Withdrawn EP2898229A1 (de) | 2012-09-19 | 2013-08-06 | Lager mit indikator |
Country Status (5)
Country | Link |
---|---|
US (1) | US20150233418A1 (de) |
EP (1) | EP2898229A1 (de) |
CN (1) | CN104685236B (de) |
DE (1) | DE102012216762A1 (de) |
WO (1) | WO2014044262A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10019886B2 (en) * | 2016-01-22 | 2018-07-10 | Aktiebolaget Skf | Sticker, condition monitoring system, method and computer program product |
US20170213118A1 (en) * | 2016-01-22 | 2017-07-27 | Aktiebolaget Skf | Sticker, condition monitoring system, method & computer program product |
DE102017112869B3 (de) * | 2017-06-12 | 2018-03-22 | Schaeffler Technologies AG & Co. KG | Messanordnung zur Erfassung von Käfigbelastungen |
US11610440B2 (en) | 2019-08-27 | 2023-03-21 | Caterpillar Inc. | Remaining useful life prediction for a component of a machine |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3569695A (en) * | 1969-07-22 | 1971-03-09 | Schaefer Equip | Railroad car axle bearing overheat indicator |
US4425010A (en) * | 1980-11-12 | 1984-01-10 | Reliance Electric Company | Fail safe dynamoelectric machine bearing |
US4979400A (en) * | 1989-02-27 | 1990-12-25 | Proprietary Technology, Inc. | Force and elapsed time recording assembly |
JP3354567B2 (ja) * | 1990-07-17 | 2002-12-09 | 大豊工業株式会社 | すべり軸受 |
DE4134816A1 (de) * | 1991-10-22 | 1993-05-13 | Messerschmitt Boelkow Blohm | Beschichtung zum auffinden von druck- oder stossstellen an bauteilen |
DE19522543A1 (de) * | 1994-08-01 | 1996-02-08 | Ntn Toyo Bearing Co Ltd | Piezoelektrisches Film-Meßfühlersystem für Lager |
FR2736979B1 (fr) * | 1995-07-21 | 1997-08-14 | Roulements Soc Nouvelle | Dispositif et procede detecteur dynamometrique pour roulements et paliers |
DE19723442B4 (de) * | 1996-07-29 | 2010-04-15 | Karl Storz Gmbh & Co. Kg | Endoskop mit wenigstens einer Registriereinrichtung |
JP2003530565A (ja) * | 2000-04-10 | 2003-10-14 | ザ テイムケン コンパニー | 荷重を監視するためのセンサを備えたベアリングアセンブリ |
AU5444801A (en) * | 2000-08-29 | 2002-03-07 | Caterpillar Inc. | Wear indicator for a low friction bearing |
US6564635B2 (en) * | 2001-09-14 | 2003-05-20 | Pete D. Sherman | Bearing assembly with integral sensor for sensing rotation |
EP1521971A1 (de) * | 2002-06-14 | 2005-04-13 | 3M Innovative Properties Company | Shockanzeiger |
DE10323889A1 (de) * | 2003-05-27 | 2004-12-16 | Ehrfeld Mikrotechnik Ag | Wälzlager mit Polymerelektronik |
AT500826B8 (de) * | 2003-12-17 | 2007-02-15 | Miba Gleitlager Gmbh | Gleitlager |
DE102004005146B4 (de) * | 2004-02-03 | 2006-02-09 | Ab Skf | Maschinenkomponente mit integrierter Indikatoreinheit |
US7860663B2 (en) * | 2004-09-13 | 2010-12-28 | Nsk Ltd. | Abnormality diagnosing apparatus and abnormality diagnosing method |
US20090180722A1 (en) * | 2006-03-06 | 2009-07-16 | The Timken Company | Load sensing wheel end |
GB0609712D0 (en) * | 2006-05-16 | 2006-06-28 | Airbus Uk Ltd | Bearing failure indicator |
US8313240B2 (en) * | 2007-03-12 | 2012-11-20 | Aktiebolaget Skf | Sensorized bearing unit |
FI122119B (fi) * | 2008-05-26 | 2011-08-31 | Metso Paper Inc | Sovitelma, järjestelmä ja menetelmä rainanmuodostus- tai jälkikäsittelykoneella telan toimintaolosuhteiden mittaamiseksi |
WO2010072232A1 (en) * | 2008-12-22 | 2010-07-01 | Ab Skf | Sensorized bearing unit |
GB2472619B (en) * | 2009-08-12 | 2015-07-29 | Romax Technology Ltd | Bearing cartridge |
CN103597360B (zh) * | 2011-06-10 | 2015-09-09 | 肖克沃奇股份有限公司 | 撞击指示器 |
CN104285138A (zh) * | 2012-04-24 | 2015-01-14 | Skf公司 | 轴承监控方法和系统 |
-
2012
- 2012-09-19 DE DE102012216762.5A patent/DE102012216762A1/de not_active Withdrawn
-
2013
- 2013-08-06 US US14/428,828 patent/US20150233418A1/en not_active Abandoned
- 2013-08-06 WO PCT/DE2013/200102 patent/WO2014044262A1/de active Application Filing
- 2013-08-06 EP EP13759125.1A patent/EP2898229A1/de not_active Withdrawn
- 2013-08-06 CN CN201380046683.8A patent/CN104685236B/zh not_active Expired - Fee Related
Non-Patent Citations (2)
Title |
---|
None * |
See also references of WO2014044262A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN104685236B (zh) | 2017-07-18 |
US20150233418A1 (en) | 2015-08-20 |
DE102012216762A1 (de) | 2014-03-20 |
CN104685236A (zh) | 2015-06-03 |
WO2014044262A1 (de) | 2014-03-27 |
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Legal Events
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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17P | Request for examination filed |
Effective date: 20150420 |
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AX | Request for extension of the european patent |
Extension state: BA ME |
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DAX | Request for extension of the european patent (deleted) | ||
17Q | First examination report despatched |
Effective date: 20170209 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20180301 |
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P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230524 |