WO2012156456A1 - Ensemble palier et procédé de fonctionnement correspondant - Google Patents

Ensemble palier et procédé de fonctionnement correspondant Download PDF

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Publication number
WO2012156456A1
WO2012156456A1 PCT/EP2012/059148 EP2012059148W WO2012156456A1 WO 2012156456 A1 WO2012156456 A1 WO 2012156456A1 EP 2012059148 W EP2012059148 W EP 2012059148W WO 2012156456 A1 WO2012156456 A1 WO 2012156456A1
Authority
WO
WIPO (PCT)
Prior art keywords
bearing
temperature
temperature difference
stored
determining
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.)
Ceased
Application number
PCT/EP2012/059148
Other languages
German (de)
English (en)
Inventor
Ferdinand Schweitzer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SKF AB
Original Assignee
SKF AB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SKF AB filed Critical SKF AB
Publication of WO2012156456A1 publication Critical patent/WO2012156456A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • F16C19/54—Systems consisting of a plurality of bearings with rolling friction
    • F16C19/541—Systems consisting of juxtaposed rolling bearings including at least one angular contact bearing
    • F16C19/542—Systems consisting of juxtaposed rolling bearings including at least one angular contact bearing with two rolling bearings with angular contact
    • F16C19/543—Systems consisting of juxtaposed rolling bearings including at least one angular contact bearing with two rolling bearings with angular contact in O-arrangement
    • 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

Definitions

  • the invention relates to a bearing assembly comprising at least one bearing, wherein the bearing has at least one bearing inner ring and at least one bearing outer ring, wherein at least one temperature sensor is arranged on or in the bearing inner ring and on or in the bearing outer ring. Furthermore, the invention relates to a method for operating such a bearing arrangement.
  • bearing rings can be equipped with a temperature sensor so that the bearing temperature can be monitored.
  • Critical operating conditions which may lead to a temporary destruction of the warehouse, can be detected and countermeasures initiated.
  • the invention is based on the object, so to train a bearing assembly of the type mentioned above and to propose a corresponding method for operating the bearing, with or with which it is possible to monitor the condition of the bearing improved and to receive timely instructions, such as of the Wear state of the bearing is.
  • the criteria are to be monitored in a targeted manner, providing optimal information about this.
  • the solution to this problem by the invention is characterized in that means for determining the temperature difference between the temperature of the bearing inner ring and the temperature of the bearing outer ring are provided, wherein the means are formed upon reaching or exceeding a predetermined value for the temperature difference, a signal issue.
  • This signal will usually be a visual or audible warning indicating that abnormal or critical storage conditions exist. However, it can also be provided that the signal merely causes the detected operating state to be stored in a storage means. By later evaluation of the memory contents, the status of the bearing can then be deduced.
  • the at least one bearing is preferably a roller bearing.
  • the temperature sensors are preferably arranged in the region of the load zone of the bearing.
  • a particularly preferred solution provides that two bearings are arranged, which are designed as angular contact ball bearings and are axially biased against each other.
  • At least one further sensor for detecting the proportion of oil in the air or the oil mist content in the space between the bearing rings can be provided, wherein the sensor is connected to the means for determining the temperature difference.
  • At least one of the temperature sensors arranged on or in the bearing rings can be designed to transmit the measured temperature value wirelessly to the means. Accordingly, monitoring of a rotating sensor without complicated wiring is possible.
  • the method for operating such a bearing assembly is characterized by the steps of: a) measuring the temperature of the at least one bearing inner ring and supplying the signal to the means for determining the temperature difference; b) measuring the temperature of the at least one bearing outer ring and supplying the signal to the means for determining the temperature difference; c) determining the temperature difference between the bearing inner ring and the bearing outer ring and comparing the detected temperature difference with a reference value stored in the means; d) outputting a signal if the determined temperature difference is greater than the stored reference value and / or storing the determined temperature difference in a memory element.
  • the proportion of oil in the air or the oil mist content in the space between the bearing rings can thereby be determined according to the training and fed to the funds.
  • the allowable reference value of the temperature difference can be determined from stored data or from a stored function as a function of the (measured) oil content in the air or of the oil mist content. Accordingly, for example, a lower temperature difference value comes into play when a poor lubrication state of the bearing (low proportion of oil in the air or low oil mist) is detected; However, if there are good lubricating conditions (high oil content in the air or a lot of oil mist), a higher temperature difference value can be tolerated.
  • the measured values can be stored periodically in the memory element, the stored values being stored in a readable or transferable manner.
  • means for generating an oil mist can be integrated into the warehouse.
  • known solutions that use rotating discs that dip into an oil bath and thus produce oil mist.
  • the oil mist is then continuously generated during operation of the bearing assembly, thus providing optimum lubrication all the time.
  • the self-generating oil mist lubrication is thus generated by the fact that below the bearing a trough-like reservoir - preferably in the form of a ring trough - is formed; in this reservoir, the lubricating oil is introduced.
  • the oil reservoir can by a sealing element, for. B. by a sealing ring formed.
  • the field of application of the proposed invention is broad.
  • the invention has been proven in a separator (storage of the shaft of the separator), which is used in the food industry.
  • machine tools come as an application in question.
  • the or the camp may or may in principle be lubricated grease.
  • the initial greasing usually suffices for the first approx. 1000 operating hours for bearing lubrication.
  • the internal oil mist generator works and feeds fresh oil mist to the bearing point, ie to the rolling elements.
  • the base oil of the rolling bearing grease is used as oil.
  • the oil level (seen in a vertical position) is adjusted so that the sealing lip upper edge of a seal is not overfilled and thus the oil does not overflow.
  • the contacting seals which are preferably used are designed so that they seal in a contact-tight manner up to sealing lip sliding speeds of 90 m / s. By appropriate arrangement of the bearings all the usual designs can be realized ("back-to-back”, “face-to-face”, “tandem").
  • a bearing arrangement is proposed with the proposed embodiment, which is characterized by good monitoring, so that on the maintenance condition always the best possible statements can be made.
  • the maintenance of the bearing can be planned improved.
  • more accurate statements can be made about the remaining service life of the bearing. This topic is also referred to as "Condition Monitoring”.
  • a bearing assembly 1 which has two rolling bearings 2 and 3.
  • the two rolling bearings 2, 3 are designed as deep groove ball bearings. They each have a bearing inner ring 4 and 5 and associated bearing outer rings 6 and 7. Between the bearing rings 4, 5 and 6, 7 balls are arranged. All bearing rings 4, 5, 6, 7 are each provided with a temperature sensor 8, 9, 10, 1 1. The sensor is arranged at a suitable location. However, it is preferably provided that the sensors - as shown - are arranged in the load zone.
  • the respective bearing ring temperatures are measured, ie the bearing inner ring temperature of the bearing 2 T n , the bearing outer ring temperature of the bearing 2 T A1 , the bearing inner ring temperature of the bearing 3 T I2 and the bearing outer ring temperature of the bearing 3 ⁇ 2 ⁇
  • the measured values are passed to means 12 for determining the temperature difference ⁇ .
  • this is wireless.
  • ⁇ 1 TAI - T N
  • ⁇ ⁇ ⁇ - T I determined and compared with a stored reference value AT MAX , where it depends only on the amount of the determined difference values.
  • a signal S is output via an acoustic or optical warning device.
  • the determined values are stored in a memory element 14, if appropriate with assignment of the time of their occurrence.
  • a functional relationship can be stored in the means 12, which changes the permissible reference value as a function of the lubrication state of the bearing arrangement. The value can thus be increased if good lubrication conditions are detected; it can also be reduced if it is determined by sensor 13 that the lubrication conditions are unfavorable.
  • This functional relationship may be based on empirical experience and be fit into a corresponding mathematical function (eg, a higher-order polynomial).
  • the monitoring then takes place to the effect that first the oil content in the air or the oil mist content in the room by sensor 13 is measured.
  • This value is entered into the aforementioned functional relationship and the permissible reference value AT max calculated to that extent. This reference value is then used as the basis for the current temperature monitoring.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

L'invention concerne un ensemble palier (1) comportant au moins un palier (2,3), ce palier (2,3) comprenant au moins une bague intérieure (4,5) et au moins une bague extérieure (6,7), au moins un capteur de température (8, 9, 10, 11) étant disposé sur ou dans la bague intérieure (4,5) et sur ou dans la bague extérieure (6,7). L'invention vise à mieux surveiller le comportement de fonctionnement de l'ensemble palier. A cet effet, des moyens (12) sont prévus pour déterminer la différence de température (ΔΤ) entre la température (TI1, TI2) de la bague intérieure (4, 5) et la température (TA1, TA2) de la bague extérieure (6, 7), ces moyens (12) étant conçus pour émettre un signal (S) lorsqu'une valeur prédéfinie de différence de température (ΔTmax) est atteinte. L'invention porte également sur un procédé permettant de faire fonctionner un ensemble palier de ce type.
PCT/EP2012/059148 2011-05-19 2012-05-16 Ensemble palier et procédé de fonctionnement correspondant Ceased WO2012156456A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011076099.7 2011-05-19
DE201110076099 DE102011076099B4 (de) 2011-05-19 2011-05-19 Verfahren zum Betrieb einer Lageranordnung

Publications (1)

Publication Number Publication Date
WO2012156456A1 true WO2012156456A1 (fr) 2012-11-22

Family

ID=46354157

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/059148 Ceased WO2012156456A1 (fr) 2011-05-19 2012-05-16 Ensemble palier et procédé de fonctionnement correspondant

Country Status (2)

Country Link
DE (1) DE102011076099B4 (fr)
WO (1) WO2012156456A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10215227B2 (en) * 2012-08-06 2019-02-26 Windfin B.V. Control method, program and system for controlling the bearing preload of a wind turbine and wind turbine comprising such control system
DE102020216210A1 (de) 2020-12-17 2022-06-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein System und Verfahren zur thermischen Überwachung großer Wälzlager

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4514123A (en) * 1981-10-29 1985-04-30 Kearney & Trecker Corporation Adaptive control system for machine tool or the like
JPH11118622A (ja) * 1997-10-17 1999-04-30 Nippon Seiko Kk 回転体装置
DE19944652A1 (de) * 1999-09-17 2002-05-16 Skf Gmbh Verfahren zum Betreiben einer Walzenanordnung und Lageranordnung für eine Walzenanordnung
JP2008157340A (ja) * 2006-12-22 2008-07-10 Ntn Corp 転がり軸受

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10017572B4 (de) * 2000-04-10 2008-04-17 INSTITUT FüR MIKROTECHNIK MAINZ GMBH Wälzlager mit fernabfragbaren Erfassungseinheiten
DE10121730A1 (de) * 2001-05-04 2002-11-28 Man B & W Diesel As Kopenhagen Verfahren zur Erhöhung der Explosionssicherheit einer Maschine sowie mit einer hierfür geeigneten Vorrichtung versehene Maschine
CH698379B1 (de) * 2004-05-10 2009-07-31 Hsu Chuan Li Arbeitsmaschine mit Mittel zur Verhinderung stagnierender Drehung an einer Welle.
JP2007138974A (ja) * 2005-11-15 2007-06-07 Nsk Ltd 温度センサ付転がり軸受
DE102006008176A1 (de) * 2006-02-22 2007-08-30 Ab Skf Lageranordnung mit mindestens einem Drei- oder Mehrringlager und Verfahren zur Überwachung einer solchen Lageranordnung
JP2009036312A (ja) * 2007-08-02 2009-02-19 Ntn Corp 軸受装置
DE102007036271A1 (de) * 2007-07-31 2009-02-05 Baumer Hübner GmbH Drehgeber mit Überwachung des Lagerverschleißes sowie Verfahren hierzu

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4514123A (en) * 1981-10-29 1985-04-30 Kearney & Trecker Corporation Adaptive control system for machine tool or the like
JPH11118622A (ja) * 1997-10-17 1999-04-30 Nippon Seiko Kk 回転体装置
DE19944652A1 (de) * 1999-09-17 2002-05-16 Skf Gmbh Verfahren zum Betreiben einer Walzenanordnung und Lageranordnung für eine Walzenanordnung
JP2008157340A (ja) * 2006-12-22 2008-07-10 Ntn Corp 転がり軸受

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10215227B2 (en) * 2012-08-06 2019-02-26 Windfin B.V. Control method, program and system for controlling the bearing preload of a wind turbine and wind turbine comprising such control system
DE102020216210A1 (de) 2020-12-17 2022-06-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein System und Verfahren zur thermischen Überwachung großer Wälzlager
DE102020216210B4 (de) 2020-12-17 2022-11-10 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein System und Verfahren zur thermischen Überwachung großer Wälzlager

Also Published As

Publication number Publication date
DE102011076099B4 (de) 2012-12-06
DE102011076099A1 (de) 2012-11-22

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