WO2008149520A1 - Bearing device - Google Patents

Bearing device Download PDF

Info

Publication number
WO2008149520A1
WO2008149520A1 PCT/JP2008/001340 JP2008001340W WO2008149520A1 WO 2008149520 A1 WO2008149520 A1 WO 2008149520A1 JP 2008001340 W JP2008001340 W JP 2008001340W WO 2008149520 A1 WO2008149520 A1 WO 2008149520A1
Authority
WO
WIPO (PCT)
Prior art keywords
bearing device
preload
capacitance
bearing
rolling
Prior art date
Application number
PCT/JP2008/001340
Other languages
French (fr)
Japanese (ja)
Inventor
Masatoshi Mizutani
Original Assignee
Ntn Corporation
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 Ntn Corporation filed Critical Ntn Corporation
Publication of WO2008149520A1 publication Critical patent/WO2008149520A1/en

Links

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
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
    • 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
    • F16C25/00—Bearings for exclusively rotary movement adjustable for wear or play
    • F16C25/06—Ball or roller bearings
    • 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
    • F16C25/00—Bearings for exclusively rotary movement adjustable for wear or play
    • F16C25/06—Ball or roller bearings
    • F16C25/08—Ball or roller bearings self-adjusting
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/0009—Force sensors associated with a bearing
    • G01L5/0014—Force sensors associated with a bearing by using capacitive sensors
    • 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
    • F16C19/546—Systems with spaced apart rolling bearings including at least one angular contact bearing
    • F16C19/547—Systems with spaced apart rolling bearings including at least one angular contact bearing with two angular contact rolling bearings
    • F16C19/548—Systems with spaced apart rolling bearings including at least one angular contact bearing with two angular contact rolling bearings 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
    • F16C2229/00—Setting preload
    • 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
    • F16C2233/00—Monitoring condition, e.g. temperature, load, vibration
    • 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
    • F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
    • F16C2240/12—Force, load, stress, pressure
    • F16C2240/14—Preload
    • 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
    • F16C2322/00—Apparatus used in shaping articles
    • F16C2322/39—General build up of machine tools, e.g. spindles, slides, actuators

Abstract

A bearing device in which a preload acting on bearings can be obtained without causing electrodes to come into contact with a rotation body, production cost is reduced, and the life of a device component is extended. The bearing device is adapted such that spacers (4 (5)) are placed between raceway rings (3i, 3i (3g, 3g)) of axially arranged rolling bearings (3A, 3B) that receive a preload. The bearing device has an electrode (11) electrically connected to the stationary ring (3g) of the rolling bearing (3A) and also has an electrode (12) provided on a member fixed to the stationary ring (3g) and electrically connected to the rotation ring (3i) via the capacitance forming section (3B) that is a different part from the rolling bearing (3A). The bearing device further has capacitance measurement means (9) for measuring the capacitance (C) between the pair of the electrodes (11, 12) and preload detection means (10) for detecting a preload on the rolling bearings (3A, 3B) based on values measured by the capacitance measurement means (9).
PCT/JP2008/001340 2007-06-04 2008-05-29 Bearing device WO2008149520A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-147766 2007-06-04
JP2007147766A JP2008298252A (en) 2007-06-04 2007-06-04 Bearing device

Publications (1)

Publication Number Publication Date
WO2008149520A1 true WO2008149520A1 (en) 2008-12-11

Family

ID=40093352

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/001340 WO2008149520A1 (en) 2007-06-04 2008-05-29 Bearing device

Country Status (3)

Country Link
JP (1) JP2008298252A (en)
TW (1) TW200923334A (en)
WO (1) WO2008149520A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140248015A1 (en) * 2013-03-01 2014-09-04 Jtekt Corporation Rolling bearing device
CN113167327A (en) * 2018-09-27 2021-07-23 采埃孚股份公司 Measuring assembly for lubricant

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4954136B2 (en) * 2008-04-16 2012-06-13 Ｎｔｎ株式会社 Bearing device
JP5933351B2 (en) * 2012-06-08 2016-06-08 加藤　平三郎 Bearing device
JP6550697B2 (en) * 2014-07-23 2019-07-31 株式会社ジェイテクト Rolling bearing device and oil supply unit
JP6446887B2 (en) * 2014-07-23 2019-01-09 株式会社ジェイテクト Rolling bearing device and oil supply unit

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07120334A (en) * 1993-10-21 1995-05-12 Nippon Seiko Kk Apparatus for measuring thrust load at rotary supporting part
JP2000084702A (en) * 1998-09-08 2000-03-28 Toshiba Mach Co Ltd Machine tool spindle device
JP2005133891A (en) * 2003-10-31 2005-05-26 Ntn Corp Preload measuring method and device for bearing
JP2007239779A (en) * 2006-03-06 2007-09-20 Ntn Corp Bearing state inspection device
JP2007240491A (en) * 2006-03-13 2007-09-20 Ntn Corp Bearing state inspecting apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07120334A (en) * 1993-10-21 1995-05-12 Nippon Seiko Kk Apparatus for measuring thrust load at rotary supporting part
JP2000084702A (en) * 1998-09-08 2000-03-28 Toshiba Mach Co Ltd Machine tool spindle device
JP2005133891A (en) * 2003-10-31 2005-05-26 Ntn Corp Preload measuring method and device for bearing
JP2007239779A (en) * 2006-03-06 2007-09-20 Ntn Corp Bearing state inspection device
JP2007240491A (en) * 2006-03-13 2007-09-20 Ntn Corp Bearing state inspecting apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140248015A1 (en) * 2013-03-01 2014-09-04 Jtekt Corporation Rolling bearing device
US9228611B2 (en) * 2013-03-01 2016-01-05 Jtekt Corporation Rolling Bearing Device
US9556910B2 (en) 2013-03-01 2017-01-31 Jtekt Corporation Rolling bearing device
CN113167327A (en) * 2018-09-27 2021-07-23 采埃孚股份公司 Measuring assembly for lubricant
CN113167327B (en) * 2018-09-27 2023-02-10 采埃孚股份公司 Assembly with bearing, lubricant line, container and sensor

Also Published As

Publication number Publication date
TW200923334A (en) 2009-06-01
JP2008298252A (en) 2008-12-11

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