WO2010066293A1 - Cage pour roulement à rouleaux, en particulier pour roulement à rouleaux utilisé dans un générateur d’éolienne - Google Patents

Cage pour roulement à rouleaux, en particulier pour roulement à rouleaux utilisé dans un générateur d’éolienne Download PDF

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Publication number
WO2010066293A1
WO2010066293A1 PCT/EP2008/067217 EP2008067217W WO2010066293A1 WO 2010066293 A1 WO2010066293 A1 WO 2010066293A1 EP 2008067217 W EP2008067217 W EP 2008067217W WO 2010066293 A1 WO2010066293 A1 WO 2010066293A1
Authority
WO
WIPO (PCT)
Prior art keywords
cage
balls
rolling bearing
circumferential
diameter
Prior art date
Application number
PCT/EP2008/067217
Other languages
English (en)
Inventor
Thierry Adane
Stéphane CORDIER
Jean-Luc Gardelle
Jean-Marie Gerard
Original Assignee
Aktiebolaget Skf
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 Aktiebolaget Skf filed Critical Aktiebolaget Skf
Priority to PCT/EP2008/067217 priority Critical patent/WO2010066293A1/fr
Publication of WO2010066293A1 publication Critical patent/WO2010066293A1/fr

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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/38—Ball cages
    • F16C33/3887—Details of individual pockets, e.g. shape or ball retaining means
    • 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
    • F16C33/38—Ball cages
    • F16C33/3837—Massive or moulded cages having cage pockets surrounding the balls, e.g. machined window cages
    • F16C33/3862—Massive or moulded cages having cage pockets surrounding the balls, e.g. machined window cages comprising two annular parts joined together
    • 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
    • F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
    • F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
    • 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
    • F16C2240/40—Linear dimensions, e.g. length, radius, thickness, gap
    • 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
    • F16C2240/40—Linear dimensions, e.g. length, radius, thickness, gap
    • F16C2240/44—Hole or pocket sizes
    • 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
    • F16C2240/40—Linear dimensions, e.g. length, radius, thickness, gap
    • F16C2240/46—Gap sizes or clearances
    • 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
    • F16C2360/00—Engines or pumps
    • F16C2360/31—Wind motors
    • 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
    • F16C2380/00—Electrical apparatus
    • F16C2380/26—Dynamo-electric machines or combinations therewith, e.g. electro-motors and generators

Definitions

  • 2007/01 16395 discloses a rolling bearing having a retaining cage including elliptical pockets for the balls.
  • the pockets define smaller and larger spaces in the axial and circumferential directions of the rolling bearing, respectively, between them and the balls so as to increase the contact area between these two elements, thereby reducing the contact pressure therebetween and the vibrations.
  • One aim of the present invention is to overcome the aforementioned drawback.
  • the cage is adapted for a rolling bearing comprising an inner ring, an outer ring and at least one row of balls held by the cage between the rings.
  • the cage is provided with a plurality of elliptical pockets for maintaining the circumferential spacing of the balls, circumferential spaces being provided between a ball and the corresponding pocket.
  • the circumferential spaces are less than 3 ,5 % of the diameter of the balls in the circumferential direction.
  • the cage has therefore a limited risk of damage, thus increasing the reliability and service life of the rolling bearing.
  • the circumferential spaces are comprised between 1 ,5 and 2,5 % of the diameter of the balls, and preferably equal to 2 % of said diameter.
  • the cage may comprise a retaining portion for maintaining the balls in the axial direction.
  • Axial spaces provided between the balls and the retaining portion may be less than 0, 1 % of the diameter of the balls, and preferably equal to 0,07 % of said diameter.
  • the cage guides the balls in the axial direction and thus reduces the collisions in this direction even if the inner and outer rings are misaligned.
  • the cage also comprises a guiding portion for the guiding of the cage by the balls, the retaining portion being extended by said guiding portion.
  • the cage comprises two half-cages.
  • the cage can be formed from metal or from thermoplastic.
  • the invention further relates to a rolling bearing comprising an inner ring, an outer ring, at least one row of balls between said rings, and a cage comprising a plurality of elliptical pockets for maintaining the circumferential spacing of the balls, circumferential spaces being provided between a ball and the corresponding pocket.
  • the circumferential spaces are less than 3 ,5 % of the diameter of the balls.
  • FIG. 1 is an axial half-section of a rolling bearing according to a first embodiment of the invention
  • FIG. 2 and 3 are views in axial section on H-II and III-III, respectively, of Figure 1 ,
  • FIG. 4 is a perspective view of a cage of the rolling bearing of Figure 1 .
  • FIG. 5 is an axial half-section of a rolling bearing according to a second embodiment of the invention.
  • Figure 1 to 4 show the structure of a rolling bearing 1 comprising an inner ring 2, an outer ring 3 , between which is housed a row of rolling elements 4, which in this case are balls, and a cage 5 for retaining the circumferential space of the identical balls 4.
  • the inner and outer rings 2, 3 are concentric and symmetric with respect to a transverse radial plane passing through the centre of the rolling bearing.
  • the inner ring 2 is of the solid type.
  • a "solid ring” is to be understood as a ring obtained by machining with removal o f material (by turning, grinding) from tube stock, bar stock, rough forgings and/or rolled blanks.
  • the inner ring 2 comprises a bore 2a of cylindrical shape delimited by opposing radial lateral surfaces 2b and 2c, and an outer cylindrical surface 2d onto which is formed a toroidal circular raceway
  • the two rings 2, 3 are separated radially from one another by an annular space 6 in which the cage 5 rotates. Radial gaps are provided between the cage 5 and the inner and outer rings 2, 3.
  • the cage 5 is axially offset relative to the radial surface 2b, 3b and 2c, 3c of said rings towards the interior of the rolling bearing 1.
  • the cage 5 receives and holds the balls 4 with a uniform circumferential spacing.
  • the cage 5 has a plurality of identical elliptical pockets 7 forming housings for the balls 4.
  • the major axis o f each of the elliptical pockets extends in the rotational or circumferential direction of the rolling bearing 1 , and the minor axis extends in the axial direction.
  • the cage 5 is here composed of two identical half-cages 8 , 9 having open cavities which constitute the pockets when said half-cages 8, 9 are axially fixed one relative to the other.
  • any appropriate fixing means may be used, for example rivets 13 uniformly spaced apart in the circumferential direction as shown on Figure 4.
  • the cage 5 comprises an upper radial portion 10 facing the outer ring 3 and radially extended by a lower conical portion 1 1 facing the inner ring 2 and extending inwards towards the balls 4.
  • the radial portion 10 and the conical portion 1 1 define the elliptical pockets 7.
  • the conical portion 1 1 constitutes a guiding portion for the guiding o f the cage 5 by the balls 4.
  • the radial portion 10 is adapted to hold the balls 4 in the axial direction.
  • the axial dimension of the elliptical pockets 7 is slightly greater than that the diameter of the balls 4. More precisely, small axial spaces provided between the balls 4 and the radial portion 10 are advantageously less than 0, 1 % of the diameter of the balls 4, for example equal to 0,07 % of said diameter.
  • the radial portion 10 is also adapted to limits contacts between the cage 5 and the ball 4 along the circumferential direction of the rolling bearing 1 , i.e. along the major axis of the elliptical pockets 7. To this end, circumferential spaces S are defined between the balls 4 and the radial portion 10 of the cage 5.
  • spaces S are less than 3 ,5 % of the diameter of the balls, advantageously comprised between 1 ,5 and 2,5 % of said diameter, and preferably equal to 2 %. As shown on Figure 3 , spaces S are also provided in the circumferential direction between the balls 4 and the conical portion 1 1 of the cage 5.

Landscapes

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

Abstract

La cage 5 est conçue pour un roulement à rouleaux comprenant un anneau intérieur 2, un anneau extérieur 3 et au moins une rangée de billes 4 maintenues par la cage entre les anneaux. La cage comprend une pluralité de poches elliptiques 7 destinées à maintenir l’espacement circonférentiel des billes, des espaces circonférentiels se trouvant entre une bille et la poche correspondante. Les espaces circonférentiels sont inférieurs à 3,5 % du diamètre des billes dans la direction circonférentielle.
PCT/EP2008/067217 2008-12-10 2008-12-10 Cage pour roulement à rouleaux, en particulier pour roulement à rouleaux utilisé dans un générateur d’éolienne WO2010066293A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2008/067217 WO2010066293A1 (fr) 2008-12-10 2008-12-10 Cage pour roulement à rouleaux, en particulier pour roulement à rouleaux utilisé dans un générateur d’éolienne

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2008/067217 WO2010066293A1 (fr) 2008-12-10 2008-12-10 Cage pour roulement à rouleaux, en particulier pour roulement à rouleaux utilisé dans un générateur d’éolienne

Publications (1)

Publication Number Publication Date
WO2010066293A1 true WO2010066293A1 (fr) 2010-06-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/067217 WO2010066293A1 (fr) 2008-12-10 2008-12-10 Cage pour roulement à rouleaux, en particulier pour roulement à rouleaux utilisé dans un générateur d’éolienne

Country Status (1)

Country Link
WO (1) WO2010066293A1 (fr)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011088640A1 (de) * 2011-12-15 2013-06-20 Schaeffler Technologies AG & Co. KG Kugellagerkäfig, sowie hiermit versehenes Rillenkugellager
DE102012207058A1 (de) * 2012-04-27 2013-10-31 Schaeffler Technologies AG & Co. KG Kugelführungskäfig für ein Axialkugellager
GB2503088A (en) * 2012-06-13 2013-12-18 Schaeffler Technologies Ag A two-piece rolling element cage
WO2014056491A3 (fr) * 2012-10-12 2014-06-05 Schaeffler Technologies AG & Co. KG Cage pour roulement ainsi que son procédé de fabrication
WO2014167107A1 (fr) * 2013-04-11 2014-10-16 Aktiebolaget Skf Palier de roulement comportant des éléments de roulement disposés dans plusieurs segments de cage
CN104165187A (zh) * 2014-08-01 2014-11-26 浙江凯迪汽车部件工业有限公司 一种滚珠轴承保持架
DE102014008763A1 (de) * 2014-06-12 2015-12-17 Gebrüder Reinfurt GmbH & Co. KG Kugellager-Käfig und Kugellager
US20160025134A1 (en) * 2013-04-16 2016-01-28 Nsk Ltd. Cage for angular ball bearing
WO2016016111A3 (fr) * 2014-07-31 2016-03-31 Aktiebolaget Skf Cage de roulement ou segment de cage de roulement et procédé de fabrication d'une cage de roulement ou d'un segment de cage de roulement
DE102015215460A1 (de) * 2015-08-13 2017-02-16 Schaeffler Technologies AG & Co. KG Schrägkugellager
DE102015224859A1 (de) 2015-12-10 2017-06-14 Schaeffler Technologies AG & Co. KG Kugellagerkäfig
CN109469682A (zh) * 2018-12-26 2019-03-15 无锡市第二轴承有限公司 一种超高速轴承保持架
US11009074B1 (en) 2019-11-11 2021-05-18 Aktiebolaget Skf Lightweight bearing cage for turbine engines and method of forming a lightweight bearing cage
US20220112918A1 (en) * 2020-10-10 2022-04-14 SKF (China) Co Ltd Bearing cage and applications thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001012476A (ja) * 1999-06-30 2001-01-16 Nsk Ltd 転がり軸受
US20040234181A1 (en) * 2003-04-18 2004-11-25 Umemitsu Kobayashi Synthetic resin retainer and angular ball bearing
JP2007040430A (ja) * 2005-08-03 2007-02-15 Ntn Corp 鉄板プレス保持器およびこれを組み込んだアンギュラ玉軸受
DE102006024375A1 (de) * 2006-05-24 2007-11-29 Schaeffler Kg Wälzlager mit reduzierter Käfigtaschenluft

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001012476A (ja) * 1999-06-30 2001-01-16 Nsk Ltd 転がり軸受
US20040234181A1 (en) * 2003-04-18 2004-11-25 Umemitsu Kobayashi Synthetic resin retainer and angular ball bearing
JP2007040430A (ja) * 2005-08-03 2007-02-15 Ntn Corp 鉄板プレス保持器およびこれを組み込んだアンギュラ玉軸受
DE102006024375A1 (de) * 2006-05-24 2007-11-29 Schaeffler Kg Wälzlager mit reduzierter Käfigtaschenluft

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SCHAEFFLER GRUPPE INDUSTRIE: "Wälzlager HR1 - Kugellager, Rollenlager, Nadellager, Laufrollen, Lager für Gewindetriebe, Spannlager/Gehäuseeinheiten, Lagergehäuse, Zubehör", 31 January 2006, STÜRTZ GMBH, GERMANY, XP002521759 *

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011088640A1 (de) * 2011-12-15 2013-06-20 Schaeffler Technologies AG & Co. KG Kugellagerkäfig, sowie hiermit versehenes Rillenkugellager
US9261141B2 (en) 2011-12-15 2016-02-16 Schaeffler Technologies AG & Co. KG Ball bearing cage, and grooved ball bearing provided therewith
DE102012207058A1 (de) * 2012-04-27 2013-10-31 Schaeffler Technologies AG & Co. KG Kugelführungskäfig für ein Axialkugellager
GB2503088A (en) * 2012-06-13 2013-12-18 Schaeffler Technologies Ag A two-piece rolling element cage
US8888375B2 (en) 2012-06-13 2014-11-18 Schaeffler Technologies Gmbh & Co. Kg Overmolded cage
WO2014056491A3 (fr) * 2012-10-12 2014-06-05 Schaeffler Technologies AG & Co. KG Cage pour roulement ainsi que son procédé de fabrication
WO2014167107A1 (fr) * 2013-04-11 2014-10-16 Aktiebolaget Skf Palier de roulement comportant des éléments de roulement disposés dans plusieurs segments de cage
CN105164438B (zh) * 2013-04-11 2018-08-31 斯凯孚公司 具有设置在多个保持架部段中的滚动体的滚动轴承
CN105164438A (zh) * 2013-04-11 2015-12-16 斯凯孚公司 具有设置在多个保持架部段中的滚动体的滚动轴承
US20160025134A1 (en) * 2013-04-16 2016-01-28 Nsk Ltd. Cage for angular ball bearing
US10197096B2 (en) 2014-06-12 2019-02-05 Gebrüder Reinfurt GmbH & Co. KG Ball bearing cage, ball bearing, and method for producing same
DE102014008763A1 (de) * 2014-06-12 2015-12-17 Gebrüder Reinfurt GmbH & Co. KG Kugellager-Käfig und Kugellager
DE102014008763B4 (de) * 2014-06-12 2016-02-25 Gebrüder Reinfurt GmbH & Co. KG Kugellager-Käfig und Kugellager
WO2015188901A1 (fr) * 2014-06-12 2015-12-17 Gebr. Reinfurt Gmbh & Co. Kg Cage de roulement à billes, roulement à billes et procédé de fabrication de celle-ci
US10215234B2 (en) 2014-07-31 2019-02-26 Aktiebolaget Skf Rolling bearing cage or rolling bearing cage segment, and method for manufacturing a rolling bearing cage or rolling bearing cage segment
WO2016016111A3 (fr) * 2014-07-31 2016-03-31 Aktiebolaget Skf Cage de roulement ou segment de cage de roulement et procédé de fabrication d'une cage de roulement ou d'un segment de cage de roulement
CN104165187A (zh) * 2014-08-01 2014-11-26 浙江凯迪汽车部件工业有限公司 一种滚珠轴承保持架
DE102015215460A1 (de) * 2015-08-13 2017-02-16 Schaeffler Technologies AG & Co. KG Schrägkugellager
DE102015224859A1 (de) 2015-12-10 2017-06-14 Schaeffler Technologies AG & Co. KG Kugellagerkäfig
WO2017097295A1 (fr) 2015-12-10 2017-06-15 Schaeffler Technologies AG & Co. KG Cage de roulement à billes
CN109469682A (zh) * 2018-12-26 2019-03-15 无锡市第二轴承有限公司 一种超高速轴承保持架
US11009074B1 (en) 2019-11-11 2021-05-18 Aktiebolaget Skf Lightweight bearing cage for turbine engines and method of forming a lightweight bearing cage
US20220112918A1 (en) * 2020-10-10 2022-04-14 SKF (China) Co Ltd Bearing cage and applications thereof

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