WO2010045933A1 - Cage de palier à roulement - Google Patents

Cage de palier à roulement Download PDF

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Publication number
WO2010045933A1
WO2010045933A1 PCT/DE2009/001466 DE2009001466W WO2010045933A1 WO 2010045933 A1 WO2010045933 A1 WO 2010045933A1 DE 2009001466 W DE2009001466 W DE 2009001466W WO 2010045933 A1 WO2010045933 A1 WO 2010045933A1
Authority
WO
WIPO (PCT)
Prior art keywords
bearing cage
webs
rolling
peripheral
circumferential
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/DE2009/001466
Other languages
German (de)
English (en)
Inventor
Rudolf Zeidlhack
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.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler Technologies AG and Co KG
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 Schaeffler Technologies AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Publication of WO2010045933A1 publication Critical patent/WO2010045933A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • F16C33/46—Cages for rollers or needles
    • F16C33/467—Details of individual pockets, e.g. shape or roller retaining means
    • F16C33/4682—Details of individual pockets, e.g. shape or roller retaining means of the end walls, e.g. interaction with the end faces of the rollers
    • 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
    • F16C33/46—Cages for rollers or needles
    • F16C33/4617—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages
    • F16C33/4623—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages formed as one-piece cages, i.e. monoblock cages
    • F16C33/4635—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages formed as one-piece cages, i.e. monoblock cages made from plastic, e.g. injection moulded window cages
    • 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
    • F16C33/46—Cages for rollers or needles
    • F16C33/50—Cages for rollers or needles formed of interconnected members, e.g. chains
    • F16C33/502—Cages for rollers or needles formed of interconnected members, e.g. chains formed of arcuate segments retaining one or more rollers or needles
    • 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
    • F16C33/66—Special parts or details in view of lubrication
    • F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
    • F16C33/6681—Details of distribution or circulation inside the bearing, e.g. grooves on the cage or passages in the rolling elements
    • 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
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
    • F16C19/36—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers
    • F16C19/364—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
    • 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
    • F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
    • F16C2226/50—Positive connections
    • F16C2226/70—Positive connections with complementary interlocking parts
    • F16C2226/74—Positive connections with complementary interlocking parts with snap-fit, e.g. by clips
    • 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
    • F16C2300/00—Application independent of particular apparatuses
    • F16C2300/10—Application independent of particular apparatuses related to size
    • F16C2300/14—Large applications, e.g. bearings having an inner diameter exceeding 500 mm
    • 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

Definitions

  • the invention relates to a roller bearing cage with two circumferentially extending circumferential webs, each having a rolling bodies facing the inside, and with connecting webs extending between the peripheral webs and form with these pockets for receiving the rolling elements, wherein the roller bearing cage by frontal contact of the rolling elements is guided axially on the inside of at least one peripheral ridge.
  • Cages for rolling bearings are known in many forms and have proven to guide the rolling elements in the pockets provided by them.
  • large rolling bearings with a pitch circle diameter of more than 500 mm
  • cages composed of individual cage segments cages are used, which are made of weight saving reasons preferably made of plastics such as PEEK (polyether ether ketone).
  • PEEK polyether ether ketone
  • the present invention is generally suitable for rolling bearing cages without being limited to approximately composed of cage segments rolling bearing cages.
  • the invention is particularly advantageous for cages for slewing bearings with multiple rows of rolling elements - such as two-row tapered roller bearings - can be used, it is also not limited in this respect but basically applicable to all types of bearings.
  • a roller bearing cage of the aforementioned type is known from German Offenlegungsschrift DE 102006 022951 A1, which describes a cage segment for a cage of a rolling bearing with at least two circumferentially extending circumferential webs - also referred to as longitudinal webs - and at least two connecting webs (transverse webs).
  • the connecting webs form, with the respective section of the circumferential webs extending between them, at least one pocket for receiving a rolling element, in each of which a rolling element is guided axially by abutment of its end faces against the inner sides of the circumferential webs.
  • DE 10 2006 022 951 A1 is directed to the provision of a reliable, cost-effective rolling bearing cage with which on the one hand mechanical stresses of the cage and on the other hand an increased wear due to constraining forces can be avoided.
  • DE 102006 022 951 A1 does not address the problem of the supply of lubricant to the rolling elements in general and to the tribological conditions when the rolling element end faces slide on the so-called ribs of the bearing inner ring or bearing outer ring delimiting the axial displacement of the rolling bodies.
  • the inner sides of the circumferential webs are substantially flat and possibly - due to the dimensioning just large slewing bearings - provided with a minimum curvature in the circumferential direction.
  • Conventional rolling elements in particular tapered rollers, have an almost plane, if at all very slight, dimensioning effect.
  • Fügig spherically shaped WälzMechstirn Since the cage segments are usually performed relatively tightly over the Wälz redesignaten be touched by the peripheral webs especially the end face areas of the rolling elements, which also serve as the mentioned sliding and supporting surfaces to the ribs on the inner and outer rolling bearing rings.
  • the object of the invention to provide a roller bearing cage, which eliminates the above problems and in particular ensures a reliable undisturbed lubricant supply in the critical areas of the rolling bearing end faces.
  • a rolling bearing cage with the features of claim 1. Accordingly, a generic rolling bearing cage is characterized in that the inside in each case to the connecting webs has a return.
  • Advantageous embodiments of the invention are set forth in the following description and the dependent claims, the features of which can be used individually and in any combination with each other.
  • the inside of at least one of the circumferential ridges within the respective rolling-body-receiving pocket is radially outward of the central region of the portion of the circumferential ridge located between the connecting webs.
  • the recesses can be formed by inward material reductions of the circumferential ridge or by material recesses on the peripheral ridge in each case toward the outgoing connecting webs.
  • An alternative preferred development of the invention provides that the recesses are formed by an inner material thickening in the central web of the WälzSystemstirnseite facing portion of the circumferential web.
  • a particularly preferred measure for reducing these mechanical voltage peaks is according to the invention in that at least one undercut is provided in the connection area between the circumferential web and the respective outgoing connecting web.
  • the invention further relates to a rolling bearing, comprising a roller bearing cage according to the invention.
  • FIG. 1 shows a detail (segment) of a rolling bearing cage according to the invention
  • Figure 3 shows a detail of a roller bearing cage with a rolling element.
  • the segment 1 of a rolling bearing cage shown in FIG. 1 is part of a roller bearing with a pitch circle diameter of more than 500 mm, which is suitable for particularly demanding operating conditions and in particular for operating temperatures up to 150 ° C. and which have one or more rolling element rows can.
  • Such bearings can be particularly preferably used as a rotor main bearing in a wind turbine.
  • the segment 1 shown of the roller bearing cage according to the invention comprises two peripheral circumferential webs 2, 3, which are sometimes also referred to as longitudinal webs.
  • the respective radius of the peripheral ridge 2 is also referred to as outer peripheral ridge and the circumferential ridge 3 as an inner circumferential ridge.
  • Each circumferential ridge has an inner side 5, 6 (not shown explicitly in FIG. 1, but only indicated by dashed lines as an example) rolling elements 4.
  • the circumferential webs are interconnected by transverse connecting webs 10 to 14 and thereby at the same time in a plurality of circumferentially adjoining web sections -. 16, 17, 18, 19 - divided.
  • the rolling elements are guided by abutment of their respective radially outwardly or inwardly oriented end face 25, 26.
  • the inner sides 5, 6 each have in the connecting or transition areas to the connecting webs 10, 11; 12, 13, 14 recesses 30, 31, 32, 33 on.
  • the meaning and function of the recesses, which are preferably symmetrical and equally formed in each pocket, are described below by way of example with reference to the pocket 21 and with reference to her Cooperation with the rolling elements 4 explained.
  • the recesses 30, 31, 32, 33 are realized in the embodiment by internal material reductions 35, 36, 37, 38.
  • recesses 40, 41, 42, 43 are formed relative to the remaining inner side 5, 6.
  • Between these inner side portions 45, 46 of the circumferential webs 2, 3 are provided, which have a smaller spacing from one another.
  • the return jumps 40, 41, 42, 43 can also be formed by material thickenings on the inside in the region 45, 46 of the circumferential web 2 or 3 facing the central region 50, 51 of the rolling element end face.
  • transitions to the recesses 40 to 43 are characterized by comparatively large radii, e.g. 56, 57 formed, so that there is a very gentle and thus mechanical tips degrading transition geometry.
  • an undercut, e.g. 65, 66 are provided in the respective connection region between the respective peripheral ridge 2, 3 and the respective outgoing connecting web 11, 12 in each case.
  • Figure 2 illustrates the effect of this geometric configuration, already in Figure 1 by the thus realized, significantly extended distances between the facing surfaces - namely the respective end faces 25, 26 of the rolling elements 4 on the one hand and the facing inner surfaces 5, 6 of the circumferential webs 2, 3 on the other hand - is effected.
  • pocket 21 of the rolling elements 4 is arranged in the form of a tapered roller, wherein the peripheral regions, ie the outer edge regions of the WälzSstirn schizophrenia not with the material of the cage - ie with the peripheral webs 2, 3 - come into contact. Rather, a mechanical contact only between the central regions 50, 51 of the rolling element. 4 and the central portions 45, 46 of the web portions 17, 19 are provided.
  • FIG. 3 schematically shows a detail of a plan view of a cage according to the invention and a rolling element 4 located in a pocket. It can be seen that the rolling element 4 used with the cage according to the invention has a central recess 100 which is located at both end faces of the cage Rolling element 4 is formed. This depression
  • the recess 100 serves to center the rolling body during the processing of its lateral surface, so e.g. when grinding.
  • the recess 100 is adjoined radially on the outside by a flat surface 101 of the end face. This plane surface
  • the recess 100 is useful especially for large rolling elements for easier processing.
  • the rolling elements can be formed without corresponding recesses 100 at its end faces.
  • a circular, planar surface forms as a contact surface to the inside of the cage instead of the annular, flat surface 101 on each end face.

Landscapes

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

Abstract

L'invention concerne une cage de palier à roulement avec deux barrettes périphériques (2, 3) qui s'étendent dans la direction périphérique (U) et présentent respectivement un côté intérieur (5, 6) orienté vers les corps de roulement (4) et avec deux barrettes de liaison (11, 12) qui s'étendent entre les barrettes périphériques (2, 3) et forment avec celles-ci des poches (21) pour recevoir les corps de roulement (4), la cage de palier de roulement étant guidée axialement par appui du côté frontal des corps de roulement (4) sur le côté intérieur (5, 6) d'au moins une barrette périphérique (2, 3). Pour produire une cage de palier de roulement qui garantit une alimentation fiable et sans problème en lubrifiant dans les régions critiques des surfaces frontales de palier à roulement, il est prévu que le côté intérieur (5, 6) présente chaque fois un retrait (40, 41, 42, 43) en direction des barrettes de liaison (11, 12).
PCT/DE2009/001466 2008-10-25 2009-10-20 Cage de palier à roulement Ceased WO2010045933A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008053248.7 2008-10-25
DE102008053248A DE102008053248A1 (de) 2008-10-25 2008-10-25 Wälzlagerkäfig

Publications (1)

Publication Number Publication Date
WO2010045933A1 true WO2010045933A1 (fr) 2010-04-29

Family

ID=41820437

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2009/001466 Ceased WO2010045933A1 (fr) 2008-10-25 2009-10-20 Cage de palier à roulement

Country Status (2)

Country Link
DE (1) DE102008053248A1 (fr)
WO (1) WO2010045933A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9715274B2 (en) 2012-04-12 2017-07-25 Suricog Method for determining the direction in which a user is looking
US10138940B2 (en) * 2016-08-09 2018-11-27 General Electric Company Roller bearing cage for use in a gearbox

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010046270A1 (de) 2010-09-22 2012-03-22 Schaeffler Technologies Gmbh & Co. Kg Rollenlager
DE102012101651A1 (de) 2012-02-29 2013-08-29 Thyssenkrupp Rothe Erde Gmbh Verfahren zur Herstellung eines Wälzlagerkäfigs für ein Axial-Radial-Wälzlager sowie Axial-Radial-Wälzlager
JP2013242018A (ja) * 2012-05-22 2013-12-05 Jtekt Corp 転がり軸受用の分割保持器及びそれを用いた転がり軸受
DE102012210080A1 (de) * 2012-06-15 2013-12-19 Aktiebolaget Skf Wälzlagerkäfig
EP3104030A4 (fr) * 2014-02-07 2017-10-04 JTEKT Corporation Cage segmentée et roulement à rouleaux
DE102016223408A1 (de) 2016-11-25 2018-05-30 Schaeffler Technologies AG & Co. KG Pendelrollenlager
DE102022209077A1 (de) * 2022-09-01 2024-03-07 Aktiebolaget Skf Käfigsegment für einen Segmentkäfig

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7237598U (de) * 1971-10-22 1973-08-23 Skf Ind Trading And Development Co Nv Käfig fur Rollenlager
DE3327623A1 (de) * 1983-07-30 1985-02-07 FAG Kugelfischer Georg Schäfer KGaA, 8720 Schweinfurt Massiver fensterkaefig fuer zylinderrollenlager
JPH10267038A (ja) * 1997-03-24 1998-10-06 Nippon Seiko Kk ころ軸受用保持器
JPH1151060A (ja) * 1997-08-07 1999-02-23 Ntn Corp ころ軸受用保持器
EP1840392A2 (fr) * 2006-03-30 2007-10-03 JTEKT Corporation Cage de roulement à rouleaux et roulement à rouleaux coniques
DE102006022951A1 (de) 2006-05-17 2007-11-22 Schaeffler Kg Käfigsegment für einen Käfig eines Wälzlagers
JP2007321941A (ja) * 2006-06-05 2007-12-13 Nsk Ltd 軸受用保持器

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7237598U (de) * 1971-10-22 1973-08-23 Skf Ind Trading And Development Co Nv Käfig fur Rollenlager
DE3327623A1 (de) * 1983-07-30 1985-02-07 FAG Kugelfischer Georg Schäfer KGaA, 8720 Schweinfurt Massiver fensterkaefig fuer zylinderrollenlager
JPH10267038A (ja) * 1997-03-24 1998-10-06 Nippon Seiko Kk ころ軸受用保持器
JPH1151060A (ja) * 1997-08-07 1999-02-23 Ntn Corp ころ軸受用保持器
EP1840392A2 (fr) * 2006-03-30 2007-10-03 JTEKT Corporation Cage de roulement à rouleaux et roulement à rouleaux coniques
DE102006022951A1 (de) 2006-05-17 2007-11-22 Schaeffler Kg Käfigsegment für einen Käfig eines Wälzlagers
JP2007321941A (ja) * 2006-06-05 2007-12-13 Nsk Ltd 軸受用保持器

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9715274B2 (en) 2012-04-12 2017-07-25 Suricog Method for determining the direction in which a user is looking
US10138940B2 (en) * 2016-08-09 2018-11-27 General Electric Company Roller bearing cage for use in a gearbox

Also Published As

Publication number Publication date
DE102008053248A1 (de) 2010-04-29

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