WO2021069013A1 - Cage de roulement en deux parties et palier de roulement doté d'un telle cage de roulement - Google Patents

Cage de roulement en deux parties et palier de roulement doté d'un telle cage de roulement Download PDF

Info

Publication number
WO2021069013A1
WO2021069013A1 PCT/DE2020/100790 DE2020100790W WO2021069013A1 WO 2021069013 A1 WO2021069013 A1 WO 2021069013A1 DE 2020100790 W DE2020100790 W DE 2020100790W WO 2021069013 A1 WO2021069013 A1 WO 2021069013A1
Authority
WO
WIPO (PCT)
Prior art keywords
cage
segments
designed
web
bearing
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/DE2020/100790
Other languages
German (de)
English (en)
Inventor
Bastian DIETRICH
Robert DRESSEL
Markus Scheidel
Mario Bruckmann
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 WO2021069013A1 publication Critical patent/WO2021069013A1/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
    • F16C33/38—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
    • F16C33/3875—Massive or moulded cages having cage pockets surrounding the balls, e.g. machined window cages comprising two annular parts joined together made from plastic, e.g. two injection moulded parts joined by a snap fit
    • 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
    • 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
    • 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
    • F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
    • F16C2226/50—Positive connections
    • F16C2226/70—Positive connections with complementary interlocking parts
    • F16C2226/76—Positive connections with complementary interlocking parts with tongue and groove or key and slot

Definitions

  • the invention relates to a two-part bearing cage according to the preamble forming the features of claim 1, which is particularly advantageously applicable to Ril ball bearings for high speeds. Furthermore, the invention relates to a rolling bearing with such a two-part bearing cage.
  • Such steel rivet cages are known for example from the documents DE 925 203 A and DE 88 16 173 U1 and consist of two identical ring halves made of sheet steel with molded pocket halves and connecting webs arranged therebetween, which are connected to one another by rivets.
  • Such steel rivet cages are primarily characterized by good running properties and low manufacturing costs and are suitable for operating temperatures greater than 130 ° C. and for high speeds.
  • Plastic snap cages on the other hand, consist of a circumferential side ring with pocket webs extending axially away from this on one side, which merge into two elastically flexible pocket claws which are spaced apart from one another through a space, which in pairs form several cage pockets surrounding the balls and are for example from the publications DE 199 37 664 A1 and DE 10 2009 013 978 A1 be known.
  • Such plastic snap cages are mainly manufactured from thermoplastics by injection molding and are distinguished due to good running and sliding properties as well as suitability for operating temperatures from -30 ° to + 130 ° C.
  • the cage bar subsegments designed as long segments have a length corresponding to about 95% to 100% of the width of the bearing cage, while the cage bar subsegments designed as short segments only have a length corresponding to approximately 40% to 45% of the width of the bearing cage.
  • the two-part bearing cage designed according to the invention is also characterized in that the cage web sub-segments formed as long segments from about 55% of their length each have a step in their material thickness to about half the height of the cross-section of the base body, while the cage web sub-segments designed as short segments initially have a material thickness corresponding to the height of the cross section of the base body and taper in the direction of the cage center axis.
  • plug-in pins and the pin pockets can alternatively also be designed with a trapezoidal cross-section, so that the plug-in pins can then additionally be supported in the pin pockets when they expand due to centrifugal force.
  • the assembly of the cage halves to form a complete bearing cage is carried out in such a way that the cage halves with their cage web sub-segments facing each other are initially offset by a cage pocket in the circumferential direction, so that the cage webs designed as long segments Partial segments of one cage half are arranged exactly opposite the cage web part segments, which are designed as short segments, of the other cage half.
  • the cage halves are then moved axially towards one another, the locking lugs sliding along the undersides of the cage web subsegments designed as short segments and the plug-in pins sliding over the upper sides of the cage web subsegments designed as long segments.
  • An expedient development of the two-part bearing cage designed according to the invention is furthermore that additional recesses are formed both in the upper sides of the cage web sub-segments designed as short segments and in the upper sides of the cage web subsegments designed as long segments, which are designed to reduce the weight or the mass of the cage web subsegments are provided.
  • These preferably rectangular recesses are preferably formed axially in the center next to the base bodies of the cage halves in the cage web subsegments and have the effect that the centrifugal forces acting on these cage web subsegments during bearing operation are reduced to a minimum.
  • the undersides of the cage web sub-segments designed as Langseg are not formed with such recesses, since here the centrifugal forces acting on these cage web subsegments are used to reinforce the locking connection between the cage halves.
  • the length of the locking grooves in the ring-shaped base bodies of both cage halves in the circumferential direction is greater than the width of the locking lugs on the cage web sub-segments, so that there are clearances on both sides of the locking lugs through which tangential loads on the locking lugs result Damage to the locking lugs can be avoided.
  • the assembly of the cage halves and the lubricant feed to the cage pockets is significantly simplified by these free spaces and an expansion of the width tolerances of the locking lugs is made possible.
  • the second part of the object is in a rolling bearing with an inner bearing ring, an outer bearing ring and a plurality of rolling elements rolling between the bearing rings on raceways, which are held by a bearing cage at regular intervals from each other, according to claim 10 ultimately inven tion still solved in this way that the bearing cage is designed as a two-part bearing cage with the features of claims 1 to 9.
  • the two-part bearing cage designed according to the invention thus has the advantage over the two-part bearing cages known from the prior art that, due to the formation with cage web sub-segments, which are designed as long segments and short segments arranged alternately in the circumferential direction and extend over the full Extend the width of the complete Käfigste ge, having a dividing plane which is arranged in both cage halves outside of the middle of the cage pockets. Since the cage web sub-segments are also divided in such a way that, when the two cage halves are in the assembled state, they are arranged radially overlapping one another in pairs, the locking elements and locking receptacles also have sufficient stability against breakage in the event of a tangential load on the cage.
  • FIG. 1 a three-dimensional representation of the two-part bearing cage according to the invention before the assembly of the two cage halves;
  • FIG. 3 shows a plan view of one of the two cage halves of the two-part bearing cage designed according to the invention
  • FIG. 4 shows the cross section AA according to FIG. 3 through one of the two cage halves of the two-part bearing cage according to the invention.
  • a two-part bearing cage 1 for a Ril ball bearing can be seen, which consists of a first cage half 2 and a second cage half 3 designed identically to the first cage half 2.
  • these cage halves 2, 3 each have an annular base body 4, 5 and a plurality of cage web subsegments 6, 7, 8, 9 extending axially therefrom, which on their Ends are formed with locking elements 10, 11, 12, 13, which engage in complementary locking receptacles 14, 15, 16, 17 in the respective other cage half 2, 3.
  • the cage web subsegments 6, 8 formed as long segments after about 55% of their length Li each have a step 24, 25 in their material thickness to about half the height of the cross section of the base body 4 , 5, while the cage web subsegments 7, 9 formed as short segments initially have a material thickness corresponding to the height of the cross section of the base body 4, 5 and taper in the direction of the cage center axis.
  • closure elements 10, 12 are formed at the ends of the cage web sub-segments 6, 8 designed as long segments by locking lugs protruding radially to the outer circumference of the cage, while the closure elements 11, 13 at the ends of the short segments trained cage web subsegments 7, 9 by rectangular plug-in pins are formed.
  • the locking receptacles 14, 16 on the cage halves 2, 3 are on the one hand by below the cage web subsegments 7, 9 formed as short segments in the inner diameter of the annular basic body 4, 5, in cross-section wedge-shaped locking grooves and on the other hand by Steps 24, 25 formed on the cage web subsegments 6, 8 formed as long segments, molded-in pin pockets with a rectangular cross-section.
  • FIG. 2 also shows that the locking receptacles 14, 15 designed as wedge-shaped locking grooves in the ring-shaped base bodies 4, 5 in relation to the width of the locking lugs on the cage web partial segments 8, 9 in the circumferential direction on both sides 32, 33, which are provided to reduce the circumferential load on the locking lugs and at the same time are designed as lubricant feed channels to the cage pockets 19.
  • the two-part bearing cage 1 designed according to the invention can either be designed with cylindrical cage pockets 19 and can then be set as an outboard or inboard bearing cage 1 or can be designed with spherical cage pockets 19 and can then be used as a bearing cage 1 guided by rolling elements.
  • the bearing cage is made of a thermoplastic material and can be produced in an open-close injection molding tool without complex radial slides.

Landscapes

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

Abstract

L'invention concerne une cage de roulement (1) en deux parties comprenant une première moitié de cage (2) et une seconde moitié de cage (3) conçue de manière identique à la première moitié de cage (2), lesdites moitiés de cage (2, 3) présentent chacune un corps de base (4, 5) annulaire et une pluralité de segments partiels de barrette de cage (6, 7, 8, 9), qui comportent, à leurs extrémités, des éléments de fermeture (10, 11, 12, 13), lesquels entrent dans des cavités de fermeture (14, 15, 16, 17) réalisées de manière complémentaire dans l'autre moitié de cage (2, 3) respective, de sorte que lors de l'entrée des éléments de fermeture (10, 11, 12, 13) d'une moitié de cage (2, 3) dans les cavités de fermeture (14, 15, 16, 17) de l'autre moitié de cage (3, 2), des barrettes de cage (18) complètes sont formées, entre lesquelles sont agencées une pluralité d'alvéoles de cage (19) destinées à loger des corps de roulement. Ladite cage de roulement en deux parties se caractérise en ce que le segments partiels de barrettes de cage (6, 7, 8, 9) sont conçus sous forme de segments longs et de segments courts agencés dans chaque cas de manière alternée dans la direction périphérique, lesdits segments s'étendent sur la totalité ou approximativement sur toute la totalité de la largeur des barrettes de cage (18) complètes et, à l'état monté des deux moitiés de cage (2, 3), sont disposés par paire en chevauchement mutuel dans le sens radial.
PCT/DE2020/100790 2019-10-10 2020-09-11 Cage de roulement en deux parties et palier de roulement doté d'un telle cage de roulement Ceased WO2021069013A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019127287.4A DE102019127287B4 (de) 2019-10-10 2019-10-10 Zweiteiliger Lagerkäfig sowie Wälzlager mit einem solchen Lagerkäfig
DE102019127287.4 2019-10-10

Publications (1)

Publication Number Publication Date
WO2021069013A1 true WO2021069013A1 (fr) 2021-04-15

Family

ID=72561543

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2020/100790 Ceased WO2021069013A1 (fr) 2019-10-10 2020-09-11 Cage de roulement en deux parties et palier de roulement doté d'un telle cage de roulement

Country Status (2)

Country Link
DE (1) DE102019127287B4 (fr)
WO (1) WO2021069013A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20240167511A1 (en) * 2022-11-21 2024-05-23 Aktiebolaget Skf Two-part bearing cage for a rolling bearing
US12092158B2 (en) * 2022-11-21 2024-09-17 Aktiebolaget Skf Two-part bearing cage for a rolling bearing
US12305707B2 (en) 2023-04-19 2025-05-20 Aktiebolaget Skf Rolling-element bearing cage, rolling-element bearing, vehicle, and method for assembling a rolling-element bearing cage

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE925203C (de) 1952-09-17 1955-03-14 Kugelfischer G Schaefer & Co Zweiteiliger Blechkaefig fuer Waelzlager
DE8020776U1 (de) * 1980-10-30 Skf Kugellagerfabriken Gmbh, 8720 Schweinfurt Zwei- oder mehrteiliger Wälzlagerkäfig
DE8816173U1 (de) 1988-12-30 1989-02-09 FAG Kugelfischer Georg Schäfer KGaA, 8720 Schweinfurt Blechkäfig für Kugellager
DE19937664A1 (de) 1999-08-10 2001-02-15 Schaeffler Waelzlager Ohg Schnappkäfig für Kugellager
JP2006292097A (ja) * 2005-04-12 2006-10-26 Jtekt Corp 転がり軸受用保持器
DE102009013978A1 (de) 2009-03-19 2010-09-23 Schaeffler Technologies Gmbh & Co. Kg Käfig für Radialwälzlager
DE102010007789A1 (de) 2010-02-12 2011-08-18 Schaeffler Technologies GmbH & Co. KG, 91074 Kunststoffkäfig für ein Wälzlager
JP2012021599A (ja) * 2010-07-15 2012-02-02 Jtekt Corp 転がり軸受用保持器及び転がり軸受
DE102015220363A1 (de) 2015-10-20 2017-05-04 Aktiebolaget Skf Zweiteiliger Lagerkäfig

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3172710A (en) * 1962-02-13 1965-03-09 Gen Motors Corp Cage for antifriction bearings
AT376774B (de) * 1982-12-16 1984-12-27 Steyr Daimler Puch Ag Zweiteiliger waelzlagerkaefig, insbesondere fuer hohe drehzahlen
DE3908413C1 (en) * 1989-03-15 1990-05-10 Skf Linearsysteme Gmbh, 8720 Schweinfurt, De Cage for rolling bodies
DE102009038794B4 (de) * 2009-08-25 2019-08-22 Schaeffler Technologies AG & Co. KG Wälzlager
JP2012031920A (ja) * 2010-07-30 2012-02-16 Ntn Corp 高負荷容量型の針状ころ軸受
JP2015124885A (ja) * 2013-12-27 2015-07-06 ダイベア株式会社 転がり軸受用の樹脂製保持器、及び転がり軸受
JP2015187494A (ja) * 2014-03-13 2015-10-29 ダイベア株式会社 玉軸受用の樹脂製保持器、及び玉軸受

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8020776U1 (de) * 1980-10-30 Skf Kugellagerfabriken Gmbh, 8720 Schweinfurt Zwei- oder mehrteiliger Wälzlagerkäfig
DE925203C (de) 1952-09-17 1955-03-14 Kugelfischer G Schaefer & Co Zweiteiliger Blechkaefig fuer Waelzlager
DE8816173U1 (de) 1988-12-30 1989-02-09 FAG Kugelfischer Georg Schäfer KGaA, 8720 Schweinfurt Blechkäfig für Kugellager
DE19937664A1 (de) 1999-08-10 2001-02-15 Schaeffler Waelzlager Ohg Schnappkäfig für Kugellager
JP2006292097A (ja) * 2005-04-12 2006-10-26 Jtekt Corp 転がり軸受用保持器
DE102009013978A1 (de) 2009-03-19 2010-09-23 Schaeffler Technologies Gmbh & Co. Kg Käfig für Radialwälzlager
DE102010007789A1 (de) 2010-02-12 2011-08-18 Schaeffler Technologies GmbH & Co. KG, 91074 Kunststoffkäfig für ein Wälzlager
JP2012021599A (ja) * 2010-07-15 2012-02-02 Jtekt Corp 転がり軸受用保持器及び転がり軸受
DE102015220363A1 (de) 2015-10-20 2017-05-04 Aktiebolaget Skf Zweiteiliger Lagerkäfig

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20240167511A1 (en) * 2022-11-21 2024-05-23 Aktiebolaget Skf Two-part bearing cage for a rolling bearing
US12092158B2 (en) * 2022-11-21 2024-09-17 Aktiebolaget Skf Two-part bearing cage for a rolling bearing
US12305707B2 (en) 2023-04-19 2025-05-20 Aktiebolaget Skf Rolling-element bearing cage, rolling-element bearing, vehicle, and method for assembling a rolling-element bearing cage

Also Published As

Publication number Publication date
DE102019127287A1 (de) 2021-04-15
DE102019127287B4 (de) 2024-01-25

Similar Documents

Publication Publication Date Title
EP2129925B1 (fr) Cage axiale en plusieurs parties pour un palier à roulement de grande dimension
EP2236846B1 (fr) Palier à roulement
DE19738331B4 (de) Lagerkäfig
DE102009040008A1 (de) Käfig für ein Wälzlager und Wälzlager
DE3404200A1 (de) Kegelrollenlager
WO2011098357A1 (fr) Cage en plastique divisée à assemblage à encliquetage pour un palier à roulement
WO2021069008A1 (fr) Cage de roulement en deux parties et palier de roulement doté d'un telle cage de roulement
WO2021069013A1 (fr) Cage de roulement en deux parties et palier de roulement doté d'un telle cage de roulement
EP2409045B1 (fr) Palier a rouleaux spheriques, destine en particulier a recevoir une charge combinee radiale et axiale
WO2011018489A1 (fr) Segment de cage pour une cage en plastique de palier à roulement et palier à roulement pourvu d'un tel segment
EP2478235B1 (fr) Roulement à rouleaux sphériques
WO2018086650A1 (fr) Cage de palier à roulement dotée de mâchoires de fixation
EP2884128B1 (fr) Cage pour un palier à roulement et palier à rouleaux doté d'une cage
WO2011018491A1 (fr) Segment de cage pour une cage en plastique de palier à roulement et palier à roulement pourvu d'un tel segment
DE102007036113A1 (de) Linearkugellager
EP0353407B1 (fr) Cage à doigts de séparation pour roulement à rouleaux de grande dimension
DE102016211906A1 (de) Käfig für Kurbelwellenlagerung
DE102010042849B4 (de) Lagerkäfig und Verfahren zur Herstellung desselben
DE2319340C3 (de) Kugellager für Längsbewegungen
DE102008004033A1 (de) Käfig für Wälzkörper
EP3810944B1 (fr) Butée axiale a roulement
DE102009005389A1 (de) Pendelrollenlager mit Rollen und Verfahren zum Einbau der Rollen in das Pendelrollenlager
DE102019106487B4 (de) Wälzlagerkäfig
DE102021129190A1 (de) Lagerkäfig für Zylinderrollen und Zylinderrollenlager mit einem solchen Lagerkäfig
DE20013305U1 (de) Zylinderrollenlager

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20775177

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 20775177

Country of ref document: EP

Kind code of ref document: A1