WO2011018320A2 - Ensemble palier pour une transmission de véhicule automobile, présentant une meilleure alimentation en lubrifiant - Google Patents

Ensemble palier pour une transmission de véhicule automobile, présentant une meilleure alimentation en lubrifiant Download PDF

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Publication number
WO2011018320A2
WO2011018320A2 PCT/EP2010/060653 EP2010060653W WO2011018320A2 WO 2011018320 A2 WO2011018320 A2 WO 2011018320A2 EP 2010060653 W EP2010060653 W EP 2010060653W WO 2011018320 A2 WO2011018320 A2 WO 2011018320A2
Authority
WO
WIPO (PCT)
Prior art keywords
inner ring
shaft
recesses
bearing arrangement
rolling elements
Prior art date
Application number
PCT/EP2010/060653
Other languages
German (de)
English (en)
Other versions
WO2011018320A3 (fr
Inventor
Mathias Cuijpers
Meike Rohrbeck
Original Assignee
Zf Friedrichshafen Ag
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 Zf Friedrichshafen Ag filed Critical Zf Friedrichshafen Ag
Publication of WO2011018320A2 publication Critical patent/WO2011018320A2/fr
Publication of WO2011018320A3 publication Critical patent/WO2011018320A3/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
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/042—Guidance of lubricant
    • F16H57/043—Guidance of lubricant within rotary parts, e.g. axial channels or radial openings in shafts
    • 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
    • F16C33/58—Raceways; Race rings
    • 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
    • F16C33/6659—Details of supply of the liquid to the bearing, e.g. passages or nozzles
    • F16C33/6677—Details of supply of the liquid to the bearing, e.g. passages or nozzles from radial inside, e.g. via a passage through the shaft and/or inner ring
    • 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
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0467—Elements of gearings to be lubricated, cooled or heated
    • F16H57/0478—Synchromesh devices
    • 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
    • F16C19/44—Needle bearings
    • F16C19/48—Needle bearings with two or more rows of 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
    • F16C2361/00—Apparatus or articles in engineering in general
    • F16C2361/61—Toothed gear systems, e.g. support of pinion shafts

Definitions

  • the invention relates to a bearing assembly for a motor vehicle transmission, with an inner ring which is mounted on a shaft, in particular a gear shaft, and on an outer diameter several rolling elements leads that allow a relative rotation between the inner ring and an outer member, in particular a loose wheel, wherein the inner ring and the shaft each have recesses for lubricant supply.
  • bearing arrangements are often used by means of the rolling elements of the respective storage targeted lubricant can be supplied.
  • bearings are designed in some applications such that adjacent parts can be supplied via the lubricant of the rolling elements of the bearing assembly with.
  • a bearing assembly which has an inner ring which is mounted on a shaft.
  • This inner ring carries on its outer diameter a plurality of rolling elements, which allow a relative rotation between an outer element in the form of an outer ring and the inner ring, and thus also the shaft.
  • a supply of the rolling elements with lubricant is achieved in this case from the outside over the axial edge regions of the inner ring and the outer member.
  • both the inner ring and the shaft each have recesses.
  • this recess is in the form of a radial bore, which is placed centrally in the axial direction and can be supplied via which lubricant of the rolling elements of a groove in the shaft. Over this groove, the lubricant then passes in the further course to the respective shaft component.
  • the bearing arrangement of the prior art has the disadvantage that a supply of lubricant to the adjacent component takes place via the centrally placed radial bore. The lubricant must therefore first reach the center of the bearing and is exposed to high displacement losses by the rolling elements, which increases the friction losses of the bearing assembly.
  • a lubricant supply of the rolling elements from the outside axially in certain applications, for example in the field of synchronizations of motor vehicle transmissions, due to the prevailing Baumraum conditions usually difficult.
  • This bearing arrangement should in this case be suitable in particular for use in the area of synchronization components of a motor vehicle transmission.
  • the invention includes the technical teaching that the recesses on the inner ring in the form of, at axial ends of the inner ring pronounced and extending in the radial direction recesses, which are distributed over the circumference of the inner ring and via which lubricant from the recesses of the shaft to the rolling elements and adjacent components can be fed.
  • recesses in this case recesses are meant at the axial ends of the inner ring, which are composed in cross section of one or more contours with curved and / or straight segments.
  • the recesses in cross section each have a curved course.
  • the shaft has on an outer diameter and in the region of the axial ends of the inner ring in each case via a circumferential groove, in which open respectively associated recesses of the shaft.
  • Achieve lubricant, even a small number of recesses in the shaft can provide multiple indentations in the inner ring.
  • the recesses are present on the shaft in the form of radially extending bores, which are each arranged in the region of the axial ends of the inner ring and with an axial bore in the middle of the shaft in communication. This allows a very compact supply of lubricant to the inner ring can be achieved.
  • the inner ring is made together with the indentations as a forging.
  • this makes it possible to manufacture the inner ring at low cost.
  • the rolling elements are arranged in two rows. As a result, the load capacity of the storage can be significantly increased.
  • the neighboring components are synchronizing rings of a synchronization.
  • the inventive design of the bearing assembly reliable cooling and lubrication of the synchronizer rings and thus a sufficient lifetime of the synchronization can be ensured.
  • Fig. 1 is a sectional view of the bearing assembly according to the invention.
  • FIG. 2 shows a perspective individual view of a shaft of the bearing arrangement according to the invention
  • FIG. 3 shows a perspective individual view of an inner ring
  • Fig. 4 is a perspective view of the assembly of the bearing assembly according to the invention.
  • Fig. 1 is a sectional view of the bearing assembly according to the invention can be seen.
  • This has an inner ring 1, which is mounted on a shaft 2, in this case a gear shaft, rotationally fixed and on an outer diameter several rolling elements 3 leads.
  • the rolling elements 3 are arranged in two rows, and guided in a common cage 4 and allow a relative rotation between the inner ring 1 and a loose wheel 5, which is arranged coaxially to the shaft 2.
  • a - here only partially shown - Synchronization 6 is provided, upon actuation in the art known manner a positive coupling of the idler gear 5 can be achieved with the shaft 2.
  • the shaft 2 has an axial bore 7, from which a plurality of radially extending bores 8 branch off.
  • the holes 8 are each arranged in the region of the axial ends of the inner ring 1 and open in the region of the outer diameter of the shaft 2 in each case in circumferential grooves 9A and 9B, the course of which is apparent in particular from the perspective view of the shaft 2 in Fig. 2.
  • the subsidized in this area lubricant can then pass from the grooves 9A and 9B on the recesses 10 on the inner ring 1 on the one hand between the cage 4 and the respective rolling elements 3 and on the other also the adjacent synchronization 6 are supplied. Due to the large cross sections of the holes 8, as well as due to the design of the grooves 9A and 9B and the recesses 10, this can be done with a small Flow resistance and off-center of the inner ring 1 happen so that low friction losses occur in the bearing assembly, but at the same time sufficient lubricant supply to the rolling elements 3 and the synchronization 6 is ensured.
  • the recesses 10 are distributed at the axial ends of the inner ring 1 and equidistantly over the circumference. Furthermore, from this, the curved course of the recesses 10 can be seen, whereby on the one hand a large flow area is created, but at the same time a sufficient contact surface of the inner ring 1 remains on the shaft 2, so that too high surface pressures can be prevented in this area.
  • FIG. 4 shows the assembly of the bearing assembly according to the invention, in which case both the idler gear 5 and the synchronization 6 is not shown.
  • each hole 8 is positioned centrally to a recess 10 on the inner ring 1, so that an optimal flow of lubricant to the rolling elements 3 is made possible.
  • the lubricant must travel only a very short distance from the bore 8 to the rolling elements 3.
  • the lubricant can reach this area via the grooves 9A and 9B, so that no alignment of the inner ring 1 with the shaft 2 during assembly is necessary.
  • the bearing arrangement By means of the bearing arrangement according to the invention, it is thus possible to ensure a sufficient supply of lubricant and cooling of the area of the rolling bodies 3 as well as components of the synchronization 6 and at the same time cause low friction losses during storage. Since this can be done without additional space requirements, the bearing assembly is particularly for applications in the field of motor vehicle zeugsetriebes, such as a manual or dual-clutch transmission, but also in planetary stages of an automatic transmission, suitable.

Landscapes

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

Abstract

L'invention concerne un ensemble palier pour une transmission de véhicule automobile, présentant une bague intérieure (1) qui est placée sur un arbre (2), en particulier un arbre de transmission, et qui guide, sur un diamètre extérieur, plusieurs cylindres (3) qui permettent une rotation relative entre la bague intérieure (1) et un élément extérieur, en particulier une roue folle (5), la bague intérieure (1) et l'arbre (2) présentant respectivement des évidements pour l'alimentation en lubrifiant. En outre, les évidements sont présents sur la bague intérieure (1) sous la forme de renfoncements (10) qui sont marqués aux extrémités axiales de la bague intérieure (1), s'étendent dans la direction radiale, et sont répartis sur la périphérie de la bague intérieure (1) et qui permettent d'alimenter les cylindres (3) et les composants adjacents en lubrifiant depuis les évidements de l'arbre (2).
PCT/EP2010/060653 2009-08-10 2010-07-22 Ensemble palier pour une transmission de véhicule automobile, présentant une meilleure alimentation en lubrifiant WO2011018320A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009028383A DE102009028383A1 (de) 2009-08-10 2009-08-10 Lageranordnung für ein Kraftfahrzeuggetriebe, mit verbesserter Schmiermittelversorgung
DE102009028383.8 2009-08-10

Publications (2)

Publication Number Publication Date
WO2011018320A2 true WO2011018320A2 (fr) 2011-02-17
WO2011018320A3 WO2011018320A3 (fr) 2011-04-21

Family

ID=43448014

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/060653 WO2011018320A2 (fr) 2009-08-10 2010-07-22 Ensemble palier pour une transmission de véhicule automobile, présentant une meilleure alimentation en lubrifiant

Country Status (2)

Country Link
DE (1) DE102009028383A1 (fr)
WO (1) WO2011018320A2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010042480A1 (de) * 2010-10-15 2012-04-19 Zf Friedrichshafen Ag Getriebe, insbesondere Schiffsgetriebe
SE537276C2 (sv) * 2013-07-16 2015-03-24 Scania Cv Ab Arrangemang för leda smörjmedel till ett rullningslager sombär upp ett kugghjul på en axel i en växellåda
DE102017206171A1 (de) * 2017-04-11 2018-10-11 Zf Friedrichshafen Ag Getriebe mit einem Stauelement
JP2021099148A (ja) * 2019-12-23 2021-07-01 ヤマハ発動機株式会社 変速装置および車両

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005001839A1 (de) 2005-01-14 2006-07-20 Zf Friedrichshafen Ag Schmiervorrichtung für eine Welle-Nabe-Verbindung mit einem benachbarten schmieröldurchströmten Lager

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7320320U (de) * 1973-12-20 Kugelfischer Schaefer G & Co Wälzlagerring mit Schmiermitteloffnung
DE493631C (de) * 1926-06-19 1930-03-11 Siemens Schuckertwerke Akt Ges Rollenlager
US2977161A (en) * 1954-11-23 1961-03-28 Gen Motors Corp Antifriction bearing and method of operation
US3528711A (en) * 1968-09-03 1970-09-15 Gen Motors Corp Bearing lubrication
US4384749A (en) * 1981-06-26 1983-05-24 The United States Of America As Represented By The Secretary Of The Air Force Reliability roller bearing
JPS63231021A (ja) * 1987-03-17 1988-09-27 Nippon Seiko Kk 転がり軸受の潤滑装置
JPS63158624U (fr) * 1987-04-07 1988-10-18
DE4332032B4 (de) * 1993-09-21 2005-02-24 Ina-Schaeffler Kg Druckmittelbeaufschlagbares Radiallager
DE19603975A1 (de) * 1996-02-05 1997-07-03 Daimler Benz Ag Schaltvorrichtung eines Zahnräderwechselgetriebes
DE19851897B4 (de) * 1998-11-11 2007-08-23 Zf Friedrichshafen Ag Kegelrollenlager
JP2004076810A (ja) * 2002-08-12 2004-03-11 Yanagawa Seiki Co Ltd トランスミッションの潤滑構造
DE10351132A1 (de) * 2003-11-03 2005-08-18 Zf Friedrichshafen Ag Anordnung von Kupplungen und Zahnrädern in einem Räderwechselgetriebe
DE102004009472A1 (de) * 2004-02-27 2005-09-15 Daimlerchrysler Ag Kraftfahrzeuggetriebe mit ölnebelgeschmierter zweireihiger Nadellagerung
JP2005291445A (ja) * 2004-04-02 2005-10-20 Ntn Corp 円すいころ軸受
JP2006258262A (ja) * 2005-03-18 2006-09-28 Nsk Ltd 複列転がり軸受
DE102007045368A1 (de) * 2007-09-22 2009-04-02 Zf Friedrichshafen Ag Verfahren und Vorrichtung zur Beölung der Axialanläufe von auf einer Welle angeordneten Losrädern

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005001839A1 (de) 2005-01-14 2006-07-20 Zf Friedrichshafen Ag Schmiervorrichtung für eine Welle-Nabe-Verbindung mit einem benachbarten schmieröldurchströmten Lager

Also Published As

Publication number Publication date
DE102009028383A1 (de) 2011-02-17
WO2011018320A3 (fr) 2011-04-21

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