WO2008080438A1 - Unité de roulement pour un joint tripode à durée de vie accrue - Google Patents

Unité de roulement pour un joint tripode à durée de vie accrue Download PDF

Info

Publication number
WO2008080438A1
WO2008080438A1 PCT/EP2007/000974 EP2007000974W WO2008080438A1 WO 2008080438 A1 WO2008080438 A1 WO 2008080438A1 EP 2007000974 W EP2007000974 W EP 2007000974W WO 2008080438 A1 WO2008080438 A1 WO 2008080438A1
Authority
WO
WIPO (PCT)
Prior art keywords
inner ring
roller unit
joint part
ring
outer ring
Prior art date
Application number
PCT/EP2007/000974
Other languages
German (de)
English (en)
Inventor
Wolfgang Manfred Beigang
Original Assignee
Gkn Driveline International Gmbh
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 Gkn Driveline International Gmbh filed Critical Gkn Driveline International Gmbh
Publication of WO2008080438A1 publication Critical patent/WO2008080438A1/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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
    • F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
    • F16D3/202—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints
    • F16D3/205—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints the pins extending radially outwardly from the coupling part
    • F16D3/2055—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints the pins extending radially outwardly from the coupling part having three pins, i.e. true tripod joints
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
    • F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
    • F16D3/202—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints
    • F16D2003/2026—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints with trunnion rings, i.e. with tripod joints having rollers supported by a ring on the trunnion

Definitions

  • the present invention relates to a roller unit for a tripod joint with an outer joint part and at least one spherical Tripodezapfen.
  • a tripod joint regularly has an outer joint part, which forms a, on the manner of a tulip or bell unilaterally accessible cavity in which three extended, uniformly distributed over the circumference, guideways are formed, each forming pairs in the circumferential direction of opposing web edges.
  • a so-called Tripodestern with a hub and with three radially extending, uniformly distributed over the circumference, Tripodezapfen positioned.
  • the tripode pins usually have a spherical or spherical connection, around which a respective roller unit is arranged with an annular inner ring.
  • needle-shaped, rolling bodies are arranged, which are rotatable and thus allow the rolling of an outer ring over which ultimately a torque is introduced into the outer joint part.
  • Tripod joints of the aforementioned type are manufactured and distributed by the applicant under the name AAR tripod joints for a long time. They are used in particular on side shafts of motor vehicles, which serve the drive connection between a differential gear and the drive wheels.
  • the so-called constant-velocity ball joints fixed on the wheel side and the AAR tripod joints specified here on the differential gear are usually used as sliding joints.
  • the AAR tripod joints are designed for bending angles of the order of 23 ° to 26 °. In line with the increasing share of off-road vehicles and SUV vehicles, larger operational deflection angles are achieved by axially displaceable double-offset gears (so-called DO shift joints) or by a combination of constant velocity ball joints and axial displacement units.
  • the rolling units of such a AAR regularly have an outer ring, a rim roller body, a symmetrical inner ring and two retaining rings against axial displacement of the individual components of the roller unit.
  • AAR angular adjusted roller
  • embodiments are also known in which an asymmetrically shaped inner ring is used with collar, so that the needle-shaped rolling bodies are held on one side by the collar and on the opposite side by means of a thrust washer and a retaining ring.
  • the object of the present invention is to at least partially solve the problems mentioned with reference to the prior art.
  • a roller unit for a tripod joint is to be created, which can be produced with low production costs and has a longer service life.
  • Such a roller unit has a roller axis and is intended for use in a tripod joint with an outer joint part and at least one spherical Tripodezapfen.
  • the roller unit has at least the following components: an inner ring for engagement with the at least one tripode pin, an outer ring for engagement with the outer joint part, - a plurality of rolling bodies, which are positioned between the inner ring and the outer ring.
  • At least the inner ring or the outer ring has at least one protrusion projecting obliquely to the roll unit axis, which can be brought into contact with a rolling body movably arranged parallel to the roll unit axis.
  • the outer joint part of such a tripod joint regularly has three (3) distributed over the circumference arranged guideways, in each of which a tripode pin of the inner joint part can be positioned.
  • the tripode pins are surrounded by a roller unit. This has such a structure that a force or torque is transmitted from the tripode pin on the inner ring and the rolling elements on the outer ring and ultimately on the outer joint part. Consequently, a frictional connection is given, so that a corresponding torque can be transmitted safely.
  • the roller unit has here essentially only three (3) component groups, namely an inner ring, an outer ring and the rolling elements.
  • the inner ring has a (substantially) cylindrical bore for abutment with the at least one tripode pin.
  • the outer ring is also made of several parts, for example, with a plurality of annular discs, the abut each other.
  • the rolling elements are in particular acicular or cylindrical running and positioned between the inner ring and the outer ring so that the inner ring and the outer ring abut the peripheral surface of the rolling bodies.
  • the inner ring and / or the outer ring has at least one obliquely or transversely or even (approximately) perpendicular to the Rollisersachse protruding projection.
  • the projection may be executed in the manner of a collar circumferentially closed over the circumference, but it is also possible that the projection is locally limited or more distributed over the circumference projections are provided.
  • the rolling bodies are in this case positioned so that they are movable substantially parallel to the roller unit axis, wherein this relative movement with respect to the inner ring and / or the outer ring is limited by contact with the at least one projection.
  • the projections form a kind of stop for this axial movement of the rolling elements.
  • this also means that the inner ring of the roller unit is freely movable relative to the outer ring parallel to the Roil unit axis and the rolling bodies are held in corresponding recesses in the outer ring with less freedom of axial displacement (similar, for example, as with commercially available needle roller bearings).
  • At least the inner ring or the outer ring of the roller unit has two projections spaced in the direction of the roller unit axis, wherein a spacing of the projections is greater than a length of the roller body.
  • a spacing of the projections is greater than a length of the roller body.
  • the inner ring and the outer ring have two projections spaced apart in the direction of the roller unit axis, wherein the distances between the projections of the inner ring and outer ring are different from one another.
  • the outer ring has two such projections, which are formed at a distance from each other, which corresponds substantially to the length of the rolling body or is only minimally larger and provides a normal bearing clearance.
  • the inner ring is preferably designed with two projections, as explained in the previous section.
  • At least the inner ring or the outer ring has at least one circumferential section, which is provided with elevations partially enclosing the roller bodies.
  • the elevations are essentially designed so that they approximate the shape or the circumference of the rolling bodies.
  • the elevations protrude (preferably only temporarily during the assembly of the rolling unit) in an intermediate region between at least two rolling bodies and / or are arranged in a parallel plane outside the rolling bodies. It is preferred that only the inner ring has such elevations, but it is also possible in principle that both the inner ring and the outer ring is designed accordingly.
  • a single surveys or a few surveys can be used to adjust a positioning between the rolling elements in the circumferential direction.
  • at least a part of the projections form the projection, so that the projection is designed with a large number of such elevations.
  • the width of the inner ring relative to the width of the outer ring is defined so that at maximum flexion angle of the joint between the inner ring and the inner part or the shoulder of the Tripodesterns in an extreme position and between the inner ring and the outer joint part or the shoulder the guideway in the outer joint part in the other extreme position only a small axial clearance remains. This ensures a gentle function of the tripod joint at the angle in the range of the maximum bending angle and avoids the rest of the game constraining forces between the rolling elements and the projections.
  • a tripod joint for a motor vehicle which has an outer joint part and an inner joint part, wherein the outer joint part and the inner joint part cooperate by means of at least one roller unit described herein according to the invention.
  • Particularly preferred application of the invention is a motor vehicle, so that in particular a motor vehicle is provided with at least one of the tripod joints described.
  • 1 the structure of a tripod joint
  • 2 shows a first embodiment of a rolling unit
  • FIG. 6 shows a plan view of an inner ring of a further embodiment of a rolling unit
  • Fig. 7 a detail of Fig. 6 as indicated there.
  • Fig. 1 illustrates a tripod joint 2, which is designed as part of an indicated motor vehicle 13.
  • Tripodegelenks 2 it is possible to transmit the rotational movement even in the presence of a Beugewinkels 24 of the shaft 20 and shaft axis 23 relative to the outer joint part axis 12.
  • an inner joint part 15 is fixed on the shaft 22, which has a plurality of Tripode- pin 17.
  • the spherically shaped Tripodezapfen 17 are each surrounded by a roller unit 1, which are mounted in correspondingly shaped guideways 16 of the outer joint part 14. This is also a taking place along the outer joint part axis 18 displacement movement (indicated by the double arrow) of the inner joint part 15 in the cavity 21 of the outer joint part 14 allows.
  • the roller unit 1 is designed with an inner ring 3, which rests with its cylindrical inner contour on the spherical surface of the rotary bottom pin 17. Radially outward on the inner ring 3, a plurality of rolling elements 5 is arranged, which also allow a rotational movement of the inner ring 3 relative to the outer ring.
  • the outer ring 4 is designed here with a first annular disc 18 and a second annular disc 19, the fluid passage 20 between them form. Thus, the grease located in the cavity 21 can also get to the rolling bodies 5.
  • FIG. 2 illustrates a partial cross-section of an embodiment variant of the rolling unit which is positioned in a guide track 16 of the outer joint part 14.
  • the roller unit 1 in this case represents the connection between the outer joint part 14 and the inner joint part 15 in the manner of a tripod with three Tripodezapfen 17. If a rotation of the shaft 22 are transmitted to rotate the inner joint part 15, the roller unit 1 and the outer joint part 14 to the outer joint part - axis 12.
  • an inner ring 3, a ring with a plurality of rolling elements 5 and an outer ring 4 embodied here in one piece are arranged concentrically to the roller unit axis 6.
  • the roller bodies 5 permit a rotation of the inner ring 3 relative to one another the outer ring 4.
  • both the outer ring 4 and the inner ring 3 are designed with two circumferentially formed projections 7, wherein the projections 7 are aligned opposite from the outer part 4 and inner part 3. It can be seen that these projections 7 (designed in the region of the axial end faces in the manner of a protruding edge) each form a receptacle or depression for the rolling bodies 5, that is, the rolling bodies 5 are positioned between these projections 7.
  • the roller unit 1 does without circlips.
  • the projections 7 also limit an axial mobility of the inner ring 3, wherein the local projections 7 are arranged in an advantageous manner so that the axial displacement is stopped shortly before contact with the outer joint part 14 and the inner joint part 15.
  • FIG. 3 again shows the different role of the projections 7 at different positions of the inner ring 3.
  • the outer ring 4 now has two circumferentially formed Has jumps 7, which are positioned at a distance 8 to each other, which corresponds substantially to the length 9 of the rolling body 5. This is essentially no axial displacement between the rolling body 5 and the outer ring 4 allows.
  • the front side projections 7 of the inner ring 3 are arranged at a distance 8 which is significantly greater than the length 9 of the rolling body 5.
  • the outer joint part 4 is shown with a different cross section, so that it can be seen that the outer shape of the outer ring 4 can be adapted to the raceway contour of the outer joint part 4.
  • FIG. 4 and 5 show a part of a roller unit 1, wherein the effect or shape of the projections 7 of the inner ring 3 and the outer ring 4 are illustrated.
  • the rolling elements 5 are able to be displaced axially relative to the inner ring 3.
  • opposing projections 7 are provided here, which serve as a stop for at least one roller 5 in such an axial movement , While a stop on the inner ring 3 is illustrated in FIG. 4, FIG. 5 shows that here the inner ring 3 has moved relative to the rolling body 5 held by means of projections 7 of the outer ring 4.
  • the projections 7 on the inner joint part 3 in this case have a Clearre- ckung 26 in the direction of a Rolleinsheitsradius 25 which does not exceed 0.1 mm, in particular less than 0.05 mm [millimeters] is.
  • a projection may basically, as indicated here in FIGS. 4 and 5 and realized in the outer ring 4, make up half of the diameter of the rolling body 5, but this is not necessary mandatory.
  • FIG. 6 shows a plan view of an inner ring 3 which, in the direction of the circumference 27, has a plurality of elevations 11 which together form a projection. To allow easy installation of the roller unit, the elevations 11 are designed so that they engage in the spaces between the distributed over the circumference 27 rolling body 5 and consequently only a small mounting force is required.
  • a detail VII is still included, which includes a peripheral portion 10, which is illustrated in Fig. 7.
  • Fig. 7 now shows the part of Fig. 6, wherein a survey 11 is formed as a spacer 28.
  • the spacer 28 has a width 30 which is greater than the width of all other elevations 11. This prevents that the rolling elements 5 during use of the roller unit 1 align so that the projections 11 formed with the projection can be easily overcome again ,

Landscapes

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

Abstract

L'invention concerne une unité de roulement (1) présentant un axe d'unité de roulement (6) et destinée à un joint tripode (2) comprenant un élément extérieur de joint (14) et au moins un tourillon de tripode sphérique (17). L'unité de roulement selon l'invention comprend au moins une bague intérieure (3) s'appuyant sur le tourillon de tripode (17), une bague extérieure (4) s'appuyant sur l'élément extérieur de joint (14), ainsi qu'une pluralité de corps roulants (5) placés entre la bague intérieure (3) et la bague extérieure (4). Selon l'invention, au moins la bague intérieure (3) ou la bague extérieure (4) présente au moins une partie en saillie (7) qui fait saillie obliquement vers l'axe (6) de l'unité de roulement et qui peut être mise en contact avec un corps roulant (5) déplaçable parallèlement à l'axe (6) de l'unité de roulement.
PCT/EP2007/000974 2006-12-29 2007-02-06 Unité de roulement pour un joint tripode à durée de vie accrue WO2008080438A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006062557 2006-12-29
DE102006062557.9 2006-12-29

Publications (1)

Publication Number Publication Date
WO2008080438A1 true WO2008080438A1 (fr) 2008-07-10

Family

ID=38335738

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/000974 WO2008080438A1 (fr) 2006-12-29 2007-02-06 Unité de roulement pour un joint tripode à durée de vie accrue

Country Status (1)

Country Link
WO (1) WO2008080438A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120157215A1 (en) * 2010-12-21 2012-06-21 Jeong Hyun Cho High joint angle tripod constant velocity joint
WO2018065006A1 (fr) * 2016-10-06 2018-04-12 Schaeffler Technologies AG & Co. KG Galet tripode pour un joint homocinétique avec zone de sécurité, joint homocinétique avec le galet tripode et procédé de montage du galet tripode

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19834513A1 (de) * 1998-07-31 2000-02-03 Schaeffler Waelzlager Ohg Tripode-Gleichlaufdrehgelenk
EP1219845A2 (fr) * 2000-12-21 2002-07-03 Delphi Technologies, Inc. Joint homocinétique en tripode avec module à billes
EP1413787A2 (fr) * 2002-10-25 2004-04-28 Ntn Corporation Joint tripode homocinétique
EP1624208A1 (fr) * 2004-08-03 2006-02-08 Ntn Corporation Joint tripode universel homocinétique

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19834513A1 (de) * 1998-07-31 2000-02-03 Schaeffler Waelzlager Ohg Tripode-Gleichlaufdrehgelenk
EP1219845A2 (fr) * 2000-12-21 2002-07-03 Delphi Technologies, Inc. Joint homocinétique en tripode avec module à billes
EP1413787A2 (fr) * 2002-10-25 2004-04-28 Ntn Corporation Joint tripode homocinétique
EP1624208A1 (fr) * 2004-08-03 2006-02-08 Ntn Corporation Joint tripode universel homocinétique

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120157215A1 (en) * 2010-12-21 2012-06-21 Jeong Hyun Cho High joint angle tripod constant velocity joint
CN102537101A (zh) * 2010-12-21 2012-07-04 现代威亚株式会社 大万向节夹角的三叉式等速万向节
EP2469112A3 (fr) * 2010-12-21 2013-09-04 Hyundai Wia Corporation Joint à vitesse constante de type tripode à grand angle de jointoiement
WO2018065006A1 (fr) * 2016-10-06 2018-04-12 Schaeffler Technologies AG & Co. KG Galet tripode pour un joint homocinétique avec zone de sécurité, joint homocinétique avec le galet tripode et procédé de montage du galet tripode
CN109790872A (zh) * 2016-10-06 2019-05-21 舍弗勒技术股份两合公司 用于等速万向节的具有固定区域的三销式轴承、具有三销式轴承的等速万向节和用于安装三销式轴承的方法
CN109790872B (zh) * 2016-10-06 2022-03-11 舍弗勒技术股份两合公司 三销式轴承、等速万向节和用于安装三销式轴承的方法

Similar Documents

Publication Publication Date Title
DE19708293B4 (de) Fahrzeuggetriebe
EP2239475B1 (fr) Articulation à voies opposées
WO2007039259A1 (fr) Dispositif d'articulation
EP2391832B1 (fr) Joint homocinétique à propriétés de montage améliorées
WO2008080439A1 (fr) Unité de roulement pour un joint tripode
WO2008080438A1 (fr) Unité de roulement pour un joint tripode à durée de vie accrue
DE19915417A1 (de) Tripodegelenk mit elastischen Mitteln
EP1685332A1 (fr) Joint a billes a pistes croisees, pourvu de pistes de roulement obliques
DE102009017181B4 (de) Gleichlaufgelenk
DE3613641C2 (fr)
WO2017067547A1 (fr) Palier de débrayage
DE102017210135B4 (de) Kugelkäfig für VL- und CG-Gelenke
EP2391833B1 (fr) Joint homocinétique à propriétés de montage améliorée
DE102016201776B4 (de) Laufrolle für ein Podegelenk
WO2008128515A1 (fr) Ensemble palier d'un moyeu de roue d'un véhicule à moteur, pouvant être entraîné par le biais d'une articulation tournante, et procédé de fabrication dudit ensemble
DE102007059379B4 (de) Kugelverschiebegelenk
DE102006046595A1 (de) Gelenkanordnung
DE102008030116A1 (de) Tripodegelenk mit Führungsschiene
DE102021109177A1 (de) Kupplungsausrücklager
DE202021003951U1 (de) Kupplungsanordnung
DE8210013U1 (de) Wellenverbindung
DE102008030117A1 (de) Tripodegelenk mit separaten Einlegeschienen
DE102016201775A1 (de) Laufrolle für ein Podegelenk
EP1888929A2 (fr) Partie interieure de joint articule rotatif homocinetique
DE102008030151A1 (de) Tripodegelenk für ein Kraftfahrzeug und Verfahren zu dessen Herstellung

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: 07711442

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 07711442

Country of ref document: EP

Kind code of ref document: A1