WO2009156514A1 - Joint tripode pour véhicule automobile et son procédé de fabrication - Google Patents

Joint tripode pour véhicule automobile et son procédé de fabrication Download PDF

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Publication number
WO2009156514A1
WO2009156514A1 PCT/EP2009/058072 EP2009058072W WO2009156514A1 WO 2009156514 A1 WO2009156514 A1 WO 2009156514A1 EP 2009058072 W EP2009058072 W EP 2009058072W WO 2009156514 A1 WO2009156514 A1 WO 2009156514A1
Authority
WO
WIPO (PCT)
Prior art keywords
joint
tripod
rail
rolling bearing
guide element
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/EP2009/058072
Other languages
German (de)
English (en)
Inventor
Luis Hoeks
Jessica Andresen
Christian Felchner
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.)
Tedrive Holding BV
Original Assignee
Tedrive Holding BV
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 Tedrive Holding BV filed Critical Tedrive Holding BV
Publication of WO2009156514A1 publication Critical patent/WO2009156514A1/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
    • 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 is a tripod joint for a motor vehicle according to the preamble of claim 1 and a method for its preparation according to the preamble of the claim.
  • Automotive tripod joints have long been known in the art, and are particularly used as inner joints for the drive shafts of front wheel drive motor vehicles. They have excellent synchronous characteristics and can be angled up to angles of typically over 10 °. In addition, tripod joints can be advantageously used for propshafts rear-wheel drive or four-wheel drive motor vehicles.
  • Tripod joints typically have a tripod star forming a plurality of pins, each pin carrying a rolling bearing.
  • a tripod joint comprises an outer joint, which is often referred to as a "tulip", wherein the outer joint has a plurality of in the axial direction (ie in the direction of rotation of the outer joint) extending LaufbahnausappelInstitut.
  • a bearing supported by a pin roller bearing in the axial direction is displaceable
  • Each raceway recess forms two oppositely arranged raceways for mechanical contact with the rolling bearing guided therein.
  • Tripodegelenken is a relatively complex configuration of the bearings together, which brings cost disadvantages.
  • Object of the present invention is therefore to provide a tripod joint with advantageous operating characteristics, in particular with minimal rotational clearance, which has a simplified structure. Furthermore, a method for producing an advantageous tripod joint is to be specified.
  • An inventive tripod joint is provided for the drive train of a motor vehicle.
  • it is suitable for use as an inner joint of a drive shaft of a front wheel drive motor vehicle.
  • It includes a tripod star, which forms a plurality of cones.
  • Each of the pins carries a rolling bearing.
  • the tripod joint further comprises an outer joint, which has a plurality of in the axial direction (ie in the direction of rotation of the outer joint of the tripod joint) extending raceway recesses.
  • a supported by a pin bearing is mounted displaceably in the axial direction.
  • two oppositely arranged raceways for mechanical contact with the rolling bearing guided therein are formed in each raceway recess.
  • the rolling bearings each have an outer ring, in whose outer peripheral surface at least one, but preferably two circumferential annular grooves are formed.
  • the outer ring is advantageously formed in one piece, but may also be designed in several parts, in particular in two parts.
  • a rail-like guide element is to be understood as a structure which extends in the direction of the axis of rotation D of the outer joint and rises from a track. It may, for example, rise substantially in the circumferential direction of the outer joint of the raceway.
  • the rail-like guide element should form at least one guide surface on which the outer ring of a roller bearing can roll.
  • the rail-like guide element preferably forms two guide surfaces, which are arranged on sides of the guide element facing away from one another.
  • the annular groove in the outer ring of the rolling bearing and the rail-like guide element in the raceways should be designed so that at a power transfer from the outer joint on the tripod of the outer ring of the roller bearings on each / the rail-like guide / s - in particular / the guide surfaces formed by this rolls.
  • This is intended to ensure that a mechanical contact between roller bearing outer ring and raceway recess forms essentially only in the region of a raceway when the load transfer is effected via the tripod joint according to the invention.
  • a mechanical contact of the roller bearing outer ring in the region of the second, oppositely arranged track should be avoided as far as possible due to the special shape of the outer ring outer circumferential surfaces and the rail-like guide elements. In this way, particularly advantageous rolling properties of the roller bearings in the raceway recesses and thus particularly good synchronous running properties of the tripod joint according to the invention can be realized.
  • At least one of the rail-like guide elements at least in sections a nikbogenförmi- on cross-section.
  • the radius of curvature of the arcuate portion of the rail-like guide element is preferably smaller than that of the associated annular groove in the outer ring of the rolling bearing.
  • the Hertzian contact voltages are minimized.
  • annular groove in the outer peripheral surface of the roller bearing outer ring, in which engages the aforementioned rail-like guide element at least partially has a Gothic cross-section.
  • This is understood to mean two mutually inclined spherical surface sections which enclose an angle ⁇ with each other.
  • the combination of annular groove with at least partially Gothic cross section and rail-like guide element with at least partially circular arc-shaped cross-section ensures that always form two defined point contacts P between rail-like guide element and annular groove.
  • At least one rail-like guide element is formed integrally with the tulip, it can be formed for example in the manufacture of the outer joint with in the material of the outer joint.
  • the final formation of the rail-like guide element can be carried out in the context of the finishing of the raceways in the outer joint.
  • the rail-like guide element is designed as a separate component.
  • it may consist of a different material than the outer joint of the tripod joint.
  • the rail-like guide element may consist of an extruded tool steel or a hardened round steel.
  • the outer joint is typically cast or forged steel.
  • the separately formed rail-like guide element is advantageously fixed mechanically to the tulip at at least one point, but preferably at several points.
  • the mechanical connection between the rail-like guide element and the outer joint can be achieved, for example, by means of welding (for example by welding). Spot welding), caulking, soldering, gluing or other suitable joining methods known from the prior art.
  • the pins of the tripod star or the inner rings of the rolling bearing have.
  • the pins of the tripod star are formed spherical, which is to be understood in that the pins are at least partially form spherical surfaces.
  • the complementary surfaces in the inner ring of the rolling bearing can be configured, for example, cylindrical, so that the rolling bearing has an inner ring with a cylindrical inner recess.
  • the inner rings can perform a tilting movement on the pin of the Tripodesterns.
  • the inner ring and the outer ring of the rolling bearing in the direction of the axis of rotation of the bearing are mutually displaceable.
  • Such a degree of freedom of movement is not required if the inner ring of the roller bearing has a cylindrical inner recess, since here the spherical pin of the tripod stator can slide back and forth in the inner recess of the roller bearing inner ring.
  • An inventive method for producing a tripod joint for a motor vehicle comprises the following method steps: 1. Provision of a. a tripod star forming a plurality of pins, b. a plurality of roller bearings, each having an outer ring, in the outer peripheral surface of which at least one circumferential annular groove is formed, c. an outer joint having a plurality of axially extending raceway recesses, in each of which a rolling bearing supported by a pin can be slidably supported in the axial direction, wherein in each Laufbahnaus- recess formed two oppositely arranged raceways for mechanical contact with the roller bearing guided therein and at least one rail-like is formed, which engages in the annular groove formed on the outer ring,
  • the method according to the invention has the following additional method steps:
  • FIG. 1 is a perspective view of a first embodiment of a tripod joint according to the invention
  • FIG. 3 shows an enlarged partial sectional view through the outer joint, roller bearings and tripod testers of the exemplary embodiment according to FIG. 1.
  • FIG. 1 A first figure.
  • FIG. 5 is a perspective view of the outer joint of a tripod joint according to a second embodiment with a rolling bearing used
  • FIG. 7 shows the view from FIG. 4 for a third exemplary embodiment of a tripod joint according to the invention
  • 8 is an enlarged partial view of Figure 7 in a first embodiment
  • FIG. 9 shows an enlarged partial view from FIG. 7 in a second embodiment.
  • FIG. 1 shows a schematic representation of a first embodiment of a tripod joint 1 according to the invention in a perspective view.
  • the outer joint 20 has a rotation axis D and is open on one side. At its closed end, the outer joint 20 opens into a shaft shank 28 for connection to, for example, an output shaft of a transmission of the motor vehicle.
  • three Laufbahnaus Principle für Melman 22 are formed, which extend in the direction of the axis of rotation D.
  • Each raceway recess 22 forms two raceways 24 arranged opposite one another, on which roller bearings 60 inserted into the raceway recess 22 unroll, of which only one is shown in FIG. 1 for reasons of clarity.
  • the dimensioning of the bearings 60 is selected so that when a force is introduced, for example, in the outer joint 20 of the tripod joint 1, the roller bearing 60 actually rolls with its outer ring 64 only on a raceway 24 of the raceway recess 22.
  • each raceway recess 22 in the outer joint 20 is assigned a pin 42 of the tripod stator 40 inserted into the outer joint 20.
  • the pins 42 each carry a rolling bearing 60.
  • the tripod star 40 has an inner recess, in the inner wall of a plurality of splines 44 are formed for connecting a connecting shaft, for example, a ball displacement joint.
  • the outer joint 20 and shaft shaft 28 are integrally formed as a forged part, wherein the formed in the Laufbahnaus Principle für 22 raceways 24 are subjected to the forging of the outer joint 20 further processing steps for finishing and curing.
  • FIG. 2 shows the first exemplary embodiment of a tripod joint 1 according to the invention according to FIG. 1 once more in a partially sectioned view from which the structure of the roller bearing 60, in particular of its outer ring 64, and the shape of the raceway 24 of the raceway recess 22 in the outer joint 20 can be seen.
  • the supported by the pins 42 of the tripod stator 40 bearings 60 have an inner ring 62 and an outer ring 64, between which a plurality of cylindrical rollers 68 is arranged.
  • Inner ring 62 and outer ring 64 are displaceable relative to each other in the direction of the axis of rotation R of the rolling bearing 60.
  • the outer ring 64 of the rolling bearing 60 is provided with a circumferential annular groove 66.
  • a rail-like guide member 26 which is formed in each case on the raceway 24 of the raceway recess 22.
  • this rail-like guide member 26 may be integrally formed with the outer joint 20, but it may also be formed as a separate component, for example in the form of an insert which each inserted into a trained in the raceway 24 of the Laufbahnaus Principleung 22 receiving recess 25 and preferably mechanically fixed there
  • the rail-like guide element 26 is formed integrally with the forged outer joint 20.
  • the pins 42 of the tripod star 40 have spherical surface sections 43.
  • the inner recess 62 of the inner ring 62 is formed partially spherical, so that the pin 42 supported by the inner ring 62 of the rolling bearing 60 and thus this total can perform a tilting movement about the pin 42.
  • All three contact points P lie on the rail-like guide element 26 and have the same distance from the axis of rotation R of the rolling bearing 60, so that a pure rolling movement of the rolling bearing 60 on the track 24 is possible.
  • a partial sliding movement of the outer ring 64 which could adversely affect the running properties of the tripod joint 1 according to the invention, is characterized avoided.
  • the realized in the first embodiment of the invention Tripode joint 1 three contact points P of the rolling bearing outer ring 64 with the raceway 24 also provide a position stabilization of the rolling bearing outer ring 64 in the track 24, for example, at a load transfer to the invention Tripodege- steering 1, ie a tilting of the axis of rotation R. the rolling bearing 60 is thereby avoided.
  • FIG. 3 furthermore shows the special shape of the roller bearing 60 and the pin 42 of the tripod star 40.
  • the spherical surface portion 43 of the pin 42 of the tripod star 40 can be seen.
  • the spherical inner recess 63 in the inner ring 62 of the rolling bearing 60 corresponds, so that a total of a tilting movement of the axis of rotation of the rolling bearing 60 on the pin 42 is possible.
  • the outer circumference of the roller bearing inner ring 62 and the inner circumference of the roller bearing outer ring 64 are each configured as a cylindrical surface, so that between the inner ring 62 and outer ring 64 cylindrical rollers 68 can roll.
  • the rollers 68 are fixed in the direction of the axis of rotation R of the rolling bearing 60 in the inner ring 62 in position.
  • the position of the outer ring 64 on the rollers 68 is limited essentially only by a securing projection 65 which is formed at the inner end of the roller bearing outer ring 64.
  • the roller bearing outer ring 64 is displaceable in the direction of the axis of rotation R of the rolling bearing 60 against the inner ring 62.
  • the securing projection 65 limits the displacement movement of the outer ring 64 on the inner ring 62 and thus prevents falling apart of the supported by the pin 42 rolling bearing 60, for example, in the final assembly of the tripod joint 1 of the invention.
  • Figure 4 shows again the structure of the outer joint 20, the tripod star 40 and the rolling bearing 60 of the tripod joint 1 according to the invention according to the first embodiment in a perspective view.
  • Figure 5 shows the outer joint 20 of a second embodiment of a tripod joint 1 according to the invention also in a perspective view, which was omitted for the sake of clarity, the Trip odestern 40 again in detail.
  • the structure of the tripod stator 40 and the rolling bearings 60 substantially corresponds to that according to the first embodiment.
  • the second exemplary embodiment differs from the first exemplary embodiment essentially in that two circumferential annular grooves 66 are formed on the outer circumferential surface of the roller bearing outer ring 64.
  • rail-like guide elements 26 are designed as separate components of the outer joint 20. These are placed in complementary, in the direction of rotation D of the outer joint 20 extending receiving recesses 25 in the raceway 24 and mechanically fixed there, for example by means of one or more welds.
  • the rail-like guide elements 26 may consist, for example, of hardened round steel.
  • the rail-like guide elements 26 each partially have a circular arc-shaped cross section.
  • the circumferential annular grooves 66 formed in the roller bearing outer ring 64 have, in sections, a circular arc-shaped cross section.
  • the radius of curvature of the arcuate portion of the rail-like guide element 26 is at most the same size as the radius of curvature of the circumferential annular groove 66 in the roller bearing outer ring 64, preferably but smaller than its radius of curvature.
  • the latter embodiment is shown in Fig. 8 as an enlarged view of Figure 7. This results in a minimized Hertzian contact voltage at the contact points P between the rail-like guide element 26 and the annular groove 66.
  • two contact points P are formed in the region of each circumferential annular groove 66, each with one rail-like element engaging in the annular groove 66 Guide member 26, so that a total of four between the rolling bearing outer ring 64 and the raceway 24 of the outer joint 20 four contact points P occur.
  • these contact points P are preferably again on a straight line which is oriented parallel to the axis of rotation R of the rolling bearing 60.
  • the structure of the tripod joint 1 essentially corresponds to that shown in FIGS. 5 and 7.
  • the rail-like guide elements 26 designed as separate components have, in sections, a circular-arc-shaped cross-section.
  • the peripheral annular grooves 66 formed in the outer ring 64 of the roller bearing 60 do not have a sectionally circular-arc-shaped cross-section, but rather a Gothic shape is selected here for the annular grooves.
  • this is to be understood as two mutually inclined spherical surface sections, which enclose with one another an angle ⁇ which lies between 45 ° and 170 °, preferably between 90 ° and 150 °.

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

Abstract

L'invention concerne un joint tripode pour un véhicule automobile, ce joint tripode présentant des caractéristiques de roulement améliorées. Ledit joint tripode comprend un tripode (40) qui forme une pluralité de tourillons (42). Les tourillons (42) du tripode (40) supportent une pluralité de paliers à roulement (60). Il est prévu en outre une articulation externe (20) présentant une pluralité de cavités de chemins de roulement (22) qui s'étendent dans le sens axial et dans chacune desquelles est logé un palier à roulement (60), supporté par un tourillon (42), de manière à pouvoir coulisser dans le sens axial. Deux chemins de roulement (24) disposés en vis-à-vis l'un de l'autre sont formés dans chaque cavité de chemins de roulement (22) de façon à établir un contact mécanique avec le palier à roulement (60) guidé dans ladite cavité. L'invention concerne en outre un procédé de fabrication d'un joint tripode présentant des caractéristiques de roulement améliorées.
PCT/EP2009/058072 2008-06-27 2009-06-26 Joint tripode pour véhicule automobile et son procédé de fabrication Ceased WO2009156514A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008030116.7 2008-06-27
DE102008030116A DE102008030116A1 (de) 2008-06-27 2008-06-27 Tripodegelenk mit Führungsschiene

Publications (1)

Publication Number Publication Date
WO2009156514A1 true WO2009156514A1 (fr) 2009-12-30

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ID=40996502

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/058072 Ceased WO2009156514A1 (fr) 2008-06-27 2009-06-26 Joint tripode pour véhicule automobile et son procédé de fabrication

Country Status (2)

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DE (1) DE102008030116A1 (fr)
WO (1) WO2009156514A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111779771A (zh) * 2019-04-03 2020-10-16 上海纳铁福传动系统有限公司 可调角度的三枢轴式万向节

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112589548B (zh) * 2020-12-09 2022-01-28 马鞍山市恒永利机械科技有限公司 一种三销轴式万向节的加工系统

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4192154A (en) * 1976-10-27 1980-03-11 Hitachi Construction Machinery Co., Ltd. Constant velocity universal joint
WO1992014071A1 (fr) * 1991-02-12 1992-08-20 Gkn Automotive Inc. Joint de cardan homocinetique a trepied pourvu de rouleaux a elements multiples
EP0552801A1 (fr) * 1992-01-24 1993-07-28 J.M. Voith GmbH Accouplement à rouleaux
DE4228503A1 (de) * 1992-07-14 1994-01-20 Loehr & Bromkamp Gmbh Gleichlaufdrehgelenk
DE4407346A1 (de) * 1993-09-07 1995-06-29 Gkn Automotive Ag Verfahren zur Herstellung eines Gelenkaußenteils und nach dem Verfahren hergestelltes Gelenkaußenteil
FR2819863A1 (fr) * 2001-01-23 2002-07-26 Gkn Glaenzer Spicer Joint de transmission homocinetique et organe de transmission mecanique pour un tel joint
DE10220836A1 (de) * 2002-05-08 2004-04-15 Girguis, Sobhy Labib, Dipl.-Ing. Gleichlaufschiebegelenk
DE112004002573T5 (de) * 2003-12-29 2007-02-08 Gkn Driveline S.A. Homokinetisches Antriebsgelenk

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4130183C2 (de) 1991-09-11 1994-01-20 Gkn Automotive Ag Tripodegelenk
JP4015822B2 (ja) 2001-04-25 2007-11-28 Ｎｔｎ株式会社 等速自在継手

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4192154A (en) * 1976-10-27 1980-03-11 Hitachi Construction Machinery Co., Ltd. Constant velocity universal joint
WO1992014071A1 (fr) * 1991-02-12 1992-08-20 Gkn Automotive Inc. Joint de cardan homocinetique a trepied pourvu de rouleaux a elements multiples
EP0552801A1 (fr) * 1992-01-24 1993-07-28 J.M. Voith GmbH Accouplement à rouleaux
DE4228503A1 (de) * 1992-07-14 1994-01-20 Loehr & Bromkamp Gmbh Gleichlaufdrehgelenk
DE4407346A1 (de) * 1993-09-07 1995-06-29 Gkn Automotive Ag Verfahren zur Herstellung eines Gelenkaußenteils und nach dem Verfahren hergestelltes Gelenkaußenteil
FR2819863A1 (fr) * 2001-01-23 2002-07-26 Gkn Glaenzer Spicer Joint de transmission homocinetique et organe de transmission mecanique pour un tel joint
DE10220836A1 (de) * 2002-05-08 2004-04-15 Girguis, Sobhy Labib, Dipl.-Ing. Gleichlaufschiebegelenk
DE112004002573T5 (de) * 2003-12-29 2007-02-08 Gkn Driveline S.A. Homokinetisches Antriebsgelenk

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111779771A (zh) * 2019-04-03 2020-10-16 上海纳铁福传动系统有限公司 可调角度的三枢轴式万向节
CN111779771B (zh) * 2019-04-03 2021-12-03 上海纳铁福传动系统有限公司 可调角度的三枢轴式万向节

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