WO1998009089A1 - Tripod universal transmission joint and methods for mounting same - Google Patents
Tripod universal transmission joint and methods for mounting same Download PDFInfo
- Publication number
- WO1998009089A1 WO1998009089A1 PCT/FR1997/001440 FR9701440W WO9809089A1 WO 1998009089 A1 WO1998009089 A1 WO 1998009089A1 FR 9701440 W FR9701440 W FR 9701440W WO 9809089 A1 WO9809089 A1 WO 9809089A1
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- WO
- WIPO (PCT)
- Prior art keywords
- diameter
- rings
- arms
- tripod
- transmission joint
- Prior art date
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims description 8
- 238000005096 rolling process Methods 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Classifications
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- 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
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- 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 sliding constant velocity transmission joint of the tripod type, mounted in particular on the wheel shafts of a front of a motor vehicle, for transmitting the movement between the differential of the transmission and the wheels, allowing to the latter to turn.
- a tripod transmission joint consisting of an external element having three internal guide rails and an internal element provided with three guide arms, each of which supports a roller in a rail of the external element, by means of a ring allowing the tripod to tilt relative to the external element, without modifying the orientation of the rollers in the guide rails.
- this publication proposes as a variant to give the arms and the inner surface of the rollers a cylindrical shape, each roller being in this case mounted on its arm by means of a ring in two parts, of which the spherical surfaces opposite face a bearing of needles facilitating the rotation of the rollers on the arms.
- the present invention aims to improve the mechanical behavior of a tripod transmission joint, while simplifying the mounting thereof.
- a tripod transmission joint consisting of an external element having three internal guide rails and an internal element provided with three guide arms supporting rollers in the rails of the external element by means of rings. allowing the tripod to tilt relative to the external element without modifying the orientation of the rollers in the guide rails.
- This joint is characterized in that the end of the arms has an external toric surface and in that the rings have a spherical internal shape allowing them to tilt on the arms in the longitudinal direction of the joint, while being retained axially on these latter.
- each arm of the tripod has two lateral flats perpendicular to its axis.
- the inlet diameter of each ring is however less than its spherical inside diameter.
- this inlet diameter is greater than or equal to the projection thereon, of the outside diameter - ⁇ ht-tere, when it is introduced into the ring.
- the outside diameter of the torus or its projection onto the inlet diameter of each ring can be greater than this.
- FIG. 1 is a cross section of a transmission joint according to the invention
- FIG. 2 is a section along A- A of FIG. 1,
- FIG. 3A is a cross section of the tripod of FIGS. 1 and 2, in the assembly position of the ring and the roller on one of its arms,
- FIG. 3B is a partial enlargement of FIG. 3A
- FIG. 3C is a top view along the arrow V
- FIG. 4 is a section on B-B in FIG. 3A,
- FIG. 5 is a cross section of the tripod of FIGS. 1 and 2 after the ring and the roller have been assembled on one of its arms,
- FIG. 6 is a section along C-C in FIG. 5, and
- the constant velocity joint shown in the figures comprises an external element 1, in which three internal axial guide ramps 2 are arranged, having a flat bottom 3 comprised between two raceways 4 of O-section, and an internal element, or tripod 6, provided with three arms 7 supporting rollers 8 in the guide rails 2, by means of rings 9 allowing the tripod 6 to tilt relative to the element outside 1 and arms 7 to tilt inside the rings 9 in the longitudinal direction of the joint in a turning situation, without modifying the orientation of the rollers 8 in the guide ramps 2.
- the rollers 8 have an external toric surface 11, facilitating their rolling in the ramps 2 of the external element 1, and a cylindrical internal surface 12, resting on the rings 9, whose external surface 9a is also cylindrical, via a bearing of needles 13, facilitating the relative rotation of these two elements.
- the arms 7 of the tripod 6 have a toric shape, while the rings 9 have a spherical internal surface 9b. Thanks to this arrangement, the arms 7 can tilt relative to the rings 9 in the longitudinal direction of the joint, while being held axially in the latter. Furthermore, each ring 9 moves axially inside its roller 8, as a function of the inclination of the arm 7 with respect to the latter. More specifically, the rings 9 have the possibility of sliding towards the end of the rollers 8 in response to the inclination of the arms 7 in the rollers 8, imposed by the changes in orientation of the tripod 6 in the external element 1, so as not to limit the joint's turning angle.
- the arms 7 of the tripod 6 therefore tilt relative to a plane perpendicular to the longitudinal axis of the external element 1, while the rollers 8 roll inside the guide rails 2, without change orientation with respect to the raceways 4, and that the rings 9 are offset towards the end of the rollers 8, any risk of the rollers 8 tilting inside the ramps 2 being eliminated due to their permanent support against the bottom 3 of the ramps 2, under the thrust of the rings 9 and of the arms 7.
- each ring 9 After its installation each ring 9 is straightened relative to its arm 7, so that it can rotate freely around the latter, while being held axially. Since once mounted in the external element, the tripod 6 is immobilized in rotation about its axis z by the three guide ramps 2 of the rollers 8, it is understood that the return of the rings 9 in an inclined position p. ar relative to the arms, as illustrated by FIG. 3 A, which would possibly allow the rings 9 to disengage from the arms 7, is impossible after the joint has been assembled.
- the complete assembly of the seal proposed by the invention can be carried out by mounting, according to the known technique, the rollers 8 on the rings 9 and the needles 13, before fitting each ring-needle-roller assembly on an arm 7 , in accordance with the operation described above, and to mount the tripod-roller-needle-ring assembly in the external element 1 of the seal.
- the fitting of the rings 9 onto the arms 7 can also be achieved by force, without however exceeding the limit of elastic deformation of the rings 9.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The universal transmission joint consists of an external element (1) with three internal guide vanes (2) and one internal element (6) provided with three guide arms (7) supporting rollers (8) in the vanes (2) of the external element (1) by means of rings (9) enabling the tripod (6) to be inclined with respect to the external element (1) without modifying the orientation of the rollers (8) inside the guide vanes (2). The invention is characterised in that the end of the arms (7) has a toric external surface and in that the rings (9) have an internal spherical surface enabling them to be inclined on the arms (7) in the longitudinal direction of the joint, while they are axially maintained on the arms.
Description
JOINT DE TRANSMISSION TRIPODE ET PROCEDES DE MONTAGE D'UN TEL JOINT DE TRANSMISSION TRIPOD TRANSMISSION JOINT AND METHODS OF MOUNTING SUCH A TRANSMISSION JOINT
La présente invention se rapporte à un joint de transmission coulissant homocinétique du type tripode, monté notamment sur les arbres de roues d'un tr.ain avant de véhicule automobile, pour transmettre le mouvement entre le différentiel de la transmission et les roues, en permettant à ces dernières de braquer.The present invention relates to a sliding constant velocity transmission joint of the tripod type, mounted in particular on the wheel shafts of a front of a motor vehicle, for transmitting the movement between the differential of the transmission and the wheels, allowing to the latter to turn.
Plus précisément, elle a pour objet un joint de transmission tripode constitué d'un élément extérieur présentant trois rampes intérieures de guidage et d'un élément intérieur muni de trois bras de guidage, dont chacun supporte un galet de roulement dans une rampe de l'élément extérieur, par l'intermédiaire d'une bague permettant au tripode de s'incliner par rapport à l'élément extérieur, sans modifier l'orientation des galets dans les rampes de guidage.More specifically, it relates to a tripod transmission joint consisting of an external element having three internal guide rails and an internal element provided with three guide arms, each of which supports a roller in a rail of the external element, by means of a ring allowing the tripod to tilt relative to the external element, without modifying the orientation of the rollers in the guide rails.
Par la publication FR 2.422.064, on connaît un joint homocinétique tripode à bagues intermédiaires, dont chaque bras présente une forme sphérique, et chaque galet présente une surface interne cylindrique, tandis que les bagues intermédiaires disposent d'une surface interne sphérique et d'une surface externe cylindrique.By publication FR 2,422,064, a tripod constant velocity joint with intermediate rings is known, each arm of which has a spherical shape, and each roller has a cylindrical internal surface, while the intermediate rings have a spherical internal surface and a cylindrical outer surface.
Pour faciliter les mouvements des galets autour de chaque bras, cette publication propose en variante de donner aux bras et à la surface interne des galets une forme cylindrique, chaque galet étant dans ce cas monté sur son bras par l'intermédiaire d'une bague en deux parties, dont les surfaces sphériques en vis-à-vis retiennent une portée d'aiguilles facilitant la rotation des galets sur les bras. Il en résulte cependant une augmentation des surfaces de contact au sein du joint, se traduisant par des frottements particulièrement importants.
La présente invention vise à améliorer le comportement mécanique d'un joint de transmission tripode, tout en simplifiant le montage de celui-ci.To facilitate the movements of the rollers around each arm, this publication proposes as a variant to give the arms and the inner surface of the rollers a cylindrical shape, each roller being in this case mounted on its arm by means of a ring in two parts, of which the spherical surfaces opposite face a bearing of needles facilitating the rotation of the rollers on the arms. However, this results in an increase in the contact surfaces within the seal, resulting in particularly high friction. The present invention aims to improve the mechanical behavior of a tripod transmission joint, while simplifying the mounting thereof.
Elle concerne un joint de transmission tripode constitué d'un élément extérieur présentant trois rampes intérieures de guidage et d'un élément intérieur muni de trois bras de guidage supportant des galets de roulement dans les rampes de l'élément extérieur par l'intermédiaire de bagues permettant au tripode de s'incliner par rapport à l'élément extérieur sans modifier l'orientation des galets dans les rampes de guidage. Ce joint est caractérisé en ce que l'extrémité des bras a une surface extérieure torique et en ce que les bagues ont une forme intérieure sphérique leur permettant de s'incliner sur les bras dans la direction longitudinale du joint, tout en étant retenues axialement sur ces derniers.It relates to a tripod transmission joint consisting of an external element having three internal guide rails and an internal element provided with three guide arms supporting rollers in the rails of the external element by means of rings. allowing the tripod to tilt relative to the external element without modifying the orientation of the rollers in the guide rails. This joint is characterized in that the end of the arms has an external toric surface and in that the rings have a spherical internal shape allowing them to tilt on the arms in the longitudinal direction of the joint, while being retained axially on these latter.
De préférence, chaque bras du tripode présente deux méplats latéraux perpendiculaires à son axe.Preferably, each arm of the tripod has two lateral flats perpendicular to its axis.
Conformément à l'invention, le diamètre d'entrée de chaque bague est cependant inférieur à son diamètre intérieur sphérique.According to the invention, the inlet diameter of each ring is however less than its spherical inside diameter.
Selon un premier mode de réalisation, ce diamètre d'entrée est supérieur ou égal à la projection sur celui-ci, du diamètre extérieur -τht-tere, lors de son introduction dans la bague.According to a first embodiment, this inlet diameter is greater than or equal to the projection thereon, of the outside diameter -τht-tere, when it is introduced into the ring.
En variante, le diamètre extérieur du tore ou sa projection sur le diamètre d'entrée de chaque bague, peut être supérieur à celui-ci.As a variant, the outside diameter of the torus or its projection onto the inlet diameter of each ring can be greater than this.
L'invention a également pour objet différents procédés de montage d'un tel joint de transmission.
D'autres caractéristiques et avantages de la présente invention apparaîtront clairement à la lecture de la description suivante d'un mode de réalisation particulier de celle-ci, en se référant aux dessins annexés, sur lesquels :The invention also relates to various methods of mounting such a transmission joint. Other characteristics and advantages of the present invention will appear clearly on reading the following description of a particular embodiment thereof, with reference to the appended drawings, in which:
- la figure 1 est une coupe transversale d'un joint de transmission conforme à l'invention,FIG. 1 is a cross section of a transmission joint according to the invention,
- la figure 2 est une coupe selon A- A de la figure 1 ,FIG. 2 is a section along A- A of FIG. 1,
- la figure 3A est une coupe transversale du tripode des figures 1 et 2, en position d'assemblage de la bague et du galet sur un de ses bras,FIG. 3A is a cross section of the tripod of FIGS. 1 and 2, in the assembly position of the ring and the roller on one of its arms,
- la figure 3B est un agrandissement partiel de la figure 3A,FIG. 3B is a partial enlargement of FIG. 3A,
- la figure 3C est une vue de dessus selon la flèche V,FIG. 3C is a top view along the arrow V,
- la figure 4 est une coupe selon B-B de la figure 3A,FIG. 4 is a section on B-B in FIG. 3A,
- la figure 5 est une coupe transversale du tripode des figures 1 et 2 après l'assemblage de la bague et du galet sur un de ses bras,FIG. 5 is a cross section of the tripod of FIGS. 1 and 2 after the ring and the roller have been assembled on one of its arms,
- la figure 6 est une coupe selon C-C de la figure 5, etFIG. 6 is a section along C-C in FIG. 5, and
- la figure 7 est une coupe selon D- D de la figure 5.- Figure 7 is a section on D- D of Figure 5.
Le joint homocinétique représenté sur les figures comporte un élément extérieur 1 , dans lequel sont aménagées trois rampes intérieures de guidage axial 2, disposant d'un fond plat 3 compris entre deux chemins de roulement 4 de section torique, et un élément intérieur, ou tripode 6, muni de trois bras 7 supportant des galets de roulement 8 dans les rampes de guidage 2, par l'intermédiaire de bagues 9 permettant au tripode 6 de s'incliner par rapport à l'élément
extérieur 1 et aux bras 7 de s'incliner à l'intérieur des bagues 9 dans la direction longitudinale du joint en situation de braquage, sans modifier l'orientation des galets 8 dans les rampes de guidage 2.The constant velocity joint shown in the figures comprises an external element 1, in which three internal axial guide ramps 2 are arranged, having a flat bottom 3 comprised between two raceways 4 of O-section, and an internal element, or tripod 6, provided with three arms 7 supporting rollers 8 in the guide rails 2, by means of rings 9 allowing the tripod 6 to tilt relative to the element outside 1 and arms 7 to tilt inside the rings 9 in the longitudinal direction of the joint in a turning situation, without modifying the orientation of the rollers 8 in the guide ramps 2.
De façon classique, les galets 8 disposent d'une surface externe torique 11, facilitant leur roulement dans les rampes 2 de l'élément extérieur 1 , et d'une surface interne cylindrique 12, reposant sur les bagues 9, dont la surface externe 9a est également cylindrique, par l'intermédiaire d'une portée d'aiguilles 13, facilitant la rotation relative de ces deux éléments.Conventionally, the rollers 8 have an external toric surface 11, facilitating their rolling in the ramps 2 of the external element 1, and a cylindrical internal surface 12, resting on the rings 9, whose external surface 9a is also cylindrical, via a bearing of needles 13, facilitating the relative rotation of these two elements.
Conformément à l'invention, les bras 7 du tripode 6 ont une forme torique, alors que les bagues 9 ont une surface interne 9b sphérique. Grâce à cette disposition, les bras 7 peuvent s'incliner par rapport aux bagues 9 dans la direction longitudinale du joint, tout en étant maintenues axialement dans ces dernières. Par ailleurs, chaque bague 9 se déplace axialement à l'intérieur de son galet 8, en fonction de l'inclinaison du bras 7 vis-à-vis de celui-ci. Plus précisément, les bagues 9 ont la possibilité de coulisser vers l'extrémité des galets 8 en réponse à l'inclinaison des bras 7 dans les galets 8, imposée par les changements d'orientation du tripode 6 dans l'élément extérieur 1 , de façon à ne pas limiter l'angle de braquage du joint.According to the invention, the arms 7 of the tripod 6 have a toric shape, while the rings 9 have a spherical internal surface 9b. Thanks to this arrangement, the arms 7 can tilt relative to the rings 9 in the longitudinal direction of the joint, while being held axially in the latter. Furthermore, each ring 9 moves axially inside its roller 8, as a function of the inclination of the arm 7 with respect to the latter. More specifically, the rings 9 have the possibility of sliding towards the end of the rollers 8 in response to the inclination of the arms 7 in the rollers 8, imposed by the changes in orientation of the tripod 6 in the external element 1, so as not to limit the joint's turning angle.
En cas de braquage, les bras 7 du tripode 6 s'inclinent donc par rapport à un plan perpendiculaire à l'axe longitudinal de l'élément extérieur 1 , tandis que les galets 8 roulent à l'intérieur des rampes de guidage 2, sans changer d'orientation vis à vis des chemins de roulement 4, et que les bagues 9 sont déportées vers l'extrémité des galets 8, tout risque de basculement des galets 8 à l'intérieur des rampes 2 étant écarté en raison de leur appui permanent contre le fond 3 des rampes 2, sous la poussée des bagues 9 et des bras 7.In the event of a deflection, the arms 7 of the tripod 6 therefore tilt relative to a plane perpendicular to the longitudinal axis of the external element 1, while the rollers 8 roll inside the guide rails 2, without change orientation with respect to the raceways 4, and that the rings 9 are offset towards the end of the rollers 8, any risk of the rollers 8 tilting inside the ramps 2 being eliminated due to their permanent support against the bottom 3 of the ramps 2, under the thrust of the rings 9 and of the arms 7.
En se reportant aux figures 3 A à 4, on voit que le montage d'une bague 9 sur un bras 7 peut s'opérer en faisant tourner le tripode 6 autour de son axe z par rapport à la bague 9, d'un angle α tel que le
diamètre d'entrée B de la bague 9 (inférieur au diamètre sphérique intérieur C de celle-ci), soit supérieur ou égal à la projection A(α) sur ce diamètre du diamètre extérieur A du tore des bras du tripode. Conformément aux schémas, ce montage n'est cependant réalisable que si chaque bras 7 présente effectivement les deux méplats latéraux 7b perpendiculaires à l'axe z du tripode 7 qui sont mis en évidence sur la figure 3C, et si le rayon du cercle engendrant le tore des bras du tripode est inférieur au rayon sphérique intérieur C/2 des bagues 9.Referring to Figures 3 A to 4, we see that the mounting of a ring 9 on an arm 7 can be done by rotating the tripod 6 around its axis z relative to the ring 9, by an angle α such that the inlet diameter B of the ring 9 (less than the inner spherical diameter C thereof), or greater than or equal to the projection A (α) on this diameter of the outer diameter A of the torus of the arms of the tripod. According to the diagrams, this assembly is however only possible if each arm 7 actually has the two lateral flats 7b perpendicular to the axis z of the tripod 7 which are highlighted in FIG. 3C, and if the radius of the circle generating the torus of the tripod arms is less than the inner spherical radius C / 2 of the rings 9.
Après sa mise en place chaque bague 9 est redressée par rapport à son bras 7, de sorte qu'elle peut tourner librement autour de ce dernier, tout en étant maintenue axialement. Etant donné qu'une fois monté dans l'élément extérieur, le tripode 6 est immobilisé en rotation autour de son axe z par les trois rampes de guidage 2 des galets 8, on comprend que le retour des bagues 9 dans une position inclinée p.ar rapport aux bras, telle qu'illustrée par la figure 3 A, qui permettrait éventuellement aux bagues 9 de se dégager des bras 7, est impossible après l'assemblage du joint.After its installation each ring 9 is straightened relative to its arm 7, so that it can rotate freely around the latter, while being held axially. Since once mounted in the external element, the tripod 6 is immobilized in rotation about its axis z by the three guide ramps 2 of the rollers 8, it is understood that the return of the rings 9 in an inclined position p. ar relative to the arms, as illustrated by FIG. 3 A, which would possibly allow the rings 9 to disengage from the arms 7, is impossible after the joint has been assembled.
L'assemblage complet du joint proposé par l'invention peut s'effectuer en montant selon la technique connue les galets 8 sur les bagues 9 et les aiguilles 13, avant de mettre en place chaque sous ensemble bague-aiguilles-galet sur un bras 7, conformément à l'opération décrite ci-dessus, et de monter l'ensemble tripode-galets- aiguilles-bagues dans l'élément extérieur 1 du joint.The complete assembly of the seal proposed by the invention can be carried out by mounting, according to the known technique, the rollers 8 on the rings 9 and the needles 13, before fitting each ring-needle-roller assembly on an arm 7 , in accordance with the operation described above, and to mount the tripod-roller-needle-ring assembly in the external element 1 of the seal.
Sans sortir du cadre de l'invention, l'emmanchement des bagues 9 sur les bras 7 peut également être réalisé en force, sans toutefois dépasser la limite de déformation élastique des bagues 9. Comme le précédent, ce mode de montage suppose que le diamètre de passage de la bague 9 soit inférieur à son diamètre intérieur sphérique (B < C). Si toutefois l'emmanchement est effectué en force sans incliner le bras 7 par rapport à la bague 9 (α=0), la seconde condition à respecter n'est plus A(α) < B, mais tout simplement que le plus
grand diamètre A du bras 7 soit supérieur au diamètre d'introduction de la bague (A > B).Without departing from the scope of the invention, the fitting of the rings 9 onto the arms 7 can also be achieved by force, without however exceeding the limit of elastic deformation of the rings 9. Like the previous one, this mounting method assumes that the diameter passage of the ring 9 is less than its spherical inner diameter (B <C). If however the fitting is effected by force without tilting the arm 7 relative to the ring 9 (α = 0), the second condition to be observed is no longer A (α) <B, but quite simply that the most large diameter A of the arm 7 is greater than the diameter of introduction of the ring (A> B).
Enfin, il est également possible d'envisager, un troisième mode de montage du joint, combinant l'emmanchement en force, et l'inclinaison de la bague par rapport au bras . Les conditions à respecter pour adopter cette solution, sont d'une part que le diamètre d'introduction de la bague B soit inférieur au diamètre sphérique de la bague C, et d'autre part que sous l'angle d'inclinaison α choisi pour l'emmanchement, la projection A(α) du grand diamètre du bras, reste supérieure à B.Finally, it is also possible to envisage a third mode of mounting the joint, combining the force fitting, and the inclination of the ring relative to the arm. The conditions to be observed to adopt this solution are, on the one hand, that the diameter of introduction of the ring B is less than the spherical diameter of the ring C, and on the other hand that under the angle of inclination α chosen the fitting, the projection A (α) of the large diameter of the arm, remains greater than B.
Les avantages du joint de transmission tripode et des procédés de montage de celui-ci proposés par l'invention sont nombreux, parmi ceux-ci, on peut citer :The advantages of the tripod transmission joint and the methods of mounting it offered by the invention are numerous, among these, we can cite:
- le nombre réduit d'éléments constitutifs du joint,- the reduced number of components of the joint,
- la garantie absolue du maintien axial des bagues sur les bras, pendant le fonctionnement du joint,- the absolute guarantee of the axial retention of the rings on the arms, during the operation of the seal,
la facilité de montage du joint ou d'éventuelles opérations invpe.rrssfiess r diee. H déémmnonnttaagcee.the ease of mounting the seal or possible invpe.rrssfiess r diee operations. H dememnonnttaagcee.
- la réduction des zones de frottement des bagues sur les bras résultant de la présence de méplats latéraux sur les bras, etthe reduction of the friction zones of the rings on the arms resulting from the presence of lateral flats on the arms, and
- la possibilité de lubrifier les aiguilles, et les zones de contact des bras sur les bagues.
- the possibility of lubricating the needles, and the contact areas of the arms on the rings.
Claims
[1] Joint de transmission tripode constitué d'un élément extérieur (1) présentant trois rampes intérieures de guidage (2) et d'un élément intérieur (6) muni de trois bras de guidage (7) présentant deux méplats latéraux (7b) perpendiculaires à leur axe (z), et supportant des galets de roulement (8) dans les rampes (2) de l'élément extérieur (1) par l'intermédiaire de bagues (9) permettant au tripode (6) de s'incliner par rapport à l'élément extérieur (1) sans modifier l'orientation des galets (8) à l'intérieur des rampes de guidage (2), caractérisé en ce que le diamètre d'entrée B des bagues (9) est inférieur à leur diamètre intérieur sphérique C, ce dernier étant supérieur à celui du cercle engendrant le tore des bras du tripode.[1] Tripod transmission joint consisting of an exterior element (1) having three interior guide ramps (2) and an interior element (6) provided with three guide arms (7) having two lateral flats (7b) perpendicular to their axis (z), and supporting rolling rollers (8) in the ramps (2) of the external element (1) via rings (9) allowing the tripod (6) to tilt relative to the external element (1) without modifying the orientation of the rollers (8) inside the guide ramps (2), characterized in that the inlet diameter B of the rings (9) is less than their spherical interior diameter C, the latter being greater than that of the circle generating the torus of the tripod arms.
[2] Joint de transmission selon la revendication 1 , caractérisé en ce le diamètre d'entrée B des bagues (9) est inférieur à leur diamètre intérieur sphérique C.[2] Transmission joint according to claim 1, characterized in that the inlet diameter B of the rings (9) is less than their spherical interior diameter C.
[3] Joint de transmission selon la revendication 1 ou 2, caractérisé en ce que le diamètre d'entrée B de chaque bague (9) est supérieur ou égal à la projection A(α) sur ce diamètre, du diamètre extérieur A du tore, lors de son introduction dans celle-ci.[3] Transmission joint according to claim 1 or 2, characterized in that the inlet diameter B of each ring (9) is greater than or equal to the projection A(α) on this diameter, of the external diameter A of the torus , during its introduction into it.
[4] Joint de transmission selon la revendications 1 ou 2, caractérisé en ce que le diamètre extérieur A du tore est supérieur au diamètre d'entrée B des bagues (9).[4] Transmission joint according to claims 1 or 2, characterized in that the external diameter A of the torus is greater than the inlet diameter B of the rings (9).
[5] Joint de transmission selon la revendication 1 ou 2, caractérisé en ce que la projection A(α) du diamètre extérieur du tore sur le diamètre d'entrée B de chaque bague (9) est supérieure à celui-ci.
[6] Procédé de montage d'un joint de transmission conforme à l'une des revendication 1 à 5, caractérisé en ce que les bagues (9) sont engagées sur les bras (7) du tripode [5] Transmission joint according to claim 1 or 2, characterized in that the projection A(α) of the external diameter of the torus on the inlet diameter B of each ring (9) is greater than this. [6] Method of mounting a transmission joint according to one of claims 1 to 5, characterized in that the rings (9) are engaged on the arms (7) of the tripod
(6) en faisant tourner préalablement celui-ci autour de son axe (z) par rapport à chaque bague (9) d'un angle (α) tel que la condition B A(α) soit respectée lors de cet engagement.(6) by previously rotating it around its axis (z) relative to each ring (9) by an angle (α) such that the condition B A(α) is respected during this engagement.
[7] Procédé de montage d'un joint de transmission conforme à la revendication 1 et à la revendication 5 tel que le diamètre d'introduction de la bague B soit inférieur à son diamètre sphérique C, caractérisé en ce que les bagues (9) sont engagées sur les bras (7) du tripode (6) en faisant tourner préalablement celui-ci autour de son axe (z) par rapport à chaque bague (9) o'un angle (α), tel que la condition B < A(α) soit respectée.
[7] Method of mounting a transmission joint according to claim 1 and claim 5 such that the insertion diameter of the ring B is less than its spherical diameter C, characterized in that the rings (9) are engaged on the arms (7) of the tripod (6) by previously rotating the latter around its axis (z) relative to each ring (9) at an angle (α), such that the condition B < A (α) is respected.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9610606A FR2752890B1 (en) | 1996-08-30 | 1996-08-30 | TRIPOD TRANSMISSION JOINT AND METHODS OF MOUNTING SUCH A TRANSMISSION JOINT |
| FR96/10606 | 1996-08-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1998009089A1 true WO1998009089A1 (en) | 1998-03-05 |
Family
ID=9495311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR1997/001440 WO1998009089A1 (en) | 1996-08-30 | 1997-08-01 | Tripod universal transmission joint and methods for mounting same |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR2752890B1 (en) |
| WO (1) | WO1998009089A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000053944A1 (en) * | 1999-03-05 | 2000-09-14 | Ntn Corporation | Constant velocity universal joint |
| GB2372549A (en) * | 2001-02-21 | 2002-08-28 | Visteon Global Tech Inc | Anti-shudder tripod universal joint |
| WO2003095857A1 (en) * | 2002-05-08 | 2003-11-20 | Sobhy Lahib Girguis | Synchronized sliding joint |
| EP1327083A4 (en) * | 2000-10-13 | 2005-01-19 | Delphi Tech Inc | Constant velocity joint of tripod type |
| KR100489991B1 (en) * | 2001-01-19 | 2005-05-17 | 혼다 기켄 고교 가부시키가이샤 | Constant velocity universal joint |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19834142A1 (en) * | 1998-07-29 | 2000-02-03 | Schaeffler Waelzlager Ohg | Constant velocity drive joint has three journals with rollers with needle bearings secured by retaining rings with rolled over edges |
| JP4362210B2 (en) | 2000-06-07 | 2009-11-11 | 本田技研工業株式会社 | Method of quenching workpiece having hole and auxiliary tool for quenching |
| TWI298767B (en) | 2002-10-25 | 2008-07-11 | Ntn Toyo Bearing Co Ltd | Tripod type constant velocity joint |
| DE102010008592B4 (en) | 2009-02-20 | 2024-10-31 | GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) | Constant velocity joint with protection against excessive deflection |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2608701A1 (en) * | 1986-12-23 | 1988-06-24 | Nippon Seiko Kk | UNIVERSAL JOINT WITH CONSTANT SPEED TYPE TRIPODE |
| WO1990007067A1 (en) * | 1988-12-17 | 1990-06-28 | Hardy Spicer Limited | Constant velocity ratio universal joints |
| US5019016A (en) * | 1990-04-10 | 1991-05-28 | Gkn Automotive Inc. | Anti-shudder tripod constant velocity universal joint |
| EP0441382A1 (en) * | 1990-02-08 | 1991-08-14 | Toyota Jidosha Kabushiki Kaisha | Plunging type constant velocity universal joint |
| DE4408812A1 (en) * | 1993-03-24 | 1994-09-29 | Schaeffler Waelzlager Kg | Pivoting bearing |
| WO1997002438A1 (en) * | 1995-07-04 | 1997-01-23 | Gkn Automotive Ag | Tripode type constant velocity ratio universal joints |
-
1996
- 1996-08-30 FR FR9610606A patent/FR2752890B1/en not_active Expired - Fee Related
-
1997
- 1997-08-01 WO PCT/FR1997/001440 patent/WO1998009089A1/en active Search and Examination
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2608701A1 (en) * | 1986-12-23 | 1988-06-24 | Nippon Seiko Kk | UNIVERSAL JOINT WITH CONSTANT SPEED TYPE TRIPODE |
| WO1990007067A1 (en) * | 1988-12-17 | 1990-06-28 | Hardy Spicer Limited | Constant velocity ratio universal joints |
| EP0441382A1 (en) * | 1990-02-08 | 1991-08-14 | Toyota Jidosha Kabushiki Kaisha | Plunging type constant velocity universal joint |
| US5019016A (en) * | 1990-04-10 | 1991-05-28 | Gkn Automotive Inc. | Anti-shudder tripod constant velocity universal joint |
| DE4408812A1 (en) * | 1993-03-24 | 1994-09-29 | Schaeffler Waelzlager Kg | Pivoting bearing |
| WO1997002438A1 (en) * | 1995-07-04 | 1997-01-23 | Gkn Automotive Ag | Tripode type constant velocity ratio universal joints |
Non-Patent Citations (1)
| Title |
|---|
| "FREE SLIP DRIVE ASSEMBLY FOR TELESCOPIC TRIPOT UNIVERSAL JOINTS", RESEARCH DISCLOSURE, no. 312, 1 April 1990 (1990-04-01), pages 293, XP000104601 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000053944A1 (en) * | 1999-03-05 | 2000-09-14 | Ntn Corporation | Constant velocity universal joint |
| US6475092B1 (en) | 1999-03-05 | 2002-11-05 | Ntn Corporation | Constant velocity universal joint |
| EP1327083A4 (en) * | 2000-10-13 | 2005-01-19 | Delphi Tech Inc | Constant velocity joint of tripod type |
| KR100489991B1 (en) * | 2001-01-19 | 2005-05-17 | 혼다 기켄 고교 가부시키가이샤 | Constant velocity universal joint |
| GB2372549A (en) * | 2001-02-21 | 2002-08-28 | Visteon Global Tech Inc | Anti-shudder tripod universal joint |
| US6699134B2 (en) | 2001-02-21 | 2004-03-02 | Visteon Global Technologies, Inc. | Anti-shudder tripod type CV universal joint |
| WO2003095857A1 (en) * | 2002-05-08 | 2003-11-20 | Sobhy Lahib Girguis | Synchronized sliding joint |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2752890A1 (en) | 1998-03-06 |
| FR2752890B1 (en) | 1998-09-25 |
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