FR2610682A1 - Sliding tripod transmission joint and transmission shaft including two joints of this type - Google Patents
Sliding tripod transmission joint and transmission shaft including two joints of this type Download PDFInfo
- Publication number
- FR2610682A1 FR2610682A1 FR8701593A FR8701593A FR2610682A1 FR 2610682 A1 FR2610682 A1 FR 2610682A1 FR 8701593 A FR8701593 A FR 8701593A FR 8701593 A FR8701593 A FR 8701593A FR 2610682 A1 FR2610682 A1 FR 2610682A1
- Authority
- FR
- France
- Prior art keywords
- transmission
- sliding
- joint
- shaft
- transmission shaft
- 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.)
- Granted
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
- F16D3/84—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor
- F16D3/843—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor enclosed covers
- F16D3/845—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor enclosed covers allowing relative movement of joint parts due to the flexing of the cover
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
- Diaphragms And Bellows (AREA)
Abstract
Description
JOINT DE TRANSMISSION TRIPODE COULISSANT ET ARBRE DE
TRANSMISSION COMPORTANT DEUX JOINTS DE CE TYPE
L'invention concerne un loint de transmission tripode coulissant et un arbre de transmission comportant deux joints de ce type.SLIDING TRIPOD TRANSMISSION JOINT AND SHAFT
TRANSMISSION COMPRISING TWO SEALS OF THIS TYPE
The invention relates to a sliding tripod transmission distance and a transmission shaft comprising two seals of this type.
L'invention s' applique notamment aux arbres de transmission transversaux qui transmettent le couple de rotation d' un pont différentiel à chaque roue motrice indépendante par 1' intermédiaire de deux joints homocinétiques coulissants dans le but d' autoriser le débattement de la suspension de la roue.The invention applies in particular to transverse drive shafts which transmit the torque of a differential axle to each independent drive wheel by means of two sliding constant velocity joints in order to authorize the movement of the suspension of the wheel.
On connait par la publication FR A 2 444 194 un joint de transmission tripode dans lequel les variations de longueur nécessaires sont limitées axialement par une pièce annulaire retenue disposée dans le volume délimité par un capot à surface intérieure sphérique qui se termine à son extrémité ouverte par la gorge de retenue d' un soufflet d' étanchéité.We know from the publication FR A 2 444 194 a tripod transmission joint in which the necessary length variations are limited axially by a retaining annular part disposed in the volume delimited by a cover with a spherical inner surface which ends at its end opened by the retaining groove of a sealing bellows.
Selon un mode de réalisation connu, le capot est solidaire d' un fourreau porteur de rampes de coulissement de galets muni d'un fond sur lequel prend appui un organe élastique comprimé entre ledit fond et une coupelle sphérique disposée sur l'extrémité de 1' arbre de transmission portant le tripode avec ses galets.According to a known embodiment, the cover is secured to a sheath carrying rollers sliding ramps provided with a bottom on which bears an elastic member compressed between said bottom and a spherical cup disposed on the end of 1 ' transmission shaft carrying the tripod with its rollers.
Le capot et la pièce annulaire doivent être dessinés et élaborés avec un grand soin et cette dernière doit, en outre, présenter avec 1' arbre un jeu radial qui absorbe le mouvement orbital de Il arbre sous 1' angle maximal de fonctionnement du joint correspondant également à Pextension maximale du loint.The cover and the annular part must be designed and worked out with great care and the latter must, in addition, have with the shaft a radial clearance which absorbs the orbital movement of the shaft under the maximum operating angle of the corresponding seal also at the maximum extension of the distance.
Le but poursuivi par 1' invention est de réaliser un point et un arbre de transmission qui soit à caractéristiques égales de performances plus facile à assembler et à mettre en oeuvre.The object of the invention is to produce a point and a transmission shaft which is of equal performance characteristics, easier to assemble and to implement.
ElJe a pour oblet un loint de transmission tripode coulissant et un arbre de transmission comportant deux joints de ce type dont le montage permet une meilleure répartition des variations de longueur de la transmission au cours du débattement de la roue tout en garantissant le contact des galets avec leurs rampes de coulissement au cours de la transmission du couple. ElJe has a sliding tripod transmission distance and a transmission shaft comprising two seals of this type, the mounting of which allows a better distribution of the variations in length of the transmission during the movement of the wheel while guaranteeing the contact of the rollers with their sliding ramps during the transmission of the torque.
A cet effet, 1' invention concerne un joint de transmission du type comportant un fourreau à rampes de coulissement de galets montés sur un tri-axe solidaire d'un arbre de transmission, un fond sur lequel prend appui un organe élastique comprimé entre ledit fond et une coupelle sphérique disposée sur l'extrémité de 1' arbre de transmission. Ce point est caractérisé en ce que la coupelle se prolonge axialement en direction du fond par une lupe à bord radialement évasé dont la longueur réduit la distance de la coupelle audit fond à la longueur de coulissement du loint.To this end, the invention relates to a transmission joint of the type comprising a sheath with rollers sliding ramps mounted on a tri-axis secured to a transmission shaft, a bottom on which an elastic member compressed between said bottom is supported. and a spherical cup disposed on the end of the drive shaft. This point is characterized in that the cup is extended axially in the direction of the bottom by a lupe with a radially flared edge, the length of which reduces the distance from the cup to said bottom to the sliding length of the distance.
Le joint ainsi réalisé monté aux deux extrémités de 1' arbre de transmission permet de répartir équitablement sur chacun des loints les variations de longueur de la transmission.The joint thus produced, mounted at the two ends of the transmission shaft, allows variations in the length of the transmission to be distributed equitably over each of the distances.
D' autres caractéristiques et avantages de l'invention ressortiront de la description faite en référence au dessin annexé dans lequel - la figure 1 est une vue partielle avec coupe axiale du joint de
transmission et de 1' arbre de transmission conforme à l'invention, - la figure 2 est une section 2.2 de la figure 1.Other characteristics and advantages of the invention will emerge from the description given with reference to the appended drawing in which - Figure 1 is a partial view with axial section of the gasket.
transmission and one drive shaft according to the invention, - Figure 2 is a section 2.2 of Figure 1.
La transmission de la figure 1, représentée alignée sur un axe XX, relie par exemple un élément moteur (non représenté), constitué par une sortie de différentiel d' un véhicule à propulsion arrière, à un élément mené 1 constitué par une fusée de roue arrière motrice indépendante. La transmission s' effectue successivement à travers un premier loint homocinétique 2, un arbre de transmission intermédiaire 3 et un deuxième joint homocinétique 4. Les deux joints 2 et 4 sont des oints coulissants
Identiques à tripode disposés symétriquement par rapport à I' arbre intermédiaire 3. On décrira donc ci-dessous uniquement le joint 4.The transmission of FIG. 1, shown aligned on an axis XX, connects for example a driving element (not shown), constituted by a differential output of a rear propulsion vehicle, to a driven element 1 constituted by a wheel spindle independent rear drive. Transmission takes place successively through a first constant velocity 2, an intermediate transmission shaft 3 and a second constant velocity joint 4. The two seals 2 and 4 are sliding anointed
Identical to tripod arranged symmetrically with respect to the intermediate shaft 3. We will therefore describe below only the seal 4.
Le joint 4 comprend un tri-axe 5 fixé à 1' extrémité correspondante de
I' arbre 3 par l'intermédiaire d' un moyeu annulaire 6 emmanché sur celui-ci. Le moyeu 6 porte radialement trois axes cylindriques 7 répartis angulairement à 1200 sur chacun desquels est monté fou un galet sphérique 8 par l'intermédiaire d' un roulement à aiguilles 9.The joint 4 comprises a tri-axis 5 fixed to the corresponding end of
I 'shaft 3 by means of an annular hub 6 fitted thereon. The hub 6 carries radially three cylindrical axes 7 angularly distributed at 1200 on each of which is mounted for a spherical roller 8 by means of a needle bearing 9.
Chaque galet 8 est reçu dans une rainure 10 d' un fourreau 11 solidaire de l'élément mené 1. Les rainures 10 ont une section transversale circulaire et s' étendent parallèlement à 1' axe de 1' élément 1 en définissant chacune deux chemins de roulement pour le galet 8 associé ainsi que cela est montré à la figure 2.Each roller 8 is received in a groove 10 of a sleeve 11 integral with the driven element 1. The grooves 10 have a circular cross section and extend parallel to the axis of the element 1, each defining two paths of bearing for the associated roller 8 as shown in FIG. 2.
Le fourreau 11 se termine par une face d' extrémité plane soudée à un fond 12 et présente dans sa partie centrale un évidement 13 à fond plat perpendiculaire à l'axe XX. Un ressort hélicoldal 14 est comprimé entre le fond de l'évidement 13 et une coupelle 15 disposée sur l'extrémité de l'arbre 3.The sheath 11 ends with a plane end face welded to a bottom 12 and has in its central part a recess 13 with a flat bottom perpendicular to the axis XX. A helical spring 14 is compressed between the bottom of the recess 13 and a cup 15 placed on the end of the shaft 3.
Le fourreau Il se termine à son extrémité ouverte par un bourrelet 17 sur lequel est fixé un collier 18 de rétention de 1' extrémité évasée d' un soufflet élastique 19, 1' autre extrémité de ce soufflet étant fixée directement à r arbre 3 par un collier 20. Il y a lieu de noter que le bourrelet 17 peut être réalisé le long d'un contour triangulaire à sommets arrondis.The sheath It ends at its open end with a bead 17 on which is fixed a collar 18 for retaining the flared end of an elastic bellows 19, the other end of this bellows being fixed directly to the shaft 3 by a collar 20. It should be noted that the bead 17 can be produced along a triangular contour with rounded vertices.
Selon l'invention, la coupelle 15 se prolonge axialement en direction du fond 12 par une jupe 15a à bord 16 radialement évasé dont la longueur réduit la distance de la coupelle 15 par rapport au fond 12 à la longueur de coulissement du joint.According to the invention, the cup 15 is extended axially in the direction of the bottom 12 by a skirt 15a with a radially flared edge 16 whose length reduces the distance of the cup 15 from the bottom 12 to the sliding length of the joint.
Par ailleurs, le fourreau 1 1 porte intérieurement un capot 21 retenue axiale des galets 8 qui s' oppose à 1' extraction accidentelle des tri-axes des fourreaux correspondants lors du transport de la transmission du poste d' assemblage au poste de montage. Le capot 21 assure conjointement avec le collier 18 la retenue axiale du soufflet 19.Furthermore, the sleeve 1 1 internally carries a cover 21 axial retaining rollers 8 which opposes 1 accidental extraction of the tri-axes of the corresponding sleeves during transport of the transmission from the assembly station to the assembly station. The cover 21 provides, together with the collar 18, the axial retention of the bellows 19.
La transmission ainsi décrite fonctionne de la façon suivante
En fonctionnement normal, 1' arbre intermédiaire 3 oscille axialement autour dut une position moyenne à peu près symétrique par rapport aux deux joints 2 et 4 qui lui sont raccordés et est maintenu au voisinage de cette position par les deux ressorts 14, qui compensent par réaction différentielle les accélérations latérales de valeur modérée dues au profil du parcours. Dans ces conditions, dans chaque loint, la coupelle 15 est libre de tout appui et possède une position aléatoire entre le fond 12 et le fourreau il. Par conséquent, il n' y a ni frottement ni usure de cette pièce.The transmission thus described operates in the following manner
In normal operation, the intermediate shaft 3 oscillates axially around had an approximately symmetrical average position with respect to the two seals 2 and 4 which are connected to it and is maintained in the vicinity of this position by the two springs 14, which compensate by reaction differential lateral acceleration of moderate value due to the profile of the course. Under these conditions, in each distance, the cup 15 is free from any support and has a random position between the bottom 12 and the sleeve there. Consequently, there is neither friction nor wear of this part.
L'élongation de la transmission se répartit ainsi équitablement sur les deux joints coulissants 2 et 4 ; en d'autres termes, il suffit que les chemins de roulement 10 de chaque fourreau permettent sous un angle donné la moitié du coulissement total de la transmission. Il est à noter que dans toutes les situations, les deux ressorts 14 jouent un rôle important de partage de course entre les deux joints et de centrage de I'arbre 3. The elongation of the transmission is thus distributed equitably over the two sliding seals 2 and 4; in other words, it suffices that the raceways 10 of each sleeve allow at a given angle half of the total sliding of the transmission. It should be noted that in all situations, the two springs 14 play an important role in sharing the stroke between the two seals and in centering the shaft 3.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8701593A FR2610682B1 (en) | 1987-02-10 | 1987-02-10 | SLIDING TRIPOD TRANSMISSION JOINT AND TRANSMISSION SHAFT HAVING TWO SEALS OF THIS TYPE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8701593A FR2610682B1 (en) | 1987-02-10 | 1987-02-10 | SLIDING TRIPOD TRANSMISSION JOINT AND TRANSMISSION SHAFT HAVING TWO SEALS OF THIS TYPE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2610682A1 true FR2610682A1 (en) | 1988-08-12 |
| FR2610682B1 FR2610682B1 (en) | 1992-05-22 |
Family
ID=9347742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8701593A Expired - Fee Related FR2610682B1 (en) | 1987-02-10 | 1987-02-10 | SLIDING TRIPOD TRANSMISSION JOINT AND TRANSMISSION SHAFT HAVING TWO SEALS OF THIS TYPE |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2610682B1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4302432A1 (en) * | 1992-04-07 | 1993-08-19 | Gkn Automotive Ag | Clockwise rotary joint with deep drawn sheet steel outer part - has radially outwardly pointing collar like flange on open side of cavity of outer part and is enclosed by thin walled ring |
| FR2709521A1 (en) * | 1993-09-02 | 1995-03-10 | Gkn Automotive Ag | Bellows for sealing a constant velocity joint. |
| EP0853202A1 (en) * | 1997-01-10 | 1998-07-15 | Camco International Inc. | Joint assembly |
| FR2907178A1 (en) * | 2006-10-12 | 2008-04-18 | Gkn Driveline Sa Sa | HOMOCINETIC JOINT |
| JP2012042003A (en) * | 2010-08-20 | 2012-03-01 | Ntn Corp | Sliding constant velocity universal joint |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR897400A (en) * | 1942-09-11 | 1945-03-20 | Licentia Gmbh | Flexible control for vehicles |
| GB943379A (en) * | 1962-06-14 | 1963-12-04 | Lorenzo Fiore | An improved mechanical-action snubber-stabilizer for vehicles |
| DE2007016A1 (en) * | 1969-02-26 | 1970-08-27 | Automobiles Peugeot, Paris; Regle Nationale des Usines Renault, Billancourt; (Frankreich) | Universal joint coupling |
| FR2257042A1 (en) * | 1974-01-08 | 1975-08-01 | Chrysler France | Vehicle drive universal joints - have air passages to relieve pressure inside protective rubber cover |
| GB2037943A (en) * | 1978-12-14 | 1980-07-16 | Spicer G | Shaft assembly with homokinetic joints |
| GB2066412A (en) * | 1979-12-26 | 1981-07-08 | Houdaille Industries Inc | Punch Press Assembly Including a Preloaded Encapsulated Spring and Method of Manufacture |
-
1987
- 1987-02-10 FR FR8701593A patent/FR2610682B1/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR897400A (en) * | 1942-09-11 | 1945-03-20 | Licentia Gmbh | Flexible control for vehicles |
| GB943379A (en) * | 1962-06-14 | 1963-12-04 | Lorenzo Fiore | An improved mechanical-action snubber-stabilizer for vehicles |
| DE2007016A1 (en) * | 1969-02-26 | 1970-08-27 | Automobiles Peugeot, Paris; Regle Nationale des Usines Renault, Billancourt; (Frankreich) | Universal joint coupling |
| FR2257042A1 (en) * | 1974-01-08 | 1975-08-01 | Chrysler France | Vehicle drive universal joints - have air passages to relieve pressure inside protective rubber cover |
| GB2037943A (en) * | 1978-12-14 | 1980-07-16 | Spicer G | Shaft assembly with homokinetic joints |
| GB2066412A (en) * | 1979-12-26 | 1981-07-08 | Houdaille Industries Inc | Punch Press Assembly Including a Preloaded Encapsulated Spring and Method of Manufacture |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4302432A1 (en) * | 1992-04-07 | 1993-08-19 | Gkn Automotive Ag | Clockwise rotary joint with deep drawn sheet steel outer part - has radially outwardly pointing collar like flange on open side of cavity of outer part and is enclosed by thin walled ring |
| US5618235A (en) * | 1992-04-07 | 1997-04-08 | Gkn Automotive Ag | Constant velocity universal joint |
| FR2709521A1 (en) * | 1993-09-02 | 1995-03-10 | Gkn Automotive Ag | Bellows for sealing a constant velocity joint. |
| EP0853202A1 (en) * | 1997-01-10 | 1998-07-15 | Camco International Inc. | Joint assembly |
| US5860864A (en) * | 1997-01-10 | 1999-01-19 | Camco International, Inc. | Joint assembly having self-biasing mechanism to bias two shafts into coaxial alignment |
| FR2907178A1 (en) * | 2006-10-12 | 2008-04-18 | Gkn Driveline Sa Sa | HOMOCINETIC JOINT |
| WO2008046977A1 (en) * | 2006-10-12 | 2008-04-24 | Gkn Driveline S.A. | Homokinetic joint |
| US20100022314A1 (en) * | 2006-10-12 | 2010-01-28 | Cedric Gresse | Homokinetic joint |
| CN101558249B (en) * | 2006-10-12 | 2012-07-04 | Gkn传动系统股份有限公司 | Homokinetic joint |
| US8267801B2 (en) | 2006-10-12 | 2012-09-18 | Gkn Driveline S.A. | Homokinetic joint |
| JP2012042003A (en) * | 2010-08-20 | 2012-03-01 | Ntn Corp | Sliding constant velocity universal joint |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2610682B1 (en) | 1992-05-22 |
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| ST | Notification of lapse |