FR2580996A1 - Speed reduction device for a wheel hub - Google Patents

Speed reduction device for a wheel hub Download PDF

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Publication number
FR2580996A1
FR2580996A1 FR8506541A FR8506541A FR2580996A1 FR 2580996 A1 FR2580996 A1 FR 2580996A1 FR 8506541 A FR8506541 A FR 8506541A FR 8506541 A FR8506541 A FR 8506541A FR 2580996 A1 FR2580996 A1 FR 2580996A1
Authority
FR
France
Prior art keywords
flange
rows
rolling bodies
radial
inner ring
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.)
Pending
Application number
FR8506541A
Other languages
French (fr)
Inventor
Marcel Guilloton
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.)
Renault SAS
Regie Nationale des Usines Renault
Original Assignee
Renault SAS
Regie Nationale des Usines Renault
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 Renault SAS, Regie Nationale des Usines Renault filed Critical Renault SAS
Priority to FR8506541A priority Critical patent/FR2580996A1/en
Publication of FR2580996A1 publication Critical patent/FR2580996A1/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00Arrangement or mounting of transmissions in vehicles
    • B60K17/04Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/043Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel
    • B60K17/046Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel with planetary gearing having orbital motion
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60BVEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00Hubs
    • B60B27/02Hubs adapted to be rotatably arranged on axle
    • B60B27/04Hubs adapted to be rotatably arranged on axle housing driving means, e.g. sprockets

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Retarders (AREA)

Abstract

Speed reduction device for a motor vehicle drive wheel hub, in which the driving torque is transmitted to the wheel by means of a constant velocity joint and which is provided with a roller-bearing with two rows of rolling bodies 14 which has an outer race 25 provided with a radial fastening flange 27 and an inner race 15 also provided with a radial flange 17, characterised in that the periphery of the radial flange 17 of the inner race 15 has a bearing surface 30 for centring in the corresponding bore 29 of a satellite carrier 22 in which the set of satellite gears 19 is supported by the said flange 17 whilst the body of the said inner race 15 carries internal raceways for two other rows of rolling bodies 16 arranged between the said inner race 15 and the driven element 10 of the constant velocity joint carrying the meshing teeth of the planetary gear 13.

Description

DISPOSITIF REDUCTEUR DE VITESSE POUR MOYEU DE ROUE
L'invention est relative à un dispositif réducteur de vitesse pour moyeu de roue motrice de véhicule automobile, dans lequel le couple d' entraînement est transmis à la roue par l'intermédiaire d'un joint homocinétique et qui est pourvu d'un roulement à deux rangées de corps roulants qui possède une bague extérieure pourvue d' un flasque radial de fixation et une bague intérieure également pourvue d1 un flasque radial.
SPEED REDUCING DEVICE FOR WHEEL HUB
The invention relates to a speed reduction device for a driving wheel hub of a motor vehicle, in which the driving torque is transmitted to the wheel by means of a constant velocity joint and which is provided with a rolling bearing. two rows of rolling bodies which has an outer ring provided with a radial fixing flange and an inner ring also provided with a radial flange.

Un tel roulement se trouve décrit par exemple dans la publication
FR-A-2 163 510. Lorsqu'un roulement doit être associé à un réducteur de vitesse planétaire, la publication GB-A-972 334 montre que la bague intérieure du roulement est montée sur un porte-satellites.
Such a bearing is described for example in the publication
FR-A-2 163 510. When a bearing must be associated with a planetary speed reducer, publication GB-A-972 334 shows that the inner ring of the bearing is mounted on a planet carrier.

Dans les réalisations issues de cet état de la technique le joint homocinétique se prolonge par un arbre de transmission dont 1' extrémité porte une denture d' engrenage planétaire en contact d'entraînement avec les dentures des satellites. I1 en résulte que 1' arbre de transmission doit être supporté par un palier axialement décalé par rapport à la bague du roulement dont 1' agencement est incompatible avec les exigences constructives actuelles selon lesquelles il est particulièrement avantageux d' utiliser des ensembles mécaniques préassemblés dont l'intégration à une roue de véhicule est réalisable à une cadence élevée sans outillage spécialisé. In the embodiments resulting from this state of the art, the constant velocity joint is extended by a transmission shaft, the end of which carries a planetary gear toothing in driving contact with the teeth of the satellites. As a result, the drive shaft must be supported by a bearing axially offset from the bearing ring, the arrangement of which is incompatible with current construction requirements, according to which it is particularly advantageous to use preassembled mechanical assemblies, the l integration into a vehicle wheel is achievable at a high rate without specialized tools.

Selon l'invention la périphérie du flasque radial de la bague intérieure possède une portée de centrage dans 1' alésage correspondant d' un porte-satellites dont 1' ensemble des pignons satellites est supporté par ledit flasque tandis que le corps de la bague porte des chemins intérieurs de roulement de deux autres rangées de corps roulants disposés entre ladite bague intérieure et 1' élément mené du joint homocinétique porteur de la denture d' engrenage du pignon planétaire. According to the invention the periphery of the radial flange of the inner ring has a centering surface in the corresponding bore of a planet carrier of which the set of planet gears is supported by said flange while the body of the ring carries inner raceways of two other rows of rolling bodies arranged between said inner ring and one driven element of the constant velocity joint carrying the gear teeth of the planetary pinion.

Le dispositif ainsi réalisé peut constituer un module d' entraînement préassemblé susceptible d' entraîner directement une roue de véhicule.The device thus produced can constitute a preassembled drive module capable of directly driving a vehicle wheel.

D' autres caractéristiques et avantages de l' invention résulteront de la description faite en référence du dessin dont la figure unique représente une coupe longitudinale de 1' ensemble du dispositif. Other characteristics and advantages of the invention will result from the description given with reference to the drawing, the single figure of which represents a longitudinal section of the entire device.

En référence à la figure, l'élément mené 10 du joint homocinétique se prolonge axialement en direction de la roue il du véhicule représentée par son voile par une queue 12 dont l'extrémité porte la denture d'engrenage d'un pignon planétaire 13. La partie médiane de la queue 12 possède les chemins de roulement de deux rangées de corps roulants 16. Les corps roulants 16 sont disposés entre 1' élément mené 10 du joint homocinétique et une bague intérieure 15 d' un roulement à deux rangées de corps roulants 14. La bague intérieure 15 porte à cet effet les chemins intérieurs de roulement des deux rangées de corps roulants 16 et des chemins extérieurs de deux autres rangées de corps roulants 14. En outre la bague 15 se prolonge axialement par un flasque radial 17.With reference to the figure, the driven element 10 of the constant velocity joint extends axially in the direction of the wheel II of the vehicle represented by its web by a tail 12 whose end carries the gear teeth of a planetary pinion 13. The middle part of the tail 12 has the raceways of two rows of rolling bodies 16. The rolling bodies 16 are arranged between the driven element 10 of the constant velocity joint and an inner ring 15 of a bearing with two rows of rolling bodies 14. The inner ring 15 carries for this purpose the inner raceways of the two rows of rolling bodies 16 and the outer tracks of two other rows of rolling bodies 14. Furthermore, the ring 15 is extended axially by a radial flange 17.

Le flasque radial 17 porte les axes des satellites 19 en prise d' engrènement avec la denture du pignon planétaire 13.The radial flange 17 carries the axes of the satellites 19 in engagement with the teeth of the planetary pinion 13.

Chaque axe 18 est vissé par l'une de ses extrémités dans le flasque 17 et se prolonge en direction du voile 11 de la roue par la portée cylindrique 20 du satellite 19 et par une base de retenue 21 du corps du porte-satellites 22. L' extrémité libre 23 de l'axe 18 porte un filetage et constitue de la sorte 1' élément du goujon de fixation de la roue.Each axis 18 is screwed by one of its ends into the flange 17 and extends in the direction of the web 11 of the wheel by the cylindrical surface 20 of the satellite 19 and by a retaining base 21 of the body of the planet carrier 22. The free end 23 of the axis 18 carries a thread and thus constitutes one element of the wheel fixing stud.

Le porte-satellites 22 se prolonge axialement en direction du roulement par une portion cylindrique 26 formant tambour dont la paroi porte un certain nombre d' ouvertures radiales 28 de montage des pignons satellites 19 et un alésage intérieur 29 dans lequel est engagée la portée de centrage 30 du flasque 17. The planet carrier 22 is extended axially in the direction of the rolling by a cylindrical portion 26 forming a drum, the wall of which carries a certain number of radial openings 28 for mounting the planet gears 19 and an internal bore 29 in which the centering surface is engaged. 30 of flange 17.

I.a bague intérieure 15 porte de façon en soi connue des chemins extérieurs de roulement des deux rangées de corps roulants 14 disposés entre ladite bague intérieure 15 et la bague extérieure 25 dont 1' encombrement axial est sensiblement égal à 1' ensemble des différentes rangées des corps roulants 14, 16. Cette dernière se prolonge également par un flasque radial de fixation 27 dont la périphérie porte un certain nombre de trous taraudés reçevant les vis de fixation 31 qui solidarisent 1' ensemble du dispositif au porte-fusée non représenté et à une couronne extérieure 32 qui porte une denture d'engrenage 33 avec laquelle l' ensemble des satellites 19 est en prise d' engrènement. Ia inner ring 15 carries in known manner external raceways of the two rows of rolling bodies 14 disposed between said inner ring 15 and the outer ring 25 whose one axial size is substantially equal to one set of different rows of bodies rollers 14, 16. The latter is also extended by a radial fixing flange 27, the periphery of which carries a certain number of tapped holes receiving the fixing screws 31 which secure the assembly of the device to the not shown stub axle and to a crown outer 32 which carries a gear teeth 33 with which the set of satellites 19 is engaged.

Le dispositif ainsi réalisé est relativement compact et aisé a' monter du fait que le frein de la roue sera extérieur au dispositif et pourra avantageusement être associé à 1' arbre menant de sortie du mécanisme différentiel du véhicule.  The device thus produced is relatively compact and easy to mount due to the fact that the wheel brake will be external to the device and may advantageously be associated with the drive shaft output of the differential mechanism of the vehicle.

Claims (3)

REVENDICATIONS 1. Dispositif réducteur de vitesse pour moyeu de roue motrice de véhicule automobile, dans lequel le couple d' entraînement est transmis à la roue par l'intermédiaire d' un joint homocinétique et qui est pourvu d'un roulement à deux rangées de corps roulants (14) qui possède une bague extérieure (25) pourvue d' un flasque (27) radial de fixation et une bague intérieure (15) également pourvue d' un flasque (17) radial, caractérisé par le fait que la périphérie du flasque (17) radial de la bague intérieure (15) possède une portée de centrage (30) dans 1' alésage (29) correspondant d'un porte-satellites (22) dont l'ensemble des pignons satellites (19) est supporté par ledit flasque (17) tandis que le corps de ladite bague intérieure (15) porte des chemins intérieurs de roulement de deux autres rangées de corps roulants (16) disposés entre ladite bague intérieure (15) et 1' élément mené (10) du joint homocinétique porteur de la denture d' engrenage du pignon planétaire (13).1. Speed reduction device for a driving wheel hub of a motor vehicle, in which the driving torque is transmitted to the wheel by means of a constant velocity joint and which is provided with a bearing with two rows of rolling bodies (14) which has an outer ring (25) provided with a radial fixing flange (27) and an inner ring (15) also provided with a radial flange (17), characterized in that the periphery of the flange ( 17) radial of the inner ring (15) has a centering surface (30) in one bore (29) corresponding to a planet carrier (22) whose set of planet gears (19) is supported by said flange (17) while the body of said inner ring (15) carries inner raceways of two other rows of rolling bodies (16) disposed between said inner ring (15) and one driven element (10) of the constant velocity joint the gear teeth of the planetary gear (13). 2. Dispositif selon la revendication 1, caractérisé par le fait de l'encombrement axial de 1' ensemble des rangées de corps roulants (14, 16) est sensiblement égal à celui de la bague extérieure (25).  2. Device according to claim 1, characterized by the fact that the axial bulk of one set of rows of rolling bodies (14, 16) is substantially equal to that of the outer ring (25). 3. Dispositif selon la revendication 1 ou 2, caractérisé par le fait que les extrémités (23) des axes (18) des satellites (19) constituent les goujons de fixation de la roue (11). 3. Device according to claim 1 or 2, characterized in that the ends (23) of the axes (18) of the satellites (19) constitute the studs for fixing the wheel (11).
FR8506541A 1985-04-30 1985-04-30 Speed reduction device for a wheel hub Pending FR2580996A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8506541A FR2580996A1 (en) 1985-04-30 1985-04-30 Speed reduction device for a wheel hub

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8506541A FR2580996A1 (en) 1985-04-30 1985-04-30 Speed reduction device for a wheel hub

Publications (1)

Publication Number Publication Date
FR2580996A1 true FR2580996A1 (en) 1986-10-31

Family

ID=9318812

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8506541A Pending FR2580996A1 (en) 1985-04-30 1985-04-30 Speed reduction device for a wheel hub

Country Status (1)

Country Link
FR (1) FR2580996A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5667455A (en) * 1992-10-30 1997-09-16 Nsk Ltd. Reduction gear unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5667455A (en) * 1992-10-30 1997-09-16 Nsk Ltd. Reduction gear unit

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