FR2562000A1 - Transmission device with two differentials, for vehicle with four driving wheels - Google Patents
Transmission device with two differentials, for vehicle with four driving wheels Download PDFInfo
- Publication number
- FR2562000A1 FR2562000A1 FR8404866A FR8404866A FR2562000A1 FR 2562000 A1 FR2562000 A1 FR 2562000A1 FR 8404866 A FR8404866 A FR 8404866A FR 8404866 A FR8404866 A FR 8404866A FR 2562000 A1 FR2562000 A1 FR 2562000A1
- Authority
- FR
- France
- Prior art keywords
- pinion
- differential
- shaft
- vehicle
- differentials
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT 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
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/34—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles
- B60K17/344—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having a transfer gear
-
- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
-
- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/037—Gearboxes for accommodating differential gearings
-
- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02013—Extension units for gearboxes, e.g. additional units attached to a main gear
-
- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02039—Gearboxes for particular applications
- F16H2057/02043—Gearboxes for particular applications for vehicle transmissions
-
- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02039—Gearboxes for particular applications
- F16H2057/02043—Gearboxes for particular applications for vehicle transmissions
- F16H2057/02052—Axle units; Transfer casings for four wheel drive
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Arrangement And Driving Of Transmission Devices (AREA)
- Retarders (AREA)
Abstract
Description
La pressente invention concerne un dispositif de transmission destiné à équiper un véhicule à quatre roues motrices, ce dispositif étant du type comprenant deux dif ferentiels associés respectivement aux roues du train avant et aux roues du train arrière. The present invention relates to a transmission device intended to equip a four-wheel drive vehicle, this device being of the type comprising two differential dif associated with respectively the wheels of the front axle and the wheels of the rear axle.
On connait déjà de tels dispositifs de transmission de conception relativement simple puisqu'ils ne comprennent que deux différentiels et ne sont pas dotés d'un différentiel dit 1,interponts" permettant de répartir la puissance entre les deux trains avant et arrière. Dans un tel dispo sitif à groupe moto propulseur disposé transversalement à l'avant du véhicule, l'arbre de sortie de la boite de vites- ses entraîne les roues avant par l'intermédiaire d'un premier différentiel. Le boîtier de ce premier différentiel, qui constitue son organe d'entrée, comporte alors un prolongement qui, par l'intermédiaire d'un couple conique, entraîne un arbre de transmissron relié au deuxième difféen- tiel associé au train arrière. There are already known such relatively simple design transmission devices since they only include two differentials and are not provided with a differential known as 1, "bridged" allowing power to be distributed between the two front and rear axles. available with propulsion unit arranged transversely at the front of the vehicle, the gearbox output shaft drives the front wheels by means of a first differential The housing of this first differential, which constitutes its input member then comprises an extension which, by means of a bevel gear, drives a transmissron shaft connected to the second differential associated with the rear axle.
Cette disposition présente comme inconvénient principal que l'encombrement du corps du premier différentiel à partir duquel s'effectue la prise de mouvement en direction du deuxième différentiel est sensiblement accru, du fait de la présence dudit prolongement et du couple conique. Cet encombrement important rend difficile et coûteuse l'adaptation d'un véhicule de série et sa transformation en véhicule à quatre roues motrices. This arrangement has the main drawback that the bulk of the body of the first differential from which the power take-off is made in the direction of the second differential is significantly increased, due to the presence of said extension and of the bevel torque. This large size makes it difficult and expensive to adapt a production vehicle and transform it into a four-wheel drive vehicle.
De plus, il en résulte une charge plus élevée sur les roulements supportant à rotation le boîtier du différentiel associé aux roues avant, alors que la charge supportée par ces roulements est déjà par construction désé quilibrée. In addition, this results in a higher load on the bearings rotatably supporting the differential housing associated with the front wheels, while the load supported by these bearings is already by imbalanced construction.
Le but de l'invention est de proposer un dispositif de transmission qui ne présente pas ces inconvénients, qui soit en particulier plus simple et qui permette d'obtenir une répartition plus équilibrée de la charge exercée sur les roulements supportant le boîtier du différentiel situé immédiatement à la sortie du groupe moto-propulseur. The object of the invention is to propose a transmission device which does not have these drawbacks, which is in particular simpler and which makes it possible to obtain a more balanced distribution of the load exerted on the bearings supporting the differential housing located immediately. at the exit of the powertrain.
A cet effet,l'invention a pour objet un dispositif de transmission pour véhicule à quatre roues motrices,du type comprenant deux différentiels,associés respectivement, l'un au train de roues avant et l'autre au train de roues arrière du véhicule,l'un de ces différentiels étant disposé au voisinage immédiat d'un groupe moto-propulseur et comportant un boîtier portant une couronne dentée entraînée par l'organe de sortie du groupe moto-propulseur,caractérisé en ce qu'il comporte un pignon qui engrène avec ladite couronne en un point de cette dernière à peu près diamétralement opposé par rapport au point d'engrènement de cette couronne avec l'organe de sortie du groupe moto-propulseur,ce deuxième pignon étant utilisé pour transmettre la puissance en direction du deuxième différentiel. To this end, the subject of the invention is a transmission device for a four-wheel drive vehicle, of the type comprising two differentials, associated respectively, one with the front wheel train and the other with the rear wheel train of the vehicle, one of these differentials being disposed in the immediate vicinity of a powertrain and comprising a housing carrying a toothed ring driven by the output member of the powertrain, characterized in that it comprises a pinion which meshes with said crown at a point on the latter approximately diametrically opposite with respect to the point of engagement of this crown with the output member of the power train, this second pinion being used to transmit power in the direction of the second differential .
Suivant un mode de réalisation,le deuxième pignon est porté par un tronçon d'arbre d'axe parallèle à l'axe des planétaires du premier différentiel,ce tronçon d'arbre portant un pignon de renvoi conique en prise avec un pignon solidaire d'un arbre longitudinal relié au deuxième différen tiel. According to one embodiment, the second pinion is carried by a section of shaft with an axis parallel to the axis of the planets of the first differential, this section of shaft carrying a conical return pinion engaged with a pinion integral with a longitudinal shaft connected to the second differential.
L'invention va etre décrite plus en détail ci-dessous en se référant aux dessins annexés donnés uniquement à titre d'exemple et sur lesquels
- la Fig.l est une vue partielle en partie en élévation et en partie en coupe d'un dispositif de transmission selon l'invention ;
- la Fig.2 est une vue schématique en coupe suivant la ligne 2-2 de la Fiv.1. The invention will be described in more detail below with reference to the accompanying drawings given solely by way of example and in which
- Fig.l is a partial view partly in elevation and partly in section of a transmission device according to the invention;
- Fig.2 is a schematic sectional view along line 2-2 of Fiv.1.
On voit sur le dessin une partie d'un groupe moto-propulseur comprenant un moteur M et une boîte de vitesses B disposés transversalement c'est-d-dire perpendiculairement à la direction longitudinale du véhicule. We can see in the drawing part of a powertrain comprising a motor M and a gearbox B arranged transversely, that is to say perpendicular to the longitudinal direction of the vehicle.
L'axe X-X constitue l'axe du vilebrequin du moteur et de l'arbre primaire de la bote de vitesses,tandis que l'axe
Y-Y constitue l'axe de l'arbre secondaire de cette même boîte de vitesses.The axis XX constitutes the axis of the engine crankshaft and the primary shaft of the gearbox, while the axis
YY constitutes the axis of the secondary shaft of this same gearbox.
Un pignon 10 de sortie de cette botte de vitesses ainsi qu'un premier différentiel D1 sont reçus en partie dans un meme carter 11 complété par un carter 12.Le carter il peut être le carter d'origine du véhicule à deux roues motrices à partir duquel est effectuée l'adaptaiion.Le pignon 10 engrène avec une couronne 13 fixée sur le boîtier 14 du différentiel D1 qui,de façon classique est tourillonné par l'intermédiaire de deux paliers 15,16 dans son carter. A pinion 10 output from this gear boot as well as a first differential D1 are received in part in the same casing 11 supplemented by a casing 12. The casing may be the original casing of the two-wheel drive vehicle from which the adaptation is carried out. The pinion 10 meshes with a crown 13 fixed on the housing 14 of the differential D1 which, in a conventional manner is journalled by means of two bearings 15, 16 in its casing.
Egalement de façon classique,ce différentiel comprend un axe ou un croisillon 17 sur lequel sont montés rotatifs des satellites 18 en prise avec deux planétaires 19,20 qui constituent les organes de sortie du différentiel et qui sont reliés à des arbres de transmission 21 et 22 d'axe Z-Z parallèle aux axes
X-X et Y-Y et destinés à entraîner les deux roues avant du véhicule.Also in a conventional manner, this differential comprises an axis or a spider 17 on which are rotatably mounted satellites 18 engaged with two planets 19,20 which constitute the output members of the differential and which are connected to transmission shafts 21 and 22 ZZ axis parallel to the axes
XX and YY and intended to drive the two front wheels of the vehicle.
L'élément 12 du carter delimite d'une part,une partie du logement 12a destiné à recevoir le différentiel
D1 et, d'autre part,un deuxième logement 12b pour un tronçon d'arbre 23,dont l'axe U-U est parallèle à l'axe Z-Z.Ces c deux logements sont séparés par une cloison 12e .A son ex- trémité de gauche sur le dessin,l'arbre 23 porte un pignon 24, reçu dans le logement 12a, qui est en prise avec lacouronne 13 en un point de cette dernière à peu près diamétralement opposé au joint d'engrènement du pignon 10 de sortie de la botte (Fig.2).Bien entendu,une certaine latitude est permise dans la position de ce pignon 24 qui peut ne pas être rigoureusement sur le même diamètre que le pignon 10.The element 12 of the housing delimits on the one hand, a part of the housing 12a intended to receive the differential
D1 and, on the other hand, a second housing 12b for a shaft section 23, the axis UU of which is parallel to the axis ZZ. These two housings are separated by a partition 12e. At its end of left in the drawing, the shaft 23 carries a pinion 24, received in the housing 12a, which is in engagement with the crown 13 at a point of the latter approximately diametrically opposite to the meshing joint of the pinion 10 leaving the boot (Fig. 2) Of course, a certain latitude is allowed in the position of this pinion 24 which may not be strictly on the same diameter as the pinion 10.
L'arbre 23 peut,conune dans le mode de réalisation représenté,être réalisé en deux parties reliées par des cannelures, une partie interne 25 qui porte le pignon 24 et un fourreau externe 26 portant un pignon de renvoi conique 27 en prise avec un pignon 28 lui-même solidaire d'un arbre 29 d'axe longitudinal V-V relié par un arbre de transmission (non représenté ) au deuxième différentiel D2,associé aux roues arrière et également non représenté.De préférence,l'axe
V-V est contenu dans le plan longitudinal médian du vhicu- le et se trouve à un niveau convenable pour pouvoir attaquer dans de bonnes conditions le différentiel du train arrière.The shaft 23 can, as in the embodiment shown, be made in two parts connected by grooves, an internal part 25 which carries the pinion 24 and an external sleeve 26 carrying a conical return pinion 27 engaged with a pinion 28 itself secured to a shaft 29 with a longitudinal axis VV connected by a transmission shaft (not shown) to the second differential D2, associated with the rear wheels and also not shown.
VV is contained in the median longitudinal plane of the vehicle and is at a level suitable for attacking the rear axle differential in good conditions.
Le tronçon d'arbre 23 -est ru dans des portus 30,31 du carter 12 par l'intermédiaire de deux roulements 32 et 33. De même,le tronçon d'arbre longitudinal 29 est monté à rotation dans un carter 34 par l'intermédiaire de deux roulements 35 et 36. The shaft section 23 is ru in the ports 30, 31 of the casing 12 by means of two bearings 32 and 33. Similarly, the longitudinal shaft section 29 is rotatably mounted in a casing 34 by the intermediate of two bearings 35 and 36.
Le dispositif que l'on vient de décrire est très simple et n'a pas besoin d'être décrit plus en détail.En ce qui concerne son fonctionnement,il suffit d'indiquer que la couronne 13 entraînée par le pignon 10 sert d'organe d'entrée pour le différentiel D1 associé aux roues avant et sert également à entraîner par l'intermédiaire du pignon 24, du tronçon d'arbre 23,du renvoi d'angle 27,28 et de l'arbre 29,le différentiel associé aux roues arrière. The device that has just been described is very simple and does not need to be described in more detail. As regards its operation, it suffices to indicate that the crown 13 driven by the pinion 10 serves as a input member for the differential D1 associated with the front wheels and also serves to drive via the pinion 24, the shaft section 23, the bevel gear 27, 28 and the shaft 29, the associated differential to the rear wheels.
Le fait que le pignon 24 soit en prise avec la couronne 13 en un point diamétralement opposé à celui où se trouve le pignon 10,permet d'équilibrer les efforts supportés par cette couronne et par conséquent par le bottier de différentiel et par les deux roulements 15,16 dans lesquels il est monté. The fact that the pinion 24 is engaged with the crown 13 at a point diametrically opposite to that where the pinion 10 is located, makes it possible to balance the forces supported by this crown and consequently by the differential housing and by the two bearings 15,16 in which it is mounted.
De plus,la disposition de l'arbre 23 dont l'axe
U-U est parallèle aux axes X,X- et Z,Z, permet également d'obtenir un bon équilibrage de la couronne et du bottier dû différentiel.In addition, the arrangement of the shaft 23 whose axis
UU is parallel to the axes X, X- and Z, Z, also makes it possible to obtain a good balance of the crown and the differential case.
Ce dispositif peut facilement être adapté sur un véhicule de série car on peut conserver la-partie 11 du carter du différentiel adjacente au carter de la botte et ajouter simplement l'ensemble constitué par le carter 12 et l'ensemble de l'arbre transversal 23 et du renvoi d'angle,ce qui peut être effectué sans problème majeur. This device can easily be adapted on a series vehicle because one can keep the part 11 of the differential casing adjacent to the boot casing and simply add the assembly constituted by the casing 12 and the assembly of the transverse shaft 23 and the bevel gear, which can be done without major problems.
Le dispositif permet donc de réaliser simplement et de façon économique l'adaptation d'un véhicule de série en un véhicule à quatre roues motrices. The device therefore makes it possible to carry out simply and economically the adaptation of a production vehicle into a four-wheel drive vehicle.
Bien entendu,le même agencement pourrait être transposé dans le cas d'un véhicule dont le groupe moto-propulseur serait disposé transversalement en position centrale ou au voisinage de l'essieu arrière. Of course, the same arrangement could be transposed in the case of a vehicle in which the powertrain would be arranged transversely in the central position or in the vicinity of the rear axle.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8404866A FR2562000B1 (en) | 1984-03-28 | 1984-03-28 | TWO DIFFERENTIAL TRANSMISSION DEVICE FOR A FOUR-DRIVE VEHICLE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8404866A FR2562000B1 (en) | 1984-03-28 | 1984-03-28 | TWO DIFFERENTIAL TRANSMISSION DEVICE FOR A FOUR-DRIVE VEHICLE |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2562000A1 true FR2562000A1 (en) | 1985-10-04 |
FR2562000B1 FR2562000B1 (en) | 1989-01-06 |
Family
ID=9302574
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8404866A Expired FR2562000B1 (en) | 1984-03-28 | 1984-03-28 | TWO DIFFERENTIAL TRANSMISSION DEVICE FOR A FOUR-DRIVE VEHICLE |
Country Status (1)
Country | Link |
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FR (1) | FR2562000B1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1986002049A1 (en) * | 1984-10-06 | 1986-04-10 | Zahnradfabrik Friedrichshafen Ag | Additional axle drive for converting a single-axle drive into a multi-axle drive |
FR2588634A1 (en) * | 1985-10-14 | 1987-04-17 | Steyr Daimler Puch Ag | Torque transmission device for a motor vehicle with two driven axles and with a transverse engine |
EP0321138A2 (en) * | 1987-12-16 | 1989-06-21 | Fuji Jukogyo Kabushiki Kaisha | Transfer device for a four-wheel drive vehicle |
WO2006043650A1 (en) * | 2004-10-20 | 2006-04-27 | Toyota Jidosha Kabushiki Kaisha | Vehicle drive unit, and four-wheel-drive vehicle drive unit |
FR2984244A1 (en) * | 2011-12-16 | 2013-06-21 | Peugeot Citroen Automobiles Sa | Combined casing for 4x4 cross-country motor vehicle, has torque transfer casing comprising front shell located in vicinity of heat engine and fixed to rear shell, where rear shell and differential casing form single and same piece |
FR3072618A1 (en) * | 2017-10-24 | 2019-04-26 | Poclain Hydraulics Industrie | FORWARD TEST DEPORTEE FOR HYDRAULIC MACHINE |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2064449A (en) * | 1979-11-29 | 1981-06-17 | Fuji Heavy Ind Ltd | Transmission apparatus for four-wheel drive motor vehicle |
FR2480204A1 (en) * | 1980-04-10 | 1981-10-16 | Nissan Motor | DRIVE SYSTEM FOR A VEHICLE HAVING AT LEAST TWO PAIR OF WHEELS |
FR2516623A1 (en) * | 1981-11-13 | 1983-05-20 | Fuji Heavy Ind Ltd | IMPROVED GEARBOX FOR MOTOR VEHICLE |
DE3145117A1 (en) * | 1981-11-13 | 1983-05-26 | Audi Nsu Auto Union Ag, 7107 Neckarsulm | Drive unit for motor vehicles with all-wheel drive |
-
1984
- 1984-03-28 FR FR8404866A patent/FR2562000B1/en not_active Expired
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2064449A (en) * | 1979-11-29 | 1981-06-17 | Fuji Heavy Ind Ltd | Transmission apparatus for four-wheel drive motor vehicle |
FR2480204A1 (en) * | 1980-04-10 | 1981-10-16 | Nissan Motor | DRIVE SYSTEM FOR A VEHICLE HAVING AT LEAST TWO PAIR OF WHEELS |
FR2516623A1 (en) * | 1981-11-13 | 1983-05-20 | Fuji Heavy Ind Ltd | IMPROVED GEARBOX FOR MOTOR VEHICLE |
DE3145117A1 (en) * | 1981-11-13 | 1983-05-26 | Audi Nsu Auto Union Ag, 7107 Neckarsulm | Drive unit for motor vehicles with all-wheel drive |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1986002049A1 (en) * | 1984-10-06 | 1986-04-10 | Zahnradfabrik Friedrichshafen Ag | Additional axle drive for converting a single-axle drive into a multi-axle drive |
FR2588634A1 (en) * | 1985-10-14 | 1987-04-17 | Steyr Daimler Puch Ag | Torque transmission device for a motor vehicle with two driven axles and with a transverse engine |
EP0321138A2 (en) * | 1987-12-16 | 1989-06-21 | Fuji Jukogyo Kabushiki Kaisha | Transfer device for a four-wheel drive vehicle |
EP0321138A3 (en) * | 1987-12-16 | 1991-02-06 | Fuji Jukogyo Kabushiki Kaisha | Transfer device for a four-wheel drive vehicle |
WO2006043650A1 (en) * | 2004-10-20 | 2006-04-27 | Toyota Jidosha Kabushiki Kaisha | Vehicle drive unit, and four-wheel-drive vehicle drive unit |
US7354373B2 (en) | 2004-10-20 | 2008-04-08 | Toyota Jidosha Kabushiki Kaisha | Vehicle drive unit, and four-wheel-drive vehicle drive unit |
FR2984244A1 (en) * | 2011-12-16 | 2013-06-21 | Peugeot Citroen Automobiles Sa | Combined casing for 4x4 cross-country motor vehicle, has torque transfer casing comprising front shell located in vicinity of heat engine and fixed to rear shell, where rear shell and differential casing form single and same piece |
FR3072618A1 (en) * | 2017-10-24 | 2019-04-26 | Poclain Hydraulics Industrie | FORWARD TEST DEPORTEE FOR HYDRAULIC MACHINE |
WO2019081554A1 (en) * | 2017-10-24 | 2019-05-02 | Poclain Hydraulics Industrie | Offset power take-off for hydraulic machine |
Also Published As
Publication number | Publication date |
---|---|
FR2562000B1 (en) | 1989-01-06 |
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