FR2491010A1 - Rear axle for vehicle - has vehicle reverse drive mounted with differential instead of in gear box - Google Patents

Rear axle for vehicle - has vehicle reverse drive mounted with differential instead of in gear box Download PDF

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Publication number
FR2491010A1
FR2491010A1 FR8020658A FR8020658A FR2491010A1 FR 2491010 A1 FR2491010 A1 FR 2491010A1 FR 8020658 A FR8020658 A FR 8020658A FR 8020658 A FR8020658 A FR 8020658A FR 2491010 A1 FR2491010 A1 FR 2491010A1
Authority
FR
France
Prior art keywords
differential
vehicle
bridge according
telescopic
bridge
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.)
Withdrawn
Application number
FR8020658A
Other languages
French (fr)
Inventor
Jean-Paul Enot
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.)
GEN MECANIQUE THERMIQUE
Original Assignee
GEN MECANIQUE THERMIQUE
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 GEN MECANIQUE THERMIQUE filed Critical GEN MECANIQUE THERMIQUE
Priority to FR8020658A priority Critical patent/FR2491010A1/en
Publication of FR2491010A1 publication Critical patent/FR2491010A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
    • B60G11/22—Resilient suspensions characterised by arrangement, location or kind of springs having rubber springs only
    • B60G11/225—Neidhart type rubber springs
    • 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
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
    • F16H3/14—Gearings for reversal only
    • F16H3/145—Gearings for reversal only with a pair of coaxial bevel gears, rotatable in opposite directions
    • 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
    • F16H48/00—Differential gearings
    • F16H48/06—Differential gearings with gears having orbital motion
    • F16H48/08—Differential gearings with gears having orbital motion comprising bevel gears
    • 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
    • F16H48/00—Differential gearings
    • F16H48/06—Differential gearings with gears having orbital motion
    • F16H48/08—Differential gearings with gears having orbital motion comprising bevel gears
    • F16H2048/082—Differential gearings with gears having orbital motion comprising bevel gears characterised by the arrangement of output shafts
    • 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
    • F16H48/00—Differential gearings
    • F16H48/38—Constructional details
    • F16H2048/385—Constructional details of the ring or crown 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
    • F16H48/00—Differential gearings
    • F16H48/38—Constructional details
    • F16H48/40—Constructional details characterised by features of the rotating cases

Abstract

The axle has a crank case, a differential, a drive pinion and two large gear wheels, one for forward drive and one for reverse drive, the two latter being mounted solid to the differential body and symmetrical with respect to each other across the transverse plane of the differential. The transmission from the differential is telescopic using grooved telescopic joints. Either the drive gears for forward and reverse are fixed and the drive pinion moves, or the drive pinion is fixed and the gears move, in which case the differential also slides in the crank case.

Description

La présente invention concerne un pont suspendu inverseur pour véhicule. The present invention relates to a reversing suspension bridge for a vehicle.

La transmission de la puissance d'-un moteur aux roues motrices d'un véhicule automobile s'effectue généralement par l'intermédiaire d'une boite de vitesses et d'un pont assurant le renvoi d'angle et comprenant un différentiel. L'inversion de marche est assurée par l'intermédiaire d'un pignon supplémentaire contenu dans la boîte de vitesses. The transmission of power from an engine to the drive wheels of a motor vehicle is generally effected by means of a gearbox and a bridge ensuring the bevel gear and comprising a differential. Reverse gear is ensured by means of an additional pinion contained in the gearbox.

Il peut être souhaitable de réaliser l'inversion de marche indé pendamment de la boîte de vitesses. It may be desirable to reverse the gear independently of the gearbox.

On a maintenant trouvé qu'il est possible d'associer l'inversion de marche, non à la boîte de vitesses, mais au pont. We have now found that it is possible to associate the reverse gear, not with the gearbox, but with the bridge.

Ainsi un premier objet de l'invention consiste en un pont pour véhicule comprenant, montés dans un carter, un différentiel, un pignon d'attaque, une première grande couronne solidaire du corps du différentiel et une seconde grande couronne également solidaire du corps du différentiel et disposée symétriquement à la première, par rapport au plan transversal du différentiel. Thus a first object of the invention consists of a vehicle bridge comprising, mounted in a casing, a differential, a drive pinion, a first large crown secured to the body of the differential and a second large crown also secured to the body of the differential and arranged symmetrically to the first, with respect to the transverse plane of the differential.

On peut appliquer le mouvement à transmettre à l'une ou l'autre grande couronne, le pont jouant ainsi la fonction d'inverseur du sens de marche. We can apply the movement to be transmitted to one or the other large crown, the bridge thus playing the function of reversing the direction of travel.

La figure 1 en annexe représente schématiquement le pont suspendu inverseur. Le corps 1 du différentiel porte, de façon connue en soi les paliers de passage d'axes des planétaires 2 et 2', les paliers de passage d'axes des satellites 3 et 3' et la grande couronne 4. Il comprend, selon l'invention, une seconde grande couronne 5. Le pignon d'attaque 6 provenant du moteur ou, éventuellement, de la boîte de vitesses et qui possède toujours le même sens de rotation peut s'engréner soit sur la grande couronne 4 communiquant un sens de rotation aux axes 7 et 7', soit sur l'autre grande couronne 5 communiquant aux axes 7 et 7' un sens de rotation inverse du premier. L'ensemble est monté dans le carter 11. Figure 1 in annex schematically shows the reversing suspension bridge. The body 1 of the differential carries, in a manner known per se the bearings for the passage of axes of the planetary 2 and 2 ', the bearings for the passage of axes of the satellites 3 and 3' and the large crown 4. It comprises, according to the invention, a second large crown 5. The driving pinion 6 coming from the engine or, possibly, from the gearbox and which always has the same direction of rotation can mesh either on the large crown 4 communicating a direction of rotation on axes 7 and 7 ', or on the other large crown 5 communicating with axes 7 and 7' a reverse direction of rotation of the first. The assembly is mounted in the casing 11.

L'attaque par le pignon 6 de l'une ou l'autre grande couronne 4 ou 5 peut se faire soit par déplacement transversal dudit pignon, l'ensemble différentiel et grandes couronnes étant fixe en translation, soit par déplacement transversal de l'ensemble différentiel et grandes couronnes, le pignon d'attaque restant fixe. The attack by the pinion 6 of one or the other large crown 4 or 5 can be done either by transverse displacement of said pinion, the differential assembly and large crowns being fixed in translation, or by transverse displacement of the assembly differential and large crowns, the drive pinion remains fixed.

Selon la seconde solution il est nécessaire, les roues motrices étant immobiles en translation l'une par rapport à l'autre, et l'ensemble différentiel et grandes couronnes étant mobile transversalement, que la liaison entre le pont et les roues soit assurée par des moyens télescopiques de transmission. According to the second solution, it is necessary, the driving wheels being stationary in translation with respect to each other, and the differential assembly and large crowns being transversely movable, that the connection between the bridge and the wheels is ensured by telescopic means of transmission.

Un second objet de l'invention consiste en un pont inverseur, comme décrit ci-dessus, auquel on associe, par l'intermédiaire des sorties d'axes des planétaires du différentiel, des moyens télescopiques de transmission. Entre chaque sortie d'axe de planétaire et la roue à commander se trouvera donc un moyen télescopique de transmission qui doit être rigide en rotation mais mobile en translation. A second object of the invention consists of an inverter bridge, as described above, to which telescopic transmission means are associated, by means of the axes of the planetary axes of the differential. Between each planetary axle output and the wheel to be controlled will therefore be a telescopic transmission means which must be rigid in rotation but mobile in translation.

On utilisera par exemple, comme moyen télescopique de transmission un joint télescopique à cannelures longitudinales. Ces cannelures permettent au corps et à la tige du joint de se mouvoir longitudinalement. For example, a telescopic seal with longitudinal grooves will be used as the telescopic means of transmission. These grooves allow the body and the joint rod to move longitudinally.

mais non en rotation, l'un par rapport à l'autre.but not in rotation, one in relation to the other.

La figure 2 représente schématiquement l'association du pont inverseur et de la transmission par joints télescopiques. FIG. 2 schematically represents the association of the reversing bridge and the transmission by telescopic seals.

Les sorties d'axes 7 et 7' transmettent leur mouvement de rotation à des joints télescopiques 8 et 8' par l'intermédiaire de joints de Cardan. Les joints télescopiques transmettent à leur tour par l'intermédiaire de joints de Cardan leur mouvement de rotation aux roues 9 et 9'. The outputs of axes 7 and 7 'transmit their rotational movement to telescopic joints 8 and 8' via Cardan joints. The telescopic joints in turn transmit by means of Cardan joints their rotational movement to the wheels 9 and 9 '.

L'ensemble différentiel et grandes couronnes 10 est monté coulissant dans son carter 11 solidaire du châssis du véhicule. Un système de commande 12 par doigt solidaire de la cage extérieure du roulement 17 (figure 1) et pouvant se déplacer dans une rainure de forme appropriée, par exemple hélicoldale, permet la translation de l'ensemble différentiel et grandes couronnes par rapport au carter, et donc par rapport au pignon d'attaque 6, et l'immobilisation dudit ensemble par rapport audit carter quand une des deux positions extrêmes est atteinte. Ainsi une position extrême engendre une rotation des axes 7 et 7' dans un sens, l'autre position extrême la rotation dans l'autre sens. Dans un cas le véhicule se déplace en marche avant, dans l'autre cas en marche arrière.The differential assembly and large crowns 10 is slidably mounted in its casing 11 secured to the chassis of the vehicle. A control system 12 by finger secured to the outer cage of the bearing 17 (FIG. 1) and being able to move in a groove of suitable shape, for example helical, allows the translation of the differential assembly and large crowns relative to the casing, and therefore relative to the drive pinion 6, and the immobilization of said assembly relative to said casing when one of the two extreme positions is reached. Thus an extreme position generates rotation of the axes 7 and 7 'in one direction, the other extreme position rotation in the other direction. In one case the vehicle is traveling in forward, in the other case in reverse.

Un troisième objet de l'invention concerne l'association du pont inverseur selon l'invention, des joints télescopiques et de la suspension indépendante des roues motrices. A third object of the invention relates to the association of the reversing bridge according to the invention, of the telescopic joints and of the independent suspension of the driving wheels.

La figure 3 représente un exemple de réalisation dans lequel la suspension est assurée par des bras 13 et 13' solidaires par une extrémité des moyeux de roue et comportant à l'autre extrémité des embouts carrés 14 et 14' venant se loger dans un tube 15 également à section carrées faisant partie du châssis. Chaque espace libre entre embout et tube est garni d'un matériau élastique, par exemple d'un boudin en caoutchouc, 16.  FIG. 3 represents an exemplary embodiment in which the suspension is provided by arms 13 and 13 ′ secured by one end of the wheel hubs and comprising at the other end square end pieces 14 and 14 ′ which are housed in a tube 15 also with square section forming part of the chassis. Each free space between end piece and tube is lined with an elastic material, for example a rubber tube, 16.

Claims (6)

REVENDICATIONS 1. Pont pour véhicule comprenant, montés dans un carter, un différentiel, un pignon d'attaque, une première grande couronne solidaire du corps différentiel, caractérisé en ce qu'il comprend une seconde grande couronne également solidaire du corps du différentiel et disposée symétriquement à la première, par rapport au plan transversal du différentiel. 1. Bridge for vehicle comprising, mounted in a housing, a differential, a drive pinion, a first large crown integral with the differential body, characterized in that it comprises a second large crown also integral with the body of the differential and arranged symmetrically to the first, with respect to the transverse plane of the differential. 2. Pont selon la revendication 1, caractérisé en ce qu'on lui associe, par l'intermédiaire des sorties d'axes des planétaires du différentiel, des moyens télescopiques de transmission. 2. Bridge according to claim 1, characterized in that it is associated, via the outputs of the planetary axes of the differential, telescopic transmission means. 3. Pont selon la revendication 2, caractérisé en ce que les moyens télescopiques de transmission sont constitués par des joints télescopiques à cannelures. 3. Bridge according to claim 2, characterized in that the telescopic transmission means are constituted by telescopic grooved joints. 4. Pont selon l'une des revendications 2 et 3, caractérisé en ce que l'ensemble différentiel et grandes couronnes est monté coulissant dans le carter solidaire du châssis du véhicule. 4. Bridge according to one of claims 2 and 3, characterized in that the differential assembly and large crowns is slidably mounted in the housing secured to the vehicle chassis. 5. Pont selon l'une des revendications 2 à 4 caractérisé en ce qu'on lui associe un dispositif de suspension indépendante pour chaque roue motrice. 5. Bridge according to one of claims 2 to 4 characterized in that associated with it an independent suspension device for each drive wheel. 6. Pont selon la revendication 5 caractérisé en ce que le dispositif de suspension indépendante comprend, pour chaque roue, un bras solidaire, par une extrémité, du moyeu de roue et comportant à l'autre extrémité un embout carré venant se loger dans un tube à section carrée faisant partie du châssis, chaque espace libre entre l'embout et le tube de section carrée étant garni d'un matériau élastique.  6. Bridge according to claim 5 characterized in that the independent suspension device comprises, for each wheel, an arm secured at one end to the wheel hub and comprising at the other end a square end fitting accommodating in a tube with a square section forming part of the chassis, each free space between the end piece and the square section tube being lined with an elastic material.
FR8020658A 1980-09-26 1980-09-26 Rear axle for vehicle - has vehicle reverse drive mounted with differential instead of in gear box Withdrawn FR2491010A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8020658A FR2491010A1 (en) 1980-09-26 1980-09-26 Rear axle for vehicle - has vehicle reverse drive mounted with differential instead of in gear box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8020658A FR2491010A1 (en) 1980-09-26 1980-09-26 Rear axle for vehicle - has vehicle reverse drive mounted with differential instead of in gear box

Publications (1)

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FR2491010A1 true FR2491010A1 (en) 1982-04-02

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FR8020658A Withdrawn FR2491010A1 (en) 1980-09-26 1980-09-26 Rear axle for vehicle - has vehicle reverse drive mounted with differential instead of in gear box

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2621967A1 (en) * 1987-10-20 1989-04-21 Steyr Daimler Puch Ag DIFFERENTIAL WITH CONICAL GEAR WHEELS FOR MOTOR VEHICLE
GB2461749B (en) * 2008-07-14 2012-07-11 Lockheed Corp Vehicle transmission
CN110657217A (en) * 2018-06-29 2020-01-07 上海汽车集团股份有限公司 Vehicle and differential mechanism thereof
EP4265938A1 (en) * 2022-04-19 2023-10-25 Ningbo Geely Automobile Research & Development Co. Ltd. A differential gear arrangement

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2861479A (en) * 1955-11-16 1958-11-25 Gen Motors Corp Driving axle assembly

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2861479A (en) * 1955-11-16 1958-11-25 Gen Motors Corp Driving axle assembly

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2621967A1 (en) * 1987-10-20 1989-04-21 Steyr Daimler Puch Ag DIFFERENTIAL WITH CONICAL GEAR WHEELS FOR MOTOR VEHICLE
GB2461749B (en) * 2008-07-14 2012-07-11 Lockheed Corp Vehicle transmission
CN110657217A (en) * 2018-06-29 2020-01-07 上海汽车集团股份有限公司 Vehicle and differential mechanism thereof
CN110657217B (en) * 2018-06-29 2022-01-25 上海汽车集团股份有限公司 Vehicle and differential mechanism thereof
EP4265938A1 (en) * 2022-04-19 2023-10-25 Ningbo Geely Automobile Research & Development Co. Ltd. A differential gear arrangement
WO2023202347A1 (en) * 2022-04-19 2023-10-26 Zhejiang Geely Holding Group Co., Ltd. A differential gear arrangement

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