FR2689459A1 - Drive for wheels of vehicle - has auxiliary motors driving trailing wheels by friction - Google Patents
Drive for wheels of vehicle - has auxiliary motors driving trailing wheels by friction Download PDFInfo
- Publication number
- FR2689459A1 FR2689459A1 FR9204213A FR9204213A FR2689459A1 FR 2689459 A1 FR2689459 A1 FR 2689459A1 FR 9204213 A FR9204213 A FR 9204213A FR 9204213 A FR9204213 A FR 9204213A FR 2689459 A1 FR2689459 A1 FR 2689459A1
- Authority
- FR
- France
- Prior art keywords
- drive device
- plate
- crown
- wheel
- carries
- 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.)
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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
- B60K7/00—Disposition of motor in, or adjacent to, traction wheel
- B60K7/0015—Disposition of motor in, or adjacent to, traction wheel the motor being hydraulic
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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
- F16H—GEARING
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
-
- 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
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/043—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel
-
- 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
- B60K17/356—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having fluid or electric motor, for driving one or more wheels
-
- 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
- B60K7/00—Disposition of motor in, or adjacent to, traction wheel
- B60K2007/0038—Disposition of motor in, or adjacent to, traction wheel the motor moving together with the wheel axle
-
- 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
- B60K7/00—Disposition of motor in, or adjacent to, traction wheel
- B60K2007/0061—Disposition of motor in, or adjacent to, traction wheel the motor axle being parallel to the wheel axle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2220/00—Electrical machine types; Structures or applications thereof
- B60L2220/40—Electrical machine applications
- B60L2220/46—Wheel motors, i.e. motor connected to only one wheel
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Braking Arrangements (AREA)
Abstract
Description
DISPOSITIF D'ENTRAINEMENT DES ROUES NON MOTRICES D'UN VéHICULE AUTOMOBll, PAR
COURONNE FLOTTANTE
La présente invention concerne un dispositif d'entraînement auxiliaire débrayable pour roues non motrices de véhicule automobile. L'adaptation de ce dispositif sur les roues non motrices d'un véhicule permet de le transformer de façon temporaire en véhicule à quatre roues motrices, soit à la demande du conducteur, soit de façon imposée par un système de commande intégrant les conditions de déplacement du véhicule. La transformation temporaire d'un véhicule à deux roues motrices en véhicule à quatre roues motrices permet notamment d'augmenter son adhérence, lorsqu'il roule dans des conditions difficiles.DEVICE FOR DRIVING NON-DRIVEN WHEELS OF A MOTOR VEHICLE, PAR
FLOATING CROWN
The present invention relates to a disengageable auxiliary drive device for non-driving wheels of a motor vehicle. The adaptation of this device on the non-driving wheels of a vehicle makes it possible to transform it temporarily into a four-wheel drive vehicle, either at the request of the driver, or in a way imposed by a control system integrating the conditions of movement. of the vehicle. The temporary transformation of a two-wheel drive vehicle into a four-wheel drive vehicle makes it possible in particular to increase its grip when it is driving under difficult conditions.
L'entraînement des roues non motrices d'un véhicule par une transmission hydrostatique est une disposition largement connue. La transmission décrite dans la publication FR 2 200 799 de la demanderesse comprend notamment une pompe principale, des moteurs hydrauliques à cylindrée variable entraînant un mécanisme réducteur de commande des roues et une pompe de gavage. Selon ce dispositif, le mécanisme réducteur est en prise avec la roue par l'intermédiaire d'un engrenage d'entraînement.The drive of the non-driving wheels of a vehicle by a hydrostatic transmission is a widely known arrangement. The transmission described in the publication FR 2 200 799 of the applicant includes in particular a main pump, hydraulic motors with variable displacement driving a reducing mechanism for controlling the wheels and a booster pump. According to this device, the reduction mechanism is engaged with the wheel by means of a drive gear.
La demande de brevet FR 91-04 885 de la demanderesse, non publiée à ce jour, propose d'entraîner les roues non motrices d'un véhicule au moyen de galets, actionnés par un réducteur disposé en sortie d'un moteur auxiliaire, associé à chaque roue. Selon cette demande de brevet, un galet principal entraîné par le moteur auxiliaire transmet le couple d'assistance à la roue. Cette transmission est obtenue, soit par friction directe du galet principal, contre une surface de révolution appartenant à la roue, soit par l'intermédiaire de galets secondaires entraînés par celui-ci. Patent application FR 91-04 885 of the applicant, not published to date, proposes to drive the non-driving wheels of a vehicle by means of rollers, actuated by a reduction gear arranged at the outlet of an associated auxiliary motor. on each wheel. According to this patent application, a main roller driven by the auxiliary motor transmits the assistance torque to the wheel. This transmission is obtained either by direct friction of the main roller against a surface of revolution belonging to the wheel, or by means of secondary rollers driven by the latter.
Dans la pratique, I'efficacité d'une transmission par galets dépend non seulement de la qualité des surfaces de friction mises en jeu, mais également des dimensions relatives des galets, et de la surface de révolution de la roue. Une solution évidente pour augmenter les performances de la transmission consiste donc à augmenter le diamètre ou le nombre des galets. L'adaptation du dispositif d'entraînement sur la roue se heurte alors des problèmes d'encombrement difficilement surmontables. Pour obtenir une transmission du couple particulièrement performante sans augmenter le nombre ou la taille des galets, ni renoncer au principe de l'entraînement par friction, l'invention propose un dispositif d'entraînement particulier, reposant sur la combinaison d'éléments de transmission dentés et non dentés, à l'inténeur de la roue.In practice, the efficiency of a roller transmission depends not only on the quality of the friction surfaces involved, but also on the relative dimensions of the rollers, and on the surface of revolution of the wheel. An obvious solution for increasing the performance of the transmission therefore consists in increasing the diameter or the number of rollers. The adaptation of the drive device on the wheel then encounters problems of size which are difficult to overcome. To obtain a particularly efficient torque transmission without increasing the number or size of the rollers, or renouncing the principle of friction drive, the invention provides a particular drive device, based on the combination of toothed transmission elements and not toothed, inside the wheel.
Elle concerne un dispositif d'entraînement débrayable d'une roue non motrice de vehicule automobile supportée par un bras de suspension solidaire du tambour de frein de la roue, à partir d'un moteur auxiliaire monté sur celle-ci, caractérisé en ce que l'axe du moteur porte un pignon engrenant directement avec un organe de transmission cylindrique pouvant entraîner par friction une surface de révolution appartenant à la roue.It relates to a disengageable drive device for a non-driving wheel of a motor vehicle supported by a suspension arm secured to the brake drum of the wheel, from an auxiliary motor mounted thereon, characterized in that the he axis of the motor carries a pinion meshing directly with a cylindrical transmission member which can frictionally drive a surface of revolution belonging to the wheel.
Selon un mode de réalisation de l'invention, l'organe de transmission cylindrique est une couronne de diamètre légèrement inférieur à celui de la surface de révolution qu'elle entraîne par friction.According to one embodiment of the invention, the cylindrical transmission member is a crown of diameter slightly smaller than that of the surface of revolution which it drives by friction.
Selon un mode de réalisation de l'invention, la couronne porte sur sa face extérieure une garniture de friction, tandis que sa face intérieure présente une denture en prise avec la denture du pignon.According to one embodiment of the invention, the crown carries on its outer face a friction lining, while its inner face has a toothing in engagement with the toothing of the pinion.
Selon un mode de réalisation de l'invention, le moteur, le pignon et la couronne sont portés par une platine, mobile par rapport au tambour de frein. According to one embodiment of the invention, the motor, the pinion and the crown are carried by a plate, movable relative to the brake drum.
Selon un mode de réalisation de l'invention, la platine, porte au moins un galet, assurant le maintien de celle-ci vis-à-vis de la couronne.According to one embodiment of the invention, the plate carries at least one roller, ensuring the maintenance thereof vis-à-vis the crown.
Selon un mode de réalisation de l'invention, le déplacement de la platine par rapport à la surface de révolution est assuré par un vérin solidaire du bras de suspension.According to one embodiment of the invention, the movement of the plate relative to the surface of revolution is ensured by a jack secured to the suspension arm.
Selon un mode de réalisation de l'invention, le vérin est raccordé à une tige de commande, dont l'extrémité porte une rotule engagée au travers de la platine.According to one embodiment of the invention, the jack is connected to a control rod, the end of which carries a ball joint engaged through the plate.
Selon un mode de réalisation de l'invention, le plateau sur lequel est fixé le tambour de frein porte au moins deux bagues engagées au travers de lumières ménagées sur la platine, de façon à pouvoir guider son déplacement par rapport à la roue.According to one embodiment of the invention, the plate on which the brake drum is fixed carries at least two rings engaged through openings made on the plate, so as to be able to guide its movement relative to the wheel.
Selon un mode de réalisation de l'invention, le plateau de frein porte un couvercle d'étanchéité situé à l'intérieur de la couronne, de façon à constituer avec celle-ci, grâce à l'adaptation de joints d'étanchéité toriques, une enceinte étanche refermée autour des dentures du pignon et de la couronne, pouvant être remplie de graisse.According to one embodiment of the invention, the brake plate carries a sealing cover situated inside the crown, so as to constitute with the latter, by virtue of the adaptation of O-ring seals, a sealed enclosure closed around the teeth of the pinion and the crown, which can be filled with grease.
Selon un mode de réalisation de l'invention, les galets de maintien portent contre la couronne, de part et d'autre de sa denture interne.According to one embodiment of the invention, the holding rollers bear against the crown, on either side of its internal toothing.
Selon un mode de réalisation de ltinvention, le moteur est un moteur hydraulique.According to one embodiment of the invention, the motor is a hydraulic motor.
L'invention sera mieux comprise à la lecture de la description suivante d'un mode de réalisation particulier de celle-ci, en liaison avec les dessins annexés sur lesquels - la figure 1 est une coupe verticale transversale d'une roue de
véhicule équipée du dispositif d'entraînement auxiliaire de
l'invention, qui passe approximativement par son axe de rotation, - la figure 2 est une vue latérale de la roue côté extérieur, après
enlèvement du tambour et du plateau de frein, - la figure 3 est une coupe selon A de la figure 2, - la figure 4 est une occupe selon B de la figure 2, - la figure 5 est une coupe selon C de la figure 2.The invention will be better understood on reading the following description of a particular embodiment thereof, in conjunction with the accompanying drawings in which - Figure 1 is a vertical cross section of a wheel
vehicle equipped with the auxiliary drive device
the invention, which passes approximately through its axis of rotation, - Figure 2 is a side view of the wheel on the outside, after
removal of the drum and the brake plate, - Figure 3 is a section along A of Figure 2, - Figure 4 is an occupancy along B of Figure 2, - Figure 5 is a section along C of Figure 2 .
La roue 1 représentée sur la figure 1 comporte de façon classique une jante 2 et un pneu 3 reposant sur le sol 36. Elle est supportée par un bras de suspension 4, intégrant les organes de roulement, moyeu, fusée, porte-fusée, non représentés sur cette figure. A l'extrémité du bras de suspension 4, est articulé l'amortisseur 5 s'étendant vers le haut en direction d'un longeron 6 du châssis. Sur une platine 7 verticale s'étendant le long de la face intérieure de la roue 1, sont montés, d'une part un moteur auxiliaire 8 hydraulique ou non, et d'autre part un pignon 10, dont l'axe 9 traversant la platine 7, est confondu avec l'arbre de sortie du moteur 8. La denture 11 du pignon 10 est en prise avec la denture intérieure 12 d'une couronne 13, dont la surface extérieure est recouverte d'un matériau semirigide 14 à fort coefficient de frottement. Dans la partie inférieure de Ia figure 1, la couronne 13 porte, par l'intermédiaire de la bande de friction 14, contre un flasque 15 prolongeant le tambour de frein 16, qui repose sur un plateau de frein 17, immobile par rapport au bras de suspension 4. Un couvercle d'étanchéité 18, supporté par le plateau de frein 17 et situé à l'intérieur du périmètre de la couronne 13, constitue avec celle-ci une enceinte 19 refermée autour du pignon 10. Cette enceinte 19, rendue étanche grâce aux deux joints toriques d'étanchéité 20 et 21 et au joint 22 situé autour de l'axe 9 du pignon 10, permet de confiner de la graisse autour du pignon 10, de la denture intérieure 12, et de la couronne 13. Enfin, le joint torique 23 et le joint à lèvre 24 évitent toute intrusion de particules ou de liquides extérieurs, entre le flasque 15 et la couronne 13, de façon à assurer la propreté des surfaces de frottement 14 et 15, et à garantir un coefficient de frottement élevé entre ces deux éléments.The wheel 1 shown in FIG. 1 conventionally comprises a rim 2 and a tire 3 resting on the ground 36. It is supported by a suspension arm 4, integrating the running gear, hub, stub axle, stub axle holder, not shown in this figure. At the end of the suspension arm 4, the shock absorber 5 is articulated extending upwards in the direction of a side member 6 of the chassis. On a vertical plate 7 extending along the inner face of the wheel 1, are mounted, on the one hand an auxiliary motor 8 hydraulic or not, and on the other hand a pinion 10, whose axis 9 crossing the plate 7, coincides with the output shaft of the motor 8. The toothing 11 of the pinion 10 is in engagement with the internal toothing 12 of a crown 13, the outer surface of which is covered with a semi-rigid material 14 with a high coefficient friction. In the lower part of FIG. 1, the ring 13 carries, by means of the friction band 14, against a flange 15 extending the brake drum 16, which rests on a brake plate 17, stationary relative to the arm suspension 4. A sealing cover 18, supported by the brake plate 17 and situated inside the perimeter of the crown 13, constitutes with the latter an enclosure 19 closed around the pinion 10. This enclosure 19, rendered leaktight thanks to the two O-ring seals 20 and 21 and to the seal 22 located around the axis 9 of the pinion 10, makes it possible to confine grease around the pinion 10, the internal toothing 12, and the crown 13. Finally, the O-ring 23 and the lip seal 24 prevent any intrusion of particles or external liquids, between the flange 15 and the crown 13, so as to ensure the cleanliness of the friction surfaces 14 and 15, and to guarantee a coefficient of high friction between these two elements.
Sur la figure 2, on retrouve, en avant du bras de suspension 4, de l'amortisseur 5 et du moteur 8, la platine 7, quatre bagues 25 portées par le plateau frein 17, non représenté sur cette figure. Selon le mode de réalisation particulier de l'invention illustré par la figure 2, les bagues 25 sont au nombre de quatre. Bien entendu, il est possible d'en prévoir un nombre différent sans sortir du cadre de l'invention.In Figure 2, there are, in front of the suspension arm 4, the damper 5 and the motor 8, the plate 7, four rings 25 carried by the brake plate 17, not shown in this figure. According to the particular embodiment of the invention illustrated in FIG. 2, the rings 25 are four in number. Of course, it is possible to provide a different number without departing from the scope of the invention.
Ces bagues 25 sont engagées au travers de lumières oblongues 26 ménagées dans la platine 7. Elles autorisent un déplacement relatif de l'ensemble platine 7 - couronne 13, par rapport au flasque 15. Un vérin hydraulique 27 est retenu dans une chape 28 solidaire du bras de suspension 4. Le vérin hydraulique 27 assure le déplacement vertical de l'ensemble platine 7 - couronne 13, vis-à-vis du flasque 15. Sur la figure 2, on reconnaît encore le pignon moteur 10 porté par la platine 7. La denture 11 du pignon 10 est en prise avec la denture intérieure 12 de la couronne 13. Conformément à la figure 1, la bande de friction extérieure 14 de la couronne 13 est en contact avec le flasque 15 dans la partie inférieure de celui-ci.These rings 25 are engaged through oblong slots 26 formed in the plate 7. They allow relative movement of the plate 7 - crown 13 assembly, relative to the flange 15. A hydraulic cylinder 27 is retained in a yoke 28 integral with the suspension arm 4. The hydraulic cylinder 27 ensures the vertical displacement of the plate 7 - crown 13 assembly, opposite the flange 15. In FIG. 2, the drive pinion 10 carried by the plate 7 can still be recognized. The toothing 11 of the pinion 10 is in engagement with the internal toothing 12 of the crown 13. In accordance with FIG. 1, the external friction band 14 of the crown 13 is in contact with the flange 15 in the lower part of the latter. .
La coupe de la figure 3 traverse longitudinalement l'axe 30 d'un galet de maintien 29. L'axe 30 est fixé par un écrou 31 sur la platine 7. Chaque galet 29 porte sur l'intérieur de la couronne 13, de part et d'autre de sa denture 12. Au niveau de la coupe selon A, la bande de friction 14 est décollée du flasque 15. Par ailleurs, conformément à la figure 1, le couvercle d'étanchéité 18 forme avec la couronne 13 une enceinte rendue étanche par les joints toriques 20, 21, 23, 24.The section of FIG. 3 crosses longitudinally the axis 30 of a retaining roller 29. The axis 30 is fixed by a nut 31 on the plate 7. Each roller 29 bears on the inside of the crown 13, in part and other of its teeth 12. At the level of the section along A, the friction strip 14 is detached from the flange 15. Furthermore, in accordance with FIG. 1, the sealing cover 18 forms with the crown 13 an enclosure sealed by O-rings 20, 21, 23, 24.
La coupe de la figure 4 ne passe ni par le pignon 10, ni par l'un des galets 29. En revanche, elle traverse longitudinalement une des bagues 25, et le goujon 33 sur lequel elle est fixée par un écrou 32. The section of FIG. 4 passes neither through the pinion 10, nor through one of the rollers 29. On the other hand, it crosses longitudinally one of the rings 25, and the stud 33 on which it is fixed by a nut 32.
Le goujon 33 est fixé sur le plateau de frein 17. On reconnaît également les joints toriques 20, 21, 24 mentionnés plus haut.The stud 33 is fixed to the brake plate 17. We also recognize the O-rings 20, 21, 24 mentioned above.
Conformément à la figure 2, au niveau de la coupe selon B, la garniture de friction 14 de la couronne 13 est décollée du flasque 15.According to FIG. 2, at the level of the section along B, the friction lining 14 of the crown 13 is detached from the flange 15.
La figure 5 met en évidence la position du vérin hydraulique 27 visà-vis de la platine 7, et de sa chape 34 de maintien sur le bras de suspension 4. La tige de commande 33, fixée à l'extrémité de la tige 27' du vérin 27, porte à son extrémité une rotule 34, engagée au travers d'un orifice 35 de la platine 7. L'extension ou la rétraction de la tige 27' du vérin 27 déplacent verticalement la platine 7, par l'intermédiaire de la tige de commande 33 et de la rotule 35, de façon à embrayer ou débrayer le dispositif d'entraînement.Figure 5 highlights the position of the hydraulic cylinder 27 vis-à-vis the plate 7, and its yoke 34 for holding on the suspension arm 4. The control rod 33, fixed to the end of the rod 27 ' of the jack 27, carries at its end a ball joint 34, engaged through an orifice 35 of the plate 7. The extension or retraction of the rod 27 ′ of the jack 27 vertically displaces the plate 7, by means of the control rod 33 and the ball joint 35, so as to engage or disengage the drive device.
Le fonctionnement de ce dispositif est le suivant. Lorsque l'assistance du moteur auxiliaire 8, au déplacement de la roue 1 n'est ni souhaitée ni imposée, la tige 27' du vérin 27 est rétractée. Le galet 35 soulève la platine 7 vers le haut. Ce soulèvement est guidé par le déplacement des lumières 26 de la platine 7, vis-à-vis des bagues 25 solidaires du plateau de frein 17. En position débrayée, la couronne 13, soulevée simultanément à Ia platine 7 est totalement dégagée de la surface de révolution constituée par l'intérieur du flasque 15. Si le moteur 8 tourne, la couronne 13, entraînée par le pignon denté 10, tourne sans entraîner le flasque 15. En revanche, une extension de la tige 27' du vérin 27 fait porter la zone inférieure de la bande de friction 14 avec le flasque 15. La couronne 13, garnie de sa bande de friction 14 constitue un organe d'entraînement cylindrique de diamètre légèrement inférieur à la surface de révolution 15 qu'il entraîne par friction. L'effort du vérin hydraulique 27 établit un contact de friction suffisant entre ces deux éléments, le dispositif est embrayé. The operation of this device is as follows. When the assistance of the auxiliary motor 8, to the movement of the wheel 1 is neither desired nor imposed, the rod 27 'of the jack 27 is retracted. The roller 35 lifts the plate 7 upwards. This lifting is guided by the movement of the lights 26 of the plate 7, vis-à-vis the rings 25 secured to the brake plate 17. In the disengaged position, the crown 13, raised simultaneously with the plate 7 is completely released from the surface. of revolution formed by the inside of the flange 15. If the motor 8 rotates, the crown 13, driven by the toothed pinion 10, rotates without driving the flange 15. On the other hand, an extension of the rod 27 ′ of the jack 27 the lower zone of the friction strip 14 with the flange 15. The crown 13, furnished with its friction strip 14 constitutes a cylindrical drive member with a diameter slightly less than the surface of revolution 15 which it drives by friction. The force of the hydraulic cylinder 27 establishes a sufficient friction contact between these two elements, the device is engaged.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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FR9204213A FR2689459A1 (en) | 1992-04-07 | 1992-04-07 | Drive for wheels of vehicle - has auxiliary motors driving trailing wheels by friction |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9204213A FR2689459A1 (en) | 1992-04-07 | 1992-04-07 | Drive for wheels of vehicle - has auxiliary motors driving trailing wheels by friction |
Publications (1)
Publication Number | Publication Date |
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FR2689459A1 true FR2689459A1 (en) | 1993-10-08 |
Family
ID=9428564
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9204213A Withdrawn FR2689459A1 (en) | 1992-04-07 | 1992-04-07 | Drive for wheels of vehicle - has auxiliary motors driving trailing wheels by friction |
Country Status (1)
Country | Link |
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FR (1) | FR2689459A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011079947A1 (en) * | 2009-12-29 | 2011-07-07 | Josef Brettmeister | Starting assistance system and components thereof |
DE102016118243A1 (en) | 2016-09-27 | 2018-03-29 | Mitsuba Corporation | Transmission for a wheel hub motor, drive device and drive system |
WO2022208128A1 (en) * | 2021-03-29 | 2022-10-06 | Роман ШТЫЛЕВСКИЙ | Hydraulic drive for the driven wheels of a motor vehicle |
Citations (5)
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DE593161C (en) * | 1934-02-22 | Axel Ahlfors K | Friction gears | |
US3487428A (en) * | 1968-03-15 | 1969-12-30 | Herbert A Lowther | Friction drive transmission |
GB1361645A (en) * | 1972-12-15 | 1974-07-30 | Rolls Royce | Transmissions |
FR2316487A1 (en) * | 1975-06-30 | 1977-01-28 | Jouot Pierre | Independent wheel drive for tractors - uses flexible tyred wheel to drive inside surface of drum fixed to road wheel |
DE2711214A1 (en) * | 1977-03-15 | 1979-01-25 | Josef Dipl Ing Koza | Auxiliary drive for non-driven wheels of motor vehicle - has low speed hydraulic motor with drive gears of metal, plastics or hard rubber |
-
1992
- 1992-04-07 FR FR9204213A patent/FR2689459A1/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE593161C (en) * | 1934-02-22 | Axel Ahlfors K | Friction gears | |
US3487428A (en) * | 1968-03-15 | 1969-12-30 | Herbert A Lowther | Friction drive transmission |
GB1361645A (en) * | 1972-12-15 | 1974-07-30 | Rolls Royce | Transmissions |
FR2316487A1 (en) * | 1975-06-30 | 1977-01-28 | Jouot Pierre | Independent wheel drive for tractors - uses flexible tyred wheel to drive inside surface of drum fixed to road wheel |
DE2711214A1 (en) * | 1977-03-15 | 1979-01-25 | Josef Dipl Ing Koza | Auxiliary drive for non-driven wheels of motor vehicle - has low speed hydraulic motor with drive gears of metal, plastics or hard rubber |
Non-Patent Citations (1)
Title |
---|
GB-A-N6632 (SCHOEDELIN) * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011079947A1 (en) * | 2009-12-29 | 2011-07-07 | Josef Brettmeister | Starting assistance system and components thereof |
DE102016118243A1 (en) | 2016-09-27 | 2018-03-29 | Mitsuba Corporation | Transmission for a wheel hub motor, drive device and drive system |
WO2022208128A1 (en) * | 2021-03-29 | 2022-10-06 | Роман ШТЫЛЕВСКИЙ | Hydraulic drive for the driven wheels of a motor vehicle |
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