WO2015136174A1 - Device and method for sliding gear and clutch-type coupling for gearbox - Google Patents

Device and method for sliding gear and clutch-type coupling for gearbox Download PDF

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Publication number
WO2015136174A1
WO2015136174A1 PCT/FR2015/050393 FR2015050393W WO2015136174A1 WO 2015136174 A1 WO2015136174 A1 WO 2015136174A1 FR 2015050393 W FR2015050393 W FR 2015050393W WO 2015136174 A1 WO2015136174 A1 WO 2015136174A1
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WO
WIPO (PCT)
Prior art keywords
hub
keys
player
gear
coupling device
Prior art date
Application number
PCT/FR2015/050393
Other languages
French (fr)
Inventor
Nicolas Garnier
Original Assignee
Renault S.A.S
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 S.A.S filed Critical Renault S.A.S
Publication of WO2015136174A1 publication Critical patent/WO2015136174A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
    • F16D23/02—Arrangements for synchronisation, also for power-operated clutches
    • F16D23/04—Arrangements for synchronisation, also for power-operated clutches with an additional friction clutch
    • F16D23/06—Arrangements for synchronisation, also for power-operated clutches with an additional friction clutch and a blocking mechanism preventing the engagement of the main clutch prior to synchronisation
    • F16D23/0606—Arrangements for synchronisation, also for power-operated clutches with an additional friction clutch and a blocking mechanism preventing the engagement of the main clutch prior to synchronisation the blocking mechanism comprising an axially-extending shouldered pin passing through a hole in a radial wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
    • F16D23/02—Arrangements for synchronisation, also for power-operated clutches
    • F16D23/04—Arrangements for synchronisation, also for power-operated clutches with an additional friction clutch
    • F16D23/06—Arrangements for synchronisation, also for power-operated clutches with an additional friction clutch and a blocking mechanism preventing the engagement of the main clutch prior to synchronisation
    • F16D2023/0637—Details relating to the hub member on which the sliding is arranged

Definitions

  • the invention is in the field of manual transmissions, automatic or robotic, as well as any type of hybrid transmission equipping land motor vehicles, incorporating a shifter shift system.
  • a clutch coupling device of an idler gear on a gearbox shaft comprising a hub fixed on the pinion shaft, a claw crown integral with the idler gear, and a sliding sleeve. moved by the internal speed control of the box to mechanically link the shaft and pinion in rotation when engaging a gear.
  • Another subject of the invention is a method of coupling a clutch crown integral with an idle gear on a gearbox shaft with a hub fixed to the pinion shaft, with the aid of a shifted sleeve. by the internal speed control of the gearbox to mechanically link the shaft and pinion in rotation when engaging a gear.
  • the hub of a walkman coupling system is generally rotatably connected by internal splines, to external splines of the shaft.
  • the cleats make it possible to ensure shifts and transmission of the engine torque to the wheels of the vehicle. They therefore have two main functions: to allow the engagement of the report without synchronization, and to ensure the passage of the couple without jumps, in gear engaged.
  • the player includes cleats, which engage between the clabots of the crown during coupling. The insertion of the clamshell of the player into those of the pinion, requires to provide sufficient backlash between them, given the differential conditions of rotation of the parts, and the axial speed of the player, when shifting gears.
  • the game allows you to "enter” the first shot, without rebound or return, to bind the rotating parts.
  • the ideal value of the game between the clangs of the pinion and those of the player, depends on the functional constraints of the gearshift. However, the clearance necessary for the "shifting" function is maintained during the further penetration of the cleats, and also when the parts are coupled in rotation.
  • the simple axial clutching of the player on the sprocket ring does not allow to lock fully engaged ratio, so that, from a certain effort of release, the speed can jump.
  • the minimum axial effort to dechramp the player (speed jump) lowers as soon as the player can tilt slightly on its axis, and wear and play appear in the system: shelving edges , matting, "swiveling" of the player around the hub, etc.
  • Anti-release is effective in limiting speed jumps.
  • their realization on the clabots is very restrictive for manufacturing processes, in particular because obtaining parts by sintering becomes difficult, and that the necessary operations of rolling or cutting parts involve significant machine / investment costs. This statement is valid regardless of the type of anti-release, whether with surfaces of flat clabots, or involute circle.
  • the present invention aims to guarantee absolute locking of the sliding gear in engagement, while simplifying the parts to the maximum, and allowing processes for obtaining sintering type, or forming, for all the parts, thanks to their simplified geometry .
  • the hub has at its periphery axial notches supporting keys which rock on both sides of a central position of neutral position under the axial thrust of the player to engage between the clabots of the crown when engaging a speed so as to ensure the transmission of torque between the shaft of the box and the idler gear on the gear engaged.
  • the keys swing around half-cylinder shaped bosses radially projecting at the bottom of the notches of the hub.
  • the device presents:
  • FIG. 1 is an exploded view of the proposed system
  • FIG. 3 shows the arrangement of the keys on the hub
  • FIG. 4 is a detailed view showing the functional areas of the keys
  • Figures 5A to 5D illustrate the operation of the system
  • Figure 6 illustrates a variation of the invention.
  • the proposed system consists essentially of a hub 1, clawed crowns 2, a sliding sleeve 3 and a set of tilting keys 4. It is a clutch coupling device of an idler gear on a gearbox shaft, comprising a hub 1 fixed on the pinion shaft, a crankshaft 2 integral with the idler gear, and a sleeve Walkman 3, moved by the internal speed control of the box to mechanically link the shaft and pinion in rotation when engaging a gear.
  • the sleeve-player 3 has no inner groove. It is centered on the hub 1 by a cylindrical bearing surface 3a, bordered by two lateral bearing ramps 3b.
  • the player can therefore include means for angular indexing on the hub, as in Figure 6. It has an interface 3c with the fork (not shown) actuating the system axially.
  • the interface is in the embodiment described, in the form of a "male” collar 3c, adapted to cooperate with a "female” fork.
  • the lateral ramps 3b visible in FIGS. 1 and 2, make it possible to actuate the keys 4, throughout the engagement / release of the ratio.
  • the hub 1 has internal splines 1a for transmitting the torque to the box shaft carrying the pinion to be chirped. They provide its mechanical connection between the shaft and the hub 1.
  • the hub 1 has at its periphery axial notches lb supporting keys 4 which tilt on both sides of a central position of neutral, under the axial thrust of the player 3 to engage between the clabots 2a of the ring 2 during the engagement of a speed, so as to ensure the transmission of torque between the shaft of the box and the idler gear on the gear engaged.
  • These grooves, or notches lb are formed on the hub 1 to receive the keys 4.
  • the dimples that are found at the bottom of the notches lb, allow the tilting of the keys 4 during the engagement ratio.
  • Each key 4 interacts by tilting during engagement, with the player 3, the hub 1 and the cleats of the crown 2 to lock.
  • FIG. 4 makes it possible to distinguish on the key 4: the support ramps 4a of the player during the engagement of a speed, and the return to neutral,
  • the player 3 moves axially under the action of the fork, driven itself by a internal control of manual or robotic gearbox.
  • the keys 4 turn around the bosses, under the thrust of the ramp 3b of the player.
  • the keys 3 are not yet engaged between the clabots of the crown 2. They are waiting for an angular configuration allowing their commitment.
  • the insertion of the keys the clabots 2a of the crown requires to provide a backlash allowing the keys to enter the first shot without rebound or return to bind the parts together, given the speed differential between the parts in rotation.
  • a spring (not shown as integrated in the internal control of the box) ensures a docking without shock felt.
  • the engagement, or locking phase concludes the passage of the report by a final axial displacement of the player 3 driving the keys angularly between the clabots of the crown 2.
  • the radial position of the player 3 now forbids any return of the keys 4, which are blocked radially and angularly, because their bosses then rest outside the ramp 3b of the player, on its cylindrical portion 3a.
  • the torque is transmitted without risk of skipping reports.
  • the axial end of the walkman at the end of the stroke is achieved either by a mechanical stop on the idle gear, or by the position of the internal control.
  • the essential thing is to guarantee a sufficient recovery of the parts (RI in the figure).
  • the flanks 4b of the keys are always in lateral engagement with the hub 1. They thus ensure the transmission of torque between the clabots and the hub. Unlike known systems, the player provides here only a shift function without transmitting torque. Finally, the return to neutral or the gear change is in the reverse order of the operations described above.
  • a geometry type bossette at the end of the player is also possible in addition, to ensure the irreversibility of the system under torque.
  • the axial size of the device is reduced, and all parts can be obtained by sintering, which allows a global weight gain of the order of 20%.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

The invention relates to a device for sliding gear coupling of an idler gear onto a gearbox shaft. Said device includes: a hub (1) attached onto the shaft of the idler gear; a clutch gear (2) secured to the idler gear; and a sliding gear sleeve (3) moved by the internal speed control of the gearbox, such as to mechanically connect the shaft and the idler gear rotatably when engaging a gear. Said device is characterized in that the hub (1) has, on the periphery thereof, axial notches (1b) holding keys (4) that switch from one side to the other from a central neutral position via the axial thrust of the sliding gear (3) such as to be inserted between the teeth (2a) of the clutch gear (2) when engaging a speed, such as to transmit the torque between the gearbox shaft and the idler gear on the engaged gear.

Description

DISPOSITIF ET PROCEDE DE COUPLAGE A BALADEUR ET A CLABOTS DEVICE AND METHOD FOR COUPLING TO A WALKER AND CLABOTS
POUR BOITE DE VITESSES FOR GEARBOX
L' invention se situe dans le domaine des boîtes de vitesses manuelles, automatiques ou robotisées, ainsi que de tout type de transmission hybride équipant des véhicules terrestres à moteur, intégrant un système de passage de vitesses à clabots. The invention is in the field of manual transmissions, automatic or robotic, as well as any type of hybrid transmission equipping land motor vehicles, incorporating a shifter shift system.
Plus précisément, elle a pour objet un dispositif de couplage à clabots d'un pignon fou sur un arbre de boîte de vitesses, comprenant un moyeu fixé sur l'arbre du pignon, une couronne à clabots solidaire du pignon fou, et un manchon baladeur déplacé par la commande interne de vitesse de la boîte pour lier mécaniquement en rotation l'arbre et le pignon lors de l'engagement d'un rapport.  More specifically, it relates to a clutch coupling device of an idler gear on a gearbox shaft, comprising a hub fixed on the pinion shaft, a claw crown integral with the idler gear, and a sliding sleeve. moved by the internal speed control of the box to mechanically link the shaft and pinion in rotation when engaging a gear.
Cette invention a également pour objet un procédé de couplage d'une couronne à clabots solidaire d'un pignon fou sur un arbre de boîte de vitesses avec un moyeu fixé sur l'arbre du pignon, à l'aide d'un manchon baladeur déplacé par la commande interne de vitesse de la boîte pour lier mécaniquement en rotation l'arbre et le pignon, lors de l'engagement d'un rapport.  Another subject of the invention is a method of coupling a clutch crown integral with an idle gear on a gearbox shaft with a hub fixed to the pinion shaft, with the aid of a shifted sleeve. by the internal speed control of the gearbox to mechanically link the shaft and pinion in rotation when engaging a gear.
Le moyeu d'un système de couplage à baladeur, est généralement lié en rotation par des cannelures internes, à des cannelures externes de l'arbre. Dans tout système de couplage de boîte de vitesses à clabots, les clabots permettent d'assurer les changements de rapports et la transmission du couple moteur vers les roues du véhicule. Ils ont donc deux fonctions principales : permettre l'engagement du rapport sans synchronisation, et assurer le passage du couple sans sauts de vitesses, en rapport engagé . Selon une disposition habituelle, le baladeur intègre des clabots, qui s'engagent entre les clabots de la couronne lors du couplage. L'insertion des clabots du baladeur dans ceux du pignon, nécessite de ménager un jeu de denture suffisant entre eux, compte tenu des conditions de rotation différentielles des pièces, et de la vitesse axiale du baladeur, lors du passage de vitesses. Le jeu permet d' « entrer » du premier coup, sans rebond ni retour, pour lier les pièces en rotation. La valeur idéale du jeu entre les clabots du pignon et ceux du baladeur, dépend des contraintes fonctionnelles du passage de vitesses. Cependant, le jeu nécessaire à la fonction « passage de vitesses » est conservé pendant la poursuite de la pénétration des clabots, et également lorsque les pièces sont couplées en rotation. The hub of a walkman coupling system is generally rotatably connected by internal splines, to external splines of the shaft. In any clutch gearbox coupling system, the cleats make it possible to ensure shifts and transmission of the engine torque to the wheels of the vehicle. They therefore have two main functions: to allow the engagement of the report without synchronization, and to ensure the passage of the couple without jumps, in gear engaged. According to a customary arrangement, the player includes cleats, which engage between the clabots of the crown during coupling. The insertion of the clamshell of the player into those of the pinion, requires to provide sufficient backlash between them, given the differential conditions of rotation of the parts, and the axial speed of the player, when shifting gears. The game allows you to "enter" the first shot, without rebound or return, to bind the rotating parts. The ideal value of the game between the clangs of the pinion and those of the player, depends on the functional constraints of the gearshift. However, the clearance necessary for the "shifting" function is maintained during the further penetration of the cleats, and also when the parts are coupled in rotation.
Mais, le simple crabotage axial du baladeur sur la couronne du pignon, ne permet pas de les verrouiller totalement en rapport engagé, si bien que, à partir d'un certain effort de dégagement, la vitesse peut sauter. L'effort axial minimum pour de dé-craboter le baladeur (saut de vitesse) s'abaisse dès lors que le baladeur peut basculer légèrement sur son axe, et que l'usure et la prise de jeu apparaissent dans le système : rayonnage des arêtes, matage, « rotulage » du baladeur autour du moyeu, etc.  But, the simple axial clutching of the player on the sprocket ring, does not allow to lock fully engaged ratio, so that, from a certain effort of release, the speed can jump. The minimum axial effort to dechramp the player (speed jump) lowers as soon as the player can tilt slightly on its axis, and wear and play appear in the system: shelving edges , matting, "swiveling" of the player around the hub, etc.
Par la publication FR 2 887 604, on connaît un agencement à clabots pour boîte de vitesses à clabots, dans lequel le baladeur et la couronne de clabotage du pignon portent des clabots dont les flancs présentent des contre- dépouilles appelées « anti-lâchers », dont la fonction est d'assurer une conversion du couple en effort axial, et d'éviter ainsi les sauts de vitesses.  By the publication FR 2 887 604, there is known a clutch arrangement for clutch gearbox, in which the player and the clipping crown of the pinion carry clabots whose flanks have undercuts called "anti-release", whose function is to ensure a conversion of the torque in axial force, and thus avoid jumps gears.
Les anti-lâchers sont efficaces pour limiter les sauts de vitesse. Toutefois, leur réalisation sur les clabots est très contraignante pour les processus de fabrication, notamment car l'obtention des pièces par frittage devient difficile, et que les opérations nécessaires de roulage ou de taillage des pièces impliquent des surcoûts machine/investissement importants. Ce constat est valable quel que soit le type d' anti-lâcher, que ce soit avec des surfaces de clabots planes, ou en développante de cercle. Anti-release is effective in limiting speed jumps. However, their realization on the clabots is very restrictive for manufacturing processes, in particular because obtaining parts by sintering becomes difficult, and that the necessary operations of rolling or cutting parts involve significant machine / investment costs. This statement is valid regardless of the type of anti-release, whether with surfaces of flat clabots, or involute circle.
La présente invention vise à garantir un verrouillage absolu du baladeur en rapport engagé, tout en simplifiant les pièces au maximum, et en autorisant des processus d'obtention de type frittage, ou formage, pour l'ensemble des pièces, grâce à leur géométrie simplifiée.  The present invention aims to guarantee absolute locking of the sliding gear in engagement, while simplifying the parts to the maximum, and allowing processes for obtaining sintering type, or forming, for all the parts, thanks to their simplified geometry .
Dans ce but, elle propose que le moyeu présente à sa périphérie des encoches axiales supportant des clavettes qui basculent de part et d'autres d'une position centrale de point mort sous la poussée axiale du baladeur pour s'engager entre les clabots de la couronne lors de l'engagement d'une vitesse de manière à assurer la transmission du couple entre l'arbre de la boîte et le pignon fou sur le rapport engagé.  For this purpose, it proposes that the hub has at its periphery axial notches supporting keys which rock on both sides of a central position of neutral position under the axial thrust of the player to engage between the clabots of the crown when engaging a speed so as to ensure the transmission of torque between the shaft of the box and the idler gear on the gear engaged.
De préférence, les clavettes basculent autour de bossettes en forme de demi-cylindre radialement en saillie au fond des encoches du moyeu.  Preferably, the keys swing around half-cylinder shaped bosses radially projecting at the bottom of the notches of the hub.
En fonctionnement, le dispositif présente :  In operation, the device presents:
une phase de point mort où le baladeur est guidé sur le moyeu par sa portée cylindrique, les clavettes étant centrées sur des bossettes du moyeu, et calées entre des rampes du baladeur,  a dead center phase where the player is guided on the hub by its cylindrical bearing, the keys being centered on bosses of the hub, and wedged between ramps of the walkman,
une phase d' accostage des clabots avec les clavettes, où le baladeur se déplace axialement et les clavettes tournent autour des bossettes, sous la poussée d'une rampe du baladeur, les clavettes n'étant pas encore engagées entre les clabots, et a phase of approach of the clabots with the keys, where the player moves axially and the keys revolve around the dimples, under the thrust a boom of the walkman, the keys not yet being engaged between the clabots, and
une phase d'engagement où un déplacement axial final du baladeur entraine les clavettes angulairement entre les clabots de la couronne.  an engagement phase where a final axial displacement of the player drives the keys angularly between the clabots of the crown.
La présente invention sera mieux comprise à la lecture de la description suivante, d'un mode de réalisation non limitatif de celle-ci, en se reportant aux dessins annexés, sur lesquels :  The present invention will be better understood on reading the following description of a nonlimiting embodiment thereof, with reference to the appended drawings, in which:
- la figure 1 est une vue éclatée du système proposé,  FIG. 1 is an exploded view of the proposed system,
- la figure 2 est une vue séparée du baladeur,  - Figure 2 is a separate view of the player,
- la figure 3 montre l'agencement des clavettes sur le moyeu,  FIG. 3 shows the arrangement of the keys on the hub,
- la figure 4 est une vue de détail montrant les zones fonctionnelles des clavettes,  FIG. 4 is a detailed view showing the functional areas of the keys,
les figures 5A à 5D illustrent le fonctionnement du système, et la figure 6 illustre une variante de 1 ' invention .  Figures 5A to 5D illustrate the operation of the system, and Figure 6 illustrates a variation of the invention.
Le système proposé se compose essentiellement d'un moyeu 1, de couronnes à clabots 2, d'un manchon-baladeur 3 et d'un ensemble de clavettes 4 basculantes. Il s'agit d'un dispositif de couplage à clabots d'un pignon fou sur un arbre de boîte de vitesses, comprenant un moyeu 1 fixé sur l'arbre du pignon, une couronne à clabots 2 solidaire du pignon fou, et un manchon baladeur 3, déplacé par la commande interne de vitesse de la boîte pour lier mécaniquement en rotation l'arbre et le pignon lors de l'engagement d'un rapport. Le manchon-baladeur 3, ne comporte aucune cannelure intérieure. Il est centré sur le moyeu 1 par une portée cylindrique 3a, bordée de deux rampes d'appui latérales 3b. Toutefois, en cas de risque d'usure par l'apparition d'une rotation différentielle par rapport aux clavettes, un indexage angulaire peut s'avérer nécessaire. Sans sortir du cadre de l'invention, le baladeur peut donc comporter des moyens d' indexage angulaire sur le moyeu, comme sur la figure 6. Il possède une interface 3c avec la fourchette (non représentée) actionnant le système axialement. L'interface se présente dans le mode de réalisation décrit, sous la forme une collerette « mâle » 3c, apte à coopérer avec une fourchette « femelle ». Toutefois la disposition inverse (gorge sur le baladeur en vis-à-vis d'une fourchette « mâle ») ne sort pas du cadre de l'invention. Les rampes latérales 3b, visibles sur les figures 1 et 2, permettent d'actionner les clavettes 4, tout au long de 1 ' engagement/dégagement du rapport. Le moyeu 1 possède des cannelures internes la pour transmettre le couple à l'arbre de boîte portant le pignon à claboter. Elles assurent sa liaison mécanique entre l'arbre et le moyeu 1. Le moyeu 1 présente à sa périphérie des encoches axiales lb supportant des clavettes 4 qui basculent de part et d'autres d'une position centrale de point mort, sous la poussée axiale du baladeur 3 pour s'engager entre les clabots 2a de la couronne 2 lors de l'engagement d'une vitesse, de manière à assurer la transmission du couple entre l'arbre de la boîte et le pignon fou sur le rapport engagé. Ces rainures, ou encoches lb, sont donc ménagées sur le moyeu 1 pour recevoir les clavettes 4. Les bossettes le que l'on trouve au fond des encoches lb, permettent le basculement des clavettes 4 au cours de l'engagement du rapport. Leur forme en demi-cylindre facilite le basculement des clavettes 4, qui reposent sur celles-ci. Des écopes de lubrification ld, sont découpées sur les flancs du moyeu 1, pour assurer la lubrification au contact avec les pignons fous ou pièces à verrouiller. Le moyeu peut être massif, conformément aux schémas, ou allégé dans le respect d'un compromis satisfaisant entre sa tenue/rigidité et sa masse. Enfin, la portée cylindrique extérieure du moyeu le, assure le centrage du baladeur. The proposed system consists essentially of a hub 1, clawed crowns 2, a sliding sleeve 3 and a set of tilting keys 4. It is a clutch coupling device of an idler gear on a gearbox shaft, comprising a hub 1 fixed on the pinion shaft, a crankshaft 2 integral with the idler gear, and a sleeve Walkman 3, moved by the internal speed control of the box to mechanically link the shaft and pinion in rotation when engaging a gear. The sleeve-player 3, has no inner groove. It is centered on the hub 1 by a cylindrical bearing surface 3a, bordered by two lateral bearing ramps 3b. However, in case of risk of wear by the appearance of a differential rotation with respect to the keys, angular indexing may be necessary. Without departing from the scope of the invention, the player can therefore include means for angular indexing on the hub, as in Figure 6. It has an interface 3c with the fork (not shown) actuating the system axially. The interface is in the embodiment described, in the form of a "male" collar 3c, adapted to cooperate with a "female" fork. However the opposite arrangement (throat on the player vis-à-vis a "male" fork) is not beyond the scope of the invention. The lateral ramps 3b, visible in FIGS. 1 and 2, make it possible to actuate the keys 4, throughout the engagement / release of the ratio. The hub 1 has internal splines 1a for transmitting the torque to the box shaft carrying the pinion to be chirped. They provide its mechanical connection between the shaft and the hub 1. The hub 1 has at its periphery axial notches lb supporting keys 4 which tilt on both sides of a central position of neutral, under the axial thrust of the player 3 to engage between the clabots 2a of the ring 2 during the engagement of a speed, so as to ensure the transmission of torque between the shaft of the box and the idler gear on the gear engaged. These grooves, or notches lb, are formed on the hub 1 to receive the keys 4. The dimples that are found at the bottom of the notches lb, allow the tilting of the keys 4 during the engagement ratio. Their half-cylinder shape facilitates the tilting of the keys 4, which rest on them. Lubrication scoops ld, are cut on the flanks of the hub 1, to ensure lubrication in contact with the idle gears or parts to lock. The hub can be massive, according to the drawings, or lightened in respect of a satisfactory compromise between its strength / rigidity and its mass. Finally, the outer cylindrical bearing surface of the hub, ensures the centering of the player.
Chaque clavette 4 interagit par basculement lors de l'engagement, avec le baladeur 3, le moyeu 1 et les clabots de la couronne 2 à verrouiller. Le basculement total de la clavette 4, lorsqu'elle vient en butée angulaire avec le fond de dent des clabots, assure le verrouillage de la fonction pour transmettre le couple du moyeu vers la couronne à clabots.  Each key 4 interacts by tilting during engagement, with the player 3, the hub 1 and the cleats of the crown 2 to lock. The total tilting of the key 4, when it comes into angular abutment with the tooth base of the cleats, ensures the locking of the function to transmit the torque of the hub to the crown cleats.
La figure 4 permet de distinguer sur la clavette 4 : les rampes d'appui 4a du baladeur lors de l'engagement d'une vitesse, et du retour au point mort,  FIG. 4 makes it possible to distinguish on the key 4: the support ramps 4a of the player during the engagement of a speed, and the return to neutral,
les flancs de reprise de couple et de guidage angulaire 4b en vis-à-vis du moyeu,  the torque recovery flanks and angular guide 4b vis-à-vis the hub,
- les rampes de centrage 4c autour de la bossette du moyeu, lors du basculement, et  the centering ramps 4c around the boss of the hub, during the tilting, and
- les zones d'accrochage 4d avec les clabots (flanc tirage et flanc rétro) .  - 4d hooking areas with the clabots (draw flank and sidewall).
Au point mort (figure 5B) , le baladeur 3 est guidé sur le moyeu 1 par sa cylindrique 3a. Les clavettes 4 sont centrées sur les bossettes le du moyeu, et calées entre les rampes 3b du baladeur. L'ensemble est maintenu ainsi par équilibrage, et positionné axialement par la fourchette. Il existe un jeu Jl radial entre les clavettes et les clabots, de chaque côté, donc pour chaque rapport. Ce jeu garantit qu'il n'y a aucun contact entre les pièces lorsque le système est au point mort.  In neutral (Figure 5B), the player 3 is guided on the hub 1 by its cylindrical 3a. The keys 4 are centered on the bosses of the hub, and wedged between the ramps 3b of the player. The assembly is thus maintained by balancing, and positioned axially by the fork. There is a game Jl radial between the keys and the clabots, on each side, so for each report. This game ensures that there is no contact between parts when the system is in neutral.
Lors de la phase d' accostage des clabots avec les clavettes (figure 5C) , le baladeur 3 se déplace axialement sous l'action de la fourchette, entraînée elle-même par une commande interne de boite de vitesses manuelle ou robotisée. Les clavettes 4 tournent autour des bossettes le, sous la poussée de la rampe 3b du baladeur. Les clavettes 3 ne sont pas encore engagées entre les clabots de la couronne 2. Elles sont en en attente d'une configuration angulaire autorisant leur engagement. L'insertion des clavettes les clabots 2a de la couronne, nécessite de ménager un jeu de denture permettant, aux clavettes d'entrer du premier coup sans rebond ni retour pour lier les pièces entre-elles, compte tenu de différentiel de vitesse entre les pièces en rotation. Toutefois, un ressort (non représenté car intégré à la commande interne de la boîte) permet de garantir un accostage sans choc ressenti. During the docking phase of the clabots with the keys (Figure 5C), the player 3 moves axially under the action of the fork, driven itself by a internal control of manual or robotic gearbox. The keys 4 turn around the bosses, under the thrust of the ramp 3b of the player. The keys 3 are not yet engaged between the clabots of the crown 2. They are waiting for an angular configuration allowing their commitment. The insertion of the keys the clabots 2a of the crown, requires to provide a backlash allowing the keys to enter the first shot without rebound or return to bind the parts together, given the speed differential between the parts in rotation. However, a spring (not shown as integrated in the internal control of the box) ensures a docking without shock felt.
L'engagement, ou phase de verrouillage (figure 5D) , conclut le passage du rapport par un déplacement axial final du baladeur 3 entraînant les clavettes angulairement entre les clabots de la couronne 2. La position radiale du baladeur 3 interdit désormais tout retour des clavettes 4, qui sont bloquées radialement et angulairement, car leurs bossettes reposent alors hors de la rampe 3b du baladeur, sur sa partie cylindrique 3a. Le couple est transmis sans risque de saut de rapports. La mise en butée axiale du baladeur en fin de course est réalisée, soit par une butée mécanique sur le pignon fou, soit par la position de la commande interne. L'essentiel est de garantir un recouvrement suffisant des pièces (RI sur la figure) . Les flancs 4b des clavettes sont toujours en prise latérale avec le moyeu 1. Elles assurent ainsi la transmission du couple entre les clabots et le moyeu. Contrairement aux systèmes connus, le baladeur n'assure ici qu'une fonction de passage de vitesses sans transmettre de couple. Enfin, le retour au point mort ou le changement de rapport se fait dans l'ordre inverse des opérations décrites précédemment. The engagement, or locking phase (Figure 5D), concludes the passage of the report by a final axial displacement of the player 3 driving the keys angularly between the clabots of the crown 2. The radial position of the player 3 now forbids any return of the keys 4, which are blocked radially and angularly, because their bosses then rest outside the ramp 3b of the player, on its cylindrical portion 3a. The torque is transmitted without risk of skipping reports. The axial end of the walkman at the end of the stroke is achieved either by a mechanical stop on the idle gear, or by the position of the internal control. The essential thing is to guarantee a sufficient recovery of the parts (RI in the figure). The flanks 4b of the keys are always in lateral engagement with the hub 1. They thus ensure the transmission of torque between the clabots and the hub. Unlike known systems, the player provides here only a shift function without transmitting torque. Finally, the return to neutral or the gear change is in the reverse order of the operations described above.
Une géométrie de type bossette à l'extrémité du baladeur, est également envisageable en complément, pour assurer l'irréversibilité du système sous couple.  A geometry type bossette at the end of the player, is also possible in addition, to ensure the irreversibility of the system under torque.
Dans certaines applications, où la position du point mort doit être donnée par le baladeur, on peut prévoir d'ajouter des billages montés dans des trous du moyeu, par exemple trois systèmes de billages 6, répartis à 120° autour du baladeur. Dans cette variante, qui est illustrée par la figure 6, le baladeur 3 présente une gorge intérieure 3f, pour recevoir les billages. Cette disposition est réalisable avec des procédés de frittage et perçages de trous dans le moyeu pour loger ressorts et billes ou cartouche de billage. Sans sortir du cadre de l'invention, il est aussi possible de monter d'autres systèmes d'indexage, du type joncs, ressorts en tôle etc.  In certain applications, where the position of the neutral position must be given by the player, it is possible to add billings mounted in hub holes, for example three billing systems 6, distributed at 120 ° around the player. In this variant, which is illustrated in Figure 6, the player 3 has an inner groove 3f, to receive the shots. This arrangement is feasible with methods of sintering and drilling holes in the hub for housing springs and balls or blasting cartridge. Without departing from the scope of the invention, it is also possible to mount other indexing systems, such as rods, leaf springs, etc.
Les avantages de l'invention sont nombreux :  The advantages of the invention are numerous:
le verrouillage absolu en rapport engagé, supprime tout risque de saut de vitesses,  absolute locking in gear engaged, eliminates any risk of jumps,
la suppression des anti-lâchers sur les clabots facilite la fabrication des pièces,  the elimination of anti-release on the clabots facilitates the manufacture of parts,
l'encombrement axial du dispositif est réduit, et toutes les pièces peuvent être obtenues par frittage, ce qui permet un gain en masse global de l'ordre de 20%.  the axial size of the device is reduced, and all parts can be obtained by sintering, which allows a global weight gain of the order of 20%.

Claims

REVENDICATIONS
1. Dispositif de couplage à clabots d'un pignon fou sur un arbre de boîte de vitesses, comprenant un moyeu (1) fixé sur l'arbre du pignon, une couronne à clabots (2) solidaire du pignon fou, et un manchon baladeur (3) déplacé par la commande interne de vitesse de la boîte pour lier mécaniquement en rotation l'arbre et le pignon lors de l'engagement d'un rapport, caractérisé en ce que le moyeu (1) présente à sa périphérie des encoches axiales (lb) supportant des clavettes (4) qui basculent de part et d'autres d'une position centrale de point mort sous la poussée axiale du baladeur (3) pour s'engager entre les clabots (2a) de la couronne (2) lors de l'engagement d'une vitesse de manière à assurer la transmission du couple entre l'arbre de la boîte et le pignon fou sur le rapport engagé . 1. Clutch coupling device of an idler gear on a transmission shaft, comprising a hub (1) fixed on the pinion shaft, a clutch crown (2) integral with the idler gear, and a sliding sleeve (3) moved by the internal speed control of the gearbox to mechanically link the shaft and pinion in rotation when engaging a gear, characterized in that the hub (1) has at its periphery axial notches (Ib) supporting keys (4) which pivot on both sides of a neutral center position under the axial thrust of the player (3) to engage between the clabots (2a) of the ring (2) when engaging a speed to ensure the transmission of torque between the shaft of the box and the idler gear on the gear engaged.
2. Dispositif de couplage à clabots selon la revendication 1, caractérisé en ce que les clavettes basculent atour de bossettes de (le) en forme de demi- cylindre radialement en saillie au fond des encoches (lb) du moyeu.  2. A claw coupling device according to claim 1, characterized in that the keys swing around dimples of (a) in the form of a half cylinder radially projecting at the bottom of the notches (lb) of the hub.
3. Dispositif de couplage à clabots selon la revendication 1, ou 2, caractérisé en ce que les clavettes (4) présentent des rampes d'appui (4a) du baladeur (3), lors de l'engagement d'une vitesse, et du retour au point mort .  3. claw coupling device according to claim 1 or 2, characterized in that the keys (4) have support ramps (4a) of the player (3), when engaging a speed, and return to neutral.
4. Dispositif de couplage à clabots selon l'une des revendications précédentes, caractérisé en ce que les clavettes (4) présentent des flancs (4b) de reprise de couple et de guidage angulaire vis-à-vis du moyeu (1), qui sont en prise latérale avec celui-ci, pour assurer la transmission du couple entre les clabots (2a) et le moyeu (1) · 4. claw coupling device according to one of the preceding claims, characterized in that the keys (4) have sides (4b) of torque recovery and angular guidance vis-à-vis the hub (1), which are in lateral engagement with this one, to ensure the transmission of torque between the cleats (2a) and the hub (1) ·
5. Dispositif de couplage à clabots selon l'une des revendications précédentes, caractérisé en ce que les clavettes (4) présentent des rampes de centrage (4c) autour de la bossette du moyeu, lors du basculement, et des zones d'accrochage (4d) avec les clabots.  5. claw coupling device according to one of the preceding claims, characterized in that the keys (4) have centering ramps (4c) around the hub boss, during tilting, and latching zones (4c). 4d) with the clabots.
6. Dispositif de couplage à clabots, selon la revendication 5, caractérisé en ce qu'il existe un jeu radial (Jl) entre les clavettes (4) et les clabots (2a) au point mort.  6. claw coupling device according to claim 5, characterized in that there is a radial clearance (Jl) between the keys (4) and the clabots (2a) in neutral.
7. Dispositif de couplage à clabots selon l'une des revendications précédentes, caractérisé en ce que le baladeur (3) ne comporte aucune cannelure intérieure, et en ce qu'il centré sur le moyeu (1) celui-ci par une portée cylindrique (3a) bordée de deux rampes latérales (3b) .  7. claw coupling device according to one of the preceding claims, characterized in that the player (3) has no inner groove, and in that it centered on the hub (1) thereof by a cylindrical seat (3a) bordered by two lateral ramps (3b).
7. Dispositif de couplage à clabots, selon l'une des revendications précédentes, caractérisé en ce qu'il comporte des systèmes de billage (6) montés dans des trous du moyeu ( 1 ) .  7. claw coupling device according to one of the preceding claims, characterized in that it comprises billing systems (6) mounted in holes of the hub (1).
9. Dispositif de couplage à clabots, selon la revendication 8, caractérisé en ce que le baladeur (3) présente une gorge intérieure (3f) , pour recevoir les systèmes de billage (6) .  Clamp coupling device according to claim 8, characterized in that the sliding device (3) has an internal groove (3f) for receiving the blasting systems (6).
10. Procédé de couplage de couplage d'une couronne à clabots (2) solidaire d'un pignon fou (2) sur un arbre de boîte de vitesses avec un moyeu (1) fixé sur l'arbre du pignon à l'aide de clavettes (4) supportées par le moyeu qui basculent sur celui-ci de part et d'autre d'une position centrale, sous la poussée axiale d'un manchon baladeur (3) déplacé par la commande interne de vitesse de la boîte pour lier mécaniquement en rotation l'arbre et le pignon lors de l'engagement d'un rapport, caractérisé en ce qu' il présente les phases suivantes : 10. Coupling coupling method of a clutch crown (2) integral with a idler gear (2) on a gearbox shaft with a hub (1) fixed to the pinion shaft with the aid of wedges (4) supported by the hub which pivot on it on either side of a central position, under the axial thrust of a sliding sleeve (3) moved by the internal speed control of the box to bind mechanically in rotation the tree and the pinion when engaging a report, characterized in that it presents the following phases:
une phase de point mort où le baladeur (3) est guidé sur le moyeu (1) par sa portée cylindrique (3a), les clavettes (4) étant centrées sur des bossettes (le) du moyeu, et calées entre des rampes (3b) du baladeur,  a neutral phase where the player (3) is guided on the hub (1) by its cylindrical bearing (3a), the keys (4) being centered on bosses (1c) of the hub, and wedged between ramps (3b) ) of the player,
une phase d'accostage des clabots (2a) avec les clavettes (4), où le baladeur (3) se déplace axialement et les clavettes (4) tournent autour des bossettes (le) sous la poussée d'une rampe (3b) du baladeur, les clavettes 3 n'étant pas encore engagées entre les clabots (2), et  a docking phase of the clabots (2a) with the keys (4), where the player (3) moves axially and the keys (4) rotate around the bosses (the) under the thrust of a ramp (3b) of the walkman, the keys 3 not yet engaged between the clabots (2), and
une phase d'engagement où le baladeur 3 entraine les clavettes angulairement les entre les clabots (2a) .  an engagement phase where the player 3 drives the keys angularly between the cleats (2a).
PCT/FR2015/050393 2014-03-14 2015-02-18 Device and method for sliding gear and clutch-type coupling for gearbox WO2015136174A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1452125A FR3018571B1 (en) 2014-03-14 2014-03-14 DEVICE AND METHOD FOR COUPLING FOR A BOOM AND CLUTCH FOR A GEARBOX
FR1452125 2014-03-14

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109944870A (en) * 2017-12-21 2019-06-28 北京清大天达光电科技股份有限公司 A kind of idler wheel anti-loose structure
CN110043611A (en) * 2019-05-05 2019-07-23 梅厚凤 A kind of hydraulic clutch gearbox

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2820774A1 (en) * 1978-05-12 1979-11-22 Hurth Masch Zahnrad Carl Synchronising system for vehicle gear change - has synchronising ring with lugs acting in conjunction with inclined surfaces
DE10033763A1 (en) * 2000-07-12 2002-01-24 Schaeffler Waelzlager Ohg Slide sleeve has main body, gear-shift fork guide consisting f attachment with side surfaces
FR2818339A1 (en) * 2000-12-19 2002-06-21 Renault Compact synchronization device for gearbox idler pinions comprises two truncated outer, intermediate and interior synchronization rings interposed between central hub
DE102008045593A1 (en) * 2008-09-03 2010-03-04 Schaeffler Kg Friction body e.g. friction ring, for synchronization unit of transmission of motor vehicle, has friction body material with friction grains and connection material, where friction grains are mixed with connection material
DE202010004770U1 (en) * 2010-04-09 2011-09-02 Hoerbiger Antriebstechnik Gmbh Synchronization unit of a manual transmission

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2820774A1 (en) * 1978-05-12 1979-11-22 Hurth Masch Zahnrad Carl Synchronising system for vehicle gear change - has synchronising ring with lugs acting in conjunction with inclined surfaces
DE10033763A1 (en) * 2000-07-12 2002-01-24 Schaeffler Waelzlager Ohg Slide sleeve has main body, gear-shift fork guide consisting f attachment with side surfaces
FR2818339A1 (en) * 2000-12-19 2002-06-21 Renault Compact synchronization device for gearbox idler pinions comprises two truncated outer, intermediate and interior synchronization rings interposed between central hub
DE102008045593A1 (en) * 2008-09-03 2010-03-04 Schaeffler Kg Friction body e.g. friction ring, for synchronization unit of transmission of motor vehicle, has friction body material with friction grains and connection material, where friction grains are mixed with connection material
DE202010004770U1 (en) * 2010-04-09 2011-09-02 Hoerbiger Antriebstechnik Gmbh Synchronization unit of a manual transmission

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109944870A (en) * 2017-12-21 2019-06-28 北京清大天达光电科技股份有限公司 A kind of idler wheel anti-loose structure
CN109944870B (en) * 2017-12-21 2023-12-29 北京清大天达光电科技股份有限公司 Anti-loosening structure for roller
CN110043611A (en) * 2019-05-05 2019-07-23 梅厚凤 A kind of hydraulic clutch gearbox
CN110043611B (en) * 2019-05-05 2020-11-10 六安永贞匠道机电科技有限公司 Hydraulic clutch gearbox

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