WO2015144999A1 - Fluid-pressure distribution tube device mounted inside a transmission shaft - Google Patents

Fluid-pressure distribution tube device mounted inside a transmission shaft Download PDF

Info

Publication number
WO2015144999A1
WO2015144999A1 PCT/FR2015/050368 FR2015050368W WO2015144999A1 WO 2015144999 A1 WO2015144999 A1 WO 2015144999A1 FR 2015050368 W FR2015050368 W FR 2015050368W WO 2015144999 A1 WO2015144999 A1 WO 2015144999A1
Authority
WO
WIPO (PCT)
Prior art keywords
tube
grooves
wall
transmission shaft
distributor
Prior art date
Application number
PCT/FR2015/050368
Other languages
French (fr)
Inventor
Jerome Delaporte
Original Assignee
Peugeot Citroen Automobiles Sa
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 Peugeot Citroen Automobiles Sa filed Critical Peugeot Citroen Automobiles Sa
Priority to CN201580016615.6A priority Critical patent/CN106164538B/en
Priority to EP15709718.9A priority patent/EP3123058A1/en
Publication of WO2015144999A1 publication Critical patent/WO2015144999A1/en

Links

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
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/042—Guidance of lubricant
    • F16H57/043—Guidance of lubricant within rotary parts, e.g. axial channels or radial openings in shafts

Definitions

  • the invention relates to a fluid pressure distributor tube device mounted inside a transmission shaft, for a continuously variable transmission system of a motor vehicle, particularly but not exclusively to a gearbox automatic or to a mechanical gearbox with hydraulic actuator.
  • the invention also relates to a method of manufacturing such a dispenser tube device.
  • a motor vehicle which comprises at least one such fluidic pressure distributor device.
  • the hydraulic pressure distributor tube mounted in a mechanical transmission shaft carries or includes the housing in the form of grooves intended to receive the Seals between the tube and the shaft result in a relatively complex tube shape and, therefore, a relatively expensive tube. If one wants to keep a simple shape, economic, to the distributor tube, it is then necessary to postpone on the bore of the transmission shaft the formation of these housing in the form of grooves, which also leads to a relatively expensive solution .
  • a hose assembly or flexible connector which comprises at least one tubular portion made by hydroforming for fixing a locking mechanism.
  • the so-called "hydroforming" process is known per se.
  • a hydroforming process is known in which a hollow metal part contained in a matrix is deformed.
  • the matrix has an inner shape that corresponds to the shape of the part to be obtained.
  • the hollow metal part is deformed under the action of the pressure of an incompressible liquid which is confined to it.
  • Means which come into direct contact with the ends of the tube and provide, on the one hand, the sealed closure of the open ends of the hollow metal piece, and on the other hand, pressurizing the liquid that is confined in the latter.
  • These means are likely to evolve at different speeds and may consist of pushers coming into direct contact with the ends of the tube, which pushers are driven by a relative movement of approach.
  • the sealing of the hollow metal piece is by matting and hardening of the open ends of the piece in contact with the pushers.
  • the object of the present invention is to provide a fluid pressure distributor tube device mounted inside a transmission shaft, intended in particular for a continuously variable transmission system or an automatic gearbox. or semi-automatic motor vehicle, which avoids a manufacture of the dispensing tube by machining by removal of material, too expensive process and source of fracture primers on thin thickness of the distributor tube.
  • Another object of the present invention is to provide such a distributor tube device, which is of simple design and construction, which is reliable and economical, in particular by making it easier to achieve the tube sealing means, that is to say the support means of the seals mounted between the distributor tube and the transmission shaft.
  • the present invention relates to a fluid pressure distributor tube device mounted within a transmission shaft. Seals are provided between the outer wall of the distributor tube and the bore of the transmission shaft within which the tube is mounted.
  • the distributor tube is provided on its outer wall grooves for receiving each a seal.
  • the grooves are made "monobloc" with the distributor tube and by deformation of the parts of the tube wall comprising the grooves. According to a preferred embodiment of the invention, this deformation has, for each groove, the shape of two external radial peripheral extensions of the outer wall of the tube, axially distant, between which is formed the surface of the groove intended to receive a seal.
  • the dispensing tube may be made of one of the following materials: steel, steel alloy, aluminum, aluminum alloy. [001 1]
  • the surfaces of the grooves for receiving the seals have a section substantially in a circular arc, and the seals are advantageously toric type seals.
  • the device is a hydraulic pressure distribution tube of automatic or semi-automatic transmission of a motor vehicle.
  • the aforementioned deformation of the parts of the outer wall of the tube to achieve the grooves for receiving seals is obtained by a hydroforming process.
  • This hydroforming process may be a hydroforming method with fixed matrices, or a hydroforming method with moving matrices.
  • the present invention also relates to a motor vehicle, which comprises a hydraulic automatic or semi-automatic gearbox, wherein the hydraulic pressure distributor device mounted in the transmission shaft is in accordance with the device dispenser tube described above in outline.
  • FIG. 1 is a schematic longitudinal sectional view of the fluid pressure distributor tube device mounted in a cylindrical bore shaft according to the present invention
  • FIG. 2 is a longitudinal sectional view, schematic also enlarged, showing a radial housing formed in the distributor tube for receiving an O-ring seal between said tube and the cylindrical bore in which the distributor tube is mounted.
  • this tube 10, of axis XX ' is the hydraulic distribution tube of an automatic transmission of a motor vehicle or of a mechanical gearbox with hydraulic control of a motor vehicle.
  • the arrows P of Figure 1 illustrate the arrival of hydraulic pressure (oil) in the device.
  • the reference 40 designates an oil inlet bushing and the reference 50 a support bearing of the transmission shaft 20.
  • Seals collective reference 30, are provided between the outer wall 1 1 of the distributor tube 10 and the bore 21 of the shaft 20.
  • the seals 30 are carried by radial housings in the form of "grooves" of collective reference 12. These grooves 12 of seal 30 are made “monobloc” with the distributor tube 10, by deformation of parts of the wall of the tube 10 comprising the grooves 12.
  • this deformation of the cylindrical wall of the tube 10 in the region of the grooves 12 has the form of two external radial peripheral extensions, designated by the references 13 and 14. These two extensions 13 and 14 are spaced axially by a distance "d" between which is formed the surface 15 substantially in the form of an arc of the groove 12 intended to receive a seal 30.
  • this deformation of the wall of the distributor tube 10 is performed by a so-called “hydroforming” process, of a type known per se.
  • Hydroforming is a manufacturing process by plastic deformation of small thickness parts, such as plates or tubes.
  • the initial shape of the piece is defined by a mold called "matrix".
  • matrix Unlike stamping, there is no complementary matrix hydroforming in this process, which is replaced by a fluid under high pressure which forces the part to take the shape of the imprint of the matrix.
  • the use of a fluid under pressure makes it possible to apply a force in areas that are difficult to access, or even inaccessible, by conventional means.
  • the materials used for this process are very diverse but have an essential feature in common: their elastic range is as small as possible to avoid too much springback when the pressure of the fluid is released.
  • hydroforming aluminum alloys specific steel alloys, in particular.
  • the hydroforming process is essentially used in aeronautics. He also knows an application in the manufacture of frames of aluminum bicycles. Finally, it is known for manufacturing some structural vehicle parts, chassis or cradle type, sheet metal, and this process allows for complex shapes in large series, limiting the cost of production.
  • the hydroforming process used for the manufacture of the distributor tube 10 may be a so-called "fixed matrix” process, in which only the pressurization of the pressurized fluid contributes to obtaining the final form, or else alternatively, a so-called “moving matrix” method, in which different matrices complete the deformation once it has been initiated by the pressure of said hydroformed pressure fluid.
  • the shape of the groove 12 may vary depending on the chosen sealing technology, particularly depending on the shape of the seal 30 (segment, O-ring, flat seal, etc.). .
  • the embodiment of the distributor tube 19 by hydroforming allows to integrate the grooves 12 for receiving seals 30.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

The invention relates to a distribution tube (10) device for distributing fluid pressures (P1, P2), which is mounted inside a transmission shaft (20). Sealing gaskets (30) are provided between the outer wall (11) of the distribution tube (10) and the bore (21) of the transmission shaft (20), inside of which the distribution tube (10) is mounted. The distribution tube (10) is provided on the outer wall (11) thereof with grooves intended for each receiving a sealing gasket (30). The grooves are formed "integrally" with the distribution tube (10) and by deforming the wall portions of the distribution tube (10) including the grooves.

Description

DISPOSITIF DE TUBE DISTRIBUTEUR DE PRESSIONS FLUIDIQUES MONTE A L'INTERIEUR D'UN ARBRE DE  FLUID PRESSURE DISTRIBUTOR TUBE DEVICE MOUNTED INSIDE A TREE OF
TRANSMISSION.  TRANSMISSION.
[0001 ] L'invention concerne un dispositif de tube distributeur de pressions fluidiques monté à l'intérieur d'un arbre de transmission, destiné à un système de transmission à variation continue de véhicule automobile, en particulier mais non exclusivement à une boîte de vitesses automatique ou bien à une boîte de vitesses mécanique avec actionneur hydraulique. L'invention concerne aussi un procédé de fabrication d'un tel dispositif de tube distributeur. Elle concerne enfin un véhicule automobile, qui comporte au moins un tel dispositif de tube distributeur de pressions fluidiques. The invention relates to a fluid pressure distributor tube device mounted inside a transmission shaft, for a continuously variable transmission system of a motor vehicle, particularly but not exclusively to a gearbox automatic or to a mechanical gearbox with hydraulic actuator. The invention also relates to a method of manufacturing such a dispenser tube device. Finally, it relates to a motor vehicle, which comprises at least one such fluidic pressure distributor device.
[0002] A titre d'exemple, dans une boîte de vitesses automatique à commande hydraulique de véhicule automobile, si le tube distributeur de pressions hydrauliques monté fixe dans un arbre de transmission mécanique porte ou inclut les logements en forme de gorges destinés à recevoir les joints d'étanchéité entre le tube et l'arbre, il en résulte une forme relativement complexe du tube et, par conséquent, un tube relativement coûteux. Si l'on veut garder une forme simple, économique, au tube distributeur, il faut alors reporter sur l'alésage de l'arbre de transmission la formation de ces logements en forme de gorges, ce qui conduit là aussi à une solution relativement coûteuse. By way of example, in an automatic gearbox with hydraulic control of a motor vehicle, if the hydraulic pressure distributor tube mounted in a mechanical transmission shaft carries or includes the housing in the form of grooves intended to receive the Seals between the tube and the shaft result in a relatively complex tube shape and, therefore, a relatively expensive tube. If one wants to keep a simple shape, economic, to the distributor tube, it is then necessary to postpone on the bore of the transmission shaft the formation of these housing in the form of grooves, which also leads to a relatively expensive solution .
[0003] Il y a donc nécessité de rechercher une nouvelle conception de dispositif de tube distributeur et une solution technique de réalisation de ce dispositif avec un coût mieux maîtrisé. [0003] There is therefore a need to search for a new dispenser tube device design and a technical solution for producing this device with a better controlled cost.
[0004] On connaît, selon le document WO 99/35432, un assemblage de tuyau ou raccord flexible, qui comprend au moins une portion tubulaire réalisée par hydroformage pour la fixation d'un mécanisme de blocage. [0005] Le procédé dit « d'hydroformage » est connu en soi. Ainsi, on connaît, selon le document FR 2 679 159, un procédé d'hydroformage, dans lequel on déforme une pièce métallique creuse contenue dans une matrice. La matrice présente une forme intérieure qui correspond à la forme de la pièce à obtenir. La pièce métallique creuse est déformée sous l'action de la pression d'un liquide incompressible qui s'y trouve confiné. Des moyens sont prévus qui entrent en contact direct avec les extrémités du tube et assurent, d'une part, la fermeture étanche des extrémités ouvertes de la pièce métallique creuse, et d'autre part, la mise sous pression du liquide qui se trouve confiné dans cette dernière. Ces moyens sont susceptibles d'évoluer à des vitesses différentes et peuvent consister en des poussoirs entrant en contact direct avec les extrémités du tube, lesquels poussoirs étant animés d'un mouvement relatif de rapprochement. La fermeture étanche de la pièce métallique creuse se fait par matage et écrouissage des extrémités ouvertes de la pièce au contact des poussoirs. It is known, according to WO 99/35432, a hose assembly or flexible connector, which comprises at least one tubular portion made by hydroforming for fixing a locking mechanism. The so-called "hydroforming" process is known per se. Thus, according to the document FR 2 679 159, a hydroforming process is known in which a hollow metal part contained in a matrix is deformed. The matrix has an inner shape that corresponds to the shape of the part to be obtained. The hollow metal part is deformed under the action of the pressure of an incompressible liquid which is confined to it. Means are provided which come into direct contact with the ends of the tube and provide, on the one hand, the sealed closure of the open ends of the hollow metal piece, and on the other hand, pressurizing the liquid that is confined in the latter. These means are likely to evolve at different speeds and may consist of pushers coming into direct contact with the ends of the tube, which pushers are driven by a relative movement of approach. The sealing of the hollow metal piece is by matting and hardening of the open ends of the piece in contact with the pushers.
[0006] Le but de la présente invention est de fournir un dispositif de tube distributeur de pressions fluidiques monté à l'intérieur d'un arbre de transmission, destiné en particulier à un système de transmission à variation continue ou à une boîte de vitesses automatique ou semi automatique de véhicule automobile, qui permette d'éviter une fabrication du tube distributeur par usinage par enlèvement de matière, procédé trop onéreux et source d'amorces de rupture sur des épaisseurs fines du tube distributeur. The object of the present invention is to provide a fluid pressure distributor tube device mounted inside a transmission shaft, intended in particular for a continuously variable transmission system or an automatic gearbox. or semi-automatic motor vehicle, which avoids a manufacture of the dispensing tube by machining by removal of material, too expensive process and source of fracture primers on thin thickness of the distributor tube.
[0007] Un autre but de la présente invention est de fournir un tel dispositif de tube distributeur, qui soit de conception et de réalisation simples, qui soit fiable et économique, notamment en permettant de réaliser plus facilement les moyens d'étanchéité du tube, c'est-à-dire les moyens de support des joints d'étanchéité montés entre le tube distributeur et l'arbre de transmission. Another object of the present invention is to provide such a distributor tube device, which is of simple design and construction, which is reliable and economical, in particular by making it easier to achieve the tube sealing means, that is to say the support means of the seals mounted between the distributor tube and the transmission shaft.
[0008] Pour parvenir à ces buts, la présente invention a pour objet un dispositif de tube distributeur de pressions fluidiques monté à l'intérieur d'un arbre de transmission. Des joints d'étanchéité sont prévus entre la paroi externe du tube distributeur et l'alésage de l'arbre de transmission à l'intérieur duquel est monté le tube. Le tube distributeur est pourvu sur sa paroi externe de gorges destinées à recevoir chacune un joint d'étanchéité. Les gorges sont réalisées « monobloc » avec le tube distributeur et par déformation des parties de la paroi du tube comprenant les gorges. [0009] Selon un mode préféré de réalisation de l'invention, cette déformation présente, pour chaque gorge, la forme de deux extensions périphériques radiales externes de la paroi externe du tube, distantes axialement, entre lesquelles est réalisée la surface de la gorge destinée à recevoir un joint d'étanchéité. To achieve these aims, the present invention relates to a fluid pressure distributor tube device mounted within a transmission shaft. Seals are provided between the outer wall of the distributor tube and the bore of the transmission shaft within which the tube is mounted. The distributor tube is provided on its outer wall grooves for receiving each a seal. The grooves are made "monobloc" with the distributor tube and by deformation of the parts of the tube wall comprising the grooves. According to a preferred embodiment of the invention, this deformation has, for each groove, the shape of two external radial peripheral extensions of the outer wall of the tube, axially distant, between which is formed the surface of the groove intended to receive a seal.
[0010] Le tube distributeur peut être réalisé dans l'un des matériaux suivants : acier, alliage d'acier, aluminium, alliage d'aluminium. [001 1 ] Avantageusement, les surfaces des gorges destinées à recevoir les joints d'étanchéité présentent une section sensiblement en arc de cercle, et les joints d'étanchéité sont avantageusement des joints de type torique. The dispensing tube may be made of one of the following materials: steel, steel alloy, aluminum, aluminum alloy. [001 1] Advantageously, the surfaces of the grooves for receiving the seals have a section substantially in a circular arc, and the seals are advantageously toric type seals.
[0012] A titre d'exemple d'application non limitatif de l'objet et de la portée de la présente invention, le dispositif est un tube de distribution de pressions hydrauliques de boîte de vitesses automatique ou semi-automatique de véhicule automobile. As an example of non-limiting application of the object and the scope of the present invention, the device is a hydraulic pressure distribution tube of automatic or semi-automatic transmission of a motor vehicle.
[0013] De manière préférentielle, et selon le principe de la présente invention, la déformation précitée des parties de la paroi externe du tube pour réaliser les gorges de réception des joints d'étanchéité est obtenue par un procédé d'hydroformage. [0014] Ce procédé d'hydroformage peut être un procédé d'hydroformage à matrices fixes, ou bien un procédé d'hydroformage à matrices mobiles. Preferably, and according to the principle of the present invention, the aforementioned deformation of the parts of the outer wall of the tube to achieve the grooves for receiving seals is obtained by a hydroforming process. This hydroforming process may be a hydroforming method with fixed matrices, or a hydroforming method with moving matrices.
[0015] La présente invention a aussi pour objet un véhicule automobile, qui comporte une boîte de vitesses automatique ou semi automatique à commande hydraulique, dans laquelle le dispositif de tube distributeur de pressions hydrauliques monté fixe dans l'arbre de transmission est conforme au dispositif de tube de distributeur décrit ci-dessus dans ses grandes lignes. The present invention also relates to a motor vehicle, which comprises a hydraulic automatic or semi-automatic gearbox, wherein the hydraulic pressure distributor device mounted in the transmission shaft is in accordance with the device dispenser tube described above in outline.
[0016] D'autres buts, avantages et caractéristiques de l'invention apparaîtront dans la description qui suit d'un exemple de réalisation, non limitatif de l'objet et de la portée de la présente demande de brevet, accompagnée de dessins dans lesquels : [0017] - la figure 1 est une vue en coupe longitudinale, schématique, du dispositif de tube distributeur de pressions fluidiques monté dans un arbre à alésage cylindrique, selon la présente invention, et Other objects, advantages and features of the invention will appear in the following description of an exemplary embodiment, not limiting the object and scope of the present patent application, accompanied by drawings in which FIG. 1 is a schematic longitudinal sectional view of the fluid pressure distributor tube device mounted in a cylindrical bore shaft according to the present invention, and
[0018] - la figure 2 est une vue en coupe longitudinale, schématique également, agrandie, montrant un logement radial formé dans le tube distributeur pour recevoir un joint torique d'étanchéité entre ledit tube et l'alésage cylindrique dans lequel le tube distributeur est monté. [0018] - Figure 2 is a longitudinal sectional view, schematic also enlarged, showing a radial housing formed in the distributor tube for receiving an O-ring seal between said tube and the cylindrical bore in which the distributor tube is mounted.
[0019] En référence aux schémas des figures 1 et 2, on a représenté un tube, de référence générale 10, fixé dans un arbre, de référence générale 20, destiné à distribuer deux pressions hydrauliques P1 et P2. A titre d'exemple non limitatif de l'objet et de la portée de la présente invention, ce tube 10, d'axe XX', réalisé en acier, ou en alliage d'acier, ou bien en aluminium ou en alliage d'aluminium, est le tube de distribution hydraulique d'une boîte de vitesses automatique de véhicule automobile ou bien d'une boîte de vitesses mécanique à commande hydraulique de véhicule automobile. Referring to the diagrams of Figures 1 and 2, there is shown a tube, general reference 10, fixed in a shaft, general reference 20, for dispensing two hydraulic pressures P1 and P2. By way of nonlimiting example of the object and scope of the present invention, this tube 10, of axis XX ', made of steel or alloy of steel, or of aluminum or of aluminum alloy, is the hydraulic distribution tube of an automatic transmission of a motor vehicle or of a mechanical gearbox with hydraulic control of a motor vehicle.
[0020] Les flèches P de la figure 1 illustrent l'arrivée de pression hydraulique (huile) dans le dispositif. La référence 40 désigne une douille d'arrivée d'huile et la référence 50 un palier de maintien de l'arbre de transmission 20. The arrows P of Figure 1 illustrate the arrival of hydraulic pressure (oil) in the device. The reference 40 designates an oil inlet bushing and the reference 50 a support bearing of the transmission shaft 20.
[0021 ] Des joints d'étanchéité, de référence collective 30, sont prévus entre la paroi externe 1 1 du tube distributeur 10 et l'alésage 21 de l'arbre 20. Seals, collective reference 30, are provided between the outer wall 1 1 of the distributor tube 10 and the bore 21 of the shaft 20.
[0022] Les joints d'étanchéité 30 sont portés par des logements radiaux en forme de « gorges », de référence collective 12. Ces gorges 12 de joint d'étanchéité 30 sont réalisées « monobloc » avec le tube distributeur 10, par déformation des parties de la paroi du tube 10 comprenant les gorges 12. The seals 30 are carried by radial housings in the form of "grooves" of collective reference 12. These grooves 12 of seal 30 are made "monobloc" with the distributor tube 10, by deformation of parts of the wall of the tube 10 comprising the grooves 12.
[0023] Comme mieux représenté sur le dessin de la figure 2, cette déformation de la paroi cylindrique du tube 10 dans la zone des gorges 12 présente la forme de deux extensions périphériques radiales externes, désignées par les références 13 et 14. Ces deux extensions 13 et 14 sont distantes axialement d'une distance « d » entre lesquelles est réalisée la surface 15 sensiblement en arc de cercle de la gorge 12 destinée à recevoir un joint d'étanchéité 30. As best shown in the drawing of Figure 2, this deformation of the cylindrical wall of the tube 10 in the region of the grooves 12 has the form of two external radial peripheral extensions, designated by the references 13 and 14. These two extensions 13 and 14 are spaced axially by a distance "d" between which is formed the surface 15 substantially in the form of an arc of the groove 12 intended to receive a seal 30.
[0024] Selon le principe de la présente invention, cette déformation de la paroi du tube distributeur 10 est réalisée par un procédé dit « d'hydroformage », de type connu en soi. According to the principle of the present invention, this deformation of the wall of the distributor tube 10 is performed by a so-called "hydroforming" process, of a type known per se.
[0025] L'hydroformage est un procédé de fabrication par déformation plastique de pièces d'épaisseur faible, telles que des plaques ou des tubes. La forme initiale de la pièce est définie par un moule appelé « matrice ». Contrairement au matriçage, il n'y a pas dans ce procédé d'hydroformage de matrice complémentaire, celle-ci étant remplacée par un fluide sous haute pression qui force la pièce à prendre la forme de l'empreinte de la matrice. L'utilisation d'un fluide sous pression permet d'appliquer un effort dans des zones difficilement accessibles, voir inaccessibles, par les moyens conventionnels. Les matériaux employés pour ce procédé sont très divers mais présentent en commun une caractéristique essentielle : leur domaine élastique est le plus petit possible pour éviter un trop grand retour élastique lorsque la pression du fluide est relâchée. Il est connu d'utiliser en hydroformage des alliages d'aluminium, des alliages d'acier spécifiques, notamment. [0026] Le procédé d'hydroformage est essentiellement utilisé dans l'aéronautique. Il connaît aussi une application dans la fabrication de cadres de bicyclettes en aluminium. Enfin, il est connu pour fabriquer certaines pièces de structure de véhicule automobile, de type châssis ou berceau, en tôle, et ce procédé permet de réaliser des formes complexes en grandes séries, en limitant le coût de production. Hydroforming is a manufacturing process by plastic deformation of small thickness parts, such as plates or tubes. The initial shape of the piece is defined by a mold called "matrix". Unlike stamping, there is no complementary matrix hydroforming in this process, which is replaced by a fluid under high pressure which forces the part to take the shape of the imprint of the matrix. The use of a fluid under pressure makes it possible to apply a force in areas that are difficult to access, or even inaccessible, by conventional means. The materials used for this process are very diverse but have an essential feature in common: their elastic range is as small as possible to avoid too much springback when the pressure of the fluid is released. It is known to use in hydroforming aluminum alloys, specific steel alloys, in particular. The hydroforming process is essentially used in aeronautics. He also knows an application in the manufacture of frames of aluminum bicycles. Finally, it is known for manufacturing some structural vehicle parts, chassis or cradle type, sheet metal, and this process allows for complex shapes in large series, limiting the cost of production.
[0027] Le procédé d'hydroformage utilisé pour la fabrication du tube distributeur 10 peut être un procédé dit « à matrices fixes », dans lequel seule la mise en pression du fluide sous pression contribue à l'obtention de la forme finale, ou bien, en variante, un procédé dit « à matrices mobiles », dans lequel différentes matrices terminent la déformation une fois qu'elle a été amorcée par la pression dudit fluide sous pression d'hydroformage. The hydroforming process used for the manufacture of the distributor tube 10 may be a so-called "fixed matrix" process, in which only the pressurization of the pressurized fluid contributes to obtaining the final form, or else alternatively, a so-called "moving matrix" method, in which different matrices complete the deformation once it has been initiated by the pressure of said hydroformed pressure fluid.
[0028] Il va de soi que la forme de la gorge 12 peut varier en fonction de la technologie d'étanchéité choisie, particulièrement en fonction de la forme du joint d'étanchéité 30 (segment, joint torique, joint plat, etc.). It goes without saying that the shape of the groove 12 may vary depending on the chosen sealing technology, particularly depending on the shape of the seal 30 (segment, O-ring, flat seal, etc.). .
[0029] Dans la présente application, nouvelle, la réalisation du tube distributeur 19 par hydroformage permet d'intégrer les gorges 12 de réception des joints d'étanchéité 30. In the present application, new, the embodiment of the distributor tube 19 by hydroforming allows to integrate the grooves 12 for receiving seals 30.
[0030] La structure du dispositif de tube distributeur de pressions fluidiques décrit ci- dessus dans un exemple de réalisation, ainsi que son procédé de fabrication, présentent d'autres avantages, parmi lesquels les avantages suivants : The structure of the fluid pressure distribution tube device described above in an exemplary embodiment, as well as its method of manufacture, have other advantages, among which the following advantages:
[0031 ] - ils permettent de fabriquer un tube distributeur de forme complexe (du fait de ses moyens d'étanchéité intégrés) avec un coût maîtrisé, [0031] they make it possible to manufacture a complex-shaped dispensing tube (because of its integrated sealing means) with a controlled cost,
[0032] - ils permettent une fabrication en grande série du tube distributeur, [0032] they allow a mass production of the distributor tube,
[0033] - ils permettent de réaliser un tube distributeur de bonne tenue mécanique, [0033] they make it possible to produce a distributor tube of good mechanical strength,
[0034] - ils permettent d'éviter la fabrication du tube distributeur par usinage par enlèvement de matière (tournage, par exemple) lorsque celui-ci est en métal, ou la fabrication d'un tube distributeur de forte section si ce dernier est en matière plastique, [0034] they make it possible to prevent the manufacture of the distributor tube by machining by removal of material (turning, for example) when the latter is made of metal, or the manufacture of a strong section distributor tube if the latter is in plastic material,
[0035] - ils permettent, grâce à l'hydroformage, de fabriquer un tube distributeur de section quasi-constante (au fluage de matière prêt), et par conséquent de réduire considérablement les risques d'amorces de rupture, et enfin [0036] - ils permettent de simplifier la pièce femelle (arbre) qui peut avoir un perçage de faible diamètre, même avec une étanchéité en plein milieu d'une pièce relativement longue, comme un arbre de boîte de vitesses par exemple. [0035] they allow, thanks to hydroforming, to manufacture a dispensing tube of quasi-constant section (with creep of ready material), and consequently to considerably reduce the risks of rupture initiators, and finally - They simplify the female part (shaft) which can have a small diameter bore, even with a seal in the middle of a relatively long part, such as a gearbox shaft.

Claims

Revendications : Claims:
1 . Dispositif de tube distributeur (10) de pressions fluidiques (P1 , P2) d'un arbre de transmission (20), des joints d'étanchéité (30) étant prévus entre la paroi externe (1 1 ) du tube distributeur (10) et l'alésage (21 ) de l'arbre de transmission (20) à l'intérieur duquel est monté le tube distributeur (20), ledit tube distributeur (20) étant pourvu sur sa paroi externe (1 1 ) de gorges (12) destinées à recevoir chacune un joint d'étanchéité (30) et lesdites gorges (12) étant réalisées « monobloc » avec le tube distributeur (10) et par déformation des parties de la paroi externe (1 1 ) du tube distributeur (10) comprenant les gorges (12), caractérisé en ce que le tube distributeur (10) est un tube de distribution de pressions hydrauliques de boîte de vitesses automatique ou semi- automatique de véhicule automobile.. 1. Dispenser tube device (10) of fluidic pressures (P1, P2) of a transmission shaft (20), seals (30) being provided between the outer wall (1 1) of the distributor tube (10) and the bore (21) of the transmission shaft (20) inside which the distributor tube (20) is mounted, said delivery tube (20) being provided on its outer wall (1 1) with grooves (12) each intended to receive a seal (30) and said grooves (12) being made "monobloc" with the dispensing tube (10) and by deformation of the parts of the outer wall (1 1) of the dispensing tube (10) comprising the grooves (12), characterized in that the distributor tube (10) is a hydraulic pressure distribution tube for automatic or semi-automatic transmission of a motor vehicle.
2. Dispositif selon la revendication 1 , caractérisé en ce que ladite déformation présente, pour chaque gorge (12), la forme de deux extensions périphériques (13, 14) radiales externes de la paroi externe (1 1 ) du tube distributeur (10), distantes axialement (« d »), entre lesquelles est réalisée la surface (15) de la gorge (12) destinée à recevoir un joint d'étanchéité (30). 2. Device according to claim 1, characterized in that said deformation has, for each groove (12), the shape of two external radial extensions (13, 14) of the outer wall (1 1) of the distributor tube (10). , spaced axially ("d"), between which is formed the surface (15) of the groove (12) for receiving a seal (30).
3. Dispositif selon l'une quelconque des revendications 1 et 2, caractérisé en ce que le tube distributeur (10) est réalisé dans l'un des matériaux suivants : acier, alliage d'acier, aluminium, alliage d'aluminium. 3. Device according to any one of claims 1 and 2, characterized in that the dispensing tube (10) is made of one of the following materials: steel, steel alloy, aluminum, aluminum alloy.
4. Dispositif selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la surface (15) desdites gorges (12) présentent une section sensiblement en arc de cercle. 4. Device according to any one of claims 1 to 3, characterized in that the surface (15) of said grooves (12) have a section substantially in a circular arc.
5. Dispositif selon la revendication 4, caractérisé en ce que les joints d'étanchéité (30) sont des joints de type torique. 5. Device according to claim 4, characterized in that the seals (30) are toric-type seals.
6. Procédé de réalisation d'un dispositif de tube distributeur de pressions fluidiques conforme à l'une quelconque des revendications 1 à 5, caractérisé en ce que la déformation des parties de la paroi externe (1 1 ) du tube distributeur (10) pour réaliser les gorges (12) de réception des joints d'étanchéité (30) est obtenue par un procédé d'hydroformage. 6. A method of producing a fluid pressure distributor tube device according to any one of claims 1 to 5, characterized in that the deformation of the parts of the outer wall (1 1) of the distributor tube (10) for performing the grooves (12) for receiving the seals (30) is obtained by a hydroforming process.
7. Procédé selon la revendication 6, caractérisé en ce que ledit procédé d'hydroformage est un procédé d'hydroformage à matrices fixes. 7. Method according to claim 6, characterized in that said hydroforming process is a hydroforming method with fixed matrices.
8. Procédé selon la revendication 6, caractérisé en ce que ledit procédé d'hydroformage est un procédé d'hydroformage à matrices mobiles. 8. Method according to claim 6, characterized in that said hydroforming process is a hydroforming method with moving matrices.
9. Véhicule automobile, qui comporte une boîte de vitesses automatique à commande hydraulique, caractérisé en ce que le dispositif de tube distributeur (10) de pressions hydrauliques monté fixe dans l'arbre de transmission (20) de la boîte est conforme à l'une quelconque des revendications 1 à 5. 9. Motor vehicle, which comprises a hydraulically controlled automatic gearbox, characterized in that the hydraulic pressure distributor device (10) fixedly mounted in the transmission shaft (20) of the gearbox is in accordance with the any of claims 1 to 5.
PCT/FR2015/050368 2014-03-27 2015-02-16 Fluid-pressure distribution tube device mounted inside a transmission shaft WO2015144999A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201580016615.6A CN106164538B (en) 2014-03-27 2015-02-16 It is assembled in the distribution pipe device that the fluid pressure inside transmission shaft is allocated
EP15709718.9A EP3123058A1 (en) 2014-03-27 2015-02-16 Fluid-pressure distribution tube device mounted inside a transmission shaft

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1452618A FR3019249B1 (en) 2014-03-27 2014-03-27 FLUID PRESSURE DISTRIBUTOR TUBE DEVICE MOUNTED INSIDE A TRANSMISSION SHAFT.
FR1452618 2014-03-27

Publications (1)

Publication Number Publication Date
WO2015144999A1 true WO2015144999A1 (en) 2015-10-01

Family

ID=51168081

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2015/050368 WO2015144999A1 (en) 2014-03-27 2015-02-16 Fluid-pressure distribution tube device mounted inside a transmission shaft

Country Status (4)

Country Link
EP (1) EP3123058A1 (en)
CN (1) CN106164538B (en)
FR (1) FR3019249B1 (en)
WO (1) WO2015144999A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3520163A (en) * 1966-12-08 1970-07-14 Matsushita Electric Ind Co Ltd Method of and an apparatus for bulge forming
FR2679159A1 (en) 1991-07-18 1993-01-22 Thiberge Louis Hydroforming method and device for implementing it
WO1999035432A1 (en) 1998-01-08 1999-07-15 Juedes Marvin A Hose fitting and die for preparation
WO2001014077A1 (en) * 1999-08-24 2001-03-01 Cosma International Inc. Hydroformed collapsible drive shaft and steering shaft and methods of making the same
GB2380958A (en) * 2001-10-18 2003-04-23 Dana Corp Method of manufacturing an axially collapsible driveshaft

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3520163A (en) * 1966-12-08 1970-07-14 Matsushita Electric Ind Co Ltd Method of and an apparatus for bulge forming
FR2679159A1 (en) 1991-07-18 1993-01-22 Thiberge Louis Hydroforming method and device for implementing it
WO1999035432A1 (en) 1998-01-08 1999-07-15 Juedes Marvin A Hose fitting and die for preparation
WO2001014077A1 (en) * 1999-08-24 2001-03-01 Cosma International Inc. Hydroformed collapsible drive shaft and steering shaft and methods of making the same
GB2380958A (en) * 2001-10-18 2003-04-23 Dana Corp Method of manufacturing an axially collapsible driveshaft

Also Published As

Publication number Publication date
FR3019249A1 (en) 2015-10-02
CN106164538A (en) 2016-11-23
FR3019249B1 (en) 2017-08-25
EP3123058A1 (en) 2017-02-01
CN106164538B (en) 2018-12-28

Similar Documents

Publication Publication Date Title
EP2960531B1 (en) Crimping piece on a support, device comprising such a piece and methods of manufacturing such a part and such a device
EP3818266B1 (en) Hydrosatic machine comprising a cam ring
FR2523490A1 (en) METHOD FOR AXIALLY FIXING A METAL WHEEL ON A METALLIC SHAFT AND ELEMENT THUS PRODUCED
EP3375542B1 (en) Method for assembling an insert on a support
EP2905091A1 (en) Method for assembling an insert on a mounting
FR2992241A1 (en) METHOD OF FORMING A METAL TUBE WITH FASTENING ON A FLANGE AND ASSEMBLY COMPRISING SUCH A TUBE
CA2919963C (en) Electro-hydraulic forming machine for the plastic deformation of a projectile part of the wall of a workpiece to be formed
FR2999965A1 (en) DEVICE AND METHOD FOR HIGH SPEED SHAPING FORMING
FR3061863A1 (en) MAGNETOFORMING PADDING DEVICE AND ASSOCIATED METHOD
EP3123058A1 (en) Fluid-pressure distribution tube device mounted inside a transmission shaft
FR2958572A1 (en) Autofrettage system for high pressure fuel injection pipe in diesel engine, has pressurization unit inserting piston in chamber with preset speed that is greater than critical speed so as to allow piece to be subjected to autofrettage
FR2574008A1 (en) TWO ROLLER FOR TOLES
EP3496876B1 (en) Indirect electrohydraulic press forming tool, device and method
FR2997327A1 (en) METHOD OF MAKING A PISTON WITH A SEALING DEVICE AND THE CORRESPONDING PISTON
FR3008150A1 (en) PISTON BRAKE DEVICE WITH TOTAL REVERSE FUNCTION
FR3054284A1 (en) DRIVING CONNECTION ARRANGEMENT
FR2713724A1 (en) Rivet for joining metal sheets from one side
FR2979406A1 (en) Sealing device for use in clutch drive of gear box in car for sealing hydraulic channels crossing between hydraulic piston body and support plate, during passage of hydraulic fluid, has connecting element connecting joints with each other
WO2003039784A1 (en) Expanding method and device and resulting expanded elastic articulation
FR3084410A1 (en) HYDRAULIC MACHINE
EP0080914B1 (en) Method and tool for fixing an axis to a metallic support, and assembly so obtained
WO2022184991A1 (en) Segmented threaded tubular element
EP2476541A1 (en) Method for improving the mechanical properties of an assembly made of composite material
EP2173505B1 (en) Device for reshaping the end of a dowel
WO2020021019A1 (en) Hydraulic machine

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15709718

Country of ref document: EP

Kind code of ref document: A1

REEP Request for entry into the european phase

Ref document number: 2015709718

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2015709718

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: DE