FR2643435A2 - Self-locking differential with an epicyclic gear chain - Google Patents

Self-locking differential with an epicyclic gear chain Download PDF

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Publication number
FR2643435A2
FR2643435A2 FR8902351A FR8902351A FR2643435A2 FR 2643435 A2 FR2643435 A2 FR 2643435A2 FR 8902351 A FR8902351 A FR 8902351A FR 8902351 A FR8902351 A FR 8902351A FR 2643435 A2 FR2643435 A2 FR 2643435A2
Authority
FR
France
Prior art keywords
rod
groove
engaged
self
epicyclic gear
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.)
Pending
Application number
FR8902351A
Other languages
French (fr)
Inventor
Michel Gobert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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
Priority claimed from FR8814158A external-priority patent/FR2638500B1/en
Application filed by Individual filed Critical Individual
Priority to FR8902351A priority Critical patent/FR2643435A2/en
Priority to ES89402981T priority patent/ES2048857T3/en
Priority to AT89402981T priority patent/ATE100182T1/en
Priority to EP89402981A priority patent/EP0366563B1/en
Priority to DE1989612269 priority patent/DE68912269T2/en
Priority to JP28283289A priority patent/JPH02245546A/en
Publication of FR2643435A2 publication Critical patent/FR2643435A2/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H48/00Differential gearings
    • F16H48/20Arrangements for suppressing or influencing the differential action, e.g. locking devices
    • F16H48/22Arrangements for suppressing or influencing the differential action, e.g. locking devices using friction clutches or brakes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H48/00Differential gearings
    • F16H48/06Differential gearings with gears having orbital motion
    • F16H48/08Differential gearings with gears having orbital motion comprising bevel gears
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H48/00Differential gearings
    • F16H48/06Differential gearings with gears having orbital motion
    • F16H48/10Differential gearings with gears having orbital motion with orbital spur gears
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H48/00Differential gearings
    • F16H48/06Differential gearings with gears having orbital motion
    • F16H48/10Differential gearings with gears having orbital motion with orbital spur gears
    • F16H48/11Differential gearings with gears having orbital motion with orbital spur gears having intermeshing planet gears
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H48/00Differential gearings
    • F16H48/20Arrangements for suppressing or influencing the differential action, e.g. locking devices
    • F16H48/24Arrangements for suppressing or influencing the differential action, e.g. locking devices using positive clutches or brakes

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)

Abstract

The invention relates to a differential according to the main patent. The first, second, or third rod respectively is replaced by a cam 101 of substantially triangular cross-section, one apex 104 of which is fully engaged in the groove 105 and the opposite base 102 of which is engaged in a recess 103 formed in the member 100 which was carrying the rod.

Description

La présente invention concerne une variante apportée à l'agencement à tiges et rainures coopérantes du brevet principal. The present invention relates to a variant made to the arrangement of cooperating rods and grooves of the main patent.

Ce brevet a pour objet un différentiel autobloquant à train épicloïdal, comportant un organe d'entrée et deux organes de sortie, caractérisé par le rait qu'il comprend des noyens de solidarisation pour solidariser en rctation deu: des trois organes d'entrée et de sortie par déplactment axial de l'organe d'entrée, et des moyens de poussée pour provoquer ledit déplacement axial de l'organe d'entrée lors d'une diminution d'un des couples de sortie. The object of this patent is a self-locking differential with epicoidal train, comprising an input member and two output members, characterized by the fact that it comprises securing cores for securing in rctation two: of the three input and output by axial displacement of the input member, and thrust means for causing said axial displacement of the input member during a decrease in one of the output couples.

Plus particulièrement, les moyens de poussée peuvent dans ce brevet principal comprendre au moins une première tige radiale engagée dans une première rainure radiale à section en V, la tige étant montée fixe dans l'un des éléments constitués par le boîtier du différentiel et par l'organe d'entrée, et la rainure étart formée dans l'autre de ces éléments, le couple d'entree étant appliqué à l'organe d'entrée par l'intermédiaire de la force d'appui exercée par la prer.ière tige sur l'un des flancs de la première rainure. More particularly, the thrust means may in this main patent comprise at least a first radial rod engaged in a first radial groove with a V section, the rod being mounted fixed in one of the elements constituted by the differential housing and by the input member, and the etart groove formed in the other of these elements, the input torque being applied to the input member by means of the bearing force exerted by the prer.ière rod on one of the sides of the first groove.

Ce brevet prévoit également des moyens de blocage pour empêcher le mouvement axial de 'organe d'entrée lorsqu'un couple résistant suffisant est applique à l'un au moIn des organe e sortie, ces moyens de blocage pauvant comprendre au moins une deuxième tige radiale engagée dans une deuxième rainure radiale à section en t;;, la tige étant solidaire en rotation de l'un des éléments constitués par l'arbre de sortie correspondant à l'un des organes de sortie et par cet organe de sortie lui-même, et la rainure tant foirée dans l'autres de ces éléments, le couple résistant correspondant etant aprlicue à l'organe de sortie par l'intermédiaire de la force d'appui exercée par la deuxième tige sur l'un des flancs de la deuxième rainure. This patent also provides locking means to prevent the axial movement of the input member when a sufficient resistant torque is applied to one at least of the output member, these poor locking means comprising at least a second radial rod. engaged in a second radial groove with a t-shaped section; the rod being integral in rotation with one of the elements constituted by the output shaft corresponding to one of the output members and by this output member itself , and the groove so messed up in the other of these elements, the corresponding resistive torque being aprlicue to the outlet member by means of the bearing force exerted by the second rod on one of the sides of the second groove.

Ce brevet prévoit également que l'organe d'entrée peut comprendre la couronne du train épicycloïdal et que le deuxième organe de sortie peut comprendre le porte-satel: tes du train épicycloTdal, au moins une troisième tige étant montée solidaire en rotation du porte-satellites, et engagée dans une troisième rainure radiale à section en V formée par un organe solidaire de l'arbre de sortie correspondant au porte-satellites, le couple résistant étant transmis dudit arbre de sortie au porte-satellites par l'intermédiaire de la troisième tige. This patent also provides that the input member may comprise the crown of the planetary gear train and that the second output member may include the satel holder: tes of the epicyclic train, at least one third rod being mounted integral in rotation with the holder satellites, and engaged in a third radial V-shaped groove formed by a member integral with the output shaft corresponding to the planet carrier, the resistive torque being transmitted from said output shaft to the planet carrier by means of the third rod.

Selon l'invention ladite premiere et/ou deuxième et/ou troisième tige est remplace par une canne à section sensiblement triangulaire dont un sommet est engagé au fond de la rainure et dont la base opposée est engagée dans un embrèvement orme oans l'organe sui portait la tige.  According to the invention, said first and / or second and / or third rod is replaced by a rod with a substantially triangular section, an apex of which is engaged at the bottom of the groove and the opposite base of which is engaged in an elm recess in the organ sui wore the rod.

Dans un mode de réalisation particulier de l'invention, l'organe dans lequel est formée la rainure, et l'organe dans lequel est formé l'emboîtement comportent des butées pour limiter leur glissement angulaire relatif. In a particular embodiment of the invention, the member in which the groove is formed, and the member in which the nesting is formed have stops to limit their relative angular sliding.

On décrira maintenant à titre d'exemple non limitatif un mode de réalisation particulier de l'invention en référence aux dessins annexés dans lesque
-Les figures l et 2 représentent deus organes en rotation dans deux positions différentes, fonction de la valeur relative du couple appliqué par 'organe moteur et du couple résistant exercé sur 11 organe entraîné.
A particular embodiment of the invention will now be described by way of non-limiting example with reference to the accompanying drawings.
FIGS. 1 and 2 represent two bodies in rotation in two different positions, depending on the relative value of the torque applied by the drive member and the resistive torque exerted on the driven member.

Le brevet principal prévoyait dans un certain nombre de cas un organe solidaire d'une tige engagée dans une nervure formée dans un autre organe, l'un ae ces organes étant moteur et l'autre organe étant entraîné, la réaction de la tige sur les flancs de la nervure provoquant un effort axial utilise pour assurer le fonctionnement du dispositif. The main patent provided in a certain number of cases for a member secured to a rod engaged in a rib formed in another member, one of these members being motor and the other member being driven, the reaction of the stem on the sides of the rib causing an axial force used to ensure the operation of the device.

Selo l'invention, la tige qui était solidaire d'un organe 100 est remplacée par ur campe 10 de fcrne sensiblement triangulaire, dans ce cas particulier isocèle, dont la base 10 est engagée dans un embrèvement 103 de l'organe ICO, et cont le sommet 104 oppose à la base 102 est engagé au fond de la rainure 105 de l'organe en vis-à-vis 106. According to the invention, the rod which was integral with an organ 100 is replaced by a camp 10 of substantially triangular shape, in this particular isosceles case, the base 10 of which is engaged in a recess 103 of the organ ICO, and cont the top 104 opposite the base 102 is engaged at the bottom of the groove 105 of the member opposite 106.

Si l'on suppose que l'organe menant est l'organe 100 et qu'il tourne dans le sens indiqué par la flèche Fl, l'ensemble adoptera la configuration de la figure z dans laquelle la came 101 a basculé, dans la mesure ou e couple résistant applique à l'organe 106 est suffisant. If it is assumed that the leading member is the member 100 and that it rotates in the direction indicated by the arrow F1, the assembly will adopt the configuration of FIG. Z in which the cam 101 has tilted, in the measure or the resistant torque applied to the member 106 is sufficient.

Deux butées coopérantes 107 et 108 peuvent être prévues sur les organes 100 et 106 respectivement pour limiter le glissement relatif de ces organe.  Two cooperating stops 107 and 108 can be provided on the members 100 and 106 respectively to limit the relative sliding of these members.

Dans cette position les pièces 100 et 106 sont écartées. In this position the parts 100 and 106 are separated.

Si par contre cet écartement est contrarié, on récupère un effort axial dans le sens de la fiche F2 comme représenté à la figure 1. If on the other hand this spacing is thwarted, an axial force is recovered in the direction of the plug F2 as shown in FIG. 1.

On comprend par conséquent qu'un tel agencement peut remplacer l'un quelconque des agencements a tiges et rainures du brevet principal. It is therefore understood that such an arrangement can replace any of the rod and groove arrangements of the main patent.

Diverses variantes et modifications peuvent bien entendu être apportées à la aescriptior. qui précède sans sortir pour autant du cadre ni de l'esprit de v 'invention.  Various variants and modifications can of course be made to the aescriptior. which precedes without leaving the framework nor the spirit of the invention.

Claims (2)

REVENDICATIONS 1. Différentiel selon l'une quelconque des revendications 2, 5 et 7 du brevet principal, caractérisé par le fait que ladite premiere, deuxième ou troisième tige respectivement. est remplacée par une came (101) à section sensiblement triangulaire, dont un sommet (104) est engagé au fond de la rainure (105j et dont la base opposée (102) est engagée dans un embrèvement (103) formé dans l'organe (100) qui rotait la tige. 1. Differential according to any one of claims 2, 5 and 7 of the main patent, characterized in that said first, second or third rod respectively. is replaced by a cam (101) of substantially triangular section, whose apex (104) is engaged at the bottom of the groove (105j and whose opposite base (102) is engaged in a recess (103) formed in the member ( 100) which rotated the stem. 2. Différentiel selon la revendication 1, caractérisé par le fait que l'organe ('06) dans lequel est formée la rainure et l'organe dans lequel est formé ltembrèvement comportent des butées (107,108) pour limiter leur glissement angulaire relatif.  2. Differential according to claim 1, characterized in that the member ('06) in which the groove is formed and the member in which is formed ltembrancement include stops (107,108) to limit their relative angular sliding.
FR8902351A 1988-10-28 1989-02-23 Self-locking differential with an epicyclic gear chain Pending FR2643435A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FR8902351A FR2643435A2 (en) 1988-10-28 1989-02-23 Self-locking differential with an epicyclic gear chain
ES89402981T ES2048857T3 (en) 1988-10-28 1989-10-27 SELF-LOCKING DIFFERENTIAL.
AT89402981T ATE100182T1 (en) 1988-10-28 1989-10-27 SELF-LOCKING DIFFERENTIAL.
EP89402981A EP0366563B1 (en) 1988-10-28 1989-10-27 Self-locking differential
DE1989612269 DE68912269T2 (en) 1988-10-28 1989-10-27 Self-locking differential.
JP28283289A JPH02245546A (en) 1988-10-28 1989-10-30 Automatic clamp fastening differentiating device with conical pinion

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8814158A FR2638500B1 (en) 1988-10-28 1988-10-28 SELF-LOCKING DIFFERENTIAL WITH EPICYCLOIDAL TRAIN
FR8902351A FR2643435A2 (en) 1988-10-28 1989-02-23 Self-locking differential with an epicyclic gear chain

Publications (1)

Publication Number Publication Date
FR2643435A2 true FR2643435A2 (en) 1990-08-24

Family

ID=26226957

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8902351A Pending FR2643435A2 (en) 1988-10-28 1989-02-23 Self-locking differential with an epicyclic gear chain

Country Status (1)

Country Link
FR (1) FR2643435A2 (en)

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