FR2660977A2 - Improvements to coupling reduction gears - Google Patents

Improvements to coupling reduction gears Download PDF

Info

Publication number
FR2660977A2
FR2660977A2 FR9005093A FR9005093A FR2660977A2 FR 2660977 A2 FR2660977 A2 FR 2660977A2 FR 9005093 A FR9005093 A FR 9005093A FR 9005093 A FR9005093 A FR 9005093A FR 2660977 A2 FR2660977 A2 FR 2660977A2
Authority
FR
Grant status
Application
Patent type
Prior art keywords
clutch
improvements
reduction gear
toothed wheel
cones
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
FR9005093A
Other languages
French (fr)
Inventor
Blanchard Robert
Original Assignee
Blanchard Robert
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

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
    • F16H1/00Toothed gearings for conveying rotary motion
    • F16H1/02Toothed gearings for conveying rotary motion without gears having orbital motion
    • F16H1/04Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
    • F16H1/12Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes
    • F16H1/16Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising worm and worm-wheel
    • 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
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D13/00Friction clutches
    • F16D13/22Friction clutches with axially-movable clutching members
    • F16D13/24Friction clutches with axially-movable clutching members with conical friction surfaces cone clutches

Abstract

The invention relates to improvements to the main Patent. The improvements consist in equipping the reduction gear with a clutch housed in the space occupied by the gearwheel of the coupling reduction gear. This clutch essentially consists of two opposed and symmetrical conical bearing surfaces formed in the bore of the gearwheel, and two corresponding male cones. The reduction gear finds a main application in the driving of automotive equipment. <IMAGE>

Description

Perfectionnement aux Réducteurs Coupleurs. Improvement in Couplers Reducers.

Le brevet principal concerne un réducteur coupleur du Type comportant deux demi carters identiques renfermant l'ensemble du mécanisme de réduction à roue-dentée et vis sans fin, et un embrayage. The main patent relates to a gear coupler of the type comprising two identical half casings containing the entire toothed wheel reduction mechanism and endless screw, and a clutch.

Ce réducteur coupleur est caractérisé notamment en ce qu'il comporte deux demi carters identiques, renfermant Tensemble du mécanisme de réduction à roue dentée et vis sans fin et d'embrayage composé de disques de friction. The gear coupling is characterized in particular in that it comprises two identical half casings containing Tensemble the gear reduction mechanism and worm and compound friction disc clutch.

Suivant une caractéristique du brevet principal, le carter comporte une plaque de réaction, recevant l'effort axial de l'embrayage et le répartissant sur la quasitotalité de la surface frontale du dit carter assemblé. According to one characteristic of the main patent, the housing has a reaction plate, receiving the axial force of the clutch and distributed over substantially all of the front surface of said housing assembly.

Suivant une autre caractéristique du brevet principal, les deux demi carters identiques comportent des logements dans lesquels viennent prendre place des paliers lors de l'assemblage des deux demi carters, assurant ainsi leur positionnement respectif. According to another feature of the main patent, the two half casings comprise identical housings in which take their place the bearings upon assembly of the two half housings, thereby ensuring their respective positioning.

Suivant une troisième caractéristique du brevet principal, l'arbre à came de commande de ltembrayage est disposé de façon telle que lors de sa rotation autour de son axe pendant l'action d'embrayage, l'effort axial qu'il exerce sur la fourchette d'embrayage va en augmentant. According to a third feature of the patent, the shaft ltembrayage control cam is disposed so that during its rotation around its axis during the clutch action of axial force it exerts on the fork clutch is increasing.

L'ensemble de ce dispositif qui donne parfaitement satisfaction pour un usage normal , peut présenter quelques difficultés de tenue dans le temps spécialement en ce qui concerne l'embrayage. This entire device perfectly satisfactory for normal use, can present some difficulties in holding time especially regarding the clutch. Dans certains cas, l'embrayage est amené à passer un couple relativement important avec une fréquence d'utilisation élevée. In some cases, the clutch is passed relatively high torque with a high usage frequency.

Jusqu a ce jour, dans des dispositifs réducteurs de ce type, on a utilisé des embrayages multidisques en soi connus, qui présentent les inconvénients indiqués plus haut, et qui de plus, en raison de leur architecture propre ont un encombrement non désirable, et un nombre de composants qui ne permet pas une construction fiable et économique. Up to date in reducing devices of this type were used known multi-plate clutches per se, which have the disadvantages mentioned above, and moreover, because of their own architecture have an undesirable size, and number of components that do not allow a reliable and economical construction.

La présente addition a en conséquence,. This addition has accordingly ,. pour but un réducteur coupleur conforme à la revendication 1 du brevet principal, caractérisé en ce outil comporte dans l'espace occupé par la roue dentée, un embrayage qui est essentiellement constitué par une surface biconique ménagée dans l'alésage de ladite roue dentée, avec un axe de symétrie passant par le plan radial médiant de cette roue, cet alésage recevant, de part et d'autre dudit plan de symétrie, deux disques d'embrayage dont le listel est conique, qui sont pressés dans les cones correspondants de l'alésage de la roue, de manière à solidariser l'axe d'entrée dudit réducteur avec l'axe de sortie, lors de l'action d'embrayage, et inversement à déssolidariser les dits axes lors du débrayage. aimed a reducing coupler according to claim 1 of the main patent, wherein the tool comprises in the space occupied by the toothed wheel, a clutch which is essentially constituted by a biconical surface provided in the bore of said gear wheel, with an axis of symmetry passing through the mediating radial plane of the wheel, this bore receiving, on either side of said plane of symmetry, two clutch discs whose strip is conical, which are pressed into the corresponding cones of the bore of the wheel, so as to secure the inlet axis of said reducer with the output shaft when the clutch action and conversely déssolidariser said axes during disengagement.

Suivant une autre caractéristique, les rondelles coniques d'embrayage situées de part et d'autre de la roue dentée, comportent en leur centre un dispositif destiné à solidariser en rotation les dites rondelles coniques avec l'axe de sortie, tout en leur permettant de se déplacer longitudinalement. According to another feature, the conical clutch washers located on both sides of the toothed wheel, comprise at their center a device for integral in rotation the said conical washers with the output shaft, while allowing them to move longitudinally.

Grâce à cette disposition d'ensemble, on réduit le nombre de pièces nécessaires à la fonction embrayage, débrayage, on réduit l'inertie de commande, et on peut diminuer l'encombrement général du réducteur équipé de cet embrayage. With this overall arrangement, it reduces the number of parts required to function clutch, clutch, reduces the control inertia, and can reduce the overall size of the gearbox equipped with this clutch.

D'autres caractéristiques et avantages de l'invention ressortiront encore de la lecture de la description détaillée qui suit d'un mode de réalisation préféré de l'invention, donné ici à titre d'exemple et représenté sur les dessins joints dans lesquels Other features and advantages of the invention will become apparent from reading the following detailed description of a preferred embodiment of the invention, given by way of example and shown in the accompanying drawings in which
- la figure 1 est une vue en plan de l'ensemble du mécanisme dans - Figure 1 is a plan view of the whole mechanism in
son carter. its casing.

- la figure 2 est une vue en perspective d'un demi carter, et, - Figure 2 is a perspective view of half a housing and,
détaché de celui-ci, d'un palier de sortie detached therefrom, an output bearing
- la figure 3 est une vue en coupe de la roue dentée et d'un cone - Figure 3 is a sectional view of the toothed wheel and a cone
d'embrayage. Clutch.

Conformément à la description du brevet principal, l'ensemble du mécanisme est logé dans un carter constitué de deux demi carters identiques 1 , dans lesquels sont ménagers deux logements en forme demi circulaire 2 , dans lesquels viennent prendre place les paliers 3 de l'arbre de sortie 4... Ce modé-derconstruc"tion assure, lors de l'assemblage, un positionnement parfait de chaque demi carter l'un par rapport à l'autre. According to the description of the main patent, the entire mechanism is accommodated in a housing constituted by two identical half casings 1, wherein are household two half circular shaped housing 2, which take their place the bearings 3 of the shaft Release 4 ... This mode-derconstruc "tion provides, during assembly, proper positioning of each casing half with respect to each other.

La plaque de réaction 5 , réalisée dans un matériau rigide, reçoit en final la poussée de l'action d'embrayage et assure, en répartissant cet effort sur l'ensemble de la surface frontale 6 du carter assemblé, la non déformation et la rigidification de ce dernier. The reaction plate 5, made of a rigid material, receives the final push of the clutch action and ensures, by distributing this stress on all of the front surface 6 of the assembled housing, the non-deformation and the stiffening of the last.

La vis sans fin 7 entraîne la roue dentée réceptrice 8 par son mouvement de rotation, en assurant ainsi la réduction de la vitesse. The worm 7 drives the driven gear 8 by its rotational movement, thus ensuring the speed reduction. La roue dentée 8 comporte dans son alésage deux surfaces de révolution coniques 9 , dans lesquelles viennent se loger les deux cones d'embrayage 10 , lors de l'action d'embrayage. The toothed wheel 8 comprises in its bore two conical surfaces of revolution 9, in which are housed the two clutch cones 10, when the clutch action.

Les cones d'embrayage 10 comportent dans leur alésage, un évidement 11 , dans lequel vient se loger une pièce 12 solidaire de l'arbre de sortie. The clutch cones 10 comprise in their bore, a recess 11 which accommodates a member 12 integral with the output shaft. Ainsi les cones d'embrayage sont solidaires de l'arbre de sortie en rotation, mais libres de se déplacer suivant une direction parallèle à l'axe de l'arbre de sortie 4 , notamment, pendant la manoeuvre d'embrayage. Thus the clutch cones are secured to the output shaft in rotation, but free to move in a direction parallel to the axis of the output shaft 4, in particular, during the clutch operation.

Lors de l'action d'embrayage, on exerce un effort axial sur la butée 13 , par la rotation autour de son axe 14 de l'arbre à came 15 , qui agit axialement par l'intermédiaire de la fourchette 16 When the clutch action is exerted an axial force on the abutment 13 by rotation about its axis 14 of the camshaft 15, which acts axially through the fork 16
L'effort axial d'embrayage se transmet ainsi par la butée 13 , aux cones 10 sur les portées coniques internes 9 de la roue dentée 8 , assurant la solidarisation de l'ensemble. The clutch axial force thus transmitted through the stop 13, the cones 10 of the internal conical bearing surfaces 9 of the toothed wheel 8, ensuring the connection of the assembly.

A l'inverse, lors de la manoeuvre de débrayage, la rotation en l'autre sens de l'arbre à came 15 , permet le recul de la fourchette 16 et de la butée 13 permettant ainsi aux cones 10 de se dégager légèrement des portées coniques internes 9 de la roue dentée. Conversely, during the declutching operation, the rotation in the other direction of the camshaft 15 enables the back of the fork 16 and the stop 13 allowing the cones 10 to disengage slightly litters internal bevel 9 of the toothed wheel. I1 n > y a ainsi plus d'entrainement en rotation de l'arbre de sortie 4 . I1 n> are thus more rotation of the output shaft 4. Seules,la vis sans-fin 7 et la roue dentée 8 continuent leur rotation. Only, the worm-screw 7 and the gear 8 continues rotation. A ce moment, la roue dentée 8 se trouve guidée et positionnée suivant les trois axes orthogonaux seulement par le contact subsistant des portées coniques respectives femelles 9 de ladite roue dentée et mâles des cones 10 . At this time, the gear wheel 8 is positioned and guided along the three orthogonal axes only by contact remaining respective female conical bearing surfaces 9 of the said toothed wheel and male cones 10. On réalise de cette façon un maintient en position de la roue dentée 8 , qui est dit flottant, de façon très économique, sans aller chercher ce maintient sur l'arbre de sortie, ou tout autre organe ou dispositif. It achieves this way maintains a position of the gear 8, which is called floating, very economically, without seeking it maintains on the output shaft, or any other organ or device.

Claims (2)

    Revendications claims
  1. 1. Un réducteur coupleur du type comportant essentiellement deux demi carters identiques 1 , renfermant l'ensemble du mécanisme de réduction à vis sans fin 7 et roue dentée 8 , et d'embrayage, caractérisé en ce que le mécanisme d'embrayage est composé de deux portées coniques symétriques et opposées femelles 9 recevant deux cones mâles 10 montés en opposition. 1. A reducing coupling of the type essentially comprising two identical half casings 1, containing the entire worm reduction mechanism 7 and toothed wheel 8, and the clutch, characterized in that the clutch mechanism is composed of two females symmetrical and opposite conical bearing 9 receiving two male cones 10 mounted in opposition.
  2. 2. Un réducteur coupleur selon revendication 1 , caractérisé en ce que, en position débrayage, les deux cones mâles 10 assurant le maintien en position de la roue dentée 8 , par l'intérmédiaire des portées coniques 9 de ladite roue dentée. 2. A reducing coupler according claim 1, characterized in that, in the disengaged position, the two male cones 10 ensuring the holding in position of the gear wheel 8, through the conical bearing surfaces 9 of the said toothed wheel.
FR9005093A 1989-03-02 1990-04-17 Improvements to coupling reduction gears Withdrawn FR2660977A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR8902938A FR2643958A1 (en) 1989-03-02 1989-03-02 Reduction gear/coupling
FR9005093A FR2660977A2 (en) 1989-03-02 1990-04-17 Improvements to coupling reduction gears

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9005093A FR2660977A2 (en) 1989-03-02 1990-04-17 Improvements to coupling reduction gears

Publications (1)

Publication Number Publication Date
FR2660977A2 true true FR2660977A2 (en) 1991-10-18

Family

ID=31716902

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9005093A Withdrawn FR2660977A2 (en) 1989-03-02 1990-04-17 Improvements to coupling reduction gears

Country Status (1)

Country Link
FR (1) FR2660977A2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2704287A1 (en) * 1993-04-20 1994-10-28 France Reducteurs Sa Transmission device
US5601000A (en) * 1993-09-10 1997-02-11 Blanchard; Robert Gearbox with incorporated clutch for self-propelled machines
FR2822915A1 (en) * 2001-04-03 2002-10-04 Commerciale Et D Engineering S A transmission device between a motor drive shaft and a mower output shaft Mowers comprising such a device
FR2829091A1 (en) * 2001-08-29 2003-03-07 Commerciale Et D Engineering S Transmission between a driving member and a Dog Click nt shaft and equipped locomotive of such transmission
US6705961B2 (en) 2000-07-14 2004-03-16 Tecumseh Products Company Variable speed transmission and electronic speed control therefor

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2704287A1 (en) * 1993-04-20 1994-10-28 France Reducteurs Sa Transmission device
US5601000A (en) * 1993-09-10 1997-02-11 Blanchard; Robert Gearbox with incorporated clutch for self-propelled machines
US6705961B2 (en) 2000-07-14 2004-03-16 Tecumseh Products Company Variable speed transmission and electronic speed control therefor
FR2822915A1 (en) * 2001-04-03 2002-10-04 Commerciale Et D Engineering S A transmission device between a motor drive shaft and a mower output shaft Mowers comprising such a device
FR2829091A1 (en) * 2001-08-29 2003-03-07 Commerciale Et D Engineering S Transmission between a driving member and a Dog Click nt shaft and equipped locomotive of such transmission
US6789441B2 (en) 2001-08-29 2004-09-14 France Reducteurs Transmission between a motor member and a drive shaft and engine motor provided with such a transmission

Similar Documents

Publication Publication Date Title
US5515957A (en) Uni-directional transmission with positive engagement and disengagement features
FR2821652A1 (en) Gearbox friction cone coupling comprises multi-cone synchronization unit whose upper and intermediate rings rotate with hub and intermediate and lower rings rotate with idler pinion
FR2562969A1 (en) Sliding link device with fluting and application of this device to a clutch
US5000056A (en) Internal disc brake for transaxle
FR2556437A1 (en) Triple synchronisation device
EP0446087A1 (en) Control device for mechanical gearbox
EP0224407A1 (en) Gear transmission with one input shaft and two counter shafts
EP0322265A1 (en) Clutch control device, notably for motor vehicles
EP0957279A1 (en) Synchroniser with pre-energiser spring
EP1447581A1 (en) Synchronizer device for a mechanical gearbox.
EP1329651A1 (en) Control assembly for a robotised gearbox
FR2837246A1 (en) Coupling between electric machine rotor and IC engine gearbox main shaft in hybrid motor vehicle, has sleeve with toothed wheel to mesh with gear crown on electric machine rotor
JPH08200397A (en) Synchronizer for vehicle transmission
FR2740688A1 (en) Video-endoscope with flexible connection tube and adjustable head
EP0448457A1 (en) Device consisting of two synchronised, additional gear steps for a mechanical gear box
EP2055974A1 (en) Multi-cone synchronisation device designed to be installed on a gearbox shaft
EP0265297A1 (en) Differential transmission device, particularly for motor vehicles
FR2862366A1 (en) Transmissions gear ratio control device for motor vehicle, has jaw clutching unit integrated with control unit so that movement of control unit generates displacement of clutching unit in extension of shafts
FR2610058A1 (en) Power transmission device with speed reduction between a rotating assembly and a shaft mounted coaxially inside the latter
FR2810708A1 (en) Automobile transmission and torque converter comprises two friction clutch units, each controlling separate gearbox primary shafts, controlled by single clutch stop sliding on primary shaft
EP0303531A2 (en) Speed change transformer
EP1184585A1 (en) Device to maintain a thrust member in a hub of a synchroniser assembly for a motor vehicle
EP0321335A1 (en) Differential system with variable controlled slip
FR2851547A1 (en) Vehicle engine drive shaft and gear box driven shaft clutching/declutching device, has clutching/declutching module including two flywheel dampers, where center of module is realized by centre of washer through central pin
FR2609771A1 (en) A locking assembly for apparatus HYDROKINETIC and fluid coupling apparatus comprising such a lock assembly, especially for motor vehicle

Legal Events

Date Code Title Description
RE Withdrawal of published application