WO1986002133A1 - Embrayage a friction a engagement differentiel, commande par un accouplement visqueux fonctionnant en parallele - Google Patents

Embrayage a friction a engagement differentiel, commande par un accouplement visqueux fonctionnant en parallele Download PDF

Info

Publication number
WO1986002133A1
WO1986002133A1 PCT/EP1985/000465 EP8500465W WO8602133A1 WO 1986002133 A1 WO1986002133 A1 WO 1986002133A1 EP 8500465 W EP8500465 W EP 8500465W WO 8602133 A1 WO8602133 A1 WO 8602133A1
Authority
WO
WIPO (PCT)
Prior art keywords
friction clutch
spring
viscous
viscous coupling
force
Prior art date
Application number
PCT/EP1985/000465
Other languages
German (de)
English (en)
Inventor
Alfred Magg
Walter Griesser
Original Assignee
Zahnradfabrik Friedrichshafen Ag
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 Zahnradfabrik Friedrichshafen Ag filed Critical Zahnradfabrik Friedrichshafen Ag
Publication of WO1986002133A1 publication Critical patent/WO1986002133A1/fr

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
    • F16H48/00—Differential gearings
    • F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
    • F16H48/22—Arrangements for suppressing or influencing the differential action, e.g. locking devices using friction clutches or brakes
    • 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
    • F16D35/00—Fluid clutches in which the clutching is predominantly obtained by fluid adhesion
    • F16D35/005—Fluid clutches in which the clutching is predominantly obtained by fluid adhesion with multiple lamellae
    • 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
    • F16D43/00—Automatic clutches
    • F16D43/02—Automatic clutches actuated entirely mechanically
    • F16D43/20—Automatic clutches actuated entirely mechanically controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure
    • F16D43/21—Automatic clutches actuated entirely mechanically controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure with friction members
    • F16D43/213—Automatic clutches actuated entirely mechanically controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure with friction members with axially applied torque-limiting friction surfaces
    • F16D43/215—Automatic clutches actuated entirely mechanically controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure with friction members with axially applied torque-limiting friction surfaces with flat friction surfaces, e.g. discs
    • F16D43/216—Automatic clutches actuated entirely mechanically controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure with friction members with axially applied torque-limiting friction surfaces with flat friction surfaces, e.g. discs with multiple lamellae
    • 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
    • F16D47/00—Systems of clutches, or clutches and couplings, comprising devices of types grouped under at least two of the preceding guide headings
    • F16D47/06—Systems of clutches, or clutches and couplings, comprising devices of types grouped under at least two of the preceding guide headings of which at least one is a clutch with a fluid or a semifluid as power-transmitting means
    • 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
    • F16H48/00—Differential gearings
    • F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
    • F16H48/26—Arrangements for suppressing or influencing the differential action, e.g. locking devices using fluid action, e.g. viscous clutches

Definitions

  • the invention relates to a friction clutch according to the preamble of the main claim.
  • a friction clutch according to US Pat. No. 4,048,872 is controlled by the pressure in the viscous clutch, which increases with temperature.
  • the temperature and pressure in the viscous clutch and, as a result, the locking torque of the friction clutch increase with increasing relative speed and thus increasing friction power of the viscous clutch, but only slowly because of the storage effect of the components of the viscous clutch to be heated.
  • a desired large locking torque is built up only slowly and, when the wheel subsequently reaches non-slip ground, is only slowly reduced again.
  • the invention has for its object to provide a friction clutch according to the preamble of the main claim, which on the one hand allows as free as possible speed compensation when cornering on a grippy road, on the other hand generates a large locking torque as quickly as possible when a wheel begins to spin, and, if the wheel then again reaches non-slip ground, free speed compensation is allowed again just as quickly.
  • Claim 2 adds the advantage of a particularly simple construction without additional components.
  • Claim 3 adds the known advantage of a particularly great ease of movement with the little additional effort of the rolling elements which are interposed.
  • Claim 4 adds the advantage that the conversion of the torque of the viscous clutch into an axial force of the actuator and thus into a torque of the friction clutch takes place with the known toggle lever reinforcement.
  • Claim 5 adds the advantage that the difference between the axial force of the actuator and the restoring force of the degressive plate spring known per se and thus the closing force for the friction clutch and thus the torque of the friction clutch are particularly large. The jump in torque when switching over the friction clutch is also particularly large.
  • Fig. 5 shows a section of an axially parallel section.
  • a connecting shaft 1 and a connecting bell 2 are non-positively connected via disk packs 3, 4 of a friction clutch 5 and a viscous clutch 6.
  • the viscous coupling 6 generates a torque that increases with the speed difference between the connecting shaft 1 and the connecting bell 2.
  • An inner disk carrier 7 of the viscous clutch 6 is axially fixed and rotatably connected to the connecting shaft 1 by a locking ring 24.
  • a pressure plate 8 is connected to the connecting shaft 1 in a rotationally fixed and axially displaceable manner by driving teeth 25.
  • the inner disk carrier 7 of the viscous coupling 6 has axial cams 9 with flanks 16 which plunge into axial locking grooves 10 with flanks 15 of the pressure plate 8.
  • the torque of the viscous coupling 6 generates an axial force via the cams 9 and locking grooves 10; if this axial force exceeds the pretensioning force M of the plate spring 11, then the inner disk carrier 7 of the viscous coupling 6 rotates relative to the connecting shaft 1, and is displaced via the cams 9 and locking grooves 10, the pressure plate 8 axially against the plate spring 11 and against an end plate 13 of the disk set 3 of the friction clutch 5, and the friction clutch 5 is closed.
  • Fig. 5 shows an embodiment according to claim 4 with winter bearings 18, 19 on the actuator 8 and on the element 7 of the viscous coupling 6 and with interposed toggle elements 22, which are connected in pairs by a tension spring 23, in order to mount them in the winter bearings 18, 19 hold. 7 "

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Operated Clutches (AREA)
  • Electrodes For Compound Or Non-Metal Manufacture (AREA)

Abstract

Un embrayage à friction à engagement différentiel, muni d'un élément déplaçable dans le sens axial et un ressort (11) pour ouvrir l'embrayage à friction, dans lequel l'élément d'actionnement (8) est commandé par un accouplement visqueux (6) fonctionnant en parallèle à l'embrayage à friction (5), possèdant un couple qui augmente avec la différence de la vitesse de rotation. Le couple de l'accouplement visqueux (6) crée, au moyen de cames (9) sur un support à lamelles internes (7) et de rainures d'engagement (10) sur une plaque de pression (8), une force axiale qui, en cas de dépassement d'une force de pre-contrainte (M) du ressort, déplace un disque d'extrémité (13) d'une série de lamelles (3) dans l'embrayage à friction (5) et ferme ce dernier.
PCT/EP1985/000465 1984-09-26 1985-09-13 Embrayage a friction a engagement differentiel, commande par un accouplement visqueux fonctionnant en parallele WO1986002133A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP8400295 1984-09-26
LUPCT/EP84/00295 1984-09-26

Publications (1)

Publication Number Publication Date
WO1986002133A1 true WO1986002133A1 (fr) 1986-04-10

Family

ID=8164973

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1985/000465 WO1986002133A1 (fr) 1984-09-26 1985-09-13 Embrayage a friction a engagement differentiel, commande par un accouplement visqueux fonctionnant en parallele

Country Status (4)

Country Link
EP (1) EP0218598A1 (fr)
AU (1) AU583480B2 (fr)
DE (1) DE3532745A1 (fr)
WO (1) WO1986002133A1 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0193160A2 (fr) * 1985-02-25 1986-09-03 Tochigifujisangyo Kabushikikaisha Dispositif de transmission de puissance
GB2195747A (en) * 1986-08-20 1988-04-13 Honda Motor Co Ltd Car etc. transmission with viscous clutch
EP0314420A1 (fr) * 1987-10-24 1989-05-03 Toyota Jidosha Kabushiki Kaisha Unité d'embrayage à frottement visqueux pour transmission de couple dans une automobile
EP0315200A1 (fr) * 1987-11-05 1989-05-10 Viscodrive Japan Ltd Appareil de transmission de puissance
US4848506A (en) * 1986-06-30 1989-07-18 Honda Giken Kogyo Kabushiki Kaisha Drive power transmission device
FR2630800A1 (fr) * 1988-04-27 1989-11-03 Viscodrive Gmbh Differentiel a roues coniques, a blocage automatique limite, notamment pour vehicules automobiles
EP0612929A2 (fr) * 1993-02-26 1994-08-31 Honda Giken Kogyo Kabushiki Kaisha Dispositif de transmission
DE19650040A1 (de) * 1995-12-21 1997-06-26 Gkn Viscodrive Gmbh Kupplungseinheit
EP0881406A3 (fr) * 1997-05-30 1999-03-17 Eaton Corporation Embrayage à billes et rampes actionnée par fluide visqueux
US5890573A (en) * 1995-12-21 1999-04-06 Gkn Viscodrive Gmbh Coupling unit having at least one viscous coupling and one friction coupling
WO2000043691A1 (fr) 1999-01-22 2000-07-27 Gkn Automotive Ag Embrayage regulable
DE4343048B4 (de) * 1992-12-22 2006-10-12 Dana Corp., Toledo Differential mit begrenztem Schlupf

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU583627B2 (en) * 1985-05-07 1989-05-04 Eltech Systems Corporation Expanded metal mesh and coated anode structure
AU649541B2 (en) * 1991-05-08 1994-05-26 Dana Corporation Hydraulic slider coupling
JP3295700B2 (ja) * 1991-05-08 2002-06-24 ダナ・コーポレイション 油圧スライダ継手
US5967276A (en) * 1997-05-30 1999-10-19 Eaton Corporation Viscous actuated ball ramp clutch and improved housing therefor
DE19918411C2 (de) * 1999-04-23 2001-03-29 Gkn Viscodrive Gmbh Steuerbare Viscokupplung

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB171176A (en) * 1920-08-11 1921-11-11 Arnold Ray Improvements relating to friction clutches
US2587712A (en) * 1945-09-29 1952-03-04 Adiel Y Dodge Overload released clutch
US3236346A (en) * 1963-05-15 1966-02-22 Eaton Mfg Co Shear type fluid coupling
FR2074860A5 (fr) * 1970-01-27 1971-10-08 Trw Inc
DE2209879A1 (de) * 1971-03-02 1972-09-07 GKN Transmissions Ltd., Erdington, Birminghamshire (Großbritannien) Vorrichtung zur Drehmoment-Übertragung
US4048872A (en) * 1974-05-28 1977-09-20 Gkn Transmissions Limited Control couplings
GB1491203A (en) * 1974-10-21 1977-11-09 Volvo Ab Devices for limiting torsional shocks

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4203810A (en) * 1970-03-25 1980-05-20 Imi Marston Limited Electrolytic process employing electrodes having coatings which comprise platinum
US4098669A (en) * 1976-03-31 1978-07-04 Diamond Shamrock Technologies S.A. Novel yttrium oxide electrodes and their uses
JPS58171589A (ja) * 1982-03-31 1983-10-08 Ishifuku Kinzoku Kogyo Kk 電解用電極及びその製造方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB171176A (en) * 1920-08-11 1921-11-11 Arnold Ray Improvements relating to friction clutches
US2587712A (en) * 1945-09-29 1952-03-04 Adiel Y Dodge Overload released clutch
US3236346A (en) * 1963-05-15 1966-02-22 Eaton Mfg Co Shear type fluid coupling
FR2074860A5 (fr) * 1970-01-27 1971-10-08 Trw Inc
DE2209879A1 (de) * 1971-03-02 1972-09-07 GKN Transmissions Ltd., Erdington, Birminghamshire (Großbritannien) Vorrichtung zur Drehmoment-Übertragung
US4048872A (en) * 1974-05-28 1977-09-20 Gkn Transmissions Limited Control couplings
GB1491203A (en) * 1974-10-21 1977-11-09 Volvo Ab Devices for limiting torsional shocks

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0193160A3 (en) * 1985-02-25 1988-10-12 Tochigi Fuji Sangyo Kk Power transmission apparatus
EP0193160A2 (fr) * 1985-02-25 1986-09-03 Tochigifujisangyo Kabushikikaisha Dispositif de transmission de puissance
US4848506A (en) * 1986-06-30 1989-07-18 Honda Giken Kogyo Kabushiki Kaisha Drive power transmission device
GB2195747A (en) * 1986-08-20 1988-04-13 Honda Motor Co Ltd Car etc. transmission with viscous clutch
US4829849A (en) * 1986-08-20 1989-05-16 Honda Giken Kogyo Kabushiki Kaisha Power transmission system for vehicles
GB2195747B (en) * 1986-08-20 1990-07-25 Honda Motor Co Ltd Power transmission system for vehicles
EP0314420A1 (fr) * 1987-10-24 1989-05-03 Toyota Jidosha Kabushiki Kaisha Unité d'embrayage à frottement visqueux pour transmission de couple dans une automobile
EP0315200A1 (fr) * 1987-11-05 1989-05-10 Viscodrive Japan Ltd Appareil de transmission de puissance
US4899859A (en) * 1987-11-05 1990-02-13 Tochigifujisangyo Kabushiki Kaisha Power transmission apparatus
FR2630800A1 (fr) * 1988-04-27 1989-11-03 Viscodrive Gmbh Differentiel a roues coniques, a blocage automatique limite, notamment pour vehicules automobiles
DE4343048B4 (de) * 1992-12-22 2006-10-12 Dana Corp., Toledo Differential mit begrenztem Schlupf
EP0612929A2 (fr) * 1993-02-26 1994-08-31 Honda Giken Kogyo Kabushiki Kaisha Dispositif de transmission
US5464084A (en) * 1993-02-26 1995-11-07 Honda Giken Kogyo Kabushiki Kaisha Main clutch connecting system having a pilot clutch
EP0612929A3 (fr) * 1993-02-26 1995-02-22 Honda Motor Co Ltd Dispositif de transmission.
DE19650040A1 (de) * 1995-12-21 1997-06-26 Gkn Viscodrive Gmbh Kupplungseinheit
DE19650039A1 (de) * 1995-12-21 1997-06-26 Gkn Viscodrive Gmbh Kupplungseinheit mit mindestens einer Viskokupplung und einer Reibkupplung
US5890573A (en) * 1995-12-21 1999-04-06 Gkn Viscodrive Gmbh Coupling unit having at least one viscous coupling and one friction coupling
DE19650040C2 (de) * 1995-12-21 1999-04-15 Gkn Viscodrive Gmbh Kupplungseinheit
EP0881406A3 (fr) * 1997-05-30 1999-03-17 Eaton Corporation Embrayage à billes et rampes actionnée par fluide visqueux
WO2000043691A1 (fr) 1999-01-22 2000-07-27 Gkn Automotive Ag Embrayage regulable
DE19902388A1 (de) * 1999-01-22 2000-08-17 Gkn Automotive Ag Steuerbare Kupplung
DE19902388C2 (de) * 1999-01-22 2001-05-23 Gkn Automotive Ag Steuerbare Kupplung

Also Published As

Publication number Publication date
EP0218598A1 (fr) 1987-04-22
DE3532745A1 (de) 1986-04-03
AU3433784A (en) 1986-04-08
AU583480B2 (en) 1989-05-04

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