EP1787039A1 - Disques d'embrayage - Google Patents

Disques d'embrayage

Info

Publication number
EP1787039A1
EP1787039A1 EP05775299A EP05775299A EP1787039A1 EP 1787039 A1 EP1787039 A1 EP 1787039A1 EP 05775299 A EP05775299 A EP 05775299A EP 05775299 A EP05775299 A EP 05775299A EP 1787039 A1 EP1787039 A1 EP 1787039A1
Authority
EP
European Patent Office
Prior art keywords
side plates
plate
flange
friction
rotation
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Withdrawn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
EP05775299A
Other languages
German (de)
English (en)
Inventor
Paul Andrew Gallagher
Danilo Galeotti
Pietro Caracini
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.)
Automotive Products Italia SV SRL
Original Assignee
Automotive Products Italia SV SRL
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 Automotive Products Italia SV SRL filed Critical Automotive Products Italia SV SRL
Publication of EP1787039A1 publication Critical patent/EP1787039A1/fr
Withdrawn legal-status Critical Current

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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D13/00—Friction clutches
    • F16D13/58—Details
    • F16D13/60—Clutching elements
    • F16D13/64—Clutch-plates; Clutch-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
    • F16D13/00—Friction clutches
    • F16D13/58—Details
    • F16D13/60—Clutching elements
    • F16D13/64—Clutch-plates; Clutch-lamellae
    • F16D13/644—Hub construction
    • F16D13/646—Mounting of the discs on the hub
    • 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
    • F16D13/00—Friction clutches
    • F16D13/58—Details
    • F16D13/60—Clutching elements
    • F16D13/64—Clutch-plates; Clutch-lamellae
    • F16D13/68—Attachments of plates or lamellae to their supports
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
    • F16F15/121—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon using springs as elastic members, e.g. metallic springs
    • F16F15/123—Wound springs
    • F16F15/1232—Wound springs characterised by the spring mounting
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
    • F16F15/129—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon characterised by friction-damping 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D13/00—Friction clutches
    • F16D13/58—Details
    • F16D13/60—Clutching elements
    • F16D13/64—Clutch-plates; Clutch-lamellae
    • F16D2013/642—Clutch-plates; Clutch-lamellae with resilient attachment of frictions rings or linings to their supporting discs or plates for allowing limited axial displacement of these rings or linings

Definitions

  • This invention relates to vehicle driveline clutches and in particular to details of the driven plates of such clutches which are designed to be connected with a transmission input shaft and clamped between a pressure plate and an engine flywheel to transmit drive from the engine to the transmission.
  • torsion damping means for example in the form of torsionally acting springs and/or friction devices, to damp torsional vibrations which occur in the vehicle driveline.
  • a clutch driven plate comprising axially spaced first and second side plates, friction elements carried by one of the side plates, a hub flange located intermediate the side plates and rotatable with a hub for driving connection with an associated transmission shaft, circumferentially orientated springs acting between windows in the side plates and hub flange to resist circumferential rotation between the side plates and flange,
  • the driven plate being characterised in that an inner friction plate is rigidly fixed to one of the side plates for rotation therewith, an intermediate plate is rotatable with the hub flange in one direction of rotation only and is located between the inner friction plate and said one of the side plates, and an axially acting spring is located between the side plates tending to bias the inner friction plate towards the intermediate plate in order to generate frictional resistance to the relative rotation of the side plates and flange.
  • the inner friction plate is rigidly fixed to one of the side plates it must rotate at all times with that side plate without any delay so that the frictional resistance to the relative rotation between the side plates and the flange is generated immediately any such relative rotation occurs. Also, since the intermediate plate is driven with the hub flange in one direction of rotation only, the frictional resistance in the drive condition can be higher than the in the overdrive condition.
  • the inner friction plate may be formed as an integral part of an annular disc which carries the friction elements at its outer periphery.
  • the inner friction plate may be secured directly to the internal surface of one of the side plates by axially extending stop pins which secure the two side plates together.
  • the axially extending stop pins may extend through slots in the hub flange to limit the maximum relative rotation between the side plates and flange.
  • the intermediate plate may be provided with abutments which co-operate with abutments on the flange to drive the intermediate plate with the flange in said one direction of rotation only.
  • the axially acting spring may be located on the other side of the hub flange from the inner friction plate and the intermediate plate and acts towards the flange to bias a second friction plate which rotates with the other side plate into frictional contact with a friction member which rotates with the hub flange. This provides a further friction damping capability which acts in both the drive and overdrive modes.
  • Figure 1 shows an axial section through a clutch driven plate in accordance with the present invention
  • Figures 2, 3 & 4 show partially cutaway, the upper part of figure 1 viewed in the direction of arrow X in the static, drive and overdrive conditions respectively, and
  • Figure 5 shows the annular segmented disc used to support the friction elements and provide the inner friction plate of the invention.
  • the clutch driven plate 10 has a pair of first and second side plates 11 and 12 which are interconnected by stop pins 13 which extend through holes 13a and which carry friction elements 14 rivetted at 14a on opposite sides of a segmented annular disc 15 (shown in detail in figure 5). Side plates 11 and 12 are in turn mounted on a drive hub 16 via an annular plastics centring washer 17.
  • a segmented disc 15 is used with radial slots 15e which define individual axially corrugated arcuate segments 15f on which the friction elements are supported to provide an axially cushioned friction element arrangement
  • any form of disc may be used to support the friction elements 14 which may or may not be axially cushioned and which may be of continuous annular form or in the form of individual circumferential spaced friction elements.
  • Hub 16 supports a drive flange 18 which has an internal periphery with cut-outs 18a which mesh with teeth 16a on hub 16 to allow limited circumferential rotation of drive flange 18 relative to hub 16. This limited circumferential rotation is controlled by first circumferentially acting low rate compression springs 19. This construction provides the conventional so-called “idle rattle” damping centre.
  • Drive flange 18 is connected with side plates 11 and 12 via second higher rate main drive springs 20 which extend in windows 21 in side plates 11 and 12 and corresponding windows 22 and 23 in flange 18 and disc 15 respectively.
  • the segmented annular disc 15 has formed at its inner periphery an inner friction plate 25 which is in the form of four arcuate components 25a, 25b, 25c and 25d. These components can be provided with, for example, sintered friction material or specific surface treatments on one or both axially facing sides to provide the required friction.
  • segmented disc 15 is riveted to side plate 11 by stop pins 13 so that the friction plate 25, made up from components 25a to 25d, is rigidly fixed to the side plate and rotates at all times therewith.
  • an intermediate friction plate 26 which is supported on centring washer 17 and provided with axially projecting lugs 27 which extend into the windows 22 of drive flange 18 adjacent the ends 22a of these windows.
  • a second plastics friction washer 28 is provided which rotates with the flange 18 via projections 17a on washer 17 which extend through opening 18b in flange 18 to engage openings 28a in washer 28.
  • a second friction plate 29 is keyed for rotation with the other side plate
  • Figure 2 shows the driven plate in its static position in which the stop pins 13 are located at an intermediate position in slots 24.
  • the slots 24 have a greater extent X in the "drive” direction than their extent Y in the “overdrive” direction thus more relative rotation is allowed between the side plates 11 and 12 and the flange 18 in the "drive” mode than in the "overdrive” mode as will be explained briefly below.
  • the main drive springs 20 are not compressed.
  • the friction elements 14 and connected disc 15 and side plates 11 and 12 tend to rotate relative to the drive flange 18 and the output hub 16 so that the main drive springs 20 are compressed as the stop pins 13 move along slots 24 to the figure 3 position in which they limit any further relative rotation between the side plates 11 and 12 and the drive flange 18 by contact with the ends 24a of the slots.
  • the lugs 27 on the intermediate friction plate 26 are trapped against the end 22a of window 22 so that the intermediate friction plate is rotated with the drive flange 18.
  • segmented friction disc is at all times rigidly connected with the side plates 11 and 12, friction is always generated immediately there is any relative movement in the drive direction between the segmented disc 15 and the contacting components 26 and 17.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

L'invention concerne un disque d'embrayage (10) qui comprend une première et une deuxième plaque latérale espacées axialement (11,12) et des éléments de frottement (14) portés par une (11) des plaques latérales. Une flasque (18) de moyeu est positionnée entre les plaque latérales et est montée rotative sur un moyeu (16) afin d'entraîner une connexion avec un arbre de transmission associé, et des ressorts orientés de manière circonférentielle (20) sont actionnés entre des fenêtres (21) dans les plaques latérales et la flasque de moyeu pour résister à la rotation circonférentielle entre les plaques latérales et la flasque. Une plaque de frottement intérieure (25) est fixée de manière rigide sur une des plaques latérales afin de tourner autour de celle-ci, et une plaque intermédiaire (26) est montée rotative sur la flasque de moyeu dans un sens de rotation seulement et est positionnée entre la plaque de frottement intérieure (25) et une desdites plaques (11). Un ressort à mouvement axial (32) positionné entre les plaques latérales tend à solliciter la plaque de frottement intérieure (25) vers la plaque intermédiaire (26) afin de générer une résistance au frottement entre les plaques latérales (11,12) et la flasque (18) lors de la rotation relative de ces dernières.
EP05775299A 2004-09-09 2005-08-31 Disques d'embrayage Withdrawn EP1787039A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0419941.0A GB0419941D0 (en) 2004-09-09 2004-09-09 Clutch driven plates
PCT/GB2005/003348 WO2006027552A1 (fr) 2004-09-09 2005-08-31 Disques d'embrayage

Publications (1)

Publication Number Publication Date
EP1787039A1 true EP1787039A1 (fr) 2007-05-23

Family

ID=33186670

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05775299A Withdrawn EP1787039A1 (fr) 2004-09-09 2005-08-31 Disques d'embrayage

Country Status (3)

Country Link
EP (1) EP1787039A1 (fr)
GB (2) GB0419941D0 (fr)
WO (1) WO2006027552A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3041053B1 (fr) * 2015-09-14 2017-09-15 Valeo Embrayages Disque de friction, notamment pour vehicule automobile
CN108730364B (zh) * 2017-04-19 2022-04-05 舍弗勒技术股份两合公司 离合器从动盘总成及离合器
FR3114366B1 (fr) * 2020-09-24 2022-10-14 Valeo Embrayages Amortisseur de torsion pour une chaîne de transmission de véhicule

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2276416A (en) * 1939-07-15 1942-03-17 Borg Warner Clutch plate
FR2162702A5 (fr) * 1971-11-29 1973-07-20 Ferodo Sa
FR2370902A1 (fr) * 1976-11-15 1978-06-09 Ferodo Sa Dispositif amortisseur de torsion, notamment pour embrayage de vehicule automobile, et sous-ensemble unitaire propre a la constitution d'un tel dispositif

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006027552A1 *

Also Published As

Publication number Publication date
GB2432401A (en) 2007-05-23
GB0419941D0 (en) 2004-10-13
GB2432401B (en) 2008-12-03
WO2006027552A1 (fr) 2006-03-16
GB0703115D0 (en) 2007-03-28

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