WO2014012539A1 - Dispositif à butée de débrayage - Google Patents

Dispositif à butée de débrayage Download PDF

Info

Publication number
WO2014012539A1
WO2014012539A1 PCT/DE2013/200046 DE2013200046W WO2014012539A1 WO 2014012539 A1 WO2014012539 A1 WO 2014012539A1 DE 2013200046 W DE2013200046 W DE 2013200046W WO 2014012539 A1 WO2014012539 A1 WO 2014012539A1
Authority
WO
WIPO (PCT)
Prior art keywords
release bearing
coil spring
spring
bearing
housing
Prior art date
Application number
PCT/DE2013/200046
Other languages
German (de)
English (en)
Inventor
Mario Willian Privatti
Original Assignee
Schaeffler Technologies AG & Co. KG
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 Schaeffler Technologies AG & Co. KG filed Critical Schaeffler Technologies AG & Co. KG
Publication of WO2014012539A1 publication Critical patent/WO2014012539A1/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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
    • F16D23/12—Mechanical clutch-actuating mechanisms arranged outside the clutch as such
    • F16D23/14—Clutch-actuating sleeves or bearings; Actuating members directly connected to clutch-actuating sleeves or bearings
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C25/00—Bearings for exclusively rotary movement adjustable for wear or play
    • F16C25/06—Ball or roller bearings
    • F16C25/08—Ball or roller bearings self-adjusting
    • F16C25/083—Ball or roller bearings self-adjusting with resilient means acting axially on a race ring to preload the bearing
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
    • F16C19/16—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
    • F16C19/163—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls with angular contact
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2361/00—Apparatus or articles in engineering in general
    • F16C2361/43—Clutches, e.g. disengaging bearing

Definitions

  • the invention relates to a Aus Weglageran extract for a preferably hydraulically actuated clutch, comprising a release bearing, which is over a spring element, which is counter-mounted on a housing relative to which the release bearing is movable, is biased.
  • the release bearing assembly comprises a release bearing, usually a roller bearing, with an outer ring and an inner ring.
  • the inner ring is set, for example, in an embodiment of Ausschreiblageran angel as a concentric slave cylinder (usually CSC (concentric slave cylinder)) on a mounting ring which serves as a piston in a hydraulically actuated clutch release bearing and can be moved axially via a hydraulic actuating means to the clutch actuate.
  • the release bearing via a spring element, usually a coil spring, axially biased.
  • the coil spring is supported at one end on a positionally fixed housing of Ausschlageranaku, the other spring end is coupled to the release bearing, for example via a support ring, which in turn is coupled to the inner ring.
  • a release bearing arrangement is known for example from DE 199 44 083 A1.
  • a bellows is usually provided which extends between the housing and the release bearing.
  • On the housing side it is arranged on a corresponding holding receptacle, and the release bearing side, for example, a corresponding receptacle for the bellows is provided on the support ring, so that it can be fixedly arranged on both elements and can accompany the relative movement of the release bearing to the housing.
  • the spring element is a wound from a tape, overlapping turns having conical helical spring.
  • the invention provides the use of a conical, wound from a tape coil spring, wherein the tape is wound so that the individual turns overlap. This results in a radially closed configuration. If such a wound from the rectangular cross-section band coil spring between the housing and release bearing, so with this one component fulfills two functions. On the one hand, the required preload is generated by the spring. On the other hand, the spring at the same time forms a contamination protection, after it represents a radially closed component due to the winding of the rectangular band with the overlapping windings, which despite intrinsically given mobility of the turns relative to each other is a closed appearance.
  • the coil spring thus fulfills the function of the bellows used in the prior art, which can now be omitted in the release bearing assembly according to the invention.
  • a bearing portion is expediently provided, on which the coil spring rests flush circumferentially.
  • This bearing section can be realized either by means of an integrally formed on the inner ring, the coil spring radially and / or axially supporting bearing collar, d. h., that the bearing ring is formed from home so that he offers the corresponding spring seat.
  • a separate, the coil spring radially and / or axially supportive bearing component, in particular a ring can be arranged on the inner ring.
  • the radial support is not mandatory after the coil spring has a sufficient intrinsic stability due to their formation by the wound, rectangular in the right-hand cross-section band.
  • a suitable bearing receptacle in particular a circumferential recess provided, in which the coil spring is received, where it is supported there at least axially, but in addition can also be supported radially.
  • the coil spring itself is preferably wound from a spring steel strip, but in principle also conceivable is a winding of a corresponding plastic-based material or composite material.
  • FIG. 1 shows a partial view in section through a release bearing arrangement according to the invention of a first embodiment
  • Figure 2 is a perspective view of a conical coil spring wound from a spring steel strip
  • FIG. 3 shows a partial view in section of a release bearing arrangement according to the invention of a second embodiment.
  • Figure 1 shows a schematic representation in section of a release bearing assembly 1 according to the invention, comprising a release bearing 2 with an outer ring 3 and an inner ring 4 and between them rolling balls 5.
  • the release bearing 2 is via a radially inwardly directed flange 6 of the inner ring 4 on a piston 7, which is moved axially via a not shown here closer hydraulic actuating means for actuating the clutch, fixed in a conventional manner.
  • the piston 7 is in a cylindrical ring 8 which is formed on a housing 9 which is fixed in position, axially movable, with him also the release bearing. 2
  • a spring element 10 is provided, which extends between the housing 9 and the release bearing 2.
  • the spring element 10 is a conical coil spring 1 1, which is wound from a rectangular cross-section metal strip, preferably a spring steel strip.
  • the individual turns 13 are such that they overlap one another.
  • the windings 13 may be guided so that they are spaced in the overlap region over a minimum gap, but they may also abut each other, wherein the winding is such that the lowest possible friction between the individual overlap regions results.
  • the spring may be provided on the outside with a sliding coating 12 on which the windings slide in the overlapping area.
  • the coil spring 1 1 thus fulfills two functions. On the one hand it pretensions the release bearing 2, on the other hand it forms a pollution protection, d. h., That the conical coil spring 1 1, the underlying area, in particular the area in which the movable elements are guided relative to one another, encapsulates. In other words, a single component thus fulfills the dual function which hitherto in the prior art has fulfilled two separate components.
  • the helical spring 1 which is shown in detail in an enlarged view as a perspective view in Fig. 2, each has flat ends 14, 15, with which the is mounted flush with corresponding bearing portions on the thrust bearing 2 and the housing 9.
  • a bearing collar 16 which extends radially outwards, is formed on the inner ring 4, on which the helical spring can be seen to be axially supported.
  • This bearing collar 16 is thus integral with the inner ring. 4
  • a corresponding recess 17 is formed, in which the end 15 of the coil spring 1 1 is received and is axially supported there, wherein in this embodiment, a radial support is given. D. h., That the coil spring end 15 can be radially fixed there easily clamped.
  • FIG. 2 shows, as described, the helical spring 11 in a perspective view. It can be clearly seen how the individual turns 13 overlap, so that the quasi-tubular conical shape results, which is radially outwardly closed, so that the coil spring 1 1 can provide the capsule or dirt protection function.
  • FIG. 3 finally shows a second embodiment of a release bearing assembly 1, also comprising a release bearing 2 and a housing 9.
  • a spring element 10 is provided in the form of a conical helical spring 1 1, the turns 13 overlap.
  • the helical spring 1 1 is supported here with its release bearing end 14 on a bearing component 18 arranged on the inner ring 4 in the form of a circumferential ring 19.
  • the ring 19 is fixed to the inner ring 4 with an axial flange 20 engaging under the inner ring 4. It has a radial flange 21 and a further axial flange 22. At the radial flange 21, the spring element 1 1 is axially and radially supported on the axial flange 22.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

L'invention concerne un dispositif à butée de débrayage (1) pour un embrayage, de préférence, à commande hydraulique, comprenant une butée de débrayage (2) précontrainte par un élément élastique (10) qui est plaqué contre un boîtier (9) par rapport auquel la butée de débrayage (2) est mobile, l'élément élastique (10) étant un ressort hélicoïdal (11) conique se présentant sous la forme d'une bande enroulée dont les tours (13) se chevauchent.
PCT/DE2013/200046 2012-07-18 2013-07-12 Dispositif à butée de débrayage WO2014012539A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012212539.6 2012-07-18
DE102012212539.6A DE102012212539A1 (de) 2012-07-18 2012-07-18 Ausrücklageranordnung

Publications (1)

Publication Number Publication Date
WO2014012539A1 true WO2014012539A1 (fr) 2014-01-23

Family

ID=48914025

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2013/200046 WO2014012539A1 (fr) 2012-07-18 2013-07-12 Dispositif à butée de débrayage

Country Status (2)

Country Link
DE (1) DE102012212539A1 (fr)
WO (1) WO2014012539A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017218512A1 (de) * 2017-10-17 2019-04-18 Zf Friedrichshafen Ag Betätigungseinrichtung mit Schmutzabschirmung

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015220858A1 (de) 2014-10-27 2016-04-28 Schaeffler Technologies AG & Co. KG Vorlastfeder für einen Nehmerzylinder

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB238107A (en) * 1924-11-22 1925-08-13 Brown Lipe Gear Co Improvements in or relating to friction clutches
DE4100950A1 (de) * 1991-01-15 1992-07-16 Kugelfischer G Schaefer & Co Hydraulische kupplungsbetaetigungseinrichtung
WO1998030810A1 (fr) * 1997-01-10 1998-07-16 Automotive Products (Usa) Inc. Actionneur d'embrayage hydraulique a soufflet et ressort combines
WO2008026991A1 (fr) * 2006-09-01 2008-03-06 Scania Cv Ab (Publ) Dispositif de protection télescopique pour une tige de piston de frein et véhicule

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19944083A1 (de) 1999-09-15 2001-04-12 Fte Automotive Gmbh Zentralausrücker für eine hydraulische Kupplungsbetätigung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB238107A (en) * 1924-11-22 1925-08-13 Brown Lipe Gear Co Improvements in or relating to friction clutches
DE4100950A1 (de) * 1991-01-15 1992-07-16 Kugelfischer G Schaefer & Co Hydraulische kupplungsbetaetigungseinrichtung
WO1998030810A1 (fr) * 1997-01-10 1998-07-16 Automotive Products (Usa) Inc. Actionneur d'embrayage hydraulique a soufflet et ressort combines
WO2008026991A1 (fr) * 2006-09-01 2008-03-06 Scania Cv Ab (Publ) Dispositif de protection télescopique pour une tige de piston de frein et véhicule

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017218512A1 (de) * 2017-10-17 2019-04-18 Zf Friedrichshafen Ag Betätigungseinrichtung mit Schmutzabschirmung
US11473632B2 (en) 2017-10-17 2022-10-18 Zf Friedrichshafen Ag Actuating device with dirt shielding

Also Published As

Publication number Publication date
DE102012212539A1 (de) 2014-01-23

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