EP2027394A1 - Kupplungsausrücklager - Google Patents
KupplungsausrücklagerInfo
- Publication number
- EP2027394A1 EP2027394A1 EP07729133A EP07729133A EP2027394A1 EP 2027394 A1 EP2027394 A1 EP 2027394A1 EP 07729133 A EP07729133 A EP 07729133A EP 07729133 A EP07729133 A EP 07729133A EP 2027394 A1 EP2027394 A1 EP 2027394A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- release bearing
- clutch release
- ribs
- rib
- spring tongues
- 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- Withdrawn
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
- F16D23/143—Arrangements or details for the connection between the release bearing and the diaphragm
Definitions
- the invention relates to a clutch release bearing, which is by means of a thrust washer in contact with spring tongues of a plate spring, circumferentially distributed on the thrust washer arranged ribs positively engage in radial gaps between immediately circumferentially adjacent to each other spring tongues.
- the positive connection between the thrust washer and the spring tongues of the plate spring of the clutch prevents circumferentially relative movements about the axis of rotation between the spring tongues and the thrust washer and thus prevents slippage between the plate spring and acting on the plate spring bearing ring of the clutch release bearing.
- a clutch release bearing of the generic type is described in a published by DE 37 43 853 A1 application of the applicant.
- DE 37 43 853 A1 describes a clutch release bearing which is arranged on a sliding sleeve and which has two concentrically arranged races. Rolling elements are arranged between the races.
- a thrust washer between the inner ring and the spring tongues is arranged.
- the thrust washer is provided with radially extending ribs. In each case one of the ribs engages positively in each case a slot between two adjacent spring tongue ends.
- the object of the invention is therefore to provide a clutch release bearing, which can be easily installed, the contact disk is free from premature wear and operates quietly over the entire service life of the clutch.
- the clutch release bearing which is in contact with spring tongues of a disk spring by means of a thrust washer, has a thrust washer on which one side, two or more ribs are arranged on the starting disk on the starting disk.
- the invention is applicable to all common types of clutch release bearing having a thrust washer pressure loaded with a clutch actuator spring. These are, for example, the self-centering Kupplungsaus Wegla- ger, which radial offset between the axis of rotation of the clutch release bearing and the axis of rotation of the clutch is compensated. These are also self-centering and at the same time self-adjusting clutch release bearing, which compensate in addition to the aforementioned axial offset and tilting and inclinations of the aforementioned axes to each other articulated.
- Under ribs are all protruding from a surface protrusions to understand that are suitable to intervene positively in at least one slot between two immediately circumferentially adjacent to each other of the spring tongues of the disc spring. It is conceivable that a plurality of radially successively aligned and thereby radially separated projections in a common slot or of several of the projections engages each in a different one of more of the slots. Preferably, however, are provided radially on the axis of rotation of the clutch release bearing to and from this aligned ribs, one of which engages in one of at least two of the slots.
- the ribs project away from the thrust washer in the radial and / or axial direction or in directions which are predetermined by axial and radial direction vectors, but are preferably aligned in the axial direction with respect to the rotational axis of the clutch release bearing.
- the ribs protrude from the surface of the thrust washer and thus project beyond them.
- the ribs are formed in an end-side circumferential groove or similar end-side depressions of the thrust washer and thus protrude beyond the base of the recess / groove, but not alternatively alternatively from the circumferential groove / depression beyond the surface of the thrust washer.
- releasably engaging in slots means a detachable To understand interlocking engagement with game.
- a movement play is formed between each of the form-fitting engaging in one of the slots ribs and at least one of the slot circumferentially opposed spring tongues at least in the circumferential direction or tangential direction.
- the rib bears against the opposite spring tongue.
- the movement play is the sum of the two distances from the rib to the respective spring tongue.
- the rib is thus limited in the slot between the opposing spring tongues so movable that slip can occur, especially in new vehicles, initially between the spring tongues and the bearing ring of the release bearing.
- this slippage is in the size of the movement game and thus low, barely noticeable and thus not promoting wear.
- the invention enables the force-free self-centering of the clutch release bearing when the respective rib can not jam in the slot even with extreme deviations of the dimensions, the shape and the position of the components of the clutch from the target value.
- An embodiment of the invention therefore provides that the degree of play is at least as large as a maximum sum of possibly also influencing greatest dimensional, shape and position deviations of assemblies and components of the clutch arrangement of the setpoint, directly or from them
- This largest sum is formed from the extreme values of deviations of the individual measures and dimensional chains, etc., and is the largest negative or positive value from the largest and smallest values, which in the slot to the unfavorable dimensional, positional or shape deviations from the nominal value between the rib and the slot.
- the width a max of the respective rib and the deviations in shape and position from the predetermined desired values in any slot provided for the engagement are preferably dimensioned such that even with extreme radial displacement x max of the rotational axis of the release bearing to the center axis of the Clutch,
- Ribs or spring tongues are arranged circumferentially to each other,
- division is to be understood as meaning the ratio with which the ribs or the spring tongues are distributed over the circumference of an entire circle in relation to a full angle of 360 °, which is defined mathematically according to the mathematical definition, and thus are arranged to each other.
- the radially diverging from the axis of rotation and aligned with the radially oriented longitudinal axis of the respective rib imaginary graduation planes / longitudinal axes of the radially radially extending ribs in this case are thus inclined to each other by 120 °.
- the movement play also takes into account changes during the coupling operation. Such changes are, for example, the thermal expansion of the individual components, the swelling or shrinking and aging of material, in particular the plastic of the thrust washer and the wear of the components.
- a preferred embodiment of the invention provides that the movement play is at least two tenths of a millimeter larger than the sum of the deviations from the dimensional, shape and bearing of the components.
- the clutch release bearing can be mounted in an unsuitable position with regard to the position of the ribs.
- the ribs and the slots rotate a short distance at the latest at the first actuation of the rotating clutch with slip against each other until the ribs protrude from the slots and engage positively in the respective slot.
- An excessively long rib usually does not permit a non-directional mounting, since the axial installation space in the coupling arrangement is not available for this purpose.
- the clutch release bearing according to the invention are also applicable in couplings with disc springs, in which narrow slots are provided between some of the adjacent spring tongues and, however, wide slots are formed between other adjacent spring tongues.
- the width of the ribs and thus the movement play is designed according to an embodiment of the invention adapted to the wider slots.
- the ribs in this case are wider than the narrow slots, so that the ribs can not dive into the narrow slots but only into the wide slots.
- the ribs and the slots rotate at the latest at the first actuation of the rotating clutch with slip a short distance against each other until the ribs facing the slots and positively engage in the respective slot.
- the height of the ribs must be kept as low as possible for reasons of space engineering.
- An embodiment of the invention provides that the optimum height of the rib at least at the portion of the rib, which dips into the slot form-fitting, is 0.2 times as high as the rectified with the possible height smallest possible dimension of the spring tongues, at least on the contact , This point is usually the sheet thickness of the spring tongues on the contact.
- the materials of the thrust washer are preferably plastics, such as plastics, which, even at operating temperatures of up to 160 ° C., surround the environment of the coupling. Lungsaus Weglagers can be used. These are, for example, polytetrafluoroethylene (PTFE) and polyaryl ether ketones (PAEK). Also used are polyamides such as PA46 CF30, partially aromatic polyamides such as polyphthalamide (PPA), polyhexamethylene-terephthalamide (PA6T), polyhexamethylene isophthalamide (PA6T / 6I), polyhexamethylene adipamide (PA6T / 66, PA6T / 6I / 66), poly-methylpentamethylene terephthalamide
- Aggregates are, for example, carbon fibers or aramid fibers, which are added, for example, with a weight fraction of 20% to 30% or 1% to 15% of the material.
- Other additives are solid lubricants such as molybdenum disulfide together or as an alternative to graphite or together or as an alternative to PTFE or polyphenylene sulfone (PPSo2, Ceramer), for example, depending on the aggregate in proportions by weight of 1% to 5%, or to 15% or to 30% be mixed.
- Figure 1 is a plate spring of an otherwise not shown
- FIG. 2 shows an embodiment of a self-centering clutch release bearing for contact with a plate spring according to FIG. 1, in a main view onto the thrust washer of the clutch release bearing, FIG.
- Figure 3 shows the clutch release bearing of Figure 2 in a partial section along the line III - III
- Figure 4 shows another embodiment of a self-centering
- FIG. 6 shows a representation of possible dimensional and position deviations on a model of an engagement of ribs in slots of a plate spring (not shown),
- Figure 1 shows a plate spring 1 with spring tongues 2, 3 and 4.
- the spring tongues 2, 3 and 4 are peripherally adjacent to each other.
- two of the mutually adjacent spring tongues 2, 3 or 4 are peripherally separated by a slot 5, 6 or 7 from each other.
- the slots 7 are wider with the tangentially oriented maximum width bi min than the slots 5 or 6 of the width b2min-
- each of the slots 7, a respective rib 8 is dipped in a form-fitting manner.
- Each individual rib 8, when in contact with the rib 8, has the maximum width a max tangentially and is wider than the maximum width b 2 min of the slot 5 and also of the slot 6, so that the ribs 8 are dipped into the slots 5 or 5. 6 is not possible.
- the slots 7 at the narrowest point of the slot 7 where the contact with the plate spring 1 is, that is, where the ribs 8 engage, with the minimum width bimin but wider than the ribs 8 by the width a max can be maximally wide, so that the ribs 8 engage in the slot 7.
- the ribs 8 engage in the slot 7 with the movement play S, which is the sum of the distances Si and S 2 .
- the minimum width bi m m is therefore at least the sum of a max plus the required motion play S m i n .
- the three pieces of the ribs 8 protrude from the surface of the groove bottom 9a of the circumferential groove 9 in a peripheral groove 9 and axially out of the thrust washer 10 beyond the circumferential groove 9.
- the circumferential groove 9 is formed on the end face of the thrust washer 10.
- bent ends 33 of the spring tongues 2, 3 or 4, of which only one can be seen in FIG. 3, lie in the circumferential direction on both sides of the ribs 8 on the groove base 9a, which is adapted to the shape of the bent ends.
- the thrust washer 10 is attached to the front side of an inner ring 13 and has for this purpose an edge 14, which comprises the front-side flange 13a of the inner ring 13 on the outside.
- the thrust washer 10 for example, pressed onto the inner ring 13, snapped with this or snapped or other suitably connected form-fitting or positive-locking or glued to this, welded or otherwise materially connected.
- the balls 16 are arranged between the inner ring 13 and an outer ring 15 balls 16 are arranged.
- the balls 16 are guided in a cage 17.
- the outer ring 15 is biased by a spring 18 elastically against an axial flange 19 a of a sliding sleeve 19.
- the sliding sleeve 19 has fastening elements 19b for fastening an actuating element, not shown, by means of which axial forces on the Sliding sleeve 19 are applied, so that the sliding sleeve 19 and thus the clutch release bearing 12 is moved over the outer ring 15 against the spring tongues 2, 3 and 4 and the spring tongues 2, 3 and 4 thereby spring.
- Radial displacement x between the axis of rotation 11 of the clutch release bearing 12 and the rotational axis 20 of the clutch, not shown to each other is centered upon rotation of the inner ring 13 with radial movements of the outer ring 15 axially by the offset x on Axialflansch 19a ( Figure 3) to the rotation axis 11 and Rotary axis 20 are concentric with each other. Therefore, the distance H between the inner diameter of the outer ring 15 and the sliding sleeve 19 is greater than x.
- the center of the axial disc 10 lies on the axis of rotation 11, so that the offset x max (see FIG. 6) can possibly lead to a radial displacement of the position of one of the ribs 8 by a maximum of the offset x max in the slot 7, at other ribs 8 to partial radial displacements x r in the slot 7 and leads to tangential displacements x t .
- the tangential displacements x t are to be considered in the movement play S m i n .
- the radial displacements x r are compensated by longitudinal movements in the slot 7. In the movement game, further consideration must be given (FIG. 6):
- the maximum permissible deviation of the position of the rib 8 such as the deviation ⁇ A from the nominal dimension of the perpendicular distance A to the axis of rotation 11,
- the vectors of the deviations from the nominal dimensions of the position of the ribs 8 on the thrust washer relative to each other such as the permissible deviation t from the pitch T (pitch error t) or the deviations ⁇ R from the nominal angle ⁇ R with which the longitudinal axes 8a are inclined to the vertical,
- FIGS 4 and 5 show another embodiment of a self-centering clutch release bearing 21 which is in contact with spring tongues 22.
- Three of the circumferentially mutually adjacent spring tongues 22 are indicated by a broken line.
- Slots 23 are formed between two mutually directly arranged spring tongues 22.
- the slots 23 are identical to each other in the embodiment, so that they all have the same tangentially directed width b min .
- the clutch release bearing 21 has a stop washer 24. From the front side flat flat thrust washer are axially ribs 25 out, which engage positively in the slots 23.
- the thrust washer 24 made of plastic, which may also be provided with an insert made of sheet metal as reinforcement, is fixed to the front side of an inner ring 26.
- the thrust washer 24 on the inside snap elements 27, with the inner ring 26 engage behind axially.
- balls 29 are arranged between the inner ring 26 and an outer ring 28 balls 29 are arranged.
- the balls 29 are guided in a cage 30.
- the outer ring 28 is biased by a spring 31 elastically against an axial flange 32a of a sliding sleeve 32. LIST OF REFERENCE NUMBERS Disc spring 24 thrust washer
- Rib 31 spring a longitudinal axis 32 sliding sleeve
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006024084A DE102006024084A1 (de) | 2006-05-23 | 2006-05-23 | Kupplungsausrücklager |
PCT/EP2007/054681 WO2007135020A1 (de) | 2006-05-23 | 2007-05-15 | Kupplungsausrücklager |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2027394A1 true EP2027394A1 (de) | 2009-02-25 |
Family
ID=38268925
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07729133A Withdrawn EP2027394A1 (de) | 2006-05-23 | 2007-05-15 | Kupplungsausrücklager |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2027394A1 (de) |
CN (1) | CN101449076B (de) |
BR (1) | BRPI0712256B1 (de) |
DE (1) | DE102006024084A1 (de) |
WO (1) | WO2007135020A1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2961281B1 (fr) * | 2010-06-09 | 2013-02-22 | Skf Ab | Dispositif de butee de debrayage comprenant une bague d'usure. |
DE112011105225T5 (de) * | 2011-05-11 | 2014-02-27 | Aktiebolaget Skf | Kupplungsausrücklagervorrichtung |
DE102012204590A1 (de) * | 2012-03-22 | 2013-09-26 | Schaeffler Technologies AG & Co. KG | Kupplungs-Ausrücklager |
WO2014206410A1 (de) * | 2013-06-28 | 2014-12-31 | Schaeffler Technologies Gmbh & Co. Kg | Ausrücksystem zur betätigung einer kupplung |
FR3031553B1 (fr) * | 2015-01-13 | 2017-08-18 | Skf Ab | Palier a roulement pour dispositif de butee de debrayage comprenant un revetement antifriction |
FR3033853B1 (fr) * | 2015-03-16 | 2017-03-10 | Skf Ab | Palier comprenant une bague d'usure |
DE102016210353A1 (de) | 2016-06-10 | 2017-12-14 | Schaeffler Technologies AG & Co. KG | Ausrücklager einer Reibungskupplung |
DE102017104201A1 (de) * | 2017-03-01 | 2018-09-06 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Kupplungslagerung mit Ausrichtungselement für Kupplungsfeder |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1680631A1 (de) * | 1965-06-26 | 1970-01-29 | Ford Werke Ag | Tellerfederkupplung,insbesondere fuer Kraftfahrzeuge |
GB1508987A (en) * | 1974-06-07 | 1978-04-26 | Ransome Hoffmann Pollard | Thrust bearing for a clutch release mechanism |
DE3743853A1 (de) * | 1987-12-23 | 1989-07-06 | Schaeffler Waelzlager Kg | Innenlaufring eines kupplungsausruecklagers |
GB2312722B (en) * | 1996-05-02 | 2000-02-09 | Automotive Prod Co Ltd | Diaphragm spring assembly |
FR2756602B1 (fr) * | 1996-11-29 | 1999-01-15 | Skf France | Dispositif debrayeur |
-
2006
- 2006-05-23 DE DE102006024084A patent/DE102006024084A1/de not_active Ceased
-
2007
- 2007-05-15 WO PCT/EP2007/054681 patent/WO2007135020A1/de active Application Filing
- 2007-05-15 CN CN2007800187251A patent/CN101449076B/zh not_active Expired - Fee Related
- 2007-05-15 EP EP07729133A patent/EP2027394A1/de not_active Withdrawn
- 2007-05-15 BR BRPI0712256A patent/BRPI0712256B1/pt not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO2007135020A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN101449076A (zh) | 2009-06-03 |
WO2007135020A1 (de) | 2007-11-29 |
BRPI0712256A8 (pt) | 2016-05-31 |
CN101449076B (zh) | 2011-04-20 |
BRPI0712256A2 (pt) | 2012-01-17 |
BRPI0712256B1 (pt) | 2020-04-22 |
DE102006024084A1 (de) | 2007-11-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2027394A1 (de) | Kupplungsausrücklager | |
DE19912431B4 (de) | Ausrückvorrichtung | |
EP2059690B1 (de) | Kupplungsausrücklager mit anlaufscheibe | |
EP2585737B1 (de) | Zahnradanordung | |
DE19730749C2 (de) | Vorrichtung zum Verhindern des Wanderns eines Wälzlagers | |
EP1238204A1 (de) | Bremsscheiben-/nabenverbindung für fahrzeugscheibenbremsen | |
WO2017041802A1 (de) | Getriebe mit elastischem zahnrad | |
WO2012069408A1 (de) | Konzept zur zentrierung eines lagerrings in einem halteelement | |
EP3183465B1 (de) | Nachstelleinrichtung für eine scheibenbremse und scheibenbremse mit einer solchen nachstelleinrichtung | |
EP2203654A1 (de) | Wälzlager mit einem geteilten lagerring | |
EP1482213A1 (de) | Betätigungseinrichtung für ein Schaltgetriebe | |
EP2773882A1 (de) | Nachstellvorrichtung für eine scheibenbremse | |
DE202006021098U1 (de) | Kupplungsausrücklager | |
DE102004060172B4 (de) | Kraftübertragungsvorrichtung | |
EP1888931A2 (de) | Ausrücklager einer schalttrennkupplung | |
EP1891347B1 (de) | Ausrücklager einer schalttrennkupplung | |
WO2010130598A1 (de) | Betätigungssystem für eine kupplung | |
EP1431629B1 (de) | Stellvorrichtung zum Betätigen einer Schaltschiene | |
EP1654472A1 (de) | Rastelement | |
WO2020103967A1 (de) | Synchronisierung und arretierelement für eine synchronisierung | |
WO2018095479A1 (de) | Sperrklinke mit einem klinkenkörper für eine parksperre | |
EP1801440B1 (de) | Nicht schaltbare, formschlüssig nachgiebige Kupplung | |
WO2011042098A1 (de) | Verstellbare axialkolbenmaschine mit einer lagerschale für die schwenkwiege | |
EP3812604B1 (de) | Formschlüssige verbindung zweier komponenten, insbesondere welle-nabe verbindung | |
WO2017157367A1 (de) | Ausrücklager |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20081223 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA HR MK RS |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: DITTMER, STEFFEN Inventor name: LIEBSCHNER, STEFFEN Inventor name: WINKELMANN, LUDWIG |
|
17Q | First examination report despatched |
Effective date: 20090428 |
|
DAX | Request for extension of the european patent (deleted) | ||
RBV | Designated contracting states (corrected) |
Designated state(s): DE FR GB IT |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SCHAEFFLER TECHNOLOGIES AG & CO. KG |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
18W | Application withdrawn |
Effective date: 20120503 |
|
P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230523 |