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WO2007137939A1 - Butée de débrayage comprenant une bague de réglage - Google Patents

Butée de débrayage comprenant une bague de réglage Download PDF

Info

Publication number
WO2007137939A1
WO2007137939A1 PCT/EP2007/054688 EP2007054688W WO2007137939A1 WO 2007137939 A1 WO2007137939 A1 WO 2007137939A1 EP 2007054688 W EP2007054688 W EP 2007054688W WO 2007137939 A1 WO2007137939 A1 WO 2007137939A1
Authority
WO
WIPO (PCT)
Prior art keywords
clutch release
ring
release bearing
bearing ring
contact
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.)
Ceased
Application number
PCT/EP2007/054688
Other languages
German (de)
English (en)
Inventor
Ludwig Winkelmann
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.)
IHO Holding GmbH and Co KG
Original Assignee
Schaeffler 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 KG filed Critical Schaeffler KG
Priority to BRPI0711746A priority Critical patent/BRPI0711746A8/pt
Publication of WO2007137939A1 publication Critical patent/WO2007137939A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • 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
    • F16D23/144—With a disengaging thrust-ring distinct from the release bearing, and secured to the diaphragm
    • F16D23/146—Arrangements for the connection between the thrust-ring and the release 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
    • F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
    • F16C23/06—Ball or roller bearings
    • F16C23/08—Ball or roller bearings self-adjusting
    • F16C23/082—Ball or roller bearings self-adjusting by means of at least one substantially spherical surface
    • F16C23/084—Ball or roller bearings self-adjusting by means of at least one substantially spherical surface sliding on a complementary spherical surface
    • 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 clutch release bearing with an adjusting ring, with a non-rotating bearing ring, with a rotating bearing ring and with rolling elements between the bearing rings, wherein
  • the rotating bearing ring rotates relative to the non-rotating bearing ring about an imaginary rotational axis of the clutch release bearing
  • the adjustment ring is assigned a first dome section
  • the rotating bearing ring is assigned a second calotte section
  • the dome sections in contact correspond geometrically with each other
  • the rotating bearing ring is pivotally supported on the first calotte section on the contact, the rotating bearing ring and the adjusting ring rotate together about the axis of rotation and the contact has a sliding layer between the Kalottenaboughen.
  • the adjusting ring has on the surface of an outwardly curved Kugelkalottenabitess on a sliding coating made of plastic.
  • the dome portion on the adjusting ring engages in an inwardly curved dome portion on the inner ring.
  • the inner shape of the concave Kalottenabitess on the inner ring corresponds to the convex outer shape of the Kalottenabitess on the adjustment, so that the inner ring to the outer ring is pivotally articulated.
  • a sliding coating between the Kalottenabitesen reduces the friction during normal operation significantly, but is for continuous operation, especially in transmissions with dual clutch at operating temperatures above 180 0 C and short-term temperature intervals up to 220 0 C prone or not suitable.
  • a designed on the life of the clutch layer of plastic must be relatively thick walls due to the low wear resistance and the lubricating properties and the resulting erosion, especially when the articulated compound runs almost or completely unlubricated dry. Thick-walled plastic layers, however, adversely affect the stiffness of the axially loaded with release forces Kupplungsaus Weglagers and require relatively much axial space.
  • the object of the invention is therefore to provide a self-adjusting clutch release bearing, which meets the requirements of low axial space, high axial load, dry running and the requirements for operation at high operating temperatures.
  • This object is achieved according to the characterizing part of claim 1, characterized in that the sliding layer is formed on a sintered material.
  • the starting materials of the sintered component or the sintered layer are metal powders or non-metallic starting materials such as ceramics.
  • the materials are sometimes very hard mixtures of metals and oxides, carbides or borides.
  • Sinteraluminum for example, contains finely divided oxide and is used because of its higher heat resistance for thermally stressed parts.
  • pores are small open to the surface chambers or cavities in the material, which are networked together depending on the design of the material.
  • the associated material property is the porosity, the ratio of the volume of all cavities .DELTA.V of a porous solid to its outer volume V. It is therefore a measure of how much space fills the actual solid due to its grain size or solid structure within a certain volume or which cavities it has in this.
  • the pores are usually filled with air or, as provided by one embodiment of the invention, at least partially or completely filled with lubricants and / or lubricants, at least in the surface layer.
  • the pore volume represents, in addition to the degree of crosslinking of the pores, the most important factor of the permeability (permeability) or partial permeability.
  • a contact is the area, the area, are the surface portions and in the worst case, the line sections are to be understood, at which the two Kalottenabitese abut each other, slide against each other or act in any other way.
  • An example of a sinterable material which can be used for the invention is a material of the designation "Sint - C10" made of steel with a mass fraction of approximately 1.5% copper and with a porosity of 15 +/- 2.5%, which has a density of about 6.4 to 6, 8 g / cm 3 .
  • the clutch release bearing according to the invention can form a layer on either the inwardly curved and / or, as one embodiment of the invention, at the edge of the outwardly curved first dome portion at least in the region in contact with the dome portion inwardly curved made of sintered material.
  • one or both are dome sections or quite partially made of sintered material.
  • a one-piece made of sintered material adjustment ring is provided. Sintered parts can be produced very accurately, so that in the last-mentioned case, machining of a setting ring produced by sintering can be dispensed with.
  • Embodiments of the invention provide that at least the porous and at least partially permeable surface of the sintered material is impregnated, filled or impregnated at the contact with lubricants.
  • the lubricants are liquid or solid.
  • Lubricants are, for example, synthetic oils with working ranges at operating temperatures up to 250 ° or graphite, lubricants with emergency running properties such as copper, brass or bronze. It is also conceivable that the sintered material itself contains these solid lubricants such as graphite.
  • the oils are stored in the pores of the material and are discharged into the contact during operation by leakage or by elastic deformations by pressure from actuating forces to the surface.
  • a further embodiment of the invention provides that a sliding material is integrated into the pores of the edge layer of at least one, in particular of the dome section on the adjusting ring.
  • This sliding material is preferably a plastic with sliding properties, such as polytetrafluoroethylene (PTFE).
  • PTFE polytetrafluoroethylene
  • the advantage of the invention lies in the fact that the friction-reducing de or sliding-promoting arrangement hardly takes up axial space, since the lubricants or lubricants are stored for the most part in the pores of one of the Kalottenabitese and not applied as a layer on the surface.
  • the stiffness of the clutch release bearing at high loads is not affected by this arrangement.
  • the friction-reducing measures are very resistant to high temperatures, since lubricating and / or sliding materials can be selected due to the thin sliding film in frictional contact for the temperature resistance and not for mechanical strength properties.
  • Conceivable is the use of sintered bronzes or graphite-containing sintered bronzes with densities of 6.0 to 7.7 g / cm 3 and with porosities of 15 to 25 +/- 2.5%, for example, the material designation A50 (A51), B50 (B51) or C50 (C51).
  • the substrate is either steel or another sintered material.
  • the sintered layer is pressed on, rolled, rolled or applied in a materially cohesive manner.
  • the two-component sintered material is preferably produced by sintering.
  • Polytetrafluoroethylene (PTFE) is preferably integrated in the pores of the sintered bronze.
  • the layer thicknesses of the sintered bronze layer according to the invention are about 0.2 to 0.35, preferably 0.3 mm thick, therefore require little axial space, thus have little effect on the axial stiffness of the clutch release bearing and are temperature resistant.
  • Figure 2 is a greatly enlarged partial view of the adjustment of the
  • FIG. 3 is a simplified representation of the structure of a sliding layer on the edge of the sliding layer of the adjusting ring of FIG. 2, in which the longitudinal section is greatly enlarged and not to scale.
  • Figure 4 shows the simplified representation of the structure of an alternative to Figure 3 edge layer of an adjustment ring of Figure 2, in the longitudinal section greatly enlarged and not to scale and
  • Figure 5 shows a further clutch release bearing in a longitudinal section along the axis of rotation of the clutch release bearing.
  • the rotating bearing ring 3 is an inner bearing ring 21 which acts via the adjusting ring on a clutch spring, not shown, and this together with the adjustment ring 2 is rotated about the axis of rotation 7.
  • the non-rotating bearing ring 4 is an outer bearing ring 22, acting on the release elements not shown axially.
  • the axis of rotation 7 of the clutch release bearing 1 and the center axis 19 of the adjusting ring 2 or the axis of rotation 7 of the bearing are concentric with one another.
  • these can be inclined to each other by angle ⁇ .
  • This inclination is compensated by means of the articulated interaction of the rotating bearing ring 3 with the adjusting ring 2.
  • the adjusting ring 2 a Kalottenabites 8, which is in one piece - in this case - formed einmaterialig with the Einstellring 2.
  • the concave calotte section 10 is formed in one piece with the rotating bearing ring 3 and can also be formed separately from it on a support ring of the rotating bearing ring 3.
  • FIG. 2 shows a detail of the item adjusting ring 2, whose main body 11 is made of either steel or alternatively a sintered material, e.g. made of sintered steel.
  • the edge layer 12 of the adjusting ring 2 which is curved on the outside in the manner of a spherical segment with the dome section 8, is made of a sintered material at least in the contact zone with the dome section 10.
  • the pores 13 and 15 of the sintered materials 16 and 18 are, as shown with the embodiments of Figures 3 and 4, partially formed directly on the surface 14 of the Kalottenabites 8 and opened to the outside or are cavities 20 under the surface 14th
  • the pores 13 in the sintered material 16 according to FIG. 3 are partially crosslinked with one another and filled with plastic, for example with PTFE.
  • the sintered material 16 is in this case, for example, sintered bronze on the carrier material / the base body 17 made of sintered steel or steel.
  • pores 15 of the embodiment of Figure 4 are in the edge layer of the adjusting ring 2 of the sintered material 18 made of steel, for example with a synthetic oil or oil filled with fluoride additives.
  • Figure 5 shows another embodiment of a clutch release bearing 25 with an adjustment ring 26, a rotating bearing ring 3 and a non-rotating bearing ring 4.
  • the rotating bearing ring 3 is an outer bearing ring 23 which acts via the adjusting ring 26 on a clutch spring, not shown, and in common with this rotated with the adjusting ring 26 about the rotation axis 27.
  • the non-rotating bearing ring 4 is an inner bearing ring 24, acting on the not further shown release elements, such as a piston of a hydraulic release device axially.
  • rolling elements 5 are arranged between the trained as Schrägschulterringen bearing rings 3 and 4 rolling elements 5 are arranged. The rolling elements 5 are held in a cage 6.
  • the axis of rotation 27 of the clutch release bearing 25 and the center axis 28 of the adjusting ring 26 or the axis of rotation 27 are concentric with each other.
  • they can be inclined to each other by angle ⁇ . This inclination is compensated for by means of the articulated interaction of the rotating bearing ring 3 with the adjusting ring 26.
  • the adjusting ring 26 has a calotte 29, which is applied in this case as a layer 30 on the adjusting ring 26.
  • the layer 30 is very thin in the original and not drawn to scale in FIG.
  • the surface of the Kalottenabites 29 is concave.
  • the convex dome portion 31 is integrally formed with the rotating bearing ring 3 and can also be formed separately from this on a support ring of the rotating bearing ring 3.
  • the main body 32 of the adjusting ring 26 is made of steel.
  • the sliding layer 30 on the adjusting ring 26 is curved with the Kalottenabrough 29 spherical segment-shaped and at least in the contact zone 33 to the Kalottenabrough 31 of a sintered material 16.
  • the pores of the sintered material, as in the Representation of Figure 3, for example, filled with PTFE and the sintered material 16 is for example made of sintered bronze or, as in the example of Figure 4, filled with a synthetic oil or with fluoride additives.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Operated Clutches (AREA)
  • Sliding-Contact Bearings (AREA)

Abstract

L'invention concerne une butée de débrayage (1, 25) comprenant une bague de réglage (2, 26), une bague de palier non rotative (4), une bague de palier rotative (3) et des corps roulants (5) placés entre ces bagues de palier (3, 4). Selon l'invention, la bague de palier rotative (3) peut tourner par rapport à la bague de palier non rotative (4) autour d'un axe de rotation imaginaire (7, 27) de la butée de débrayage (1, 25), une première section concave (8, 29) est associée à la bague de réglage (2, 26), une seconde section concave (10, 31) est associée à la bague de palier rotative (3), la seconde section concave (10, 31) est en contact (9, 33) avec la première section concave (8, 29), les sections concaves (8, 10) présentent dans la région de contact (9, 33) des formes géométriques correspondantes, la bague de palier rotative (3) est appuyée de façon pivotante sur la première section concave (8, 29) sur la région de contact (9, 33), la bague de palier rotative (3) et la bague de réglage (2, 26) tournent ensemble autour de l'axe de rotation (7, 27) et la région de contact (9) présente une couche de glissement entre les sections concaves (8, 10).
PCT/EP2007/054688 2006-05-26 2007-05-15 Butée de débrayage comprenant une bague de réglage Ceased WO2007137939A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BRPI0711746A BRPI0711746A8 (pt) 2006-05-26 2007-05-15 Mancal de desengate de embreagem com um anel de ajuste

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006024486.9 2006-05-26
DE102006024486A DE102006024486A1 (de) 2006-05-26 2006-05-26 Kupplungsausrücklager mit einem Einstellring

Publications (1)

Publication Number Publication Date
WO2007137939A1 true WO2007137939A1 (fr) 2007-12-06

Family

ID=38420557

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/054688 Ceased WO2007137939A1 (fr) 2006-05-26 2007-05-15 Butée de débrayage comprenant une bague de réglage

Country Status (3)

Country Link
BR (1) BRPI0711746A8 (fr)
DE (1) DE102006024486A1 (fr)
WO (1) WO2007137939A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2936033A1 (fr) * 2008-09-16 2010-03-19 Skf Ab Roulement a billes, son utilisation et vehicule automobile equipe d'un tel roulement.
US10830277B2 (en) * 2017-07-22 2020-11-10 Texspin Bearings Limited Self-aligning clutch release bearing

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007053180A1 (de) * 2007-11-08 2009-05-14 Schaeffler Kg Selbstjustierende Kupplungsausrücklagereinrichtung und Verfahren zur Herstellung derselben

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB705005A (en) * 1952-02-08 1954-03-03 Sintered Products Ltd Method of bonding of polytetrafluorethylene to metal
GB885322A (en) * 1957-01-31 1961-12-28 Federal Mogul Bower Bearings A process of fabricating transpiration cooled turbine blades and the blades producedthereby
US3390927A (en) * 1965-10-23 1968-07-02 Federal Mogul Corp Clutch release bearing
GB1184415A (en) * 1968-01-18 1970-03-18 Automotive Prod Co Ltd Improvements in and relating to Disc-type Assemblies for Friction Clutches
GB1368245A (en) * 1971-11-24 1974-09-25 Automotive Prod Co Ltd Friction clutches
WO1998051419A1 (fr) * 1997-05-13 1998-11-19 Richard Edmund Toth Poudres dures a revetement resistant et articles frittes produits a partir de ces poudres
EP1243804A1 (fr) * 2001-03-24 2002-09-25 INA- Schaeffler KG Butée d'embrayage autoréglable
EP1647731A2 (fr) * 2004-10-18 2006-04-19 Schaeffler KG Mécanisme de butée d'embrayage de séparation de véhicule automobile

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55137726U (fr) * 1979-03-24 1980-10-01
JP2596615Y2 (ja) * 1991-09-13 1999-06-21 株式会社ユニシアジェックス クラッチのレリーズ装置

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB705005A (en) * 1952-02-08 1954-03-03 Sintered Products Ltd Method of bonding of polytetrafluorethylene to metal
GB885322A (en) * 1957-01-31 1961-12-28 Federal Mogul Bower Bearings A process of fabricating transpiration cooled turbine blades and the blades producedthereby
US3390927A (en) * 1965-10-23 1968-07-02 Federal Mogul Corp Clutch release bearing
GB1184415A (en) * 1968-01-18 1970-03-18 Automotive Prod Co Ltd Improvements in and relating to Disc-type Assemblies for Friction Clutches
GB1368245A (en) * 1971-11-24 1974-09-25 Automotive Prod Co Ltd Friction clutches
WO1998051419A1 (fr) * 1997-05-13 1998-11-19 Richard Edmund Toth Poudres dures a revetement resistant et articles frittes produits a partir de ces poudres
EP1243804A1 (fr) * 2001-03-24 2002-09-25 INA- Schaeffler KG Butée d'embrayage autoréglable
EP1647731A2 (fr) * 2004-10-18 2006-04-19 Schaeffler KG Mécanisme de butée d'embrayage de séparation de véhicule automobile
US20060081439A1 (en) * 2004-10-18 2006-04-20 Ina Schaeffler Kg Clutch operator for a disconnectable clutch in motor vehicles

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2936033A1 (fr) * 2008-09-16 2010-03-19 Skf Ab Roulement a billes, son utilisation et vehicule automobile equipe d'un tel roulement.
WO2010031756A1 (fr) * 2008-09-16 2010-03-25 Aktiebolaget Skf Roulement à billes, son utilisation et véhicule à moteur équipé d'un tel roulement
DE212009000113U1 (de) 2008-09-16 2011-07-29 Aktiebolaget Skf Kugellager, seine Verwendung und ein mit einem derartigen Lager ausgestattetes Kraftfahrzeug
US8485734B2 (en) 2008-09-16 2013-07-16 Aktiebolaget Skf Ball bearing, and a motor vehicle fitted with such a bearing
US10830277B2 (en) * 2017-07-22 2020-11-10 Texspin Bearings Limited Self-aligning clutch release bearing

Also Published As

Publication number Publication date
DE102006024486A1 (de) 2007-11-29
BRPI0711746A2 (pt) 2011-12-06
BRPI0711746A8 (pt) 2016-05-31

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