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WO1986001863A1 - Bague recouverte d'une couche de materiau de friction sur sa partie conique - Google Patents

Bague recouverte d'une couche de materiau de friction sur sa partie conique Download PDF

Info

Publication number
WO1986001863A1
WO1986001863A1 PCT/EP1985/000466 EP8500466W WO8601863A1 WO 1986001863 A1 WO1986001863 A1 WO 1986001863A1 EP 8500466 W EP8500466 W EP 8500466W WO 8601863 A1 WO8601863 A1 WO 8601863A1
Authority
WO
WIPO (PCT)
Prior art keywords
ring
layer
ring according
friction
friction surface
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/EP1985/000466
Other languages
German (de)
English (en)
Inventor
Roland SCHRÖPER
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.)
ZF Friedrichshafen AG
Original Assignee
ZF 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 ZF Friedrichshafen AG filed Critical ZF Friedrichshafen AG
Publication of WO1986001863A1 publication Critical patent/WO1986001863A1/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
    • F16D23/02—Arrangements for synchronisation, also for power-operated clutches
    • F16D23/025—Synchro rings

Definitions

  • the invention relates to a ring according to the preamble of the main claim.
  • a ring of this type is known (DE-OS 20 55 345).
  • a ring according to DE-OS 20 55 345 is indeed highly resilient and very wear-resistant, but also very expensive: the expensive friction material has to be applied as a thick layer with machining allowance. With great wear on the special tool required for machining this friction material, the tapered friction surface has to be ground, but also grooves, usually spiral grooves, must also be ground. In order to keep the wear of the tool within tolerable limits and / or not to endanger the durability of the friction material layer, the groove depth must not exceed the layer thickness.
  • the groove depth must also not be too small if the grooves are to fulfill their task of draining the oil quickly enough as drainage channels, which oil must first be displaced from the friction gap at the start of the engagement or, in particular, of the synchronization process, so that the friction surface can reach the counter friction surface.
  • the object of the invention is to provide a ring according to the preamble of the main claim, which achieves a similar performance and service life as a ring according to DE-OS 20 55 345 with less consumption of friction material and with less manufacturing effort. This object is achieved with a ring with the characterizing features of the main claim.
  • the features of the subclaims provide further advantages through a higher coefficient of friction and / or a faster increase in coefficient of friction and / or lower material and / or manufacturing costs and / or longer service life. Tests have shown that a ring according to the invention is even superior to a known ring according to DE-OS 20 55 345 in certain applications and achieves an even longer service life.
  • a ring 1 has an inner tapered friction surface 2.
  • Axial grooves 3 with a groove width N, a groove depth T, groove flanks 4 and a groove base 7 divide the friction surface 2 into individual friction surfaces 5 in the form of webs 5 with a web width S.
  • Groove width N and web ⁇ width S are measured along an average circumference U of the friction surface 2.
  • a molybdenum layer 6 covers both the web 5 and the groove flanks 4 and the groove base 7.
  • the molybdenum layer 6 has a thickness H of 0.06 to 0.10 mm.
  • the ratio of groove width N to web width S is 0.5 to 3.0.
  • the ratio of groove depth T to web width S is 0.2 to 1.5.
  • the ratio of web width S to circumference U is at most 0.01.
  • the groove width N is at least 0.8 mm.
  • the web width S is 0.5 to 3.0 mm.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Operated Clutches (AREA)
  • Braking Arrangements (AREA)
  • Structure Of Transmissions (AREA)

Abstract

Une bague (1) recouverte d'une couche (6) de matériau de friction sur une surface conique (2) ayant des rainures (3) et des dentures (5) axiales. Le rapport largeur de rainure (N)/largeur de denture (5) est de 0,5 à 3,0. Le rapport profondeur de rainure (T)/profondeur de denture est de 0,2 à 1,5. Le rapport maximum largeur de denture (S)/périphérie (U) de surface de frottement (2) est 0,01. La largeur de rainure (N) est d'au moins 0,8 mm. La largeur de denture (S) est de 0,5 à 3,0 mm. L'épaisseur (H) d'une couche (6) de molybdène est entre 0,06 et 0,10 mm. L'épaisseur (H) d'une couche (6) de nickel est de 0,02 à 0,03 mm.
PCT/EP1985/000466 1984-09-20 1985-09-13 Bague recouverte d'une couche de materiau de friction sur sa partie conique Ceased WO1986001863A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LUPCT/EP84/00291 1984-09-20
EP8400291 1984-09-20

Publications (1)

Publication Number Publication Date
WO1986001863A1 true WO1986001863A1 (fr) 1986-03-27

Family

ID=8164972

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1985/000466 Ceased WO1986001863A1 (fr) 1984-09-20 1985-09-13 Bague recouverte d'une couche de materiau de friction sur sa partie conique

Country Status (3)

Country Link
JP (1) JPS62500395A (fr)
DE (1) DE3532672A1 (fr)
WO (1) WO1986001863A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987006314A1 (fr) * 1986-04-16 1987-10-22 Zahnradfabrik Friedrichshafen Ag Bague de synchronisation
FR2780120B1 (fr) * 1998-06-19 2000-09-08 Sintertech Bague de synchronisation frittee
DE10230189B4 (de) * 2002-07-05 2014-10-09 Schaeffler Technologies Gmbh & Co. Kg Schaltkupplung in einem Schaltgetriebe
DE10239093B4 (de) * 2002-08-26 2005-11-03 Diehl Metall Stiftung & Co.Kg In einem Medium laufende Reibschicht
CN102252041A (zh) * 2011-07-14 2011-11-23 万沛 一种双锥同步器的中间环
CN104632924A (zh) * 2014-12-31 2015-05-20 泸州长江机械有限公司 一种汽车变速箱同步器的同步环
DE102015100869B4 (de) * 2015-01-21 2016-10-13 Hoerbiger Antriebstechnik Holding Gmbh Verfahren zur Herstellung eines Synchronrings sowie Synchronring für synchronisierte Schaltgetriebe
US10948027B2 (en) * 2019-03-08 2021-03-16 Schaeffler Technologies AG & Co. KG Wet clutch friction plate

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB945445A (en) * 1961-11-29 1964-01-02 Austin Motor Co Ltd Improvements relating to synchromesh gears
DE1815372A1 (de) * 1968-12-18 1970-07-02 Daimler Benz Ag Sperrsynchronisierte Schaltkupplung fuer Zahnrad-Wechselgetriebe,insbesondere von Kraftfahrzeugen
DE2055345A1 (de) * 1970-11-11 1972-05-18 Zahnradfabrik Friedrichshafen Synchronisierring in Schaltgetrieben
DE2810945B1 (de) * 1978-03-14 1979-05-10 Diehl Gmbh & Co Synchronisierring
EP0070952A1 (fr) * 1981-07-30 1983-02-09 Battelle Development Corporation Anneau de synchronisation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB945445A (en) * 1961-11-29 1964-01-02 Austin Motor Co Ltd Improvements relating to synchromesh gears
DE1815372A1 (de) * 1968-12-18 1970-07-02 Daimler Benz Ag Sperrsynchronisierte Schaltkupplung fuer Zahnrad-Wechselgetriebe,insbesondere von Kraftfahrzeugen
DE2055345A1 (de) * 1970-11-11 1972-05-18 Zahnradfabrik Friedrichshafen Synchronisierring in Schaltgetrieben
DE2810945B1 (de) * 1978-03-14 1979-05-10 Diehl Gmbh & Co Synchronisierring
EP0070952A1 (fr) * 1981-07-30 1983-02-09 Battelle Development Corporation Anneau de synchronisation

Also Published As

Publication number Publication date
DE3532672A1 (de) 1986-03-27
JPS62500395A (ja) 1987-02-19

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