WO2014161546A1 - Corps de couplage pour un dispositif de synchronisation d'un vehicule automobile - Google Patents

Corps de couplage pour un dispositif de synchronisation d'un vehicule automobile Download PDF

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Publication number
WO2014161546A1
WO2014161546A1 PCT/DE2014/200155 DE2014200155W WO2014161546A1 WO 2014161546 A1 WO2014161546 A1 WO 2014161546A1 DE 2014200155 W DE2014200155 W DE 2014200155W WO 2014161546 A1 WO2014161546 A1 WO 2014161546A1
Authority
WO
WIPO (PCT)
Prior art keywords
segments
sub
coupling body
end portions
axial
Prior art date
Application number
PCT/DE2014/200155
Other languages
German (de)
English (en)
Inventor
Valerie Mandon
Reinhard Ammon
Reiner Martin
Mehmet Oezsoy
Original Assignee
Schaeffler Technologies Gmbh & 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 Gmbh & Co. Kg filed Critical Schaeffler Technologies Gmbh & Co. Kg
Priority to CN201480018511.4A priority Critical patent/CN105102838B/zh
Publication of WO2014161546A1 publication Critical patent/WO2014161546A1/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
    • F16D23/02—Arrangements for synchronisation, also for power-operated clutches
    • F16D23/04—Arrangements for synchronisation, also for power-operated clutches with an additional friction clutch
    • F16D23/06—Arrangements for synchronisation, also for power-operated clutches with an additional friction clutch and a blocking mechanism preventing the engagement of the main clutch prior to synchronisation
    • 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
    • F16D23/04—Arrangements for synchronisation, also for power-operated clutches with an additional friction clutch
    • F16D23/06—Arrangements for synchronisation, also for power-operated clutches with an additional friction clutch and a blocking mechanism preventing the engagement of the main clutch prior to synchronisation
    • F16D2023/0625—Details of members being coupled, e.g. gears

Definitions

  • the invention relates to a coupling body for a synchronization device of a motor vehicle having a substantially annular base body, a coupling toothing formed on the outer circumference of the base body, and a collar circumscribing the inner circumference of the base body and subdivided into subsegments.
  • the invention relates to a method for producing a coupling body for a synchronization device of a motor vehicle. Background of the invention
  • a clutch body is usually found in a synchronization device in the manual transmission of a motor vehicle application, wherein the synchronization device of the alignment of different shaft speeds between a to-switch idler gear and a stuck on a shaft switching element, a so-called synchronizer body, is used.
  • the coupling body is arranged between the idler gear and the synchronizer body and serves to transmit torques from a shift sleeve to the idler gear.
  • synchronizer rings are used in a synchronization device, which is usually designed as a pure ring with friction surfaces on the inner circumferential surface or the outer circumferential surface are.
  • a so-called single cone synchronization at least one synchronous inner ring and a synchronous outer ring are used.
  • multi-cone synchronization also arranged between the synchronous inner ring and a synchronizer outer ring synchronizer intermediate ring is provided, which is formed both on its inner circumferential surface and on its outer circumferential surface with a corresponding friction surface.
  • about the friction surfaces form the synchronizer rings when switching a frictional engagement, each with a friction surface of another synchronizer ring, so that align the speeds of the respective synchronizer rings associated waves.
  • EP 2 100 049 B1 discloses a coupling body of a synchronization device or a method for the production thereof.
  • the coupling body is produced in one piece with an externally toothed coupling section and a friction cone section and essentially by a forming process from a sheet steel.
  • window-shaped recesses are introduced into the clutch disc section in order to provide an opportunity for engagement for holding elements of an adjacent synchronous intermediate ring.
  • the window-shaped recesses can be distributed over the circumference of the coupling body distributed evenly and be executed rectangular, square or round.
  • Object of the invention It is therefore a first object of the invention to provide a coupling body for a synchronization device, which allows secure axial positioning of a synchronizer ring.
  • a second object is to provide a method by which a coupling body is simple and inexpensive to produce.
  • the first object of the invention is achieved by a coupling body for a synchronization device of a motor vehicle, with a substantially annular base body, formed on the outer circumference of the body coupling teeth, as well as with a the inner circumference of the body circumferentially divided into sub-segments waistband.
  • the sub-segments for fixing the axial position of a synchronous intermediate ring of the synchronization device are axially offset at their respective end portions.
  • the invention takes into account that for a synchronization in a motor vehicle, the respective components used must be exactly matched to one another in order to enable a trouble-free switching operation.
  • a multi-cone synchronization particular attention is paid to the positioning of a synchronous intermediate ring with respect to a coupling body.
  • a so-called wear reserve in the form of an air gap must be present between the synchronous intermediate ring and the coupling body, so that no axial contact between the main body of the synchronizer intermediate ring and the main body of the coupling body is established.
  • the invention recognizes that the required axial spacing between a synchronous intermediate ring and a coupling body and can be ensured when the end portions of the sub-segments of the inner circumference of the coupling body circumferential collar are axially offset. Due to the axial offset bearing surfaces are formed, which are axially offset from the sub-segments themselves. The contact surfaces at the respective end sections of the subsegments are displaced by the axial offset in the axial direction in such a way that they serve to abut a synchronizer ring in the circumferential direction while maintaining the necessary wear reserve.
  • the desired spacing of the synchronous intermediate ring from the coupling body can be achieved in particular in multi-cone synchronization devices.
  • a complex post-processing such as, for example, a subsequent machining of the subsegments, can be dispensed with.
  • each sub-segment preferably two contact surfaces for the investment of holding elements, such as driving lugs or Mitauerlappen a synchronizer intermediate ring provided.
  • holding elements which engage in the installed state in the areas between the sub-segments on the inner circumference of the main body of the coupling body, so are applied to the contact surfaces.
  • a rotationally fixed arrangement of a synchronous intermediate ring is ensured on a coupling body during operation of a synchronization device.
  • the coupling body is in the assembled state in particular mosest with the idler gear, an externally toothed gear connected.
  • the coupling body may for example be positively or materially secured, for example by means of welding attached to the idler gear.
  • the coupling teeth, or the switching teeth on the outer circumference of the main body of the coupling body is formed with roof angles, which are directed towards the synchronizer ring in the installed state. The roof angles are used to engage the teeth of a sliding sleeve during the switching process.
  • the axial offset of the end portions of the sub-segments is introduced in each case by forming.
  • the respective sub-segment is plastically deformed under change of shape, whereby both volume, as well as the mass and the cohesion of the material are retained.
  • the enforcement is a massive forming in which changes in shape with great solidification of the material arise, which can withstand high loads. Through the enforcements, the contact surfaces are pushed axially at the end portions of the sub-segments to the correct position.
  • the geometry and the position of the respective contact surfaces may be different, wherein the geometries at the coupling body be suitably coordinated by and on the synchronous intermediate ring.
  • the axial offset at the end sections of the subsegments is preferably formed in each case by an axial step.
  • the end portions of the sub-segments are each angled in the axial direction.
  • the contact surfaces are each provided as oblique enforcements in the end sections of the sub-segments of the federal government. Even with such an embodiment, the desired axial distance between the components in the assembled state is reliably given.
  • the areas between the sub-segments of the collar are formed as window-shaped recesses.
  • the recesses represent the correspondingly required engagement geometry for the engagement of the holding elements or driving lugs of a synchronous intermediate ring for positive locking of the coupling body with the synchronous intermediate ring.
  • the end portions of the sub-segments are each formed in pairs rotationally symmetrical on the inner circumference of the body.
  • these can be interconverted by 120 ° when the coupling body is rotated.
  • the second object of the invention is achieved by a method for producing a coupling body for a synchronization Vor- direction of a motor vehicle, in which a metal sheet is provided, from the sheet metal, a substantially annular base body is made, a coupling toothing is formed on the outer periphery of the body and on the inner periphery of the body, a collar is formed with a number of sub-segments. Finally, the sub-segments for fixing the axial position of a synchronous intermediate ring of the synchronization device are offset axially at their respective end portions by forming.
  • the abutment surfaces required for abutment for a synchronizer intermediate ring are pushed axially to the correct position and thus serve to ensure the desired axial position of a synchronous intermediate ring in the installed state in a synchronization device.
  • a post-processing of the sub-segments can be omitted, which favors a cost-effective production of the coupling body.
  • a sheet is used, from which the base body is punched out.
  • a metal strip which is formed into a ring and finally welded at the ends.
  • the external teeth as well as the circumferentially segmented collar is introduced by forming.
  • the machined in the manufacture of the coupling body end portions of the sub-segments provide contact surfaces for holding elements of Synchron handled- ring available.
  • the axial spacing of the end sections achieves the necessary axial spacing while maintaining the wear reserve between the coupling body and the intermediate synchronizing ring.
  • the respective axial offset is introduced at the end portions of the sub-segments as an enforcement, so that the desired shape changes are implemented while solidifying the end portions of the sub-segments.
  • the end sections of the subsegments are each axially offset in pairs in rotational symmetry on the inner circumference of the main body.
  • an axial step is introduced at the end portions of the sub-segments, which allows a bearing of a holding element of a synchronous intermediate ring under axial spacing of the synchronizer ring from the coupling body. It is also advantageous if the end sections of the subsegments are each angled in the axial direction. Even with such an embodiment, a contact of a holding element of a synchronous intermediate ring is possible, wherein the holding elements of the synchronizer ring are matched accordingly to end portions of the sub-segments of the coupling body.
  • FIG. 1 shows a coupling body for a synchronization device with a formed on the inner circumference of its body segmented collar in a three-dimensional representation
  • Fig. 2 shows a detail of another coupling body for a synchronization device with a on the inner circumference of his Body formed segmented collar in a two-dimensional representation.
  • Fig. 1 shows a coupling body 1 for a synchronization device of a motor vehicle.
  • the coupling body 1 has a substantially annular base body 3, which is produced by punching out of a metal sheet.
  • a coupling toothing 7 is formed whose teeth 9 have roof angles 11.
  • the coupling toothing 7 is integrally formed on the base body 3 and serves in the installed state of the coupling body to engage the toothing of a sliding sleeve during the switching operation.
  • On the inner circumference 13 of the main body 3 is a circumferential, divided into three sub-segments 15 collar 17 is formed.
  • the sub-segments 15 of the collar 17 are spaced from each other by window-shaped recesses 19.
  • In the installed state of the coupling body 1 grip elements such as driving lugs or Mitauerlappen a synchronous intermediate ring in the recesses 19, whereby a rotationally fixed arrangement of a synchronous intermediate ring on the coupling body 1 is ensured.
  • the holding elements of the synchronous intermediate ring come in the installed state on the coupling body 1 to the plant.
  • the end portions 21 of the sub-segments 15 of the base body 3 are axially offset.
  • a contact surface 25 is formed at each end portion 21.
  • the contact surfaces 25 are formed by so-called axial stages in the end portions 21 of the sub-segments 15 in the form of enforcements 27.
  • the contact surfaces 25 serve to secure the axial position of a synchronous intermediate ring in the installed state in a synchronization device.
  • the contact surfaces 25 are moved at the respective end portions 21 in the axial direction so that they serve to rest a synchronous intermediate ring in the circumferential direction while maintaining the necessary wear reserve.
  • the desired spacing of the synchronous intermediate ring from the coupling body 1 can be achieved in particular in multi-cone synchronization systems.
  • a complex post-processing such as, for example, a subsequent machining of the subsegments, can be dispensed with.
  • the end portions 21 of the sub-segments 15 are each formed in pairs rotationally symmetrical on the inner circumference 13 of the base body 3 and in a rotation of the coupling body 1 by 120 ° into one another.
  • FIG. 2 shows a detail of a further coupling body 31 for a synchronization device.
  • coupling body 31 has a substantially annular base body 33 with a coupling toothing formed on its outer circumference for engaging the toothing of a sliding sleeve during the switching operation. Due to the illustration, the coupling toothing is not shown here.
  • a circumferential collar 37 On the inner circumference 35 of the main body 33, a circumferential collar 37 is formed, which is divided into three sub-segments 39.
  • the sub-segments 39 are spaced from each other by window-shaped recesses 41 and serve the engagement of holding elements of a synchronous intermediate ring in the installed state of the coupling body 31st
  • the holding elements of the synchronous intermediate ring come in the installed state on the coupling body 31 to the plant.
  • the partial segments 39 are offset axially at their respective end sections 43.
  • a contact surface 47 is also formed on the coupling body 31 at each end section 43.
  • the contact surfaces 47 are angled at the respective end sections 43 in the axial direction 48.
  • the provision of the contact surfaces 47 takes place here by an oblique enforcement 49 of the end portions 43, which allows an axial displacement of the abutment surfaces 47 such that they can be used to create a synchronous intermediate ring while maintaining the necessary axial distance.
  • a post-processing can be omitted.
  • the end portions 43 of the sub-segments 39 are each formed in pairs rotationally symmetrical on the inner circumference 35 of the base body 33 and in a rotation of the coupling body 1 by 120 ° into one another ü- feasible.

Landscapes

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

Abstract

La présente invention concerne un corps de couplage (1, 31) destiné à un dispositif de synchronisation d'un véhicule automobile, comprenant un corps de base (3, 33) sensiblement annulaire, une denture de couplage (7, 37) formée sur la périphérie extérieure (5) du corps de base (3, 33), et un collet de butée (17, 37) qui s'étend sur la périphérie intérieure (13, 35) du corps de base (3, 33) et est réparti en segments partiels (15, 39). Selon l'invention, les segments partiels (15, 39) sont décalés axialement au niveau de leurs sections d'extrémité (21, 43) respectives pour maintenir la position axiale d'une bague intermédiaire synchrone du dispositif de synchronisation. L'invention concerne également un procédé pour réaliser un corps de couplage (1, 31) destiné à un dispositif de synchronisation d'un véhicule automobile.
PCT/DE2014/200155 2013-04-05 2014-04-04 Corps de couplage pour un dispositif de synchronisation d'un vehicule automobile WO2014161546A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201480018511.4A CN105102838B (zh) 2013-04-05 2014-04-04 用于机动车辆的同步设备的耦联体

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013206079.3A DE102013206079B3 (de) 2013-04-05 2013-04-05 Kupplungskörper für eine Synchronisationsvorrichtung eines Kraftfahrzeugs
DE102013206079.3 2013-04-05

Publications (1)

Publication Number Publication Date
WO2014161546A1 true WO2014161546A1 (fr) 2014-10-09

Family

ID=50490086

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2014/200155 WO2014161546A1 (fr) 2013-04-05 2014-04-04 Corps de couplage pour un dispositif de synchronisation d'un vehicule automobile

Country Status (3)

Country Link
CN (1) CN105102838B (fr)
DE (1) DE102013206079B3 (fr)
WO (1) WO2014161546A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006053495A1 (de) * 2006-11-14 2008-05-15 Schaeffler Kg Schiebemuffe einer Synchronisiervorrichtung
EP2100049B1 (fr) 2006-11-30 2010-06-23 Schaeffler KG Corps d'accouplement avec cône formé sur lui
DE102011103344A1 (de) * 2011-05-27 2012-11-29 PMG Füssen GmbH Verfahren zur herstellung eines bauteiles mit einem reibbelag

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101180943B1 (ko) * 2010-05-10 2012-09-07 현대자동차주식회사 변속기의 동기 치합기구

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006053495A1 (de) * 2006-11-14 2008-05-15 Schaeffler Kg Schiebemuffe einer Synchronisiervorrichtung
EP2100049B1 (fr) 2006-11-30 2010-06-23 Schaeffler KG Corps d'accouplement avec cône formé sur lui
DE102011103344A1 (de) * 2011-05-27 2012-11-29 PMG Füssen GmbH Verfahren zur herstellung eines bauteiles mit einem reibbelag

Also Published As

Publication number Publication date
DE102013206079B3 (de) 2014-05-08
CN105102838A (zh) 2015-11-25
CN105102838B (zh) 2018-10-19

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