WO2014108121A1 - Dispositif de synchronisation d'une boîte de vitesses à engrenages d'un véhicule automobile - Google Patents

Dispositif de synchronisation d'une boîte de vitesses à engrenages d'un véhicule automobile Download PDF

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Publication number
WO2014108121A1
WO2014108121A1 PCT/DE2013/200334 DE2013200334W WO2014108121A1 WO 2014108121 A1 WO2014108121 A1 WO 2014108121A1 DE 2013200334 W DE2013200334 W DE 2013200334W WO 2014108121 A1 WO2014108121 A1 WO 2014108121A1
Authority
WO
WIPO (PCT)
Prior art keywords
spring
coupling body
gear wheel
synchronizing device
damping element
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/DE2013/200334
Other languages
German (de)
English (en)
Inventor
Johannes Utz
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.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler Technologies AG and 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 and Co KG filed Critical Schaeffler Technologies AG and Co KG
Publication of WO2014108121A1 publication Critical patent/WO2014108121A1/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
    • 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
    • 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
    • F16D2023/0637—Details relating to the hub member on which the sliding is arranged
    • 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
    • F16D2023/065—Means to provide additional axial force for self-energising, e.g. by using torque from the friction clutch

Definitions

  • the invention relates to a synchronizing device of a motor vehicle gear change transmission, comprising at least one coupling body, which is non-rotatably connected to a gear wheel, and at least one synchronizer ring.
  • a synchronizing device of this kind is known, for example, from DE 20 2006 019 959 U1.
  • Such a synchronizer has inter alia a coupling body which is rotatably connected to a gear wheel of the transmission.
  • a package of synchronizer rings is usually present, which serve to equalize the speed of the components during a transmission switching operation.
  • the coupling body is either welded by default to the gear wheel or connected with a gear teeth with the gear wheel (in addition, there is also the design as a monoblock).
  • the splines can either allow an axial displacement of the coupling body or the two components (gear wheel and coupling body) are secured against axial displacement or axial play.
  • there is a "free-flying phase" of the ring-shaped moving elements which often results in a double pressure point when shifting from one gear to the other, as the already synchronized component is again subject to a difference due to drag torques. speed can be awarded.
  • the sliding sleeve of the arrangement beats on the rigidly connected toothing of the coupling body.
  • a double pressure point or several additional pressure points can be transmitted to the circuit and thus ultimately to the driver's hand.
  • the present invention is based on the invention to further develop a synchronizing device of the type mentioned in the introduction in such a way that the mentioned disadvantage is avoided. Accordingly, the synchronizer should be characterized by an increased shift comfort. The shift quality should therefore be improved. This applies in particular with regard to dual-clutch transmissions and here especially with automatically connected transmissions.
  • the solution to this problem by the invention is characterized in that the coupling body is rotatably but axially displaceable on or on the gear wheel, wherein at least one effective in the axial direction spring and / or damping element between the clutch body and the gear wheel is arranged ,
  • the at least one spring and / or damping element is preferably designed as a plate spring, wave spring, helical compression spring, annular spring or ring made of E lastomer or rubber material.
  • a plurality of disc springs (arranged in the same package or arranged in opposite directions as a column) may be arranged in the package between the coupling body and the gear wheel.
  • the gear wheel preferably has an outer profiling, which cooperates with an inner profiling in the coupling body.
  • the profiles are preferably formed as a toothing.
  • three pins are used, which are arranged distributed around the circumference and allow an axial displacement between the coupling body and gear wheel, but prevent relative rotation of these components.
  • the gear wheel may have a cylindrical portion on which the coupling body is arranged axially displaceable.
  • the gear wheel may also have an end face which adjoins the cylindrical portion and forms a contact surface for the at least one spring and / or damping element.
  • the at least one spring and / or damping element can be connected to the coupling body.
  • the at least one spring and / or damping element and the coupling body are connected to one another by material connection, in particular by welding, by form fit or by frictional engagement.
  • connection can be done for example by jamming, so that frictional engagement is present.
  • a positive fit grooves or recesses can be provided.
  • the coupling body is thus axially displaceable according to the invention on the gear wheel. Between the gear wheel and the coupling body at least one axially acting spring and / or damping element is arranged.
  • the spring and / or damping element thus acts between the gear wheel and the coupling body in the axial direction.
  • the coupling body is against rotation tiv to the gear wheel in particular secured with a toothing; However, a relative axial movement between the gear and clutch body is possible.
  • resilient elements eg a plate spring or a shaft spring
  • damping elements eg a ring made of rubber material
  • the coupling body, together with the synchronizing package is accelerated against the sliding sleeve by the spring and / or damping element prestressed during the synchronizing process at the end of the synchronization process.
  • the above-mentioned "free-flying phase" is also advantageously shortened.
  • the second pressure point is smaller and thus results in a higher shifting comfort.
  • Fig. 1 in radial section a part of a synchronizer of a
  • FIG. 2 shows the gear wheel and the coupling body of the synchronizer in radial section according to a first embodiment of the invention
  • 3 shows a detail of the representation according to FIG. 2 according to a second embodiment of the invention
  • FIG. 4 shows a detail of the illustration according to FIG. 2 according to a third
  • FIG. 5 shows a detail of the illustration of FIG. 2 according to a fourth
  • FIG. 1 a part of a synchronizer 1 is shown.
  • An outer synchronizer ring 10, a synchronizer intermediate ring 1 1 and an inner synchronizer ring 4 form a ring package.
  • a synchronizer body 12 is fixed with internal teeth for rotationally fixed arrangement on a transmission shaft.
  • a gear 3 is arranged. With the gear 3, a coupling body 2 is connected. This has recesses 13, engage in the drive cam 14 of the intermediate ring 1 1.
  • the intermediate ring 1 1 forms with the Jacobreib Chemistry of the outer synchronizer ring 10 as a counter-cone a first friction pair 15; with the Gegenreibification the inner synchronizer ring 4, the intermediate ring 1 1 forms a second friction pair 16.
  • a sliding sleeve 17 is moved in the axial direction a to switch the corresponding gears.
  • An inboard 18 of the inner synchronizer ring 4 is interrupted by recesses and partially hidden by a shoulder of the synchronizer body 12. The heel engages in the recesses.
  • the inner synchronizer ring 4 is positively connected to the synchronizer body 12.
  • the outer synchronizer ring 10 is positively connected via its board to the synchronizer body 12.
  • the coupling body 2 has an end face, which is designed for the frictional start of an end face of the inner synchronizer ring 4. Accordingly, the coupling body 2 and the inner synchronizer ring 4 abut each other during a switching operation at a contact surface.
  • FIG. 2 Details of the embodiment according to the invention can be seen from FIG. 2 for a first embodiment of the invention.
  • the coupling body 2 in the axial direction a slidably, but rotatably connected to the gear 3.
  • the coupling body 2 has an internal toothing 7, which is formed to match an external toothing 6, which is incorporated on the gear wheel 3.
  • the gear wheel 3 has a cylindrical portion 8 which carries on its outer periphery said outer teeth 6. At the (right) axial end of the cylindrical portion 8, a radially extending end face 9 connects.
  • the spring and / or damping element 5 is presently designed as a plate spring, which rests with its radially outer end on the end face 9. The radially inner end of the plate spring 5 is located in the radially inner region of the coupling body 2.
  • Fig. 3 shows an alternative embodiment to the solution according to FIG. 2.
  • a spring element 5 a helical spring is provided, or there are several, for. B. four, coil springs 5 arranged around the circumference around to ensure a uniform compression in the axial direction a for the clutch body 2 relative to the gear 3.
  • the gear wheel 3 facing ends of the coil springs 5 are arranged here in preferably circular recesses 20 to give the coil springs 5 in the radial direction and in the circumferential direction stop.
  • a ring of rubber material is used here as the spring and / or damping element 5. Accordingly, here - in contrast to the solution discussed above - the damping of the axial movement between the coupling body 2 and the gear 3 in the foreground.
  • the coupling body 3 is guided in its axial movement relative to the gear wheel 3.
  • a guide pin 21 is inserted into the gear 3; a receiving bore 23 in the coupling body 2 is tolerated to the outer periphery of the guide pin 21 with clearance, so that a sliding seat in the axial direction a for the coupling body 2 on the guide pin 21 is present.
  • the spring and / or damping element 5 is designed here as a helical spring. This includes the guide pin 21 and is guided in the axial direction.
  • a recess 20 may again be provided; but this is not mandatory.
  • the guide pin 21 can sit in the bore 22 with clearance and between the guide pin 21 and the receiving bore 23 press fit.

Landscapes

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

Abstract

L'invention concerne un dispositif de synchronisation (1) d'une boîte de vitesses à engrenages d'un véhicule automobile, comprenant au moins un corps d'embrayage (2) qui est relié solidaire en rotation à un pignon de rapport (3) ainsi qu'au moins une bague de synchronisation (4). Pour augmenter le confort de changement de vitesses, l'invention propose que le corps d'embrayage (2) soit disposé solidaire en rotation mais axialement déplaçable contre ou sur le pignon de rapport (3), au moins un élément ressort et/ou amortisseur (5) qui agit dans la direction axiale (a) étant disposé entre le corps d'embrayage (2) et le pignon de rapport (3).
PCT/DE2013/200334 2013-01-14 2013-12-06 Dispositif de synchronisation d'une boîte de vitesses à engrenages d'un véhicule automobile Ceased WO2014108121A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013200397.8 2013-01-14
DE102013200397.8A DE102013200397A1 (de) 2013-01-14 2013-01-14 Synchronisiereinrichtung eines Kraftfahrzeug-Zahnräderwechselgetriebes

Publications (1)

Publication Number Publication Date
WO2014108121A1 true WO2014108121A1 (fr) 2014-07-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2013/200334 Ceased WO2014108121A1 (fr) 2013-01-14 2013-12-06 Dispositif de synchronisation d'une boîte de vitesses à engrenages d'un véhicule automobile

Country Status (2)

Country Link
DE (1) DE102013200397A1 (fr)
WO (1) WO2014108121A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114877035A (zh) * 2022-07-12 2022-08-09 清华大学 带单向自适应接合装置的变速器系统及其换档控制方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019134433A1 (de) 2019-12-16 2020-07-09 Schaeffler Technologies AG & Co. KG Kupplungskörperanordnung für eine Synchronisiereinrichtung eines Getriebes
DE102021132821B3 (de) * 2021-12-13 2023-01-05 Schaeffler Technologies AG & Co. KG Kupplung mit beidseitig beaufschlagbarem Kolben und axialelastischer Endanschlagscheibe für Schiebemuffe
DE102023200518A1 (de) * 2023-01-24 2024-07-25 Zf Friedrichshafen Ag Getriebevorrichtung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3217950A1 (de) * 1982-05-13 1983-11-17 Getrag Getriebe- Und Zahnradfabrik Gmbh, 7140 Ludwigsburg Synchronisiereinrichtung fuer schaltkupplungen
EP0444785A1 (fr) * 1990-02-28 1991-09-04 Massey Ferguson Manufacturing Limited Accouplement pour engrenage
EP1688633A1 (fr) * 2005-02-08 2006-08-09 Renault s.a.s. Dispositif de synchronisation à rattrapage de garde d'usure
DE202006019959U1 (de) 2006-12-23 2007-06-28 Schaeffler Kg Synchronring einer Synchronisiereinrichtung
FR2959544A1 (fr) * 2010-04-29 2011-11-04 Peugeot Citroen Automobiles Sa Dispositif de synchronisation pour boite de vitesses et boite de vitesses le comportant

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3217950A1 (de) * 1982-05-13 1983-11-17 Getrag Getriebe- Und Zahnradfabrik Gmbh, 7140 Ludwigsburg Synchronisiereinrichtung fuer schaltkupplungen
EP0444785A1 (fr) * 1990-02-28 1991-09-04 Massey Ferguson Manufacturing Limited Accouplement pour engrenage
EP1688633A1 (fr) * 2005-02-08 2006-08-09 Renault s.a.s. Dispositif de synchronisation à rattrapage de garde d'usure
DE202006019959U1 (de) 2006-12-23 2007-06-28 Schaeffler Kg Synchronring einer Synchronisiereinrichtung
FR2959544A1 (fr) * 2010-04-29 2011-11-04 Peugeot Citroen Automobiles Sa Dispositif de synchronisation pour boite de vitesses et boite de vitesses le comportant

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114877035A (zh) * 2022-07-12 2022-08-09 清华大学 带单向自适应接合装置的变速器系统及其换档控制方法

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