WO2015180717A2 - Dispositif de synchronisation - Google Patents

Dispositif de synchronisation Download PDF

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Publication number
WO2015180717A2
WO2015180717A2 PCT/DE2015/200294 DE2015200294W WO2015180717A2 WO 2015180717 A2 WO2015180717 A2 WO 2015180717A2 DE 2015200294 W DE2015200294 W DE 2015200294W WO 2015180717 A2 WO2015180717 A2 WO 2015180717A2
Authority
WO
WIPO (PCT)
Prior art keywords
disc
synchronizing
discs
synchronizing ring
ring
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/DE2015/200294
Other languages
German (de)
English (en)
Other versions
WO2015180717A3 (fr
Inventor
Norbert Metten
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
Priority to CN201580027215.5A priority Critical patent/CN106415042B/zh
Publication of WO2015180717A2 publication Critical patent/WO2015180717A2/fr
Publication of WO2015180717A3 publication Critical patent/WO2015180717A3/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
    • F16D23/04—Arrangements for synchronisation, also for power-operated clutches with an additional friction clutch
    • 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
    • F16D11/00—Clutches in which the members have interengaging parts
    • F16D11/14—Clutches in which the members have interengaging parts with clutching members movable only axially

Definitions

  • the invention relates to a synchronizing device for adjusting the rotational speed of a clutch or brake of an automatic transmission.
  • an automatic transmission it is necessary with different speed rotating elements, usually waves or wheels, to match the speed, ie to synchronize.
  • This speed matching may be such that a non-rotating or slower rotating element is brought to the speed of the fast rotating element to be coupled, or that one faster rotating element is brought to the lower speed of the other element, with the target speed also being zero may be, so therefore the rotating element is completely decelerated.
  • this purpose in automatic transmissions such as a stepped automatic transmission, multi-plate clutches or multi-disc brakes are used, which are constructed depending on the purpose with a corresponding number of fins.
  • the disks arranged axially one behind the other require a relatively large installation space.
  • the synchronizer comprises a first and a second disc, each having a spur gear, wherein both discs are axially spaced apart and a disc for effecting engagement of the spur gear teeth is axially movable against the other disc.
  • the one disc is seated on a sleeve carrier 4 linearly movable, on which a friction cone is arranged, which is rotatable relative to the sleeve carrier against a coil spring.
  • This friction cone is provided with a locking cam, which runs at a displacement of the friction cone in the direction of sitting on the sleeve carrier disc against a locking cam of the disc in the course of the engagement, about which the disc is locked until their synchronization.
  • the other pulley runs against the friction cone via a friction cone, whereby complete engagement of the front toothings is possible when equality of rotation is achieved.
  • a switching element comprising at least three switch positions for switching two transmission stages of a transmission.
  • first end position which corresponds to a first shift position
  • second end position which corresponds to a second shift position
  • both gear ratios are switched.
  • middle position which corresponds to a third switching position
  • both gear ratios are switched.
  • a transmission is known, in which it is possible to move several gear wheels simultaneously in certain changing operations, while in turn, only a single gear can be moved in other changing operations.
  • the synchronizer comprises two rings, one of which is provided with inner fins, which engage in outer plates, which are provided on the housing side.
  • the slats form a multi-disc brake.
  • the serving as an inner disc carrier ring is provided with a spur toothing, as well as a radially inwardly projecting friction cone.
  • the other ring has a radial toothing, the front side on the spur toothing of the inner disc carrier can be intervened.
  • a friction ring against a return spring is axially movable on an axial flange.
  • the inner disc carrier ring If a request for closing, the inner disc carrier ring is pushed axially in the direction of the other ring, it comes to a system of friction surfaces of friction cone and friction ring together, so that the two rings are synchronized with increasing travel. Before the gears of the rings mesh with each other, the speed difference of the rings is equalized, so that both mesh with the same speed. With further adjustment, the lamellae engage each other, so that they are initially brought into operative connection with slipping and, with increasing pressure, rest against one another with a force fit, ie without slippage. In this state, a torque is guided by the one ring, which is designed as a planetary carrier, over the inner disk carrier onto the gearbox housing or the outer disk carrier.
  • the invention is therefore based on the problem, a simple design
  • a synchronizer according to the invention for adjusting the rotational speed of a clutch or brake of an automatic transmission comprising a first and a second disc, each having a spur gear, wherein the discs are axially spaced from each other and a disc for obtaining an engagement of Spur gears axially against the other disc is movable, wherein at least one disc rotatably with a
  • Synchronizing ring is connected, against which the disc is axially movable against a restoring force, and having a stop surface with which it runs against each other in a movement of the discs against a stop face of the other disc, both discs having a synchronizing ring, wherein the synchronizing radially offset are arranged to each other on the discs.
  • the synchronization device according to the invention ultimately consists in the simplest case of three components, namely the two end-toothed discs and the
  • Synchronizing ring which is rotatably connected to the one disc.
  • the serrations do not mesh with each other, that is, the discs are completely separated, so that in the unactuated or uncoupled state no drag torque is given.
  • the axially movable disc is moved against the other.
  • Either the axially moving disc or the stationary disc has a synchronizing ring, which is rotatably connected with it.
  • the disc is also axially movable relative to the synchronizer against a return force. Now, if the discs moved towards each other, then the synchronizing ring, which has a corresponding contact surface, runs against a contact surface on the other disc.
  • the spur gears which are, for example, roller-riveted, self-centering.
  • the synchronizing device consequently makes it possible with particular advantage for a complete separation of the spur gear discs, whereby no drag torque is given in this state.
  • the synchronizer allows speed synchronization with simultaneous positive fit of the two discs, resulting from the engagement of the spur gear teeth. Since only two discs and at least one synchronizing ring are required, the axially required space is far less than previously used Lamellenkupp- lamellae and disc brakes, which makes it possible to design the gearbox possibly more compact respectively to install the synchronizer in places where this was not possible was. Due to the small number of parts is also the Weight of the synchronizer lower than the known multi-plate clutches or disc brakes, as well as the production is inexpensive.
  • the synchronizing ring is arranged radially inwardly or radially outwardly on the disk.
  • the contact surface is, of course, correspondingly positioned on the other disk.
  • Synchronizing arranged radially outboard, wherein the corresponding contact surfaces of the discs are formed opposite to the respective synchronizing ring. If two synchronizing rings are used, the total area of the contact surfaces engaging one another is consequently significantly greater, which leads to an even faster speed synchronization.
  • the contact surfaces of the synchronizing ring or rings and the one or both disks can be circumferential axial end surfaces, but they can also be designed as revolving conical inclined surfaces.
  • At least one spring element via which the disc is sprung against the synchronizing ring.
  • This spring element is designed so that a sufficiently large restoring force is generated, which ensures that in case of relief of the synchronizing ring, the disc is also returned to its original position, so that in the following coupling lungs or braking process also initially running ahead of the synchronizing ring on the other write starts.
  • the spring element is preferably supported on a radial flange of the synchronizing ring, on the outside of which the contact surface is provided, and the axial surface of the disk carrying the front toothing is supported.
  • a spring element which can be installed in particular in the region between such a radial flange and the axial surface of the disc, a plate spring or a plate spring assembly is suitably used.
  • the or each synchronizing ring preferably has - viewed radially - in cross-section a U-profile with a limited radial flange over two radial grooves, in which radial groove, the disc is received.
  • Such a configuration also makes possible a radially compact construction, and in a simple way the integration of the spring element in the region between the one radial flange and the disk, while the other radial flange in a simple manner a movement limit for the over the spring element at discharge of the synchronizer Achieved return movement of the disc provides.
  • the synchronizing ring is non-rotatably connected to the disk, since it is supposed to ultimately effect the speed synchronization from the disk to the other disk or vice versa.
  • a plurality of apertures and provided on the disc a plurality of radial projections are provided according to an expedient development of the invention to a radial groove limiting the axial flange, which engage in the apertures. It is therefore provided on the disk side a kind of teeth, which engage in the preferably designed as axial slots, groove-side openings.
  • the apertures are slightly longer than the projections to ensure the axial displaceability of the disk relative to the synchronizing ring.
  • the invention further relates to an automatic transmission, comprising at least one synchronizer of the type described. This synchronizer can act either as a clutch or as a brake.
  • Figure 4 is a schematic diagram of an inventive
  • Figure 5 is a schematic diagram of an inventive
  • Figure 1 shows a schematic diagram of an inventive
  • Synchronizer 1 as it can be installed in an automatic transmission to equalize the speed of a clutch or a brake of the automatic transmission.
  • Such a synchronizer replaces a multi-plate clutch or multi-disc brake usually installed in such an automatic transmission, for example a stepped automatic transmission, at the same point.
  • the synchronizing device consists of two discs, a first disc 2 and a second disc 3.
  • a clutch rotate both Discs 2, 3, respectively, the elements coupled with them.
  • the synchronizer 1 it is then possible to match the rotational speeds of the elements coupled thereto, be it to synchronize a faster rotating element to a lower speed, or to bring a slower rotating element to a higher speed.
  • the synchronizing device is a brake, one of the discs 2, 3 is fixed in a fixed position, for example, to a housing or the like, and therefore does not rotate.
  • the other disc rotates and can be braked down by means of the synchronizer 1, so that it stands after the synchronization.
  • the annular disks 2, 3 each have an end toothing 4 (on the first disk 2) and 5 (on the second disk 3) and are arranged axially adjacent to one another such that the end toothings 4, 5 lie opposite one another.
  • the spur toothing is preferably a self-centering spur toothing.
  • a synchronizing ring 6 is arranged in this embodiment, which is positioned radially inwardly. It is rotatably connected to the disc 2, including the here U-shaped synchronizing ring 6, which consists of two radial flanges 7 and 8 and an axial flange 9, 9 are provided on the axial flange 9 a plurality of apertures 10 in the form of axial slots in the corresponding tooth-like projections. 1 1 engages the inner circumference of the disc 2.
  • the apertures 10 in the form of axial slots are longer than the z.
  • a plurality of such apertures 10 respectively projections 1 1 are provided around the circumference of the axial flange 9 and the disk 2.
  • the synchronizing ring 6 is designed as a cross-sectionally U-shaped profiled ring, which consequently defines a radial groove 12 in which the disc 2 engages.
  • a spring element 14 here in the form of a rotating plate spring package set. How to the disk 2 is axially movable relative to the synchronizing ring 6, that is, it is displaceable between the radial flanges 7 and 8. This shift is evident against the restoring force of the spring element 14, that is, that this is compressed in a movement in the direction of the radial flange 7.
  • the disk 2 for coupling the two elements connected to the disks 2 and 3 is moved axially in the direction of the disk 3, this movement takes place as soon as the synchronizing ring 6, which will be discussed below, contacts the disk 3 attacks, against the spring element 14, which is compressed.
  • the spring element 14 presses the disc 2 back into the basic position shown in Figure 1, in which it is pushed back to a maximum against the radial flange 8 acting as a stop.
  • the radial flange 7 has an outer diameter which is greater than the inner diameter of the disc 3. On its outer side, it has a contact surface 15, which is formed in the mounting position against a corresponding contact surface 16 on the end face 17 of the second disc 3.
  • the contact surfaces may in principle have a surface structuring or roughness or be provided with a friction lining, so that an increased frictional resistance is given. It is assumed that the disc 2 rotates while the disc 3 is stationary.
  • Synchronizing ring 6 also moved axially. He runs with its contact surface 15 after a short displacement against the contact surface 16 of the disc 3, so that there is a friction torque, which is always greater, the further the disc 2 is moved. Because with the increasing displacement and the spring element 14 is increasingly compressed. Resulting from the friction system, the disc 3 is taken, so it is accelerated and reached after a short time the same speed as the disc 2. With increasing axial displacement of the disc 2 then reaches the spur gear 4 in engagement with the spur gearing 5, so that the two discs 2, 3 as well as the waves connected to them are positively coupled to each other about this. This coupling position is shown in FIG.
  • FIG. 3 shows a further embodiment of a device according to the invention
  • Synchronizer 1 wherein the same reference numerals are used for the same components.
  • This again consists of the two discs 2, 3 and the synchronizer 6, this in turn consisting of the radial flange 7, the radial flange 8 and the axial flange 9. It thus follows again a U-profile shape, in which engages the disc 2, and in which it in turn is axially movable over the non-rotatable connection anyway.
  • the course of the contact surfaces 15 on the radial flange 7 and 16 on the disk 3 is different than in the previously described embodiment.
  • the contact surfaces 15 and 16 were axial surfaces
  • the contact surfaces 15 and 16 in the embodiment according to FIG. 3 are conical inclined surfaces. That means that the axial extended radial flange 7 is frontally provided with the inclined surface.
  • the disc 3 On this basis, the total area of the mutually engaging stop surfaces 15, 16 are increased, compared with the embodiment according to Figures 1 and 2, so that the speed synchronization takes place even faster, since the friction torque is greater.
  • FIG. 4 shows a third embodiment variant of the synchronizing device 1 according to the invention.
  • This in turn consists of the two disks 2, 3 and the synchronizing ring 6, which in turn has a U-shaped cross-sectional profile, but here is designed as a radially outer synchronizing ring.
  • It is rotatably connected in the same manner as in the embodiments described above with the disc 2, but the radial projections provided on the disc 2 are here arranged radially outboard.
  • the contact surface 16 of the disc 3 is in the region of the outer diameter of the disc 3 opposite the contact surface 15 of the synchronizer 6.
  • FIG. 5 shows a fourth embodiment of a synchronizing device 1 according to the invention.
  • it comprises the discs 2 and 3, wherein in this embodiment the disc 2 is provided with a radially outer synchronizing ring 6, while the disc 3 also has a radially inner one
  • Synchronizing ring 19 is provided.
  • both synchronizing rings have a corresponding U-shaped cross-sectional profile
  • the discs 2 and 3 are each connected in a rotationally fixed manner to the synchronizing ring 6 or 19 via the respective apertures provided on the synchronizing ring 6 and 19, respectively, and the projections provided on the disc side.
  • each disk 2, 3 is movable relative to the synchronizing ring 6 or 19 axially against the restoring force of a spring element.
  • Figure 5 shows the starting position, in turn, both disks 2, 3 and the synchronizing rings 6 and 19 are not coupled or abut each other. If now, starting from the example according to FIG. 1, the disk 2 again moves axially against the positionally fixed disk 3, the two run synchronously
  • the embodiments according to FIGS. 1-4 in the exemplary embodiments assume that the disk 2 or the shaft connected thereto is actively driven or moved, the embodiment could equally be such that the synchronizing ring 6 is arranged on the disk 3 is, which in turn is not moved.
  • the synchronizing ring 6 would, starting from Figure 1, rotated by 180 ° on the disc 3 are installed, so that the disc 2 would be moved against the radial flange 7, which causes the
  • Synchronizing ring 6 is moved axially in the direction of its associated disk 3. Equally, of course, the disc 3 shown in Figures 1 - 4 could be moved axially against the then position fixed disc 2, in which case the synchronizing would then 6 are moved to the right against the disc 2 until it for speed matching and positive engagement of the spur gears comes.
  • the synchronizer according to the invention regardless of how it is concretely configured, allows an extremely fast rotational speed synchronization with simultaneous positive coupling of the discs and thus the elements to be connected via them in an axially very compact, short design. Since the discs or the synchronizer can be completely separated or opened, no drag torque is given in this operating situation, which would adversely affect the efficiency.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Operated Clutches (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Braking Arrangements (AREA)

Abstract

L'invention concerne un dispositif de synchronisation servant à équilibrer la vitesse de rotation d'un embrayage ou d'un frein d'une transmission automatique. Le dispositif de synchronisation comprend un premier et un deuxième disque (2, 3) qui comportent chacun une denture frontale (4, 5), les disques (2, 3) étant écartés axialement l'un de l'autre et un des disques (2, 3) pouvant se déplacer axialement contre l'autre disque (2, 3) pour effectuer un engrènement des dentures frontales (4, 5). Au moins un disque (2, 3) est relié de manière solidaire en rotation à une bague de synchronisation (6, 19) contre laquelle le disque (2, 3) peut se déplacer radialement à l'encontre d'une force de rappel et qui comporte une surface d'appui (15) par laquelle elle passe contre une surface d'appui (16) de l'autre disque (2, 3) lors d'un déplacement des disques (2, 3).
PCT/DE2015/200294 2014-05-26 2015-05-04 Dispositif de synchronisation Ceased WO2015180717A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201580027215.5A CN106415042B (zh) 2014-05-26 2015-05-04 同步装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014209936.6A DE102014209936B3 (de) 2014-05-26 2014-05-26 Synchronisiereinrichtung
DE102014209936.6 2014-05-26

Publications (2)

Publication Number Publication Date
WO2015180717A2 true WO2015180717A2 (fr) 2015-12-03
WO2015180717A3 WO2015180717A3 (fr) 2016-01-21

Family

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Application Number Title Priority Date Filing Date
PCT/DE2015/200294 Ceased WO2015180717A2 (fr) 2014-05-26 2015-05-04 Dispositif de synchronisation

Country Status (3)

Country Link
CN (1) CN106415042B (fr)
DE (1) DE102014209936B3 (fr)
WO (1) WO2015180717A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018219596A1 (fr) * 2017-06-02 2018-12-06 Zf Friedrichshafen Ag Dispositif d'accouplement conçu pour transmettre un couple de rotation d'une masse oscillante à un dispositif d'entraînement et procédé correspondant
CN115285151A (zh) * 2022-08-19 2022-11-04 中车资阳机车有限公司 一种齿轨列车夹钳式驱动装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016222372B3 (de) * 2016-11-15 2018-02-01 Schaeffler Technologies AG & Co. KG Kupplung mit Wellringfeder
DE102016222539B4 (de) 2016-11-16 2021-05-06 Schaeffler Technologies AG & Co. KG Klauenkupplung mit Synchronisiereinrichtung
CN108626392B (zh) 2017-03-15 2021-08-10 贺尔碧格传动技术控股有限公司 用于机动车的换挡设备以及机动车变速器
FR3135765B1 (fr) * 2022-05-18 2024-05-10 Ferrand Dispositif d’accouplement

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB339694A (en) 1929-09-21 1930-12-18 Bernard Thomson Improvements in and relating to variable transmission gears
DE1030692B (de) 1955-03-17 1958-05-22 Egon Martyrer Dr Ing Synchronisierungseinrichtung fuer schwere, grosse Leistungen uebertragende Zahnradwechselgetriebe, insbesondere fuer Strassen- und Schienenfahrzeuge
DE10244523A1 (de) 2002-09-25 2004-04-08 Zf Friedrichshafen Ag Getriebe und Verfahren zum Steuern eines Getriebes mit wenigstens einem Schaltelement
DE102007040040A1 (de) 2007-08-24 2009-02-26 Zf Friedrichshafen Ag Schaltelement umfassend zumindest drei Schaltstellungen zum Schalten von zwei Übersetzungsstufen

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Publication number Priority date Publication date Assignee Title
GB333694A (en) * 1929-06-28 1930-08-21 Karel Vondra Improvements in clutches for motor cars and other machines
US4773518A (en) * 1987-02-19 1988-09-27 Sundstrand Corporation Electromagnetic clutch
CN2773402Y (zh) * 2004-12-20 2006-04-19 张辉伦 一种牙嵌分离式自动制动装置
DE112011103425A5 (de) * 2010-10-11 2013-07-25 Magna Powertrain Ag & Co. Kg Kopplungsanordnung
CN102418752B (zh) * 2011-11-15 2014-01-22 魏伯卿 开闭式花瓣夹套刚性啮合磁控自动离合方法及其装置
CN102537123B (zh) * 2012-01-29 2013-07-10 魏伯卿 端面锥齿啮合磁控自动离合装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB339694A (en) 1929-09-21 1930-12-18 Bernard Thomson Improvements in and relating to variable transmission gears
DE1030692B (de) 1955-03-17 1958-05-22 Egon Martyrer Dr Ing Synchronisierungseinrichtung fuer schwere, grosse Leistungen uebertragende Zahnradwechselgetriebe, insbesondere fuer Strassen- und Schienenfahrzeuge
DE10244523A1 (de) 2002-09-25 2004-04-08 Zf Friedrichshafen Ag Getriebe und Verfahren zum Steuern eines Getriebes mit wenigstens einem Schaltelement
DE102007040040A1 (de) 2007-08-24 2009-02-26 Zf Friedrichshafen Ag Schaltelement umfassend zumindest drei Schaltstellungen zum Schalten von zwei Übersetzungsstufen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018219596A1 (fr) * 2017-06-02 2018-12-06 Zf Friedrichshafen Ag Dispositif d'accouplement conçu pour transmettre un couple de rotation d'une masse oscillante à un dispositif d'entraînement et procédé correspondant
CN115285151A (zh) * 2022-08-19 2022-11-04 中车资阳机车有限公司 一种齿轨列车夹钳式驱动装置

Also Published As

Publication number Publication date
CN106415042B (zh) 2019-06-07
CN106415042A (zh) 2017-02-15
WO2015180717A3 (fr) 2016-01-21
DE102014209936B3 (de) 2015-09-10

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