WO2008138721A1 - Système de lubrification et de refroidissement des éléments d'embrayage à disques d'une boîte-pont arrière - Google Patents

Système de lubrification et de refroidissement des éléments d'embrayage à disques d'une boîte-pont arrière Download PDF

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Publication number
WO2008138721A1
WO2008138721A1 PCT/EP2008/054963 EP2008054963W WO2008138721A1 WO 2008138721 A1 WO2008138721 A1 WO 2008138721A1 EP 2008054963 W EP2008054963 W EP 2008054963W WO 2008138721 A1 WO2008138721 A1 WO 2008138721A1
Authority
WO
WIPO (PCT)
Prior art keywords
transmission
oil
carrier
cooling
arrangement
Prior art date
Application number
PCT/EP2008/054963
Other languages
German (de)
English (en)
Inventor
Michael Donaubauer
Alois BÖCK
Florian Knedler
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 WO2008138721A1 publication Critical patent/WO2008138721A1/fr

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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
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/048—Type of gearings to be lubricated, cooled or heated
    • F16H57/0482—Gearings with gears having orbital motion
    • F16H57/0483—Axle or inter-axle differentials
    • 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
    • F16D25/00—Fluid-actuated clutches
    • F16D25/12—Details not specific to one of the before-mentioned types
    • F16D25/123—Details not specific to one of the before-mentioned types in view of cooling and lubrication
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/16—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing
    • 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
    • F16H—GEARING
    • F16H48/00—Differential gearings
    • F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
    • F16H48/22—Arrangements for suppressing or influencing the differential action, e.g. locking devices using friction clutches or brakes

Definitions

  • the present invention relates to an arrangement for lubricating or cooling the multi-disk shift elements of a rear axle or a transmission device for distributing a drive torque to at least two output shafts according to the preamble of patent claim 1.
  • a transmission module for variable torque distribution in the drive train of a motor vehicle which is rotatably mounted relative to a stationary housing about a rotation axis, a second drive shaft connected to the first shaft, one in the torque flow between the first shaft and the second shaft arranged gear stage with at least one planetary gear and the at least one planet carrier supporting member which can rotate about the axis of rotation and comprises a clutch which is supported on the housing and serves for coupling of the support member relative to the housing.
  • a differential gear comprising a rotatable member on the input side for receiving an external driving force, two rotatable components on the output side, which are arranged coaxially to the axis of rotation of the input-side rotatable member, a transmission housing, in in that the input-side component and the output-side components are freely rotatably mounted, wherein a rotational force of the input-side rotatable component is transmitted to the output-side rotatable components, while a different rotational speed between the output-side rotatable components is allowed.
  • This differential gear further includes a first input side gear mounted on the input side rotatable member at one axial end thereof which is rotatable together with the input side rotatable member, a second input side gear mounted on the input side rotatable member and together therewith is rotatable, a first output-side gear having a delay ratio which is larger or smaller with respect to the first input-side gear, wherein the first output-side gear is rotatable together with the output-side rotatable components, a second output-side gear having a deceleration ratio which is smaller or larger with respect to the second input-side gear is at least one planetary gear meshing with the first input-side gear and the first output-side gear, and at least one second planetary gear with the second input-side gear and de m second output-side gear meshes.
  • the second input-side gear is arranged on the input-side rotatable component at one axial end, wherein the second output-side gear is coaxially rotatable with one of the output-side rotatable components.
  • the differential gear on a carrier which supports the first planetary gear and the second planetary gear so that they can rotate about their own axes and rotate about the axis of rotation of the input-side rotatable member.
  • a first rotation control for controlling the rotation of the carrier about the rotation axis of the input side rotatable member with any control force and a second rotation control for controlling the rotation of the second output side gear with any control force
  • the rotation controls comprise a number of friction plates, the together with the carrier or the second output-side gear are rotatable, and a number of friction plates, which are rotatable together with the housing;
  • pressure means are provided for compressing the friction plates with any pressure force.
  • two planetary gear sets are positioned next to a standard cone compensation differential such that a sun gear of the respective planetary gear set on the differential carrier and a second, sun gear driven sun gear are arranged on the output shaft.
  • the planetary gear sets have no ring gear and the webs of the planetary gear sets can be coupled to generate a torque vectoring torque by means of a multi-disc brake to the housing, whereby a moment is passed from the differential carrier in the direction of the respective wheel.
  • the present invention has for its object to provide an arrangement by which a cooling or lubrication of the Lamellenschaltele- elements of a Häachsgetriebes or a transmission device for distributing a drive torque to at least two output shafts is made possible without the need for an oil pump.
  • an arrangement for lubricating or cooling the slat lenschaltiata a rear axle or a transmission device for distributing a drive torque to at least two output shafts in which radially considered in the upper or outer region of the transmission above the respective switching element, an oil collection chamber is arranged such that the thrown by the rotation of the rotating components of the transmission oil is conveyed into the oil sump.
  • Running according to the invention the collected oil through housing feedthroughs in the direction of the transmission center axis in the disk carrier and is pressed by the occurring centrifugal forces through the slats of the disk switching element.
  • the lamellae of the inner disk carrier or the inner disks of the disk switching element are arranged in milled slots, which serve as driving teeth and oiling openings.
  • the inventive concept eliminates the need for an oil pump for lubricating the multi-disc brakes; due to the combination of splash lubrication (the lamellae partially submerge in the oil level) and internal lubrication ensures effective cooling. Furthermore, the manufacture of the arrangement according to the invention is simple and inexpensive.
  • Figure 1 is a sectional view of a part of a Schuachsgetriebes, which represents a lamellar switching element and an executed according to the invention oil catchment space, wherein the switching element is a brake, the inner disk carrier is connected to the planet carrier of a planetary gear set;
  • Figure 2 A view of the milled slots of the planet carrier of the transmission according to Figure 1, which serve according to the invention as driving teeth and oiling holes; and
  • Figure 3 A perspective view of a part of the housing of a Schuachsgetriebes illustrating the formed according to the invention oil catchment space.
  • FIG. 1 shows a part of a rear axle 1 is shown, in which two planetary gear sets 5 are arranged on each side of a conical differential, so that a drive-side sun gear 8 of the respective planetary gear set 5 on the differential carrier and a second sun gear 6 abthebs workedes arranged on the output shaft 7 is.
  • the planet carrier 2 of the planetary gear sets for generating a torque-vectoring torque can be coupled in each case by means of a multi-disc brake 3 to the housing 4, whereby a moment is passed from the differential carrier in the direction of the respective wheel.
  • an oil collecting chamber 9 is arranged such that the thrown by the rotation of the rotating components of the transmission 1 oil is conveyed into the oil collecting chamber 9.
  • the oil collected in the oil-collecting chamber 9 passes through housing passages through the ball-ramp mechanism for actuating the switching element 3 via the bearing neck in the direction of the transmission center axis into the disk carrier and is pressed by the lamellae of the switching element 3 due to the occurring centrifugal forces.
  • the direction of the oil flow is illustrated by the arrow 10 in the figure.
  • FIG. 3 is a perspective view of a part of the housing 4 for illustrating the oil catchment space 9.
  • the invention provides an arrangement for cooling or lubricating the multi-disk shift elements of a rear axle or a transmission device for distributing a drive torque to at least two output shafts, which is simple in construction and does not require an oil pump.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Details Of Gearings (AREA)

Abstract

L'invention concerne un ensemble de refroidissement et de lubrification des éléments d'embrayage à disques (3) d'une boîte-pont arrière (1) ou d'un dispositif de transmission pour répartir un couple moteur sur au moins deux arbres menés. Dans ledit système, en vue radiale, un espace collecteur d'huile (9) est disposé dans la zone supérieure ou externe de la boîte au-dessus de l'élément d'embrayage (3) correspondant, de telle sorte que l'huile centrifugée par la rotation des éléments rotatifs de la boîte (1) est transportée dans l'espace collecteur d'huile (9). Ledit système comporte des passages ménagés dans le carter, par lesquels l'huile collectée dans l'espace collecteur d'huile (9) peut s'écouler en direction de l'axe médian de boîte dans le porte-disques où elle est introduite, comprimée par les forces centrifuges produites, à travers les disques de l'élément d'embrayage à disques (3).
PCT/EP2008/054963 2007-05-11 2008-04-24 Système de lubrification et de refroidissement des éléments d'embrayage à disques d'une boîte-pont arrière WO2008138721A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007022182.9A DE102007022182B4 (de) 2007-05-11 2007-05-11 Getriebevorrichtung zum Verteilen eines Antriebsmomentes auf wenigstens zwei Abtriebswellen
DE102007022182.9 2007-05-11

Publications (1)

Publication Number Publication Date
WO2008138721A1 true WO2008138721A1 (fr) 2008-11-20

Family

ID=39643892

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/054963 WO2008138721A1 (fr) 2007-05-11 2008-04-24 Système de lubrification et de refroidissement des éléments d'embrayage à disques d'une boîte-pont arrière

Country Status (2)

Country Link
DE (1) DE102007022182B4 (fr)
WO (1) WO2008138721A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010036826B4 (de) * 2010-08-03 2014-05-28 Gkn Driveline Köping Ab Ausgleichseinheit eines Antriebsstrangs eines Kraftfahrzeugs sowie dessen Aufbau zur verlustminimierten Bedarfsbeölung
EP2574827B1 (fr) 2011-09-30 2014-02-26 GKN Driveline Köping AB Composant d'embrayage doté d'un dispositif de drainage d'huile
JP6131796B2 (ja) 2013-09-13 2017-05-24 アイシン・エィ・ダブリュ株式会社 動力伝達装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988002450A1 (fr) * 1986-09-30 1988-04-07 Zahnradfabrik Friedrichshafen Ag Frein a friction refroidi par liquide
DE19722151A1 (de) * 1996-05-29 1997-12-04 Exedy Corp Drehmomentwandler mit Überbrückungskupplung
DE10127944A1 (de) * 2000-06-09 2002-04-11 Dana Corp Achsanordnung mit flüssigkeitsgekühlter Bremse
AT8015U1 (de) * 2005-02-25 2005-12-15 Magna Steyr Fahrzeugtechnik Ag Differentialgetriebeeinheit für kraftfahrzeuge mit aktiver steuerung der antriebskraftverteilung
DE102006046487A1 (de) * 2005-10-07 2007-04-19 Toyota Jidosha Kabushiki Kaisha, Toyota Automatikgetriebe

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3366210A (en) * 1965-08-26 1968-01-30 Mack Trucks Wet clutch lubricating system
US4693350A (en) * 1979-02-05 1987-09-15 Sommer Co. Clutch-brake unit
JPS62283237A (ja) * 1986-05-31 1987-12-09 Asano Haguruma Kosakusho:Kk 差動制限装置の潤滑機構
DE4011022A1 (de) * 1989-04-08 1990-10-11 Zahnradfabrik Friedrichshafen Triebachse
JP3103779B2 (ja) 1996-11-22 2000-10-30 建治 三村 差動装置
DE102004047329A1 (de) * 2003-11-14 2005-06-16 Tochigi Fuji Sangyo K.K. Drehmomentübertragungsvorrichtung und Gehäuseaufbau
DE102005004290B4 (de) 2005-01-28 2006-11-02 Gkn Driveline International Gmbh Getriebemodul zur variablen Drehmomentverteilung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988002450A1 (fr) * 1986-09-30 1988-04-07 Zahnradfabrik Friedrichshafen Ag Frein a friction refroidi par liquide
DE19722151A1 (de) * 1996-05-29 1997-12-04 Exedy Corp Drehmomentwandler mit Überbrückungskupplung
DE10127944A1 (de) * 2000-06-09 2002-04-11 Dana Corp Achsanordnung mit flüssigkeitsgekühlter Bremse
AT8015U1 (de) * 2005-02-25 2005-12-15 Magna Steyr Fahrzeugtechnik Ag Differentialgetriebeeinheit für kraftfahrzeuge mit aktiver steuerung der antriebskraftverteilung
DE102006046487A1 (de) * 2005-10-07 2007-04-19 Toyota Jidosha Kabushiki Kaisha, Toyota Automatikgetriebe

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DE102007022182B4 (de) 2015-08-06
DE102007022182A1 (de) 2008-11-13

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