WO2017067787A1 - Coquille d'alimentation en huile et boîte de vitesses équipée de cette coquille - Google Patents

Coquille d'alimentation en huile et boîte de vitesses équipée de cette coquille Download PDF

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Publication number
WO2017067787A1
WO2017067787A1 PCT/EP2016/073761 EP2016073761W WO2017067787A1 WO 2017067787 A1 WO2017067787 A1 WO 2017067787A1 EP 2016073761 W EP2016073761 W EP 2016073761W WO 2017067787 A1 WO2017067787 A1 WO 2017067787A1
Authority
WO
WIPO (PCT)
Prior art keywords
trough
diameter
transmission
ölleitschale
lubricant
Prior art date
Application number
PCT/EP2016/073761
Other languages
German (de)
English (en)
Inventor
Stefan Krämer
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
Priority to BR112018005913A priority Critical patent/BR112018005913A2/pt
Priority to CN201680061584.0A priority patent/CN108138943A/zh
Publication of WO2017067787A1 publication Critical patent/WO2017067787A1/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
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/042—Guidance of lubricant
    • F16H57/0421—Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
    • F16H57/0423—Lubricant guiding means mounted or supported on the casing, e.g. shields or baffles for collecting lubricant, tubes or pipes

Definitions

  • the invention relates to a ⁇ lleitschale according to the preamble of claim 1 and a transmission with a corresponding ⁇ lleitschale.
  • Oil guide shells of various constellations are known from the prior art. Such guide shells are used to store lubricant at points where it can not or should not be provided from the lubricant sump itself. This lubricant and coolant is provided at critical points without having to accept avoidable losses due to excessive immersion and Pantschen of rotating components in the lubricant sump. As a lubricant in particular oil comes into consideration. Of particular importance is the supply of those parts of the rotating components where adequate lubrication and cooling is of crucial importance. These are, for example, the areas of tooth engagement with meshing gears of a translation stage.
  • oil guide shells are formed more or less horizontally on their surface facing the rotating components, so that the thrown off
  • Lubricant flies almost vertically upwards and then either back to the inner wall of the housing back into the lubricant sump or low lubricant arrives at the desired location for lubrication and cooling.
  • an oil guide shell for a transmission with a surface region which forms at least one section in which the at least one rotating component of the transmission is received.
  • the ⁇ lleitschale is provided with a trough, which receives the rotating component.
  • Gear teeth on rotating components are often designed especially for noise reasons as helical gears, in which the individual arranged on the surface teeth are indeed formed parallel to each other, but at a different angle than 90 ° to the side surface.
  • Such helical gears form axial forces in the direction of the axis of rotation of the provided with the helical gear component. In the same way entrained by the helical gear lubricant is displaced in the direction of this axial force. If the rotating components are installed in a transmission, the forces resulting from the helical gearing, at least on the countershaft, often point in the direction of the transmission output side, which is usually lower in relation to the installed position of the transmission in the vehicle than the transmission input side.
  • the helical-toothed rotating member is disposed in an oil guide cup in which the portion in which this rotating member is disposed has a cylindrical shape in which the diameter of the rotating member receiving portion, viewed along the rotation axis, is constant remains, the lubricant is pressed by the helical teeth on the edges of the side surfaces of these sections. If no limiting devices are provided at the edges of the side surfaces of these sections, which protrudes sufficiently high above the edges of the surface of the ⁇ lleitschale, the lubricant flows in the ⁇ lleitschale in another section, in particular in a lower-lying section.
  • the lubricant is thrown off at the outlet from the trough at this edge obliquely upwards in the direction of the transmission output side, so that the lubricant is not or not completely for lubrication and cooling at the desired locations and in particular in the tooth engagement of the respective translation stage Available.
  • the present invention has for its object to provide a ⁇ lleitschale for a transmission and a gear equipped therewith, eliminate the existing shortcomings.
  • the object is achieved by a ⁇ lleitschale with the features of claim 1 and a transmission with a ⁇ lleitschale with the features of claim 12.
  • an oil guide shell for a transmission has a surface region which forms at least one section in which at least one rotating component of the transmission is provided.
  • a rotating component is in particular a gear or a gear shaft on which a toothing is formed.
  • the ⁇ lleitschale has a trough in this section, within which the rotating component is received.
  • lubricant in particular oil, which is entrained by the rotating movement of the component in the trough and undergoes an axial force, which presses the lubricant to one side of the trough in a preferably formed as a helical tooth shape of the radially outer surface.
  • the diameter of this trough is designed according to the invention so that it decreases from one side of the rotating member to the other side.
  • the trough has a shape deviating from the cylindrical shape.
  • an approximately conical shape of this trough forms, while the rotating therein component has a substantially cylindrical shape.
  • the shape of the trough is oriented so that the diameter of the trough on the side of the rotating member is lowest, to which the
  • Lubricant is pressed by the helical gearing.
  • the force acting on the lubricant is greatest in this area and decreases towards the increasing diameter down.
  • the diameter of the trough decreases evenly from the side of the largest diameter to the side of the smallest diameter.
  • a cone-shaped shape of the trough forms.
  • the angle at which the wall of the trough differs from the cylindrical shape, can be varied while taking into account the mounting position of the transmission in the vehicle.
  • the diameter of the trough from the side of the largest diameter to the side of the smallest diameter initially remains constant for a first part of the total width of the trough, so that in this first part a cylindrical shape of the trough is provided. Subsequent to this first part, the diameter decreases uniformly over a second part of the total width of the trough.
  • Another embodiment of the trough in the ⁇ lleitschale provides that the diameter of the trough decreases from the side of the largest diameter to the side of the smallest diameter out so as to give a curved wall contour of the trough.
  • the diameter starting from the largest diameter, initially decreases only in a constant, but small degree, while the diameter decrease towards the smallest diameter increases continuously.
  • this shape of the trough can be advantageously designed so that the diameter of the trough from the side of the largest diameter to the side of the smallest diameter initially remains constant for a first part of the total width of the trough and then on a second part of the total width of the trough decreases so that the curved wall contour of the trough results.
  • a cylindrical shape of the trough is provided in a first part. Subsequent to this first part, the diameter with the curved wall contour decreases here over a second part of the total width of the trough.
  • the larger diameter of the trough lies in an embodiment of the invention a geodesically lower point than the smaller diameter.
  • the oil guide bowl can advantageously also be designed so that the trough on the side of the smallest diameter has a projection against which the lubricant is pressed by the helical gearing.
  • the arrangement of such a projection is possible if the spatial conditions at the edge of the trough allow this and there is no conflict with a rotating component in a neighboring section.
  • a drainage of lubricant from the trough in a secondary section is further prevented or obstructed.
  • the trough in at least parts of the wall has a structure that directs the lubricant within the trough.
  • the lubricant can be specifically directed into areas where it is increasingly needed for cooling and lubrication and where it would otherwise not or only insufficiently available.
  • Such a structure may be formed by a projection or a gutter.
  • Fig. 1 is an oblique view of a ⁇ lleitschale
  • Fig. 2 is a ⁇ lleitschale in plan view
  • Fig. 3 is a section with a first shape of the wall
  • Fig. 4 is a section with a second shape
  • Fig. 5 shows a section with a third shape
  • Fig. 6 is a section with a fourth shape
  • Fig. 7 is a section of the wall with guide means
  • FIG. 1 shows a ⁇ lleitschale 2, of which a in the direction of to be absorbed in the ⁇ lleitschale and not shown here rotating components directed upper surface area 4 and directed in the direction of the surrounding and also not shown here gear housing surface area 6 is shown.
  • the directed in the direction of the rotating components surface area 4 is divided into several sections 8, 10, 12, 14, 16, 18, 20.
  • the troughs in sections 8 to 20 have different diameters and are provided for receiving rotating components with different diameters.
  • the portion 12 is provided for receiving a gear with a large diameter
  • the portion 10 is provided with its recess 36 for receiving a gear with respect to the gear in section 12 of smaller diameter.
  • the section 20 is suitable for receiving a shaft portion of a transmission shaft, on which the recorded in the sections 10 and 12 gears can be arranged. Between the individual sections 8 to 20 edges 32 are formed at the transitions from one section to the adjacent section, which are justified by the different diameters of the troughs of the sections.
  • Section 10 shows the trough 36 in a cone-shaped configuration. At this time, the diameter of the trough 36 at the side adjacent to the adjacent portion 12 is smaller than the diameter at the side adjacent to the adjacent portion 8.
  • FIG. 2 shows a ⁇ lleitschale 2 with the section 10, in which the conical configuration of the trough 36 is clearly visible.
  • lubricant can enter the trough 36 and is then taken by the rotating component, not shown here, which is provided in the trough 36.
  • a conical configuration of the trough 42 can be seen, wherein the conical configuration of the trough 42 is axially opposite to the trough 36.
  • the diameter of the trough 42 to the adjacent portion 16 is smaller than the diameter to the adjacent portion 20th ,
  • FIG. 3 shows in a section a section through the oil guide shell 2.
  • a gear 44 is provided in the depression 36.
  • Between the teeth 46 of the gear 44 and the wall 48 is formed from a volume whose cross-section is here formed somewhat triangular.
  • FIG. 4 shows a section similar to that shown in FIG. 3 as a section through the oil guide shell 2, in which the wall 48 in section 10 has a curved course.
  • the troughs of the sections 12 and 16 are cylindrical, while the trough 42 of the section 18 is also cone-shaped, but in the opposite axial direction, is formed.
  • FIG. 5 and FIG. 6 show, in two further cutouts of the oil guide shell 2, changed courses of the wall 48 in the region of the section 10 of the oil guide shell 2.
  • the wall 48 extends in a first part 50 of the total width of the depression 36 in FIG a cylindrical shape, wherein the diameter of the trough 36 remains constant.
  • the diameter of the trough 36 then decreases uniformly, so that the contour of the wall 48 extends in the shape of a cone to the smallest diameter, after which the oil guide hull 2 then merges into the adjacent section 12.
  • the wall 48 extends in a first part 50 in a cylindrical shape.
  • the diameter of the trough 36 then decreases, so that the contour of the wall 48 extends in a curve shape up to the smallest diameter.
  • FIG. 7 shows the oil guide shell 2 with the section 18, the trough 42 of which has a groove 54 in the edge layer adjacent to the section 20.
  • lubricant can be directed within the ⁇ lleitschale 2 and brought to a desired location.
  • the groove may also be provided in any shape in the trough 42 extending over the wall 48, so that this leads, for example, from an edge position to a central region of the trough 42 or to the opposite edge position, as indicated in the trough 42 in FIG is.

Landscapes

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

Abstract

L'invention concerne une coquille d'alimentation en huile (2) destinée à une boîte de vitesses, présentant une zone superficielle (4) qui forme au moins une partie (10) dans laquelle est placé au moins un élément rotatif (44) de la boîte de vitesses. Dans cette partie (10) dans laquelle est logé l'élément rotatif (44), la coquille d'alimentation en huile (2) forme une cavité. Le diamètre de cette cavité (36) diminue d'un côté à l'autre de l'élément rotatif (44).
PCT/EP2016/073761 2015-10-23 2016-10-05 Coquille d'alimentation en huile et boîte de vitesses équipée de cette coquille WO2017067787A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BR112018005913A BR112018005913A2 (pt) 2015-10-23 2016-10-05 casco de guia de óleo e transmissão equipada com ele
CN201680061584.0A CN108138943A (zh) 2015-10-23 2016-10-05 油导引罩和配备有油导引罩的传动设施

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015220773.0A DE102015220773A1 (de) 2015-10-23 2015-10-23 Ölleitschale und damit ausgestattetes Getriebe
DE102015220773.0 2015-10-23

Publications (1)

Publication Number Publication Date
WO2017067787A1 true WO2017067787A1 (fr) 2017-04-27

Family

ID=57113331

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/073761 WO2017067787A1 (fr) 2015-10-23 2016-10-05 Coquille d'alimentation en huile et boîte de vitesses équipée de cette coquille

Country Status (4)

Country Link
CN (1) CN108138943A (fr)
BR (1) BR112018005913A2 (fr)
DE (1) DE102015220773A1 (fr)
WO (1) WO2017067787A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017209691A1 (de) * 2017-06-08 2018-12-13 Zf Friedrichshafen Ag Schmiermitteleinrichtung und damit ausgestattetes Getriebe

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008011937A1 (de) * 2008-02-29 2009-09-03 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Abschirmung des Ritzelkopfes bei einem Doppelkupplungsgetriebe
EP2194296A2 (fr) * 2008-12-05 2010-06-09 Kawasaki Jukogyo Kabushiki Kaisha Système de lubrification pour train d'engrenages
JP2012102813A (ja) * 2010-11-10 2012-05-31 Daimler Ag 車両用変速機の整流板
WO2014156730A1 (fr) * 2013-03-28 2014-10-02 アイシン・エィ・ダブリュ株式会社 Dispositif de transmission de puissance motrice
US20150097073A1 (en) * 2013-10-08 2015-04-09 Sikorsky Aircraft Corporation Self Scavenging Gear Shield

Family Cites Families (10)

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Publication number Priority date Publication date Assignee Title
US6374951B1 (en) * 2000-02-22 2002-04-23 Eaton Corporation Gear isolation shroud for transmission
DE10245791A1 (de) * 2002-10-01 2004-04-15 Daimlerchrysler Ag Getriebegehäuse
JP4497897B2 (ja) * 2003-11-12 2010-07-07 愛知機械工業株式会社 変速機の潤滑機構
KR100692740B1 (ko) * 2003-12-03 2007-03-09 현대자동차주식회사 수동 변속기의 오일 가이드 구조
JP4409929B2 (ja) * 2003-12-19 2010-02-03 本田技研工業株式会社 デファレンシャル装置の潤滑構造
JP5116805B2 (ja) * 2010-06-08 2013-01-09 ジヤトコ株式会社 ギヤの潤滑構造
US8433485B2 (en) * 2011-01-20 2013-04-30 GM Global Technology Operations LLC Integrated oil routing sleeve and torque sensor
WO2015092471A1 (fr) * 2013-12-20 2015-06-25 Volvo Truck Corporation Agencement différentiel et essieu entraîné et véhicule automobile avec lubrification améliorée
DE102014115517A1 (de) * 2014-10-24 2016-05-12 Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg Fluidführungsvorrichtung und Kraftfahrzeuggetriebe
DE102015215788A1 (de) 2015-08-19 2017-02-23 Zf Friedrichshafen Ag Ölleitschale für ein Getriebe und Getriebe

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008011937A1 (de) * 2008-02-29 2009-09-03 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Abschirmung des Ritzelkopfes bei einem Doppelkupplungsgetriebe
EP2194296A2 (fr) * 2008-12-05 2010-06-09 Kawasaki Jukogyo Kabushiki Kaisha Système de lubrification pour train d'engrenages
JP2012102813A (ja) * 2010-11-10 2012-05-31 Daimler Ag 車両用変速機の整流板
WO2014156730A1 (fr) * 2013-03-28 2014-10-02 アイシン・エィ・ダブリュ株式会社 Dispositif de transmission de puissance motrice
US20150097073A1 (en) * 2013-10-08 2015-04-09 Sikorsky Aircraft Corporation Self Scavenging Gear Shield

Also Published As

Publication number Publication date
DE102015220773A1 (de) 2017-04-27
BR112018005913A2 (pt) 2018-10-09
CN108138943A (zh) 2018-06-08

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