WO2017067787A1 - Oil-guiding shell and transmission equipped therewith - Google Patents
Oil-guiding shell and transmission equipped therewith Download PDFInfo
- 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
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.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201680061584.0A CN108138943A (en) | 2015-10-23 | 2016-10-05 | Oil guiding cover and the transmission facility equipped with oil guiding cover |
BR112018005913A BR112018005913A2 (en) | 2015-10-23 | 2016-10-05 | transmission and oil guide hull equipped with it |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015220773.0A DE102015220773A1 (en) | 2015-10-23 | 2015-10-23 | Oil guide bowl and gearbox equipped with it |
DE102015220773.0 | 2015-10-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2017067787A1 true WO2017067787A1 (en) | 2017-04-27 |
Family
ID=57113331
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2016/073761 WO2017067787A1 (en) | 2015-10-23 | 2016-10-05 | Oil-guiding shell and transmission equipped therewith |
Country Status (4)
Country | Link |
---|---|
CN (1) | CN108138943A (en) |
BR (1) | BR112018005913A2 (en) |
DE (1) | DE102015220773A1 (en) |
WO (1) | WO2017067787A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017209691A1 (en) * | 2017-06-08 | 2018-12-13 | Zf Friedrichshafen Ag | Lubricant device and gear equipped therewith |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008011937A1 (en) * | 2008-02-29 | 2009-09-03 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Twin-clutch gear box for motor vehicles, has housing of gearbox, pinion shaft with pinion head and crown wheel intermeshing with pinion head, which is connected with output shaft of gearbox |
EP2194296A2 (en) * | 2008-12-05 | 2010-06-09 | Kawasaki Jukogyo Kabushiki Kaisha | Lubricating system for gear train |
JP2012102813A (en) * | 2010-11-10 | 2012-05-31 | Daimler Ag | Straightening vane of transmission for vehicle |
WO2014156730A1 (en) * | 2013-03-28 | 2014-10-02 | アイシン・エィ・ダブリュ株式会社 | Motive power transmission device |
US20150097073A1 (en) * | 2013-10-08 | 2015-04-09 | Sikorsky Aircraft Corporation | Self Scavenging Gear Shield |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6374951B1 (en) * | 2000-02-22 | 2002-04-23 | Eaton Corporation | Gear isolation shroud for transmission |
DE10245791A1 (en) * | 2002-10-01 | 2004-04-15 | Daimlerchrysler Ag | Gearbox housing, in a vehicle transmission, has an additional inner wall section at the housing wall and/or closure cover, matching the gear contour to give the lubricating oil flow |
JP4497897B2 (en) * | 2003-11-12 | 2010-07-07 | 愛知機械工業株式会社 | Transmission lubrication mechanism |
KR100692740B1 (en) * | 2003-12-03 | 2007-03-09 | 현대자동차주식회사 | Oil guide structure for Manual transmission |
JP4409929B2 (en) * | 2003-12-19 | 2010-02-03 | 本田技研工業株式会社 | Lubrication structure of differential equipment |
JP5116805B2 (en) * | 2010-06-08 | 2013-01-09 | ジヤトコ株式会社 | Gear lubrication structure |
US8433485B2 (en) * | 2011-01-20 | 2013-04-30 | GM Global Technology Operations LLC | Integrated oil routing sleeve and torque sensor |
WO2015092471A1 (en) * | 2013-12-20 | 2015-06-25 | Volvo Truck Corporation | Differential arrangement and driven axle and automotive vehicle with improved lubrication |
DE102014115517A1 (en) * | 2014-10-24 | 2016-05-12 | Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg | Fluid guiding device and motor vehicle transmission |
DE102015215788A1 (en) | 2015-08-19 | 2017-02-23 | Zf Friedrichshafen Ag | Oil guide bowl for a gearbox and gearbox |
-
2015
- 2015-10-23 DE DE102015220773.0A patent/DE102015220773A1/en active Pending
-
2016
- 2016-10-05 WO PCT/EP2016/073761 patent/WO2017067787A1/en active Application Filing
- 2016-10-05 CN CN201680061584.0A patent/CN108138943A/en active Pending
- 2016-10-05 BR BR112018005913A patent/BR112018005913A2/en not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008011937A1 (en) * | 2008-02-29 | 2009-09-03 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Twin-clutch gear box for motor vehicles, has housing of gearbox, pinion shaft with pinion head and crown wheel intermeshing with pinion head, which is connected with output shaft of gearbox |
EP2194296A2 (en) * | 2008-12-05 | 2010-06-09 | Kawasaki Jukogyo Kabushiki Kaisha | Lubricating system for gear train |
JP2012102813A (en) * | 2010-11-10 | 2012-05-31 | Daimler Ag | Straightening vane of transmission for vehicle |
WO2014156730A1 (en) * | 2013-03-28 | 2014-10-02 | アイシン・エィ・ダブリュ株式会社 | Motive power transmission device |
US20150097073A1 (en) * | 2013-10-08 | 2015-04-09 | Sikorsky Aircraft Corporation | Self Scavenging Gear Shield |
Also Published As
Publication number | Publication date |
---|---|
DE102015220773A1 (en) | 2017-04-27 |
BR112018005913A2 (en) | 2018-10-09 |
CN108138943A (en) | 2018-06-08 |
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