• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The lubricant guiding baffle (1) for feeding a hollow shaft (1) comprises a disk arc (4), a tubular lubricant introduction tube (5) for engaging the lubricant (2). inside the hollow shaft (1). The disk arc (4) forms on one face (9) at least one cavity (6) intended to be capped at least partially by the end of the shaft (3). At least one cavity (6) is adapted to collect the flow of lubricant (2) from a delivery chute (7) of the lubricant (2) and has contours adapted to guide the flow of lubricant (2) to the tubular cannula (5).
    公开号:FR3056666A1
    申请号:FR1659000
    申请日:2016-09-26
    公开日:2018-03-30
    发明作者:Virginie Chabert；Flavien VILLIERS；Frederic Maudet；Patrice Mercay
    申请人:Renault SAS；
    IPC主号:
    专利说明:

    ® FRENCH REPUBLIC
    NATIONAL INSTITUTE OF INDUSTRIAL PROPERTY © Publication number: 3,056,666 (to be used only for reproduction orders)
    ©) National registration number: 16 59 000
    COURBEVOIE © Int Cl 8 : F16 H 57/04 (2017.01), F 16 H 57/027, F 16 N 7/26
    A1 PATENT APPLICATION
    ©) Date of filing: 09.26.16. (© Applicant (s): RENAULT S.A.S Joint-stock company (© Priority: simplified - FR. @ Inventor (s): CHABERT VIRGINIE, VILLIERS FLAVIEN, MAUDET FREDERIC and MERCAY (43) Date of public availability of the PATRICE. request: 30.03.18 Bulletin 18/13. ©) List of documents cited in the report preliminary research: Refer to end of present booklet (© References to other national documents (73) Holder (s): RENAULT S.A.S Société par actions sim- related: folded. ©) Extension request (s): (© Agent (s): CASALONGA.
    loAJ LUBRICANT GUIDE DEFLECTOR FOR THE SUPPLY OF A HOLLOW SHAFT OF GEARBOX.
    FR 3 056 666 - A1
    This deflector (1) for guiding the lubricant (2) for supplying a hollow shaft (1) comprises a disc arc (4), a tubular cannula (5) for introducing lubricant (2) intended to be engaged with the inside of the hollow shaft (1).
    The disc arc (4) forms on one face (9) at least one cavity (6) intended to be capped at least partially by the end of the shaft (3). At least one cavity (6) is adapted to collect the lubricant flow (2) coming from a lubricant delivery chute (7) and has contours adapted to guide the lubricant flow (2) towards the tubular cannula (5).
    Lubricant guide deflector for supplying a hollow gearbox shaft
    The present invention relates to the lubrication of a gearbox, and more precisely the lubrication of a hollow gearbox shaft, by a flow of oil circulating inside of it.
    It relates more particularly to a device for guiding oil to the interior of a hollow gearbox shaft, called deflector, intended to cover at least partially one of the ends of the hollow shaft or a bearing bearing located at one end of the hollow shaft.
    With such a device, the internal lubrication of a gearbox stack is done by pouring oil through a cannula at the entrance of the axial bore of the shaft. This oil enters the cannula after having accumulated in a reserve of oil establishing itself between the end of the shaft and the open part of the deflector.
    A known arrangement is illustrated by the document FR 3 001 019. The arrangement described in this document comprises a first deflector associated with a first gear train, a second deflector associated with a second gear train and means for guiding, by gravity, the lubricant towards the first deflector. This deflector is capable of overflowing towards the second deflector to supply it with lubricant by means of a conduit in which the lubricant flows by gravity.
    In such an arrangement, the flow of lubricant must be from an inlet located above the axis of the shaft of the gear train.
    We know from document CN 201818771 another lubrication device for a gearbox. This document illustrates a bearing having a shape adapted to allow the lubrication of the underlying rolling bearing. However, it does not disclose a deflector for supplying lubricant to a hollow shaft.
    Document FR 2 879 709 describes a conventional deflector, with reduced overall dimensions in that it rests on the bottom of the casing. Oil is distributed in the gearbox there using a lubricant collection and distribution chute located in the upper part of the gearbox. This chute collects the lubricant projections from the gearbox gears, and guides the lubricant thus collected by gravity towards the deflector located in the axis of the hollow shaft supporting the idler gears to be lubricated.
    The lubricant enters the hollow shaft using a cannula which enters the hollow shaft and collects the flow of lubricant along the roughness of the deflector. This document does not disclose an arrangement in which the inlet of the lubricant is below the axis of the hollow shaft into which the lubricant is intended to be driven.
    The present invention aims to improve existing systems by proposing a deflector comprising shapes and sections which, combined with the driving of the lubricant by the hollow rotating shaft, make it possible to guide the lubricant from a lubricant delivery chute to inside a hollow tree.
    The subject of the invention is thus a lubricant guide deflector for supplying a hollow shaft, comprising a disc arc and a tubular cannula for introducing lubricant intended to be engaged inside the hollow shaft. The disc arc comprises on one of its faces, at least one cavity intended to be at least partially capped by the end of the shaft, said at least one cavity being adapted to collect the flow of lubricant coming from a lubricant delivery chute whose contours guide the flow of lubricant towards the tubular cannula.
    According to one embodiment, said at least one cavity is delimited by a side wall, perpendicular to the plane of the disc arc, along a part of the edge of the disc arc.
    According to a characteristic of the invention, the deflector comprises a crown extending radially from said at least one cavity towards the outside.
    According to another embodiment, an opening is made in the side wall so that said at least one cavity can be in fluid communication with a lubricant delivery chute.
    According to another embodiment, the hollow shaft is rotated about a horizontal axis.
    According to another embodiment, the lubricant delivery chute is located under a horizontal plane comprising the axis of the hollow shaft.
    According to another embodiment, the tubular lubricant introduction cannula extends coaxially to the hollow shaft towards the inside of the hollow shaft.
    According to another characteristic of the invention, the deflector comprises means for fixing to the deflector relative to a gearbox casing, said casing being intended, in addition, to support the hollow shaft at at least one of its ends by a step.
    According to another characteristic of the invention, the deflector further comprises an indexing stud adapted to fit into a notch formed in the bearing of the housing.
    According to another embodiment, a first and a second flank of the disc arc form a V oriented opposite a groove formed in the bearing of the casing to allow the vertical escape of the air present in the cavity.
    According to another characteristic of the invention, the deflector further comprises one or more scrapers located partially along the first or second flank.
    According to another characteristic of the invention, the tubular cannula comprises an opening made in the longitudinal extension of the sidewalls over at least part of its length.
    Other characteristics and advantages of the invention will appear on reading a non-limiting embodiment thereof, with reference to the accompanying drawings in which:
    - Figure 1 is a sectional view of a gearbox of the prior art;
    - Figure 2 is a perspective representation of the deflector according to the invention;
    - Figure 3 is a cross-sectional view of a gearbox comprising the deflected deflector and which does not feed the shaft line correctly;
    - Figure 4 is a cross-sectional view of a gearbox comprising a deflector kept stationary in a position promoting the flow of the lubricant according to the invention; and
    - Figure 5 is a longitudinal sectional view of a part of the gearbox centered on the end of the shaft to be lubricated by means of the deflector according to the invention.
    FIG. 1 shows a gearbox comprising a casing 10 into which a deflector 1 and a hollow shaft 3 are introduced.
    The deflector 1 comprises a disc-shaped portion 4, open in the shape of a V, the top of which joins a tubular cannula 5 which penetrates into the axial bore 20 of the hollow shaft 3.
    The internal lubrication of a stack of pinions of a gearbox can indeed be carried out by collecting lubricant 2 sprayed by pinions of the box in a receptacle 23 in fluid communication with a chute 7 adapted to pour the lubricant between the deflector 1 and one end of the hollow shaft 3, before being introduced into the axial bore 20 of the hollow shaft 3 by a tubular cannula 5 engaged in the inlet of this bore 20. The lubricant 2 then enters the tubular cannula 5 by gravity or slides to the tubular cannula 5 after being thrown against scrapers 14.
    Reference is made to FIG. 2 which illustrates a deflector 1 connected integrally to a tubular cannula 5 for introducing lubricant 2 into a hollow shaft 3 of the gearbox. One of the faces of the disc arc 4, designated by the reference 9, is shaped so as to form a cavity 6 to collect the flow of lubricant 2 and the contours of which form obstacles to guide the lubricant 2 in movement towards the cannula. tubular 5. These contours include a side wall 8 of the disc arc 4 running along the outer edge, thus producing a partial rim of the face of the disc arc 4, and a ring 16 extending radially from the cavity. 6 towards the outside of the disc arc 4 along the outside edge of this face 9.
    The side wall 8 and the crown 16 are separated by a neck 17 extending from the cavity 6 to the outer edge of the disc arc 4. They are intended to be capped by the end of the hollow shaft 3 , by a hollow screw 18 at the end of the hollow shaft 3, or by a rolling bearing 19 supporting the hollow shaft 3.
    When the cavity 6 is surrounded by the side wall 8 and the crown 16 on the one hand, and by the end of the hollow shaft 3 on the other hand, the neck 17 ensures fluid communication with the chute
    7.
    The tubular cannula 5 is placed in the center of the deflector 1, and is intended to be introduced into the axial bore 20 of the hollow shaft
    3. An opening is made over the entire length of the tubular cannula 5 in the extension of the flanks 15a and 15b in V of the disc arc 4, in this case, in the upper part of the tubular cannula 5.
    In another embodiment, the surface 21 at the bottom of the cavity 6 is adjustable in height to modify its proximity to the rotating parts, such as the hollow shaft 3 or the rolling bearing 19 opposite, to optimize the quantity of lubricant 2 admitted into the cavity 6, and control the flow rate in the V.
    The deflector 1 of FIG. 2 further comprises an indexing stud 12a to ensure, during assembly, an orientation and a correct position of the deflector 1. This stud 12a is adapted to cooperate with a notch 12b produced in the housing of the deflector in housing 10.
    We can thus obtain only one and only possibility of mounting and therefore of orientation of the deflector 1 in the casing 10.
    With reference to FIG. 3 which illustrates a particular assembly of the deflector 1, the delivery chute 7 of the lubricant 2 is located under an axis A of the hollow shaft 3. The arrangement of the V facing the chute routing 7 of the lubricant is not limiting. In fact, a wrong orientation of the deflector 1 can create a zone of mixing of the lubricant, and lead to a partial blockage of the path of the flow of lubricant 2.
    In accordance with FIG. 4, the V of the deflector 1 is oriented upwards.
    A groove is made in the deflector housing in the casing 10 to allow the vertical escape of the air present in the cavity 6. The V of the deflector 1 can be oriented opposite this groove to facilitate degassing .
    In another configuration of the gearbox, shown in longitudinal section in FIG. 5, a hollow shaft 3 comprises a thread 24 in the inlet of an axial bore 20 to cooperate with a hollow screw 18.
    The hollow shaft is provided with a shoulder at one of its ends to come into abutment with an inner ring 25 of rolling bearing 19. This inner ring 25 is held in its position after screwing in the hollow screw 18.
    As seen in Figure 5, a deflector 1 is inserted in a housing of the housing 10 provided for this purpose. A space 26 can be arranged between the deflector 1 and the rotating parts such as the hollow screw 18, the end of the hollow shaft 3, or the inner ring 25 of the rolling bearing 19.
    A tubular cannula 5 extending from the center of the deflector 1 towards the inside of the hollow shaft 3 is adapted to introduce the lubricant 2 into the hollow shaft 3.
    An indexing stud 12a is added to the deflector 1 to ensure the correct orientation and respect for the unique position of the latter during assembly.
    Rotating the hollow shaft 3 clockwise causes the lubricant 2 to rotate in the same direction by friction. The lubricant 2 thus set in rotation is wound up and projected against the scrapers 14, and against the end of the hollow shaft 3 discovered by the V-shaped opening of the deflector 1, materialized by a first flank 15a and a second flank 15b. The lubricant 2 thus stopped by the scrapers 14 trickles along the sides 15a and 15b of the V as well as along the end of the hollow shaft 3. This trickling can thus be carried out over the entire height of the side 15a of the V if the opposite pieces allow it.
    The side 15b of the upstream V, considering the direction of rotation of the hollow shaft, makes it possible to recover the flow of lubricant 2 returned by the scraper 14 by the force of projection of the lubricant 2.
    权利要求:
    Claims (12)
    [1" id="c-fr-0001]
    1. Lubricant guiding deflector (1) (2) for supplying a hollow shaft (3), comprising a disc arc (4) and a tubular cannula (5) for introducing lubricant (2) intended to be engaged in the interior of the hollow shaft (3), characterized in that the disc arc (4) forms on one of its faces (9), at least one cavity (6) intended to be capped at least partially by the end of the shaft (3), said at least one cavity (6) being adapted to collect the flow of lubricant (2) coming from a lubricant delivery duct (7) (2) and the contours guide the flow of lubricant (2) to the tubular cannula (5).
    [2" id="c-fr-0002]
    2. Lubricant guiding deflector (1) according to claim 1, wherein said at least one cavity (6) is delimited by a side wall (8), perpendicular to the plane of the disc arc (4), along of part of the edge of the disc arc (4).
    [3" id="c-fr-0003]
    3. Deflector (1) for lubricant guide (2) according to any one of the preceding claims, comprising, a crown (16) extending radially from said at least one cavity (5) towards the outside.
    [4" id="c-fr-0004]
    4. deflector (1) for lubricant guide (2) according to any one of the preceding claims, in which an opening (17) is made in the side wall (8) so that said at least one cavity (5) can be in fluid communication with a lubricant conveying chute (7) (2).
    [5" id="c-fr-0005]
    5. Deflector (1) for lubricant guide (2) according to any one of the preceding claims, in which the hollow shaft (3) is rotatable about a horizontal axis (A).
    [6" id="c-fr-0006]
    6. Lubricant guiding deflector (1) (2) according to claim 5, in which the lubricant conveying chute (2) is located under a horizontal plane comprising the axis (A) of the hollow shaft (3 ).
    [7" id="c-fr-0007]
    7. deflector (1) for guiding the lubricant (2) according to any one of the preceding claims, in which the tubular cannula (5) for introducing lubricant (2) extends coaxially to the hollow shaft (3) towards the inside of the hollow shaft (3).
    [8" id="c-fr-0008]
    8. Deflector (1) for lubricant guide (2) according to any one of the preceding claims, comprising means
    5 (12a and 12b) for fixing the deflector relative to a gearbox casing (10), said casing (10) being intended, in addition, to support the hollow shaft (3) at at least one of its ends by a bearing (19).
    [9" id="c-fr-0009]
    9. Deflector (1) for lubricant guide (2) according to claim 8, further comprising an indexing stud (12a) adapted
    [10" id="c-fr-0010]
    10 to fit into a notch (12b) formed in the bearing (19) of the housing (20).
    10. deflector (1) for lubricant guide (2) according to claims 8 or 9, wherein a first (15a) and a second flank (15b) of the disc arc (4) form a V oriented vis- against a
    15 groove made in the housing bearing (10) to allow the vertical escape of air present in the cavity (6).
    [11" id="c-fr-0011]
    11. deflector (1) for lubricant guide (2) according to claim 10, further comprising one or more scrapers (14) located partially along the first (15a) or the second flank
    20 (15b).
    [12" id="c-fr-0012]
    12. deflector (1) for lubricant guide (2) according to claims 10 or 11, wherein the tubular cannula (5) comprises an opening (17) formed in the longitudinal extension of the sides (15a and 15b) on at least one part of its length.
    1/3
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    同族专利:
    公开号 | 公开日
    FR3056666B1|2020-05-22|
    EP3516268A1|2019-07-31|
    BR112019005880A2|2019-06-11|
    EP3516268B1|2020-08-05|
    RU2714366C1|2020-02-14|
    WO2018055245A1|2018-03-29|
    CN109863333A|2019-06-07|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JPS57137861U|1981-02-23|1982-08-28|
    FR2879709A1|2004-12-20|2006-06-23|Renault Sas|OIL GUIDING DEVICE FOR HOLLOW SHAFT OF GEARBOX|
    CN201818771U|2010-10-13|2011-05-04|上海捷能汽车技术有限公司|Gearbox with bearing lubrication circuit|US10309523B2|2016-05-30|2019-06-04|Subaru Corporation|Driving force transmission device of vehicle|
    EP3869070A1|2020-02-24|2021-08-25|LG Electronics Inc.|Gear system|SU1654620A1|1988-05-30|1991-06-07|Мелитопольский моторный завод|Gear-box|
    DE19831208C1|1998-07-04|1999-05-06|Abb Daimler Benz Transp|Shaft seal for motor vehicle transmission casing|
    FR3001019B1|2013-01-14|2016-05-13|Renault Sa|ARRANGEMENT FOR THE LUBRICATION OF TWO GEAR TRAINS NEIGHBORHOOD VERTICALLY|FR3104661A1|2019-12-17|2021-06-18|Renault Sas|LUBRICATION DEVICE AND GEARBOX SHAFT LINE|
    法律状态:
    2017-09-28| PLFP| Fee payment|Year of fee payment: 2 |
    2018-03-30| PLSC| Search report ready|Effective date: 20180330 |
    2018-09-24| PLFP| Fee payment|Year of fee payment: 3 |
    2019-09-26| PLFP| Fee payment|Year of fee payment: 4 |
    2020-09-14| PLFP| Fee payment|Year of fee payment: 5 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1659000A|FR3056666B1|2016-09-26|2016-09-26|LUBRICANT GUIDING DEFLECTOR FOR SUPPLYING A HOLLOW GEAR SHAFT|
    FR1659000|2016-09-26|FR1659000A| FR3056666B1|2016-09-26|2016-09-26|LUBRICANT GUIDING DEFLECTOR FOR SUPPLYING A HOLLOW GEAR SHAFT|
    BR112019005880A| BR112019005880A2|2016-09-26|2017-06-22|lubricant guide deflector for feeding a hollow gearbox tree|
    PCT/FR2017/051670| WO2018055245A1|2016-09-26|2017-06-22|Deflector for guiding lubricant to supply a hollow shaft of a gearbox|
    RU2019112555A| RU2714366C1|2016-09-26|2017-06-22|Reflector guiding lubricating fluid for supply of hollow shaft of gearbox|
    EP17740057.9A| EP3516268B1|2016-09-26|2017-06-22|Deflector for guiding lubricant to supply a hollow shaft of a gearbox|
    CN201780065637.0A| CN109863333A|2016-09-26|2017-06-22|Lubricant is guided to provide it to the conducting element of the hollow shaft of gear-box|
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