EP1646812A1 - Arbre a guide d'huile - Google Patents

Arbre a guide d'huile

Info

Publication number
EP1646812A1
EP1646812A1 EP04740364A EP04740364A EP1646812A1 EP 1646812 A1 EP1646812 A1 EP 1646812A1 EP 04740364 A EP04740364 A EP 04740364A EP 04740364 A EP04740364 A EP 04740364A EP 1646812 A1 EP1646812 A1 EP 1646812A1
Authority
EP
European Patent Office
Prior art keywords
shaft
channels
interior
tube
oil
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.)
Withdrawn
Application number
EP04740364A
Other languages
German (de)
English (en)
Inventor
Gabor Diosi
Josef Haupt
Martin Brehmer
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.)
ZF Friedrichshafen AG
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 EP1646812A1 publication Critical patent/EP1646812A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/04Features relating to lubrication or cooling or heating
    • F16H57/042Guidance of lubricant
    • F16H57/043Guidance of lubricant within rotary parts, e.g. axial channels or radial openings in shafts
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C3/00Shafts; Axles; Cranks; Eccentrics
    • F16C3/02Shafts; Axles
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/04Features relating to lubrication or cooling or heating
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H61/00Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H61/00Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H2061/0046Details of fluid supply channels, e.g. within shafts, for supplying friction devices or transmission actuators with control fluid
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H61/00Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/0003Arrangement or mounting of elements of the control apparatus, e.g. valve assemblies or snapfittings of valves; Arrangements of the control unit on or in the transmission gearbox
    • F16H61/0009Hydraulic control units for transmission control, e.g. assembly of valve plates or valve units
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16NLUBRICATING
    • F16N21/00Conduits; Junctions; Fittings for lubrication apertures
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16NLUBRICATING
    • F16N7/00Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
    • F16N7/36Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with feed by pumping action of the member to be lubricated or of a shaft of the machine; Centrifugal lubrication
    • F16N7/363Centrifugal lubrication

Definitions

  • the invention relates to an oil-carrying shaft according to the preamble of independent claims 1 and 7.
  • Shafts are known in many areas of technology, through whose axial bore a liquid or gaseous medium can be passed. Such shafts are also used in particular in transmissions where it is important to conduct a hydraulic oil under pressure from a control pressure source to a transmission component to be actuated with this control pressure medium, as space-saving as possible.
  • Transmission components of this type are generally piston-cylinder arrangements with which clutches or brakes of the transmission can be actuated, or with which the distance between conical disks of a continuously variable belt transmission can be adjusted to change the transmission ratio.
  • two or more axial bores arranged in parallel next to one another can also be provided in the shaft according to the prior art.
  • the control pressure medium can be fed into and removed from the axial bores at the ends of the axial bores and / or via radial bores in the shaft, which are fluidically connected to the axial bores.
  • the control pressure medium in the different lines generally having different control pressures.
  • a hollow cylindrical tube is inserted into a preferably coaxial bore of the shaft, which tube forms a first pressure medium line with its axial cavity ,
  • a further pressure medium line is also created, which is connected in terms of printing technology to the actuators mentioned at the beginning, with generally radially oriented feed or discharge bores.
  • a primary shaft of a continuously variable belt transmission with an axial bore is known, for example, from DE 199 21 750 AI, into which a tube which is rotationally sealed against this axial bore and which itself has two longitudinal bores is inserted.
  • a secondary shaft of a continuously variable belt transmission is known from DE 196 03 598 AI, in which a tube inserted into an axial bore of this shaft is fixed with one end in the transmission housing in a rotationally fixed manner, while the other tube end is in one slide bearing arranged in the axial bore is mounted.
  • the hollow cylindrical interior of the tube serves as the first control pressure line, while a cylindrical annular space formed between the outside diameter of the tube and the inside diameter of the axial bore forms a second control pressure line.
  • US Pat. No. 6,015,359 A discloses a secondary shaft of a continuously variable belt transmission with an axial bore, in which a special plug is firmly inserted.
  • This stopper divides the secondary shaft axial bore into two chambers, the stopper itself being supplied centrally with a control pressure medium via a tube likewise inserted into the axial bore.
  • This control pressure medium which is under high pressure, can be conducted via three radial plug bores and a radially outer annular gap into associated radial secondary shaft bores.
  • three small axial bores are formed in the stopper, which connect the two aforementioned chambers with one another in terms of flow technology.
  • the oil-carrying shaft has a shaft interior which is coaxial or axially parallel to the shaft longitudinal axis, and a means arranged in this shaft interior for dividing the shaft interior into at least two oil-conducting channels which are separate from one another.
  • the channels are designed as channels which are initially open along their longitudinal extent (similar to axial grooves) on the inner wall of the shaft and are separated from one another and sealed off from one another by a tube inserted into the shaft interior.
  • the open channels of the shaft are formed by bores which overlap in terms of their cross-sectional geometry. These open channels can be introduced or formed in the shaft, for example, by means of a drilling tool or by kneading.
  • the initially still open channels are designed in the form of a circular arc in cross section. Furthermore, it can make sense that the open channels are arranged in the shaft in such a way that their longitudinal axes lie on an imaginary plane. In another variant of the invention, on the other hand, it can be provided that at least two of the initially still open channels are added to form another open channel. are ordered that their three longitudinal axes are not on an imaginary plane.
  • the oil-carrying shaft is also provided with a hollow cylindrical shaft interior which is coaxial or axially parallel to the shaft longitudinal axis, a means for dividing the shaft interior being arranged in at least two channels separated from one another in the shaft interior.
  • a profiled tube is arranged in this hollow cylindrical shaft interior, the circumferential surfaces of which deviate from a circular geometry form the desired channels or lines with the respectively opposite regions of the shaft inner wall.
  • these shafts can have a number of advantageous configurations.
  • At least one radial lubricant bore is formed in the shaft, which leads from a lubricant source to the tube arranged in the shaft interior.
  • the pipe has at least at one of its ends a connection area with which it is supported on the wall of the shaft interior and / or is mounted there and seals the oil-carrying channels against one another.
  • the geometry of the tube inserted into the shaft interior it can be provided that it has a cylindrical, three-legged, star-shaped or rectangular cross-sectional geometry with an at least partially circular outer circumference. About this at least partially circular outer circumference, the tube is supported pressure-tight on the wall of the shaft interior to form the channels.
  • the tube inserted into the interior of the shaft can be designed as a hollow or as a solid profile.
  • a tube designed as a hollow profile however, has the advantage that its interior inside the shaft interior can be used as one of the channels for the oil.
  • FIG. 1 shows a longitudinal section through a gear shaft with axial oil-guiding channels formed in the central area
  • FIG. 2 shows a cross section through the shaft according to FIG. 1 in the central area, but without an inserted tube
  • FIG. 3 shows a cross section through the shaft as in FIG. 2, but with the tube inserted
  • 4 shows a cross section through another shaft with an inserted tube
  • FIG. 5 shows a longitudinal section through another transmission shaft with axial oil-guiding channels formed in the central area
  • FIG. 6 shows a cross section through the shaft according to FIG. 5 in the central area with inserted rectangular tube
  • FIG. 7 shows a cross section through the shaft according to FIG. 5 with inserted star-shaped or three-legged tube
  • FIG. 8 shows a cross section through the shaft according to FIG. 5 with inserted star-shaped or three-legged solid profile.
  • FIG. 1 shows a cross section through a transmission shaft 1, in the central area of which an axially extending cavity is formed, which is referred to below as the shaft interior 35.
  • This shaft interior 35 comprises three channels 3 which are still open in the preassembly state; 4; 5, which are formed in the structure chosen for the figures 1 to 3 like three superimposed and overlapping circular bores.
  • a tube 6 After a tube 6 has been inserted into this shaft interior 35, it separates the three channels 3; 4/5 so pressure-tight that they can be used, for example, as independent control pressure lines.
  • the tube 6 is inserted with its one end 20 in a blind bore of the shaft 1 in a rotationally fixed manner, while the other end 19 of the tube 6 is mounted in the central bore of the shaft 1.
  • FIG. 1 shows that radial pressure medium supply bores 37 or pressure medium discharge bores 38 and / or lubricant bores 7 are also formed in the shaft 1, each with one of the channels 3; 4/5 fluidically communicate.
  • Fig. 2 now shows a cross section of the shaft 1 in its central region.
  • the channels 3; 4; 5 still open, so that they form the elongated shaft interior 35 with a common inner wall 2.
  • the channels 3; 4/5 arranged in relation to one another in the shaft 1 such that their longitudinal axes together with the shaft longitudinal axis 34 lie on an imaginary plane 36 running through the shaft 1.
  • the tube 6 inserted into this shaft interior separates the channels 3; 4; 5 from each other.
  • FIG. 4 now shows a cross section through another shaft 8, the shaft interior of which is formed by four overlapping circular arc-shaped channels 9 that are still open in the shaft material; 10; 11 is formed.
  • the tube 13 By inserting the tube 13, the three radially outer channels 9; 10/11 separated axially and radially from the tube 13 in a pressure-tight manner, a fourth channel 12 being formed by the tube 13 if it is designed as a hollow profile as shown here.
  • a multiplicity (here four) of channels 9; 10; 11; 12 can be formed, the number of which depends only on the wave diameter and the necessary cross-section of the channels.
  • the shaft interior 35 of the shaft 1; 8 can advantageously be produced by overlapping bores, by kneading a pipe blank in this regard or by a suitable casting mold.
  • the shaft 14 which is largely comparable to the shaft 1 is provided with a cylindrical shaft interior 39 which is aligned coaxially with the longitudinal axis 34 of the shaft 14.
  • a tube 16 is inserted into this shaft interior 39, which with its two axial ends 17; 18 is rotatably and pressure-tightly connected to the inner wall 15 of the shaft 14.
  • the tube 16 in this case has an essentially rectangular cross-sectional geometry in its central region, although two of the four sides of this rectangle are geometrically attached to the inner wall 15 of the shaft interior 39. have suitable surfaces. As a result, these are pressure-tight against said inner wall 15.
  • the other two sides of the rectangular profile preferably have an axial cross-section reduction in the sense of two axially aligned longitudinal grooves, so that in this area between the inner wall 15 of the shaft and the outer wall of the tube, two channels 21; 22 are formed with an approximately lenticular cross-sectional geometry.
  • a third channel 23 is present inside the rectangular tube 16.
  • the shaft 14 has at least one radial bore 33 which is used as a pressure medium supply or pressure medium discharge bore or as a lubricant supply bore or as a lubricant discharge bore.
  • a look at FIG. 7 shows that while maintaining the coaxial shaft interior 39, a tube 27 which is approximately star-shaped or triangular in cross-section can also be inserted therein, through which the shaft interior 39 when selecting a hollow profile (as in this exemplary embodiment) in a total of four channels 24; 25; 27; 28 can be divided.
  • FIG. 8 shows that by inserting a three-leg solid profile 32 into the shaft interior 39 of the tube 14, which can be produced very cost-effectively, with a comparatively low manufacturing cost, a comparatively thin shaft 14 with a total of three oil-carrying channels 29; 30; 31 can be produced.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
  • General Details Of Gearings (AREA)

Abstract

L'invention concerne un arbre à guide d'huile (1 ; 8) comprenant un volume intérieur (35) parallèle à l'axe longitudinal de l'arbre (34), éventuellement coaxial à cet axe, ainsi que des moyens prévus dans ce volume (35), destinés à diviser ledit volume intérieur en au moins deux canaux guides d'huile séparés l'un de l'autre. En vue de disposer d'une pluralité de canaux guides d'huile dans un arbre relativement mince (1 ; 8), l'invention est caractérisée en ce que les canaux (3 ; 4 ; 5 ; 9 ; 10 ; 11 ; 12) sont réalisés sous la forme de canaux (3 ; 4 ; 5 ; 9 ; 10 ; 11 ; 12) ouverts sur leur étendue longitudinale, sur la paroi intérieure (2) de l'arbre (1), et sont séparés les uns des autres par un tube (6 ; 13) inséré dans ledit volume intérieur (35) de l'arbre, tout en étant maintenus étanches entre eux.
EP04740364A 2003-07-23 2004-06-28 Arbre a guide d'huile Withdrawn EP1646812A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10333432A DE10333432A1 (de) 2003-07-23 2003-07-23 Ölführende Welle
PCT/EP2004/006962 WO2005019699A1 (fr) 2003-07-23 2004-06-28 Arbre a guide d'huile

Publications (1)

Publication Number Publication Date
EP1646812A1 true EP1646812A1 (fr) 2006-04-19

Family

ID=34042041

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04740364A Withdrawn EP1646812A1 (fr) 2003-07-23 2004-06-28 Arbre a guide d'huile

Country Status (7)

Country Link
US (1) US20060191746A1 (fr)
EP (1) EP1646812A1 (fr)
JP (1) JP2006528316A (fr)
KR (1) KR20060037378A (fr)
CN (1) CN1820156A (fr)
DE (1) DE10333432A1 (fr)
WO (1) WO2005019699A1 (fr)

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DE102006036686A1 (de) * 2006-08-05 2008-02-07 Zf Friedrichshafen Ag Ölführende Welle, insbesondere Kupplungswelle für eine nasse Lamellenkupplung
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JP4926793B2 (ja) * 2007-04-10 2012-05-09 アイシン・エーアイ株式会社 トランスミッションの潤滑構造
US8025081B2 (en) * 2007-11-09 2011-09-27 GM Global Technology Operations LLC Fluid transfer insert
US7878911B2 (en) * 2007-11-09 2011-02-01 GM Global Technology Operations LLC Fluid transfer tube
US8298109B2 (en) * 2010-03-02 2012-10-30 Competition Cams, Inc. Transmission lubrication assembly
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US9506553B2 (en) 2014-02-28 2016-11-29 Deere & Company Composite shaft with core insert
DE102014215406A1 (de) 2014-08-05 2016-02-11 Zf Friedrichshafen Ag Verfahren zur Herstellung einer Getriebewelle, umfassend zumindest einen axial verlaufenden Ölkanal
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US10309522B2 (en) * 2017-01-23 2019-06-04 Borgwarner Inc. Transfer case pump with multiple flow paths to internal components
BE1025361B9 (nl) * 2017-07-05 2019-03-11 Punch Powertrain Nv Smeer- en/of koelinrichting voor, en een continu variabele transmissie systeem met een dergelijke smeer- en/of koelinrichting
DE102018218400A1 (de) * 2018-10-26 2020-04-30 Zf Friedrichshafen Ag Welle für ein Kraftfahrzeuggetriebe
DE102019200534A1 (de) 2019-01-17 2020-07-23 Zf Friedrichshafen Ag Fluidführende Welle eines Getriebes eines Kraftfahrzeugs
DE102019202447A1 (de) * 2019-02-22 2020-08-27 Zf Friedrichshafen Ag Getriebewelle, Getriebe und Kraftfahrzeug-Antriebsstrang
CN111457078B (zh) * 2020-04-03 2022-11-18 中国航发哈尔滨东安发动机有限公司 一种油管组合喷嘴
CN113833768B (zh) * 2021-09-26 2022-07-12 珠海格力电器股份有限公司 轴承润滑结构及电机
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Also Published As

Publication number Publication date
JP2006528316A (ja) 2006-12-14
KR20060037378A (ko) 2006-05-03
DE10333432A1 (de) 2005-02-10
CN1820156A (zh) 2006-08-16
WO2005019699A1 (fr) 2005-03-03
US20060191746A1 (en) 2006-08-31

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