WO2017202548A1 - Rondelle de butée en arc pour le carter moteur d'un moteur à combustion interne à pistons alternatifs - Google Patents

Rondelle de butée en arc pour le carter moteur d'un moteur à combustion interne à pistons alternatifs Download PDF

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Publication number
WO2017202548A1
WO2017202548A1 PCT/EP2017/059463 EP2017059463W WO2017202548A1 WO 2017202548 A1 WO2017202548 A1 WO 2017202548A1 EP 2017059463 W EP2017059463 W EP 2017059463W WO 2017202548 A1 WO2017202548 A1 WO 2017202548A1
Authority
WO
WIPO (PCT)
Prior art keywords
thrust washer
over
starting
washer according
main body
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.)
Ceased
Application number
PCT/EP2017/059463
Other languages
German (de)
English (en)
Inventor
Mark Voigt
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.)
Volkswagen AG
Original Assignee
Volkswagen 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 Volkswagen AG filed Critical Volkswagen AG
Priority to CN201780032187.5A priority Critical patent/CN109154324A/zh
Publication of WO2017202548A1 publication Critical patent/WO2017202548A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C9/00—Bearings for crankshafts or connecting-rods; Attachment of connecting-rods
    • F16C9/02—Crankshaft bearings
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/04—Sliding-contact bearings for exclusively rotary movement for axial load only
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/14—Special methods of manufacture; Running-in
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2360/00—Engines or pumps
    • F16C2360/22—Internal combustion engines

Definitions

  • the invention relates to an arcuate thrust washer for a
  • Cylinder crankcase of a reciprocating internal combustion engine according to the preamble of claim 1.
  • the invention relates to a trained as half ring thrust washer, which is arranged in a cylinder crankcase of a reciprocating internal combustion engine and serves as an axial thrust element for a crankshaft cheek a crankshaft of a reciprocating internal combustion engine.
  • a symmetrically formed half ring of a thrust washer is known, which is produced by punching out of a sheet metal strip.
  • This half-ring has a uniform thickness.
  • Cylinder crankcase come to an area of the cylinder crankcase widens in the axial direction, in particular during assembly of a bearing cap with a cylinder crankcase.
  • This expansion is referred to below as Lagerlaubbergerweitung.
  • Lagerbisetzweitung To a Lagerlaubbergerweitung it can come in particular if the cylinder crankcase and the bearing cap are made of different materials, for example, if the cylinder crankcase made of aluminum and the bearing cap made of steel or gray cast iron.
  • a Lagerstuhlaufweitung usually has the consequence that changes the relative position of the thrust washer relative to the crankshaft cheek (at least slightly). There is an inclination (tilting), due to an axial force acting on the thrust washer in the area of the Lagerstuhlaufweitung.
  • the invention has for its object to provide a thrust washer available, which is improved in terms of their life.
  • An arcuate thrust washer according to the invention has a first free end of the arc and a second free end of the arc as well as extending between the ends of the arc
  • the main body is subdivided from a thrust washer center axis into two virtual arc sections extending over the same angle.
  • Extension direction of the body formed thickness of the body is in at least one, along the arc-shaped extension direction of the body to
  • Thrust washer center axis formed toward starting region formed multi-level rising or continuously increasing.
  • a plurality of thickness jumps which are also spaced apart from the free arched ends can be formed (optionally also with
  • Rounding radii or a continuous, ie rounded, outer contour while avoiding discontinuities in the mathematical sense) and / or the thickness can be formed continuously growing in the run-up area, in particular linearly increasing.
  • an inclination (tilting) of the thrust washer for example due to a Lagerlaubberger the cylinder crankcase can be achieved with the aid of a thrust washer according to the invention, that the thrust washer is aligned with its start-up area substantially parallel to the crankshaft cheek, so that a large-area contact with the crankshaft cheek is possible.
  • thrust washers also the same material can be used as in known from the prior art and previously used thrust washers, so that only geometric adjustments are required for the realization of the invention as part of a redesign in a simple to implement variant.
  • the starting region extends from a free end of the arc.
  • a free end of the arc By this is meant that - viewed in the circumferential direction of a
  • arcuate thrust washer having two free bottom ends - the starting region begins immediately or very close to the end of the sheet, with very close to the
  • the end of the sheet should in particular be enclosed in an angular range of up to 20 °, preferably of up to 10 ° or up to 5 °.
  • the thickness of the thrust washer thus increases in this case immediately beginning at the free end of the sheet or at least within the above-mentioned angle range in a measurable order of magnitude.
  • the starting area extends over a curved area of the thrust washer of at least 20 ° and / or over a height of at least 10 mm.
  • the starting region preferably extends over at least 30 ° and more preferably over at least 45 °. As angle ranges of a start-up area
  • ranges between 30 ° and 75 °, more preferably between 45 ° and 70 °, and particularly preferably between 50 ° and 60 ° (based on an inner contour of the base body) are suitable.
  • ranges between 30 ° and 75 °, more preferably between 45 ° and 70 °, and particularly preferably between 50 ° and 60 ° (based on an inner contour of the base body) are suitable.
  • the height of the starting region is preferably at least 12 mm, more preferably at least 15 mm.
  • ranges of values for the height of the starting region are preferred heights between 10 mm to 30 mm, more preferably between 15 mm and 25 mm and particularly preferably between 18 mm and 22 mm.
  • the thickness increases over a starting range by at least 50 ⁇ .
  • Value range for increasing the thickness in a (in particular linear trained) starting range are between 20 ⁇ and 300 ⁇ , more preferably between 50 ⁇ and 250 ⁇ .
  • As an angle for start-up areas are particularly suitable angles smaller than 2 °, in particular in an angular range between 0.1 ° and 1, 7 °.
  • At least one lubrication groove extending from an inner contour of the main body to an outer contour of the main body is formed on the main body on at least one functional surface, which extends over the
  • Thrust washer central axis i. the thrust washer center axis in this case passes through the lubrication groove.
  • the lubrication groove may be formed symmetrically with respect to the thrust washer center axis.
  • One or more start-up areas spaced apart from the lubrication groove can be formed over a larger arc area, in particular if the respective start-up area extends starting from a free end.
  • the formation of a lubricating groove has the advantage that lubricant, in particular oil, can be conveyed from an outer contour in the direction of the inner contour, so that the
  • Lubricant can get into the inner arc portion of a thrust washer to the crankshaft, in particular to the crankshaft bearing.
  • extending depth of the lubrication groove is preferably chosen between 50 ⁇ and 450 ⁇ , especially if the thickness of the thrust washer is between 2 mm and 3 mm,
  • the lubricating groove and the at least one starting region are formed on the same functional surface, in particular on one
  • Machining the thrust washer can in this case only on one (common)
  • the angular range over which the lubrication groove extends in a practical embodiment, is restricted to a range of at most 70 °, in particular over a maximum of 60 ° and more preferably over a maximum of 45 °.
  • the lubrication groove preferably further extends over a maximum length of at least 20 mm, preferably over a maximum of 16 mm, perpendicular to the thrust washer central axis. The smaller the lubricating groove is formed, the larger a starting region can be formed, in particular a starting region, which is spatially separated from the lubricating groove by a transition region of constant thickness and thus separated from the lubricating groove.
  • the base body is formed of steel and provided on at least one side, in particular on a directed to a crankshaft cheek functional surface, with a sliding layer of another material.
  • Steel is available as a material for a thrust washer according to the invention not only cost-effective, but also due to its high bending and torsional rigidity and its
  • a suitable sliding layer may for example be formed of aluminum and applied by plating on a base made of steel.
  • a starting region of a thrust washer can be produced in a particularly simple and cost-effective manner by embossing.
  • the lubricating groove can also be produced by embossing.
  • the lubrication groove and the starting region are sufficiently spaced apart from each other in order to avoid - especially when embossing a starting region according to already formed lubricating groove - that the lubricating groove destroys or geometrically impairs embossing of the starting region.
  • the starting area and / or the lubrication can be formed by milling or other machining. Although this requires a higher production cost, but this has the advantage that a minimum distance between the lubrication and start-up area does not necessarily have to be complied with. This may result in functional advantages in particular insofar as the starting area can extend over a larger area of the thrust washer.
  • any accumulations of material produced by a first embossing step can be smoothed, which may result in further functional advantages.
  • the second embossment is made over a 1 mm to 5 mm high area, in particular over a 1 mm to 3 mm high area, preferably over an approximately 1, 5 mm to 2.5 mm high area, each starting from the free arc ends ,
  • FIG. 1 shows an arrangement of a thrust washer according to the invention in the form of a half ring in a cylinder crankcase with a bearing cap and two crank webs in a schematic sectional view through a crankshaft axis
  • FIG. 2 shows a thrust washer according to the invention from FIG. 1 in a front view
  • Fig. 3 shows the thrust washer according to the invention of FIG. 2 in a sectional view along the line III-III in Fig. 2 and
  • Fig. 4 is an enlargement of the area marked IV in Fig. 3 with a
  • Fig. 1 is a schematic sectional view of an arrangement of two
  • crankshaft of which only two crankshaft cheeks 14 are shown.
  • crankshaft cheeks 14 are connected to each other via a bearing portion of the crankshaft, not shown.
  • the bearing section, not shown, is of the
  • each thrust washer 10 is each inserted in a recess 18 formed in the cylinder crankcase 12.
  • each thrust washer 10 has a first functional surface 20, which is directed to the cylinder crankcase 12 and a second functional surface 22, which is directed to the opposite crankshaft cheek 14.
  • Crankshaft cheeks 14 are aligned so that it between the start-up region 26 and the crankshaft cheeks 14 to a large-area contact and only small, local
  • start-up area 26 must be adapted to an expected or determined Lagerstuhlaufweitung.
  • the thrust washer 10 has a base body 28 which extends between a first free end of the sheet 30 and a second free end of the sheet 32.
  • the main body 28 is subdivided from a thrust washer center axis M into two arched virtual arc regions 34a, 34b extending over the same angle. In the present case, the arc regions 34a, 34b extend over 90 ° in each case.
  • the main body 28 has an outer contour Ka and an inner contour Ki, which each extend in a circular arc over almost 90 °.
  • a projection 36 is formed as anti-rotation for mounting. This ensures that the thrust washers 10 can only be inserted into the depressions 18 such that the first functional surface 20 is respectively directed towards the cylinder crankcase 12 and the second functional surface 22 is directed toward the crankshaft web 14 (see FIG. As
  • a start-up region 26 is formed with a continuously increasing thickness on the second functional surface 22.
  • the base body 28 of the thrust washer 10 is in the present case made of steel, wherein the second functional surface 22 of the main body 28 is provided with an additional sliding layer.
  • aluminum material was applied as a sliding layer by plating.
  • Fig. 2 the thrust washer 10 according to the invention is shown with a view of the second functional surface 22, on which both the start-up region 26 and a lubrication groove 38 are formed.
  • the starting areas 26 formed here over the same height H extend starting from the two free ends 30, 32 in the direction of the thrust washer center axis M over a range of 20 mm, or over an arc range ⁇ of 45 ° (measured to the inner contour Ki).
  • the thickness - starting from the free ends 30, 32 - in the direction of the thrust washer center axis M in the starting region 26 at an angle of ⁇ 0.15 ° on the Height H continuously rising.
  • the thickness D of the thrust washer 10 above the starting region 26 is 2.5 mm.
  • the lubrication groove 38 is present symmetrically about the thrust washer center axis M.
  • the lubrication groove 38 also extends over an arc range ß of 30 ° with respect to the inner contour Ki or over a width B of 16 mm.
  • the depth of the lubrication groove 38 is 200 ⁇ in the embodiment shown.
  • Embodiment produced by embossing Between the lubrication groove 38 and the
  • Starting region 26 extends a transition region 40, which has the full thickness D of the main body 28.
  • the transition region 40 is designed such that during the embossing process of the starting region 26, which previously formed by embossing
  • the broken line 42 indicates that it may be advantageous to have a portion of the part extending from the respective free end 30, 32 to the dashed line

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sliding-Contact Bearings (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
  • Sealing Devices (AREA)

Abstract

L'invention concerne une rondelle de butée en arc (10) pour le carter moteur (12) d'un moteur à combustion interne à pistons alternatifs, présentant une première extrémité libre d'arc (30) et une seconde extrémité libre d'arc (32) ainsi qu'un corps de base (28) s'étendant entre les extrémités libres d'arc (30, 32). Le corps de base (28) est divisé par un axe médian (M) de rondelle de butée en deux parties d'arc (34a, 34b) virtuelles en arc s'étendant sur le même angle, et l'épaisseur du corps de base (28) transversalement à la direction longitudinale de corps de base (28) augmente par paliers ou augmente en continu dans au moins une partie de butée (26) réalisée le long de l'étendue longitudinale en arc du corps de base (28) en direction de l'axe médian (M) de rondelle de butée.
PCT/EP2017/059463 2016-05-23 2017-04-21 Rondelle de butée en arc pour le carter moteur d'un moteur à combustion interne à pistons alternatifs Ceased WO2017202548A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201780032187.5A CN109154324A (zh) 2016-05-23 2017-04-21 用于往复活塞-内燃机的气缸曲轴箱的弧形的启动盘

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016208907.2A DE102016208907A1 (de) 2016-05-23 2016-05-23 Bogenförmige Anlaufscheibe für ein Zylinderkurbelgehäuse einer Hubkolben-Brennkraftmaschine
DE102016208907.2 2016-05-23

Publications (1)

Publication Number Publication Date
WO2017202548A1 true WO2017202548A1 (fr) 2017-11-30

Family

ID=58668854

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/059463 Ceased WO2017202548A1 (fr) 2016-05-23 2017-04-21 Rondelle de butée en arc pour le carter moteur d'un moteur à combustion interne à pistons alternatifs

Country Status (3)

Country Link
CN (1) CN109154324A (fr)
DE (1) DE102016208907A1 (fr)
WO (1) WO2017202548A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7604293B2 (ja) 2021-03-24 2024-12-23 大同メタル工業株式会社 内燃機関のクランク軸用の半割スラスト軸受および軸受装置
JP7604294B2 (ja) 2021-03-24 2024-12-23 大同メタル工業株式会社 内燃機関のクランク軸用の半割スラスト軸受および軸受装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2025020727A (ja) * 2023-07-31 2025-02-13 大同メタル工業株式会社 半割スラスト軸受

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008009856A1 (de) 2008-02-15 2009-08-27 Federal-Mogul Wiesbaden Gmbh Halbring einer Anlaufscheibe und ein Verfahren zur Herstellung derartiger Anlaufscheiben-Halbringe
JP2014126199A (ja) * 2012-12-27 2014-07-07 Taiho Kogyo Co Ltd 半割スラスト軸受
JP2014126096A (ja) * 2012-12-26 2014-07-07 Taiho Kogyo Co Ltd 半割スラスト軸受
EP2770189A1 (fr) * 2013-02-21 2014-08-27 Daido Metal Company Ltd. Demi palier de butée et dispositif de palier

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DE1957058A1 (de) * 1969-11-13 1971-05-19 Schmidt Gmbh Karl Verfahren und Vorrichtung zur Herstellung eines Laengslagers
GB1559567A (en) * 1977-07-07 1980-01-23 Caterpillar Tractor Co Bearing
DE2852690A1 (de) * 1978-12-06 1980-06-19 Glyco Metall Werke Axialgleitlager
US5192136A (en) * 1991-12-19 1993-03-09 Federal-Mogul Corporation Crankshaft bearing having hydrodynamic thrust flanges
WO2005003577A1 (fr) * 2003-07-05 2005-01-13 Man B & W Diesel Aktiengesellschaft Palier lisse axial
DE102013104129B3 (de) * 2013-04-24 2014-07-03 E. Winkemann Gmbh Anlaufscheibe mit Schmiermitteltaschen
GB2516294A (en) * 2013-07-18 2015-01-21 Mahle Engine Systems Uk Ltd Thrust washer
DE102014222514A1 (de) * 2014-07-10 2016-01-14 Bosch Mahle Turbo Systems Gmbh & Co. Kg Axiallager

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008009856A1 (de) 2008-02-15 2009-08-27 Federal-Mogul Wiesbaden Gmbh Halbring einer Anlaufscheibe und ein Verfahren zur Herstellung derartiger Anlaufscheiben-Halbringe
JP2014126096A (ja) * 2012-12-26 2014-07-07 Taiho Kogyo Co Ltd 半割スラスト軸受
JP2014126199A (ja) * 2012-12-27 2014-07-07 Taiho Kogyo Co Ltd 半割スラスト軸受
EP2770189A1 (fr) * 2013-02-21 2014-08-27 Daido Metal Company Ltd. Demi palier de butée et dispositif de palier

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7604293B2 (ja) 2021-03-24 2024-12-23 大同メタル工業株式会社 内燃機関のクランク軸用の半割スラスト軸受および軸受装置
JP7604294B2 (ja) 2021-03-24 2024-12-23 大同メタル工業株式会社 内燃機関のクランク軸用の半割スラスト軸受および軸受装置

Also Published As

Publication number Publication date
DE102016208907A1 (de) 2017-11-23
CN109154324A (zh) 2019-01-04

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