WO2012116902A1 - Élément, en particulier pour un palier à roulement ou un palier lisse - Google Patents

Élément, en particulier pour un palier à roulement ou un palier lisse Download PDF

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Publication number
WO2012116902A1
WO2012116902A1 PCT/EP2012/052823 EP2012052823W WO2012116902A1 WO 2012116902 A1 WO2012116902 A1 WO 2012116902A1 EP 2012052823 W EP2012052823 W EP 2012052823W WO 2012116902 A1 WO2012116902 A1 WO 2012116902A1
Authority
WO
WIPO (PCT)
Prior art keywords
component
cylindrical surface
bearing
base body
shrink tube
Prior art date
Application number
PCT/EP2012/052823
Other languages
German (de)
English (en)
Inventor
Wolfgang Braun
Sergej Schwarz
Kerem KÖKSAL
Tim Matthias Hosenfeldt
Gudrun Martin
Jürgen WINDRICH
Daniel PÖPPERL
Helmut Schillinger
Rainer Pflug
Original Assignee
Schaeffler Technologies AG & Co. KG
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 Schaeffler Technologies AG & Co. KG filed Critical Schaeffler Technologies AG & Co. KG
Publication of WO2012116902A1 publication Critical patent/WO2012116902A1/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
    • 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
    • F16C33/20—Sliding surface consisting mainly of plastics
    • F16C33/201—Composition of the plastic
    • 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
    • F16C33/20—Sliding surface consisting mainly of plastics
    • F16C33/208—Methods of manufacture, e.g. shaping, applying coatings
    • 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
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/34—Rollers; Needles
    • 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
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/62—Selection of substances
    • 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
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/64—Special methods of manufacture

Definitions

  • the invention relates to a component, in particular for a rolling or sliding bearing, comprising a metallic base body having at least one cylindrical surface.
  • a component having a cylindrical surface that frictionally contacts another surface is subject to wear. Wear occurs, for example, when a cylindrical pin is guided in a bore and / or rotated or when several components with cylindrical surfaces perform a sliding or rolling movement. Under extreme conditions of use such as elevated temperature and / or lack of lubrication special demands are placed on the components of the frictional contact.
  • one of the two friction partners can be provided with a wear-resistant surface so as not to damage the other friction partner.
  • the soft brass forms a weary friction partner.
  • the metallic base body with a cylindrical surface may have a coating.
  • a variety of different wear-resistant coating materials is known.
  • Bonding coatings and coatings made of PEEK polyether ether ketone
  • a provided with a lubricating bearing is known from DE 101 18 365 A1.
  • DE 20 2008 006 915 IM a bearing with a sliding material is described, which may consist inter alia of PEEK.
  • both the brass sleeves mentioned and the coatings also have disadvantages.
  • Brass bushes are relatively massive and increase the overall mass considerably.
  • the component In order to press the brass bushing, the component must meet increased requirements for the tolerances.
  • Coatings with a bonded coating are comparatively thin, a layer thickness of about 25 ⁇ m is generally not exceeded. In places with increased wear and high surface pressures, the layer is therefore quickly worn out.
  • the invention is therefore based on the object to provide a component for a rolling or sliding bearing, which has good wear properties and ensures electrical insulation.
  • a thermoplastic shrink tube is shrunk onto the cylindrical surface.
  • the invention is based on the finding that a shrink tube can form a sliding layer in a cylindrical sliding pair, which is characterized by good wear properties and high temperature resistance.
  • the shrink tube ensures electrical insulation.
  • the component according to the invention thus comprises the metallic base body with at least one cylindrical surface, onto which a thermoplastic heat-shrinkable tube is firmly shrunk by means of heat treatment, which at least partially covers the cylindrical surface.
  • the shrinking tube may comprise one of the following materials or a mixture thereof: polyetheretherketone (PEEK), polytetrafluoroethylene (PTFE), polymethyl methacrylate (PMMA), polyvinyl chloride (PVC), polyvinylidene fluoride (PVDF), polyolefin.
  • PEEK polyetheretherketone
  • PTFE polytetrafluoroethylene
  • PMMA polymethyl methacrylate
  • PVC polyvinyl chloride
  • PVDF polyvinylidene fluoride
  • polyolefin polyolefin
  • the thermoplastic shrink tube is shrunk.
  • the application of the shrink tube is comparatively fast compared to other coating methods that require complex or multi-step process steps.
  • the metallic base body is hardened and / or case-hardened and / or carbonitrided and tempered. Accordingly, various curing methods are available to provide a metallic body having a desired hardness. The hardening takes place before the cylindrical shrink tube is shrunk.
  • the metallic base body can have an adhesion-promoting layer, in particular a phosphate layer and / or a silane layer and / or a passivating layer produced by a hexafluoro derivative.
  • an adhesion-promoting layer in particular a phosphate layer and / or a silane layer and / or a passivating layer produced by a hexafluoro derivative.
  • the shrunk-on shrink tubing has a thickness of 50 ⁇ m to 500 ⁇ m, in particular the thickness can be approximately 100 ⁇ m.
  • the invention relates to a bearing assembly having at least two relatively movable to each other movable, forming a friction pair components, of which at least one component has a metallic base body with at least one cylindrical surface.
  • the bearing assembly according to the invention is characterized in that on the cylindrical surface of a thermoplastic shrink tube is shrunk.
  • the invention relates to a method for producing a component with a metallic base body having at least one cylindrical surface, in particular for a rolling or sliding bearing.
  • the inventive method is characterized in that on the cylindrical surface, a thermoplastic shrink tube is shrunk.
  • the shrink tube is shrunk by means of hot air or induction heat.
  • FIG. 1 shows a metallic base body and a shrink tube before shrinking
  • Fig. 2 shows an inventive component after shrinking the
  • FIG. 3 shows a perspective view of the component according to the invention shown in FIG. 2;
  • Fig. 4 shows another embodiment of a component according to the invention.
  • Fig. 1 shows a sectional view of a metallic base body 1, which is formed as a shaft and has a cylindrical surface 2.
  • the main body 1 is surrounded by a shrink tube 3, the thickness of
  • the thickness of the shrink tube is 3 z. B. 100 ⁇ , it is thus a film that is extremely thin compared to the base body 1.
  • Fig. 1 shows the shrink tube 3 in the initial state, that is, in the non-shrunken state.
  • the shrink tube 3 is made of a thermoplastic, in the illustrated embodiment, this is PEEK (polyetheretherketone).
  • FIG. 2 shows the component 4 consisting of the main body 1 and the shrinking tube 3 after the shrinking tube 3 has been shrunk.
  • the shrinking tube 3 shrinks until it lies completely against the base body 1 and surrounds it .
  • a continuous layer is thus formed, which has good wear properties and additionally lends an electrical insulation.
  • the shrink tube 3 extends only over part of the length of the main body 1.
  • the heat-shrinkable tube completely envelops the cylindrical surface.
  • the heat-shrinkable tube 3 forms a sliding layer with good wear properties with a high temperature resistance.
  • the wall thickness of the shrink tube 3 can be selected depending on the intended use between 50 pm and 500 ⁇ , a thickness of about 100 ⁇ is preferred.
  • the attachment of the shrink tube 3 is comparatively simple, by using a shrink tube whose inner diameter is greater than the initial diameter of the body. Accordingly, the shrink tube can be easily applied to the body and then shrunk by supplying heat, so that a firm connection is formed. Compared to a bonded coating is the through The heat shrink layer formed layer thicker and thus much more wear resistant.
  • the component 4 together with at least one further component, forms a bearing arrangement, wherein the components which are movable relative to one another form a friction pairing.
  • the component 4 shown in Figures 1 to 3 can be used for example in rolling rods for woodworking machines. These rolling rods are guided and stored by means of a cylindrical bolt.
  • a component 5 for a bearing arrangement in a sectional view comprising a main body 6 with a cylindrical surface 7, the main body 6 is provided on its outer side with a heat-shrinkable tube 8.
  • the shrink tube 8 forms a layer with good tribological properties, which simultaneously ensures electrical insulation.
  • the base body 6 can be made of a cost-effective steel material such as 16MnCr5, C45, 100Cr6, 31 CrMoV9 or 80Cr2.
  • the metallic main body 6 consists of the material 100Cr6, which is case hardened before the application of the shrink tube 8.
  • the metallic base body may also be carbonitrided and tempered.
  • a phosphate layer ZnPh, FePh
  • a silane layer may be used as the primer layer.
  • a passivation by means of a Haxafluo- ro derivative (Zr, Ti, Si or mixtures thereof) may be applied.
  • the heat-shrinkable tube 8 which serves as cover layer and functional layer, can be applied directly or with the mentioned substructure to the base body 6.
  • the shrink tube may contain no metallic components. Accordingly, the shrink tubing may be made of PEEK, PTFE, PMMA, PVC, PVDF, an olefin, or a mixture thereof.
  • the counter-body or the friction partner is also protected on account of the outstanding tribological layer properties.
  • a heat-shrinkable tubing as a coating, it is possible to use a cost-effective material as base material (16MnCr5, C45, 100Cr6, 3CrMoV9, 80Cr2) for the metallic base body.
  • Costly ceramic rolling elements can be replaced by the coating.
  • the coated components for a bearing assembly such as a sliding or roller bearing have better mechanical properties, since the layer formed by the shrink tubing takes over the tribological and current insulating properties and the tough round steel body carries the mechanical loads.
  • the illustrated and described embodiments can be modified by varying the layer thickness and the number of separation layers. For example, only rolling elements may be coated or an inner ring or an outer ring may additionally be coated.
  • component for a bearing assembly such as a rolling or sliding bearing can also for other functional units such as support and plug-in elements, rolling bearing components, release bearing (sleeve), piston pin, plain bearing pins, bushings, control piston, linear guides, universal joints and for other mechatronic systems and parts are used.
  • the component 5 shown in FIG. 4 is a universal joint bush, which on the one hand has to be electrically insulated and, on the other hand, has to run with low noise. Both can be achieved with the coating by the shrink tube 8.
  • the component 5 shown in Fig. 4 of the metallic base body 6 is cleaned with alcohol, alternatively, this can be done with C0 2 .
  • a primer is applied in the form of a phosphating or by a silane layer.
  • the heat shrink tubing used is coated on the inside with a hot melt adhesive.
  • the shrink tube 8 is cut to size and brought to the desired position of the base body 6, at which a sliding and insulating surface is to arise.
  • the main body 6 is heated by induction, by a heating furnace or a burner to the temperature at which the shrinkage of the shrink tube 8 enters.
  • the finished component 5 is cooled to about 40 ° C, so that further assembly work can be carried out. Manufacturing-technical savings can be achieved if the shrinkage or melting temperature of the shrink tube is selected so that it corresponds to the tempering temperature of the hardened metallic base body 6. In this case, the renewed heating of the main body 6 is omitted, instead, the shrinking can be done directly after starting.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Sliding-Contact Bearings (AREA)
  • Laminated Bodies (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

L'invention concerne un élément, en particulier pour un palier à roulement ou un palier lisse, comprenant un corps de base métallique comportant au moins une surface cylindrique, un tuyau rétractable thermoplastique étant rétracté sur la surface cylindrique.
PCT/EP2012/052823 2011-02-28 2012-02-20 Élément, en particulier pour un palier à roulement ou un palier lisse WO2012116902A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201110004803 DE102011004803A1 (de) 2011-02-28 2011-02-28 Bauteil, insbesondere für ein Wälz- oder Gleitlager
DE102011004803.0 2011-02-28

Publications (1)

Publication Number Publication Date
WO2012116902A1 true WO2012116902A1 (fr) 2012-09-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/052823 WO2012116902A1 (fr) 2011-02-28 2012-02-20 Élément, en particulier pour un palier à roulement ou un palier lisse

Country Status (2)

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DE (1) DE102011004803A1 (fr)
WO (1) WO2012116902A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014218630A1 (de) 2014-09-17 2016-03-17 Ford Global Technologies, Llc Verfahren zur Herstellung einer Nockenwelle sowie Nockenwelle

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITRN20130020A1 (it) * 2013-05-31 2014-12-01 C & C Group S R L Piattaforma sottile per l'avvolgimento di pallet
DE102016203654A1 (de) 2016-03-07 2017-09-07 Mahle International Gmbh Verfahren zur Herstellung einer Lagerbaugruppe
DE102016124734A1 (de) 2016-12-19 2018-06-21 Schaeffler Technologies AG & Co. KG Bauteil, insbesondere Wälzkörper
DE102021104999A1 (de) 2021-03-02 2022-09-08 Ebm-Papst Landshut Gmbh Gleiteigenschaft und Zentrierung

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2316746A1 (de) * 1973-04-04 1974-10-17 Fenaro Ferch & Co Kg Elastische walze zur druckbehandlung von warenbahnen, insbesondere von papierbahnen
DE3832999A1 (de) * 1988-09-29 1990-04-05 Herbert Rottmann Rotationssymmetrische walze, insbesondere fuer maschinen der foerdertechnik
JPH03163220A (ja) * 1989-11-20 1991-07-15 Sumitomo Electric Ind Ltd 圧入用すべり軸受け
DE10118365A1 (de) 2001-04-12 2002-10-17 Ina Schaeffler Kg Ausrücklager
DE10232148A1 (de) * 2002-07-16 2004-02-05 Corovin Gmbh Vorrichtung und Verfahren zum flüssigkeitsdurchlässigen Perforieren eines Vlieses
DE202008006915U1 (de) 2007-04-04 2008-09-04 Saint-Gobain Performance Plastics Pampus Gmbh Gelenklager
DE102008002945B3 (de) * 2008-07-15 2009-11-19 Kumatec Sondermaschinenbau & Kunststoffverarbeitung Gmbh Schrumpfschlauch
DE102009001156A1 (de) * 2009-02-25 2010-08-26 Voith Patent Gmbh Walze

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2316746A1 (de) * 1973-04-04 1974-10-17 Fenaro Ferch & Co Kg Elastische walze zur druckbehandlung von warenbahnen, insbesondere von papierbahnen
DE3832999A1 (de) * 1988-09-29 1990-04-05 Herbert Rottmann Rotationssymmetrische walze, insbesondere fuer maschinen der foerdertechnik
JPH03163220A (ja) * 1989-11-20 1991-07-15 Sumitomo Electric Ind Ltd 圧入用すべり軸受け
DE10118365A1 (de) 2001-04-12 2002-10-17 Ina Schaeffler Kg Ausrücklager
DE10232148A1 (de) * 2002-07-16 2004-02-05 Corovin Gmbh Vorrichtung und Verfahren zum flüssigkeitsdurchlässigen Perforieren eines Vlieses
DE202008006915U1 (de) 2007-04-04 2008-09-04 Saint-Gobain Performance Plastics Pampus Gmbh Gelenklager
DE102008002945B3 (de) * 2008-07-15 2009-11-19 Kumatec Sondermaschinenbau & Kunststoffverarbeitung Gmbh Schrumpfschlauch
DE102009001156A1 (de) * 2009-02-25 2010-08-26 Voith Patent Gmbh Walze

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014218630A1 (de) 2014-09-17 2016-03-17 Ford Global Technologies, Llc Verfahren zur Herstellung einer Nockenwelle sowie Nockenwelle

Also Published As

Publication number Publication date
DE102011004803A1 (de) 2012-08-30

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