WO2021259414A1 - Palier lisse à contact oblique - Google Patents

Palier lisse à contact oblique Download PDF

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Publication number
WO2021259414A1
WO2021259414A1 PCT/DE2021/100475 DE2021100475W WO2021259414A1 WO 2021259414 A1 WO2021259414 A1 WO 2021259414A1 DE 2021100475 W DE2021100475 W DE 2021100475W WO 2021259414 A1 WO2021259414 A1 WO 2021259414A1
Authority
WO
WIPO (PCT)
Prior art keywords
bearing
angular contact
contact sliding
sliding bearing
rings
Prior art date
Application number
PCT/DE2021/100475
Other languages
German (de)
English (en)
Inventor
Dion TILBORG
Olaf Wilhelm
Dirk NIENHUESER
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 WO2021259414A1 publication Critical patent/WO2021259414A1/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
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/10—Sliding-contact bearings for exclusively rotary movement for both radial and axial load
    • 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
    • F16C33/12—Structural composition; Use of special materials or surface treatments, e.g. for rust-proofing
    • F16C33/121—Use of special materials
    • 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
    • F16C33/203—Multilayer structures, e.g. sleeves comprising a plastic lining
    • F16C33/205—Multilayer structures, e.g. sleeves comprising a plastic lining with two layers
    • 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
    • F16C33/72—Sealings
    • F16C33/74—Sealings of sliding-contact 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
    • F16C2204/00—Metallic materials; Alloys
    • F16C2204/60—Ferrous alloys, e.g. steel alloys
    • 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
    • F16C2204/00—Metallic materials; Alloys
    • F16C2204/60—Ferrous alloys, e.g. steel alloys
    • F16C2204/66—High carbon steel, i.e. carbon content above 0.8 wt%, e.g. through-hardenable steel
    • 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
    • F16C2208/00—Plastics; Synthetic resins, e.g. rubbers
    • F16C2208/20—Thermoplastic resins
    • F16C2208/30—Fluoropolymers
    • F16C2208/32—Polytetrafluorethylene [PTFE]
    • 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
    • F16C2310/00—Agricultural machines

Definitions

  • the invention relates to an angular contact sliding bearing designed to absorb radial and axial forces according to the preamble of claim 1.
  • Such an angular contact sliding bearing is known, for example, from DE 10 2006 013275 B4. This is a slide bearing intended for use in watercraft.
  • an angular contact sliding bearing is combined with a radial sliding bearing, the radial sliding bearing being a bearing with a larger bearing clearance.
  • the radial plain bearing should act as a thrust bearing and be completely relieved in the course of operation by the angular contact bearing.
  • An angular contact sliding bearing intended for use in a wind power plant is disclosed, for example, in AT 513516 B1.
  • a conical Gleitla gerbuchse is arranged between an axis and a gear.
  • the gear wheel and the plain bearing bush are connected to one another by a conical press fit.
  • Multi-row bearing arrangements designed as angular contact sliding bearings, which can be loaded in the radial direction and in both axial directions, are known, for example, from the documents DE 102017 222 901 A1, DE 10 2017 223 370 A1, WO 2018/071941 A1 and WO 2017/162679 A1.
  • the invention is based on the object of providing a further developed, radially and at least one-sided axially loadable angular contact sliding bearing, which is characterized by a particularly favorable relationship between the manufacturing effort and resilience and is particularly suitable for applications in which the to each other mounted parts only execute swivel movements with small swivel angles.
  • This object is achieved according to the invention by an angular contact sliding bearing with the features of claim 1.
  • the angular contact sliding bearing has several bearing rings, namely at least one inner ring and at least one outer ring, each bearing ring having a conical sliding surface via which radial and axial forces can be carried . At least one of the bearing rings is made from a rolling bearing steel.
  • Rolling bearing steels are standardized in the DIN EN ISO 683-17: 2014 standard and, as their name suggests, are intended for use in rolling bearings.
  • roller bearing steels the steels, alloyed steels and automatic steels intended for heat treatment are included.
  • through-hardening roller bearing steels case-hardening roller bearing steels, unalloyed or alloyed induction-hardening roller bearing steels, rustproof roller bearing steels and hot-hard roller bearing steels.
  • roller bearing steels For the production of a bearing ring or several bearing rings of the angular contact sliding bearing, in particular all bearing rings of the angular contact sliding bearing, the following roller bearing steels can be considered:
  • Induction hardening rolling bearing steels C56E2, 56Mn4, 70Mn4, 43CrMo4
  • Rolling bearing steels that are suitable for the production of bearing rings for angular contact bearings are steels M50 (material number 1.3551) and M50NiL (material number 1.3590) and X30CrMoN15-1 (material number 1.4108).
  • a single bearing ring of the angular contact sliding bearing or a plurality of bearing rings, in particular the entirety of the bearing rings forming the angular contact sliding bearing, can be hard chrome-plated.
  • a solid shaft which has at least one conical sliding surface, can also be provided instead of an inner bearing ring of the angular contact sliding bearing.
  • At least one bearing ring can be provided with a sliding coating.
  • a sliding coating comprises a fabric made of PTFE (polytetrafluoroethylene) which is embedded in a resin matrix.
  • PTFE polytetrafluoroethylene
  • the angular contact sliding bearing can be designed as a maintenance-free sliding bearing.
  • the angular contact sliding bearing can either be a bearing that has to be lubricated repeatedly over the course of its operating life or a maintenance-free bearing.
  • a lifetime lubrication is possible in a basically known manner, for example with the aid of a solid lubricant which is applied in the course of the manufacture of the angular contact sliding bearing.
  • the angular contact sliding bearing comprises at least one seal effective between two bearing rings.
  • a seal is provided in particular in cases in which there is a steel-steel contact as the sliding contact of the angular contact sliding bearing.
  • the angular contact sliding bearing can be sealed either on a single axial side or on both axial sides.
  • the contact angle of the angular contact sliding bearing is at least 18 ° and at most 33 °, for example at least 24 ° and at most 27 °, in particular 25 °.
  • the angular contact sliding bearing is therefore mainly designed to absorb radial loads.
  • the angular contact sliding bearing is designed as a bearing that is effective in both axial directions. This can either be a multi-row bearing in an X-arrangement or a multi-row bearing in an O-arrangement.
  • the angular contact sliding bearing is intended for use in a Landma machine, for example.
  • 1 shows a first embodiment of an angular contact sliding bearing
  • 2 and 3 different embodiments of double-row angular contact sliding bearings
  • An angular contact sliding bearing identified as a whole by the reference number 1, comprises at least one inner ring 2 and at least one outer ring 3 as bearing rings 2, 3.
  • the bearing rings 2, 3 form conical sliding surfaces 7, 8.
  • the oblique sliding bearing 1 is thus designed to absorb radial loads and axial loads, at least in one axial direction.
  • the designated pressure angle of the angular contact sliding bearing 1 is 25 ° in the exemplary embodiments.
  • the pressure angle is to be measured according to the usual definition between a pressure line DL and a radial plane RE.
  • the center axis, labeled MA, of the angular contact sliding bearing 1 represents a surface normal to the radial plane RE.
  • the inner ring 2 has an inner diameter d2 and an outer diameter D2, the outer ring 3 an inner diameter d3 and an outer diameter D3.
  • the width of the bearing rings 2, 3 is given with B2, B3.
  • the bearing width indicated by BL of the entire angular contact sliding bearing 1 corresponds to the width B2 of the inner ring 2.
  • the bearing width BL is more than twice the inner ring width B2.
  • all bearing rings 2, 3, apart from any coatings or coverings which will be discussed below, are made of hardened roller bearing steel.
  • the angular contact plain bearings 1 can absorb significantly higher forces.
  • the angular contact sliding bearing 1 can replace an angular contact ball bearing or a cone roller bearing.
  • the angular contact sliding bearing 1 is suitable in all of the illustrated variants antennas also for applications in which only slight pivoting movements between tween the bearing rings 2, 3 occur.
  • either the inner ring 2 or the outer ring 3 can be the rotating bearing ring 2, 3. Rotation of the two bearing rings 2, 3 is also possible in principle.
  • the sliding surface 7 of the inner ring 2 is hard chrome-plated in all exemplary embodiments. As far as hard chrome plating in bearing arrangements is concerned, reference is made to DE 10 2008 029 449 A1 as an example of the prior art.
  • the sliding coating 4 that can be seen in FIG. 1 has a PTFE fabric which is embedded in a resin matrix. Such sliding linings are marketed by the applicant under the name ELGOGLIDE.
  • the thickness of the sliding coating 4 glued onto the outer ring 3 is approximately 0.5 mm. Due to the conical shape of the sliding surface 7 of the inner ring 2 and the sliding surface 8 of the outer ring 3 formed by the sliding coating 4, the angular contact sliding bearing 1 is intended exclusively for operation without tilting between the bearing rings 2, 3.
  • the angular contact sliding bearing 1 according to FIG. 2 can be axially loaded on both sides.
  • the angular contact sliding bearing 1 represents a multi-row bearing in an O arrangement.
  • the two bearing ring rows of the angular contact sliding bearing 1 according to FIG. 2, formed by a total of four bearing rings 2, 3, are denoted by 5, 6.
  • the pressure lines DL of the two rows of bearing rings 5, 6 intersect the central axis MA, as can be seen from FIG.
  • a spacer ring (not shown) can be arranged between the two outer rings 3.
  • a one-piece connection of the two outer rings 3 is possible.
  • the outer rings 3 can be part of a housing.
  • the angular contact sliding bearing 1 according to FIG. 3 differs from the exemplary embodiment according to FIG. 2 in that, instead of an O-arrangement, there is an X-arrangement.
  • the point of intersection between the pressure lines DL and the central axis MA lies between the two rows of bearing rings 5, 6.
  • axial forces can also be absorbed in both directions in the exemplary embodiment according to FIG.
  • both the angular contact sliding bearing 1 according to FIG. 2 and the angular contact sliding bearing 1 according to FIG. 3 are able to absorb tilting loads.
  • the two inner rings 2 can be connected to one another in one piece or formed directly by a shaft.
  • the angular contact sliding bearing 1 according to FIG. 4 differs from the exemplary embodiments according to FIGS. 1 to 3 in that no non-metallic sliding coating 4 is provided, but rather both sliding surfaces 7, 8 are formed by metallic surfaces to be lubricated. Both sliding surfaces 7, 8 are hard chrome-plated. Seals 9, 10, which are inserted into recesses in the outer ring 3, are provided for sealing. Like the exemplary embodiment according to FIG. 1, the angular contact sliding bearing 1 according to FIG. 4 is also designed to absorb axial loads on one side. In a manner not shown, the angular contact sliding bearing 1 according to FIG. 4 can be combined with a further, similar angular contact sliding bearing 1, so that a multi-row bearing arrangement, as sketched in FIGS. 2 and 3, results. The same applies to the angular contact sliding bearing 1 according to FIG. 1. In all cases, there is an extremely favorable ratio between the outer dimensions, that is, the bearing width BL and the bearing outer diameter Ü3, and the radial and axial forces that can be absorbed.

Abstract

L'invention concerne un palier lisse à contact oblique, comprenant une bague intérieure (2) et une bague extérieure (3) en tant que bagues de roulement (2, 3), présentant chacune une surface de glissement conique (7, 8). Au moins l'une des bagues de roulement (2, 3) est fabriquée à partir d'un acier pour roulements.
PCT/DE2021/100475 2020-06-24 2021-06-02 Palier lisse à contact oblique WO2021259414A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020116588.9A DE102020116588A1 (de) 2020-06-24 2020-06-24 Schräggleitlager
DE102020116588.9 2020-06-24

Publications (1)

Publication Number Publication Date
WO2021259414A1 true WO2021259414A1 (fr) 2021-12-30

Family

ID=76623816

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Application Number Title Priority Date Filing Date
PCT/DE2021/100475 WO2021259414A1 (fr) 2020-06-24 2021-06-02 Palier lisse à contact oblique

Country Status (2)

Country Link
DE (1) DE102020116588A1 (fr)
WO (1) WO2021259414A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4212746A1 (fr) * 2022-01-13 2023-07-19 Artisan Vehicle Systems Inc. Agencement de palier d'oscillation de machine d'exploitation minière mobile et machine d'exploitation minière mobile

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3359047A (en) * 1965-05-28 1967-12-19 Bell Telephone Labor Inc Bearing structure
WO1998046894A1 (fr) * 1997-04-17 1998-10-22 The Timken Company Roulement a air rotatif et son procede de fabrication
DE102006013275B4 (de) 2006-03-21 2008-07-03 Air Fertigung-Technologie Gmbh Lagersystem für Ringpropeller
DE102008029449A1 (de) 2008-06-20 2009-12-24 Ab Skf Gelenklager und Lagerung
DE102008056397A1 (de) * 2008-11-07 2010-05-20 Ab Skf Lageranordnung
DE102010023647A1 (de) * 2010-06-14 2011-12-15 Aktiebolaget Skf Gleitlagerbauteil, Gleitlager und Verfahren zur Herstellung eines Gleitlagerbauteils
AT513516B1 (de) 2013-01-30 2014-05-15 Miba Gleitlager Gmbh Windkraftanlagengetriebe
DE102013223679A1 (de) 2013-11-20 2015-05-21 Schaeffler Technologies AG & Co. KG Verfahren zur Herstellung eines Gleitbelags
EP2921728A1 (fr) * 2014-03-20 2015-09-23 Areva Wind GmbH Palier d'arbre hybride avec un palier hydrodynamique et un roulement, générateur d'éolienne comprenant un palier d'arbre hybride, utilisation du palier d'arbre hybride et procédé de mise en oeuvre du palier d'arbre hybride
WO2017162679A1 (fr) 2016-03-22 2017-09-28 Siemens Aktiengesellschaft Agencement de palier
WO2018071941A1 (fr) 2016-10-21 2018-04-26 Miba Gleitlager Austria Gmbh Élément de palier
DE102017222901A1 (de) 2017-12-15 2019-06-19 Zf Friedrichshafen Ag Planetengetriebestufe mit einer Gleitlageranordnung, insbesondere für eine Planetenradlagerung in einem Windkraftgetriebe
DE102017223370A1 (de) 2017-12-20 2019-06-27 Zf Friedrichshafen Ag Einstellbares Gleitlager

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3359047A (en) * 1965-05-28 1967-12-19 Bell Telephone Labor Inc Bearing structure
WO1998046894A1 (fr) * 1997-04-17 1998-10-22 The Timken Company Roulement a air rotatif et son procede de fabrication
DE102006013275B4 (de) 2006-03-21 2008-07-03 Air Fertigung-Technologie Gmbh Lagersystem für Ringpropeller
DE102008029449A1 (de) 2008-06-20 2009-12-24 Ab Skf Gelenklager und Lagerung
DE102008056397A1 (de) * 2008-11-07 2010-05-20 Ab Skf Lageranordnung
DE102010023647A1 (de) * 2010-06-14 2011-12-15 Aktiebolaget Skf Gleitlagerbauteil, Gleitlager und Verfahren zur Herstellung eines Gleitlagerbauteils
AT513516B1 (de) 2013-01-30 2014-05-15 Miba Gleitlager Gmbh Windkraftanlagengetriebe
DE102013223679A1 (de) 2013-11-20 2015-05-21 Schaeffler Technologies AG & Co. KG Verfahren zur Herstellung eines Gleitbelags
EP2921728A1 (fr) * 2014-03-20 2015-09-23 Areva Wind GmbH Palier d'arbre hybride avec un palier hydrodynamique et un roulement, générateur d'éolienne comprenant un palier d'arbre hybride, utilisation du palier d'arbre hybride et procédé de mise en oeuvre du palier d'arbre hybride
WO2017162679A1 (fr) 2016-03-22 2017-09-28 Siemens Aktiengesellschaft Agencement de palier
WO2018071941A1 (fr) 2016-10-21 2018-04-26 Miba Gleitlager Austria Gmbh Élément de palier
DE102017222901A1 (de) 2017-12-15 2019-06-19 Zf Friedrichshafen Ag Planetengetriebestufe mit einer Gleitlageranordnung, insbesondere für eine Planetenradlagerung in einem Windkraftgetriebe
DE102017223370A1 (de) 2017-12-20 2019-06-27 Zf Friedrichshafen Ag Einstellbares Gleitlager

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