EP3850234A1 - Procédé de fabrication de cages de palier à roulement, en particulier de grandes cages de palier à roulement et cages de palier à roulement - Google Patents

Procédé de fabrication de cages de palier à roulement, en particulier de grandes cages de palier à roulement et cages de palier à roulement

Info

Publication number
EP3850234A1
EP3850234A1 EP19765994.9A EP19765994A EP3850234A1 EP 3850234 A1 EP3850234 A1 EP 3850234A1 EP 19765994 A EP19765994 A EP 19765994A EP 3850234 A1 EP3850234 A1 EP 3850234A1
Authority
EP
European Patent Office
Prior art keywords
sliding surface
base body
surface area
roller bearing
welding
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Withdrawn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
EP19765994.9A
Other languages
German (de)
English (en)
Inventor
Jens RAPPOLD
Bernd Stakemeier
Ludger Sauer
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.)
ThyssenKrupp AG
ThyssenKrupp Rothe Erde Germany GmbH
Original Assignee
ThyssenKrupp AG
ThyssenKrupp Rothe Erde Germany GmbH
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 ThyssenKrupp AG, ThyssenKrupp Rothe Erde Germany GmbH filed Critical ThyssenKrupp AG
Publication of EP3850234A1 publication Critical patent/EP3850234A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/34—Laser welding for purposes other than joining
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/04—Welding for other purposes than joining, e.g. built-up welding
    • 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
    • F16C33/46—Cages for rollers or needles
    • F16C33/4605—Details of interaction of cage and race, e.g. retention or centring
    • 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
    • F16C2223/00—Surface treatments; Hardening; Coating
    • F16C2223/30—Coating surfaces
    • F16C2223/46—Coating surfaces by welding, e.g. by using a laser to build a layer
    • 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
    • F16C2300/00—Application independent of particular apparatuses
    • F16C2300/10—Application independent of particular apparatuses related to size
    • F16C2300/14—Large applications, e.g. bearings having an inner diameter exceeding 500 mm
    • 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
    • F16C2360/31—Wind motors

Definitions

  • the present invention is based on a rolling bearing cage with sliding surfaces on contact surfaces to bearing rings.
  • the sliding surfaces serve to reduce wear on friction surfaces between a closed or segmented roller bearing cage and its contact surfaces on the other bearing rings.
  • the roller bearing cage has the task of guiding and separating rolling elements of the roller bearing. For this purpose, the rolling bearing cage guides the rolling elements in a positive alignment. Likewise, the roller bearing cage is guided through the bearing rings. A relative movement occurs between the roller bearing cage and the bearing rings during the rotation of the bearing.
  • the rolling bearing cage comes into contact with the inner bearing ring, the outer bearing ring or also partly with the inner bearing ring and partly with the outer bearing ring, depending on the load situation.
  • the fact that the rolling elements are guided by the rolling element cage means that the rolling elements press the rolling element cage against the inner and / or the outer bearing ring.
  • the frictional forces that arise due to the relative movement can lead to loads and increased wear both on the cage and on the bearing rings. Wear can be reduced and loads can be reduced by selecting suitable friction partners on the contact surfaces.
  • the publication DE 10 2015 101 464 A1 discloses a roller bearing cage for roller bearings, which consists of a base body made of steel and bronze bearing metal slides applied to the base body, which serve to reduce the friction between the bearing rings and the roller bearing cage.
  • the bronze bearing metal sliders are welded to the base body of the roller bearing cage.
  • Bearing metal sliders made of various other materials are also known from the prior art.
  • the bearing metal sliders reduce due to their geometric Characteristics and the favorable effect of the material pairing between the bearing metal sliding piece and the bearing ring on the sliding behavior, the frictional forces on all constructively considered contact surfaces of the rolling bearing cage with the bearing rings.
  • the bearing metal sliding pieces are welded on manually and are therefore time, cost and test intensive with low process reliability. Furthermore, the shape of the sliding surfaces is severely restricted by the use of bearing metal sliding pieces.
  • This object is achieved by a method for the manufacture of roller bearing cages for roller bearings, in particular for the manufacture of large roller bearing cages for large roller bearings, a base body being produced in a first step and the base body being provided with at least one sliding surface in a second step, characterized in that the at least a sliding surface is produced by welding a filler metal onto the base body.
  • the at least one sliding surface is produced here by a volume build-up by welding.
  • the volume build-up takes place with the filler metal, which is applied as a layer during welding and bonded to the base body.
  • the method according to the invention has the advantage over the prior art that it can be fully automated.
  • the at least one sliding surface can be produced significantly more quickly and cost-effectively.
  • the method and the method increase the precision and repeatability. This also reduces the risk of failure and errors, since, in contrast to the prior art, no connection welding There are seams between the large roller bearing cage on the one hand and bearing metal sliding pieces to be welded on, on the other hand, which are suitable for weakening the overall construction.
  • the shape of the at least one sliding surface has few limits, and the increased precision and freedom of shape mean that the cost of materials can be significantly reduced.
  • Wear can be reduced by selecting suitable materials for cladding. It is conceivable to weld on the at least one sliding surface made of bronze.
  • the sliding surface is welded onto the surface essentially in a punctiform manner.
  • the sliding surface is welded on in a circular, rectangular, square or oval manner.
  • a material composition composed of different materials is used as the filler material in the case of cladding. It is thus possible to manufacture the at least one sliding surface from a suitable material composition to reduce the frictional forces and thus to reduce wear. It is conceivable to provide the filler metal as a powder for volume build-up. However, it is also conceivable to provide the filler metal as a rod, ingot or in any other solid form for volume build-up. It is also conceivable to provide a combination of different materials and / or material mixtures as a powder and / or as a rod, ingot or in any other solid form as a filler metal for volume buildup.
  • the at least one sliding surface is produced in a plurality of different layers, wherein different welding filler materials are preferably used for the different layers.
  • different welding filler materials are preferably used for the different layers.
  • This makes it possible to produce layers with different properties, for example adhesion, welding properties or lubricity.
  • This could advantageously be a layer with good sliding properties but poor connectivity with the material of the large roller bearing cage as an upper sliding layer on one another layer as the lower adhesive layer, which has good connectivity with the material of the slewing bearing cage and the material of the upper sliding layer, are applied.
  • the at least one sliding surface is produced at a first location on the base body from a first sliding surface region and at a second location on the base body from a second sliding surface region, the first sliding surface region in shape and / or volume is produced adapted to the expected first loads of the first sliding surface area and the second sliding surface area is produced in the form and / or volume adapted to the expected second loads of the second sliding surface area.
  • This advantageously makes it possible to adapt the at least one sliding surface exactly to the loads to be expected.
  • These can be adjustments in the material strength or the width of the at least one sliding surface, for example.
  • the amount of welding filler material used can be optimized as required by the precise manufacture.
  • the at least one sliding surface is produced from a further first sliding surface region from a further first welding filler material at a further first location of the base body and from a further second sliding surface region at a further second location is produced from a further second welding filler material, the further first welding filler material being selected from a plurality of welding filler materials adapted to expected further first loads of the further first sliding surface area and the further second welding filler material being adapted to expected further second loads of the further second sliding surface area the majority of filler metals is selected.
  • the mechanical loads to be expected result from loads which act on the rolling bearing from the outside or arise from the weight of the rolling bearing. These can be radial loads, axial loads or a combination of radial and axial loads.
  • the at least one sliding surface is welded on along a first contact surface to be expected in a first operating state of the rolling bearing between the rolling bearing cage and at least one bearing ring and a second sliding surface is welded along a ner second contact surface to be expected in a second operating state of the rolling bearing is welded on between the rolling bearing cage and at least one bearing ring.
  • the build-up welding is carried out by metal active gas welding (MAG welding) or by metal inert gas welding (MIG welding).
  • MAG welding metal active gas welding
  • MIG welding metal inert gas welding
  • a wire electrode is electrically fused in a protective gas atmosphere.
  • cladding is carried out by laser cladding or plasma powder cladding. Laser cladding and plasma powder cladding are very well controlled, safe and inexpensive welding processes that can be automated very well and deliver results of high quality.
  • the at least one sliding surface is reworked mechanically after cladding. This makes it possible to increase the geometric accuracy of the sliding surfaces. It is conceivable that the layers applied by build-up welding are milled, ground, etched, polished and / or brought into the desired shape by another method.
  • the at least one sliding surface is preferably produced by cladding in such a way that, after cladding, without further finishing, it corresponds to the requirements made of the at least one sliding surface with regard to the geometric shape and surface properties of the at least one sliding surface.
  • a roller bearing cage for a roller bearing in particular large roller bearing cage for a large roller bearing
  • the roller bearing cage comprising a base body and the base body having at least one sliding surface, characterized in that the at least one sliding surface has one the base body is a glue surface welded on with a filler metal.
  • the automation of the manufacturing process means that the at least one sliding surface is very inexpensive, fast, process-stable and, at the same time, can be manufactured with high precision and repeat accuracy precisely adapted to the expected loads. Furthermore, the risk of failure and error is reduced since, in contrast to the prior art, there are no connection weld seams between the roller bearing cage on the one hand and bearings to be welded on, on the other hand, metal sliding pieces which can represent weak points.
  • the at least one sliding surface consists of aluminum bronze.
  • Aluminum bronze is extremely low-wear and is therefore ideally suited as a filler metal for the method according to the invention.
  • the at least one sliding surface is arranged on at least one contact surface between the large roller bearing cage and one or more bearing rings.
  • the basic body of the rolling bearing cage guides and spaced the rolling elements of the rolling bearing.
  • the rolling bearing cage itself is guided through contact surfaces between the rolling bearing cage and one or more bearing rings. Due to the movement of the rolling elements along the bearing rings, the rolling bearing cage comes into contact with the inner bearing ring, the outer bearing ring or also partly with the inner bearing ring and partly with the outer bearing ring, depending on the load situation.
  • the guidance of the rolling elements by the rolling elements means that the rolling elements press the rolling element cage against the inner and / or the outer bearing ring.
  • the welding filler material consists of a material composition made of different materials.
  • the material composition is preferably designed so that the friction and thus the wear are reduced.
  • the at least one sliding surface is produced in a plurality of layers, where where the layers are preferably overlay welded with different filler metals.
  • the layers are preferably overlay welded with different filler metals.
  • the at least one sliding surface has a first sliding surface area at a first location of the base body and a second sliding surface area at a second location of the base body, the shape and / or volume of the first sliding surface area expected first loads of the first sliding surface area are adapted and the second sliding surface area is adapted in shape and / or volume to expected second loads of the second sliding surface area.
  • the weight of the large roller bearing is optimized by the exact dimensioning of the at least one sliding surface. This applies in particular to the weight of the sliding material, which is expensive in relation to the other materials used and in which weight savings of up to 75% compared to the prior art can be achieved by using the method according to the invention and in particular the preferred embodiment.
  • the at least one sliding surface has a further first sliding surface region at a further first location on the base body, the further first sliding surface region being produced from a further first welding filler material, and the at least one sliding surface a further second point of the base body has a further second sliding surface area, the further second sliding surface area being produced from a further second welding filler material, the material composition of the further first welding filler material being adapted to expected further first loads on the further first sliding surface area and the further one second filler metal in its material composition to be expected two more te loads of the further second sliding surface area is adjusted.
  • the roller bearing cage to be guided in the roller bearing through the at least one contact surface during operation of the roller bearing cage, the at least one sliding surface being arranged along the at least one contact surface, the geometric The course of the at least one sliding surface along the at least one contact surface is adapted to the loads to be expected of the at least one contact surface. It is conceivable that a plurality of different courses of further sliding surfaces correspond to the expected courses of contact between the roller bearing cage and the at least one bearing ring under different operating conditions of the roller bearing.
  • the individual courses of the further sliding surfaces of the plurality of different courses of the further sliding surfaces have different shapes and / or volumes and / or consist of different materials, the respective shapes and / or volumes and / or materials of the The courses of the other sliding surfaces are adapted to the loads to be expected from the other sliding surfaces.
  • Figures 1 (a) - (b) each show the basic principle of the method for producing
  • Figures 2 (a) - (b) each show the basic principle of the method for producing
  • FIG. 3 schematically shows part of a roller bearing cage according to an exemplary embodiment of the present invention.
  • FIG. 1 (a) schematically shows the method for producing roller bearing cages 10 (see FIG. 3) according to an exemplary embodiment of the present invention by means of cladding.
  • a filler metal 2 is deposited on the contact surface of the base body 1 of the roller bearing cage 10 of a roller bearing, which lies against a bearing ring during operation of the roller bearing and executes a relative movement to the bearing ring (not shown).
  • the filler metal 2 is a powdery material mixture.
  • the filler metal 2 can also be fed to the welding process as a rod or in a similar solid design.
  • a laser beam 3 welds the filler metal 2 onto the contact surface of the base body 1. The resulting coating is the sliding surface 4.
  • the sliding surface 4 can be smoothed and polished. However, it is also possible to do without post-cladding in the interest of cost-effective production. With surfacing, sliding surfaces 4 with sufficient dimensional accuracy and surface quality can be produced even without mechanical finishing.
  • the sliding surfaces 4 are welded onto the base body 1 in such a way that they are located precisely at the points on the contact surface where friction arises through contact with a bearing ring.
  • the sliding surfaces 4 are adapted to the loads to be expected of the sliding surfaces 4 which arise during operation of the large roller bearing.
  • the welding filler material 2 or the welding filler materials 2 are adapted to the loads on the sliding surfaces 4 that are to be expected during operation of the large roller bearing.
  • the manufacturing process of the sliding surfaces 4 is at least partially automated.
  • FIG. 1 (b) shows schematically the method for producing roller bearing cages 10 (see FIG. 3) according to a further exemplary embodiment of the present invention by means of cladding.
  • the method shown differs from that in FIG 1 (a) shows that the filler metal 2 is welded onto the base body 1 of the roller bearing cage 10 as a welding wire 5 by means of MAG welding.
  • FIG. 2 (a) schematically shows the method for producing roller bearing cages 10 (see FIG. 3) according to a further exemplary embodiment of the present invention by means of cladding.
  • the sliding surface 4 is in two layers, namely the lower layer 4 ′ and the upper layer 4 “Welded to order.
  • the filler metal 2 is deposited on the steel lower layer 4 'welded on by laser cladding.
  • the filler metal 2 is a powdery material mixture, aluminum bronze in the case shown.
  • the laser beam 3 welds the filler metal 2 onto the lower layer 4 '.
  • FIG. 2 (b) the process for producing roller bearing cages 10 (see FIG. 3) according to a further exemplary embodiment of the present invention is shown schematically shown by cladding. The method shown differs from that in FIG. 3
  • FIG. 3 schematically shows part of a roller bearing cage 10 according to an exemplary embodiment of the present invention.
  • the roller bearing cage 10 is produced using a method 10 according to an exemplary embodiment of the present invention and has the base body 1 and sliding surfaces 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

L'invention concerne un procédé de fabrication de cages de palier à roulement destinées à des paliers à roulement, en particulier de fabrication de grandes cages de palier à roulement destinées à de grands paliers à roulement. Dans une première étape, un corps de base est produit et dans une deuxième étape le corps de base est pourvu d'au moins une surface coulissante. L'invention est caractérisée en ce que l'au moins une surface coulissante est produite par soudage avec apport d'une matière de soudage supplémentaire au corps de base. L'invention concerne également une cage de palier à roulement destinée à un palier à roulement, en particulier une grande cage de palier à roulement destinée à un grand palier à roulement. La cage de palier à roulement comprend un corps de base et le corps de base comporte au moins une surface coulissante. L'invention est en outre caractérisé en ce que l'au moins une surface coulissante est une surface coulissante soudée avec apport de matière de soudage supplémentaire.
EP19765994.9A 2018-09-13 2019-09-06 Procédé de fabrication de cages de palier à roulement, en particulier de grandes cages de palier à roulement et cages de palier à roulement Withdrawn EP3850234A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018215609.3A DE102018215609A1 (de) 2018-09-13 2018-09-13 Herstellungsverfahren für Wälzlagerkäfige, insbesondere Großwälzlagerkäfige, und Wälzlagerkäfige
PCT/EP2019/073840 WO2020053091A1 (fr) 2018-09-13 2019-09-06 Procédé de fabrication de cages de palier à roulement, en particulier de grandes cages de palier à roulement et cages de palier à roulement

Publications (1)

Publication Number Publication Date
EP3850234A1 true EP3850234A1 (fr) 2021-07-21

Family

ID=67909384

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19765994.9A Withdrawn EP3850234A1 (fr) 2018-09-13 2019-09-06 Procédé de fabrication de cages de palier à roulement, en particulier de grandes cages de palier à roulement et cages de palier à roulement

Country Status (4)

Country Link
EP (1) EP3850234A1 (fr)
CN (1) CN112771280A (fr)
DE (1) DE102018215609A1 (fr)
WO (1) WO2020053091A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020208299A1 (de) 2020-07-02 2022-01-05 Thyssenkrupp Ag Käfigsegment zur Beabstandung von Wälzkörpern in einem Laufbahnsystem eines Wälzlagers und Verfahren zu dessen Herstellung

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3824279C1 (fr) * 1988-07-16 1989-06-22 Hoesch Ag, 4600 Dortmund, De
JP4490608B2 (ja) * 2001-08-09 2010-06-30 株式会社東芝 構造物の補修方法
DE10333542B3 (de) * 2003-07-23 2004-11-25 Siemens Ag Drehlageranordnung eines Großlagers und Verfahren zu dessen Herstellung
DE102006023397B4 (de) * 2006-05-17 2015-02-05 Man Diesel & Turbo, Filial Af Man Diesel & Turbo Se, Tyskland Gleitlager, Verfahren zur Herstellung sowie Verwendung eines derartigen Gleitlagers
EP2322313A1 (fr) * 2009-11-13 2011-05-18 Siemens Aktiengesellschaft Procédé de soudure de pièces usinées en superalliages résistant aux températures avec un débit particulier du matériau d'apport de soudage
US20150159696A1 (en) * 2012-02-14 2015-06-11 Aktiebolaget Skf Bearing component
US20140099476A1 (en) * 2012-10-08 2014-04-10 Ramesh Subramanian Additive manufacture of turbine component with multiple materials
WO2014128196A2 (fr) * 2013-02-21 2014-08-28 Hsp Schwahlen Gmbh Composant d'un palier à roulement ou d'un palier lisse et procédé de production correspondant
US9631157B2 (en) * 2013-10-18 2017-04-25 Weatherford Technology Holdings, Llc Cu—Ni—Sn alloy overlay for bearing surfaces on oilfield equipment
DE102014200466A1 (de) * 2014-01-14 2015-07-16 Schaeffler Technologies AG & Co. KG Befestigung eines Gleitstücks an einem Wälzlagerkäfig
DE102015101464A1 (de) * 2015-02-02 2016-08-04 Thyssenkrupp Ag Wälzlagerkäfig, Wälzlager und Verfahren zum Herstellen eines Wälzlagerkäfigs
DE102016110858B4 (de) * 2016-06-14 2018-03-08 Renk Aktiengesellschaft Gleitlager und Verfahren zum Herstellen desselben

Also Published As

Publication number Publication date
CN112771280A (zh) 2021-05-07
WO2020053091A1 (fr) 2020-03-19
DE102018215609A1 (de) 2020-03-19

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