WO2012171806A1 - Bague de roulement - Google Patents

Bague de roulement Download PDF

Info

Publication number
WO2012171806A1
WO2012171806A1 PCT/EP2012/060271 EP2012060271W WO2012171806A1 WO 2012171806 A1 WO2012171806 A1 WO 2012171806A1 EP 2012060271 W EP2012060271 W EP 2012060271W WO 2012171806 A1 WO2012171806 A1 WO 2012171806A1
Authority
WO
WIPO (PCT)
Prior art keywords
bearing ring
recess
rolling bearing
raceway
rolling
Prior art date
Application number
PCT/EP2012/060271
Other languages
German (de)
English (en)
Inventor
Wilfried Huber
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 WO2012171806A1 publication Critical patent/WO2012171806A1/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
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/583—Details of specific parts of races
    • F16C33/585—Details of specific parts of races of raceways, e.g. ribs to guide the rollers
    • 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
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/225—Details of the ribs supporting the end of the rollers
    • 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
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/24—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for radial load mainly
    • 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
    • F16C2202/00—Solid materials defined by their properties
    • F16C2202/02—Mechanical properties
    • F16C2202/04—Hardness
    • 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
    • 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
    • F16C2361/00—Apparatus or articles in engineering in general
    • F16C2361/61—Toothed gear systems, e.g. support of pinion shafts

Definitions

  • the invention relates to a rolling bearing ring according to the preamble of claim 1 and a method for producing such a rolling bearing ring.
  • Rolling bearing components can basically be produced by machining and / or non-cutting methods.
  • a rolling bearing namely a ball bearing which has at least one bearing ring produced by a non-cutting shaping process, is known, for example, from DE 10 2004 038 709 A1.
  • a puncture may be formed between a raceway and a board of a bearing ring of a rolling bearing.
  • Various ways of designing the transition between a raceway and a board of a rolling bearing component are disclosed, for example, in DE 10 2006 039 365 A1.
  • the invention has for its object to further develop a bearing ring relative to the cited prior art, in particular with regard to load capacity and fatigue strength. Summary of the invention
  • the rolling bearing ring has in known per se a raceway for rolling elements and at least one of the raceway adjacent board, wherein between the board and the raceway a recess is formed.
  • the recess is formed as a zone which has been mechanically strengthened by a rolling process.
  • the surface hardness in the region of the recess is greater than in the region of the raceway.
  • the rolling bearing ring can basically be designed as a bearing ring of a radial bearing as well as a bearing ring of a thrust bearing or a radial-axial bearing.
  • the radial depth of the groove measured relative to the raceway of the roller bearing ring is preferably at least 10%, in particular at least 20%, greater than the axial depth of the groove opposite the inner face of the flange adjacent to the rolling elements ,
  • the puncture of the bearing ring designed as a radial bearing rolling bearing ring has a first edge, which borders on the radially extending shelf, and a second flank which adjoins the raceway, wherein an angle of at least 25 ° and at most 45 ° is included between the flanks, and wherein the bisector between the flanks with the Symmetryeachse the rolling bearing ring, that is, the axis of rotation of the bearing, an angle of at least 30 ° and at most 60 °, in particular an angle of at least 40 ° and at most 50 °, includes.
  • the terms "axial” and "radial” always refer to the axis of rotation of the bearing.
  • the rolling bearing ring is a machined rolling bearing part as a whole.
  • the puncture can be generated by hard turning on an already hardened part, ie bearing ring blank. Alternatively, it is also possible to produce the groove on the still uncured bearing ring blank during soft machining. A combination of cutting soft machining and hard turning is also possible.
  • a tool for smoothing and deep rolling the groove, the contour of which has a matching with the cross section of the recess section.
  • the rolling process is carried out with balls, which roll in the groove and are exposed to a high pressure load.
  • suitably shaped, substantially disc-shaped rolling tools which engage in the groove at its periphery, can be used. Regardless of the rolling tools used, tensile stresses generated by prior machining are converted into compressive stresses in the groove by the action of the rolling tool, which in particular increase the fatigue strength and thus the life of the rolling bearing ring and the entire rolling bearing.
  • the roughness in the region of the recess after the rolling process is preferably not more than 1, 0 ⁇ Ra, for example, at most 0.5 ⁇ Ra, in particular at most 0.2 ⁇ Ra, more preferably at most 0.1 ⁇ Ra.
  • Fig. 1 in a sectional view fragmentary a rolling bearing ring.
  • a roller bearing ring designated overall by the reference numeral 1, with regard to its possible installation situation, is referred to the cited prior art, has a raceway 2 on which rollers, for example cylinder or tapered rollers, roll during normal operation of the rolling bearing (not shown) , The approximate position of the axis of rotation (not to scale) of the rolling bearing is marked in Fig. 1 with R L.
  • the rolling bearing is designed as a radial bearing, wherein the rolling bearing ring 1 shown is an inner ring of this bearing. An unillustrated outer ring of the bearing can be designed accordingly.
  • the overall cylinder jacket-shaped track 2 is laterally, that is, in the axial direction, bounded by a recess 3, which in turn adjoins a board 4, which extends in the radial direction to the outside and has an inner end face 5, to which the rolling elements of the rolling bearing start and thus also absorb axial forces. Between the raceway 2 and the inner end face 5, a right angle is formed in the illustrated embodiment. Deviating from this, in particular when the rolling bearing is designed as a tapered roller bearing, an angle different from 90 ° can also be formed at the corresponding point. In all cases, the track 2 is formed integrally with the board 4.
  • the raceway 2 is machined.
  • the raceway 2 is machined.
  • a bearing ring blank from which in During the processing of the rolling bearing ring 1 is formed, which produces the final shape near the contour of the recess 3 by machining, in particular hard turning.
  • the recess 3 is smoothed by mechanical processing with a suitably shaped rolling tool and at the same time strengthened.
  • a surface with a roughness of significantly less than 1 ⁇ wherein up to a depth of more than 10 ⁇ , for example, to a depth of more than 50 ⁇ , compressive stresses are present.
  • the groove 3 has a total of a V-shape with a first, adjacent to the edge 4 edge 6, a second, adjacent to the track 2 flank 7, and a circular arc-shaped in the illustrated, to the rotation axis R cross-section, the flanks 6,7 connect Basic sheet 8 on.
  • An angle bisector between the flanks 6,7 is denoted by W and includes with the rotation axis R an angle ß of 45 °.
  • the angle ⁇ between the flanks 6,7 is 35 ° ⁇ 2 °.
  • the depth of the groove 3 measured radially in the radial direction, that is to say radially inward from the raceway 2, is designated T R.
  • T A the depth of the groove 3 measured in the axial direction, that is to say from the inner end face 5 of the rim 4 axially outwards.
  • the radial depth T R is at least 10%, in the present case by more than 20%, greater than the axial depth T A of the groove 3.
  • the base sheet 8 is described by a radius R E , which is at least 25% larger than that radial depth T R and at least 50% greater than the axial depth T A is. Together with the mechanical reworking of the groove 3 by rolling, this geometry ensures a particularly high load capacity of the rim 3 of the roller bearing ring 1, even under oscillating stress. LIST OF REFERENCE NUMBERS

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

L'invention concerne une bague de roulement (1) comprenant au moins un chemin de roulement (2) pour un corps roulant, et un rebord (4) adjacent au chemin de roulement (2), ainsi qu'une gorge (3) formée entre le rebord (4) et le chemin de roulement (2), qui est conçue comme une zone renforcée mécaniquement présentant des contraintes internes de compression.
PCT/EP2012/060271 2011-06-17 2012-05-31 Bague de roulement WO2012171806A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011077738A DE102011077738A1 (de) 2011-06-17 2011-06-17 Wälzlagerring
DE102011077738.5 2011-06-17

Publications (1)

Publication Number Publication Date
WO2012171806A1 true WO2012171806A1 (fr) 2012-12-20

Family

ID=46172799

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/060271 WO2012171806A1 (fr) 2011-06-17 2012-05-31 Bague de roulement

Country Status (2)

Country Link
DE (1) DE102011077738A1 (fr)
WO (1) WO2012171806A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019218794A1 (de) * 2019-12-03 2021-06-10 Thyssenkrupp Ag Verfahren zur Erhöhung der Tragfähigkeit und Walzvorrichtung zum Hartwalzen einer randschichtgehärteten Wälzlagerlaufbahn

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2209454A1 (de) * 1972-02-29 1973-09-06 Schaeffler Ohg Industriewerk Waelzlager
DE3248634A1 (de) * 1982-12-30 1984-07-12 Jürgen Dr.-Ing. 8523 Baiersdorf Breme Verfahren zur herstellung eines ringformkoerpers, insbesondere eines waelzlagerringrohlings
DE102004038709A1 (de) 2004-08-10 2006-02-23 Ina-Schaeffler Kg Mehrreihiges Schrägkugellager
DE102004048172A1 (de) * 2004-10-02 2006-04-06 Ina-Schaeffler Kg Spanlos hergestelltes dünnwandiges rostfreies Lagerbauteil insbesondere Wälzlagerbauteil
DE102006039365A1 (de) 2006-08-22 2008-03-06 Schaeffler Kg Radial vorgespanntes Wälzlager

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2951036B2 (ja) * 1991-04-30 1999-09-20 エヌティエヌ株式会社 円すいころ軸受
ITTO20020346A1 (it) * 2002-04-22 2003-10-22 Skf Ind Spa Cuscinetto a rulli conici.
DE10235957B4 (de) * 2002-08-06 2005-01-20 Hegenscheidt-Mfd Gmbh & Co. Kg Verfahren zum Fertigbearbeiten von Kurbelwellen für Kraftfahrzeugmotoren
DE102004042707B4 (de) * 2004-09-03 2006-07-06 Daimlerchrysler Ag Kurbelwelle und Verfahren zu ihrer Herstellung
DE102005021793B4 (de) * 2005-05-11 2007-03-29 Maschinenfabrik Alfing Kessler Gmbh Verfahren und Anlage zum Härten von Übergangsradien einer Welle
JP4812376B2 (ja) * 2005-09-09 2011-11-09 Ｎｔｎ株式会社 車輪用軸受装置の製造方法
DE102005061179A1 (de) * 2005-12-21 2007-06-28 Schaeffler Kg Wälzlager und Verfahren zu dessen Herstellung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2209454A1 (de) * 1972-02-29 1973-09-06 Schaeffler Ohg Industriewerk Waelzlager
DE3248634A1 (de) * 1982-12-30 1984-07-12 Jürgen Dr.-Ing. 8523 Baiersdorf Breme Verfahren zur herstellung eines ringformkoerpers, insbesondere eines waelzlagerringrohlings
DE102004038709A1 (de) 2004-08-10 2006-02-23 Ina-Schaeffler Kg Mehrreihiges Schrägkugellager
DE102004048172A1 (de) * 2004-10-02 2006-04-06 Ina-Schaeffler Kg Spanlos hergestelltes dünnwandiges rostfreies Lagerbauteil insbesondere Wälzlagerbauteil
DE102006039365A1 (de) 2006-08-22 2008-03-06 Schaeffler Kg Radial vorgespanntes Wälzlager

Also Published As

Publication number Publication date
DE102011077738A1 (de) 2012-12-20

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