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WO2011064063A1 - Palier de roulement, cage en peigne en tôle et procédé pour leur assemblage - Google Patents

Palier de roulement, cage en peigne en tôle et procédé pour leur assemblage Download PDF

Info

Publication number
WO2011064063A1
WO2011064063A1 PCT/EP2010/066218 EP2010066218W WO2011064063A1 WO 2011064063 A1 WO2011064063 A1 WO 2011064063A1 EP 2010066218 W EP2010066218 W EP 2010066218W WO 2011064063 A1 WO2011064063 A1 WO 2011064063A1
Authority
WO
WIPO (PCT)
Prior art keywords
bearing
rolling
cage
pockets
rolling elements
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/EP2010/066218
Other languages
German (de)
English (en)
Inventor
Gustav Weidmann
Heinz Pedrotti
Jens Krohn
Thomas Neudecker
Erich Kupfer
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.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler Technologies AG and 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 and Co KG filed Critical Schaeffler Technologies AG and Co KG
Publication of WO2011064063A1 publication Critical patent/WO2011064063A1/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
    • F16C43/00—Assembling bearings
    • F16C43/04—Assembling rolling-contact bearings
    • F16C43/06—Placing rolling bodies in cages or bearings
    • F16C43/08—Placing rolling bodies in cages or bearings by deforming the cages or the races
    • 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
    • F16C33/38—Ball cages
    • F16C33/41—Ball cages comb-shaped
    • 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
    • F16C33/38—Ball cages
    • F16C33/42—Ball cages made from wire or sheet metal strips
    • F16C33/422—Ball cages made from wire or sheet metal strips made from sheet metal
    • F16C33/425—Ball cages made from wire or sheet metal strips made from sheet metal from a single part, e.g. ribbon cages with one corrugated annular part
    • 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
    • F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
    • F16C2240/30—Angles, e.g. inclinations

Definitions

  • the invention relates to a rolling bearing with an inner ring and an outer ring and a plurality of rolling in a bearing cage between the inner ring and outer ring rolling elements, wherein the bearing cage distributed over the circumference bearing pockets for each having a rolling element.
  • the invention is therefore based on the object to propose a rolling bearing for higher operating temperatures, which is inexpensive and easy to manufacture. Description of the invention
  • the object is achieved by a roller bearing with an inner ring and an outer ring and several, rolling in a bearing cage between inner ring and outer ring rolling elements, the bearing cage distributed over the circumference bearing pockets for each rolling element and is integrally made of steel and the bearing pockets gripping the rolling elements with a wrap angle greater than 180 °.
  • the one-piece production of the bearing cage made of steel eliminates material costs compared to multipart bearing cages. In particular, if necessary, the material costs of different types of material can be saved. Furthermore, the assembly of the parts of the bearing cage eliminates additional assembly costs and parts management costs. Furthermore, by the proposed bearing cage over a multi-part design of the bearing cage or a one-piece, but with necessarily increased material thickness provided bearing cage made of plastic - if such should satisfy the required thermal requirement - space can be saved, so that particularly compact and / or with Increased lubricant reserve as grease fill provided rolling bearings can be provided.
  • the use of steel rather than, for example, plastic allows rolling bearing applications in elevated operating temperature applications, for example 300 ° C and higher.
  • the bearing cage made of sheet metal, for example made of stainless and / or elastic steel of small plate thickness
  • the bearing cage is preferably produced by means of a die-cutting process tool falling.
  • the rolling elements preferably balls
  • the rolling elements are modeled on the shape of the rolling elements to form homogeneous rolling surfaces.
  • a corresponding clearance for supplying the rolling elements with lubricant and maintaining a self-adjusting lubricating film can be provided in an advantageous manner.
  • the production of the bearing cage can be carried out in several stages.
  • a precursor of the bearing cage can be made with openings of the bearing pockets whose radius is greater than the radius of the rolling elements and thus the wrap angle is less than or equal to 180 °.
  • the rolling elements are inserted into this precursor of the bearing cage without mechanical effort and then by forming the bearing pockets, the undercuts, which lead to a wrap angle greater than 180 °, generated.
  • the precursor between the bearing pockets in cross-section may have roof-shaped widened areas with two legs enclosing a given angle of inclination, wherein the undercut takes place by deforming the legs while increasing the contact angle.
  • the embossing of the undercuts can be done, for example, by means of caulking or comparable forming techniques, for example by acting on the legs in the circumferential direction with an opposing forming force.
  • the roof-shaped region between the bearing pockets is flattened and in each case an undercut is produced on the mutually facing sides of the bearing pockets.
  • the formation of the remaining undercuts on the remaining storage bags takes place simultaneously or in succession, for example by means of a corresponding number of shaping or caulking tools arranged in the circumferential direction.
  • the placement of the bearing pockets of the bearing cage takes place when the bearing cage is finished, ie with already existing undercuts having a wrap angle greater than 180 °.
  • the bearing pockets can be designed to be limited elastic and the rolling elements introduced under elastic widening of the wrap angle in the bearing pockets, for example, be clipped.
  • FIG. 1 is a partial processing of a preliminary stage of a one-piece, formed of sheet metal bearing cage;
  • FIG. 2 shows a partial development of a roller bearing with the bearing cage provided with undercuts.
  • FIG. 1 shows the preliminary stage 2 of the bearing cage 1 in a partial development from a radial point of view with two bearing pockets 3 for receiving the rolling elements provided here in spherical form.
  • the precursor 2 is made of sheet metal by means of a deep-drawing process.
  • the bearing pockets 3 circular segment around the centers 4 of the not yet inserted rolling elements pronounced and have in the representation down and thus in the rolling bearing axially aligned openings 5, which are drawn around the centers 4 wrap angle eh greater than or equal to 180 ° and thus release the diameter d of the rolling elements.
  • the rolling elements can be inserted into the bearing pockets without overcoming an insertion force.
  • the precursor 2 is then reshaped so that the wrap angle eh is less than 180 ° and thus the rolling elements captive in the Storage bags 3 are included.
  • the bearing pockets 3 of the roof-shaped widened region 6 is provided with two legs 7, which include a bearing angle ßi, which can be an acute angle or - as shown here - a right angle.
  • the contact angle ßi can be up to 120 °. Due to the roof-shaped design of the legs 7, a stock of material is kept between the bearing pockets, by means of which after insertion of the rolling elements undercuts for the rolling elements can be formed.
  • Figure 2 shows this the finished mounted rolling bearing 8 in a partial development of radially inside, omitting the inner ring of the rolling bearing 8 with the finished bearing cage 1, the rolling elements 9 and the outer ring 10.
  • the wrap angle a 2 is greater than 180 ° and thus formed as a super-blunt angle.
  • the figure 2 further represents an advantageous embodiment of the rolling bearing 8 in partial development, which provides the bearing cage 1 tool without the precursor 2 of Figure 1, wherein the undercuts 1 1 are formed prior to introduction of the rolling elements 9 and the rolling elements under elastic stress of the Undercuts 1 1 are clipped into the storage bags 3.
  • the expression the undercuts 1 1 are selected so that the rolling elements 9 can be clipped in production with tolerable forces and low elastic deformation of the storage bags 3 and at the same time captive held in this.

Landscapes

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

Abstract

L'invention concerne un palier de roulement (8) comprenant une bague intérieure et une bague extérieure (10) et plusieurs corps de roulement (9) qui roulent dans une cage de roulement (1) entre la bague intérieure et la bague extérieure (10). Selon l'invention, la cage de roulement (1) présente des poches de roulement (3) distribuées sur son pourtour, respectivement pour un corps de roulement (9). Conformément à l'invention, pour produire un palier de roulement (8) économique et supportant les contraintes thermiques, la cage de roulement (1) est fabriquée d'une seule pièce en acier et ses poches de roulement (3) entourent les corps de roulement (9) avec un angle d'enroulement (α2) supérieur à 180°.
PCT/EP2010/066218 2009-11-27 2010-10-27 Palier de roulement, cage en peigne en tôle et procédé pour leur assemblage Ceased WO2011064063A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009056035.1 2009-11-27
DE102009056035A DE102009056035A1 (de) 2009-11-27 2009-11-27 Wälzlager

Publications (1)

Publication Number Publication Date
WO2011064063A1 true WO2011064063A1 (fr) 2011-06-03

Family

ID=43402134

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/066218 Ceased WO2011064063A1 (fr) 2009-11-27 2010-10-27 Palier de roulement, cage en peigne en tôle et procédé pour leur assemblage

Country Status (2)

Country Link
DE (1) DE102009056035A1 (fr)
WO (1) WO2011064063A1 (fr)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE207941C (fr) *
US624047A (en) * 1899-05-02 Process of manufacturing ball-retainers for antifriction-bearings
US1543320A (en) * 1924-11-03 1925-06-23 Fafnir Bearing Co Double-row ball bearing
GB244646A (en) * 1925-05-25 1925-12-24 Henry Frank Marles Improvements in or relating to ball or roller bearings
GB283925A (en) * 1927-01-20 1928-08-09 Cie Applic Mecaniques Improvements in or relating to ball bearings
US1958025A (en) * 1932-07-07 1934-05-08 S K F Ind Inc Art of making bearing cages and the product thereof
DE2659432A1 (de) * 1976-12-29 1978-07-06 Siemens Ag Verfahren zum einbau der kugeln eines kugellagers in einen einteiligen, aus blech gebildeten kugelkaefig, sowie kugelkaefig zur ausuebung des verfahrens
EP0506496A1 (fr) 1991-03-29 1992-09-30 S.N.R. Roulements Cage à éléments assemblés, notamment pour roulements à haute température de fonctionnement
US5291655A (en) * 1993-01-29 1994-03-08 The Torrington Company Method of making a one-piece ball bearing retainer
US5446963A (en) * 1994-01-31 1995-09-05 The Torrington Company Method of forming one-piece metallic ball bearing cage
DE102006015547A1 (de) 2005-04-04 2006-10-05 Aktiebolaget Skf Käfiganordnung für Wälzlager, Wälzlager und Harmonic Drives

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE207941C (fr) *
US624047A (en) * 1899-05-02 Process of manufacturing ball-retainers for antifriction-bearings
US1543320A (en) * 1924-11-03 1925-06-23 Fafnir Bearing Co Double-row ball bearing
GB244646A (en) * 1925-05-25 1925-12-24 Henry Frank Marles Improvements in or relating to ball or roller bearings
GB283925A (en) * 1927-01-20 1928-08-09 Cie Applic Mecaniques Improvements in or relating to ball bearings
US1958025A (en) * 1932-07-07 1934-05-08 S K F Ind Inc Art of making bearing cages and the product thereof
DE2659432A1 (de) * 1976-12-29 1978-07-06 Siemens Ag Verfahren zum einbau der kugeln eines kugellagers in einen einteiligen, aus blech gebildeten kugelkaefig, sowie kugelkaefig zur ausuebung des verfahrens
EP0506496A1 (fr) 1991-03-29 1992-09-30 S.N.R. Roulements Cage à éléments assemblés, notamment pour roulements à haute température de fonctionnement
US5291655A (en) * 1993-01-29 1994-03-08 The Torrington Company Method of making a one-piece ball bearing retainer
US5446963A (en) * 1994-01-31 1995-09-05 The Torrington Company Method of forming one-piece metallic ball bearing cage
DE102006015547A1 (de) 2005-04-04 2006-10-05 Aktiebolaget Skf Käfiganordnung für Wälzlager, Wälzlager und Harmonic Drives

Also Published As

Publication number Publication date
DE102009056035A1 (de) 2011-06-01

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