EP1261812A1 - Piece fa onnee realisee a partir d'une bande - Google Patents

Piece fa onnee realisee a partir d'une bande

Info

Publication number
EP1261812A1
EP1261812A1 EP01903682A EP01903682A EP1261812A1 EP 1261812 A1 EP1261812 A1 EP 1261812A1 EP 01903682 A EP01903682 A EP 01903682A EP 01903682 A EP01903682 A EP 01903682A EP 1261812 A1 EP1261812 A1 EP 1261812A1
Authority
EP
European Patent Office
Prior art keywords
recess
projection
strip
cage
band
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Withdrawn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
EP01903682A
Other languages
German (de)
English (en)
Inventor
Wolfgang Fugel
Leo Müntnich
Hartwig Waldert
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.)
IHO Holding GmbH and Co KG
Original Assignee
INA Schaeffler 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 INA Schaeffler KG filed Critical INA Schaeffler KG
Publication of EP1261812A1 publication Critical patent/EP1261812A1/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Withdrawn legal-status Critical Current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
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/46—Cages for rollers or needles
    • F16C33/54—Cages for rollers or needles made from wire, strips, or sheet metal
    • F16C33/542—Cages for rollers or needles made from wire, strips, or sheet metal made from sheet metal
    • F16C33/543—Cages for rollers or needles made from wire, strips, or sheet metal made from sheet metal from a single part
    • F16C33/546—Cages for rollers or needles made from wire, strips, or sheet metal made from sheet metal from a single part with a M- or W-shaped cross section
    • 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
    • F16C33/4694—Single-split roller or needle cages
    • 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
    • F16C33/54—Cages for rollers or needles made from wire, strips, or sheet metal
    • F16C33/542—Cages for rollers or needles made from wire, strips, or sheet metal made from sheet metal
    • F16C33/543—Cages for rollers or needles made from wire, strips, or sheet metal made from sheet metal from a single part
    • F16C33/545—Cages for rollers or needles made from wire, strips, or sheet metal made from sheet metal from a single part rolled from a band
    • 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
    • F16C19/26—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 with a single row of rollers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
    • G01P3/487—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by rotating magnets
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
    • G01P3/488—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by variable reluctance detectors

Definitions

  • the invention relates to a molded part produced from a strip, the ends of which touching in the circumferential direction are permanently connected to one another.
  • the invention also relates to associated processes for the production of molded parts.
  • connection welding creates welding poses which have to be removed again in a subsequent operation, since they can otherwise damage the bearing.
  • imperfections arise during the connection welding. These include internal geometric irregularities that can occur in different levels. The imperfections begin within the roughness and end at a depth at which they have a lasting effect on the function of the component, ie in extreme cases make it unusable. Such imperfections now have a notch effect, ie they cause a disturbance in the uniform flow of force in the component due to the sudden change in the cross section or the surface contour. On These notches develop a stress concentration, with a stress peak forming in the notch base. This notch now has two effects. On the one hand, the load-bearing cross-section is reduced, on the other hand, the stress is concentrated on the notch base. This notch effect within the welded connection between the two joints of the cage has a particularly negative effect on its fatigue strength under high loads.
  • the object of the invention is therefore to develop a novel connection of a molded part made from tape, which ensures reliable fatigue strength even under the highest loads.
  • this object is achieved according to the characterizing part of claim 1 in that at one end of the band a recess and at the other end an excess projection are arranged, which after bending the band are joined by applying a force in the axial or radial direction are, so that an indissoluble press fit is formed by plastic deformation.
  • molded part produced from a strip is to be interpreted broadly in the sense of the invention, ie molded parts are conceivable for the most diverse applications.
  • the molded part is a rotationally symmetrical cage for a rolling bearing consisting of webs and side rings, with at least one side ring attached has a recess at one end and a projection at the other end.
  • the molded part is designed as a pulse wheel for a device for measuring a rotational speed of a rotating component, which has circumferentially evenly spaced counting sections which cooperate with a sensor device, the pulse wheel being connectable to the rotating component is.
  • the recess should be designed as a receiving bore and the projection as a cylinder.
  • the shape of the recess and projection are freely selectable, with particular preference being given to those shapes which can be produced with as little effort as possible and which can be fitted well into one another.
  • the band should be made of an iron material, of copper or a copper alloy, of aluminum or of an aluminum alloy or of a plastic.
  • a method for the production of a molded part in the form of a cage is protected, where appropriate, first an endless starting strip is profiled by a shaping process in accordance with the desired later cross-section, then pockets are punched out for receiving rolling elements, and then, if necessary, the Bags are provided with guide and / or holding surfaces, then a strip is cut to length, which is provided at its opposite end with the recess and with the projection, then the strip is bent into the ring shape, before by axially or radially pressing the projection into one another Recess of the dimensionally stable cage is formed.
  • Figure 1 is a perspective view of a tape section
  • Figures 2 u. 3 shows a section of a roller bearing cage shown in perspective.
  • the strip shown in FIG. 1 and designated 1 has the side parts 2 and 3 which are connected to one another by webs 4 which are evenly spaced from one another, so that pockets 5 are formed.
  • the strip 1 is profiled in such a way that an M-shaped cage is formed after it has been bent round.
  • Each side part 2 and 3 has a recess 6 at one end and a projection 7 at the other end, which are designed as a bore or as a cylinder, the projection 7 being oversized with respect to the recess 6, so that when the material is squeezed Inserting the projection 7 into the recess 6 creates a permanent connection.
  • the projection 7 is pressed into the recess 6 in such a way that the two side parts 1, 2 are placed axially offset next to one another by their width and are then pressed axially into one another by the application of a force.
  • the bearing cage shown partially in FIG. 2 and designated 8 has the side rings 9 and 10, which are connected to one another by webs 11, so that pockets 12 receiving rolling elements are formed.
  • the webs 11 are profiled in such a way that, starting from the two sides 9, 10, they first run parallel to the bearing axis (not shown), then fall obliquely radially inwards and finally unite in a partial region running parallel to the bearing axis.
  • the cage 8 has at its abutting ends on each side ring 9 and 10 the recess 6 and the projection 7, with this embodiment of the cage 8 pressing the projection 7 into the recess after the round bending 6 also takes place in the axial direction.
  • the cage 8 in FIG. 3 is provided with recesses 6 and projections 7 in such a way that they have to be brought into one another by radial displacement after the round bending.
  • the joints are each placed in the area of a pocket 5, 12.
  • their arrangement in the web area is just as possible.

Landscapes

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

Abstract

L'invention concerne une pièce façonnée réalisée à partir d'une bande, dont les extrémités reposant l'une sur l'autre dans le sens circonférentiel sont reliées rigidement. Cette pièce façonnée se caractérise par le fait qu'à une extrémité de la bande (1) est formée une cavité (6) et qu'à l'autre extrémité de la bande est formée une saillie (7) présentant une dimension supérieure à celle de la cavité. Après cintrage, de la bande (1) dans le sens axial ou radial, ladite saillie est enfoncée dans ladite cavité, et, ainsi, un joint à ajustement serré non libérable est constitué par déformation plastique.
EP01903682A 2000-03-10 2001-01-31 Piece fa onnee realisee a partir d'une bande Withdrawn EP1261812A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10011651A DE10011651B4 (de) 2000-03-10 2000-03-10 Rotationssymmetrisches Formteil
DE10011651 2000-03-10
PCT/EP2001/000995 WO2001069099A1 (fr) 2000-03-10 2001-01-31 Piece façonnee realisee a partir d'une bande

Publications (1)

Publication Number Publication Date
EP1261812A1 true EP1261812A1 (fr) 2002-12-04

Family

ID=7634198

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01903682A Withdrawn EP1261812A1 (fr) 2000-03-10 2001-01-31 Piece fa onnee realisee a partir d'une bande

Country Status (4)

Country Link
US (1) US6883968B2 (fr)
EP (1) EP1261812A1 (fr)
DE (1) DE10011651B4 (fr)
WO (1) WO2001069099A1 (fr)

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USD690334S1 (en) * 2010-01-13 2013-09-24 Irwin Industrial Tool Company Hole saw
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US10137507B2 (en) 2010-01-13 2018-11-27 Irwin Industrial Tool Company Hole cutter with multiple fulcrums
US9884374B2 (en) 2015-09-03 2018-02-06 Irwin Industrial Tool Company Hole cutter with multiple fulcrums
US9724766B2 (en) 2010-01-13 2017-08-08 Irwin Industrial Tool Company Hole cutter with multiple fulcrums
US9808869B2 (en) 2010-01-13 2017-11-07 Irwin Industrial Tool Company Hole cutter with chip egress aperture
DE102011003419A1 (de) * 2011-02-01 2012-08-02 Schaeffler Technologies Gmbh & Co. Kg Ringförmiger Wälzlagerkäfig
DE102011005407B4 (de) * 2011-03-11 2012-12-06 Aktiebolaget Skf Konzept für einen geschlitzten Lagerkäfig
DE102011005725A1 (de) * 2011-03-17 2012-09-20 Schaeffler Technologies Gmbh & Co. Kg Wälzlager
JP5731914B2 (ja) * 2011-06-17 2015-06-10 Ntn株式会社 二つ割り保持器及び二つ割りころ軸受
DE102011080168B4 (de) * 2011-08-01 2022-06-30 Aktiebolaget Skf Konzept für einen geschlitzten Lagerkäfig
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JP5938271B2 (ja) * 2012-05-21 2016-06-22 Ntn株式会社 ころ軸受、およびシャフト支持構造
EP2687740A1 (fr) * 2012-07-18 2014-01-22 Aktiebolaget SKF Verrouillage entre les bouts d'une cage de roulement à fente
DE102013206811B4 (de) * 2013-04-16 2021-12-16 Schaeffler Technologies AG & Co. KG Freilauf
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JP1523820S (fr) * 2014-09-16 2015-05-18
JP1523819S (fr) * 2014-09-16 2015-05-18
JP1523821S (fr) * 2014-09-16 2015-05-18
ITUB20152816A1 (it) * 2015-08-03 2017-02-03 Skf Ab Gabbia per un cuscinetto di rotolamento e cuscinetto di rotolamento associato
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JP1645893S (fr) * 2019-01-10 2019-11-18
DE102019201560A1 (de) 2019-02-07 2020-08-13 Aktiebolaget Skf Lagerkäfigsegment mit Stoßkante zum Verschweißen
DE102019201553A1 (de) 2019-02-07 2020-08-13 Aktiebolaget Skf Lagerkäfigsegment mit Ausrichtungselement
DE102019201561A1 (de) 2019-02-07 2020-08-13 Aktiebolaget Skf Lagerkäfigsegment eines Metallblechkäfigs
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DE102021206285A1 (de) 2021-06-18 2022-12-22 Aktiebolaget Skf Käfigsegment für einen Wälzlagerkäfig
DE102021206282A1 (de) 2021-06-18 2022-12-22 Aktiebolaget Skf Käfigsegment für einen Wälzlagerkäfig

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Also Published As

Publication number Publication date
US20030077017A1 (en) 2003-04-24
US6883968B2 (en) 2005-04-26
DE10011651A1 (de) 2001-09-13
WO2001069099A1 (fr) 2001-09-20
DE10011651B4 (de) 2009-12-24

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