WO2008110139A2 - Palier à rouleaux à plusieurs rangées - Google Patents

Palier à rouleaux à plusieurs rangées Download PDF

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Publication number
WO2008110139A2
WO2008110139A2 PCT/DE2008/000383 DE2008000383W WO2008110139A2 WO 2008110139 A2 WO2008110139 A2 WO 2008110139A2 DE 2008000383 W DE2008000383 W DE 2008000383W WO 2008110139 A2 WO2008110139 A2 WO 2008110139A2
Authority
WO
WIPO (PCT)
Prior art keywords
rolling elements
roller bearing
spacer element
rows
row
Prior art date
Application number
PCT/DE2008/000383
Other languages
German (de)
English (en)
Other versions
WO2008110139A3 (fr
Inventor
Holger Grieser
Original Assignee
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 Schaeffler Kg filed Critical Schaeffler Kg
Publication of WO2008110139A2 publication Critical patent/WO2008110139A2/fr
Publication of WO2008110139A3 publication Critical patent/WO2008110139A3/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
    • 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
    • F16C19/34—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 both radial and axial load
    • F16C19/38—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 both radial and axial load with two or more rows of rollers
    • F16C19/383—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 both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
    • F16C19/388—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 both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with four rows, i.e. four row tapered roller 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
    • 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
    • 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
    • F16C33/52—Cages for rollers or needles with no part entering between, or touching, the bearing surfaces of the rollers
    • F16C33/523—Cages for rollers or needles with no part entering between, or touching, the bearing surfaces of the rollers with pins extending into holes or bores on the axis of the rollers
    • F16C33/526—Cages for rollers or needles with no part entering between, or touching, the bearing surfaces of the rollers with pins extending into holes or bores on the axis of the rollers extending through the rollers and joining two lateral cage parts

Definitions

  • the invention relates to a multi-row roller bearing, with at least one pair of rows of rolling elements in X-arrangement, the two rows of rolling the at least one pair of rows have the same number of rolling elements and the same rotational speeds around the longitudinal axis of the roller bearing, the rolling elements of the row pairing on a bordhom bearing outer ring and a unrolled bearingless inner ring, and wherein the rolling elements each have an axial through hole and axially adjacent rolling elements are each penetrated by a common, in the middle of the X-arrangement of the rolling elements of the row pairing bent formed fixing bolts.
  • roller bearings have long been known.
  • a roller bearing of the generic type with two rows of rolling elements in an X arrangement in which rolling elements provided with a through-hole roll between a non-bearing bearing outer ring and a non-bearing bearing inner ring, as well as axially adjacent rolling elements are penetrated in each case by a common, bent formed fixing bolt, which in turn is secured at both ends by means of a wire or by riveting that captivation of the composite component of rolling elements, fixing bolts and a arranged between the rolling elements and also penetrated by the fixing bolt spacer ring is guaranteed.
  • Fig. 10 of this document further shows a spacer element in the form of a ball, which is arranged and supported between the two adjacent rolling elements and guided within a cage.
  • a roller bearing similar to the above-described roller bearing is disclosed in US Pat. No. 1,418,277. Also in this case a ball is guided in frontal recesses of the rolling elements between adjacent rolling elements.
  • the invention has for its object to provide a further improved multi-row roller bearing of the generic type.
  • the object is achieved by that the fixing bolt, forming a bolt cage, is firmly connected at both ends to outer cage disks, and that between the two axially adjacent rolling bodies a rotationally symmetrical spacer element is convexly curved in the axial direction curved contact surfaces is arranged, which is also penetrated by the fixing bolt through a through hole and axially supported in a recess of the end face of the adjacent rolling elements.
  • a roller bearing is provided with further improved leadership and Abrolleigenschaften for the rolling elements, which is on top of that simple and inexpensive to manufacture and assemble.
  • the contact surface of the recess of the adjacent rolling elements is formed as far as possible complementary to the contact surfaces of the spacer element, but at least formed such that between the spacer element and the adjacent rolling elements, an axial force transmission and mutual guidance of the same is possible ,
  • the through hole of the spacer element is preferably formed outwardly conically expanded viewed in the axial direction.
  • the spacer element may be formed by a separate ball, a barrel or another spacer with rotationally symmetrical and convexly curved in the axial direction contact surfaces, which is axially supported in the recess of the adjacent rolling elements.
  • the spacer element may be formed by an integrally formed with one of the two axially adjacent rolling elements frontal peg-shaped bulge with rotationally symmetrical outer contour and convexly curved in the axial direction contact surface, which is then axially supported in the recess of the other rolling element.
  • pin-shaped bulge is penetrated axially by the fixing bolt.
  • a roller bearing of the at least one paired row pairing of the multi-row roller bearing may be formed as a tapered roller, cylindrical roller, barrel or other bearing for receiving at least axial rolling bearing forces.
  • the other paired roller bearing can be identical, but also with different pressure angle, or in different design, eg tapered roller paired with pendulum roller, be formed.
  • FIG. 1 is an overall perspective view of a four-row roller bearing of the type according to the invention
  • Fig. 2 shows the roller bearing of FIG. 1 in a partial longitudinal section
  • FIG. 3 shows a detail "Z" according to FIG. 2.
  • the four-row roller bearing shown in Figures 1 and 2 is essentially of two single-row axially outer bearing outer rings 1 and 2, a middle double row bearing outer ring 3, two double row bearing inner rings 4, 5 and a plurality of them in the four rows of rolling elements 6, 7; 8, 9 rolling rolling elements 10a, 10b formed.
  • the rolling elements 10a, 10b are formed as tapered rollers, wherein adjacent rows of rolling elements 6, 7; 8, 9 each form a row pairing with rolling elements 10a, 10b in an X arrangement, in which the pressure lines of the individual rows of rolling elements 6, 7; 8, 9 cut each row pairing.
  • the bearing outer and inner races are 1, 2, 3, 4, 5 bordlos formed, which is given a larger load capacity of the roller bearing at given external dimensions by the achievable larger roll length over-board bearing rings.
  • the size and weight of the roller bearing can be reduced at given load ratings.
  • the production of the bearing outer and inner bearing rings 1, 2, 3, 4, 5 is simplified; The roller bearing is thus cheaper to manufacture.
  • the rolling elements 10a, 10b each have an axial through hole 11, wherein adjacent rolling elements 10a, 10b of each pair of rows are penetrated by a common fixing bolt 12.
  • the fixing bolt 12 is in turn in adaptation to the genant X-arrangement of the rolling elements 10a, 10b of the respective row pairing forming rows of rolling elements 6, 7; 8, 9 bent centrally and both ends with outer cage discs 13, 14 firmly connected, preferably welded, whereby a so-called pin cage is formed.
  • a rotationally symmetrical spacer element 15 is arranged between the two axially adjacent rolling elements 10a, 10b of each row pairing with convexly curved in the axial direction contact surfaces 16, which also from the fixing bolt 12th is penetrated through an axial through hole 17 (Fig. 2 and Fig. 3).
  • the spacer element 15 is in turn supported in a recess 18 of the end face 19 of the adjacent rolling elements 10a, 10b such that between the spacer element 15 and the adjacent rolling elements 10a, 10b, an axial force transmission and mutual guidance of the same is possible.
  • the spacer element 15 is formed as a separate ball, the contact surfaces 16 of preferably largely complementary formed, so spherical profiled contact surfaces 20 of the recesses 18 are present.
  • other profiles of the recesses 18 are possible, for example, conical profiles, as shown in Fig. 3.
  • such mutually corresponding contact surfaces 16, 20 provide that an axial force transmission with mutual guidance between the spacer element 15 and the adjacent rolling elements 10a, 10b is ensured.
  • the through hole 17 of the spacer element 15 is formed outwardly widened outwardly in the axial direction (see in particular Fig. 3).
  • the rolling elements 10a, 10b in this case tapered rollers
  • the spacer elements 15 in the present case in the form of balls
  • the outer cage discs 13, 14 and the bearing inner rings 4, 5 assembled and subsequently the fixing bolts 12 fixedly connected to the cage discs 13, 14, for example, welded or clipped, with the exact alignment of the fixing bolts 12 is taken into account.
  • the created unit can then be treated as usual, so be completed with the Lagerau junctionrin- 1, 2, 3 and installed.
  • the exemplary embodiment described above is essentially concerned with a spacer element 15 in the form of a sphere.
  • the invention is not limited to such a spherical spacer element 15, but includes all other possible spacer elements 15 with rotationally symmetrical and convexly curved in the axial direction contact surfaces 16, such as barrel-shaped spacer elements 15, which in turn in the recess 18 of the adjacent rolling elements 10a, 10b axially support.
  • spacer element 15 it is also possible, instead of a separately formed spacer element 15 to bring here not shown in detail spacer element 15 for application, which is integrally formed with one of the two axially adjacent rolling elements 10a, 10b and also provided with a through hole 17 with end conical extension.
  • spacer element 15 is then advantageously formed as an end-side peg-shaped bulge of a rolling element 10a or 10b with a rotationally symmetrical outer contour and with a convexly curved contact surface 16 in the axial direction which extends in the recess 18 of the other rolling element 10b and 10a axially as described above.
  • This spacing element 15 in the form of a peg-shaped bulge of one of the two rolling bodies 10a, 10b may, for example, have a hemispherical, spherical-cap-shaped or other rotationally symmetrical outer contour with a contact surface 16 curved convexly in the axial direction.
  • roller bearings particularly focus on four-row tapered roller bearings.
  • the roller bearings can be constructed symmetrically or asymmetrically, if row pairings of the generic type are formed.

Landscapes

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

Abstract

L'invention concerne un palier à rouleaux à plusieurs rangées, comprenant au moins un appairage en rangées de corps de roulement (10a, 10b), en disposition en X, les deux rangées de corps de roulement (6, 8; 8,9) dudit appairage présentant le même nombre de corps de roulement et les mêmes vitesses périphériques autour de l'axe longitudinal du paliers à rouleaux. Les corps de roulement (10a, 10b) de l'appairage roulent sur une bague extérieure de roulement sans bord (1, 2, 3), ainsi que sur une bague intérieure de roulement sans bord (4, 5). Les corps de roulement (10a, 10b) présentent dans chaque cas un alésage de passage (11), ainsi que des corps de palier (10a, 10b) adjacents dans le sens axial, qui sont traversés dans chaque cas par un tourillon de fixation (12) conçu cintré au centre, en adéquation avec la disposition en X des corps de roulement (10a, 10b). L'invention permet de parvenir à une meilleure transmission d'effort axial et à un guidage mutuel des corps de roulement (10a, 10b), en raison de la présence d'un élément écarteur (15) à symétrie de rotation, muni de surfaces de contact (16) convexes dans le sens axial, monté entre les deux corps de roulement (10a, 10b) adjacents dans chaque cas dans le sens axial et également traversé par le tourillon de fixation.
PCT/DE2008/000383 2007-03-09 2008-03-04 Palier à rouleaux à plusieurs rangées WO2008110139A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007011532.8 2007-03-09
DE102007011532A DE102007011532A1 (de) 2007-03-09 2007-03-09 Mehrreihiges Rollenlager

Publications (2)

Publication Number Publication Date
WO2008110139A2 true WO2008110139A2 (fr) 2008-09-18
WO2008110139A3 WO2008110139A3 (fr) 2009-03-12

Family

ID=39677977

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2008/000383 WO2008110139A2 (fr) 2007-03-09 2008-03-04 Palier à rouleaux à plusieurs rangées

Country Status (2)

Country Link
DE (1) DE102007011532A1 (fr)
WO (1) WO2008110139A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10036423B2 (en) 2015-06-26 2018-07-31 Forum Us, Inc. Cage for double-row spherical bearing

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1283713A (en) 1916-07-27 1918-11-05 Skf Svenska Kullagerfab Ab Roller-bearing.
US1410988A (en) 1920-12-13 1922-03-28 John B Birgh Roller bearing
US1418277A (en) 1920-06-07 1922-06-06 John B Birgh Roller bearing

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1790869A (en) * 1931-02-03 Double row ball or roller bearing
US1543039A (en) * 1922-05-23 1925-06-23 Lambert H Vervoort Bearing
US1885852A (en) * 1929-08-13 1932-11-01 Medved Nicholas Double thrust roller bearing
US2398459A (en) * 1944-02-07 1946-04-16 Paul E Province Roller bearing
FR1034570A (fr) * 1950-03-29 1953-07-27 Systèmes de roulements à rouleaux coniques
US6238095B1 (en) * 1999-01-06 2001-05-29 The Timken Company Relieved tapered roller bearing with true rolling contacts

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1283713A (en) 1916-07-27 1918-11-05 Skf Svenska Kullagerfab Ab Roller-bearing.
US1418277A (en) 1920-06-07 1922-06-06 John B Birgh Roller bearing
US1410988A (en) 1920-12-13 1922-03-28 John B Birgh Roller bearing

Also Published As

Publication number Publication date
WO2008110139A3 (fr) 2009-03-12
DE102007011532A1 (de) 2008-09-11

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