WO2008071503A1 - Palier à roulement radial à rangées multiples - Google Patents

Palier à roulement radial à rangées multiples Download PDF

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Publication number
WO2008071503A1
WO2008071503A1 PCT/EP2007/061966 EP2007061966W WO2008071503A1 WO 2008071503 A1 WO2008071503 A1 WO 2008071503A1 EP 2007061966 W EP2007061966 W EP 2007061966W WO 2008071503 A1 WO2008071503 A1 WO 2008071503A1
Authority
WO
WIPO (PCT)
Prior art keywords
row
bearing
kalottenkugeln
balls
rolling
Prior art date
Application number
PCT/EP2007/061966
Other languages
German (de)
English (en)
Inventor
Thorsten Biermann
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 WO2008071503A1 publication Critical patent/WO2008071503A1/fr

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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
    • F16C33/34—Rollers; Needles
    • F16C33/36—Rollers; Needles with bearing-surfaces other than cylindrical, e.g. tapered; with grooves in the bearing surfaces
    • 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
    • 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
    • F16C19/49—Bearings with both balls and rollers

Definitions

  • the invention relates to a multi-row radial rolling bearing according to the preamble-forming features of claim 1, which is particularly advantageously used as a replacement for multi-row groove or angular contact ball bearings.
  • Multi-row radial rolling bearings are always used in machine or vehicle construction where extremely high forces have to be transmitted to support shafts or hubs with axial and radial moment load. If the power transmission also occurs at high speeds and / or under a plurality of pressure angles acting differently, multi-row corrugated or angular contact ball bearings are generally used to support the shafts or hubs.
  • Such multi-row groove or angular contact ball bearings for example, from the FR 647 182 and DE 84 15 873 U1 and from the FR 206 606 previously known and consist essentially of a one- or multi-part outer bearing ring and a single or multi-part inner bearing ring and a Variety between the bearing rings in several rows of juxtaposed bearing balls, which are usually held by one or more bearing cages in the circumferential direction at regular intervals and with their running surfaces on several adjacent to each other on the inside of the outer bearing ring and on the outside of the inner bearing ring angeordne- th raceways roll.
  • the raceways of the ball rollers in this case have mutually parallel pressure angle axes and are arranged adjacent to each other such that the respective adjacent ball rollers of each row with their mutually facing side surfaces lead each other.
  • a tapered roller bearing thus also features designs with more than two rows of rolling elements due to a minimized axial and radial installation space with the same or increased load-bearing capacity and similar manufacturing costs as a comparable angular contact ball bearing.
  • the invention is therefore based on the object to design a multi-row radial rolling bearing, which like comparable radial ball bearings has the possibility of adjusting the pressure angle axes of the individual rows of rolling on differently acting radial and axial forces, itself however, characterized by a reduced axial and radial installation space and by a prolonged service life at the same or increased load capacity.
  • this object is achieved in a multi-row radial rolling bearing according to the preamble of claim 1 such that the rolling elements of the individual rows of the radial roller bearing are formed by a series or crosswise combination of Kalottenkugeln and solid balls or exclusively by Kalottenkugeln and are arranged to each other that the with at least one Kalottenverianaung formed in their spherical contour Kalottenkugeln with their Kalottenveriana aus in each case an axial receptacle for form a part of the spherical contour of a trained as a solid ball or as a further Kalottenkugel rolling elements of an adjacent row and thereby having ball joint-like abutting rolling elements of all rows have a minimized Gesamaxialerstreckung.
  • the invention is thus based on the finding that it is possible by a series or crosswise combination of geometrically adapted Kalottenkugeln and solid balls or only by such Kalottenkugeln as novel rolling elements to arrange the individual rows of Radialmélzlagers on axially narrowest space directly next to each other and thus a
  • To provide multi-row radial roller bearing with extremely reduced axial and radial installation space, which has the same or higher load capacity as comparable radial ball bearings and as well as this is characterized by the possibility of adjusting the pressure angle axes of the individual rows of rolling on differently acting radial and axial forces.
  • the ball joint interlocking rolling elements are mutually supported in such an arrangement and thus take over even a partial function of the bearing cage.
  • the rolling elements formed by Kalottenkugeln are formed as one-sided or as two-sided Kalottenkugeln either flattened one of its spherical base side surface or two flattened from their basic spherical shape, mutually parallel side surfaces with each having a molded in it centric Kalottenverianaung.
  • the one-sided Kalottenkugeln thus represent unbalanced rolling elements, which form each with their Kalottenverianaung the receptacle for the spherical contour of an adjacent solid sphere or another adjacent unilateral Kalottenkugel, while the two-sided Kalot- tenkugeln represent symmetrical rolling elements, which form with their opposite Kalottenveriana aus the recording for the spherical contours of two adjacent solid spheres or two adjacent one-sided Kalottenkugel.
  • a further feature of the invention formed multi-row radial rolling bearing that the Kalottenverianaonneus in the side surfaces of the Kalottenkugeln at least approximately the same radius as the rolling elements of each adjacent row and having a maximum depth of 10% 30% of the diameter of their ball basic shape are formed.
  • the formation of the Kalottenveriana with the same radius as the rolling elements of each adjacent row has been found to be advantageous in terms of avoiding unnecessary friction between the adjacent rolling elements, the diameter of the rolling elements of the adjacent rows are in addition each tuned to each other so that The speed of the bearing cage in all rows is approximately equal.
  • a particularly advantageous embodiment of the inventively embodied radial rolling bearing is furthermore to form the rolling elements by a row-wise combination of Kalottenkugeln and solid balls.
  • a three-row bearing design is therefore proposed according to claims 4 and 5, in which such a combination consists for example of a complete middle row of solid balls and two complete outer rows of unilateral calotte balls.
  • the mutually facing Kalottenveriana are in the one-sided Kalottenkugeln the outer rows each formed as an axial receptacle for a part of the spherical contour of the arranged between these solid balls of the middle row, so that each three adjacent rolling elements of each row are arranged in this arrangement in a pocket of a common bearing cage and in addition to the guide through this bearing cage lead each other.
  • the number of rolling element rows arranged in this way can be further extended by first connecting a further row of two-sided spherical balls to one of the outer rows formed by one-sided spherical balls, which then again a series of single-sided spherical balls or solid balls and so on continues.
  • the Kalottenveriana the Kalottenkugeln the first outer row are each formed as an axial receptacle for a part of the spherical contour of these arranged adjacent Kalottenkugeln the middle row, while the Kalottenveriana Kalottenkugeln the middle row turn the axial recording for a part of the spherical contour arranged next to them Representing calotte balls of the second outer row.
  • the number of WälzSystem-2n arranged in this way beyond this also expandable here, by joining one or more other rows of unilateral Kalottenkugeln to one of the outer rows formed by one-sided Kalottenkugeln.
  • claims 10 and 11 also propose a fourth embodiment of the radial roller bearing designed according to the invention, in which the rolling bodies are preferably formed by a crosswise combination of calotte balls and solid balls.
  • a combination may consist, for example, of a central row with alternately arranged two-sided calotte balls and solid balls, which is adjacent on both sides by two outer rows of alternately arranged solid balls and unilateral calotte balls in a three-row bearing design.
  • the rolling elements of the individual rows are arranged with their Kalottenveriana each other such that alternately a two-sided Kalottenkugel with two solid balls and a solid ball with two single-sided Kalottenkugeln axially adjacent each other in successive pockets of a common Lagerkarfigs are arranged and in addition to the leadership through this bearing cage mutually to lead.
  • this combination it is also possible with this combination to expand the number of rolling element rows designed in this way by fitting a geometrically appropriate one to each rolling element of one of the outer rows Rolling followed by another row.
  • the inventively designed radial roller bearing in all the described embodiments thus compared to the known from the prior art multi-row radial rolling bearings on the advantage that it by using novel, designed as one and two-sided Kalottenkugeln rolling elements optionally in combination with known solid balls as comparable radial ball bearings Possibility of adjusting the pressure angle axes of the individual rows of rolling elements has differently acting radial and axial forces, but is characterized by a significantly reduced axial and radial installation space and extended life with the same or increased capacity.
  • FIG. 1 shows an enlarged partial view of a cross section through a first embodiment of an inventively designed multi-row radial rolling bearing
  • FIG. 1 a shows an enlarged partial view of the plan view of the rolling elements arranged in the bearing cage of the multi-row radial rolling bearing according to the invention designed according to FIG. 1;
  • Figure 2 is an enlarged partial view of a cross section through a second embodiment of an inventively designed multi-row radial rolling bearing;
  • 2a shows an enlarged partial view of the plan view of the arranged in the bearing cage rolling elements of the invention formed multi-row radial rolling bearing according to Figure 2;
  • Figure 3 is an enlarged partial view of a cross section through a third embodiment of an inventively designed multi-row radial rolling bearing
  • FIG. 3a shows an enlarged partial view of the plan view of the rolling bodies arranged in the bearing cage of the multi-row radial rolling bearing according to the invention designed according to FIG. 3;
  • Figure 4 is an enlarged partial view of a cross section through a fourth embodiment of an inventively designed multi-row radial rolling bearing
  • FIG. 4a shows an enlarged partial view of the plan view of the arranged in the bearing cage rolling elements of the invention formed multi-row radial rolling bearing according to Figure 4.
  • FIGS. 1 to 4 respectively show a radial roller bearing 1 designed as a three-row angular rolling bearing, which essentially consists of a one-piece outer bearing ring 2 and a one-piece inner bearing ring 3 and of a plurality between the bearing rings 2, 3 in three rows 4, 5 , 6 arranged side by side rolling elements.
  • the rolling elements of all three rows 4, 5, 6 have hinted each other slightly different diameters and are clearly visible on different sized TeN- circles and not shown in the drawings, different pressure angle axes arranged.
  • the rolling elements of all rows 4, 5, 6, with their running surfaces then roll to three side by side on the inner side 8 of the outer bearing ring 2 and on the outer side 9 of the inner Bearing ring 3 arranged raceways 10, 11, 12 and are held by a common bearing cage 7 in the circumferential direction at regular intervals to each other.
  • calotte balls 13, 14 are, as can be seen in particular FIGS. 1a and 2a, formed either as unilateral calotte balls 13 or as two-sided calotte balls 14, which either flatten one of their spherical base side surface 18 or two from their spherical base shape, Side surfaces 18, 19, which are arranged parallel to one another and each have a centric concave recess 16, 17 formed therein.
  • the Kalottenveriana 16, 17 in the side surfaces 18, 19 of the Kalottenkugeln 13, 14 have, as indicated in the drawings, the same radius r as the rolling elements of each adjacent row 4, 5, 6 and are formed with a maximum depth t , which corresponds to about 10% to 30% of the diameter of their ball basic shape.
  • a preferred embodiment of the radial roller bearing 1 according to the invention is to form the rolling elements by a row-by-row combination of spherical balls 13, 14 and solid balls 15.
  • a first embodiment of the radial roller bearing 1 is shown in which this combination comprises a complete middle row 5 of solid balls 15 and of two complete balls.
  • Pletten outer rows 4, 6 consists of unilateral calotte balls 13.
  • the mutually facing Kalottenveriana 16 in the one-sided Kalottenkugeln 13 of the outer rows 4, 6 are each formed as an axial receptacle for a part of the spherical contour of the arranged between these solid balls 15 of the middle row 5, so that in each case three adjacent rolling elements from each row 4, 5, 6 in this arrangement, as shown in Figure 1 a, in a pocket 20 of the common bearing cage 7 are arranged mutually leader.
  • the row-wise combination of Kalottenkugeln 14 and solid balls 15, however, is formed by a complete central row 5 of two-sided Kalottenkugeln 14 and two complete outer rows 4, 6 of solid balls 15.
  • the two Kalottenveriana 16, 17 in the two-sided Kalottenkugeln 14 of the middle row 5 are again clearly visible each formed as an axial receptacle for a part of the spherical contour of these arranged adjacent solid balls 15 of the outer rows 4, 6, so that in each case three adjacent rolling elements each row 4, 5, 6 in this arrangement, as shown in Figure 2a, in a pocket 20 of a common bearing cage 7 are arranged mutually leader.
  • the illustrated in Figures 3 and 3a third embodiment of the radial bearing 1 according to the invention shows a rolling element exclusively formed by Kalottenkugeln 13, in which all three rows 4, 5, 6 completely consist of one-sided Kalottenkugeln 13 and again three adjacent Kalottenkugeln 13 from each row 4, 5, 6 are arranged in a pocket 20 of the common bearing cage 7 mutually leader.
  • the dome depressions 16 of the dome balls 13 of the first outer row 4 in each case form the axial receptacle for a part of the ball contour of the calotte balls 13 of the middle row 5 arranged next to them, while the dome depressions 16 of the spherical balls 13 of the middle row 5 again form an axial receptacle formed for a part of the spherical contour of the arranged next to these Kalottenkugeln 13 of the second outer row 6 are.
  • FIGS. 4 and 4 a show an alternative fourth embodiment of the radial bearing 1 according to the invention, in which the rolling elements are formed by a crosswise combination of spherical balls 13, 14 and solid balls 15.

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

Abstract

L'invention concerne un palier à roulement radial à rangées multiples (1), lequel se compose essentiellement d'une bague de roulement externe à une ou plusieurs parties (2) et d'une bague de roulement interne en une ou plusieurs parties (3) ainsi que d'une pluralité de corps de roulement disposés les uns à côté des autres sur plusieurs rangées (4, 5, 6) entre les bagues de roulement (2, 3), lesquels sont maintenus à distance régulière les uns des autres en direction périphérique grâce à au moins une cage de roulement (7) et qui roulent avec leurs surfaces de roulement sur plusieurs voies de roulement (10, 11, 12) disposées côte à côte sur le côté intérieur (8) de la bague de roulement externe (2) et sur le côté externe (9) de la bague de roulement interne (3). Selon l'invention, les corps de roulement des rangées individuelles (4, 5, 6) du palier à roulement radial (1) sont formés par une combinaison de rangée ou croix de boules à calottes (13, 14) et de boules pleines (15) ou exclusivement par des boules à calottes (13), et sont disposés les uns par rapport aux autres de manière à ce que les boules à calottes (13, 14) formées avec au moins un renfoncement de calotte (16) de leur contour de boule forment, avec leurs renfoncements de calotte, (16, 17) respectivement un logement axial pour une partie de contour de boule d'un corps de roulement réalisé en tant que boule pleine (15) ou en tant qu'autre boule à calottes (13) d'une rangée voisine (4, 5, 6) et que les corps de roulement reposant ainsi les uns contre les autres à la manière d'une articulation à rotule de toutes les rangées (4, 5, 6) présentent une étendue axiale globale minimisée.
PCT/EP2007/061966 2006-12-15 2007-11-07 Palier à roulement radial à rangées multiples WO2008071503A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006059183.9 2006-12-15
DE200610059183 DE102006059183A1 (de) 2006-12-15 2006-12-15 Mehrreihiges Radialwälzlager

Publications (1)

Publication Number Publication Date
WO2008071503A1 true WO2008071503A1 (fr) 2008-06-19

Family

ID=38969577

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/061966 WO2008071503A1 (fr) 2006-12-15 2007-11-07 Palier à roulement radial à rangées multiples

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DE (1) DE102006059183A1 (fr)
WO (1) WO2008071503A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014205409B4 (de) * 2014-02-20 2017-11-30 Schaeffler Technologies AG & Co. KG Wälzlageranordnung und Radlager

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR647182A (fr) 1927-06-03 1928-11-21 Cie Applic Mecaniques Coussinet à plus de deux rangées de billes
DE2200103A1 (de) * 1971-01-05 1972-09-07 Secr Defence Brit Waelzlager
DE8415873U1 (de) 1984-08-16 Elges, Helmut, 4800 Bielefeld Wälzlager
DE102005009921A1 (de) 2005-03-04 2006-09-07 Schaeffler Kg Hochgeschwindigkeitsloslager, insbesondere zur Lagerung der Hauptspindel einer Werkzeugmaschine
DE102005014556A1 (de) 2005-03-31 2006-10-05 Schaeffler Kg Radialwälzlager, insbesondere einreihiges Rillenkugellager

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US984855A (en) * 1910-11-14 1911-02-21 Arthur H Schaffnit Ball-bearing caster-roller.
US1149542A (en) * 1914-06-08 1915-08-10 Frederick H Risley Combined roller and ball bearing.
US1180586A (en) * 1915-05-24 1916-04-25 William F Huther Roller-bearing.
US2862773A (en) * 1954-10-14 1958-12-02 C H Keesling Bearing element
JP3799555B2 (ja) * 2003-12-04 2006-07-19 博 寺町 玉ころ転動体

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8415873U1 (de) 1984-08-16 Elges, Helmut, 4800 Bielefeld Wälzlager
FR647182A (fr) 1927-06-03 1928-11-21 Cie Applic Mecaniques Coussinet à plus de deux rangées de billes
DE2200103A1 (de) * 1971-01-05 1972-09-07 Secr Defence Brit Waelzlager
DE102005009921A1 (de) 2005-03-04 2006-09-07 Schaeffler Kg Hochgeschwindigkeitsloslager, insbesondere zur Lagerung der Hauptspindel einer Werkzeugmaschine
DE102005014556A1 (de) 2005-03-31 2006-10-05 Schaeffler Kg Radialwälzlager, insbesondere einreihiges Rillenkugellager

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Publication number Publication date
DE102006059183A1 (de) 2008-06-19

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