WO2008116707A1 - Palier à roulement radial - Google Patents

Palier à roulement radial Download PDF

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Publication number
WO2008116707A1
WO2008116707A1 PCT/EP2008/052015 EP2008052015W WO2008116707A1 WO 2008116707 A1 WO2008116707 A1 WO 2008116707A1 EP 2008052015 W EP2008052015 W EP 2008052015W WO 2008116707 A1 WO2008116707 A1 WO 2008116707A1
Authority
WO
WIPO (PCT)
Prior art keywords
rolling
radial
bearing according
pins
pin
Prior art date
Application number
PCT/EP2008/052015
Other languages
German (de)
English (en)
Inventor
Christian Hoffinger
Michael Bogner
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 WO2008116707A1 publication Critical patent/WO2008116707A1/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
    • F16C19/24—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
    • 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
    • F16C25/00—Bearings for exclusively rotary movement adjustable for wear or play
    • F16C25/06—Ball or roller bearings
    • F16C25/08—Ball or roller bearings self-adjusting
    • 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
    • F16C33/4688—Cages for rollers or needles with rolling elements with smaller diameter than the load carrying rollers, e.g. cages with counter-rotating spacers
    • 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
    • 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
    • F16C2300/00—Application independent of particular apparatuses
    • F16C2300/02—General use or purpose, i.e. no use, purpose, special adaptation or modification indicated or a wide variety of uses mentioned

Definitions

  • the invention relates to a radial rolling bearing, which consists of at least one outer bearing ring with an outer raceway and an inner raceway and a plurality of rolling elements arranged therebetween, which roll with their running surfaces on the raceways, wherein to avoid slip on axially outside the WälzSystemstirn vom with the rolling elements connected pin clamping elements act.
  • a radial roller bearing that uses resilient rolling elements in the form of a helical spring, so that the bearing is preloaded in the radial direction.
  • the disadvantage here is that such spring-like rolling elements can be produced only in a very complex manner and also there is a risk of Tribokorrosion within the spring.
  • JP 032 778 09 A1 Another type of elastic rolling elements is previously known from JP 032 778 09 A1.
  • This bearing is characterized in that at least one circumferential point a rolling body is arranged made of a plastic.
  • rolling elements made of plastic and steel might be a disadvantage that the carrying capacity of such a bearing is considerably limited by the plastic rolling elements used.
  • each rolling element is pressed simultaneously to the outer and to the inner raceway, so that they must assume a tilted position.
  • This tilting in turn requires that no linear contact of the rolling elements on the raceways, but only a punk-shaped is realized. It may therefore be doubted whether an effective slip reduction can be achieved with this point-only system.
  • the tensioning element is a band that has to be prestressed via a complicated and thus complex spring mechanism.
  • the invention is therefore based on the object to provide a generic radial rolling bearing, which reliably prevents the sliding friction between the rolling elements on the one hand and the raceways on the other hand.
  • this object is achieved by the characterizing part of claim 1 in conjunction with the preamble thereof in that the clamping elements on both sides of each pin of a rolling element act in the same direction radially outward or radially inward, but in the circumferential direction but alternately act radially outward and radially inward.
  • the advantage of the solution according to the invention consists essentially in the fact that without affecting the load rating, the rolling elements are continuously driven via a frictional connection between these and the raceways and thus show no slip outside the load zone. Characterized in that a rolling element is pressed with its entire length extension to the outer raceway and the next rolling element with its entire length extension to the inner raceway, in contrast to the previous generic prior art, a linear contact of lateral surface of the rolling elements and the respective raceways realized, so that under all conditions slip-free, which leads to a significant increase in the service life of the bearing assembly.
  • the clamping element is a belt which is supported on both sides of the pin and acting on the pins of successive rolling elements alternately inside and outside of the pitch circle.
  • Such endless belts are available as inexpensive purchased parts in various sizes on the market.
  • a preferred embodiment of the invention provides that the rolling elements have integrally formed pins on their end faces, wherein roller bearings are arranged according to an additional further feature between the pin on the one hand and the clamping element on the other hand to reduce the friction.
  • each rolling element is provided with a central bore into which a bolt projecting beyond the rolling body end faces is inserted. Also in this case it has become Reduction of the friction proved to be advantageous if, on the other hand rolling bearings are arranged between the bolt on the one hand and the central bore of each rolling element.
  • the clamping element should be a disk-shaped ring, which is connected on both sides with the pins, wherein the guide plates connected to the pins have receiving bores for the pins.
  • adjacent guide plates are elastically connected to each other by a radially outer web and a radially inner web are circumferentially offset from each other, the webs meander with each other and with the guide plates via radially extending side parts are connected.
  • the guided through the disc-shaped ring individual rolling elements are alternately pressed against the outer raceway or to the inner race, so that even outside the load zone, despite the presence of a possible bearing clearance for constant contact between the rolling elements and the raceways is taken care of. Due to the resulting bias voltage slippage of the rolling elements is reliably avoided even in a non-loaded zone.
  • FIG. 1 shows a longitudinal section through a radial rolling bearing with a first variant according to the invention
  • FIG. 2 shows a side view of FIG. 1
  • Figure 3 is a perspective view of the bearing according to
  • FIG. 1 A first figure.
  • FIG. 4 shows a longitudinal section through a radial rolling bearing with a second variant according to the invention
  • FIG. 5 is a side view of FIG. 4,
  • Figure 5a shows an enlarged view of a section
  • FIG. 5b a representation of two rolling elements in the load range
  • Figure 5c is a representation of two rolling elements in the unloaded area
  • Figures 6 and 7 is an enlarged view of a single cylindrical rolling element.
  • the radial roller bearing according to FIGS. 1, 2 and 3 consists of the bearing outer ring 1, which is provided on both sides with radially inwardly directed ribs 2, 3 and provides the outer raceway for the cylindrical rolling bodies 4.
  • the associated inner race is provided by the bordhom bearing inner ring 5, wherein the two bearing rings 1, 5 are arranged concentrically with each other to the bearing axis 6.
  • Each individual rolling element 4 is provided on its front side with a respective pin 7, which are formed by a bolt 22 which penetrates the rolling element 4 completely beyond the end faces.
  • the belt 8 engages on both sides on the journal 7 radially inside the pitch circle T and presses the rolling body 4 against the bearing outer ring 1, while the belt 8 engages the next rolling element 4 on the pin 7 outside the pitch circle T and the rolling element 4 presses against the bearing inner ring 5.
  • a rolling element 4 is pressed against the outer raceway and the next rolling elements 4 in the circumferential direction against the inner raceway. This ensures that all rolling elements 4 are pressed outside the load zone against one of the two raceways, so that slippage is prevented even in this area.
  • this is provided with a continuous central bore 12 in which a bolt 22 is received over two spaced rolling bearings 11, the two ends of which form the pins 7.
  • the rolling bearings 11 are formed as a combined cylindrical roller and ball bearings.
  • At both ends of the pin 22 and the pin 7 is connected to a respective steel bushing 10 whose diameter is different, so that with the help of this steel bushing 10 can be acted upon the tension of the belt 8.
  • a single rolling element 4 is shown, the outer race is provided by the bearing outer ring 1 and the inner raceway is formed by a shaft 13.
  • the rolling element 4 is provided at its two end faces with integrally formed pins 9, which in turn are surrounded on both sides by a rolling bearing 14.
  • the second variant of the invention shown in Figures 4, 5 and 5a differs from the first variant of the invention shown in Figures 1 to 3 only in that instead of a belt 8, a disc-shaped ring 15 is used as a clamping element.
  • this disk-shaped ring 15 consists of the guide plate 16, which is connected to the pin 7.
  • the two adjacently arranged guide plates 16 are arranged in the radial direction spaced from each other and offset from each other webs 17, 18, which in turn hold on the side members 19 and 21 in contact with each other. This ensures that, on the one hand, such a disk-shaped ring 15 also has a certain elasticity in the circumferential direction and, on the other hand, that the cylindrical rolling elements 4 are pressed alternately against the outer raceway and against the inner raceway.
  • the rolling elements 4 are arranged with the associated pin 7 without clamping element between the two bearing rings 1 and 5 for reasons of simplicity.
  • the load zone shown in FIG. 5 b shows that in this area the rolling elements 4 both have contact with the raceway of the bearing outer ring 1 and with the raceway of the bearing inner ring 5.
  • the rolling elements 4 rotate on the raceways of the bearing rings without sliding, ie, the rolling bearing has an optimal kinematic operating condition without slippage. So that this kinematically optimal operating state is maintained even outside the load zone, which is shown in Figure 5c, the rolling elements 4 are alternately pressed by the clamping elements 8, 15, not shown, to the outer race or to the inner race, as the accompanying arrows illustrate.

Landscapes

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

Abstract

Palier à roulement radial qui est composé d'au moins une bague extérieure de roulement (1) pourvue d'une piste extérieure de roulement et d'une piste intérieure de roulement, ainsi que d'une pluralité de corps de roulement (4) situés entre les deux pistes et roulant par leur surface de roulement sur les pistes de roulement, des éléments tendeurs agissant sur des chevilles reliées aux corps de roulement (4) axialement à l'extérieur des faces frontales des corps de roulement pour éviter le glissement. La solution selon la présente invention se caractérise en ce que les éléments tendeurs (8, 15) agissent des deux côtés sur chaque cheville individuelle (7, 9) d'un corps de roulement (4) dans le même sens, radialement vers l'intérieur ou radialement vers l'extérieur, mais en alternance radialement vers l'extérieur et radialement vers l'intérieur dans le sens périphérique.
PCT/EP2008/052015 2007-03-23 2008-02-19 Palier à roulement radial WO2008116707A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007013942.1 2007-03-23
DE102007013942A DE102007013942A1 (de) 2007-03-23 2007-03-23 Radialwälzlager

Publications (1)

Publication Number Publication Date
WO2008116707A1 true WO2008116707A1 (fr) 2008-10-02

Family

ID=39684277

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/052015 WO2008116707A1 (fr) 2007-03-23 2008-02-19 Palier à roulement radial

Country Status (2)

Country Link
DE (1) DE102007013942A1 (fr)
WO (1) WO2008116707A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013215839A1 (de) 2013-08-12 2015-03-05 Schaeffler Technologies AG & Co. KG Wälzlager
DE102013215899A1 (de) 2013-08-12 2015-02-12 Schaeffler Technologies Gmbh & Co. Kg Wälzlager
DE102013215848A1 (de) 2013-08-12 2015-02-12 Schaeffler Technologies Gmbh & Co. Kg Wälzlager
DE102016005777B4 (de) * 2016-05-11 2017-12-14 Nikolai Ustinow Zylinderrollenlager ohne Oberflächenkontaktreibung
DE102021002000B3 (de) 2021-04-16 2022-07-21 Energietechnik Spreter GmbH Trenntoilette mit Absaugleitung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1389385A (en) * 1921-08-30 Roller-bearing
US3545830A (en) * 1969-03-14 1970-12-08 Gen Motors Corp High speed roller bearing with epicyclic cage preload
DE3123323A1 (de) * 1981-06-12 1983-01-05 FAG Kugelfischer Georg Schäfer & Co, 8720 Schweinfurt Vollrolliges lager
DE3216010A1 (de) * 1982-04-29 1983-11-10 INA Wälzlager Schaeffler KG, 8522 Herzogenaurach Waelzlager mit um eine achse rotierenden waelzkoerpern
US5281036A (en) * 1992-10-30 1994-01-25 The Torrington Company Spring loaded bearing retainer

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE624685C (de) * 1936-01-25 Eisenwerke A G Deutsche Rollenkorb
DE532050C (de) * 1931-08-20 Weking & Co G M B H I Rollenkorb
DE372145C (de) * 1923-03-22 Julius Wessel Rollenkorb
DE511985C (de) 1930-01-24 1930-11-04 Siemens Schuckertwerke Akt Ges Geraeuschloses Waelzlager
FR2076180A1 (fr) * 1970-01-05 1971-10-15 Patin Pierre Perfectionnement apporté aux roulements anti-friction et ses applications, notamment en convoyage.
US3930693A (en) 1970-05-22 1976-01-06 The Torrington Company Full complement bearing having preloaded hollow rollers
DE2903200A1 (de) * 1979-01-27 1980-07-31 Otto Fax Waelzlager, insbesondere zur lagerung eines koerpers mit grossem durchmesser
JPH03277809A (ja) 1990-03-24 1991-12-09 Ntn Corp 揺動軸受

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1389385A (en) * 1921-08-30 Roller-bearing
US3545830A (en) * 1969-03-14 1970-12-08 Gen Motors Corp High speed roller bearing with epicyclic cage preload
DE3123323A1 (de) * 1981-06-12 1983-01-05 FAG Kugelfischer Georg Schäfer & Co, 8720 Schweinfurt Vollrolliges lager
DE3216010A1 (de) * 1982-04-29 1983-11-10 INA Wälzlager Schaeffler KG, 8522 Herzogenaurach Waelzlager mit um eine achse rotierenden waelzkoerpern
US5281036A (en) * 1992-10-30 1994-01-25 The Torrington Company Spring loaded bearing retainer

Also Published As

Publication number Publication date
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