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WO2008083651A1 - Système de roulement comprenant un roulement doté d'une bague extérieure et fonctionnant sous précontrainte radiale - Google Patents

Système de roulement comprenant un roulement doté d'une bague extérieure et fonctionnant sous précontrainte radiale Download PDF

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Publication number
WO2008083651A1
WO2008083651A1 PCT/DE2007/002233 DE2007002233W WO2008083651A1 WO 2008083651 A1 WO2008083651 A1 WO 2008083651A1 DE 2007002233 W DE2007002233 W DE 2007002233W WO 2008083651 A1 WO2008083651 A1 WO 2008083651A1
Authority
WO
WIPO (PCT)
Prior art keywords
ring
wedge
rolling bearing
outer ring
bearing device
Prior art date
Application number
PCT/DE2007/002233
Other languages
German (de)
English (en)
Inventor
Gordana Michos
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 WO2008083651A1 publication Critical patent/WO2008083651A1/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
    • 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
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
    • F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
    • 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
    • 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
    • F16C19/36—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 a single row of rollers
    • F16C19/364—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 a single row of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
    • 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
    • F16C19/52—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
    • F16C19/525—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions related to temperature and heat, e.g. insulation

Definitions

  • Rolling bearing device comprising a rolling bearing operated under radial prestress with an outer ring
  • the invention relates to a rolling bearing device comprising a rolling bearing operated under radial prestress with an outer ring.
  • Such a rolling bearing device is used, for example, where a shaft is rotatable relative to a housing to store.
  • a shaft is rotatable relative to a housing to store.
  • this temperature gradient also having an effect on the temperatures of the inner and outer rings, between which a temperature difference is thus likewise given.
  • this temperature difference leads to a change in the set bearing preload, that is, the bearing preload decreases during operation or at a cooling of the rolling bearing unit again.
  • the preload of the bearings is limited by the operating condition.
  • DE 1 813 409 A1 discloses a device for maintaining the axial bearing play in rolling bearing devices, comprising two wedge rings made of different materials which have different coefficients of expansion, that is to say they have a different temperature behavior.
  • the two wedge rings are arranged in the region of the outer ring. Due to the different coefficients of expansion results in a different expansion behavior at a corresponding temperature, which results in an axial movement due to the tapered ring arrangement, from which an axial load of the outer ring is made possible. So here only axial bearing clearance can be varied.
  • the invention is therefore based on the problem to provide a rolling bearing device, which offers the possibility of compensation of thermally induced voltage changes in radially biased or radially loaded bearings.
  • a rolling bearing device of the type mentioned according to the invention for compensating thermally induced changes in the radial bias comprising an axially displaceable on the outer ring of the bearing, axially biased by a clamping element, expandable wedge ring, with its wedge surface on a further annular Wedge surface running, provided.
  • a bias voltage is generated on the outer ring on the expandable wedge ring, which in turn is radially biased with respect to the inner ring.
  • the wedge ring is slotted axially at least once, so it is interrupted at at least one point in the circumferential direction. Conceivable, however, would be an embodiment of a wedge ring made of a correspondingly soft material that allows expansion.
  • the further wedge surface may be provided on a further wedge ring which engages around the outside of the first wedge ring.
  • This further wedge ring is fixed axially and radially, so that the first wedge ring with its wedge surface can slide along the wedge surface of the second wedge ring, wherein it moves axially relative to the outer ring.
  • This housing component may be of any nature, it may be a genuine housing portion, but it may also be a sleeve or the like. In any case, it is a component on which axially protrudes a wedge with a corresponding wedge surface, or on the radially projecting a wedge projecting towards the bearing with a corresponding wedge surface.
  • a third alternative of the invention provides to provide the wedge surface directly on the outer side of the outer ring itself, thus, therefore, to use the bearing ring as a wedge ring guide part.
  • the wedge ring is axially biased by a clamping element.
  • This clamping element can be designed according to a first embodiment of the invention as a spring element. It may be a plate spring, one or more coil springs or one or more leaf springs or the like.
  • the tensioning element can also be designed as an annular disc made of a material with lower rigidity than steel.
  • the tensioning element can also be a piezoelectric actuator or a tensioning element consisting of a shape memory alloy or a hydraulic or pneumatic actuator.
  • a piezoelectric actuator the clamping of the wedge ring by electrical control of this piezoelectric actuator, which changes its shape due to voltage, over which the basic voltage can be built up.
  • a clamping element consisting of a shape memory alloy As a shape memory alloy, for example, a NiTi or a CuZnAI alloy can be used. Such alloys are characterized by the fact that they make a shape change from reaching a certain temperature resulting from a structural change.
  • the outer ring is suitably secured by an anti-rotation, so that it does not rotate with a rotation of the shaft in which the inner ring is entrained.
  • FIG. 1 is a schematic diagram of a rolling bearing device according to the invention of a first embodiment, partly in section,
  • Fig. 2 is a schematic representation of a rolling bearing device according to the invention a second embodiment, partly in section, and
  • Fig. 3 is a schematic representation of a rolling bearing device according to the invention a third embodiment, partly in section.
  • FIG. 1 shows a schematic representation of a Wälzlagerein- direction 1 of a first embodiment. It comprises a roller bearing 2 comprising an inner ring 3 and an outer ring 4, wherein the inner ring 3 is arranged on a shaft 5 axially fixed against a stop point 6 rotatably.
  • the outer ring 4 in turn is rotatably connected via a rotation 7 with a housing 8, so that in a shaft rotation, only the inner ring 3 and the rolling elements 19 move, but not the outer ring 4.
  • the outer ring 4 is in turn arranged in a fixed position in the housing, which has a corresponding housing wall 9 and a cover plate 10, in which also the anti-rotation device 7 is arranged, for example a small dowel pin or the like.
  • a device 11 can be compensated by the thermally induced voltage changes in the radial direction.
  • This device 11 comprises a wedge ring 12 which is arranged axially displaceably on the outer side 13 of the outer ring 4.
  • the wedge ring 12 is slotted axially at least once so that it can widen. With its wedge surface 14 it runs on the wedge surface 15 of a second wedge ring 16, which in turn is received in a fixed position in the housing 8 on a corresponding annular component 17.
  • the two wedge surfaces 14, 15 thus run on each other.
  • the first wedge ring 12 is further biased axially via a clamping element 18, here for example a plate spring, over this it is pressed with its wedge surface 14 against the wedge surface 15.
  • Rolling bearing device 1 in a motor or the like may well be the case, so the inner ring 3 expands, as it is warmer, slightly stronger than the colder outer ring 4. This causes the bias between see inner ring 3 and outer ring 4, which has been set in a defined, cold state of both rings, is increased, this bias, the outer ring 4 would be stored directly radially in the housing, complete would be absorbed by the outer ring 4 and would increase excessively, so that ultimately the wear increases significantly.
  • the increase in bias via the device 11 according to the invention can be compensated or reduced.
  • radially enough to the outer ring 4 is still sufficient space in which the outer ring 4 can expand.
  • the increased bias voltage is now absorbed by the wedge ring 12 and derived therefrom.
  • the load also slightly elongated outer ring 4 due to the expansion of the inner ring 3 is now in turn stretches the first wedge ring 12, which, as slotted, something expands.
  • This radial enlargement causes the wedge surface 14 on the fixed wedge surface 15, starting from the example according to FIG. 1, to slide off to the right, that is to say the wedge ring 12 is pressed against the clamping element 18, compressing it.
  • the spring force is designed so that at a temperature-induced increase in the bias both the spring force and the frictional force between the wedge surfaces 14, 15 and the outside 13 is overcome and it comes to the axial displacement of the wedge ring 12. This shift thus allows the radial expansion of the bearing ring, whereby an overload caused by the temperature increase due to bias increase of the bearing is advantageously avoided.
  • FIG. 2 shows a further embodiment of a roller bearing device 1, which fundamentally corresponds in construction to that of FIG. 1. While 19 cylindrical rollers are shown in Fig. 1 as rolling elements, it is in the rolling bearing 2 in Fig. 2 is a tapered roller bearing. As can be seen, here the rolling elements 19 are designed as oblique rollers, the inner ring 3 and the outer ring 4 have correspondingly executed WälzSystemterrorismmaschinen on. As a result of the change in geometry of the outer ring 4, the anti-rotation 7 is also provided on the other side of the housing 8 here.
  • the device 11 according to the invention for compensating or for reducing the increase in bias resulting from a temperature gradient is comprehensively send the first wedge ring 12 and the second wedge ring 16 with their respective wedge surfaces 14, 15 as well as the clamping element 18 is provided.
  • a radial expansion of the outer ring 4 can take place, after this is made possible by reducing the increase in prestress via the first wedge ring 12 moving axially along the outer side 13 of the outer ring 4.
  • FIG. 3 A further embodiment of a rolling bearing device 1 according to the invention is shown in FIG. 3.
  • the local rolling bearing 2 is a ball bearing, the rolling elements 19 are thus designed spherical.
  • a device 11 is used to reduce or compensate for temperature-induced changes in bias used, but this includes only one wedge ring 12 with its wedge surface 14.
  • the second wedge surface 15 is formed here on the outer side of the outer ring 4. If this results in a temperature-induced expansion of the outer ring 3, so here too the wedge ring 12 slides over the wedge surface 14 which runs on the wedge surface 15, to the right against the restoring force of the clamping element 18, which is compressed.
  • clamping element 18 in the form of a spring or the like, it is also conceivable to load the wedge ring 12, for example, pneumatically or hydraulically, thus biasing it via a pneumatic or hydraulic control.
  • a piezoelectric actuator for generating the Keilringvorschreib or a clamping ring of a shape memory alloy is conceivable.
  • the rolling bearing device allows for the degradation of bias changes generated by a temperature gradient, after allowing this allows the bearing outer ring radially seen slightly widen, while at the same time over the wedge ring a sufficient bias is applied to the bearing outer ring.
  • this arrangement is useful not only with regard to a reduction of bias overshoots, but also to prevent any Slippage, since the rolling bearing, here the outer ring, is always acted upon by the wedge ring with a certain minimum force. Over the wedge ring so a minimum bias is applied continuously, optionally in addition to the system immanent bias.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Support Of The Bearing (AREA)

Abstract

L'invention concerne un système de roulement comprenant un roulement doté d'une bague extérieure et fonctionnant sous précontrainte radiale. Ledit système est caractérisé par un dispositif (11) destiné à compenser des variations d'origine thermique de la précontrainte radiale, lequel dispositif comprend une bague conique (12) pouvant être élargie, précontrainte axialement par le biais d'un élément de tension (18) et pouvant coulisser axialement sur la bague extérieure (4) du roulement (2), bague conique dont la surface inclinée (14) roule sur une autre surface inclinée annulaire (15).
PCT/DE2007/002233 2007-01-12 2007-12-11 Système de roulement comprenant un roulement doté d'une bague extérieure et fonctionnant sous précontrainte radiale WO2008083651A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007001918.3 2007-01-12
DE102007001918A DE102007001918A1 (de) 2007-01-12 2007-01-12 Wälzlagereinrichtung umfassend ein unter radialer Vorspannung betriebenes Wälzlager mit einem Außenring

Publications (1)

Publication Number Publication Date
WO2008083651A1 true WO2008083651A1 (fr) 2008-07-17

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ID=39415414

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2007/002233 WO2008083651A1 (fr) 2007-01-12 2007-12-11 Système de roulement comprenant un roulement doté d'une bague extérieure et fonctionnant sous précontrainte radiale

Country Status (2)

Country Link
DE (1) DE102007001918A1 (fr)
WO (1) WO2008083651A1 (fr)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN101922507A (zh) * 2010-09-21 2010-12-22 上海机床厂有限公司 一种能消除游隙的滚动轴承装置

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Publication number Priority date Publication date Assignee Title
DE102010000891B4 (de) * 2010-01-14 2014-03-06 Koenig & Bauer Aktiengesellschaft Vorrichtungen zur Lagerung von Druckzylindern einer Druckmaschine
WO2011085831A1 (fr) 2010-01-14 2011-07-21 Koenig & Bauer Aktiengesellschaft Dispositifs de support d'un ou de plusieurs cylindres d'une machine à imprimer
DE102012207070A1 (de) 2011-07-28 2013-01-31 Schaeffler Technologies AG & Co. KG Anordnung zur spielfreien Lagerung einer Welle
DE102011082679B4 (de) 2011-09-14 2014-07-03 Koenig & Bauer Aktiengesellschaft Vorrichtung und Verfahren zur Befestigung und/oder Justage einer Lagervorrichtung eines Druckwerkszylinders
DE202013012054U1 (de) * 2012-04-13 2015-02-23 Eolotec Gmbh Lageranordnung einer Windkraftanlage
DE102013210692A1 (de) * 2013-06-07 2014-12-11 Schaeffler Technologies Gmbh & Co. Kg Aktive Lagervorrichtung
DE102019108603A1 (de) * 2019-04-02 2020-10-08 Bayerische Motoren Werke Aktiengesellschaft Vorrichtung zur Kompensation eines unterschiedlichen Wärmeausdehnungsverhaltens
CN112065865B (zh) * 2020-08-24 2022-04-05 河南科技大学 一种热诱导预紧力自补偿机床主轴轴承分离式隔圈
DE102022111286B3 (de) 2022-05-06 2023-06-01 Schaeffler Technologies AG & Co. KG Wälzlageranordnung, elektrische Maschine und Getriebeanordnung

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DE1813409A1 (de) 1967-12-07 1969-07-03 Skf Svenska Kullagerfab Ab Einrichtung zur Aufrechterhaltung des axialen Lagerspiels bei Waelzlagereinbauten
US4727970A (en) * 1984-06-12 1988-03-01 Luk Lamellen Und Kupplungsbau Gmbh Torque transmitting and torsion damping apparatus for use in motor vehicles

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1813409A1 (de) 1967-12-07 1969-07-03 Skf Svenska Kullagerfab Ab Einrichtung zur Aufrechterhaltung des axialen Lagerspiels bei Waelzlagereinbauten
US4727970A (en) * 1984-06-12 1988-03-01 Luk Lamellen Und Kupplungsbau Gmbh Torque transmitting and torsion damping apparatus for use in motor vehicles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101922507A (zh) * 2010-09-21 2010-12-22 上海机床厂有限公司 一种能消除游隙的滚动轴承装置

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