EP2094982A1 - Radialwälzlager, insbesondere zur lagerung von wellen in windkraftgetrieben - Google Patents
Radialwälzlager, insbesondere zur lagerung von wellen in windkraftgetriebenInfo
- Publication number
- EP2094982A1 EP2094982A1 EP07817792A EP07817792A EP2094982A1 EP 2094982 A1 EP2094982 A1 EP 2094982A1 EP 07817792 A EP07817792 A EP 07817792A EP 07817792 A EP07817792 A EP 07817792A EP 2094982 A1 EP2094982 A1 EP 2094982A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bearing
- rolling elements
- rolling
- radial
- hollow rollers
- 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.)
- Ceased
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
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/70—Bearing or lubricating arrangements
-
- 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
- F16C19/50—Other types of ball or 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
- F16C27/00—Elastic or yielding bearings or bearing supports, for exclusively rotary movement
- F16C27/04—Ball or roller bearings, e.g. with resilient rolling bodies
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/50—Bearings
- F05B2240/54—Radial 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
- F16C2360/00—Engines or pumps
- F16C2360/31—Wind motors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Definitions
- the invention relates to a radial rolling bearing according to the preamble of forming features of claim 1, and it is particularly advantageous to at least temporarily under very light loads running bearings, such as the storage of waves in wind power transmissions, realized.
- FR 2 479 369 therefore a generic radial rolling bearing has been proposed, which consists essentially of an outer bearing ring with an inner raceway and a coaxial with this arranged inner bearing ring with an outer raceway and from a variety between the bearing rings on their careers rolling and by a bearing cage in the circumferential direction at regular intervals held each other rolling elements, in which to avoid the described slip effect and the resulting disadvantages between the rolling elements and the bearing rings several evenly distributed on the circumference rolling elements are replaced by hollow rollers.
- These hollow rollers which are also slightly shorter than the rest of the rolling elements, have a slightly larger diameter and a smaller modulus of elasticity than the other rolling elements. per, so that they have a constant contact with the bearing rings in the load-free state of the radial roller bearing and thus ensure a steady drive of the bearing cage and thus the other rolling elements with kinematic speed.
- the invention is therefore based on the object, a radial rolling bearing, in particular special for the storage of waves in wind power transmissions to design, which is under the greatest extent retaining its original features, such as load capacity, space and life, to prevent slippage between the rolling elements and the bearing rings is equipped with hollow rollers, which withstand the bearing loads occurring at any time and an overload avoid the remaining rolling elements and thus increase the service life of the radial roller bearing.
- this object is achieved in a radial roller bearing according to the preamble of claim 1 such that the hollow rollers have the same or approximately the same load-bearing capacity as the other rolling elements by a defined design of its inner diameter relative to its outer diameter in the design point of the radial roller bearing.
- the invention is thus based on the finding that it is already possible by targeted interpretation of the ratio between the inner diameter and the outer diameter of the hollow rollers, both to avoid the peak loads on the hollow rollers themselves and the premature wear of the remaining rolling elements and thus the load capacity and to significantly increase the life of such radial rolling bearings.
- the hollow rollers when the hollow rollers have the same axial length as the other rolling elements and the size of its inner diameter between 60% and 80%, preferably 70 ⁇ 3%, the size of its outer diameter is.
- the design of the hollow rollers with the same axial length as the other rolling elements is thereby a further contribution to approximating the load capacity of the hollow rollers to the load capacity of the other rolling elements of the radial rolling bearing, while the size ih- Res inner diameter of 70 ⁇ 3% of the size of its outer diameter is an optimum in terms of all occurring in continuous operation of the radial rolling bearing load conditions.
- the inventively embodied radial roller bearing thus has the advantage over the known from the prior art radial rolling bearings that it is equipped with largely retaining its original performance characteristics, such as load capacity, space and life, to prevent slippage between the rolling elements and the bearing rings with hollow rollers which by a targeted adjustment of the ratio between its inner diameter and its outer diameter to withstand the bearing loads occurring at any time and at the same time avoid overloading of the remaining Wälz- body.
- These advantages also occur when the rolling elements are not guided by a bearing cage, but lead themselves as in full complement bearings.
- FIG. 1 shows a side view of a radial rolling bearing designed according to the invention
- FIG. 2 shows the cross-section A - A through the radial rolling bearing according to FIG. 1 designed according to the invention. Detailed description of the drawings
- the hollow rollers 8 are continuing in accordance with the invention by a defined design its inner diameter d ⁇ with respect to its outer diameter d A in the design point of the radial rolling bearing 1 with the same or approximately the same load capacity as the other rolling elements 6 is formed.
- the hollow rollers 8 have the same axial length as the other rolling elements 6 and the size of its inner diameter d ⁇ preferably 70 ⁇ 3%, the size of its outer diameter d A.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Rolling Contact Bearings (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006055029A DE102006055029A1 (de) | 2006-11-22 | 2006-11-22 | Radialwälzlager, insbesondere zur Lagerung von Wellen in Windkraftgetrieben |
PCT/DE2007/002069 WO2008061503A1 (de) | 2006-11-22 | 2007-11-15 | Radialwälzlager, insbesondere zur lagerung von wellen in windkraftgetrieben |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2094982A1 true EP2094982A1 (de) | 2009-09-02 |
Family
ID=39156540
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07817792A Ceased EP2094982A1 (de) | 2006-11-22 | 2007-11-15 | Radialwälzlager, insbesondere zur lagerung von wellen in windkraftgetrieben |
Country Status (5)
Country | Link |
---|---|
US (1) | US20100014797A1 (de) |
EP (1) | EP2094982A1 (de) |
JP (1) | JP2010510454A (de) |
DE (1) | DE102006055029A1 (de) |
WO (1) | WO2008061503A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8939652B2 (en) * | 2012-12-13 | 2015-01-27 | Us Synthetic Corporation | Roller bearing apparatuses including compliant rolling elements, and related methods of manufacture |
DE102013201326A1 (de) * | 2013-01-28 | 2014-07-31 | Aktiebolaget Skf | Wälzlager mit verbesserten Lasteigenschaften |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR670110A (fr) * | 1929-02-21 | 1929-11-25 | Roulement à rouleaux perfectionné | |
US3410618A (en) * | 1967-03-23 | 1968-11-12 | Skf Ind Inc | Anti-skid bearing |
CA975038A (en) * | 1970-05-22 | 1975-09-23 | Willard L. Bowen | Roller bearing for supporting grinding wheel with great decrease in runout |
DE2152125A1 (de) * | 1971-01-20 | 1972-07-27 | Rollway Bearing Co Inc | Rolle fuer ein Waelzlager |
US3765071A (en) * | 1972-09-07 | 1973-10-16 | W Bowen | Method of forming a roller bearing of superior runout characteristics |
DE2741057A1 (de) * | 1977-09-13 | 1979-03-15 | Zahnradfabrik Friedrichshafen | Vorrichtung zum lagern von wellen in kraftfahrzeuglenkgetriebe |
FR2479369A1 (fr) * | 1980-04-01 | 1981-10-02 | Torrington France | Dispositif de roulement pour palier radial |
JPS5769115A (en) * | 1980-10-18 | 1982-04-27 | Toshihisa Hasegawa | Holed-roller bearing |
DE3327132A1 (de) * | 1983-07-27 | 1985-02-07 | Erich 8151 Neukolbing Weichenrieder sen. | Waelzlageranordnung an einer kunststoffverarbeitungsmaschine |
DD253655A1 (de) * | 1986-05-16 | 1988-01-27 | Schule F Maschinenbau U E Tech | Federndes waelzlager mit spezieller waelzkoerpergestaltung |
US5033877A (en) * | 1990-12-11 | 1991-07-23 | Zrb Bearings, Inc. | Hollow roller bearing preloaded by an interference fit |
DE10200609A1 (de) * | 2002-01-10 | 2003-07-24 | Ina Schaeffler Kg | Elektrisch unterstützte Hilfskraftlenkung für Kraftfahrzeuge |
DE102006055027A1 (de) * | 2006-11-22 | 2008-05-29 | Schaeffler Kg | Radialwälzlager, insbesondere zur Lagerung von Wellen in Windkraftgetrieben |
DE102006055026A1 (de) * | 2006-11-22 | 2008-05-29 | Schaeffler Kg | Radialwälzlager, insbesondere zur Lagerung von Wellen in Windkraftgetrieben |
-
2006
- 2006-11-22 DE DE102006055029A patent/DE102006055029A1/de not_active Withdrawn
-
2007
- 2007-11-15 EP EP07817792A patent/EP2094982A1/de not_active Ceased
- 2007-11-15 JP JP2009537478A patent/JP2010510454A/ja active Pending
- 2007-11-15 US US12/515,809 patent/US20100014797A1/en not_active Abandoned
- 2007-11-15 WO PCT/DE2007/002069 patent/WO2008061503A1/de active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2008061503A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2008061503A1 (de) | 2008-05-29 |
US20100014797A1 (en) | 2010-01-21 |
DE102006055029A1 (de) | 2008-05-29 |
JP2010510454A (ja) | 2010-04-02 |
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Legal Events
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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17P | Request for examination filed |
Effective date: 20090606 |
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Effective date: 20091120 |
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DAX | Request for extension of the european patent (deleted) | ||
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG |
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RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SCHAEFFLER TECHNOLOGIES AG & CO. KG |
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REG | Reference to a national code |
Ref country code: DE Ref legal event code: R003 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED |
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18R | Application refused |
Effective date: 20130504 |
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P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230522 |