FR3095481B1 - Roulement à double rangée de billes à contact oblique comprenant un moyen de rétention axiale de secours intégré au roulement - Google Patents

Roulement à double rangée de billes à contact oblique comprenant un moyen de rétention axiale de secours intégré au roulement Download PDF

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Publication number
FR3095481B1
FR3095481B1 FR1904380A FR1904380A FR3095481B1 FR 3095481 B1 FR3095481 B1 FR 3095481B1 FR 1904380 A FR1904380 A FR 1904380A FR 1904380 A FR1904380 A FR 1904380A FR 3095481 B1 FR3095481 B1 FR 3095481B1
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France
Prior art keywords
bearing
emergency
axial retention
retention means
balls
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Active
Application number
FR1904380A
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English (en)
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FR3095481A1 (fr
Inventor
Régis Eugène Henri Servant
Didier Gabriel Bertrand Desombre
Laurent Paul François Perrot
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Safran Aircraft Engines SAS
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Safran Aircraft Engines SAS
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Publication date
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Priority to FR1904380A priority Critical patent/FR3095481B1/fr
Publication of FR3095481A1 publication Critical patent/FR3095481A1/fr
Application granted granted Critical
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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
    • 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
    • F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
    • F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
    • F16C19/181—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/16—Arrangement of bearings; Supporting or mounting bearings in casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/06—Arrangements of bearings; Lubricating
    • 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
    • F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
    • F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
    • F16C19/181—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact
    • F16C19/183—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles
    • F16C19/184—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement
    • 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
    • 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
    • F16C33/58—Raceways; Race rings
    • F16C33/583—Details of specific parts of races
    • F16C33/585—Details of specific parts of races of raceways, e.g. ribs to guide the 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/60—Raceways; Race rings divided or split, e.g. comprising two juxtaposed rings
    • 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
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
    • F16C35/067—Fixing them in a housing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00—Application
    • F05D2220/30—Application in turbines
    • F05D2220/36—Application in turbines specially adapted for the fan of turbofan engines
    • 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
    • F16C2326/00—Articles relating to transporting
    • F16C2326/43—Aeroplanes; Helicopters
    • 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
    • F16C2360/23—Gas turbine engines

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

L’invention se rapporte à un roulement (18) à double rangée de billes (27A, 27B) à contact oblique, comprenant un moyen de rétention axiale de secours. Ce moyen de rétention axiale de secours comprend des pistes de secours (34, 35) qui n’interagissent pas avec les rangées de billes (27A, 27B) lors du fonctionnement normal du roulement (18). En cas de rupture de l’une (27A) des ranges de billes résultant d’un effort axial appliqué sur le roulement (18), les bagues (19, 20) de ce roulement (18) se déplacent l’une par rapport à l’autre sous l’action dudit effort axial, jusqu’à une position de secours dans laquelle l’autre rangée de billes (27B) est en appui contre les pistes de secours (34, 35). L’invention trouve notamment des applications dans le domaine aéronautique, le roulement (18) pouvant être utilisé pour guider en rotation une soufflante d’un turboréacteur. Dans une telle application, la position de secours permet une rétention axiale de la soufflante jusqu’à l’arrêt du moteur. Figure pour l’abrégé : Fig. 3
FR1904380A 2019-04-25 2019-04-25 Roulement à double rangée de billes à contact oblique comprenant un moyen de rétention axiale de secours intégré au roulement Active FR3095481B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1904380A FR3095481B1 (fr) 2019-04-25 2019-04-25 Roulement à double rangée de billes à contact oblique comprenant un moyen de rétention axiale de secours intégré au roulement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1904380A FR3095481B1 (fr) 2019-04-25 2019-04-25 Roulement à double rangée de billes à contact oblique comprenant un moyen de rétention axiale de secours intégré au roulement
FR1904380 2019-04-25

Publications (2)

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FR3095481A1 FR3095481A1 (fr) 2020-10-30
FR3095481B1 true FR3095481B1 (fr) 2021-05-21

Family

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FR1904380A Active FR3095481B1 (fr) 2019-04-25 2019-04-25 Roulement à double rangée de billes à contact oblique comprenant un moyen de rétention axiale de secours intégré au roulement

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3128260B1 (fr) 2021-10-18 2023-11-24 Airbus Helicopters Roulement à billes à contact oblique, boîte de transmission de puissance et aéronef associé, procédé de transmission de puissance
FR3140918A1 (fr) 2022-10-12 2024-04-19 Safran Aircraft Engines Roulement pour le guidage en rotation d’un arbre de turbomachine d’aeronef, presentant des moyens facilitant son extraction de l’arbre

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0143950B1 (fr) * 1983-11-30 1987-03-18 BBC Brown Boveri AG Dispositif de palier pour un turbocompresseur avec palier à roulement en tandem
DE19538553B4 (de) * 1995-10-17 2010-01-14 Schaeffler Kg Rotorlagerung eines Abgasturboladers
FR2960907B1 (fr) 2010-06-02 2012-07-27 Snecma Palier de roulement pour turboreacteur d'aeronef equipe de moyens ameliores de retention axiale de sa bague exterieure
EP2971676B1 (fr) 2013-03-15 2018-03-07 United Technologies Corporation Système de confinement axial de soufflante
FR3013325B1 (fr) * 2013-11-20 2015-11-27 Snecma Dispositif d'alimentation en huile sous pression d'un actionneur lineaire de turbomachine
FR3039203B1 (fr) * 2015-07-21 2020-02-14 Safran Aircraft Engines Ensemble de disque de rotor de turbomachine comportant au moins un palier a roulement integre

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Publication number Publication date
FR3095481A1 (fr) 2020-10-30

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