FR3125319B1 - MECHANICAL ASSEMBLY AND MECHANICAL REDUCER OF AIRCRAFT TURBOMACHINE COMPRISING SUCH AN ASSEMBLY - Google Patents

MECHANICAL ASSEMBLY AND MECHANICAL REDUCER OF AIRCRAFT TURBOMACHINE COMPRISING SUCH AN ASSEMBLY Download PDF

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Publication number
FR3125319B1
FR3125319B1 FR2107720A FR2107720A FR3125319B1 FR 3125319 B1 FR3125319 B1 FR 3125319B1 FR 2107720 A FR2107720 A FR 2107720A FR 2107720 A FR2107720 A FR 2107720A FR 3125319 B1 FR3125319 B1 FR 3125319B1
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France
Prior art keywords
assembly
mechanical
ring
nut
shoulder
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Active
Application number
FR2107720A
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French (fr)
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FR3125319A1 (en
Inventor
Guillaume Pierre Mouly
Bálint Pap
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Safran Transmission Systems SAS
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Safran Transmission Systems SAS
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Publication date
Application filed by Safran Transmission Systems SAS filed Critical Safran Transmission Systems SAS
Priority to FR2107720A priority Critical patent/FR3125319B1/en
Publication of FR3125319A1 publication Critical patent/FR3125319A1/en
Application granted granted Critical
Publication of FR3125319B1 publication Critical patent/FR3125319B1/en
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Classifications

    • 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
    • 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
    • F16C33/586—Details of specific parts of races outside the space between the races, e.g. end faces or bore of inner ring
    • 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
    • F16C35/063—Fixing them on the shaft
    • 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
    • F02C7/36—Power transmission arrangements between the different shafts of the gas turbine plant, or between the gas-turbine plant and the power user
    • 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
    • F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
    • F16C2226/10—Force connections, e.g. clamping
    • F16C2226/12—Force connections, e.g. clamping by press-fit, e.g. plug-in
    • 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
    • F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
    • F16C2226/10—Force connections, e.g. clamping
    • F16C2226/16—Force connections, e.g. clamping by wedge action, e.g. by tapered or conical 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
    • F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
    • F16C2226/50—Positive connections
    • F16C2226/60—Positive connections with threaded parts, e.g. bolt and nut connections
    • 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
    • F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
    • F16C2226/50—Positive connections
    • F16C2226/70—Positive connections with complementary interlocking parts
    • F16C2226/72—Positive connections with complementary interlocking parts with bayonet joints, i.e. parts are rotated to create positive interlock
    • 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
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/08—General details of gearing of gearings with members having orbital motion
    • F16H2057/085—Bearings for orbital gears

Abstract

Ensemble mécanique (150) pour une turbomachine d’aéronef, cet ensemble comportant : - une pièce (156) comportant un filetage externe (170) et une surface cylindrique externe (166) s’étendant autour d’un même axe (Y), - un palier à roulements (94) monté sur ladite surface (166), ce palier (94) comportant une bague interne (158) qui est configurée pour être frettée sur ladite surface (166) et qui est en appui sur un épaulement cylindrique (168) de ladite pièce (156), et - un écrou (152) comportant un filetage interne (185) et configuré pour être vissé sur ledit filetage (170) afin de bloquer axialement ladite bague interne (158) contre ledit épaulement (168), ledit écrou (152) comportant un diamètre interne inférieur au diamètre externe (Dex) de ladite bague (158), ledit écrou (152) et ledit épaulement (168) étant situés d’un même côté de la bague (158). Figure pour l'abrégé : Figure 6Mechanical assembly (150) for an aircraft turbomachine, this assembly comprising: - a part (156) comprising an external thread (170) and an external cylindrical surface (166) extending around the same axis (Y), - a rolling bearing (94) mounted on said surface (166), this bearing (94) comprising an inner ring (158) which is configured to be shrunk on said surface (166) and which bears on a cylindrical shoulder ( 168) of said part (156), and - a nut (152) comprising an internal thread (185) and configured to be screwed onto said thread (170) in order to axially lock said internal ring (158) against said shoulder (168) , said nut (152) having an internal diameter smaller than the external diameter (Dex) of said ring (158), said nut (152) and said shoulder (168) being located on the same side of the ring (158). Figure for abstract: Figure 6

FR2107720A 2021-07-16 2021-07-16 MECHANICAL ASSEMBLY AND MECHANICAL REDUCER OF AIRCRAFT TURBOMACHINE COMPRISING SUCH AN ASSEMBLY Active FR3125319B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR2107720A FR3125319B1 (en) 2021-07-16 2021-07-16 MECHANICAL ASSEMBLY AND MECHANICAL REDUCER OF AIRCRAFT TURBOMACHINE COMPRISING SUCH AN ASSEMBLY

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2107720 2021-07-16
FR2107720A FR3125319B1 (en) 2021-07-16 2021-07-16 MECHANICAL ASSEMBLY AND MECHANICAL REDUCER OF AIRCRAFT TURBOMACHINE COMPRISING SUCH AN ASSEMBLY

Publications (2)

Publication Number Publication Date
FR3125319A1 FR3125319A1 (en) 2023-01-20
FR3125319B1 true FR3125319B1 (en) 2023-06-09

Family

ID=77180290

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2107720A Active FR3125319B1 (en) 2021-07-16 2021-07-16 MECHANICAL ASSEMBLY AND MECHANICAL REDUCER OF AIRCRAFT TURBOMACHINE COMPRISING SUCH AN ASSEMBLY

Country Status (1)

Country Link
FR (1) FR3125319B1 (en)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2942284B1 (en) 2009-02-16 2011-03-04 Snecma LUBRICATION AND COOLING OF AN EPICYCLOIDAL GEAR TRAIN REDUCER
FR2987416B1 (en) 2012-02-23 2015-09-04 Snecma DEVICE FOR LUBRICATING AN EPICYCLOIDAL REDUCER.
FR3008463B1 (en) 2013-07-10 2015-08-07 Hispano Suiza Sa COMPACT DRIVE HOUSING STRUCTURE FOR AIRCRAFT TURBOMACHINE
FR3008462B1 (en) 2013-07-10 2016-12-23 Hispano Suiza Sa INTEGRATION OF A GEAR TRAIN IN A DRIVE GEAR FOR DRIVE HOUSING FOR TURBOMACHINE
PL406855A1 (en) * 2014-01-15 2015-07-20 General Electric Company An unit immobilizing a bearing and method for assembling it
FR3041054B1 (en) 2015-09-15 2017-09-15 Hispano-Suiza OIL SUPPLY DEVICE FOR AN EPICYCLOIDAL TRAIN REDUCER.
US20170089218A1 (en) * 2015-09-25 2017-03-30 General Electric Company Double row cylindrical roller bearing with high length to diameter ratio rollers
US10234018B2 (en) * 2015-10-19 2019-03-19 General Electric Company Planet gearbox with cylindrical roller bearing with under race lube scheme

Also Published As

Publication number Publication date
FR3125319A1 (en) 2023-01-20

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