FR3093546B1 - Safety connection of an engine attachment of an aircraft propulsion unit and an aircraft propulsion unit equipped with such a safety connection - Google Patents

Safety connection of an engine attachment of an aircraft propulsion unit and an aircraft propulsion unit equipped with such a safety connection Download PDF

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Publication number
FR3093546B1
FR3093546B1 FR1902225A FR1902225A FR3093546B1 FR 3093546 B1 FR3093546 B1 FR 3093546B1 FR 1902225 A FR1902225 A FR 1902225A FR 1902225 A FR1902225 A FR 1902225A FR 3093546 B1 FR3093546 B1 FR 3093546B1
Authority
FR
France
Prior art keywords
safety connection
washer
aircraft propulsion
hinge pin
propulsion unit
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.)
Active
Application number
FR1902225A
Other languages
French (fr)
Other versions
FR3093546A1 (en
Inventor
Rémi Lansiaux
Pascal Forichon
Isabelle Petrissans-Lloveras
Wan Hu
Patrice Perez
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Airbus Operations SAS
Original Assignee
Airbus Operations SAS
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 Airbus Operations SAS filed Critical Airbus Operations SAS
Priority to FR1902225A priority Critical patent/FR3093546B1/en
Publication of FR3093546A1 publication Critical patent/FR3093546A1/en
Application granted granted Critical
Publication of FR3093546B1 publication Critical patent/FR3093546B1/en
Active legal-status Critical Current
Anticipated expiration legal-status 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
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/045—Pivotal connections with at least a pair of arms pivoting relatively to at least one other arm, all arms being mounted on one pin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D27/00—Arrangement or mounting of power plants in aircraft; Aircraft characterised by the type or position of power plants
    • B64D27/40—Arrangements for mounting power plants in aircraft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D27/00—Arrangement or mounting of power plants in aircraft; Aircraft characterised by the type or position of power plants
    • B64D27/40—Arrangements for mounting power plants in aircraft
    • B64D27/404—Suspension arrangements specially adapted for supporting vertical loads
    • 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
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
    • F16C11/0614—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints the female part of the joint being open on two sides
    • 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
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
    • F16C11/0695—Mounting of ball-joints, e.g. fixing them to a connecting rod
    • 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
    • F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
    • F16C41/008—Identification means, e.g. markings, RFID-tags; Data transfer means
    • 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
    • F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
    • F16C23/02—Sliding-contact 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
    • F16C2326/00—Articles relating to transporting
    • F16C2326/43—Aeroplanes; Helicopters

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transmission Devices (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

Liaison de sécurité d’une attache moteur d’un ensemble propulsif d’aéronef et ensemble propulsif d’aéronef équipé d’une telle liaison de sécurité L’invention concerne une liaison de sécurité (22c,23c) comprenant une chape (31) avec deux branches (32,33), chacune des branches (32,33) présentant un alésage (32c,33c) dans lequel est inséré un manchon (34,35), un palier à rotule (45) étant inséré entre les deux branches (32,33), ledit palier comprenant un alésage (45a), un axe d’articulation (40) présentant la forme d’un corps cylindrique étant emmanché dans l’alésage (45a) avec jeu (46) ainsi que dans les manchons (34,35), une vis (50) étant insérée dans le corps cylindrique creux de l’axe d’articulation (40) et une paire de rondelles (54,55) étant emmanchées sur la vis (50) avec une première rondelle (54) positionnée entre une tête (52) de la vis (50) et l’axe d’articulation (40) et une seconde rondelle (55) positionnée entre l’axe d’articulation (40), un écrou de serrage (56) étant fixé à une extrémité libre de la tige (51), au moins une rondelle (54,55) comprenant sur une première face au moins l’un d’un détrompeur (54b,55b) ou d’une contre-forme (40a,40b) et le corps cylindrique creux de l’axe d’articulation (40) comprenant une face plane sur laquelle est arrangée au moins l’un d’une contre-forme ou d’un détrompeur complémentaire à, respectivement, un détrompeur ou une contre-forme de la rondelle pour lier la rondelle (54,55) et le corps cylindrique creux de l’axe d’articulation (40) en rotation, la au moins une rondelle comprenant, sur une seconde face, un écrou d’entrainement (54a,55a) traversé par la vis (50). Figure pour l’abrégé : Fig. 3Safety connection of an engine attachment of an aircraft propulsion assembly and aircraft propulsion assembly equipped with such a safety connection The invention relates to a safety connection (22c, 23c) comprising a yoke (31) with two branches (32,33), each of the branches (32,33) having a bore (32c, 33c) in which is inserted a sleeve (34,35), a ball bearing (45) being inserted between the two branches ( 32,33), said bearing comprising a bore (45a), a hinge pin (40) having the shape of a cylindrical body being fitted in the bore (45a) with clearance (46) as well as in the sleeves ( 34,35), a screw (50) being inserted into the hollow cylindrical body of the hinge pin (40) and a pair of washers (54,55) being fitted onto the screw (50) with a first washer ( 54) positioned between a head (52) of the screw (50) and the hinge pin (40) and a second washer (55) positioned between the hinge pin (40), a tightening nut (56 ) being fixed at a free end of the rod (51), at least one washer (54,55) comprising on a first face at least one of a keying device (54b, 55b) or of a counter-form (40a, 40b ) and the hollow cylindrical body of the hinge pin (40) comprising a flat face on which is arranged at least one of a counter-form or a complementary keying device to, respectively, a keying device or a counter -form of the washer to link the washer (54,55) and the hollow cylindrical body of the articulation axis (40) in rotation, the at least one washer comprising, on a second face, a drive nut ( 54a, 55a) crossed by the screw (50). Figure for the abstract: Fig. 3

FR1902225A 2019-03-05 2019-03-05 Safety connection of an engine attachment of an aircraft propulsion unit and an aircraft propulsion unit equipped with such a safety connection Active FR3093546B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1902225A FR3093546B1 (en) 2019-03-05 2019-03-05 Safety connection of an engine attachment of an aircraft propulsion unit and an aircraft propulsion unit equipped with such a safety connection

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1902225A FR3093546B1 (en) 2019-03-05 2019-03-05 Safety connection of an engine attachment of an aircraft propulsion unit and an aircraft propulsion unit equipped with such a safety connection
FR1902225 2019-03-05

Publications (2)

Publication Number Publication Date
FR3093546A1 FR3093546A1 (en) 2020-09-11
FR3093546B1 true FR3093546B1 (en) 2021-04-23

Family

ID=67185377

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1902225A Active FR3093546B1 (en) 2019-03-05 2019-03-05 Safety connection of an engine attachment of an aircraft propulsion unit and an aircraft propulsion unit equipped with such a safety connection

Country Status (1)

Country Link
FR (1) FR3093546B1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4221607C1 (en) * 1992-07-01 1993-09-09 Deutsche Aerospace Airbus Gmbh, 21129 Hamburg, De
US5860623A (en) * 1995-05-03 1999-01-19 The Boeing Company Three link failsafe engine mount
FR2894934B1 (en) * 2005-12-15 2009-11-13 Airbus France REAR AXLE ATTACHMENT OF AN AIRCRAFT ENGINE WITH MANILITY WAITING FOR AND SPRING FOR SUCH AN AXIS WAITING
GB201417202D0 (en) * 2014-09-30 2014-11-12 Rolls Royce Plc Gas Turbine Engine Mounting Arrangement

Also Published As

Publication number Publication date
FR3093546A1 (en) 2020-09-11

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