EP3004554B1 - Rotorscheibenschaufel für turbomaschine, turbomaschinen-rotorscheibe, turbomaschine und verfahren zur montage von platten auf einen schaufelfuss - Google Patents

Rotorscheibenschaufel für turbomaschine, turbomaschinen-rotorscheibe, turbomaschine und verfahren zur montage von platten auf einen schaufelfuss Download PDF

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Publication number
EP3004554B1
EP3004554B1 EP14731728.3A EP14731728A EP3004554B1 EP 3004554 B1 EP3004554 B1 EP 3004554B1 EP 14731728 A EP14731728 A EP 14731728A EP 3004554 B1 EP3004554 B1 EP 3004554B1
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EP
European Patent Office
Prior art keywords
blade
blade root
root
nut
plates
Prior art date
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Application number
EP14731728.3A
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English (en)
French (fr)
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EP3004554A1 (de
Inventor
David Locatelli
Clément ROUSSILLE
Ivan HERRAIZ
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Safran Aircraft Engines SAS
Safran Ceramics SA
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Safran Aircraft Engines SAS
Safran Ceramics SA
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Publication of EP3004554A1 publication Critical patent/EP3004554A1/de
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Classifications

    • 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
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
    • F01D5/3007—Fixing blades to rotors; Blade roots ; Blade spacers of axial insertion type
    • F01D5/3015—Fixing blades to rotors; Blade roots ; Blade spacers of axial insertion type with side plates
    • 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
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F01D5/147—Construction, i.e. structural features, e.g. of weight-saving hollow blades
    • 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
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion
    • F01D5/282—Selecting composite materials, e.g. blades with reinforcing filaments
    • 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
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
    • F01D5/3007—Fixing blades to rotors; Blade roots ; Blade spacers of axial insertion type
    • 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
    • F05D2250/00—Geometry
    • F05D2250/20—Three-dimensional
    • F05D2250/23—Three-dimensional prismatic
    • F05D2250/232—Three-dimensional prismatic conical
    • 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
    • F05D2250/00—Geometry
    • F05D2250/20—Three-dimensional
    • F05D2250/29—Three-dimensional machined; miscellaneous
    • F05D2250/294—Three-dimensional machined; miscellaneous grooved
    • 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
    • F05D2250/00—Geometry
    • F05D2250/60—Structure; Surface texture
    • F05D2250/61—Structure; Surface texture corrugated
    • 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
    • F05D2260/00—Function
    • F05D2260/30—Retaining components in desired mutual position
    • F05D2260/37—Retaining components in desired mutual position by a press fit connection

Definitions

  • the present invention relates to the general field of turbomachine blades made of composite material comprising a fibrous reinforcement densified by a matrix, and more particularly to a blade of a rotor disc for a turbomachine, to a rotor disc, of a turbomachine, to a turbomachine, as well as a method for assembling plates on a blade root.
  • the targeted field is that of moving blades intended to be mounted on gas turbine rotor discs for aeronautical engines or industrial turbines.
  • This type of dawn is originally from foundry and has a bulbous foot.
  • the raw foot is precision machined to provide an efficient mechanical interface with its housing in the rotor disc.
  • the blade root is made using an insert positioned in a detachment of the textile preform in order to form a bulb-shaped portion at the level of the part of the blade corresponding to its root.
  • the textile of the preform mobile by nature, interacts mechanically with the insert and can lead in particular to shearing of the textile, rotations of the insert, unbinding between the insert and the textile, etc.
  • the molding and densification of the part of the preform intended to form the blade root prove to be difficult, in particular because the tolerances on the profile of the bulbous root are very low (of the order of tenth of a millimetre) and that the requirements in terms of mechanical properties of this part of the blade are high, the root of the blade concentrating the majority of the forces applied to the blade.
  • the document US 2010/189562 discloses a composite material turbomachine blade having at its part intended to form the blade root a substantially planar portion, the geometry of the root being obtained by enclosing this portion between two metal plates held in place by a welded pin.
  • This design facilitates the manufacture of the composite blade because the geometry of the bulbous root or equivalent which is difficult to obtain from the textile preform is ensured by adding metal plates to the sides of a flat portion which is simple to make in composite material.
  • the blade root corresponds to the part of the blade which concentrates most of the forces applied to the blade since it is intended to ensure the maintenance of the blade in the vis- against centrifugal forces.
  • the forces applied by the centrifugal forces are essentially taken up at the level of the portion made of composite material of the blade in contact with the pin when the friction forces between the metal plates and the sides of the blade made of composite material are insufficient to resume these efforts. In this situation, there is then a risk of damage to the composite material, or even of rupture by caulking of the latter.
  • the main purpose of the present invention is therefore to propose a blade made of composite material, the geometry of the root of which can be made in an easy and reproducible manner while ensuring reliable absorption of the forces applied to the blade root.
  • a rotor disk blade for a turbomachine made of composite material comprising a fibrous reinforcement obtained by multilayer weaving of yarns and densified by a matrix, the blade comprising a part constituting the blade and blade root forming a single part, the blade root having two substantially plane opposite lateral flanks which are formed in the respective extension of the intrados and extrados surfaces of the blade, the blade root being sandwiched between two metal plates fixed against the lateral flanks of the blade root blade by a screw and a nut passing through the plates and the blade root, such that the screw comprises a head resting on one of the two plates and in that the nut comprises a head resting on the other plate, the screw and the nut applying on the metal plates a minimum clamping force capable of ensuring an absorption, by friction between the metal plates and the lateral flanks of the blade root, of a determined centrifugal force applied to dawn, and noteworthy in that each metal plate has on its face opposite to that in contact with the blade root at least one project
  • the screw and the nut comprise a head of conical shape while the plates have a corresponding chamfer allowing the screw and nut to be fully integrated into the plates.
  • the blade root comprises an oblong hole or scalloping extending in the direction of the length of the blade for the passage of the screw and the nut.
  • the oblong hole or scalloping allowing the release of thermodynamic constraints.
  • the face of each plate facing the blade root has a structured surface so as to increase the friction between the plates and the blade root.
  • the face of each plate facing the blade root may in particular comprise straight or crossed knurling oriented according to the direction of the centrifugal forces to which the blade is subjected.
  • the metal plates have a coefficient of thermal expansion lower than the coefficient of thermal expansion of the screw and of the nut. The clamping force is thus maintained during temperature rises.
  • the metal plates, the screw and the nut have coefficients of thermal expansion changing in a similar manner over all or part of a temperature range between 0° C. and 800 °C, which allows better control of the maintenance of the tightening over the entire temperature range.
  • the invention also relates to a turbomachine rotor disk comprising at its outer periphery a plurality of substantially axial metal cells and a plurality of blades as defined previously, each blade being mounted by its root in a cell of the disk.
  • the invention also relates to a turbomachine comprising at least one such rotor disk.
  • the invention also relates to a method for assembling plates on a blade root, said blade being made of a composite material comprising a fibrous reinforcement obtained by multilayer weaving of wires and densified by a matrix, the blade comprising a part constituting the blade and blade root forming a single piece, the blade root having two substantially planar opposite lateral flanks which are formed in the respective extension of the lower surfaces and upper surface of the blade, the blade root being clamped between two metal plates fixed against the side flanks of the blade root by a screw and a nut passing through the plates and the blade root, such that the screw comprises a head resting on one of the two plates, the nut comprising a head resting on the other plate, and in that a minimum clamping force capable of ensure recovery, by friction between the metal plates and the lateral sides of the blade root, of a determined centrifugal force applied to the blade, and noteworthy in that each metal plate has on its face opposite to that in contact with the blade root at least one projecting portion, said portion having a shape capable of
  • the minimum clamping force is determined by dividing the centrifugal force determined by the coefficient of friction between the metal plates and the lateral flanks of the blade root.
  • the invention is applicable to different types of moving blades made of composite turbomachine material, in particular compressor and turbine blades of different gas turbine bodies, for example a low-pressure turbine rotor disk blade, such as the one illustrated by figure 1 .
  • the dawn 10 of the figure 1 comprises a blade 12, a foot 14 formed by a part of greater thickness and extended by a stilt 16, and a platform 18 located between the stilt 16 and the blade 12.
  • the dawn can also comprise, as illustrated here, a heel 19 in the vicinity of the free end 20 of the blade.
  • the blade 12 forms an aerodynamic surface which extends in the longitudinal direction from the platform 18 to its free end 20. It has a curved profile of variable thickness formed by an intrados surface 12a and an extrados surface 12b connected transversely by a leading edge 12c and a trailing edge 12d.
  • the blade 10 is made of a composite material using methods known to those skilled in the art.
  • composite material we mean here any material formed from a fibrous reinforcement filled with a matrix such as for example ceramic matrix materials (CMC) (reinforcement made of carbon fibers or ceramic filled with a matrix with less partially ceramic), carbon/carbon (C/C) materials (carbon fiber reinforcement and carbon matrix), oxide/oxide materials (oxide fiber reinforcement and oxide matrix), organic matrix materials (CMO) (fiberglass, carbon or other reinforcement and organic matrix), etc.
  • CMC ceramic matrix materials
  • C/C carbon/carbon
  • oxide/oxide materials oxide fiber reinforcement and oxide matrix
  • CMO organic matrix materials
  • the constituent part of the blade 12 forms a single piece with the root 14 of the blade.
  • the blade is made of ceramic matrix composite material (CMC).
  • the blade 10 also has, at its root 14, two opposite lateral flanks 22, 24 which are substantially plane and which are formed in the respective extension of the intrados 12a and extrados 12b surfaces of blade 12.
  • the root 14 of the blade 10 is sandwiched between two metal plates 26, 28 fixed respectively against the side flanks 22, 24 of the root.
  • the fixing of the metal plates 26 and 28 is carried out by means of at least one screw 30 and a nut 40 passing through, in a direction substantially perpendicular to the lateral sides, holes 260 and 280 provided respectively in the plates 26 and 28 and a orifice 25 made through the root 14 of the blade.
  • Nut 40 is preferably a self-locking nut.
  • the orifice 25 in the root of the blade is added during the manufacturing process of the blade, either by using an insert of corresponding shape during weaving, or by drilling the root after the first infiltration.
  • the screw 30 comprises a head 31 of frustoconical shape cooperating with a chamfer 261 provided in the plate 26 while the nut 40 comprises a head 41 also of frustoconical shape cooperating with a chamfer 281 provided in the plate 28.
  • the screw 30 comprises a threaded rod 32 cooperating with an internal thread 43 formed inside a hollow rod 42 of the nut 40 during tightening of the connection for fixing the plates.
  • the nut 40 comprises at level with its head 41 a flat 410 intended to cooperate with a flat 282 provided in the chamfer 281 of the plate 28 in order to counter the rotation of the nut 40 during its tightening with the screw 30.
  • the tightening of the screw 30 with the nut 40 is carried out according to a minimum tightening force capable of ensuring recovery by friction between the metal plates 26 and 28 and the lateral flanks 22 and 24 of the foot of blade of a determined centrifugal force or tensile force applied to the blade.
  • the minimum tightening force must make it possible to ensure non-slip contact between, on the one hand, the internal face 26a of the metal plate 26 and the flank 22 of the blade root 14 and, on the other hand , the internal face 28a of the metal plate 28 and the flank 24 of the blade root 14.
  • the contact between the metal plates and the flanks of the blade root must remain non-slip in the face of the maximum tensile force encountered in operation which corresponds to the maximum centrifugal force exerted on the blade during its use.
  • the tightening of the screw is for example carried out with a dynamometric wrench which makes it possible to control the tightening force applied.
  • the inner faces 26a and 28a of the metal plates 26 and 28 respectively opposite the sides 22 and 24 of the blade root 14 may comprise a structured surface in order to achieve mechanical anchoring of the metal plates on the sides of the blade root.
  • the internal faces 26a and 28a of the metal plates 26 and 28 each comprise a straight knurling 265, 285 oriented perpendicular to the axis of the blade and, consequently, to the direction of the tensile force. applied at dawn.
  • knurling a coefficient of friction is obtained between the plates and the sides of the blade root close to 1, the clamping force to be applied in this case being equal to the maximum centrifugal force.
  • the knurling can also be crossed or ribbed.
  • the coefficient of friction between the plates and the flanks of the blade root can also be increased by forming a rough layer or abrasive, such as a layer of solder, between the metal plates and the sides of the blade root.
  • the passage orifice of the connection made in the blade root may have an oblong shape, as shown in the figure 5 which shows a root 114 of a blade 100 comprising an oblong passage orifice 125 extending along the length of the blade 100.
  • the connection passage orifice formed in the blade root may have other suitable shapes such as scalloping.
  • the screw and the nut can be made of high-performance nickel-based alloy of the Haynes ® 242 ® or Waspaloy ® type, while the plates are made of A286 stainless steel or Inconel ® 718.
  • the blade, the metal plates, the screw and the nut are made of materials which preferably have coefficients of thermal expansion changing in a similar manner over all or part of a temperature range between 0°C and 800°C. Indeed, by having a quasi-uniformity in the evolution curves of the coefficients of thermal expansion of all of these elements, the tightening behavior is better controlled during temperature variations.
  • a blade made of composite material with plates made of A286 stainless steel or Inconel ® 718 and a screw-nut system made of a high-performance alloy based on nickel of the Haynes ® 242 ® or Waspaloy ® type have coefficients of thermal expansion evolving in an identical manner.
  • the metal plates are machined according to a shape making it possible to give the blade root a geometry adapted to the housing of the disc or wheel in which it must be inserted.
  • the plates 26 and 28 are machined so as to respectively form portions of reduced thickness 262 and 282 giving the blade root, once mounted thereon, a bulbous shape capable of cooperating with a housing 51 of a rotor disc 50 as shown in the figures 6 and 7 .
  • each blade 10 is mounted on the disc 50 by engaging the root 14 clamped between the plates 26 and 28 in a housing or cell 51.
  • Each housing 51 is separated from the adjacent housing by a tooth 52 comprising an upper part 53 having a bulging shape intended to retain the blade during the rotation of the disc.
  • the plates 26 comprise two portions 263 and 264 projecting from the outer surface of the plate and extending substantially perpendicular to this surface.
  • the plates 28 include two portions 283 and 284 projecting from the outer surface of the plate and extending substantially perpendicular to this surface.
  • the portions 263, 264, 283 and 284 act both as an anti-tilt wall for the blade and provide a sealing function, the portions 263 and 264 of a blade respectively coming into contact with the portions 283 and 284 from another adjacent blade.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Composite Materials (AREA)
  • Architecture (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (11)

  1. Schaufel (10) einer Rotorscheibe (50) für Turbomaschine aus Verbundmaterial, umfassend eine Faserverstärkung, die durch mehrschichtiges Weben von Fäden erhalten und durch eine Matrix verdichtet wird, wobei die Schaufel (10) einen Teil umfasst, der aus einem Blatt (12) und Schaufelfuß (14) besteht, der ein einziges Teil bildet, wobei der Schaufelfuß (14) zwei etwa ebene gegenüberliegende seitliche Flanken (22, 24) hat, die in der jeweiligen Verlängerung der Vorderkanten- (12a) und Hinterkantenoberflächen (12b) des Blatts (10) gebildet sind, wobei der Schaufelfuß (14) zwischen zwei Metallplatten (26, 28) eingeschlossen ist, die an den seitlichen Flanken (22, 24) des Schaufelfußes anhand einer Schraube (30) und einer Mutter (40) befestigt sind, die die Platten (26, 28) und den Schaufelfuß (14) durchqueren, wobei die Schraube (30) einen Kopf (31) in Abstützung auf einer (26) der zwei Platten umfasst, wobei die Mutter (40) einen Kopf (41) in Abstützung auf der anderen Platte (28) umfasst, wobei die Schraube und die Mutter (30, 40) auf die Metallplatten (26, 28) eine minimale Spannkraft ausüben, die imstande ist, eine Übernahme durch Reibung zwischen den Metallplatten (26, 28) und den seitlichen Flanken (22, 24) des Schaufelfußes (14) einer bestimmten Zentrifugalkraft sicherzustellen, die auf die Schaufel (10) ausgeübt wird,
    dadurch gekennzeichnet, dass jede Metallplatte (26; 28) auf ihrer Fläche, die gegenüber derjenigen ist, die mit dem Schaufelfuß (14) in Kontakt ist, mindestens einen hervorstehenden Abschnitt (263; 283) aufweist, wobei der Abschnitt eine Form aufweist, die imstande ist, eine oder die zwei folgenden Funktionen sicherzustellen: Kippsicherung und Dichtigkeit.
  2. Schaufel nach Anspruch 1, dadurch gekennzeichnet, dass die Schraube (30) und die Mutter (40) einen konischen Kopf (31; 41) aufweisen und dass die Metallplatten (26, 28) eine entsprechend Schräge (261; 281) aufweisen.
  3. Schaufel nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Schaufelfuß (14) ein Langloch (125) oder eine Einkerbung aufweist, das/die sich in Richtung der Länge der Schaufel (10) für den Durchgang der Schraube und der Mutter erstreckt.
  4. Schaufel nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Fläche (26a; 28a) jeder Platte (26; 28), die dem Schaufelfuß zugewandt ist, eine strukturierte Oberfläche aufweist.
  5. Schaufel nach Anspruch 4, dadurch gekennzeichnet, dass die Fläche (26a; 28a) jeder Platte (26; 28), die dem Schaufelfuß (14) zugewandt ist, eine Rändelung (265; 285) aufweist.
  6. Schaufel nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Metallplatten (26, 28) einen Wärmeausdehnungskoeffizienten haben, der kleiner als der Wärmeausdehnungskoeffizient der Schraube (30) und der Mutter (40) ist.
  7. Schaufel nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Schaufel (10), die Metallplatten (26, 28), die Schraube (30) und die Mutter (40) Wärmeausdehnungskoeffizienten aufweisen, die sich über den gesamten oder einen Teil eines Temperaturbereichs, der zwischen 0°C und 800°C liegt, ähnlich entwickeln.
  8. Rotorscheibe (50) einer Turbomaschine, die an ihrer äußeren Peripherie eine Vielzahl von etwa axialen Metallwaben (51) umfasst, dadurch gekennzeichnet, dass sie ferner eine Vielzahl von Schaufeln (10) nach einem der Ansprüche 1 bis 7 aufweist, wobei jede Schaufel (10) anhand ihres Fußes in einer Wabe der Scheibe angebracht ist.
  9. Turbomaschine, die mindestens eine Rotorscheibe (50) nach Anspruch 8 aufweist.
  10. Verfahren zur Verbindung von Platten (26, 28) auf einem Schaufelfuß (14), wobei die Schaufel aus Verbundmaterial hergestellt ist, umfassend eine Faserverstärkung, die durch mehrschichtiges Weben von Fäden erhalten und durch eine Matrix verdichtet wird, wobei die Schaufel (10) einen Teil umfasst, der aus einem Blatt (12) und Schaufelfuß (14) besteht, der ein einziges Teil bildet, wobei der Schaufelfuß (14) zwei etwa ebene gegenüberliegende seitliche Flanken (22, 24) hat, die in der jeweiligen Verlängerung der Vorderkanten- (12a) und Hinterkantenoberflächen (12b) des Blatts (12) gebildet sind, wobei der Schaufelfuß (14) zwischen zwei Metallplatten (26, 28) eingeschlossen ist, die an den seitlichen Flanken (22, 24) des Schaufelfußes (14) anhand einer Schraube (30) und einer Mutter (40) befestigt sind, die die Platten (26, 28) und den Schaufelfuß (14) durchqueren, wobei die Schraube (30) einen Kopf (31) in Abstützung auf einer (26) der zwei Platten umfasst, wobei die Mutter (40) einen Kopf (41) in Abstützung auf der anderen Platte (28) umfasst, wobei bei dem Verfahren auf die Metallplatten (26, 28) beim Spannen der Schraube (30) mit der Mutter (40) eine minimale Spannkraft ausgeübt wird, die imstande ist, eine Übernahme durch Reibung zwischen den Metallplatten (26, 28) und den seitlichen Flanken (22, 24) des Schaufelfußes (14) einer bestimmten Zentrifugalkraft sicherzustellen, die auf die Schaufel (10) ausgeübt wird,
    dadurch gekennzeichnet, dass jede Metallplatte (26; 28) auf ihrer Fläche, die gegenüber derjenigen ist, die mit dem Schaufelfuß (14) in Kontakt ist, mindestens einen hervorstehenden Abschnitt (263; 283) aufweist, wobei der Abschnitt eine Form aufweist, die imstande ist, eine oder die zwei folgenden Funktionen sicherzustellen: Kippsicherung und Dichtigkeit.
  11. Verfahren nach Anspruch 10, dadurch gekennzeichnet, dass die minimale Spannkraft durch Division der Zentrifugalkraft bestimmt wird, die durch den Reibungskoeffizienten zwischen den Metallplatten (26, 28) und den seitlichen Flanken (22, 24) des Schaufelfußes (14) bestimmt wird.
EP14731728.3A 2013-05-28 2014-05-26 Rotorscheibenschaufel für turbomaschine, turbomaschinen-rotorscheibe, turbomaschine und verfahren zur montage von platten auf einen schaufelfuss Active EP3004554B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1354797A FR3006368B1 (fr) 2013-05-28 2013-05-28 Aube de disque de rotor avec retenue du pied par frottement
PCT/FR2014/051231 WO2014191670A1 (fr) 2013-05-28 2014-05-26 Aube de disque de rotor avec retenue du pied par frottement, disque de rotor, turbomachine et procédé d'assemblage associé

Publications (2)

Publication Number Publication Date
EP3004554A1 EP3004554A1 (de) 2016-04-13
EP3004554B1 true EP3004554B1 (de) 2022-12-28

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EP14731728.3A Active EP3004554B1 (de) 2013-05-28 2014-05-26 Rotorscheibenschaufel für turbomaschine, turbomaschinen-rotorscheibe, turbomaschine und verfahren zur montage von platten auf einen schaufelfuss

Country Status (5)

Country Link
US (1) US10132171B2 (de)
EP (1) EP3004554B1 (de)
CA (1) CA2913030C (de)
FR (1) FR3006368B1 (de)
WO (1) WO2014191670A1 (de)

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JP6082193B2 (ja) * 2012-06-20 2017-02-15 株式会社Ihi 翼の連結部構造及びこれを用いたジェットエンジン
RU174793U1 (ru) * 2016-09-13 2017-11-02 Общество с ограниченной ответственностью "Инжиниринговый центр "Газотурбинные технологии" Рабочая лопатка турбомашины
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FR3006368A1 (fr) 2014-12-05
EP3004554A1 (de) 2016-04-13
WO2014191670A1 (fr) 2014-12-04
CA2913030C (fr) 2021-11-09
CA2913030A1 (fr) 2014-12-04
FR3006368B1 (fr) 2015-07-03
US20160108744A1 (en) 2016-04-21
US10132171B2 (en) 2018-11-20

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