EP1524409A2 - Dispositif de verrouillage d'aube - Google Patents

Dispositif de verrouillage d'aube Download PDF

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Publication number
EP1524409A2
EP1524409A2 EP04003299A EP04003299A EP1524409A2 EP 1524409 A2 EP1524409 A2 EP 1524409A2 EP 04003299 A EP04003299 A EP 04003299A EP 04003299 A EP04003299 A EP 04003299A EP 1524409 A2 EP1524409 A2 EP 1524409A2
Authority
EP
European Patent Office
Prior art keywords
retaining ring
bucket
restraint device
blade
disc
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.)
Granted
Application number
EP04003299A
Other languages
German (de)
English (en)
Other versions
EP1524409B1 (fr
EP1524409A3 (fr
Inventor
Tim Hopp
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.)
Rolls Royce Deutschland Ltd and Co KG
Original Assignee
Rolls Royce Deutschland Ltd and Co KG
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 Rolls Royce Deutschland Ltd and Co KG filed Critical Rolls Royce Deutschland Ltd and Co KG
Publication of EP1524409A2 publication Critical patent/EP1524409A2/fr
Publication of EP1524409A3 publication Critical patent/EP1524409A3/fr
Application granted granted Critical
Publication of EP1524409B1 publication Critical patent/EP1524409B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F01D5/32—Locking, e.g. by final locking blades or keys
    • F01D5/326—Locking of axial insertion type blades by other means
    • 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
    • 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
    • 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
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/50—Intrinsic material properties or characteristics
    • F05D2300/501—Elasticity

Definitions

  • the invention relates to a blade retention device according to the preamble of the main claim.
  • the invention relates to a bucket restraint for the axial fixation of blades on one Disk of a gas turbine, one connected to the blade, Profiled blade foot in one too the profile matching axial groove of the disc is inserted and is axially fixed by means of a split retaining ring, wherein the retaining ring at least partially in a groove of the blade root is included.
  • a bucket restraint for example, shows the US 6,234,756 B1.
  • the invention is based on the object, a blade retaining device to create the type mentioned, which with a simple structure and simple, cost-effective applicability easy to assemble and a small footprint having.
  • the disc with a circumferential annular groove which has an axially inner Has contact surface for the retaining ring and that the retaining ring at least in the axial direction is elastically deformable.
  • the blade restraint device according to the invention is characterized through a number of significant benefits.
  • the blade restraint device allows the installation also in a multi-stage welded rotor, at which consists of at least one stage of blades, the in the blade root have an outlet opening (micro-turbine).
  • the invention enables a favorable introduction of the centrifugal forces below the blade root and thus a low Weight of shovel and disc. This is also the lifetime to extend the entire arrangement.
  • the retaining ring can be designed as a sheet metal part, compared to known from the prior art expensive forgings.
  • the installation of the blade restraint device according to the invention ensures a high degree of repeatability and thus a repeatability high component reliability.
  • the annular groove is provided with at least one insertion opening. Through this insertion, the retaining ring can be easily and without damage be inserted or removed.
  • the retaining ring of two or more Layers of a metallic material consisting of a End of the retaining ring are connected together. This will significantly increases the elasticity of the retaining ring. this in turn causes the retaining ring to be inserted into the groove can and remains in this without deformation.
  • the retaining ring with a Anti-rotation is provided to a hiking of the retaining ring to avoid in the circumferential direction.
  • the rotation is more preferred Way in the form of a radially directed approach of the Retaining ring formed, the preferred manner at one end the retaining ring is provided.
  • the retaining ring can be inserted and be fixed by means of the rotation.
  • the retaining ring is a strip-shaped Cross section has. By such a rectangular Cross-section is sufficient penetration of the retaining ring in ensures the groove of the blade root or the disc.
  • the retaining ring according to the invention in scope in several segments be divided, for example, in six segments.
  • Fig. 1 shows a simplified representation of a rotatably mounted Disc 2 of a gas turbine engine, at which several Shovels 1 are attached. Adjacent stator blades are provided with the reference numeral 10. Incidentally, to the general structure referred to the prior art reference so that its description can be omitted.
  • the lower portions of the blade roots 3 are each with a Circumferential groove 6 provided.
  • the disc 2 has, as most clearly seen in Fig. 1 is, an annular groove 7, which opens radially outward is and has a plant leg 11, as can be seen from FIG. 1 results.
  • the blade restraining device according to the invention further comprises a divided into individual segments retaining ring 4, the at its free end with a radially outward facing Approach 9 is provided (see in particular Fig. 6).
  • the annular groove 7 has one or more insertion openings 8, realized by an interruption of the plant leg 11 are. Through these insertion openings 8, it is possible in Axial direction elastically deformable retaining ring 4, as can be seen from the illustrations of FIGS. 2 and 3 results.
  • the insertion opening 8 consists, as mentioned, of a recess in the lower Annular groove 7.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP04003299A 2003-10-16 2004-02-13 Dispositif de verrouillage d'aube Expired - Lifetime EP1524409B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10348198A DE10348198A1 (de) 2003-10-16 2003-10-16 Schaufelrückhaltevorrichtung
DE10348198 2003-10-16

Publications (3)

Publication Number Publication Date
EP1524409A2 true EP1524409A2 (fr) 2005-04-20
EP1524409A3 EP1524409A3 (fr) 2007-01-24
EP1524409B1 EP1524409B1 (fr) 2011-08-10

Family

ID=34353443

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04003299A Expired - Lifetime EP1524409B1 (fr) 2003-10-16 2004-02-13 Dispositif de verrouillage d'aube

Country Status (3)

Country Link
US (1) US7244105B2 (fr)
EP (1) EP1524409B1 (fr)
DE (1) DE10348198A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2330163C1 (ru) * 2006-11-01 2008-07-27 Открытое акционерное общество "Силовые машины-ЗТЛ, ЛМЗ, Электросила, Энергомашэкспорт" (ОАО "Силовые машины") Рабочее колесо газовой турбины

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004016977B4 (de) * 2004-04-07 2006-11-23 Mtu Aero Engines Gmbh Rotor für eine Turbomaschine
WO2007028703A1 (fr) * 2005-09-07 2007-03-15 Siemens Aktiengesellschaft Systeme de retenue axiale de d'aubes mobiles dans un rotor et utilisation dudit systeme
DE102006054154B4 (de) * 2006-11-16 2014-03-13 Man Diesel & Turbo Se Abgasturbolader
US8221083B2 (en) 2008-04-15 2012-07-17 United Technologies Corporation Asymmetrical rotor blade fir-tree attachment
US8162615B2 (en) * 2009-03-17 2012-04-24 United Technologies Corporation Split disk assembly for a gas turbine engine
FR2951224B1 (fr) * 2009-10-13 2011-12-09 Turbomeca Roue de turbine equipee d'un jonc de retenue axiale verrouillant des pales par rapport a un disque
US9051845B2 (en) 2012-01-05 2015-06-09 General Electric Company System for axial retention of rotating segments of a turbine
JP5675674B2 (ja) * 2012-02-29 2015-02-25 三菱重工業株式会社 タービン動翼の抜け止め構造およびこれを備えた回転機械
US9140136B2 (en) 2012-05-31 2015-09-22 United Technologies Corporation Stress-relieved wire seal assembly for gas turbine engines
US9366145B2 (en) 2012-08-24 2016-06-14 United Technologies Corporation Turbine engine rotor assembly
US9790803B2 (en) 2013-03-08 2017-10-17 United Technologies Corporation Double split blade lock ring
US10724384B2 (en) * 2016-09-01 2020-07-28 Raytheon Technologies Corporation Intermittent tab configuration for retaining ring retention
US10876429B2 (en) 2019-03-21 2020-12-29 Pratt & Whitney Canada Corp. Shroud segment assembly intersegment end gaps control
FR3150239B1 (fr) * 2023-06-23 2025-06-27 Safran Aircraft Engines Ensemble comprenant un segment d’arret axial et un outil de deverrouillage dudit segment d’arret axial et procede de deverrouillage d’un segment d’arret axial domaine technique de l’invention

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1830030U (de) * 1961-03-04 1961-04-27 Gen Electric Sicherung der schaufeln in den laeufern von turbinen, kompressoren od. dgl.
US3656865A (en) * 1970-07-21 1972-04-18 Gen Motors Corp Rotor blade retainer
FR2603333B1 (fr) * 1986-09-03 1990-07-20 Snecma Rotor de turbomachine comportant un moyen de verrouillage axial et d'etancheite d'aubes montees dans des brochages axiaux du disque et procede de montage
GB2258273B (en) * 1991-08-02 1994-08-10 Ruston Gas Turbines Ltd Rotor blade locking arrangement
GB9517369D0 (en) * 1995-08-24 1995-10-25 Rolls Royce Plc Bladed rotor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2330163C1 (ru) * 2006-11-01 2008-07-27 Открытое акционерное общество "Силовые машины-ЗТЛ, ЛМЗ, Электросила, Энергомашэкспорт" (ОАО "Силовые машины") Рабочее колесо газовой турбины

Also Published As

Publication number Publication date
US7244105B2 (en) 2007-07-17
EP1524409B1 (fr) 2011-08-10
EP1524409A3 (fr) 2007-01-24
DE10348198A1 (de) 2005-05-12
US20050084376A1 (en) 2005-04-21

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