EP1698759A3 - Rotor end piece - Google Patents

Rotor end piece Download PDF

Info

Publication number
EP1698759A3
EP1698759A3 EP06110072A EP06110072A EP1698759A3 EP 1698759 A3 EP1698759 A3 EP 1698759A3 EP 06110072 A EP06110072 A EP 06110072A EP 06110072 A EP06110072 A EP 06110072A EP 1698759 A3 EP1698759 A3 EP 1698759A3
Authority
EP
European Patent Office
Prior art keywords
end piece
rotor
rotor end
blade
piece
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
EP06110072A
Other languages
German (de)
French (fr)
Other versions
EP1698759A2 (en
EP1698759B1 (en
Inventor
René Bachofner
Pietro Grigioni
Wolfgang Kappis
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.)
General Electric Technology GmbH
Original Assignee
Alstom Technology AG
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 Alstom Technology AG filed Critical Alstom Technology AG
Publication of EP1698759A2 publication Critical patent/EP1698759A2/en
Publication of EP1698759A3 publication Critical patent/EP1698759A3/en
Application granted granted Critical
Publication of EP1698759B1 publication Critical patent/EP1698759B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • F01D5/3023—Fixing blades to rotors; Blade roots ; Blade spacers of radial insertion type, e.g. in individual recesses
    • F01D5/303—Fixing blades to rotors; Blade roots ; Blade spacers of radial insertion type, e.g. in individual recesses in a circumferential slot
    • F01D5/3038—Fixing blades to rotors; Blade roots ; Blade spacers of radial insertion type, e.g. in individual recesses in a circumferential slot the slot having inwardly directed abutment faces on both sides

Abstract

Ein Rotor-Schluss (1) für einen Rotor (6) einer thermischen Turbomaschine mit zumindest einer Umfangsnut (3), in der Laufschaufeln und Zwischenstücke vorgesehen sind, ist dadurch gekennzeichnet, dass zwischen einer Endschaufel (2) und einem Endstück (11) ein Restspalt (15) gebildet ist, in dem zwei Schlusshälften (4, 4) angeordnet sind, die jeweils einstückig mit diesen verbundene Sicherungslappen aufweisen (8, 8), welche mit der Endschaufel (2) bzw. mit dem Endstück (11) im Eingriff stehen. Hierdurch werden die Nachteile des Standes der Technik vermieden und ein Rotor-Schluss zur Verfügung gestellt, welcher einfach und kostengünstig bei Montage und Herstellung ist. Ferner wird ein Montageverfahren angegeben.

Figure imgaf001
A rotor end (1) for a rotor (6) of a thermal turbomachine having at least one circumferential groove (3) in which blades and intermediate pieces are provided is characterized in that between an end blade (2) and an end piece (11) Residual gap (15) is formed, in which two closing halves (4, 4) are arranged, each integrally with these associated securing tabs (8, 8) which with the end blade (2) and with the end piece (11) in engagement stand. As a result, the disadvantages of the prior art are avoided and provided a rotor end, which is simple and inexpensive to install and manufacture. Furthermore, an assembly method is specified.
Figure imgaf001
EP06110072.3A 2005-02-23 2006-02-17 Rotor end piece Not-in-force EP1698759B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH3232005 2005-02-23

Publications (3)

Publication Number Publication Date
EP1698759A2 EP1698759A2 (en) 2006-09-06
EP1698759A3 true EP1698759A3 (en) 2012-04-04
EP1698759B1 EP1698759B1 (en) 2015-06-03

Family

ID=34974751

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06110072.3A Not-in-force EP1698759B1 (en) 2005-02-23 2006-02-17 Rotor end piece

Country Status (2)

Country Link
US (1) US7367778B2 (en)
EP (1) EP1698759B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9828865B2 (en) 2012-09-26 2017-11-28 United Technologies Corporation Turbomachine rotor groove
EP3337982B1 (en) * 2016-01-07 2022-03-02 Stein Seal Company Slurry seal assembly
US10465699B2 (en) * 2017-01-26 2019-11-05 DOOSAN Heavy Industries Construction Co., LTD Compressor blade locking mechanism in disk with tangential groove

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE724549C (en) * 1939-12-09 1942-08-29 Aeg Blade lock for a turbine blade made using intermediate pieces
DE812337C (en) * 1948-09-17 1951-08-27 Hermann Oestrich Dr Ing Final piece for the blading of the rotor rotor machines
DE1040047B (en) * 1954-12-23 1958-10-02 Maschf Augsburg Nuernberg Ag Attachment of the end vane of an impeller for axial centrifugal machines
CH414678A (en) * 1962-05-08 1966-06-15 Power Jets Res & Dev Ltd Rotor for turbo machine
DE1576955A1 (en) * 1967-01-19 1970-05-06 Gen Electric Fast running runner for axial turbo machines
DE2002469A1 (en) * 1970-01-21 1971-07-29 Daimler Benz Ag Shovel lock
DD271243A3 (en) * 1987-10-01 1989-08-30 Goerlitzer Maschinenbau Veb SHOVEL LOCK ASSEMBLY WITH MINIMIZED SHOVEL LOCK
EP1457642A2 (en) * 2003-03-11 2004-09-15 Alstom Technology Ltd Device for fixing blades to the rotor

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2410588A (en) 1942-06-23 1946-11-05 Northrop Aircraft Inc Turbine blade and assembly thereof
CH273791A (en) 1949-05-25 1951-02-28 Tech Studien Ag Blade lock on blades of axial flow machines without filling pieces.
US4633554A (en) * 1985-08-08 1987-01-06 Westinghouse Electric Corp. Method for repairing a steam turbine or generator rotor
US4915587A (en) * 1988-10-24 1990-04-10 Westinghouse Electric Corp. Apparatus for locking side entry blades into a rotor
DE10134611A1 (en) 2000-12-16 2002-06-27 Alstom Switzerland Ltd Fixing device for a blade mounting of a compressor or turbine stage of a gas turbine system comprises a blade having a counter-contour corresponding to a connecting element of a wedge element to produce a form-locking connection

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE724549C (en) * 1939-12-09 1942-08-29 Aeg Blade lock for a turbine blade made using intermediate pieces
DE812337C (en) * 1948-09-17 1951-08-27 Hermann Oestrich Dr Ing Final piece for the blading of the rotor rotor machines
DE1040047B (en) * 1954-12-23 1958-10-02 Maschf Augsburg Nuernberg Ag Attachment of the end vane of an impeller for axial centrifugal machines
CH414678A (en) * 1962-05-08 1966-06-15 Power Jets Res & Dev Ltd Rotor for turbo machine
DE1576955A1 (en) * 1967-01-19 1970-05-06 Gen Electric Fast running runner for axial turbo machines
DE2002469A1 (en) * 1970-01-21 1971-07-29 Daimler Benz Ag Shovel lock
DD271243A3 (en) * 1987-10-01 1989-08-30 Goerlitzer Maschinenbau Veb SHOVEL LOCK ASSEMBLY WITH MINIMIZED SHOVEL LOCK
EP1457642A2 (en) * 2003-03-11 2004-09-15 Alstom Technology Ltd Device for fixing blades to the rotor

Also Published As

Publication number Publication date
EP1698759A2 (en) 2006-09-06
US20060257248A1 (en) 2006-11-16
EP1698759B1 (en) 2015-06-03
US7367778B2 (en) 2008-05-06

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