EP1134359A3 - Blade lock and method to make such a blade lock - Google Patents

Blade lock and method to make such a blade lock Download PDF

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Publication number
EP1134359A3
EP1134359A3 EP01103910A EP01103910A EP1134359A3 EP 1134359 A3 EP1134359 A3 EP 1134359A3 EP 01103910 A EP01103910 A EP 01103910A EP 01103910 A EP01103910 A EP 01103910A EP 1134359 A3 EP1134359 A3 EP 1134359A3
Authority
EP
European Patent Office
Prior art keywords
blade lock
blade
filler
cross
section
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
EP01103910A
Other languages
German (de)
French (fr)
Other versions
EP1134359A2 (en
EP1134359B1 (en
Inventor
Achim Zimmermann
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.)
MAN Energy Solutions SE
Original Assignee
MAN Turbomaschinen 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 MAN Turbomaschinen AG filed Critical MAN Turbomaschinen AG
Publication of EP1134359A2 publication Critical patent/EP1134359A2/en
Publication of EP1134359A3 publication Critical patent/EP1134359A3/en
Application granted granted Critical
Publication of EP1134359B1 publication Critical patent/EP1134359B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S416/00—Fluid reaction surfaces, i.e. impellers
    • Y10S416/50—Vibration damping features
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49316—Impeller making
    • Y10T29/4932—Turbomachine making
    • Y10T29/49321—Assembling individual fluid flow interacting members, e.g., blades, vanes, buckets, on rotary support member

Abstract

Die Schaufeln (3) einer Turbine axialer Bauart sind formschlüssig in einer hinterschnittenen Schaufelnut (2) des Turbinenläufers (1) eingesetzt und durch ein Schaufelschloss gesichert. Das Schaufelschloss besteht aus einer mit Schaufelnut (2) in Verbindung stehenden Einfädelstelle (7), in der ein mit dem Schaufelfuß (6) der Schaufeln (3) formschlüssiges Füllstück (8) und ein Keil (9) eingesetzt sind. Der das Füllstück (8) aufnehmende Querschnitt der Einfädelstelle (7) erweitert sich ausgehend von der Schaufelnut (2) konisch. Der Querschnitt des Füllstückes (8) ist dem Querschnitt der Einfädelstelle (7) angepasst.

Figure 00000001
The blades (3) of an axial-type turbine are positively inserted in an undercut blade groove (2) of the turbine rotor (1) and secured by a blade lock. The blade lock consists of a threading point (7) which is connected to the blade groove (2) and in which a filler (8) and a wedge (9) which are form-fitting with the blade root (6) of the blades (3) are inserted. The cross section of the threading point (7) receiving the filler (8) widens conically starting from the blade groove (2). The cross section of the filler (8) is adapted to the cross section of the threading point (7).
Figure 00000001
EP01103910A 2000-03-14 2001-02-17 Blade lock and method to make such a blade lock Expired - Lifetime EP1134359B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10012381A DE10012381A1 (en) 2000-03-14 2000-03-14 Bucket lock and method for manufacturing a paddle lock
DE10012381 2000-03-14

Publications (3)

Publication Number Publication Date
EP1134359A2 EP1134359A2 (en) 2001-09-19
EP1134359A3 true EP1134359A3 (en) 2003-07-30
EP1134359B1 EP1134359B1 (en) 2005-05-11

Family

ID=7634674

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01103910A Expired - Lifetime EP1134359B1 (en) 2000-03-14 2001-02-17 Blade lock and method to make such a blade lock

Country Status (8)

Country Link
US (1) US6431836B2 (en)
EP (1) EP1134359B1 (en)
JP (1) JP4009988B2 (en)
AT (1) ATE295472T1 (en)
CZ (1) CZ297759B6 (en)
DE (2) DE10012381A1 (en)
HU (1) HU225330B1 (en)
PL (1) PL199015B1 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6929453B2 (en) * 2003-12-11 2005-08-16 Siemens Westinghouse Power Corporation Locking spacer assembly for slotted turbine component
EP1707747A1 (en) * 2005-03-18 2006-10-04 Siemens Aktiengesellschaft Blade root fixation device and corresponding mounting method
US7901187B2 (en) * 2006-06-23 2011-03-08 Siemens Energy, Inc. Turbine rotor blade groove entry slot lock structure
DE102008048261B4 (en) * 2008-09-22 2017-04-06 Siemens Aktiengesellschaft Axial turbomachinery rotor with a paddle lock and method of making the same
US8523529B2 (en) * 2009-11-11 2013-09-03 General Electric Company Locking spacer assembly for a circumferential entry airfoil attachment system
US8414268B2 (en) * 2009-11-19 2013-04-09 United Technologies Corporation Rotor with one-sided load and lock slots
DE102010031213A1 (en) 2010-07-12 2012-01-12 Man Diesel & Turbo Se Rotor of a turbomachine
PL220908B1 (en) 2012-08-09 2016-01-29 Gen Electric Regeneration of the steam turbine blading carrier using a bonding method in the solid state
ITCO20130002A1 (en) * 2013-01-23 2014-07-24 Nuovo Pignone Srl METHOD AND SYSTEM FOR SELF-LOCKING A CLOSING SHOVEL IN A ROTARY MACHINE
US9416670B2 (en) 2013-10-16 2016-08-16 General Electric Company Locking spacer assembly
US9512732B2 (en) 2013-10-16 2016-12-06 General Electric Company Locking spacer assembly inserted between rotor blades
US9464531B2 (en) 2013-10-16 2016-10-11 General Electric Company Locking spacer assembly
US9341071B2 (en) 2013-10-16 2016-05-17 General Electric Company Locking spacer assembly
US9518471B2 (en) 2013-10-16 2016-12-13 General Electric Company Locking spacer assembly
ITMI20132124A1 (en) * 2013-12-18 2015-06-19 Franco Tosi Meccanica S P A ROTORIAL STAGE OF AXIAL TURBINE WITH BLOCK LOCKING OF THE ROOTS OF THE BALLS
US20150292540A1 (en) * 2014-04-09 2015-10-15 Natel Energy, Inc. Wedge clamping system for beams

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB640532A (en) * 1947-11-26 1950-07-19 British Thomson Houston Co Ltd Improvements in and relating to elastic fluid turbines
DE3028701A1 (en) * 1980-07-29 1982-02-25 AEG-Kanis Turbinenfabrik GmbH, 8500 Nürnberg Locking arrangement for turbine rotor blade - has profiled lock segment pressed into blade recess by wedge-expanded spacer

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2942842A (en) * 1956-06-13 1960-06-28 Gen Motors Corp Turbine blade lock
US3198485A (en) * 1963-09-26 1965-08-03 Gen Motors Corp Turbine blade lock
CH581783A5 (en) * 1975-01-30 1976-11-15 Bbc Sulzer Turbomaschinen
CA1114301A (en) * 1979-06-27 1981-12-15 Ivor J. Roberts Locking device for blade mounting
JPS59192801A (en) * 1983-04-15 1984-11-01 Hitachi Ltd Easily detachable moving blade fixing method
GB2171150B (en) * 1985-02-12 1989-07-26 Rolls Royce Plc Bladed rotor assembly for a turbomachine
US5074754A (en) * 1990-04-23 1991-12-24 United Technologies Corporation Rotor blade retention system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB640532A (en) * 1947-11-26 1950-07-19 British Thomson Houston Co Ltd Improvements in and relating to elastic fluid turbines
DE3028701A1 (en) * 1980-07-29 1982-02-25 AEG-Kanis Turbinenfabrik GmbH, 8500 Nürnberg Locking arrangement for turbine rotor blade - has profiled lock segment pressed into blade recess by wedge-expanded spacer

Also Published As

Publication number Publication date
EP1134359A2 (en) 2001-09-19
JP2001295603A (en) 2001-10-26
EP1134359B1 (en) 2005-05-11
HUP0100686A2 (en) 2002-01-28
JP4009988B2 (en) 2007-11-21
DE10012381A1 (en) 2001-09-20
DE50106157D1 (en) 2005-06-16
US20010022936A1 (en) 2001-09-20
CZ297759B6 (en) 2007-03-21
CZ20004854A3 (en) 2001-10-17
HUP0100686A3 (en) 2002-05-28
PL199015B1 (en) 2008-08-29
HU0100686D0 (en) 2001-04-28
ATE295472T1 (en) 2005-05-15
US6431836B2 (en) 2002-08-13
HU225330B1 (en) 2006-09-28
PL346333A1 (en) 2001-09-24

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