EP1134359A2 - Verrou pour aube de turbomachine et sa methode de fabrication - Google Patents

Verrou pour aube de turbomachine et sa methode de fabrication Download PDF

Info

Publication number
EP1134359A2
EP1134359A2 EP01103910A EP01103910A EP1134359A2 EP 1134359 A2 EP1134359 A2 EP 1134359A2 EP 01103910 A EP01103910 A EP 01103910A EP 01103910 A EP01103910 A EP 01103910A EP 1134359 A2 EP1134359 A2 EP 1134359A2
Authority
EP
European Patent Office
Prior art keywords
blade
blade groove
wedge
threading point
filler
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)
English (en)
Other versions
EP1134359B1 (fr
EP1134359A3 (fr
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 GHH Borsig
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 GHH Borsig, MAN Turbomaschinen AG filed Critical MAN Turbomaschinen AG GHH Borsig
Publication of EP1134359A2 publication Critical patent/EP1134359A2/fr
Publication of EP1134359A3 publication Critical patent/EP1134359A3/fr
Application granted granted Critical
Publication of EP1134359B1 publication Critical patent/EP1134359B1/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
    • 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

Definitions

  • the invention relates to a blade lock for the blading a turbine of axial design with the features of the generic term of claim 1 and a method for producing a Bucket lock.
  • From DE-OS 30 28 701 is a padlock for one Turbine blading known in which the blades positively in an undercut, in the circumferential direction extending blade groove of the turbine rotor are used.
  • At the Turbine rotor circumference is at least one threading point provided, in which a positive with the blade root Filler is inserted.
  • the filler is through a fitting tightly pressed that between the wall of the threading point and the filler is hammered in. To increase the The fitting piece is slotted in contact pressure, while driving in a wedge into the slot in the threading point is pressed.
  • the press force acts on the well-known bucket lock Fitting piece or the wedge on the blade root and thus on the Turbine rotor itself. This can happen with one driven too tight Wedge to tension and warp the turbine rotor to lead. Warm run behavior can occur during turbine operation of the turbine runner are negatively affected, leading to a Can lead to an increase in wave vibrations.
  • the invention has for its object the generic Shovel lock to be designed so that no pressing force the turbine runner is exercised.
  • the filler is in the designed according to the invention Threading point held in the axial direction such that it is not pressed against the blade root, but at the Wedging in the threading point in the turbine rotor is supported.
  • the clamping force between the filler and the wedge acts thereby no longer on the blade root, and the axial Contact pressure is no longer due to the blade groove passed through.
  • the turbine runner does not experience any axial Bracing.
  • the introduction of the shovel lock cannot a curvature of the turbine rotor during the Manufacturing process. A negative influence of one too tightly fitted padlock on the Warm run behavior of the turbine rotor is excluded.
  • Each Blade of a blade groove including the final blade finds the same blade groove dimensions and clamping conditions in front.
  • the invention is generally applicable for axial turbines Design in overpressure or constant pressure design for steam turbines and process gas or residual gas turbines and in a special way for Shovel locks for shovel feet in hammerhead or Double hammer head construction.
  • a blade groove 2 with an undercut Blade groove contour incised In the turbine runner 1 of an axial type turbine is in Circumferential direction a blade groove 2 with an undercut Blade groove contour incised.
  • rotating blades 3 used which consist of a Airfoil 4 exist, which is a 5 in a blade root 6 merges. Instead of a rhomboid also a rectangle in question.
  • the blade feet 6 engage with one the contour corresponding to the blade groove contour into the blade groove 2 on. This contour is in this embodiment as Double hammer head trained.
  • Threading point 7 is provided, via which the blades 3 into the Blade groove 2 are introduced. After inserting the Scoops 3 become a filler 8 in the threading point 7 used, the one corresponding to the blade groove contour has and with this contour in the blade root 6 of Final blade engages.
  • the filler 8 is in the Threading point 7 wedged by a wedge 9 on which the Blade 3 facing away from the filler 8 in the Threading point 7 is driven.
  • the cross section of the threading point 7 receiving the filler 8 widens conically starting from the blade groove 2.
  • the side walls of the threading point 7 each form an angle ⁇ 1 , ⁇ 2 with the longitudinal axis of the blade 3. This angle results from the angle of the blade rhomboid.
  • the angles can be different from case to case, also among one another in the blade lock.
  • the filler 8 also has two tapered side surfaces adapted to the threading point 7.
  • the wedge 9 resting on the back of the filling piece 8 is so driven far into the threading point 7 that between the Front edge of the wedge 9 and the bottom of the threading point 7 Distance remains.
  • the wedge 9 is by two grub screws 10 secured. These grub screws 10 are in holes screwed in on the contact surface of wedge 9 and wall the threading point 7 are introduced into the turbine rotor 1.
  • the parts forming the blade lock are manufactured in the following way.
  • a later blade groove 2 forming pre-turning groove 2 'is screwed in and the Threading point 7 milled.
  • a Threading point 7 is a Blank 8 'for the filler 8 and a wedge blank 9' inserted and by driving the wedge blank 9 'into the threading point 7 tense.
  • the blank 8 'for the filler 8 is except for the Pre-machined blade groove contour.
  • the wedge blank 9 ' is required an excess length or a tapped hole so that after the Completion of the bucket lock can be pulled again.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Turning (AREA)
  • Refuse Collection And Transfer (AREA)
  • Load-Engaging Elements For Cranes (AREA)
EP01103910A 2000-03-14 2001-02-17 Verrou pour aube de turbomachine et sa methode de fabrication Expired - Lifetime EP1134359B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10012381 2000-03-14
DE10012381A DE10012381A1 (de) 2000-03-14 2000-03-14 Schaufelschloss und Verfahren zur Herstellung eines Schaufelschlosses

Publications (3)

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

Family

ID=7634674

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01103910A Expired - Lifetime EP1134359B1 (fr) 2000-03-14 2001-02-17 Verrou pour aube de turbomachine et sa methode de fabrication

Country Status (8)

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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010031693A1 (fr) * 2008-09-22 2010-03-25 Siemens Aktiengesellschaft Rotor axial de turbomachine à système de verrouillage d'aube et son procédé de fabrication
EP2410131A2 (fr) 2010-07-12 2012-01-25 MAN Diesel & Turbo SE Rotor d'une turbomachine
ITCO20130002A1 (it) * 2013-01-23 2014-07-24 Nuovo Pignone Srl Metodo e sistema per autobloccare una pala di chiusura in una macchina rotativa

Families Citing this family (13)

* 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 (fr) * 2005-03-18 2006-10-04 Siemens Aktiengesellschaft Système de fixation des pieds d'aubes et procédé de montage correspondant
US7901187B2 (en) * 2006-06-23 2011-03-08 Siemens Energy, Inc. Turbine rotor blade groove entry slot lock structure
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
PL220908B1 (pl) 2012-08-09 2016-01-29 Gen Electric Sposób instalowania co najmniej jednego odpowiedniego czopa na każdej z jednej lub więcej łopatek turbiny, sposób montażu wielu łopatek turbiny i jednej lub więcej pokryw dla łopatek turbiny oraz sposób regeneracji zespołu wirnikowego układu turbiny
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
US9416670B2 (en) 2013-10-16 2016-08-16 General Electric Company Locking spacer assembly
US9518471B2 (en) 2013-10-16 2016-12-13 General Electric Company Locking spacer assembly
US9512732B2 (en) 2013-10-16 2016-12-06 General Electric Company Locking spacer assembly inserted between rotor blades
ITMI20132124A1 (it) * 2013-12-18 2015-06-19 Franco Tosi Meccanica S P A Stadio rotorico di turbina assiale con tassello di bloccaggio delle radici delle palette
US20150292540A1 (en) * 2014-04-09 2015-10-15 Natel Energy, Inc. Wedge clamping system for beams

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3028701A1 (de) 1980-07-29 1982-02-25 AEG-Kanis Turbinenfabrik GmbH, 8500 Nürnberg Schaufelschloss fuer turbinenbeschaufelung

Family Cites Families (8)

* 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
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 (fr) * 1975-01-30 1976-11-15 Bbc Sulzer Turbomaschinen
CA1114301A (fr) * 1979-06-27 1981-12-15 Ivor J. Roberts Dispositif de verrouillage pour le montage d'aubes de rotor
JPS59192801A (ja) * 1983-04-15 1984-11-01 Hitachi Ltd 着脱容易な動翼固定方法
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 (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3028701A1 (de) 1980-07-29 1982-02-25 AEG-Kanis Turbinenfabrik GmbH, 8500 Nürnberg Schaufelschloss fuer turbinenbeschaufelung

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010031693A1 (fr) * 2008-09-22 2010-03-25 Siemens Aktiengesellschaft Rotor axial de turbomachine à système de verrouillage d'aube et son procédé de fabrication
EP2410131A2 (fr) 2010-07-12 2012-01-25 MAN Diesel & Turbo SE Rotor d'une turbomachine
US8974186B2 (en) 2010-07-12 2015-03-10 Man Diesel & Turbo Se Coupling element segments for a rotor of a turbomachine
ITCO20130002A1 (it) * 2013-01-23 2014-07-24 Nuovo Pignone Srl Metodo e sistema per autobloccare una pala di chiusura in una macchina rotativa
WO2014114589A1 (fr) * 2013-01-23 2014-07-31 Nuovo Pignone Srl Ensemble de verrouillage de godet d'une turbomachine et procédé de fixation
US9422820B2 (en) 2013-01-23 2016-08-23 Nuovo Pignone Srl Method and system for self-locking a closure bucket in a rotary machine

Also Published As

Publication number Publication date
EP1134359B1 (fr) 2005-05-11
JP4009988B2 (ja) 2007-11-21
HUP0100686A2 (hu) 2002-01-28
CZ297759B6 (cs) 2007-03-21
US20010022936A1 (en) 2001-09-20
PL346333A1 (en) 2001-09-24
HU225330B1 (en) 2006-09-28
CZ20004854A3 (cs) 2001-10-17
HUP0100686A3 (en) 2002-05-28
DE50106157D1 (de) 2005-06-16
PL199015B1 (pl) 2008-08-29
JP2001295603A (ja) 2001-10-26
ATE295472T1 (de) 2005-05-15
US6431836B2 (en) 2002-08-13
DE10012381A1 (de) 2001-09-20
EP1134359A3 (fr) 2003-07-30
HU0100686D0 (en) 2001-04-28

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