EP0745756B1 - Vorrichtung und Verfahren zur Montage von Laufschaufeln - Google Patents

Vorrichtung und Verfahren zur Montage von Laufschaufeln Download PDF

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Publication number
EP0745756B1
EP0745756B1 EP96810313A EP96810313A EP0745756B1 EP 0745756 B1 EP0745756 B1 EP 0745756B1 EP 96810313 A EP96810313 A EP 96810313A EP 96810313 A EP96810313 A EP 96810313A EP 0745756 B1 EP0745756 B1 EP 0745756B1
Authority
EP
European Patent Office
Prior art keywords
mounting
rotor
blades
axial
groove
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.)
Expired - Lifetime
Application number
EP96810313A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0745756A1 (de
Inventor
Peter Hartmann
Michael Hock
Alfred Krähenbühl
Beat Von Arx
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 Switzerland GmbH
Original Assignee
ABB Asea Brown Boveri Ltd
Asea Brown Boveri AB
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 ABB Asea Brown Boveri Ltd, Asea Brown Boveri AB filed Critical ABB Asea Brown Boveri Ltd
Publication of EP0745756A1 publication Critical patent/EP0745756A1/de
Application granted granted Critical
Publication of EP0745756B1 publication Critical patent/EP0745756B1/de
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
    • F01D5/12—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
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/28—Supporting or mounting arrangements, e.g. for turbine casing
    • F01D25/285—Temporary support structures, e.g. for testing, assembling, installing, repairing; Assembly methods using such structures
    • 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
    • F05D2230/00—Manufacture
    • F05D2230/60—Assembly methods
    • 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
    • Y10T29/37—Impeller making apparatus
    • 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
    • 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
    • Y10T29/49826—Assembling or joining
    • Y10T29/49895—Associating parts by use of aligning means [e.g., use of a drift pin or a "fixture"]
    • 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
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53961—Means to assemble or disassemble with work-holder for assembly

Definitions

  • the invention relates to an apparatus and a method for Assembly of blades with essentially axial feet into the corresponding axial grooves of a rotor Fluid machine.
  • Such devices and methods for the assembly of rotor blades with essentially axial feet in the corresponding axial grooves of a rotor of a turbomachine are known see e.g. the document US-A-1 720 729. They are used to assemble blades Row of blades needed, the blades of which, for example. with specifically molded cover bands, platforms or with shovel feet are formed with overlaps. To the last shovel Being able to axially mount a row of blades becomes a special blade needed. These special blades are in theirs Manufacturing very expensive and assembly requires special Effort, or is not always for technical reasons possible. Next is the use of special blades logistically very complex.
  • the invention has for its object in a device for the assembly of blades and the associated procedure the assembly of rotor blades of the type mentioned to simplify with axial feet.
  • this is achieved in that the assembly device from a radially outer headboard with at least one, essentially the axial root of the blade corresponding axial groove and a radially inner Foot part for mounting in a groove running around the rotor consists.
  • the advantages of the invention include that blades with axial feet are inserted radially can be. This allows the blades without Consideration of an axial displacement can be designed. That means that bsw. Cover tapes, platforms or Bucket feet can have any shape.
  • Rotary grooves are already present, for example. to record of heat accumulation segments in the case of gas turbine rotors. These circumferential grooves can then be used to mount the blades be used.
  • blades 1 are blades 1, consisting of a blade root 1A and airfoil 1B, in axial grooves 11a of a rotor 10 used.
  • a platform 3 arranged. At the contact surfaces of this Platforms are sealed using sealing strips 5, which are inserted in sealing grooves 4.
  • FIG. 3 shows a one-piece assembly device 6, consisting of a foot part 7 and a head part 8.
  • head part 8 is shaped according to the axial groove 11a Axial groove 11b arranged.
  • A is now in the axial groove 11b Blade root 1A of a blade 1 inserted.
  • each the sealing strips 5 are inserted before the blades 1 by means of the mounting device 6 along the circumferential groove 12a are pushed together.
  • the sealing strips 5 not axially after the installation of the blades 1 are inserted into the sealing grooves 4 on the rotor 10 need, they can essentially be shaped arbitrarily his.
  • the whole Blade row R is now, using the axial displacement due to the games between the Platforms 3, piece by piece in the axial grooves 11a of the Rotor pushed. If all blades 1 with their Blade feet 1A inserted in the axial grooves 11a of the rotor are, the mounting devices 6 can not shown filling opening of the circumferential groove 12a of the Rotor can be removed. Now the heat accumulation segments 9 be inserted into the circumferential groove 12a.
  • FIG 5 shows an annular auxiliary device 21 mounted on the rotor become. This is done through a detachable connection, preferably by means of screws 20.
  • the assembly of the Blades 1 then takes place by means of the mounting device 6 exactly the same as described above for the circumferential groove 12a.
  • Fig. 6 and Fig. 7 show an economically particularly advantageous Execution of a mounting device 6A, consisting of a head part 31 and a foot part 30. It consists of a Flat material, e.g. made of sheet metal. Parts 30 and 31 can be cut out of the flat material, or by punching out or laser cutting. The foot part 30 then only has to still to be reshaped. The two parts of the head part 31 are connected to the foot part 30 via a seam 32.
  • the mounting device 6A is used here for simultaneous and rapid Installation of two blades 1 with inclined axial feet. For this purpose, there are two oblique axial grooves in the mounting device 6A 33 arranged to receive two blade feet.
  • the mounting device can be used anywhere with any axial grooves become.
  • the number of axial grooves per mounting device is essentially arbitrary. It hangs bsw. from the Blade size, blade weight, rotor diameter and the size of the filling opening.
  • the execution of the mounting device is arbitrary, for example. can the foot part from one Solid material can be produced, the head part as in Fig. 6 and 7 from a flat material, or vice versa.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
EP96810313A 1995-06-02 1996-05-17 Vorrichtung und Verfahren zur Montage von Laufschaufeln Expired - Lifetime EP0745756B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19520274A DE19520274A1 (de) 1995-06-02 1995-06-02 Vorrichtung und Verfahren zur Montage von Laufschaufeln
DE19520274 1995-06-02

Publications (2)

Publication Number Publication Date
EP0745756A1 EP0745756A1 (de) 1996-12-04
EP0745756B1 true EP0745756B1 (de) 2000-03-22

Family

ID=7763517

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96810313A Expired - Lifetime EP0745756B1 (de) 1995-06-02 1996-05-17 Vorrichtung und Verfahren zur Montage von Laufschaufeln

Country Status (6)

Country Link
US (1) US5737816A (ko)
EP (1) EP0745756B1 (ko)
JP (1) JPH08326504A (ko)
KR (1) KR970001851A (ko)
CN (1) CN1087389C (ko)
DE (2) DE19520274A1 (ko)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5758416A (en) * 1996-12-05 1998-06-02 General Electric Company Method for repairing a turbine engine vane segment
US6061886A (en) * 1997-07-11 2000-05-16 Honda Giken Kogyo Kabushiki Kaisha Turbine blade fitting apparatus and fitting method
DE59906856D1 (de) 1999-02-12 2003-10-09 Alstom Switzerland Ltd Befestigung von Laufschaufeln einer Strömungsmachine
US7353588B2 (en) * 2003-06-20 2008-04-08 General Electric Company Installation tool for assembling a rotor blade of a gas turbine engine fan assembly
DE10346384A1 (de) * 2003-09-29 2005-04-28 Rolls Royce Deutschland Turbinenschaufelkranz
DE102004016174A1 (de) * 2004-03-30 2005-10-20 Alstom Technology Ltd Baden Spaltdichtung zum Abdichten eines Spalts zwischen zwei benachbarten Bauteilen
US7975354B2 (en) * 2007-02-08 2011-07-12 United Technologies Corporation Bladed disk assembly method and impact device
DE102007039175A1 (de) * 2007-08-20 2009-07-02 Rolls-Royce Deutschland Ltd & Co Kg Gasturbinenschaufel
JP4939613B2 (ja) * 2008-01-16 2012-05-30 三菱重工業株式会社 タービン動翼
CN101285401B (zh) * 2008-06-03 2010-06-02 东方电气集团东方汽轮机有限公司 枞树型叶根汽轮机动叶片及其锁口叶片
US8046886B2 (en) * 2009-12-30 2011-11-01 General Electric Company Fixture for mounting articulated turbine buckets
FR3008448B1 (fr) * 2013-07-15 2018-01-05 Safran Aircraft Engines Dispositif de depose pour aubes
US10125635B2 (en) 2015-01-12 2018-11-13 General Electric Company Fixture and method for installing turbine buckets
US10883386B2 (en) * 2017-06-21 2021-01-05 Mitsubishi Hitachi Power Systems Americas, Inc. Methods and devices for turbine blade installation alignment
EP3438410B1 (en) 2017-08-01 2021-09-29 General Electric Company Sealing system for a rotary machine
FR3090030B1 (fr) * 2018-12-12 2020-11-20 Safran Aircraft Engines Dispositif de maintien pour le démontage d’une roue à aubes de turbomachine et procédé l’utilisant
US11808164B1 (en) * 2022-08-19 2023-11-07 Pratt & Whitney Canada Corp. Simultaneously assembling rotor blades from a gas turbine engine rotor disk

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA522707A (en) * 1956-03-13 O. Creek John Method and apparatus for making hollow blades
FR536847A (fr) * 1920-05-25 1922-05-10 Perfectionnements à la fabrication des aubes de turbines
US1720729A (en) * 1928-03-29 1929-07-16 Westinghouse Electric & Mfg Co Blade fastening
US2240743A (en) * 1937-11-26 1941-05-06 Allis Chalmers Mfg Co Apparatus for attaching turbine blades
NL295111A (ko) * 1962-07-11
US4016636A (en) * 1974-07-23 1977-04-12 United Technologies Corporation Compressor construction
US4094615A (en) * 1976-12-27 1978-06-13 Electric Power Research Institute, Inc. Blade attachment structure for gas turbine rotor
US4171799A (en) * 1978-06-26 1979-10-23 Elko George A Frame assembly jig
GB2171150B (en) * 1985-02-12 1989-07-26 Rolls Royce Plc Bladed rotor assembly for a turbomachine
US4702673A (en) * 1985-10-18 1987-10-27 General Electric Company Method for assembly of tangential entry dovetailed bucket assemblies on a turbomachine bucket wheel
US4904160A (en) * 1989-04-03 1990-02-27 Westinghouse Electric Corp. Mounting of integral platform turbine blades with skewed side entry roots
US4944082A (en) * 1989-04-27 1990-07-31 Hewlett Packard Co. Method of providing a sheet metal housing with precisely positioned mounting references
US5257442A (en) * 1989-09-07 1993-11-02 Honda Giken Kabushiki Kaisha Apparatus for assembling workpieces
US5001830A (en) * 1989-10-23 1991-03-26 Westinghouse Electric Corp. Method for assembling side entry control stage blades in a steam turbine
US5026032A (en) * 1990-02-22 1991-06-25 Southern California Edison Blade assembly tool

Also Published As

Publication number Publication date
US5737816A (en) 1998-04-14
JPH08326504A (ja) 1996-12-10
CN1144877A (zh) 1997-03-12
DE19520274A1 (de) 1996-12-05
CN1087389C (zh) 2002-07-10
DE59604723D1 (de) 2000-04-27
EP0745756A1 (de) 1996-12-04
KR970001851A (ko) 1997-01-24

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