EP0291040B1 - Procédé de montage d'un rotor de turbine à vapeur constitué de disques frettés sur un arbre et fourchette permettant ledit montage - Google Patents

Procédé de montage d'un rotor de turbine à vapeur constitué de disques frettés sur un arbre et fourchette permettant ledit montage Download PDF

Info

Publication number
EP0291040B1
EP0291040B1 EP88107601A EP88107601A EP0291040B1 EP 0291040 B1 EP0291040 B1 EP 0291040B1 EP 88107601 A EP88107601 A EP 88107601A EP 88107601 A EP88107601 A EP 88107601A EP 0291040 B1 EP0291040 B1 EP 0291040B1
Authority
EP
European Patent Office
Prior art keywords
pegs
female
cavities
male
disks
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
EP88107601A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0291040A1 (fr
Inventor
Daniel Fleury
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.)
Alstom Holdings SA
Original Assignee
GEC Alsthom SA
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 GEC Alsthom SA filed Critical GEC Alsthom SA
Priority to AT88107601T priority Critical patent/ATE63364T1/de
Publication of EP0291040A1 publication Critical patent/EP0291040A1/fr
Application granted granted Critical
Publication of EP0291040B1 publication Critical patent/EP0291040B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F01D5/02—Blade-carrying members, e.g. rotors
    • F01D5/06—Rotors for more than one axial stage, e.g. of drum or multiple disc type; Details thereof, e.g. shafts, shaft connections
    • F01D5/066—Connecting means for joining rotor-discs or rotor-elements together, e.g. by a central bolt, by clamps
    • 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
    • Y10T29/49799—Providing transitory integral holding or handling portion
    • 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
    • Y10T29/53978—Means to assemble or disassemble including means to relatively position plural work parts

Definitions

  • the present invention relates to a method for mounting a steam turbine rotor consisting of hooped discs on a shaft, said discs being provided with facing cavities, in which female pins are placed in said cavities of a disc and male studs in the facing cavities belonging to the adjacent disc, then each of the discs is hooped by placing the male studs of said disc in the female pawns of the adjacent disc already shrunk.
  • the mounting method according to the invention making it possible to eliminate these risks is characterized in that there are means of spacing in female pawns before introducing the male pawns into the female pawns so that the male pawns are not in contact with the female pins, then remove the spacing means.
  • the spacing means are not removed until after the overspeed tests, which makes it possible to guarantee the presence of a residual clearance between the positioning pins during normal operation.
  • the invention also relates, for application of the method, to a steam turbine rotor made up of discs hooped on a shaft, said discs being provided with cavities facing each other, female pins being placed in said cavities of a disc and pawns.
  • male in the cavities opposite belonging to the adjacent disc the male pins each comprising a stud with two walls parallel to the axis of the rotor spaced from a and the female studs a complementary groove with two walls parallel to the walls of the stud separated from a + 2d, characterized in that it comprises in the mounting state forks each comprising a handle with two teeth of thickness slightly less than d whose outer edges are spaced from a + 2d and which disposed against the walls of the groove.
  • the two teeth have two flaps in a plane perpendicular to the plane of the teeth and coming to be placed on the surface of the female pin on either side of the groove.
  • the turbine rotor to which the invention is applied comprises a shaft 1 around which discs 2 bearing vanes 3 are hooped.
  • the discs 2 are provided with cylindrical cavities 4 facing each other.
  • the cavities 4 on one face of a disk are provided with female pins 5 and the cavities on the face of the neighboring disk which come opposite the female pins 5 are provided with male pins 6 (see FIGS. 2, 3 and 4).
  • the male pin 6 comprises a head 7 filling the cavity 4 and a tenon 8 with two walls parallel to the axis of the rotor spaced by a distance a.
  • the female pin has inside the head 9 a groove 10 complementary to the stud 8 but of width a + 2d.
  • the height of the tenon 8 is less than the depth of the groove 10.
  • the pins 5, 6 are locked in the cavities 4 by keys 11.
  • a fork provided with a handle 13 and two teeth 14 is used for each assembly between two pins 5, 6.
  • the two teeth 14 have a thickness less than d and their outer edges 15 are spaced from a + 2d. .
  • These teeth 14 are provided with two flaps 16 outwardly which come to bear on either side of the groove 10 on the surface 17 of the female pin 5 when the teeth are arranged in the groove.
  • the flaps 16 are arranged at right angles to the teeth 14.
  • the discs 2 have been provided with notches 18 on the face which receives the female pins 5. These notches 18 connect the external surface of the disc 2 to the cavities 4. In each notch 18 there is a fork 12.
  • the handle 13 of the fork 12 is integral with lugs 19 which are bolted to the disc 2 thus holding the fork 12 in place.
  • the forks 12 were mounted on the disc 2 before it was hooped.
  • the male pins 6 of the neighboring disc are fitted into the female pins 5 of the hooped disc. Thanks to the forks 12, the pins 8 of the male pins 6 are not in contact with the grooves 10 of the female pins 5.
  • the forks 12 are kept in place so that the absence of contact is maintained. After these tests, the forks 12 are removed for normal operation of the turbine.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Automatic Assembly (AREA)
  • Braking Arrangements (AREA)
EP88107601A 1987-05-14 1988-05-11 Procédé de montage d'un rotor de turbine à vapeur constitué de disques frettés sur un arbre et fourchette permettant ledit montage Expired - Lifetime EP0291040B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88107601T ATE63364T1 (de) 1987-05-14 1988-05-11 Gabelfoermiges montagehilfsstueck, um den zusammenbau eines scheibenrotors fuer eine dampfturbine zu erleichtern.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8706784A FR2615242B1 (fr) 1987-05-14 1987-05-14 Procede de montage d'un rotor de turbine a vapeur constitue de disques frettes sur un arbre et fourchette permettant ledit montage
FR8706784 1987-05-14

Publications (2)

Publication Number Publication Date
EP0291040A1 EP0291040A1 (fr) 1988-11-17
EP0291040B1 true EP0291040B1 (fr) 1991-05-08

Family

ID=9351098

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88107601A Expired - Lifetime EP0291040B1 (fr) 1987-05-14 1988-05-11 Procédé de montage d'un rotor de turbine à vapeur constitué de disques frettés sur un arbre et fourchette permettant ledit montage

Country Status (12)

Country Link
US (2) US4860418A (ja)
EP (1) EP0291040B1 (ja)
JP (1) JPS63302101A (ja)
CN (1) CN1012095B (ja)
AT (1) ATE63364T1 (ja)
CZ (1) CZ329188A3 (ja)
DE (1) DE3862679D1 (ja)
ES (1) ES2022525B3 (ja)
FR (1) FR2615242B1 (ja)
GR (1) GR3002238T3 (ja)
MX (1) MX169353B (ja)
ZA (1) ZA883403B (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120087799A1 (en) * 2010-10-12 2012-04-12 General Electric Company Axial retention device for turbine system
CN103612092B (zh) * 2013-11-21 2015-12-09 国家电网公司 悬吊式水轮发电机组推力头拆卸工艺
US9909595B2 (en) * 2015-07-21 2018-03-06 General Electric Company Patch ring for a compressor

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2179556A (en) * 1933-03-08 1939-11-14 Milo Ab Method of making turbines
US2034238A (en) * 1934-12-29 1936-03-17 John N Karalis Pie rack
US2800706A (en) * 1947-10-17 1957-07-30 Lindblom Erik David Method of manufacturing blade rings for radial flow elastic fluid machines
US2639119A (en) * 1947-11-14 1953-05-19 Lockheed Aircraft Corp Rotor blade attachment means and method
US2818228A (en) * 1954-04-30 1957-12-31 Rolls Royce Rotor for gas-turbine engine with means to locate rotor discs with respect to one another
US3078020A (en) * 1962-04-04 1963-02-19 Richard N Boonstra Horticultural carrying apparatus
DE1284689B (de) * 1962-05-10 1968-12-05 Licentia Gmbh Planscheibenstapel, z. B. aus Planscheiben zusammengesetzter und axial zusammengespannter Laeufer einer thermischen Axialturbine, insbesondere -gasturbine
US3272350A (en) * 1964-09-25 1966-09-13 Westinghouse Electric Corp Method and apparatus for semiconductor wafer handling
US3745628A (en) * 1971-07-29 1973-07-17 Westinghouse Electric Corp Rotor structure and method of construction
FR2295226A1 (fr) * 1974-12-16 1976-07-16 Europ Turb Vapeur Dispositif de clavetage entre disques d'une turbine
US4417425A (en) * 1977-02-11 1983-11-29 Dayton Superior Corporation Apparatus for erecting concrete wall panels
US4494287A (en) * 1983-02-14 1985-01-22 Williams International Corporation Method of manufacturing a turbine rotor
IT1167241B (it) * 1983-10-03 1987-05-13 Nuovo Pignone Spa Sistema perfezionato per il fissaggio degli ugelli statorici alla cassa di una turbina di potenza
GB2193125B (en) * 1986-08-01 1990-07-18 Rolls Royce Plc Gas turbine engine rotor assembly

Also Published As

Publication number Publication date
US4860418A (en) 1989-08-29
ATE63364T1 (de) 1991-05-15
EP0291040A1 (fr) 1988-11-17
CN88102748A (zh) 1988-11-30
FR2615242B1 (fr) 1989-07-07
CN1012095B (zh) 1991-03-20
CZ329188A3 (en) 1993-08-11
GR3002238T3 (en) 1992-12-30
DE3862679D1 (de) 1991-06-13
JPS63302101A (ja) 1988-12-09
ZA883403B (en) 1988-11-15
ES2022525B3 (es) 1991-12-01
US5050287A (en) 1991-09-24
MX169353B (es) 1993-06-30
FR2615242A1 (fr) 1988-11-18

Similar Documents

Publication Publication Date Title
EP0068923B1 (fr) Dispositif de verrouillage d'une aube de rotor de turbomachine
EP0083289B1 (fr) Roue de rotor de turbomachine munie d'un dispositif de retenue axiale et radiale d'aubes sur le disque
EP0081436B1 (fr) Rotor de compresseur ou de turbine dans lequel un disque supporte des aubes à pied marteau et procédé de montage d'un tel rotor
EP0110744B1 (fr) Dispositif de retenue axiale et radiale d'aubes de soufflante
EP1314856B1 (fr) Dispositif de blocage des aubes dans une rainure d'un disque
EP1164251B1 (fr) Dispositif de blocage d'aubes à attaches marteau sur un disque
FR2612249A1 (fr) Aubage mobile pour turbines a vapeur
EP1895103B1 (fr) Aube de rotor d'une turbomachine
EP1760258A2 (fr) Dispositif d`immobilisation d`un anneau de rétention axiale d`une aube
CA2834759C (fr) Rotor de turbomachine avec moyen de retenue axiale des aubes
FR2744169A1 (fr) Dispositif de fixation par rivetage des aubes mobiles sur la roue mobile, notamment d'une turbine d'un moteur a turbine a gaz
EP2366061A1 (fr) Roue de turbine avec système de rétention axiale des aubes
EP0340638B1 (fr) Procédé et dispositif pour l'extraction de paquets d'ailettes de turbine à vapeur
EP0291040B1 (fr) Procédé de montage d'un rotor de turbine à vapeur constitué de disques frettés sur un arbre et fourchette permettant ledit montage
FR2493094A1 (fr) Machine pour travailler le sol
EP0017567B1 (fr) Dispositif de fixation d'aubes sur un rotor de compresseur pour turboréacteur
FR2715968A1 (fr) Rotor à plates-formes rapportées entre les aubes.
FR2896948A1 (fr) Dispositif de fixation de lames a des flasques solidaires d'un arbre rotatif pour machine agricole.
BE1006381A3 (fr) Element de clavette et utilisations de celui-ci pour l'insertion ou l'enlevement de barres de combustible et le demontage d'un jeu de combustible nucleaire.
FR2492906A2 (fr) Dispositif de retenue pour aubes de soufflantes
FR2814495A1 (fr) Systeme de retention amont pour aubes et plates-formes de soufflante
FR2622258A1 (fr) Dispositif de fixation
FR2859509A1 (fr) Arret en rotation des secteurs d'aubes de redresseurs par des barrettes dans les plans de joint du carter
EP0035938B1 (fr) Machine électrique à carcasse composite
FR2459105A1 (fr) Pince pour le soudage par points de deux elements

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

17P Request for examination filed

Effective date: 19890517

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: GEC ALSTHOM SA

17Q First examination report despatched

Effective date: 19900308

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

REF Corresponds to:

Ref document number: 63364

Country of ref document: AT

Date of ref document: 19910515

Kind code of ref document: T

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
REF Corresponds to:

Ref document number: 3862679

Country of ref document: DE

Date of ref document: 19910613

ITF It: translation for a ep patent filed

Owner name: JACOBACCI & PERANI S.P.A.

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GR

Ref legal event code: FG4A

Free format text: 3002238

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 19930518

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19930519

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19930521

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GR

Payment date: 19930528

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19930531

Year of fee payment: 6

Ref country code: AT

Payment date: 19930531

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19930701

Year of fee payment: 6

EPTA Lu: last paid annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19940511

Ref country code: AT

Effective date: 19940511

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19940512

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19940512

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19940531

Ref country code: CH

Effective date: 19940531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19941130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19941201

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
EUG Se: european patent has lapsed

Ref document number: 88107601.2

Effective date: 19941210

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

EUG Se: european patent has lapsed

Ref document number: 88107601.2

REG Reference to a national code

Ref country code: GR

Ref legal event code: MM2A

Free format text: 3002238

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19960417

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19960422

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19960430

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19960524

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19970511

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19970531

BERE Be: lapsed

Owner name: S.A. GEC ALSTHOM

Effective date: 19970531

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19970511

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980203

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 19990301

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050511