EP0236337A1 - Seal ring means for a bladed rotor assembly. - Google Patents
Seal ring means for a bladed rotor assembly.Info
- Publication number
- EP0236337A1 EP0236337A1 EP19860901729 EP86901729A EP0236337A1 EP 0236337 A1 EP0236337 A1 EP 0236337A1 EP 19860901729 EP19860901729 EP 19860901729 EP 86901729 A EP86901729 A EP 86901729A EP 0236337 A1 EP0236337 A1 EP 0236337A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotor
- spacer
- slot
- blades
- ring segment
- 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
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
- F01D5/3007—Fixing blades to rotors; Blade roots ; Blade spacers of axial insertion type
- F01D5/3015—Fixing blades to rotors; Blade roots ; Blade spacers of axial insertion type with side plates
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Des agencements de rotor à aubes amovibles sont utilisés avec des turbines à gaz pour réduire les coûts et accroître la facilité d'entretien. Des structures complexes ont été utilisées dans le passé pour maintenir les aubes dans le rotor et pour sceller l'espace intermédiaire. Des outils et des procédés complexes étaient nécessaires pour remplacer des aubes usées ou endommagées. Le remplacement des aubes selon cette invention rend l'entretien moins complexe et réduit les coûts de maintenance. L'agencement (10) de rotor à aubes comprend un rotor (14) pourvu de fentes (40), une rainure (62) tournée vers l'extérieur et un évidement (23) dans le rotor (14). Les aubes (16) sont montées dans les fentes (40) et pourvues d'une rainure (64) tournée vers l'intérieur. Les rainures (62, 64) forment une fente annulaire en T (20). Un segment annulaire (74) et une pièce d'écartement (82) sont piégés de façon rotative dans la fente en T (20) et un dispositif (26) empêche la rotation du segment annulaire (74) et/ou de la pièce d'écartement (82) par raport au rotor (14). L'agencement de rotor (10) permet le remplacement individuel d'aubes endommagées (16) par une technique de démontage-montage simple, peu coûteuse et à l'aide d'outils peu coûteux. Le dispositif anti-rotatif (26) est enlevé du rotor et on met en rotation le segment annulaire (74) et la pièce d'écartement (82) jusqu'à aligner l'évidement (23) et la pièce d'écartement (82). On fait glisser la pièce d'écartement (82) pour l'enlever de la fente en T (20). Le segment annulaire (74) est aligné de façon à permettre le remplacement de chaque aube endommagée (16). Une fois que l'on a remplacé toutes les aubes endommagées (16), on aligne le segment annulaire (74) avec l'évidement, on ré-intoduit la pièce d'écartement (82) et on met en rotation le segment annulaire (74) et la pièce d'écartement (82) jusqu'à une position où le dispositif anti-rotatif (26) est attaché de manière fixe au rotor (14).Removable vane rotor arrangements are used with gas turbines to reduce costs and increase ease of maintenance. Complex structures have been used in the past to hold the blades in the rotor and to seal the gap. Complex tools and procedures were required to replace worn or damaged blades. Replacing the blades according to this invention makes maintenance less complex and reduces maintenance costs. The vane rotor arrangement (10) includes a rotor (14) with slots (40), a groove (62) facing outward and a recess (23) in the rotor (14). The vanes (16) are mounted in the slots (40) and provided with a groove (64) facing inwards. The grooves (62, 64) form an annular T-shaped slot (20). An annular segment (74) and a spacer (82) are rotatably trapped in the T-slot (20) and a device (26) prevents rotation of the annular segment (74) and / or the d 'spacing (82) relative to the rotor (14). The rotor arrangement (10) allows individual replacement of damaged blades (16) by a simple disassembly-assembly technique, inexpensive and using inexpensive tools. The anti-rotary device (26) is removed from the rotor and the annular segment (74) and the spacer (82) are rotated until the recess (23) and the spacer (82) are aligned. ). Slide the spacer (82) to remove it from the T-slot (20). The annular segment (74) is aligned so as to allow the replacement of each damaged vane (16). Once all the damaged blades (16) have been replaced, the annular segment (74) is aligned with the recess, the spacer (82) is re-inserted and the annular segment is rotated ( 74) and the spacer (82) to a position where the anti-rotation device (26) is fixedly attached to the rotor (14).
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US77545185A | 1985-09-12 | 1985-09-12 | |
US775451 | 1985-09-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0236337A1 true EP0236337A1 (en) | 1987-09-16 |
EP0236337B1 EP0236337B1 (en) | 1989-03-01 |
Family
ID=25104469
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19860901729 Expired EP0236337B1 (en) | 1985-09-12 | 1985-12-06 | Seal ring means for a bladed rotor assembly |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0236337B1 (en) |
JP (1) | JPS63500879A (en) |
CA (1) | CA1235071A (en) |
DE (1) | DE3568465D1 (en) |
WO (1) | WO1987001761A1 (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2603333B1 (en) * | 1986-09-03 | 1990-07-20 | Snecma | TURBOMACHINE ROTOR COMPRISING A MEANS OF AXIAL LOCKING AND SEALING OF BLADES MOUNTED IN AXIAL PINS OF THE DISC AND MOUNTING METHOD |
US5068740A (en) * | 1988-07-21 | 1991-11-26 | Magnascreen Corporation | Modular flat-screen television displays and modules and circuit drives therefor |
US4982272A (en) * | 1988-07-21 | 1991-01-01 | Magnascreen Corporation | Modular flat-screen color television displays and modules and circuit drives therefor |
US4980774A (en) * | 1988-07-21 | 1990-12-25 | Magnascreen Corporation | Modular flat-screen television displays and modules and circuit drives therefor |
US5079636A (en) * | 1988-07-21 | 1992-01-07 | Magnascreen Corporation | Modular flat-screen television displays and modules and circuit drives therefor |
GB9517369D0 (en) * | 1995-08-24 | 1995-10-25 | Rolls Royce Plc | Bladed rotor |
ATE441776T1 (en) * | 2007-01-09 | 2009-09-15 | Siemens Ag | AXIAL ROTOR SECTION FOR A ROTOR OF A TURBINE |
FR2939832B1 (en) * | 2008-12-11 | 2011-01-07 | Turbomeca | TURBINE WHEEL EQUIPPED WITH AXIAL HOLDING DEVICE LOCKING BLADES WITH RESPECT TO A DISK. |
EP3438410B1 (en) | 2017-08-01 | 2021-09-29 | General Electric Company | Sealing system for a rotary machine |
FR3127255A1 (en) * | 2021-09-23 | 2023-03-24 | Safran Aircraft Engines | Rotary assembly for turbomachine |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB905582A (en) * | 1960-05-26 | 1962-09-12 | Rolls Royce | Improvements relating to the sealing of blades in a bladed rotor |
GB954323A (en) * | 1962-03-17 | 1964-04-02 | Rolls Royce | Improvements in or relating to bladed rotors for fluid flow machines such as turbines |
US3300179A (en) * | 1966-04-22 | 1967-01-24 | Gen Motors Corp | Blade stalk cover plate |
GB1095830A (en) * | 1966-09-13 | 1967-12-20 | Rolls Royce | Bladed rotor for a fluid flow machine such as a gas turbine engine |
GB1236920A (en) * | 1967-07-13 | 1971-06-23 | Rolls Royce | Bladed fluid flow machine |
FR2524933B1 (en) * | 1982-04-13 | 1987-02-20 | Snecma | AXIAL LOCKING DEVICE FOR TURBINE OR COMPRESSOR ROTOR BLADES |
-
1985
- 1985-12-06 WO PCT/US1985/002402 patent/WO1987001761A1/en active IP Right Grant
- 1985-12-06 JP JP86502153A patent/JPS63500879A/en active Pending
- 1985-12-06 EP EP19860901729 patent/EP0236337B1/en not_active Expired
- 1985-12-06 DE DE8686901729T patent/DE3568465D1/en not_active Expired
-
1986
- 1986-09-09 CA CA000517815A patent/CA1235071A/en not_active Expired
Non-Patent Citations (1)
Title |
---|
See references of WO8701761A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO1987001761A1 (en) | 1987-03-26 |
CA1235071A (en) | 1988-04-12 |
DE3568465D1 (en) | 1989-04-06 |
JPS63500879A (en) | 1988-03-31 |
EP0236337B1 (en) | 1989-03-01 |
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Legal Events
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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