Rotor blade pulling-off tool
A turbine blade mounting with an improved pulling system for removing and fitting of the blade has the blade foot (3) sliding axially in a keyway (6) on the hub via a profiled grip (5) under the base. A puller (14) braced on the hub engages a lipped grip (7) on one side of the blade base to pull the...
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Main Authors | , , , |
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Format | Patent |
Language | English French German |
Published |
15.06.2005
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Edition | 7 |
Subjects | |
Online Access | Get full text |
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Abstract | A turbine blade mounting with an improved pulling system for removing and fitting of the blade has the blade foot (3) sliding axially in a keyway (6) on the hub via a profiled grip (5) under the base. A puller (14) braced on the hub engages a lipped grip (7) on one side of the blade base to pull the blade along the keyway using a threaded drive. The blade is withdrawn without use of hammers and without damage to the interlocking grip and keyway. The lipped puller grip has a recess in the blade base fitted with lipped bottom edge formed by a rear groove.
Die vorliegende Erfindung betrifft eine Laufschaufel (1) für eine Strömungsmaschine, umfassend ein aerodynamisches Blatt (2) und einen Fuß (3). Der Fuß (3) weist an einer vom Blatt (2) abgewandten Seite einen Verankerungsabschnitt (5) auf. Ein Rotor (4) der Strömungsmaschine weist eine zum Verankerungsabschnitt (5) komplementäre axiale Verankerungsnut (6) auf. Zur radialen Befestigung der Laufschaufel (1) am Rotor (4) ist der Verankerungsabschnitt (5) axial in die Verankerungsnut (6) einschiebbar. Am Fuß (3) ist zumindest eine Abziehkontur (7) ausgebildet, über die mit Hilfe eines dazu komplementären Abziehglieds (15) eine axiale Abziehkraft in die am Rotor (4) befestigte Laufschaufel (1) einleitbar ist. |
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AbstractList | A turbine blade mounting with an improved pulling system for removing and fitting of the blade has the blade foot (3) sliding axially in a keyway (6) on the hub via a profiled grip (5) under the base. A puller (14) braced on the hub engages a lipped grip (7) on one side of the blade base to pull the blade along the keyway using a threaded drive. The blade is withdrawn without use of hammers and without damage to the interlocking grip and keyway. The lipped puller grip has a recess in the blade base fitted with lipped bottom edge formed by a rear groove.
Die vorliegende Erfindung betrifft eine Laufschaufel (1) für eine Strömungsmaschine, umfassend ein aerodynamisches Blatt (2) und einen Fuß (3). Der Fuß (3) weist an einer vom Blatt (2) abgewandten Seite einen Verankerungsabschnitt (5) auf. Ein Rotor (4) der Strömungsmaschine weist eine zum Verankerungsabschnitt (5) komplementäre axiale Verankerungsnut (6) auf. Zur radialen Befestigung der Laufschaufel (1) am Rotor (4) ist der Verankerungsabschnitt (5) axial in die Verankerungsnut (6) einschiebbar. Am Fuß (3) ist zumindest eine Abziehkontur (7) ausgebildet, über die mit Hilfe eines dazu komplementären Abziehglieds (15) eine axiale Abziehkraft in die am Rotor (4) befestigte Laufschaufel (1) einleitbar ist. |
Author | ANNER, EMIL SLOUTSKI, EDOUARD TCHEKANOV, ALEXANDRE TSCHUOR, REMIGI |
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DocumentTitleAlternate | Abziehwerkzeug zum Abziehen einer Laufschaufel Outil d'extraction d'aube de rotor |
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Notes | Application Number: EP20040104337 |
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RelatedCompanies | ALSTOM TECHNOLOGY LTD |
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Snippet | A turbine blade mounting with an improved pulling system for removing and fitting of the blade has the blade foot (3) sliding axially in a keyway (6) on the... |
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SubjectTerms | BLASTING COMBINED OPERATIONS ENGINE PLANTS IN GENERAL HAND TOOLS HEATING LIGHTING MACHINE TOOLS MACHINES OR ENGINES IN GENERAL MANIPULATORS MECHANICAL ENGINEERING METAL-WORKING NOT OTHERWISE PROVIDED FOR NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES OTHER WORKING OF METAL PERFORMING OPERATIONS PORTABLE POWER-DRIVEN TOOLS STEAM ENGINES TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FORFASTENING, CONNECTING, DISENGAGING OR HOLDING TRANSPORTING UNIVERSAL MACHINE TOOLS WEAPONS |
Title | Rotor blade pulling-off tool |
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