JPS6469702A - Fixation of movable blade of axial flow rotary machine - Google Patents

Fixation of movable blade of axial flow rotary machine

Info

Publication number
JPS6469702A
JPS6469702A JP62223938A JP22393887A JPS6469702A JP S6469702 A JPS6469702 A JP S6469702A JP 62223938 A JP62223938 A JP 62223938A JP 22393887 A JP22393887 A JP 22393887A JP S6469702 A JPS6469702 A JP S6469702A
Authority
JP
Japan
Prior art keywords
movable blade
insertion hole
blade
root part
spring member
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.)
Pending
Application number
JP62223938A
Other languages
Japanese (ja)
Inventor
Masakazu Takazumi
Kiyoshi Namura
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP62223938A priority Critical patent/JPS6469702A/en
Publication of JPS6469702A publication Critical patent/JPS6469702A/en
Pending legal-status Critical Current

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
    • F01D5/32—Locking, e.g. by final locking blades or keys
    • F01D5/326—Locking of axial insertion type blades by other means
    • 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
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/50—Intrinsic material properties or characteristics
    • F05D2300/505—Shape memory behaviour

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

PURPOSE:To facilitate the mounting and demounting of a movable blade by forming an insertion hole into the disc groove part of a rotor disc and forming an insertion hole corresponding to the blade root part of the movable blade and fitting the engaging members energized by a spring member made of shape memory alloy into these insertion holes. CONSTITUTION:In the constitution in which a movable blade 1 is assembled by fitting the blade root part 2 of the movable blade 1 into the disc groove part 4 of a rotor disc 3, an engaging member insertion hole 9 and a blade root part groove 12 which communicates to the insertion hole 9 from the edge surface of the blade root part 2 are formed at the blade root part 2 of the movable blade 1. Further, an engaging member inserting hole 8 is formed at the disc groove part 4, and an engagement part 10 is fitted through a spring member 11 made of shape memory alloy into said engaging member insertion hole 8. The spring member 11 restores the shape (contraction form) before deformation when heated over a certain temperature, and in this state, the movable blade 1 is mounted and demounted, and in the ordinary state, the engaging member 10 is extended between the insertion holes 8 and 9 by the extension deformation of the spring member 11, and the slip-off of the movable blade 1 is prevented.
JP62223938A 1987-09-09 1987-09-09 Fixation of movable blade of axial flow rotary machine Pending JPS6469702A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62223938A JPS6469702A (en) 1987-09-09 1987-09-09 Fixation of movable blade of axial flow rotary machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62223938A JPS6469702A (en) 1987-09-09 1987-09-09 Fixation of movable blade of axial flow rotary machine

Publications (1)

Publication Number Publication Date
JPS6469702A true JPS6469702A (en) 1989-03-15

Family

ID=16806057

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62223938A Pending JPS6469702A (en) 1987-09-09 1987-09-09 Fixation of movable blade of axial flow rotary machine

Country Status (1)

Country Link
JP (1) JPS6469702A (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4108085A1 (en) * 1990-03-19 1991-09-26 Gen Electric BLADE FOR A GAS TURBINE ENGINE
KR100823766B1 (en) * 2002-10-31 2008-04-21 제너럴 일렉트릭 캄파니 Continual radial loading device for steam turbine reaction type buckets and related method
US7467925B2 (en) 2004-07-22 2008-12-23 Siemens Aktiengesellschaft Securing device for a moving blade of a turbomachine
EP2088287A1 (en) * 2008-02-08 2009-08-12 Siemens Aktiengesellschaft Assembly for axial protection on rotor blades in a rotor of a gas turbine
US7677870B1 (en) * 2005-09-16 2010-03-16 Florida Turbine Techologies, Inc. Screw in blade/vane
EP2372095A1 (en) * 2010-03-26 2011-10-05 Siemens Aktiengesellschaft Method and device for fixing a blade to a rotor using a memory shape element
US20120087799A1 (en) * 2010-10-12 2012-04-12 General Electric Company Axial retention device for turbine system
WO2013017805A1 (en) * 2011-08-03 2013-02-07 Snecma Turbine-engine impeller
US8496439B2 (en) * 2010-03-17 2013-07-30 Siemens Energy, Inc. Turbomachine blade locking structure including shape memory alloy
JP2014129732A (en) * 2012-12-28 2014-07-10 Hitachi Ltd Turbine rotor
JP2018505994A (en) * 2015-01-20 2018-03-01 シーメンス アクティエンゲゼルシャフト Blade fastening mechanism with locking device for turbine blade
CN111377542A (en) * 2020-03-25 2020-07-07 吕小忠 Ecological bed of floating is with aquatic plant root system insect-attack prevention device
US11709981B2 (en) 2019-03-25 2023-07-25 Aurora Labs Ltd. Dynamic CFI using line-of-code behavior and relation models

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4108085A1 (en) * 1990-03-19 1991-09-26 Gen Electric BLADE FOR A GAS TURBINE ENGINE
KR100823766B1 (en) * 2002-10-31 2008-04-21 제너럴 일렉트릭 캄파니 Continual radial loading device for steam turbine reaction type buckets and related method
US7467925B2 (en) 2004-07-22 2008-12-23 Siemens Aktiengesellschaft Securing device for a moving blade of a turbomachine
US7677870B1 (en) * 2005-09-16 2010-03-16 Florida Turbine Techologies, Inc. Screw in blade/vane
EP2088287A1 (en) * 2008-02-08 2009-08-12 Siemens Aktiengesellschaft Assembly for axial protection on rotor blades in a rotor of a gas turbine
WO2009098111A1 (en) * 2008-02-08 2009-08-13 Siemens Aktiengesellschaft Arrangement for axially securing blades in a rotor of a gas turbine
CN101939509A (en) * 2008-02-08 2011-01-05 西门子公司 Arrangement for axially securing blades in a rotor of a gas turbine
US8535012B2 (en) 2008-02-08 2013-09-17 Siemens Aktiengesellschaft Arrangement for axially securing blades in a rotor of a gas turbine
US8496439B2 (en) * 2010-03-17 2013-07-30 Siemens Energy, Inc. Turbomachine blade locking structure including shape memory alloy
EP2372095A1 (en) * 2010-03-26 2011-10-05 Siemens Aktiengesellschaft Method and device for fixing a blade to a rotor using a memory shape element
US20120087799A1 (en) * 2010-10-12 2012-04-12 General Electric Company Axial retention device for turbine system
CN102444479A (en) * 2010-10-12 2012-05-09 通用电气公司 Axial retention device for turbine system
WO2013017805A1 (en) * 2011-08-03 2013-02-07 Snecma Turbine-engine impeller
FR2978796A1 (en) * 2011-08-03 2013-02-08 Snecma TURBOMACHINE AUBES WHEEL
US9540093B2 (en) 2011-08-03 2017-01-10 Snecma Bladed rotor wheel for a turbine engine
JP2014129732A (en) * 2012-12-28 2014-07-10 Hitachi Ltd Turbine rotor
JP2018505994A (en) * 2015-01-20 2018-03-01 シーメンス アクティエンゲゼルシャフト Blade fastening mechanism with locking device for turbine blade
US10487674B2 (en) 2015-01-20 2019-11-26 Siemens Aktiengesellschaft Blade fastening mechanism having a securing device for turbine blades
US11709981B2 (en) 2019-03-25 2023-07-25 Aurora Labs Ltd. Dynamic CFI using line-of-code behavior and relation models
US11836428B2 (en) 2019-03-25 2023-12-05 Aurora Labs Ltd. Identifying software interdependencies using line-of-code behavior and relation models
CN111377542A (en) * 2020-03-25 2020-07-07 吕小忠 Ecological bed of floating is with aquatic plant root system insect-attack prevention device
CN111377542B (en) * 2020-03-25 2022-07-22 吕小忠 Aquatic plant root system insect-attack prevention device for ecological floating bed

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