JPS57143104A - Moving vane loosening preventer - Google Patents

Moving vane loosening preventer

Info

Publication number
JPS57143104A
JPS57143104A JP2846381A JP2846381A JPS57143104A JP S57143104 A JPS57143104 A JP S57143104A JP 2846381 A JP2846381 A JP 2846381A JP 2846381 A JP2846381 A JP 2846381A JP S57143104 A JPS57143104 A JP S57143104A
Authority
JP
Japan
Prior art keywords
stopper
engaging
moving vane
engaging part
disc
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
JP2846381A
Other languages
Japanese (ja)
Inventor
Takashi Nagaoka
Yoshiaki Abe
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 JP2846381A priority Critical patent/JPS57143104A/en
Publication of JPS57143104A publication Critical patent/JPS57143104A/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

Landscapes

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

Abstract

PURPOSE:To improve reliability of preventing a moving vane from loosening and ease replacement of parts in such a way that a groove equipped with an engaging part is provided at the dovetail part of a moving vane, a stopper is provided for engaging with the engaging part, and after engaging, turning of the stopper can be obstructed. CONSTITUTION:A groove 7 equipped with an engaging part 7a is provided on the bottom of the dovetail part 1a of a moving vane 1, a through hole 8 is made at the outer peripheral part of a disc 3 which is opposite to the engaging part 7a, and a stopper 9 equipped with an engaging part 9a is engaged with the hole 8. In addition, a ring 10 for preventing the stopper 9 from falling off the disc 3 is attached to the inside of the disc 3. In the event that the dovetail 1a of the moving vane 1 is provided at the dovetail groove 3a on the disc 3, and if the stopper 9 is turned so that the engaging part 9a can be engaged with the engaging part 7a, turning of the stopper 9 is obstructed by means of a bifurcate part 9b of the stopper 9 and an engaging groove 8a of the hole 8, and the stopper 9 is in no case to be fallen off by means of the ring 10 during the stop of a rotor and by means of centrifugal force during the turning of the rotor.
JP2846381A 1981-03-02 1981-03-02 Moving vane loosening preventer Pending JPS57143104A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2846381A JPS57143104A (en) 1981-03-02 1981-03-02 Moving vane loosening preventer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2846381A JPS57143104A (en) 1981-03-02 1981-03-02 Moving vane loosening preventer

Publications (1)

Publication Number Publication Date
JPS57143104A true JPS57143104A (en) 1982-09-04

Family

ID=12249344

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2846381A Pending JPS57143104A (en) 1981-03-02 1981-03-02 Moving vane loosening preventer

Country Status (1)

Country Link
JP (1) JPS57143104A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1728972A3 (en) * 2005-05-31 2011-05-04 Rolls-Royce Deutschland Ltd & Co KG Blocking element for a turbine blade
WO2014025758A1 (en) * 2012-08-07 2014-02-13 Solar Turbines Incorporated Turbine blade staking pin
DE102009003712B4 (en) * 2008-04-04 2014-03-27 General Electric Co. Axial compressor blade holder

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1728972A3 (en) * 2005-05-31 2011-05-04 Rolls-Royce Deutschland Ltd & Co KG Blocking element for a turbine blade
DE102009003712B4 (en) * 2008-04-04 2014-03-27 General Electric Co. Axial compressor blade holder
WO2014025758A1 (en) * 2012-08-07 2014-02-13 Solar Turbines Incorporated Turbine blade staking pin

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