JPS57168007A - Turbine runner - Google Patents

Turbine runner

Info

Publication number
JPS57168007A
JPS57168007A JP5168381A JP5168381A JPS57168007A JP S57168007 A JPS57168007 A JP S57168007A JP 5168381 A JP5168381 A JP 5168381A JP 5168381 A JP5168381 A JP 5168381A JP S57168007 A JPS57168007 A JP S57168007A
Authority
JP
Japan
Prior art keywords
blades
projected part
binding
elongation
hub
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
JP5168381A
Other languages
Japanese (ja)
Inventor
Asaharu Toda
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP5168381A priority Critical patent/JPS57168007A/en
Publication of JPS57168007A publication Critical patent/JPS57168007A/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
    • F01D5/12—Blades
    • F01D5/22—Blade-to-blade connections, e.g. for damping vibrations
    • F01D5/225—Blade-to-blade connections, e.g. for damping vibrations by shrouding

Landscapes

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

Abstract

PURPOSE:To prevent the lowering of the strength of a turbine runner by providing projected parts toward the hub of the runner on surfaces of binding metals among blades. CONSTITUTION:A binding metal 3 binding two neighboring blades 2 is provided with a V-shaped projected part 5 toward the hub of the blades 2 between the blades 2. This projected part 5 is shaped by the bending of a press before the boring of a tennon hole by a punch. Especially, the bent direction of the projected part 5 is not toward the outer circumference of blades 2, but toward the inner circumferece. Consequently, even if a thermal elongation or a tensile stress elongation by centrifugal force is given during operation, the binding metal 3 works elastically as an expansion joint near the projected part 5 bent by the press and extends in accordance with the radial elongation of blades. This construction permits to relase the blades 2 from bending work and prevent them from the lowering of the allowance of the strength in their outer ends.
JP5168381A 1981-04-08 1981-04-08 Turbine runner Pending JPS57168007A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5168381A JPS57168007A (en) 1981-04-08 1981-04-08 Turbine runner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5168381A JPS57168007A (en) 1981-04-08 1981-04-08 Turbine runner

Publications (1)

Publication Number Publication Date
JPS57168007A true JPS57168007A (en) 1982-10-16

Family

ID=12893678

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5168381A Pending JPS57168007A (en) 1981-04-08 1981-04-08 Turbine runner

Country Status (1)

Country Link
JP (1) JPS57168007A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4734010A (en) * 1985-05-31 1988-03-29 Bbc Brown, Boveri & Company, Limited Damping element for independent turbomachine blades
US4784571A (en) * 1987-02-09 1988-11-15 Westinghouse Electric Corp. Apparatus and method for reducing blade flop in steam turbine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4734010A (en) * 1985-05-31 1988-03-29 Bbc Brown, Boveri & Company, Limited Damping element for independent turbomachine blades
US4784571A (en) * 1987-02-09 1988-11-15 Westinghouse Electric Corp. Apparatus and method for reducing blade flop in steam turbine

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