JPS5960305U

JPS5960305U - turbine impeller

Info

Publication number: JPS5960305U
Application number: JP15524082U
Authority: JP
Inventors: 幸康尾崎
Original assignee: 株式会社東芝
Priority date: 1982-10-15
Filing date: 1982-10-15
Publication date: 1984-04-20

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来の焼嵌ロータ、ホイールの構造を示す断面
図、第２図は第１図の焼嵌ロータ、ホイ電１図　　　　
　　　１ −ルの部分拡大図、第３図、第４図は本考案による実施
例を示す部分拡大図であり、第３図については、タービ
ン停止時および焼嵌ロータ、ホイール取材時の部分拡大
図、第４図については、ター　−ビン運転時およびロー
フ回転時の部分拡大図である。１・・・ロータ、２・・・ホイーレレ、２ｂ−・・ホイ
ールハバＷ、ａ−・・ラビリンスパツキン、９・・・ア
クシャルキー切大き部、１０−・・アクシャルキー溝部
。５　″Figure 1 is a cross-sectional view showing the structure of a conventional shrink-fitted rotor and wheel. Figure 2 is a diagram of the shrink-fitted rotor in Figure 1 and the wheel structure.
1 - Figures 3 and 4 are partially enlarged views showing an embodiment of the present invention, and Figure 3 is a partially enlarged view when the turbine is stopped and when the shrink-fitted rotor and wheel are covered. 4 is a partially enlarged view during turbine operation and loaf rotation. DESCRIPTION OF SYMBOLS 1...Rotor, 2...Wheel rail, 2b...Wheel hub W, a-...Labyrinth packing, 9...Axial key cut portion, 10-...Axial key groove portion. 5″

Claims

[Scope of utility model registration request]

A wheel is fixed to a rotor, and the wheel is shrink-fitted and an axial key is provided to fix the wheel, characterized in that the depth of the axial key groove formed in the rotor is deeper than the height of the axial key. Turbine blades and root wheel.