JPS601998U

JPS601998U - centrifugal fan impeller

Info

Publication number: JPS601998U
Application number: JP9209083U
Authority: JP
Inventors: 国分　孝友; 壱岐　哲夫; 玄隆辻村
Original assignee: 三菱重工業株式会社
Priority date: 1983-06-17
Filing date: 1983-06-17
Publication date: 1985-01-09

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図より第６図は従来例に関し、第１図は遠心ファ
ンの組立断面図、第２図は第１図の■−■線矢視の断面
図、第３図は羽根車の例の断面図、第４図は第３図のＴ
Ｖ−ＩＶ線矢視の羽根断面図、第５図は羽根と主板の溶
接部を示す斜視図、第６図は回転時の羽根の応力を示す
図表、第７図より第１０図は本考案に係わり、第７図は
一実施例の羽根車を示す断面図、第８図は回倒における
羽根と主板の溶接部を示す斜視図、第９図は他の実施例
を示す断面図、第１０図は他の実施例の断面図である。１１、　２１．　３１・・・・・・主板、１３．　２３
．　３３・・・・・・側板、１２．　２２．　１６．　
２６．　３６・・・・・・羽根。゛Figures 1 to 6 relate to conventional examples; Figure 1 is an assembled sectional view of a centrifugal fan; Figure 2 is a sectional view taken along the line ■-■ in Figure 1; and Figure 3 is an example of an impeller. Figure 4 is a cross-sectional view of T in Figure 3.
A sectional view of the blade taken along the line V-IV, Figure 5 is a perspective view showing the welded part between the blade and the main plate, Figure 6 is a chart showing stress in the blade during rotation, and Figures 7 to 10 show the results of the present invention. 7 is a sectional view showing the impeller of one embodiment, FIG. 8 is a perspective view showing the welded part of the blade and the main plate during rotation, and FIG. 9 is a sectional view showing another embodiment. FIG. 10 is a sectional view of another embodiment. 11, 21. 31... Main plate, 13. 23
．． 33...Side plate, 12. 22. 16.
26. 36... Feather.

Claims

[Scope of utility model registration request]

An impeller for a centrifugal fan characterized in that a part of the blade is integrally constructed with the main plate, the remaining blades are welded, and the welded attachment part between the blade and the main plate is removed from the blade root.