JPH027301U

JPH027301U -

Info

Publication number: JPH027301U
Application number: JP8507988U
Authority: JP
Priority date: 1988-06-29
Filing date: 1988-06-29
Publication date: 1990-01-18

Description

[Brief explanation of drawings]

第１図は本考案による流体機械の翼止溝の例を
示す要部構造断面図、第２図は第１図の―線
断面図、第３図は本考案による第１溝への各動翼
及び最終翼の植込み状態を示す一部平面図、第４
図は第３図の―線断面図である。第５図は従
来の流体機械の翼止溝を示す要部斜視図、第６図
はその動翼及び最終翼の植込み状態を示す一部平
面図、第７図は第６図の―線断面図、第８図
は第７図の―線断面図である。１…回転体、２ａ…第１溝、２ｂ…第２溝、３
…切欠き部、４…動翼、４ａ…動翼翼根部、５…
最終翼、５ａ…最終翼翼根部、６…肩部、９…突
起。 Fig. 1 is a cross-sectional view of the main part structure showing an example of the blade stop groove of a fluid machine according to the present invention, Fig. 2 is a cross-sectional view taken along the line - - in Fig. 1, and Fig. 3 is a cross-sectional view of each movement to the first groove according to the present invention. Partial plan view showing the installed state of the wing and the final wing, No. 4
The figure is a sectional view taken along the line -- in FIG. Fig. 5 is a perspective view of the main part showing the blade stop groove of a conventional fluid machine, Fig. 6 is a partial plan view showing the installed state of the rotor blade and the final blade, and Fig. 7 is a cross section taken along the line - - in Fig. 6. 8 is a sectional view taken along the line -- in FIG. 7. 1... Rotating body, 2a... First groove, 2b... Second groove, 3
... Notch, 4... Moving blade, 4a... Moving blade root, 5...
Final wing, 5a...Final wing root, 6...Shoulder, 9...Protrusion.

Claims

[Scope of utility model registration request]

In a blade stop groove having a circumferential first groove that accommodates the blade root of each rotor blade in order to embed the rotor blade in a rotating body of a fluid machine, a shoulder part that suppresses centrifugal movement of the blade root is continuous in the circumferential direction. The second wing is installed in the
A groove is bored from the bottom surface of the first groove toward the center of rotation, and a protrusion for locking the root of each rotor blade is provided at the upper end of the second groove, and the final blade is attached to the first and second grooves at an appropriate position of the protrusion. A blade stopper groove for a fluid machine, characterized in that at least one notch portion that can be taken in and out between two grooves is provided.