JPS6353956U

JPS6353956U -

Info

Publication number: JPS6353956U
Application number: JP14781886U
Authority: JP
Priority date: 1986-09-29
Filing date: 1986-09-29
Publication date: 1988-04-11

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示す要部断面図、
第２図は同実施例における回転環の要部正面図、
第３図は従来例を示す半裁断面図、第４図は同例
における回転環の要部正面図である。１２…固定環、１４…回転環、１２′，１４′
…摺動面、１４′ａ…環状溝の外周側摺動面、１
４′ｂ…環状溝の内周側摺動面、１５…環状溝、
１６…切欠。 FIG. 1 is a cross-sectional view of essential parts showing an embodiment of the present invention;
Figure 2 is a front view of the main parts of the rotating ring in the same embodiment;
FIG. 3 is a half-cut sectional view showing a conventional example, and FIG. 4 is a front view of a main part of a rotating ring in the same example. 12... Fixed ring, 14... Rotating ring, 12', 14'
...Sliding surface, 14'a...Sliding surface on the outer peripheral side of the annular groove, 1
4'b... Inner peripheral side sliding surface of the annular groove, 15... Annular groove,
16...Notch.

Claims

[Scope of utility model registration request]

In a dry sliding type mechanical seal having an annular groove concentric with the sliding surface on one of the sliding surfaces of a stationary ring and a rotating ring that closely slide against each other, one of the sliding surfaces on both sides of the annular groove. A dry sliding mechanical seal characterized in that the annular groove is provided with a notch that opens into one space partitioned by the mechanical seal.