JPS63201263U

JPS63201263U -

Info

Publication number: JPS63201263U
Application number: JP9199087U
Authority: JP
Priority date: 1987-06-17
Filing date: 1987-06-17
Publication date: 1988-12-26
Also published as: JPH0448379Y2

Description

[Brief explanation of the drawing]

第１図は本考案に係るメカニカルシールの一実
施例を示す概略的要部断面図、第２図は同じくケ
ーシングの要部斜視図、第３図は従来のメカニカ
ルシールの概略的要部断面図、第４図は同じく従
来のケーシングの要部斜視図である。１……ハウジング、２……回転軸、４……メイ
テイングリング（固定環）、６……シールリング
（回転環）、６ａ……外周面、６１……凹溝、７
……ケーシング、７１……アーム、７１ａ……先
端部、８……コイルスプリング、１０……突起。 Fig. 1 is a schematic cross-sectional view of the main parts of an embodiment of the mechanical seal according to the present invention, Fig. 2 is a perspective view of the main parts of the casing, and Fig. 3 is a schematic cross-sectional view of the main parts of a conventional mechanical seal. , FIG. 4 is a perspective view of the main part of the conventional casing. DESCRIPTION OF SYMBOLS 1... Housing, 2... Rotating shaft, 4... Mating ring (fixed ring), 6... Seal ring (rotating ring), 6a... Outer peripheral surface, 61... Concave groove, 7
...Casing, 71...Arm, 71a...Tip, 8...Coil spring, 10...Protrusion.

Claims

[Scope of utility model registration request]

A mating ring, which is a fixed ring fixed to the inner periphery of the housing side of the fuselage, is slidably opposed to a seal ring, which is a rotating ring fixed to the rotating shaft side via a casing, and this seal ring is An arm is elastically pressed toward the mating ring by the urging force of a coil spring housed in the casing, and a concave groove is formed on the outer peripheral surface of the seal ring, and the arm protrudes from the concave groove into the casing. In the mechanical seal in which rotation is prevented by engaging the tip of the arm, the casing is integrally formed with an elastic strength member made of synthetic resin, and the tip of the arm is provided with a non-return claw-like protrusion. . A mechanical seal characterized in that the seal ring is locked by the protrusion so as to suppress movement in the axial direction.