JPH0292170U

JPH0292170U -

Info

Publication number: JPH0292170U
Application number: JP54289U
Authority: JP
Priority date: 1989-01-09
Filing date: 1989-01-09
Publication date: 1990-07-23

Description

[Brief explanation of drawings]

第１図は本考案に係るメカニカルシールの一実
施例を示す半断面図、第２図は従来のメカニカル
シールの一例を示す半断面図である。２１…機体のシールボツクス、２２…回転軸、
２３…回転環（メイテイングリング）、３０…外
環、３１…廻り止めピン、３２…頭部、３３…固
定環（シールリング）、３５…コンプレツシヨン
リング、３８…コイルスプリング、３９…スプリ
ング押え。 FIG. 1 is a half-sectional view showing an embodiment of a mechanical seal according to the present invention, and FIG. 2 is a half-sectional view showing an example of a conventional mechanical seal. 21... Airframe seal box, 22... Rotating shaft,
23... Rotating ring (mating ring), 30... Outer ring, 31... Rotating pin, 32... Head, 33... Fixed ring (seal ring), 35... Compression ring, 38... Coil spring, 39... Spring Presser foot.

Claims

[Scope of utility model registration request]

A rotating ring is fixed to the periphery of a rotating shaft inserted into a seal box of the fuselage, while an outer ring that airtightly supports the fixed ring on the inner periphery is fixed to the atmosphere side of the seal box. A rotation stopper pin is protruded from the end face on the atmosphere side of the ring, and the outer circumference of the compression ring that is on the atmosphere side of the fixed ring and engages with the fixed ring in the circumferential direction can be freely moved in the axial direction. A coil spring that is engaged with the rotation ring and presses the stationary ring against the rotating ring is elastically mounted between the compression ring and the spring retainer that is engaged with the rotation stopper pin in a manner that prevents it from coming off. mechanical seal.