JPH02110761U

JPH02110761U -

Info

Publication number: JPH02110761U
Application number: JP1843089U
Authority: JP
Priority date: 1989-02-21
Filing date: 1989-02-21
Publication date: 1990-09-05

Description

[Brief explanation of drawings]

第１図は本考案の一実施例を示す概略構成図、
第２図は他の実施例を示す概略構成図である。１……ハウジング、２……回転軸、３……メカ
ニカルシール、３１……メイテイングリング、３
３……シールリング、３３ａ……反メイテイング
リング側の端面、３５……ばね、３６……摺動面
、６……リテーナ、８……レーザ式位置センサ（
非接触式位置センサ）、１０……サーボモータ（
アクチユエータ）。 FIG. 1 is a schematic configuration diagram showing an embodiment of the present invention;
FIG. 2 is a schematic configuration diagram showing another embodiment. 1...Housing, 2...Rotating shaft, 3...Mechanical seal, 31...Mating ring, 3
3... Seal ring, 33a... End face on the anti-mating ring side, 35... Spring, 36... Sliding surface, 6... Retainer, 8... Laser type position sensor (
Non-contact position sensor), 10... Servo motor (
actuator).

Claims

[Claims for Utility Model Registration] 1. A non-contact position sensor that detects the position of the end surface of the seal ring on the side opposite to the mating ring, which is pressed in the axial direction by a spring and is in pressure contact with the mating ring. A mechanical seal characterized by being provided at a predetermined position on the anti-mating ring side. 2. In the description of claim 1, the spring that presses the seal ring in the axial direction and the non-contact position sensor include:
It is supported by a retainer provided on the housing so as to be freely movable in the axial direction, and this retainer is connected to an actuator that is controlled and driven in the axial direction based on the detected value of the displacement amount of the seal ring by the non-contact position sensor. A mechanical seal featuring: