JPS633565U

JPS633565U -

Info

Publication number: JPS633565U
Application number: JP9671586U
Authority: JP
Priority date: 1986-06-26
Filing date: 1986-06-26
Publication date: 1988-01-11

Description

[Brief explanation of the drawing]

第１図Ａは本考案の第１実施例を示す部分縦断
面図、第１図Ｂは第１図Ａのシールおよびバツク
アツプリングの部分周方向横断面図、第２図Ａは
第２実施例を示す部分縦断面図、第２図Ｂは第２
図Ａのシールおよびバツクアツプリングの部分周
方向縦断面図、第３図は従来例の部分縦断面図、
第４図は第３図の作用を示す縦断面図、第５図は
他の従来例を示す部分縦断面図である。１１，２１：回転軸、１２，２２：ケーシング
、１３，２３：円周溝、１５，２５：シール、１
７，２７：バツクアツプリング、１５ａ，ｂ，１
７ａ，ｂ―２５ａ，ｂ，２７ａ，ｂ：係止機構。 FIG. 1A is a partial longitudinal cross-sectional view showing a first embodiment of the present invention, FIG. 1B is a partial circumferential cross-sectional view of the seal and back-up spring of FIG. 1A, and FIG. A partial vertical sectional view showing an example, FIG. 2B is a second
Figure A is a partial circumferential vertical cross-sectional view of the seal and back-up spring; Figure 3 is a partial vertical cross-sectional view of the conventional example;
FIG. 4 is a vertical sectional view showing the effect of FIG. 3, and FIG. 5 is a partial vertical sectional view showing another conventional example. 11, 21: Rotating shaft, 12, 22: Casing, 13, 23: Circumferential groove, 15, 25: Seal, 1
7, 27: Backup spring, 15a, b, 1
7a, b-25a, b, 27a, b: Locking mechanism.

Claims

[Scope of utility model registration request]

In a high-pressure rotary seal device in which a back-up spring and a seal are fitted in contact with a circumferential groove provided in a rotating shaft penetrating portion of a casing, a circumferential spacing is provided at both contact portions between the seal and the back-up spring. 1. A high-pressure rotary sealing device, characterized in that it is provided with an engagement mechanism consisting of concave and convex portions that fit into each other.