JPS60102496U

JPS60102496U - Rotating shaft sealing device for submersible pumps

Info

Publication number: JPS60102496U
Application number: JP19485483U
Authority: JP
Inventors: 辻本　治男
Original assignee: 株式会社　鶴見製作所
Priority date: 1983-12-19
Filing date: 1983-12-19
Publication date: 1985-07-12

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は本考案装置の要部縦断側面図、第２図は本考案
装置における固定密封環および緩衝バッキングを環溝内
から分離させた状態を示す要部縦断側面図、第３図は本
考案装置におけるリップ内周面をラビリンス状に形成し
た事例を示す要部縦断側面図、第４図の（Ａ）およびＣ
Ｂ）は従来の回転軸密封装置における固定密封環の固定
部構造を例示した要部縦断側面図、第５図は本考案とは
異なるリップの伸延状態を示した要部縦断側面図である
。１・・・固定密封環、１ａ・・・表側端面、１ｂ・・・
裏側端面、１ｃ・・・内周面、１ｄ・・・外周面、２・
・・回転密封環、３・・・環溝、３ｂ・・・溝底面ζ３
ｃ・・・環溝内周　　　′面、４・・・回転軸、６・・
・緩衝バッキング、７・・・合成ゴム製リップ、７ｃ・
・・リップ内周面。Fig. 1 is a longitudinal sectional side view of the main part of the device of the present invention, Fig. 2 is a longitudinal sectional side view of the main part of the device of the invention showing a state in which the fixed sealing ring and the buffer backing are separated from the inside of the ring groove. FIG. 4 (A) and C are longitudinal sectional side views of main parts showing an example in which the inner peripheral surface of the lip in the devised device is formed in a labyrinth shape.
B) is a longitudinal sectional side view of a main part illustrating the structure of a fixing part of a fixed sealing ring in a conventional rotary shaft sealing device, and FIG. 1... Fixed sealing ring, 1a... Front end surface, 1b...
Back end surface, 1c...inner peripheral surface, 1d...outer peripheral surface, 2.
...Rotating sealing ring, 3...Ring groove, 3b...Groove bottom surface ζ3
c...Inner circumference of the ring groove 'surface, 4...Rotating shaft, 6...
・Buffer backing, 7...Synthetic rubber lip, 7c・
...Rip inner circumferential surface.

Claims

[Scope of utility model registration request]

A fixed sealing ring 1 having a front end surface 1a as a sliding surface facing the rotating sealing ring 2 and a back end surface 1b as a non-sliding surface is attached to the rotating shaft 4.
It is housed in an annular groove 3 recessed in the inner wall of the seal box so as to fit loosely with the outer periphery of the fixed sealing ring 1, and the non-sliding surface is brought into contact with the groove bottom surface 3b. Inner peripheral surface 3
A buffer backing 6 is interposed in the gap between the fixed sealing ring 1 and the synthetic Baum ring 1. A rotating shaft sealing device for a submersible pump, in which an inner circumferential edge 7c of a pump 7 comes into sliding contact with a rotating shaft 4 to form an external liquid flow prevention surface.