JPS59185465U

JPS59185465U - Mechanical seal for high speed and high pressure

Info

Publication number: JPS59185465U
Application number: JP8020983U
Authority: JP
Inventors: 小島　一義; 松井　伸悟
Original assignee: イ−グル工業株式会社
Priority date: 1983-05-30
Filing date: 1983-05-30
Publication date: 1984-12-10

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図および第３図は従来のメカニカルシールの半裁断
面図、第３図は第１図に示したメカニカルシールの摺動
面接触状態説明図、第４図は第２図に示したメカニカル
シールの摺動面接触状態説明図、第５図は本考案の二実
施に係るメカニカルシールの要部半裁断面図、第６図は
同摺動面接触　−状態説明図、第７図は段差部分の形成
位置の説明図、第８図は他の例を示すメカニカルシール
の要部半裁断面図である。８・・・回転軸、９・・・リテーナ、１０・・・軸孔段
部、１１・・・側壁、１２・・・固定側密封要素、１３
・・・突起、１４・・・隙間、１５・・・回転側密封要
素、１６・・・摺動面、１゛７・・・段差部分、１８・
・・パツキン。 −１１，’？、−ｔＯ６ −８１２第８図　　′Figures 1 and 3 are half-cut sectional views of conventional mechanical seals, Figure 3 is an explanatory diagram of the sliding surface contact state of the mechanical seal shown in Figure 1, and Figure 4 is the mechanical seal shown in Figure 2. Fig. 5 is a half-cut sectional view of the main part of the mechanical seal according to the second implementation of the present invention, Fig. 6 is an explanatory drawing of the sliding surface contact - state, and Fig. 7 is an illustration of the step portion. FIG. 8, which is an explanatory diagram of the formation position, is a half-cut sectional view of the main part of a mechanical seal showing another example. 8... Rotating shaft, 9... Retainer, 10... Shaft hole step, 11... Side wall, 12... Fixed side sealing element, 13
...Protrusion, 14...Gap, 15...Rotating side sealing element, 16...Sliding surface, 1゛7...Step portion, 18...
...Patsukin. -11,'? , -tO6 -812 Figure 8'

Claims

[Scope of utility model registration request]

It has a rotating side sealing element that is driven by the rotating shaft and a stationary side sealing element that fits into the step of the shaft hole of the retainer through which the rotating shaft is inserted, and the opposing surfaces of both sealing elements form a sealed sliding surface. A mechanical seal for high speed and high pressure, characterized in that an annular gap is provided in a portion closer to the outer periphery between the back surface of the fixed sealing element and the side wall of the stepped portion of the shaft hole of the retainer facing the back surface. sticker.