JPS6382865U

JPS6382865U -

Info

Publication number: JPS6382865U
Application number: JP1986177421U
Authority: JP
Priority date: 1986-11-18
Filing date: 1986-11-18
Publication date: 1988-05-31
Also published as: JPH025159Y2

Description

[Brief explanation of the drawing]

第１図は本考案の軸封装置の分解斜視図、第２
図は軸封装置を圧縮機本体に装着して回転軸を密
封した状態を示した省略断面図である。Ａ：ハウジング、Ｂ：環状支持板、Ｃ：リツプ
シール、Ｄ：中間部材、Ｅ：押圧部材、１：圧縮
機本体、２：中空環体、３：外側環状壁、４：内
側環状壁、５：Ｏリング溝、６：環状凹所、７：
凹部、８：Ｏリング、９：円孔、１０：保持縁、
１１：摺動部、１２：通孔、１３：Ｏリング、１
４：外壁、１５：円筒部、１６：押圧壁、１７：
円孔、１８：高圧室、１９：空間部。 Fig. 1 is an exploded perspective view of the shaft sealing device of the present invention;
The figure is an abbreviated sectional view showing a state in which a shaft sealing device is attached to a compressor main body and the rotating shaft is sealed. A: Housing, B: Annular support plate, C: Lip seal, D: Intermediate member, E: Pressing member, 1: Compressor body, 2: Hollow ring, 3: Outer annular wall, 4: Inner annular wall, 5: O-ring groove, 6: annular recess, 7:
recess, 8: O-ring, 9: circular hole, 10: retaining edge,
11: Sliding part, 12: Through hole, 13: O ring, 1
4: Outer wall, 15: Cylindrical part, 16: Pressing wall, 17:
Circular hole, 18: High pressure chamber, 19: Space part.

Claims

[Claims for Utility Model Registration] (1) In a shaft sealing device that is hermetically attached to a main body having a rotating shaft and sealingly engages with the rotating shaft to form a high pressure chamber inside the main body, the shaft of a hollow ring body; An outer annular wall extends radially inward on one side, an inner annular wall extends radially inward on the other side, and an inner peripheral edge of the inner annular wall extends axially outward. an O-ring groove extending outward in the radial direction to form an outwardly open O-ring groove, and forming an inwardly open annular recess formed by the inner wall of the hollow ring, the outer annular wall, and the inner annular wall; an annular support plate having an outer diameter that can be fitted into an annular recess of the housing and a circular hole through which the rotating shaft can be inserted; and an outer periphery that substantially coincides with the outer periphery of the annular support plate. two lip seals each having a retaining edge and having a cone-shaped sliding portion in which the central portion of the retaining edge bulges toward one side in the axial direction; an intermediate member having an outer wall having a through hole capable of accommodating a sliding portion of the outer annular wall and an outer wall capable of mounting an O-ring between the inner wall of the annular recess and the inner wall of the outer annular wall; It has a cylindrical part with an outer diameter that can come into contact with the inner surface,
A shaft sealing device comprising: a pressing member having a hollow disk-shaped pressing wall extending radially inward from the inner edge of the cylindrical portion to support a holding edge of the lip seal. (2) The shaft sealing device according to claim 1, wherein the lip seal is a lip seal made of tetrafluoroethylene resin filled with carbon fiber and graphite. (3) The shaft sealing device according to claim 1, wherein the outer annular wall of the housing is an outer annular wall in which a part of the inner edge is cut out to form a recess for attaching and detaching the housing.