JPH01128018U

JPH01128018U -

Info

Publication number: JPH01128018U
Application number: JP1988023521U
Authority: JP
Priority date: 1988-02-24
Filing date: 1988-02-24
Publication date: 1989-08-31

Description

[Brief explanation of the drawing]

第１図は本考案による水中軸受装置の実施例を
示した横断面図、第２図は第１図の―線矢視
の展開図、第３図はセラミツクパツドと押えリン
グとの関係を拡大して示した斜視図、第４図はセ
ラミツクパツドが熱膨脹した時の状態を示した断
面図、第５図は従来の水中軸受装置を示した横断
面図である。４……軸受箱、５……回転軸、７……セラミツ
クパツク、７ａ……テーパ部、８……間隙、９…
…円筒バネ、１２……押え部材、１３……本体部
、１４……突出部、１４ａ……傾斜面、１４ｂ…
…薄肉部。 Fig. 1 is a cross-sectional view showing an embodiment of the underwater bearing device according to the present invention, Fig. 2 is a developed view of Fig. 1 as viewed from the - line arrow, and Fig. 3 is an enlarged view of the relationship between the ceramic pad and the retaining ring. FIG. 4 is a cross-sectional view showing the state when the ceramic pad is thermally expanded, and FIG. 5 is a cross-sectional view showing a conventional underwater bearing device. 4...Bearing box, 5...Rotating shaft, 7...Ceramic pack, 7a...Tapered portion, 8...Gap, 9...
... Cylindrical spring, 12 ... Pressing member, 13 ... Main body part, 14 ... Projection part, 14a ... Inclined surface, 14b ...
...thin section.

Claims

[Scope of utility model registration request]

They are arranged on the inner circumferential surface of the bearing box with a predetermined gap from each other in the circumferential direction so as to bear the rotating shaft, and at both ends in the axial direction, there are grooves that face the inner circumferential surface of the bearing box as they move toward the tips. a plurality of ceramic pads each having an inclined taper portion; a cylindrical spring that is fixed to the bearing box at the predetermined gap and allows slight displacement of the ceramic pad in the circumferential direction by its own elastic deformation; It is composed of a main body part and a protruding part protruding from one end of the main body part, the other end of the main body part is fixed to the axial end face of the bearing box, and the protruding part abuts on the tapered part of the ceramic pad to close the ceramic pad. a presser member that presses the bearing box against the inner circumferential surface of the bearing box;
The protruding portion of the holding member includes an inclined surface that abuts the tapered portion of the ceramic pad, and a thin wall portion that is formed near the boundary between the protruding portion and the main body portion and easily allows elastic deformation of the protruding portion itself. An underwater bearing device characterized by comprising: