JPH01160192U

JPH01160192U -

Info

Publication number: JPH01160192U
Application number: JP5703088U
Authority: JP
Priority date: 1988-04-26
Filing date: 1988-04-26
Publication date: 1989-11-07

Description

[Brief explanation of the drawing]

第１，２図は本考案の第１実施例を示す図であ
り、第１図はその圧縮機の正面断面図、第２図は
その軸封構造を示す第１図の部分拡大断面図、第
３図は本考案の第２実施例を示す第２図と同様な
断面図、第４図は従来例を示すその軸封構造の断
面図である。２２……ハウジング、２５……ロータ、２７…
…軸穴、２８，３１……ロータ軸、４１……固定
環、４３……回転環、４３ａ……シール面、４４
……シールリング、４６，５６……ばね受部材、
４７，５７……円錐コイルばね（スプリング）、
４８，５８……弾性端座部材（弾性体）、４９，
５９……リテーナ。 1 and 2 are views showing a first embodiment of the present invention, FIG. 1 is a front sectional view of the compressor, FIG. 2 is a partially enlarged sectional view of FIG. 1 showing the shaft sealing structure, FIG. 3 is a sectional view similar to FIG. 2 showing a second embodiment of the present invention, and FIG. 4 is a sectional view of the shaft sealing structure of a conventional example. 22...Housing, 25...Rotor, 27...
... Shaft hole, 28, 31 ... Rotor shaft, 41 ... Fixed ring, 43 ... Rotating ring, 43a ... Seal surface, 44
... Seal ring, 46, 56 ... Spring receiving member,
47, 57...Conical coil spring (spring),
48, 58...Elastic end seat member (elastic body), 49,
59...retainer.

Claims

[Scope of utility model registration request]

A housing in which a shaft hole is formed, a rotor shaft that protrudes from both ends of the rotor housed in the housing and is rotatably supported in the shaft hole of the housing, and a fixing member fitted into the shaft hole coaxially with the rotor shaft. a ring, a rotating ring externally mounted on the rotor shaft via a seal ring so as to face the fixed ring in the axial direction, an annular retainer having a radial flange portion that abuts the seal ring, and a ring that engages the rotor shaft and the rotating ring. a spring bearing member that rotates the rotating ring integrally with the rotor shaft; and a spring that is interposed between the retainer and the spring bearing member and biases the rotating ring toward the fixed ring. In the shaft sealing structure of the compressor, which seals the shaft hole of the housing by sliding and rotating the housing closely, a rubber-like elastic body is provided at least on one side between the spring and the retainer and between the spring and the spring bearing member. A shaft seal structure for a compressor characterized by an interposed shaft seal.