JPH0219893U

JPH0219893U -

Info

Publication number: JPH0219893U
Application number: JP9821788U
Authority: JP
Priority date: 1988-07-25
Filing date: 1988-07-25
Publication date: 1990-02-09

Description

[Brief explanation of drawings]

第１図乃至第３図はこの考案を示し、第１図は
回転圧縮機の要部断面図、第２図は下軸受部の平
面図、第３図は第２図のＡ―Ａ線断面図、第４図
よおび第５図は従来例を示し、第４図は圧縮機の
断面図、第５図は永久磁石の取付状態を示す要部
平面図である。１…密閉容器、３…回転軸、４…電動要素、５
…回転圧縮要素、６…シリンダ、７…偏心部、８
…ローラ、１０…上軸受部、１１…下軸受部、１
２…スラスト受面、１４…環状の溝、１５…永久
磁石、１６…隙間。 Figures 1 to 3 show this invention, with Figure 1 being a cross-sectional view of the main parts of the rotary compressor, Figure 2 being a plan view of the lower bearing, and Figure 3 being a cross-section taken along line AA in Figure 2. 4 and 5 show a conventional example, FIG. 4 is a sectional view of the compressor, and FIG. 5 is a plan view of the main part showing the state in which the permanent magnets are attached. 1... Airtight container, 3... Rotating shaft, 4... Electric element, 5
... Rotating compression element, 6... Cylinder, 7... Eccentric part, 8
...roller, 10...upper bearing part, 11...lower bearing part, 1
2... Thrust receiving surface, 14... Annular groove, 15... Permanent magnet, 16... Gap.

Claims

[Claims for Utility Model Registration] 1. An electric element having a rotating shaft and a compression element driven by the rotating shaft of the electric element are housed in a closed container, and the rotating shaft is pivotally supported by the compression element. In a compressor that is provided with a bearing portion and has thrust bearing surfaces facing each other in the bearing portion and the rotating shaft, the bearing portion is provided with a groove that opens to the thrust bearing surface, and within this groove is a groove that opens to the thrust bearing surface. A thrust bearing device for a compressor, characterized in that a member for adsorbing iron powder is attached. 2. A thrust bearing device for a compressor according to claim 1, characterized in that a permanent magnet is installed in a groove of the bearing portion. 3. A first device characterized in that the groove of the bearing portion is formed into an annular shape, a permanent magnet is attached to the outer wall surface of the groove, and a gap is formed between the magnet and the inner wall surface.
A thrust bearing device for a compressor according to the claims. 4. An electric element having a rotating shaft and a rotating compression element driven by the rotating shaft of the electric element are housed in a closed container, and the rotating compressing element is connected to a cylinder by an eccentric part of the rotating shaft. Consists of a roller that rotates inside, and an upper bearing part and a lower bearing part that seal the opening of the cylinder, and the lower surface of the eccentric part of the rotating shaft and the upper surface of the lower bearing part form a thrust bearing surface that faces each other. 1. A thrust bearing device for a compressor, characterized in that the bearing portion is provided with an annular groove opening to the thrust bearing surface, and a permanent magnet is installed in the groove. 5. The thrust bearing device for a compressor according to claim 4, wherein a permanent magnet is attached to the outer wall surface of the groove, and a gap is formed between the magnet and the inner wall surface.