JPS6393489U

JPS6393489U -

Info

Publication number: JPS6393489U
Application number: JP18913886U
Authority: JP
Priority date: 1986-12-10
Filing date: 1986-12-10
Publication date: 1988-06-16

Description

[Brief explanation of the drawing]

第１図はこの考案に係るロータリコンプレツサ
の一実施例を示すロータリ型圧縮機構の断面図、
第２図は上記ロータリコンプレツサの全体を示す
縦断面図、第３図は従来のロータリコンプレツサ
に組み込まれる圧縮機構を示す断面図である。１０……密閉ケーシング、１１……電動機、１
２……圧縮機構、１３……シリンダブロツク、１
４……シリンダ室、１５……メインベアリング、
１６……サブベアリング、１６ａ……サブベアリ
ングの摺動面、１８……回転シヤフト、１９……
偏心部、２０……ローラ、２１……スラスト受け
面。 FIG. 1 is a sectional view of a rotary type compression mechanism showing an embodiment of the rotary compressor according to this invention;
FIG. 2 is a longitudinal sectional view showing the entire rotary compressor, and FIG. 3 is a sectional view showing a compression mechanism incorporated in a conventional rotary compressor. 10... Sealed casing, 11... Electric motor, 1
2... Compression mechanism, 13... Cylinder block, 1
4... Cylinder chamber, 15... Main bearing,
16... Sub-bearing, 16a... Sub-bearing sliding surface, 18... Rotating shaft, 19...
Eccentric part, 20... roller, 21... thrust receiving surface.

Claims

[Claims for Utility Model Registration] 1. A rotary compressor in which a thrust receiving surface is formed on one end surface of an eccentric portion of a rotating shaft, and the thrust load is supported by the sliding surface of a sub-bearing that makes surface contact with this thrust receiving surface, one end of the eccentric portion of the rotating shaft is bulged outward in the radial direction;
A rotary compressor characterized in that the contact area of the thrust receiving surface of the rotary shaft that makes surface contact with the sliding surface of the sub-bearing is increased. 2. A utility model in which one end of the eccentric part of the rotating shaft partially bulges outward in the radial direction on the opposite side to the eccentric direction of the shaft, and the radius of this bulging part is set larger than the radius of the corresponding part of the eccentric part of the rotating shaft. A rotary compressor according to claim 1. 3. The rotary compressor according to claim 1, wherein a stepped notch is formed on the inner peripheral side of the roller corresponding to the increased area of the thrust receiving portion at one end of the eccentric portion of the rotating shaft.