JPS61113987U

JPS61113987U -

Info

Publication number: JPS61113987U
Application number: JP19922984U
Authority: JP
Priority date: 1984-12-27
Filing date: 1984-12-27
Publication date: 1986-07-18

Description

[Brief explanation of the drawing]

第１図は本考案に係るスクロール圧縮機の中央
部縦断面図、第２図は第１図の―線断面図、
第３図は固定リング、自転防止リング及び可動ス
クロール部材の分解斜視図、第４図は自転防止リ
ングと固定リングとの嵌合状態を示す正面図、第
５図はテーパ面を示す掛拡大断面図、第６図は本
考案の別例を示す要部のみの正面図、第７図は第
６図に示す別例のテーパ面の拡大断面図である。センタハウジング…１、フロントハウジング…
２、リヤハウジング…４、回転軸…６、偏心軸…
８、可動スクロール部材…９、ガイド溝…９ｄ、
固定リング…１１、ガイド溝…１１ａ、自転防止
リング…１３、固定スクロール部材…１５、スラ
イド面…Ｓ１，Ｓ２，Ｓ３、自転防止リングの傾
斜角…θ、テーパ面Ｓ３の傾斜角…α、クリアラ
ンス…Ｇ。 FIG. 1 is a vertical cross-sectional view of the central part of the scroll compressor according to the present invention, FIG. 2 is a cross-sectional view taken along the line -- in FIG.
Fig. 3 is an exploded perspective view of the fixed ring, anti-rotation ring and movable scroll member, Fig. 4 is a front view showing the fitted state of the anti-rotation ring and fixed ring, and Fig. 5 is an enlarged cross section showing the tapered surface. 6 is a front view of only the main parts showing another example of the present invention, and FIG. 7 is an enlarged sectional view of the tapered surface of the other example shown in FIG. 6. Center housing...1, Front housing...
2, Rear housing…4, Rotating shaft…6, Eccentric shaft…
8, Movable scroll member...9, Guide groove...9d,
Fixed ring...11, guide groove...11a, anti-rotation ring...13, fixed scroll member...15, sliding surface...S1, S2, S3, angle of inclination of anti-rotation ring...θ, angle of inclination of tapered surface S3...α, clearance ...G.

Claims

[Claims for Utility Model Registration] 1. A spiral portion of a fixed scroll member and a spiral portion of a movable scroll member are eccentrically engaged, and a pair of parallel sliding surfaces formed on the side of a fixed ring installed in a housing, A pair of parallel sliding surfaces formed on an annular anti-rotation ring are brought into sliding contact with a predetermined clearance, and
A pair of parallel sliding surfaces provided on the movable scroll member side are brought into sliding contact with a predetermined clearance with another pair of parallel sliding surfaces formed on the rotation prevention ring so as to be substantially perpendicular to the sliding surface. As a result, when the movable scroll member is rotated by the eccentric shaft, the spiral portion of the movable scroll member is caused to revolve and a sealed shape is formed between the two spiral portions while preventing the movable scroll member from rotating. In a scroll compressor configured to reduce the volume while moving the compression chamber toward the center and discharge compressed fluid from the center, the slide surface of the anti-rotation ring and the slide surfaces on the fixed ring side and the movable scroll member side. A tapered surface having an inclination angle that is approximately the same as the maximum angle that the anti-rotation ring is inclined by the clearance is formed on an edge portion of the shorter slide surface of a pair of long and short slide surfaces that are in sliding contact with each other. A rotation prevention mechanism for a movable scroll member in a scroll compressor configured such that the tapered surface can come into planar contact with a corresponding slide surface. 2. An anti-rotation mechanism for a movable scroll member in a scroll compressor according to claim 1, wherein crowning surfaces are formed at both ends of the tapered surface.