JPS61160285U

JPS61160285U -

Info

Publication number: JPS61160285U
Application number: JP4428585U
Authority: JP
Priority date: 1985-03-27
Filing date: 1985-03-27
Publication date: 1986-10-04

Description

[Brief explanation of the drawing]

第１図は本考案に基づくベーンポンプの一実施
例を示す縦断面図である。第２図は第１図の―
線について見た断面図である。第３図は従来形
式のロータを示す側面図である。第４図は本考案
に基づくロータを示す側面図である。第５図はロ
ータの各部の半径方向の変位を示すグラフである
。１……ケーシング、２……端壁、２ａ……軸受
ボス、２ｂ……孔、３……吐出室ケーシング、４
……ボルト、５……円筒部材、５ａ……薄肉部、
５ｂ，５ｃ……内向フランジ、５ｄ……厚肉部、
５ｅ，５ｆ……環状突条、６……円板、６ａ……
突軸、６ｂ……孔、７……ボルト、８……円板、
８ａ……軸受ボス、８ｂ……環状突部、８ｃ，８
ｄ……環状溝、９……ボルト、１０……ボス、１
１……玉軸受、１２……リテーナ、１３……ボル
ト、１４……半月キー、１５……プーリ、１６…
…ワツシヤ、１７……ボルト、１８……玉軸受、
１９……テフロンリング、２０……ベーン軸、２
０ａ……小径部、２０ｂ……クランク軸、２１…
…ねじ部、２２……ワツシヤ、２３……ナツト、
２４……ニードル軸受、２５……スリツト、２６
〜２８……ベーン、２９〜３１……ベーンホルダ
、２９ａ〜３１ａ……ベーン取付部、２９ｂ〜３
１ｂ，２９ｃ〜３１ｃ……軸受保持部、２９ｄ〜
３１ｄ，２９ｅ〜３１ｅ……カウンタウエイト、
３２……リベツト、３３……ニードル軸受、３３
ａ……オイルシール、３４……スラストワツシヤ
、３５ａ，３５ｂ……溝、３６，３７……カーボ
ンシユー、３８……板ばね、３９……吸入ポート
、４０……吐出ポート、４１……ランド部、４２
……輪郭線、４３……切除部分、４４……曲線、
４５……破線、４６……ベルト。 FIG. 1 is a longitudinal sectional view showing an embodiment of a vane pump based on the present invention. Figure 2 is the same as Figure 1.
FIG. FIG. 3 is a side view showing a conventional rotor. FIG. 4 is a side view showing a rotor based on the present invention. FIG. 5 is a graph showing the radial displacement of each part of the rotor. DESCRIPTION OF SYMBOLS 1... Casing, 2... End wall, 2a... Bearing boss, 2b... Hole, 3... Discharge chamber casing, 4
... Bolt, 5 ... Cylindrical member, 5a ... Thin wall part,
5b, 5c...inward flange, 5d...thick wall part,
5e, 5f... annular protrusion, 6... disc, 6a...
Projected shaft, 6b... hole, 7... bolt, 8... disc,
8a... Bearing boss, 8b... Annular protrusion, 8c, 8
d...Annular groove, 9...Bolt, 10...Boss, 1
1...ball bearing, 12...retainer, 13...bolt, 14...half-moon key, 15...pulley, 16...
... Washer, 17... Bolt, 18... Ball bearing,
19...Teflon ring, 20...Vane shaft, 2
0a... Small diameter portion, 20b... Crankshaft, 21...
...Threaded part, 22... Washer, 23... Nut,
24... Needle bearing, 25... Slit, 26
~28... Vane, 29-31... Vane holder, 29a-31a... Vane mounting portion, 29b-3
1b, 29c to 31c...Bearing holding part, 29d to
31d, 29e-31e...Counterweight,
32... Rivet, 33... Needle bearing, 33
a... Oil seal, 34... Thrust washer, 35a, 35b... Groove, 36, 37... Carbon shoe, 38... Leaf spring, 39... Suction port, 40... Discharge port, 41... Land portion , 42
... Contour line, 43 ... Excision part, 44 ... Curve,
45...broken line, 46...belt.

Claims

[Claims for Utility Model Registration] A cylindrical casing with a suction port and a discharge port opened on its inner circumferential surface, and a cylindrical casing that is rotatably supported eccentrically within the casing so that its outer circumferential surface faces the inner circumferential surface. a hollow cylindrical rotor; a vane rotatably supported around a rotation center concentric with the casing and slidable on the inner peripheral surface of the casing through a slit cut in a peripheral wall of the rotor; and a seal member provided on the inner facing surface of the slit so as to abut against the vane, wherein the rotor is fixed to a cylindrical member and each axial end of the cylindrical member. the slit is cut toward at least one axial end of the cylindrical member, and the axial end of the cylindrical portion is formed on the outer periphery of the end plate fixed to the end. A vane pump characterized in that an annular protrusion surrounding the vane pump protrudes inward in the axial direction.