JPS63130676U

JPS63130676U -

Info

Publication number: JPS63130676U
Application number: JP2258087U
Authority: JP
Priority date: 1987-02-18
Filing date: 1987-02-18
Publication date: 1988-08-26

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示す斜板型アキシ
ヤルピストン及びモータの概要図、第２図は第１
図におけるピストンとスリツパが係着する球面軸
受部の断面図、第３図は第２図における球面軸受
摺動部の内面を見た―矢視図、第４図は球面
軸受摺動部の外面を見た―矢視図、第５図は
第２図に対応する第２の実施例、第６図は第２図
に対応する第３の実施例である。第７図は第２図
に対応する従来の球面軸受を示す図である。１……シリンダー、２……シリンダーブロツク
、３……スプライン、４……回転軸、５……ピス
トン、５ｂ……球面軸外面の環状溝、６……スリ
ツパ、６ｅ……球面軸内面の環状溝、５ａ，５ｃ
，６ｆ……油路、７……斜板、８……シリンダー
ポート、９……弁板、１０……低圧ポート、１１
……高圧ポート、１２……ケーシング、１３……
吸入口、１４……吐出口。 Fig. 1 is a schematic diagram of a swash plate type axial piston and motor showing one embodiment of the present invention, and Fig.
Figure 3 is a cross-sectional view of the spherical bearing where the piston and slipper engage, Figure 3 is a view of the inner surface of the sliding part of the spherical bearing in Figure 2, as viewed from the arrow, Figure 4 is the outer surface of the sliding part of the spherical bearing. 5 is a second embodiment corresponding to FIG. 2, and FIG. 6 is a third embodiment corresponding to FIG. 2. FIG. 7 is a diagram showing a conventional spherical bearing corresponding to FIG. 2. 1... Cylinder, 2... Cylinder block, 3... Spline, 4... Rotating shaft, 5... Piston, 5b... Annular groove on the outer surface of the spherical shaft, 6... Slipper, 6e... Annular shape on the inner surface of the spherical shaft Groove, 5a, 5c
, 6f... Oil passage, 7... Swash plate, 8... Cylinder port, 9... Valve plate, 10... Low pressure port, 11
...High pressure port, 12...Casing, 13...
Suction port, 14...discharge port.

Claims

[Scope of utility model registration request]

In a spherical bearing for a fluid machine that engages a piston that reciprocates in a cylinder and a slipper that slides on a swash plate, an inner surface on the spherical bearing side provided on one of the piston or the slipper and a spherical shaft provided on the other. A fluid machine characterized in that an annular groove centered on each axis is cut on the outer surface of the side, and pressure oil in a conduction path penetrated by the cylinder is conducted to the annular groove. spherical bearing.