JPS6097379U

JPS6097379U - Radial piston type hydraulic rotating machine

Info

Publication number: JPS6097379U
Application number: JP18889383U
Authority: JP
Inventors: 均佐藤; 一正湯浅
Original assignee: 日立建機株式会社
Priority date: 1983-12-07
Filing date: 1983-12-07
Publication date: 1985-07-03

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図ないし第４図は従来技術を示すもので、第１図は
普通孔に絞り部を設けていない液圧回転機の部分断面図
、第２図は第１図のシューの底面図、第３図は該シュー
の浮き上った状態を示す説明図、第４図は導通孔に絞り
部を設けた液圧回転機の部分断面図、第５図は本考案の
実施例に係る液圧回転機の部分断面図、第６図は第５図
のシュ　−−の底面図、第７図イは第１図に示すシュー
が浮き上った時の油圧分布状態図、第７図口は本実施例
に係るシューが浮き上った時の油圧分布状態図である。１・・・カムリング、２・・・シリンダブロック、３・
・・シリンダ、４・・・ピストン、１１・・・シュー、
１２・・・静圧ポケット、１３・・・静圧パッド、１５
・・・凹溝。第２図５８□イ第４図1 to 4 show the prior art, in which FIG. 1 is a partial sectional view of a hydraulic rotary machine in which a normal hole is not provided with a constriction part, FIG. 2 is a bottom view of the shoe shown in FIG. 1, FIG. 3 is an explanatory diagram showing the shoe in a floating state, FIG. 4 is a partial sectional view of a hydraulic rotating machine in which a constriction is provided in the through hole, and FIG. Fig. 6 is a bottom view of the shoe shown in Fig. 5; Fig. 7 A is a diagram of the hydraulic pressure distribution when the shoe shown in Fig. 1 is lifted; Fig. 7 2 is a diagram of the oil pressure distribution state when the shoe according to the present embodiment is lifted up. 1...Cam ring, 2...Cylinder block, 3.
...Cylinder, 4...Piston, 11...Shoe,
12... Static pressure pocket, 13... Static pressure pad, 15
...concave groove. Figure 2 58□a Figure 4

Claims

[Scope of utility model registration request]

A cylinder block provided in a cam ring and rotating eccentrically with respect to the cam ring, a plurality of cylinders bored radially in the cylinder block, a screw slidably provided in each cylinder, and one end. is swingably connected to each piston, and has a shoe whose other end is in sliding contact with the cam ring. A radial piston type hydraulic rotating machine characterized by having a concave groove that goes around the sliding surface.