JPS62180676U

JPS62180676U -

Info

Publication number: JPS62180676U
Application number: JP6909986U
Authority: JP
Priority date: 1986-05-07
Filing date: 1986-05-07
Publication date: 1987-11-16
Also published as: JPH0421018Y2

Description

[Brief explanation of the drawing]

第１図ａ〜ｃは本考案の一実施例としてのアキ
シヤルピストン型流体機械を構成するバルブプレ
ートを示すもので、第１図ａはその平面図、第１
図ｂは第１図ａのＩｂ―Ｉｂ矢視断面図、第１図
ｃは第１図ａのｃ―ｃ矢視断面図であり、第
２〜６図は従来のアキシヤルピストン型流体機械
を示すもので、第２図はその縦断面図、第３図は
そのシリンダブロツクの端面図、第４図はそのバ
ルブプレートの平面図であり、第５図ａ〜ｃはそ
のバルブプレートを示すもので、第５図ａはその
平面図、第５図ｂは第５図ａのｂ―ｂ矢視断
面図、第５図ｃは第５図ａのｃ―ｃ矢視断面
図であり、第６図ａ，ｂはそのバルブプレートの
他の例を示すもので、第６図ａはその平面図、第
６図ｂは第６図ａのｂ―ｂ矢視断面図である
。１……バルブプレート、１ａ……第１リング部
材としての中央リング、１ｂ……第２リング部材
としての内リング、１ｃ……第３リング部材とし
ての外リング、５……バルブプレートにおけるシ
リンダブロツクと接する面、１０……シリンダブ
ロツク、１１……シリンダ、１２……ピストン、
１３……シリンダポート、１４……シリンダブロ
ツク端面、１５……スプライン、２１……高圧ポ
ート、２２……低圧ポート、２３……ノツチ、３
０……ケーシング、３１……吸入口、３２……吐
出口、４０……回転軸、４１……スプライン。 Figures 1a to 1c show a valve plate constituting an axial piston type fluid machine as an embodiment of the present invention, and Figure 1a is a plan view thereof;
Figure b is a cross-sectional view taken along line Ib-Ib in Figure 1a, Figure 1c is a cross-sectional view taken along line CC in Figure 1a, and Figures 2 to 6 show a conventional axial piston type fluid machine. Fig. 2 is a longitudinal sectional view thereof, Fig. 3 is an end view of its cylinder block, Fig. 4 is a plan view of its valve plate, and Figs. 5 a to c show its valve plate. FIG. 5a is a plan view thereof, FIG. 5b is a cross-sectional view taken along line bb in FIG. 5a, and FIG. 5c is a cross-sectional view taken along line c-c in FIG. 5a. 6a and 6b show other examples of the valve plate, FIG. 6a is a plan view thereof, and FIG. 6b is a sectional view taken along the line bb in FIG. 6a. DESCRIPTION OF SYMBOLS 1...Valve plate, 1a...Central ring as a first ring member, 1b...Inner ring as a second ring member, 1c...Outer ring as a third ring member, 5...Cylinder block in the valve plate surface in contact with, 10... cylinder block, 11... cylinder, 12... piston,
13... Cylinder port, 14... Cylinder block end face, 15... Spline, 21... High pressure port, 22... Low pressure port, 23... Notch, 3
0... Casing, 31... Suction port, 32... Discharge port, 40... Rotating shaft, 41... Spline.

Claims

[Scope of utility model registration request]

a cylinder block mounted on a rotating shaft; a cylinder with built-in axial pistons drilled in plural numbers in the cylinder block so as to be parallel to the rotating shaft on the same circumference centered on the rotating shaft; A valve plate having a plurality of cylinder ports that open at the end face of the cylinder block and communicate with the cylinders, a half-moon-shaped port that can be sequentially aligned with the cylinder ports, and a valve plate that supports the valve plate and rotates the rotation shaft. In an axial piston type fluid machine comprising a casing that freely supports the valve plate, the valve plate includes a first ring member made of a good lubricant and having the port, and a height plate that clamps the first ring member from the inside and outside, respectively. An axial piston type fluid machine comprising a second ring member and a third ring member made of a strong material.