JPS6052478U

JPS6052478U - digital control pressure control valve

Info

Publication number: JPS6052478U
Application number: JP14580583U
Authority: JP
Inventors: 信宏岩淵; 直樹市川
Original assignee: 豊興工業株式会社
Priority date: 1983-09-20
Filing date: 1983-09-20
Publication date: 1985-04-12
Also published as: JPH023016Y2

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 drawings]

第１図は本考案の一実施例を示すデジタル制御す゛リー
フ弁の断面図、第２図は同実施例の平面図、第３図は同
実施例の部分拡大断面図、第４図は第１図におけるＩＶ
−ＩＶ断面図、第５図は同実施例の右側面図、第６図は
同実施例のＩＪ　ＩＪ−フ弁を示すＪＩＳ記号であり、
第７図は本考案の他の実施例を示す正面図（一部断面）
である。２・・・弁本体、４・・・電気パルスモータ、２８・・
・圧力制御ピストン、３８・・・ポペット、５４・・・
圧縮コイルばね（保合手段）、５８・・・パイロットス
プール、９８・・・カム部材、１０２・・・ねじりばね
（原点復帰ばね）。Fig. 1 is a sectional view of a digitally controlled leaf valve showing an embodiment of the present invention, Fig. 2 is a plan view of the embodiment, Fig. 3 is a partially enlarged sectional view of the embodiment, and Fig. IV in Figure 1
-IV sectional view, FIG. 5 is a right side view of the same embodiment, and FIG. 6 is the JIS symbol indicating the IJ IJ-F valve of the same embodiment,
Figure 7 is a front view (partial cross section) showing another embodiment of the present invention.
It is. 2...Valve body, 4...Electric pulse motor, 28...
・Pressure control piston, 38...Poppet, 54...
Compression coil spring (holding means), 58... pilot spool, 98... cam member, 102... torsion spring (origin return spring).

Claims

[Scope of Claim for Utility Model Registration] A pressure control valve in which the set pressure of a fluid can be adjusted by controlling the pressing force of a poppet that is provided in the flow path of the valve body and is pressed by a set pressure adjustment spring, A pressure control device that is slidably fitted to the valve body and pressable with a set pressure adjustment spring, and by changing its axial position, the pressing force of the set pressure adjustment spring can be adjusted and the set pressure of the fluid can be controlled. The piston is slidably fitted into a fitting hole formed in the axial direction at one end of the pressure control piston, and controls the pilot fluid flowing through the pilot flow path in accordance with the relative position with respect to the valve body. A pilot spool that regulates the position of the control piston, an electric pulse motor that rotates according to the number of electric pulse signals, and a cam that is connected to the pulse motor shaft and moves the pilot spool a predetermined amount according to its own rotation angle. and a home return spring that urges the cam member toward the home position, and the pilot flow path is connected to the valve body, the pressure control piston,
The pilot spool is composed of a connection between each of the pilot spools that separates from each other and a flow path formed in one of these members, and the pilot fluid supply side end of the pilot spool is configured to communicate with the upstream flow path of the poppet, and the electric pulse A digitally controlled pressure control valve characterized by being able to control the set pressure of fluid corresponding to the number of signals.