JPS59185473U

JPS59185473U - servo valve

Info

Publication number: JPS59185473U
Application number: JP7913983U
Authority: JP
Inventors: 義一阿部; 小泉　親秀; 高原　良博
Original assignee: 株式会社島津製作所
Priority date: 1983-05-25
Filing date: 1983-05-25
Publication date: 1984-12-10

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来の簡易形サーボバルブの制御入力電流ｉ−
油油圧流量性特性示すグラフ、第２図は本考案実施例の
構成図、第３図はその制御入力電流ｉ−油油圧流量性特
性示すグラフである。１・・・弁機構部、２・・・ＣＰＵ、　３．−・・コン
トローラ、４・・・バイアスｔ　流発生部、１２ａ、　
　１２ｂ・・・ツレ　　　−ノイド、１３・・・スプー
ル、４１・・・直流電源、４２・・・可変抵抗、４３・
・・切換スイッチ。Figure 1 shows the control input current i- of a conventional simple servo valve.
FIG. 2 is a diagram showing the configuration of the embodiment of the present invention, and FIG. 3 is a graph showing the control input current i--oil pressure flow characteristics. 1... Valve mechanism section, 2... CPU, 3. -... Controller, 4... Bias t flow generator, 12a,
12b...Tre-noid, 13...Spool, 41...DC power supply, 42...Variable resistor, 43...
...Choice switch.

Claims

[Scope of utility model registration request]

A valve mechanism section that controls the hydraulic flow rate based on the displacement of the spool, which is regulated by the magnitude of the control input current supplied to the solenoid coil, and a bias current generation section that generates a current corresponding to the dead zone of the valve mechanism section. and a control section that superimposes an output current from the bias current generation section on the control input current.