JPS644969U

JPS644969U -

Info

Publication number: JPS644969U
Application number: JP9961887U
Authority: JP
Priority date: 1987-06-29
Filing date: 1987-06-29
Publication date: 1989-01-12
Also published as: JPH0341179Y2

Description

[Brief explanation of the drawing]

第１図は本考案の電磁油圧弁の実施例を示す縦
断面図である。第２図及び第３図はそれぞれ第１
図における電磁油圧弁の副スプール１１ｂと、リ
ング状シリンダ部１０ｂとを、分解して示す外観
斜視図である。第４図は本考案の実施例及び従来
の電磁油圧弁による電流値ＩＡに対する圧力流体
の制御圧力Ｐとの圧力制御特性ＰＡを示す図であ
る。第５図は従来の電磁油圧弁の構成を示す縦断
面図である。１……流体圧力制御部、１０……ハウジング、
１０ｂ……リング状シリンダ部、１１……スプー
ル、１２……付勢部材、１１ａ……主スプール、
１１ｂ……副スプール、１００ａ……一端開口、
１００ｂ……他端開口、１３……蓋部、２……ソ
レノイド部。 FIG. 1 is a longitudinal sectional view showing an embodiment of the electrohydraulic valve of the present invention. Figures 2 and 3 are the first
It is an external perspective view which disassembles and shows the sub spool 11b of the electrohydraulic valve shown in the figure, and the ring-shaped cylinder part 10b. FIG. 4 is a diagram showing the pressure control characteristic PA of the control pressure P of the pressure fluid with respect to the current value IA of the embodiment of the present invention and the conventional electromagnetic hydraulic valve. FIG. 5 is a longitudinal sectional view showing the configuration of a conventional electrohydraulic valve. 1... Fluid pressure control section, 10... Housing,
10b...Ring-shaped cylinder part, 11...Spool, 12...Biasing member, 11a...Main spool,
11b... Sub-spool, 100a... One end open,
100b...Other end opening, 13...Lid part, 2...Solenoid part.

Claims

[Claims for Utility Model Registration] (1) A housing having a shaft hole that is open at one end, a pressure fluid introduction hole and a pressure fluid outlet hole that communicate through the shaft hole, and a control fluid introduction hole that communicates with the shaft hole; , a control valve that is slidably held in the shaft hole and controls communication between the pressure fluid introduction hole and the pressure fluid outlet hole, and a control pressure chamber that communicates with the control fluid introduction hole in the shaft hole. a fluid pressure control unit including a spool having a piston portion; and a biasing member held within the housing and biasing the spool in one axial direction; An electromagnetic hydraulic valve comprising a solenoid section that attracts and biases the spool against the biasing force of the biasing member, wherein the housing includes a housing body having the shaft hole, and a housing that is fixed to the shaft hole of the housing body and is fixed to the shaft hole of the housing body. An electromagnetic hydraulic valve comprising a ring-shaped cylinder portion in sliding contact with the piston portion of the spool. (2) The spool is comprised of a main spool having the control valve, and a sub-spool that is independent of the main spool and is brought into contact with the main spool by the biasing member, and has the piston portion. 1
Electrohydraulic valve as described in section. (3) The electromagnetic hydraulic pressure according to claim 1, wherein the housing body has an opening at the other end into which the cylinder section is inserted into the other end of the opening at one end, and a lid section that closes the opening at the other end. valve.