JPS60131703U

JPS60131703U - Hydraulic supply control device

Info

Publication number: JPS60131703U
Application number: JP1911084U
Authority: JP
Inventors: 上原　一男; 健三田中; 三好　八岑
Original assignee: 株式会社小松製作所
Priority date: 1984-02-15
Filing date: 1984-02-15
Publication date: 1985-09-03

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 drawings]

図面はこの考案の一実施例を示し、第１図は全体的な構
成図、第２図は流量制御弁の拡大図、第３図は流量圧力
制御弁の拡大図である。３は弁本体、３１はポンプポート、４は流量制御弁、４
ａはポペット、４ｂはばね室、４１は小ポペット、４１
はパイロットピストン、４１　は１次側ポート、４゜は
２次側ポート、５は流量圧力制御弁、５ａはポペット、
５１は小ポペット、５１はパイロットピストン、５１は
１次側ポート、５□は２次側ポート、６はチェック弁、
１０はパイロット操作弁。The drawings show an embodiment of this invention, with FIG. 1 being an overall configuration diagram, FIG. 2 being an enlarged view of a flow rate control valve, and FIG. 3 being an enlarged view of a flow rate pressure control valve. 3 is the valve body, 31 is the pump port, 4 is the flow control valve, 4
a is a poppet, 4b is a spring chamber, 41 is a small poppet, 41
is a pilot piston, 41 is a primary side port, 4° is a secondary side port, 5 is a flow rate pressure control valve, 5a is a poppet,
51 is a small poppet, 51 is a pilot piston, 51 is a primary side port, 5□ is a secondary side port, 6 is a check valve,
10 is a pilot operated valve.

Claims

[Scope of utility model registration request]

Inside the valve body 3, the outer peripheral side is located at the primary side port 41 connected to the pump port 31j via the check valve 6, and the tip side is located at the secondary side port 4° connected to the actuator 12 side. At least two flow control valves 4 each including a poppet 4a and a pilot piston 41 that controls opening and closing of the poppet 4a via a small poppet 41, and a primary port 51 connected to the actuator 12 side.
The outer peripheral side is connected to the secondary side port 5, which is also connected to the tank side.
A poppet 5a whose tip side is positioned at °, and the poppet 5
At least two flow rate pressure control valves 5 are provided including a pilot piston 51 that controls the opening and closing of the flow rate control valve 5 via a small poppet 51, and pilot pistons 41, 51 of each of the flow rate control valves 4 and flow rate pressure control valves 5 are provided. A hydraulic pressure supply control device which controls the movement of by pilot pressure supplied from a pilot operation valve 1-0.