JPS5840602U

JPS5840602U - Composite control valve with attachment valve added

Info

Publication number: JPS5840602U
Application number: JP13454181U
Authority: JP
Inventors: 松永　千春
Original assignee: 東芝機械株式会社
Priority date: 1981-09-10
Filing date: 1981-09-10
Publication date: 1983-03-17

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 the drawing]

図は本考案の一実施例を示す断面図である。１１・・・第１の複合制御弁、４８・・・第２の複合制
御弁、３２・・・アタッチメント用弁、１３．　３４゜
５０・・・入口室、１４．３５・・・通路、１５・・・
第１のポンプ、５２・・・第２のポンプ、６８・・・パ
イロットポンプ、１６．　１７．　１８．　３６．　５
４．　５５・・・切換弁、１９．　３７．　５６・・・
バイパス通路、２０・・印シック弁、２１，３３ａ、５
７・・・戻り通路、２２・・・タンク、２５・・・弁体
、２７・・・スプール、３０．３６ａ、３６ｂ、５５ａ
、５５ｂ−・・パイロット室、７０．　７１．　７２・
・・パイロット管路、６９・・・リモートコントロール
弁、７３・・・セレクタ弁、８１・・・減圧弁。The figure is a sectional view showing an embodiment of the present invention. DESCRIPTION OF SYMBOLS 11... First compound control valve, 48... Second compound control valve, 32... Attachment valve, 13. 34゜50... Entrance room, 14.35... Passage, 15...
First pump, 52... Second pump, 68... Pilot pump, 16. 17. 18. 36. 5
4. 55... switching valve, 19. 37. 56...
Bypass passage, 20... mark sick valve, 21, 33a, 5
7...Return passage, 22...Tank, 25...Valve body, 27...Spool, 30.36a, 36b, 55a
, 55b--pilot room, 70. 71. 72・
... Pilot pipe line, 69 ... Remote control valve, 73 ... Selector valve, 81 ... Pressure reducing valve.

Claims

[Scope of claim for utility model registration] A merging control valve consisting of the following configuration. An inlet chamber connected to the discharge side of the first pump; and a switching valve configured to selectively supply pressurized oil in the same chamber to the actuator and switch its position to pass return oil from the actuator to the tank. , an attachment valve having a return passage connected to the tank; (B) an inlet chamber connected in parallel to the first pump and a plurality of switching valves connected to the same population chamber when the plurality of switching valves are in a neutral state; a first composite control valve having a bypass passage connected to the tank from a return passage passing through a central portion of the switching valve and downstream thereof; (C) downstream of the bypass passage of the first composite control valve to the return passage; The logic valve includes a hollow valve body, a spool slidably inserted into the valve body, and a pilot chamber configured by one side of the spool and a cylinder. a selector valve that connects or disconnects the chamber to the tank; a pressure reducing valve provided upstream of the selector valve and downstream of the pilot chamber;
゛ A logic valve mechanism having (D) an inlet chamber connected to the discharge side of the second pump; a second sanitation control valve having a bypass passage connected to the tank from a return passage located at ? E) A pilot chamber formed on both sides of the switching valve of the second composite control valve, a pilot pipe connecting one of the pilot chambers to a pilot chamber on the switching valve side of the attachment valve, and the pilot pipe. A remote control valve that simultaneously operates the attachment valve and one switching valve of the second compound control valve by selectively connecting the passage and the other piwatt chamber to the pilot pump.