JPS62196260U - - Google Patents

Info

Publication number
JPS62196260U
JPS62196260U JP8351086U JP8351086U JPS62196260U JP S62196260 U JPS62196260 U JP S62196260U JP 8351086 U JP8351086 U JP 8351086U JP 8351086 U JP8351086 U JP 8351086U JP S62196260 U JPS62196260 U JP S62196260U
Authority
JP
Japan
Prior art keywords
switching valve
pilot
valve
hydraulic
hydraulic circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP8351086U
Other languages
English (en)
Other versions
JPH0442368Y2 (ja
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP8351086U priority Critical patent/JPH0442368Y2/ja
Publication of JPS62196260U publication Critical patent/JPS62196260U/ja
Application granted granted Critical
Publication of JPH0442368Y2 publication Critical patent/JPH0442368Y2/ja
Expired legal-status Critical Current

Links

Description

【図面の簡単な説明】
第1図は本考案の油圧回路図、第2図は従来技
術の油圧回路図である。 1,2……リモートコントロール弁、3……旋
回モータ、4……アームシリンダ、5……旋回切
換弁、6,6′……アーム切換弁、7……油圧ポ
ンプ、11……シヤトル弁、25,26,33…
…リリーフ弁、27……絞り部付切換弁、28…
…パイロツト切換弁。

Claims (1)

    【実用新案登録請求の範囲】
  1. リモートコントロール弁操作にて導出されるパ
    イロツト圧により切換弁を切換えて、油圧ポンプ
    の吐出圧油を各種油圧アクチユエータに供給する
    油圧シヨベルの油圧回路において、油圧ポンプの
    吐出油路に絞り部付切換弁を設け、該絞り部付切
    換弁よりアーム切換弁および旋回切換弁を並列に
    配置し、一方、旋回切換弁の左右両側パイロツト
    圧受圧部を連通する油路中間部に設けられたシヤ
    トル弁と上記絞り部付切換弁パイロツト圧受圧部
    とのパイロツト油路中間部にパイロツト切換弁を
    設け、該パイロツト切換弁により絞り部付切換弁
    を切換制御可能に接続するとともに、上記パイロ
    ツト切換弁のパイロツト圧受圧部と旋回モータ用
    リリーフ弁の出口側とを連通せしめる如く構成し
    ていることを特長とする油圧シヨベルの油圧回路
JP8351086U 1986-05-30 1986-05-30 Expired JPH0442368Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8351086U JPH0442368Y2 (ja) 1986-05-30 1986-05-30

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8351086U JPH0442368Y2 (ja) 1986-05-30 1986-05-30

Publications (2)

Publication Number Publication Date
JPS62196260U true JPS62196260U (ja) 1987-12-14
JPH0442368Y2 JPH0442368Y2 (ja) 1992-10-06

Family

ID=30937167

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8351086U Expired JPH0442368Y2 (ja) 1986-05-30 1986-05-30

Country Status (1)

Country Link
JP (1) JPH0442368Y2 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000071899A1 (fr) * 1999-05-21 2000-11-30 Shin Caterpillar Mitsubishi Ltd. Dispositif et procede de commande d'engin de travaux publiques
JP2008261373A (ja) * 2007-04-10 2008-10-30 Kobelco Contstruction Machinery Ltd 作業機械の油圧制御装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000071899A1 (fr) * 1999-05-21 2000-11-30 Shin Caterpillar Mitsubishi Ltd. Dispositif et procede de commande d'engin de travaux publiques
JP2008261373A (ja) * 2007-04-10 2008-10-30 Kobelco Contstruction Machinery Ltd 作業機械の油圧制御装置

Also Published As

Publication number Publication date
JPH0442368Y2 (ja) 1992-10-06

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