JPS63184202U - - Google Patents

Info

Publication number
JPS63184202U
JPS63184202U JP7547787U JP7547787U JPS63184202U JP S63184202 U JPS63184202 U JP S63184202U JP 7547787 U JP7547787 U JP 7547787U JP 7547787 U JP7547787 U JP 7547787U JP S63184202 U JPS63184202 U JP S63184202U
Authority
JP
Japan
Prior art keywords
valve
hydraulic
logic
actuator
throttling
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.)
Pending
Application number
JP7547787U
Other languages
English (en)
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 JP7547787U priority Critical patent/JPS63184202U/ja
Publication of JPS63184202U publication Critical patent/JPS63184202U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Fluid-Pressure Circuits (AREA)

Description

【図面の簡単な説明】
第1図は本考案油圧ロジツクシステムにおける
油圧絞り機構に油圧可変絞り弁を用いた第1実施
例の回路図、第2図は油圧絞り機構に電磁比例切
換弁を用いた第2実施例の回路図である。第3図
は従来の油圧ロジツクシステムの回路図である。 1……ロジツク弁、2……ロジツク弁ポペツト
、3……ロジツク弁パイロツト室、4……開閉切
換弁、5……開弁時油圧可変絞り弁、6……閉弁
時油圧可変絞り弁、7,8……ロジツク弁パイロ
ツト回路、9……アクチユエーター、10……負
荷荷物、11……開弁時電磁比例切換弁、12…
…閉弁時電磁比例切換弁、13……荷重計、14
……圧力センサー、15……制御アンプ。

Claims (1)

    【実用新案登録請求の範囲】
  1. 負荷変動の大きいアクチユエーターの作動油圧
    回路ロジツク弁のパイロツト回路にアクチユエー
    ターの負荷変動に伴い絞り面積が自動的に変化す
    る自動絞り機構を設けたことを特徴とする油圧ロ
    ジツクシステム。
JP7547787U 1987-05-20 1987-05-20 Pending JPS63184202U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7547787U JPS63184202U (ja) 1987-05-20 1987-05-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7547787U JPS63184202U (ja) 1987-05-20 1987-05-20

Publications (1)

Publication Number Publication Date
JPS63184202U true JPS63184202U (ja) 1988-11-28

Family

ID=30921655

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7547787U Pending JPS63184202U (ja) 1987-05-20 1987-05-20

Country Status (1)

Country Link
JP (1) JPS63184202U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008115942A (ja) * 2006-11-02 2008-05-22 Hitachi Constr Mach Co Ltd 作業機械の油圧駆動装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008115942A (ja) * 2006-11-02 2008-05-22 Hitachi Constr Mach Co Ltd 作業機械の油圧駆動装置

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