JPS5882504U - Hydraulic circuit control device - Google Patents

Hydraulic circuit control device

Info

Publication number
JPS5882504U
JPS5882504U JP17663281U JP17663281U JPS5882504U JP S5882504 U JPS5882504 U JP S5882504U JP 17663281 U JP17663281 U JP 17663281U JP 17663281 U JP17663281 U JP 17663281U JP S5882504 U JPS5882504 U JP S5882504U
Authority
JP
Japan
Prior art keywords
hydraulic
valve
hydraulic closed
control device
merging
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
JP17663281U
Other languages
Japanese (ja)
Inventor
寛 大島
Original Assignee
株式会社小松製作所
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 by 株式会社小松製作所 filed Critical 株式会社小松製作所
Priority to JP17663281U priority Critical patent/JPS5882504U/en
Publication of JPS5882504U publication Critical patent/JPS5882504U/en
Pending legal-status Critical Current

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  • Fluid-Pressure Circuits (AREA)

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

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来の油圧回路の制御装置の構成説明図、第２
図は本考案−実施例の構成説明図、第３図はそのタイム
チャート図である。 １．１′は可変容量ポンプ、４．　４’はサーボ弁、５
．　５’はシャフトオフ弁、２０．２０’は油圧閉回路
、２１は合流弁、２８は制御弁。Figure 1 is an explanatory diagram of the configuration of a conventional hydraulic circuit control device;
The figure is an explanatory diagram of the configuration of the present invention-embodiment, and FIG. 3 is a time chart thereof. 1.1' is a variable displacement pump; 4. 4' is a servo valve, 5
．． 5' is a shaft off valve, 20, 20' is a hydraulic closed circuit, 21 is a merging valve, and 28 is a control valve.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 複数の油圧閉回路２０．　２０’にアクチュエータＡ、
　Ａ’の油圧の供給の断続を行うシャットオフ弁５．５
′を設け、油圧閉回路２０．　２０’間にこれら油圧閉
回路２０．　２０’の合流制御を行う合流弁２１を設け
、油圧閉回路２０．２０’の可変容量ポンプ１．１′に
、これら可変容量ポンプ１．１′の吐出油の流量および
吐出方向を制御するサーボ弁４，４′を設け、操作レバ
ー指令を入力とする制御部２８の出力側を前記シャット
オフ弁５，５’、合流弁２１およびサーボ弁４．４′の
指令入力側に接続したことを特徴とする油圧回路の制御
装置。Multiple hydraulic closed circuits 20. 20' is actuator A,
Shutoff valve 5.5 that cuts off and on the supply of hydraulic pressure of A'
', and a hydraulic closed circuit 20. 20' between these hydraulic closed circuits 20. A merging valve 21 is provided to control the merging of oil in the hydraulic closed circuit 20.20', and a servo is installed in the variable displacement pump 1.1' of the hydraulic closed circuit 20.20' to control the flow rate and direction of oil discharged from these variable displacement pumps 1.1'. The valves 4 and 4' are provided, and the output side of the control unit 28 which receives the operating lever command as input is connected to the command input side of the shutoff valves 5 and 5', the merging valve 21 and the servo valve 4.4'. Features: Hydraulic circuit control device.
JP17663281U 1981-11-30 1981-11-30 Hydraulic circuit control device Pending JPS5882504U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17663281U JPS5882504U (en) 1981-11-30 1981-11-30 Hydraulic circuit control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17663281U JPS5882504U (en) 1981-11-30 1981-11-30 Hydraulic circuit control device

Publications (1)

Publication Number Publication Date
JPS5882504U true JPS5882504U (en) 1983-06-04

Family

ID=29969774

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17663281U Pending JPS5882504U (en) 1981-11-30 1981-11-30 Hydraulic circuit control device

Country Status (1)

Country Link
JP (1) JPS5882504U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015076130A1 (en) * 2013-11-21 2015-05-28 日立建機株式会社 Work machine driving device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015076130A1 (en) * 2013-11-21 2015-05-28 日立建機株式会社 Work machine driving device
JP2015102107A (en) * 2013-11-21 2015-06-04 日立建機株式会社 Work machine driving device
CN105531485A (en) * 2013-11-21 2016-04-27 日立建机株式会社 Work machine driving device
US9903094B2 (en) 2013-11-21 2018-02-27 Hitachi Construction Machinery Co., Ltd. Work machine driving device

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