JPS5754635A - Hydraulic circuit for civil engineering and construction equipment - Google Patents

Hydraulic circuit for civil engineering and construction equipment

Info

Publication number
JPS5754635A
JPS5754635A JP55127126A JP12712680A JPS5754635A JP S5754635 A JPS5754635 A JP S5754635A JP 55127126 A JP55127126 A JP 55127126A JP 12712680 A JP12712680 A JP 12712680A JP S5754635 A JPS5754635 A JP S5754635A
Authority
JP
Japan
Prior art keywords
hydraulic
hydraulic circuit
civil engineering
construction equipment
actuators
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
JP55127126A
Other languages
Japanese (ja)
Other versions
JPS6337216B2 (en
Inventor
Hiroshi Watanabe
Eiki Izumi
Yukio Aoyanagi
Kazuo Honma
Yoshio Nakajima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Construction Machinery Co Ltd
Original Assignee
Hitachi Construction Machinery Co Ltd
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 Hitachi Construction Machinery Co Ltd filed Critical Hitachi Construction Machinery Co Ltd
Priority to JP55127126A priority Critical patent/JPS5754635A/en
Publication of JPS5754635A publication Critical patent/JPS5754635A/en
Publication of JPS6337216B2 publication Critical patent/JPS6337216B2/ja
Granted legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2278—Hydraulic circuits
    • E02F9/2296—Systems with a variable displacement pump
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2221—Control of flow rate; Load sensing arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Operation Control Of Excavators (AREA)

Abstract

PURPOSE:To enable the connection of a hydraulic pump, idling at a composite operation time, to a desired actuator, by a method wherein at least one of a plurality of actuators is connected to a plurality of variable discharge capacity pumps via a ON-OFF switch valve. CONSTITUTION:A hydraulic circuit for a hydraulic shovel consists of variable discharge capacity hydraulic pumps 1-4, and hydraulic actuators for an arm cylinder 6, boom cylinders 7A, 7B, a removing motor 8, and travelling motors 9, 10. Each hydraulic actuator is connected to each hydraulic via ON-OFF electromagnetic switch valves 11A-11C, 12A-12C, 13A-13D, and 14A-14D, and each electromagnetic valve is switched ON or OFF according to a timing and a chart on the priority order previously determined.
JP55127126A 1980-09-16 1980-09-16 Hydraulic circuit for civil engineering and construction equipment Granted JPS5754635A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55127126A JPS5754635A (en) 1980-09-16 1980-09-16 Hydraulic circuit for civil engineering and construction equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55127126A JPS5754635A (en) 1980-09-16 1980-09-16 Hydraulic circuit for civil engineering and construction equipment

Publications (2)

Publication Number Publication Date
JPS5754635A true JPS5754635A (en) 1982-04-01
JPS6337216B2 JPS6337216B2 (en) 1988-07-25

Family

ID=14952246

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55127126A Granted JPS5754635A (en) 1980-09-16 1980-09-16 Hydraulic circuit for civil engineering and construction equipment

Country Status (1)

Country Link
JP (1) JPS5754635A (en)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6231705A (en) * 1985-08-02 1987-02-10 Komatsu Ltd Hydraulic circuit device for hydraulic type construction machine
JPS62165003A (en) * 1986-01-10 1987-07-21 Tech Res Assoc Openair Coal Min Mach Working oil distributing device in hydraulic circuit of hydraulic shovel or the like
JPS62225633A (en) * 1986-03-26 1987-10-03 Tech Res Assoc Openair Coal Min Mach Distributor for working oil in oil-pressure circuit of oil-pressure shovel, and the like
CN101929489A (en) * 2009-06-26 2010-12-29 安钛医疗设备股份有限公司 Two-way oil hydraulic system of operating table
WO2013027618A1 (en) * 2011-08-24 2013-02-28 株式会社小松製作所 Hydraulic shovel
WO2013048796A1 (en) * 2011-09-30 2013-04-04 Caterpillar Inc. Meterless hydraulic system having multi-actuator circuit
WO2013059033A1 (en) * 2011-10-21 2013-04-25 Caterpillar Inc. Closed-loop system having multi-circuit flow sharing
WO2013059536A1 (en) * 2011-10-21 2013-04-25 Caterpillar Inc. Hydraulic system having multiple closed-loop circuits
WO2013059110A3 (en) * 2011-10-21 2013-07-11 Caterpillar Inc. Meterless hydraulic system having sharing and combining functionality
CN104011405A (en) * 2011-10-21 2014-08-27 卡特彼勒公司 Hydraulic system having multiple closed-loop circuits
JP2014205977A (en) * 2013-04-11 2014-10-30 日立建機株式会社 Drive unit of working machine
WO2015076130A1 (en) * 2013-11-21 2015-05-28 日立建機株式会社 Work machine driving device
JP2015178864A (en) * 2014-03-19 2015-10-08 日立建機株式会社 Driving device for work machine
WO2016157531A1 (en) * 2015-04-03 2016-10-06 日立建機株式会社 Hydraulic control device for operating machine
JP2017053383A (en) * 2015-09-07 2017-03-16 日立建機株式会社 Driving device for work machine
CN111501871A (en) * 2020-05-29 2020-08-07 三一重机有限公司 Excavator hydraulic system and excavator
KR20210109334A (en) * 2020-02-27 2021-09-06 두산인프라코어 주식회사 Construction machinery
WO2023248579A1 (en) * 2022-06-23 2023-12-28 川崎重工業株式会社 Hydraulic drive device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5473402A (en) * 1977-11-22 1979-06-12 Hitachi Construction Machinery Hydraulic circuit for hydraulic shovel

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5473402A (en) * 1977-11-22 1979-06-12 Hitachi Construction Machinery Hydraulic circuit for hydraulic shovel

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6231705A (en) * 1985-08-02 1987-02-10 Komatsu Ltd Hydraulic circuit device for hydraulic type construction machine
JPS62165003A (en) * 1986-01-10 1987-07-21 Tech Res Assoc Openair Coal Min Mach Working oil distributing device in hydraulic circuit of hydraulic shovel or the like
JPS62225633A (en) * 1986-03-26 1987-10-03 Tech Res Assoc Openair Coal Min Mach Distributor for working oil in oil-pressure circuit of oil-pressure shovel, and the like
CN101929489A (en) * 2009-06-26 2010-12-29 安钛医疗设备股份有限公司 Two-way oil hydraulic system of operating table
US9328480B2 (en) 2011-08-24 2016-05-03 Komatsu Ltd. Hydraulic excavator
WO2013027618A1 (en) * 2011-08-24 2013-02-28 株式会社小松製作所 Hydraulic shovel
WO2013048796A1 (en) * 2011-09-30 2013-04-04 Caterpillar Inc. Meterless hydraulic system having multi-actuator circuit
US9057389B2 (en) 2011-09-30 2015-06-16 Caterpillar Inc. Meterless hydraulic system having multi-actuator circuit
WO2013059033A1 (en) * 2011-10-21 2013-04-25 Caterpillar Inc. Closed-loop system having multi-circuit flow sharing
CN103998795A (en) * 2011-10-21 2014-08-20 卡特彼勒公司 Hydraulic system having multiple closed-loop circuits
CN104011405A (en) * 2011-10-21 2014-08-27 卡特彼勒公司 Hydraulic system having multiple closed-loop circuits
WO2013059110A3 (en) * 2011-10-21 2013-07-11 Caterpillar Inc. Meterless hydraulic system having sharing and combining functionality
WO2013059536A1 (en) * 2011-10-21 2013-04-25 Caterpillar Inc. Hydraulic system having multiple closed-loop circuits
JP2014205977A (en) * 2013-04-11 2014-10-30 日立建機株式会社 Drive unit of working machine
CN105531485A (en) * 2013-11-21 2016-04-27 日立建机株式会社 Work machine driving device
JP2015102107A (en) * 2013-11-21 2015-06-04 日立建機株式会社 Work machine driving device
WO2015076130A1 (en) * 2013-11-21 2015-05-28 日立建機株式会社 Work machine driving device
EP3073125A4 (en) * 2013-11-21 2017-06-28 Hitachi Construction Machinery Co., Ltd. Work machine driving device
US9903094B2 (en) 2013-11-21 2018-02-27 Hitachi Construction Machinery Co., Ltd. Work machine driving device
JP2015178864A (en) * 2014-03-19 2015-10-08 日立建機株式会社 Driving device for work machine
US10400797B2 (en) 2015-04-03 2019-09-03 Hitachi Construction Machinery Co., Ltd. Hydraulic control system for working machine
WO2016157531A1 (en) * 2015-04-03 2016-10-06 日立建機株式会社 Hydraulic control device for operating machine
CN107429713A (en) * 2015-04-03 2017-12-01 日立建机株式会社 The hydraulic control device of Work machine
JPWO2016157531A1 (en) * 2015-04-03 2017-12-07 日立建機株式会社 Hydraulic control device for work machine
CN107429713B (en) * 2015-04-03 2019-08-06 日立建机株式会社 Hydraulic controls for work machines
JP2017053383A (en) * 2015-09-07 2017-03-16 日立建機株式会社 Driving device for work machine
KR20210109334A (en) * 2020-02-27 2021-09-06 두산인프라코어 주식회사 Construction machinery
CN115210432A (en) * 2020-02-27 2022-10-18 现代斗山英维高株式会社 Construction machine
US12054917B2 (en) 2020-02-27 2024-08-06 Hd Hyundai Infracore Co., Ltd. Construction machine
CN111501871A (en) * 2020-05-29 2020-08-07 三一重机有限公司 Excavator hydraulic system and excavator
CN111501871B (en) * 2020-05-29 2025-05-23 三一重机有限公司 Excavator hydraulic system and excavator
WO2023248579A1 (en) * 2022-06-23 2023-12-28 川崎重工業株式会社 Hydraulic drive device

Also Published As

Publication number Publication date
JPS6337216B2 (en) 1988-07-25

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