IN165827B - - Google Patents

Info

Publication number
IN165827B
IN165827B IN80/CAL/87A IN80CA1987A IN165827B IN 165827 B IN165827 B IN 165827B IN 80CA1987 A IN80CA1987 A IN 80CA1987A IN 165827 B IN165827 B IN 165827B
Authority
IN
India
Application number
IN80/CAL/87A
Other languages
English (en)
Inventor
Yukio Aoyagi
Shuichi Ichiyama
Keiichiro Uno
Tomohiko Yasuda
Original Assignee
Hitachi Construction Machinery
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
Priority claimed from JP61012987A external-priority patent/JPS62174423A/ja
Priority claimed from JP61076797A external-priority patent/JPH0721281B2/ja
Application filed by Hitachi Construction Machinery filed Critical Hitachi Construction Machinery
Publication of IN165827B publication Critical patent/IN165827B/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
    • E02F3/43—Control of dipper or bucket position; Control of sequence of drive operations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/08—Servomotor systems incorporating electrically operated control means
    • F15B21/087—Control strategy, e.g. with block diagram
    • 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
    • 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
    • E02F9/2239—Control of flow rate; Load sensing arrangements using two or more pumps with cross-assistance
    • E02F9/2242—Control of flow rate; Load sensing arrangements using two or more pumps with cross-assistance including an electronic controller
    • 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
    • E02F9/2292—Systems with two or more pumps
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Operation Control Of Excavators (AREA)
  • Fluid-Pressure Circuits (AREA)
IN80/CAL/87A 1986-01-25 1987-01-27 IN165827B (en:Method)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP61012987A JPS62174423A (ja) 1986-01-25 1986-01-25 土木建設機械の油圧駆動装置
JP61076797A JPH0721281B2 (ja) 1986-04-04 1986-04-04 油圧回路

Publications (1)

Publication Number Publication Date
IN165827B true IN165827B (en:Method) 1990-01-20

Family

ID=26348699

Family Applications (1)

Application Number Title Priority Date Filing Date
IN80/CAL/87A IN165827B (en:Method) 1986-01-25 1987-01-27

Country Status (6)

Country Link
US (1) US4768339A (en:Method)
EP (1) EP0235545B1 (en:Method)
KR (1) KR910009256B1 (en:Method)
CN (1) CN1009480B (en:Method)
DE (1) DE3764824D1 (en:Method)
IN (1) IN165827B (en:Method)

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DE68909580T2 (de) * 1988-07-08 1994-04-21 Hitachi Construction Machinery Hydrodynamische antriebsvorrichtung.
JP2670815B2 (ja) * 1988-07-29 1997-10-29 株式会社小松製作所 建設機械の制御装置
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JPH0288005U (en:Method) * 1988-12-27 1990-07-12
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GB2251232B (en) * 1990-09-29 1995-01-04 Samsung Heavy Ind Automatic actuating system for actuators of excavator
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US5267441A (en) * 1992-01-13 1993-12-07 Caterpillar Inc. Method and apparatus for limiting the power output of a hydraulic system
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JPH05256303A (ja) * 1992-01-15 1993-10-05 Caterpillar Inc 油圧回路制御装置
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JP3013225B2 (ja) * 1995-01-11 2000-02-28 新キャタピラー三菱株式会社 吊り作業制御装置
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JP3606976B2 (ja) * 1995-12-26 2005-01-05 日立建機株式会社 油圧作業機の油圧制御システム
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AU720849B2 (en) * 1996-03-28 2000-06-15 Clark Equipment Company Multifunction valve stack
US6050090A (en) * 1996-06-11 2000-04-18 Kabushiki Kaisha Kobe Seiko Sho Control apparatus for hydraulic excavator
JP3943779B2 (ja) * 1999-01-19 2007-07-11 日立建機株式会社 土木・建設機械の油圧駆動装置
US6357231B1 (en) * 2000-05-09 2002-03-19 Clark Equipment Company Hydraulic pump circuit for mini excavators
US6732512B2 (en) * 2002-09-25 2004-05-11 Husco International, Inc. Velocity based electronic control system for operating hydraulic equipment
US6990807B2 (en) * 2002-12-09 2006-01-31 Coneqtec Corporation Auxiliary hydraulic drive system
US7155909B2 (en) * 2003-05-15 2007-01-02 Kobelco Construction Machinery Co., Ltd. Hydraulic controller for working machine
JP3985756B2 (ja) * 2003-09-05 2007-10-03 コベルコ建機株式会社 建設機械の油圧制御回路
GB2422876B (en) * 2003-11-14 2007-12-12 Komatsu Mfg Co Ltd Hydraulic pressure control device of construction machine
DE102006061305B3 (de) * 2006-12-22 2008-07-10 Hydac Filtertechnik Gmbh Ansteuereinrichtung für hydraulische Verbraucher
WO2009126893A1 (en) * 2008-04-11 2009-10-15 Eaton Corporation Hydraulic system including fixed displacement pump for driving multiple variable loads and method of operation
CA2797828C (en) * 2010-04-30 2017-04-18 Eaton Corporation Multiple fluid pump combination circuit
CN102042274B (zh) * 2010-08-19 2013-03-27 中联重科股份有限公司 液压控制回路和液压马达控制系统
DE102011108851A1 (de) * 2011-07-28 2013-01-31 Liebherr-Werk Ehingen Gmbh Kransteuerungssystem
US8966892B2 (en) 2011-08-31 2015-03-03 Caterpillar Inc. Meterless hydraulic system having restricted primary makeup
US8944103B2 (en) 2011-08-31 2015-02-03 Caterpillar Inc. Meterless hydraulic system having displacement control valve
US8863509B2 (en) 2011-08-31 2014-10-21 Caterpillar Inc. Meterless hydraulic system having load-holding bypass
JP5631829B2 (ja) * 2011-09-21 2014-11-26 住友重機械工業株式会社 油圧制御装置及び油圧制御方法
US9151018B2 (en) 2011-09-30 2015-10-06 Caterpillar Inc. Closed-loop hydraulic system having energy recovery
US9057389B2 (en) 2011-09-30 2015-06-16 Caterpillar Inc. Meterless hydraulic system having multi-actuator circuit
US9051714B2 (en) 2011-09-30 2015-06-09 Caterpillar Inc. Meterless hydraulic system having multi-actuator circuit
US8966891B2 (en) 2011-09-30 2015-03-03 Caterpillar Inc. Meterless hydraulic system having pump protection
US8893490B2 (en) 2011-10-21 2014-11-25 Caterpillar Inc. Hydraulic system
US9068578B2 (en) 2011-10-21 2015-06-30 Caterpillar Inc. Hydraulic system having flow combining capabilities
US8978373B2 (en) 2011-10-21 2015-03-17 Caterpillar Inc. Meterless hydraulic system having flow sharing and combining functionality
US8943819B2 (en) 2011-10-21 2015-02-03 Caterpillar Inc. Hydraulic system
US8919114B2 (en) 2011-10-21 2014-12-30 Caterpillar Inc. Closed-loop hydraulic system having priority-based sharing
US20130098013A1 (en) * 2011-10-21 2013-04-25 Brad A. Edler Closed-loop system having multi-circuit flow sharing
US8910474B2 (en) 2011-10-21 2014-12-16 Caterpillar Inc. Hydraulic system
US8984873B2 (en) 2011-10-21 2015-03-24 Caterpillar Inc. Meterless hydraulic system having flow sharing and combining functionality
US20130098011A1 (en) * 2011-10-21 2013-04-25 Michael L. Knussman Hydraulic system having multiple closed-loop circuits
US8973358B2 (en) 2011-10-21 2015-03-10 Caterpillar Inc. Closed-loop hydraulic system having force modulation
US8978374B2 (en) 2011-10-21 2015-03-17 Caterpillar Inc. Meterless hydraulic system having flow sharing and combining functionality
US9080310B2 (en) 2011-10-21 2015-07-14 Caterpillar Inc. Closed-loop hydraulic system having regeneration configuration
CN102489553A (zh) * 2011-11-22 2012-06-13 沈阳黎明航空发动机(集团)有限责任公司 一种异型零件胀型装置
DE102011119945A1 (de) * 2011-12-01 2013-06-06 Liebherr-Hydraulikbagger Gmbh Hydrauliksystem
US9279236B2 (en) 2012-06-04 2016-03-08 Caterpillar Inc. Electro-hydraulic system for recovering and reusing potential energy
US9290912B2 (en) 2012-10-31 2016-03-22 Caterpillar Inc. Energy recovery system having integrated boom/swing circuits
CN102966616A (zh) * 2012-11-19 2013-03-13 无锡市京锡冶金液压机电有限公司 一种液压系统传动机构执行组件顺序动作方法
CN103148060B (zh) * 2013-01-09 2015-08-26 中联重科股份有限公司渭南分公司 登车扶梯的升降控制系统和控制方法
US9290911B2 (en) 2013-02-19 2016-03-22 Caterpillar Inc. Energy recovery system for hydraulic machine
CN104747512B (zh) * 2013-12-31 2018-07-06 北京威猛机械制造有限公司 液压系统和钻机
CN103727294B (zh) * 2014-01-20 2017-01-25 河南华润电力首阳山有限公司 一种控制装置及气压系统
CN104533890B (zh) * 2014-12-23 2016-08-31 南京航空航天大学 一种三向加载液压装置
DE102015016846A1 (de) * 2015-12-23 2017-06-29 Hydac Fluidtechnik Gmbh Ventil, insbesondere 4/2-Wegeschieberventil
WO2017204698A1 (en) * 2016-05-23 2017-11-30 Volvo Construction Equipment Ab Hydraulic system
CN107023533B (zh) * 2017-06-22 2018-03-16 合肥工业大学 一种用于弹性轴承多维刚度测试的液压控制系统
CN108061068B (zh) * 2018-01-08 2024-04-23 中国铁建重工集团股份有限公司 双护盾tbm快速复位液压系统及掘进装备
CN110486341B (zh) * 2018-05-14 2023-03-21 博世力士乐（北京）液压有限公司 液压控制系统以及移动式工作设备
WO2020101004A1 (ja) * 2018-11-14 2020-05-22 住友重機械工業株式会社 ショベル、ショベルの制御装置
CN111485590A (zh) * 2020-05-28 2020-08-04 三一重机有限公司 液压控制系统、挖掘机及挖掘机控制方法

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DE2101492B2 (de) * 1971-01-14 1973-02-15 Cari Metz GmbH, 7500 Karlsruhe Vorrichtung zur unabhaengigen steuerung mehrerer bewegungsablaeufe von ausfahrbaren leitern, masten od. dgl
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DE3271311D1 (en) * 1981-03-03 1986-07-03 Hitachi Construction Machinery Hydrostatic drive system for civil engineering and construction machinery
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JPS58146630A (ja) * 1982-02-25 1983-09-01 Hitachi Constr Mach Co Ltd 油圧作業機械の油圧回路

Also Published As

Publication number Publication date
US4768339A (en) 1988-09-06
CN1009480B (zh) 1990-09-05
EP0235545B1 (en) 1990-09-12
EP0235545A3 (en) 1988-02-03
EP0235545A2 (en) 1987-09-09
KR910009256B1 (ko) 1991-11-07
DE3764824D1 (de) 1990-10-18
CN87100435A (zh) 1987-09-16
KR870007339A (ko) 1987-08-18

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