DE69838700D1 - Hydraulisches Kreislaufsystem für eine hydraulische Arbeitsmaschine - Google Patents

Hydraulisches Kreislaufsystem für eine hydraulische Arbeitsmaschine

Info

Publication number
DE69838700D1
DE69838700D1 DE69838700T DE69838700T DE69838700D1 DE 69838700 D1 DE69838700 D1 DE 69838700D1 DE 69838700 T DE69838700 T DE 69838700T DE 69838700 T DE69838700 T DE 69838700T DE 69838700 D1 DE69838700 D1 DE 69838700D1
Authority
DE
Germany
Prior art keywords
hydraulic
working machine
circulation system
hydraulic working
hydraulic circulation
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.)
Expired - Lifetime
Application number
DE69838700T
Other languages
English (en)
Other versions
DE69838700T2 (de
Inventor
Tsukasa Toyooka
Toichi Hirata
Genroku Sugiyama
Kazunori Nakamura
Kouji Ishikawa
Tsuyoshi Nakamura
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
Priority claimed from JP24110797A external-priority patent/JP3681516B2/ja
Priority claimed from JP24110897A external-priority patent/JP3917257B2/ja
Priority claimed from JP02980498A external-priority patent/JP3657764B2/ja
Application filed by Hitachi Construction Machinery Co Ltd filed Critical Hitachi Construction Machinery Co Ltd
Application granted granted Critical
Publication of DE69838700D1 publication Critical patent/DE69838700D1/de
Publication of DE69838700T2 publication Critical patent/DE69838700T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
    • E02F9/2267—Valves or distributors
    • 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
    • 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
    • E02F9/2232—Control of flow rate; Load sensing arrangements using one or more variable displacement 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
    • E02F9/2221—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
    • E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
    • E02F9/2271—Actuators and supports therefor and protection therefor
    • 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
    • E02F9/2282—Systems using center bypass type changeover valves
    • 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
    • E02F9/2285—Pilot-operated systems
    • 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)
  • 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)
DE69838700T 1997-09-05 1998-09-02 Hydraulisches Kreislaufsystem für eine hydraulische Arbeitsmaschine Expired - Lifetime DE69838700T2 (de)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP24110897 1997-09-05
JP24110797A JP3681516B2 (ja) 1997-09-05 1997-09-05 油圧作業機の油圧回路装置
JP24110797 1997-09-05
JP24110897A JP3917257B2 (ja) 1997-09-05 1997-09-05 油圧作業機の油圧回路装置
JP02980498A JP3657764B2 (ja) 1998-02-12 1998-02-12 油圧回路装置
JP2980498 1998-02-12

Publications (2)

Publication Number Publication Date
DE69838700D1 true DE69838700D1 (de) 2007-12-27
DE69838700T2 DE69838700T2 (de) 2008-10-30

Family

ID=27286724

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69838700T Expired - Lifetime DE69838700T2 (de) 1997-09-05 1998-09-02 Hydraulisches Kreislaufsystem für eine hydraulische Arbeitsmaschine

Country Status (5)

Country Link
US (1) US5940997A (de)
EP (3) EP1801296A3 (de)
KR (1) KR100281008B1 (de)
CN (1) CN1084419C (de)
DE (1) DE69838700T2 (de)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4111286B2 (ja) * 1998-06-30 2008-07-02 コベルコ建機株式会社 建設機械の走行制御方法及び同装置
JP4290861B2 (ja) * 2000-07-28 2009-07-08 コベルコクレーン株式会社 クレーンの油圧回路
JP2002047693A (ja) * 2000-08-02 2002-02-15 Yanmar Diesel Engine Co Ltd 建設機械の走行警報装置
JP3614121B2 (ja) * 2001-08-22 2005-01-26 コベルコ建機株式会社 建設機械の油圧装置
JP3777114B2 (ja) * 2001-11-05 2006-05-24 日立建機株式会社 油圧作業機の油圧回路装置
KR100813774B1 (ko) * 2001-12-31 2008-03-13 두산인프라코어 주식회사 소형 굴삭기의 유압펌프 제어장치
KR20030058377A (ko) * 2001-12-31 2003-07-07 대우종합기계 주식회사 굴삭기의 유압펌프 제어장치
DE10242264B4 (de) * 2002-09-12 2005-02-24 Josef Möbius Bau-Gesellschaft (GmbH & Co.) Verfahren zur Herstellung eines interaktiven Tragsystems aus geotextilummantelten Sandsäulen und den anstehenden Böden zur Abtragung von Bauwerks- und Verkehrslasten bei wenig tragfähigem Untergrund
CN100402763C (zh) * 2002-09-26 2008-07-16 日立建机株式会社 建筑机械
CN100378275C (zh) * 2004-08-27 2008-04-02 中交天津港航勘察设计研究院有限公司 绞吸挖泥船挖深自动控制装置
US9074352B2 (en) 2006-03-27 2015-07-07 John R. Ramun Universal control scheme for mobile hydraulic equipment and method for achieving the same
EP1999316A2 (de) * 2006-03-27 2008-12-10 John R. Ramun Universelles steuerungsschema für eine mobile hydraulische vorrichtung und verfahren zu dessen erhalt
KR100886476B1 (ko) * 2007-03-12 2009-03-05 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 건설기계용 유압회로
RU2458206C2 (ru) * 2007-11-21 2012-08-10 Вольво Констракшн Эквипмент Аб Способ управления рабочей машиной
WO2010071344A1 (ko) * 2008-12-15 2010-06-24 두산인프라코어 주식회사 건설 기계의 유압펌프 유량 제어장치
KR101683317B1 (ko) 2008-12-24 2016-12-07 두산인프라코어 주식회사 중장비의 유압 펌프 제어 장치
US8544963B2 (en) * 2009-09-25 2013-10-01 Toyota Jidosha Kabushiki Kaisha Braking control apparatus
JP5350292B2 (ja) * 2010-02-23 2013-11-27 カヤバ工業株式会社 ハイブリッド建設機械の制御装置
JP2012092864A (ja) * 2010-10-25 2012-05-17 Kanzaki Kokyukoki Manufacturing Co Ltd 油圧駆動作業車両
JP5683361B2 (ja) * 2011-04-01 2015-03-11 日立建機株式会社 作業機械の油圧駆動装置
JP5572586B2 (ja) * 2011-05-19 2014-08-13 日立建機株式会社 作業機械の油圧駆動装置
EP2833002B1 (de) * 2012-03-29 2018-05-09 KYB Corporation Steuerventilvorrichtung für schaufelbagger
JP5758348B2 (ja) * 2012-06-15 2015-08-05 住友建機株式会社 建設機械の油圧回路
JP5778086B2 (ja) * 2012-06-15 2015-09-16 住友建機株式会社 建設機械の油圧回路及びその制御装置
EP2746466B1 (de) * 2012-12-19 2021-01-27 Caterpillar Global Mining LLC System und Verfahren zur Bereitstellung von Hydraulikleistung für verschiedene Hydraulikkreisläufe einer Maschine
JP6220228B2 (ja) * 2013-10-31 2017-10-25 川崎重工業株式会社 建設機械の油圧駆動システム
KR102083687B1 (ko) * 2013-12-26 2020-04-14 두산인프라코어 주식회사 건설기계의 복합동작 제어장치
CN104747401B (zh) * 2013-12-26 2018-09-21 河南森源重工有限公司 一种人工操作装置、中央操作器和应急控制单元组成的应急泵送系统
JP6509899B2 (ja) * 2014-11-10 2019-05-08 住友建機株式会社 作業機械
JP6735257B2 (ja) * 2017-09-07 2020-08-05 株式会社小松製作所 作業機械
GB201912665D0 (en) 2019-09-03 2019-10-16 Artemis Intelligent Power Ltd Hydraulic apparatus
IT202100012032A1 (it) * 2021-05-11 2022-11-11 Cnh Ind Italia Spa Collettore migliorato per valvole selettrici, disposizione idraulica e veicolo da lavoro comprendente il medesimo
CN115467386B (zh) * 2022-09-23 2024-02-13 柳州柳工挖掘机有限公司 挖掘机工况识别系统和挖掘机

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US3631615A (en) * 1969-04-25 1972-01-04 Caterpillar Tractor Co Crawler tractor-scraper combination
US4506464A (en) * 1982-09-10 1985-03-26 Cartner Jack O Hydraulic breakaway system for mobile cutting apparatus
DE3508339A1 (de) * 1985-03-08 1986-09-11 Mannesmann Rexroth GmbH, 8770 Lohr Aus zwei steuerbloecken bestehende steuerventileinrichtung fuer mehrere hydraulische antriebe, insbesondere von mobilgeraeten
US5210964A (en) * 1989-03-09 1993-05-18 The Province Of British Columbia, Ministry Of Forests Spot mounder method and apparatus
DE3919640C2 (de) * 1989-06-16 1996-10-02 Rexroth Mannesmann Gmbh Steuerventileinrichtung mit zwei Steuerblöcken und Pumpensteuerung für mehrere hydraulische Antriebe
JPH086354B2 (ja) * 1989-10-31 1996-01-24 株式会社小松製作所 油圧式掘削機の油圧回路
US4999935A (en) * 1990-05-31 1991-03-19 Douglas Dynamics, Inc. Hydraulic system and apparatus for use with vehicle accessory units
US5481872A (en) * 1991-11-25 1996-01-09 Kabushiki Kaisha Komatsu Seisakusho Hydraulic circuit for operating plural actuators and its pressure compensating valve and maximum load pressure detector
EP0593782B1 (de) * 1992-04-20 1998-07-01 Hitachi Construction Machinery Co., Ltd. Hydraulische schaltungsanordnung für erdbewegungsmaschinen
WO1994009278A1 (en) * 1992-10-09 1994-04-28 Kabushiki Kaisha Komatsu Seisakusho Hydraulic pilot valve
US5265356A (en) * 1992-10-14 1993-11-30 Winter Kent L Snowplow and hydraulic system for same
US5361519A (en) * 1993-02-09 1994-11-08 The Louis Berkman Company Control pad for a snowplow

Also Published As

Publication number Publication date
DE69838700T2 (de) 2008-10-30
CN1084419C (zh) 2002-05-08
EP1801296A3 (de) 2007-09-26
EP0900889A2 (de) 1999-03-10
CN1223324A (zh) 1999-07-21
US5940997A (en) 1999-08-24
EP1801296A2 (de) 2007-06-27
EP1801295A2 (de) 2007-06-27
KR19990029521A (ko) 1999-04-26
EP0900889A3 (de) 1999-10-20
EP1801295A3 (de) 2007-09-26
KR100281008B1 (ko) 2001-02-01
EP0900889B1 (de) 2007-11-14

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Legal Events

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