DE69525136D1 - Hydraulikkreislauf für hydraulikbagger - Google Patents

Hydraulikkreislauf für hydraulikbagger

Info

Publication number
DE69525136D1
DE69525136D1 DE69525136T DE69525136T DE69525136D1 DE 69525136 D1 DE69525136 D1 DE 69525136D1 DE 69525136 T DE69525136 T DE 69525136T DE 69525136 T DE69525136 T DE 69525136T DE 69525136 D1 DE69525136 D1 DE 69525136D1
Authority
DE
Germany
Prior art keywords
hydraulic
excavators
circuit
hydraulic circuit
hydraulic excavators
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
DE69525136T
Other languages
English (en)
Other versions
DE69525136T2 (de
Inventor
Genroku Sugiyama
Toichi Hirata
Koji Ishikawa
Tsukasa Toyooka
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
Application filed by Hitachi Construction Machinery Co Ltd filed Critical Hitachi Construction Machinery Co Ltd
Application granted granted Critical
Publication of DE69525136D1 publication Critical patent/DE69525136D1/de
Publication of DE69525136T2 publication Critical patent/DE69525136T2/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
    • E02F9/2278—Hydraulic circuits
    • E02F9/2282—Systems using center bypass type changeover valves
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • 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
    • E02F3/425—Drive systems for dipper-arms, backhoes or the like
    • 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
    • E02F9/2225—Control of flow rate; Load sensing arrangements using pressure-compensating valves
    • E02F9/2228—Control of flow rate; Load sensing arrangements using pressure-compensating valves 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
    • E02F9/2221—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
    • E02F9/2267—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
    • E02F9/2278—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)
  • Mechanical Engineering (AREA)
  • Operation Control Of Excavators (AREA)
  • Fluid-Pressure Circuits (AREA)
DE69525136T 1994-06-28 1995-06-23 Hydraulikkreislauf für hydraulikbagger Expired - Lifetime DE69525136T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP6146471A JP2892939B2 (ja) 1994-06-28 1994-06-28 油圧掘削機の油圧回路装置
PCT/JP1995/001258 WO1996000820A1 (fr) 1994-06-28 1995-06-23 Appareil a circuits hydrauliques pour excavatrices hydrauliques

Publications (2)

Publication Number Publication Date
DE69525136D1 true DE69525136D1 (de) 2002-03-14
DE69525136T2 DE69525136T2 (de) 2003-01-02

Family

ID=15408394

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69525136T Expired - Lifetime DE69525136T2 (de) 1994-06-28 1995-06-23 Hydraulikkreislauf für hydraulikbagger

Country Status (7)

Country Link
US (1) US5673558A (de)
EP (1) EP0715029B1 (de)
JP (1) JP2892939B2 (de)
KR (1) KR0173834B1 (de)
CN (1) CN1081268C (de)
DE (1) DE69525136T2 (de)
WO (1) WO1996000820A1 (de)

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JP3183815B2 (ja) * 1995-12-27 2001-07-09 日立建機株式会社 油圧ショベルの油圧回路
EP0796749B1 (de) * 1996-03-19 2001-10-17 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Nutzfahrzeug
US6050090A (en) * 1996-06-11 2000-04-18 Kabushiki Kaisha Kobe Seiko Sho Control apparatus for hydraulic excavator
JPH1037907A (ja) * 1996-07-26 1998-02-13 Komatsu Ltd 圧油供給装置
JPH1113091A (ja) * 1997-06-23 1999-01-19 Hitachi Constr Mach Co Ltd 建設機械の油圧駆動装置
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
JP3846775B2 (ja) * 2001-02-06 2006-11-15 新キャタピラー三菱株式会社 作業機械におけるブームシリンダの油圧制御回路
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
KR100638392B1 (ko) * 2002-09-05 2006-10-26 히다치 겡키 가부시키 가이샤 건설기계의 유압구동장치
JP3818252B2 (ja) * 2002-10-31 2006-09-06 コベルコ建機株式会社 油圧ショベルの油圧回路
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KR101155717B1 (ko) * 2004-12-22 2012-06-12 두산인프라코어 주식회사 굴삭기의 붐-선회 복합동작 유압제어장치
KR101151562B1 (ko) * 2004-12-29 2012-05-30 두산인프라코어 주식회사 휠로더의 유압펌프 제어장치
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JP4380643B2 (ja) * 2006-02-20 2009-12-09 コベルコ建機株式会社 作業機械の油圧制御装置
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KR101053175B1 (ko) * 2006-10-19 2011-08-01 주식회사 유압사랑 에너지 절감형 3펌프 제어용 콘트롤 밸브의 유압시스템
US20110056192A1 (en) * 2009-09-10 2011-03-10 Robert Weber Technique for controlling pumps in a hydraulic system
CN101793042B (zh) * 2009-12-31 2011-12-07 福田雷沃国际重工股份有限公司 用于协调挖掘机机身回转和动臂摆动的液压回路装置
CN102127918B (zh) * 2010-01-19 2012-09-05 斗山工程机械（中国）有限公司 液压执行机构、液压执行方法和挖掘机
JP5079827B2 (ja) 2010-02-10 2012-11-21 日立建機株式会社 油圧ショベルの油圧駆動装置
JP5791703B2 (ja) * 2010-04-30 2015-10-07 イートン コーポレーションＥａｔｏｎ Ｃｏｒｐｏｒａｔｉｏｎ 複合流体ポンプの組合せ回路
US8718845B2 (en) 2010-10-06 2014-05-06 Caterpillar Global Mining Llc Energy management system for heavy equipment
US8606451B2 (en) 2010-10-06 2013-12-10 Caterpillar Global Mining Llc Energy system for heavy equipment
US8626403B2 (en) 2010-10-06 2014-01-07 Caterpillar Global Mining Llc Energy management and storage system
CN102140808B (zh) * 2011-01-11 2012-05-23 徐州徐工挖掘机械有限公司 一种提高挖掘机挖掘操纵特性和平整作业特性的装置
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
CN102296665B (zh) * 2011-06-23 2013-04-24 上海三一重机有限公司 一种搭载负载敏感主阀与正流量泵的挖掘机液压***
MX2013015289A (es) 2011-07-01 2014-03-31 Eaton Corp Sistemas hidraulicos utilizando sistemas de bombas de ciclos abierto y cerrado en combinacion.
CN102518612B (zh) * 2011-12-08 2014-12-03 上海三一重机有限公司 一种液压挖掘机斗杆再生功能实现装置
JP5927981B2 (ja) * 2012-01-11 2016-06-01 コベルコ建機株式会社 油圧制御装置及びこれを備えた建設機械
JP5901378B2 (ja) * 2012-03-23 2016-04-06 Ｋｙｂ株式会社 走行制御バルブ
JP5809602B2 (ja) * 2012-05-31 2015-11-11 日立建機株式会社 多連弁装置
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
JP5978056B2 (ja) 2012-08-07 2016-08-24 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
US9190852B2 (en) 2012-09-21 2015-11-17 Caterpillar Global Mining Llc Systems and methods for stabilizing power rate of change within generator based applications
CN102943499A (zh) * 2012-11-16 2013-02-27 无锡汇虹机械制造有限公司 一种中小型挖掘机负载敏感***节能方法
JP5800846B2 (ja) * 2013-03-22 2015-10-28 日立建機株式会社 ホイール式作業車両の走行制御装置
JP6569852B2 (ja) * 2015-06-25 2019-09-04 ヤンマー株式会社 油圧装置
JP6683640B2 (ja) * 2017-02-20 2020-04-22 日立建機株式会社 建設機械
JP6646007B2 (ja) * 2017-03-31 2020-02-14 日立建機株式会社 建設機械の油圧制御装置
CN109563696B (zh) 2017-05-09 2021-05-07 日立建机株式会社 作业机械
JP6850707B2 (ja) * 2017-09-29 2021-03-31 日立建機株式会社 作業機械
US10677269B2 (en) 2018-08-30 2020-06-09 Jack K. Lippett Hydraulic system combining two or more hydraulic functions
JP7221101B2 (ja) * 2019-03-20 2023-02-13 日立建機株式会社 油圧ショベル
JP6903250B2 (ja) * 2019-03-28 2021-07-14 日立建機株式会社 作業機械

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Also Published As

Publication number Publication date
CN1081268C (zh) 2002-03-20
JP2892939B2 (ja) 1999-05-17
DE69525136T2 (de) 2003-01-02
JPH0813547A (ja) 1996-01-16
EP0715029A1 (de) 1996-06-05
EP0715029A4 (de) 1997-12-17
EP0715029B1 (de) 2002-01-23
KR0173834B1 (ko) 1999-02-18
CN1129964A (zh) 1996-08-28
KR960704126A (ko) 1996-08-31
US5673558A (en) 1997-10-07
WO1996000820A1 (fr) 1996-01-11

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