ATE377676T1 - Hydraulische steuervorrichtung für hydraulikbagger - Google Patents

Hydraulische steuervorrichtung für hydraulikbagger

Info

Publication number
ATE377676T1
ATE377676T1 AT05102015T AT05102015T ATE377676T1 AT E377676 T1 ATE377676 T1 AT E377676T1 AT 05102015 T AT05102015 T AT 05102015T AT 05102015 T AT05102015 T AT 05102015T AT E377676 T1 ATE377676 T1 AT E377676T1
Authority
AT
Austria
Prior art keywords
confluence
hydraulic
control valve
arm
switching
Prior art date
Application number
AT05102015T
Other languages
English (en)
Inventor
Hidekazu Oka
Original Assignee
Kobelco Constr Machinery 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 Kobelco Constr Machinery Ltd filed Critical Kobelco Constr Machinery Ltd
Application granted granted Critical
Publication of ATE377676T1 publication Critical patent/ATE377676T1/de

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
    • E02F9/2221—Control of flow rate; Load sensing arrangements
    • E02F9/2239—Control of flow rate; Load sensing arrangements using two or more pumps with cross-assistance
    • 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)
  • Operation Control Of Excavators (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
AT05102015T 2004-03-18 2005-03-15 Hydraulische steuervorrichtung für hydraulikbagger ATE377676T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004078841 2004-03-18

Publications (1)

Publication Number Publication Date
ATE377676T1 true ATE377676T1 (de) 2007-11-15

Family

ID=34836578

Family Applications (1)

Application Number Title Priority Date Filing Date
AT05102015T ATE377676T1 (de) 2004-03-18 2005-03-15 Hydraulische steuervorrichtung für hydraulikbagger

Country Status (4)

Country Link
US (1) US7178333B2 (de)
EP (1) EP1577447B1 (de)
AT (1) ATE377676T1 (de)
DE (1) DE602005003151T2 (de)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7178333B2 (en) 2004-03-18 2007-02-20 Kobelco Construction Machinery Co., Ltd. Hydraulic control system for hydraulic excavator
JP4655795B2 (ja) * 2005-07-15 2011-03-23 コベルコ建機株式会社 油圧ショベルの油圧制御装置
JP4232784B2 (ja) * 2006-01-20 2009-03-04 コベルコ建機株式会社 作業機械の油圧制御装置
JP4353190B2 (ja) * 2006-02-27 2009-10-28 コベルコ建機株式会社 建設機械の油圧回路
KR101035666B1 (ko) * 2006-05-15 2011-05-19 가부시키가이샤 고마쓰 세이사쿠쇼 유압 주행 차량
KR100753990B1 (ko) * 2006-08-29 2007-08-31 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 주행직진용 유압회로
KR100900436B1 (ko) * 2007-05-21 2009-06-01 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 무한궤도형 중장비의 주행장치
US8167089B2 (en) * 2008-01-15 2012-05-01 Bennu Parts And Service, Inc. Liftable scaffold
JP4953325B2 (ja) * 2009-03-12 2012-06-13 キャタピラー エス エー アール エル 作業機械
CN101899850B (zh) * 2010-07-29 2012-07-18 三一重机有限公司 一种降低挖掘机启动负载的控制方法及装置
CN102140807B (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方法
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
EP2708661A4 (de) * 2011-05-11 2015-05-13 Volvo Constr Equip Ab Hybridbagger mit schnellstoppvorrichtung für hybridbetätiger
KR20140074306A (ko) * 2011-10-07 2014-06-17 볼보 컨스트럭션 이큅먼트 에이비 건설기계용 작업장치 구동 제어시스템
JP5805581B2 (ja) * 2012-04-23 2015-11-04 住友建機株式会社 建設機械の油圧回路及びその油圧制御装置
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
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
JP6196499B2 (ja) * 2013-08-20 2017-09-13 ナブテスコ株式会社 建設機械の多連方向切換弁
KR102128630B1 (ko) * 2014-03-24 2020-06-30 두산인프라코어 주식회사 유압시스템에서 스윙 모터의 제어방법 및 유압시스템
EP3290595B1 (de) * 2015-04-29 2021-02-17 Volvo Construction Equipment AB Durchflussregler einer baumaschine und steuerungsverfahren dafür
DE102016003972A1 (de) * 2016-04-01 2017-10-05 Hydac System Gmbh Steuervorrichtung
JP6575916B2 (ja) * 2016-08-17 2019-09-18 日立建機株式会社 作業車両
CN106640820A (zh) * 2017-01-22 2017-05-10 山东常林机械集团股份有限公司 多路控制阀
CN111344495B (zh) * 2017-11-08 2022-07-19 沃尔沃建筑设备公司 液压回路
US10677269B2 (en) 2018-08-30 2020-06-09 Jack K. Lippett Hydraulic system combining two or more hydraulic functions
JP7165016B2 (ja) 2018-10-02 2022-11-02 川崎重工業株式会社 油圧ショベル駆動システム
CN110230334A (zh) * 2019-06-11 2019-09-13 徐州徐工挖掘机械有限公司 一种液压挖掘机智能平地装置及其控制方法
EP4424930B1 (de) * 2021-10-29 2025-11-26 Sumitomo Construction Machinery Co., Ltd. Schaufel
CN117897538A (zh) * 2021-10-29 2024-04-16 住友建机株式会社 挖土机
US20250376039A1 (en) * 2024-06-07 2025-12-11 Caterpillar Inc. Hydraulic system for a dynamic energy transfer system including hydraulic assist

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2090383B (en) * 1980-12-26 1984-08-30 Kubota Ltd Hydrostatic transmission for a tracked vehicle
JPH0791846B2 (ja) * 1988-12-19 1995-10-09 株式会社小松製作所 油圧パワーショベルのサービス弁回路
JP2697473B2 (ja) * 1992-03-31 1998-01-14 油谷重工株式会社 建設機械の合流装置
JP3425844B2 (ja) 1996-09-30 2003-07-14 コベルコ建機株式会社 油圧ショベル
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
JP3491600B2 (ja) 2000-04-13 2004-01-26 コベルコ建機株式会社 建設機械の油圧制御回路
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
US7178333B2 (en) 2004-03-18 2007-02-20 Kobelco Construction Machinery Co., Ltd. Hydraulic control system for hydraulic excavator

Also Published As

Publication number Publication date
US7178333B2 (en) 2007-02-20
DE602005003151D1 (de) 2007-12-20
EP1577447A1 (de) 2005-09-21
US20050204734A1 (en) 2005-09-22
EP1577447B1 (de) 2007-11-07
DE602005003151T2 (de) 2008-08-28

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