EP2597211A4 - Vanne principale d'excavateur hydraulique et excavateur hydraulique équipé de celle-ci - Google Patents

Vanne principale d'excavateur hydraulique et excavateur hydraulique équipé de celle-ci Download PDF

Info

Publication number
EP2597211A4
EP2597211A4 EP11809285.7A EP11809285A EP2597211A4 EP 2597211 A4 EP2597211 A4 EP 2597211A4 EP 11809285 A EP11809285 A EP 11809285A EP 2597211 A4 EP2597211 A4 EP 2597211A4
Authority
EP
European Patent Office
Prior art keywords
hydraulic excavator
same
main valve
excavator main
hydraulic
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
EP11809285.7A
Other languages
German (de)
English (en)
Other versions
EP2597211A1 (fr
EP2597211B1 (fr
Inventor
Qinghua He
Yong Guo
Shiyou Zhang
Guifang Chen
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.)
Sunward Intelligent Equipment Co Ltd
Original Assignee
Sunward Intelligent Equipment 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 Sunward Intelligent Equipment Co Ltd filed Critical Sunward Intelligent Equipment Co Ltd
Publication of EP2597211A1 publication Critical patent/EP2597211A1/fr
Publication of EP2597211A4 publication Critical patent/EP2597211A4/fr
Application granted granted Critical
Publication of EP2597211B1 publication Critical patent/EP2597211B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • 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
    • E02F3/30—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 with a dipper-arm pivoted on a cantilever beam, i.e. boom
    • E02F3/32—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 with a dipper-arm pivoted on a cantilever beam, i.e. boom working downwardly and towards the machine, e.g. with backhoes
    • E02F3/325—Backhoes of the miniature type
    • 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
    • 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
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/20576—Systems with pumps with multiple pumps
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/31—Directional control characterised by the positions of the valve element
    • F15B2211/3105—Neutral or centre positions
    • F15B2211/3116—Neutral or centre positions the pump port being open in the centre position, e.g. so-called open centre

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Operation Control Of Excavators (AREA)
  • Fluid-Pressure Circuits (AREA)
EP11809285.7A 2010-07-21 2011-07-20 Excavateur hydraulique Active EP2597211B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2010102325832A CN101886405B (zh) 2010-07-21 2010-07-21 挖掘节能及平地高效的小型液压挖掘机主阀
PCT/CN2011/077403 WO2012010097A1 (fr) 2010-07-21 2011-07-20 Vanne principale d'excavateur hydraulique et excavateur hydraulique équipé de celle-ci

Publications (3)

Publication Number Publication Date
EP2597211A1 EP2597211A1 (fr) 2013-05-29
EP2597211A4 true EP2597211A4 (fr) 2017-11-29
EP2597211B1 EP2597211B1 (fr) 2021-05-26

Family

ID=43072481

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11809285.7A Active EP2597211B1 (fr) 2010-07-21 2011-07-20 Excavateur hydraulique

Country Status (5)

Country Link
EP (1) EP2597211B1 (fr)
JP (1) JP5869567B2 (fr)
KR (1) KR20130143550A (fr)
CN (1) CN101886405B (fr)
WO (1) WO2012010097A1 (fr)

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* Cited by examiner, † Cited by third party
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CN101886405B (zh) * 2010-07-21 2012-01-11 山河智能装备股份有限公司 挖掘节能及平地高效的小型液压挖掘机主阀
CN102828536B (zh) * 2012-09-18 2015-01-14 三一重机有限公司 挖掘机合流控制系统及挖掘机
JP6012021B2 (ja) * 2012-11-07 2016-10-25 Ｋｙｂ株式会社 パワーショベルの流体圧制御装置
CN103883577B (zh) * 2014-03-28 2016-05-04 四川长江液压件有限责任公司 小型挖掘机用多路阀
CN104005435B (zh) * 2014-06-06 2016-12-07 山东中川液压有限公司 一种高效节能环保油液混合动力挖掘机
CN104006037B (zh) * 2014-06-06 2016-05-11 山东中川液压有限公司 一种三泵式液压挖掘机供油装置
CN104153406A (zh) * 2014-08-05 2014-11-19 山河智能装备股份有限公司 一种具有针对不同工况切换液压回路的挖掘机
CN104454737B (zh) * 2014-12-16 2017-04-26 山河智能装备股份有限公司 一种用于小型挖掘机的片式多路阀液压系统
KR101867528B1 (ko) 2017-11-20 2018-07-17 황종원 안티 드롭밸브의 릴리프 밸브 어셈블리
KR101867525B1 (ko) 2017-11-20 2018-07-17 황종원 안티 드롭밸브
CN108916136B (zh) * 2018-08-06 2024-05-14 泉州鑫豪工程机械科技有限公司 一种小型挖掘机液压系统
CN111155591B (zh) * 2020-01-20 2024-07-12 广西玉柴重工有限公司 一种双泵共轨多路阀液压系统
CN111425468B (zh) * 2020-04-14 2024-04-26 广西玉柴重工有限公司 一种三泵节流系统泵桥加速模块
CN112177996B (zh) * 2020-09-18 2023-05-05 江苏徐工工程机械研究院有限公司 一种正流量上下车复合稳定控制系统及方法
CN112963393B (zh) * 2021-02-18 2023-06-13 三一重机有限公司 挖掘机多路阀、挖掘机液压系统及其控制方法
CN113152550B (zh) * 2021-04-07 2022-12-20 柳州柳工挖掘机有限公司 操作模式控制系统及方法和挖掘机
CN115030259B (zh) * 2022-07-26 2024-04-09 徐工集团工程机械股份有限公司科技分公司 一种用于装载机的多路阀、装载机液压系统及装载机

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JP3139792B2 (ja) * 1991-10-08 2001-03-05 カヤバ工業株式会社 建設車両の直進走行回路
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
JP2000144805A (ja) * 1998-11-06 2000-05-26 Komatsu Ltd アウトリガ伸縮速度制御装置
JP4137431B2 (ja) * 2001-11-09 2008-08-20 ナブテスコ株式会社 油圧回路
JP2003184815A (ja) * 2001-12-17 2003-07-03 Hitachi Constr Mach Co Ltd 建設機械の油圧制御装置及び油圧ショベルの油圧制御装置
JP4223421B2 (ja) * 2004-03-10 2009-02-12 ナブテスコ株式会社 建設機械の油圧回路
JP2006183413A (ja) * 2004-12-28 2006-07-13 Shin Caterpillar Mitsubishi Ltd 建設機械の制御回路
US7165395B2 (en) * 2005-02-11 2007-01-23 Deere & Company Semi-active ride control for a mobile machine
CN100464036C (zh) * 2005-03-28 2009-02-25 广西柳工机械股份有限公司 用于液压挖掘机工作装置的轨迹控制系统及方法
KR101265342B1 (ko) * 2006-12-22 2013-05-20 두산인프라코어 주식회사 굴삭기의 수평 다림질 및 법면 작업성 개선장치
CN101509266B (zh) * 2009-02-23 2011-05-18 三一重机有限公司 一种改善挖掘机平地性能的控制方法
CN101886405B (zh) * 2010-07-21 2012-01-11 山河智能装备股份有限公司 挖掘节能及平地高效的小型液压挖掘机主阀
CN201738353U (zh) * 2010-07-21 2011-02-09 湖南山河智能机械股份有限公司 一种挖掘节能及平地高效的小型液压挖掘机主阀

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
No further relevant documents disclosed *
See also references of WO2012010097A1 *

Also Published As

Publication number Publication date
CN101886405B (zh) 2012-01-11
WO2012010097A1 (fr) 2012-01-26
EP2597211A1 (fr) 2013-05-29
KR20130143550A (ko) 2013-12-31
EP2597211B1 (fr) 2021-05-26
JP5869567B2 (ja) 2016-02-24
CN101886405A (zh) 2010-11-17
JP2013532781A (ja) 2013-08-19

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