DE69030086T2 - Vorrichtung zum betätigen von arbeitsgeräten eines hydraulikbaggers - Google Patents

Vorrichtung zum betätigen von arbeitsgeräten eines hydraulikbaggers

Info

Publication number
DE69030086T2
DE69030086T2 DE69030086T DE69030086T DE69030086T2 DE 69030086 T2 DE69030086 T2 DE 69030086T2 DE 69030086 T DE69030086 T DE 69030086T DE 69030086 T DE69030086 T DE 69030086T DE 69030086 T2 DE69030086 T2 DE 69030086T2
Authority
DE
Germany
Prior art keywords
separation mode
operating
mode
hydraulic
actuation
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 - Fee Related
Application number
DE69030086T
Other languages
German (de)
English (en)
Other versions
DE69030086D1 (de
Inventor
Takumi Kabushiki Kaisha Onoda
Fujitoshi Kabushiki K Takamura
Toshio Kabushiki Kais Yokoyama
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.)
Komatsu Ltd
Original Assignee
Komatsu 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 Komatsu Ltd filed Critical Komatsu Ltd
Publication of DE69030086D1 publication Critical patent/DE69030086D1/de
Application granted granted Critical
Publication of DE69030086T2 publication Critical patent/DE69030086T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • E02F9/2278—Hydraulic circuits
    • E02F9/2296—Systems with a variable displacement pump
    • 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
    • E02F9/2203—Arrangements for controlling the attitude of actuators, e.g. speed, floating function
    • 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

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)
DE69030086T 1989-06-30 1990-06-29 Vorrichtung zum betätigen von arbeitsgeräten eines hydraulikbaggers Expired - Fee Related DE69030086T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1170413A JP2583127B2 (ja) 1989-06-30 1989-06-30 油圧式掘削機の走行・作業機操作装置
PCT/JP1990/000852 WO1991000396A1 (en) 1989-06-30 1990-06-29 Device for operating traveling and working machines of hydraulic excavator

Publications (2)

Publication Number Publication Date
DE69030086D1 DE69030086D1 (de) 1997-04-10
DE69030086T2 true DE69030086T2 (de) 1997-09-11

Family

ID=15904466

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69030086T Expired - Fee Related DE69030086T2 (de) 1989-06-30 1990-06-29 Vorrichtung zum betätigen von arbeitsgeräten eines hydraulikbaggers

Country Status (5)

Country Link
EP (1) EP0480037B1 (ja)
JP (1) JP2583127B2 (ja)
KR (1) KR0143065B1 (ja)
DE (1) DE69030086T2 (ja)
WO (1) WO1991000396A1 (ja)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5547601A (en) * 1992-09-09 1996-08-20 Jnj Industries, Inc. CFC-free solvent for solvating solder flux
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
KR100464761B1 (ko) * 1997-11-29 2005-04-06 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 중장비용 유압장치
KR100717922B1 (ko) * 2003-03-20 2007-05-11 현대중공업 주식회사 붐 고속 상승용 2단 유압장치
DE102009033645A1 (de) * 2009-07-17 2011-01-20 Robert Bosch Gmbh Hydraulische Steueranordnung

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3960284A (en) * 1972-10-02 1976-06-01 American Hoist & Derrick Company Hydraulic backhoe circuitry
JPS6343259Y2 (ja) * 1980-11-10 1988-11-11
JPS61142234A (ja) * 1984-12-17 1986-06-30 Sumitomo Heavy Ind Ltd 油圧ショベル等の建設機械の油圧回路
JPS6258033A (ja) * 1985-09-07 1987-03-13 Hitachi Constr Mach Co Ltd 建設機械
US4712376A (en) * 1986-10-22 1987-12-15 Caterpillar Inc. Proportional valve control apparatus for fluid systems
JPH0823768B2 (ja) * 1987-01-30 1996-03-06 株式会社小松製作所 操縦制御装置
JPH0745744B2 (ja) * 1987-09-29 1995-05-17 日立建機株式会社 油圧駆動装置
JPH0826554B2 (ja) * 1987-12-16 1996-03-13 株式会社小松製作所 油圧堀削作業機の油圧回路装置

Also Published As

Publication number Publication date
KR920702744A (ko) 1992-10-06
WO1991000396A1 (en) 1991-01-10
KR0143065B1 (ko) 1998-09-15
JPH0336336A (ja) 1991-02-18
DE69030086D1 (de) 1997-04-10
JP2583127B2 (ja) 1997-02-19
EP0480037A4 (en) 1993-03-31
EP0480037A1 (en) 1992-04-15
EP0480037B1 (en) 1997-03-05

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee