EP0480037A1 - Vorrichtung zum betätigen von arbeitsgeräten eines hydraulikbaggers - Google Patents

Vorrichtung zum betätigen von arbeitsgeräten eines hydraulikbaggers Download PDF

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Publication number
EP0480037A1
EP0480037A1 EP90909838A EP90909838A EP0480037A1 EP 0480037 A1 EP0480037 A1 EP 0480037A1 EP 90909838 A EP90909838 A EP 90909838A EP 90909838 A EP90909838 A EP 90909838A EP 0480037 A1 EP0480037 A1 EP 0480037A1
Authority
EP
European Patent Office
Prior art keywords
separation mode
hydraulic
working
mode
hydraulic excavator
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
EP90909838A
Other languages
English (en)
French (fr)
Other versions
EP0480037B1 (de
EP0480037A4 (en
Inventor
Fujitoshi Kabushiki Kaisha Komatsu Takamura
Takumi Kabushiki Kaisha Komatsu Seisakusho Onoda
Toshio Kabushiki Kaisha Komatsu 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 EP0480037A1 publication Critical patent/EP0480037A1/de
Publication of EP0480037A4 publication Critical patent/EP0480037A4/en
Application granted granted Critical
Publication of EP0480037B1 publication Critical patent/EP0480037B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
EP90909838A 1989-06-30 1990-06-29 Vorrichtung zum betätigen von arbeitsgeräten eines hydraulikbaggers Expired - Lifetime EP0480037B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP170413/89 1989-06-30
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 (3)

Publication Number Publication Date
EP0480037A1 true EP0480037A1 (de) 1992-04-15
EP0480037A4 EP0480037A4 (en) 1993-03-31
EP0480037B1 EP0480037B1 (de) 1997-03-05

Family

ID=15904466

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90909838A Expired - Lifetime EP0480037B1 (de) 1989-06-30 1990-06-29 Vorrichtung zum betätigen von arbeitsgeräten eines hydraulikbaggers

Country Status (5)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0722018A1 (de) * 1995-01-11 1996-07-17 Shin Caterpillar Mitsubishi Ltd. Vorrichtung zum Steuern von Arbeitsoperationen und Fahrbewegung einer Baumaschine
WO2011006561A1 (de) * 2009-07-17 2011-01-20 Robert Bosch Gmbh Hydraulische steueranordnung

Families Citing this family (3)

* 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
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

Citations (2)

* 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
US4712376A (en) * 1986-10-22 1987-12-15 Caterpillar Inc. Proportional valve control apparatus for fluid systems

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6343259Y2 (de) * 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
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

Patent Citations (2)

* 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
US4712376A (en) * 1986-10-22 1987-12-15 Caterpillar Inc. Proportional valve control apparatus for fluid systems

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO9100396A1 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0722018A1 (de) * 1995-01-11 1996-07-17 Shin Caterpillar Mitsubishi Ltd. Vorrichtung zum Steuern von Arbeitsoperationen und Fahrbewegung einer Baumaschine
US5692377A (en) * 1995-01-11 1997-12-02 Shin Caterpillar Mitsubishi Ltd. Apparatus for controlling lifting operation
WO2011006561A1 (de) * 2009-07-17 2011-01-20 Robert Bosch Gmbh Hydraulische steueranordnung

Also Published As

Publication number Publication date
KR0143065B1 (ko) 1998-09-15
DE69030086T2 (de) 1997-09-11
JP2583127B2 (ja) 1997-02-19
WO1991000396A1 (en) 1991-01-10
DE69030086D1 (de) 1997-04-10
JPH0336336A (ja) 1991-02-18
EP0480037B1 (de) 1997-03-05
KR920702744A (ko) 1992-10-06
EP0480037A4 (en) 1993-03-31

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