DE50307494D1 - Steuereinrichtung für ein arbeitsgerät mit einer ausleger gehaltenen schaufel - Google Patents

Steuereinrichtung für ein arbeitsgerät mit einer ausleger gehaltenen schaufel

Info

Publication number
DE50307494D1
DE50307494D1 DE50307494T DE50307494T DE50307494D1 DE 50307494 D1 DE50307494 D1 DE 50307494D1 DE 50307494 T DE50307494 T DE 50307494T DE 50307494 T DE50307494 T DE 50307494T DE 50307494 D1 DE50307494 D1 DE 50307494D1
Authority
DE
Germany
Prior art keywords
extension arm
pressure medium
scoop
cylinder
flow
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
DE50307494T
Other languages
English (en)
Inventor
Wolfgang Kauss
Frederic Lamarche
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.)
Bosch Rexroth AG
Original Assignee
Bosch Rexroth AG
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
Priority claimed from DE10334321A external-priority patent/DE10334321A1/de
Application filed by Bosch Rexroth AG filed Critical Bosch Rexroth AG
Application granted granted Critical
Publication of DE50307494D1 publication Critical patent/DE50307494D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/003—Systems with load-holding 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
    • E02F3/43—Control of dipper or bucket position; Control of sequence of drive operations
    • E02F3/431—Control of dipper or bucket position; Control of sequence of drive operations for bucket-arms, front-end loaders, dumpers or the like
    • E02F3/432—Control of dipper or bucket position; Control of sequence of drive operations for bucket-arms, front-end loaders, dumpers or the like for keeping the bucket in a predetermined position or attitude
    • 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
    • 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
    • E02F9/2232—Control of flow rate; Load sensing arrangements using one or more variable displacement 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
    • E02F9/2285—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
    • E02F9/2296—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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/20—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors controlling several interacting or sequentially-operating members
    • 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
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
    • F15B2211/50545—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using braking valves to maintain a back pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Operation Control Of Excavators (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Forklifts And Lifting Vehicles (AREA)
DE50307494T 2002-12-18 2003-12-08 Steuereinrichtung für ein arbeitsgerät mit einer ausleger gehaltenen schaufel Expired - Lifetime DE50307494D1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10259120 2002-12-18
DE10334321A DE10334321A1 (de) 2002-12-18 2003-07-28 Steuereinrichtung für ein Arbeitsgerät mit einer an einem Ausleger gehaltenen Schaufel
PCT/EP2003/013898 WO2004055274A1 (de) 2002-12-18 2003-12-08 Steuereinrichtung für ein arbeitsgerät mit einer an einem ausleger gehaltenen schaufel

Publications (1)

Publication Number Publication Date
DE50307494D1 true DE50307494D1 (de) 2007-07-26

Family

ID=32598078

Family Applications (1)

Application Number Title Priority Date Filing Date
DE50307494T Expired - Lifetime DE50307494D1 (de) 2002-12-18 2003-12-08 Steuereinrichtung für ein arbeitsgerät mit einer ausleger gehaltenen schaufel

Country Status (6)

Country Link
US (1) US7607381B2 (de)
EP (1) EP1576241B1 (de)
JP (1) JP4488232B2 (de)
AT (1) ATE364757T1 (de)
DE (1) DE50307494D1 (de)
WO (1) WO2004055274A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007028864A1 (de) * 2007-03-27 2008-10-02 Robert Bosch Gmbh Hydraulische Steueranordnung
DE102008018936A1 (de) * 2008-04-15 2009-10-22 Robert Bosch Gmbh Steueranordnung zur Ansteuerung eines Wegeventils
JP5496135B2 (ja) * 2011-03-25 2014-05-21 日立建機株式会社 油圧作業機の油圧システム
JP6291532B2 (ja) * 2016-07-13 2018-03-14 本田技研工業株式会社 ロボットによる係合確認方法
KR20210126722A (ko) 2019-02-22 2021-10-20 클라크 이큅먼트 컴파니 동력기계용 유압 레벨링 회로

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3179120A (en) * 1963-05-24 1965-04-20 Koehring Co Proportional flow divider
US4683802A (en) * 1984-03-15 1987-08-04 Lull Engineering Company, Inc. Divided flow self-leveling system
US4709618A (en) * 1985-10-02 1987-12-01 The Cessna Aircraft Company Series self-leveling valve with single spool for unloading and relief
US5447094A (en) * 1994-02-07 1995-09-05 Delta Power Hydraulic Co. Hydraulic system for bucket self-leveling during raising and lowering of boom
KR950001445A (ko) * 1993-06-30 1995-01-03 경주현 굴삭기의 스윙, 붐의 속도비 유지방법
JPH10141310A (ja) * 1996-11-13 1998-05-26 Komatsu Ltd 圧油供給装置
US5797310A (en) * 1997-01-29 1998-08-25 Eaton Corporation Dual self level valve
US6389953B1 (en) * 1998-09-24 2002-05-21 Delta Power Company Hydraulic leveling control system for a loader type vehicle
US6308612B1 (en) * 1998-09-24 2001-10-30 Delta Power Company Hydraulic leveling control system for a loader type vehicle
JP3986218B2 (ja) * 1999-09-21 2007-10-03 株式会社小松製作所 油圧駆動機械のアクチュエータ制御装置およびバケット姿勢制御装置

Also Published As

Publication number Publication date
EP1576241A1 (de) 2005-09-21
JP4488232B2 (ja) 2010-06-23
EP1576241B1 (de) 2007-06-13
US7607381B2 (en) 2009-10-27
ATE364757T1 (de) 2007-07-15
JP2006511744A (ja) 2006-04-06
US20070169620A1 (en) 2007-07-26
WO2004055274A1 (de) 2004-07-01

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Legal Events

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