EP2937474A3 - Système hydraulique pour équipement de construction - Google Patents

Système hydraulique pour équipement de construction Download PDF

Info

Publication number
EP2937474A3
EP2937474A3 EP15164484.6A EP15164484A EP2937474A3 EP 2937474 A3 EP2937474 A3 EP 2937474A3 EP 15164484 A EP15164484 A EP 15164484A EP 2937474 A3 EP2937474 A3 EP 2937474A3
Authority
EP
European Patent Office
Prior art keywords
traveling
construction machinery
hydraulic system
present disclosure
main pump
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
EP15164484.6A
Other languages
German (de)
English (en)
Other versions
EP2937474B1 (fr
EP2937474A2 (fr
Inventor
Won Sun Sohn
Dong Youn Sohn
In Dong Kim
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.)
HD Hyundai Infracore Co Ltd
Original Assignee
Doosan Infracore 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 Doosan Infracore Co Ltd filed Critical Doosan Infracore Co Ltd
Publication of EP2937474A2 publication Critical patent/EP2937474A2/fr
Publication of EP2937474A3 publication Critical patent/EP2937474A3/fr
Application granted granted Critical
Publication of EP2937474B1 publication Critical patent/EP2937474B1/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
    • 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
    • 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
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • F15B11/04—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed
    • 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
    • E02F9/2253—Controlling the travelling speed of vehicles, e.g. adjusting travelling speed according to implement loads, control of hydrostatic transmission
    • 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
    • E02F9/226—Safety arrangements, e.g. hydraulic driven fans, preventing cavitation, leakage, overheating
    • 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
EP15164484.6A 2014-04-21 2015-04-21 Système hydraulique pour équipement de construction Active EP2937474B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020140047451A KR102156447B1 (ko) 2014-04-21 2014-04-21 건설기계의 유압시스템

Publications (3)

Publication Number Publication Date
EP2937474A2 EP2937474A2 (fr) 2015-10-28
EP2937474A3 true EP2937474A3 (fr) 2016-04-13
EP2937474B1 EP2937474B1 (fr) 2022-04-20

Family

ID=53015535

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15164484.6A Active EP2937474B1 (fr) 2014-04-21 2015-04-21 Système hydraulique pour équipement de construction

Country Status (3)

Country Link
EP (1) EP2937474B1 (fr)
KR (1) KR102156447B1 (fr)
CN (1) CN105003475B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102540110B1 (ko) * 2017-01-10 2023-06-05 에이치디현대인프라코어 주식회사 건설 기계의 유압 시스템
KR20180107350A (ko) * 2017-03-16 2018-10-02 한국로봇융합연구원 선택적 이중화 기능이 적용된 유압시스템
KR102461096B1 (ko) * 2017-07-20 2022-10-31 현대두산인프라코어 주식회사 건설기계의 주행 속도 제어 방법 및 장치
US11371537B2 (en) * 2018-07-12 2022-06-28 Volvo Construction Equipment Ab Hydraulic machine
CN215927944U (zh) * 2021-09-09 2022-03-01 湖南三一华源机械有限公司 液压控制系统及作业机械

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06306892A (ja) * 1993-04-23 1994-11-01 Yutani Heavy Ind Ltd 建設機械の走行制御装置
WO2013100457A1 (fr) * 2011-12-28 2013-07-04 두산인프라코어 주식회사 Système de réduction de consommation de carburant dans une excavatrice

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100797315B1 (ko) * 2001-07-16 2008-01-23 두산인프라코어 주식회사 굴삭기의 주행 및 프론트작업의 복합작업용 유압제어장치
JP2004027706A (ja) 2002-06-27 2004-01-29 Hitachi Constr Mach Co Ltd 建設機械の油圧回路装置
JP2009179983A (ja) * 2008-01-30 2009-08-13 Caterpillar Japan Ltd 作業機械の油圧制御回路
KR100974283B1 (ko) * 2008-08-08 2010-08-06 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 굴삭 및 파이프 레잉 작업을 위한 유량 분배 시스템
CN102011416B (zh) * 2010-11-03 2012-07-18 三一重机有限公司 一种液压挖掘机流量控制方法及控制回路
JP5480847B2 (ja) * 2011-06-21 2014-04-23 株式会社クボタ 作業機

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06306892A (ja) * 1993-04-23 1994-11-01 Yutani Heavy Ind Ltd 建設機械の走行制御装置
WO2013100457A1 (fr) * 2011-12-28 2013-07-04 두산인프라코어 주식회사 Système de réduction de consommation de carburant dans une excavatrice
US20140366517A1 (en) * 2011-12-28 2014-12-18 Doosan Infracore Co., Ltd. System for reducing fuel consumption in excavator

Also Published As

Publication number Publication date
CN105003475A (zh) 2015-10-28
EP2937474B1 (fr) 2022-04-20
CN105003475B (zh) 2016-12-07
EP2937474A2 (fr) 2015-10-28
KR20150121506A (ko) 2015-10-29
KR102156447B1 (ko) 2020-09-15

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