EP2937474A3 - Système hydraulique pour équipement de construction - Google Patents
Système hydraulique pour équipement de construction Download PDFInfo
- 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
Links
- 238000010276 construction Methods 0.000 title abstract 4
- 239000010720 hydraulic oil Substances 0.000 abstract 3
- 230000002542 deteriorative effect Effects 0.000 abstract 1
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
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)
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)
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 |
WO2020013358A1 (fr) * | 2018-07-12 | 2020-01-16 | Volvo Construction Equipment Ab | Machine hydraulique |
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)
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)
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 |
-
2014
- 2014-04-21 KR KR1020140047451A patent/KR102156447B1/ko active IP Right Grant
-
2015
- 2015-04-21 EP EP15164484.6A patent/EP2937474B1/fr active Active
- 2015-04-21 CN CN201510190974.5A patent/CN105003475B/zh active Active
Patent Citations (3)
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 |
---|---|
KR20150121506A (ko) | 2015-10-29 |
CN105003475B (zh) | 2016-12-07 |
KR102156447B1 (ko) | 2020-09-15 |
EP2937474B1 (fr) | 2022-04-20 |
EP2937474A2 (fr) | 2015-10-28 |
CN105003475A (zh) | 2015-10-28 |
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