KR100601458B1 - 굴삭기의 붐-암 복합동작 유압제어장치 - Google Patents
굴삭기의 붐-암 복합동작 유압제어장치 Download PDFInfo
- Publication number
- KR100601458B1 KR100601458B1 KR1020040107405A KR20040107405A KR100601458B1 KR 100601458 B1 KR100601458 B1 KR 100601458B1 KR 1020040107405 A KR1020040107405 A KR 1020040107405A KR 20040107405 A KR20040107405 A KR 20040107405A KR 100601458 B1 KR100601458 B1 KR 100601458B1
- Authority
- KR
- South Korea
- Prior art keywords
- boom
- arm
- hydraulic pump
- hydraulic
- speed control
- Prior art date
Links
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Classifications
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- 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
-
- 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
Abstract
Description
Claims (2)
- 제1유압펌프(P1) 및 제2유압펌프(P2)와,상기 제1유압펌프(P1)측에 제1바이패스라인(9)을 따라 상류측으로부터 순차적으로 배치되어 각 병렬라인(11,13)을 통하여 상기 제1유압펌프(P1)에 병렬연결된 붐2속제어스풀(5b) 및 암1속제어스풀(7a)과,상기 제2유압펌프(P2)측에 제2바이패스라인(10)을 따라 상류측으로부터 순차적으로 배치되어 각각의 병렬라인(15,17)을 통하여 상기 제2유압펌프(P2)에 병렬연결된 붐1속제어스풀(5a) 및 암2속제어스풀(7b)과,파이롯밸브(20)의 붐제어신호에 의해 상기 암2속제어스풀(7b)과 제2유압펌프(P2)를 연결하는 병렬라인(17)을 교축하여 상기 제2유압펌프(P2)의 유량을 암2속제어스풀(7b)측보다 붐1속제어스풀(5a)측으로 우선공급하는 붐우선밸브(25)를 구비한 굴삭기의 붐-암 복합동작 유압제어장치에 있어서,상기 붐우선밸브(25)는 일측 수압부(25a)에 파이롯밸브(20)의 붐제어라인(21)에서 분기된 붐우선제어신호라인(27)이 연결되고, 상기 붐우선제어신호라인(27)을 통하여 제공되는 붐우선제어신호압력에 비례하여 일정한 비율로 개구면적을 감소시키는 가변오리피스구간(X)과, 상기 오리피스구간(X)의 끝단에 연속하여 형성되며 상기 붐우선제어신호압력이 일정압력 이상일 경우 상기 개구면적을 일정하게 유지하는 브리드오프구간(Y)을 포함한 것을 특징으로 하는 굴삭기의 붐-암 복합동작 유압제어장치.
- 제1항에 있어서, 상기 붐우선제어신호라인(27)에는 선택스위치(29)의 작동에 의해 붐우선제어신호라인(27)을 개폐하는 선택밸브(30)가 연결된 것을 특징으로 하는 굴삭기의 복합동작 유압제어장치.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040107405A KR100601458B1 (ko) | 2004-12-16 | 2004-12-16 | 굴삭기의 붐-암 복합동작 유압제어장치 |
EP05292639A EP1672127B1 (en) | 2004-12-16 | 2005-12-12 | Excavator with a hydraulic control device for controlling a boom-dipperstick combined operation |
US11/302,704 US7207175B2 (en) | 2004-12-16 | 2005-12-13 | Hydraulic control device for controlling a boom-arm combined operation in an excavator |
CN2005101320332A CN1789572B (zh) | 2004-12-16 | 2005-12-16 | 挖掘机上控制吊杆和臂联动操作的液压控制装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040107405A KR100601458B1 (ko) | 2004-12-16 | 2004-12-16 | 굴삭기의 붐-암 복합동작 유압제어장치 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20060068668A KR20060068668A (ko) | 2006-06-21 |
KR100601458B1 true KR100601458B1 (ko) | 2006-07-18 |
Family
ID=36096096
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020040107405A KR100601458B1 (ko) | 2004-12-16 | 2004-12-16 | 굴삭기의 붐-암 복합동작 유압제어장치 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7207175B2 (ko) |
EP (1) | EP1672127B1 (ko) |
KR (1) | KR100601458B1 (ko) |
CN (1) | CN1789572B (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102045075B1 (ko) | 2018-09-27 | 2019-11-14 | 썬 하이드로릭스 코리아 주식회사 | 건설기계의 메인 컨트롤 밸브용 전자제어 밸브블록 |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5079827B2 (ja) * | 2010-02-10 | 2012-11-21 | 日立建機株式会社 | 油圧ショベルの油圧駆動装置 |
JP5395268B2 (ja) * | 2010-06-22 | 2014-01-22 | 日立建機株式会社 | 作業車両の油圧制御装置 |
WO2013082331A1 (en) * | 2011-11-29 | 2013-06-06 | Vanguard Equipment, Inc. | Auxiliary flow valve system and method for managing load flow requirements for auxiliary functions on a tractor hydraulic system |
EP2889493B1 (en) * | 2012-08-27 | 2019-01-02 | Volvo Construction Equipment AB | Hydraulic system for construction machinery |
DE102012222060A1 (de) * | 2012-12-03 | 2014-06-18 | Robert Bosch Gmbh | Ventilblock |
WO2014123300A1 (ko) | 2013-02-05 | 2014-08-14 | 현대중공업 주식회사 | 건설장비 |
JP6006666B2 (ja) * | 2013-03-28 | 2016-10-12 | 株式会社神戸製鋼所 | 油圧ショベル |
JP5973979B2 (ja) * | 2013-11-21 | 2016-08-23 | 日立建機株式会社 | 作業機械の駆動装置 |
JP6495857B2 (ja) * | 2016-03-31 | 2019-04-03 | 日立建機株式会社 | 建設機械 |
KR102571079B1 (ko) * | 2016-09-06 | 2023-09-06 | 에이치디현대인프라코어 주식회사 | 굴삭기의 메인 컨트롤 밸브 제어 방법 및 이를 수행하기 위한 장치 |
JP6634363B2 (ja) * | 2016-11-16 | 2020-01-22 | 日立建機株式会社 | 作業機械 |
WO2019187519A1 (ja) * | 2018-03-30 | 2019-10-03 | 住友建機株式会社 | ショベル、情報処理装置 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60148366U (ja) * | 1984-03-12 | 1985-10-02 | 株式会社小松製作所 | パワ−シヨベルの作業機油圧回路 |
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 |
JP2892939B2 (ja) * | 1994-06-28 | 1999-05-17 | 日立建機株式会社 | 油圧掘削機の油圧回路装置 |
JP3236491B2 (ja) * | 1994-12-26 | 2001-12-10 | 日立建機株式会社 | 建設機械の油圧システム |
JP3183815B2 (ja) * | 1995-12-27 | 2001-07-09 | 日立建機株式会社 | 油圧ショベルの油圧回路 |
JP2000096629A (ja) | 1998-09-21 | 2000-04-04 | Hitachi Constr Mach Co Ltd | 油圧ショベルの油圧制御システム |
-
2004
- 2004-12-16 KR KR1020040107405A patent/KR100601458B1/ko active IP Right Grant
-
2005
- 2005-12-12 EP EP05292639A patent/EP1672127B1/en not_active Expired - Fee Related
- 2005-12-13 US US11/302,704 patent/US7207175B2/en active Active
- 2005-12-16 CN CN2005101320332A patent/CN1789572B/zh not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102045075B1 (ko) | 2018-09-27 | 2019-11-14 | 썬 하이드로릭스 코리아 주식회사 | 건설기계의 메인 컨트롤 밸브용 전자제어 밸브블록 |
Also Published As
Publication number | Publication date |
---|---|
EP1672127A3 (en) | 2012-02-29 |
US20060156714A1 (en) | 2006-07-20 |
EP1672127A2 (en) | 2006-06-21 |
CN1789572A (zh) | 2006-06-21 |
US7207175B2 (en) | 2007-04-24 |
CN1789572B (zh) | 2010-07-07 |
EP1672127B1 (en) | 2013-03-06 |
KR20060068668A (ko) | 2006-06-21 |
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