WO2012144665A1 - 건설기계의 붐 제어용 유압회로 - Google Patents
건설기계의 붐 제어용 유압회로 Download PDFInfo
- Publication number
- WO2012144665A1 WO2012144665A1 PCT/KR2011/002777 KR2011002777W WO2012144665A1 WO 2012144665 A1 WO2012144665 A1 WO 2012144665A1 KR 2011002777 W KR2011002777 W KR 2011002777W WO 2012144665 A1 WO2012144665 A1 WO 2012144665A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- boom
- valve
- hydraulic
- control valve
- passage
- Prior art date
Links
Images
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
- F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
- F15B11/028—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
-
- 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
- E02F9/2217—Hydraulic or pneumatic drives with energy recovery arrangements, e.g. using accumulators, flywheels
-
- 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
- E02F9/226—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
- E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
- E02F9/2271—Actuators and supports therefor and protection therefor
-
- 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
-
- 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
-
- 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
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
- F15B20/007—Overload
-
- 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
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/30505—Non-return valves, i.e. check valves
- F15B2211/30515—Load holding valves
-
- 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
- F15B2211/30—Directional control
- F15B2211/31—Directional control characterised by the positions of the valve element
- F15B2211/3105—Neutral or centre positions
- F15B2211/3116—Neutral or centre positions the pump port being open in the centre position, e.g. so-called open centre
-
- 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
- F15B2211/30—Directional control
- F15B2211/355—Pilot pressure control
-
- 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
- F15B2211/40—Flow control
- F15B2211/405—Flow control characterised by the type of flow control means or valve
- F15B2211/40515—Flow control characterised by the type of flow control means or valve with variable throttles or orifices
-
- 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
- F15B2211/40—Flow control
- F15B2211/415—Flow control characterised by the connections of the flow control means in the circuit
- F15B2211/41581—Flow control characterised by the connections of the flow control means in the circuit being connected to an output member and a return line
-
- 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
- F15B2211/50536—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using unloading valves controlling the supply pressure by diverting fluid to the return line
-
- 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
- F15B2211/515—Pressure control characterised by the connections of the pressure control means in the circuit
- F15B2211/5159—Pressure control characterised by the connections of the pressure control means in the circuit being connected to an output member and a return line
-
- 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
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
- F15B2211/7114—Multiple output members, e.g. multiple hydraulic motors or cylinders with direct connection between the chambers of different actuators
- F15B2211/7128—Multiple output members, e.g. multiple hydraulic motors or cylinders with direct connection between the chambers of different actuators the chambers being connected in parallel
Abstract
Description
Claims (2)
- 건설기계의 붐 제어용 유압회로에 있어서:엔진에 연결되는 유압펌프와,상기 유압펌프에 제1통로 및 제2통로를 통해 연결되는 붐실린더와,상기 유압펌프와 붐실린더사이의 유로에 절환가능하게 설치되며, 절환시 붐실린더의 기동, 정지 및 방향전환을 제어하는 붐 제어밸브와,상기 붐 제어밸브와 붐실린더의 제1통로사이에 설치되는 홀딩포펫과, 홀딩포펫의 배압실에 작동유를 공급하거나, 배출하는 드레인밸브로 이뤄지며, 붐 제어밸브의 중립시 붐 자연하강을 방지하는 홀딩밸브와,상기 홀딩포펫의 하류측으로 제1통로에 설치되며, 제1통로에 과부하 발생시 작동유를 릴리프시키는 포트 릴리프밸브와,상기 포트 릴리프밸브의 하류측에 설치되며, 붐 제어밸브의 중립시 포트 릴리프밸브를 통과하는 작동유는 오리피스를 통과시켜 릴리프시키고, 붐 제어밸브에 인가되는 붐 업 파일럿 신호압에 의해 절환시 포트 릴리프밸브를 통과하는 작동유를 유압탱크로 배출시키는 오리피스 밸브를 포함하는 것을 특징으로 하는 건설기계의 붐 제어용 유압회로.
- 제1항에 있어서, 상기 오리피스 밸브는 작업장치 조작용 리모트컨트롤밸브의 레버 조작으로 인해 생성되는 붐 업 파일럿 신호압에 의해 절환되는 것을 특징으로 하는 건설기계의 붐 제어용 유압회로.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/KR2011/002777 WO2012144665A1 (ko) | 2011-04-19 | 2011-04-19 | 건설기계의 붐 제어용 유압회로 |
EP11864021.8A EP2700827A4 (en) | 2011-04-19 | 2011-04-19 | HYDRAULIC CIRCUIT FOR CONTROLLING THE EXTRACTS OF A CONSTRUCTION MACHINE |
US14/006,116 US9482214B2 (en) | 2011-04-19 | 2011-04-19 | Hydraulic circuit for controlling booms of construction equipment |
JP2014506311A JP5832634B2 (ja) | 2011-04-19 | 2011-04-19 | 建設機械のブーム制御用油圧回路 |
CN201180069124.XA CN103459858B (zh) | 2011-04-19 | 2011-04-19 | 用于控制施工设备动臂的液压回路 |
KR1020137025495A KR20140010414A (ko) | 2011-04-19 | 2011-04-19 | 건설기계의 붐 제어용 유압회로 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/KR2011/002777 WO2012144665A1 (ko) | 2011-04-19 | 2011-04-19 | 건설기계의 붐 제어용 유압회로 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012144665A1 true WO2012144665A1 (ko) | 2012-10-26 |
Family
ID=47041750
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2011/002777 WO2012144665A1 (ko) | 2011-04-19 | 2011-04-19 | 건설기계의 붐 제어용 유압회로 |
Country Status (6)
Country | Link |
---|---|
US (1) | US9482214B2 (ko) |
EP (1) | EP2700827A4 (ko) |
JP (1) | JP5832634B2 (ko) |
KR (1) | KR20140010414A (ko) |
CN (1) | CN103459858B (ko) |
WO (1) | WO2012144665A1 (ko) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104919116B (zh) | 2013-01-18 | 2017-12-19 | 沃尔沃建造设备有限公司 | 用于工程机械的控流装置和控流方法 |
WO2014129676A1 (ko) | 2013-02-19 | 2014-08-28 | 볼보 컨스트럭션 이큅먼트 에이비 | 보호장치가 구비된 건설기계용 유압시스템 |
WO2014208795A1 (ko) | 2013-06-28 | 2014-12-31 | 볼보 컨스트럭션 이큅먼트 에이비 | 플로팅기능을 갖는 건설기계용 유압회로 및 플로팅기능 제어방법 |
WO2016093378A1 (ko) * | 2014-12-08 | 2016-06-16 | 볼보 컨스트럭션 이큅먼트 에이비 | 건설기계용 유량 제어장치 |
KR102638727B1 (ko) * | 2018-03-22 | 2024-02-19 | 스미도모쥬기가이고교 가부시키가이샤 | 쇼벨 |
DE102020212201B4 (de) * | 2020-09-28 | 2022-12-01 | Hawe Hydraulik Se | Separates hydraulisches Dämpfungsmodul und Lasthalteventil mit separatem hydraulischen Dämpfungsmodul |
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JP2003106304A (ja) * | 2001-09-28 | 2003-04-09 | Kobelco Contstruction Machinery Ltd | 液圧シリンダ回路 |
KR20040102597A (ko) * | 2003-05-28 | 2004-12-08 | 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 | 부하홀딩용 유압밸브의 제어장치 |
KR100611718B1 (ko) * | 2005-06-17 | 2006-08-11 | 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 | 홀딩밸브를 갖는 압력보상형 유압회로 |
JP2011002092A (ja) * | 2009-06-16 | 2011-01-06 | Volvo Construction Equipment Ab | フロート機能を有する建設機械用油圧システム |
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JP2543587Y2 (ja) * | 1990-11-13 | 1997-08-06 | 住友建機株式会社 | シリンダの揺戻し防止回路 |
DE19510071A1 (de) * | 1995-03-20 | 1996-09-26 | Klaus Brugger | Vorrichtung zum Treiben eines Kolbens |
JP3478931B2 (ja) * | 1996-09-20 | 2003-12-15 | 新キャタピラー三菱株式会社 | 油圧回路 |
US6955115B1 (en) * | 1999-03-17 | 2005-10-18 | Caterpillar Inc. | Hydraulic circuit having pressure equalization during regeneration |
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KR100631067B1 (ko) * | 2004-05-04 | 2006-10-02 | 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 | 홀딩밸브의 응답성이 개선된 유압제어밸브 |
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2011
- 2011-04-19 WO PCT/KR2011/002777 patent/WO2012144665A1/ko active Application Filing
- 2011-04-19 CN CN201180069124.XA patent/CN103459858B/zh not_active Expired - Fee Related
- 2011-04-19 JP JP2014506311A patent/JP5832634B2/ja not_active Expired - Fee Related
- 2011-04-19 EP EP11864021.8A patent/EP2700827A4/en not_active Withdrawn
- 2011-04-19 KR KR1020137025495A patent/KR20140010414A/ko not_active Application Discontinuation
- 2011-04-19 US US14/006,116 patent/US9482214B2/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003106304A (ja) * | 2001-09-28 | 2003-04-09 | Kobelco Contstruction Machinery Ltd | 液圧シリンダ回路 |
KR20040102597A (ko) * | 2003-05-28 | 2004-12-08 | 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 | 부하홀딩용 유압밸브의 제어장치 |
KR100611718B1 (ko) * | 2005-06-17 | 2006-08-11 | 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 | 홀딩밸브를 갖는 압력보상형 유압회로 |
JP2011002092A (ja) * | 2009-06-16 | 2011-01-06 | Volvo Construction Equipment Ab | フロート機能を有する建設機械用油圧システム |
Non-Patent Citations (1)
Title |
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See also references of EP2700827A4 * |
Also Published As
Publication number | Publication date |
---|---|
KR20140010414A (ko) | 2014-01-24 |
CN103459858B (zh) | 2015-07-15 |
US20140010688A1 (en) | 2014-01-09 |
CN103459858A (zh) | 2013-12-18 |
EP2700827A1 (en) | 2014-02-26 |
US9482214B2 (en) | 2016-11-01 |
EP2700827A4 (en) | 2015-03-11 |
JP5832634B2 (ja) | 2015-12-16 |
JP2014512497A (ja) | 2014-05-22 |
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