KR20050000821A - 중장비 옵션장치용 유압회로 - Google Patents
중장비 옵션장치용 유압회로 Download PDFInfo
- Publication number
- KR20050000821A KR20050000821A KR1020030041364A KR20030041364A KR20050000821A KR 20050000821 A KR20050000821 A KR 20050000821A KR 1020030041364 A KR1020030041364 A KR 1020030041364A KR 20030041364 A KR20030041364 A KR 20030041364A KR 20050000821 A KR20050000821 A KR 20050000821A
- Authority
- KR
- South Korea
- Prior art keywords
- option device
- spool
- option
- valve
- hydraulic
- Prior art date
Links
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 16
- 238000006073 displacement reaction Methods 0.000 claims description 23
- 239000003921 oil Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
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
-
- 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
- E02F9/2235—Control of flow rate; Load sensing arrangements using one or more variable displacement pumps including an electronic controller
-
- 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
- F15B11/161—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load
- F15B11/162—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load for giving priority to particular servomotors or users
-
- 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
-
- 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
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/2053—Type of pump
- F15B2211/20546—Type of pump variable capacity
- F15B2211/20553—Type of pump variable capacity with pilot circuit, e.g. for controlling a swash plate
-
- 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
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/255—Flow control functions
-
- 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
-
- 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
- F15B2211/40—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
- F15B2211/42—Flow control characterised by the type of actuation
- F15B2211/428—Flow control characterised by the type of actuation actuated by fluid pressure
-
- 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
- F15B2211/45—Control of bleed-off flow, e.g. control of bypass flow 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
- F15B2211/60—Circuit components or control therefor
- F15B2211/635—Circuits providing pilot pressure to pilot pressure-controlled fluid circuit elements
- F15B2211/6355—Circuits providing pilot pressure to pilot pressure-controlled fluid circuit elements having valve means
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid-Pressure Circuits (AREA)
- Operation Control Of Excavators (AREA)
Abstract
Description
Claims (5)
- 가변용량형 유압펌프 및 파일럿 펌프, 상기 유압펌프에 연결되어 구동하는 작업장치및 옵션장치, 상기 유압펌프와 작업장치 및 옵션장치사이의 유로에 설치되어 작동유의 흐름방향을 제어하는 메인 컨트롤밸브, 제어기로 부터 인가되는 전기신호에 상응하는 2차압을 출력하여 상기 유압펌프의 토출유량을 가변 제어하는 제1전자비례감압밸브, 메인 컨트롤밸브의 스플을 절환시키는 파일럿 신호압을 제어하는 리모트컨트롤밸브를 구비하는 중장비 옵션장치용 유압회로에 있어서:상기 옵션장치용 스플의 공급측 유로에 개폐가능하게 설치되는 포펫밸브;상기 포펫밸브와 상기 옵션장치용 스플사이의 유로에 설치되며, 상기 파일럿 신호압 공급으로 절환시 일정한 압력차를 유지하도록 개구부가 형성되는 제1스플; 및상기 포펫밸브 하류측에 설치되며, 상기 옵션장치에 설정된 압력이상의 과부하가 발생되는 경우 절환되어 상기 포펫밸브를 폐쇄시키는 제2스플을 구비하는 것을 특징으로 하는 중장비 옵션장치용 유압회로.
- 제1항에 있어서, 상기 파일럿 펌프와 상기 제1스플사이의 유로에 설치되며, 상기 제어기로 부터 인가되는 전기신호에 상응하는 2차압을 출력하여 상기 제1스플을 절환시키는 제2전자비례감압밸브를 구비하는 것을 특징으로 하는 중장비 옵션장치용 유압회로.
- 제1항 또는 제2항에 있어서, 상기 제1스플, 제2스플 및 포펫밸브중 적어도 어느 하나는 상기 메인 컨트롤밸브의 내부에 설치되는 것을 특징으로 하는 중장비 옵션장치용 유압회로.
- 제1항 또는 제2항에 있어서, 상기 제1스플, 제2스플 및 포펫밸브중 적어도 어느 하나는 상기 메인 컨트롤밸브 외측면에 설치되는 것을 특징으로 하는 중장비 옵션장치용 유압회로.
- 제1항에 있어서, 상기 옵션장치용 스플의 공급측 유로에 개폐가능하게 설치되며, 상기 옵션장치에 과부하 발생으로 상기 제2스플 절환시 절환되어 상기 옵션장치에 설정된 유량이상으로 공급되는 작동유를 차단하는 제3스플을 구비하는 것을 특징으로 하는 중장비 옵션장치용 유압회로.
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020030041364A KR100559291B1 (ko) | 2003-06-25 | 2003-06-25 | 중장비 옵션장치용 유압회로 |
JP2003376763A JP3768989B2 (ja) | 2003-06-25 | 2003-11-06 | 重装備オプション装置用油圧回路 |
US10/716,033 US6973866B2 (en) | 2003-06-25 | 2003-11-18 | Hydraulic circuit for option tool of heavy equipment |
GB0327189A GB2403273B (en) | 2003-06-25 | 2003-11-21 | A hydraulic circuit that operates an option tool for heavy equipment |
DE10356969A DE10356969B4 (de) | 2003-06-25 | 2003-12-05 | HYdraulikschaltung für ein optionales Werkzeug eines schweren Baugeräts |
IT002440A ITMI20032440A1 (it) | 2003-06-25 | 2003-12-12 | Circuito idraulico per un utensile sostituibile di |
CNB2003101206107A CN1304701C (zh) | 2003-06-25 | 2003-12-15 | 用于重型设备的选择工具的液压回路 |
FR0315581A FR2856751B1 (fr) | 2003-06-25 | 2003-12-30 | Circuit hydraulique pour un outil optionnel d'un equipement lourd |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020030041364A KR100559291B1 (ko) | 2003-06-25 | 2003-06-25 | 중장비 옵션장치용 유압회로 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20050000821A true KR20050000821A (ko) | 2005-01-06 |
KR100559291B1 KR100559291B1 (ko) | 2006-03-15 |
Family
ID=29775055
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020030041364A KR100559291B1 (ko) | 2003-06-25 | 2003-06-25 | 중장비 옵션장치용 유압회로 |
Country Status (8)
Country | Link |
---|---|
US (1) | US6973866B2 (ko) |
JP (1) | JP3768989B2 (ko) |
KR (1) | KR100559291B1 (ko) |
CN (1) | CN1304701C (ko) |
DE (1) | DE10356969B4 (ko) |
FR (1) | FR2856751B1 (ko) |
GB (1) | GB2403273B (ko) |
IT (1) | ITMI20032440A1 (ko) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100974273B1 (ko) * | 2007-09-14 | 2010-08-06 | 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 | 건설중장비용 유량 제어장치 |
WO2014081053A1 (ko) * | 2012-11-23 | 2014-05-30 | 볼보 컨스트럭션 이큅먼트 에이비 | 건설기계의 우선 기능 제어장치 및 그 제어방법 |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4705099B2 (ja) * | 2005-06-03 | 2011-06-22 | 株式会社小松製作所 | 作業機械 |
KR100631072B1 (ko) * | 2005-06-27 | 2006-10-02 | 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 | 중장비 옵션장치용 유압회로 |
KR100800081B1 (ko) * | 2006-08-29 | 2008-02-01 | 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 | 굴삭기용 옵션장치의 유압회로 |
EP2079113B1 (en) | 2008-01-09 | 2013-03-13 | Delphi Technologies Holding S.à.r.l. | Gas pressurised encapsulation for an actuator |
KR101112133B1 (ko) * | 2009-06-16 | 2012-02-22 | 볼보 컨스트럭션 이큅먼트 에이비 | 플로트 기능을 갖는 건설장비용 유압시스템 |
EP2564072B1 (en) * | 2010-04-30 | 2016-03-23 | Eaton Corporation | Multiple fluid pump combination circuit |
US9482214B2 (en) * | 2011-04-19 | 2016-11-01 | Volvo Construction Equipment Ab | Hydraulic circuit for controlling booms of construction equipment |
WO2013062156A1 (ko) * | 2011-10-27 | 2013-05-02 | 볼보 컨스트럭션 이큅먼트 에이비 | 액츄에이터 충격 감소시스템이 구비된 하이브리드 굴삭기 |
KR101657249B1 (ko) * | 2012-04-17 | 2016-09-13 | 볼보 컨스트럭션 이큅먼트 에이비 | 건설기계용 유압시스템 |
CN106638757A (zh) * | 2016-11-16 | 2017-05-10 | 江苏柳工机械有限公司 | 装载机辅助联流量操控阀 |
US11078932B2 (en) * | 2017-12-15 | 2021-08-03 | Volvo Construction Equipment Ab | Hydraulic machine |
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US3865013A (en) * | 1973-11-12 | 1975-02-11 | Worthington Cei | Auxiliary tool control circuit |
JPS6033905A (ja) | 1983-08-01 | 1985-02-21 | ジェイ・シーコンポジット株式会社 | コンクリ−ト若しくはアスフアルトコンクリ−ト層の表面仕上げ法 |
JPS60220893A (ja) | 1984-04-18 | 1985-11-05 | 株式会社日立製作所 | 原子炉用制御棒 |
JPH076530B2 (ja) * | 1986-09-27 | 1995-01-30 | 日立建機株式会社 | 油圧ショベルの油圧回路 |
CA1336203C (en) * | 1988-07-27 | 1995-07-04 | Joseph M. Mather | Electrically controlled auxiliary hydraulic system for a skid steer loader |
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US6745564B2 (en) * | 2001-12-21 | 2004-06-08 | Volvo Construction Equipment Holding Sweden Ab | Hydraulic variable control apparatus for heavy construction equipment |
-
2003
- 2003-06-25 KR KR1020030041364A patent/KR100559291B1/ko active IP Right Grant
- 2003-11-06 JP JP2003376763A patent/JP3768989B2/ja not_active Expired - Fee Related
- 2003-11-18 US US10/716,033 patent/US6973866B2/en not_active Expired - Lifetime
- 2003-11-21 GB GB0327189A patent/GB2403273B/en not_active Expired - Fee Related
- 2003-12-05 DE DE10356969A patent/DE10356969B4/de not_active Expired - Fee Related
- 2003-12-12 IT IT002440A patent/ITMI20032440A1/it unknown
- 2003-12-15 CN CNB2003101206107A patent/CN1304701C/zh not_active Expired - Fee Related
- 2003-12-30 FR FR0315581A patent/FR2856751B1/fr not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100974273B1 (ko) * | 2007-09-14 | 2010-08-06 | 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 | 건설중장비용 유량 제어장치 |
WO2014081053A1 (ko) * | 2012-11-23 | 2014-05-30 | 볼보 컨스트럭션 이큅먼트 에이비 | 건설기계의 우선 기능 제어장치 및 그 제어방법 |
US9784266B2 (en) | 2012-11-23 | 2017-10-10 | Volvo Construction Equipment Ab | Apparatus and method for controlling preferential function of construction machine |
Also Published As
Publication number | Publication date |
---|---|
CN1576471A (zh) | 2005-02-09 |
GB0327189D0 (en) | 2003-12-24 |
US20040261406A1 (en) | 2004-12-30 |
JP2005016708A (ja) | 2005-01-20 |
FR2856751A1 (fr) | 2004-12-31 |
DE10356969B4 (de) | 2005-12-22 |
JP3768989B2 (ja) | 2006-04-19 |
KR100559291B1 (ko) | 2006-03-15 |
CN1304701C (zh) | 2007-03-14 |
GB2403273A (en) | 2004-12-29 |
FR2856751B1 (fr) | 2006-06-30 |
US6973866B2 (en) | 2005-12-13 |
GB2403273B (en) | 2006-09-20 |
DE10356969A1 (de) | 2005-01-20 |
ITMI20032440A1 (it) | 2004-12-26 |
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