KR100998606B1 - 건설장비용 유압펌프의 토출유량 제어시스템 - Google Patents
건설장비용 유압펌프의 토출유량 제어시스템 Download PDFInfo
- Publication number
- KR100998606B1 KR100998606B1 KR1020080079216A KR20080079216A KR100998606B1 KR 100998606 B1 KR100998606 B1 KR 100998606B1 KR 1020080079216 A KR1020080079216 A KR 1020080079216A KR 20080079216 A KR20080079216 A KR 20080079216A KR 100998606 B1 KR100998606 B1 KR 100998606B1
- Authority
- KR
- South Korea
- Prior art keywords
- hydraulic pump
- discharge flow
- main hydraulic
- flow rate
- swing
- Prior art date
Links
Images
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
- E02F9/08—Superstructures; Supports for superstructures
- E02F9/10—Supports for movable superstructures mounted on travelling or walking gears or on other superstructures
- E02F9/12—Slewing or traversing gears
- E02F9/121—Turntables, i.e. structure rotatable about 360°
- E02F9/123—Drives or control devices specially adapted therefor
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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
- E02F9/2221—Control of flow rate; Load sensing arrangements
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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
- E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
- E02F9/2267—Valves or distributors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/40—Special vehicles
- B60Y2200/41—Construction vehicles, e.g. graders, excavators
- B60Y2200/412—Excavators
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- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Operation Control Of Excavators (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
Description
Claims (2)
- 엔진에 연결되는 메인 유압펌프(11) 및 파일럿 펌프(12);상기 메인 유압펌프(11)에 연결되어 구동되는 선회모터;상기 메인 유압펌프(11)의 토출유로(13)에 설치되고, 절환시 상기 선회모터의 기동, 정지 및 방향전환을 제어하는 제어스풀(14);상기 선회모터를 구동시키도록 상기 제어스풀(14)에 제어신호를 공급하는 리모트컨트롤밸브(15);상기 리모트컨트롤밸브(15)와 제어스풀(14)에 연결되는 파일럿신호라인(16,17)에 병렬연결되는 셔틀밸브(20)와, 셔틀밸브(20)에서 검출된 선회 조작신호에 따른 전기적 신호를 출력하는 압력스위치(21)로서 이루어지고, 상기 리모트컨트롤밸브(15)로부터 출력되는 선회 조작신호를 검출하여 검출신호를 출력하는 선회 조작신호 검출수단;상기 메인 유압펌프(11)의 사판 경전각을 제어하여 메인 유압펌프(11)의 토출 유량을 제어하는 레귤레이터(18); 및상기 선회 조작신호 검출수단으로부터 입력되는 전기적 신호에 따라 상기 메인 유압펌프(11)의 토출 유량을 감소시키도록 상기 레귤레이터(18)에 제어신호를 출력하는 제어부(19)를 포함하는 것을 특징으로 하는 건설장비용 유압펌프의 토출 유량 제어시스템.
- 삭제
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020080079216A KR100998606B1 (ko) | 2008-08-13 | 2008-08-13 | 건설장비용 유압펌프의 토출유량 제어시스템 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020080079216A KR100998606B1 (ko) | 2008-08-13 | 2008-08-13 | 건설장비용 유압펌프의 토출유량 제어시스템 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20100020568A KR20100020568A (ko) | 2010-02-23 |
KR100998606B1 true KR100998606B1 (ko) | 2010-12-07 |
Family
ID=42090537
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020080079216A KR100998606B1 (ko) | 2008-08-13 | 2008-08-13 | 건설장비용 유압펌프의 토출유량 제어시스템 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100998606B1 (ko) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150219127A1 (en) * | 2012-08-27 | 2015-08-06 | Volvo Construction Equipment Ab | Hydraulic system for construction machinery |
KR102128630B1 (ko) * | 2014-03-24 | 2020-06-30 | 두산인프라코어 주식회사 | 유압시스템에서 스윙 모터의 제어방법 및 유압시스템 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005016228A (ja) * | 2003-06-27 | 2005-01-20 | Kobelco Contstruction Machinery Ltd | 旋回油圧回路 |
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2008
- 2008-08-13 KR KR1020080079216A patent/KR100998606B1/ko active IP Right Grant
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005016228A (ja) * | 2003-06-27 | 2005-01-20 | Kobelco Contstruction Machinery Ltd | 旋回油圧回路 |
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Publication number | Publication date |
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KR20100020568A (ko) | 2010-02-23 |
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