KR100296448B1 - 건설중장비의 압유분배장치_ - Google Patents
건설중장비의 압유분배장치_ Download PDFInfo
- Publication number
- KR100296448B1 KR100296448B1 KR1019980063080A KR19980063080A KR100296448B1 KR 100296448 B1 KR100296448 B1 KR 100296448B1 KR 1019980063080 A KR1019980063080 A KR 1019980063080A KR 19980063080 A KR19980063080 A KR 19980063080A KR 100296448 B1 KR100296448 B1 KR 100296448B1
- Authority
- KR
- South Korea
- Prior art keywords
- line
- valve
- pressure
- hydraulic
- joystick
- Prior art date
Links
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
- E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
- E02F9/2267—Valves or distributors
-
- 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
- E02F9/2225—Control of flow rate; Load sensing arrangements using pressure-compensating valves
-
- 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
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)
- Fluid-Pressure Circuits (AREA)
Abstract
Description
Claims (1)
- 유압펌프(1)에서 토출된 압유를 제1작동그룹(30)과 제2작동그룹으로 분배하여 사용하는 압유분배장치에 있어서,상기 유압펌프(1)에서 토출된 압유를 상기 제1작동그룹(30)과 상기 제2작동그룹(40)으로 분배하는 방향전환밸브(6); 및상기 방향전환밸브(6)와 제1작동그룹(30)을 연결하는 유로상에 병렬로 설치된 언로딩밸브(7)를 구비하고,상기 방향전환밸브(6)는 제1작동그룹(30)과 제2작동그룹(40)중 어느 한쪽으로 압유를 공급하는 유로를 선택적으로 제한할 수 있는 오리피스(5)를 구비한 스풀로 형성되며, 상기 스풀의 일측 수압실(16)에는 상기 유압펌프(1)의 압유가 작용하게 연결하고, 타측 수압실(18)에는 상기 언로딩밸브(7)를 경유한 압유가 작용하도록 연결한 것과,상기 언로딩밸브(7)는 상기 방향전환밸브(6)와 제1작동그룹(30) 사이의 압유압력이 소정압력 이하인 상태에서는 상기 방향전환밸브(6)의 일측 수압실(18)로 압유를 공급하고, 상기 압유의 압력이 소정압력이 이상일 때에는 상기 수압실(18)로 연결된 유로를 드레인 탱크로 연통시키는 스풀을 구비한 것을 특징으로 하는 건설중장비의 압유분배장치.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019980063080A KR100296448B1 (ko) | 1998-12-31 | 1998-12-31 | 건설중장비의 압유분배장치_ |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019980063080A KR100296448B1 (ko) | 1998-12-31 | 1998-12-31 | 건설중장비의 압유분배장치_ |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20000046400A KR20000046400A (ko) | 2000-07-25 |
KR100296448B1 true KR100296448B1 (ko) | 2001-08-07 |
Family
ID=19569692
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019980063080A KR100296448B1 (ko) | 1998-12-31 | 1998-12-31 | 건설중장비의 압유분배장치_ |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100296448B1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108533537A (zh) * | 2018-05-11 | 2018-09-14 | 郑州宇通重工有限公司 | 一种全液压制动充液阀组及其控制系统 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100826276B1 (ko) * | 2008-02-15 | 2008-04-29 | 이텍산업 주식회사 | 제설기의 비상 동력공급장치 |
KR101464518B1 (ko) * | 2012-11-29 | 2014-11-24 | 한국기계연구원 | 굴삭기 주행모터의 파킹브레이크 해제장치 |
-
1998
- 1998-12-31 KR KR1019980063080A patent/KR100296448B1/ko not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108533537A (zh) * | 2018-05-11 | 2018-09-14 | 郑州宇通重工有限公司 | 一种全液压制动充液阀组及其控制系统 |
Also Published As
Publication number | Publication date |
---|---|
KR20000046400A (ko) | 2000-07-25 |
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