KR100863993B1 - 붐 스윙 장비의 실린더 크립 방지장치 - Google Patents
붐 스윙 장비의 실린더 크립 방지장치 Download PDFInfo
- Publication number
- KR100863993B1 KR100863993B1 KR1020060120177A KR20060120177A KR100863993B1 KR 100863993 B1 KR100863993 B1 KR 100863993B1 KR 1020060120177 A KR1020060120177 A KR 1020060120177A KR 20060120177 A KR20060120177 A KR 20060120177A KR 100863993 B1 KR100863993 B1 KR 100863993B1
- Authority
- KR
- South Korea
- Prior art keywords
- boom swing
- boom
- cylinder
- pump
- spool
- Prior art date
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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
- E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
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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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/027—Check valves
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
Description
Claims (1)
- 펌프와;붐 스윙 실린더와;중립 위치와, 상기 펌프와 연통되어 상기 붐 스윙 실린더를 일방향으로 스윙시키는 제 1 위치와, 상기 펌프와 연통되어 상기 붐 스윙 실린더를 다른 방향으로 스윙시키는 제 2 위치 사이에서 절환되는 붐 스윙 스풀과;상기 붐 스윙 실린더와 상기 붐 스윙 스풀 사이에 개재된 2개의 오버로드 릴리프 밸브를 포함하여 구성되는 더블체크 밸브와;상기 붐 스윙 스풀이 중립 위치인 경우에 상기 붐 스윙 스풀과 상기 펌프를 연통하고, 상기 더블체크 밸브의 중앙 유로와 상기 펌프를 연통하는 드레인 라인을 포함하여 구성된 붐 스윙 장비의 실린더 크립 방지장치.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020060120177A KR100863993B1 (ko) | 2006-11-30 | 2006-11-30 | 붐 스윙 장비의 실린더 크립 방지장치 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020060120177A KR100863993B1 (ko) | 2006-11-30 | 2006-11-30 | 붐 스윙 장비의 실린더 크립 방지장치 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20080049522A KR20080049522A (ko) | 2008-06-04 |
KR100863993B1 true KR100863993B1 (ko) | 2008-10-16 |
Family
ID=39805291
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020060120177A KR100863993B1 (ko) | 2006-11-30 | 2006-11-30 | 붐 스윙 장비의 실린더 크립 방지장치 |
Country Status (1)
Country | Link |
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KR (1) | KR100863993B1 (ko) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112664499B (zh) * | 2020-12-18 | 2023-01-31 | 山东泰丰智能控制股份有限公司 | 一种液压泄压设备及方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09203069A (ja) * | 1996-01-25 | 1997-08-05 | Hitachi Constr Mach Co Ltd | ブームスイング式油圧ショベル |
KR20000007843U (ko) * | 1998-10-10 | 2000-05-06 | 추호석 | 인터로크밸브를 구비한 1단 붐 실린더 |
KR20050061069A (ko) * | 2003-12-18 | 2005-06-22 | 두산인프라코어 주식회사 | 굴삭기의 붐홀딩 제어장치 |
KR20050061653A (ko) * | 2003-12-18 | 2005-06-23 | 두산인프라코어 주식회사 | 굴삭기의 붐홀딩 제어장치 |
-
2006
- 2006-11-30 KR KR1020060120177A patent/KR100863993B1/ko active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09203069A (ja) * | 1996-01-25 | 1997-08-05 | Hitachi Constr Mach Co Ltd | ブームスイング式油圧ショベル |
KR20000007843U (ko) * | 1998-10-10 | 2000-05-06 | 추호석 | 인터로크밸브를 구비한 1단 붐 실린더 |
KR20050061069A (ko) * | 2003-12-18 | 2005-06-22 | 두산인프라코어 주식회사 | 굴삭기의 붐홀딩 제어장치 |
KR20050061653A (ko) * | 2003-12-18 | 2005-06-23 | 두산인프라코어 주식회사 | 굴삭기의 붐홀딩 제어장치 |
Also Published As
Publication number | Publication date |
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KR20080049522A (ko) | 2008-06-04 |
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