KR0133245B1 - 굴삭기 붐 · 암의 속도변환장치 - Google Patents
굴삭기 붐 · 암의 속도변환장치Info
- Publication number
- KR0133245B1 KR0133245B1 KR1019940018009A KR19940018009A KR0133245B1 KR 0133245 B1 KR0133245 B1 KR 0133245B1 KR 1019940018009 A KR1019940018009 A KR 1019940018009A KR 19940018009 A KR19940018009 A KR 19940018009A KR 0133245 B1 KR0133245 B1 KR 0133245B1
- Authority
- KR
- South Korea
- Prior art keywords
- valve
- speed
- boom
- control
- signal line
- Prior art date
Links
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 9
- 238000007599 discharging Methods 0.000 claims abstract description 5
- 238000010586 diagram Methods 0.000 description 3
- 241000237502 Ostreidae Species 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000020636 oyster Nutrition 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Landscapes
- Operation Control Of Excavators (AREA)
Abstract
Description
Claims (1)
- 작동유를 토출하는 2개의 유압펌프(1,2)와, 이 유압펌프(1,2)에서 토출된 유량을 제어하느 제어밸브블록(11)과, 이 제어밸브블록(11)내의 각 제어밸브와 연결되어 동작하는 복수개의 작동기(3,4,5,6,7,8)와, 이 작동기들을 제어하는 신호압을 발생시키는 조이스틱밸브(9,10)를 구비하고, 상기 제어밸브블록(11)회로에는 토출유량을 합류시켜주는 로크밸브(111) 및 로직밸브(112)를 갖고 2개의 중앙유로 하단에 각각 2속밸브(115,116)가 연결되어 있는 굴삭기의 유압장치에 있어서, 상기 조이스틱밸브(9)의 암크라우드 신호라인(90)과 2속밸브(115)의 외부신호라인(91) 사이에 상기 2속밸브(116)와 로직밸브(11) 입력측 압력신호(d,d')를 제어할 수 있는 솔레노이드밸브(14)를 설치하고, 상기 조이스틱밸브(10)의 붑상승신호라인(100)과 2속밸브(116)의 외부신호라인(101) 사이에 상기 2속밸브(115) 입력측 압력신호(C)를 제어할 수 있는 솔레노이드밸브(13)를 설치하여 상기 유압펌프(1,2)의 유량을 선택적으로 사용할 수 있도록 한 것을 특징으로 하는 굴삭기 붐·암의 속도변환장치.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019940018009A KR0133245B1 (ko) | 1994-07-25 | 1994-07-25 | 굴삭기 붐 · 암의 속도변환장치 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019940018009A KR0133245B1 (ko) | 1994-07-25 | 1994-07-25 | 굴삭기 붐 · 암의 속도변환장치 |
Publications (1)
Publication Number | Publication Date |
---|---|
KR0133245B1 true KR0133245B1 (ko) | 1998-04-18 |
Family
ID=19388768
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019940018009A KR0133245B1 (ko) | 1994-07-25 | 1994-07-25 | 굴삭기 붐 · 암의 속도변환장치 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR0133245B1 (ko) |
-
1994
- 1994-07-25 KR KR1019940018009A patent/KR0133245B1/ko not_active IP Right Cessation
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