KR960023541A - 유압 액츄에이터의 반전방지장치 - Google Patents

유압 액츄에이터의 반전방지장치 Download PDF

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Publication number
KR960023541A
KR960023541A KR1019950047541A KR19950047541A KR960023541A KR 960023541 A KR960023541 A KR 960023541A KR 1019950047541 A KR1019950047541 A KR 1019950047541A KR 19950047541 A KR19950047541 A KR 19950047541A KR 960023541 A KR960023541 A KR 960023541A
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KR
South Korea
Prior art keywords
port
pressure
hydraulic actuator
tank
high pressure
Prior art date
Application number
KR1019950047541A
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English (en)
Inventor
쥰 마루야마
슈우지 호리
케이 카와바타
Original Assignee
안자키 사토루
카부시키가이샤 코마쯔세이사쿠쇼
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by 안자키 사토루, 카부시키가이샤 코마쯔세이사쿠쇼 filed Critical 안자키 사토루
Publication of KR960023541A publication Critical patent/KR960023541A/ko

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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
    • E02F9/08—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°
    • E02F9/128—Braking systems
    • 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
    • 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
    • E02F9/2203—Arrangements for controlling the attitude of actuators, e.g. speed, floating function
    • E02F9/2207—Arrangements for controlling the attitude of actuators, e.g. speed, floating function for reducing or compensating oscillations
    • 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
    • E02F9/226—Safety arrangements, e.g. hydraulic driven fans, preventing cavitation, leakage, overheating
    • 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
    • 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
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • F15B11/04—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed
    • F15B11/044—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed by means in the return line, i.e. "meter out"
    • F15B11/0445—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed by means in the return line, i.e. "meter out" with counterbalance valves, e.g. to prevent overrunning or for braking
    • 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
    • F15B2211/20538—Type of pump constant capacity
    • 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
    • F15B2211/32—Directional control characterised by the type of actuation
    • F15B2211/321—Directional control characterised by the type of actuation mechanically
    • F15B2211/324—Directional control characterised by the type of actuation mechanically manually, e.g. by using a lever or pedal
    • 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
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
    • F15B2211/50518—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using pressure relief 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
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
    • F15B2211/50518—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using pressure relief valves
    • F15B2211/50527—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using pressure relief valves using cross-pressure relief 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
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7058—Rotary output members

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

유압모터정지시의 반전요동복귀 현상을 단시간에 종료시키는 것을 목적으로 하고, 유압모터(2)의 제1, 제2포트(3),(4)에 접속한 제1, 제2주회로(5),(6)에 제1, 제2밸브(20),(21)를 설치하고, 이 제1, 제2밸브(20),(21)예를 제1, 제2주회로(5),(6)의 압력이 다함께 설정압 이상으로 된 때에 제1, 제2주회로(5),(6)를 탱크(8)에 연통하도록 하여, 반전요동복귀현상시에 제1, 제2주회로(5),(6)내의 고압유를 단시간에 떨어뜨려 단시간에 반전요동복귀현상을 종료시킨다.

Description

유압 액츄에이터의 반전방지장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 제1실시예를 도시하는 유압회로도이다. 제2도는 본 발명의 제2실시예를 도시하는 유압회로도이다, 제3도는 본 발명의 제3실시예를 도시하는 유압회로도이다, 제4도는 본 발명의 제4실시예를 도시하는 유압회로도이다, 제5도는 본 발명의 제5실시예를 도시하는 유압회로도이다, 제6도는 본 발명의 제6실시예를 도시하는 유압회로도이다.

Claims (4)

  1. 관성체(1)를 구동하는 유압액츄에이터와, 이 유압액츄에이터의 제1포트(3), 제2포트(4)의 한 쪽에 압유를 공급하고, 다른 쪽을 탱크(8)에 연통하는 구동상태와, 제1, 제2포트(3),(4)를 차단하는 중립상태로 변환되는 수단과, 상기한 제1포트(3) 측의 압력과 제2포트(4)측의 압력이 설정고압 이상시에 그 고압유를 탱크(8)에 유출하는 안전밸브와, 상기한 제1포트(3)측, 제2포트(4)측에 기름을 흡입하는 흡입밸브와, 상기한 유압모터(2)의 제1포트(3)측의 압력과 제2포트(4)측의 압력이 각각 상기한 설정고압보다도 저압인 설정압 이상일 경우에 제1포트(3)측, 제2포트(4)측을 탱크(8)에 각각 연통하는 반전방지밸브(22)에 의해 구성되는 유압액츄에이터의 반전방지장치.
  2. 제1항에 있어서, 상기한 반전방지밸브(22)에 의하여 제1포트(3)측, 제2포트(4)측을 각각 탱크에 유통하는 부분에 조리개(39)를 설치한 유압액츄에이터의 반전방지장치.
  3. 제1항 또는 제2항에 있어서, 상기한 반전방지장치(22)가 작동할 때에 제1포트(3)측, 제2포트(4)측의 고압유가 탱크로 유출하지 않도록 하는 변환밸브(40)를 치한 유압액츄에이터의 반전방지장치.
  4. 제1항, 제2항, 또는 제3항에 있어서, 상기한 제1, 제2포오트(3),(4)에 접속한 제1, 제2주회로(5),(6)에 제1, 제2밸브(20),(21)를 설치하고, 이 제1, 제2밸브(20),(21)를 제1, 제2주회로(5),(6)의 압력이 다함께 상기한 설정고압보다 낮은 설정압 이상으로 된 때에 제1, 제2주회로(5),(6)를 탱크(8)에 연통하도록 하여 반전방지밸브(22)를 구성하는 유압 액츄에이터의 반전방지장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019950047541A 1994-12-08 1995-12-07 유압 액츄에이터의 반전방지장치 KR960023541A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP94-304947 1994-12-08
JP30494794 1994-12-08

Publications (1)

Publication Number Publication Date
KR960023541A true KR960023541A (ko) 1996-07-20

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ID=17939235

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KR1019950047541A KR960023541A (ko) 1994-12-08 1995-12-07 유압 액츄에이터의 반전방지장치

Country Status (5)

Country Link
US (1) US5862665A (ko)
EP (1) EP0791753A4 (ko)
KR (1) KR960023541A (ko)
CN (1) CN1173219A (ko)
WO (1) WO1996018041A1 (ko)

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DE10340504B4 (de) * 2003-09-03 2006-08-24 Sauer-Danfoss Aps Ventilanordnung zur Steuerung eines Hydraulikantriebs
FR2873175B1 (fr) * 2004-07-16 2006-10-20 Poclain Hydraulics Ind Soc Par Circuit hydraulique comprenant un selecteur multifonction
US20060168955A1 (en) * 2005-02-03 2006-08-03 Schlumberger Technology Corporation Apparatus for hydraulically energizing down hole mechanical systems
JP5872363B2 (ja) * 2012-03-30 2016-03-01 住友建機株式会社 旋回制御装置
CN103122894B (zh) * 2012-10-26 2015-04-15 中联重科股份有限公司 控制臂架回转的液压***及其控制方法和混凝土泵送设备
CN103244496B (zh) * 2013-05-13 2016-02-10 三一汽车起重机械有限公司 回转控制阀组、回转控制液压***和起重机
KR102128630B1 (ko) * 2014-03-24 2020-06-30 두산인프라코어 주식회사 유압시스템에서 스윙 모터의 제어방법 및 유압시스템
KR102092481B1 (ko) * 2018-12-19 2020-04-20 주식회사 두산 건설장비용 선회모터의 반전방지 밸브
CN111439691B (zh) * 2020-04-17 2022-03-01 浙江三一装备有限公司 回转装置液控***和工程机械

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Also Published As

Publication number Publication date
EP0791753A4 (en) 2000-01-26
WO1996018041A1 (fr) 1996-06-13
US5862665A (en) 1999-01-26
EP0791753A1 (en) 1997-08-27
CN1173219A (zh) 1998-02-11

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