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KR910007726A - 이동식 크레인의 진동억제기구 - Google Patents

이동식 크레인의 진동억제기구 Download PDF

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Publication number
KR910007726A
KR910007726A KR1019900006087A KR900006087A KR910007726A KR 910007726 A KR910007726 A KR 910007726A KR 1019900006087 A KR1019900006087 A KR 1019900006087A KR 900006087 A KR900006087 A KR 900006087A KR 910007726 A KR910007726 A KR 910007726A
Authority
KR
South Korea
Prior art keywords
accumulator
switching
oil chamber
closed circuit
oil
Prior art date
Application number
KR1019900006087A
Other languages
English (en)
Other versions
KR930001767B1 (ko
Inventor
요시미 사오또메
Original Assignee
가메다까 소끼찌
가부시끼가이샤 고오베 세이꼬오쇼
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
Publication date
Application filed by 가메다까 소끼찌, 가부시끼가이샤 고오베 세이꼬오쇼 filed Critical 가메다까 소끼찌
Publication of KR910007726A publication Critical patent/KR910007726A/ko
Application granted granted Critical
Publication of KR930001767B1 publication Critical patent/KR930001767B1/ko

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
    • B60P3/28—Vehicles adapted to transport, to carry or to comprise special loads or objects for transporting cranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/18—Control systems or devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
    • B66C13/06—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for minimising or preventing longitudinal or transverse swinging of loads
    • B66C13/066—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for minimising or preventing longitudinal or transverse swinging of loads for minimising vibration of a boom
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/82—Luffing gear
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Transportation (AREA)
  • Jib Cranes (AREA)
  • Control And Safety Of Cranes (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

내용 없음

Description

이동식 크레인의 진동억제기구
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명을 구체화하는 유압회로의 다이아그램.

Claims (2)

  1. 이동식 크레인의 차량본체와 부움과의 사이에 연결된 부움승강 유압실린더, 주유압펌프, 상기 주유압펌프의 방출오일을 제1부하지지오일챔버 및 상기 부움실린더의 대향 제2오일챔버에/로 부터 선택적으로 공급하는 방향제어밸브, 상기 부움상승실린더와 상기 방향제어밸브와의 사이에 연결된 진동억제축압기, 상기 제1및 제2오일챔버를 통해 폐회로를 형성하는 주행 모우드위치와 상기 제1및 제2오일챔버에/로부터 독립적으로 유압을 공급하는 작동모우드 위치와의 사이로 선택적으로 전환가능한 제1전화밸브, 상기 축압기와 상기 폐회로를 연통시키는 주행모우드위치와 상기 폐회로로부터 상기 축압기로의 오일유동을 차단하는 작동 모우드 위치와의 사이에서 선택적으로 전환가능한 제2전환밸브, 부움위치검출수단, 보조유압원으로 부터 상기 제2 오일챔버로 유압공급을 ONㆍOFF 전환시키는 제1 선택기 수단 및 보조유압원으로 부터 상기 축압기로 오일압력공급을 ONㆍOFF 전환시키는 제2선택기 수단을 포함하는 것을 특징으로 하는 이동식 크레인의 진동억제장치.
  2. 제1항에 있어서, 모우드 선택기 스위치, 및 상기 제1오일챔버의 압력에 대응하는 압력레벨이 될때까지 기설정된 유압량을 공급하는 상기 검출수단으로 부터 상기 제2오일챔버로의 신호에 응답하는 상기 제1선택기 수단을 전환시킨 다음, 연속적으로 상기 폐회로를 형성하고 상기 축압기와 상기 폐회로를 연통하는 상기 제1및 제2전환밸브를 전환시키며, 그 이후 유압을 상기 제1오일챔버에 대응하는 압력으로 축압하는 상기 축압기로 공급하는 상기 제2선택기 수단을 전환시키며, 상기 폐회로 및 축압기를 서로 연통상태로 유지시키는데 적합한 제어수단을 더 포함하는 것을 특징으로 하는 이동식 크레인의 진동억제장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019900006087A 1989-10-14 1990-04-30 이동식 크레인의 진동억제기구 KR930001767B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP1-267771 1989-10-14
JP1267771A JPH0815998B2 (ja) 1989-10-14 1989-10-14 ホイール式クレーンの振動抑制装置
JP267771 1989-10-14

Publications (2)

Publication Number Publication Date
KR910007726A true KR910007726A (ko) 1991-05-30
KR930001767B1 KR930001767B1 (ko) 1993-03-13

Family

ID=17449360

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019900006087A KR930001767B1 (ko) 1989-10-14 1990-04-30 이동식 크레인의 진동억제기구

Country Status (4)

Country Link
US (1) US4995517A (ko)
EP (1) EP0482237A1 (ko)
JP (1) JPH0815998B2 (ko)
KR (1) KR930001767B1 (ko)

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US5147172A (en) * 1991-09-03 1992-09-15 Caterpillar Inc. Automatic ride control
DE4129509C2 (de) * 1991-09-05 1994-06-16 Rexroth Mannesmann Gmbh Hydraulische Steueranordnung für Baumaschinen
SE505698C2 (sv) * 1994-04-22 1997-09-29 Hiab Ab Anordning för dämpning av icke önskvärda oscillationsrörelser i en krandel
DE4416228A1 (de) * 1994-05-07 1995-11-09 Rexroth Mannesmann Gmbh Hydraulische Anlage für ein mobiles Arbeitsgerät, insbesondere für einen Radlader
DE4438899C1 (de) * 1994-10-31 1995-09-07 Hydac Technology Gmbh Energierückgewinnungsvorrichtung
US5890870A (en) * 1996-09-25 1999-04-06 Case Corporation Electronic ride control system for off-road vehicles
US5897287A (en) * 1996-09-25 1999-04-27 Case Corporation Electronic ride control system for off-road vehicles
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DE19754828C2 (de) 1997-12-10 1999-10-07 Mannesmann Rexroth Ag Hydraulische Steueranordnung für eine mobile Arbeitsmaschine, insbesondere für einen Radlader, zur Dämpfung von Nickschwingungen
DE19939796C1 (de) * 1999-08-21 2000-11-23 Orenstein & Koppel Ag Verfahren und Arbeitsmaschine zur Herstellung von Bodenflächen
GB2365407B (en) 2000-05-25 2003-10-08 Bamford Excavators Ltd Hydraulic system for wheeled loader
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DE10354959A1 (de) * 2003-11-25 2005-06-30 Bosch Rexroth Ag Hydraulische Steueranordnung für ein mobiles Arbeitsgerät
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CN102661779B (zh) * 2012-04-25 2014-03-19 徐州重型机械有限公司 一种抖动故障综合诊断系统
CN102678813B (zh) * 2012-05-24 2013-06-26 中联重科股份有限公司 缓冲装置及具有该缓冲装置的臂架的防后倾装置
CN102701099B (zh) * 2012-06-13 2015-03-25 徐州重型机械有限公司 因重心偏载引起油缸抖动的故障诊断及处理装置和方法
CN107246044A (zh) * 2017-06-13 2017-10-13 徐州徐工挖掘机械有限公司 底盘涨紧阀组、多级缓冲液压涨紧系统及挖掘机

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Also Published As

Publication number Publication date
KR930001767B1 (ko) 1993-03-13
EP0482237A1 (en) 1992-04-29
JPH03128894A (ja) 1991-05-31
JPH0815998B2 (ja) 1996-02-21
US4995517A (en) 1991-02-26

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