JPH026921B2 - - Google Patents
Info
- Publication number
- JPH026921B2 JPH026921B2 JP54107748A JP10774879A JPH026921B2 JP H026921 B2 JPH026921 B2 JP H026921B2 JP 54107748 A JP54107748 A JP 54107748A JP 10774879 A JP10774879 A JP 10774879A JP H026921 B2 JPH026921 B2 JP H026921B2
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- circuit
- oil
- valve
- hydraulic
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
Landscapes
- Fluid-Pressure Circuits (AREA)
- Jib Cranes (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10774879A JPS5631507A (en) | 1979-08-24 | 1979-08-24 | Preventive circuit for buckling in hydraulic cylinder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10774879A JPS5631507A (en) | 1979-08-24 | 1979-08-24 | Preventive circuit for buckling in hydraulic cylinder |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5631507A JPS5631507A (en) | 1981-03-30 |
JPH026921B2 true JPH026921B2 (enrdf_load_stackoverflow) | 1990-02-14 |
Family
ID=14466961
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10774879A Granted JPS5631507A (en) | 1979-08-24 | 1979-08-24 | Preventive circuit for buckling in hydraulic cylinder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5631507A (enrdf_load_stackoverflow) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102502408A (zh) * | 2011-10-20 | 2012-06-20 | 中联重科股份有限公司 | 液压起重机变幅反弹缺陷控制系统以及汽车起重机 |
CN103482502B (zh) * | 2013-09-30 | 2016-06-01 | 徐州重型机械有限公司 | 一种起重机及其吊臂变幅控制系统 |
CN119712630A (zh) * | 2024-12-27 | 2025-03-28 | 美通重工有限公司 | 一种高空车变幅机构的电控液压系统 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4995661U (enrdf_load_stackoverflow) * | 1972-12-08 | 1974-08-17 |
-
1979
- 1979-08-24 JP JP10774879A patent/JPS5631507A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5631507A (en) | 1981-03-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR930003321B1 (ko) | 가동 크레인의 흔들림 운동 억제장치 | |
US4187681A (en) | Hydrostatic winch | |
JPH081202B2 (ja) | 単動式油圧シリンダの作動回路 | |
CA1131544A (en) | Overrunning load control for hydraulic motors | |
US4767256A (en) | Method of operating a boom | |
US4205591A (en) | Multiple speed hoisting system with pressure protection and load control | |
JPH026921B2 (enrdf_load_stackoverflow) | ||
KR20190109549A (ko) | 건설기계의 제어 시스템 및 건설기계의 제어 방법 | |
US4157736A (en) | Overload protection apparatus for hydraulic multi-function equipment | |
US4142369A (en) | Multiple speed hoisting system with pressure protection and load control | |
JPS6081502A (ja) | 油圧アクチユエ−タの閉回路駆動装置 | |
JP2001247293A (ja) | クレーンの油圧ウインチ回路 | |
US5676264A (en) | Hydraulic boom stop | |
JP3729029B2 (ja) | フォークリフトの荷重検出装置 | |
EP0632789B1 (en) | Hydraulic crane with increased maximum lifting power in the high-position area, and method therefor | |
JP4069029B2 (ja) | 作業機の操作装置 | |
JP3507101B2 (ja) | 油圧モータの駆動回路 | |
KR920004544Y1 (ko) | 굴삭기의 크레인 작업 안전장치 | |
RU1808104C (ru) | Гидропривод крана | |
JP3292280B2 (ja) | クレーンの安全装置 | |
JP3681548B2 (ja) | 油圧ショベルのブームシリンダ用油圧回路 | |
JPH0384202A (ja) | 建設機械の油圧駆動装置 | |
JPS6147799B2 (enrdf_load_stackoverflow) | ||
JPH1081489A (ja) | 車両搭載クレーンの制御装置 | |
KR970010746B1 (ko) | 직진식 유압크레인의 과부하 방지장치 |