基本信息:
- 专利标题： 건설 기계의 붐 구동 장치
- 专利标题（英）：Boom drive device for construction machine
- 专利标题（中）：用于建筑机械的BOOM驱动装置
- 申请号：KR1020147036078 申请日：2013-04-11
- 公开(公告)号：KR1020150022883A 公开(公告)日：2015-03-04
- 发明人： 우에다고지 , 다지마가즈하루
- 申请人： 코벨코 겐키 가부시키가이샤
- 申请人地址： *-*, Itsukaichikou *-chome, Saeki-ku, Hiroshima-shi, Hiroshima, Japan
- 专利权人： 코벨코 겐키 가부시키가이샤
- 当前专利权人： 코벨코 겐키 가부시키가이샤
- 当前专利权人地址： *-*, Itsukaichikou *-chome, Saeki-ku, Hiroshima-shi, Hiroshima, Japan
- 代理人： 장수길; 성재동
- 优先权： JPJP-P-2012-118747 2012-05-24
- 国际申请： PCT/JP2013/002468 2013-04-11
- 国际公布： WO2013175699 2013-11-28
- 主分类号： E02F9/22
- IPC分类号： E02F9/22 ; E02F9/14
A device for driving a boom of a construction machine is provided that is capable of reducing the power needed. The construction machine, the boom cylinder 6 and a hydraulic pump 10 of variable displacement type, and the discharge oil boom cylinder 6, the control valve 12 leading to, boom up for detecting boom up operation and the operation detector 42, a boom cylinder pressure detector (46A, 46B), and a block that blocks allow to permit supply of the hydraulic oil to the head cheuksil (6a) of the boom cylinder 6 from the hydraulic pump 10 is located and the location a switchable supply switching valve 30, and the diffusion flow path 34 for allowing the supply of hydraulic oil to the head cheuksil (6a) at the time of the art block, the head from the hydraulic pump 10 at the time of boom up operation cheuksil (6a ) the time without a supply of the operating oil the excavation reaction force it is determined that the state of extending the boom cylinder 6 and the feed switching valve 30 to the blocking position, and the controller (50 to reduce the capacity of the hydraulic pump 10's) and a.
公开/授权文献:
- KR102011542B1 건설 기계의 붐 구동 장치 公开/授权日：2019-08-16
信息查询:
EspacenetIPC结构图谱:
| E | 固定建筑物 |
| --E02 | 水利工程；基础；疏浚 |
| ----E02F | 挖掘；疏浚 |
| ------E02F9/00 | 不限于从3/00至7/00内所属的一种挖掘机或疏浚机的部件 |
| --------E02F9/20 | .驱动装置；控制装置 |
| ----------E02F9/22 | ..液压或气压驱动装置 |