| 发明名称 |
MOVEMENT METHOD OF POWERED SUPPORT IN COAL FACE |
| 摘要 |
FIELD: mining. ^ SUBSTANCE: powered support movement method is implemented by means of hydraulic jacks installed between conveyor and face-end support; at that, movement is performed by drawing the support along the face and pressing it to the working face. ^ EFFECT: simpler powered support movement process. ^ 2 dwg |
| 申请公布号 |
RU2434137(C2) |
申请公布日期 |
2011.11.20 |
| 申请号 |
RU20070133071 |
申请日期 |
2007.09.03 |
| 申请人 |
SHARYPKIN ALEKSANDR PETROVICH |
发明人 |
SHARYPKIN ALEKSANDR PETROVICH |
| 分类号 |
E21D23/00 |
主分类号 |
E21D23/00 |
| 代理机构 |
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代理人 |
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