发明授权
- 专利标题: Drawworks
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申请号: US14384389申请日: 2013-02-14
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公开(公告)号: US09949680B2公开(公告)日: 2018-04-24
- 发明人: Albrecht Heinrichs
- 申请人: MHWIRTH GMBH
- 申请人地址: DE Erkelenz
- 专利权人: MHWIRTH GMBH
- 当前专利权人: MHWIRTH GMBH
- 当前专利权人地址: DE Erkelenz
- 代理商 Norman B. Thot
- 优先权: DE102012102046 20120312
- 国际申请: PCT/EP2013/052956 WO 20130214
- 国际公布: WO2013/135452 WO 20130919
- 主分类号: E21B19/00
- IPC分类号: E21B19/00 ; A61B5/157 ; A61B5/15 ; G01N33/487 ; A61B5/145 ; A61B5/1455 ; A61B5/1468 ; A61B5/151 ; A61B10/00
摘要:
A drawworks for a drilling device for lowering and hoisting a load such as a drill string or parts thereof includes a frame comprising a first bearing point, a second bearing point, and a third bearing point, a winding drum, and a first bearing device connected to the frame for the winding drum. The first bearing device is arranged so that a center of respective bearing forces is located at each of the first bearing point, at the second bearing point, and at the third bearing point.
公开/授权文献
- US20150097149A1 DRAWWORKS 公开/授权日:2015-04-09
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