发明名称 DRAWWORKS
摘要 <p>In the case of a drawworks (100) for a drilling device for lowering and withdrawing a load, in particular a drill string or parts thereof, having a frame (1), having a winding drum (2) and having a bearing device (5), connected to the frame (1), for the winding drum (2), the centres (Z) of the bearing forces are located at precisely three points (S, S2, S3) of the frame (1).</p>
申请公布号 CA2865239(A1) 申请公布日期 2013.09.19
申请号 CA20132865239 申请日期 2013.02.14
申请人 AKER WIRTH GMBH 发明人 HEINRICHS, ALBRECHT
分类号 B66D1/28;E21B19/00 主分类号 B66D1/28
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