发明名称 DRAWWORKS
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.
申请公布号 US2015097149(A1) 申请公布日期 2015.04.09
申请号 US201314384389 申请日期 2013.02.14
申请人 AKER WIRTH GMBH 发明人 Heinrichs Albrecht
分类号 E21B19/00;B66D1/82;B66D1/14;B66D1/28 主分类号 E21B19/00
代理机构 代理人
主权项
地址 ERKELENZ DE