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Drawworks
专利权人:
发明人:
Albrecht Heinrichs
申请号:
US14384389
公开号:
US09949680B2
申请日:
2013.02.14
申请国别(地区):
US
年份:
2018
代理人:
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.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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