发明名称 |
Low Inertia Direct Drive Drawworks |
摘要 |
A low inertia permanent magnet motor includes a stator and rotor. The rotor includes a generally tubular and hollow rotor body coupled to the shaft of the motor by one or more spokes and/or webs. The permanent magnets of the rotor are coupled to the rotor body. In some embodiments, the low inertia permanent magnet motor may be used to power a drawworks. In some embodiments, the drawworks may be controlled by an active heave compensation controller. |
申请公布号 |
US2016268857(A1) |
申请公布日期 |
2016.09.15 |
申请号 |
US201615159590 |
申请日期 |
2016.05.19 |
申请人 |
CANRIG DRILLING TECHNOLOGY LTD. |
发明人 |
PACE Gary;Williams Kevin R.;GARAGHTY James;ELLIS Brian |
分类号 |
H02K1/30;E21B19/00;E21B19/084;H02K1/27 |
主分类号 |
H02K1/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
Houston TX US |