公开(公告)号：US20150263650A1

公开(公告)日：2015-09-17

申请号：US14656930

申请日：2015-03-13

Applicant: CANRIG DRILLING TECHNOLOGY LTD.

Inventor： Beat KUTTEL ,  Gary PACE ,  Kevin R. WILLIAMS ,  James GARAGHTY ,  Tommy SCARBOROUGH

IPC: H02P3/22 ,  E21B19/084 ,  B66D1/54 ,  B66D1/12

CPC classification number: H02P3/22 ,  B66D1/12 ,  B66D1/54 ,  H02P29/025

Abstract: A predictive landing failsafe system is adapted to slow or stop a permanent magnet AC motor in response to a selected condition, such as a power outage. In some embodiments, the predictive landing failsafe system may short two or more terminals of the AC motor in response to the selected condition. In some embodiments, one or more resistors may be coupled between the two or more terminals, the resistors lowering the short-circuit current and thus making a more smooth stop for the AC motor. In some embodiments, the AC motor may be used in a drawworks.

Abstract translation: 预测着陆故障保护系统适于响应于所选择的状况（例如断电）来减慢或停止永磁式交流电动机。 在一些实施例中，预测着陆故障保护系统可以响应于所选择的状态而短路AC电动机的两个或更多个终端。 在一些实施例中，一个或多个电阻器可以耦合在两个或更多个端子之间，电阻器降低短路电流，从而使得AC电动机更平稳地停止。 在一些实施例中，AC马达可用于绞车中。

公开(公告)号：US20160031686A1

公开(公告)日：2016-02-04

申请号：US14815622

申请日：2015-07-31

Applicant: CANRIG DRILLING TECHNOLOGY LTD.

Inventor： Beat KUTTEL ,  Kevin R. WILLIAMS ,  Brian Ellis ,  Faisal YOUSEF

IPC: B66D1/82 ,  F16M1/04 ,  H02K5/16 ,  B66D1/12 ,  H02K7/08 ,  E21B41/00 ,  F16F15/02

CPC classification number: B66D1/82 ,  B66D1/12 ,  B66D1/14 ,  F16F15/02 ,  F16M1/04 ,  F16M7/00 ,  H02K5/24 ,  H02K5/26 ,  H02K7/14

Abstract: An electric motor for a direct drive drawworks may be supported by one or more motor mounts. The motor mounts may include adjusting assemblies adapted to increase or decrease the length of the motor mounts. The motor mounts may include damping assemblies adapted to allow damped motion between the electric motor and the surface. The length and damping coefficients of the motor mounts may be adjusted to align the electric motor with the drum or shaft to reduce vibration. The electric motor may be removable from the drawworks by, for example, a splined shaft, a flange coupled shaft, or the rotor being selectively removable from the interior of the motor.

Abstract translation: 用于直接驱动绞车的电动机可以由一个或多个电动机支架支撑。 电动机支架可以包括适于增加或减小电动机支架的长度的调节组件。 电动机支架可以包括适于允许电动机和表面之间的阻尼运动的阻尼组件。 可以调节电机安装座的长度和阻尼系数，使电动机与滚筒或轴对齐，以减少振动。 电动马达可以通过例如花键轴，凸缘联接轴或可从马达的内部选择性地移除的转子从绞车移除。