公开(公告)号：US20150014066A1

公开(公告)日：2015-01-15

申请号：US13942405

申请日：2013-07-15

Applicant: Canrig Drilling Technology Ltd

Inventor： W. Randall SLOCUM ,  Keith A. HAGER

IPC: E21B17/00

CPC classification number: E21B19/086

Abstract: An apparatus includes a thrust bearing adapted to engage a tubular component. A bearing carrier is connected to the thrust bearing, an arm is connected to the bearing carrier, and an actuator is connected to the arm. In one embodiment, the bearing carrier includes an arcuate notch through which the tubular component is adapted to extend. In another embodiment, the apparatus has a first configuration in which a vertical offset is defined between the tubular component and the thrust bearing, and a second configuration in which the thrust bearing is engaged with the tubular component for the support thereof. In another embodiment, the apparatus is placed in the first configuration in response to a cessation of a supply of electrical power to a control valve in fluid communication with the actuator. In another embodiment, the tubular component is connected to, or is part of, a quill of a top drive.

Abstract translation: 一种装置包括适于接合管状部件的推力轴承。 轴承架与推力轴承相连，臂与轴承架相连，执行机构连接在手臂上。 在一个实施例中，轴承托架包括弧形凹口，管状部件通过弧形槽口延伸。 在另一个实施例中，该装置具有第一构造，其中在管状部件和推力轴承之间限定垂直偏移，以及第二构造，其中推力轴承与用于支撑的管状部件接合。 在另一个实施例中，响应于向与致动器流体连通的控制阀的电力供应的停止，该装置被置于第一配置中。 在另一个实施例中，管状部件连接到顶部驱动器的羽毛或者是其顶部驱动器的羽毛管的一部分。