公开(公告)号：US20140255123A1

公开(公告)日：2014-09-11

申请号：US13790891

申请日：2013-03-08

申请人： CANRIG DRILLING TECHNOLOGY LTD.

发明人： Preston WEINTRAUB

IPC分类号： F16B39/284 ,  B23P19/06

CPC分类号： F16B39/028 ,  E21B12/00 ,  E21B17/046 ,  Y10T29/49963

摘要： Locking devices and methods are described. The locking device includes a non-resilient locking threadform that is expandable and a threaded expander. The threadform includes a threaded exterior portion and an axially-oriented, threaded interior recess at a proximal end of the threadform. The threaded exterior portion has a length and is configured to connect two articles in an axial direction. The threaded expander has a threaded exterior that is oversized relative to the threaded interior recess so as to expand the threaded exterior portion radially as the threaded expander is positioned in the threaded interior recess.

摘要翻译： 描述了锁定装置和方法。 锁定装置包括可伸缩的非弹性锁定螺纹形式和带螺纹的膨胀器。 螺纹形状包括螺纹外部部分和在螺纹形状的近端处的轴向定向的带螺纹的内部凹部。 螺纹外部部分具有长度并且构造成在轴向方向上连接两个物品。 螺纹膨胀器具有螺纹外部，其相对于螺纹内部凹部尺寸过大，以便当螺纹膨胀器定位在螺纹内部凹部中时，使螺纹外部部分径向膨胀。