公开(公告)号：US06648562B1

公开(公告)日：2003-11-18

申请号：US09877318

申请日：2001-06-08

申请人： Charles D. Calkins ,  Jerry L. Dunn ,  David W. Albertson, Jr. ,  Richard L. Goswick ,  Matthew W. James

发明人： Charles D. Calkins ,  Jerry L. Dunn ,  David W. Albertson, Jr. ,  Richard L. Goswick ,  Matthew W. James

IPC分类号： B23B4108

CPC分类号： F16L41/04 ,  B23B51/044 ,  B23B2215/72 ,  F16L1/26 ,  Y10T137/6123 ,  Y10T408/172 ,  Y10T408/175 ,  Y10T408/50 ,  Y10T408/56275 ,  Y10T408/6793

摘要： Apparatus for tapping a hole in a pipeline adapted to be attached to a support assembly having sealed communication with the exterior of a pipeline and having a tapping machine body with a boring bar rotatably supported therein with a circular cutter at the lower end thereof, a feed screw rotatably supported by the tapping machine body for axially positioning the boring bar, a hydraulically powered boring bar drive assembly within the tapping machine body driving the boring bar, a hydraulically powered feed screw drive assembly within the tapping machine body driving the feed screw and an auxiliary drive shaft affixed to rotate the feed screw drive assembly extending exteriorly of the tapping machine body and adapted to receive supplementary mechanical rotary energy for rotation of the feed screw so the boring bar can be retracted if hydraulic power is lost. A pressure compensation system permits the apparatus to be operated in a subsea environment. A position indicating system permits the location of the boring bar to be read out at a remote location, such as on the ocean's surface and an improved coupon retainer is provided.

摘要翻译： 用于攻破管道中的孔的装置，其适于附接到与管道的外部具有密封连通的支撑组件，并且具有带有可旋转地支撑在其下端的圆形切割器的镗杆的攻丝机主体，进给 螺丝可旋转地由攻丝机主体支撑以轴向定位镗杆，在驱动钻杆的攻丝机主体内的液压动力镗杆驱动组件，驱动进给螺杆的攻丝机主体内的液压动力进给螺杆驱动组件和 辅助驱动轴被固定以旋转进给螺杆驱动组件，其在攻丝机主体的外部延伸并且适于接收辅助的机械旋转能量以供进给螺杆旋转，使得如果液压动力损失，则可以缩回钻杆。 压力补偿系统允许设备在海底环境中运行。 位置指示系统允许在诸如海洋表面的远程位置读取镗杆的位置，并且提供改进的优惠券保持器。