公开(公告)号：US08702349B2

公开(公告)日：2014-04-22

申请号：US13310643

申请日：2011-12-02

申请人： Robert Ward Carter ,  Robert Ding

发明人： Robert Ward Carter ,  Robert Ding

IPC分类号： F16L55/18

CPC分类号： F16L55/1658 ,  E21B7/205 ,  F16L55/18

摘要： Apparatus for replacing underground pipe is described, including a resistance plate from which a pair of hydraulic cylinders extend perpendicularly in parallel with each other. The cylinders operate cyclically with a pulling bridge having a cable gripper to provide a sequence of pulling strokes to a cable pulling a mole. The mole pulls a replacement pipe behind it through the old pipe, which has been burst, slit, or otherwise expanded by the mole. The resistance plate is provided with a slot, and the cylinders are positions such as to allow the mode to be pulled substantially completely into the apparatus. A holding bridge is releasably mounted spanning the slot in the reaction plate to position a second cable gripper for holding the cable on return stroke of the pulling bridge. The holding bridge may be removed at the end of the pulling operation to accommodate the mole.

摘要翻译： 描述了用于替换地下管道的装置，包括一对液压缸彼此平行延伸的电阻板。 气缸用具有电缆夹持器的拉桥周期性地操作，以向牵引鼹鼠的电缆提供一系列拉动冲程。 该鼹鼠通过旧管道将替代管道拉出，该管道已被爆裂，狭缝或以其他方式扩展。 电阻板设置有槽，并且气缸是允许将模式基本上完全拉入设备的位置。 支撑桥可拆卸地安装在反作用板中的狭槽上，以定位用于将电缆固定在牵引桥的返回行程上的第二缆线夹。 在牵引操作结束时，可以移除保持桥以容纳该摩擦。