Device for exerting pushing- or traction force on pipe lines to be laid in ground for overcoming watercourses or other obstacles, has pivot arm placed between pedestal and main cylinder and is connected with pedestal by pin

摘要

The device (1) has two parallel and mirror-image push cups (2,2') and a bench vise (8), which couples the device to a pipe line to be pushed or pulled. A pivot arm (6) is placed between a pedestal (5) and a main cylinder (3) and is connected with the pedestal by a pin (9), around which the pedestal rotates. The pin is moved by a vertical-adjusting cylinder (7). A counter pressure-roll path is placed between the two push cups, which lies orthogonal to longitudinal axis of the pedestal. The counter pressure-roll path is hinged to the pivot arm on a hinge point (21). The pivot arm in interaction with a positioning cylinder (4) and with the vertical-adjusting cylinder imparts a variable geometry, which has the ability to automatically engage countless variable angle in connection with countless variable height to a horizontal working axis.