| 摘要 |
A pipe insertion machine for pushing new pipe sections (82) into an existing pipeline (22) having a internal diameter is provided, including a support structure(39), translating components(80), and gear reduction components(120). The support structure (39) includes a plurality of support beams rigidly connected to form a frame and a longitudinal axis parallel to the existing pipeline(22). The translating components (80) include a winch drum (90), a winch drive shaft (92), two translating cables (96), (98), a pushing mechanism (102), and multiple idlers (100). The winch drum (90) and winch drive shaft (92) are supported by the frame (68) in a position such that the axis of rotation of the winch drum (90) is transverse to the longitudinal axis (70) of the support structure (39). The translating cables (96), (98) each form a loop extending from the winch drum (90), to the back end (66) of thesupport structure(39), along a path parallel to the longitudinal axis (70) of the support structure (39), to the front end (64) of the support structure (39), and back to the winch drum (90). The pushing mechanism (102) has a pushing face located in aplane normal to the longitudinal axis (70) of the support structure(39) and is engagable with a new pipe section (82). The pushing mechanism (102) is located between the translating cables (96), (98) and is attached to them in their longitudinal portions. The pushing mechanism (102) includes a reversible pushing head (106) and a pushing beam(104). Multiple idlers(100) are provided for guiding the loops formed by the translating cables(96), (98). Additional components include gear reduction components (120), a clamping device (180), a pipe elevator mechanism (154), load monitors and recorders, pressure regulators, and an operator's station (151).
|
