| 摘要 |
<p>A pipe racking system is shown of the type having a vertical track (11), a lifting assembly (13) adapted for vertical movement along the track (11), a horizontal beam (15) for supporting the vertical track (11), and a movable carriage (17) connecting the vertical track (11) to the horizontal beam (15). The lifting assembly (13) is supported by a wire rope (19) running from the lifting assembly inside the vertical track (11) and outside the carriage (17) to a source of lifting power (21). A fixed guide means (123) mounted in the carriage (17) serves as a first point of contact for the wire rope (19) running from the lifting assembly (13) to the carriage (17). A rotatable guide means (131) mounted in the carriage (17) serves as a second point of contact for the wire rope (19). The rotatable guide means (131) is rotatable by the wire rope (19) in response to movement of the carriage (17), vertical track (11), and horizontal beam (15) to center the wire rope (19) in the guide wheel grooves of the guide means (121,131) during racking operations.</p> |
