MARINE LIFTING APPARATUS

摘要

An apparatus is provided for use in combination with a sensor operative to detect heave motion. The apparatus comprises a main chassis, a drive assembly, a lifting column, a pinion, and control circuitry. The drive assembly is mounted to the main chassis and comprises a drive gear. The lifting column is translatably disposed in the main chassis and comprises a linear gear rack that runs along a longitudinal axis. The pinion is rotatably coupled to the rotation of the drive gear and engages with the linear gear rack such that rotation of the pinion is coupled to translation of the lifting column in the main chassis along the longitudinal axis. Finally, the control circuitry is operative to command the drive assembly to cause the lifting column to translate in the main chassis at least in part based on the heave motion detected by the sensor.

主权项

1. An apparatus for use in combination with a sensor operative to detect heave motion, the apparatus comprising:
a main chassis; a drive assembly, the drive assembly mounted to the main chassis and comprising a drive gear; a lifting column, the lifting column translatably disposed in the main chassis and comprising a linear gear rack that runs along a longitudinal axis; a pinion, the pinion rotatably coupled to the rotation of the drive gear and engaged with the linear gear rack such that rotation of the pinion is coupled to translation of the lifting column in the main chassis along the longitudinal axis; and control circuitry, the control circuitry operative to command the drive assembly to cause the lifting column to translate in the main chassis at least in part based on the heave motion detected by the sensor.