Azimuth thruster AR 63

externalfor shipsretractable

Direct power transmission using a vertical top-mounted electric motor eliminates the need for special shaft and quick-release coupling arrangements when the thruster is lowered into and retracted from the working position. This solution also eliminates the need for gearboxes to connect the prime mover to the thruster – resulting in better total efficiency. Design principle with valuable customer features Shaped like a long column, installed vertically in the thruster compartment Lowered into operating position and retracted into the hull by means of hydraulically operated lifting equipment When Thruster is retracted, it is mechanically locked by means of spring loaded locking devices and the hull opening will be closed by a flush-plate attached to the bottom of the propeller nozzle Delivered with azimuth arrangement as well as retracting arrangement and guiding column in pre-assembled condition fitted on the tank top/sea chest integration plate This arrangement will allow for easy installation/integration of the complete Thruster Unit When in lowered operating position the thruster unit is "locked" and pre-loaded in this position by means of the hydraulic lifting/lowering actuators When the thruster is in operating position but not turning, the azimuth movement is locked by mechanical brakes The stem housing is moving through a combined sealing box and bearing housing which is mounted to the tank top/sea chest integration plate