FIN PROPULSOR

摘要

The invention relates to shipbuilding. A fin propulsor contains a housing, a fin in the form of a wing, a drive, a propulsor control mechanism, at least two identical vertical fins, and a turning device. The housing is in the form of a vertical pipe. The propulsor control mechanism contains a shaft which is installed with the ability to rotate axially in the housing, the upper end of which is kinematically connected to the drive, which is in the form of a rotary hydraulic cylinder. Rigidly connected to the lower portion of the shaft are two pairs of parallel first levers; corresponding ends of each pair of first levers are pivotally connected to the center portions of corresponding second levers. The ends of each pair of second levers are pivotally connected to one another and to the housing by means of pull-rods, forming an upper parallelogram and a lower parallelogram; the nearest centers of the second levers of the parallelograms are rigidly connected to one another by means of torsion bars. Each fin is vertically affixed to a corresponding torsion bar and perpendicularly affixed to the nearest second lever with the ability to oscillate in a horizontal plane around the axis of the torsion bar, said axis dividing the fin into two unequal parts, the smaller of which coincides with the direction of thrust creation. The present invention thus achieves conditions for automatically optimizing a current rigidity of the mechanical connection between the fin and the drive.