Flap type rudder structure

Abstract

The invention discloses a flap type rudder structure. One side of the tail part of a main rudder blade is arc-shaped and sunken inwards, and a flap is arranged at the arc-shaped sunken part of the main rudder blade; a telescopic rod and a rudder blade cover with a guide rail are installed at the top and the bottom of the main rudder blade respectively, the tail end of the telescopic rod is connected with the two ends of a flap rudder stock through bearings, a driving rod is installed on a supporting rod connected to the flap rudder stock, and the end of the driving rod is connected with the guide rail through a sliding block. When the main rudder blade is located in the middle of a ship, the flap contracts to the arc-shaped sunken part on one side of the tail portion of the main rudder blade, and the whole flap rudder is in a symmetrical wing shape. When the flap type rudder needs to be adjusted, the telescopic rod drives the flap to extend out to a set distance, and then the driving rod drives the flap to steer, so that the total area of the flap type rudder is changed, and the camber required by sailing is obtained. Through the arrangement of the flap type rudder structure, the total area of the rudder blade of the flap type rudder can be conveniently and quickly changed, so that the requirements of different navigational speeds on the rudder effect are met, the rudder effectin a low-speed state is effectively improved, or the ship resistance in a high-speed state is reduced.

Description

technical field [0001] The invention relates to a ship structure, in particular to a flap rudder structure. Background technique [0002] Flap rudder refers to the rudder composed of main rudder blades and flaps. The flaps are connected to the random edge of the main rudder blades and can be independently controlled by a separate mechanism. The angle is greater than the rudder blade turning angle. Flap rudder increases the camber of the rudder by adjusting the angle of the flaps, thereby increasing the lift of the rudder. [0003] When the main rudder blade of the flap rudder is in the neutral position, the axis of the flap coincides with the main rudder blade to maintain a symmetrical state; when the main rudder blade rotates to both sides, the flap is symmetrical from the neutral state under the action of the transmission mechanism Gradually becoming asymmetrical until the required camber is achieved, which produces the required thrust, giving the vessel better maneuvera...

AI Technical Summary

Problems solved by technology

If the ship is sailing at low speed, if it is necessary to further increase the rudder effect, it is necessary to increase the wet surface area of ​​the rudder blade as a whole, which will inevitably increase the total resistance of the ship; while sailing at high speed, it only needs to steer at a small angle, and does not need too much Rudder area, too large rudder area will inevitably produce greater frictional resistance when the ship sails at high speed, which deteriorates the ship's speed and energy consumption level

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