Double-plate translation rectifying anti-drag anti-motion device for speed boat

Abstract

The invention discloses a double-plate translation rectifying anti-drag anti-motion device for a speed boat. The device comprises two driving mechanisms and two executing mechanisms, wherein the two driving mechanisms are respectively arranged in the tail of a planing boat, the two executing mechanisms are arranged at two sides outside the tail of the planing boat, and the executing mechanisms are in embedded connection with the driving mechanisms. Each driving mechanism comprises a stepping motor, a seal device, a driving shaft, an eccentric wheel and a driving slid block. Each executing mechanism comprises a base plate, a cover plate, current plates, a plurality of anti-raise pins, a plurality of pairs of guide slide blocks and a plurality of driving slide blocks. The device is suitable for the rectifying anti-drag anti-motion of a flat stern transom plate type single-body and a double-body speed boat or a flat stern transom plate type water discharge type high-speed surface ship. By adjusting the water shearing amplitude of two current plates, adjusting the water inlet amplitude of the current plates moving along the plane and the water shearing angle of the current plates rotating along the plane, changing the flow regime of a water flow field at the bottom of the speed boat, and changing the water power pressure and pressure center opposition of the speed boat, the aims of anti-drag and anti-motion are achieved.

Description

technical field [0001] The invention relates to a drag reduction and anti-rolling device for a speedboat, in particular to a drag and anti-rolling device with several adjustable flow plates arranged at the stern of the boat, which belongs to the technical field of ship engineering. Background technique [0002] When speedboats (including displacement boats, transition boats, and planing boats) sail at high speed on the water surface, due to the action of wind, waves, and currents, the hull will sway significantly, which poses a threat to the safety of personnel, equipment, and boats. Especially for military boats, weapons cannot be used normally, so as to delay fighters. At present, there are many types of anti-rolling devices for ships. In summary, there are mainly the following anti-rolling methods: bilge keels, anti-rolling water tanks, and anti-rolling fins. Due to the particularity of the speedboat’s sailing state and the small displacement of the hull, except for the...

AI Technical Summary

Problems solved by technology

When reducing the amplitude of the roll, the water flow at the bottom of the speedboat has a phenomenon of "outside spray", which will have an adverse effect on the speed and speed of the speedboat.

In complex sea conditions, the anti-rolling effect is not ideal; at the same time, the envelope surface of the lower edge of the actuator does not coincide with the naturally extending surface of the bottom of the boat, so that the hull has different degrees of water flow in certain sailing states. The phenomenon of "rake water" flowing in the bow direction increases the resistance of the speedboat to advance

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