High speed emergency rescue and disaster relief boat capable of upturning and side-swaying hydrofoils

Abstract

The invention provides a high speed emergency rescue and disaster relief boat capable of upturning and side-swaying hydrofoils. A front hydrofoil fixed on a vertical fulcrum bar is mounted on the middle portion of a boat bow, the upper end of the fulcrum bar is connected with a rotation shaft which is connected with a worm and gear, the worm drives the rotation shaft to rotate and enables the front hydrofoil mounted on the fulcrum bar to be turned upwards and contracted on the underbelly of the boat; pod-shaped counter rotating oar pulling type hydrofoil combination propulsion devices are on the port side and the starboard side of a stern portion of the boat respectively, the two propulsion devices are respectively connected with side swaying mechanisms, worms and gears of the side swaying mechanisms drive the two propulsion devices to sway upwards symmetrically along arc-shaped guide rails arranged on a stern blanking plate, or sway downwards to the original position, and the swaying angel is instructed by an angle instructor. The high speed emergency rescue and disaster relief boat has the advantages that when the boat sails with hydrofoils, the boat is propelled by counter rotation oars, and efficiency can be as high as more than 70%. When the boat punches the beach, the front hydrofoil is turned upwards, and the back hydrofoil is swayed laterally; and when the boat gets off the beach, the propulsion devices are rotated for 180 degrees to achieve automatic beach getting off. Accordingly, propelling power is reduced greatly, and effects of high speed energy conservation and good seakeeping are achieved.

Description

technical field [0001] The invention belongs to the technical field of shipbuilding. Background technique [0002] Flood disasters are extremely destructive natural disasters among natural disasters. It is very important to save human life and property. There is no ship wharf in the disaster-stricken area, and ordinary ships generally cannot dock. Moreover, in order to save time, fast ships are needed. More than 40 Sectional high-speed landing craft can only be planing craft and hovercraft. The propulsion method of the planing boat is oblique axis or water jet propulsion, which is not conducive to landing. Although the hovercraft can be landed on the beach, it has poor seakeeping performance and serious stall in waves, about 30-50%, and the efficiency of the air propeller is relatively low, and it needs lifting power, which requires a lot of power, serious energy consumption, and high cost. Contents of the invention [0003] In order to solve the problems of the aforemen...

AI Technical Summary

Problems solved by technology

The propulsion method of the planing boat is oblique axis or water jet propulsion, which is not conducive to landing

Although the hovercraft can land on the beach, its seakeeping performance is poor, and the stall in the waves is serious, about 30-50%, and the efficiency of the air propeller is low, and it needs lifting power. The power demand is large, the energy consumption is serious, and the cost is too high

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