Air-propelled ship trim self-adjusting device

Abstract

An air-propelled ship automatic trim adjustment device comprises a fixed wing and a movable wing installed along the longitudinal direction of a ship body; both the fixed wing and the movable wing are located right behind an air propeller; the air propeller is fixed on the ship body; the fixed wing is fixed on the ship body through a bracket; the movable wing is firmly connected with a spindle; the spindle supports the middle-rear part of the fixed wing in a rotatable manner or supports the rear part of the fixed wing in a rotatable manner; upper airfoil profile surfaces of both the fixed and the movable wings are flat planes; lower airfoil profile surfaces of both the fixed and the movable wings are outer convex arc surfaces; when the movable wing rotates to where its wing chord coincides with the extension cord of the wing chord of the fixed wing, the upper airfoil profile surface of the movable wing coincides with the extension surface of the upper airfoil profile surface of the fixed wing, and the lower airfoil profile surface of the movable wing coincides with the extension arc surface of the lower airfoil profile surface of the fixed wing. The air-propelled ship automatic trim adjustment device provided by the invention is able to address the forerake issues of amphibious air-propelled ships when sailing on water or sliding on land.

Description

technical field [0001] The invention relates to the technical field of propulsion of ships by means of air propellers, in particular to a trim self-adjusting device for controlling the forward tilt of the ship in the air propulsion ship. Background technique [0002] In order to meet the requirements of amphibious performance, ships using air propeller engines as power systems have been born, which are generally called air-propelled ships, the most typical of which is the hovercraft. The power system of an air-propelled ship is generally arranged on the deck. As a result, in addition to generating forward thrust, the power system will also generate a bowing moment relative to the ship and the contact surface (water surface or ground), so that the ship Forward leaning phenomenon will occur, especially at high speed, the forward leaning phenomenon is more serious, and the forward leaning is not conducive to air propelling the ship to sail on the water or slide on the ground. ...

AI Technical Summary

Problems solved by technology

[0004] The applicant improves on the above-mentioned shortcomings in the prior art, and provides an air-propelled ship trim self-adjusting device, which can solve the forward tilt problem of an amphibious air-propelled ship when sailing on water and gliding on land

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