Marine fin rotation device of fin stabilizer

Abstract

The invention relates to marine equipment, in particular to improvement on a fin rotation device in a ship fin stabilizer device. The marine fin rotation device of the fin stabilizer comprises a fin box, wherein a fin base is mounted in the fin box; a fin shaft and a rotating vane type hydraulic device are mounted on the fin base, and the fin shaft can rotate around the axis of the fin shaft in the fin base; a fin wing is mounted on the fin shaft on one side of the fin base, and forms a fin together with the fin shaft; the fin shaft on the other side of the fin base is mounted in a shaft hole of the rotating vane type hydraulic device; a gap is formed between the inner wall of the shaft hole in the rotating vane type hydraulic device and the outer wall of the fin shaft distributed in the shaft hole. The marine fin rotation device can automatically adapt to the offset fin shaft axis, and is simple in structure and easy to implement, normal operation of the fin rotation device is ensured, and the service life of the fin rotation device is prolonged.

Description

technical field [0001] The invention relates to marine equipment, in particular to the improvement of a fin stabilizer for a ship and a fin stabilizer. Background technique [0002] When a ship encounters wind and waves during navigation, it will sway laterally. The lateral sway of the ship will reduce the seaworthiness of the ship, damage the hull structure, affect the normal operation of equipment and instruments, and cause cargo displacement or impact damage , will also make passengers and crew dizzy, and may affect the combat effectiveness of combat ships. In order to reduce the lateral swing of the ship, many colleagues have conducted in-depth research. At present, the solution with better effect is to install anti-rolling in the bilge of the ship Fin and its control device, the control device outputs a control signal to control the angle of rotation of the fin shaft of the stabilizer fin around its axis by measuring the angle of the ship's lateral sway, combined with f...

AI Technical Summary

Problems solved by technology

In actual work, due to factors such as vibration, water impact and wear, there will be gaps between parts, and the fin shaft will be deflected at a certain angle. However, the current rotary vane hydraulic device does not have the function of axis deflection. Therefore, the offset of the fin shaft is easy to damage the rotary vane hydraulic device, and there is no good solution yet

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