A rocking telescopic arm anti-rolling device for ship anti-rolling

Abstract

The utility model relates to a rocking telescopic arm anti-rolling device for ship anti-rolling, which relates to a anti-rolling technology of a yacht. A base, a bearing group, a telescopic arm, a propeller self-rotating transmission chain, a telescopic arm rocking transmission chain, a bearing, a motor support and a base bolt hole are arranged; The base is fixedly connected with the bearing group, the motor support and the bearing, and the base is provided with a base bolt hole fixed with the hull deck; The propeller self-rotating transmission chain is provided with a self-rotating motor, a motor bevel gear, a propeller and a telescopic arm bevel gear, wherein the motor bevel gear is fixed on the self-rotating motor, the propeller and the telescopic arm bevel gear are fixed on the telescopic arm, and the self-rotating motor is vertically arranged with the telescopic arm; The telescopic arm rocking transmission chain is provided with a shell spur gear, a rotating body shell, a motor spur gear and a rocking motor, wherein the shell spur gear is fixedly connected with the rotating body shell, the motor spur gear is fixedly connected with the rocking motor, and the spin motor is fixedin the rotating body shell.

Description

technical field [0001] The invention relates to yacht anti-rolling technology, in particular to a swing telescopic arm anti-rolling device for reducing ship's roll. Background technique [0002] When a ship sails in sea waves, due to the influence of wind, waves, currents and other factors, it will produce six degrees of freedom of motion: roll, pitch, yaw, sway, surge, and heave. Improper control of these movements will cause attitude instability and endanger the safety of ship navigation ([1]Perez T, Blanke M. Ship roll damping control[J].Annual Reviews inControl,2012,36(1):129-147) . [0003] The shaking of the ship when navigating in the river and sea is mainly rolling. In order to reduce the rolling of the ship, generally the hull will be modified and equipped with some anti-rolling devices. In some yacht-based luxury goods, comfort has become a very important indicator to measure the quality of a yacht. Generally speaking, the internal space of small yachts is relat...

AI Technical Summary

Problems solved by technology

However, the fin stabilizer is only effective at high speeds, and the effect is not obvious at low speeds and zero speed.

In addition, the modification cost of stabilizer fins and later maintenance costs are relatively high, which is not suitable for small yachts

[0005] The application range of the anti-rolling water tank is also relatively wide. The anti-rolling water tank uses the effect of the reverse torque inside the ship, and the anti-rolling effect is also very good, but the change of the ship hull by the anti-rolling water tank is relatively large, generally accounting for about 1% to 4% of the entire ship. % displacement, not suitable for small and medium-sized ships with high maneuverability

[0006] Using the Coriolis effect when the weight moves in the radial direction in the rotating system, Hirakawa et al. ([2] Hirakawa Y, Hirayama T, Kakizoe K, et al. Sea trial of prototype Vertical Weight Stabilizer (VWS) from Yokohama National University in Japan anti-rolling system for small ships[J].Journalof Marine Science&Technology,2014,19(3):292-301) proposed a vertical gravity stabilizer system, and confirmed its effectiveness in ship model experiments, but lack suitable actuators, the practical application of the system is more difficult

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