Ship retractable type bilge keel device using guide rails

Abstract

The invention provides a ship retractable type bilge keel device using guide rails. A bilge keel main board is welded to a ship body and is provided with marching guide rails which are internally provided with a retractable type auxiliary board; the middle position of the retractable type auxiliary board is hinged to one end of a double-head hydraulic push rod; driving guide rails are arranged along the bilge portion of the ship body and are internally provided with a hydraulic rod; and the end portion of the hydraulic rod is hinged to the other end of the double-head hydraulic push rod. According to the ship retractable type bilge keel device using the guide rails, the bilge keel width is expandable, the structure is simple, the size is small, and the ship retractable type bilge keel device using the guide rails is especially suitable for large and middle type ships limited in bilge portion space.

Description

technical field [0001] The invention relates to a ship retractable bilge keel device using guide rails, belonging to the field of ships and ocean engineering. Background technique [0002] In the past hundred years, people have been devoting themselves to the research of measures and devices to slow down the rolling motion of ships. Hundreds of different types of anti-rolling devices have been developed in various countries in the world, but only bilge keels, fin stabilizers and Stabilizer water tank. Among them, the bilge keel is more popular because of its simple structure, low cost, good performance and easy maintenance. [0003] The bilge keel is a fixed anti-rolling device that generates a stabilizing moment according to the action of hydrodynamic force. It is installed on the bilge on both sides of the hull and does not participate in the overall longitudinal bending of the hull. The outer plating of the bilge of the hull is vertical, and there are two types: continu...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings of existing anti-rolling devices such as limited installation space, complex structure, high cost, and low efficiency, and at the same time provide a ship retractable bilge using guide rails based on the principle of simple structure and high efficiency The keel device is a device that can reduce the roll angle of the ship under the action of waves

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