Duck tail type stern icebreaking structure

Abstract

The invention discloses a duck tail type stern icebreaking structure which comprises a stern and a rudder installed on a rudder horn located at the boat bottom. An inwards inclined duck tail is arranged at the lower end of the stern, and the center line of the stern extends downwards along the upper edge of the duck tail to be provided with a pseudo rudder, and the rudder is located below the pseudo rudder. A triangular ice skate blade is installed on the lower end surface of the pseudo rudder and located behind the rudder, and the space between the ice skate blade and the rudder is 150-250mm. When a boat backs, the duck tail type stern icebreaking structure crushes floating ices through pressing through the duck tail, the ice skate blade can cut open trash ices rushing at the rudder, and therefore impact on a boat body, especially the rudder from the ice blocks can be avoided. The ice-ward side of the pseudo rudder is sharp so that the pseudo rudder can cut open the trash ices rushing at the rudder. Therefore, the duck tail type stern icebreaking structure can improve the icebreaking effect, guarantee boat safety and improve maneuverability.

Description

technical field [0001] The invention relates to a ship ice-breaking structure, in particular to a duck-tail type stern ice-breaking structure. Background technique [0002] With the development of science and technology, people have expanded from the land to the sea, and the shipbuilding industry has become more and more developed, undertaking the transportation between continents. With the opening of the Arctic Ocean route, the icebreaking capability of ships has also received extensive attention. However, for ships navigating in ice areas, due to the low temperature of the waters, there will be a large amount of floating ice in winter, and in severe cases, the sea will freeze as a whole to form an ice layer. It will be impacted by ice floes and ice layers. Although the current hull is ice-strengthened in the corresponding areas, it is easy to cause structural damage after a long period of time, increasing maintenance and operating costs in the later period, and has a grea...

AI Technical Summary

Problems solved by technology

However, for ships navigating in ice areas, due to the low temperature of the waters, there will be a large amount of floating ice in winter, and in severe cases, the sea will freeze as a whole to form an ice layer. It will be impacted by ice floes and ice layers. Although the current hull is ice-strengthened in the corresponding area, it is easy to cause structural damage after a long period of time, increasing maintenance and operating costs in the later period, and has a greater safety risk

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