Marine rudder device with rudder stopping function

Abstract

The invention discloses a marine rudder device with a rudder stopping function. The marine rudder device comprises a rudder stock bearing seat and a rudder horn, the left end part and the right end part of the rear end surface of the rudder horn are respectively provided with a flange part, and the flange parts are vertically distributed along the rear end surface of the rudder horn; the flange part comprises a first protruding end and a second protruding end. The first protruding end is located above the second protruding end. The length of the first protruding end in the ship midline direction is larger than that of the second protruding end in the ship midline direction. A sunken part is arranged on the outer wall of the rudder stock bearing seat; the sunken part extends from the left outer wall of the rudder stock bearing seat to the right outer wall of the rudder stock bearing seat; the sunken part is provided with a sunken main body part; the sunken part is also provided with two blocking ends, and the two blocking ends are the left end portion and the right end portion of the sunken part respectively. The two blocking ends are located on the two sides of the rudder stock respectively. The rudder blade can be braked when the rudder blade rotates due to sudden external force, and the rudder blade is prevented from continuously rotating to damage a steering engine.

Description

technical field [0001] The invention relates to the technical field of ships, in particular to a ship rudder device with a rudder stop function. Background technique [0002] As the competition for environmental resources becomes more and more fierce, and more and more polar resources are being developed and utilized, the demand for high-ice-class ships in the shipping industry is increasing. The load, especially the rudder blade hanging outside the main hull, will often be hit by the ice layer and rotate. When the impact force is large, the angle of the rudder blade will easily break through the limitation of the limit device of the steering gear, and the rotation angle is too large Cause damage to the steering gear body. The rudder system is one of the cores of the ship control system, and its importance is self-evident. Once the steering gear is damaged, the control of the rudder blades cannot be realized, and the blow to the sailing ship will be huge. [0003] Rudder b...

AI Technical Summary

Problems solved by technology

[0005] The rudder stop plate is usually composed of a rudder stop plate, a connecting plate and a backing plate, and is welded to the rudder stock seat. Full penetration is required to ensure sufficient connection strength. Not only is the welding and grinding process complicated, but additional monitoring of weld quality is also required, which is time-consuming and laborious. In addition, the thickness of the rudder plate is usually very thick to resist large concentrated loads. The weight is heavy; from the appearance, the rudder plate is an appendage of the rudder blade, and the protruding rudder blade line shape affects the appearance and smoothness of the line shape, and at the same time increases the navigation resistance, which is not conducive to the economy of the ship's navigation

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