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CN-121990121-A - Design method of ship stern area ice breaking separation device and ship

CN121990121ACN 121990121 ACN121990121 ACN 121990121ACN-121990121-A

Abstract

The invention relates to the technical field of ships, in particular to a design method of an ice breaking and separating device in a stern area of a ship and the ship, the design method of the ice breaking and separating device in the stern area of the ship comprises the following steps that a broken ice blade is fixedly arranged on a stern sealing plate of the stern of the ship along the length direction of the ship, the broken ice blade is positioned at the outer side of the bottom of the stern sealing plate, the broken ice blade is positioned right behind a rudder system, and one side of the broken ice blade, which is far away from the stern sealing plate, is provided with a broken ice blade part; rudder balls are fixedly arranged on rudder blades of the rudder system, extend towards the bow of the ship along the length direction of the ship, the first ends of the rudder balls are fixedly connected with the rudder blades, the second ends of the rudder balls extend out relative to the rudder blades, and the second ends of the rudder balls are spherical. The invention can protect the stern structure and the rudder system, thereby reducing damage to the stern structure and the rudder system caused by ice cubes.

Inventors

  • MEI ZHIGANG
  • HUANG SHENHUA
  • ZOU LIANGMING
  • CAI ZHENBIAO

Assignees

  • 中船黄埔文冲船舶有限公司

Dates

Publication Date
20260508
Application Date
20260327

Claims (10)

  1. 1. The design method of the ship stern area ice breaking and separating device is characterized by comprising the following steps of: A crushing ice blade (1) is fixedly arranged on a stern sealing plate (110) at the stern of the ship along the length direction of the ship, the crushing ice blade (1) is positioned at the outer side of the bottom of the stern sealing plate (110), the crushing ice blade (1) is positioned right behind a rudder system, and one side of the crushing ice blade (1) away from the stern sealing plate (110) is provided with a crushing ice blade part (11); Rudder blade (2) of rudder system is last to be fixed to set up rudder ball (3), rudder ball (3) are followed the length direction of boats and ships orientation the bow of boats and ships extends, just first end (31) of rudder ball (3) with rudder blade (2) fixed connection, second end (32) of rudder ball (3) are relative rudder blade (2) stretches out, just second end (32) of rudder ball (3) are spherically.
  2. 2. Design method of a ship stern area ice breaking separation device according to claim 1, characterized in that the horizontal section of the ice crushing blade (1) is streamlined.
  3. 3. Design method of a ship stern area ice breaking separation device according to claim 1, characterized in that the crushed ice blade (11) of the crushed ice blade (1) is flush with the stern outer plate of the ship.
  4. 4. The design method of the ship stern area ice breaking separation device according to claim 1, wherein an ice pressing inclined surface (12) is designed at the lower end of one side of the ice crushing blade (1) away from the stern sealing plate (110), the upper end of the ice pressing inclined surface (12) is connected with the lower end of the ice crushing blade part (11), and the ice pressing inclined surface (12) is obliquely downwards arranged along the direction from the stern to the bow of the ship.
  5. 5. The design method of the ship stern area ice breaking separation device according to claim 4, wherein an ice guiding inclined plane (13) is arranged on the lower end face of the ice crushing blade (1), one end of the ice guiding inclined plane (13) is connected with the ice pressing inclined plane (12), the other end of the ice guiding inclined plane (13) is connected with the stern sealing plate (110), and the ice guiding inclined plane (13) is arranged obliquely upwards along the direction from the stern to the bow of the ship.
  6. 6. The design method of the ship stern area ice breaking and separating device according to claim 1, wherein the crushed ice skates (1) are manufactured by adopting a cast steel process, and the crushed ice skates (1) need to be subjected to heat treatment in the manufacturing process.
  7. 7. The method for designing the ice breaking and separating device for the stern area of the ship according to claim 1, wherein an arc-shaped steel plate is wrapped on the periphery of the rudder ball (3) to form a shell (33), a reinforcing rib plate (34) is arranged in the middle of the shell (33), and the shell (33) is supported by the reinforcing rib plate (34).
  8. 8. Design method of a ship stern area ice breaking separation device according to claim 1, characterized in that the first end (31) of the rudder ball (3) is cone-shaped, the first end (31) of the rudder ball (3) is inserted into the rudder blade (2) and welded with the rudder blade (2).
  9. 9. The method for designing a ship stern area ice breaking separation device according to claim 1, characterized in that the rudder ball (3) is streamlined as a whole.
  10. 10. Ship, characterized by comprising a hull (100), a crushed ice blade (1) and a rudder ball (3), said crushed ice blade (1) and said rudder ball (3) being designed and arranged on said hull (100) using the design method of the ship stern area ice breaking separation device according to any one of claims 1-9.

Description

Design method of ship stern area ice breaking separation device and ship Technical Field The invention relates to the technical field of ships, in particular to a design method of an ice breaking and separating device for a stern area of a ship and the ship. Background The ice area grading symbol of the ship is a special mark granted according to the ice area sailing capability of the ship, and the special mark is essentially used for defining the sailing qualification of the ship in different ice areas and guaranteeing the sailing safety of the ice area. The ship for obtaining the ice area grading symbol has the advantages that the pertinence is enhanced in structure and equipment, the ship body structure is that a ship bow is designed in an ice breaking way, the thickness of a ship hull plate is increased by 20% -50% compared with that of a common ship, the spacing between ribs is reduced, and high-strength low-temperature-resistant steel materials are used for key parts. In addition, the ship sailing in the ice area is usually focused on the design of breaking ice of the bow part of the ship, and the ice breaking capacity of the ship is ensured by adopting a bow blade to cut ice blocks, a bow strong structure to strongly press the ice blocks and the like. However, in the design of breaking ice at the stern of a ship, the ship is usually neglected, and the ship is not processed or is supported by a strong stern structure to resist the impact of ice cubes or crushed ice cubes. The disadvantage of the prior art is that the ice will cause damage to the stern structure and the rudder system, since the ice split by the bow will pool at the stern to strike the stern area when the ship is sailing forward, and will directly press the stern structure and the corresponding parts of the rudder system when the ship is backing. Therefore, there is a need for a design method of an ice breaking separation device for a stern area of a ship and a ship to solve the above problems. Disclosure of Invention The invention aims to provide a design method of a ship stern area ice breaking separation device and a ship, which can protect a stern structure and a rudder system, so that damage to the stern structure and the rudder system caused by ice cubes is reduced. To achieve the purpose, the invention adopts the following technical scheme: the design method of the ship stern area ice breaking and separating device comprises the following steps: a crushing ice blade is fixedly arranged on a stern sealing plate at the stern of the ship along the length direction of the ship, the crushing ice blade is positioned at the outer side of the bottom of the stern sealing plate, the broken ice skates are positioned right behind the rudder system, and one side of the broken ice skates, which is far away from the stern seal plate, is provided with broken ice blade parts; Rudder balls are fixedly arranged on rudder blades of the rudder system, extend towards the bow of the ship along the length direction of the ship, the first ends of the rudder balls are fixedly connected with the rudder blades, the second ends of the rudder balls extend out relative to the rudder blades, and the second ends of the rudder balls are spherical. In some embodiments, the crushed ice skates are streamlined in horizontal cross section. In some embodiments, the crushed ice blade portion of the crushed ice blade is flush with a stern outer plate of the watercraft. In some embodiments, an ice pressing inclined plane is designed at the lower end of one side of the ice crushing blade away from the stern sealing plate, the upper end of the ice pressing inclined plane is connected with the lower end of the ice crushing blade part, and the ice pressing inclined plane is obliquely downwards arranged along the direction from the stern to the bow of the ship. In some embodiments, the lower end surface of the ice crushing blade is provided with an ice guiding inclined surface, one end of the ice guiding inclined surface is connected with the ice pressing inclined surface, the other end of the ice guiding inclined surface is connected with the stern sealing plate, and the ice guiding inclined surface is obliquely upwards arranged along the direction from the stern to the bow of the ship. In some embodiments, the crushed ice blade is manufactured using a cast steel process, and the crushed ice blade is subjected to a heat treatment during the manufacturing process. In some embodiments, the outer circumference of the rudder ball is provided with arc-shaped steel plates to form a shell, reinforcing rib plates are arranged in the shell at intervals, and the shell is supported by the reinforcing rib plates. In some embodiments, the first end of the rudder ball is tapered, the first end of the rudder ball is inserted into the rudder blade and welded with the rudder blade. In some embodiments, the rudder ball is streamlined overall. The ship comprises a ship body, ice crushing skates