Tail type suitable for passenger ship and cargo ship

Abstract

The tail type suitable for the passenger and cargo ship is arranged on the passenger and cargo ship, the passenger and cargo ship is provided with a propeller, and a tail sealing plate is arranged at the tail of the passenger and cargo ship; the propeller is a pod propeller; the tail sealing plate is in an inclined plate shape, and the upper end of the tail sealing plate is located on the rear side of the lower end of the tail sealing plate. Course stabilizing fins are arranged at the bottom of the ship and are arranged in front of the pod propellers; and a fillet structure is arranged at the joint of the tail sealing plate and the side outer plate. When the ship sails, the flow field is better, the resistance is smaller, and the ship is suitable for more complex navigation areas and navigation channels.

Description

Technical Field

[0001] The present invention relates to the technical field of ships, and in particular to a stern type suitable for passenger and cargo ships. Background Art

[0002] A passenger and cargo ship is a ship specially used to transport passengers and cargo. Its design mainly considers the needs of cargo transportation and passenger accommodation on board. It is a type of ship that combines cargo transportation and tourism. The line design and propulsion type of passenger and cargo ships are important links in ship design. They are directly related to the performance and safety of the ship, especially the stern line design. After the main dimensions are determined, in addition to maintaining low resistance performance, it is also necessary to meet the layout requirements of the specific propulsion system and the needs of beautiful appearance.

[0003] For medium-speed ships (Froude number of about 0.2) such as passenger and cargo ships, the existing tail line design features are usually: a small tail fin and a shaft bracket are set, a conventional adjustable pitch propeller propulsion type is adopted, a straight tail cover plate is adopted, and a square tail is adopted above the waterline.

[0004] The defects and shortcomings of this technology are: the design of the small tail fin increases the wet surface area, which leads to an increase in friction resistance and total resistance; conventional controllable pitch propellers are still lacking in maneuverability and flexibility when sailing in multiple sea areas; the straight tail plate has greater resistance when reversing and it is not easy to maintain the course; the square tail shape above the waterline is slightly dull and not beautiful enough. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the above-mentioned defects in the prior art and provide a stern type suitable for passenger and cargo ships.

[0006] The present invention solves the above technical problems through the following technical solutions:

[0007] A stern type suitable for a passenger and cargo ship is arranged on the passenger and cargo ship, the passenger and cargo ship is provided with a propeller, and a stern sealing plate is provided at the stern of the passenger and cargo ship; the propeller is a pod propeller; the stern sealing plate is an inclined plate, and the upper end of the stern sealing plate is located at the rear side of the lower end of the stern sealing plate; a heading stabilizing fin is provided on the bottom of the ship, and the heading stabilizing fin is arranged in front of the pod propeller; a chamfered structure is provided at the connection between the stern sealing plate and the side outer plate.

[0008] Furthermore, the passenger and cargo ship is not provided with a shaft support for supporting the propeller rotating shaft.

[0009] Furthermore, passenger and cargo ships are not provided with rudders.

[0010] Furthermore, passenger and cargo ships are not provided with small tail fins.

[0011] Further, the rounded corner structure is located above the waterline.

[0012] Furthermore, a rounded corner structure is provided at the connection between the side outer plate and the stern cover plate on the left side.

[0013] Furthermore, a rounded corner structure is provided at the connection between the side outer plate and the stern cover plate on the right side.

[0014] Furthermore, a motor propulsion room for fixing the pod propeller is provided at the rear of the passenger and cargo ship.

[0015] Furthermore, there are two pod thrusters, which are respectively arranged on the left and right sides of the centerline of the ship.

[0016] Furthermore, there are two motor propulsion rooms, which are respectively located on both sides of the centerline of the ship; two pod propellers are respectively fixed in the two motor propulsion rooms.

[0017] The beneficial effects of the present invention are as follows: the present invention changes the traditional tail type using propellers to a type adapted to pod propulsion, which has a better flow field and less resistance during navigation, and is suitable for more complex navigation areas and waterways; the vibration and noise of the pod propulsion are also well controlled, which is very suitable for ships with high requirements for comfort. In the present invention, the inclined tail seal plate structure can reduce resistance, optimize maneuverability and stability when sailing in reverse compared to the conventional vertical design; the addition of a heading stabilizing fin at the tail of the ship can improve the heading stability; the connection between the tail seal plate and the side outer plate adopts a rounded corner structure above the waterline, which further beautifies the appearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a preferred embodiment of the present invention.

[0019] Figure 2 for Figure 1 Center A view. DETAILED DESCRIPTION

[0020] A preferred embodiment is given below, and the present invention is described more clearly and completely in conjunction with the accompanying drawings.

[0021] like Figure 1 and Figure 2 As shown, a tail type suitable for a passenger and cargo ship is provided in the passenger and cargo ship, and the passenger and cargo ship is provided with a propeller, and the propeller is a pod propeller 10. The passenger and cargo ship is not provided with an axis bracket for supporting the propeller rotation axis. The passenger and cargo ship is not provided with a rudder.

[0022] A stern sealing plate 20 is provided at the stern of the passenger and cargo ship; the stern sealing plate 20 is in the shape of an inclined plate, and the upper end of the stern sealing plate is located at the rear side of the lower end of the stern sealing plate.

[0023] The bottom of the ship is provided with a heading stabilizing fin 30, which is arranged in front of the pod propeller 10. The passenger and cargo ship is not provided with a small tail fin.

[0024] A rounded corner structure 22 is provided at the connection between the stern seal plate 20 and the side outer plate 21. The rounded corner structure is located above the waterline.

[0025] A chamfered corner structure is provided at the connection between the side outer plate on the left side and the stern sealing plate; a chamfered corner structure is provided at the connection between the side outer plate on the right side and the stern sealing plate.

[0026] A motor propulsion room 11 for fixing the pod propeller is provided at the rear of the passenger and cargo ship.

[0027] There are two pod propellers 10, which are respectively arranged on the left and right sides of the ship's centerline.

[0028] There are two motor propulsion rooms 11, which are respectively located on both sides of the centerline of the ship; two pod propellers are respectively fixed in the two motor propulsion rooms.

[0029] It should be noted that in the field of ship technology, the bow is the front and the stern is the rear.

[0030] In the present invention, a pod propeller is used to optimize the traditional mode of a small tail fin plus a shaft bracket plus a pitch-adjustable propeller plus a rudder. The present invention removes the small tail fin, the shaft bracket and the rudder, has smaller resistance and a more uniform inflow field.

[0031] A pod thruster is a propeller installed in the pod part of a ship. It controls the course and speed of the ship by changing the shape and position of the pod. It usually consists of a propeller body, a drive mechanism and a control device. The characteristic of a pod thruster is that the shape and position of the pod can be adjusted to adapt to different navigation conditions and needs. For example, when it is necessary to increase the speed and efficiency of the ship, the position and shape of the pod can be adjusted to make the propeller play a better role; when it is necessary to improve the maneuverability and stability of the ship, the shape and position of the pod can be adjusted to improve the navigation performance of the ship. The drive mechanism of the pod thruster usually includes a motor, a hydraulic motor, etc., which can control the rise and fall of the pod. The control device includes a remote control, a sensor, etc., which can monitor and control the position and status of the pod in real time. Pod thrusters are widely used in ships, marine engineering, ship engineering and other fields, and are of great significance to improving the navigation performance, safety and efficiency of ships.

[0032] Under complex and changeable navigation conditions, it is necessary to select a navigation area suitable for the pod propulsion system to cope with various navigation situations.

[0033] In the present invention, the tail sealing plate is designed to be inclined.

[0034] Making the stern seal plate inclined may bring the following benefits for reverse sailing: improving the maneuverability of the ship. The inclined seal plate can improve the maneuverability of the ship, making the ship more stable and easier to control during reverse sailing; reducing water flow resistance. The inclined seal plate can reduce the impact of water flow on the ship, thereby reducing the resistance of the ship during reverse sailing and increasing the speed and efficiency of the ship; improving the heading stability of the ship. The inclined seal plate can improve the heading stability of the ship, making it easier for the ship to maintain its heading during reverse sailing and reducing the possibility of deviation.

[0035] In the present invention, a heading stabilizing fin is added to the tail to match the entire tail shape.

[0036] The main function of the heading stabilizing fin is to improve the heading stability of the ship. The degree of improvement is roughly proportional to the area of ​​the dock. In addition, when the ship is docked, it is convenient to set up dock piers.

[0037] In the present invention, the connection between the stern cover plate and the side outer plate adopts a rounded structure above the waterline to increase the aesthetics.

[0038] In the ship model rapidity test, the test design speed waveform shows that the tail waveform is relatively stable, which is beneficial to the reduction of the tail wave resistance. According to the test results, the resistance is at a relatively low level among similar ship models.

[0039] The present invention changes the traditional tail type using a propeller into a type adapted to pod propulsion. When sailing, the flow field is better, the resistance is smaller, and it is suitable for more complex navigation areas and waterways. The vibration and noise of the pod propulsion are also well controlled, which is very suitable for ships with high requirements for comfort.

[0040] In the present invention, the inclined stern plate structure can reduce resistance and optimize maneuverability and stability when sailing astern compared to the conventional vertical design; the addition of a heading stabilizing fin at the stern of the ship can improve the heading stability; the connection between the stern plate and the side outer plate adopts a rounded corner structure above the waterline, so that the appearance is further beautified.

[0041] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that this is only for illustration and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A tail type suitable for a passenger and cargo ship, which is provided on the passenger and cargo ship, the passenger and cargo ship is provided with a propeller, and the tail of the passenger and cargo ship is provided with a tail sealing plate; characterized in that: The propeller is a pod propeller; the tail seal plate is an inclined plate, and the upper end of the tail seal plate is located behind the lower end of the tail seal plate; a heading stabilizing fin is provided on the bottom of the ship, and the heading stabilizing fin is located in front of the pod propeller; a chamfered structure is provided at the connection between the tail seal plate and the side outer plate.

2. The stern type suitable for passenger and cargo ships as claimed in claim 1, characterized in that: Passenger and cargo ships are not provided with shaft brackets for supporting the propeller rotating shaft.

3. The stern type suitable for passenger and cargo ships as claimed in claim 1, characterized in that: Passenger and cargo ships do not have rudders.

4. The stern type suitable for passenger and cargo ships as claimed in claim 1, characterized in that: Passenger and cargo ships are not equipped with small tail fins.

5. The stern type suitable for passenger and cargo ships as claimed in claim 1, characterized in that: The rounded structure is located above the waterline.

6. The stern type suitable for passenger and cargo ships as claimed in claim 5, characterized in that: A rounded corner structure is provided at the connection between the side outer plate and the stern cover plate on the left side.

7. The stern type suitable for passenger and cargo ships as claimed in claim 5, characterized in that: A rounded corner structure is provided at the connection between the side outer plate and the stern cover plate on the right side.

8. The stern type suitable for passenger and cargo ships as claimed in claim 1, characterized in that: A motor propulsion room for fixing the pod propeller is provided at the stern of the passenger and cargo ship.

9. The stern type suitable for passenger and cargo ships as claimed in claim 8, characterized in that: There are two pod thrusters, which are respectively arranged on the left and right sides of the centerline of the ship.

10. The stern type suitable for passenger and cargo ships as claimed in claim 9, characterized in that: There are two motor propulsion rooms, which are located on both sides of the centerline of the ship; two pod propellers are fixed in the two motor propulsion rooms respectively.

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