Composite tail column structure

Abstract

The utility model discloses a composite type tail column structure which comprises a propeller column and a tail hub connected to the propeller column. The propeller column comprises a tail column inner supporting frame, and the tail hub comprises a shaft hub. The thruster column further comprises a first marine composite component as a thruster column shell; the first marine composite material component is fixed outside the supporting frame in the tail column; the tail hub further comprises a second marine composite material component serving as a tail hub shell. The shaft hub is sleeved with the second marine composite material component; the second marine composite material component is fixed outside the shaft hub; the shaft hub is fixedly connected to a supporting frame in the tail column; the tail column internal supporting frame is fixedly connected to a ship shell plate. According to the utility model, the processing difficulty is reduced, and the propulsion efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ships, in particular to a composite stern column structure. Background Art

[0002] The stern post of a ship refers to the structure located in front of the propeller and connected to the main hull. It is mainly composed of the thruster post and its tail hub on the thruster post. Ship regulations require that the thruster post have a certain rigidity, which is more specifically reflected in the minimum requirements for the cross-sectional length and cross-sectional thickness of the thruster post.

[0003] like Figure 1 、 Figure 2 、 Figure 3 As shown in FIG, the existing ship stern column is composed of a propeller column 31 formed by welding steel plates and a cast steel tail hub 32 firmly welded thereto. The propeller column 31 includes a hull plate 33 and an internal frame 34 for supporting the hull plate. Figure 3 As shown, the internal construction area 35 of the thruster column has a narrow space and is inconvenient to construct.

[0004] The thruster column steel plate is thicker as per specifications. The longer the ship, the thicker the hull plating 33. For example, a 250-meter ship requires a thickness of at least 40 mm. The stern column line typically has bidirectional curvature, meaning the outer contour of the hull plating 33 needs to have bidirectional curvature, necessitating machining of the hull plating 33. Machining thick hull plating 33 requires both pyrotechnics and cold pressing to achieve the desired curvature, which is time-consuming and results in significant precision errors.

[0005] The cast steel tail hub 32 is cast in a foundry and requires a complex mold to be manufactured in advance according to the tail column line shape and internal skeleton. The manufacturing process is long and once a defect occurs, the entire casting is scrapped, resulting in a large cost loss. Utility Model Content

[0006] The technical problem to be solved by the present invention is to overcome the above-mentioned defects in the prior art and provide a composite tail pillar structure.

[0007] The utility model solves the above technical problems through the following technical solutions:

[0008] A composite stern column structure includes a thruster column and a stern hub connected to the thruster column; the thruster column includes a stern column internal support frame, and the stern hub includes a shaft hub; the thruster column also includes a first marine composite material component serving as a thruster column outer shell; the first marine composite material component is fixed to the outside of the stern column internal support frame; the stern hub also includes a second marine composite material component serving as a stern hub outer shell; the second marine composite material component is sleeved on the shaft hub; the second marine composite material component is fixed to the outside of the shaft hub; the shaft hub is fixed to the stern column internal support frame; and the stern column internal support frame is fixed to the hull plate.

[0009] Furthermore, the first ship composite material component and the second ship composite material component are both made of ship composite materials; the stern column internal support frame is made of steel, and the shaft hub is made of cast steel.

[0010] Furthermore, the first ship composite material component is composed of a plurality of first ship composite material sub-components, and the plurality of first ship composite material sub-components are respectively fixed to the internal support frame of the stern column.

[0011] Furthermore, the second ship composite material component is composed of a plurality of second ship composite material sub-components, and the plurality of second ship composite material sub-components are respectively fixed to the shaft hub.

[0012] Furthermore, the first marine composite material component is fixed to the stern column internal support frame by adhesive and bolts.

[0013] Furthermore, the second marine composite material component and the shaft hub are fixedly connected by adhesive and bolts.

[0014] Furthermore, the first marine composite material component is a 3D printed component.

[0015] Furthermore, the first marine composite material component is a composite material component formed by lathe processing.

[0016] Furthermore, the second marine composite material component is a 3D printed component.

[0017] Furthermore, the second marine composite material component is a composite material component formed by lathe processing.

[0018] The beneficial effects of the present invention are as follows: the composite stern column structure of the present invention adopts the form of an external marine composite material component plus an internal support component for the thruster column portion; the internal support component is firmly welded to the front half of the thruster column; the outer contour line shape is reflected on the outer surface of the marine composite material component, reducing the difficulty of processing; the outer contour of the marine composite material can be controlled with high precision by precision machine tools, 3D printing, etc., and the outer contour manufacturing precision is high, and various complex line shapes can be accurately realized according to hydrodynamic requirements, thereby improving propulsion efficiency; the marine composite material component can be split into multiple parts, fixed to the internal support component by adhesives and bolts, which is easy to replace, and the stern column line shape can be optimized according to actual navigation conditions. The composite stern column structure of the present invention adopts the form of an external marine composite material component plus an internal steel casting for the tail hub portion; the outer line shape is controlled with high precision by precision machine tools, 3D printing, etc., which is convenient to manufacture, reduces processing time, and is not prone to defects. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a side view of the tail pillar of the prior art.

[0020] Figure 2 for Figure 1 Schematic diagram of the CC section.

[0021] Figure 3 for Figure 1 Schematic diagram of the middle DD section.

[0022] Figure 4 It is a side view of a preferred embodiment of the utility model.

[0023] Figure 5 for Figure 4 Schematic diagram of the AA section.

[0024] Figure 6 for Figure 4 Schematic diagram of the middle BB section. DETAILED DESCRIPTION

[0025] A preferred embodiment is given below, and the present invention is described more clearly and completely in conjunction with the accompanying drawings.

[0026] like Figure 4 、 Figure 5 and Figure 6 As shown, a composite tail column structure includes a thruster column 10 and a tail hub 20 connected to the thruster column.

[0027] The thruster column 10 includes a stern column internal support frame 11 and a first marine composite material component 12 serving as an outer shell of the thruster column. The first marine composite material component is fixed to the outside of the stern column internal support frame.

[0028] The tail hub 20 includes a shaft hub 21 ; the tail hub 20 also includes a second marine composite member 22 serving as a tail hub shell; the second marine composite member 22 is sleeved on the shaft hub 21 ; and the second marine composite member 22 is fixed to the exterior of the shaft hub 21 .

[0029] The hub 21 is fixed to the stern column internal support frame 11 ; the stern column internal support frame 11 is fixed to the hull plate 13 .

[0030] The first ship composite material component 12 and the second ship composite material component 22 are both made of ship composite materials; the stern column internal support frame 11 is made of steel, and the hub 21 is made of cast steel.

[0031] The first ship composite material component 12 is composed of a plurality of first ship composite material sub-components, and the plurality of first ship composite material sub-components are respectively fixed to the stern column internal support frame 11 .

[0032] The second shipbuilding composite material component 22 is composed of a plurality of second shipbuilding composite material sub-components, and the plurality of second shipbuilding composite material sub-components are respectively fixed to the hub 21 .

[0033] The first marine composite material component 12 is fixed to the stern column internal support frame 11 by adhesive and bolts.

[0034] The second marine composite material component 22 and the hub 21 are fixed together by adhesive and bolts.

[0035] In other embodiments, the first marine composite material component and the stern column internal support frame, and the second marine composite material component and the shaft hub may also be connected by riveting or other means.

[0036] The first ship composite material component 12 is a 3D printed component. The first ship composite material component can be made by 3D printing.

[0037] In other embodiments, the first ship composite material component is a composite material component formed by lathe processing. The first ship composite material component can be processed by a precision machine tool.

[0038] The second ship composite material component 22 is a 3D printed component. The second ship composite material component can be made by 3D printing.

[0039] In other embodiments, the second ship composite material component is a composite material component formed by lathe processing. The second ship composite material component can be processed by precision machine tools.

[0040] The outer contours of the first marine composite component and the second marine composite component can be controlled with high precision by precision machine tools, 3D printing, etc., and can accurately realize various complex line shapes (such as asymmetric line shapes) according to hydrodynamic requirements. Small appendages such as vortex-eliminating fins can also be added to improve propulsion efficiency.

[0041] The composite stern pillar structure of the present invention adopts the form of an external marine composite material and an internal supporting member; the marine composite material member can be split into multiple parts and fixed to the internal supporting member by adhesive and bolts. It is easy to install and replace, and the stern pillar line shape can be optimized according to actual navigation conditions.

[0042] Compared with the traditional tail pillar, the utility model has many advantages.

[0043] The traditional sternpost is a completely steel structure. Due to the narrowing line of the ship end, the internal space of the sternpost is small, making construction inconvenient. At the same time, the thickness of the hull plate is relatively thick according to the specifications, and the outer contour line is difficult to process. The design line required here usually has a two-way curvature, and the processing time is long and the precision error is large through pyrotechnics, cold pressing and other processing processes.

[0044] The composite stern column structure of the present invention adopts the form of an external marine composite material component plus an internal support component for the thruster column portion; the internal support component is firmly welded to the front half of the thruster column; the outer contour line type is reflected on the outer surface of the marine composite material component, reducing the difficulty of processing; the outer contour of the marine composite material can be controlled with high precision by precision machine tools, 3D printing, etc., and the outer contour manufacturing accuracy is high, and various complex line types can be accurately realized according to hydrodynamic requirements, thereby improving propulsion efficiency; the marine composite material component can be disassembled into multiple parts and fixed to the internal support component by adhesives and bolts, which is easy to replace, and the stern column line type can be optimized according to actual navigation conditions.

[0045] The composite stern pillar structure of the utility model adopts the form of an external marine composite material component and an internal steel casting for the stern hub portion; the external linear shape is controlled with high precision by precision machine tools, 3D printing, etc., which is convenient to manufacture, reduces processing time, and is not prone to defects.

[0046] Although specific embodiments of the present invention have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of protection 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, and such changes and modifications are intended to fall within the scope of protection of the present invention.

Claims

1. A composite tail column structure, comprising a propeller column and a tail hub connected to the propeller column; the propeller column comprises an internal tail column support frame, and the tail hub comprises an axle hub; characterized in that: The thruster column also includes a first marine composite material component serving as the outer shell of the thruster column; the first marine composite material component is fixed to the outside of the internal support frame of the stern column; the stern hub also includes a second marine composite material component serving as the outer shell of the stern hub; the second marine composite material component is sleeved on the shaft hub; the second marine composite material component is fixed to the outside of the shaft hub; the shaft hub is fixed to the internal support frame of the stern column; and the internal support frame of the stern column is fixed to the hull plate.

2. The composite tail pillar structure according to claim 1, characterized in that: The first ship composite material component and the second ship composite material component are both made of ship composite materials; the internal support frame of the stern column is made of steel, and the hub is made of cast steel.

3. The composite tail pillar structure according to claim 1, wherein: The first ship composite material component is composed of a plurality of first ship composite material sub-components, and the plurality of first ship composite material sub-components are respectively fixed to the internal support frame of the stern column.

4. The composite tail pillar structure according to claim 1, wherein: The second ship composite material component is composed of a plurality of second ship composite material sub-components, and the plurality of second ship composite material sub-components are respectively fixed to the shaft hub.

5. The composite tail pillar structure according to claim 1, wherein: The first marine composite material component is fixed to the stern column internal support frame by adhesive and bolts.

6. The composite tail pillar structure according to claim 1, wherein: The second marine composite material component and the shaft hub are fixedly connected by adhesive and bolts.

7. The composite tail pillar structure according to claim 1, wherein: The first marine composite component is a 3D printed component.

8. The composite tail pillar structure according to claim 1, wherein: The first marine composite material component is a composite material component formed by lathe processing.

9. The composite tail pillar structure according to claim 1, wherein: The second marine composite component is a 3D printed component.

10. The composite tail pillar structure according to claim 1, wherein: The second marine composite material component is a composite material component formed by lathe processing.

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