Ship rudder system structure and method for assembling ship rudder system structure

Abstract

The application relates to the technical field of ship manufacturing, and discloses a ship rudder system structure and a ship rudder system structure assembling method. The structure comprises a rudder blade, a rudder sleeve, a rudder rod and two sealing plates; the rudder blade has a slotted surface and two opposite working surfaces, the slotted surface is concavely provided with a notch groove, the notch groove is communicated with two avoidance half grooves, the two avoidance half grooves are respectively communicated with the two working surfaces, the avoidance half groove is spaced apart from the end of the notch groove and is uniformly provided with a plurality of lug plates, the lug plate is penetrated with a first through hole; each sealing plate is installed in one avoidance half groove, the edge of the sealing plate is penetrated with a second through hole; a through-hole bolt is penetrated through the second through hole and is screwed in the first through hole, the bolt head of the through-hole bolt is penetrated with a bolt through hole, a flexible wire is penetrated in the bolt through hole, and the two adjacent through-hole bolts are fixedly connected through the flexible wire; the rudder sleeve is inserted in the notch groove; and the rudder rod is penetrated through the rudder sleeve and a positioning pipe in the notch groove. The structure improves the connection mode of the sealing plate and the rudder blade, and reduces the dismounting difficulty of the sealing plate.

Description

Technical Field

[0001] This invention relates to the field of shipbuilding technology, and in particular to ship rudder system structures and ship rudder system assembly methods. Background Technology

[0002] The rudder sleeve and rudder blade of a ship are equipped with two end plates. When the rudder blade arrives at the shipyard, the end plates are not installed on it. At this time, there are two notches on the rudder blade, which serve as channels for the rudder blade to pass through the rudder sleeve from the side of the ship. When the rudder sleeve and rudder blade axis are aligned, the rudder stock is hoisted so that it passes through the tapered holes on the rudder sleeve and rudder blade from top to bottom. After the hydraulic nuts on the rudder stock are pressed in, the rudder blade is inspected for zero position, and then the end plates are welded. The end plates are connected to the rudder blade by butt welding, with the rudder sleeve wrapped between the two end plates. Therefore, after any end plate is welded, the narrow gap between the end plate and the rudder sleeve makes it impossible to repair any damage to the paint inside the end plate. Furthermore, since the rudder sleeve bearing requires seawater lubrication, the end plates need to be immersed in seawater for extended periods.

[0003] This leads to a problem: the paint inside the sealing plate is easily damaged and cannot be repaired. When it comes into contact with seawater, it will inevitably cause severe corrosion, causing the sealing plate to detach from the rudder blade and resulting in a major safety accident. Summary of the Invention

[0004] The purpose of this invention is to provide a ship rudder system structure and a ship rudder system assembly method, improve the connection between the sealing plate and the rudder blade, and avoid the situation where the inside of the sealing plate cannot be repainted.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] The ship's rudder system structure includes a rudder blade, a bolt with holes, a rudder sleeve, a rudder stock, and two end plates. The rudder blade has a slotted surface and two opposing working surfaces. The slotted surface has a notch, which connects to two clearance slots. One clearance slot is connected to one working surface, and the other clearance slot is connected to the other working surface. A positioning tube is fixedly installed in the notch. Several lugs are evenly distributed along the edge of the clearance slot opposite to the notch, and each lug has a through hole. Each end plate is installed in one clearance slot. The edge of the sealing plate has a second through hole, and the number of the second through holes is the same as the number of the first through holes and they correspond one-to-one; the number of the perforated bolts is the same as the number of the first through holes and they correspond one-to-one. Each perforated bolt passes through a second through hole and is screwed into a first through hole. The screw head of the perforated bolt passes through a bolt through hole, and a tough wire is inserted into the bolt through hole. Two adjacent perforated bolts are fixedly connected by the tough wire; the rudder sleeve is inserted into the notch groove; the rudder rod passes through the rudder sleeve and the positioning tube and is screwed into the hydraulic nut.

[0007] As a preferred technical solution for the ship's rudder system structure, the sealing plate has a protective surface and a limiting surface, the limiting surfaces of the two sealing plates are arranged opposite each other, and the protective surface is flush with the working surface; a limiting plate perpendicular to the limiting surface is fixed to the limiting surface, and the two limiting plates are spliced ​​together to form an avoidance through hole, through which the rudder rod passes.

[0008] As a preferred technical solution for the ship's rudder system structure, the plane where the lug plate is located is perpendicular to the length direction of the clearance half groove, and the plate surface of the lug plate opposite to the notch groove is in contact with the limiting surface.

[0009] As a preferred technical solution for the ship's rudder system structure, the sidewall of the sealing plate and the groove wall of the avoidance half groove are spaced apart.

[0010] As a preferred technical solution for the ship's rudder system structure, the height direction of the avoidance half-groove is perpendicular to the height direction of the notch groove, and the two avoidance half-groos are symmetrically arranged about the notch groove.

[0011] As a preferred technical solution for the ship's rudder system structure, the positioning tube has a through-hole, and the length direction of the through-hole is the same as the height direction of the notch.

[0012] As a preferred technical solution for the ship's rudder system structure, the second through hole is an oval through hole.

[0013] As a preferred technical solution for the ship's rudder system structure, the rudder sleeve includes a bearing and a rudder sleeve body coaxially sleeved on the outside of the bearing, and the rudder stile passes through the rudder sleeve body and rotates with the bearing.

[0014] As a preferred technical solution for ship rudder system structure, the tough wire includes a stainless steel fuse.

[0015] A method for assembling a ship's rudder system, applied to the aforementioned ship rudder system structure, includes the following steps:

[0016] S10: Move the rudder blade directly below the rudder sleeve until the positioning tube is directly opposite the rudder sleeve;

[0017] S20: Pass the rudder stock through the rudder sleeve and the positioning tube from top to bottom, and then screw the hydraulic nut to the lower end of the rudder stock;

[0018] S30: Pre-assemble the sealing plate into the clearance half-groove, record the position of each second through hole on the sealing plate, and then remove the sealing plate;

[0019] S40: First, determine the position of the first through hole according to the position of the second through hole, and then weld the corresponding ear plate on the inner wall of the clearance half groove according to the position of the first through hole;

[0020] S50: Install the sealing plate into the clearance half-groove, so that the bolt with holes passes through the sealing plate and is screwed to the ear plate;

[0021] S60: Use the tough wire to lock the connection between every two adjacent bolts with holes.

[0022] The beneficial effects of this invention are:

[0023] This ship's rudder system structure, with its two clearance half-slots connected by a notch, optimizes the rudder blade layout, reduces the probability of positional conflicts between the rudder blade and the rudder sleeve, improves the assembly efficiency of the rudder system, and also reduces the difficulty of disassembling and assembling the sealing plate. The inclusion of inner lugs in the clearance half-slots, combined with the design of a second through-hole on the sealing plate, allows for a detachable connection between the sealing plate and the rudder blade using bolts with holes. This design improves the connection between the sealing plate and the rudder blade, further reducing the difficulty of disassembling and assembling the sealing plate, preventing situations where the inside of the sealing plate cannot be repainted, mitigating the adverse effects of welding damaging the paint on the sealing plate, and solving the corrosion problem caused by seawater to the ship's rudder system structure. The design of the rudder stock passing through the rudder sleeve and positioning tube and being screwed into the hydraulic nut enables a rotatable connection between the rudder sleeve and the rudder blade, ensuring that the rudder blade can complete its predetermined movements relative to the rudder sleeve. The design of securing two adjacent perforated bolts with a flexible wire ensures the stability of the bolt connection, reduces the risk of accidental loosening, and guarantees the long-term stable operation of the ship's rudder system. The constraint of the flexible wire passing through the bolt hole further reduces the risk of the wire accidentally detaching from the bolt. The ship's rudder system structure offers advantages such as easy assembly and disassembly, strong applicability, and short maintenance cycles, contributing to improved maintenance efficiency and reduced workload for operators.

[0024] This new method for assembling the ship's rudder system changes the timing of the lug assembly within the clearance slot, reducing the difficulty of assembling the end plate on the rudder blade. This improves the efficiency of rudder system assembly and disassembly, reducing the workload for operators. The bolted connection replaces conventional welding, making the rudder system assembly method simple to install, highly versatile, and shortening the assembly and disassembly cycle of the end plate on the rudder blade. Furthermore, the rudder system assembled using this method offers convenient disassembly, inspection, and maintenance, resulting in high maintenance efficiency and low maintenance costs. Attached Figure Description

[0025] Figure 1 This is a cross-sectional view of the ship's rudder system structure provided in an embodiment of the present invention;

[0026] Figure 2 yes Figure 1 Cross-sectional view of plane AA;

[0027] Figure 3 This is a cross-sectional view of the rudder blade provided in an embodiment of the present invention;

[0028] Figure 4 This is a cross-sectional view of the rudder blade and lugs provided in an embodiment of the present invention;

[0029] Figure 5 This is a cross-sectional view of the rudder blade, lug plate, and sealing plate provided in an embodiment of the present invention;

[0030] Figure 6This is a partial schematic diagram of the rudder blade, lug, sealing plate, and bolt with holes provided in an embodiment of the present invention;

[0031] Figure 7 This is a cross-sectional view of the rudder sleeve provided in an embodiment of the present invention;

[0032] Figure 8 This is a schematic diagram of the ear plate structure provided in an embodiment of the present invention;

[0033] Figure 9 This is a front view of the sealing plate provided in an embodiment of the present invention;

[0034] Figure 10 This is a side view of the sealing plate provided in an embodiment of the present invention.

[0035] In the picture:

[0036] 1. Rudder blade; 2. Sealing plate; 3. Ear plate; 4. Positioning tube; 5. Rudder ball; 6. Rudder sleeve body; 7. Rudder sleeve; 8. Bearing; 9. Rudder stock; 10. Bolt with hole; 11. Tough wire; 12. Hydraulic nut; 13. Notch groove; 14. Second through hole; 15. First through hole; 16. Bolt through hole. Detailed Implementation

[0037] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Furthermore, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0040] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0041] like Figures 1 to 10 As shown, this embodiment provides a ship's rudder system structure, including a rudder blade 1, a bolt with holes 10, a rudder sleeve 7, a rudder stock 9, and two sealing plates 2. The rudder blade 1 has a slotted surface and two opposing working surfaces. The slotted surface has a notch 13 recessed in it, which connects to two clearance half-grooves. One clearance half-grooves is connected to one working surface, and the other clearance half-grooves are connected to the other working surface. A positioning tube 4 is fixedly installed in the notch 13. Several ear plates 3 are evenly distributed at intervals along the edge of the clearance half-grooves away from the notch 13. A first through hole 15 is passed through the ear plates 3. Each sealing plate 2 is installed on one clearance half-grooves. Inside the groove, the edge of the sealing plate 2 has a second through hole 14, which is the same number as the first through hole 15 and corresponds to it one by one; the number of bolts with holes 10 is the same as the number of bolts with holes 15 and corresponds to it one by one. Each bolt with holes 10 passes through a second through hole 14 and is screwed into a first through hole 15. The bolt head of the bolt with holes 10 passes through a bolt through hole 16, and a tough wire 11 is inserted in the bolt through hole 16. Two adjacent bolts with holes 10 are fixedly connected by the tough wire 11; the rudder sleeve 7 is inserted into the notch groove 13; the rudder rod 9 passes through the rudder sleeve 7 and the positioning tube 4 and is screwed into the hydraulic nut 12.

[0042] The ship's rudder system structure, with its notch slot 13 connecting two clearance half-slots, optimizes the layout of the rudder blade 1, reduces the probability of positional conflict between the rudder blade 1 and the rudder sleeve 7, improves the assembly efficiency of the ship's rudder system structure, and also reduces the difficulty of disassembling and assembling the sealing plate 2. The inner lug plate 3 of the clearance half-slot, combined with the design of the second through hole 14 on the sealing plate 2, allows for a detachable connection between the sealing plate 2 and the rudder blade 1 using the perforated bolt 10. This design improves the connection between the sealing plate 2 and the rudder blade 1, further reducing the difficulty of disassembling and assembling the sealing plate 2, avoiding the situation where the inside of the sealing plate 2 cannot be repainted, compensating for the adverse effects caused by welding damaging the paint on the sealing plate 2, and solving the corrosion problem caused by seawater to the ship's rudder system structure. The design of the rudder stock 9 passing through the rudder sleeve 7 and the positioning tube 4 and being screwed to the hydraulic nut 12 enables the rotational connection between the rudder sleeve 7 and the rudder blade 1, ensuring that the rudder blade 1 can complete the predetermined action relative to the rudder sleeve 7. The design of two adjacent perforated bolts 10 being fixedly connected by a flexible wire 11 ensures the connection stability of the perforated bolts 10, reduces the risk of the perforated bolts 10 loosening due to accidents, and ensures the long-term stable operation of the ship's rudder system structure. The constraint of the flexible wire 11 passing through the bolt through hole 16 further reduces the risk of the flexible wire 11 accidentally detaching from the perforated bolt 10. The ship's rudder system structure has the advantages of convenient assembly and disassembly, strong applicability, and short maintenance cycle, which helps to improve maintenance efficiency and reduce the workload of operators.

[0043] For example, a rudder ball 5 is also connected to the rudder blade 1.

[0044] In this embodiment, the sealing plate 2 has a protective surface and a limiting surface, the limiting surfaces of the two sealing plates 2 are arranged opposite each other, and the protective surface is flush with the working surface; a limiting plate perpendicular to the limiting surface is fixed to the limiting surface, and the two limiting plates are spliced ​​together to form an avoidance through hole, through which the rudder rod 9 passes.

[0045] The design of the protective surface and the limiting surface simplifies the structure of the sealing plate 2 and reduces the difficulty of its installation. The flush design of the protective surface and the working surface enhances the aesthetics of the ship's rudder system and optimizes the stress on the rudder blade 1. The design of the two limiting plates splicing together to form an avoidance through hole not only achieves the purpose of limiting the rudder stock 9, but also reduces the assembly difficulty of the sealing plate 2 in the avoidance half-groove by splicing the two limiting plates together, thereby improving the assembly efficiency of the ship's rudder system.

[0046] Furthermore, the plane containing the lug plate 3 is perpendicular to the length direction of the clearance half-groove, and the surface of the lug plate 3 facing away from the notch slot 13 is in contact with the limiting surface. This design optimizes the arrangement of the lug plate 3 and reduces the difficulty of its installation. Simultaneously, the constraint that the surface of the lug plate 3 facing away from the notch slot 13 is in contact with the limiting surface enables the lug plate 3 to limit the position of the sealing plate 2, reducing the risk of the sealing plate 2 shifting due to accidents and ensuring the stable operation of the ship's rudder system structure.

[0047] Specifically, the ear plate 3 is lap-welded to the rudder blade 1. Lap-welding has the advantages of high welding strength, wide applicability, and fast welding speed.

[0048] Furthermore, the sidewall of the sealing plate 2 is spaced apart from the wall of the clearance half-slot. This spaced-apart design prevents the sealing plate 2 from compressing the wall of the clearance half-slot due to temperature changes, thereby effectively reducing the risk of damage to the walls of both the sealing plate 2 and the clearance half-slot, and reducing the maintenance frequency of the ship's rudder system structure.

[0049] Specifically, along the length of the sealing plate 2, the distance between the edge of the sealing plate 2 and the wall of the avoidance half-groove is 1 mm. By precisely controlling the distance, the squeezing between the sealing plate 2 and the wall of the avoidance half-groove is avoided, and the scouring frequency of seawater on the rudder sleeve 7 is effectively reduced.

[0050] In this embodiment, the height direction of the avoidance half-groove is perpendicular to the height direction of the notch groove 13, and the two avoidance half-grooves are symmetrically arranged about the notch groove 13. The above layout further optimizes the structure of the notch groove 13 and the avoidance half-groove, optimizes the layout of the rudder blade 1, and reduces the processing difficulty and production cost of the rudder blade 1.

[0051] For example, the positioning tube 4 has a conical hole through it, and the length direction of the conical hole is the same as the height direction of the notch groove 13. The above design limits the arrangement of the rudder stock 9 and the rudder sleeve 7 in the notch groove 13, optimizes the relative position of the rudder stock 9 and the rudder sleeve 7 with the rudder blade 1, and reduces the space required for the ship's rudder system structure.

[0052] In this embodiment, the second through hole 14 is an oval through hole. The oval through hole design reduces the difficulty of the bolt 10 passing through the sealing plate 2, and provides an error margin for the assembly of the sealing plate 2 on the rudder blade 1. This reduces the precision required for the assembly of the rudder blade 1, reduces the workload of the operator, and improves the efficiency of disassembling and assembling the sealing plate 2 on the rudder blade 1.

[0053] For example, the rudder sleeve 7 includes a bearing 8 and a rudder sleeve body 6 coaxially sleeved on the outside of the bearing 8. The rudder stalk 9 passes through the rudder sleeve body 6 and rotatably engages with the bearing 8. The design of the rudder sleeve body 6 coaxially sleeved on the bearing 8 defines the structure of the rudder sleeve 7 and simplifies its layout. The limitation of the rudder stalk 9 rotatably engaging with the bearing 8 enables the rudder sleeve 7 to rotate smoothly around the rudder stalk 9. Specifically, the bearing 8 is a Sailong bearing.

[0054] In this embodiment, the tough wire 11 includes a stainless steel fuse. Stainless steel fuses have the advantages of high toughness, high hardness, high connection stability, and low production cost, which helps to ensure that the relative positions of two adjacent bolts 10 with holes remain unchanged.

[0055] Specifically, the lug plate 3 is made of stainless steel with a thickness of 20 mm; the bolt 10 with holes is also made of stainless steel. Stainless steel has the advantages of wear resistance, low-temperature resistance, and corrosion resistance, which ensures the long-term stable operation of each component and helps to reduce the maintenance frequency of the ship's rudder system.

[0056] This embodiment also provides a method for assembling a ship's rudder system structure, applied to the aforementioned ship rudder system structure, including the following steps:

[0057] Step 1: Move the rudder blade 1 directly below the rudder sleeve 7 until the positioning tube 4 is directly opposite the rudder sleeve 7.

[0058] Step 2: Pass the rudder stock 9 through the rudder sleeve 7 and the positioning tube 4 from top to bottom, and then screw the hydraulic nut 12 onto the lower end of the rudder stock 9.

[0059] Step 3: Pre-assemble the sealing plate 2 into the clearance half-groove, record the position of each second through hole 14 on the sealing plate 2, and then take out the sealing plate 2.

[0060] Step 4: First, determine the position of the corresponding first through hole 15 based on the position of the second through hole 14, and then weld the corresponding ear plate 3 on the inner wall of the clearance half groove according to the position of the first through hole 15.

[0061] Step 5: Install the sealing plate 2 into the clearance half groove, so that the bolt with hole 10 passes through the sealing plate 2 and is screwed to the ear plate 3.

[0062] Step 6: Use the flexible wire 11 to lock the connection between every two adjacent perforated bolts 10.

[0063] This new method for assembling the ship's rudder system changes the timing of assembling the lug 3 within the clearance half-groove, reducing the difficulty of assembling the sealing plate 2 on the rudder blade 1. This improves the efficiency of disassembly and assembly of the ship's rudder system and reduces the workload of operators. The bolted connection replaces the conventional welding method, making the assembly method simple, versatile, and shortening the disassembly and assembly cycle of the sealing plate 2 on the rudder blade 1. Furthermore, the rudder system structure using this method offers convenient disassembly, inspection, and maintenance, resulting in high maintenance efficiency and low maintenance costs.

[0064] In this embodiment, the rudder blade 1 moves from the side of the hull to directly below the rudder sleeve 7. By adjusting the posture of the rudder blade 1, the axial centers of the positioning tube 4 and the rudder sleeve 7 can be made to coincide.

[0065] For example, the rudder stock 9 is installed on the rudder blade 1 and the rudder sleeve 7 by means of hoisting. After the hydraulic nut 12 is locked to the rudder stock 9, the posture of the rudder blade 1 is fixed.

[0066] In this embodiment, when pre-assembling the sealing plate 2, it is necessary to trim the sealing plate 2 to make its shape the same as the clearance half groove; after removing the sealing plate 2, it is necessary to apply finishing paint to the trimmed sealing plate 2.

[0067] For example, the corresponding positions of the second through hole 14 and the first through hole 15 are determined by aligning the axis of the first through hole 15 with the axis center of the second through hole 14; after the ear plate 3 is welded to the wall of the clearance half groove, the ear plate 3 and the butt weld position of the ear plate 3 need to be coated with finishing paint.

[0068] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A ship's rudder system structure, characterized in that, include: The rudder blade (1) has a slotted surface and two opposing working surfaces. The slotted surface is recessed with a notch (13). The notch (13) connects to two clearance half-grooves. One clearance half-grooves is connected to one of the working surfaces, and the other clearance half-grooves is connected to the other working surface. A positioning tube (4) is fixedly installed in the notch (13). Several ear plates (3) are evenly distributed on the edge of the clearance half-grooves away from the notch (13). A first through hole (15) is passed through the ear plate (3). Two sealing plates (2), each of the sealing plates (2) is installed in one of the clearance half grooves, and the edge of the sealing plate (2) is provided with a second through hole (14), the number of the second through holes (14) is the same as the number of the first through holes (15) and they correspond one to one; The number of the bolts with holes (10) is the same as the number of the first through holes (15) and they correspond one-to-one. Each bolt with holes (10) passes through a second through hole (14) and is screwed into a first through hole (15). The head of the bolt with holes (10) is connected to a bolt through hole (16). A tough wire (11) is inserted in the bolt through hole (16). Two adjacent bolts with holes (10) are fixedly connected by the tough wire (11). The rudder sleeve (7) is inserted into the notch (13); The rudder stock (9) passes through the rudder sleeve (7) and the positioning tube (4) and is screwed to the hydraulic nut (12); The sealing plate (2) has a protective surface and a limiting surface. The limiting surfaces of the two sealing plates (2) are arranged opposite to each other. The protective surface is flush with the working surface. A limiting plate perpendicular to the limiting surface is fixed to the limiting surface. The two limiting plates are spliced ​​together to form an avoidance through hole. The rudder rod (9) passes through the avoidance through hole. The height direction of the avoidance half groove is perpendicular to the height direction of the notch groove (13), and the two avoidance half grooves are symmetrically arranged about the notch groove (13); The rudder sleeve (7) includes a bearing (8) and a rudder sleeve body (6) coaxially sleeved on the outside of the bearing (8). The rudder rod (9) passes through the rudder sleeve body (6) and rotates with the bearing (8).

2. The ship rudder system structure according to claim 1, characterized in that, The plane where the ear plate (3) is located is perpendicular to the length direction of the clearance half groove, and the plate surface of the ear plate (3) facing away from the notch groove (13) is in contact with the limiting surface.

3. The ship rudder system structure according to claim 2, characterized in that, The sidewall of the sealing plate (2) is spaced apart from the wall of the clearance half-groove.

4. The ship rudder system structure according to claim 1, characterized in that, The positioning tube (4) has a conical hole through it, and the length direction of the conical hole is the same as the height direction of the notch (13).

5. The ship rudder system structure according to claim 1, characterized in that, The second through hole (14) is an oval through hole.

6. The ship rudder system structure according to any one of claims 1-5, characterized in that, The tough wire (11) includes a fuse made of stainless steel.

7. A method for assembling a ship's rudder system, applied to the ship's rudder system structure as described in any one of claims 1-6, characterized in that, Includes the following steps: S10: Move the rudder blade (1) directly below the rudder sleeve (7) until the positioning tube (4) is directly opposite the rudder sleeve (7); S20: Pass the rudder stick (9) through the rudder sleeve (7) and the positioning tube (4) from top to bottom, and then screw the hydraulic nut (12) onto the lower end of the rudder stick (9); S30: Pre-assemble the sealing plate (2) into the clearance half groove, record the position of each second through hole (14) on the sealing plate (2), and then take out the sealing plate (2). S40: First, determine the position of the corresponding first through hole (15) based on the position of the second through hole (14), and then weld the corresponding ear plate (3) on the inner wall of the clearance half groove based on the position of the first through hole (15). S50: Install the sealing plate (2) in the clearance half groove, so that the bolt with hole (10) passes through the sealing plate (2) and is screwed to the ear plate (3). S60: Use the tough wire (11) to lock the connection between every two adjacent perforated bolts (10).

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