Rudder system, ship and method of installing a rudder system

Abstract

The application discloses a rudder system, a ship and a mounting method of the rudder system, wherein the rudder system comprises a rudder stock, a rudder blade with a mounting groove and a first cover; the rudder stock has a first connecting end; the mounting groove has a first opening arranged on the top of the rudder blade and a second opening arranged on the side of the rudder blade, the first opening is communicated with the second opening, the first connecting end of the rudder stock is clamped into the mounting groove from the second opening and is press-fitted in the mounting groove, the rudder stock covers the first opening, and the first cover is mounted on the rudder blade and covers the second opening. The rudder system can reduce the assembly difficulty of the rudder stock and the rudder blade and improve the assembly efficiency of the rudder stock and the rudder blade.

Description

Technical Field

[0001] This invention relates to the field of shipbuilding technology, and in particular to a rudder system, a ship, and a method for installing the rudder system. Background Technology

[0002] As a primary system for ship maneuverability, the rudder system is crucial in ship design. The shafting system and rudder system work together to enable the ship to move forward, reverse, turn, and stop suddenly. Within the rudder system, the steering gear drives the rudder stock, which in turn rotates the rudder blades to achieve steering.

[0003] The rudder stock is the shaft that drives the rudder blades to rotate. The upper end of the rudder stock is connected to the steering gear, and the lower end is connected to the rudder blades. The steering gear drives the rudder blades to rotate via the rudder stock. The rudder blades withstand the reaction force of the water, enabling the ship to turn.

[0004] Existing rudder stock are generally quite long, extending from the rudder mechanic to the rudder blade. When installing the rudder stock and rudder blade, the rudder stock is positioned first, then the rudder blade is positioned and assembled with the rudder stock, and finally the rudder mechanic is press-fitted to complete the entire rudder system installation. Currently, the rudder blade is hoisted and installed after the rudder stock is in place. The rudder blade is lifted from below the rudder stock and inserted into it, completing the press-fit between the rudder stock and rudder blade. However, due to the length of the rudder stock, there is often insufficient space under the hull, making it impossible to position and install the rudder blade. This results in greater difficulty and lower efficiency in rudder stock and rudder blade assembly. Summary of the Invention

[0005] One objective of this invention is to provide a rudder system that can reduce the assembly difficulty of the rudder stock and rudder blades and improve the assembly efficiency of the rudder stock and rudder blades.

[0006] Another objective of this invention is to provide a method for installing a ship and a rudder system, wherein the rudder stock and rudder blades of the rudder system can be quickly installed on the deck of the ship, reducing the difficulty of assembling and installing the rudder stock and rudder blades on the hull and improving the manufacturing efficiency of the ship.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: On one hand, a rudder system is provided, including a rudder stock, a rudder blade with a mounting groove, and a first cover; the rudder stock has a first connecting end; the mounting groove has a first opening on the top of the rudder blade and a second opening on the side of the rudder blade, the first opening communicating with the second opening, the first connecting end of the rudder stock being inserted into the mounting groove from the second opening and pressed into the mounting groove, and the first cover being installed on the rudder blade and covering the second opening.

[0008] Optionally, the first cover includes a first sealing plate and a first hinge; there are a plurality of first sealing plates arranged sequentially, and each first sealing plate is equipped with the first hinge, and each first sealing plate is respectively mounted on the rudder blade through the first hinge.

[0009] Optionally, the first hinge includes a first connecting plate mounted on the rudder blade, a second connecting plate mounted on the first sealing plate, and a pivot; the first connecting plate is connected to the second connecting plate via the pivot.

[0010] Optionally, the rudder system further includes a first nut and a second cover; the side of the rudder blade is also provided with a third opening communicating with the mounting groove; the inner wall of the mounting groove is provided with a press-fit seat, the press-fit seat is provided with a locking hole, the first connecting end of the rudder rod is provided with a first screw, the first screw passes through the locking hole from top to bottom, the first nut is installed on the first screw from the third opening and abuts against the edge of the locking hole, and the second cover is installed on the side of the rudder blade and covers the third opening.

[0011] Optionally, the second cover includes a second sealing plate and a second hinge; the second sealing plate is mounted on the rudder blade via the second hinge.

[0012] Optionally, the cross-section of the first connecting end of the rudder stock gradually decreases from top to bottom, the diameter of the locking hole gradually decreases from top to bottom, and the first connecting end of the rudder stock engages with the locking hole.

[0013] Optionally, the rudder system further includes a sleeve; the first cover abuts against the sleeve; The rudder stock also has a second connecting end, the sleeve has a sleeve hole, the diameter of the sleeve hole gradually decreases from bottom to top, the cross-section of the second connecting end gradually decreases from bottom to top, and the second connecting end passes through the sleeve hole from bottom to top.

[0014] Optionally, the rudder system further includes a propeller and a squeegee; both the squeegee and the propeller are mounted on the rudder blade.

[0015] On the other hand, a ship is provided, including a deck, a second nut, a rudder stick, and the aforementioned rudder system; the rudder stick further has a second connecting end, the second connecting end of the rudder stick being mounted on the deck via the second nut and the rudder stick.

[0016] Furthermore, a method for installing a rudder system is provided, applicable to the aforementioned vessels, comprising the following steps: S1: Install the rudder stock onto the deck; S2: Move the rudder blade to the side of the rudder stock, and then move the rudder blade horizontally so that the rudder stock enters the mounting slot of the rudder blade from the second opening. S3: After the rudder stock is in place, lift the rudder blade upwards so that the rudder stock is pressed into the mounting slot of the rudder blade. S4: Install the first cap so that the first cap covers the second opening.

[0017] The beneficial effects of this invention are as follows: The rudder blade of this rudder system has a second opening on its side that communicates with the mounting slot. When the rudder blade is installed at the lower end of the rudder stock, it can move laterally to fit onto the rudder stock. Finally, the rudder blade and rudder stock are press-fitted together to complete the assembly of the rudder blade and rudder stock. The rudder blade is installed by moving laterally, avoiding the problem of the rudder blade being unable to be positioned and installed due to the long rudder stock and insufficient space in the dock. This reduces the assembly difficulty of the rudder stock and rudder blade, thereby improving the assembly efficiency of the rudder stock and rudder blade.

[0018] The present invention provides a method for installing a ship and a rudder system, wherein the rudder stock and rudder blade of the rudder system can be quickly installed on the deck of the ship, reducing the difficulty of assembling and installing the rudder stock and rudder blade on the hull and improving the ship manufacturing efficiency. Attached Figure Description

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a schematic diagram of the rudder system installation. Figure 2 A schematic diagram of the rudder stock and rudder blades; Figure 3 This is a schematic diagram of the assembly of the rudder stock and rudder blades; Figure 4 This is a schematic diagram of the first cap structure; Figure 5 This is a schematic diagram of the second cap structure; Figure 6 This is an exploded view of the first hinge. Figure 7 This is a schematic diagram of the structure of the second connecting plate and the pivot. Figure 8 This is a side view of the first cover.

[0021] Explanation of reference numerals in the attached figures: 11. Rudder stock; 12. Rudder blade; 13. First cover; 14. First nut; 15. Second cover; 16. Second nut; 17. Sleeve; 18. Propeller; 19. Anti-slip block; 20. Deck; 21. Rudder handle; 111. First connecting end; 112. Second connecting end; 113. First screw; 121. Mounting slot; 122. First opening; 123. Second opening; 124. Third opening; 125. Press-fit base; 126. Clip hole; 131. First sealing plate; 132. First hinge; 133. Abutment plate; 151. Second sealing plate; 152. Second hinge; 1321. First connecting plate; 1322. Second connecting plate; 1323. Pivot; 13211, First shaft hole; 13212, Keyway; 13221, Second shaft hole; 13222, Slider; 13231, Positioning key; 13232, First sliding groove; 13233, First positioning groove; 13234, Second positioning groove. Detailed Implementation

[0022] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. 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.

[0023] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "fixed," "linked," "communicated," "abutting," "clamping," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0025] In the description herein, it should be understood that the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings, and are used only for ease of description and simplification of operation. They 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, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0026] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0028] Unless otherwise stated or defined, the term "and / or" as used in this invention includes any and all combinations of one or more of the associated listed items.

[0029] For ease of description, unless otherwise stated, the terms "up" and "down" in the following text refer to the same direction as "top" and "bottom". Figure 1 Its vertical direction is consistent.

[0030] The shafting system, in a propulsion system, refers to the entire transmission system comprised primarily of drive shafts, running from the main engine output shaft flange to the propeller. Its function is to transmit the engine's torque to the propeller to overcome its drag torque in water, and simultaneously transmit the thrust generated by the propeller to the hull to overcome drag during navigation. It includes the thrust shaft, intermediate shafts, stern shaft, thrust bearings, intermediate bearings, stern bearings, bearing accessories, lubrication, cooling, and sealing devices. The rudder stock drives the rudder blades to rotate. The rudder stock bears and transmits the forces acting on the rudder blades and the reaction forces from the water. The rudder system, in conjunction with the shafting system, achieves steering.

[0031] like Figures 1 to 5As shown, this embodiment provides a rudder system, including a rudder stock 11, a rudder blade 12 with a mounting groove 121, and a first cover 13. The rudder stock 11 has a first connecting end 111, located at the lower end of the rudder stock 11, for connecting the rudder blade 12. The mounting groove 121 extends from top to bottom, and the rudder stock 11 and the rudder blade 12 can be assembled by pressing the first connecting end 111 of the rudder stock 11 into the mounting groove 121. The mounting groove 121 has a first opening 122 at the top of the rudder blade 12 and a second opening 123 on the side of the rudder blade 12. The first opening 122 communicates with the second opening 123, and the first connecting end 111 of the rudder stock 11 is inserted into the mounting groove 121 through the second opening 123 and pressed into the mounting groove 121. The first opening 122 is located at the top of the rudder blade 12 and communicates with the mounting groove 121, facilitating the upward extension of the rudder stock 11 to connect with the deck 20 of the hull. The second opening 123 is located on the side of the rudder blade 12 and communicates with the mounting groove 121, facilitating the movement of the rudder stock 11 relative to the rudder blade 12 and its entry into the mounting groove 121 through the second opening 123. The horizontal movement of the rudder blade 12 causes the rudder stock 11 to enter the mounting groove 121, driving the rudder blade 12 to move upwards, thus completing the press-fitting of the rudder stock 11 and the rudder blade 12. After the press-fitting of the rudder stock 11 and the rudder blade 12 is completed, the rudder stock 11 passes through the first opening 122 and extends upwards to the hull. The rudder stock 11 or other components close the first opening 122, leaving the second opening 123 open. Then, the first cover 13 is installed on the rudder blade 12, covering the second opening 123, completing the assembly of the rudder stock 11 and the rudder blade 12.

[0032] After the rudder stock 11 is installed in place, the rudder blade 12 is hoisted to one side of the rudder stock 11. This eliminates the need to move the rudder blade 12 below the rudder stock 11, saving more than four meters of lifting height and avoiding installation difficulties due to insufficient space under the hull. It also prevents the rudder blade 12 from being unable to fit under the rudder stock 11, thus ensuring proper installation. Even with a long rudder stock 11 or a high rudder blade 12, assembly between the rudder blade 12 and the rudder stock 11 can be achieved. During the installation of the rudder blade 12, its assembly with the rudder stock 11 can be completed simply by translating and lifting it, improving the assembly efficiency. The first cover 13 covers the second opening 123 on the side of the rudder blade 12, maintaining the smooth linearity of the rudder blade 12's outer plate. The streamlined shape of the rudder blade reduces propeller drag, facilitating high-speed propeller operation and providing better thrust for the ship.

[0033] In some embodiments, the first cover 13 includes a first sealing plate 131 and a first hinge 132. The first sealing plate 131 is mounted on the rudder blade 12 via the first hinge 132, facilitating quick and easy installation of the first cover 13 after the rudder blade 12 and rudder stock 11 are assembled, thereby covering and sealing the second opening 123. The first sealing plate 131 is mounted via the first hinge 132, avoiding the problems of numerous loose parts, easy loss, and installation errors associated with conventional methods.

[0034] Optionally, there are several first sealing plates 131 arranged sequentially, and each first sealing plate 131 is equipped with a first hinge 132. Each first sealing plate 131 is mounted on the rudder blade 12 through the first hinge 132. Because the first connecting end 111 of the rudder stock 11 is connected to the rudder blade 12 for a relatively long length, the second opening 123 needs to be large enough, which makes the area to be covered by the first cover 13 also larger. The first cover 13 includes several first cover plates 131, each of which is independently installed by a first hinge 132, thus distributing the overall weight of the first cover 13. This avoids problems such as long hoisting time, many procedures, and large investment of manpower and resources for the first cover 13, and reduces the installation difficulty of the first cover 13. When installing the first cover 13, one end of each of the first cover plates 131 is installed one by one on the outer side of the rudder blade 12 by the first hinge 132. After the rudder stock 11 and the rudder blade 12 are pressed together, the second opening 123 can be covered by rotating each of the first cover plates 131. Finally, the edges of all the first cover plates 131 are welded to the edges of the second opening 123 and the edges between the first cover plates 131 to complete the seal. The first cover 13 is divided into multiple first cover plates 131, which can achieve rapid installation in pre-positioned locations, saving hoisting, installation, and welding cycles, and reducing the installation time for dock construction by 1-2 days.

[0035] In some embodiments, the first hinge 132 includes a first connecting plate 1321 mounted on the rudder blade 12, a second connecting plate 1322 mounted on the first sealing plate 131, and a pivot 1323. The first connecting plate 1321 is connected to the second connecting plate 1322 via the pivot 1323. The first connecting plate 1321 and the second connecting plate 1322 can rotate relative to each other, allowing the first sealing plate 131 to rotate around the rudder blade 12.

[0036] Optionally, the first connecting plate 1321 can be detachably mounted on the rudder blade 12 or fixedly mounted on the rudder blade 12. The second connecting plate 1322 can be detachably mounted on the first sealing plate 131 or fixedly mounted on the first sealing plate 131. After all the first sealing plates 131 cover the second opening 123, they are connected to the rudder blade 12 by welding. The first connecting plate 1321 can be separated from the rudder blade 12 by disassembly or shearing, and the second connecting plate 1322 can be separated from the first sealing plate 131 by disassembly or shearing. This prevents the first hinge 132 from affecting the operation of the rudder blade 12 and thus affecting the speed of the ship.

[0037] In some embodiments, the rudder system further includes a first nut 14 and a second cover 15; the side of the rudder blade 12 is also provided with a third opening 124 communicating with the mounting groove 121, and the inner wall of the mounting groove 121 is provided with a press-fit seat 125, which is annular. The press-fit seat 125 is provided with a locking hole 126, which extends from top to bottom through the press-fit seat 125, and the third opening 124 is located below the press-fit seat 125. The first connecting end 111 of the rudder stock 11 is provided with a first screw 113. After the first screw 113 passes through the locking hole 126 from top to bottom, the first nut 14 is inserted into the mounting groove 121 through the third opening 124. The first nut 14 is installed on the first screw 113 and abuts against the edge of the locking hole 126. The first nut 14 prevents the rudder stock 11 from moving from bottom to top and separating from the rudder blade 12. After the first nut 14 is installed, the second cover 15 is installed on the side of the rudder blade 12 and covers the third opening 124 to form a seal.

[0038] In one embodiment, the first nut 14 is a hydraulic nut.

[0039] Optionally, there are two third openings 124 spaced horizontally, and two second covers 15, each corresponding to one of the two third openings 124. The two third openings 124 facilitate the installation, tightening, disassembly, and maintenance of the first nut 14. The two third openings 124 are located on opposite sides of the rudder blade 12, allowing installers to choose either side of the rudder blade 12 for installation. Alternatively, the two third openings 124 can be used in conjunction to install the first nut 14. For example, one installer can install the first nut 14 through one third opening 124, while another installer tightens it through the other. Tightening the first nut 14 can be done manually or using a tightening device inserted through the third opening 124. When the first nut 14 is a hydraulic nut, one installer can tighten the hydraulic nut from the third opening 124 on one side, while another installer can insert the oil injection hose of the manual pump into the oil injection port of the hydraulic nut from the third opening 124 on the other side to inject hydraulic oil.

[0040] It is understood that the second cover 15 includes a second cover plate 151 and a second hinge 152; the second cover plate 151 is mounted on the rudder blade 12 via the second hinge 152. The structure of the second cover plate 151 is the same as that of the first cover plate 131, and the structure and installation method of the second hinge 152 are the same as those of the first hinge 132, which will not be described again here.

[0041] In some embodiments, one end of the first connecting plate 1321 is mounted on the outer side of the rudder blade 12, and the pivot 1323 is mounted on the other end of the first connecting plate 1321. Specifically, the other end of the first connecting plate 1321 is provided with a first shaft hole 13211, and the lower end of the pivot 1323 is fixedly mounted in the first shaft hole 13211. Alternatively, it can be mounted in the first shaft hole 13211 through a keyway 13212 and a positioning key 13231. The keyway 13212 and the positioning key 13231 restrict the pivot 1323 from rotating relative to the first connecting plate 1321 along the vertical axis.

[0042] The upper outer surface of the pivot 1323 is provided with a first sliding groove 13232, a first positioning groove 13233, and a second positioning groove 13234. The first positioning groove 13233 and the second positioning groove 13234 extend along the axial direction of the pivot 1323 and are arranged at intervals along the circumference of the pivot 1323. The first sliding groove 13232 extends along the circumference of the pivot 1323 and the first positioning groove 13233 and the second positioning groove 13234 are both located below the first sliding groove 13232. The first positioning groove 13233 and the second positioning groove 13234 are arranged sequentially in a direction away from the second opening 123. The first positioning groove 13233 and the second positioning groove 13234 are connected to the first sliding groove 13232 to form a guide channel. One end of the second connecting plate 1322 is connected to the first sealing plate 131, and the other end of the second connecting plate 1322 is provided with a second shaft hole 13221. A slider 13222 is provided on the inner wall of the second shaft hole 13221, and the slider 13222 can slide along the guide channel.

[0043] Thus, the first sealing plate 131 is pre-installed on the rudder blade 12 via the first hinge 132. At this time, the slider 13222 on the second connecting plate 1322 engages with the first positioning groove 13233. The second connecting plate 1322 cannot rotate around the pivot 1323 due to the restriction of the first positioning groove 13233. At this time, the first sealing plate 131 is furthest from the second opening 123, and the opening angle of the first sealing plate 131 is the largest. Therefore, during the process of the rudder stick 11 engaging with the second opening 123, the slider 13222 engages with the first positioning groove 13233, and the opening angle of the first sealing plate 131 is the largest. This not only facilitates the rudder stick 11 entering the mounting groove 121 from the second opening 123, but also prevents external forces such as wind from causing the first sealing plate 131 to rotate and affecting the installation of the rudder stick 11. After the rudder stick 11 is installed, the slider 13222 is moved into the first sliding groove 13232 by lifting the first sealing plate 131. Then, the first sealing plate 131 and the second connecting plate 1322 are driven to rotate around the pivot 1323. Finally, the slider 13222 slides along the first sliding groove 13232 to the top of the second positioning groove 13234, and the first sealing plate 131 is released. Under the action of gravity, the first sealing plate 131 falls into the second positioning groove 13234. At this time, the first sealing plate 131 just covers the second opening 123. At the same time, the second positioning groove 13234 restricts the rotation of the first sealing plate 131, which facilitates welding positioning.

[0044] Furthermore, since the first sealing plate 131 is pre-mounted on the rudder blade 12 via the first hinge 132, due to potential installation errors, some positional errors may occur when the first sealing plate 131 rotates to cover the second opening 123. This could result in an excessively large distance between the upper and lower edges of the first sealing plate 131 and the second opening 123, hindering the welding of the first sealing plate 131. Therefore, during welding, the slider 13222 can slide up and down along the second positioning groove 13234 for adjustment, allowing each first sealing plate 131 to be adjusted vertically and cooperate to cover the second opening 123. During the welding process, the first sealing plate 131 also moves up and down for fine adjustments to facilitate welding.

[0045] Optionally, the two first sealing plates 131 are positioned together by pin holes and pins. After the first sealing plates 131 cooperate to cover the second opening 123, they are fixed relative to each other by pin holes and pins. The first sealing plates 131 cannot rotate relative to each other to ensure the quality of welding. After welding is completed, the first hinge 132 is cut and separated from the rudder blade 12.

[0046] Understandably, when the structure and installation method of the second hinge 152 are the same as those of the first hinge 132, it can prevent the second sealing plate 151 from rotating due to external forces such as wind when installing the first nut 14, thus avoiding injury to the operator. The second sealing plate 151 can slide up and down along the second positioning groove 13234 for adjustment, eliminating installation errors of the cover and ensuring that the second sealing plate 151 accurately covers the third opening 124.

[0047] In some embodiments, it is convenient to disassemble the first connecting plate 1321 and the second connecting plate 1322.

[0048] This invention only requires welding the first cover 13 and the second cover 15 to achieve the complete installation of the rudder blade 12. Moreover, by arranging hinges on the first cover 13 and the second cover 15, the rudder blade 12 is positioned in advance, reducing the difficulty of construction and docking. This saves time for the dock and also ensures a neat, orderly, and well-formed weld, avoiding problems such as difficult on-site welding and poor weld quality.

[0049] In some embodiments, the first connecting end 111 of the rudder stock 11 is conical, and the cross-section of the first connecting end 111 of the rudder stock 11 gradually decreases from top to bottom. The diameter of the locking hole 126 gradually decreases from top to bottom. When the rudder blade 12 is raised upward so that the rudder stock 11 is pressed into the mounting groove 121, the first connecting end 111 of the rudder stock 11 engages with the locking hole 126. Specifically, the first connecting end 111 and the locking hole 126 are interference fits to complete the installation and positioning of the rudder stock 11 and the rudder blade 12.

[0050] Optionally, the rudder system also includes a sleeve 17. The sleeve 17 is used for mounting on the deck 20 of the hull, facilitating the installation of the rudder stock 11, allowing the rudder stock 11 to rotate relative to the sleeve 17, thereby driving the rudder blade 12 to rotate relative to the hull. Specifically, after the rudder stock 11 and rudder blade 12 are assembled, the first sealing plate 131 of the first cover 13 abuts against the sleeve 17, as shown in the reference... Figure 8 The first cover 13 includes an abutment plate 133 connected to the inner side of the first cover plate 131. When the first cover 13 is installed, the abutment plate 133 on the inner side of the first cover plate 131 abuts against the outer side of the structure located inside the first cover 13. In different embodiments, the structure inside the first cover 13 may be a sleeve 17 or a portion extending downwards from the rudder deck, etc. When the abutment plate 133 abuts against the inner structure, the first cover 13 is positioned so that the outer surface of the first cover plate 131 remains flush with the outer side of the rudder blade 12 during welding, resulting in a smooth outer surface of the rudder blade 12 after the first cover 13 is installed. To ensure the positioning effect, the first cover 13 includes multiple abutment plates 133 spaced apart from top to bottom.

[0051] The rudder stock 11 also has a second connecting end 112, which is located near the upper end of the rudder stock 11 and is used to connect the rudder gear. The sleeve 17 has a sleeve hole with a diameter that gradually decreases from bottom to top. The cross-section of the second connecting end 112 also gradually decreases from bottom to top. The second connecting end 112 passes through the sleeve hole from bottom to top, thus achieving the installation fit between the upper end of the rudder stock 11 and the sleeve 17. The sleeve 17 is first installed on the deck 20 of the hull, and then the second connecting end 112 of the rudder stock 11 is inserted into the sleeve hole of the sleeve 17 to achieve the positioning of the rudder stock 11 on the deck 20 of the hull.

[0052] In some embodiments, the rudder system further includes a propeller 18 and an anti-slip block 19. The movement of the hull can be achieved by driving the propeller 18 to rotate. Both the anti-slip block 19 and the propeller 18 are mounted on the rudder blade 12. Due to waves and various unstable water currents, the rudder blade 12 will also vibrate irregularly. The anti-slip block 19 can prevent the rudder stock 11 from bending due to the vibration of the rudder blade 12, and can also protect the servo motor connected to the rudder stock 11.

[0053] It is understandable that the anti-slip block 19 can be installed on the upper surface of the rudder blade 12 or on the mounting surface between the rudder blade 12 and the lower rudder bearing.

[0054] This embodiment also provides a vessel, including a deck 20, a second nut 16, a rudder handle 21, and the aforementioned rudder system. The rudder stock 11 also has a second connecting end 112, which is mounted on the deck 20 via the second nut 16 and the rudder handle 21. Both the first nut 14 and the second nut 16 are hydraulic nuts.

[0055] Specifically, after the upper end of the sleeve 17 is installed on the deck 20, the second connecting end 112 of the rudder stock 11 passes upward through the sleeve 17 and is installed on the deck 20 through the second nut 16 and the rudder handle 21, thus completing the installation of the rudder stock 11. After the rudder stock 11 is installed, the rudder blade 12 is then installed on the first connecting end 111 of the rudder stock 11.

[0056] In addition, this embodiment also provides a method for installing a rudder system, applicable to the aforementioned vessel, comprising the following steps: S1: Install the rudder stock 11 on the deck 20. When installing the rudder stock 11 on the deck 20, first install the sleeve 17 on the deck 20, then install the second connecting end 112 of the rudder stock 11 in the sleeve 17 and connect it to the deck 20 through the second nut 16 and the rudder handle 21. The first connecting end 111 of the rudder stock 11 extends downward to the designated position.

[0057] S2: After hoisting the rudder blade 12 to an upright position, move the rudder blade 12 to the side of the rudder stock 11, and then move the rudder blade 12 horizontally so that the rudder stock 11 enters the mounting slot 121 of the rudder blade 12 through the second opening 123, and the rudder blade 12 is fitted into the rudder stock 11 through the second opening 123.

[0058] S3: After the rudder stock 11 is in place, the rudder blade 12 is raised upward so that the rudder stock 11 is pressed into the mounting groove 121 of the rudder blade 12. At this time, the rudder stock 11 is inserted into the locking hole 126 of the pressing seat 125, completing the pressing of the rudder stock 11 and the rudder blade 12. Finally, the first nut 14 is installed from the third opening 124. The first nut 14 is threadedly connected to the first connecting end 111 to improve the stability of the connection between the rudder stock 11 and the rudder blade 12.

[0059] Specifically, after the first nut 14 is installed, the third opening 124 is covered by the second cover 15. After the second cover 15 covers the third opening 124, it is connected to the rudder blade 12 by welding.

[0060] S4: Install the first cover 13 so that it covers the second opening 123. The first cover 13 is pre-rotated and installed on the rudder blade 12. After the rudder stick 11 and the rudder blade 12 are press-fitted, rotate the first cover 13 so that it covers the second opening 123, and then weld the first cover 13 to the rudder blade 12.

[0061] S5: Install anti-jump block 19.

[0062] It is understandable that some of the steps in the above process do not have a specific order. For example, the welding of the first cover 13 and the second cover 15 can be performed simultaneously or sequentially. Similarly, the rudder stick 21 can be installed on the rudder stock 11 before or after the welding of the first cover 13 is completed.

[0063] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of the invention and should not be construed as limiting the scope of protection of the invention in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of the invention without inventive effort, and these embodiments will all fall within the scope of protection of the present invention.

Claims

1. A rudder system, characterized in that, The device includes a rudder stock (11), a rudder blade (12) with a mounting groove (121), and a first cover (13); the rudder stock (11) has a first connecting end (111); the mounting groove (121) has a first opening (122) on the top of the rudder blade (12) and a second opening (123) on the side of the rudder blade (12), the first opening (122) communicating with the second opening (123), and the first connecting end (111) of the rudder stock (11) being engaged with the mounting groove (123) through the second opening (123). The groove (121) is pressed into the mounting groove (121), and the first cover (13) is installed on the rudder blade (12) and covers the second opening (123); the first cover (13) includes a first sealing plate (131) and a first hinge (132); there are a plurality of first sealing plates (131) arranged sequentially, and each first sealing plate (131) is equipped with the first hinge (132), and each first sealing plate (131) is respectively installed on the rudder blade (12) through the first hinge (132); the first hinge The chain (132) includes a first connecting plate (1321) mounted on the rudder blade (12), a second connecting plate (1322) mounted on the first sealing plate (131), and a pivot (1323); the first connecting plate (1321) is connected to the second connecting plate (1322) via the pivot (1323); it also includes a first nut (14) and a second sealing cap (15); the side of the rudder blade (12) is also provided with a third opening (124) communicating with the mounting groove (121); the mounting groove (121) The inner wall is provided with a press-fit seat (125), the press-fit seat (125) is provided with a locking hole (126), the first connecting end (111) of the rudder (11) is provided with a first screw (113), the first screw (113) passes through the locking hole (126) from top to bottom, the first nut (14) is installed on the first screw (113) from the third opening (124) and abuts against the edge of the locking hole (126), and the second cover (15) is installed on the side of the rudder (12) and covers the third opening (124).

2. The rudder system according to claim 1, characterized in that, The second cover (15) includes a second cover plate (151) and a second hinge (152); the second cover plate (151) is mounted on the rudder blade (12) via the second hinge (152).

3. The rudder system according to claim 1, characterized in that, The cross-section of the first connecting end (111) of the rudder (11) gradually decreases from top to bottom, and the diameter of the locking hole (126) gradually decreases from top to bottom. The first connecting end (111) of the rudder (11) engages with the locking hole (126).

4. The rudder system according to claim 1, characterized in that, It also includes a sleeve (17); the first cap (13) abuts against the sleeve (17); The rudder (11) also has a second connecting end (112), the sleeve (17) has a sleeve hole, the diameter of the sleeve hole gradually decreases from bottom to top, the cross section of the second connecting end (112) gradually decreases from bottom to top, and the second connecting end (112) passes through the sleeve hole from bottom to top.

5. The rudder system according to claim 1, characterized in that, It also includes a propeller (18) and a squeegee (19); both the squeegee (19) and the propeller (18) are mounted on the rudder (12).

6. A ship, characterized in that, Includes a deck (20), a second nut (16), a rudder stick (21), and a rudder system as described in any one of claims 1 to 5; the rudder stick (11) further has a second connecting end (112), the second connecting end (112) of the rudder stick (11) being mounted on the deck (20) via the second nut (16) and the rudder stick (21).

7. A method for installing a rudder system, applied to the vessel described in claim 6, characterized in that, Includes the following steps: S1: Install the rudder stock (11) onto the deck (20); S2: Move the rudder blade (12) to the side of the rudder stock (11), and then move the rudder blade (12) horizontally so that the rudder stock (11) enters the mounting slot (121) of the rudder blade (12) from the second opening (123); S3: After the rudder stock (11) is in place, the rudder blade (12) is raised upward so that the rudder stock (11) is pressed into the mounting groove (121) of the rudder blade (12); S4: Install the first cover (13) so that the first cover (13) covers the second opening (123).

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