Steering control device for stern vane blade
By introducing a fixed base, steering bracket, and linkage mechanism into the stern rudder steering control device, the problem of insufficient mechanical structure of traditional rudder steering control devices is solved, achieving precise rotation and stable transmission of the rudder blade, and improving the ship's handling performance and environmental adaptability.
Patent Information
- Application Number
- CN202520446596.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-03-14
AI Technical Summary
Traditional rudder steering control devices have shortcomings in terms of mechanical structure, which cannot effectively decompose and transmit force, resulting in low steering efficiency, easy damage to rudder blades, and insufficient structural strength, making it difficult to maintain stability and accuracy in complex environments.
The design incorporates a fixed base, steering bracket, linkage mechanism, and corrosion-resistant materials. Through the coordinated operation of the linkage rod and tie rod, the rudder blade achieves precise rotation in a plane perpendicular to the longitudinal centerline of the hull, enhancing structural strength and transmission efficiency, and optimizing the mechanical transmission path.
It improves ship handling performance, enhances handling precision and response speed, reduces friction and wear during turning, extends the service life of the device, and enhances stability and reliability in complex marine environments.
Smart Images
Figure CN223736228U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of marine technology, and specifically relates to a stern rudder steering control device. Background Technology
[0002] In the field of marine navigation, the performance of the rudder steering control system directly affects the ship's navigation safety and maneuverability. With the increasing complexity of the current marine operating environment, stringent requirements are placed on rudder steering control systems; traditional rudder steering control systems have significant shortcomings in terms of mechanical structure. The connection between the rudder and the steering support is not adequately adapted to the complex stress conditions of the ship. The connection between the rudder and the steering support is often inflexible, making it difficult to effectively decompose and transmit forces when subjected to external forces, often leading to component damage due to stress concentration. Therefore, the force transmission path design in the transmission structure is suboptimal, failing to efficiently convert driving force into steering power for the rudder. For example, when the drive components apply longitudinal force, due to an unreasonable force transmission structure, this longitudinal force cannot be reasonably converted into lateral oscillation power for the rudder, resulting in low steering efficiency and making it difficult for the ship to change course quickly and accurately during navigation.
[0003] Furthermore, from the perspective of structural strength and water resistance optimization, the traditional rudder blade itself has insufficient structural strength. When faced with the impact of turbulent water flow and the forces brought about by frequent turning, it is very easy to deform, affecting the turning effect. Utility Model Content
[0004] In view of this, the present invention provides a stern rudder steering control device that can solve the problems of low rudder steering efficiency and long-term obstruction and easy damage during steering.
[0005] This utility model is implemented as follows:
[0006] This utility model provides a stern rudder steering control device, comprising a rudder 10, a steering bracket 11, a linkage mechanism 12, and a fixed base 13; the fixed base 13 has a cuboid structure and is installed in the middle of the stern; the steering bracket 11 is vertically disposed on the upper surface of the fixed base 13, and a channel is formed inside the steering bracket 11; the bottom of the rudder 10 is movably engaged with a guide platform 16 on the fixed base 13 via a guide post 15, and the guide platform 16 is provided with an arc-shaped guide slide 16. 1. The rudder blade 10 is a rectangular sheet with its long side parallel to the longitudinal centerline of the hull. The linkage mechanism 12 is installed in the channel of the steering bracket 11. The linkage mechanism 12 includes a linkage rod 121 and a pull rod 122. The bottom end of the linkage rod 121 is hinged to the rudder blade 10, and the other end is movably connected to the pull rod 122. The top end of the pull rod 122 is connected to the power source, and the bottom end is movably connected to the linkage rod 121, for driving the rudder blade 10 to rotate in a plane perpendicular to the longitudinal centerline of the hull.
[0007] The technical effects of the stern rudder steering control device provided by this utility model are as follows: by setting a fixed base, steering bracket, rudder blade and linkage mechanism, the rudder blade can rotate precisely in a plane perpendicular to the longitudinal centerline of the hull, effectively improving the ship's handling performance; through the coordinated work of the linkage rod and the pull rod, the stability and reliability of the rudder blade steering process are ensured, and the control accuracy and response speed of the ship during navigation are greatly improved.
[0008] Based on the above technical solution, the stern rudder steering control device of this utility model can be further improved as follows:
[0009] The fixing seat 13 is made of carbon steel and its outer surface is treated with anti-corrosion. The bottom of the fixing seat 13 is provided with four equally spaced fixing holes for bolt connection with the bottom plate of the ship. The upper surface of the fixing seat 13 is flat.
[0010] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the fixing seat is made of carbon steel and its outer surface is treated with anti-corrosion; the bottom of the fixing seat is provided with 4 equally spaced fixing holes for bolt connection with the bottom plate of the ship.
[0011] Furthermore, the bottom of the pull rod 122 and the linkage rod 121 are movably engaged inside the channel of the steering bracket 11. Guide blocks 1221 are provided on both sides of the bottom of the pull rod 122. The linkage rod 121 is a hollow tube with guide grooves 1211 on both sides that are adapted to the guide blocks 1221, which are used to rotate in accordance with the displacement of the pull rod 122.
[0012] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: by setting the guide groove, a precise rotation guide is provided for the linkage rod, which effectively controls the sway error during the steering process of the rudder blade; the design of the inner cavity not only enhances the structural strength of the steering bracket, but also provides a good motion guidance and support environment for the linkage mechanism, thereby improving the accuracy and reliability of the overall device.
[0013] Furthermore, the root of the rudder blade 10 is provided with a groove at its top, and the rudder blade 10 and the bottom end of the linkage rod 121 are connected to the groove via a connecting shaft.
[0014] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: by optimizing the connection between the rudder blade and the steering bracket through the groove at the root of the rudder blade, the precise positioning and uniform force of the rudder blade are ensured, the stability and accuracy of the rudder blade during the steering process are guaranteed, and friction and wear during the steering process are effectively reduced.
[0015] Furthermore, the outer surface of the linkage rod 121 has four reinforcing ribs evenly distributed around its circumference, and circular through holes are provided on both sides of the bottom end of the linkage rod 121. The circular through holes are fixedly installed to the protrusion at the top of the rudder blade 10 through a connecting shaft, and the pull rod 122 is a solid cylinder.
[0016] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the transmission efficiency and stability of the rudder steering mechanism are significantly improved through the linkage and tie rod. The four reinforcing ribs on the outer surface of the hollow tubular linkage enhance the structural strength; the solid cylindrical structure of the tie rod ensures stable power transmission and effectively reduces energy loss during steering.
[0017] Furthermore, the outer surface of the rudder blade 10 is provided with three reinforcing ribs 14 parallel to the long side of the rudder blade 10. The reinforcing ribs 14 are 2 mm higher than the surface of the rudder blade 10. The edge of the rudder blade 10 is streamlined and the chamfer radius of the edge is 1 mm to reduce water resistance.
[0018] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: By designing three reinforcing ribs and streamlined edges on the outer surface of the rudder blade, the hydrodynamic performance of the rudder blade is optimized. The reinforcing ribs can enhance the structural strength of the rudder blade and reduce its deformation at high speeds. The streamlined edge design and chamfering treatment can effectively reduce water resistance, improve the ship's navigation efficiency and fuel economy, and at the same time reduce the vibration and wear of the rudder blade in the water.
[0019] Furthermore, the outer surface of the steering bracket 11 is coated with a 0.5 mm thick anti-corrosion coating.
[0020] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: by setting a 0.5 mm thick anti-corrosion coating, the corrosion of the metal surface by seawater is effectively isolated, and the service life of the steering bracket is extended; the coating can not only prevent corrosion, but also reduce surface friction, further improving the smoothness and efficiency of the rudder steering mechanism.
[0021] Furthermore, the upper surface of the fixing base 13 is machined with a flatness tolerance at the micrometer level.
[0022] Furthermore, the outer surface of the linkage rod 121 is provided with an anti-jamming coating.
[0023] Furthermore, a sealing gasket is provided between the steering bracket 11 and the fixed base 13 to prevent water intrusion.
[0024] Compared with existing technologies, the beneficial effects of the stern rudder steering control device provided by this utility model are as follows: by setting up a fixed base, steering bracket, rudder blade, and linkage mechanism, the rudder blade can rotate precisely in a plane perpendicular to the longitudinal centerline of the hull, effectively improving the ship's handling performance; through the coordinated work of the linkage rod and the tie rod, the stability and reliability of the rudder blade steering process are ensured, significantly improving the ship's handling accuracy and response speed during navigation; by setting a guide groove, precise rotation guidance is provided for the linkage rod, effectively controlling the swaying error during the rudder blade steering process; the design of the inner cavity not only enhances the structural strength of the steering bracket, but also provides a good motion guidance and support environment for the linkage mechanism, improving the accuracy and reliability of the overall device. Attached Figure Description
[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0026] Figure 1 This is a schematic diagram of a stern rudder steering control device.
[0027] Figure 2 A schematic diagram of the linkage mechanism of a stern rudder steering control device;
[0028] The attached diagram lists the components represented by each number as follows:
[0029] 10. Rudder blade; 11. Steering bracket; 12. Linkage mechanism; 121. Linkage rod; 1211. Guide groove; 122. Tie rod; 1221. Guide block; 13. Fixed seat; 14. Reinforcing rib; 15. Guide column; 16. Guide platform; 161. Guide slide. Detailed Implementation
[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.
[0031] like Figure 1Figure 2 shows an embodiment of a stern rudder steering control device provided by this utility model. In this embodiment, it includes a rudder blade, a steering bracket, a linkage mechanism, and a fixed base. The fixed base has a cuboid structure and is installed in the middle of the stern. The steering bracket is vertically arranged on the upper surface of the fixed base, and a channel is opened in the steering bracket. The bottom of the rudder blade is movably engaged with the guide platform on the fixed base through a guide post. An arc-shaped guide slide is provided on the guide platform. The rudder blade is a rectangular sheet with its long side parallel to the longitudinal centerline of the hull. The linkage mechanism is installed in the channel of the steering bracket. The linkage mechanism includes a linkage rod and a pull rod. The bottom end of the linkage rod is hinged to the rudder blade, and the other end is movably engaged with the pull rod. The top end of the pull rod is connected to a power source, and the bottom end is movably connected to the linkage rod, for driving the rudder blade to rotate in a plane perpendicular to the longitudinal centerline of the hull.
[0032] In the above technical solution, the fixing seat is made of carbon steel and its outer surface is treated with anti-corrosion; the bottom of the fixing seat is provided with 4 equally spaced fixing holes for bolt connection with the bottom plate of the ship; the upper end surface of the fixing seat is flat.
[0033] Furthermore, in the above technical solution, the bottom of the tie rod and the linkage rod move and cooperate within the channel of the steering bracket. Guide blocks are provided on both sides of the bottom of the tie rod, and the linkage rod is a hollow tube with guide grooves on both sides that are adapted to the guide blocks, so as to cooperate with the displacement of the tie rod to rotate.
[0034] Furthermore, in the above technical solution, a groove is provided at the top of the root of the rudder blade, and the rudder blade and the bottom of the linkage rod are connected to the groove through a connecting shaft.
[0035] Furthermore, in the above technical solution, the outer surface of the linkage rod has four reinforcing ribs evenly distributed around its circumference, and circular through holes are opened on both sides of the bottom end of the linkage rod. The circular through holes are fixedly installed with the top groove of the rudder blade through the connecting shaft, and the linkage rod is a solid cylinder.
[0036] Furthermore, in the above technical solution, the outer surface of the rudder blade is provided with three reinforcing ribs parallel to the long side of the rudder blade. The reinforcing ribs are 2 mm higher than the surface of the rudder blade. The edge of the rudder blade is streamlined and the chamfer radius of the edge is 1 mm, which is used to reduce water resistance.
[0037] Furthermore, in the above technical solution, the outer surface of the steering bracket is coated with a 0.5 mm thick anti-corrosion coating.
[0038] Furthermore, in the above technical solution, the upper surface of the fixing base is machined with a flatness tolerance at the micrometer level.
[0039] Furthermore, in the above technical solution, the outer surface of the linkage rod is provided with an anti-jamming coating.
[0040] Furthermore, in the above technical solution, a sealing gasket is provided between the steering bracket and the fixed seat to prevent water intrusion.
[0041] Specifically, the principle of this invention is as follows: Utilizing the coordinated working principle of the linkage rod and the tie rod, precise and stable steering control of the rudder blade is achieved. The integrated design of the fixed base, steering bracket, and rudder blade ensures high efficiency and precision in force transmission. By selecting high-strength, corrosion-resistant materials and performing micron-level surface processing and anti-corrosion treatment, the performance of the device is improved from both material and process perspectives. The innovative internal cavity guide structure and hinge shaft design effectively control errors and friction during the rudder blade steering process, achieving high precision and low loss in force transmission. Detailed designs such as sealing gaskets and anti-jamming coatings further guarantee the stability and reliability of the device in complex marine environments.
Claims
1. A rudder blade turning control device for a ship, characterized by comprising: The utility model relates to a rudder mechanism, including rudder blade, steering support, linkage mechanism and fixed seat, the fixed seat is the cuboid structure, installs in the middle part of stern, the steering support is vertically arranged on the upper end surface of fixed seat, the steering support is opened in the passage, the bottom of rudder blade is with the guide platform on fixed seat movable cooperation through guide column, the guide platform is provided with arc guide slide, the rudder blade is the sheetlike rectangle, and its long side is parallel to the longitudinal central axis of ship body, the linkage mechanism is installed in the passage of steering support, and the linkage mechanism includes linkage rod and pull rod, the bottom end of linkage rod is articulated with rudder blade, and the other end is movable cooperation with pull rod, the top end of pull rod is connected with power source, and the bottom end is movably connected with linkage rod, is used for driving rudder blade to rotate in the plane perpendicular to longitudinal central axis of ship body.
2. A rudder blade steering control device according to claim 1, characterized in that The fixed seat is made of carbon steel, and the outer surface thereof is subjected to anti-corrosion treatment.
3. A rudder blade steering control device according to claim 2, characterised in that The bottom of the fixed seat is provided with four equidistantly distributed fixing holes for bolt connection with the bottom plate of the ship body.
4. A rudder blade steering control device according to claim 3, characterised in that The bottom of the pull rod is movably connected with the linkage rod inside the passage of the steering support, and the bottom of the pull rod is provided with guide blocks.
5. A rudder blade steering control device according to claim 4, characterised in that The root top of the rudder blade is provided with a convex groove, and the rudder blade and the linkage rod are connected through a connecting shaft and the convex groove.
6. A rudder blade steering control device according to claim 5, characterised in that The linkage rod is provided with four reinforcing ribs uniformly distributed on the circumference thereof, and the bottom of the linkage rod is provided with a circular through hole.
7. A rudder blade steering control device according to claim 6, characterised in that The outer surface of the rudder blade is provided with three reinforcing ribs parallel to the long side of the rudder blade, and the reinforcing ribs are 2 mm higher than the surface of the rudder blade.
8. A rudder blade steering control device according to claim 7, characterised in that The outer surface of the rudder blade is provided with three reinforcing ribs parallel to the long side of the rudder blade, and the reinforcing ribs are 2 mm higher than the surface of the rudder blade.
9. A rudder blade steering control device according to claim 8, characterised in that, The outer surface of the steering support is coated with an anti-corrosion coating layer with a thickness of 0.5 mm.
10. A rudder blade steering control device according to claim 9, characterised in that The upper end surface of the fixed seat is machined to have a micron-level flatness tolerance. The outer surface of the linkage rod is provided with an anti-jamming coating layer. A sealing washer is arranged between the steering support and the fixed seat to prevent water from entering.