Modular rudder blade convenient for disassembly and maintenance

Abstract

The utility model discloses a modularization rudder blade convenient to disassemble and overhaul belongs to ship propulsion system technical field, including connecting rod, connecting rod includes the main connecting rod of horizontal setting and is connected to the auxiliary connecting rod below main connecting rod and is arranged in parallel with main connecting rod, still include a plurality of while being equipped with on main connecting rod and auxiliary connecting rod and along the linear array distribution of connecting rod axial modularization rudder blade, still include locking device, locking device includes two groups respectively through the hexagon nut of thread installation in main connecting rod and auxiliary connecting rod end, and two groups of hexagon nut will all modularization rudder blade tightly together. The rudder blade is formed by the axial splicing of a plurality of modularization rudder blades, when a single module is damaged due to collision or abrasion, only needs to loosen the hexagon nut of corresponding position, can quickly disassemble and change a single modularization rudder blade, does not need integral replacement, and the maintenance cost and time are greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of marine propulsion system technology, specifically a modular rudder blade that is easy to disassemble and maintain. Background Technology

[0002] The rudder blade is one of the core components of a ship's steering system. Its main function is to control the ship's direction by changing the contact area and angle with the water flow. Most existing rudder blades are one-piece structures, meaning the entire blade is machined from a single material. However, during navigation, the rudder blade is constantly submerged underwater, making it susceptible to damage from impacts by reefs, floating debris, etc. Furthermore, the edges or localized areas of the rudder blade also experience wear due to prolonged friction with the water flow. For one-piece rudder blades, once localized damage occurs, it usually requires complete replacement or complex cutting and repair, resulting in long maintenance cycles, extremely high costs, and severely impacting the ship's normal operational efficiency. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a modular rudder blade that is easy to disassemble and repair. The modular design enables quick replacement when there is partial damage, thereby reducing maintenance costs.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A modular rudder blade that is easy to disassemble and maintain includes a connecting rod; the connecting rod includes a main connecting rod arranged laterally and an auxiliary connecting rod connected below the main connecting rod and arranged parallel to the main connecting rod; it also includes multiple modular rudder blades that are simultaneously mounted on the main connecting rod and the auxiliary connecting rod and linearly arrayed along the connecting rod axis; it also includes a locking device; the locking device includes two sets of hexagonal nuts that are respectively threaded onto the ends of the main connecting rod and the auxiliary connecting rod, and the two sets of hexagonal nuts securely fasten all the modular rudder blades together.

[0005] By adopting the above solution, the rudder blade is composed of multiple modular rudder blades spliced ​​together along the connecting rod axis. When a single module is damaged due to collision or wear, the single modular rudder blade can be quickly disassembled and replaced simply by loosening the hexagonal nut at the corresponding position, without the need for overall replacement, which greatly reduces maintenance costs and time.

[0006] As a preferred embodiment of modular rudder blades that facilitates disassembly and maintenance, the diameter of the main connecting rod is larger than that of the auxiliary connecting rod. As the main load-bearing component, the main connecting rod needs to withstand greater lateral forces when it is arranged laterally. Increasing its diameter can improve the structural strength and avoid misalignment of the modular rudder blades caused by deformation under stress.

[0007] As a preferred embodiment of a modular rudder blade that facilitates disassembly and maintenance, it also includes an anti-loosening device; the anti-loosening device includes an anti-loosening block, a slot opened upward along the bottom of the anti-loosening block, and claws fixed to the left and right sides of the slot respectively; the connecting rod also includes anti-loosening slots opened at the ends of the main connecting rod and the auxiliary connecting rod respectively, and slots opened on the left and right inner walls of the anti-loosening slots; the anti-loosening block is inserted into the anti-loosening slot while the claws are also inserted into the slots; the axial movement of the hexagonal nut is restricted by the cooperation of the anti-loosening block and the anti-loosening slot, thereby preventing the hexagonal nut from loosening.

[0008] As a preferred embodiment of a modular rudder blade that is easy to disassemble and maintain, the front side of the anti-loosening plug is inclined, so that the distance between the front and rear of the anti-loosening plug gradually decreases from top to bottom; the inclined surface design can provide pre-tightening force through compression deformation when inserted into the anti-loosening slot, further enhancing the fit between the anti-loosening plug and the anti-loosening slot.

[0009] As a preferred embodiment of a modular rudder blade that facilitates disassembly and maintenance, the anti-loosening device further includes two anti-loosening rods respectively connected to the top of the anti-loosening plug and extending downward in a curved shape from the top of the anti-loosening plug; the locking device further includes an anti-loosening ring sleeve connected to the front end of the hexagonal nut and an anti-loosening ring groove circumferentially opened along the side of the anti-loosening ring sleeve; the two anti-loosening rods are inserted downward into the anti-loosening ring groove; the engagement between the anti-loosening rods and the anti-loosening ring groove further restricts the rotational loosening of the hexagonal nut.

[0010] As a preferred embodiment of a modular rudder blade that facilitates disassembly and maintenance, the width of the anti-loosening ring groove is equal to the diameter of the anti-loosening rod; this ensures that the anti-loosening rod and the anti-loosening ring groove fit tightly together, preventing wobbling caused by gaps.

[0011] The beneficial effects of this utility model are: 1. Modular design and low-cost maintenance: The rudder blade is composed of multiple modular rudder blades spliced ​​along the connecting rod axis. When a single module is damaged due to collision or wear, the individual modular rudder blade can be quickly disassembled and replaced simply by loosening the hexagonal nut at the corresponding position, without the need for overall replacement, which greatly reduces maintenance costs and time.

[0012] 2. Double locking and anti-loosening structure for high reliability: The modular rudder blade is axially locked by two sets of hexagonal nuts at the ends of the main and auxiliary connecting rods. At the same time, the anti-loosening plug-anti-loosening slot and the anti-loosening rod-anti-loosening ring groove of the anti-loosening device effectively prevent the nuts from loosening due to vibration or water flow impact during ship navigation, ensuring the stability of the connection between modules.

[0013] 3. Structural strength optimization: The diameter of the main connecting rod is larger than that of the auxiliary connecting rod, which not only meets the strength requirements of the main connecting rod as the main load-bearing component, but also helps to support the modular rudder blade through the auxiliary connecting rod, thus balancing the structural weight and strength and improving the overall impact resistance. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0015] Figure 1 A 3D structural diagram of the modular rudder blade in use to facilitate disassembly and maintenance; Figure 2 A 3D structural diagram of a modular rudder blade designed for easy disassembly and maintenance; Figure 3 for Figure 2 A magnified view of a section at point A in the middle; Figure 4 To hide Figure 3 Structural diagram after the locking device and anti-loosening device; Figure 5 To showcase Figure 4 Structural diagram of the internal structure of the main connecting rod and auxiliary connecting rod; Figure 6 This is a three-dimensional structural diagram of the locking device; Figure 7 Three-dimensional structure of the anti-loosening device Figure 1 ; Figure 8 Three-dimensional structure of the anti-loosening device Figure 2 .

[0016] Reference numerals: 1-Connecting rod; 11-Main connecting rod; 12-Auxiliary connecting rod; 13-Anti-loosening slot; 14-Slot; 2-Modular rudder blade; 3-Locking device; 31-Hexagonal nut; 32-Anti-loosening ring; 33-Anti-loosening ring groove; 4-Anti-loosening device; 41-Anti-loosening insert; 42-Slotted; 43-Claw; 44-Anti-loosening insert rod; 5-Swing arm. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] like Figures 1 to 6As shown, a modular rudder blade that is easy to disassemble and maintain is used in a ship's steering system. The entire rudder blade is mounted on a control arm 5, specifically including a connecting rod 1. The connecting rod 1 includes a transversely arranged main connecting rod 11 and an auxiliary connecting rod 12 connected below and parallel to the main connecting rod 11. It also includes multiple modular rudder blades 2 that are simultaneously mounted on the main connecting rod 11 and the auxiliary connecting rod 12 and linearly arrayed along the axial direction of the connecting rod 1. It also includes a locking device 3. The locking device 3 includes two sets of hexagonal nuts 31 that are respectively threaded onto the ends of the main connecting rod 11 and the auxiliary connecting rod 12. The two sets of hexagonal nuts 31 tightly fasten all the modular rudder blades 2 together. This rudder blade is composed of multiple modular rudder blades 2 spliced ​​along the axial direction of the connecting rod 1. When a single module is damaged due to collision or wear, only the hexagonal nuts 31 at the corresponding position need to be loosened to quickly disassemble and replace the individual modular rudder blade 2 without replacing the entire module, which greatly reduces maintenance costs and time.

[0019] like Figure 4 As shown, the diameter of the main connecting rod 11 is larger than that of the auxiliary connecting rod 12. As the main load-bearing component, the main connecting rod 11 needs to withstand greater lateral forces when it is arranged laterally. Increasing its diameter can improve the structural strength and avoid misalignment of the modular rudder blade 2 due to deformation under stress.

[0020] like Figure 3 , Figures 7 to 8 As shown, it also includes an anti-loosening device 4; the anti-loosening device 4 includes an anti-loosening insert 41, a slot 42 opened upward along the bottom of the anti-loosening insert 41, and claws 43 fixed on the left and right sides of the slot 42 respectively; the connecting rod 1 also includes anti-loosening slots 13 opened at the ends of the main connecting rod 11 and the auxiliary connecting rod 12 respectively, and slots 14 opened on the left and right inner walls of the anti-loosening slots 13; the anti-loosening insert 41 is inserted into the anti-loosening slot 13 while the claws 43 are also inserted into the slots 14; the axial movement of the hexagonal nut 31 is restricted by the cooperation between the anti-loosening insert 41 and the anti-loosening slot 13, thereby preventing the hexagonal nut 31 from loosening.

[0021] like Figures 7 to 8 As shown, the front side of the anti-loosening plug 41 is an inclined surface, which makes the distance between the front and rear of the anti-loosening plug 41 gradually decrease from top to bottom; the inclined surface design can provide pre-tightening force by squeezing and deforming when inserted into the anti-loosening slot 13, further enhancing the fit between the anti-loosening plug 41 and the anti-loosening slot 13.

[0022] like Figure 3 , Figures 7 to 8As shown, the anti-loosening device 4 also includes two anti-loosening rods 44 that are respectively connected to the top of the anti-loosening plug 41 and extend downward in a curved shape from the top of the anti-loosening plug 41; the locking device 3 also includes an anti-loosening ring sleeve 32 connected to the front end of the hexagonal nut 31 and an anti-loosening ring groove 33 circumferentially opened along the side of the anti-loosening ring sleeve 32; the two anti-loosening rods 44 are inserted downward into the anti-loosening ring groove 33; the engagement of the anti-loosening rods 44 with the anti-loosening ring groove 33 further restricts the rotation and loosening of the hexagonal nut 31.

[0023] Continue as Figure 3 , Figures 7 to 8 As shown, the width of the anti-loosening groove 33 is equal to the diameter of the anti-loosening rod 44; this ensures that the anti-loosening rod 44 fits tightly with the anti-loosening groove 33 to avoid shaking caused by gaps.

[0024] The working principle of this utility model is as follows: When a modular rudder blade 2 is damaged due to a collision, the operator first uses tools (such as needle-nose pliers) to pull the anti-loosening block 41 upwards, causing the claw 43 to disengage from the slot 14, and at the same time, the anti-loosening rod 44 disengages from the anti-loosening ring groove 33, thus completing the disassembly of the anti-loosening device 44; then, the operator uses tools to rotate the hexagonal nuts 31 at the ends of the main connecting rod 11 and the auxiliary connecting rod 12 in the opposite direction to loosen the axial tightening of the modular rudder blade 2; finally, the damaged modular rudder blade 2 is pulled out from the main connecting rod 11 and the auxiliary connecting rod 12, replaced with a new modular rudder blade 2, and the anti-loosening device 4 is installed in the reverse order and the hexagonal nuts 31 are tightened to complete the repair.

[0025] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A modular rudder blade that is easy to disassemble and maintain, comprising a connecting rod; the connecting rod includes a main connecting rod arranged laterally and an auxiliary connecting rod connected below the main connecting rod and arranged parallel to the main connecting rod; Its features are: It also includes multiple modular rudder blades that are simultaneously mounted on the main connecting rod and the auxiliary connecting rod and are distributed in a linear array along the connecting rod axis; It also includes a locking device; the locking device includes two sets of hexagonal nuts that are respectively threaded onto the ends of the main connecting rod and the auxiliary connecting rod, and the two sets of hexagonal nuts securely fasten all the modular rudder blades together.

2. The modular rudder blade for easy disassembly and maintenance according to claim 1, characterized in that: The diameter of the main connecting rod is larger than the diameter of the auxiliary connecting rod.

3. The modular rudder blade for easy disassembly and maintenance according to claim 1, characterized in that: It also includes an anti-loosening device; the anti-loosening device includes an anti-loosening block, a slot opened upward along the bottom of the anti-loosening block, and claws fixed to the left and right sides of the slot respectively.

4. The modular rudder blade for easy disassembly and maintenance according to claim 3, characterized in that: The connecting rod also includes anti-loosening slots respectively opened at the ends of the main connecting rod and the auxiliary connecting rod, and slots opened on the left and right inner walls of the anti-loosening slots; the anti-loosening block is inserted into the anti-loosening slot, and the claw is also inserted into the slot.

5. The modular rudder blade for easy disassembly and maintenance according to claim 4, characterized in that: The front side of the anti-loosening plug is inclined, so that the distance between the front and rear of the anti-loosening plug gradually decreases from top to bottom.

6. The modular rudder blade for easy disassembly and maintenance according to claim 3, characterized in that: The anti-loosening device also includes two anti-loosening rods that are respectively connected to the top of the anti-loosening block and extend downward in a curved shape from the top of the anti-loosening block.

7. The modular rudder blade for easy disassembly and maintenance according to claim 6, characterized in that: The locking device also includes an anti-loosening ring sleeve connected to the front end of the hexagonal nut and an anti-loosening ring groove circumferentially opened along the side of the anti-loosening ring sleeve; two anti-loosening rods are inserted downward into the anti-loosening ring groove.

8. The modular rudder blade for easy disassembly and maintenance according to claim 7, characterized in that: The width of the anti-loosening groove is equal to the diameter of the anti-loosening rod.

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