Quick-mounting light-weight rudder system base

By introducing a combination structure of rectangular bars, fixed frames, and T-shaped rods into the quick-install lightweight rudder system base, the radial runout problem during rudder shaft rotation was solved, achieving stable operation and lightweight design of the rudder shaft, and improving the safety and stability of ship navigation.

CN224375876UActive Publication Date: 2026-06-19QINGDAO HAOLONGYUAN DETONG MASCH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO HAOLONGYUAN DETONG MASCH CO LTD
Filing Date
2025-09-05
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

When using a quick-install lightweight rudder base, radial runout is prone to occur during rudder shaft rotation, affecting the stability of the rudder shaft and the safety of ship navigation.

Method used

The structure employs a combination of components such as rectangular bars, fixed frames, T-shaped rods, and ring blocks to constrain and limit the radial displacement of the rudder shaft through multiple parts. Combined with a base design made of lightweight, high-strength materials, the overall weight is reduced to meet the requirements for lightweighting.

Benefits of technology

It effectively solves the problem of radial runout during rudder shaft rotation, improves the operational stability of the rudder shaft and the reliability of the rudder system, enhances the safety and stability of ship navigation, and meets the requirements of lightweight design.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of rudder system base technology, and more particularly to a quick-installation lightweight rudder system base, including a base body and a rudder shaft. Multiple rectangular strips arranged in a circular array are fixedly connected to the outer surface of the rudder shaft. An inner cylinder is rotatably connected to the base body. Multiple hollow grooves are formed on both the base body and the inner cylinder. An annular groove is formed on the inner wall of the inner cylinder, and an annular plate is fixedly connected within the annular groove. An annular block is rotatably connected to the annular plate. Multiple limiting grooves are formed on the lower inner wall of the annular groove, and a T-shaped rod is slidably installed in each limiting groove. A rotating shaft is fixedly connected to the T-shaped rod, and a rotating component is provided on the rotating shaft. This utility model makes the rudder shaft operation more stable, facilitates the normal functioning of the rudder shaft, ensures the reliable operation of the rudder system, and thus improves the safety and stability of rudder system operation during ship navigation.
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Description

Technical Field

[0001] This utility model relates to the field of rudder base technology, and in particular to a quick-install lightweight rudder base. Background Technology

[0002] With the continuous development of society and the continuous progress of science and technology, the technology related to rudder system bases is also constantly improving. The rudder system is a key system for ship steering, including components such as rudder gear, rudder shaft, and rudder blade. The primary function of quick-installation lightweight rudder system base is to provide stable mechanical support for these components, ensuring that they do not shift or deform during ship navigation.

[0003] Currently, when using the quick-install lightweight rudder base, after the quick-install lightweight rudder base is connected to the rudder shaft, radial runout is prone to occur during the rotation of the rudder shaft, which is not conducive to the use of the rudder shaft. Utility Model Content

[0004] The purpose of this utility model is to solve the following shortcomings in the existing technology: when using the quick-install lightweight rudder system base, after the quick-install lightweight rudder system base and the rudder shaft are connected, radial runout is prone to occur during the rotation of the rudder shaft, which is not conducive to the use of the rudder shaft. Therefore, a quick-install lightweight rudder system base is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A quick-install lightweight rudder base includes a base body and a rudder shaft. The outer surface of the rudder shaft is fixedly connected with a plurality of rectangular strips arranged in a ring array. An inner cylinder is rotatably connected to the base body. Both the base body and the inner cylinder are provided with a plurality of hollowed-out grooves. An annular groove is provided on the inner wall of the inner cylinder. An annular plate is fixedly connected in the annular groove. An annular block is rotatably connected to the annular plate.

[0007] The lower inner wall of the annular groove is provided with multiple limiting grooves, and a T-shaped rod is slidably installed in each limiting groove. A rotating shaft is fixedly connected to the T-shaped rod, and a rotating assembly is provided on the rotating shaft. The rotating assembly includes a rotating plate rotatably installed on the upper end of the rotating shaft. The rotating plate and the annular block are rotatably connected. A fixing frame is fixedly connected to one end of each T-shaped rod, and a groove for connecting the rectangular strip is provided on the fixing frame.

[0008] Preferably, the inner cylinder has an arc-shaped opening communicating with the annular groove, an L-shaped strip is slidably connected inside the arc-shaped opening, the L-shaped strip is fixedly connected to the annular block, a round hole is opened on the L-shaped strip, and a bolt is threaded onto the inner cylinder.

[0009] Preferably, a rubber ring is fixedly connected to the upper surface of the L-shaped strip, and the rubber ring is sleeved on the outside of the circular hole.

[0010] Preferably, an annular T-groove is formed on the outer surface of the inner cylinder, and a convex block is slidably connected in the annular T-groove, the convex block being fixedly connected to the base body.

[0011] Preferably, the lower surface of the annular block is fixedly connected to multiple fixed shafts, and each rotating piece is rotatably connected to the corresponding fixed shaft.

[0012] Preferably, the upper and lower end faces of the base body are provided with multiple mounting holes, and the multiple mounting holes are arranged symmetrically.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] By setting up a series of components such as rectangular bars, fixed frames, T-shaped rods, and ring blocks, the radial displacement of the rudder shaft is constrained and limited from multiple parts during the rotation of the rudder shaft. This effectively solves the problem of radial runout that easily occurs when the rudder shaft rotates in the quick-installation lightweight rudder system base, making the rudder shaft operation more stable, which is conducive to the normal functioning of the rudder shaft, ensuring the reliable operation of the rudder system, and thus improving the safety and stability of the rudder system operation during ship navigation.

[0015] Multiple hollowed-out grooves are opened on the base body and inner cylinder, and each component is made of lightweight and high-strength materials, which effectively reduces the weight of the entire rudder system base, meets the requirements of lightweight design, and can reduce the impact on the overall load and navigation performance of the ship. Attached Figure Description

[0016] Figure 1 This is a front structural diagram of a quick-installation lightweight rudder system base proposed in this utility model.

[0017] Figure 2 This is a side view of a quick-installation lightweight rudder system base proposed in this utility model.

[0018] Figure 3 This is a side internal structure diagram of a quick-installation lightweight rudder system base proposed in this utility model.

[0019] Figure 4 This is a partial three-dimensional structural diagram of the fixed frame and rotating assembly in this utility model.

[0020] In the diagram: 1. Base body, 2. Inner cylinder, 3. Rudder shaft, 4. Mounting hole, 5. Fixing frame, 6. Bolt, 7. L-shaped strip, 8. Rubber ring, 9. Rectangular strip, 10. Arc-shaped opening, 11. Convex block, 12. Annular plate, 13. Annular block, 14. Rotating plate, 15. T-shaped rod, 16. Rotating shaft. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] The terms used in this utility model, such as "upper", "lower", "left", "right", "middle" and "one", are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0023] Reference Figures 1-4 A quick-installation lightweight rudder base includes a base body 1 and a rudder shaft 3. The base body 1 is made of lightweight, high-strength aluminum alloy. Multiple rectangular strips 9 arranged in a circular array are fixedly connected to the outer surface of the rudder shaft 3. An inner cylinder 2 is rotatably connected inside the base body 1. The inner cylinder 2 is also made of a suitable lightweight material. Multiple perforated slots are provided on both the base body 1 and the inner cylinder 2 to achieve weight reduction, reducing weight by 20%. Annular grooves are provided on the inner wall of the inner cylinder 2. An annular plate 12 is fixedly connected, and an annular block 13 is rotatably connected to the annular plate 12. Multiple limiting grooves are provided on the lower inner wall of the annular groove. A T-shaped rod 15 is slidably installed in each limiting groove. A rotating shaft 16 is fixedly connected to the T-shaped rod 15. A rotating assembly is provided on the rotating shaft 16. The rotating assembly includes a rotating piece 14 rotatably installed on the upper end of the rotating shaft 16. The rotating piece 14 and the annular block 13 are rotatably connected. A fixing frame 5 is fixedly connected to one end of each T-shaped rod 15. A groove for connecting a rectangular strip 9 is provided on the fixing frame 5.

[0024] refer to Figure 1 The inner cylinder 2 has an arc-shaped opening 10 that communicates with the annular groove. The arc-shaped opening 10 provides space for the sliding of the L-shaped strip 7 and subsequent operations. The L-shaped strip 7 is slidably connected inside the arc-shaped opening 10. The L-shaped strip 7 is fixedly connected to the annular block 13. The L-shaped strip 7 has a round hole. The inner cylinder 2 is threaded with a bolt 6. The upper surface of the L-shaped strip 7 is fixedly connected with a rubber ring 8. The rubber ring 8 is sleeved on the outside of the round hole. One end of the bolt 6 passes through the round hole and is threadedly connected to the inner cylinder 2 until the surface of the bolt 6 and the rubber ring 8 are tightly attached. This can effectively prevent the L-shaped strip 7 from sliding inside the arc-shaped opening 10.

[0025] refer to Figure 3The outer surface of the inner cylinder 2 is provided with an annular T-groove, and a convex block 11 is slidably connected in the annular T-groove. The convex block 11 is fixedly connected to the base body 1. The convex block 11 is rotatably installed in the annular T-groove, which can restrict the movement trajectory of the inner cylinder 2, so that the central axis of the inner cylinder 2 always coincides with the central axis of the base body 1, and the inner cylinder 2 can rotate stably relative to the base body 1.

[0026] refer to Figure 4 The lower surface of the annular block 13 is fixedly connected to multiple fixed shafts, and each rotating piece 14 is rotatably connected to the corresponding fixed shaft.

[0027] refer to Figure 1 The base body 1 has multiple mounting holes 4 on both the upper and lower end faces. The mounting holes 4 are symmetrically arranged and are used for subsequent connection with structures such as the hull.

[0028] In this invention, a rudder shaft 3 with rectangular bars 9 is placed inside the inner cylinder 2. Each rectangular bar 9 is located on the opposite side of each fixed frame 5. Then, the L-shaped bar 7 is rotated, and the L-shaped bar 7 slides along the arc-shaped opening 10, thereby causing the annular block 13 and the annular plate 12 to rotate relative to each other. During this process, each rotating piece 14 rotates relative to the corresponding rotating shaft 16 and the fixed shaft. The tilt angle of the rotating piece 14 changes, thereby pushing each T-shaped rod 15 to slide along the limiting groove until the grooves on each fixed frame 5 are respectively engaged with the corresponding rectangular bars 9. Then, one end of the bolt 6 is passed through the round hole and threaded to the inner cylinder 2 until the surface of the bolt 6 and the rubber ring 8 are tightly attached, effectively preventing the L-shaped bar 7 from sliding in the arc-shaped opening 10.

[0029] When the rudder shaft 3 rotates, the rectangular strip 9 on its outer surface drives the fixed frame 5 to move. The fixed frame 5 transmits the rotation to the annular block 13 through components such as the T-shaped rod 15, the rotating shaft 16, and the rotating plate 14. At the same time, the inner cylinder 2 can rotate relative to the base body 1, thereby realizing the rotation function of the rudder shaft 3 relative to the base body 1 and meeting the normal steering operation requirements of the rudder system. During the rotation of the rudder shaft 3, the rectangular strip 9 cooperates with the groove of the fixed frame 5 to restrict the large-scale movement of the rudder shaft 3 in the radial direction, that is, in the direction perpendicular to the axis of the rudder shaft 3. The T-shaped rod 15 cannot slide in the limiting groove at this time, further constraining its radial displacement. The cooperation of components such as the annular block 13 and the rotating plate 14 also plays a stabilizing role in the radial direction of the entire transmission and support structure, effectively reducing the radial runout when the rudder shaft 3 rotates and ensuring the stable operation of the rudder shaft 3.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "linking", "fixing", etc., should be interpreted broadly. For example, they can refer to fixed connection, detachable connection, or integral connection; they can refer to mechanical connection or electrical connection; they can refer to direct connection or indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A quick-install lightweight rudder system base, comprising a base body (1) and a rudder shaft (3), characterized in that, The outer surface of the rudder shaft (3) is fixedly connected with a plurality of rectangular strips (9) arranged in a ring array. The base body (1) is rotatably connected with an inner cylinder (2). Both the base body (1) and the inner cylinder (2) are provided with a plurality of hollow grooves. The inner wall of the inner cylinder (2) is provided with an annular groove. An annular plate (12) is fixedly connected in the annular groove. An annular block (13) is rotatably connected on the annular plate (12). The lower inner wall of the annular groove is provided with multiple limiting grooves, and a T-shaped rod (15) is slidably installed in each limiting groove. A rotating shaft (16) is fixedly connected to the T-shaped rod (15), and a rotating assembly is provided on the rotating shaft (16). The rotating assembly includes a rotating piece (14) rotatably installed on the upper end of the rotating shaft (16). The rotating piece (14) and the annular block (13) are rotatably connected. A fixing frame (5) is fixedly connected to one end of each T-shaped rod (15), and a groove for connecting the rectangular strip (9) is provided on the fixing frame (5).

2. The quick-installation lightweight rudder system base according to claim 1, characterized in that, The inner cylinder (2) has an arc-shaped opening (10) that communicates with the annular groove. An L-shaped strip (7) is slidably connected inside the arc-shaped opening (10). The L-shaped strip (7) is fixedly connected to the annular block (13). A round hole is opened on the L-shaped strip (7). A bolt (6) is threadedly connected to the inner cylinder (2).

3. The quick-installation lightweight rudder system base according to claim 2, characterized in that, A rubber ring (8) is fixedly connected to the upper surface of the L-shaped strip (7), and the rubber ring (8) is sleeved on the outside of the circular hole.

4. The quick-installation lightweight rudder system base according to claim 1, characterized in that, The outer surface of the inner cylinder (2) is provided with an annular T-groove, and a convex block (11) is slidably connected in the annular T-groove. The convex block (11) and the base body (1) are fixedly connected.

5. The quick-installation lightweight rudder system base according to claim 1, characterized in that, The lower surface of the annular block (13) is fixedly connected to multiple fixed shafts, and each of the rotating pieces (14) is rotatably connected to the corresponding fixed shaft.

6. The quick-installation lightweight rudder system base according to claim 1, characterized in that, The base body (1) has multiple mounting holes (4) on its upper and lower end faces, and the multiple mounting holes (4) are arranged symmetrically.