Marine manpower steering engine system
By adopting a rigid connection structure in the marine human-powered steering gear system, the problems of laborious operation and chain loosening in traditional systems have been solved, achieving labor-saving operation and extended service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGXI WUZHOU YUNLONG PORT & SHIP MACHINERY MFG
- Filing Date
- 2025-04-15
- Publication Date
- 2026-04-28
AI Technical Summary
Traditional marine manual steering systems are labor-intensive to operate and the chain belts are prone to loosening, affecting their service life.
It adopts rigid components and rigid connection structures such as steering gear, rocker arm shaft, rocker arm, transmission rod and pusher, and drives the rudder blade through rigid connection, replacing the traditional gear belt and chain belt control method.
This makes operation easier and more convenient, extends the service life of the servo system, and improves response efficiency.
Smart Images

Figure CN224171158U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of marine steering gear systems, and more specifically, to a marine manual steering gear system. Background Technology
[0002] The steering system is a device used on ships to change and maintain their course. It consists of a rudder blade and a rudder stock. When a ship is sailing, the water current generates a lateral force on the rudder blade. Rotating the rudder blade according to the ship's course generates a turning torque, allowing the ship to maintain the desired course.
[0003] Traditional marine human-powered steering systems, such as the marine rudder system disclosed in patent publication number CN202923878U, include a rudder blade, a rudder support, and a rudder shaft. The rudder support is equipped with a bogie for controlling the rudder blade's direction. The bogie is connected to a bevel gear transmission mechanism, which is connected to a shaft mounted on a steering wheel via a chain drive. The rudder blade is movably hinged to the lower part of the rudder support. The advantages of this invention are: with the rudder blade movably hinged to the lower part of the rudder support, when the sailboat approaches shore or near a reef, any rudder blade that is hit will rotate and lift around the hinged pin, reducing the risk of collision damage; the bogie has multiple positioning holes, which are detachably connected to the transmission frame on the bevel gear transmission mechanism via positioning pins, allowing for adjustable rudder blade mounting height.
[0004] Traditional marine manual steering systems control the rudder blades using gear belts and chains. In practical applications, this is labor-intensive, and the chains are prone to loosening and failure, thus affecting the system's lifespan. Therefore, a novel marine manual steering system is designed. Utility Model Content
[0005] The technical problem to be solved by this utility model is to address the above-mentioned shortcomings of the prior art by providing a marine manual steering gear system. Through rigid connection of the transmission rudder blade, the operation is more labor-saving and convenient, and the service life of the steering gear system is effectively extended.
[0006] The technical solution of this utility model is as follows: A marine human-powered steering gear system includes a steering wheel, a steering mechanism, a rudder handle, a rocker arm support, and a steering handle. The steering mechanism is fixedly mounted on the hull, the rudder handle is fixedly mounted on the rudder stock, the rocker arm support is fixedly mounted on the hull, and the steering handle is rotatably mounted on the hull. The steering wheel is fixedly connected to the input end of the steering mechanism, and the output end of the steering mechanism is fixedly connected to a rocker arm shaft. The rocker arm shaft is rotatably mounted on the rocker arm support, and the other end of the rocker arm shaft is also fixedly connected to a rocker arm. A transmission rod is connected between the rocker arm and the steering handle, and both ends of the transmission rod are hinged to the rocker arm and the steering handle, respectively. A pusher is connected between the steering handle and the rudder handle, and both ends of the pusher are hinged to the steering handle and the rudder handle, respectively.
[0007] As a further improvement, the output end of the steering gear is connected to the rocker arm shaft via a connecting flange.
[0008] Furthermore, the axis of the rocker arm is perpendicular to the axis of the rocker arm shaft, and the axis of the transmission rod is perpendicular to the axis of the pusher.
[0009] Furthermore, the steering handle is a triangular plate, the right angle of which is rotatably mounted on the hull via the steering handle shaft, and the two sides of the triangular plate are respectively hinged to the transmission rod and the pusher.
[0010] Furthermore, symmetrically arranged limiting blocks are provided on the hull on both sides of the rudder handle.
[0011] Furthermore, the angle between the limiting block and the axis of the rudder is 36.5°.
[0012] Furthermore, the rudder handle is also equipped with an arc-shaped scale, and a pointer is provided on the hull outside the rudder handle.
[0013] Beneficial effects
[0014] Compared with the prior art, this utility model has the following advantages:
[0015] This utility model discloses a marine manual steering gear system. It replaces the traditional gear belt and chain belt control impeller method with rigid components and a rigid connection structure, including a steering gear, rocker arm shaft, rocker arm, transmission rod, and pusher. In actual operation, the crew turns the steering wheel, providing an input torque to the steering gear. This input torque is then proportionally amplified and output through the internal transmission structure of the steering gear. The output torque then drives the rocker arm to swing via the rocker arm shaft, converting the output torque into thrust, which is transmitted to the transmission rod. The transmission rod, through a rigid connection, transmits the thrust to the steering handle. The steering handle adjusts the thrust by 90° and transmits it to the pusher. The pusher then rigidly transmits the thrust to the rudder handle, converting it into torque. The rudder handle then drives the rudder stock to rotate, which in turn drives the rudder blade. This steering gear system uses a rigid connection to drive the rudder blade, making operation more effortless and convenient, and effectively extending the service life of the steering gear system. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structural principle of this utility model.
[0017] The components are: 1-steering wheel, 2-steering gear, 3-steer handle, 4-rocker arm support, 5-steering stick, 6-steer stick, 7-rocker arm shaft, 8-rocker arm, 9-drive rod, 10-push block, 11-connecting flange, 12-limit block, 13-scale, 14-pointer. Detailed Implementation
[0018] The present invention will be further described below with reference to specific embodiments shown in the accompanying drawings.
[0019] See Figure 1This utility model discloses a marine human-powered steering gear system, including a steering wheel 1, a steering mechanism 2, a rudder handle 3, a rocker arm support 4, and a steering stick 5. The steering mechanism 2 is a conventional automotive steering mechanism with a built-in transmission structure, such as a gearbox, which will not be elaborated here. The steering mechanism 2 can also be a reduction gearbox. The steering mechanism 2 is fixedly mounted on the hull. The rudder handle 3 is fixedly mounted on the rudder stock 6. Rotation of the rudder handle 3 drives rotation of the rudder stock 6. The rudder stock 6 is connected to the rudder blade, and rotation of the rudder stock 6 drives rotation of the rudder blade. The rocker arm support 4 is fixedly mounted on the hull. The steering handle 5 is rotatably mounted on the hull. The steering wheel 1 is fixedly connected to the input end of the steering gear 2. The output end of the steering gear 2 is fixedly connected to the rocker arm shaft 7, which is rotatably mounted on the rocker arm support 4. The rocker arm shaft 7 can be connected to the rocker arm support 4 via a bearing, and the other end of the rocker arm shaft 7 is also fixedly connected to the rocker arm 8. A transmission rod 9 is connected between the rocker arm 8 and the steering handle 5, and both ends of the transmission rod 9 are hinged to the rocker arm 8 and the steering handle 5, respectively. A pusher 10 is connected between the steering handle 5 and the rudder handle 3, and both ends of the pusher 10 are hinged to the steering handle 5 and the rudder handle 3, respectively. Specifically, both ends of the transmission rod 9 and the pusher 10 are fork-shaped structures, and the fork-shaped structures are hinged to the rocker arm 8, the steering handle 5, and the rudder handle 3 via pins, respectively. The rocker arm 8, transmission rod 9, and push iron 10 are on the same plane. The axis of the rocker arm 8 is perpendicular to the axis of the rocker arm shaft 7, and the axis of the transmission rod 9 is perpendicular to the axis of the push iron 10, thus realizing the reversal of force.
[0020] Preferably, the output end of the steering gear 2 is connected to the rocker arm shaft 7 via the connecting flange 11, thereby realizing a detachable connection between the steering gear 2 and the rocker arm shaft 7.
[0021] Preferably, the steering handle 5 is a triangular plate, and the right angle of the triangular plate is rotatably mounted on the hull via the steering handle shaft. The two sides of the triangular plate are respectively hinged to the transmission rod 9 and the push iron 10, which can realize the torque switching of 90°.
[0022] This utility model discloses a marine human-powered steering gear system. It replaces the traditional gear belt and chain belt control impeller method with rigid components and rigid connection structures such as steering gear 1, rocker arm shaft 7, rocker arm 8, transmission rod 9, and pusher 10. In actual operation, the crew turns the steering wheel 1, providing an input torque to the steering gear 2. This input torque is then proportionally amplified and output through the internal transmission structure of the steering gear 2. The output torque then drives the rocker arm 8 to swing through the rocker arm shaft 7, converting the output torque into thrust, which is transmitted to the transmission rod 9. The transmission rod 9 also transmits the thrust through a rigid connection. The thrust is adjusted by 90° to the steering handle 5 and transmitted to the push iron 10. The push iron 10 then rigidly transmits the thrust to the rudder handle 3 and converts it into torque. The rudder handle 3 then drives the rudder stick 6 to rotate, which in turn drives the rudder blade to rotate. This steering gear system uses a rigid connection to drive the rudder blade, making operation more labor-saving and convenient, and effectively extending the service life of the steering gear system. During the effectiveness test, this manual steering gear system was flexible and easy to operate. When the ship was at its maximum speed with full load draft, the time required to move from 35° on one side to 30° on the other side did not exceed 20 seconds, which is a fast response efficiency.
[0023] Preferably, symmetrically arranged limiting blocks 12 are provided on the hull on both sides of the rudder handle 3 to limit the rotation angle of the rudder handle 3. Further, the angle between the limiting block 12 and the axis of the rudder handle 3 is 36.5°, meeting the design requirements of the CCS "Code for Construction of Steel Inland Waterway Vessels". Even further, an arc-shaped scale 13 is provided on the rudder handle 3, and a pointer 14 is provided on the hull outside the rudder handle 3 to facilitate understanding the rotation angle of the rudder handle 3.
[0024] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present utility model, and these will not affect the implementation effect of the present utility model or the practicality of the patent.
Claims
1. A marine human-powered steering system, comprising a steering wheel (1), characterized in that, It also includes a steering gear (2), a rudder (3), a rocker arm support (4), and a steering handle (5). The steering gear (2) is fixedly mounted on the hull, the rudder (3) is fixedly mounted on the rudder stock (6), the rocker arm support (4) is fixedly mounted on the hull, and the steering handle (5) is rotatably mounted on the hull. The steering wheel (1) is fixedly connected to the input end of the steering gear (2), and the output end of the steering gear (2) is fixedly connected to a rocker arm shaft (7). The rocker arm shaft (7) rotates. The rocker arm (7) is mounted on the rocker arm support (4) and the other end of the rocker arm shaft (7) is fixedly connected to the rocker arm (8). A transmission rod (9) is connected between the rocker arm (8) and the steering handle (5). The two ends of the transmission rod (9) are respectively hinged to the rocker arm (8) and the steering handle (5). A push iron (10) is connected between the steering handle (5) and the rudder handle (3). The two ends of the push iron (10) are respectively hinged to the steering handle (5) and the rudder handle (3). The steering gear (2) is a reduction gearbox.
2. The marine human-powered steering gear system according to claim 1, characterized in that, The output end of the steering gear (2) is connected to the rocker arm shaft (7) via a connecting flange (11).
3. A marine human-powered steering gear system according to claim 1, characterized in that, The axis of the rocker arm (8) is perpendicular to the axis of the rocker arm shaft (7), and the axis of the transmission rod (9) is perpendicular to the axis of the push iron (10).
4. A marine human-powered steering gear system according to claim 1, characterized in that, The steering handle (5) is a triangular plate. The right angle of the triangular plate is rotatably mounted on the hull via the steering handle shaft. The two sides of the triangular plate are respectively hinged to the transmission rod (9) and the push iron (10).
5. A marine human-powered steering gear system according to any one of claims 1-4, characterized in that, The hull on both sides of the rudder handle (3) is also provided with symmetrically arranged limiting blocks (12).
6. A marine human-powered steering gear system according to claim 5, characterized in that, The angle between the centerline of the limiting block (12) and the rudder (3) is 36.5°.
7. A marine human-powered steering gear system according to claim 5, characterized in that, The rudder (3) is also provided with an arc-shaped scale (13), and a pointer (14) is provided on the hull outside the rudder (3).
Citation Information
Patent Citations
Ship rudder system
CN202923878U