A steering wheel angle sensor mounting assembly for old ship retrofit

Abstract

The utility model relates to ship operating control system technical field, concretely is a rudder engine hand wheel angle sensor installation assembly for old ship reconstruction has solved the problem that the background art has proposed, it includes including installation support, angle sensor and intermeshing driving gear and driven gear. The installation support is detachably fixed on the back of hand wheel, the angle sensor is fixed on the installation support, the driving gear is arranged on the pivot of hand wheel, the driven gear is arranged on the pivot of angle sensor. The utility model through the modular mechanical structure, with non -invasive mode reliably adds angle sensor in old ship original hand wheel, realizes the accurate collection of rudder angle given signal, simple structure, convenient installation provides effective solution for the recovery follow -up rudder function.

Description

Technical Field

[0001] This utility model relates to the field of ship handling and control system technology, specifically to a steering gear handwheel angle sensor mounting assembly for retrofitting old ships. Background Technology

[0002] Currently, many older vessels in service have outdated or unreliable servo steering systems due to aging equipment, manufacturer shutdowns, and lack of spare parts. Restoring convenient and precise servo steering functionality is crucial for improving ship handling efficiency and navigation safety. The core principle of a servo steering system lies in accurately acquiring the angle command signals issued by the helmsman through the helmsman's wheel.

[0003] For old ship renovation projects, completely replacing the entire steering system is costly, involves a large amount of work, and has a long timeframe. The ideal solution is to retain the original steering handwheel and its appearance to maintain the operator's operating habits and the ship's internal appearance, while adding new sensors and control units. However, the biggest technical challenge lies in how to reliably and accurately install angle sensors for detecting handwheel rotation without cutting, welding, or other destructive modifications to the original handwheel structure. The internal space of the original handwheel is usually compact, its transmission mechanism is mostly enclosed, and the handwheel structure varies between different ship types and models, lacking standardized installation interfaces. This makes it extremely difficult to directly integrate off-the-shelf angle sensors. Utility Model Content

[0004] To solve the above problems, this utility model provides the following technical solution: a steering gear handwheel angle sensor mounting assembly for old ship retrofitting, including a mounting bracket, an angle sensor, and a meshing drive gear and a driven gear; The mounting bracket is provided with a first mounting part for detachably fixing it to a preset mounting position on the back of the handwheel or to a nearby bulkhead; The angle sensor is fixed on the mounting bracket; The drive gear is fixedly mounted on the shaft of the handwheel; The driven gear is fixedly mounted on the rotating shaft of the angle sensor.

[0005] Furthermore, the angle sensor is a rotary potentiometer.

[0006] Furthermore, the model of the angle sensor is the same as the model of the feedback potentiometer installed on the servo feedback unit.

[0007] Furthermore, the mounting bracket is installed by fixing it with screws.

[0008] Furthermore, the driven gear is a matching gear customized based on the module and tooth profile of the driving gear.

[0009] Furthermore, the angle sensor is configured to output its electrical signal to a servo control board as a rudder angle setpoint signal.

[0010] Compared with the prior art, the beneficial effects of this utility model are: Through a modular structure consisting of a mounting bracket, an angle sensor, and meshing gears, and employing a detachable mechanical connection, the angle sensor can be reliably mounted on the back of the handwheel without structural modifications to the original handwheel. This enables precise acquisition of the rudder angle command signal. The assembly is simple in structure and easy to install. Furthermore, by ensuring that the potentiometer model of the angle sensor is consistent with that of the rudder feedback unit, the system design is simplified, and the consistency and interchangeability of the signal are improved. This provides an effective and practical solution for the restoration and upgrading of the rudder system of old ships. Attached Figure Description

[0011] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall isometric view structure of this utility model.

[0012] In the diagram: 1. Mounting bracket; 2. Angle sensor; 3. Drive gear; 4. Driven gear; 10. Handwheel; 20. Servo feedback unit; 30. Follow-up control board. Detailed Implementation

[0013] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0014] like Figure 1 As shown, the steering gear handwheel angle sensor mounting assembly for old ship retrofitting in this embodiment includes a mounting bracket 1, an angle sensor 2, and a driving gear 3 and a driven gear 4 that mesh with each other. The mounting bracket 1 is provided with a first mounting part for detachably fixing it to a preset mounting position on the back of the handwheel 10 or to a nearby bulkhead; Angle sensor 2 is fixed on mounting bracket 1; The drive gear 3 is used to be fixedly installed on the shaft of the handwheel 10; The driven gear 4 is fixedly mounted on the rotating shaft of the angle sensor 2.

[0015] Angle sensor 2 is a rotary potentiometer. As a mature, reliable, and low-cost angle-to-voltage conversion element, the rotary potentiometer has a simple technical principle, good linearity, and convenient signal processing. It can provide a stable and easy-to-process analog voltage signal for this system, thereby improving the system's reliability and economy.

[0016] The model of angle sensor 2 is the same as that of the feedback potentiometer installed on the servo feedback unit 20, which simplifies the signal processing circuit and calibration procedure of the subsequent follow-up control board 30, improves the overall control accuracy of the system, and makes the sensor components interchangeable, reducing the complexity of spare parts inventory and maintenance.

[0017] Mounting bracket 1 is installed by screw fixing, which facilitates installation and disassembly.

[0018] Driven gear 4 is a matching gear customized based on the module and tooth profile of driving gear 3. By customizing the matching gear, it can be ensured that driving gear 3 and driven gear 4 achieve backlash-free, smooth and accurate meshing transmission.

[0019] Angle sensor 2 is configured to output its electrical signal to a servo control board 30 as a rudder angle setpoint signal, which clarifies the functional positioning and interface relationship of the mounting assembly in the complete control system.

[0020] The working principle of this utility model is as follows: When the driver turns the steering wheel 10, the handwheel shaft drives the drive gear 3 on it to rotate together. The drive gear 3 drives the driven gear 4 through meshing, thereby causing the shaft of the angle sensor 2 (rotary potentiometer) fixed on the same shaft to rotate synchronously and proportionally.

[0021] Angle sensor 2 converts the mechanical rotation angle at this time into a corresponding, continuous analog voltage signal (i.e., rudder angle setpoint signal), and sends the signal to the follow-up control board 30 in real time via cable.

[0022] The servo control board 30 compares the received given signal with the actual rudder angle feedback signal from the servo feedback unit 20. If there is a deviation (i.e., the given rudder angle does not match the actual rudder angle), the servo control board 30 will generate a corresponding control command to drive the servo until the actual rudder angle matches the target rudder angle given by the handwheel, and the deviation is eliminated.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A steering gear handwheel angle sensor mounting assembly for retrofitting old ships, characterized in that, It includes a mounting bracket (1), an angle sensor (2), and a meshing drive gear (3) and driven gear (4); The mounting bracket (1) is provided with a first mounting part for detachably fixing it to a preset mounting position on the back of the handwheel (10) or a nearby bulkhead; The angle sensor (2) is fixed on the mounting bracket (1); The drive gear (3) is used to be fixedly installed on the shaft of the handwheel (10); The driven gear (4) is fixedly mounted on the rotating shaft of the angle sensor (2).

2. The steering gear handwheel angle sensor mounting assembly for old ship retrofitting according to claim 1, characterized in that: The angle sensor (2) is a rotary potentiometer.

3. The steering gear handwheel angle sensor mounting assembly for old ship retrofitting according to claim 2, characterized in that: The model of the angle sensor (2) is the same as that of the feedback potentiometer installed on the servo feedback unit (20).

4. The steering gear handwheel angle sensor mounting assembly for old ship retrofitting according to claim 1, characterized in that: The mounting bracket (1) is installed by fixing with screws.

5. The steering gear handwheel angle sensor mounting assembly for old ship retrofitting according to claim 1, characterized in that: The driven gear (4) is a matching gear customized according to the module and tooth profile of the driving gear (3).

6. The steering gear handwheel angle sensor mounting assembly for old ship retrofitting according to claim 1, characterized in that: The angle sensor (2) is configured to output its electrical signal to a servo control board (30) as a rudder angle setpoint signal.

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