Marine high-precision electronic actuator

Abstract

The utility model belongs to the technical field of marine electromechanical control, and discloses a marine high-precision electronic actuator which comprises a shell. An indication structure is arranged on the peripheral wall of the shell; the integrated electromechanical driving module is mounted in the shell; the integrated electromechanical driving module is connected with a pointer arranged on the outer side of the shell, the swing amplitude of the indicating structure is controlled, and the position deviation and the correction effect are visually observed. The control unit is electrically connected with the integrated electromechanical driving module and is used for controlling and adjusting the movement of the integrated electromechanical driving module; and the photoelectric sensor is electrically connected with the control unit, converts the received optical signal into an electric signal and transmits the electric signal to the control unit. According to the marine actuator, the integrated electromechanical driving module is arranged, so that the marine actuator which is high in precision, quick in response and energy-saving is provided, and the problems that an actuating mechanism is low in reliability and insufficient in control precision in the marine environment are solved.

Description

Technical Field

[0001] This utility model belongs to the field of marine electromechanical control technology, specifically relating to a high-precision actuator for the rail pressure control of a ship's key system engine, which is particularly suitable for scenarios requiring high reliability and dynamic response in harsh marine environments. Background Technology

[0002] Marine actuators need to operate for extended periods under harsh conditions of high temperature, high humidity, high salt spray, and continuous vibration. Existing technologies have the following problems:

[0003] Insufficient precision: Traditional hydraulic or pneumatic actuators are affected by media fluctuations, and the position control error often exceeds ±1.5%, which is difficult to meet the requirements of precision control;

[0004] Slow dynamic response: The mechanical transmission chain is too long to meet the emergency maneuvering needs of ships.

[0005] Low energy efficiency: Traditional actuators consume a lot of energy, which is not compatible with the trend of greening ships. Utility Model Content

[0006] To address the aforementioned problems, this utility model provides a high-precision electronic actuator for marine applications.

[0007] Compared to existing technologies, this utility model provides a high-precision electronic actuator for marine applications, comprising:

[0008] The housing; pointers are provided on the peripheral walls of the housing;

[0009] An integrated joint module is installed inside the housing and has a first output shaft; a second drive shaft is connected between the first output shaft and the pointer.

[0010] The control unit is electrically connected to the integrated joint module to control and adjust the movement of the integrated joint module; the photoelectric sensor is electrically connected to the control unit to convert the received light signals into electrical signals and transmit them to the control unit.

[0011] According to this utility model, the control panel further includes a closed-loop control unit and integrates a high-resolution encoder.

[0012] According to this utility model, the second output shaft passes through the outer peripheral wall of the housing on the corresponding side and is connected to the pointer to realize the direct transmission of motion.

[0013] According to this utility model, the integrated joint module is a motor assembly, and the first output shaft of the motor assembly is connected to the second output shaft. The first output shaft transmits power to the second output shaft, and then transmits power to the pointer.

[0014] According to this utility model, the outer peripheral wall of the housing is further provided with a scale, which makes it easy to see the changes in the pointer scale.

[0015] According to this utility model, the motor drive circuit further adopts a SiC MOSFET module.

[0016] According to this utility model, the peripheral wall of the shell is provided with a plurality of stuffing glands.

[0017] According to this utility model, a light guide rod is further provided on the outer side of the housing to transmit light signals to the photoelectric sensor, and the light guide rod emits light signals to the photoelectric sensor.

[0018] According to this utility model, the integrated joint module is a planetary gear reducer for position positioning.

[0019] According to this utility model, the integrated joint module is a magnetoelectric encoder used for position positioning.

[0020] To achieve the above objectives, compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a high-precision, fast-response, and energy-saving marine actuator by setting an integrated electromechanical drive module, solving the problems of low reliability and insufficient control precision of actuators in marine environments.

[0021] This invention eliminates the gearbox, removes backlash error, and improves calibration accuracy by using an integrated joint module (including a brushless motor, a planetary gear reducer, and a magneto-electric encoder for position positioning).

[0022] This invention integrates a high-resolution encoder to further efficiently correct position deviations in real time, achieving a control accuracy of ≤±0.3%. Attached Figure Description

[0023] Figure 1 This is a first-view structural schematic diagram of the high-precision electronic actuator for marine applications according to this utility model.

[0024] Figure 2 This is a second-view structural schematic diagram of the marine high-precision electronic actuator of this utility model;

[0025] Figure 3 for Figure 2 A schematic diagram of the AA cross-sectional structure;

[0026] Figure 4 This is a schematic diagram of the control panel of this utility model;

[0027] Figure 5 This is a schematic diagram showing the installation position of the light guide rod of this utility model;

[0028] Figure 6 This is a third-view structural schematic diagram of the high-precision electronic actuator for marine applications according to this utility model.

[0029] Among them, 100-housing, 1-motor assembly, 2-first output shaft, 3-stuffing gland, 4-pointer, 5-dial, 6-second output shaft, 7-control panel, 8-light guide rod, 9-photoelectric sensor. Detailed Implementation

[0030] 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.

[0031] This application provides a marine high-precision electronic actuator; please refer to [link / reference]. Figure 1 , Figure 2 and Figure 6 The system includes a housing 100, inside which is installed an integrated electromechanical drive module. This module is connected to a pointer 4 located on the outside of the housing 100, controlling the swing amplitude of the pointer 4. A scale 5 is also provided on the outer periphery of the housing 100, allowing for a direct visual observation of the changes in the pointer 4's scale, thus indicating the ship's position deviation. Compared to existing technologies, this system eliminates the traditional gearbox connection structure between the hydraulic or pneumatic device and the pointer 4, eliminating backlash error, reducing deviations caused during motion transmission, improving transmission accuracy, and making position control more precise, thereby enhancing control precision.

[0032] The periphery of the housing 100 is provided with multiple stuffing boxes 3 to achieve flexible packing compression and sealing of the gland of the housing 100, thus ensuring the sealing performance of the gland.

[0033] Specifically, please refer to Figure 3The integrated electromechanical drive module includes an integrated joint module. The output end of the integrated joint module is connected to a second output shaft 6. The second output shaft 6 passes through the outer peripheral wall of the housing 100 on the corresponding side and connects to the pointer 4 to achieve direct motion transmission. The integrated joint module can be equipped with a planetary gear reducer or a magneto-electric encoder for position positioning. The optimal choice is a motor assembly 1. The first output shaft 2 of the motor assembly 1 is connected to the second output shaft 6, transmitting power from the first output shaft 2 to the second output shaft 6, and then to the pointer 4. The motor drive circuit uses a SiC MOSFET module, increasing the switching frequency to 100kHz and shortening the current response time. Compared to a gearbox, the output shaft, as a rigid mechanical component, has high transmission efficiency, low friction loss, and a simple structure, facilitating subsequent maintenance. A gearbox, containing gear sets, suffers from high gear meshing friction loss, low transmission efficiency, and a complex structure, making it difficult to maintain and repair.

[0034] Please see Figure 3 , Figure 4 and Figure 5 Inside the housing 100, there is also a control panel 7 electrically connected to the integrated joint module. Correspondingly, inside the housing 100, there is a photoelectric sensor 9 electrically connected to the control panel 7. On the outside of the housing 100, there is a light guide rod 8 that transmits light signals to the photoelectric sensor 9. The light guide rod 8 emits light signals to the photoelectric sensor 9, and the photoelectric sensor 9 converts the received light signals into electrical signals and transmits them to the control panel 7. The control panel 7 controls and adjusts the initial driving force of the integrated joint module according to the received electrical signals to quickly change and correct the position deviation.

[0035] Furthermore, control panel 7 has a closed-loop control unit, integrating a high-resolution encoder with a resolution ≤0.001°. This high-resolution encoder is a commercially available electronic component and will not be described in detail here. Control panel 7 employs a temperature compensation algorithm combined with the high-resolution encoder to correct position deviations in real time, ensuring control accuracy is within the range of ≤±0.3%. The temperature compensation algorithm is as follows:

[0036] V_comp=V_raw+k*(Pos-Pos_ref)

[0037] Where V_raw: raw sensor output; Pos: current position; Pos_ref: reference position; K: sensitivity coefficient; V_comp: compensated output. The control algorithm incorporates adaptive PID control with feedforward compensation, achieving a dynamic response time ≤200ms.

[0038] The above are preferred embodiments of the present utility model. Those skilled in the art can make various changes or improvements based on this. Without departing from the overall concept of the present utility model, these changes or improvements should all fall within the scope of protection claimed by the present utility model.

Claims

1. A marine high-precision electronic actuator, characterized in that, include, The housing; pointers are provided on the peripheral walls of the housing; An integrated joint module, installed inside the housing, has a first output shaft; A second drive shaft is connected between the first output shaft and the pointer; The control unit is electrically connected to the integrated joint module to control and adjust the movement of the integrated joint module; The photoelectric sensor is electrically connected to the control unit, converting the received light signal into an electrical signal and transmitting it to the control unit.

2. A high precision electronic actuator for marine use as claimed in claim 1, characterized in that, The control panel has a closed-loop control unit and integrates a high-resolution encoder.

3. A marine high precision electronic actuator as claimed in claim 1, characterized in that, The second output shaft passes through the outer peripheral wall of the housing on the corresponding side and is connected to the pointer to realize the direct transmission of motion.

4. A marine high-precision electronic actuator as described in claim 3, characterized in that, The integrated joint module is a motor assembly. The first output shaft of the motor assembly is connected to the second output shaft. Power is transmitted to the second output shaft through the first output shaft, and then to the pointer.

5. A marine high-precision electronic actuator as described in claim 1, characterized in that, The outer peripheral wall of the housing is also provided with a scale, which makes it easy to see the changes in the pointer scale.

6. A marine high precision electronic actuator as claimed in claim 4, characterized in that, The motor drive circuit uses a SiC MOSFET module.

7. A marine high-precision electronic actuator as described in claim 1, characterized in that, The periphery of the shell is provided with multiple stuffing glands.

8. A marine high precision electronic actuator as claimed in claim 1, characterized in that, A light guide rod is provided on the outside of the housing to transmit light signals to the photoelectric sensor, and the light guide rod emits light signals to the photoelectric sensor.

9. A marine high precision electronic actuator as claimed in claim 1, characterized in that, The integrated joint module is a planetary gear reducer used for position positioning.

10. A marine high precision electronic actuator as claimed in claim 1, characterized in that, The integrated joint module is a magneto-electric encoder used for position positioning.

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