Electric ship paddle locking device

Abstract

The utility model discloses an electric ship propeller locking device which comprises a propeller locking device body and a driving motor. The paddle locking device is mounted on the driving motor; the propeller locking device comprises a propeller locking stator and a propeller locking rotor parallel to the propeller locking stator; a magnetic structure is arranged on the upper surface of the propeller locking rotor, and a magnetic exchange coil is arranged on the lower surface of the propeller locking stator matched with the magnetic structure; and a magnetic core is arranged in a coil channel of the magnetic exchange coil. According to the electric ship propeller locking device, efficient and rapid locking and unlocking operation can be achieved through matching of the magnetic structures of the propeller locking stator and the propeller locking rotor and the magnetic exchange coil, heating and energy consumption caused by continuous electrification of the motor during traditional locking operation are avoided, and controllability of a ship is improved. And the number of the magnetic exchange coils on the paddle locking stator can be adjusted according to specific requirements, so that the flexibility of the system is enhanced. In addition, the paddle locking device is simple in structure, convenient to maintain and light in overall weight, and meets the lightweight standard.

Description

Technical Field

[0001] The utility model relates to an electric ship propeller locking device, belonging to the technical field of ship engineering. Background Art

[0002] With the development of the new energy industry, electric ships have gradually become the main force of modern ships. Among them, the ship propeller locking device is an important part of the development of modern ship technology, aiming to improve the ship's maneuverability and safety in complex waters.

[0003] Although traditional mechanical propeller locks are widely used, their design usually requires the use of multiple mechanical components, which not only increases the overall weight but also poses a challenge to the lightweight design of the ship. In addition, the response speed of traditional propeller locks is relatively slow. The weight of a ship directly affects the cruising range and overall efficiency. Especially in the application of electric ships, lightweight design is crucial to improving energy efficiency and extending cruising range. However, the current mainstream method of lightweight electric ship propeller lock function is to add a propeller lock program to the software, energizing at least two phases of the three-phase permanent magnet synchronous motor so that it attracts the north pole magnet of the motor rotor to ensure that the rotor is locked and motionless. However, this method will cause the motor to be continuously energized. On the one hand, it will affect the heating of the motor, affecting its performance and life; on the other hand, the continuous operation of the motor will consume battery power, directly affecting the cruising ability of the ship.

[0004] Therefore, it is necessary to design a new type of electric ship propeller locking device that can avoid continuous power supply to the motor during the propeller locking operation, and respond to the propeller locking operation accurately and quickly. In addition, the overall structure is simple and light in weight to meet the needs of modern ship technology for lightweight, energy saving and safety. Utility Model Content

[0005] Therefore, the purpose of the present invention is to provide an electric ship propeller locking device with a simple structure and timely locking feedback.

[0006] In order to achieve the above-mentioned purpose, the utility model provides an electric ship propeller locking device, including a propeller locking device and a drive motor; the propeller locking device is installed on the drive motor; the propeller locking device includes a propeller locking stator and a propeller locking rotor parallel to the propeller locking stator; the upper surface of the propeller locking rotor is provided with a magnetic structure, and the lower surface of the propeller locking stator matched therewith is provided with a magnetic exchange coil; a magnetic core is provided inside the coil channel of the magnetic exchange coil.

[0007] The locking rotor has multiple magnetic structures.

[0008] The number of the magnetic exchange coils of the locking propeller stator is n times (n is a positive integer) of the magnetic structure.

[0009] The material of the magnetic core is a material that is easily magnetized and easily demagnetized, such as neodymium iron boron and aluminum nickel cobalt.

[0010] The propeller locking stator and the propeller locking rotor are both annular structures.

[0011] The material of the magnetic coil has a resistivity of no more than 2.82×10 -8 conductor.

[0012] The drive motor is an outer rotor motor, which is provided with a stator bracket with a central axis installed in the center of the drive motor and a rotor support rotating around the central axis; the rotor support includes a rotor upper support and a rotor lower support matched with the rotor upper support.

[0013] The rotor upper support is an annular structure, and the propeller-locking rotor is installed on the rotor upper support.

[0014] The propeller-locking stator is installed on the central axis of the stator bracket.

[0015] The locking blade stator and the central axis of the stator bracket are fixed by interference fit.

[0016] By adopting the above-mentioned technical solution, the electric ship propeller locking device of the utility model can realize efficient and rapid locking and unlocking operations through the cooperation of the magnetic structure of the propeller locking stator and the propeller locking rotor with the magnetic exchange coil, avoiding the heat and energy consumption caused by the continuous power supply to the motor during the traditional locking operation, thereby improving the maneuverability of the ship. Moreover, the number of magnetic exchange coils on the propeller locking stator can be adjusted according to specific needs to adapt to the power and control requirements of different ships, thereby enhancing the flexibility of the system. Secondly, the annular design of the propeller locking stator and the propeller locking rotor helps to evenly distribute the magnetic field, improve the stability of the propeller locking, reduce uneven force, and improve the structural strength. In addition, the propeller locking device has a simple structure, is easy to maintain, and has a light overall weight, which meets the lightweight standard. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structural decomposition of the present utility model.

[0018] Figure 2 This is a structural schematic diagram of the propeller locking device of the present utility model.

[0019] Figure 3 This is a schematic diagram of the drive motor structure of the present utility model.

[0020] Figure 4 This is a schematic diagram of the assembly state of the utility model. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below through the accompanying drawings and specific implementation methods.

[0022] like Figure 1-4As shown, the utility model is an electric ship propeller locking device, comprising a propeller locking device 1 and a drive motor 2; the propeller locking device 1 is mounted on the drive motor 2; the propeller locking device 1 comprises a propeller locking stator 11 and a propeller locking rotor 12 parallel to the propeller locking stator 11; the upper surface of the propeller locking rotor 12 is provided with a magnetic structure 3, and the lower surface of the propeller locking stator 11 is provided with a magnetic exchange coil 4; the coil channel of the magnetic exchange coil 4 is provided with a magnetic core 5. By combining the magnetic structure 3 and the magnetic exchange coil 4, the propeller blades can be locked and unlocked quickly and effectively, thereby improving the maneuverability of the ship. Moreover, by providing the magnetic structure 3 on the propeller locking rotor 12 and configuring the magnetic exchange coil 4 on the propeller locking stator 11, the strength and direction of the magnetic field can be precisely controlled, thereby optimizing the propeller locking performance and enhancing stability. The magnetic core 5 provided inside the magnetic exchange coil 4 can improve the electromagnetic conversion efficiency, reduce the response delay, and enable the propeller locking device 1 to respond to the control signal more quickly.

[0023] The propeller lock rotor 12 has multiple magnetic structures 3, which are used to effectively enhance the overall magnetic field strength of the propeller lock device 1, improve the efficiency of locking and unlocking, and ensure stable operation under various working conditions.

[0024] The number of the magnetic exchange coils 4 of the propeller locking stator 11 is n times (n is a positive integer) the number of the magnetic structure 3, which is used to achieve more precise magnetic field control, improve the accuracy and sensitivity of the propeller locking device 1 to ship control, and enhance the response speed.

[0025] The material of the magnetic core 5 is a material that is easily magnetized and easily demagnetized, such as neodymium iron boron and aluminum nickel cobalt; the easily magnetized material can quickly reach a saturation state, and combined with the easy demagnetization characteristics, it can achieve rapid changes in the magnetic field in a short time, thereby improving the response speed and control flexibility of the propeller locking device 1.

[0026] The propeller locking stator 11 and the propeller locking rotor 12 are both annular structures, which are used to evenly distribute the magnetic field, improve the stability of the propeller locking, reduce uneven force, and improve structural strength.

[0027] The material of the magnetic coil 4 has a resistivity of no more than 2.82×10 -8 The conductor used for effective current transmission can improve the working efficiency of the magnetic exchange coil 4, make the propeller locking device 1 respond more quickly when switching the magnetic field, and optimize the control performance of the system.

[0028] The drive motor 2 is an external rotor motor. It features a stator bracket with a central axis mounted at the center of the motor 2, and a rotor support 6 that rotates around the central axis. The rotor support 6 includes an upper rotor support 61 and a lower rotor support 62 that cooperates with the upper rotor support 61. Bearings 8 are positioned around the central axis. The external rotor design enables greater torque output, making it suitable for efficient ship driving under acceleration and heavy loads, improving overall power performance. Furthermore, the design of the bearings 8 helps reduce friction between the rotor and stator, extending the motor's service life, reducing maintenance requirements, and simplifying the process.

[0029] The rotor upper support 61 is an annular structure, and the locked propeller rotor 12 is mounted on the rotor upper support 61 to withstand larger radial and axial forces, thereby improving the load-bearing capacity of the locked propeller rotor 12 and being suitable for high-load working environments.

[0030] The propeller locking stator 11 is installed on the central axis of the stator bracket to ensure that the propeller locking stator 11 and the propeller locking rotor 12 are respectively installed at the corresponding positions of the static stator and the dynamic rotor of the drive motor 2.

[0031] The locking stator 11 is fixed to the central axis of the stator bracket by interference fit. The interference fit provides a strong mechanical connection, ensuring that the locking stator 11 will not loosen during operation, thereby improving the overall stability and reliability of the system.

[0032] During use, when the ship starts, that is, when the drive motor 2 is working, the magnetic exchange coil 4 is energized so that the magnetic field formed by it is opposite to the original magnetic field of the magnetic core 5, so that the magnetic core 5 structure is non-magnetic, and the drive motor 2 has no other resistance and rotates normally. When the ship is moored or needs to lock the propeller, the magnetic exchange coil 4 is energized so that the magnetic field formed by it is the same as the original magnetic field of the magnetic core 5, and the magnetic core 5 structure restores its magnetism and attracts the magnetic structure 3 on the propeller lock rotor 12. The drive motor 2 cannot rotate, and the purpose of locking the propeller is achieved. Generally speaking, each time the drive motor 2 needs to rotate or be fixed, the magnetic exchange coil 4 is instantaneously energized once to demagnetize or magnetize the middle magnetic core 5 structure to match the magnetic structure 3 components of the propeller lock rotor 12.

[0033] By adopting the above-mentioned technical solution, the electric ship propeller locking device 1 of the utility model can realize efficient and fast locking and unlocking operations through the cooperation of the magnetic structure 3 and the magnetic exchange coil 4 of the propeller locking stator 11 and the propeller locking rotor 12, thereby avoiding the heat and energy consumption caused by the continuous power supply to the motor during the traditional locking operation, and improving the maneuverability of the ship. Moreover, the number of magnetic exchange coils 4 on the propeller locking stator 11 can be adjusted according to specific needs to adapt to the power and control requirements of different ships, thereby enhancing the flexibility of the system. Secondly, the annular design of the propeller locking stator 11 and the propeller locking rotor 12 helps to evenly distribute the magnetic field, improve the stability of the propeller locking, reduce uneven force, and improve the structural strength. In addition, the propeller locking device 1 has a simple structure, is easy to maintain, and has a light overall weight, which meets the lightweight standard.

[0034] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. An electric boat propeller locking device, characterized by: It includes a propeller locking device and a drive motor; the propeller locking device is installed on the drive motor; the propeller locking device includes a propeller locking stator and a propeller locking rotor parallel to the propeller locking stator; the upper surface of the propeller locking rotor is provided with a magnetic structure, and the lower surface of the propeller locking stator matched therewith is provided with a magnetic exchange coil; a magnetic core is provided inside the coil channel of the magnetic exchange coil.

2. The electric boat propeller locking device according to claim 1, characterized in that: The locking rotor has multiple magnetic structures.

3. The electric boat propeller locking device according to claim 2, characterized in that: The number of the magnetic exchange coils of the locking propeller stator is n times (n is a positive integer) of the magnetic structure.

4. The electric boat propeller locking device according to claim 1, characterized in that: The material of the magnetic core is a material that is easily magnetized and easily demagnetized, such as neodymium iron boron and aluminum nickel cobalt.

5. The electric boat propeller locking device according to claim 1, characterized in that: The propeller locking stator and the propeller locking rotor are both annular structures.

6. The electric boat propeller locking device according to claim 1, characterized in that: The material of the magnetic coil has a resistivity of no more than 2.82×10 -8 conductor.

7. The electric boat propeller locking device according to any one of claims 1 to 6, characterized in that: The drive motor is an outer rotor motor, which is provided with a stator bracket with a central axis installed in the center of the drive motor and a rotor support rotating around the central axis; the rotor support includes a rotor upper support and a rotor lower support matched with the rotor upper support.

8. The electric boat propeller locking device according to claim 7, characterized in that: The rotor upper support is an annular structure, and the propeller-locking rotor is installed on the rotor upper support.

9. The electric boat propeller locking device according to claim 7, characterized in that: The propeller-locking stator is installed on the central axis of the stator bracket.

10. The electric boat propeller locking device according to claim 9, characterized in that: The locking blade stator and the central axis of the stator bracket are fixed by interference fit.

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