Underwater propeller with rotating structure

Abstract

The utility model discloses an underwater propeller with a rotating structure. The underwater propeller comprises a propeller body, a rotating unit and a motor unit. The two ends of the rotating unit are connected with a shell of the propeller and the output end of the motor unit respectively. The rotating unit comprises a rotating shaft shell with a shaft hole, a rotating shaft installed in the shaft hole and a limiting structure arranged around the top of the rotating shaft. The limiting structure comprises a mechanical limiting ring with a limiting position and a flat key matched with the limiting position. According to the underwater propeller with the rotating structure, due to the design of the rotating unit, the propeller can adapt to different environments, and a flexible propelling solution is provided; a mechanical limiting ring and a matched flat key are arranged, so that the movement of the rotating shaft can be effectively controlled; meanwhile, a plurality of sealing rings and oil seals are adopted, so that water and impurities are effectively prevented from entering the propeller. In addition, a friction ring and various bearings are further arranged, so that friction can be reduced, and the rotating efficiency is improved.

Description

Technical Field

[0001] The utility model relates to an underwater propeller with a rotating structure, belonging to the technical field of fluid dynamics. Background Art

[0002] With the continuous deepening of ocean exploration and the growing demand for underwater operations, underwater thrusters, as key equipment for achieving precise control and efficient power transmission, provide necessary power support and control capabilities in complex and changeable underwater environments. Their performance optimization and operational flexibility are particularly important.

[0003] Conventional underwater propulsion systems typically utilize fixed propellers or nozzles. While this design is relatively simple to operate, it presents significant limitations in complex underwater environments. Furthermore, due to the lack of effective rotational positioning mechanisms within the devices, conventional underwater propulsion systems exhibit limited angular control. In the event of a device malfunction or misoperation, the propulsion system is unable to adjust its steering angle in a timely manner, resulting in excessive steering angles that compromise overall navigation stability and directional control.

[0004] Therefore, it is necessary to design a new type of underwater thruster with a rotating structure. When facing complex underwater environments, it has an effective mechanical rotation positioning structure and can adjust the angle. It also has good waterproof measures to adapt to the underwater operation environment, so as to meet the needs of flexibility and safety during ocean exploration. Utility Model Content

[0005] Therefore, the purpose of the present invention is to provide an underwater propeller with a rotating structure that can be rotated to adjust the angle and is flexible to operate.

[0006] In order to achieve the above-mentioned purpose, the utility model provides an underwater propeller with a rotating structure, including a propeller, a rotating unit and a motor unit; the two ends of the rotating unit are respectively connected to the housing of the propeller and the output end of the motor unit; the rotating unit includes a rotating shaft housing with an axial hole, a rotating shaft installed in the axial hole and a limiting structure arranged around the top of the rotating shaft, and the limiting structure includes a mechanical limiting ring with a limiting position and a flat key matching the limiting position.

[0007] The flat key is installed near the top of the rotating shaft, and the mechanical limiting ring matched with the flat key is installed on the inner wall of the rotating shaft shell corresponding to the position of the flat key, and the rotating shaft passes through the mechanical limiting ring.

[0008] A friction ring is provided at the bottom end of the inner wall of the rotating shaft shell.

[0009] A sealing ring is arranged near the friction ring, and there are multiple sealing rings.

[0010] A deep groove ball bearing is arranged near the sealing ring.

[0011] A needle bearing is also provided on one side of the inner wall of the rotating shaft housing close to the mechanical limiting ring.

[0012] An oil seal is also provided inside the rotating shaft housing.

[0013] An O-type sealing ring is provided on the outer wall near the top end of the rotating shaft housing.

[0014] The motor unit is provided with a connecting shell connected to the rotating shaft shell, and the connecting shell connects the rotating shaft shell and the motor of the motor unit.

[0015] A thrust bearing is also provided inside the connecting shell.

[0016] By adopting the above-mentioned technical solution, the underwater propeller with a rotating structure of the present invention is designed with a rotating unit that allows the propeller to adapt to different working conditions and underwater environments, providing a flexible propulsion solution. Furthermore, by providing a mechanical limit ring and a matching flat key, the movement of the rotating shaft can be effectively controlled, thereby improving the stability and durability of the propeller. At the same time, the use of multiple sealing rings and oil seals effectively prevents moisture and impurities from entering the propeller, protecting key components and extending their service life. In addition, friction rings and various bearings are provided to reduce friction, improve rotational efficiency, reduce energy loss, and reduce wear, ensuring smooth operation. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 It is a structural schematic diagram of the rotating unit and the connecting shell of the utility model.

[0019] Figure 3 This is a structural schematic diagram of the utility model from another angle.

[0020] Figure 4 It is a structural schematic diagram of the limiting structure 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 underwater propeller with a rotating structure, including a propeller 1, a rotating unit 2 and a motor unit 3; the two ends of the rotating unit 2 are respectively connected to the housing of the propeller 1 and the output end of the motor unit 3; the rotating unit 2 includes a rotating shaft housing 4 with an axial hole, a rotating shaft 6 installed in the axial hole and a limiting structure arranged around the top of the rotating shaft 6, and the rotating shaft 6 is respectively connected to the propeller 1 and the motor of the motor unit 3; the limiting structure includes a mechanical limiting ring 11 with a limiting position and a flat key 12 that cooperates with the limiting position. The limiting structure of the rotating unit 2 ensures that the movement of the rotating shaft 6 is precisely controlled by the mechanical limiting ring 11 and the cooperating flat key 12, thereby improving the operational stability of the propeller 1.

[0023] The flat key 12 is installed near the top of the rotating shaft 6, and the mechanical limit ring 11 that matches it is installed on the inner wall of the rotating shaft housing 4 corresponding to the position of the flat key 12. The rotating shaft 6 passes through the mechanical limit ring 11. The annular groove 14 in the mechanical limit ring 11 is designed to allow the flat key 12 to rotate on the rotating shaft 6 in a limited manner, thereby achieving a rotation range of 0° to 90°. This design simplifies the mechanical limit process and ensures the accurate positioning of the rotating shaft 6 within a specific angle range.

[0024] A friction ring 21 is provided at the bottom of the inner wall of the shaft housing 4 to reduce friction between the shaft housing 4 and the propeller 1, thereby lowering energy loss and improving the overall efficiency of the system. Furthermore, the friction ring 21 provides additional support, enhancing the stability of the rotating shaft 6 and preventing displacement or vibration during operation, ensuring smooth operation of the equipment.

[0025] A sealing ring 22 is positioned near the friction ring 21. Multiple sealing rings 22 are provided to provide a better seal, effectively preventing moisture and impurities from entering the interior and protecting internal components from contamination. Furthermore, the multiple sealing rings 22 complement each other to a certain extent, reducing the risk of water leakage and ensuring the safety and reliability of the device in underwater environments.

[0026] A deep groove ball bearing 5 is provided near the sealing ring 22 to bear larger radial and axial loads, thereby enhancing the stability and durability of the entire system, reducing friction, and improving rotation efficiency, thereby improving the working performance of the equipment.

[0027] A needle roller bearing 8 is also provided on the inner wall of the shaft housing 4, near the mechanical stop ring 11. The needle roller bearing 8 has a low coefficient of friction, effectively reducing energy loss during rotation and improving rotation efficiency. Furthermore, it provides better support, ensuring the stability of the rotating shaft 6 during operation and reducing vibration and noise.

[0028] An oil seal 7 is also provided inside the shaft housing 4 to seal the gear oil in the motor unit 3 and effectively prevent external pollutants such as dust and moisture from entering the interior, thereby protecting key components and extending the service life of the equipment.

[0029] An O-ring 9 is provided on the outer wall near the top of the shaft housing 4, which is used to provide an excellent sealing effect when the shaft housing 4 is inserted into the connecting housing 10 for fixation, effectively preventing leakage of liquid and gas, keeping the internal environment clean and dry, and being able to adapt to different temperature and pressure changes, ensuring that good sealing performance can be maintained under various working conditions.

[0030] The motor unit 3 is provided with a connecting shell 10 connected to the shaft shell 4. The connecting shell 10 connects the shaft shell 4 and the motor of the motor unit 3. Through a reasonably designed connecting shell 10, space can be effectively saved, the compactness of the equipment can be improved, and it can adapt to different installation environments.

[0031] A thrust bearing 13 is also provided within the connection housing 10 to provide excellent support, helping to reduce vibration and noise during operation and improving the user experience. Furthermore, the thrust bearing 13 is typically designed to be maintenance-free, reducing the frequency and cost of routine maintenance.

[0032] During use, the motor unit 3 is secured to the hull via its connecting housing 10, with the motor of the motor unit 3 located within the hull. The rotating unit 2 and propeller 1 are submerged in the water, and the motor unit 3 controls the rotation of the rotating shaft 6, thereby rotating the propeller 1 and changing the thrust direction of the propeller 1. Furthermore, the mechanical limit ring 11 has two 90° annular grooves 14 formed within its inner bore for the two flat keys 12 on the rotating shaft 6 to rotate about these grooves, thus achieving mechanical rotational limiting of the rotating shaft 6 from 0° to 90°.

[0033] By adopting the above-mentioned technical solution, the underwater propeller 1 with a rotating structure of the present invention and the design of the rotating unit 2 enable the propeller 1 to adapt to different working conditions and underwater environments, providing a flexible propulsion solution. Moreover, by providing a mechanical limit ring 11 and a matching flat key 12, the movement of the rotating shaft 6 can be effectively controlled, thereby improving the stability and durability of the propeller 1. At the same time, the provision of multiple sealing rings 22 and oil seals 7 effectively prevents moisture and impurities from entering the interior of the propeller 1, protecting key components and extending their service life. In addition, a friction ring 21 and various bearings are provided to reduce friction, improve rotation efficiency, reduce energy loss, and reduce wear, thereby ensuring smooth operation.

[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 underwater propeller with a rotating structure, characterized in that: It includes a propeller, a rotating unit and a motor unit; the two ends of the rotating unit are respectively connected to the housing of the propeller and the output end of the motor unit; the rotating unit includes a rotating shaft shell with an axial hole, a rotating shaft installed in the axial hole and a limiting structure arranged around the top of the rotating shaft, and the limiting structure includes a mechanical limiting ring with a limiting position and a flat key that cooperates with the limiting position.

2. The underwater propeller with a rotating structure according to claim 1, characterized in that: The flat key is installed near the top of the rotating shaft, and the mechanical limiting ring matched with the flat key is installed on the inner wall of the rotating shaft shell corresponding to the position of the flat key, and the rotating shaft passes through the mechanical limiting ring.

3. The underwater propeller with a rotating structure according to claim 1, characterized in that: A friction ring is provided at the bottom end of the inner wall of the rotating shaft shell.

4. The underwater propeller with a rotating structure according to claim 3, characterized in that: A sealing ring is arranged near the friction ring, and there are multiple sealing rings.

5. The underwater propulsion device with a rotating structure according to claim 4, characterized in that: A deep groove ball bearing is arranged near the sealing ring.

6. The underwater propeller with a rotating structure according to claim 1, characterized in that: A needle bearing is also provided on one side of the inner wall of the rotating shaft housing close to the mechanical limiting ring.

7. The underwater propulsion device with a rotating structure according to claim 1, characterized in that: An oil seal is also provided inside the rotating shaft housing.

8. The underwater propeller with a rotating structure according to any one of claims 1 to 7, characterized in that: An O-type sealing ring is provided on the outer wall near the top end of the rotating shaft housing.

9. The underwater propeller with a rotating structure according to any one of claims 1 to 7, characterized in that: The motor unit is provided with a connecting shell connected to the rotating shaft shell, and the connecting shell connects the rotating shaft shell and the motor of the motor unit.

10. The underwater propulsion device with a rotating structure according to claim 9, characterized in that: A thrust bearing is also provided inside the connecting shell.

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