A hybrid propulsion device integrating underwater jet and air thrust

Abstract

This utility model provides a composite propulsion device integrating underwater jetting and aerial thrust, belonging to the technical field of composite propulsion devices. It includes an external duct with a vertically positioned positioning shaft inside. A positioning rod is located on one side of the positioning shaft, and a guide shaft cap is located at the top of the positioning shaft. A ring-shaped shaftless motor is located at the bottom of the positioning shaft, sharing a single ring-shaped shaftless motor for direct drive. This avoids complex gearboxes or long transmission shafts, further simplifying the structure and reducing the risk of failure. Simultaneously driving the top impeller and high-pressure water pump, it also reduces the number of motors and transmission components, achieving maximum lightweighting of the power system. This significantly improves the vehicle's payload, range, and maneuverability. Furthermore, arranging two different types of thrusters on the same axis greatly reduces the radial dimension of the device, maintaining the functionality and efficiency of the water-air composite thrust.

Description

Technical Field

[0001] This utility model relates to the field of composite propulsion device technology, and in particular to a composite propulsion device that integrates underwater jetting and aerial thrust. Background Technology

[0002] According to Chinese Patent No. CN219592203U, a small-sized ducted power system with a novel heat dissipation structure is disclosed. The duct shell has a cylindrical structure, and the duct shell is open at both ends to form a duct air duct. A motor frame is set at the end of the duct air duct, and the drive motor is mounted to the tail end of the duct shell through the motor frame. The output shaft of the drive motor extends through the motor frame into the duct air duct, and the propeller is mounted on the output shaft of the drive motor by mounting screws. The drive motor includes a motor housing and a stator assembly installed in the motor housing. A heat dissipation air duct communicating with the duct air duct is formed on the motor housing. By adding a heat dissipation air duct in the motor, high-velocity air exhausted from the duct air duct is introduced to quickly remove the heat generated by the stator, achieving efficient heat dissipation. This solves the problem that small ducted power systems cannot operate at high power for extended periods due to heat dissipation issues.

[0003] The aforementioned prior art and related documents have the following technical problems: 1. Traditional amphibious or cross-medium propulsion systems typically use two or more independent power sources to drive the air and underwater propulsion systems respectively, resulting in a large number of parts, complex structure, and difficult maintenance. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a composite propulsion device that integrates underwater jetting and aerial thrust.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a composite propulsion device integrating underwater jetting and aerial thrust, comprising an external duct, a positioning shaft vertically disposed inside the external duct, a positioning rod disposed on one side of the positioning shaft, a guide shaft cap disposed at the top of the positioning shaft, and a top impeller disposed on one side of the guide shaft cap.

[0006] Preferably, the bottom of the positioning shaft is provided with a ring-shaped shaftless motor, and the top of the ring-shaped shaftless motor is movably connected to the bottom of the positioning shaft.

[0007] Preferably, the bottom of the annular shaftless motor is provided with a coupling, and the top of the coupling is positioned to connect with the bottom of the annular shaftless motor.

[0008] Preferably, a high-pressure water pump is provided at the bottom of the coupling, and the top of the high-pressure water pump is positioned to be connected to the bottom of the coupling.

[0009] Preferably, the bottom of the high-pressure water pump is provided with a connecting flange, and the top of the connecting flange is threadedly connected to the bottom of the high-pressure water pump.

[0010] Preferably, the bottom of the connecting flange is provided with a water outlet, and the top of the water outlet is connected to the bottom of the connecting flange by a flange.

[0011] Preferably, a vector nozzle is provided on one side of the water outlet, and one side of the vector nozzle is movably connected to one side of the water outlet. Preferably, a water inlet chamber is provided on one side of the high-pressure water pump, and the water inlet chamber is cut.

[0012] Beneficial effects In this invention, a positioning rod is provided on one side of the positioning shaft, and a ring-shaped shaftless motor is provided at the bottom of the positioning shaft. By sharing a single ring-shaped shaftless motor and having it directly drive the vehicle, complex gearboxes or long transmission shafts are avoided, further simplifying the structure and reducing the risk of failure. At the same time, it drives the top impeller and high-pressure water pump, which also reduces the number of motors and transmission components, achieving maximum weight reduction of the power system. This significantly improves the vehicle's payload, range, and maneuverability. Furthermore, by arranging two different types of thrusters on the same axis, the radial dimension of the device is greatly reduced, maintaining the function and efficiency of the water-air combined thrust. Attached Figure Description

[0013] Figure 1 This is an isometric view of the present invention; Figure 2 This is an internal isometric view of the present invention; Figure 3 This is an internal front view of the present invention; Figure 4 This is a bottom-view axonometric drawing of this utility model.

[0014] Legend: 1. External duct; 2. Guide shaft cap; 3. Top impeller; 4. High-pressure water pump; 5. Positioning shaft; 6. Positioning rod; 7. Annular shaftless motor; 8. Coupling; 9. Connecting flange; 10. Water outlet; 11. Vector nozzle; 12. Water inlet chamber. Detailed Implementation

[0015] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.

[0016] The specific embodiments of this utility model are described below with reference to the accompanying drawings. Specific Implementation Example 1: Reference Figure 1-4 A composite propulsion device integrating underwater jetting and aerial thrust includes an outer duct 1. A positioning shaft 5 is vertically mounted inside the outer duct 1. A ring-shaped shaftless motor 7 is mounted at the bottom of the positioning shaft 5, with the top of the ring-shaped shaftless motor 7 connected to the bottom of the positioning shaft 5. A coupling 8 is mounted at the bottom of the ring-shaped shaftless motor 7, with the top of the coupling 8 positioned to the bottom of the ring-shaped shaftless motor 7. A high-pressure water pump 4 is mounted at the bottom of the coupling 8, with the top of the high-pressure water pump 4 positioned to the bottom of the coupling 8. A connecting flange 9 is mounted at the bottom of the high-pressure water pump 4, with the top of the connecting flange 9 connected to the bottom of the high-pressure water pump 4 by a threaded connection. The connection is as follows: the bottom of the connecting flange 9 is provided with a water outlet 10, the top of the water outlet 10 is connected to the bottom of the connecting flange 9 by a flange, a vector nozzle 11 is provided on one side of the water outlet 10, and one side of the vector nozzle 11 is movably connected to one side of the water outlet 10, a positioning rod 6 is provided on one side of the positioning shaft 5, a guide shaft cap 2 is provided on the top of the positioning shaft 5, a top impeller 3 is provided on one side of the guide shaft cap 2, and a water inlet chamber 12 is provided on one side of the high-pressure water pump 4, and the water inlet chamber 12 is cut, and the water inlet chamber 12 is connected to the high-pressure water pump 4. A positioning rod 6 is provided on one side of the positioning shaft 5, and a ring-shaped shaftless motor 7 is provided at the bottom of the positioning shaft 5. This allows for the sharing of a single ring-shaped shaftless motor 7, which directly drives the vehicle, avoiding complex gearboxes or long transmission shafts, further simplifying the structure and reducing the risk of failure. It also drives the top impeller 3 and the high-pressure water pump 4, reducing the number of motors and transmission components, achieving maximum weight reduction of the power system, significantly improving the vehicle's payload, range, and maneuverability. Furthermore, arranging two different types of thrusters on the same axis greatly reduces the radial dimension of the device, maintaining the function and efficiency of the water-air combined thrust. The ring-shaped shaftless motor rotor and the high-pressure water pump impeller use ceramic ball bearings to withstand the lateral force when the impeller rotates at high speed, requiring high precision, high temperature resistance, and wear resistance. Specific Implementation Example 2: Reference Figure 1-4 Based on the basic structure in Specific Embodiment 1, a retractable tail fin is added to one side of the outlet 10. This reduces the efficiency of the vector nozzle 11 at low underwater speeds. The retractable tail fin provides additional hydrodynamic control surfaces, improving control accuracy and stability at low speeds or when hovering.

[0019] In summary: 1. A positioning rod 6 is provided on one side of the positioning shaft 5, and a ring-shaped shaftless motor 7 is provided at the bottom of the positioning shaft 5. This allows the use of a single ring-shaped shaftless motor 7 for direct drive, avoiding complex gearboxes or long transmission shafts, further simplifying the structure and reducing the risk of failure. At the same time, it drives the top impeller 3 and the high-pressure water pump 4, which also reduces the number of motors and transmission components, achieving maximum weight reduction of the power system. This significantly improves the vehicle's payload, range, and maneuverability. Furthermore, by arranging two different types of thrusters on the same axis, the radial dimension of the device is greatly reduced, maintaining the function and efficiency of the water-air combined thrust.

[0020] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0021] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A composite propulsion device integrating underwater jetting and aerial thrust, comprising an external duct (1), characterized in that: The external duct (1) is vertically provided with a positioning shaft (5), a positioning rod (6) is provided on one side of the positioning shaft (5), a guide shaft cap (2) is provided on the top of the positioning shaft (5), and a top impeller (3) is provided on one side of the guide shaft cap (2); a ring-shaped shaftless motor (7) is provided at the bottom of the positioning shaft (5), and the top of the ring-shaped shaftless motor (7) is connected to the bottom of the positioning shaft (5); a coupling (8) is provided at the bottom of the ring-shaped shaftless motor (7), and the top of the coupling (8) is connected to the bottom of the ring-shaped shaftless motor (7) by positioning.

2. The integrated underwater jetting and aerial thrusting composite propulsion device according to claim 1, characterized in that: The bottom of the coupling (8) is provided with a high-pressure water pump (4), and the top of the high-pressure water pump (4) is positioned to connect with the bottom of the coupling (8).

3. The integrated underwater jetting and aerial thrusting composite propulsion device according to claim 2, characterized in that: The bottom of the high-pressure water pump (4) is provided with a connecting flange (9), and the top of the connecting flange (9) is threaded to the bottom of the high-pressure water pump (4).

4. The integrated underwater jetting and aerial thrusting composite propulsion device according to claim 3, characterized in that: The bottom of the connecting flange (9) is provided with a water outlet (10), and the top of the water outlet (10) is connected to the bottom of the connecting flange (9) by a flange.

5. A composite propulsion device integrating underwater jetting and aerial thrust according to claim 4, characterized in that: A vector nozzle (11) is provided on one side of the water outlet (10), and one side of the vector nozzle (11) is movably connected to one side of the water outlet (10).

6. A composite propulsion device integrating underwater jetting and aerial thrust according to claim 2, characterized in that: The high-pressure water pump (4) has an inlet chamber (12) on one side, and the inlet chamber (12) is connected to the high-pressure water pump (4).

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