Auxiliary propelling device of underwater vehicle and underwater vehicle

Abstract

The invention discloses an auxiliary propelling device of an underwater vehicle. The auxiliary propelling device comprises a rim propelling system, a deflection unit, a flow guide unit, a folding and unfolding unit and a vehicle shell. An underwater vehicle employing one or more auxiliary propulsion devices is also disclosed. According to the invention, the thrust direction can be changed by changing the rotation direction of the symmetrical blades of the rim propulsion system, the angle of the thrust axis can be changed through the deflection unit, and the multi-direction and multi-attitude movement of the underwater vehicle can be realized by cooperatively controlling the directions and the angles, so that the underwater maneuverability of the underwater vehicle is improved.

Description

Technical Field

[0001] The present invention belongs to the field of electric propulsion technology of ship and ocean engineering technology, and in particular relates to an auxiliary propulsion device for an underwater vehicle, and the underwater vehicle. Background Art

[0002] As an important equipment for human ocean exploration and maritime defense activities, underwater vehicles are widely used in various fields. With the development of equipment application, underwater vehicles have gradually evolved from the previous single-task operation mode to a clustered, unmanned, and automated operation mode. When operating in a cluster, there are a large number of movements such as approaching and berthing, which puts forward higher maneuverability requirements for underwater vehicles.

[0003] At present, underwater vehicles usually improve the maneuverability of the propeller by adding ducted lateral thrust and vertical thrust. Usually, it is necessary to open a duct structure that runs through the bow and stern of the vehicle and install a propulsion device inside, but this propulsion form has the following shortcomings.

[0004] The through holes opened in the duct will increase the navigation resistance of the aircraft, affect the flow field state around the aircraft, and increase water noise.

[0005] The propulsion power is limited by the duct size, and the thrust generated is limited. In addition, when the aircraft is in navigation, the side thrust work is affected by the Coanda Effect, and the thrust loss is obvious.

[0006] The through-type duct structure will increase the difficulty of sealing the aircraft and occupy the space required for the cabin layout. The friction avoidance of the duct body will also lead to the efficiency loss of the propeller.

[0007] The built-in propulsion device has poor maintainability, is highly coupled to the spacecraft, and cannot be quickly disassembled and replaced. Summary of the invention

[0008] In order to solve the above problems in the prior art, one of the objectives of the present invention is to provide an auxiliary propulsion device for an underwater vehicle.

[0009] The technical solution adopted by the present invention to solve its technical problems is: an auxiliary propulsion device for an underwater vehicle, comprising a guide unit movably connected to the vehicle shell through a retracting unit and a rim propulsion system connected to the guide unit through a deflection unit; the rim propulsion system comprises a rim propulsion motor, a thruster duct installed on both sides of the inlet and outlet flow directions of the rim propulsion motor, and symmetrical blades installed inside the rim propulsion motor and capable of generating equal thrusts in forward and reverse directions, and a propulsion system-guide plate connection structure and a deflection connection structure are respectively arranged on the upper and lower sides of the rim propulsion motor; the deflection unit comprises a deflection cylinder connected to the deflection connection structure at the top and a cylinder-guide plate connection structure led out from both sides of the deflection cylinder; the guide unit comprises an outer guide plate connected to the propulsion system-guide plate connection structure and an inner guide plate connected to the cylinder-guide plate connection structure, and the outer guide plate and the inner guide plate have a smooth outer surface with the same curvature as the vehicle shell.

[0010] The auxiliary propulsion device of the underwater vehicle has a retractable unit comprising a telescopic cylinder connected to the inner guide plate at the top.

[0011] Furthermore, the retractable unit also includes a guide rod installed perpendicularly to the internal axis of the aircraft and a guide slider passing through the guide rod, the guide slider can move along the direction of the guide rod, and the guide slider is connected to the bottom of the inner guide plate.

[0012] The auxiliary propulsion device of the underwater vehicle has a retracting and extending unit composed of a slide rail and a linear motor.

[0013] The auxiliary propulsion device of the underwater vehicle has a propulsion system-guide plate connection structure and a deflection connection structure symmetrically connected above and below the outer side of the rim propulsion motor.

[0014] The second object of the present invention is to propose an underwater vehicle, comprising a vehicle shell and a vehicle component arranged in the vehicle shell, and also comprising one or more auxiliary propulsion devices, wherein the retractable unit is arranged on the inner side of the vehicle shell, and the vehicle shell has an opening adapted to the outer guide plate and the inner guide plate.

[0015] The beneficial effects of the present invention are: The external auxiliary propulsion device can reduce the size constraints of the internal propeller on the duct, thereby maximizing the propeller performance and eliminating the influence of the Coanda effect. At the same time, the setting of the guide plate eliminates the influence of the opening of the aircraft shell on the navigation resistance. The external auxiliary propulsion device can be repaired and replaced more quickly.

[0016] By setting up the deflection mechanism, the direction of the propulsion axis of the thruster can be simply changed, so that the thruster can achieve multi-directional and multi-angle thrust output, further improving the maneuverability of the spacecraft.

[0017] The rim propulsion system can be stored on the aircraft hull through the retracting unit, and in the fully extended and fully recovered states, the outer guide plate and the inner guide plate can be smooth with the shape of the aircraft hull, reducing the impact on the external flow field of the aircraft.

[0018] The rim propulsion system can change the angle of the thrust axis through the deflection unit, allowing the aircraft to move in multiple directions. The thrust direction can be changed by changing the rotation direction of the symmetrical blades of the rim propulsion system, and the angle of the thrust axis can be changed through the deflection unit. By coordinating the control of the above directions and angles, the aircraft can move in multiple directions and postures. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a general schematic diagram of the present invention; Figure 2 is a schematic diagram of a rim propulsion system of the present invention; Figure 3 is a schematic diagram of a deflection unit of the present invention; Figure 4 is a schematic diagram of a flow guide unit of the present invention; Figure 5 A schematic diagram of the aircraft shell of the present invention in an extended state; Figure 6 is a schematic diagram of a retractable unit of the present invention; Figure 7 A schematic diagram of the folding and releasing of the auxiliary propulsion device of the underwater vehicle of the present invention;

[0020] Figure 8 It is a schematic diagram of the auxiliary propulsion device of the underwater vehicle of the present invention in the released state;

[0021] Fig. 9 It is a schematic diagram of the lateral thrust state of the auxiliary propulsion device of the underwater vehicle of the present invention;

[0022] Fig.10 It is a schematic diagram of the vertical thrust state of the auxiliary propulsion device of the underwater vehicle of the present invention.

[0023] The figures are marked as follows: 100—auxiliary propulsion device of underwater vehicle, 1—rim propulsion system, 11—rim propulsion motor, 12—symmetrical blades, 13—thruster duct, 14—propulsion system-guide plate connection structure, 15—deflection connection structure, 2—deflection unit, 21—deflection cylinder, 22—cylinder-guide plate connection structure, 3—guide unit, 31—outer guide plate, 32—inner guide plate, 4—retraction unit, 41—telescopic cylinder, 42—guide rod, 43—guide slider, 5—vehicle shell. DETAILED DESCRIPTION

[0024] The embodiments of the present invention are described in detail below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. For example, although the various components in the accompanying drawings are drawn in specific proportions, these proportional relationships are only exemplary, and those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0025] It should be noted that, in the description of the present invention, terms such as "center", "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed or operate in a specific orientation, and therefore cannot be understood as a limitation on the invention.

[0026] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a connection between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example 1

[0027] According to an example of the present invention, Figures 1 to 6 The present invention discloses an auxiliary propulsion device 100 for an underwater vehicle, comprising a rim propulsion system 1, a deflection unit 2, a guide unit 3 and a retracting unit 4; the lower part of the rim propulsion system 1 is connected to the upper part of the deflection unit 2, the upper part of the rim propulsion system 1 and the lower part of the deflection unit 2 are respectively connected to the guide unit 3, and the lower part of the guide unit 3 is connected to the retracting unit 4.

[0028] Reference Figure 2As shown, the rim propulsion system 1 includes a rim propulsion motor 11, symmetrical blades 12, a propeller duct 13, a propulsion system-guide plate connection structure 14 and a deflection connection structure 15. The symmetrical blades 12 are installed inside the rim propulsion motor 11 to generate equal thrust in the forward and reverse directions. The propeller duct 13 is installed on both sides of the inlet and outlet flow directions of the rim propulsion motor 11. The propulsion system-guide plate connection structure 14 is connected to the upper outer side of the rim propulsion motor 11, and the deflection connection structure 15 is connected to the lower outer side of the rim propulsion motor 11. The propulsion system-guide plate connection structure 14 is a connection structure between the rim propulsion system 1 and the guide unit 3, and the deflection connection structure 15 is a connection structure between the rim propulsion system 1 and the deflection unit 2. The propulsion system-guide plate connection structure 14 is a connection structure between the rim propulsion system 1 and the guide unit 3, and the deflection connection structure 15 is a connection structure between the rim propulsion system 1 and the deflection unit 2.

[0029] Reference Figure 3 As shown, the deflection unit 2 includes a deflection cylinder 21 and a cylinder-guide plate connection structure 22. The top of the deflection cylinder 21 is connected to the deflection connection structure 15 of the rim propulsion system 1, and the cylinder-guide plate connection structure 22 is connected to both sides of the deflection cylinder 21 at the top and to the inner guide plate 32 of the guide unit 3 at the bottom.

[0030] Reference Figure 4 As shown, the guide unit 3 includes an outer guide plate 31 and an inner guide plate 32. The outer guide plate 31 is connected to the propulsion system-guide plate connection structure 14 of the rim propulsion system 1, and the inner guide plate 32 is connected to the cylinder-guide plate connection structure 22 of the deflection unit 2.

[0031] Reference Figure 5 As shown, the outer guide plate 31 and the inner guide plate 32 of the aircraft shell 5 and the guide unit 3 are smooth in appearance, that is, the outer guide plate 31 and the inner guide plate 32 have smooth outer surfaces with the same curvature as the aircraft shell 5. The guide unit 3 of the present invention is movably connected to the aircraft shell 5 through the retractable unit 4.

[0032] According to Figure 6 As shown, the retractable unit 4 of this embodiment includes a telescopic cylinder 41, a guide rod 42 and a guide slider 43. The top of the telescopic cylinder 41 is connected to the inner guide plate 32 of the guide unit 3, and the guide rod 42 is perpendicular to the axis of the aircraft and installed inside the aircraft; the guide slider 43 passes through the guide rod 42 and can move along the direction of the guide rod, and the guide slider 43 is connected to the bottom of the inner guide plate 32.

[0033] The working principle of the present invention is as follows.

[0034] When the aircraft is sailing normally, the telescopic cylinder 41 of the retracting unit 4 is in a retracted state, at which time the rim propulsion system 1 is retracted to the inside of the aircraft, and the outer guide plate 31 is aligned with the aircraft shell 5. At this time, the angle of the deflection cylinder 21 is consistent with the angle of the guide rod 42, and the rim propulsion motor 11 is not powered on.

[0035] When the aircraft needs to maneuver or position, the telescopic cylinder 41 of the retractable unit 4 is extended by controlling the external hydraulic system (not shown), at which time the inner guide plate 32 and the aircraft shell 5 are aligned.

[0036] Extended initial state, reference Figure 8 As shown, the angle of the deflection cylinder 21 is consistent with the angle of the guide rod 42, and the rim propulsion motor 11 is not powered on and works.

[0037] When the vehicle needs to move laterally, refer to Fig. 9 As shown, by rotating the deflection cylinder 21 in the middle direction, the rim propulsion motor 11 is placed in a horizontal state. At this time, the rim propulsion motor 11 is powered on to generate a thrust in the horizontal direction that is adjustable in size to the left and right, so that the aircraft moves laterally.

[0038] When the aircraft needs to move vertically, refer to Fig.10 As shown, by rotating the deflection cylinder 21 in the outer direction, the rim propulsion motor 11 is placed in a vertical state. At this time, the rim propulsion motor 11 is powered on to generate a thrust force that can be adjusted up and down in the vertical direction, so that the aircraft moves vertically. Example 2

[0039] refer to Figure 6 As shown, in another embodiment of the present invention, the retractable unit 4 can be replaced by any other mechanism with guiding and retracting function, including but not limited to a slide rail, a linear motor, etc. Example 3

[0040] The present embodiment discloses an underwater vehicle, including a vehicle shell 5 and a vehicle component arranged in the vehicle shell 5, and also includes one or more auxiliary propulsion devices, the retractable unit 4 is arranged on the inner side of the vehicle shell 5, the vehicle shell 5 has an opening adapted to the outer guide plate 31 and the inner guide plate 3, the outer guide plate 31 and the inner guide plate 32 can both seal the opening, and the retractable unit 4 is connected to the inner guide plate 32; the retractable unit 4 pushes the inner guide plate 32 to the opening in the extended state, and then pushes the deflection unit 2 and the rim propulsion system 1 out of the vehicle shell 5; when the retractable unit 4 is in the folded state, the deflection unit 2 and the rim propulsion system 1 are pulled into the vehicle shell 5 so that the outer guide plate 31 closes the opening.

[0041] The number of auxiliary propulsion devices of the underwater vehicle arranged in the vehicle is not limited to the two shown in this embodiment, and includes but is not limited to two arranged at the front and back, four arranged on a single plane, etc.

[0042] The above embodiments are only illustrative of the principles and effects of the present invention, as well as some embodiments of its application. For those skilled in the art, several modifications and improvements may be made without departing from the creative concept of the present invention, and all of these belong to the protection scope of the present invention.

Claims

1. An auxiliary propulsion device for an underwater vehicle, characterized in that: The invention relates to a rim propulsion system (1) comprising a guide unit (3) movably connected to a vehicle shell (5) via a retractable unit (4) and connected to the guide unit (3) via a deflection unit (2); the rim propulsion system (1) comprises a rim propulsion motor (11), a propeller duct (13) installed in the inlet and outlet directions of the rim propulsion motor (11), and symmetrical blades (12) installed inside the rim propulsion motor (11); the upper and lower sides of the rim propulsion motor (11) are respectively provided with a propulsion system-guide plate connection structure (14) and a deflection connection structure (2). structure (15); the deflection unit (2) comprises a deflection cylinder (21) connected to the deflection connection structure (15) and a cylinder-guide plate connection structure (22) extending from both sides of the deflection cylinder (21); the guide unit (3) comprises an outer guide plate (31) connected to the propulsion system-guide plate connection structure (14) and an inner guide plate (32) connected to the cylinder-guide plate connection structure (22), the outer guide plate (31) and the inner guide plate (32) having a smooth outer surface with the same curvature as the aircraft shell (5).

2. The auxiliary propulsion device for an underwater vehicle according to claim 1, characterized in that: The retractable unit (4) comprises a telescopic oil cylinder (41) connected to the inner guide plate (32).

3. The auxiliary propulsion device for an underwater vehicle according to claim 2, characterized in that: The retractable unit (4) further comprises a guide rod (42) perpendicular to the axis of the aircraft and a guide slider (43) passing through the guide rod (42), wherein the guide slider (43) is connected to the bottom of the inner guide plate (32).

4. The auxiliary propulsion device for an underwater vehicle according to claim 1, characterized in that: The retractable unit (4) is composed of a slide rail and a linear motor.

5. The auxiliary propulsion device for an underwater vehicle according to claim 1, 2, 3 or 4, characterized in that: The propulsion system-guide plate connection structure (14) and the deflection connection structure (15) are symmetrically connected above and below the outer side of the rim propulsion motor (11).

6. An underwater vehicle, characterized in that: The invention comprises an aircraft shell (5) and an aircraft component arranged in the aircraft shell (5), and also comprises one or more auxiliary propulsion devices as claimed in claim 1, wherein the retracting and releasing unit (4) is arranged on the inner side of the aircraft shell (5), and the aircraft shell (5) has an opening adapted to the outer guide plate (31) and the inner guide plate (32).

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