Marine propulsion and ships

Abstract

This application discloses a marine propulsion system and a vessel. The marine propulsion system comprises a frame; at least two propulsion mechanisms detachably connected to the frame; the propulsion mechanisms comprise a power mechanism and a propeller connected to the power mechanism, the power mechanism providing power to the propeller to rotate. In this manner, this application improves the propulsion efficiency of the marine propulsion system, expands its application range, and reduces costs.

Description

Technical Field

[0001] The present application relates to the field of ship propulsion technology, and in particular to a ship propeller and a ship. Background Art

[0002] A propeller is a propulsion component, which is the most widely used propulsion component in various propulsion devices. It is a device that converts the engine rotational torque into propulsion torque by rotating the blades in water.

[0003] In some thrusters, a single power module, that is, the propulsion mechanism, has a small power coverage range, which makes it difficult to simultaneously meet the propulsion requirements of ships of different sizes. In addition, in order to meet the power coverage range required to propel the ship, a single power module often selects a larger power motor. However, in actual use, the motor is often in a low-speed operation state, most of the energy is wasted, and the energy conversion efficiency is relatively low. Secondly, the propulsion efficiency of a single power module is low. Since a single power module uses a single motor, the motor is often large in size, and the water-facing section has a large obstruction on the propeller, resulting in relatively low propulsion efficiency. Summary of the Invention

[0004] The present application provides a marine propulsion unit and a ship, so as to improve the propulsion efficiency of the marine propulsion unit, expand the application range and save costs.

[0005] The present application proposes a marine propulsion device, which includes: a frame; at least two propulsion mechanisms, which are detachably connected to the frame; wherein the propulsion mechanisms include: a power mechanism and a propeller connected to the power mechanism, and the power mechanism provides power to the propeller to drive the propeller to rotate.

[0006] The present application proposes a ship, which includes: the above-mentioned marine propulsion unit.

[0007] The marine propulsion device of the present application is provided with at least two propulsion mechanisms and a frame for connecting to a ship, the propulsion mechanism is connected to the frame in a detachable manner, wherein the propulsion mechanism includes a power mechanism and a propeller connected to the power mechanism. The marine propulsion device of the present application is provided with at least two propulsion mechanisms, which can achieve coverage of different power segments through the power parallel combination of at least two propulsion mechanisms, so that the overall propulsion power of the marine propulsion device is the superposition of the propulsion power of all propellers, which can significantly improve the propulsion efficiency of the marine propulsion device; and the propulsion mechanism of the present application can be detachable from the frame, so that the marine propulsion device can be adapted to propulsion mechanisms of various power sizes, expand the scope of application, and save costs; further, the present application is provided with at least two propulsion mechanisms, which can avoid the marine propulsion device from losing propulsion force when one or part of the propulsion mechanisms fail, causing problems of life and property safety, therefore, it can increase the redundancy of the marine propulsion device and improve the safety of the marine propulsion device. Furthermore, the present application can share the required propulsion power of the marine propeller through at least two propulsion mechanisms, thereby reducing the volume of the power mechanism in a single propulsion mechanism, such as a motor, and reducing the area of ​​the propeller blocked by the water-facing section of the propulsion mechanism, thereby improving the propulsion efficiency of the propulsion mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive work, among which:

[0009] Figure 1 This is a structural diagram of an embodiment of the marine propulsion system of the present application;

[0010] Figure 2 This is a structural diagram of another embodiment of the marine propulsion system of the present application;

[0011] Figure 3 yes Figure 2 Schematic diagram of the structure in the first direction, axial direction and horizontal plane of the embodiment;

[0012] Figure 4 It is a structural schematic diagram of an embodiment of the ship of the present application. DETAILED DESCRIPTION

[0013] The present application will be further described in detail below in conjunction with the accompanying drawings and examples. It is particularly noted that the following examples are only intended to illustrate the present application and are not intended to limit the scope of the present application. Similarly, the following examples are only some examples of the present application and not all examples. All other examples obtained by those of ordinary skill in the art without creative work are intended to fall within the scope of protection of this application.

[0014] In the description of the embodiments of this application, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of this application based on the specific circumstances.

[0015] In the embodiments of the present application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0016] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0017] In some propulsion systems, a single power module, or propulsion mechanism, has a small power coverage range, making it difficult to simultaneously meet the propulsion requirements of ships of different sizes. Furthermore, to meet the power coverage required to propel ships, a single propulsion mechanism often uses a larger-power motor. However, in actual use, the motor often operates at low speed, wasting most of the energy and resulting in relatively low energy conversion efficiency. Furthermore, the propulsion efficiency of a single propulsion mechanism is low. Because a single propulsion mechanism uses a single motor, the motor is often large, and the water-facing cross-section obstructs the propeller significantly, resulting in relatively low propulsion efficiency. Propellers with a single propulsion mechanism also have poor redundancy. In an emergency, if the propulsion mechanism fails, the propulsion mechanism will not function, and the ship will be unable to move forward.

[0018] In order to solve the above problems, the present application first proposes a propeller, such as Figure 1 As shown, Figure 1 It is a structural schematic diagram of an embodiment of the marine propulsion device of the present application. The marine propulsion device 10 of this embodiment includes: a frame 11 and at least two propulsion mechanisms 12. The frame 11 is used to be connected to the hull of the ship; the propulsion mechanism 12 is detachably connected to the frame 11; wherein the propulsion mechanism 12 includes: a power mechanism 121 and a propeller 122 connected to the power mechanism 121, and the power mechanism 121 provides power to the propeller 122 to drive the propeller 122 to rotate.

[0019] The marine propeller 10 of the present embodiment is provided with at least two propulsion mechanisms 12, which can achieve coverage of different power ranges through the power parallel combination of at least two propulsion mechanisms 12, so that the overall propulsion power of the marine propeller 10 is the superposition of the propulsion power of all propellers 122, which can significantly improve the propulsion efficiency of the marine propeller 10; and the propulsion mechanism 12 of the present embodiment can be detachable from the frame 11, so that the marine propeller 10 can adapt to propulsion mechanisms 12 of various power sizes, expand the scope of application, and save costs; further, the marine propeller 10 of the present embodiment is provided with at least two propulsion mechanisms 12, which can avoid the marine propeller 10 losing propulsion force when one or part of the propulsion mechanism 12 fails, causing problems with the safety of life and property, thereby increasing the redundancy of the marine propeller 10 and improving the safety of the marine propeller 10.

[0020] Furthermore, this embodiment can share the required propulsion power of the marine propeller 10 through at least two propulsion mechanisms 12, thereby reducing the volume of the power mechanism 121 in a single propulsion mechanism 12, such as a motor, and reducing the shielding area of ​​the propeller 122 by the water-facing cross-section of the propulsion mechanism 12, thereby improving the propulsion efficiency of the propulsion mechanism 12.

[0021] Optionally, the marine propulsion unit 10 of this embodiment further includes a chassis 101 , one end of which is connected to an end of the frame 11 away from the propulsion mechanism 12 , and the other end of which is used to be connected to the hull.

[0022] Optionally, the propulsion mechanism 12 of this embodiment includes a housing 123 connected to the frame 11 and provided with an accommodating chamber. The power mechanism 121 is disposed within the accommodating chamber, and the propeller 122 is disposed outside the housing 123. The power mechanism 121 includes an output shaft (not shown) for outputting torque. The output shaft of the power mechanism 121 extends outside the housing and is connected to the propeller 122. The provision of the housing 123 enables connection with the frame 11 and protects the power mechanism 121, preventing direct collision with underwater obstacles, etc., when the power mechanism 121 is operating underwater.

[0023] Optionally, the marine propulsion unit 10 of this embodiment further includes an adapter 13 , one end of the adapter 13 is connected to the frame 11 , and the other end of the adapter 13 is connected to the propulsion mechanism 12 .

[0024] The housing 123 is connected to one end of the adapter 13 to achieve connection with the frame 11 .

[0025] The adapter 13 is detachably connected to the frame 11 and the propulsion mechanism 12 respectively. Specifically, a first connecting portion can be provided at one end of the adapter 13, and a second connecting portion can be provided on the frame 11. The first connecting portion cooperates with the second connecting portion to achieve a detachable connection between one end of the adapter 13 and the frame 11; a third connecting portion can be provided at the other end of the adapter 13, and a fourth connecting portion can be provided on the propulsion mechanism 12. The third connecting portion cooperates with the fourth connecting portion to achieve a detachable connection between the other end of the adapter 13 and the propulsion mechanism 12.

[0026] The connection portion may be a threaded connection portion, a snap connection portion, a hinge connection portion, or the like.

[0027] In this embodiment, the frame 11 and the propulsion mechanism 12 are detachably connected via the adapter 13 .

[0028] Among them, this embodiment divides the marine propeller 10 into upper and lower parts, namely the frame 11 and the propulsion mechanism 12, through the adapter 13. Different adapters 13 can be selected for the marine propeller 10 to connect different propulsion mechanisms 12 or different numbers of propulsion mechanisms 12 through different adapters 13 to realize marine propellers 10 with different structures or different functions.

[0029] The propulsion mechanisms 12 of different structures or functions may have different propulsion powers, propulsion speeds, and immersion depths. Alternatively, the adapter 13 may be provided with different depths or modified in shape to achieve different immersion depths of the marine propeller 10.

[0030] By the above method, a marine propeller 10 can be provided to meet various propulsion speed, propulsion power and immersion depth requirements. Marine propellers 10 with different performances can share a frame 11 and even a propulsion mechanism 12, which can save costs.

[0031] This embodiment does not limit whether the propulsion power, propulsion speed, and immersion depth of the at least two propulsion mechanisms 12 in the propeller 10 are the same.

[0032] Optionally, the other end of the adapter 13 in this embodiment, ie, the end connected to the propulsion mechanism 12 , is provided with at least two mounting surfaces, and the mounting surfaces are used to connect to the propulsion mechanism 12 .

[0033] The number of mounting surfaces is the same as the number of propulsion mechanisms 12, and each mounting surface is connected to only one propulsion mechanism 12. Specifically, the marine propulsion unit 10 of this embodiment includes two propulsion mechanisms 12, and the other end of the adapter 13 is provided with two mounting surfaces, each of which is connected to a propulsion mechanism 12.

[0034] In this embodiment, a separate mounting surface is provided for each propulsion mechanism 12 , which can avoid mutual interference between the propulsion mechanisms 12 and facilitate the separate assembly, disassembly and replacement of each propulsion mechanism 12 .

[0035] Optionally, the planes on which at least two mounting surfaces of this embodiment lie intersecting, and the angle between the at least two mounting surfaces is less than 180°. In this manner, by disjointing the at least two mounting surfaces, the width of the adapter 13 can be reduced, thereby reducing the width of the marine propeller 10. The width direction a is perpendicular to the depth direction Z of the marine propeller 10. This reduces the water resistance of the marine propeller 10 and improves its propulsion efficiency.

[0036] Alternatively, refer to Figure 1 In this embodiment, the plane of the end surface of one end of the adapter 13 (i.e., the end connected to the frame 11) intersects the plane of the mounting surface. Specifically, the adapter 13 in this embodiment is configured as a triangular plate. One side of the triangular plate serves as one end of the adapter 13 and is connected to the frame 11. The other two sides of the triangular plate serve as the two mounting surfaces at the other end of the adapter 13, which are respectively connected to the two propulsion mechanisms 12.

[0037] In another embodiment, the adapter can also be arranged in other structures, such as a triangular cone, the bottom surface of the triangular cone serves as one end of the adapter and is connected to the frame, and the three side surfaces of the triangular cone serve as three mounting surfaces at the other end of the adapter and are respectively connected to the three propulsion mechanisms.

[0038] In other embodiments, the adapter may also have other structures.

[0039] This application proposes another embodiment of a marine propulsion device, such as Figure 2 As shown, Figure 2 1 is a structural diagram of another embodiment of the marine propulsion system of the present application. The difference between the marine propulsion system 20 of this embodiment and the marine propulsion system 10 is that the at least two mounting surfaces of the adapter 21 of this embodiment connecting the at least two propulsion mechanisms 12 are arranged in parallel.

[0040] Specifically, the other end of the adapter 21 is provided with two parallel mounting surfaces, each of which is connected to a propulsion mechanism 12. In this way, the force arm of the propulsion mechanism 12 can be shortened, making the force structure better.

[0041] Optionally, at least two mounting surfaces of this embodiment are located in the same plane, and the end surface of one end of the adapter 21 is arranged parallel to the mounting surface. For example, the adapter 21 is arranged in a plate shape, which can reduce the processing difficulty of the adapter 21.

[0042] Optionally, at least two mounting surfaces of this embodiment are arranged along a first direction X, wherein the first direction X is perpendicular to the axial direction Y of the propeller 122 and parallel to the horizontal plane P, as shown in FIG. Figure 3 In this way, mutual shielding between the multiple propulsion mechanisms 12 can be reduced, thereby improving the propulsion efficiency.

[0043] Optionally, the above-mentioned marine propulsion unit of the present application may further include a driver, which is arranged in the chassis and is connected to the power mechanism to provide a driving electrical signal to the power mechanism to control the operation of the power mechanism.

[0044] The power mechanism may include a drive cable (not shown) and a motor (not shown), wherein the drive cable is connected to the motor and connected to a driver in the frame, and the driver provides a drive electrical signal to the motor via the drive cable.

[0045] The motor can directly drive the corresponding propeller.

[0046] In other embodiments, a transmission mechanism may be provided between the motor and the propeller.

[0047] It should be noted that the rotation directions of the multiple propellers in the above-mentioned embodiments of the present application can be the same direction or include two opposite directions, which can offset the stern effect of the rotating frame, especially for the marine propeller with an even number of propellers that equally divide the power, which can significantly improve the influence of the stern effect, thereby making the operation of the marine propeller more stable and improving its maneuverability.

[0048] The above-mentioned marine propeller of the present application is equipped with multiple propellers. By adjusting the transmission distance, the water-blocking area in front of the propeller can be designed to be relatively small, and the multi-propeller output makes the propeller propulsion efficiency higher and reduces power loss. At the same time, multiple propellers are more stable and reliable during operation, improving the stability of the marine propeller and enhancing the user experience. In addition, the provision of multiple propellers means that even if one propeller is damaged, the other propellers can still operate normally, greatly improving the safety and fault tolerance of the marine propeller, and effectively ensuring the safety of passengers.

[0049] This application further proposes a ship, such as Figure 4 As shown, Figure 4 1 is a schematic diagram of the structure of an embodiment of a vessel of the present application. The vessel 60 of this embodiment includes a marine propeller 50 and a hull 61. The marine propeller 50 is mounted on the stern of the hull 61. The structure and operating principle of the marine propeller 50 can be found in the above embodiments.

[0050] Furthermore, the ship 60 of this embodiment also includes a control mechanism 62, a driving mechanism 63 and a power supply 64, all of which are arranged on the hull 61; the driving mechanism 63 is respectively connected to the control mechanism 62 and the ship propeller 50, and the control mechanism 62 controls the operation of the driving mechanism 63 to drive the ship propeller 50 to work; the power supply 64 is respectively connected to the ship 60 and the control mechanism 62 and the driving mechanism 63 to supply power to the ship 60, the control mechanism 62, the driving mechanism 63, etc.

[0051] In other embodiments, the driving mechanism of the ship can also directly drive the power mechanism of the marine propeller 50 to operate.

[0052] The marine propulsion unit 50 of this embodiment is an outboard motor.

[0053] In other embodiments, the marine propeller may also be an inboard engine, that is, the marine propeller is disposed inside the hull.

[0054] The marine propulsion device of the present application is provided with at least two propulsion mechanisms and a frame for connecting to a ship, the propulsion mechanism is connected to the frame in a detachable manner, wherein the propulsion mechanism includes a power mechanism and a propeller connected to the power mechanism. The marine propulsion device of the present application is provided with at least two propulsion mechanisms, which can achieve coverage of different power segments through the power parallel combination of at least two propulsion mechanisms, so that the overall propulsion power of the marine propulsion device is the superposition of the propulsion power of all propellers, which can significantly improve the propulsion efficiency of the marine propulsion device; and the propulsion mechanism of the present application can be detachable from the frame, so that the marine propulsion device can be adapted to propulsion mechanisms of various power sizes, expand the scope of application, and save costs; further, the present application is provided with at least two propulsion mechanisms, which can avoid the marine propulsion device from losing propulsion force when one or part of the propulsion mechanisms fail, causing problems of life and property safety, therefore, it can increase the redundancy of the marine propulsion device and improve the safety of the marine propulsion device. Furthermore, the present application can share the required propulsion power of the marine propeller through at least two propulsion mechanisms, thereby reducing the volume of the power mechanism in a single propulsion mechanism, such as a motor, and reducing the area of ​​the propeller blocked by the water-facing section of the propulsion mechanism, thereby improving the propulsion efficiency of the propulsion mechanism.

[0055] The above description is only an implementation method of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A marine propeller, characterized in that: The marine propeller comprises: a frame for connection to the hull of a vessel; at least two propulsion mechanisms, wherein the propulsion mechanisms are detachably connected to the frame; Wherein, the propulsion mechanism includes: a power mechanism and a propeller connected to the power mechanism, wherein the power mechanism provides power to the propeller to drive the propeller to rotate; An adapter, one end of which is detachably connected to the frame, and the other end of which is detachably connected to the propulsion mechanism.

2. The marine propulsion unit according to claim 1, wherein: The other end of the adapter is provided with at least two mounting surfaces, and the mounting surfaces are used to connect with the propulsion mechanism.

3. The marine propulsion unit according to claim 2, wherein: The at least two mounting surfaces are arranged in parallel.

4. The marine propulsion unit according to claim 3, wherein: The at least two mounting surfaces are located in the same plane, and an end surface of one end of the adapter is arranged parallel to the mounting surface.

5. The marine propulsion unit according to claim 2, characterized in that: The planes where the at least two mounting surfaces are located intersect with each other, and the angle between the at least two mounting surfaces is less than 180°.

6. The marine propulsion unit according to claim 5, characterized in that: The plane where the end surface of one end of the adapter is located intersects with the plane where the installation surface is located.

7. The marine propulsion unit according to claim 2, wherein: The at least two mounting surfaces are arranged along a first direction, wherein the first direction is perpendicular to the axial direction of the propeller and parallel to a horizontal plane.

8. The marine propulsion unit according to claim 1, wherein: The propulsion mechanism also includes a shell, which is connected to the frame and has a receiving cavity. The power mechanism is arranged in the receiving cavity. The power mechanism includes an output shaft, which extends out of the shell and is connected to the propeller.

9. The marine propeller according to claim 1, characterized in that: The marine propulsion system further comprises: The drivers are respectively connected to the power mechanisms and are used to control the operation of the power mechanisms.

10. A ship, characterized in that: The marine propeller comprises the marine propeller according to any one of claims 1 to 9.

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