Marine pod propulsion device and ship

Abstract

The utility model discloses a marine pod propelling device and a ship, and relates to the technical field of propelling devices.The marine pod propelling device comprises a propelling part, the propelling part comprises a hanging connection structure, a plurality of propellers and a plurality of driving motors, the propellers are sequentially arranged in the first direction, and the driving motors are arranged in the first direction; the multiple propellers are arranged in the first direction, the rotating axis of each propeller is parallel to the first direction, the multiple driving motors are connected with the multiple propellers correspondingly so that the multiple driving motors can drive the corresponding propellers to rotate correspondingly, the multiple driving motors are all fixedly connected with the hanging connection structure, and the multiple driving motors are fixedly connected with the hanging connection structure. And the plurality of driving motors are configured to be independently assembled. According to the marine pod propelling device, the driving motors are configured to be independently assembled, so that the assembly difficulty of the marine pod propelling device can be reduced, the assembly efficiency of the marine pod propelling device can be improved, and the reliability of the marine pod propelling device can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of propulsion devices, in particular to a marine pod propulsion device and a ship with the same. BACKGROUND

[0002] In the related art, the existing marine pod propulsion device can include multiple motors, and the multiple motors are configured as an integral structure. The components of each motor are integrated and assembled as a whole, and then fixedly connected with the suspension structure. The installation difficulty is high, which affects the assembly efficiency. CONTENT OF THE UTILITY MODEL

[0003] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, one object of the present application is to provide a marine pod propulsion device, which can reduce the assembly difficulty of the marine pod propulsion device, improve the assembly efficiency of the marine pod propulsion device, and improve the reliability of the marine pod propulsion device.

[0004] The present application also provides a ship using the above-mentioned marine pod propulsion device.

[0005] In a first aspect, the embodiments of the present application provide a marine pod propulsion device, which includes a propulsion part. The propulsion part includes a suspension structure, multiple propellers, and multiple drive motors. The multiple propellers are arranged in sequence along a first direction, and the rotation axis of each propeller is parallel to the first direction. The multiple drive motors are connected with the multiple propellers respectively, so that the multiple drive motors drive the corresponding propellers to rotate respectively. The multiple drive motors are fixedly connected with the suspension structure, and the multiple drive motors are configured to be independently assembled.

[0006] In the above technical solution, by configuring the multiple drive motors to be independently assembled, the assembly difficulty of the marine pod propulsion device can be reduced, the assembly efficiency of the marine pod propulsion device can be improved, and the reliability of the marine pod propulsion device can be improved.

[0007] In some embodiments, along a second direction, the multiple drive motors are located on the same side of the suspension structure. The multiple drive motors are arranged in sequence along the first direction. Each drive motor has a drive shaft and a thrust bearing. The drive shaft is fixedly provided with a corresponding propeller. The drive shaft of each drive motor extends along the first direction. The thrust bearing is sleeved on the corresponding drive shaft. The thrust bearing of at least one drive motor is opposite to the suspension structure along the second direction. The first direction and the second direction are perpendicular.

[0008] In the technical scheme, the plurality of driving motors drive the corresponding propellers to rotate through the corresponding driving shafts, the thrust bearing can bear the axial thrust generated when the corresponding driving motor operates, so that the corresponding driving shaft can stably rotate without axial movement, and the thrust bearing of at least one driving motor is arranged opposite the suspension structure along the second direction, so that the length of the force arm of the thrust acting on the suspension structure can be reduced, the strength performance of the propulsion part can be improved, the anti-vibration capability of the propulsion part can be enhanced, the vibration and swing of the propulsion part can be reduced, the reliability of the propulsion part can be improved, and the assembly difficulty of the corresponding driving motor can be reduced.

[0009] In some embodiments, the plurality of driving motors includes a first driving motor and a second driving motor, and along the first direction, the thrust bearing of the first driving motor is located at an end wall of the first driving motor facing the second driving motor, and the thrust bearing of the second driving motor is located at an end wall of the second driving motor facing the first driving motor.

[0010] In the technical scheme, the thrust bearings of the first driving motor and the second driving motor can be arranged opposite the suspension structure along the second direction, the length of the force arm of the axial thrust acting on the suspension structure can be reduced, the axial thrust can be efficiently transmitted, and the propulsion efficiency can be improved.

[0011] In some embodiments, along the first direction, the plurality of propellers are located on a side of the first driving motor away from the second driving motor, and the driving shaft of the second driving motor penetrates the driving shaft of the first driving motor and is rotatable relative to the driving shaft of the first driving motor.

[0012] In the technical scheme, the driving shaft of the second driving motor penetrates the driving shaft of the first driving motor and is rotatable relative to the driving shaft of the first driving motor, the driving shaft of the second driving motor can drive the corresponding propeller to rotate, the risk of conflict between the driving shaft of the first driving motor and the driving shaft of the second driving motor can be reduced, the reliability of the driving motor driving the corresponding propeller to rotate can be improved, and the compactness of the arrangement of the first driving motor and the second driving motor can be improved, so that the internal structure of the propulsion part is compact, and the space occupied by the driving motor can be reduced.

[0013] In some embodiments, the marine pod propulsion device further includes a first bearing, the driving shaft of the first driving motor is formed with a through hole extending along the first direction, the driving shaft of the second driving motor penetrates the through hole, and the first bearing is assembled in the through hole and sleeved on the driving shaft of the second driving motor.

[0014] In the technical solution, the first bearing is arranged, so that the driving shaft of the second driving motor can rotate more smoothly relative to the driving shaft of the first driving motor. The first bearing can effectively bear the radial force, so that the driving shafts of the first driving motor and the second driving motor can rotate in the correct position, and the risk of the driving shafts of the first driving motor and the second driving motor sagging or deviating due to the radial force is reduced.

[0015] In some embodiments, a limiting end face facing the first bearing is formed in the through hole, and the limiting end face is located between the first bearing and the second driving motor in the first direction. The limiting end face abuts against the first bearing to limit the movement of the first bearing towards the second driving motor.

[0016] In the technical solution, the limiting end face can limit the movement of the first bearing towards the second driving motor, so that the reliability of the first bearing is improved, and the reliability of the driving shaft of the second driving motor when rotating is improved.

[0017] In some embodiments, the marine pod propulsion device further comprises a sealing member, at least a part of the sealing member is assembled in the through hole and is sleeved on the driving shaft of the second driving motor. In the first direction, the sealing member is located on the side of the first bearing away from the second driving motor. The sealing member is used to seal the gap between the driving shaft of the second driving motor and the driving shaft of the first driving motor.

[0018] In the technical solution, the sealing member is used to seal the gap between the driving shaft of the second driving motor and the driving shaft of the first driving motor, so that the risk of seawater and impurities in the sea entering the gap between the driving shaft of the second driving motor and the driving shaft of the first driving motor is reduced, and the reliability of the driving shafts is improved.

[0019] In some embodiments, the hanging connection structure is formed with a wire channel, and a plurality of driving motors are located on the same side of the hanging connection structure in the second direction. Each driving motor has a motor connecting line, and the motor connecting line of each driving motor is arranged in the wire channel. The first direction is perpendicular to the second direction.

[0020] In the technical solution, the motor connecting lines of the plurality of driving motors are arranged in the wire channel, so that the motor connecting lines are arranged in an orderly and regular manner. The risk of the motor connecting lines being exposed is reduced, and the reliability of the plurality of driving motors is improved.

[0021] In some embodiments, the plurality of driving motors comprises a first driving motor and a second driving motor. The first driving motor and the second driving motor are arranged in sequence in the first direction. The motor connecting line of the first driving motor is arranged in the end wall of the first driving motor facing the second driving motor. The motor connecting line of the second driving motor is arranged in the end wall of the second driving motor facing the first driving motor.

[0022] In the technical solution, the motor connection lines of the first driving motor and the second driving motor are drawn from opposite end walls, which can reduce the assembly difficulty of the driving motors, make the motor connection lines more clear and orderly, and effectively utilize the internal space of the marine pod propulsion device.

[0023] In some embodiments, the end wall of the first driving motor facing the second driving motor and the end wall of the second driving motor facing the first driving motor are spaced apart along a first direction to form a wiring space, and the wiring space and the wiring channel are adjacent and communicated along a second direction.

[0024] In the technical solution, the wiring space and the wiring channel are adjacent and communicated, which can improve the space utilization of the marine pod propulsion device, protect the motor connection lines of the driving motors, prolong the service life of the motor connection lines, improve the stability and reliability of the marine pod propulsion device, make the wiring arrangement of the motor connection lines simple and clear, improve the wiring efficiency and accuracy, and improve the installation efficiency of the driving motors.

[0025] In some embodiments, the rotation directions of any two adjacent propellers are opposite.

[0026] In the technical solution, the rotation directions of any two adjacent propellers are opposite, which can improve the propulsion efficiency, improve the stability and maneuverability of the ship, reduce the vibration of the ship body, and improve the comfort of the ship.

[0027] In some embodiments, the marine pod propulsion device further comprises a rotating part connected with the propelling part, and the rotating part is configured to drive the propelling part to rotate around a second direction perpendicular to the first direction.

[0028] In the technical solution, the rotating part and the propelling part are arranged in sequence along the second direction, the rotating part can drive the propelling part to rotate around the second direction, and the structure of the rotating part can be different according to the actual needs of the ship. According to the different structures of the rotating part, the rotating part can drive the propelling part to rotate by different angles.

[0029] In a second aspect, the embodiments of the present application also provide a ship comprising the marine pod propulsion device of the above embodiments.

[0030] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0031] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, including the appended drawings.

[0032] Figure 1 is a perspective view of a marine pod propulsion device provided by some embodiments of the present application;

[0033] Figure 2 is a cross-sectional view of the marine pod propulsion device from another angle provided by some embodiments of the present application;

[0034] Figure 3 is a cross-sectional view of the propulsion part provided by some embodiments of the present application;

[0035] Figure 4 is a cross-sectional view of the second driving motor provided by some embodiments of the present application;

[0036] Figure 5 is a cross-sectional view of the first driving motor provided by some embodiments of the present application;

[0037] Figure 6 is a schematic view of the slewing part of one embodiment of the present application;

[0038] Figure 7 is a schematic view of the slewing part and the propulsion part of another embodiment of the present application.

[0039] Reference signs:

[0040] a marine pod propulsion device 1,

[0041] a propulsion part 10, a pendant structure 11, a wire channel 111, a propeller 12, a first propeller 121, a second propeller 122, a propeller cap 123, a first driving motor 13, a first stator 131, a first rotor 132, a first radial bearing 133, a sealing ring 134, a first wire hole 135, a first end wall 136, a second driving motor 14, a second stator 141, a second rotor 142, a second radial bearing 143, a second wire hole 144, a second end wall 145, a driving shaft 15, a thrust bearing 16, a through hole 17, a limiting end face 171, a wire space 18, a motor connecting wire 19,

[0042] a first bearing 20,

[0043] a sealing member 30,

[0044] a slewing part 40,

[0045] a slip ring 51, a driving mechanism 52, a reduction box 53, a first output shaft 531, a first slewing bearing 54, a first slewing sealing member 55, a first slewing flange 56,

[0046] a junction box 61, a horizontal slewing driving device 62, a speed changing device 63, a second output shaft 631, a second slewing bearing 64, a second slewing sealing member 65, a second slewing flange 66. DETAILED DESCRIPTION

[0047] The embodiments of the present application will be described below in detail with examples thereof shown in the accompanying drawings, in which the same or similar components are denoted by the same or similar reference numerals, and therefore the description will be given only with respect to the differences between the embodiments. The embodiments described below by reference to the drawings are illustrative in all aspects and are not intended to limit the application.

[0048] For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described in detail below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0049] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs; the terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion.

[0050] In the present application, the phrase "embodiments" means that the specific features, structures or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The appearance of this phrase at various places in the specification does not necessarily mean the same embodiments, nor is it independent or alternative embodiments to each other.

[0051] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mount", "connect", "connection", "attach" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0052] In the embodiments of the present application, the same reference numerals represent the same components, and for the sake of brevity, detailed description of the same components is omitted in different embodiments. It should be understood that the thickness, length, width and other dimensions of various components in the embodiments of the present application shown in the drawings, as well as the overall thickness, length, width and other dimensions of the integrated device, are only exemplary and should not constitute any limitation on the present application.

[0053] "Multiple" appearing in the present application means two or more.

[0054] The pod propulsion device for ship is a kind of propulsion device applied to a ship, which integrates the functions of propulsion and steering. The pod propulsion device for ship has a rotating part and a propulsion part. The rotating part can be used to drive the propulsion part to rotate, so as to accurately control the heading of the ship. The propulsion part can drive the propeller to rotate by the motor, so as to generate the propulsion force to push the ship forward. The pod propulsion device for ship integrates the motor and the propeller in a rotatable pod, and the pod is usually installed on the underwater part of the ship. The pod propulsion device for ship is suitable for various types of ships, especially for ships with high requirements for maneuverability, comfort and space utilization.

[0055] In the related art, the existing pod propulsion device for ship can include multiple motors. The multiple motors are configured as an integral structure. The components constituting each motor are integrated and assembled into an integral structure, and then fixedly connected with the hanging connection structure. The installation difficulty is high, which affects the assembly efficiency.

[0056] Based on the above considerations, in order to solve the problem of difficult assembly of the existing pod propulsion device for ship, after deep research, a pod propulsion device for ship is designed. The pod propulsion device for ship can include a propulsion part. The propulsion part includes a hanging connection structure, multiple propellers and multiple drive motors. The multiple propellers are arranged in sequence along a first direction, and the rotation axis of each propeller is parallel to the first direction. The multiple drive motors are respectively connected with the multiple propellers, so that the multiple drive motors respectively drive the corresponding propellers to rotate. The multiple drive motors are fixedly connected with the hanging connection structure, and the multiple drive motors are configured to be independently assembled.

[0057] In the pod propulsion device for ship with such a structure, by setting the multiple drive motors to be independently assembled, the assembly difficulty of the pod propulsion device for ship can be reduced, which is beneficial to improve the assembly efficiency of the pod propulsion device for ship and improve the reliability of the pod propulsion device for ship.

[0058] According to some embodiments of the present application, as shown in Figures 1-7 The pod propulsion device for ship 1 can include a propulsion part 10. The propulsion part 10 includes a hanging connection structure 11, multiple propellers 12 and multiple drive motors. The multiple propellers 12 are arranged in sequence along a first direction, and the rotation axis of each propeller 12 is parallel to the first direction. The multiple drive motors are respectively connected with the multiple propellers 12, so that the multiple drive motors respectively drive the corresponding propellers 12 to rotate. The multiple drive motors are fixedly connected with the hanging connection structure 11, and the multiple drive motors are configured to be independently assembled.

[0059] The propelling part 10 can be located below the water surface, and the propelling part 10 can be used to drive the movement of a cruise ship, a passenger ship, an offshore platform, an icebreaker, and the like. The application takes the propelling part 10 driving the movement of a ship as an example for description. The plurality of propellers 12 can be arranged in sequence along a first direction. When the ship-hoisting pod propelling device 1 is arranged in the direction as shown in Figure 1 , the first direction is the X direction in Figure 1 . The plurality of propellers 12 can be arranged relatively and spaced apart along the first direction. The rotation axis of each propeller 12 can be parallel to the first direction. The rotation axes of the plurality of propellers 12 can be collinear. The plurality of propellers 12 can rotate around the same rotation axis, thereby reducing energy loss, improving propelling efficiency, and better optimizing airflow or water flow, reducing vortex and turbulence, and reducing noise by arranging the plurality of propellers 12. The plurality of driving motors can be connected with the plurality of propellers 12 respectively. Each driving motor has a corresponding propeller 12 connected therewith. The plurality of driving motors can drive the corresponding propellers 12 to rotate, thereby achieving the effect of independently controlling the speed and direction of each propeller 12 of the ship-hoisting pod propelling device 1, achieving faster response and more accurate control, and improving the reliability of the ship-hoisting pod propelling device 1 if one of the propellers 12 fails, and the other propellers 12 can still work.

[0060] The plurality of driving motors are fixedly connected with the hoisting connection structure 11. The housings of the plurality of driving motors can be connected with the hoisting connection structure 11 by welding, bolt connection, or the like. The hoisting connection structure 11 can be formed with a wire channel 111 extending along the height direction of the hoisting connection structure 11. The plurality of driving motors can be connected to the wire channel 111 inside the hoisting connection structure 11 upward, thereby improving the compactness of the installation of the plurality of driving motors. When the ship-hoisting pod propelling device 1 is arranged in the direction as shown in Figure 1 , the height direction of the hoisting connection structure 11 is the Z direction in Figure 1 , and the height direction of the hoisting connection structure 11 is parallel to the height direction of the ship-hoisting pod propelling device 1. As an example, the hoisting connection structure 11 can be constructed as a double-layer structure. The inner layer structure of the hoisting connection structure 11 can have a circular cross-sectional shape. The outer layer structure of the hoisting connection structure 11 can have an elliptical or symmetrical airfoil cross-sectional shape.

[0061] The plurality of drive motors can adopt a modular design, and the plurality of drive motors can be independently assembled together. After the plurality of drive motors are independently assembled, the plurality of drive motors are connected to the hoisting structure 11. It should be noted that the components of each drive motor are independently assembled, and each drive motor is constructed as an independent individual. The plurality of drive motors are connected to the hoisting structure 11 and cooperate with each other to achieve the effect of driving the corresponding propeller 12 to rotate, thereby reducing the assembly difficulty of the marine nacelle propulsion device 1. When a drive motor fails, the other normally operating drive motors can still maintain partial or full functions, avoiding complete paralysis of the marine nacelle propulsion device 1 due to a single drive motor failure. Maintenance personnel can directly disassemble, replace or repair the faulty drive motor, which is beneficial to shorten the maintenance time, reduce the maintenance cost, and improve the reliability of the marine nacelle propulsion device 1.

[0062] In the above technical solution, by setting the plurality of drive motors to be independently assembled, the assembly difficulty of the marine nacelle propulsion device 1 can be reduced, the assembly efficiency of the marine nacelle propulsion device 1 can be improved, and the reliability of the marine nacelle propulsion device 1 can be improved.

[0063] According to some embodiments of the present application, as shown in Figures 2-5 As shown in FIG. 1, in the second direction, the plurality of drive motors are located on the same side of the hoisting structure 11, and the plurality of drive motors are arranged in sequence along the first direction. Each drive motor has a drive shaft 15 and a thrust bearing 16. The drive shaft 15 is fixed with a corresponding propeller 12. The drive shaft 15 of each drive motor extends along the first direction. The thrust bearing 16 is sleeved on the corresponding drive shaft 15. The thrust bearing 16 of at least one drive motor is opposite to the hoisting structure 11 in the second direction. The first direction and the second direction are perpendicular.

[0064] The plurality of driving motors are located on the same side of the hanger structure 11 along a second direction (i.e., the height direction of the hanger structure 11), and the first direction and the second direction are perpendicular. When the marine pod propulsion device 1 is installed on a ship, the plurality of driving motors can all be located below the hanger structure 11, and the plurality of driving motors can be arranged in sequence along the first direction. Each driving motor has a driving shaft 15 and a thrust bearing 16, the driving shaft 15 of each driving motor extends along the first direction, and the thrust bearing 16 of each driving motor is sleeved on the corresponding driving shaft 15. The thrust bearing 16 can be used to bear the axial thrust generated by the corresponding driving motor during operation, and the thrust bearing 16 can bear the axial load along the first direction, i.e., the axial thrust generated when the driving shaft 15 drives the propeller 12 to rotate, so that the corresponding driving shaft 15 can stably rotate without axial movement. As an example, the thrust bearing 16 can be connected to the corresponding driving motor through a bearing seat, which can be connected to the corresponding driving motor by welding, bolt connection, etc. The thrust bearing 16 is sleeved on the corresponding driving shaft 15, and the thrust bearing 16 provides support between the corresponding driving shaft 15 and the corresponding bearing seat.

[0065] Along the first direction, the end of the driving shaft 15 away from the corresponding driving motor can be fixedly provided with the corresponding propeller 12, and when the driving shaft 15 rotates, the driving shaft 15 can drive the corresponding propeller 12 to rotate. As an example, the end of the driving shaft 15 away from the corresponding driving motor along the first direction can be formed with a spline, the propeller 12 can be formed with a mounting hole, the inner surface of the mounting hole can be formed with a tooth structure, and the spline can be assembled in the mounting hole. The propeller 12 can be assembled with the corresponding driving shaft 15, so that the driving shaft 15 can drive the propeller 12 to rotate when the driving shaft 15 rotates. The driving shaft 15 can be sleeved with a limiting ring, and the limiting ring can be two, which are located on both sides of the propeller 12 along the first direction. The two limiting rings can be interference-fitted with the corresponding driving shaft 15, thereby reducing the risk of axial movement of the propeller 12 along the driving shaft 15 (i.e., the first direction), and improving the reliability of the propeller 12 during rotation. As another example, the propeller 12 can be sleeved on the corresponding driving shaft 15, and a bolt can be inserted through the propeller 12 and assembled with the driving shaft 15, so that the driving shaft 15 and the propeller 12 are fixedly connected, thereby reducing the risk of rotation of the propeller 12 relative to the driving shaft 15 and axial movement of the propeller 12 along the driving shaft 15, and improving the reliability of the propeller 12 during rotation.

[0066] The axial thrust borne by the thrust bearing 16 can act on the suspension structure 11, and the thrust bearing 16 of at least one driving motor is opposite to the suspension structure 11 in the second direction, so that the axial thrust borne by the thrust bearing 16 can be transmitted in the second direction, the length of the force arm of the thrust borne by the corresponding thrust bearing 16 acting on the suspension structure 11 can be reduced, the axial thrust generated by the corresponding driving motor can be effectively transmitted to the suspension structure 11, and then to the supporting structure such as the ship body, the strength performance of the propulsion part 10 can be improved, the anti-vibration capability of the propulsion part 10 can be enhanced, the vibration and swing of the propulsion part 10 can be reduced, the reliability of the propulsion part 10 is higher, and the assembly difficulty of the corresponding driving motor is reduced. By reasonably setting the relative positions of the thrust bearing 16 and the suspension structure 11, the transmission path of the thrust borne by the corresponding thrust bearing 16 is clearer and more efficient, the ship pod propulsion device 1 can be in a stable stress state during work, and the probability of structural deformation or damage of the ship pod propulsion device 1 due to poor force transmission is reduced.

[0067] In the above technical solution, the plurality of driving motors drive the corresponding propellers 12 to rotate through the corresponding driving shafts 15, the thrust bearing 16 can bear the axial thrust generated by the corresponding driving motor during operation, so that the corresponding driving shaft 15 can stably rotate without axial movement, and by setting the thrust bearing 16 of at least one driving motor opposite to the suspension structure 11 in the second direction, the length of the force arm of the thrust borne by the corresponding thrust bearing 16 acting on the suspension structure 11 can be reduced, the strength performance of the propulsion part 10 can be improved, the anti-vibration capability of the propulsion part 10 can be enhanced, the vibration and swing of the propulsion part 10 can be reduced, the reliability of the propulsion part 10 is higher, and the assembly difficulty of the corresponding driving motor is reduced.

[0068] According to some embodiments of the present application, as shown in Figure 2 and Figure 3 The plurality of driving motors can include a first driving motor 13 and a second driving motor 14, and in the first direction, the thrust bearing 16 of the first driving motor 13 is located on the end wall of the first driving motor 13 facing the second driving motor 14, and the thrust bearing 16 of the second driving motor 14 is located on the end wall of the second driving motor 14 facing the first driving motor 13.

[0069] Wherein, the application takes two driving motors as an example for illustration, the multiple driving motors can include a first driving motor 13 and a second driving motor 14, the first driving motor 13 and the second driving motor 14 can be oppositely arranged and spaced apart along a first direction, and the first driving motor 13 and the second driving motor 14 both have a driving shaft 15 and a thrust bearing 16. Along the first direction, the thrust bearing 16 of the first driving motor 13 is located at an end wall of the first driving motor 13 facing the second driving motor 14, and the thrust bearing 16 of the first driving motor 13 can bear the axial thrust generated when the first driving motor 13 operates, and the thrust bearing 16 of the second driving motor 14 can be located at an end wall of the second driving motor 14 facing the first driving motor 13, and the thrust bearing 16 of the second driving motor 14 can bear the axial thrust generated when the second driving motor 14 operates.

[0070] The thrust bearing 16 of the first driving motor 13 and the thrust bearing 16 of the second driving motor 14 can be oppositely arranged and spaced apart along the first direction, and the thrust bearing 16 of the first driving motor 13 and the thrust bearing 16 of the second driving motor 14 can both be opposite to the suspension structure 11 along the second direction, which can reduce the length of the force arm of the axial thrust generated by the first driving motor 13 acting on the suspension structure 11, can reduce the length of the force arm of the axial thrust generated by the second driving motor 14 acting on the suspension structure 11, the transmission path of the axial thrust force is short and clear, which can reduce energy loss and improve propulsion efficiency.

[0071] In the above technical solution, the thrust bearing 16 of the first driving motor 13 and the thrust bearing 16 of the second driving motor 14 can both be opposite to the suspension structure 11 along the second direction, which can achieve the effect of reducing the length of the force arm of the axial thrust acting on the suspension structure 11, can achieve the effect of efficiently transmitting the axial thrust, and is beneficial to improve the propulsion efficiency.

[0072] As an example, as Figure 5As shown, the first driving motor 13 can include a first stator 131, a first rotor 132 and a first radial bearing 133, the first stator 131 can be connected with a housing of the first driving motor 13, the first rotor 132 can rotate relative to the first stator 131, a driving shaft 15 of the first driving motor 13 can be connected with the first rotor 132, the first rotor 132 can drive the driving shaft 15 of the first driving motor 13 to rotate, the first radial bearing 133 can be located at an end wall of the first driving motor 13 away from the second driving motor 14 along a first direction, the first radial bearing 133 is sleeved on the driving shaft 15 of the first driving motor 13, an inner ring of the first radial bearing 133 can be interference-fitted with the driving shaft 15 of the first driving motor 13, an outer ring of the first radial bearing 133 can be fixedly connected with the end wall of the first driving motor 13, and relative rotation between the inner ring and the outer ring of the first radial bearing 133 enables the driving shaft 15 of the first driving motor 13 to rotate smoothly relative to the first driving motor 13.

[0073] The first driving motor 13 further has a sealing ring 134, which can be a rubber ring and is sleeved on the driving shaft 15 of the first driving motor 13. Along the first direction, the sealing ring 134 can be located at a side of the first radial bearing 133 away from the second driving motor 14, the sealing ring 134 is used for sealing the first driving motor 13, and can prevent moisture and contaminants from entering the first driving motor 13, so that electronic elements and electrical circuits inside the first driving motor 13 can work normally and the risk of failure of the first driving motor 13 due to environmental factors can be reduced.

[0074] As an example, as shown in FIG. 1, Figure 4 As shown, the second driving motor 14 can include a second stator 141, a second rotor 142 and a second radial bearing 143, the second stator 141 can be connected with a housing of the second driving motor 14, the second rotor 142 can rotate relative to the second stator 141, a driving shaft 15 of the second driving motor 14 can be connected with the second rotor 142, the second rotor 142 can drive the driving shaft 15 of the second driving motor 14 to rotate, the second radial bearing 143 can be located at an end wall of the second driving motor 14 away from the second driving motor 14 along a first direction, the second radial bearing 143 is sleeved on the driving shaft 15 of the second driving motor 14, an inner ring of the second radial bearing 143 can be interference-fitted with the driving shaft 15 of the second driving motor 14, an outer ring of the second radial bearing 143 can be fixedly connected with the end wall of the second driving motor 14, and relative rotation between the inner ring and the outer ring of the second radial bearing 143 enables the driving shaft 15 of the second driving motor 14 to rotate smoothly relative to the second driving motor 14.

[0075] According to some embodiments of the present application, as shown in FIG. 1, Figure 2 and Figure 3As shown, along the first direction, the plurality of propellers 12 are located on one side of the first driving motor 13 away from the second driving motor 14, and the driving shaft 15 of the second driving motor 14 is arranged through the driving shaft 15 of the first driving motor 13 and can rotate relative to the driving shaft 15 of the first driving motor 13.

[0076] As shown, along the first direction, the plurality of propellers 12 are located on one side of the first driving motor 13 away from the second driving motor 14, and the driving shaft 15 of the second driving motor 14 is arranged through the driving shaft 15 of the first driving motor 13 and can rotate relative to the driving shaft 15 of the first driving motor 13. The first driving motor 13 and the second driving motor 14 are arranged on the same side of the plurality of propellers 12 along the first direction, and the driving shaft 15 of the first driving motor 13 and the driving shaft 15 of the second driving motor 14 are arranged through each other and can rotate relative to each other. The second driving motor 14 can drive the corresponding propeller 12 to rotate, and the risk of interference between the driving shaft 15 of the first driving motor 13 and the driving shaft 15 of the second driving motor 14 is reduced, which is beneficial to improve the reliability of the driving motor driving the corresponding propeller 12 to rotate. By arranging the driving shaft 15 of the second driving motor 14 through the driving shaft 15 of the first driving motor 13, the compactness of the arrangement of the first driving motor 13 and the second driving motor 14 can be improved, the internal structure of the propulsion part 10 is compact, and the space occupation of the driving motor is reduced.

[0077] As an example, the embodiment of the present application takes two propellers 12 as an example, two driving motors can be connected with two propellers 12 one by one, and the two propellers 12 can be a first propeller 121 and a second propeller 122 respectively. The second propeller 122 can be located on the side of the first propeller 121 away from the first driving motor 13. The driving shaft 15 of the second driving motor 14 penetrates the driving shaft 15 of the first driving motor 13 and is connected with the corresponding propeller 12. The first driving motor 13 can be connected with the first propeller 121, and the second driving motor 14 can be connected with the second propeller 122. The first driving motor 13 can drive the first propeller 121 to rotate, and the second driving motor 14 can drive the second propeller 122 to rotate. The side of the plurality of propellers 12 away from the driving motor can be provided with a propeller cap 123. The propeller cap 123 can be connected with the end face of the driving shaft 15 of the second driving motor 14 by bolts. By arranging the propeller cap 123 on the side of the plurality of propellers 12 away from the driving motor in the first direction, the probability of the plurality of propellers 12 moving in the first direction can be reduced, and the probability of the plurality of propellers 12 falling off can be reduced.

[0078] In the above technical solution, the driving shaft 15 of the second driving motor 14 penetrates the driving shaft 15 of the first driving motor 13 and is rotatable relative to the driving shaft 15 of the first driving motor 13. The driving shaft 15 of the second driving motor 14 can drive the corresponding propeller 12 to rotate, which can reduce the risk of collision between the driving shaft 15 of the first driving motor 13 and the driving shaft 15 of the second driving motor 14, improve the reliability of the driving motor driving the corresponding propeller 12 to rotate, and improve the compactness of the arrangement of the first driving motor 13 and the second driving motor 14, so as to compact the internal structure of the propulsion part 10 and reduce the space occupation of the driving motor.

[0079] According to some embodiments of the present application, as shown in Figure 2 and Figure 3 The marine pod propulsion device 1 can further include a first bearing 20. The driving shaft 15 of the first driving motor 13 is formed with a through hole 17 extending in the first direction. The driving shaft 15 of the second driving motor 14 penetrates the through hole 17. The first bearing 20 is assembled in the through hole 17 and is sleeved on the driving shaft 15 of the second driving motor 14.

[0080] The drive shaft 15 of the first driving motor 13 is formed with a through hole 17 penetrating the drive shaft 15 of the first driving motor 13 in the first direction, and the drive shaft 15 of the second driving motor 14 is arranged in the through hole 17 and connected with the second propeller 122. The first bearing 20 is arranged in the through hole 17, the first bearing 20 is sleeved on the drive shaft 15 of the second driving motor 14, the inner ring of the first bearing 20 is matched with the drive shaft 15 of the second driving motor 14, the outer ring of the first bearing 20 is matched with the drive shaft 15 of the first driving motor 13, and the inner ring and the outer ring of the first bearing 20 rotate relative to each other, so that the drive shaft 15 of the second driving motor 14 rotates relative to the drive shaft 15 of the first driving motor 13. The first bearing 20 can reduce the friction between the drive shaft 15 of the second driving motor 14 and the drive shaft 15 of the first driving motor 13 during rotation, and can make the drive shaft 15 of the second driving motor 14 rotate more smoothly relative to the drive shaft 15 of the first driving motor 13. In addition, the propeller 12 will be subjected to the action of water flow during rotation, these forces will generate radial forces and act on the drive shafts 15 of the first driving motor 13 and the second driving motor 14, and the first bearing 20 can effectively bear the radial forces, so that the drive shafts 15 of the first driving motor 13 and the second driving motor 14 can rotate in the correct position, and the risk of sagging or deviation of the drive shafts 15 of the first driving motor 13 and the second driving motor 14 due to the action of the radial forces is reduced.

[0081] In the above technical solution, by arranging the first bearing 20, the drive shaft 15 of the second driving motor 14 can rotate smoothly relative to the drive shaft 15 of the first driving motor 13. In addition, the first bearing 20 can effectively bear the radial forces, so that the drive shafts 15 of the first driving motor 13 and the second driving motor 14 can rotate in the correct position, and the risk of sagging or deviation of the drive shafts 15 of the first driving motor 13 and the second driving motor 14 due to the action of the radial forces is reduced.

[0082] According to some embodiments of the present application, as shown in Figure 2 、 Figure 3 and Figure 5 , the through hole 17 is formed with a limiting end face 171 facing the first bearing 20, the limiting end face 171 is located between the first bearing 20 and the second driving motor 14 in the first direction, and the limiting end face 171 abuts against the first bearing 20 to limit the movement of the first bearing 20 to the second driving motor 14.

[0083] The through hole 17 is formed with a limiting end face 171 facing the first bearing 20, and the limiting end face 171 can be perpendicular to the first direction. The limiting end face 171 is located on the side of the first bearing 20 facing the second driving motor 14 along the first direction, and the limiting end face 171 is located between the first bearing 20 and the second driving motor 14. The cross-sectional size of the limiting end face 171 is greater than the cross-sectional size of the through hole 17, the first bearing 20 can abut against the limiting end face 171, the limiting end face 171 can limit the movement of the first bearing 20 towards the second driving motor 14, and the probability of the first bearing 20 moving along the first direction is reduced, thereby improving the reliability of the first bearing 20, and further improving the reliability of the driving shaft 15 of the second driving motor 14 when rotating.

[0084] In the above technical solution, the limiting end face 171 can limit the movement of the first bearing 20 towards the second driving motor 14, and the reliability of the first bearing 20 can be improved, thereby improving the reliability of the driving shaft 15 of the second driving motor 14 when rotating.

[0085] According to some embodiments of the present application, as shown in Figure 2 and Figure 3 The marine pod propulsion device 1 can further include a sealing member 30, at least part of the sealing member 30 is fitted in the through hole 17 and is sleeved on the driving shaft 15 of the second driving motor 14, along the first direction, the sealing member 30 is located on the side of the first bearing 20 away from the second driving motor 14, and the sealing member 30 is used to seal the gap between the driving shaft 15 of the second driving motor 14 and the driving shaft 15 of the first driving motor 13.

[0086] The sealing member 30 can be configured as an annular structure, and the sealing member 30 can be a rubber ring or the like. At least part of the sealing member 30 is fitted in the through hole 17, the sealing member 30 can be sleeved on the driving shaft 15 of the second driving motor 14, the outer peripheral wall of the sealing member 30 can abut against the inner wall of the through hole 17, and the inner wall of the sealing member 30 can abut against the driving shaft 15 of the second driving motor 14. Along the first direction, the sealing member 30 is located on the side of the first bearing 20 away from the second driving motor 14, and the first bearing 20 is located between the sealing member 30 and the limiting end face 171. The sealing member 30 is used to seal the gap between the driving shaft 15 of the second driving motor 14 and the driving shaft 15 of the first driving motor 13, which can reduce the probability of impurities in the external environment entering the gap between the driving shaft 15 of the second driving motor 14 and the driving shaft 15 of the first driving motor 13 during the running of the ship, thereby protecting the driving shaft 15 from damage, allowing the driving shaft 15 to operate normally, and being conducive to improving the reliability of the driving shaft 15.

[0087] In the technical solution, the sealing member 30 is used to seal the gap between the drive shaft 15 of the second drive motor 14 and the drive shaft 15 of the first drive motor 13, thereby reducing the risk of impurities in the external environment entering the gap between the drive shaft 15 of the second drive motor 14 and the drive shaft 15 of the first drive motor 13, and facilitating to improve the reliability of the drive shaft 15.

[0088] According to some embodiments of the present application, as shown in Figure 2 and Figure 3 The hanging connection structure 11 is formed with a wire passing channel 111. Along the second direction, the plurality of drive motors are located on the same side of the hanging connection structure 11, each drive motor has a motor connecting wire 19, and the motor connecting wire 19 of each drive motor is arranged in the wire passing channel 111. The first direction and the second direction are perpendicular.

[0089] The hanging connection structure 11 can be formed with a wire passing channel 111 (i.e. the wire passing channel 111 in the above embodiment), and the wire passing channel 111 can extend along the height direction of the hanging connection structure 11. Along the second direction, the plurality of drive motors are located on the same side of the hanging connection structure 11, and when the propulsion part 10 is installed on the ship, the plurality of drive motors can be located below the hanging connection structure 11. Each drive motor has a motor connecting wire 19, and the motor connecting wire 19 of each drive motor can be arranged in the wire passing channel 111. The plurality of drive motors can pass the wire passing channel 111 to output the wires upward, so that the motor connecting wires 19 are arranged in an orderly and regular manner, the probability of the motor connecting wires 19 being tangled together is reduced, the risk of the motor connecting wires 19 being exposed is reduced, and the reliability of the plurality of drive motors is improved.

[0090] In the technical solution, the motor connecting wires 19 of the plurality of drive motors are arranged in the wire passing channel 111, so that the motor connecting wires 19 are arranged in an orderly and regular manner, the risk of the motor connecting wires 19 being exposed is reduced, and the reliability of the plurality of drive motors is improved.

[0091] According to some embodiments of the present application, as shown in Figures 3-5 The plurality of drive motors can include a first drive motor 13 and a second drive motor 14, the first drive motor 13 and the second drive motor 14 are arranged in sequence along the first direction, the motor connecting wire 19 of the first drive motor 13 is arranged in the end wall (hereinafter referred to as the first end wall 136) of the first drive motor 13 facing the second drive motor 14, and the motor connecting wire 19 of the second drive motor 14 is arranged in the end wall (hereinafter referred to as the second end wall 145) of the second drive motor 14 facing the first drive motor 13.

[0092] The plurality of driving motors can include a first driving motor 13 and a second driving motor 14, and the first driving motor 13 and the second driving motor 14 are arranged in sequence along a first direction. The first driving motor 13 and the second driving motor 14 can be oppositely arranged and spaced apart along the first direction. A first end wall 136 of the first driving motor 13 facing the second driving motor 14 can be formed with a first wire outlet hole 135, and a motor connecting wire 19 of the first driving motor 13 passes through the first wire outlet hole 135. The motor connecting wire 19 of the first driving motor 13 can extend out of the first driving motor 13 from one side of the first end wall 136. A second end wall 145 of the second driving motor 14 facing the first driving motor 13 can be formed with a second wire outlet hole 144, and a motor connecting wire 19 of the second driving motor 14 passes through the second wire outlet hole 144. The motor connecting wire 19 of the second driving motor 14 can extend out of the second driving motor 14 from one side of the second end wall 145. By respectively leading out the motor connecting wire 19 of the first driving motor 13 and the motor connecting wire 19 of the second driving motor 14 from the opposite end walls, the motor connecting wires 19 of different driving motors are relatively independent, reducing the mutual interference between the motor connecting wires 19 of different driving motors. The plurality of driving motors can be independently assembled, which is conducive to reducing the assembly difficulty of the driving motors. In addition, this arrangement makes the motor connecting wires 19 more reasonably arranged, and the motor connecting wires 19 are more clear and orderly, which can effectively utilize the internal space of the marine pod propulsion device 1.

[0093] In the above technical solution, by respectively leading out the motor connecting wire 19 of the first driving motor 13 and the motor connecting wire 19 of the second driving motor 14 from the opposite end walls, the assembly difficulty of the driving motors is reduced, and the motor connecting wires 19 are more clear and orderly, which can effectively utilize the internal space of the marine pod propulsion device 1.

[0094] According to some embodiments of the present application, as shown in Figure 3 The end wall of the first driving motor 13 facing the second driving motor 14 and the end wall of the second driving motor 14 facing the first driving motor 13 are spaced apart along the first direction to form a wire routing space 18. The wire routing space 18 and the wire routing channel 111 are adjacent and communicate along the second direction.

[0095] The wiring space 18 is arranged corresponding to the hanger structure 11 along the second direction, and the wiring space 18 and the wiring channel 111 are adjacent and communicated along the second direction. By arranging the wiring space 18 adjacent and communicated with the wiring channel 111, an initial arrangement area is provided for the motor connecting wires 19 of the first driving motor 13 and the second driving motor 14, so that the motor connecting wires 19 have reasonable space for placement near the corresponding driving motor, so that the motor connecting wires 19 can be better protected on the whole path, reducing the risk of the motor connecting wires 19 being directly exposed to the external environment, reducing the risk of the motor connecting wires 19 being mechanically damaged (such as friction, extrusion) and being invaded by dust, moisture, corrosive substances and the like, prolonging the service life of the motor connecting wires 19, and being beneficial to improve the stability and reliability of the marine pod propulsion device 1. Moreover, the wiring space 18 makes the wiring arrangement of the motor connecting wires 19 simple and clear, and technicians can more easily plan the direction of the motor connecting wires 19 when installing the motor connecting wires 19, which is beneficial to improve the efficiency and accuracy of wiring and improve the installation efficiency of multiple driving motors.

[0096] In the above technical solution, by arranging the wiring space 18 adjacent and communicated with the wiring channel 111, the space utilization inside the marine pod propulsion device 1 can be improved, the motor connecting wires 19 of the multiple driving motors can be protected, the service life of the motor connecting wires 19 is prolonged, which is beneficial to improve the stability and reliability of the marine pod propulsion device 1, and the wiring arrangement of the motor connecting wires 19 is simple and clear, which is beneficial to improve the efficiency and accuracy of wiring and improve the installation efficiency of multiple driving motors.

[0097] According to some embodiments of the present application, the rotation directions of any two adjacent propellers 12 are opposite.

[0098] The rotation of the propeller 12 causes the surrounding air or water flow to form a vortex, resulting in energy loss. By setting the rotation direction of any two adjacent propellers 12 opposite, the propeller 12 close to the first driving motor 13 in any two adjacent propellers 12 can absorb the wake energy of the propeller 12 away from the first driving motor 13, that is, the rotation direction of the first propeller 121 and the second propeller 122 is opposite in the present application, the first propeller 121 absorbs the wake energy of the second propeller 122, which is beneficial to improve the propulsion efficiency and improve the stability and maneuverability of the ship sailing. And the rotation direction of any two adjacent propellers 12 opposite can effectively balance the torque, reduce the vibration of the ship body, thereby reducing the noise level, and is beneficial to improve the comfort of the ship.

[0099] In the above technical solution, by setting the rotation direction of any two adjacent propellers 12 opposite, the propulsion efficiency can be improved, which is beneficial to improve the stability and maneuverability of the ship sailing, can reduce the vibration of the ship body, and is beneficial to improve the comfort of the ship.

[0100] According to some embodiments of the present application, as shown in Figure 2 , Figure 6 and Figure 7 The boat pod propulsion device 1 can further include a rotating part 40, the rotating part 40 is connected with the propulsion part 10, and the rotating part 40 is used to drive the propulsion part 10 to rotate around the second direction perpendicular to the first direction.

[0101] The rotating part 40 can be connected with the propulsion part 10, and the rotating part 40 can be connected with the hanging connection structure 11. The rotating part 40 can be arranged along the second direction and the propulsion part 10 in sequence, and the rotating part 40 can drive the propulsion part 10 to rotate around the second direction. According to the actual needs of the ship, the structure of the rotating part 40 can be different, and according to the structure of the rotating part 40, the rotating part 40 can drive the propulsion part 10 to rotate different angles. The rotating part 40 can drive the propulsion part 10 to rotate 360° around the second direction, thereby realizing the 360° full-rotation rudder effect of the ship, or the rotating part 40 can also drive the propulsion part 10 to rotate a limited angle around the second direction, thereby realizing the rudder turning of the ship at a limited angle.

[0102] As an example, when the rotating part 40 drives the propulsion part 10 to rotate 360°, as shown in Figure 2 and Figure 6As shown, the rotating part 40 can include a slip ring 51, a driving mechanism 52, a reduction box 53, a first rotating bearing 54, a first rotating seal 55 and a first rotating flange 56. The slip ring 51 can be composed of a rotating part and a fixed part. The rotating part can rotate relative to the fixed part. The rotating part can be connected with the motor connecting wire 19 of the propulsion part 10, and the fixed part can be connected with the fixed structure of the marine pod propulsion device 1. The slip ring 51 can transmit power from the fixed part to the rotating part to provide stable power supply for the plurality of driving motors of the marine pod propulsion device 1. The rotating part of the slip ring 51 can rotate around the second direction, and the rotating part of the slip ring 51 can rotate synchronously with the propulsion part 10, thereby reducing the risk of winding of the motor connecting wire 19 and enabling the propulsion part 10 to rotate freely within a range of 360°.

[0103] The slip ring 51 and the first rotating bearing 54 are both mounted on the first rotating flange 56. The slip ring 51 can be located above the first rotating flange 56 along the second direction, and the first rotating bearing 54 can be located below the first rotating flange 56 along the second direction. The axial direction of the first rotating bearing 54 can be parallel to the second direction, and the central axis of the first rotating bearing 54 can be collinear with the central axis of the slip ring 51. The outer ring of the first rotating bearing 54 can be fixedly connected with the first rotating flange 56, and the inner ring of the first rotating bearing 54 can be fixedly connected with the pendant structure 11. When the inner ring of the first rotating bearing 54 rotates relative to the outer ring of the first rotating bearing 54, the pendant structure 11 can rotate relative to the first rotating flange 56. The rotating part 40 is connected with the ship body through the first rotating flange 56. The reduction box 53 can be located on the same side of the first rotating flange 56 as the slip ring 51. The reduction box 53 has a first output shaft 531 which can pass through the first rotating flange 56 along the second direction. The first output shaft 531 can rotate relative to the first rotating flange 56. The first output shaft 531 is formed with an external gear, and the inner ring of the first rotating bearing 54 is formed with an internal gear. The external gear of the first output shaft 531 can engage with the internal gear of the inner ring of the first rotating bearing 54. The driving mechanism 52 can be a motor. The driving mechanism 52 is connected with the reduction box 53 and can drive the reduction box 53 to work. The first output shaft 531 rotates, thereby driving the inner ring of the first rotating bearing 54 to rotate, thereby driving the pendant structure 11 to rotate. The pendant structure 11 drives the propulsion part 10 to rotate. The plurality of motor connecting wires 19 of the propulsion part 10 are connected with the slip ring 51. The rotating part of the slip ring 51 rotates relative to the fixed part, thereby achieving the effect that the rotating part 40 drives the propulsion part 10 to rotate around the second direction by 360°.

[0104] At least part of the first rotary seal 55 can be assembled in the gap between the inner ring of the first rotary bearing 54 and the outer ring of the first rotary bearing 54, and the first rotary seal 55 can be used to seal the gap between the inner ring of the first rotary bearing 54 and the outer ring of the first rotary bearing 54.

[0105] As another example, when the rotary part 40 drives the propulsion part 10 to rotate around the second direction by a limited angle, as shown in FIG. 6, the propulsion part 10 can also be assembled with a rotary part 40 without full rotation function, and the rotary part 40 without full rotation function can be composed of a junction box 61, a horizontal rotary drive device 62, a speed change device 63, a second rotary bearing 64, a second rotary seal 65, and a second rotary flange 66. Figure 7

[0106] The junction box 61 and the second rotary bearing 64 are both mounted on the second rotary flange 66, the junction box 61 can be located above the second rotary flange 66 along the second direction, the second rotary bearing 64 can be located below the second rotary flange 66 along the second direction, the axial direction of the second rotary bearing 64 can be parallel to the second direction, and the central axis of the second rotary bearing 64 can be collinear with the central axis of the junction box 61. The outer ring of the second rotary bearing 64 can be fixedly connected with the second rotary flange 66, and the inner ring of the second rotary bearing 64 can be fixedly connected with the suspension structure 11, so that when the inner ring of the second rotary bearing 64 rotates relative to the outer ring of the second rotary bearing 64, the effect of rotating the suspension structure 11 relative to the second rotary flange 66 can be achieved. The rotary part 40 is connected with the ship body through the second rotary flange 66. The speed change device 63 can be located on the same side of the second rotary flange 66 as the junction box 61, and the speed change device 63 has a second output shaft 631, which can pass through the second rotary flange 66 along the second direction and can rotate relative to the second rotary flange 66. The second output shaft 631 is formed with an external gear, and the inner ring of the second rotary bearing 64 is formed with an internal gear. The external gear of the second output shaft 631 can be engaged with the internal gear of the inner ring of the second rotary bearing 64. The horizontal rotary drive device 62 is connected with the speed change device 63, and the horizontal rotary drive device 62 can drive the speed change device 63 to work, so that the second output shaft 631 of the speed change device 63 rotates, thereby driving the inner ring of the second rotary bearing 64 to rotate, thereby driving the suspension structure 11 to rotate, and the suspension structure 11 drives the propulsion part 10 to rotate together. The motor connection line 19 of the propulsion part 10 is connected with the junction box 61, so that the effect of driving the propulsion part 10 to rotate around the second direction by a limited angle can be achieved.

[0107] ​In the above technical solution, the rotating part 40 can be arranged in the second direction and the propulsion part 10 in sequence, the rotating part 40 can drive the propulsion part 10 to rotate around the second direction, according to the actual needs of the ship, the structure of the rotating part 40 can be different, according to the structure of the rotating part 40, the rotating part 40 can drive the propulsion part 10 to rotate different angles.

[0108] According to some embodiments of the present application, the present application also provides a ship, comprising the marine pod propulsion device 1 of any of the above solutions.

[0109] Among them, the ship can be the equipment of any of the above marine pod propulsion devices 1, using the marine pod propulsion device 1 in the above embodiments can improve the assembly efficiency of the ship, can improve the reliability of the ship.

[0110] According to some embodiments of the present application, the rotating part 40 comprises a slip ring 51, a driving mechanism 52, a reduction box 53, a first rotating bearing 54, a first rotating seal 55 and a first rotating flange 56, the rotating part 40 drives the propulsion part 10 to rotate 360°. The connecting structure 11 of the rotating part 40 and the propulsion part 10 is connected, the propulsion part 10 comprises the connecting structure 11, the first driving motor 13, the second driving motor 14, the first propeller 121 and the second propeller 122, the first driving motor 13 and the first propeller 121 are connected, the second driving motor 14 and the second propeller 122 are connected, the second driving motor 14 is located on the side of the first driving motor 13 away from the first propeller 121 in the first direction, the second propeller 122 is located on the side of the first propeller 121 away from the first driving motor 13 in the first direction. The driving shaft 15 of the second driving motor 14 passes through the driving shaft 15 of the first driving motor 13, the driving shaft 15 of the first driving motor 13 drives the first propeller 121 to rotate, the driving shaft 15 of the second driving motor 14 drives the second propeller 122 to rotate. The thrust bearing 16 of the first driving motor 13 is located on the end wall of the first driving motor 13 facing the second driving motor 14, the thrust bearing 16 of the second driving motor 14 is located on the end wall of the second driving motor 14 facing the first driving motor 13, the thrust bearing 16 of the first driving motor 13 and the thrust bearing 16 of the second driving motor 14 are opposite to the connecting structure 11 in the second direction.

[0111] The first bearing 20 is sleeved on the drive shaft 15 of the first drive motor 13, and the sealing member 30 is used to seal the gap between the drive shaft 15 of the second drive motor 14 and the drive shaft 15 of the first drive motor 13. The end wall of the first drive motor 13 facing the second drive motor 14 and the end wall of the second drive motor 14 facing the first drive motor 13 are spaced apart in the first direction to form a wiring space 18, the wiring space 18 and the wiring channel 111 are adjacent and communicate in the second direction, the motor connecting line 19 of the first drive motor 13 is arranged through the end wall of the first drive motor 13 facing the second drive motor 14, and the motor connecting line 19 of the second drive motor 14 is arranged through the end wall of the second drive motor 14 facing the first drive motor 13.

[0112] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0113] The above is only the preferred embodiment of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A podded propulsion unit for a marine vessel, characterized in that, Comprising: The propulsion part comprises a hanging joint structure, a plurality of propellers and a plurality of drive motors, a plurality of the propellers are arranged in sequence along a first direction, and the rotation axis of each propeller is parallel to the first direction, a plurality of the drive motors are connected with a plurality of the propellers respectively, so that a plurality of the drive motors drive the corresponding propellers to rotate respectively, wherein a plurality of the drive motors are fixedly connected with the hanging joint structure, and a plurality of the drive motors are configured to be independently assembled.

2. A podded propulsion unit according to claim 1, characterised in that, Along a second direction, a plurality of the drive motors are located on the same side of the hanging joint structure, a plurality of the drive motors are arranged in sequence along the first direction, each of the drive motors has a drive shaft and a thrust bearing, the drive shaft is fixedly provided with the corresponding propeller, the drive shaft of each of the drive motors extends along the first direction, the thrust bearing is sleeved on the corresponding drive shaft, and the thrust bearing of at least one of the drive motors is opposite to the hanging joint structure along the second direction, and the first direction and the second direction are perpendicular.

3. A podded propulsion unit according to claim 2, characterised in that, A plurality of the drive motors include a first drive motor and a second drive motor, along the first direction, the thrust bearing of the first drive motor is located on the end wall of the first drive motor facing the second drive motor, and the thrust bearing of the second drive motor is located on the end wall of the second drive motor facing the first drive motor.

4. A podded propulsion unit according to claim 3, characterised in that, Along the first direction, a plurality of the propellers are located on the side of the first drive motor away from the second drive motor, and the drive shaft of the second drive motor penetrates the drive shaft of the first drive motor and is rotatable relative to the drive shaft of the first drive motor.

5. A podded propulsive unit according to claim 4, characterised in that, Further comprising: A first bearing, the drive shaft of the first drive motor is formed with a through hole extending along the first direction, the drive shaft of the second drive motor penetrates the through hole, and the first bearing is assembled in the through hole and sleeved on the drive shaft of the second drive motor.

6. A podded propulsive unit according to claim 5, characterised in that, The through hole is formed with a limiting end face facing the first bearing, along the first direction, the limiting end face is located between the first bearing and the second drive motor, and the limiting end face abuts against the first bearing to limit the movement of the first bearing to the second drive motor.

7. A podded propulsor for a marine vessel as claimed in claim 5, characterised in that, Further comprising: A sealing element, at least part of the sealing element is assembled in the through hole and sleeved on the drive shaft of the second drive motor, along the first direction, the sealing element is located on the side of the first bearing away from the second drive motor, and the sealing element is used for sealing the gap between the drive shaft of the second drive motor and the drive shaft of the first drive motor.

8. A podded propulsor according to claim 1, characterised in that, The hanging joint structure is formed with a wiring channel, along a second direction, a plurality of the drive motors are located on the same side of the hanging joint structure, each of the drive motors has a motor connecting wire, the motor connecting wire of each of the drive motors penetrates the wiring channel, and the first direction and the second direction are perpendicular.

9. A podded propulsor according to claim 8, characterised in that, The plurality of driving motors comprises a first driving motor and a second driving motor, the first driving motor and the second driving motor are arranged in sequence along the first direction, the motor connecting line of the first driving motor is arranged through an end wall of the first driving motor facing the second driving motor, and the motor connecting line of the second driving motor is arranged through an end wall of the second driving motor facing the first driving motor.

10. A podded propulsive unit according to claim 9, characterised in that, The end wall of the first driving motor facing the second driving motor and the end wall of the second driving motor facing the first driving motor are spaced apart along the first direction to form a wiring space, and the wiring space and the wiring channel are adjacent and communicated along the second direction.

11. A podded propulsor according to claim 1, characterised in that, The rotation directions of any two adjacent propellers are opposite.

12. A podded propulsor for a marine vessel according to any one of claims 1-11, characterized in that, Further comprising: a rotating part connected with the propelling part, the rotating part being used to drive the propelling part to rotate around a second direction perpendicular to the first direction.

13. A vessel characterised in that, The propeller pod propelling device for a ship comprises the propeller pod propelling device according to any one of claims 1-12.

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