CN116157322A - Wind propulsion system and ship with same - Google Patents

Abstract

The invention relates to a wind propulsion system and a ship with the same, wherein the wind propulsion system comprises: a stator vertically disposed on the deck; a rotor surrounding the outside of the stator and configured in a cylindrical shape; a driving unit for transmitting rotational power to the rotor through a disk connected to the rotor; and a lower bearing part provided at a lower portion of the rotor to restrain lateral movement of the rotor, the lower bearing part including: and a joint part formed by an aggregate of bearing units, at least a part of which is arranged on the inner side of the stator along the edge of a window arranged at a predetermined interval from the position where the bearing units are arranged, and supports a guide bearing for guiding the rotation of the rotor on the stator.

Description

Wind propulsion system and ship with same

Technical Field

The invention relates to a wind propulsion system and a ship with the same.

Background

Marine vessels typically use fossil fuels to obtain propulsion. It is known that a ship is equipped with a high-power engine for driving a booster or the like, and that a large ship consumes several hundred tons of fuel during long-distance voyage. The use of these vessels requires a great deal of expense and the emission of pollutants from fuel consumption is also a very serious problem.

In order to solve these problems, it is preferable to diversify the power source of the ship. For example, an electric propulsion ship technology that obtains a part of propulsion from an electric motor has been developed and applied, and in addition, a technology that obtains electric power by utilizing various environmental conditions that a ship experiences at sea has been developed.

In addition, as a natural energy source that does not generate exhaust gas at all, the use of sunlight, wind power, and the like has also been attracting attention. In particular, in the case of wind power, the wind power can be simply converted into the propulsive force by providing a device such as a Sail (Sail) on the deck, and thus there are advantages of simple structure and low maintenance cost.

In addition, in recent years, unlike a generally known sail, a rotor device (e.g., a magnus rotor) capable of directly rotating by power and converting wind power into a propulsion force in a desired direction is mounted on a ship. Such a rotor apparatus is composed of a stator (stator) fixed on a deck, and a rotor (rotor) arranged in a cylindrical form surrounding the surface and top surface of the stator and adjusting the rotational speed or direction.

Unlike sails, such rotor devices are capable of processing wind power into the required propulsive force, and therefore much research and development has been recently conducted. However, the rotor equipment is in the form of a large column having a diameter of several meters and a height of several tens of meters, and thus there are many problems to be solved/improved in terms of installation in a deck, durability according to the movement of a ship, disturbance of a front view, control, and the like.

Disclosure of Invention

Technical problem to be solved

The present invention has been made to solve the above-described problems of the prior art, and an object of the present invention is to provide a wind propulsion system and a ship having the same, which can improve structural performance of a rotor, facilitate manufacturing, ensure structural stability of a driving unit that drives the rotor, ensure structural stability of a lower bearing unit provided between the rotor and a stator, facilitate maintenance, and ensure structural stability due to weight reduction of an end plate.

Technical proposal for solving the problems

The wind propulsion system according to an aspect of the present invention may include: a stator vertically disposed on the deck; a rotor surrounding the outside of the stator and configured in a cylindrical shape; a driving unit for transmitting rotational power to the rotor through a disk connected to the rotor; and a lower bearing part provided at a lower portion of the rotor to restrain lateral movement of the rotor, the lower bearing part may include: and a joint part formed by an aggregate of bearing units, at least a part of which is arranged on the inner side of the stator along the edge of a window arranged at a predetermined interval from the position where the bearing units are arranged, and supports a guide bearing for guiding the rotation of the rotor on the stator.

Specifically, the joint may include: a first engagement plate formed of a pair and coupled to both ends of a bearing shaft of the guide bearing; and a second engagement plate provided along an edge of the window inside the stator, and coupled with the first engagement plate.

Specifically, the first engagement plate may be horizontally extended to one side of the guide bearing in a state of being coupled to the bearing shaft, and may have a shape of being vertically bent from an extended end portion, and a plurality of first bolt holes for being coupled to the second engagement plate bolts may be provided, and the second engagement plate may have a shape of being protruded at least by a radius of the guide bearing or less, and a plurality of second bolt holes corresponding to the first bolt holes may be provided.

Specifically, the joint may include: and a joint box provided along an edge of the window inside the stator, for fixing the guide bearing in a state that a part of the guide bearing protrudes to the outside.

Specifically, the driving section may include: a gear box which is provided with a driving shaft rotated by a motor, a driving gear arranged on the driving shaft, a driven gear meshed with the driving gear for rotation, and a first driven shaft combined with the driven gear and supporting the rotation of the driven gear, and is arranged on the inner side of the stator; and a bearing housing connected to the first driven shaft via a coupling member, and holding a second driven shaft that transmits a rotational force to the disk.

Specifically, the bearing housing may be disposed inside the top surface of the stator, or may be disposed outside the top surface of the stator.

Specifically, the upper portion of the driving shaft may be rotatably coupled to the top surface of the gear case using a first bearing, the lower portion of the driving shaft may be rotatably coupled to the bottom surface of the gear case using a second bearing, and the first bearing and the second bearing may be bearings that prevent a lateral force of the driving shaft or lateral vibration of the driving shaft.

Specifically, the upper portion of the first driven shaft may be rotatably coupled to the top surface of the gear case by a third bearing, the lower portion of the first driven shaft may be rotatably coupled to the bottom surface of the gear case by a fourth bearing, and the third bearing and the fourth bearing may be bearings for preventing a lateral force of the first driven shaft.

Specifically, the second driven shaft may be rotatably coupled to the top surface of the stator using a fifth bearing and a sixth bearing that are disposed in series, the fifth bearing may be a bearing that prevents an axial force of the second driven shaft, and the sixth bearing may be a bearing that prevents a lateral force of the second driven shaft.

Specifically, the rotor may include: a lower rotor provided at an upper end with a first edge panel extending inward by a predetermined length and having a ring shape of a space accommodating the disk; an upper rotor provided at a lower end with a second edge panel extending inward by a predetermined length and having a ring shape of a space accommodating the disk; and a coupling member coupling the lower rotor, the upper rotor, and the disk.

Specifically, the coupling member may include: a first clamping plate clamping the bottom surface of the first edge panel and the bottom surface of the disk; a second clamping plate clamping the top surface of the first edge panel and the top surface of the disk; a first bolt member fixing the first clamping plate, the second clamping plate, and the disk; and a second bolt member that fixes the first and second edge panels.

Specifically, the coupling member may further include: a first adhesive member disposed between the first edge panel and the second clamping plate; and a second adhesive member disposed between the second edge panel and the second clamping plate.

Specifically, the foundation structure on land may be mounted on the deck by a lifting device, the disc and the driving unit may be provided on land above the stator, the lower rotor may be lifted by the lifting device and accommodated in the lower rotor by the stator, the lower rotor and the disc may be coupled by the coupling member, the lower rotor accommodating the stator may be mounted on the foundation structure by the lifting device, the upper rotor on land may be aligned with an upper portion of the lower rotor mounted on the foundation structure by the lifting device, and the lower rotor and the upper rotor may be coupled by the coupling member.

Another aspect of the present invention may include the above-described wind propulsion system.

Technical effects

The wind propulsion system of the present invention can improve the structural performance of the rotor and facilitate manufacturing, can ensure the structural stability of the driving part for driving the rotor, can ensure the structural stability of the lower bearing part arranged between the rotor and the stator, and can ensure the structural stability due to the light weight of the end plate.

Drawings

Fig. 1 is a diagram showing a ship having a wind propulsion system according to an embodiment of the present invention.

Fig. 2 is a diagram for explaining a wind propulsion system according to an embodiment of the present invention.

Fig. 3 is a view for explaining a first embodiment of the rotor shown in fig. 2.

Fig. 4 is a view for explaining a unit panel constituting the rotor of the first embodiment.

Fig. 5 is a view for explaining a second embodiment of the rotor shown in fig. 2.

Fig. 6 is a view for explaining a coupling member that connects a lower rotor and an upper rotor constituting a rotor of the second embodiment.

Fig. 7 (a) to (d) are diagrams for explaining a mounting process of the rotor of the second embodiment.

Fig. 8 is a view for explaining a first embodiment of the end plate shown in fig. 2.

Fig. 9 is a view for explaining a first embodiment of the driving section shown in fig. 2.

Fig. 10 is a diagram for explaining a second embodiment of the driving section shown in fig. 2.

Fig. 11 is a diagram for explaining a third embodiment of the driving section shown in fig. 2.

Fig. 12 is a partial view for explaining a wind propulsion system of the first embodiment of the lower bearing portion shown in fig. 2.

Fig. 13 is a view taken along line A-A' of fig. 12.

Fig. 14 is a view taken along line B-B' of fig. 13.

Fig. 15 is a partial view of a wind propulsion system for illustrating a second embodiment of the lower bearing portion shown in fig. 2.

Fig. 16 is a view taken along line A-A' of fig. 15.

Fig. 17 is a view taken along line B-B' of fig. 16.

Fig. 18 is a partial view of a wind propulsion system for illustrating a third embodiment of the lower bearing portion shown in fig. 2.

Fig. 19 is a view for explaining a bearing unit constituting a lower bearing portion of the third embodiment.

Fig. 20 (a) to (c) are diagrams showing a state in which the bearing unit of fig. 19 is provided to the stator.

Fig. 21 is a partial view of a wind propulsion system for explaining a fourth embodiment of the lower bearing portion shown in fig. 2.

Fig. 22 is a view for explaining a bearing unit constituting a lower bearing portion of the fourth embodiment.

Fig. 23 is a partial view for explaining a wind propulsion system of a fifth embodiment of the lower bearing portion shown in fig. 2.

Fig. 24 is a view taken along line A-A' of fig. 23.

Fig. 25 is a view taken along line B-B' of fig. 24.

Fig. 26 is a partial view for explaining a wind propulsion system of a sixth embodiment of the lower bearing portion shown in fig. 2.

Fig. 27 is a view taken along line A-A' of fig. 26.

Detailed Description

The objects, specific advantages and novel features of the invention will become more apparent from the following detailed description of preferred embodiments and examples when considered in conjunction with the drawings. In the present specification, when reference is made to the constituent elements of the respective drawings, it should be noted that the same reference numerals are given as much as possible to the same constituent elements even though they are shown on different drawings. In addition, in describing the present invention, if it is determined that a detailed description of related known techniques may unnecessarily obscure the gist of the present invention, a detailed description thereof will be omitted.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 is a view showing a ship S having a wind propulsion system 1 according to an embodiment of the present invention, and fig. 2 is a view for explaining the wind propulsion system 1 according to an embodiment of the present invention.

As shown in fig. 1 and 2, a wind propulsion system 1 according to an embodiment of the present invention may be provided with at least one or more on a deck of a ship S, directly rotate using power and convert wind power into propulsion in a desired direction, and may include: the base structure 10, the stator 20, the rotor 30, the end plate 40, the disk 50, the driving portion 60, and the lower bearing portion 70.

The base structure 10 may be fixedly disposed on a deck, and may be provided at an upper portion thereof with a stator 20.

The stator 20 may be vertically disposed on the base structure 10 fixed on the deck, and may constitute the shaft of the rotor 30.

The stator 20 may be a hollow cylindrical structure, and the driving unit 60 may be mounted on the upper portion thereof.

The rotor 30 is a structure disposed in a cylindrical shape surrounding the outside of the stator 20, and can rotate 360 degrees by applying power to the driven part 60 about the stator 20 provided on and fixed to the deck of the ship S. At this time, wind can be converted into propulsive force of the ship S due to hydrodynamic interference between wind around the ship S and the cylindrical rotor 30.

That is, the rotor 30 may be rotated by the disc 50 receiving power of the driving part 60. At this time, the rotor 30 may rotate with reference to the stator 20, which is a central axis in the vertical direction, and generate an increased pressure on one side thereof, a decreased pressure/suction on the other side thereof, and positive and negative pressures on one side and the opposite side of the rotor 30, respectively, thereby generating propulsive force, which is force for moving the ship 100.

In addition, the direction in which the positive pressure and the negative pressure are formed may be different according to the direction of the rotor 30, and thus, the sailing direction of the ship S may also be controlled by switching the direction of the rotor 30 to rotate in a clockwise or counterclockwise direction.

Of course, the ship of the present embodiment is not limited to the propulsion force generated by the driving of the rotor 30, and it is obvious that the ship of the present embodiment may be combined with the conventional embodiment. For example, when the ship S is sailing mainly with a main engine (not shown) and a rudder, the rotor 30 may serve as an auxiliary function. In contrast, since the operation of the rotor 30 may be mainly used and the navigation of the ship S may be assisted by the main engine and the rudder, the driving of the rotor 30 may be performed as needed in various cases.

The rotor 30 described above may be rotatably coupled to a lower bearing part 70 provided at a lower portion and coupled to a disc 50 receiving power of a driving part 60 provided at an upper portion of the stator 20 and providing a rotational force.

The upper end portion of such a rotor 30 may be opened, and an end plate 40 may be provided at an opened portion thereof.

The disc 50 may have a shape corresponding to an inner circumferential surface of the rotor 30, for example, a circular plate shape, and an outer circumferential surface thereof may be fixedly coupled to the inner circumferential surface of the rotor 30. Such a disc 50 can receive power of the driving unit 60 together with the driving unit 60 and impart a rotational force to the rotor 30.

The driving part 60 may be provided at an upper portion of the stator 20 to be connected with the disk 50. Such a driving unit 60 can generate power capable of rotating the rotor 30 and transmit the rotational force to the rotor 30 through the disk 50.

The lower bearing portion 70 may be provided at a lower portion of the rotor 30. The lower bearing portion 70 may be configured to be capable of suppressing lateral movement of the rotor 30 when it is rotated by the power of the driving portion 60.

As described above, the wind propulsion system 1 of the present embodiment includes: the respective configurations of the stator 20, the rotor 30, the end plate 40, the disk 50, the driving unit 60, and the lower bearing unit 70 will be specifically described below with reference to fig. 3 to 27.

The rotor 30 shown in fig. 2 described above is a hollow cylindrical structure, which can be implemented in various embodiments, and hereinafter, the rotor 30a of the first embodiment will be described with reference to fig. 3 to 4, and the rotor 30a of the second embodiment will be described with reference to fig. 5 to 7.

Fig. 3 is a view for explaining a first embodiment of the rotor 30 shown in fig. 2, and fig. 4 is a view for explaining a unit panel 31a constituting the rotor 30a of the first embodiment.

As shown in fig. 3 to 4, the rotor 30a of the first embodiment may be constituted by a combination of a plurality of unit panels 31 a.

The unit panel 31a may be formed to have a predetermined width, length, thickness by stretch-forming using glass fiber, carbon fiber, or various composite materials.

The unit panel 31a may be configured to be capable of interference fit with other adjacent unit panels 31 a.

As shown in fig. 4, the unit panel 31a may be constituted by a curved panel 31a1 having a curved shape in the width direction and extending in the length direction, a female connector 31a2 provided along one side edge of the curved panel 31a1, and a male connector 31a3 provided along the other side edge of the curved panel 31a 1. The thickness of each of the curved plate 31a1, the female connector 31a2, and the male connector 31a3 constituting the unit panel 31a may be the same or similar.

The curved plate 31a1 may have a curved surface corresponding to the radius of the rotor 30 a.

The female connector 31a2 and the male connector 31a3 may have various structures capable of interference fit with the adjacent unit panels 31 a.

As an example, the female connector 31a2 may be composed of a first plate 31a21 bent and extended from one side end portion of the curved plate 31a1 toward the inner side of the rotor 30a, a second plate 31a22 bent and extended from the extended end portion of the first plate 31a21 toward the outer side of the curved plate 31a1, a third plate 31a23 bent and extended from the extended end portion of the second plate 31a22 toward the outer side of the rotor 30a, and a fourth plate 31a24 bent and extended from the extended end portion of the third plate 31a23 toward the inner side of the curved plate 31a1, and a "shaped insertion space 31a4 corresponding to the shape of the male connector 31a3 may be formed from the first plate to the fourth plate 31a 24. At this time, the male connector 31a3 may be constituted by a fifth plate 31a31 bent and extended from the other side end portion of the curved plate 31a1 toward the inner side of the rotor 30a, and a sixth plate 31a32 bent and extended from the extended end portion of the fifth plate 31a31 toward the inner side of the curved plate 31a1 so as to correspond to the "" -shaped insertion space 31a4 of the female connector 31a 2.

As a result, the rotor 30a of the present embodiment can be formed in a hollow cylindrical shape by the interference fit method of the unit panel 31a configured as described above, and the joining process can be simplified as compared with the adhesive joining method or the bolt joining method.

In addition, the rotor 30a of the present embodiment is manufactured by stretch forming the unit panel 31a using glass fiber, carbon fiber, or various composite materials, whereby not only manufacturing costs can be saved by simplification of manufacturing processes, but also weight reduction can be achieved.

In addition, the interference fit portions of the female connector 31a2 and the male connector 31a3 of the rotor 30a of the present embodiment are thicker than the curved plate 31a1, so that it is possible to naturally function as a reinforcement in the longitudinal direction, whereby it is possible to be more economical than the conventional sandwiching manufacturing method in which resin or the like is injected inside for reinforcement.

Fig. 5 is a diagram for explaining a second embodiment of the rotor 30 shown in fig. 2, fig. 6 is a diagram for explaining a coupling member 33b that couples the lower rotor 31b and the upper rotor 32b that constitute the rotor 30b of the second embodiment, and fig. 7 (a) to (d) are diagrams for explaining a mounting process of the rotor 30b of the second embodiment.

As shown in fig. 5 to 7, the rotor 30b of the second embodiment may be constituted by a two-stage assembly structure in which a lower rotor 31b and an upper rotor 32b are assembled by a coupling member 33 b.

The lower rotor 31b and the upper rotor 32b may be hollow cylindrical structures, and may be formed of the same material and shape.

The lower rotor 31b may be sized to accommodate the stator 20, the disk 50, the drive portion 60, and the lower bearing portion 70.

A first edge panel 31b1 of a ring shape extending inward by a predetermined length and having a space accommodating the disk 50 may be provided at an upper end of the lower rotor 31b, and a second edge panel 32b1 of a ring shape extending inward by a predetermined length and having a space accommodating the disk 50 may be provided at a lower end of the upper rotor 32 b.

The coupling member 33b may couple the lower rotor 31b to the disk 50 in a state in which the stator 20 provided with the disk 50 and the driving portion 60 at the upper portion is accommodated in the lower rotor 31b and the first edge panel 31b1 is aligned with the disk 50, and couple the first edge panel 31b1 of the lower rotor 31b to the second edge panel 32b1 of the upper rotor 32b in a state in which the lower rotor 31b is coupled with the disk 50.

Specifically, the coupling member 33b may include: the first clamping plate 33b1 clamps the bottom surface of the first edge panel 31b1 and the bottom surface of the disk 50; a second clamping plate 33b2 clamping the top surface of the first edge panel 31b1 and the top surface of the disk 50; a first bolt member 33b3 that fixes the first clamp plate 33b1, the second clamp plate 33b2, and the disk 50; and a second bolt member 33b4 that fixes the second edge panel 32b1 of the upper rotor 32b to the first edge panel 31b1 of the lower rotor 31 b.

In the above, the first bolt member 33b3 may couple the lower rotor 31b to the disk 50 by fixing the first clamp plate 33b1, the disk 50, and the second clamp plate 33b2, and the second bolt member 33b4 may couple the lower rotor 31b to the upper rotor 32b by fixing the first clamp plate 33b1, the first edge panel 31b1, the second clamp plate 33b2, and the second edge panel 32b 1.

In addition, the coupling member 33b may further include: a first adhesive member 33b5 disposed between the first edge panel 31b1 and the second sandwiching plate 33b2 of the lower rotor 31 b; and a second adhesive member 33b6 disposed between the second edge panel 32b1 of the upper rotor 32b and the second clamping plate 33b 2. Here, the first adhesive member 33b5 and the second adhesive member 33b6 may be various adhesives or adhesive films of a coating type or a bonding type.

The mounting process of the lower rotor 31b and the upper rotor 32b assembled by the coupling member 33b as described above will be described with reference to fig. 7 (a) to (d).

First, as shown in fig. 7 (a), the ground foundation 10 is mounted on the deck of the ship S by the lifting device L. The lifting device L may here be a tower crane, a gantry crane or any suitable lifting means known to a person skilled in the art.

As shown in fig. 7 (b), the disk 50 and the driving part 60 are installed on the land to the upper part of the stator 20, the lower rotor 31b is lifted by the lifting means L and the stator 20 is accommodated therein, and the lower rotor 31b is coupled with the disk 50 by the coupling member 33 b.

As shown in fig. 7 (c), the lower rotor 31b accommodating the stator 20 is mounted on the foundation structure 10 fixedly installed on the deck by the lifting device L.

As shown in fig. 7 (d), the upper rotor 32b on land is aligned with the upper part of the lower rotor 31b mounted on the base structure 10 by the lifting device L, and the lower rotor 31b is coupled with the upper rotor 32b by the coupling member 33 b.

Thus, the rotor 30b of the present embodiment is constituted by a two-stage assembly structure in which the lower rotor 31b and the upper rotor 32b are assembled by the coupling member 33b, so that not only can the assembly process be simplified by realizing a two-stage connection structure, but also the weight and height requirements of the crane can be improved.

The end plate 40 shown in fig. 2 described above is provided at the upper end portion of the opening of the rotor 30, which can be implemented as various embodiments, and hereinafter, the end plate 40a of the first embodiment will be described with reference to fig. 8.

Fig. 8 is a view for explaining a first embodiment of the end plate 40 shown in fig. 2.

As shown in fig. 8, the end plate 40a of the first embodiment may be constituted by a circular plate 41a and reinforcing ribs 42a, and may be formed of Glass Fiber Reinforced Plastic (GFRP) or Carbon Fiber Reinforced Plastic (CFRP).

The circular plate 41a may be divided into a central region 43a and a peripheral region 44a. The central region 43a may be a region corresponding to an upper end portion of the opening of the rotor 30, and the peripheral region 44a may be a region extending to the outside of the rotor 30, but is not limited thereto.

The central region 43a and the peripheral region 44a of the circular plate 41a may be different. For example, the central region 43a of the circular plate 41a may be 10t radial GFRP-2AXIS and the peripheral region 44a of the circular plate 41a may be 30t radial GFRP-UD.

The reinforcing ribs 42a are provided to reinforce the central region 43a of the circular plate 41a, and the plurality of reinforcing ribs 42a may be formed so as to extend radially from the center of the circular plate 41a to the edge of the central region 43a, and may be 10t in the longitudinal direction GFRP-UD.

In the above, the fiber direction and thickness values of the circular plate 41a and the reinforcing ribs 42a are only examples, and it is apparent that various lamination patterns and thicknesses can be applied.

Thus, the end plate 40a of the present embodiment is made of Glass Fiber Reinforced Plastic (GFRP) or Carbon Fiber Reinforced Plastic (CFRP), so that the structural performance of the wind propulsion system 1 that is reduced in weight by the end plate 40a can be improved.

The driving unit 60 shown in fig. 2 is provided at the upper portion of the stator 20 and generates power capable of rotating the rotor 30, and may be implemented in various embodiments, and hereinafter, the driving unit 60a of the first embodiment will be described with reference to fig. 9, the driving unit 60b of the second embodiment will be described with reference to fig. 10, and the driving unit 60c of the third embodiment will be described with reference to fig. 11.

Fig. 9 is a diagram for explaining a first embodiment of the driving section 60 shown in fig. 2.

As shown in fig. 9, the driving section 60a of the first embodiment may include: motor 61a, gear box 62a, drive shaft 63a, drive gear 64a, driven gear 65a, driven shaft 66a, and bearing housing 67a.

The motor 61a may generate driving force and transmit to the gear case 62a, and may be disposed inside the stator 20.

The gear case 62a may be built-in with various gears coupled with the motor 61a and used to transmit driving force required to rotate the driving shaft 63a, and may be disposed inside the stator 20. Gearbox 62a may be a speed reducer.

A driving shaft 63a coupled to the motor 61a and rotated by the motor 61a, a driving gear 64a provided to the driving shaft 63a, a driven gear 65a rotated in mesh with the driving gear 64a, and a driven shaft 66a coupled to the driven gear 65a and supporting the rotation of the driven gear 65a may be provided in the gear box 62a of the present embodiment.

The driving gear 64a and the driven gear 65a may be reduction gears having a reduction ratio of 6:1, and obviously, not limited thereto, reduction gears having various reduction ratios may be applied.

The driven shaft 66a may be constituted by a first driven shaft 66a1 and a second driven shaft 66a 2.

In this case, the first driven shaft 66a1 may be disposed inside the gear case 62a, and may be configured such that a lower portion thereof is rotatably coupled to a bottom surface of the gear case 62a, and an upper portion thereof protrudes to the outside through a top surface of the gear case 62a and is coupled to the second driven shaft 66a 2.

The second driven shaft 66a2 may be disposed outside the gear case 62a, and may be configured to be coupled at a lower portion thereof to an upper portion of the first driven shaft 66a1 by means of a coupling member 68a, and to be coupled at an upper portion thereof to the disc 50 through the top surface of the stator 20. The second driven shaft 66a2 may be connected with the first driven shaft 66a1 and transmit a rotational force to the disk 50.

The driving shaft 63a, the first driven shaft 66a1, and the second driven shaft 66a2 can be rotated by various bearings.

Specifically, the upper portion of the drive shaft 63a may be rotatably coupled to the top surface of the gear case 62a by the first bearing B1, and the lower portion may be rotatably coupled to the bottom surface of the gear case 62a by the second bearing B2.

In the present embodiment, the drive shaft 63a is a shaft rotated by the driving force of the motor 61a, which is not a shaft to which a large multi-axial force (axial force) is applied, and therefore, in this case, the first bearing B1, the second bearing B2 may employ a bearing capable of preventing the lateral force (lateral force) of the drive shaft 63a or the lateral vibration of the drive shaft 63a, for example, an automatic aligning bearing.

The first driven shaft 66a1 may be rotatably coupled to the top surface of the gear case 62a at an upper portion thereof by a third bearing B3, and may be rotatably coupled to the bottom surface of the gear case 62a at a lower portion thereof by a fourth bearing B4.

In the present embodiment, the first driven shaft 66a1 does not directly receive the driving force from the motor 61a or directly transmit the driving force to the disk 50, which is not a shaft to which a large multi-shaft force (axial force) is applied, and therefore, in this case, the third bearing B3, the fourth bearing B4 may employ a bearing capable of preventing a lateral force (lateral force) of the first driven shaft 66a1, for example, a self-aligning bearing.

The second driven shaft 66a2 may be rotatably coupled to the top surface of the stator 20 using a fifth bearing B5 and a sixth bearing B6 that are arranged in series.

In the present embodiment, the second driven shaft 66a2 is a shaft that directly transmits the driving force to the disc 50, which is a shaft to which a large multi-axial force (axial force) and a transverse force (transverse force) are applied, and therefore, in this case, the fifth bearing B5 may apply a bearing capable of preventing the axial force of the second driven shaft 66a2, for example, a thrust bearing (thrust bearing), and the sixth bearing B6 may apply a bearing capable of preventing the transverse force (transverse force) of the second driven shaft 66a2, for example, a self-aligning bearing such as a Spherical Roller Bearing (SRB).

As described above, the second driven shaft 66a2 is applied with a large amount of axial force and lateral force, and therefore it is difficult to firmly couple the fifth bearing B5 and the sixth bearing B6, which are arranged in series, to the stator 20 so as to be able to withstand the axial force and lateral force.

Thus, in the present embodiment, as a means for sandwiching the second driven shaft 66a2, the bearing housing 67a may be fixedly provided inside the top surface of the stator 20. The bearing housing 67a may be penetrated by the second driven shaft 66a2, and may accommodate the fifth bearing B5, the sixth bearing B6. By fixedly disposing the bearing housing 67a inside the top surface of the stator 20, the second driven shaft 66a2 can receive the axial force and the lateral force with the bearing housing 67 a.

Fig. 10 is a diagram for explaining a second embodiment of the driving section 60 shown in fig. 2.

As shown in fig. 10, the driving section 60b of the second embodiment may include: the motor 61a, the gear case 62a, the driving shaft 63a, the driving gear 64a, the driven gear 65a, the driven shaft 66a constituted by the first driven shaft 66a1 and the second driven shaft 66a2, the bearing housing 67b, and the coupling member 68a.

The mounting position of the bearing housing 67b of the driving portion 60b of the second embodiment is different from that of the driving portion 60a of the first embodiment described above.

That is, the bearing housing 67b of the present embodiment is disposed outside the top surface of the stator 20, the bearing housing 67a of the first embodiment described above is disposed inside the top surface of the stator 20, and the remaining structural elements are structurally identical.

The remaining structural elements are identical in structure to those of the first embodiment, and thus the same reference numerals are used, and accordingly, in order to avoid repetitive description, description of the same structures is omitted here.

Fig. 11 is a diagram for explaining a third embodiment of the driving section 60 shown in fig. 2.

As shown in fig. 11, the driving section 60c of the third embodiment may include: motor 61c, gear box 62c, drive shaft 63c, drive gear 64c, driven gear 65c, and driven shaft 66c.

The motor 61c may generate driving force and transmit to the gear case 62c, and may be disposed inside the top surface of the stator 20.

The gear case 62c may be built-in with various gears coupled with the motor 61c for transmitting driving force required to rotate the driving shaft 63c, and may be disposed outside the top surface of the stator 20. Gearbox 62c may be a speed reducer.

A driving shaft 63c coupled to the motor 61c and rotated by the motor 61c, a driving gear 64c provided on the driving shaft 63c, a driven gear 65c rotated in mesh with the driving gear 64c, and a driven shaft 66c coupled to the driven gear 65c to support the rotation of the driven gear 65c and transmit the rotation force to the disk 50 may be provided in the gear box 62c of the present embodiment.

The driving gear 64c and the driven gear 65c may be reduction gears having a reduction ratio of 6:1, and obviously, not limited thereto, reduction gears having various reduction ratios may be applied.

The driving shaft 63c and the driven shaft 66c can be rotated by various bearings.

Specifically, the upper portion of the drive shaft 63c may be rotatably coupled to the top surface of the gear case 62c by the seventh bearing B7, and the lower portion may be rotatably coupled to the bottom surface of the gear case 62c by the eighth bearing B8.

In the present embodiment, the drive shaft 63c is a shaft rotated by the driving force of the motor 61c, which is not a shaft to which a large multi-axial force (axial force) is applied, and therefore, in this case, the seventh bearing B7, the eighth bearing B8 may employ a bearing capable of preventing the lateral force (lateral force) of the drive shaft 63c or the lateral vibration of the drive shaft 63c, for example, a self-aligning bearing.

The driven shaft 66c may be rotatably coupled to the top surface of the gear case 62c at an upper portion thereof by a ninth bearing B9, and rotatably coupled to the bottom surface of the gear case 62c at a lower portion thereof by a tenth bearing B10 and an eleventh bearing B11 arranged in series.

In the present embodiment, the driven shaft 66c is a shaft that directly transmits the driving force to the disc 50, which is a shaft to which a large multi-axis force (axial force) and a lateral force (lateral force) are applied, and therefore, in this case, the tenth bearing B10 may apply a bearing capable of preventing the axial force of the driven shaft 66c, for example, a thrust bearing (thrust bearing), and the eleventh bearing B11 may apply a bearing capable of preventing the lateral force (lateral force) of the driven shaft 66c, for example, an automatic aligning bearing.

Since the tenth and eleventh bearings B10 and B11 are disposed in series on the driven shaft 66c on the bottom surface of the gear case 62c, the bottom surface of the gear case 62c can be made relatively thicker than the other surfaces to provide the tenth and eleventh bearings B10 and B11. In the case where the thickness of the bottom surface of the gear case 62c is made to be the same as the conventional thickness, the bearing housing 67a of the first embodiment described above may be fixedly provided inside the gear case 62c to provide the tenth bearing B10 and the eleventh bearing B11.

As described above, in the present embodiment, the driven shaft 66c is a shaft that directly transmits the driving force to the disc 50, to which a large multi-axis force and a transverse force are applied, but not only the shaft force and the transverse force can be prevented by the tenth bearing B10, the eleventh bearing B11, but also the driven shaft 66c itself is short in length, and therefore the ninth bearing B9 can be used as a bearing capable of preventing the transverse force of the driven shaft 66c, for example, a self-aligning bearing.

The lower bearing portion 70 shown in fig. 2 described above is to restrain the lateral movement of the rotor 30 rotated by the power of the driving portion 60, which may be implemented as various embodiments, and hereinafter, the lower bearing portion 70a of the first embodiment will be described with reference to fig. 12 to 14, the lower bearing portion 70b of the second embodiment will be described with reference to fig. 15 to 17, the lower bearing portion 70c of the third embodiment will be described with reference to fig. 18 to 20, the lower bearing portion 70d of the fourth embodiment will be described with reference to fig. 21 to 22, the lower bearing portion 70e of the fifth embodiment will be described with reference to fig. 23 to 25, and the lower bearing portion 70f of the sixth embodiment will be described with reference to fig. 26 to 27.

Fig. 12 is a partial view of the wind propulsion system 1 for explaining the first embodiment of the lower bearing portion 70 shown in fig. 2, fig. 13 is a view taken along the line A-A 'of fig. 12, and fig. 14 is a view taken along the line B-B' of fig. 13.

As shown in fig. 12 to 14, the lower bearing portion 70a of the first embodiment may be constituted by an aggregate of bearing units 71a, and may be provided to the base structure 10.

The bearing unit 71a may be provided to the base structure 10, and may be composed of a guide bearing 71a1 and a bearing support table 71a 2.

The guide bearing 71a1 may be provided at an upper end of the bearing support table 71a2, and may guide the rotation of the rotor 30.

The bearing support table 71a2 may support the guide bearing 71a1 provided at the upper end thereof, and may be provided to the base structure 10.

The bearing units 71a may be arranged at predetermined intervals along the inner peripheral surface of the rotor 30 to form the lower bearing portion 70a, and in this case, the guide bearing 71a1 may be closely attached to the inner peripheral surface of the rotor 30, and the bearing support base 71a2 may be provided on the base structure 10 so as not to overlap the rotor 30 and the stator 20.

In the present embodiment, a passage 81 may be provided between the lower bearing portion 70a and the stator 20 to enable maintenance of the bearing unit 71a to be easily performed.

The passage 81 can be ensured by forming the stator 20 to have a smaller diameter than the conventional one. For example, in the case where the diameter of the existing stator is 4 to 4.5m, the stator 20 of the present embodiment can secure the passage way 81 by reducing the diameter to a level of 2 to 2.5 m.

The overall diameter of the stator 20 may be reduced, but as shown in fig. 12, it is preferable that the diameter of the upper portion where the driving portion 60 is provided be made as large as the conventional diameter so that a space for installing the driving portion 60 is provided in the upper portion.

In this way, in the lower bearing portion 70a of the present embodiment, the bearing unit 71a is easy to manufacture, the number of installation work can be reduced by directly providing the bearing support base 71a2 to the base structure 10, maintenance can be easily performed by securing the passage 81, and the weight of the stator 20 can be reduced.

Fig. 15 is a partial view of the wind propulsion system 1 for explaining the second embodiment of the lower bearing portion 70 shown in fig. 2, fig. 16 is a view taken along the line A-A 'of fig. 15, and fig. 17 is a view taken along the line B-B' of fig. 16.

As shown in fig. 15 to 17, the lower bearing portion 70b of the second embodiment may be constituted by an aggregate of bearing units 71b, and may be provided to the base structure 10.

The bearing unit 71b may be provided to the base structure 10, and may be composed of a guide bearing 71b1 and a bearing support table 71b 2.

The guide bearing 71b1 may be provided at an upper end of the bearing support table 71b2, and may guide the rotation of the rotor 30.

The bearing support table 71b2 may support the guide bearing 71b1 provided at the upper end thereof, and may be provided to the base structure 10.

The plurality of bearing units 71b may be arranged at predetermined intervals along the inner peripheral surface of the rotor 30 to form the lower bearing portion 70b, and in this case, the guide bearing 71b1 may be closely attached to the inner peripheral surface of the rotor 30, and the bearing support base 71b2 may be provided on the base structure 10 so as not to overlap the stator 20.

The stator 20 of the present embodiment may be formed at a lower end portion thereof with an opening portion 82 at a predetermined interval, and by providing the bearing unit 71b at the opening portion 82, the bearing unit 71b may be configured to overlap with the stator 20.

In this way, in the lower bearing portion 70b of the present embodiment, the bearing unit 71b is easy to manufacture, the number of installation work can be reduced by directly providing the bearing support base 71b2 to the base structure 10, and maintenance of the bearing unit 71b can be easily performed through the opening 82.

Fig. 18 is a partial view for explaining the wind propulsion system 1 of the third embodiment of the lower bearing portion 70 shown in fig. 2, fig. 19 is a view for explaining the bearing unit 71c constituting the lower bearing portion 70c of the third embodiment, and fig. 20 (a) to (c) are views showing a state in which the bearing unit 71c of fig. 19 is provided to the stator 20, wherein (a) is a top view, (b) is a front view, and (c) is a rear view.

As shown in fig. 18 to 20, the lower bearing portion 70c of the third embodiment may be constituted by an aggregate of bearing units 71c, and may be provided to the stator 20.

The bearing unit 71c may be provided to the stator 20, and may be constituted by a guide bearing 71c1, a first engagement plate 71c2, and a second engagement plate 71c 3. In the present embodiment, the stator 20 may be provided with windows 83 at predetermined intervals at positions where the bearing units 71c are provided.

The guide bearing 71c1 may be provided to the first engagement plate 71c2, and may guide the rotation of the rotor 30.

The first engagement plate 71c2 may be constituted by a pair, and may be coupled with both ends of the bearing shaft 71c11 of the guide bearing 71c 1. The pair of first engagement plates 71c2 may extend horizontally to one side of the guide bearing 71c1 in a state of being coupled to the bearing shaft 71c11, and may have a form of being vertically bent from an extended end portion. A plurality of first bolt holes 71c21 for bolt-coupling with the second engagement plate 71c3 may be provided in the pair of first engagement plates 71c 2.

The second engagement plate 71c3 may be provided along an edge of the window 83 inside the stator 20, and a plurality of second bolt holes 71c31 corresponding to the first bolt holes 71c21 may be provided for coupling with the pair of first engagement plates 71c 2. The second engagement plate 71c3 may have a shape protruding at least by the radius of the guide bearing 71c1 or less.

The bearing unit 71c may be provided to the stator 20 by bolting the first engagement plate 71c2 and the second engagement plate 71c3, and a plurality of lower bearing portions 70c may be arranged at predetermined intervals along the inner peripheral surface of the rotor 30, and at this time, as shown in fig. 20 (a) to (c), a part of the guide bearing 71c1 may protrude outward through the window 83 of the stator 20 and be closely attached to the inner peripheral surface of the rotor 30 in a state where the guide bearing is fixed by the first engagement plate 71c2 and the second engagement plate 71c 3.

Thus, the lower bearing portion 70c of the present embodiment can be easily manufactured by modularly manufacturing the bearing unit 71c, and the number of installers can be reduced, and by being provided to the stator 20, structural stability can be ensured.

Fig. 21 is a partial view for explaining the wind propulsion system 1 of the fourth embodiment of the lower bearing portion 70 shown in fig. 2, and fig. 22 is a view for explaining a bearing unit 71d constituting the lower bearing portion 70d of the fourth embodiment.

As shown in fig. 21 to 22, the lower bearing portion 70d of the fourth embodiment may be constituted by an aggregate of bearing units 71d, and may be provided to the stator 20.

The bearing unit 71d may be provided to the stator 20, and may be composed of a guide bearing 71d1, a joint box 71d 2. In the present embodiment, the stator 20 may be provided with windows 84 at predetermined intervals at positions where the bearing units 71d are provided.

The guide bearing 71d1 may be provided to the joint box 71d2, and may guide the rotation of the rotor 30.

The joint box 71d2 may be provided along the edge of the window 84 inside the stator 20, fixing the guide bearing 71d1 in a state in which a part of the guide bearing 71d1 protrudes to the outside. The joint box 71d2 may be provided with a plurality of first bolt holes 71d21 for bolt-coupling with the stator 20.

The stator 20 may be provided with windows 84 at predetermined intervals at positions where the bearing units 71d are provided, and second bolt holes 71d22 corresponding to the first bolt holes 71d21 may be provided along edges of the windows 84 for bolt coupling with the joint box 71d 2.

The bearing unit 71d is provided to the stator 20 by bolt-fastening of the joint case 71d2, and a plurality of lower bearing portions 70d are provided at predetermined intervals along the inner peripheral surface of the rotor 30, and at this time, a part of the guide bearing 71d1 protrudes outward through the window 84 of the stator 20 and is closely attached to the inner peripheral surface of the rotor 30 in a state where the joint case 71d2 is fixed to the stator 20.

Thus, the lower bearing portion 70d of the present embodiment can be easily manufactured by modularly manufacturing the bearing unit 71d, and the number of installers can be reduced, and by being provided to the stator 20, structural stability can be ensured.

Fig. 23 is a partial view of the wind propulsion system 1 for explaining the fifth embodiment of the lower bearing portion 70 shown in fig. 2, fig. 24 is a view taken along the line A-A 'of fig. 23, and fig. 25 is a view taken along the line B-B' of fig. 24.

As shown in fig. 23 to 25, the lower bearing portion 70e of the fifth embodiment may be constituted by a single body of the bearing unit 71e, and may be provided to the stator 20.

The bearing unit 71e may be provided to the stator 20, and may be composed of a guide bearing 71e1 and a guide rail 71e 2.

The guide bearing 71e1 may be provided along the outer circumferential surface of the stator 20, and may guide the rotation of the rotor 30.

The guide bearing 71e1 may be a single bearing in the form of a ring, and may be, for example, a journal type (journ type) or a ball/roller type (ball/roller type) bearing.

Considering that the guide bearing 71e1 in the ring form is a bearing capable of being provided to the current maximum size of the structure having a diameter of 2.5m, the diameter of the stator 20 may be at least less than 2.5m. The entire stator 20 may have a diameter of 2.5m or less, but as shown in fig. 23, the diameter of the upper portion where the driving portion 60 is provided may be preferably as large as the conventional diameter (e.g., 4 to 4.5 m) to provide a space in which the driving portion 60 is provided in the upper portion.

The guide rail 71e2 may be formed along an inner circumferential surface of the rotor 30 at a position corresponding to the guide bearing 71e1 in a ring shape, and may guide the guide bearing 71e1. At this time, the guide rail 71e2 may realize various protruding heights, which may be determined according to the diameter of the rotor 30.

That is, when the diameter of the stator 20 is 2.5m, the minimum diameter of the rotor 30 may correspond to the diameter of the guide bearing 71e1 provided at the outer circumferential surface of the stator 20, and the maximum diameter of the rotor 30 may be determined according to the protruding height of the guide rail 71e 2.

In general, the larger the diameter of the rotor 30, the stronger the wind propulsion capability, and therefore, in the present embodiment, even if the diameter of the rotor 30 is increased to a desired size, the function of the lower bearing portion 70e can be performed by adjusting the protruding height of the guide rail 71e 2.

Such guide rail 71e2 may be manufactured separately and provided on the inner peripheral surface of the rotor 30, or may be manufactured integrally with the rotor 30.

Thus, the lower bearing portion 70e of the present embodiment can ensure structural stability by applying a single bearing in the form of a ring as the guide bearing 71e1 to the stator 20, and can easily improve the wind propulsion performance by changing the size of the rotor 30 to a desired size by adjusting the height of the guide rail 71e 2.

Fig. 26 is a partial view of the wind propulsion system 1 for explaining the sixth embodiment of the lower bearing portion 70 shown in fig. 2, and fig. 27 is a view taken along the line A-A' of fig. 26.

As shown in fig. 26 to 27, the lower bearing portion 70f of the sixth embodiment may be constituted by an aggregate of bearing units 71f, and may be provided to the rotor 30.

The bearing unit 71f may be provided to the rotor 30, and may be constituted by a guide bearing 71f1, an arm 71f2, and a guide rail 71f 3.

The guide bearing 71f1 may be provided at one side of the arm 71f2, and may guide the rotation of the rotor 30.

The arm 71f2 may be provided on the inner peripheral surface of the rotor 30. The arm 71f2 may be of a variable length, folding or fixed type. In the case where the arm 71f2 is of a variable length type, the length can be adjusted manually like a telescope or tent pole.

The guide rail 71f3 may be formed along the outer circumferential surface of the stator 20, and may guide the guide bearing 71f1. At this time, the guide rail 71f3 may realize various protruding heights, which may be determined according to the diameter of the stator 20 or the rotor 30.

For example, in a state where the diameter of the rotor 30 is determined, when the diameter of the stator 20 is changed, the function of the lower bearing portion 70f may be performed by adjusting the protruding height of the guide rail 71f3 according to the changed diameter. In addition, in a state where the diameter of the stator 20 is determined, the same is true when the diameter of the rotor 30 is changed.

Such a guide rail 71f3 may be manufactured separately and provided on the outer peripheral surface of the stator 20, or may be manufactured integrally with the stator 20.

Thereby, the lower bearing portion 70f of the present embodiment can manufacture the size of the rotor 30 or the stator 20 to a desired size by adjusting the height of the guide rail 71f3, so that the wind propulsion performance can be easily improved.

As described above, the wind propulsion system 1 according to the present invention is described with reference to fig. 3 to 27 by way of various embodiments, in which the stator 20, the rotor 30, the end plate 40, the disk 50, the driving portion 60, and the lower bearing portion 70 shown in fig. 2 are respectively described, and the embodiments are not limited to the respective configurations, and may include a combination of the above embodiments or a combination of at least one of the above embodiments and a known technique as another embodiment.

While the present invention has been described above with reference to the embodiments thereof, the present invention is not limited to the embodiments, and those skilled in the art to which the present invention pertains will appreciate that various combinations, modifications and applications not shown in the embodiments can be realized without departing from the essential technical content of the embodiments. Accordingly, variations and application-related technical content that may be easily derived from the embodiments of the present invention should be construed as being included in the present invention.

Description of the reference numerals

1: wind propulsion system 10: base structure

20: stators 30, 30a, 30b: rotor

31a: the unit panel 31a1: curved plate

31a2: the female connector 31a21: first plate

31a22: the second plate 31a23: third plate

31a21: fourth plate 31a3: male connector

31a31: fifth plate 31a32: sixth plate

31a4: insertion space 31b: lower rotor

31b1: first edge panel 32b: upper rotor

32b1: second edge panel 33b: coupling member

33b1: the first clamp plate 33b2: second clamping plate

33b3: the first bolt member 33b4: second bolt member

33b5: the first adhesive member 33b6: second adhesive member

40 40a: end plate 41a: circular plate

42a: reinforcing ribs 43a: central region

44a: peripheral region 50: disc

60. 60a, 60b, 60c: driving units 61a and 61c: motor with a motor housing

62a, 62c: gearboxes 63a, 63c: driving shaft

64a, 64c: drive gears 65a, 65c: driven gear

66a, 66c: driven shaft 66a1: a first driven shaft

66a2: second driven shafts 67a, 67b: bearing housing

68a: coupling member

70. 70a, 70b, 70c, 70d, 70e, 70f: lower bearing part

71a, 71b, 71c, 71d, 71e, 71f: bearing unit

71a1, 71b1, 71c1, 71d1, 71e1, 71f1: guide bearing

71c11: bearing shafts 71a2, 71b2: bearing support table

71c2: the first engagement plate 71c21: first bolt hole

71c3: the second engagement plate 71c31: second bolt hole

71d2: the junction box 71d21: first bolt hole

71d22: the second bolt hole 71e2: guide rail

71f2: arm 71f3: guide rail

81: pass-through path 82: opening part

83. 84: windows B1 to B11: first to eleventh bearings

S: ship L: lifting device

Claims (14)

1. A wind propulsion system, wherein,

comprising the following steps:

a stator vertically disposed on the deck;

a rotor surrounding the outside of the stator and configured in a cylindrical shape;

a driving unit for transmitting rotational power to the rotor through a disk connected to the rotor; and

a lower bearing part arranged at the lower part of the rotor to restrain the lateral movement of the rotor,

the lower bearing portion includes:

and a joint part formed by an aggregate of bearing units, at least a part of which is arranged on the inner side of the stator along the edge of a window arranged at a predetermined interval from the position where the bearing units are arranged, and supports a guide bearing for guiding the rotation of the rotor on the stator.

2. The wind propulsion system of claim 1, wherein,

the joint portion includes:

a first engagement plate formed of a pair and coupled to both ends of a bearing shaft of the guide bearing; and

and a second engagement plate provided along an edge of the window at an inner side of the stator to be coupled with the first engagement plate.

3. The wind propulsion system of claim 2, wherein,

the first engagement plate extends horizontally to one side of the guide bearing in a state of being coupled to the bearing shaft, has a form of being vertically bent from an extended end portion, is provided with a plurality of first bolt holes for being coupled with the second engagement plate by bolts,

the second engagement plate has a shape protruding at least by the radius of the guide bearing or less, and is provided with a plurality of second bolt holes corresponding to the first bolt holes.

4. The wind propulsion system of claim 1, wherein,

the joint portion includes:

and a joint box provided along an edge of the window inside the stator, for fixing the guide bearing in a state that a part of the guide bearing protrudes to the outside.

5. The wind propulsion system of claim 1, wherein,

The driving section includes:

a gear box which is provided with a driving shaft rotated by a motor, a driving gear arranged on the driving shaft, a driven gear meshed with the driving gear for rotation, and a first driven shaft combined with the driven gear and supporting the rotation of the driven gear, and is arranged on the inner side of the stator; and

and the bearing shell is connected with the first driven shaft through a coupling component and clamps a second driven shaft which transmits rotation force to the disc.

6. The wind propulsion system of claim 5, wherein the wind turbine comprises a wind turbine blade,

the bearing housing is disposed inside the top surface of the stator or outside the top surface of the stator.

7. The wind propulsion system of claim 5, wherein the wind turbine comprises a wind turbine blade,

the upper part of the driving shaft is rotatably coupled to the top surface of the gear case using a first bearing,

the lower part of the driving shaft is rotatably coupled to the bottom surface of the gear case using a second bearing,

the first bearing and the second bearing are bearings that prevent a lateral force of the drive shaft or lateral vibration of the drive shaft.

8. The wind propulsion system of claim 5, wherein the wind turbine comprises a wind turbine blade,

The upper portion of the first driven shaft is rotatably coupled to the top surface of the gear case using a third bearing,

the lower part of the first driven shaft is rotatably coupled to the bottom surface of the gear case by a fourth bearing,

the third bearing and the fourth bearing are bearings that prevent a lateral force of the first driven shaft.

9. The wind propulsion system of claim 5, wherein the wind turbine comprises a wind turbine blade,

the second driven shaft is rotatably coupled to the top surface of the stator using a fifth bearing and a sixth bearing arranged in series,

the fifth bearing is a bearing that prevents an axial force of the second driven shaft,

the sixth bearing is a bearing that prevents a lateral force of the second driven shaft.

10. The wind propulsion system of claim 1, wherein,

the rotor includes:

a lower rotor provided at an upper end with a first edge panel extending inward by a predetermined length and having a ring shape of a space accommodating the disk;

an upper rotor provided at a lower end with a second edge panel extending inward by a predetermined length and having a ring shape of a space accommodating the disk; and

and a coupling member coupling the lower rotor, the upper rotor, and the disk.

11. The wind propulsion system of claim 10, wherein,

the bonding member includes:

a first clamping plate clamping the bottom surface of the first edge panel and the bottom surface of the disk;

a second clamping plate clamping the top surface of the first edge panel and the top surface of the disk;

a first bolt member fixing the first clamping plate, the second clamping plate, and the disk; and

and a second bolt member fixing the first and second edge panels.

12. The wind propulsion system of claim 11, wherein,

the joining member further includes:

a first adhesive member disposed between the first edge panel and the second clamping plate; and

and a second adhesive member disposed between the second edge panel and the second clamping plate.

13. The wind propulsion system of claim 10, wherein,

the foundation structure on land is mounted on the deck with a lifting device,

the disc and the driving part are provided to an upper portion of the stator on land,

lifting the lower rotor with the lifting device and accommodating the stator inside the lower rotor,

The lower rotor is coupled with the disk by the coupling member,

the lower rotor accommodating the stator is mounted on the base structure by the lifting device,

aligning an upper rotor on land with an upper portion of the lower rotor mounted on the base structure using the lifting device,

the lower rotor is coupled with the upper rotor by the coupling member.

14. A vessel having the wind propulsion system according to any one of claims 1 to 13.

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