Wind propulsion system and vessel having the same

Abstract

The present invention relates to a wind propulsion system and a ship having the same, the wind propulsion system of the present invention including: a stator provided vertically on a deck; a rotor configured in a cylindrical shape surrounding an outer side of the stator; a driving portion transmitting rotational power to the rotor through a disc connected to the rotor; and a lower bearing portion provided at a lower portion of the rotor to restrain lateral movement of the rotor, the lower bearing portion including: a joint portion composed of an assembly of bearing units, at least a portion of which is provided along an edge of a window provided at a predetermined interval from a position where the bearing units are provided on an inner side of the stator, to support a guide bearing that guides rotation of the rotor to the stator.

Description

Technical Field

[0001] This invention relates to wind propulsion systems and ships having the same. Background Technology

[0002] Ships typically use fossil fuels for propulsion. It is well known that ships are equipped with high-powered engines that drive power boosters and other systems; large ships can consume hundreds of tons of fuel during long voyages. Operating these ships incurs enormous costs, and the emissions of pollutants from fuel consumption are a very serious problem.

[0003] To address these issues, it is preferable to diversify the power sources of ships. For example, electric propulsion ship technology, which obtains part of the propulsion power from electric motors, has been developed and applied. In addition, technologies that utilize the diverse environmental conditions experienced by ships at sea to obtain electricity have also been developed.

[0004] In addition, the utilization of natural energy sources such as sunlight and wind power, which produce no exhaust emissions, has also attracted much attention. In particular, in the case of wind, wind power can be easily converted into propulsion by installing equipment such as sails on the deck, thus having the advantages of simple structure and low maintenance costs.

[0005] In addition, in recent years, unlike the commonly known sails, ships have been equipped with rotor devices (as an example, magnus rotors) that can directly rotate using power and convert wind force into propulsion in the desired direction. Such rotor devices consist of a stator and a rotor, the stator being fixed to the deck, and the rotor being configured in a cylindrical shape surrounding the surface and top surface of the stator, and adjusting the rotational speed or direction.

[0006] Unlike sails, such rotor devices can convert wind power into the required propulsion, and therefore have been the subject of much recent research and development. However, the rotor device is a large column with a diameter of several meters and a height of tens of meters, which presents many problems that need to be solved / improved in terms of installation on deck, durability under ship movement, obstruction of forward visibility, and control. Summary of the Invention

[0007] The technical problem to be solved

[0008] The present invention is proposed to solve the problems of the prior art as described above. The object of the present invention is to provide a wind propulsion system and a ship having the same, which can improve the structural performance of the rotor and make manufacturing easier, ensure the structural stability of the drive unit that drives the rotor, ensure the structural stability of the lower bearing unit provided between the rotor and the stator and make maintenance easier, and ensure the structural stability of the lightweight end plate.

[0009] Technical solutions to the problem

[0010] A wind propulsion system according to one aspect of the present invention may include: a stator, vertically disposed on a deck; a rotor, configured in a cylindrical shape surrounding the outside of the stator; a drive unit, transmitting rotational power to the rotor via a disk connected to the rotor; and a lower bearing unit disposed at the lower part of the rotor to suppress lateral movement of the rotor. The lower bearing unit may include: a joint, consisting of an assembly of bearing units, at least a portion of which is disposed on the inner side of the stator along the edge of a window spaced at a predetermined interval from the location where the bearing units are disposed, supporting a guide bearing that guides the rotation of the rotor on the stator.

[0011] Specifically, the joint may include: a first joint plate, consisting of a pair, which is engaged with both ends of the bearing shaft of the guide bearing; and a second joint plate, disposed on the inner side of the stator along the edge of the window, which is engaged with the first joint plate.

[0012] Specifically, the first connecting plate can extend horizontally to one side of the guide bearing while being coupled to the bearing shaft, and has a shape that is bent vertically from the extended end, and is provided with a plurality of first bolt holes for bolting with the second connecting plate. The second connecting plate can have a shape that protrudes at least at a size equal to or less than the radius of the guide bearing, and is provided with a plurality of second bolt holes corresponding to the first bolt holes.

[0013] Specifically, the joint may include: a connector box disposed on the inner side of the stator along the edge of the window, which secures the guide bearing in a state where a portion of the guide bearing protrudes outward.

[0014] Specifically, the drive unit may include: a gearbox, which houses a drive shaft that rotates via a motor, a drive gear disposed on the drive shaft, a driven gear that meshes with and rotates with the drive gear, and a first driven shaft that engages with and supports the rotation of the driven gear, and is disposed inside the stator; and a bearing housing, which is connected to the first driven shaft via a coupling member and clamps a second driven shaft that transmits rotational force to the disk.

[0015] Specifically, the bearing housing may be disposed on the inner side of the top surface of the stator, or it may be disposed on the outer side of the top surface of the stator.

[0016] Specifically, the upper part of the drive shaft can be rotatably connected to the top surface of the gearbox using a first bearing, and the lower part of the drive shaft can be rotatably connected to the bottom surface of the gearbox using a second bearing. The first bearing and the second bearing can be bearings that prevent lateral force or lateral vibration of the drive shaft.

[0017] Specifically, the upper part of the first driven shaft can be rotatably connected to the top surface of the gearbox using a third bearing, and the lower part of the first driven shaft can be rotatably connected to the bottom surface of the gearbox using a fourth bearing. The third and fourth bearings can be bearings that prevent lateral forces on the first driven shaft.

[0018] Specifically, the second driven shaft can be rotatably coupled to the top surface of the stator using a fifth bearing and a sixth bearing arranged in series. The fifth bearing can be a bearing to prevent axial forces on the second driven shaft, and the sixth bearing can be a bearing to prevent lateral forces on the second driven shaft.

[0019] Specifically, the rotor may include: a lower rotor having a first edge panel in the shape of an annulus extending inward by a predetermined length at its upper end and having a space for accommodating the disk; an upper rotor having a second edge panel in the shape of an annulus extending inward by a predetermined length at its lower end and having a space for accommodating the disk; and a connecting member connecting the lower rotor, the upper rotor, and the disk.

[0020] Specifically, the connecting component may include: a first clamping plate for clamping the bottom surface of the first edge panel and the bottom surface of the disk; a second clamping plate for clamping the top surface of the first edge panel and the top surface of the disk; a first bolt component for fixing the first clamping plate, the second clamping plate and the disk; and a second bolt component for fixing the first edge panel and the second edge panel.

[0021] Specifically, the bonding 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.

[0022] Specifically, a lifting device can be used to mount the land-based foundation structure onto the deck. On land, the disc and the drive unit are positioned on the upper part of the stator. The lifting device is used to lift the lower rotor and house the stator inside the lower rotor. The connecting member is used to connect the lower rotor to the disc. The lifting device is used to mount the lower rotor containing the stator onto the foundation structure. The lifting device is used to align the upper part of the upper rotor on land with the upper part of the lower rotor mounted on the foundation structure. The connecting member is used to connect the lower rotor to the upper rotor.

[0023] Another aspect of the present invention may include the wind propulsion system described above.

[0024] Technical effect

[0025] The wind propulsion system of the present invention can improve the structural performance of the rotor and make manufacturing easier, can ensure the structural stability of the drive unit that drives the rotor, can ensure the structural stability of the lower bearing unit located between the rotor and the stator and make maintenance easier, and can ensure the structural stability through the lightweight end plate. Attached Figure Description

[0026] Figure 1 This is a diagram showing a ship having a wind propulsion system according to an embodiment of the present invention.

[0027] Figure 2 This is a diagram illustrating a wind propulsion system according to an embodiment of the present invention.

[0028] Figure 3 It is used for explanation Figure 2 A diagram of the first embodiment of the rotor shown.

[0029] Figure 4 This is a diagram illustrating the unit panel that constitutes the rotor of the first embodiment.

[0030] Figure 5 It is used for explanation Figure 2 A diagram of a second embodiment of the rotor is shown.

[0031] Figure 6 This is a diagram illustrating the connecting member that connects the lower rotor and the upper rotor constituting the rotor of the second embodiment.

[0032] Figure 7 Figures (a) to (d) are used to illustrate the rotor mounting process of the second embodiment.

[0033] Figure 8 It is used for explanation Figure 2 A diagram of the first embodiment of the end plate shown.

[0034] Figure 9 It is used for explanation Figure 2 A diagram of the first embodiment of the drive unit shown.

[0035] Figure 10 It is used for explanation Figure 2 A diagram of a second embodiment of the drive unit shown.

[0036] Figure 11 It is used for explanation Figure 2 A diagram of the third embodiment of the drive unit shown.

[0037] Figure 12 It is used for explanation Figure 2 A partial view of the wind propulsion system of the first embodiment of the lower bearing section shown.

[0038] Figure 13 It is along Figure 12 The diagram is a cross-section of line A-A'.

[0039] Figure 14 It is along Figure 13 The diagram is a cross-section of line B-B'.

[0040] Figure 15 It is used for explanation Figure 2 A partial view of the wind propulsion system of the second embodiment shown in the lower bearing section.

[0041] Figure 16 It is along Figure 15 The diagram is a cross-section of line A-A'.

[0042] Figure 17 It is along Figure 16 The diagram is a cross-section of line B-B'.

[0043] Figure 18 It is used for explanation Figure 2 A partial view of the wind propulsion system of the third embodiment shown in the lower bearing section.

[0044] Figure 19 This is a diagram illustrating the bearing unit constituting the lower bearing portion of the third embodiment.

[0045] Figure 20 (a) through (c) are shown Figure 19 The diagram shows the bearing unit positioned in the stator.

[0046] Figure 21 It is used for explanation Figure 2 A partial view of the wind propulsion system of the fourth embodiment shown in the lower bearing section.

[0047] Figure 22This is a diagram illustrating the bearing unit constituting the lower bearing portion of the fourth embodiment.

[0048] Figure 23 It is used for explanation Figure 2 A partial view of the wind propulsion system of the fifth embodiment shown in the lower bearing section.

[0049] Figure 24 It is along Figure 23 The diagram is a cross-section of line A-A'.

[0050] Figure 25 It is along Figure 24 The diagram is a cross-section of line B-B'.

[0051] Figure 26 It is used for explanation Figure 2 A partial view of the wind propulsion system of the sixth embodiment shown in the lower bearing section.

[0052] Figure 27 It is along Figure 26 The diagram is a cross-section of line A-A'. Detailed Implementation

[0053] The objectives, specific advantages, and novel features of this invention will become more apparent from the following detailed description and preferred embodiments in conjunction with the accompanying drawings. When assigning reference numerals to structural elements in the various drawings in this specification, it should be noted that the same structural elements are referenced using the same numerals whenever possible, even when shown in different drawings. Furthermore, in describing this invention, detailed descriptions of relevant prior art will be omitted if it is determined that such specific descriptions might unnecessarily obscure the spirit of the invention.

[0054] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0055] Figure 1 This is a diagram showing a ship S having a wind propulsion system 1 according to an embodiment of the present invention. Figure 2 This is a diagram illustrating a wind propulsion system 1 according to an embodiment of the present invention.

[0056] like Figure 1 and Figure 2 As shown, a wind propulsion system 1 according to an embodiment of the present invention can be installed on the deck of a ship S at least one, which uses power to directly rotate and convert wind power into propulsion in the desired direction, and may include: a basic structure 10, a stator 20, a rotor 30, an end plate 40, a disk 50, a drive unit 60 and a lower bearing unit 70.

[0057] The basic structure 10 can be fixedly installed on the deck, and a stator 20 can be installed on its upper part.

[0058] The stator 20 can be vertically mounted on the foundation structure 10 fixed on the deck and can form the shaft of the rotor 30.

[0059] Such a stator 20 can be a hollow cylindrical structure, on which a drive unit 60 can be mounted.

[0060] The rotor 30 is a cylindrical structure surrounding the stator 20. It can be driven by the drive unit 60 to rotate 360 ​​degrees around the stator 20, which is mounted / fixed to the deck of the ship S. At this time, due to the hydrodynamic interference between the wind around the ship S and the cylindrical rotor 30, the wind can be converted into the propulsion force of the ship S.

[0061] That is, the rotor 30 can rotate by receiving power from the drive unit 60 through the disk 50. At this time, the rotor 30 can rotate with the stator 20 as a reference, which is the central axis in the vertical direction, and generate increased pressure on one side and decreased pressure / suction on the other side, generating positive pressure and negative pressure on one side and the opposite side of the rotor 30 respectively, thereby generating a propulsive force as a force to move the ship 100.

[0062] Furthermore, depending on the direction of the rotor 30, the directions in which positive and negative pressure are formed can be different. Therefore, the navigation direction of the ship S can also be controlled by changing the direction of the rotor 30 to rotate clockwise or counterclockwise.

[0063] Of course, the ship in this embodiment is not limited to generating propulsion through the drive of rotor 30, and it can obviously be combined with existing embodiments. For example, when the navigation of the ship S mainly utilizes the main engine (not shown) and rudder, rotor 30 can play an auxiliary role. In contrast, since the operation of rotor 30 can also be the main method, while the main engine and rudder assist the navigation of the ship S, the drive of rotor 30 can be performed as needed in various situations.

[0064] The rotor 30 described above can be rotatably connected to the lower bearing section 70 located at the bottom, and connected to the disk 50 that receives power from the drive section 60 located at the top of the stator 20 and provides rotational force.

[0065] The upper end of such rotor 30 can be open, and an end plate 40 can be provided in the open portion.

[0066] The disk 50 can be in a shape corresponding to the inner circumferential surface of the rotor 30, such as a circular plate, and its outer circumferential surface can be fixedly connected to the inner circumferential surface of the rotor 30. Such a disk 50 can receive power from the drive unit 60 and impart rotational force to the rotor 30.

[0067] The drive unit 60 can be disposed on the upper part of the stator 20 and connected to the disk 50. Such a drive unit 60 can generate power to rotate the rotor 30 and transmit rotational force to the rotor 30 through the disk 50.

[0068] The lower bearing portion 70 may be provided at the lower part of the rotor 30. The lower bearing portion 70 may be configured to suppress lateral movement of the rotor 30 when it rotates using the power of the drive portion 60.

[0069] As described above, the wind propulsion system 1 of this embodiment includes: a stator 20, a rotor 30, an end plate 40, a disk 50, a drive unit 60, and a lower bearing unit 70. Hereinafter, reference will be made to... Figures 3 to 27 The various components of such a wind-powered propulsion system 1 will be described in detail.

[0070] The above Figure 2 The rotor 30 shown is a hollow cylindrical structure, which can be implemented in various embodiments. The following will refer to... Figures 3 to 4 The rotor 30a of the first embodiment will be described with reference to Figures 5 to 7 The rotor 30a of the second embodiment is described.

[0071] Figure 3 It is used for explanation Figure 2 The figure shows a first embodiment of the rotor 30. Figure 4 This is a diagram illustrating the unit panel 31a that constitutes the rotor 30a in the first embodiment.

[0072] like Figures 3 to 4 As shown, the rotor 30a of the first embodiment can be formed by combining a plurality of unit panels 31a.

[0073] The unit panel 31a can be formed into a predetermined width, length, and thickness by stretching using glass fiber, carbon fiber, or various composite materials.

[0074] The unit panel 31a can be configured to be interference-fitted with other adjacent unit panels 31a.

[0075] like Figure 4 As shown, the unit panel 31a can be composed of a curved panel 31a1 that has a curved shape in the width direction and extends in the length direction, a female connector 31a2 disposed along one edge of the curved panel 31a1, and a male connector 31a3 disposed along the other edge of the curved panel 31a1. The thickness of the curved panel 31a1, the female connector 31a2, and the male connector 31a3 constituting the unit panel 31a can be the same or similar.

[0076] The curved panel 31a1 may have a curved surface corresponding to the radius of the rotor 30a.

[0077] The female connector 31a2 and the male connector 31a3 can have various structures that enable interference fit with adjacent unit panels 31a.

[0078] As an example, the female connector 31a2 may be composed of a first plate 31a21 that bends and extends from one end of the curved panel 31a1 toward the inside of the rotor 30a, a second plate 31a22 that bends and extends from the extended end of the first plate 31a21 toward the outside of the curved panel 31a1, a third plate 31a23 that bends and extends from the extended end of the second plate 31a22 toward the outside of the rotor 30a, and a fourth plate 31a24 that bends and extends from the extended end of the third plate 31a23 toward the inside of the curved panel 31a1. The first plate to the fourth plate 31a24 can form a "┐" shaped insertion space 31a4 corresponding to the shape of the male connector 31a3. At this time, the male connector 31a3 can be composed of a fifth plate 31a31 that bends and extends from the other end of the curved panel 31a1 toward the inside of the rotor 30a, and a sixth plate 31a32 that bends and extends from the extended end of the fifth plate 31a31 toward the inside of the curved panel 31a1, so as to correspond to the "┐" shaped insertion space 31a4 of the female connector 31a2.

[0079] Therefore, the rotor 30a of this embodiment can be formed into a hollow cylindrical shape by using the interference fit of the unit panel 31a constructed as described above, thereby simplifying the bonding process compared with adhesive bonding or bolt bonding.

[0080] In addition, the rotor 30a of this embodiment is manufactured by stretch forming of unit panel 31a using glass fiber, carbon fiber or various composite materials, which not only saves manufacturing costs by simplifying the manufacturing process, but also achieves lightweighting.

[0081] In addition, the interference fit portions of the female connector 31a2 and male connector 31a3 of the rotor 30a in this embodiment are thicker than the curved panel 31a1, so they can naturally act as reinforcements in the length direction. This may be more economical than the existing clamping manufacturing method that injects resin or the like into the interior for reinforcement.

[0082] Figure 5 It is used for explanation Figure 2 The figure shows a second embodiment of the rotor 30. Figure 6 This is a diagram illustrating the connecting member 33b that connects the lower rotor 31b and the upper rotor 32b constituting the rotor 30b of the second embodiment. Figure 7 Figures (a) to (d) are for illustrating the mounting process of the rotor 30b in the second embodiment.

[0083] like Figures 5 to 7As shown, the rotor 30b of the second embodiment can be composed of a two-stage assembly structure consisting of a lower rotor 31b and an upper rotor 32b assembled by a connecting member 33b.

[0084] The lower rotor 31b and the upper rotor 32b can each be a hollow cylindrical structure, and can be formed from the same material and shape.

[0085] The lower rotor 31b can be sized to accommodate the stator 20, the disk 50, the drive section 60, and the lower bearing section 70.

[0086] A first edge panel 31b1 in the shape of an annulus, extending inward to a predetermined length and having a space to accommodate the disk 50, may be provided at the upper end of the lower rotor 31b. A second edge panel 32b1 in the shape of an annulus, extending inward to a predetermined length and having a space to accommodate the disk 50, may be provided at the lower end of the upper rotor 32b.

[0087] The connecting member 33b can be used to connect the lower rotor 31b to the disk 50 while the stator 20, which is provided with the disk 50 and the drive part 60 on the upper part, is housed inside the lower rotor 31b and the first edge panel 31b1 is aligned with the disk 50. In the state where the lower rotor 31b is connected to the disk 50, the first edge panel 31b1 of the lower rotor 31b is connected to the second edge panel 32b1 of the upper rotor 32b.

[0088] Specifically, the connecting component 33b may include: a first clamping plate 33b1, clamping 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 component 33b3, fixing the first clamping plate 33b1, the second clamping plate 33b2 and the disk 50; and a second bolt component 33b4, fixing the second edge panel 32b1 of the upper rotor 32b to the first edge panel 31b1 of the lower rotor 31b.

[0089] In the above, the first bolt member 33b3 can connect the lower rotor 31b to the disk 50 by fixing the first clamping plate 33b1, the disk 50, and the second clamping plate 33b2, and the second bolt member 33b4 can connect the lower rotor 31b to the upper rotor 32b by fixing the first clamping plate 33b1, the first edge panel 31b1, the second clamping plate 33b2, and the second edge panel 32b1.

[0090] Additionally, the bonding member 33b may also include: a first adhesive member 33b5 disposed between the first edge panel 31b1 and the second clamping plate 33b2 of the lower rotor 31b; and a second adhesive member 33b6 disposed between the second edge panel 32b1 and the second clamping plate 33b2 of the upper rotor 32b. Here, the first adhesive member 33b5 and the second adhesive member 33b6 may be various adhesives or adhesive films applied by coating or bonding methods.

[0091] The mounting process of the lower rotor 31b and upper rotor 32b assembled using the connecting member 33b as described above will be referred to Figure 7 Explain (a) to (d).

[0092] First, such as Figure 7 As shown in (a), the land-based infrastructure 10 is lifted onto the deck of the ship S using a lifting device L. Here, the lifting device L can be a tower crane, a gantry crane, or any suitable lifting means known to those skilled in the art.

[0093] like Figure 7 As shown in (b), on land, the disk 50 and the drive unit 60 are arranged on the upper part of the stator 20, the lower rotor 31b is lifted by the lifting device L and the stator 20 is housed inside it, and the lower rotor 31b is connected to the disk 50 by the connecting member 33b.

[0094] like Figure 7 As shown in (c), the lower rotor 31b, which houses the stator 20, is mounted onto the base structure 10 fixed on the deck using the lifting device L.

[0095] like Figure 7 As shown in (d), the upper rotor 32b on land is aligned with the upper part of the lower rotor 31b mounted on the foundation structure 10 by the lifting device L, and the lower rotor 31b and the upper rotor 32b are joined by the connecting member 33b.

[0096] Therefore, the rotor 30b in this embodiment is composed of a two-stage assembly structure consisting of a lower rotor 31b and an upper rotor 32b assembled using a connecting member 33b. This not only simplifies the assembly process by realizing a two-stage connection structure, but also improves the weight and height requirements of the crane.

[0097] The above Figure 2 The end plate 40 shown is disposed at the upper end of the opening of the rotor 30, and can be implemented in various embodiments, which will be referred to below. Figure 8 The end plate 40a of the first embodiment is described.

[0098] Figure 8 It is used for explanation Figure 2A diagram of the first embodiment of the end plate 40 shown.

[0099] like Figure 8 As shown, the end plate 40a of the first embodiment can be composed of a circular plate 41a and a reinforcing rib 42a, and can be formed of glass fiber reinforced plastic (GFRP) or carbon fiber reinforced plastic (CFRP).

[0100] The circular plate 41a can be divided into a central region 43a and a peripheral region 44a. The central region 43a may be the region corresponding to the upper end of the opening of the rotor 30, and the peripheral region 44a may be the region extending outward from the rotor 30, but is not limited thereto.

[0101] The central region 43a and the peripheral region 44a of the circular plate 41a can be different. For example, the central region 43a of the circular plate 41a can be 10t radial GFRP-2AXIS, and the peripheral region 44a of the circular plate 41a can be 30t radial GFRP-UD.

[0102] The reinforcing rib 42a is used to reinforce the central region 43a of the circular plate 41a. A plurality of reinforcing ribs 42a can be formed by extending radially from the center of the circular plate 41a to the edge of the central region 43a, and can be GFRP-UD in the length direction of 10t.

[0103] In the above, the fiber orientation and thickness values ​​of the circular plate 41a and the reinforcing rib 42a are just examples; obviously, a variety of layering patterns and thicknesses can be applied.

[0104] Therefore, the end plate 40a of this embodiment is made of glass fiber reinforced plastic (GFRP) or carbon fiber reinforced plastic (CFRP), thereby improving the structural performance of the lightweight wind propulsion system 1 through the end plate 40a.

[0105] The above Figure 2 The drive unit 60 shown is disposed on the upper part of the stator 20 and generates power that enables the rotor 30 to rotate. It can be implemented in various embodiments, which will be referred to below. Figure 9 The driving unit 60a of the first embodiment will be described with reference to Figure 10 The driving unit 60b of the second embodiment will be described with reference to Figure 11 The driving unit 60c of the third embodiment will be described.

[0106] Figure 9 It is used for explanation Figure 2 A diagram of the first embodiment of the drive unit 60 shown.

[0107] like Figure 9As shown, the drive unit 60a of the first embodiment may include: a motor 61a, a gearbox 62a, a drive shaft 63a, a drive gear 64a, a driven gear 65a, a driven shaft 66a, and a bearing housing 67a.

[0108] The motor 61a can generate driving force and transmit it to the gearbox 62a, and can be located inside the stator 20.

[0109] The gearbox 62a may contain various gears that are coupled to the motor 61a and used to transmit the driving force required to rotate the drive shaft 63a, and may be located inside the stator 20. The gearbox 62a may be a speed reducer.

[0110] In this embodiment, the gearbox 62a may be provided with a drive shaft 63a that is coupled to the motor 61a and rotates by the motor 61a, a drive gear 64a that is disposed on the drive shaft 63a, a driven gear 65a that meshes with the drive gear 64a and rotates, and a driven shaft 66a that is coupled with the driven gear 65a and supports the rotation of the driven gear 65a.

[0111] The drive gear 64a and the driven gear 65a can be reduction gears with a reduction ratio of 6:1, but obviously they are not limited to this, and reduction gears with various reduction ratios can also be used.

[0112] The driven shaft 66a can be composed of a first driven shaft 66a1 and a second driven shaft 66a2.

[0113] In this case, the first driven shaft 66a1 can be located inside the gearbox 62a and can be configured such that its lower part is rotatably coupled to the bottom surface of the gearbox 62a, and its upper part protrudes outward through the top surface of the gearbox 62a and is coupled to the second driven shaft 66a2.

[0114] The second driven shaft 66a2 can be disposed outside the gearbox 62a, and can be configured such that its lower part is coupled to the upper part of the first driven shaft 66a1 via a coupling member 68a, and its upper part penetrates the top surface of the stator 20 and is coupled to the disk 50. The second driven shaft 66a2 can be connected to the first driven shaft 66a1 and transmit rotational force to the disk 50.

[0115] The aforementioned drive shaft 63a, first driven shaft 66a1, and second driven shaft 66a2 can each rotate using a variety of bearings.

[0116] Specifically, the upper part of the drive shaft 63a can be rotatably connected to the top surface of the gearbox 62a using the first bearing B1, and the lower part can be rotatably connected to the bottom surface of the gearbox 62a using the second bearing B2.

[0117] In this embodiment, the drive shaft 63a is a shaft that rotates using the driving force of the motor 61a. It is not a shaft subjected to a lot of axial force. Therefore, in this case, the first bearing B1 and the second bearing B2 can be bearings that can prevent the lateral force or lateral vibration of the drive shaft 63a, such as self-aligning bearings.

[0118] The upper part of the first driven shaft 66a1 can be rotatably connected to the top surface of the gearbox 62a using the third bearing B3, and the lower part can be rotatably connected to the bottom surface of the gearbox 62a using the fourth bearing B4.

[0119] In this embodiment, the first driven shaft 66a1 does not receive driving force directly from the motor 61a or transmit driving force directly to the disk 50. It is not a shaft subjected to a lot of axial force. Therefore, in this case, the third bearing B3 and the fourth bearing B4 can be bearings that can prevent lateral force on the first driven shaft 66a1, such as self-aligning bearings.

[0120] The second driven shaft 66a2 can be rotatably coupled to the top surface of the stator 20 using the fifth bearing B5 and the sixth bearing B6 arranged in series.

[0121] In this embodiment, the second driven shaft 66a2 is the shaft that directly transmits driving force to the disk 50. It is a shaft to which a lot of axial force and lateral force are applied. Therefore, in this case, the fifth bearing B5 can be a bearing that can prevent the axial force of the second driven shaft 66a2, such as a thrust bearing, and the sixth bearing B6 can be a bearing that can prevent the lateral force of the second driven shaft 66a2, such as a self-aligning bearing like a spherical roller bearing (SRB).

[0122] As described above, the second driven shaft 66a2 is subjected to a lot of axial and lateral forces, making it difficult to securely connect the fifth bearing B5 and the sixth bearing B6, which are arranged in series, to the stator 20 in order to withstand the axial and lateral forces.

[0123] Therefore, in this embodiment, as a means of clamping the second driven shaft 66a2, the bearing housing 67a can be fixedly disposed on the inner side of the top surface of the stator 20. The bearing housing 67a can be penetrated by the second driven shaft 66a2 and can accommodate the fifth bearing B5 and the sixth bearing B6. By fixing the bearing housing 67a on the inner side of the top surface of the stator 20, the second driven shaft 66a2 can withstand axial force and lateral force using the bearing housing 67a.

[0124] Figure 10 It is used for explanation Figure 2 A diagram of a second embodiment of the drive unit 60 shown.

[0125] like Figure 10 As shown, the drive unit 60b of the second embodiment may include: a motor 61a, a gearbox 62a, a drive shaft 63a, a drive gear 64a, a driven gear 65a, a driven shaft 66a composed of a first driven shaft 66a1 and a second driven shaft 66a2, a bearing housing 67b, and a coupling member 68a.

[0126] Compared with the drive unit 60a of the first embodiment described above, the bearing housing 67b of the drive unit 60b of the second embodiment has a different mounting position.

[0127] That is, the difference is that the bearing housing 67b of this embodiment is disposed on the outer side of the top surface of the stator 20, while the bearing housing 67a of the first embodiment described above is disposed on the inner side of the top surface of the stator 20, and the remaining structural elements are the same in structure.

[0128] The remaining structural elements are structurally identical to those in the first embodiment, and thus the same reference numerals are used. Accordingly, to avoid repetition, descriptions of the same structures are omitted here.

[0129] Figure 11 It is used for explanation Figure 2 A diagram of a third embodiment of the drive unit 60 shown.

[0130] like Figure 11 As shown, the drive unit 60c of the third embodiment may include: a motor 61c, a gearbox 62c, a drive shaft 63c, a drive gear 64c, a driven gear 65c, and a driven shaft 66c.

[0131] The motor 61c can generate driving force and transmit it to the gearbox 62c, and can be located inside the top surface of the stator 20.

[0132] The gearbox 62c may contain a variety of gears that are coupled to the motor 61c and used to transmit the driving force required for rotating the drive shaft 63c, and may be located on the outer side of the top surface of the stator 20. The gearbox 62c may be a speed reducer.

[0133] In this embodiment, the gearbox 62c may be provided with a drive shaft 63c that is coupled to the motor 61c and rotates using the motor 61c, a drive gear 64c that is disposed on the drive shaft 63c, a driven gear 65c that meshes with the drive gear 64c and rotates, and a driven shaft 66c that is coupled with the driven gear 65c to support the rotation of the driven gear 65c and transmit rotational force to the disk 50.

[0134] The drive gear 64c and the driven gear 65c can be reduction gears with a reduction ratio of 6:1, but obviously they are not limited to this, and reduction gears with various reduction ratios can also be used.

[0135] The aforementioned drive shaft 63c and driven shaft 66c can each rotate using a variety of bearings.

[0136] Specifically, the upper part of the drive shaft 63c can be rotatably connected to the top surface of the gearbox 62c using the seventh bearing B7, and the lower part can be rotatably connected to the bottom surface of the gearbox 62c using the eighth bearing B8.

[0137] In this embodiment, the drive shaft 63c is a shaft that rotates using the driving force of the motor 61c. It is not a shaft subjected to a lot of axial force. Therefore, in this case, the seventh bearing B7 and the eighth bearing B8 can be bearings that can prevent the lateral force or lateral vibration of the drive shaft 63c, such as self-aligning bearings.

[0138] The upper part of the driven shaft 66c can be rotatably connected to the top surface of the gearbox 62c by means of the ninth bearing B9, and the lower part can be rotatably connected to the bottom surface of the gearbox 62c by means of the tenth bearing B10 and the eleventh bearing B11 arranged in series.

[0139] In this embodiment, the driven shaft 66c is the shaft that directly transmits driving force to the disk 50. It is a shaft to which a lot of axial force and lateral force are applied. Therefore, in this case, the tenth bearing B10 can be a bearing that can prevent the axial force of the driven shaft 66c, such as a thrust bearing, and the eleventh bearing B11 can be a bearing that can prevent the lateral force of the driven shaft 66c, such as a self-aligning bearing.

[0140] Furthermore, the tenth bearing B10 and the eleventh bearing B11 are connected in series on the driven shaft 66c at the bottom surface of the gearbox 62c. Therefore, the bottom surface of the gearbox 62c can be relatively thicker than the other surfaces to accommodate the tenth bearing B10 and the eleventh bearing B11. Alternatively, if the bottom surface thickness of the gearbox 62c is the same as the existing thickness, the bearing housing 67a of the first embodiment described above can also be fixedly installed inside the gearbox 62c to accommodate the tenth bearing B10 and the eleventh bearing B11.

[0141] As described above, in this embodiment, the driven shaft 66c is the shaft that directly transmits driving force to the disk 50. It is subjected to a lot of axial force and lateral force. However, not only can the 10th bearing B10 and the 11th bearing B11 prevent axial force and lateral force, but the driven shaft 66c itself is also relatively short. Therefore, the 9th bearing B9 can be used as a bearing that can prevent lateral force on the driven shaft 66c, such as an auto-aligning bearing.

[0142] The above Figure 2 The lower bearing section 70 shown suppresses the lateral movement of the rotor 30, which is rotated by the power of the drive section 60. It can be implemented in various embodiments, which will be referred to below. Figures 12 to 14 The lower bearing portion 70a of the first embodiment will be described with reference to... Figures 15 to 17 The lower bearing portion 70b of the second embodiment will be described with reference to... Figures 18 to 20 The lower bearing portion 70c of the third embodiment will be described with reference to... Figures 21 to 22 The lower bearing portion 70d of the fourth embodiment will be described with reference to... Figures 23 to 25 The lower bearing portion 70e of the fifth embodiment will be described with reference to... Figures 26 to 27 The lower bearing portion 70f of the sixth embodiment will be described.

[0143] Figure 12 It is used for explanation Figure 2 A partial view of the wind propulsion system 1 of the first embodiment shown, with the lower bearing section 70. Figure 13 It is along Figure 12 A diagram cut along line A-A'. Figure 14 It is along Figure 13 The diagram is a cross-section of line B-B'.

[0144] like Figures 12 to 14 As shown, the lower bearing portion 70a of the first embodiment can be composed of an assembly of bearing units 71a and can be installed on the base structure 10.

[0145] The bearing unit 71a can be installed on the base structure 10 and can be composed of a guide bearing 71a1 and a bearing support platform 71a2.

[0146] The guide bearing 71a1 can be set at the upper end of the bearing support platform 71a2 and can guide the rotation of the rotor 30.

[0147] The bearing support platform 71a2 can support the guide bearing 71a1 located on its upper end and can be located on the base structure 10.

[0148] The aforementioned bearing units 71a can be arranged in a plurality of spaces at predetermined intervals along the inner circumferential surface of the rotor 30 to form the lower bearing section 70a. In this case, the guide bearing 71a1 can be closely attached to the inner circumferential surface of the rotor 30, and the bearing support platform 71a2 can be provided on the base structure 10 without overlapping with the rotor 30 and the stator 20.

[0149] In this embodiment, a passageway 81 may be provided between the lower bearing section 70a and the stator 20 to facilitate the maintenance of the bearing unit 71a.

[0150] The passageway 81 can be ensured by forming the stator 20 with a smaller diameter than existing ones. For example, in the case where the diameter of the existing stator is 4 to 4.5 m, the stator 20 in this embodiment can ensure the passageway 81 by reducing the diameter to 2 to 2.5 m.

[0151] The overall diameter of stator 20 can be reduced, but as Figure 12 As shown, it is preferable to make the diameter of the upper part where the drive unit 60 is provided as large as the existing diameter, so as to provide space for mounting the drive unit 60 in the upper part.

[0152] Therefore, in the lower bearing section 70a of this embodiment, the bearing unit 71a is easy to manufacture, the number of installation tasks can be reduced by directly setting the bearing support platform 71a2 on the base structure 10, maintenance can be easily carried out by ensuring the passageway 81, and the stator 20 can be made lighter.

[0153] Figure 15 It is used for explanation Figure 2 A partial view of the wind propulsion system 1 of the second embodiment shown, with the lower bearing section 70. Figure 16 It is along Figure 15 A diagram cut along line A-A'. Figure 17 It is along Figure 16 The diagram is a cross-section of line B-B'.

[0154] like Figures 15 to 17 As shown, the lower bearing portion 70b of the second embodiment can be composed of an assembly of bearing units 71b and can be provided on the base structure 10.

[0155] The bearing unit 71b can be installed on the base structure 10 and can be composed of a guide bearing 71b1 and a bearing support platform 71b2.

[0156] The guide bearing 71b1 can be set at the upper end of the bearing support 71b2 and can guide the rotation of the rotor 30.

[0157] The bearing support platform 71b2 can support the guide bearing 71b1 located on its upper end and can be located on the base structure 10.

[0158] The aforementioned bearing units 71b can be arranged in a plurality of spaces at predetermined intervals along the inner circumferential surface of the rotor 30 to form the lower bearing section 70b. In this case, the guide bearing 71b1 can be closely attached to the inner circumferential surface of the rotor 30, and the bearing support platform 71b2 can be provided on the base structure 10 without overlapping with the stator 20.

[0159] In this embodiment, the stator 20 may have an open portion 82 with a predetermined interval formed at its lower end. By providing a bearing unit 71b in the open portion 82, the bearing unit 71b may be configured to overlap with the stator 20.

[0160] Therefore, in the lower bearing section 70b of this embodiment, the bearing unit 71b is easy to manufacture, the number of installation tasks can be reduced by directly setting the bearing support platform 71b2 on the base structure 10, and the bearing unit 71b can be easily maintained through the open section 82.

[0161] Figure 18 It is used for explanation Figure 2 A partial view of the wind propulsion system 1 of the third embodiment shown in the lower bearing section 70. Figure 19 This is a diagram illustrating the bearing unit 71c that constitutes the lower bearing portion 70c in the third embodiment. Figure 20 (a) through (c) are shown Figure 19 The diagram shows the bearing unit 71c positioned in the stator 20, where (a) is a top view, (b) is a front view, and (c) is a rear view.

[0162] like Figures 18 to 20 As shown, the lower bearing portion 70c of the third embodiment can be composed of an assembly of bearing units 71c and can be disposed on the stator 20.

[0163] The bearing unit 71c can be disposed on the stator 20, and can be composed of a guide bearing 71c1, a first connecting plate 71c2, and a second connecting plate 71c3. In this embodiment, the stator 20 can be provided with windows 83 at predetermined intervals at the positions where the bearing unit 71c is disposed.

[0164] The guide bearing 71c1 can be disposed on the first connecting plate 71c2 and can guide the rotation of the rotor 30.

[0165] The first connecting plates 71c2 can be configured in pairs and can be coupled to both ends of the bearing shaft 71c11 of the guide bearing 71c1. The pair of first connecting plates 71c2 can extend horizontally toward one side of the guide bearing 71c1 while coupled to the bearing shaft 71c11, and can have a shape that is vertically bent from the extended ends. A plurality of first bolt holes 71c21 for bolting into the second connecting plate 71c3 can be provided in the pair of first connecting plates 71c2.

[0166] The second connecting plate 71c3 can be provided on the inner side of the stator 20 along the edge of the window 83. In order to engage with a pair of first connecting plates 71c2, a plurality of second bolt holes 71c31 corresponding to the first bolt holes 71c21 can be provided. The second connecting plate 71c3 can have a shape that protrudes at least by a radius or less than that of the guide bearing 71c1.

[0167] The aforementioned bearing unit 71c can be bolted to the stator 20 using the first connecting plate 71c2 and the second connecting plate 71c3. A plurality of these units are arranged at predetermined intervals along the inner circumferential surface of the rotor 30 to form the lower bearing section 70c. In this case, as... Figure 20 As shown in (a) to (c), when fixed by the first connecting plate 71c2 and the second connecting plate 71c3, a portion of the guide bearing 71c1 can protrude outward through the window 83 of the stator 20 and fit tightly against the inner circumferential surface of the rotor 30.

[0168] Therefore, the lower bearing portion 70c of this embodiment can be easily manufactured by modularly manufacturing the bearing unit 71c, and the number of installation workers can be reduced. Furthermore, by being installed on the stator 20, structural stability can be ensured.

[0169] Figure 21 It is used for explanation Figure 2 A partial view of the wind propulsion system 1 of the fourth embodiment of the lower bearing section 70 shown. Figure 22 This is a diagram illustrating the bearing unit 71d that constitutes the lower bearing portion 70d of the fourth embodiment.

[0170] like Figures 21 to 22 As shown, the lower bearing portion 70d in the fourth embodiment can be composed of an assembly of bearing units 71d and can be disposed on the stator 20.

[0171] The bearing unit 71d can be disposed on the stator 20, and can be composed of a guide bearing 71d1 and a junction box 71d2. In this embodiment, the stator 20 can be provided with a window 84 at a predetermined interval at the position where the bearing unit 71d is disposed.

[0172] The guide bearing 71d1 can be installed in the junction box 71d2 and can guide the rotation of the rotor 30.

[0173] The junction box 71d2 can be provided on the inner side of the stator 20 along the edge of the window 84 to fix the guide bearing 71d1 in a state where a portion of the guide bearing 71d1 protrudes outward. The junction box 71d2 can be provided with a plurality of first bolt holes 71d21 for bolting with the stator 20.

[0174] The stator 20 can be provided with a window 84 at a predetermined interval at the position where the bearing unit 71d is provided. In order to be bolted together with the connector box 71d2, a second bolt hole 71d22 corresponding to the first bolt hole 71d21 can be provided along the edge of the window 84.

[0175] The aforementioned bearing unit 71d can be bolted to the stator 20 via the connector box 71d2. A plurality of such units are arranged at predetermined intervals along the inner circumferential surface of the rotor 30 to form the lower bearing section 70d. At this time, with the connector box 71d2 fixed to the stator 20, a portion of the guide bearing 71d1 can protrude outward through the window 84 of the stator 20 and fit tightly against the inner circumferential surface of the rotor 30.

[0176] Therefore, the lower bearing portion 70d of this embodiment can be easily manufactured by modularly manufacturing the bearing unit 71d, which can reduce the number of installation workers, and by setting it on the stator 20, structural stability can be ensured.

[0177] Figure 23 It is used for explanation Figure 2 A partial view of the wind propulsion system 1 of the fifth embodiment of the lower bearing section 70 shown. Figure 24 It is along Figure 23 A diagram cut along line A-A'. Figure 25 It is along Figure 24 The diagram is a cross-section of line B-B'.

[0178] like Figures 23 to 25 As shown, the lower bearing portion 70e of the fifth embodiment can be composed of a single bearing unit 71e and can be disposed on the stator 20.

[0179] The bearing unit 71e can be disposed on the stator 20 and can be composed of a guide bearing 71e1 and a guide rail 71e2.

[0180] The guide bearing 71e1 can be arranged along the outer circumferential surface of the stator 20 and can guide the rotation of the rotor 30.

[0181] The guide bearing 71e1 can be a single bearing in the form of a ring, such as a journal type or a ball / roller type bearing.

[0182] Considering that the ring-shaped guide bearing 71e1 is currently the largest bearing capable of being installed in a structure with a diameter of 2.5m, the diameter of the stator 20 can be at least less than 2.5m. Such a stator 20 as a whole can have a diameter of less than 2.5m, however, as... Figure 23 As shown, the diameter of the upper part where the drive unit 60 is provided can preferably be as large as the existing diameter (e.g., 4 to 4.5 m) to provide space for the drive unit 60 to be provided in the upper part.

[0183] The guide rail 71e2 can be formed along the inner circumferential surface of the rotor 30 at a position corresponding to the ring-shaped guide bearing 71e1, and can guide the guide bearing 71e1. At this time, the guide rail 71e2 can achieve various protrusion heights, which can be determined according to the diameter of the rotor 30.

[0184] That is, when the diameter of the stator 20 is 2.5m, the minimum diameter of the rotor 30 can correspond to the diameter of the guide bearing 71e1 provided on the outer circumferential surface of the stator 20, and the maximum diameter of the rotor 30 can be determined according to the protrusion height of the guide rail 71e2.

[0185] Generally speaking, the larger the diameter of the rotor 30, the stronger the wind propulsion capability. Therefore, in this embodiment, even if the diameter of the rotor 30 is increased to the desired size, the function of the lower bearing section 70e can be performed by adjusting the protrusion height of the guide rail 71e2.

[0186] Such a guide rail 71e2 can be manufactured separately and set on the inner circumferential surface of the rotor 30, or it can be manufactured as an integral part of the rotor 30.

[0187] Therefore, in this embodiment, the lower bearing section 70e can ensure structural stability by using a single ring-shaped bearing as a guide bearing 71e1 on the stator 20, and the size of the rotor 30 can be changed to the required size by adjusting the height of the guide rail 71e2, thereby easily improving wind propulsion performance.

[0188] Figure 26 It is used for explanation Figure 2 A partial view of the wind propulsion system 1 of the sixth embodiment of the lower bearing section 70 shown. Figure 27 It is along Figure 26 The diagram is a cross-section of line A-A'.

[0189] like Figures 26 to 27 As shown, the lower bearing portion 70f of the sixth embodiment can be composed of an assembly of bearing units 71f and can be disposed on the rotor 30.

[0190] The bearing unit 71f can be installed on the rotor 30 and can be composed of a guide bearing 71f1, an arm 71f2, and a guide rail 71f3.

[0191] The guide bearing 71f1 can be located on one side of the arm 71f2 and can guide the rotation of the rotor 30.

[0192] The arm 71f2 can be disposed on the inner circumferential surface of the rotor 30. The arm 71f2 can be of variable length, folding type, or fixed type. When the arm 71f2 is of variable length, its length can be adjusted manually, similar to a telescope or tent pole.

[0193] The guide rail 71f3 can be formed along the outer circumferential surface of the stator 20 and can guide the guide bearing 71f1. At this time, the guide rail 71f3 can achieve various protrusion heights, which can be determined according to the diameter of the stator 20 or the rotor 30.

[0194] For example, when the diameter of the rotor 30 is fixed, changing the diameter of the stator 20 allows the lower bearing section 70f to function by adjusting the protrusion height of the guide rail 71f3 according to the changed diameter. Similarly, the same applies when changing the diameter of the rotor 30 while the diameter of the stator 20 is fixed.

[0195] Such a guide rail 71f3 can be manufactured separately and set on the outer peripheral surface of the stator 20, or it can be manufactured as an integral part of the stator 20.

[0196] Therefore, in this embodiment, the lower bearing portion 70f can be adjusted by adjusting the height of the guide rail 71f3 to manufacture the rotor 30 or stator 20 to the required size, thereby easily improving wind propulsion performance.

[0197] As described above, the wind propulsion system 1 of the present invention refers to Figures 3 to 27 Through various embodiments Figure 2 The stator 20, rotor 30, end plate 40, disk 50, drive unit 60, and lower bearing unit 70 shown have been described, but are not limited to embodiments of each component. They may include combinations of the above embodiments or combinations of at least one of the above embodiments and known technologies as another embodiment.

[0198] The present invention has been described above with reference to embodiments thereof, but these are merely examples and do not limit the invention. Those skilled in the art will recognize that various combinations, modifications, and applications not shown in the embodiments can be implemented without departing from the essential technical content of these embodiments. Therefore, any modifications and applications readily derived from the embodiments of the present invention should be interpreted as included within the scope of the present invention.

[0199] Explanation of reference numerals in the attached figures

[0200] 1: Wind propulsion system; 10: Basic structure

[0201] 20: Stator; 30, 30a, 30b: Rotor

[0202] 31a: Unit panel; 31a1: Curved panel

[0203] 31a2: Female connector; 31a21: First board

[0204] 31a22: Second board 31a23: Third board

[0205] 31a21: Fourth board; 31a3: Male connector

[0206] 31a31: Fifth board 31a32: Sixth board

[0207] 31a4: Insertion space; 31b: Lower rotor

[0208] 31b1: First edge panel; 32b: Upper rotor

[0209] 32b1: Second edge panel; 33b: Connecting component

[0210] 33b1: First clamping plate; 33b2: Second clamping plate

[0211] 33b3: First bolt member; 33b4: Second bolt member

[0212] 33b5: First adhesive component; 33b6: Second adhesive component

[0213] 40, 40a: End plate; 41a: Circular plate

[0214] 42a: Reinforcing rib; 43a: Central area

[0215] 44a: Outer area 50: Disk

[0216] 60, 60a, 60b, 60c: Drive unit; 61a, 61c: Motor

[0217] 62a, 62c: Gearboxes; 63a, 63c: Drive shafts

[0218] 64a, 64c: Drive gears; 65a, 65c: Driven gears

[0219] 66a, 66c: Driven shafts; 66a1: First driven shaft

[0220] 66a2: Second driven shaft; 67a, 67b: Bearing housing

[0221] 68a: Coupling component

[0222] 70, 70a, 70b, 70c, 70d, 70e, 70f: Lower bearing section

[0223] 71a, 71b, 71c, 71d, 71e, 71f: Bearing units

[0224] 71a1, 71b1, 71c1, 71d1, 71e1, 71f1: Guide bearings

[0225] 71c11: Bearing shaft; 71a2, 71b2: Bearing support platform

[0226] 71c2: First connecting plate; 71c21: First bolt hole

[0227] 71c3: Second connecting plate; 71c31: Second bolt hole

[0228] 71d2: Junction box; 71d21: First bolt hole

[0229] 71d22: Second bolt hole; 71e2: Guide rail

[0230] 71f2: Arm; 71f3: Guide rail

[0231] 81: Passageway 82: Open Section

[0232] 83, 84: Windows B1 to B11: Bearings 1 to 11

[0233] S: Ship; L: Lifting device

Claims

1. A wind-powered propulsion system, in, include: The stator is vertically mounted on the deck; The rotor, surrounding the outer side of the stator, is configured in a cylindrical shape; The motor is located inside the stator; A gearbox, connected to the motor, to reduce the speed of the motor; The driven shaft, through the gearbox, transmits the rotational force from the motor to the rotor via a disk connected to the rotor; and A lower bearing section is provided at the lower part of the rotor to suppress lateral movement of the rotor. The lower bearing section includes: The joint is composed of an assembly of bearing units, at least a portion of which is provided on the inner side of the stator along the edge of a window spaced at a predetermined interval from the position where the bearing units are provided, and supports the guide bearing that guides the rotation of the rotor on the stator. The joint includes: The first coupling plate, consisting of a pair, engages with both ends of the bearing shaft of the guide bearing; and The second connecting plate is disposed on the inner side of the stator along the edge of the window and is combined with the first connecting plate; The first connecting plate extends horizontally toward one side of the guide bearing while connected to the bearing shaft, and has a shape that is bent vertically from the extended end, and is provided with a plurality of first bolt holes for bolting with the second connecting plate; The second bonding plate includes: Two horizontal sections, each formed in a flat plate shape, are positioned separately on the inner surface of the stator in the vertical direction of the window, thereby forming a horizontal plane; and A plurality of vertical portions, each having one end perpendicularly joined to two horizontal portions, and the other end of each of the plurality of vertical portions joined to the inner surface of the stator, thereby joining the two horizontal portions to the stator; Each of the two horizontal sections is provided with a plurality of second bolt holes corresponding to a plurality of the plurality of first bolt holes.

2. The wind propulsion system according to claim 1, wherein, The second joint plate has a shape that protrudes at least by the radius of the guide bearing or less.

3. The wind propulsion system according to claim 1, wherein, The gearbox includes: The drive shaft that is rotated by the motor; A drive gear disposed on the drive shaft; and A driven gear that meshes with and rotates with the driving gear; The gearbox is disposed inside the stator; The driven shaft includes: A first driven shaft that engages with and supports the rotation of the driven gear; and A second driven shaft, connected to the first driven shaft via a coupling member, transmits rotational force to the disk.

4. The wind propulsion system according to claim 3, wherein, It also includes: a bearing housing that rotatably supports the second driven shaft. The bearing housing is disposed on the inner side of the top surface of the stator, or on the outer side of the top surface of the stator.

5. The wind propulsion system according to claim 3, wherein, The upper part of the drive shaft is rotatably connected to the top surface of the gearbox using a first bearing. The lower part of the drive shaft is rotatably connected to the bottom surface of the gearbox using a second bearing. The first bearing and the second bearing are bearings that prevent lateral force or lateral vibration of the drive shaft.

6. The wind propulsion system according to claim 3, wherein, The upper part of the first driven shaft is rotatably connected to the top surface of the gearbox using a third bearing. The lower part of the first driven shaft is rotatably connected to the bottom surface of the gearbox using a fourth bearing. The third and fourth bearings are bearings that prevent lateral forces on the first driven shaft.

7. The wind propulsion system according to claim 3, wherein, The second driven shaft is rotatably coupled to the top surface of the stator using a fifth and a sixth bearing arranged in series. The fifth bearing is a bearing that prevents axial force on the second driven shaft. The sixth bearing is a bearing that prevents lateral forces on the second driven shaft.

8. The wind propulsion system according to claim 1, wherein, The rotor includes: The lower rotor has a first edge panel in the shape of an annular shape at its upper end, extending inward to a predetermined length and having a space to accommodate the disk; and The upper rotor has a second edge panel with an annular shape at its lower end, which extends inward to a predetermined length and has a space to accommodate the disk.

9. The wind propulsion system according to claim 8, wherein, The rotor includes: The connecting component combines the lower rotor, the upper rotor, and the disk; The connecting component includes: A first clamping plate clamps the bottom surface of the first edge panel and the bottom surface of the disk; The second clamping plate clamps the top surface of the first edge panel and the top surface of the disk; A first bolt component secures the first clamping plate, the second clamping plate, and the disc; and The second bolt component secures the first edge panel and the second edge panel.

10. The wind propulsion system according to claim 9, wherein, The connecting component further includes: A first adhesive member is disposed between the first edge panel and the second clamping plate; and The second adhesive member is disposed between the second edge panel and the second clamping plate.

11. The wind propulsion system according to claim 9, wherein, The land-based infrastructure is lifted onto the deck using a lifting device. On land, the disk and the drive unit, including the motor, the gearbox, and the driven shaft, are mounted on the upper part of the stator. The lower rotor is lifted using the lifting device, and the stator is housed inside the lower rotor. The lower rotor is connected to the disk using the connecting member. The lower rotor, which houses the stator, is mounted onto the base structure using the lifting device. The lifting device is used to align the upper rotor on land with the upper part of the lower rotor mounted on the foundation structure. The lower rotor is connected to the upper rotor using the connecting member.

12. A vessel having a wind propulsion system according to any one of claims 1 to 11.

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