KR102630854B1 - Wind-propelled System and Ship having the same - Google Patents

Abstract

The present invention relates to a wind propulsion system and a ship equipped with the same. The wind propulsion system of the present invention includes a stator provided perpendicular to the deck; a rotor provided in a cylindrical shape to surround the outside of the stator; a driving unit that transmits rotational power to the rotor through a disk connected to the rotor; and a lower bearing part installed at the lower part of the rotor to suppress lateral movement of the rotor, wherein the lower bearing part is composed of a collection of bearing units and may be installed on the stator.

Description

Wind-propelled system and ship equipped with the same {Wind-propelled System and Ship having the same}

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

Ships usually use fossil fuels for propulsion. The ship is equipped with a high-power engine to drive thrusters, etc., and the amount of fuel consumed by large ships during long-distance navigation is known to amount to hundreds of tons. It costs a huge amount of money to operate these ships, and the emission of pollutants due to fuel consumption is also a very serious problem.

To solve this problem, it is desirable to diversify the power sources of ships. For example, electric propulsion ship technology that obtains part of the propulsion from electric motors has been developed and applied, and in addition, technologies that obtain electricity using various environmental conditions that ships experience at sea are being developed.

Furthermore, the use of solar energy and wind power as natural energy that does not generate any emissions is also attracting attention. In particular, in the case of wind power, it has the advantage of simple structure and low maintenance costs in that wind power can be easily converted into propulsion by installing equipment such as a sail on the deck.

In addition, recently, unlike the generally known sail, a rotor facility (for example, a magnus rotor) that can directly rotate using power and convert wind power into propulsion in the desired direction has been installed on a sailboat. This rotor facility consists of a stator fixed to the deck, and a rotor that is provided in a cylindrical shape to surround the surface and upper surface of the stator and whose rotation speed and direction are controlled.

Much research and development has been conducted recently on these rotor facilities because, unlike sails, they can process wind power into desired propulsion. However, since the rotor facility is in the form of a large pillar with a diameter of several meters and a height of several tens of meters, there are still problems that need to be solved/improved in terms of installation within the deck, durability due to ship movement, interference with forward vision, and control. A number of problems remain. The technology behind the present invention is described in U.S. Patent Publication No. US4602584, Publication No. 10-2013-0052024, Publication No. 10-2016-0087844, and Publication No. 10-2009-0016607.

The present invention was created to solve the problems of the prior art as described above. The purpose of the present invention is to improve the structural performance of the rotor and facilitate its manufacture, secure the structural stability of the driving part that drives the rotor, and The aim is to provide a wind power propulsion system and a ship equipped with the same, which facilitates the structural stability and maintenance of the lower bearing part installed between the electron and the stator, and ensures structural stability by reducing the weight of the end plate.

A wind propulsion system according to one aspect of the present invention includes a stator provided perpendicular to the deck; a rotor provided in a cylindrical shape to surround the outside of the stator; a driving unit that transmits rotational power to the rotor through a disk connected to the rotor; and a lower bearing part installed at the lower part of the rotor to suppress lateral movement of the rotor, wherein the lower bearing part is composed of a collection of bearing units and may be installed on the stator.

Specifically, the stator has a window provided at a certain interval at a position where the bearing unit is installed, and the bearing unit includes a guide bearing that guides the rotation of the rotor; A first joint plate consisting of a pair and coupled to both ends of the bearing shaft of the guide bearing; And it may include a second joint plate installed along an edge of the window inside the stator and coupled to the first joint plate.

Specifically, the first joint plate extends horizontally to one side of the guide bearing while coupled to the bearing shaft, has a vertically bent shape at the extended end, and is a first joint plate for bolting connection with the second joint plate. 1. A plurality of bolting holes are provided, and the second joint joint plate has a protruding shape at least in size equal to or smaller than the radius of the guide bearing, and a plurality of second bolting holes corresponding to the first bolting hole are provided. It can be.

Specifically, the stator has a window provided at a certain interval at a position where the bearing unit is installed, and the bearing unit includes a guide bearing that guides the rotation of the rotor; and a joint box installed along an edge of the window inside the stator and fixing the guide bearing with a portion of the guide bearing protruding to the outside.

A wind propulsion system according to another aspect of the present invention includes a stator provided perpendicular to the deck; a rotor provided in a cylindrical shape to surround the outside of the stator; a driving unit that transmits rotational power to the rotor through a disk connected to the rotor; and a lower bearing part installed at the lower part of the rotor to suppress lateral movement of the rotor, wherein the lower bearing part is composed of a single bearing unit and may be installed on the stator.

Specifically, the bearing unit includes a guide bearing installed along the outer peripheral surface of the stator and guiding the rotation of the rotor; And it is formed along the inner peripheral surface of the rotor at a position corresponding to the guide bearing, and may include a guide rail that guides the guide bearing.

Specifically, the guide bearing is a single ring-shaped bearing and may be a journal type or ball/roller type bearing.

Specifically, the diameter of the lower part of the stator where the guide bearing is installed may be relatively smaller than the diameter of the upper part where the driving unit is installed.

A ship according to another aspect of the present invention is characterized by including the wind propulsion system described above.

The wind propulsion system according to the present invention can improve the structural performance and manufacture of the rotor, secure the structural stability of the driving part that drives the rotor, and secure the lower bearing part installed between the rotor and the stator. Structural stability can be secured and maintenance can be facilitated, and structural stability can be secured by reducing the weight of the end plate.

Figure 1 is a diagram showing a ship equipped with a wind propulsion system according to an embodiment of the present invention.
Figure 2 is a diagram for explaining a wind power propulsion system according to an embodiment of the present invention.
FIG. 3 is a diagram for explaining the first embodiment of the rotor shown in FIG. 2.
Figure 4 is a diagram for explaining the unit panel constituting the rotor of the first embodiment.
FIG. 5 is a diagram for explaining a second embodiment of the rotor shown in FIG. 2.
Figure 6 is a diagram for explaining a coupling member connecting the lower rotor and the upper rotor constituting the rotor of the second embodiment.
Figures 7 (a) to (d) are diagrams for explaining the rotor mounting process of the second embodiment.
FIG. 8 is a diagram for explaining the first embodiment of the end plate shown in FIG. 2.
FIG. 9 is a diagram for explaining the first embodiment of the driving unit shown in FIG. 2.
FIG. 10 is a diagram for explaining a second embodiment of the driving unit shown in FIG. 2.
FIG. 11 is a diagram for explaining a third embodiment of the driving unit shown in FIG. 2.
FIG. 12 is a partial diagram of a wind power propulsion system for explaining the first embodiment of the lower bearing shown in FIG. 2.
FIG. 13 is a view cut along line A-A' of FIG. 12.
FIG. 14 is a view cut along line B-B' in FIG. 13.
FIG. 15 is a partial diagram of a wind power propulsion system for explaining the second embodiment of the lower bearing shown in FIG. 2.
FIG. 16 is a view cut along line A-A' of FIG. 15.
FIG. 17 is a view cut along line B-B' of FIG. 16.
FIG. 18 is a partial diagram of a wind power propulsion system for explaining the third embodiment of the lower bearing shown in FIG. 2.
Figure 19 is a diagram for explaining a bearing unit constituting the lower bearing part of the third embodiment.
Figures 20 (a) to (c) are diagrams showing the bearing unit of Figure 19 installed on the stator.
FIG. 21 is a partial diagram of a wind power propulsion system for explaining the fourth embodiment of the lower bearing portion shown in FIG. 2.
Figure 22 is a diagram for explaining the bearing unit constituting the lower bearing part of the fourth embodiment.
FIG. 23 is a partial diagram of a wind power propulsion system for explaining the fifth embodiment of the lower bearing portion shown in FIG. 2.
FIG. 24 is a view cut along line A-A' of FIG. 23.
FIG. 25 is a view cut along line B-B' in FIG. 24.
FIG. 26 is a partial diagram of a wind power propulsion system for explaining the sixth embodiment of the lower bearing portion shown in FIG. 2.
FIG. 27 is a view cut along line A-A' of FIG. 26.

The objectives, specific advantages and novel features of the present invention will become more apparent from the following detailed description and preferred embodiments taken in conjunction with the accompanying drawings. In this specification, when adding reference numbers to components in each drawing, it should be noted that identical components are given the same number as much as possible even if they are shown in different drawings. Additionally, in describing the present invention, if it is determined that a detailed description of related known technologies may unnecessarily obscure the gist of the present invention, the detailed description will be omitted.

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

Figure 1 is a diagram showing a ship (S) equipped with a wind power propulsion system (1) according to an embodiment of the present invention, and Figure 2 illustrates a wind power propulsion system (1) according to an embodiment of the present invention. This is a drawing for

As shown in Figures 1 and 2, at least one wind power propulsion system (1) according to an embodiment of the present invention is provided on the deck of the ship (S), and rotates directly using power to direct wind power in the desired direction. It can be converted into driving force and can include a basic structure (10), a stator (20), a rotor (30), an end plate (40), a disk (50), a driving part (60), and a lower bearing part (70). there is.

The basic structure 10 is fixedly installed on the deck, and a stator 20 may be installed on the top.

The stator 20 may be provided perpendicularly on the basic structure 10 fixed on the deck and may form the axis of the rotor 30.

This stator 20 may be a cylindrical structure with an empty interior, and a driving unit 60 may be mounted on the top.

The rotor 30 is a structure provided in the form of a cylinder to surround the outside of the stator 20, has the stator 20 installed/fixed on the deck of the ship (S) as its axis, and is powered by the drive unit 60. With this addition, it can rotate 360 degrees. At this time, due to hydrodynamic interference between the wind around the ship (S) and the cylindrical rotor (30), the wind may be converted into the propulsion force of the ship (S).

That is, the rotor 30 can be rotated by transmitting the power of the driving unit 60 through the disk 50. At this time, as the rotor 30 rotates about the stator 20, which is the central axis in the vertical direction, increased pressure is generated on one side and decreased pressure/suction is generated on the other side, so that one side and the other of the rotor 30 Positive pressure and negative pressure are generated on each of the opposite sides, which can generate propulsion as a force to move the ship 100.

In addition, the direction in which positive pressure and negative pressure are formed may be different depending on the direction of the rotor 30, so the direction of the rotor 30 is rotated clockwise or counterclockwise to operate the ship (S). You can also control direction.

Of course, the ship of this embodiment is not limited to the propulsion force being formed by driving the rotor 30, and may of course be combined with the conventional embodiment. For example, when the main operation of the ship (S) is by the main engine (not shown) and rudder, the rotor 30 may play an auxiliary role. In contrast, as the operation by the rotor 30 may be performed as the main operation and the operation of the ship (S) by the main engine and rudder may be auxiliary, the operation of the rotor 30 may be operated as needed in various situations. It can be done.

The rotor 30 is rotatably connected to the lower bearing part 70 installed at the lower part, and receives the power of the driving part 60 installed at the upper part of the stator 20, and provides a rotational force (a disk ( 50).

The rotor 30 may have an open upper end, and an end plate 40 may be installed in the open portion.

The disk 50 may have a shape corresponding to the inner peripheral surface of the rotor 30, for example, a disk shape, and its outer peripheral surface may be fixedly connected to the inner peripheral surface of the rotor 30. The disk 50 is connected to the drive unit 60 and receives the power of the drive unit 60 to provide rotational force to the rotor 30.

The driving unit 60 may be installed on the upper part of the stator 20 and connected to the disk 50. This driving unit 60 can generate power to rotate the rotor 30 and transmit the rotational force to the rotor 30 through the disk 50.

The lower bearing unit 70 may be installed at the lower part of the rotor 30. The lower bearing unit 70 may be configured to suppress lateral movement when the rotor 30 rotates with the power of the driving unit 60.

As described above, the wind power 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, each configuration of the wind power propulsion system 1 will be described in detail with reference to FIGS. 3 to 27.

The rotor 30 shown in FIG. 2 is a cylindrical structure with an empty interior, and can be implemented in various embodiments. Hereinafter, the rotor 30a of the first embodiment will be described with reference to FIGS. 3 and 4. The description will be made with reference to, and the rotor 30a of the second embodiment will be described with reference to FIGS. 5 to 7.

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

As shown in FIGS. 3 and 4, the rotor 30a of the first embodiment may be composed of a plurality of unit panels 31a combined.

The unit panel 31a may be formed to have a certain width, length, and thickness by pultrusion using glass fiber, carbon fiber, or various composite materials.

The unit panel 31a may be configured to enable interference fit with other neighboring unit panels 31a.

As shown in FIG. 4, the unit panel 31a includes a curved plate 31a1 that has a curved shape in the width direction and extends in the longitudinal direction, and a female connector 31a2 provided along one edge of the curved plate 31a1. ) and a male connector (31a3) provided along the other edge of the curved plate (31a1). The thickness of each of the curved plate 31a1, female connector 31a2, and male connector 31a3 forming 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 30a.

The female connector 31a2 and the male connector 31a3 may have various structures that enable interference fit between neighboring unit panels 31a.

For example, the female connector 31a2 includes a first plate 31a21 bent and extending from one end of the curved plate 31a1 toward the inside of the rotor 30a, and an extended end of the first plate 31a21. A second plate (31a22) bent and extended in the outward direction of the curved plate (31a1), and a third plate (31a22) bent and extended from the extended end of the second plate (31a22) in the outward direction of the rotor (30a) 31a23) and a fourth plate 31a24 that is bent and extended from the extended end of the third plate 31a23 toward the inside of the curved plate 31a1, and is formed by the first to fourth plates 31a24. An 'ㄱ' shaped fitting space (31a4) corresponding to the shape of the male connector (31a3) may be formed. At this time, the male connector 31a3 is bent and extended from the other end of the curved plate 31a1 in the inner direction of the rotor 30a so as to correspond to the 'ㄱ' shaped fitting space 31a4 of the female connector 31a2. It may be composed of a fifth plate 31a31 and a sixth plate 31a32 that is bent and extended from an extended end of the fifth plate 31a31 toward the inside of the curved plate 31a1.

Through this, the rotor 30a of this embodiment can be formed in the form of a cylinder with an empty interior by an interference fit coupling method using the unit panel 31a configured as above, so that the rotor 30a can be formed in the form of a cylinder with an empty interior compared to the adhesive coupling method or bolting coupling method. The process can be simplified.

In addition, the rotor 30a of this embodiment is manufactured by pultrusion using the unit panel 31a using glass fiber, carbon fiber, or various composite materials, thereby reducing manufacturing costs through simplification of the manufacturing process and reducing weight. It can be achieved.

In addition, in the rotor 30a of this embodiment, the interference fitting portion of the female connector 31a2 and the male connector 31a3 is thicker than the curved plate 31a1, so that it can naturally serve as a reinforcement in the longitudinal direction, reinforcing. It can be more economical than the existing sandwich manufacturing method that injects resin, etc. into the inside.

FIG. 5 is a diagram for explaining the second embodiment of the rotor 30 shown in FIG. 2, and FIG. 6 shows the lower rotor 31b and the upper rotor constituting the rotor 30b of the second embodiment. It is a drawing for explaining the coupling member 33b connecting (32b), and Figures 7 (a) to (d) are drawings for explaining the mounting process of the rotor 30b of the second embodiment.

As shown in FIGS. 5 to 7, the rotor 30b of the second embodiment has a two-stage assembly structure in which the lower rotor 31b and the upper rotor 32b are assembled by a coupling member 33b. It can be configured.

Each of the lower rotor 31b and the upper rotor 32b may be a cylindrical structure with an empty interior, and may be formed of the same material and shape.

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

At the top of the lower rotor (31b), a ring-shaped first edge panel (31b1) is provided that extends inward for a certain length and has a space for accommodating the disk 50, and at the bottom of the upper rotor (32b) is provided inward. A ring-shaped second edge panel 32b1 extending to a certain length and having a space for accommodating the disk 50 may be provided.

The coupling member 33b accommodates the stator 20, on which the disk 50 and the driving unit 60 are installed, inside the lower rotor 31b, and aligns the first edge panel 31b1 with the disk 50. In this state, the lower rotor (31b) and the disk 50 can be combined, and in the state in which the lower rotor (31b) and the disk 50 are combined, the first edge panel (31b1) of the lower rotor (31b) and the second edge panel (32b1) of the upper rotor (32b) can be combined.

Specifically, the coupling member 33b includes a first clamping plate 33b1 that holds the lower surface of the first edge panel 31b1 and the lower surface of the disk 50, the upper surface of the first edge panel 31b1 and the disk ( A second clamping plate (33b2) that holds the upper surface of 50), a first bolting member (33b3) that secures the first and second clamping plates (33b1, 33b2) and the disk 50, and a lower rotor (31b) It may include a second bolting member (33b4) for fixing the second edge panel (32b1) of the upper rotor (32b) on the first edge panel (31b1).

In the above, the first bolting member 33b3 can couple the lower rotor 31b and the disk 50 by fixing the first clamping plate 33b1, the disk 50, and the second clamping plate 33b2. , the second bolting member (33b4) secures the first clamping plate (33b1), the first edge panel (31b1), the second clamping plate (33b2), and the second edge panel (32b1) to the lower rotor (31b). The upper rotor (32b) can be combined.

In addition, the coupling member 33b includes a first bonding member 33b5 provided between the first edge panel 31b1 and the second clamping plate 33b2 of the lower rotor 31b, and the upper rotor 32b. It may further include a second bonding member (33b6) provided between the second edge panel (32b1) and the second clamping plate (33b2). Here, the first and second bonding members 33b5 and 33b6 may be various adhesives or adhesive films applied or attached.

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

First, as shown in (a) of FIG. 7, the land-based basic structure 10 is mounted on the deck of the ship (S) using the lifting device (L). The lifting device L here may be a tower crane, a gantry crane or any suitable lifting means known to those skilled in the art.

As shown in (b) of FIG. 7, the disk 50 and the drive unit 60 are installed on the upper part of the stator 20 on land, and the lower rotor 31b is lifted with the lifting device L to move the inner part. The stator 20 is accommodated in, and the lower rotor 31b and the disk 50 are coupled using the coupling member 33b.

As shown in (c) of FIG. 7, the lower rotor (31b) in which the stator (20) is accommodated is mounted on the basic structure (10) fixed to the deck using a lifting device (L).

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

Through this, the rotor (30b) of this embodiment is configured as a two-stage assembly structure in which the lower rotor (31b) and the upper rotor (32b) are assembled by the coupling member (33b), thereby enabling assembly through the implementation of a two-stage connection structure. In addition to streamlining the process, the weight and height requirements of the crane can be improved.

The end plate 40 shown in FIG. 2 is installed at the open upper part of the rotor 30 and can be implemented in various embodiments. Hereinafter, the end plate 40a of the first embodiment is shown in FIG. 8. This will be explained with reference to .

FIG. 8 is a diagram for explaining the 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 made of a disk 41a and a stiffener 42a, and may be made of glass fiber reinforced plastic (GFRP) or carbon fiber reinforced plastic (CFRP). It can be.

The disk 41a can be divided into a central area 43a and an outer area 44a. The central area 43a may be an area corresponding to the open upper part of the rotor 30, and the outer area 44a may be an area extending to the outside of the rotor 30, but are not limited thereto.

The central area 43a and the outer area 44a of the original plate 41a may not be the same. For example, the central area 43a of the disc 41a may be GFRP-2AXIS 10t in the radial direction, and the outer area 44a of the disc 41a may be GFRP-UD 30t in the radial direction.

The stiffeners 42a are for reinforcing the central area 43a of the disc 41a, and may be formed in plural pieces extending radially from the center of the disc 41a to the edge of the central area 43a, and may be formed in a plurality of lengths. The direction may be GFRP-UD 10t.

In the above, the fiber direction and thickness values of the original plate 41a and the stiffener 42a are only examples, and of course, various stacking patterns and thicknesses can be applied.

Through this, 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 wind power propulsion system 1 by reducing the weight of the end plate 40a. You can do it.

The driving unit 60 shown in FIG. 2 is installed on the upper part of the stator 20 and generates power to rotate the rotor 30, and can be implemented in various embodiments. Hereinafter, the first The driving unit 60a of the embodiment will be explained with reference to FIG. 9, the driving unit 60b of the second embodiment will be explained with reference to FIG. 10, and the driving unit 60c of the third embodiment will be explained with reference to FIG. 11.

FIG. 9 is a diagram for explaining the first embodiment of the driving unit 60 shown in FIG. 2.

As shown in FIG. 9, the driving unit 60a of the first embodiment includes a motor 61a, a gearbox 62a, a driving shaft 63a, a driving gear 64a, a driven gear 65a, and a driven shaft 66a. ), may include a bearing housing (67a).

The motor 61a generates driving force and transmits it to the gearbox 62a, and may be installed inside the stator 20.

The gearbox 62a is combined with the motor 61a and has various gears built in to transmit the driving force necessary to rotate the drive shaft 63a, and may be installed inside the stator 20. Gearbox 62a may be a reducer.

Inside the gearbox 62a of this embodiment, a drive shaft 63a coupled to the motor 61a and rotated by the motor 61a, a drive gear 64a provided on the drive shaft 63a, and a drive gear 64a A driven gear 65a that rotates in mesh with and a driven shaft 66a coupled to the driven gear 65a to support the rotation of the driven gear 65a may be provided.

The driving gear 64a and the driven gear 65a may be reduction gears with a reduction ratio of 6:1, but are not limited to this, and of course, reduction gears with various reduction ratios can be applied.

The driven shaft 66a may be composed of a first driven shaft 66a1 and a second driven shaft 66a2.

In this case, the first driven shaft 66a1 is installed inside the gearbox 62a, the lower part is rotatably coupled to the lower surface of the gearbox 62a, and the upper part penetrates the upper surface of the gearbox 62a to the outside. It can be installed to protrude and be coupled to the second driven shaft (66a2).

The second driven shaft 66a2 is installed outside the gearbox 62a, the lower part is coupled to the upper part of the first driven shaft 66a1 by the coupling member 68a, and the upper part is attached to the stator 20. It can be installed to penetrate the upper surface and be coupled to the disk 50. The second driven shaft 66a2 is connected to the first driven shaft 66a1 and can transmit rotational force to the disk 50.

Each of the drive shaft 63a, the first driven shaft 66a1, and the second driven shaft 66a2 can be rotated by various bearings.

Specifically, the drive shaft 63a may have its upper part rotatably coupled to the upper surface of the gearbox 62a by the first bearing (B1), and its lower part by the second bearing (B2) to the gearbox (62a). It can be rotatably coupled to the bottom of the.

In this embodiment, the drive shaft 63a is a shaft that rotates with the driving force of the motor 61a and is not a shaft to which a lot of axial force is applied. In this case, the first and second bearings B1 and B2 are the drive shaft 63a. ) or a bearing that can prevent the drive shaft 63a from moving laterally, for example, a self-aligning bearing, can be applied.

The first driven shaft 66a1 may have its upper part rotatably coupled to the upper surface of the gearbox 62a by the third bearing B3, and its lower part by the fourth bearing B4 to the gearbox 62a. It can be rotatably coupled to the bottom of the.

In this embodiment, the first driven shaft 66a1 is not a shaft on which much axial force is applied because the driving force is not transmitted directly from the motor 61a or directly to the disk 50, so in this case, the first driven shaft 66a1 The 3 and 4 bearings (B3, B4) can be used as bearings that can prevent lateral force of the first driven shaft (66a1), for example, self-aligning bearings.

The second driven shaft 66a2 may be rotatably coupled to the upper surface of the stator 20 by the fifth bearing B5 and sixth bearing B6 arranged in series.

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

As described above, since a lot of axial force and lateral force are applied to the second driven shaft (66a2), the fifth bearing (B5) and sixth bearing (B6) arranged in series are installed in the stator (20) to withstand the axial force and lateral force. It is difficult to bind tightly to.

Accordingly, in this embodiment, the bearing housing 67a can be fixedly installed inside the upper surface of the stator 20 as a means of holding the second driven shaft 66a2. The bearing housing 67a is penetrated by the second driven shaft 66a2 and can accommodate the fifth and sixth bearings B5 and B6. By fixing the bearing housing 67a to the inside of the upper surface of the stator 20, the second driven shaft 66a2 can withstand axial force and lateral force through the bearing housing 67a.

FIG. 10 is a diagram for explaining the second embodiment of the driving unit 60 shown in FIG. 2.

As shown in FIG. 10, the driving unit 60b of the second embodiment includes a motor 61a, a gearbox 62a, a driving shaft 63a, a driving gear 64a, a driven gear 65a, and first and second gears. It may include a driven shaft (66a) consisting of driven shafts (66a1, 66a2), a bearing housing (67b), and a coupling member (68a).

The drive unit 60b of the second embodiment has a different installation position of the bearing housing 67b compared to the drive unit 60a of the first embodiment described above.

That is, the bearing housing 67b of this embodiment is installed on the outside of the upper surface of the stator 20, and the bearing housing 67a of the first embodiment described above is different in that it is installed on the inside of the upper surface of the stator 20, and the remaining configurations The elements are compositionally identical.

The remaining components are structurally the same as those of the first embodiment, so the same reference numerals are used. Accordingly, to avoid duplicate description, description of the same components is omitted here.

FIG. 11 is a diagram for explaining the third embodiment of the driving unit 60 shown in FIG. 2.

As shown in FIG. 11, the driving unit 60c of the third embodiment includes a motor 61c, a gearbox 62c, a driving shaft 63c, a driving gear 64c, a driven gear 65c, and a driven shaft 66c. ) may include.

The motor 61c generates driving force and transmits it to the gearbox 62c, and may be installed inside the upper surface of the stator 20.

The gearbox 62c is combined with the motor 61c and has various gears built in to transmit the driving force necessary to rotate the drive shaft 63c, and may be installed outside the upper surface of the stator 20. Gearbox 62c may be a reducer.

Inside the gearbox 62c of this embodiment, a drive shaft 63c coupled to the motor 61c and rotated by the motor 61c, a drive gear 64c provided on the drive shaft 63c, and a drive gear 64c A driven gear 65c that rotates in mesh with and a driven shaft 66c that is coupled to the driven gear 65c to support the rotation of the driven gear 65c and transmit rotational force to the disk 50 may be provided.

The driving gear 64c and the driven gear 65c may be reduction gears with a reduction ratio of 6:1, but are not limited to this, and of course, reduction gears with various reduction ratios can be applied.

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

Specifically, the drive shaft 63c may have its upper portion rotatably coupled to the upper surface of the gearbox 62c by the seventh bearing B7, and its lower portion may be rotatably coupled to the gearbox 62c by the eighth bearing B8. It can be rotatably coupled to the bottom of the.

In this embodiment, the drive shaft 63c is a shaft that rotates with the driving force of the motor 61c and is not a shaft to which a lot of axial force is applied. In this case, the 7th and 8th bearings B7 and B8 are the drive shaft 63c. ) or a bearing that can prevent the lateral force of the drive shaft 63c from moving, for example, a self-aligning bearing, can be applied.

The driven shaft 66c can be rotatably coupled to the upper surface of the gearbox 62c by the ninth bearing B9, and has a tenth bearing B10 and an eleventh bearing B11 arranged in series. The lower part can be rotatably coupled to the lower surface of the gearbox 62c.

In this embodiment, the driven shaft 66c is a shaft that directly transmits driving force to the disk 50, and is a shaft on which a lot of axial force and lateral force are applied, so in this case, the tenth bearing B10 is A bearing that can prevent the axial force of the driven shaft (66c), for example, a thrust bearing, can be applied, and the 11th bearing (B11) can prevent the lateral force of the driven shaft (66c). Bearings that can be used, for example, self-aligning bearings, can be applied.

In addition, since the 10th and 11th bearings (B10, B11) are arranged in series with the driven shaft (66c) on the lower surface of the gearbox (62c), the thickness of the lower surface of the gearbox (62c) is made relatively thicker than the other surface to make the 10th and 11th bearings (B10, B11) 11Bearings (B10, B11) can be installed. When the thickness of the lower surface of the gearbox 62c is the same as before, the bearing housing 67a of the first embodiment described above can be fixedly installed inside the gearbox 62c to install the 10th and 11th bearings B10 and B11. Of course it is possible.

As mentioned above, in this embodiment, the driven shaft 66c is a shaft that directly transmits the driving force to the disk 50, and a lot of axial force and lateral force are applied, but the axial force and lateral force are applied by the 10th and 11th bearings B10 and B11. Not only can this be prevented, but the length of the driven shaft (66c) itself is short, so the ninth bearing (B9) can be applied as a bearing that can prevent the lateral force of the driven shaft (66c), for example, a self-aligning bearing. You can.

The lower bearing unit 70 shown in FIG. 2 suppresses the lateral movement of the rotor 30 rotating with the power of the drive unit 60, and can be implemented in various embodiments. Hereinafter, the first The lower bearing portion 70a of the embodiment will be described with reference to FIGS. 12 to 14, the lower bearing portion 70b of the second embodiment will be described with reference to FIGS. 15 to 17, and the lower bearing portion of the third embodiment ( 70c) will be described with reference to FIGS. 18 to 20, the lower bearing portion 70d of the fourth embodiment will be described with reference to FIGS. 21 to 22, and the lower bearing portion 70e of the fifth embodiment will be described with reference to FIGS. 23 to 23. The description will be made with reference to FIG. 25, and the lower bearing part 70f of the sixth embodiment will be explained with reference to FIGS. 26 to 27.

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

As shown in FIGS. 12 to 14, the lower bearing portion 70a of the first embodiment may be composed of an assembly of bearing units 71a and may be installed on the basic structure 10.

The bearing unit 71a may be installed on the basic structure 10 and may include a guide bearing 71a1 and a bearing support 71a2.

The guide bearing 71a1 may be installed on the top of the bearing support 71a2 and may guide the rotation of the rotor 30.

The bearing support 71a2 supports the guide bearing 71a1 installed at the top and may be installed on the basic structure 10.

The above-described bearing units 71a are arranged in plural numbers at regular intervals along the inner peripheral surface of the rotor 30 to form the lower bearing portion 70a. At this time, the guide bearing 71a1 is located at the bottom of the rotor 30. It is in close contact with the inner peripheral surface, and the bearing support 71a2 can be installed on the basic structure 10 without overlapping the rotor 30 and the stator 20.

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

The passage 81 can be secured by making the diameter of the stator 20 smaller than before. For example, when the diameter of the existing stator is 4 to 4.5 m, the passage 81 can be secured by reducing the diameter of the stator 20 of this embodiment to 2 to 2.5 m.

The overall diameter of the stator 20 can be made small, but the diameter of the upper part where the driving part 60 is installed, as shown in FIG. 12, is the same as the existing diameter so that there is a space for the driving part 60 to be installed at the top. It may be desirable to make it larger.

Through this, the lower bearing part 70a of this embodiment is easy to manufacture as a bearing unit 71a, and the installation man-hours can be reduced by directly installing the bearing support 71a2 on the basic structure 10, and the passage 81 ), maintenance can be facilitated, and the stator 20 can be made lighter.

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

As shown in FIGS. 15 to 17, the lower bearing portion 70b of the second embodiment may be composed of an assembly of bearing units 71b and may be installed on the basic structure 10.

The bearing unit 71b may be installed on the basic structure 10 and may include a guide bearing 71b1 and a bearing support 71b2.

The guide bearing 71b1 may be installed on the top of the bearing support 71b2 and may guide the rotation of the rotor 30.

The bearing support 71b2 supports the guide bearing 71b1 installed at the top and may be installed on the basic structure 10.

The bearing units 71b described above are arranged in plural pieces at regular intervals along the inner peripheral surface of the rotor 30 to form the lower bearing unit 70b. At this time, the guide bearing 71b1 is located at the bottom of the rotor 30. It is in close contact with the inner peripheral surface, and the bearing support 71b2 may be installed on the basic structure 10 so as to overlap the stator 20.

The stator 20 of this embodiment has openings 82 at regular intervals at the lower end, and the bearing unit 71b is installed in the opening 82, so that the bearing unit 71b overlaps the stator 20. It can be installed whenever possible.

Through this, the lower bearing part 70b of this embodiment is easy to manufacture as a bearing unit 71b, and the installation man-hours can be reduced by directly installing the bearing support 71b2 on the basic structure 10, and the opening part (71b) can be easily manufactured. Maintenance of the bearing unit (71b) can be facilitated through 82).

Figure 18 is a partial view of the wind power propulsion system 1 for explaining the third embodiment of the lower bearing part 70 shown in Figure 2, and Figure 19 is a diagram configuring the lower bearing part 70c of the third embodiment. This is a drawing for explaining the bearing unit 71c, and Figures 20 (a) to (c) are diagrams showing the bearing unit 71c of Figure 19 installed on the stator 20, where (a) is It is a top view, (b) is a front view, and (c) is a rear view.

As shown in FIGS. 18 to 20, the lower bearing portion 70c of the third embodiment may be composed of an assembly of bearing units 71c and may be installed on the stator 20.

The bearing unit 71c may be installed on the stator 20 and may include a guide bearing 71c1, a first joint plate 71c2, and a second joint plate 71c3. In this embodiment, the stator 20 may be provided with a window 83 at regular intervals at a position where the bearing unit 71c is installed.

The guide bearing 71c1 may be installed on the first joint plate 71c2 and may guide the rotation of the rotor 30.

The first joint plate (71c2) may be composed of a pair and may be coupled to both ends of the bearing shaft (71c11) of the guide bearing (71c1). The pair of first joint plates 71c2 may extend horizontally to one side of the guide bearing 71c1 while coupled to the bearing shaft 71c11, and may have a vertically bent shape at the extended end. A pair of first joint plate 71c2 may be provided with a plurality of first bolting holes 71c21 for bolting connection with the second joint plate 71c3.

The second joint plate (71c3) can be installed along the edge of the window 83 on the inside of the stator 20, and is connected to a pair of first joint plate (71c2) through a first bolting hole (71c21). A plurality of second bolting holes 71c31 corresponding to may be provided. The second joint plate 71c3 may have a protruding shape with a size that is at least the radius of the guide bearing 71c1 or smaller.

The bearing units 71c described above are installed on the stator 20 through bolting of the first and second joint plates 71c2 and 71c3, and are arranged in plural numbers at regular intervals along the inner peripheral surface of the rotor 30. It forms the lower bearing part 70c, where the guide bearing 71c1 is fixed by the first and second joint plates 71c2 and 71c3, as shown in (a) to (c) of Figure 20. A portion may protrude outward through the window 83 of the stator 20 and come into close contact with the inner peripheral surface of the rotor 30.

Through this, the lower bearing part 70c of this embodiment is not only easy to manufacture by modularizing the bearing unit 71c, but also reduces installation man-hours, and ensures structural safety by being installed on the stator 20. You can.

Figure 21 is a partial view of the wind power propulsion system 1 for explaining the fourth embodiment of the lower bearing part 70 shown in Figure 2, and Figure 22 shows the lower bearing part 70d of the fourth embodiment. This is a drawing to explain the bearing unit (71d).

As shown in FIGS. 21 and 22, the lower bearing portion 70d of the fourth embodiment may be composed of an assembly of bearing units 71d and may be installed on the stator 20.

The bearing unit 71d may be installed on the stator 20 and may include a guide bearing 71d1 and a joint box 71d2. In this embodiment, the stator 20 may be provided with a window 84 at regular intervals at a position where the bearing unit 71d is installed.

The guide bearing 71d1 may be installed in the joint box 71d2 and may guide the rotation of the rotor 30.

The joint box 71d2 can be installed along the edge of the window 84 on the inside of the stator 20, and can fix the guide bearing 71d1 with a portion of the guide bearing 71d1 protruding to the outside. there is. The joint box 71d2 may be provided with a plurality of first bolting holes 71d21 for bolting connection with the stator 20.

The stator 20 may be provided with a window 84 at regular intervals at a position where the bearing unit 71d is installed, and has a first window 84 along the edge of the window 84 for bolting connection with the joint box 71d2. A second bolting hole (71d22) may be provided corresponding to the bolting hole (71d21).

The bearing units 71d described above are installed on the stator 20 through bolting of the joint box 71d2, and are arranged in plural pieces at regular intervals along the inner peripheral surface of the rotor 30 to form the lower bearing portion 70d. At this time, a portion of the guide bearing 71d1 protrudes outward through the window 84 of the stator 20 while the joint box 71d2 is fixed to the stator 20, thereby protruding from the rotor 30. It can be closely adhered to the inner circumferential surface.

Through this, the lower bearing part 70d of this embodiment is not only easy to manufacture by modularizing the bearing unit 71d, but also reduces installation man-hours, and ensures structural safety by being installed on the stator 20. You can.

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

As shown in FIGS. 23 to 25, the lower bearing portion 70e of the fifth embodiment may be composed of a single bearing unit 71e and may be installed on the stator 20.

The bearing unit 71e may be installed on the stator 20 and may include a guide bearing 71e1 and a guide rail 71e2.

The guide bearing 71e1 may be installed along the outer peripheral surface of the stator 20 and may guide the rotation of the rotor 30.

The guide bearing 71e1 may be a single ring-shaped bearing, for example, a journal type or ball/roller type bearing.

Considering that the ring-shaped guide bearing 71e1 is currently the largest bearing that can be installed in a structure with a diameter of 2.5 m, the stator 20 may have a diameter smaller than at least 2.5 m. This stator 20 may have an overall diameter of 2.5 m or less, but the diameter of the upper part where the driving part 60 is provided as shown in FIG. 23 is provided so that there is a space for the driving part 60 to be installed at the top. It may be desirable to increase the existing diameter (e.g. 4 to 4.5 m).

The guide rail 71e2 may be formed along the inner peripheral surface of the rotor 30 at a position corresponding to the annular guide bearing 71e1 and may guide the guide bearing 71e1. At this time, the guide rail 71e2 can have various protruding heights, and the protruding height can be determined depending on the diameter of the rotor 30.

That is, when the diameter of the stator 20 is 2.5 m, the minimum diameter of the rotor 30 may correspond to the diameter of the guide bearing 71e1 installed on the outer peripheral surface of the stator 20, and the guide rail 71e2 The maximum diameter of the rotor 30 may be determined depending on the protrusion height of .

In general, the larger the diameter of the rotor 30, the better the wind power propulsion ability, so in this embodiment, even if the diameter of the rotor 30 is increased as desired, the lower bearing portion is maintained by adjusting the protrusion height of the guide rail 71e2. It enables the function of (70e) to be performed.

This guide rail (71e2) may be manufactured separately and installed on the inner peripheral surface of the rotor 30, or may be manufactured integrally with the rotor 30.

Through this, the lower bearing part 70e of this embodiment can secure structural safety by installing a ring-shaped single bearing as the guide bearing 71e1 on the stator 20, and the height of the guide rail 71e2 By adjusting , the size of the rotor 30 can be changed to a desired size, making it possible to easily improve wind propulsion performance.

FIG. 26 is a partial view of the wind power propulsion system 1 for explaining the sixth embodiment of the lower bearing part 70 shown in FIG. 2, and FIG. 27 is a view cut along line A-A' of FIG. 26. am.

As shown in FIGS. 26 and 27, the lower bearing portion 70f of the sixth embodiment may be composed of an assembly of bearing units 71f and may be installed on the rotor 30.

The bearing unit 71f may be installed on the rotor 30 and may include a guide bearing 71f1, an arm 71f2, and a guide rail 71f3.

The guide bearing 71f1 can be installed on one side of the arm 71f2 and can guide the rotation of the rotor 30.

The arm 71f2 may be installed on the inner peripheral surface of the rotor 30. Arm 71f2 may be length variable, foldable, or fixed. If the arm (71f2) is length variable, its length can be adjusted manually like a telescopic or tent pole.

The guide rail 71f3 may be formed along the outer peripheral surface of the stator 20 and may guide the guide bearing 71f1. At this time, the guide rail 71f3 can have various protruding heights, and the protruding height can be determined depending on the diameter of the stator 20 or the rotor 30.

For example, when the diameter of the stator 20 is changed in a state in which the diameter of the rotor 30 is determined, the protrusion height of the guide rail 71f3 is adjusted according to the changed diameter of the lower bearing portion 70f. Allows it to perform its function. Additionally, the same applies when changing the diameter of the rotor 30 while the diameter of the stator 20 is determined.

This guide rail (71f3) may be manufactured separately and installed on the outer peripheral surface of the stator 20, or may be manufactured integrally with the stator 20.

Through this, the lower bearing part 70f of this embodiment can manufacture the rotor 30 or stator 20 to a desired size by adjusting the height of the guide rail 71f3, thereby easily improving wind propulsion performance. You can do it.

As described above, the wind power propulsion system 1 of the present invention includes the stator 20, rotor 30, end plate 40, disk 50, drive unit 60, and lower bearing shown in FIG. Each of the units 70 has been described in various embodiments with reference to FIGS. 3 to 27, and is not limited to the embodiments for each configuration, and may be combined with a combination of the above embodiments or at least one of the above embodiments and known techniques. A combination of may be included as another example.

In the above, the present invention has been described focusing on the embodiments of the present invention, but this is only an example and does not limit the present invention, and those of ordinary skill in the field to which the present invention pertains will not deviate from the essential technical content of the present embodiments. It will be appreciated that various combinations, modifications, and applications not illustrated in the examples are possible within the scope. Accordingly, technical details related to modifications and applications that can be easily derived from the embodiments of the present invention should be construed as included in the present invention.

1: Wind propulsion system 10: Basic structure
20: stator 30, 30a, 30b: rotor
31a: unit panel 31a1: curved plate
31a2: Female connector 31a21: 1st edition
31a22: 2nd edition 31a23: 3rd edition
31a24: 4th edition 31a3: Male connector
31a31: 5th edition 31a32: 6th edition
31a4: Fitting space 31b: Lower rotor
31b1: first edge panel 32b: upper rotor
32b1: second edge panel 33b: coupling member
33b1: first clamping plate 33b2: second clamping plate
33b3: first bolting member 33b4: second bolting member
33b5: first bonding member 33b6: second bonding member
40, 40a: end plate 41a: disc
42a: Stiffener 43a: Central area
44a: Outer area 50: Disk
60, 60a, 60b, 60c: Drive unit 61a, 61c: Motor
62a, 62c: gearbox 63a, 63c: drive shaft
64a, 64c: driving gear 65a, 65c: driven gear
66a, 66c: driven shaft 66a1: first driven shaft
66a2: Second driven shaft 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 shaft 71a2, 71b2: Bearing support
71c2: 1st joint plate 71c21: 1st bolting hole
71c3: 2nd joint plate 71c31: 2nd bolting hole
71d2: Joint box 71d21: First bolting hole
71d22: Second bolting hole 71e2: Guide rail
71f2: Arm 71f3 Guide Rail
81: passage 82: opening
83, 84: Window B1 to B11: 1st to 11th bearings
S: Ship L: Lifting device

Claims (9)

delete delete delete delete A stator (20) provided perpendicular to the deck;
A rotor 30 provided in a cylindrical shape to surround the outside of the stator 20;
A driving unit 60 that transmits rotational power to the rotor 30 through a disk 50 connected to the rotor 30; and
It includes a lower bearing part (70e) installed at the lower part of the rotor (30) to suppress the lateral movement of the rotor (30),
The lower bearing portion 70e is,
It consists of a single bearing unit (71e) and is installed on the stator (20),
The bearing unit (71e) is,
A guide bearing (71e1) installed along the outer peripheral surface of the stator (20) and guiding the rotation of the rotor (30); and
A guide is formed to protrude from the rotor 30 to the guide bearing 71e1 along the inner peripheral surface of the rotor 30 at a position corresponding to the guide bearing 71e1, and guides the guide bearing 71e1. Wind propulsion system (1) including rail (71e2). delete The method of claim 5, wherein the guide bearing (71e1) is:
Wind propulsion system (1) with a single ring-shaped bearing, journal type or ball/roller type bearing. The method of claim 5, wherein the stator (20) is:
A wind propulsion system (1) in which the diameter of the lower part where the guide bearing (71e1) is installed is relatively smaller than the upper part where the drive unit (60) is installed. A ship (S) characterized in that it is equipped with the wind propulsion system (1) according to any one of claims 5, 7, and 8.

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