KR102552704B1 - Wind-propelled System and Ship having the same - Google Patents

Abstract

The present invention relates to a wind power propulsion system and a ship having the same, and the wind power propulsion system of the present invention includes a stator provided vertically on a foundation structure installed on a deck; a rotor provided in a cylindrical shape to surround the outside of the stator; a driving unit transmitting rotational power to the rotor through a disk connected to the rotor; And a lower bearing part installed below the rotor to suppress the lateral movement of the rotor, wherein the rotor extends a certain length inward from the upper end and has a ring shape having a space for accommodating the disk. A lower rotor provided with an edge panel; an upper rotor having a ring-shaped second edge panel extending a predetermined length inward at a lower end and having a space accommodating the disk; and a coupling member coupling the lower rotor, the upper rotor, and the disk.

Description

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

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

Ships are usually powered by fossil fuels. It is known that ships are equipped with engines of high power for driving thrusters and the like, and the amount of fuel consumed by large ships during long-distance navigation amounts to hundreds of tons. Operating these vessels is costly and the emission of pollutants from fuel consumption is a very serious problem.

In order to solve this problem, it is desirable to diversify the power sources of ships. For example, an electric propulsion ship technology that obtains part of the propulsion force from an electric motor is being developed and applied, and other technologies for obtaining electricity using various environmental conditions experienced by ships at sea are being developed.

Furthermore, utilization of sunlight, wind power, etc., as a natural energy that does not generate exhaust at all is also attracting attention. In particular, in the case of wind power, in that wind power can be easily converted into propulsion by installing facilities such as sails on the deck, there is an advantage in that the structure is simple and the maintenance cost is low.

In addition, recently, unlike a generally known sail, a rotor facility (for example, a magnus rotor) capable of converting wind power into propulsion in a desired direction while directly rotating using power has been mounted on a solid ship. These rotor facilities are composed of a stator fixed to the deck and a rotor which is provided in a cylindrical shape to surround the surface and upper surface of the stator and whose rotational speed or direction is controlled.

Recently, many researches and developments have been conducted on these rotor facilities in that they can process wind power into a desired propulsion force, unlike sails. However, since the rotor facility is in the form of a large column with a diameter of several meters and a height of several tens of meters, from the viewpoint of installation on the deck, durability according to ship movement, interference with front sight, control, etc., there is still need to be solved/improved. A number of problems remain. The background technology of the present invention is described in US Patent Publication US4602584, Publication No. 10-2013-0052024, International Publication No. WO2013/110695, and Publication No. 10-2014-0024469.

The present invention was created to solve the problems of the prior art as described above, and an object of the present invention is to improve the structural performance and manufacture of the rotor, to secure the structural stability of the drive unit for driving the rotor, and to To provide a wind power propulsion system that facilitates structural stability and maintenance of a lower bearing installed between electrons and a stator, and secures structural stability through weight reduction of an end plate, and a ship equipped with the same.

A wind power propulsion system according to an aspect of the present invention includes a stator provided vertically on a foundation structure installed on a deck; a rotor provided in a cylindrical shape to surround the outside of the stator; a driving unit transmitting rotational power to the rotor through a disk connected to the rotor; And a lower bearing part installed below the rotor to suppress the lateral movement of the rotor, wherein the rotor extends a certain length inward from the upper end and has a ring shape having a space for accommodating the disk. A lower rotor provided with an edge panel; an upper rotor having a ring-shaped second edge panel extending a predetermined length inward at a lower end and having a space accommodating the disk; and a coupling member coupling the lower rotor, the upper rotor, and the disk.

Specifically, the coupling member may include a first clamping plate holding the lower surface of the first edge panel and the lower surface of the disk; a second clamping plate holding the upper surface of the first edge panel and the upper surface of the disk; a first bolting member fixing the first and second clamping plates and the disk; and a second bolting member fixing the first edge panel and the second edge panel.

Specifically, the coupling member may include a first bonding member provided between the first edge panel and the second clamping plate; and a second bonding member provided between the second edge panel and the second clamping plate.

Specifically, the foundation structure on land is mounted on the deck using a lifting device, the disk and the drive unit are installed on top of the stator on land, and the lower rotor is lifted with the lifting device to The stator is accommodated, the lower rotor and the disk are coupled using the coupling member, the lower rotor in which the stator is accommodated is mounted on the basic structure using the lifting device, and the upper rotor of the land is mounted. The electrons may be aligned with the upper part of the lower rotor mounted on the base structure using the lifting device, and the lower rotor and the upper rotor may be coupled using the coupling member.

A ship according to another aspect of the present invention is characterized in that it includes the wind power propulsion system described above.

The wind power propulsion system according to the present invention can improve the structural performance and manufacture of the rotor, secure the structural stability of the drive unit for driving the rotor, and install the lower bearing unit between the rotor and the stator. It is possible to secure structural stability and facilitate maintenance, and to secure structural stability through weight reduction of the end plate.

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

Objects, 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 adding reference numerals to components of each drawing in this specification, it should be noted that the same components have the same numbers as much as possible, even if they are displayed on different drawings. In addition, in describing the present invention, if it is determined that a detailed description of related known technologies may unnecessarily obscure the subject matter 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 accompanying drawings.

1 is a view showing a ship (S) equipped with a wind power propulsion system 1 according to an embodiment of the present invention, Figure 2 is to explain the wind power propulsion system 1 according to an embodiment of the present invention It is a drawing for

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

The foundation structure 10 is fixedly installed on the deck, and the stator 20 may be installed thereon.

The stator 20 may be provided vertically on the foundation structure 10 fixed on the deck, and may form the axis of the rotor 30.

The stator 20 may be a hollow cylindrical structure, and the driving unit 60 may be mounted thereon.

The rotor 30 is a structure provided in a cylindrical shape so as to surround the outside of the stator 20, and the stator 20 installed / fixed on the deck of the ship S is used as an axis, and power is driven by the drive unit 60 This addition can be rotated 360 degrees. At this time, due to hydrodynamic interference between the wind around the vessel S and the cylindrical rotor 30, the wind may be converted into the propulsive force of the vessel S.

That is, the rotor 30 may be rotated by transmitting power of the drive unit 60 through the disk 50 . At this time, as the rotor 30 is rotated with respect to the stator 20, which is the central axis in the vertical direction, increased pressure is generated on one side and reduced pressure/suction is generated on the opposite side, so that one side and Positive pressure and negative pressure are generated on each of the opposite sides to generate propulsive force as a force for moving the ship 100.

In addition, since the direction in which the positive pressure and the negative pressure are formed may be different depending on the direction of the rotor 30, the direction of the rotor 30 is rotated clockwise or counterclockwise, so that the ship S is operated through conversion. You can also control the direction.

Of course, the ship of the present embodiment is not limited to the one in which propulsion is formed by driving the rotor 30, and may be combined with the conventional embodiment, of course. For example, when the operation of the ship S by a main engine (not shown) and a rudder forms the main, the rotor 30 may play an auxiliary role. Unlike this, as the operation by the rotor 30 is mainly made and the operation of the ship S by the main engine and the rudder may be assisted, the driving of the rotor 30 is performed as needed in various situations. can be performed

The rotor 30 is rotatably connected to the lower bearing part 70 installed on the lower part, and receives the power of the drive part 60 installed on the upper part of the stator 20 to give rotational force. 50) can be connected.

An upper end of the rotor 30 may be opened, and an end plate 40 may be installed at the opened part.

The disk 50 may have a shape corresponding to the inner circumferential surface of the rotor 30, for example, a disc shape, and the outer circumferential surface may be fixedly connected to the inner circumferential surface of the rotor 30. It is connected to the disk 50 and the drive unit 60 to receive power from the drive unit 60 and apply rotational force to the rotor 30 .

The driving unit 60 may be installed above the stator 20 and connected to the disk 50 . The drive unit 60 may generate power capable of rotating the rotor 30 and transmit rotational force to the rotor 30 through the disk 50 .

The lower bearing part 70 may be installed below 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 the present embodiment includes a stator 20, a rotor 30, an end plate 40, a disk 50, a driving unit 60, and a lower bearing unit 70. Including, 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 hollow cylindrical structure and can be implemented in various embodiments. Hereinafter, the rotor 30a of the first embodiment is shown in FIGS. 3 to 4 Reference will be made, 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 combination of a plurality of unit panels 31a.

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 an interference fit with another adjacent unit panel 31a.

As shown in FIG. 4, the unit panel 31a includes a curved plate 31a1 having a curved shape in the width direction and extending in the length 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. Each of the curved plate 31a1, the female connector 31a2, and the male connector 31a3 constituting the unit panel 31a may have the same or similar thickness.

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 capable of press fitting between neighboring unit panels 31a.

For example, the female connector 31a2 includes a first plate 31a21 bent and extended 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 from the curved surface plate 31a1 in an outward direction, and a third plate bent and extended from an extended end of the second plate 31a22 in an outward direction of the rotor 30a ( 31a23) and a fourth plate 31a24 bent and extended from the extended end of the third plate 31a23 in the inward direction of the curved plate 31a1, by the first to fourth plates 31a24. An 'L'-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 toward the inside of the rotor 30a to correspond to the 'L'-shaped fitting space 31a4 of the female connector 31a2. It may include a fifth plate 31a31 and a sixth plate 31a32 bent from an extended end of the fifth plate 31a31 toward the inside of the curved plate 31a1.

Through this, the rotor (30a) of the present embodiment can be formed in a cylindrical shape with an empty inside by an interference fit coupling method using the unit panel (31a) configured as described above, compared to the adhesive coupling method or the bolting coupling method. The process can be simplified.

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

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

5 is a view for explaining a second embodiment of the rotor 30 shown in FIG. 2, and FIG. 6 is a lower rotor 31b and an upper rotor constituting the rotor 30b of the second embodiment. 7 (a) to (d) are views for explaining the mounting process of the rotor (30b) of the second embodiment.

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

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

The lower rotor 31b may be formed in a size capable of accommodating the stator 20, the disk 50, the driving unit 60, and the lower bearing unit 70.

At the upper end of the lower rotor 31b, a ring-shaped first edge panel 31b1 extending inwardly and having a space for accommodating the disk 50 is provided, and at the lower end of the upper rotor 32b, a ring-shaped first edge panel 31b1 is provided inwardly. A ring-shaped second edge panel 32b1 extending a certain length and having a space accommodating the disk 50 may be provided.

The coupling member 33b accommodates the stator 20, on which the disk 50 and the drive unit 60 are installed, inside the lower rotor 31b so that the first edge panel 31b1 and the disk 50 are aligned. In the state in which the lower rotor 31b and the disk 50 are coupled, the first edge panel 31b1 of the lower rotor 31b can be coupled with the lower rotor 31b and the disk 50. and the second edge panel 32b1 of the upper rotor 32b may be coupled.

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

In the above, the first bolting member 33b3 fixes the first clamping plate 33b1, the disk 50, and the second clamping plate 33b2 to couple the lower rotor 31b and the disk 50, , The second bolting member (33b4) fixes 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) and The upper rotor (32b) may be coupled.

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. A second bonding member 33b6 provided between the second edge panel 32b1 and the second clamping plate 33b2 may be further included. Here, the first and second bonding members 33b5 and 33b6 may be various adhesives or adhesive films of a coating method or an attachment method.

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 FIGS. 7(a) to (d).

First, as shown in (a) of FIG. 7, the onshore foundation structure 10 is mounted on the deck of the ship S using the lifting device L. Here, the lifting device L 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 top of the stator 20 on land, and the lower rotor 31b is lifted by the lifting device L to inside the stator 20. The stator 20 is accommodated therein, and the lower rotor 31b and the disk 50 are coupled using a 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 foundation structure 10 fixedly installed on the deck using the lifting device L.

As shown in (d) of FIG. 7, the upper rotor (32b) of the land is aligned with the upper part of the lower rotor (31b) mounted on the foundation 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 a coupling member (33b), thereby assembling through the implementation of a two-stage connection structure. In addition to simplifying the process, the crane's weight and height requirements can be improved.

The end plate 40 shown in FIG. 2 is installed at the open upper end 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 Explain with reference to.

FIG. 8 is a view 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 formed of a disc 41a and a stiffener 42a, and is formed of glass fiber reinforced plastic (GFRP) or carbon fiber reinforced plastic (CFRP). It can be.

The disc 41a may 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 end of the rotor 30, and the outer area 44a may be an area extending to the outside of the rotor 30, but is 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 stiffener 42a is for reinforcing the central region 43a of the disk 41a, and may be formed by extending in a plurality of radially from the center of the disk 41a to the edge of the central region 43a. Direction GFRP-UD may be 10t.

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

Through this, the end plate 40a of the present 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 through weight reduction of the end plate 40a. can make it

The drive unit 60 shown in FIG. 2 described above is installed on top of the stator 20 to generate power capable of rotating the rotor 30, and can be implemented in various embodiments. Hereinafter, the first The driving unit 60a of the embodiment will be described with reference to FIG. 9 , the driving unit 60b of the second embodiment will be described with reference to FIG. 10 , and the driving unit 60c of the third embodiment will be described with reference to FIG. 11 .

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

As shown in FIG. 9, the drive unit 60a of the first embodiment includes a motor 61a, a gearbox 62a, a drive shaft 63a, a drive gear 64a, a driven gear 65a, and a driven shaft 66a. ), and 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 coupled with the motor 61a and includes various gears for transmitting driving force required to rotate the drive shaft 63a, and may be installed inside the stator 20. The gearbox 62a may be a speed 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 engaged with and turned, and a driven shaft 66a coupled with the driven gear 65a to support rotation of the driven gear 65a may be provided.

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

The driven shaft 66a may include 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 passes through the upper surface of the gearbox 62a to the outside. It may protrude into and be installed to be coupled with 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 connected to the stator 20 It may be installed to be coupled to the disk 50 through the upper surface. The second driven shaft 66a2 may be connected to the first driven shaft 66a1 to transmit rotational force to the disk 50 .

Each of the drive shaft 63a, the first driven shaft 66a1, and the second driven shaft 66a2 may rotate by using various bearings.

Specifically, the driving shaft 63a may have an upper portion rotatably coupled to the upper surface of the gearbox 62a by the first bearing B1 and a lower portion of the gearbox 62a by the second bearing B2. It can be rotatably coupled to the lower surface of.

In this embodiment, the drive shaft 63a is an axis that rotates with the driving force of the motor 61a, and is not an axis to which an axial force is applied, so in this case, the first and second bearings B1 and B2 are the drive shaft 63a ) or a bearing capable of preventing the lateral force of the drive shaft 63a, for example, a self-aligning bearing, may be applied.

The first driven shaft 66a1 has an upper portion rotatably coupled to the upper surface of the gearbox 62a by the third bearing B3 and a lower portion connected to the gearbox 62a by the fourth bearing B4. It can be rotatably coupled to the lower surface of.

In this embodiment, the first driven shaft 66a1 is not an axis to which a large amount of axial force is applied because the driving force is not directly transmitted from the motor 61a or the driving force is not directly transmitted to the disk 50. The 3 and 4 bearings B3 and B4 may be bearings capable of preventing 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 a fifth bearing B5 and a sixth bearing B6 arranged in series.

In this embodiment, the second driven shaft 66a2 is an axis that directly transmits driving force to the disk 50, and is an axis to which axial force and lateral force are applied. In this case, the fifth bearing B5 ) may 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 is the lateral force of the second driven shaft 66a2 ( 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 the second driven shaft 66a2 receives a lot of axial force and lateral force, the stator 20 can withstand the axial force and the lateral force of the fifth and sixth bearings B5 and B6 arranged in series. It is difficult to connect tightly to

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

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

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

The drive unit 60b of the second embodiment is different from the drive unit 60a of the first embodiment described above in the installation position of the bearing housing 67b.

That is, the bearing housing 67b of the present embodiment is installed outside the top surface of the stator 20, and the bearing housing 67a of the first embodiment described above is installed inside the top surface of the stator 20, and the rest of the configuration Elements are compositionally identical.

The rest of the components are structurally the same as those of the first embodiment, so the same reference numerals are used. Accordingly, descriptions of the same components are omitted here to avoid redundant description.

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

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

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 coupled with the motor 61c and includes various gears for transmitting driving force required to rotate the drive shaft 63c, and may be installed outside the upper surface of the stator 20. The gearbox 62c may be a speed 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 engaged with and turned, and a driven shaft 66c coupled with the driven gear 65c to support rotation of the driven gear 65c and transmitting rotational force to the disk 50 may be provided.

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

Each of the drive shaft 63c and the driven shaft 66c may be rotated by various bearings.

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

In this embodiment, the drive shaft 63c is a shaft that rotates with the driving force of the motor 61c and is not an shaft to which axial force is applied, so in this case, the seventh and eighth bearings B7 and B8 are the drive shaft 63c ) or a bearing capable of preventing the lateral force of the drive shaft 63c, for example, a self-aligning bearing, may be applied.

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

In this embodiment, the driven shaft 66c is an axis that directly transmits driving force to the disk 50, and since it is an axis to which axial force and lateral force are applied a lot, 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 eleventh 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 and B11 are arranged in series on the driven shaft 66c on the lower surface of the gearbox 62c, the lower surface of the gearbox 62c is relatively thicker than the other surface, so that the 10th, 11 Bearings (B10, B11) can be installed. When the thickness of the lower surface of the gearbox 62c is the same as the conventional thickness, the bearing housing 67a of the first embodiment is fixed and installed inside the gearbox 62c to install the 10th and 11th bearings B10 and B11. Of course you can.

As described above, in this embodiment, the driven shaft 66c is an axis that directly transmits a driving force to the disk 50, and a lot of axial force and lateral force are applied, but axial force and lateral force are applied by the 10th and 11th bearings B10 and B11 Of course, since the length of the driven shaft 66c itself is short, the ninth bearing B9 can be applied as a bearing capable of preventing the lateral force of the driven shaft 66c, for example, as a self-aligning bearing. can

The lower bearing part 70 shown in FIG. 2 above suppresses the lateral movement of the rotor 30 rotating by the power of the driving part 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) is described with reference to FIGS. 18 to 20, the lower bearing portion 70d of the fourth embodiment is described with reference to FIGS. 21 to 22, and the lower bearing portion 70e of the fifth embodiment is described with reference to FIGS. 23 to 23 A description will be made with reference to FIG. 25, and a description will be given of the lower bearing portion 70f of the sixth embodiment with reference to FIGS. 26 and 27.

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 taken along line A-A' of FIG. 12. , and FIG. 14 is a view cut along line BB' of FIG. 13 .

As shown in FIGS. 12 to 14 , the lower bearing part 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 an upper end of the bearing support 71a2 and may guide rotation of the rotor 30 .

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

The bearing units 71a described above are arranged in plurality at regular intervals along the inner circumferential surface of the rotor 30 to form the lower bearing part 70a. At this time, the guide bearing 71a1 is the rotor 30 Closely adhered to the inner circumferential surface, the bearing support 71a2 can be installed on the base structure 10 without overlapping the rotor 30 and the stator 20.

In this embodiment, a passageway 81 may be provided between the lower bearing part 70a and the stator 20 so that maintenance of the bearing unit 71a can be easily performed.

The passageway 81 can be secured by reducing the diameter of the stator 20 compared to the conventional one. 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 to 2 to 2.5 m.

The stator 20 may have a small diameter as a whole, but the diameter of the upper part where the driving part 60 is provided is the same as the conventional diameter, as shown in FIG. Enlarging may be desirable.

Through this, in the lower bearing part 70a of this embodiment, it is easy to manufacture the bearing unit 71a, and the installation man-hour can be reduced by directly installing the bearing support 71a2 on the basic structure 10, and the passage 81 ), it is possible to facilitate maintenance and reduce the weight of the stator 20.

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 taken along the line A-A' of FIG. 15 , and FIG. 17 is a view cut along line BB' of FIG. 16 .

As shown in FIGS. 15 to 17 , the lower bearing part 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 at an upper end of the bearing support 71b2 and may guide rotation of the rotor 30 .

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

The bearing units 71b described above are arranged in plurality at regular intervals along the inner circumferential surface of the rotor 30 to form the lower bearing part 70b. At this time, the guide bearing 71b1 is the rotor 30 Closely adhered to the inner circumferential surface, the bearing support 71b2 may be installed on the base structure 10 so as to overlap the stator 20 .

In the stator 20 of the present embodiment, an opening 82 is formed at a regular interval at a lower end, and a bearing unit 71b is installed in the opening 82 so that the bearing unit 71b overlaps the stator 20. can be installed as much as possible.

Through this, in the lower bearing part 70b of the present embodiment, it is easy to manufacture the bearing unit 71b, and the installation man-hour can be reduced by directly installing the bearing support 71b2 on the basic structure 10, and the opening part ( 82), it is possible to facilitate maintenance of the bearing unit 71b.

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 FIG. 2, and FIG. 19 is a view constituting the lower bearing part 70c of the third embodiment. 20(a) to (c) are views showing a state in which the bearing unit 71c of FIG. 19 is installed in the stator 20, where (a) is a view for explaining the bearing unit 71c. It is a plan view, (b) is a front view, and (c) is a rear view.

As shown in FIGS. 18 to 20 , the lower bearing part 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 windows 83 at regular intervals at a location where the bearing unit 71c is installed.

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

The first joint plate 71c2 may be formed as 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 horizontally extend to one side of the guide bearing 71c1 in a state of being coupled to the bearing shaft 71c11 and may have a vertically bent end portion. A plurality of first bolting holes 71c21 for bolting coupling with the second joint plate 71c3 may be provided in the pair of first joint plates 71c2.

The second joint plate 71c3 may be installed along the edge of the window 83 inside the stator 20, and has a first bolting hole 71c21 for coupling with a pair of first joint plates 71c2. A plurality of second bolting holes 71c31 corresponding to may be provided. The second joint plate 71c3 may have a protruding shape with at least a radius of the guide bearing 71c1 or less.

The bearing unit 71c described above is installed on the stator 20 through bolting of the first and second joint plates 71c2 and 71c3, and is arranged in plurality at regular intervals along the inner circumferential surface of the rotor 30. The lower bearing part 70c is formed. At this time, the guide bearing 71c1 is fixed by the first and second joint plates 71c2 and 71c3, as shown in (a) to (c) of FIG. 20 . A portion of the stator 20 may protrude outward through the window 83 of the stator 20 and adhere to the inner circumferential surface of the rotor 30 .

Through this, the lower bearing unit 70c of the present embodiment is not only easy to manufacture as the bearing unit 71c is modularized, but also can reduce installation man-hours, and secures structural safety as it is installed on the stator 20. can

21 is a partial view of a wind power propulsion system 1 for explaining the fourth embodiment of the lower bearing part 70 shown in FIG. 2, and FIG. 22 is a part of the lower bearing part 70d of the fourth embodiment. It is a drawing for explaining the bearing unit 71d.

As shown in FIGS. 21 and 22 , the lower bearing part 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 windows 84 at regular intervals at a location where the bearing unit 71d is installed.

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

The joint box 71d2 may be installed along the edge of the window 84 inside the stator 20, and may fix the guide bearing 71d1 while a part of the guide bearing 71d1 protrudes outward. there is. A plurality of first bolting holes 71d21 for bolting to the stator 20 may be provided in the joint box 71d2 .

In the stator 20, a window 84 may be provided at a predetermined interval at a position where the bearing unit 71d is installed, and a first window 84 is provided along the edge of the window 84 for bolting with the joint box 71d2. A second bolting hole 71d22 corresponding to the bolting hole 71d21 may be provided.

The bearing units 71d described above are installed on the stator 20 through bolting of the joint box 71d2, and are arranged in plurality at regular intervals along the inner circumferential surface of the rotor 30 to form a lower bearing unit 70d. At this time, a part of the guide bearing 71d1 protrudes outward through the window 84 of the stator 20 in a state where the joint box 71d2 is fixed to the stator 20, and thus rotates the rotor 30. It can adhere to the inner periphery.

Through this, the lower bearing unit 70d of the present embodiment is not only easy to manufacture as the bearing unit 71d is modularized, but also can reduce installation man-hours, and secures structural safety as it is installed on the stator 20. can

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 taken along the line A-A' of FIG. 23 25 is a view cut along line BB' of FIG. 24 .

As shown in FIGS. 23 to 25 , the lower bearing part 70e of the fifth embodiment may be composed of a single body of the 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 circumferential surface of the stator 20 and may guide rotation of the rotor 30 .

The guide bearing 71e1 may be a single ring-shaped bearing, and may be, 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 having a diameter of 2.5 m, the stator 20 may have a diameter smaller than at least 2.5 m. The stator 20 may have a diameter of 2.5 m or less as a whole, but the diameter of the upper portion where the driving unit 60 is provided is as shown in FIG. It may be desirable to make it as large as a conventional diameter (eg, 4 to 4.5 m).

The guide rail 71e2 may be formed along the inner circumferential surface of the rotor 30 at a position corresponding to the annular guide bearing 71e1, and may guide the guide bearing 71e1. In this case, the guide rail 71e2 may have various protruding heights, and the protruding height may be determined according to 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 circumferential surface of the stator 20, and the guide rail 71e2 The maximum diameter of the rotor 30 may be determined according to the protrusion height of .

In general, since the wind power propulsion capability of the rotor 30 increases as the diameter of the rotor 30 increases, the present embodiment adjusts the protrusion height of the guide rail 71e2 even if the diameter of the rotor 30 is as large as desired, so that the lower bearing part It enables the function of (70e) to be performed.

These guide rails 71e2 may be manufactured separately and installed on the inner circumferential surface of the rotor 30, or manufactured integrally with the rotor 30.

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

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 taken along the line A-A' of FIG. 26 am.

As shown in FIGS. 26 to 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 may be installed on one side of the arm 71f2 and may guide rotation of the rotor 30 .

The arm 71f2 may be installed on the inner circumferential surface of the rotor 30 . The arm 71f2 may be of a variable length type, a foldable type, or a fixed type. The length of the arm 71f2 can be adjusted manually like a telescopic or tent pole when the length is variable.

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

For example, when the diameter of the stator 20 is changed in a state where the diameter of the rotor 30 is determined, the height of the lower bearing portion 70f is adjusted by adjusting the protrusion height of the guide rail 71f3 according to the changed diameter. enable it to perform its function. Also, the same applies when the diameter of the rotor 30 is changed in a state where the diameter of the stator 20 is determined.

These guide rails 71f3 may be manufactured separately and installed on the outer circumferential surface of the stator 20, or manufactured integrally with the stator 20.

Through this, in the lower bearing part 70f of this embodiment, the size of the rotor 30 or the stator 20 can be manufactured to a desired size by adjusting the height of the guide rail 71f3, and thus the wind power propulsion performance is easily improved. can make it

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

In the above, the present invention has been described centering on the embodiments of the present invention, but these are only examples and do not limit the present invention, and those skilled in the art to which the present invention belongs do not deviate from the essential technical content of the present embodiment. It will be appreciated that various combinations or modifications and applications not exemplified in the embodiments are possible within the range. Therefore, technical details related to variations and applications that can be easily derived from the embodiments of the present invention should be construed as being included in the present invention.

1: wind propulsion system 10: foundation structure
20: stator 30, 30a, 30b: rotor
31a: unit panel 31a1: curved plate
31a2: female connector 31a21: first edition
31a22: 2nd edition 31a23: 3rd edition
31a24: 4th edition 31a3: male connector
31a31: Fifth Edition 31a32: Sixth 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: driving unit 61a, 61c: motor
62a, 62c: gearbox 63a, 63c: drive shaft
64a, 64c: drive 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: first joint plate 71c21: first bolting hole
71c3: second joint plate 71c31: second bolting hole
71d2: joint box 71d21: first bolting hole
71d22: second bolting hole 71e2: guide rail
71f2: arm 71f3 guide rail
81: passageway 82: opening
83, 84: windows B1 to B11: first to eleventh bearings
S: vessel L: lifting device

Claims (5)

A stator provided vertically on a foundation structure installed on a deck and having a disk installed thereon;
a rotor provided in a cylindrical shape to surround the outside of the stator;
a driving unit transmitting rotational power to the rotor through the disk connected to the rotor; and
A lower bearing portion installed below the rotor to suppress lateral movement of the rotor,
the rotor,
a lower rotor having a ring-shaped first edge panel extending a certain length inward at an upper end and having a space accommodating the disk;
an upper rotor having a ring-shaped second edge panel extending a predetermined length inward at a lower end and having a space accommodating the disk; and
A coupling member for coupling the lower rotor, the upper rotor, and the disk,
The coupling member is
A wind power propulsion system coupled to the disk positioned between the lower rotor and the upper rotor to fix the lower rotor and the upper rotor. The method of claim 1, wherein the coupling member,
a first clamping plate holding the lower surface of the first edge panel and the lower surface of the disk;
a second clamping plate holding the upper surface of the first edge panel and the upper surface of the disk;
a first bolting member fixing the first and second clamping plates and the disk; and
A wind power propulsion system comprising a second bolting member fixing the first edge panel and the second edge panel. The method of claim 2, wherein the coupling member,
a first bonding member provided between the first edge panel and the second clamping plate; and
The wind power propulsion system further comprises a second bonding member provided between the second edge panel and the second clamping plate. According to claim 1,
The foundation structure on land is mounted on the deck using a lifting device,
Installing the disk and the driving unit on top of the stator on land,
Lifting the lower rotor with the lifting device to accommodate the stator therein,
Combining the lower rotor and the disk using the coupling member,
The lower rotor in which the stator is accommodated is mounted on the foundation structure using the lifting device,
Aligning the upper rotor on land with the upper part of the lower rotor mounted on the foundation structure using the lifting device,
A wind power propulsion system for coupling the lower rotor and the upper rotor using the coupling member. A vessel characterized in that the wind power propulsion system according to any one of claims 1 to 4 is provided.

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