JP2023537640A - Wind propulsion system and ship equipped with it - Google Patents

Abstract

The present invention relates to a wind propulsion system and a ship equipped with the same, and in the wind propulsion system of the present invention including a stator, a rotor, a drive section, and a lower bearing section, the drive section includes a drive shaft rotated by a motor and a ship equipped with the same. , a gear provided inside the stator, which includes a drive gear provided on the drive shaft, a driven gear that meshes with the drive gear and rotates, and a first driven shaft that couples with the driven gear and supports rotation of the driven gear. a bearing housing that supports a second driven shaft that is connected to the first driven shaft by a coupling member and transmits rotational force to the disk; a lower rotor provided with a ring-shaped first edge panel having a space for accommodating a disk; and a ring-shaped second edge panel extending inwardly by a certain length at the lower end and having a space for accommodating the disk. and a connecting member that connects the lower rotor, the upper rotor, and the disk.

Description

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

Ships typically use fossil fuels for propulsion. Ships are equipped with high-output engines to drive thrusters, etc., and it is known that large ships consume hundreds of tons of fuel during long-distance navigation. The cost of operating these vessels is enormous, and pollutant emissions from fuel consumption are also a very serious problem.

In order to solve these problems, it is desirable to diversify the power sources of ships. For example, electric propulsion ship technology, which obtains some of the propulsion power from electric motors, has been developed and applied, and other technologies have been developed to obtain electricity by taking advantage of the various environmental conditions that ships experience at sea. .

Furthermore, the use of solar power, wind power, and the like is attracting attention as natural energy that does not generate exhaust at all. In particular, in the case of wind power, it is possible to easily convert wind power into propulsion by installing facilities such as a sail on the deck, which has the advantage of simple structure and low maintenance cost.

In addition, recently, unlike the generally known sail, a rotor device (e.g., magnus rotor) that can convert wind power into a desired direction of propulsion while rotating directly using power is installed on actual ships. ing. Such a rotor equipment consists of a stator fixed to the deck, and a rotor provided in a columnar shape so as to cover the surface and top surface of the stator and whose rotational speed and direction are adjusted. Become.

Recently, much research and development has been carried out on such rotor equipment because, unlike sails, it is possible to process wind power into a desired propulsion force. However, since the rotor equipment is a large column with a diameter of several meters and a height of several tens of meters, it is difficult to solve problems from the viewpoint of installation on the deck, durability due to movement of ships, forward vision interference, control, etc. There are still quite a few issues to improve.

SUMMARY OF THE INVENTION The present invention was created to solve the problems of the prior art as described above. Ensures the structural stability of the part, ensures the structural stability of the lower bearing part installed between the rotor and the stator, and facilitates maintenance. Structural stability can be ensured by reducing the weight of the end plate. It is to provide a wind propulsion system and a ship equipped with the same.

A wind power propulsion system according to one aspect of the present invention includes: a stator installed vertically on a deck; a rotor installed in a cylindrical shape so as to cover the outside of the stator; and a disk connected to the rotor. a driving part for transmitting rotational power to the rotor; and a lower bearing part provided under the rotor to suppress lateral movement of the rotor, wherein the driving part is driven to rotate by a motor. a shaft, a drive gear provided on the drive shaft, a driven gear that meshes with and rotates with the drive gear, and a first driven shaft coupled to the driven gear to support rotation of the driven gear; a gear box provided inside a stator; and a bearing housing supporting a second driven shaft that is connected to the first driven shaft by a coupling member to transmit rotational force to the disc, the rotor: A lower rotor having a ring-shaped first edge panel extending inwardly at its upper end and having a space for accommodating the disk, and a lower rotor extending inwardly at its lower end for accommodating the disk. An upper rotor provided with a ring-shaped second edge panel having a space, and a coupling member coupling the lower rotor, the upper rotor, and the disc.

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

Specifically, the driving shaft has an upper portion rotatably coupled to the upper surface of the gearbox by a first bearing, a lower portion rotatably coupled to the lower surface of the gearbox by a second bearing, and the first and second bearings. The bearing may be a bearing capable of preventing lateral force of the drive shaft or lateral movement of the drive shaft.

Specifically, the first driven shaft has an upper portion rotatably coupled to the upper surface of the gearbox by a third bearing, a lower portion rotatably coupled to the lower surface of the gearbox by a fourth bearing, and the third driven shaft. , 4 bearings may be bearings capable of preventing lateral force of the first driven shaft.

Specifically, the second driven shaft is rotatably coupled to the upper surface of the stator by a fifth bearing and a sixth bearing arranged in series, and the fifth bearing can prevent an axial force of the second driven shaft. A bearing, wherein the sixth bearing may be a bearing capable of preventing a lateral force of the second driven shaft.

Specifically, the coupling member includes a first clamp plate supporting the bottom surface of the first edge panel and the bottom surface of the disk, a second clamp plate supporting the top surface of the first edge panel and the top surface of the disk, and the A first bolt member securing the disc to the first and second clamp plates and a second bolt member securing the first edge panel and the second edge panel may be included.

Specifically, the coupling member includes 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. and a member.

Specifically, the foundation structure on land is mounted on the deck using a lifting device, the disk and the drive unit are installed on the top of the stator on land, and the lower rotor is lifted by the lifting device. and the stator is accommodated inside, the lower rotor and the disk are coupled using the coupling member, and the lower rotor in which the stator is accommodated is lifted using the lifting device to the foundation structure. The lifting device is used to align the upper rotor on land with the upper part of the lower rotor mounted on the substructure, and the coupling member is used to connect the lower rotor and the rotor. The upper rotor may be combined.

A marine vessel according to another aspect of the invention may include a wind propulsion system as described above.

The wind power propulsion system according to the present invention improves the structural performance of the rotor, facilitates manufacturing, secures the structural stability of the driving part that drives the rotor, and provides a lower part provided between the rotor and the stator. It is possible to secure the structural stability of the bearing portion and facilitate maintenance, and to secure the structural stability by reducing the weight of the end plate.

1 shows a vessel equipped with a wind propulsion system according to an embodiment of the invention; FIG. 1 is a diagram for explaining a wind propulsion system according to an embodiment of the present invention; FIG. FIG. 3 is a diagram for explaining the first embodiment of the rotor shown in FIG. 2; FIG. It is a figure for demonstrating the unit panel which comprises the rotor of 1st Example. 3 is a diagram for explaining a second embodiment of the rotor shown in FIG. 2; FIG. FIG. 8 is a view for explaining a connecting member that connects a lower rotor and an upper rotor that constitute the rotor of the second embodiment; (a) to (d) are diagrams for explaining a rotor mounting process of the second embodiment. 3 is a diagram for explaining the first embodiment of the end plate shown in FIG. 2; FIG. FIG. 3 is a diagram for explaining a first embodiment of the drive unit shown in FIG. 2; FIG. 3 is a diagram for explaining a second embodiment of the drive unit shown in FIG. 2; 3 is a diagram for explaining a third embodiment of the drive unit shown in FIG. 2; FIG. FIG. 3 is a partial view of the wind propulsion system for explaining the first embodiment of the lower bearing shown in FIG. 2; FIG. 13 is a view cut along the line A-A' of FIG. 12; FIG. 14 is a view cut along the line B-B' of FIG. 13; FIG. 3 is a partial view of the wind propulsion system for explaining a second embodiment of the lower bearing shown in FIG. 2; FIG. 16 is a view cut along the line A-A' of FIG. 15; FIG. 17 is a view cut along the line B-B' of FIG. 16; FIG. 3 is a partial view of the wind propulsion system for explaining a third embodiment of the lower bearing shown in FIG. 2; It is a figure for demonstrating the bearing unit which comprises the lower bearing part of 3rd Example. 20(a) to 20(c) are diagrams showing a state in which the bearing unit of FIG. 19 is provided on a stator; FIG. FIG. 3 is a partial view of a wind propulsion system for explaining a fourth embodiment of the lower bearing shown in FIG. 2; FIG. 11 is a diagram for explaining a bearing unit that constitutes a lower bearing portion of the fourth embodiment; FIG. 4 is a partial view of a wind propulsion system for explaining a fifth embodiment of the lower bearing shown in FIG. 2; FIG. 24 is a view cut along the line A-A' of FIG. 23; FIG. 25 is a view cut along the line B-B' of FIG. 24; FIG. 3 is a partial view of the wind propulsion system for explaining the sixth embodiment of the lower bearing shown in FIG. 2; FIG. 27 is a view cut along the line A-A' of FIG. 26;

Objects, particular 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. It should be noted that in this specification, in assigning reference numbers to constituent elements in each drawing, it should be noted that the same constituent elements are given the same numbers as much as possible even if they are displayed on other drawings. sea bream. In addition, in describing the present invention, if a detailed description of related known technologies is deemed to unnecessarily obscure the gist of the present invention, the detailed description will be omitted.

Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

FIG. 1 is a diagram showing a ship S equipped with a wind power propulsion system 1 according to one embodiment of the present invention, and FIG. 2 is a diagram for explaining the wind power propulsion system 1 according to one embodiment of the present invention.

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

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

The stator 20 may be mounted vertically on the substructure 10 fixed on the deck and may form the axis of the rotor 30 .

The stator 20 may be a columnar structure with an open interior, and the drive unit 60 may be mounted on the top.

The rotor 30 is a structure provided in a columnar shape so as to cover the outside of the stator 20 . can be rotated 360 degrees. At this time, due to the hydrodynamic interaction between the wind around the vessel S and the cylindrical rotor 30, the wind can be switched to the propulsion of the vessel S.

That is, the rotor 30 can be rotated by the power of the driving part 60 being transmitted through the disk 50 . At this time, as the rotor 30 rotates around 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 opposite side. A positive pressure and a negative pressure are generated on one side and the opposite side, respectively, to generate a propulsive force, which is 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 operation of the ship S is changed through the conversion in which the direction of the rotor 30 rotates clockwise or counterclockwise. can also be controlled.

Needless to say, the ship of this embodiment is not limited to generating propulsive force by driving the rotor 30, and may be combined with conventional embodiments. For example, when the ship S is mainly operated by a main engine (not shown) and a rudder, the rotor 30 can play an auxiliary role. Alternatively, the rotor 30 is the main actuation, and the main engine and rudder may assist in operating the vessel S, and the rotor 30 may be driven as needed in various situations. can be done.

The rotor 30 is rotatably connected to a lower bearing portion 70 provided below the stator 20, and is connected to a disk 50 that receives power transmission from a driving portion 60 provided above the stator 20 and imparts rotational force. good too.

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

The disk 50 may have a shape corresponding to the inner peripheral surface of the rotor 30 , such as a disk shape, and the outer peripheral surface may be fixedly connected to the inner peripheral surface of the rotor 30 . The disk 50 may be connected to the driving part 60 to receive the power of the driving part 60 and apply the rotational force to the rotor 30 .

The driving part 60 may be installed on the stator 20 and connected to the disk 50 . The driving unit 60 generates power for rotating the rotor 30 and transmits the torque to the rotor 30 through the disk 50 .

The lower bearing part 70 may be provided below the rotor 30 . The lower bearing portion 70 may be configured to restrain lateral movement when the rotor 30 is rotated by the power of the driving portion 60 .

As described above, the wind propulsion system 1 of this embodiment includes the stator 20, the rotor 30, the end plate 40, the disk 50, the drive section 60, and the lower bearing section 70. The configuration will be specifically described with reference to FIGS. 3 to 27. FIG.

The rotor 30 shown in FIG. 2 is a cylindrical structure with an empty interior, and can be embodied in various embodiments. 4, and the rotor 30a of the second embodiment will be described with reference to FIGS.

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

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

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

A unit panel 31a may be configured to allow an interference fit connection 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 longitudinal direction, a female connector 31a2 provided along one side edge of the curved plate 31a1, and a curved plate 31a1. and a male connector 31a3 provided along the other edge of the face plate 31a1. Each thickness of the curved plate 31a1, the female connector 31a2, and the male connector 31a3 forming the unit panel 31a may be the same or similar.

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

The female connector 31a2 and the male connector 31a3 can have various structures that allow for an interference fit connection between the adjacent unit panels 31a.

For example, the female connector 31a2 includes a first plate 31a21 bent and extending inwardly of the rotor 30a from one side end of the curved plate 31a1, and a first plate 31a21 extending outwardly of the curved plate 31a1 from the extended end of the first plate 31a21. a second plate 31a22 that is bent and extended; a third plate 31a23 that is bent and extended from the extended end of the second plate 31a22 toward the outer side of the rotor 30a; and a fourth plate 31a24 that is bent and extended inwardly of the face plate 31a1. The first to fourth plates 31a24 form an "L"-shaped fitting space 31a4 corresponding to the shape of the male connector 31a3. can be formed. At this time, the male connector 31a3 is bent toward the inner side of the rotor 30a from the other end of the curved surface plate 31a1 so as to correspond to the "L"-shaped fitting space 31a4 of the female connector 31a2. It may be composed of a plate 31a31 and a sixth plate 31a32 that is bent and extended from the extended end of the fifth plate 31a31 toward the inner side of the curved plate 31a1.

For this reason, the rotor 30a of this embodiment can be formed in a columnar shape with an open interior by an interference fit connection method using the unit panel 31a configured as described above. The coupling process can be simplified compared to the bolting coupling method.

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

In addition, in the rotor 30a of this embodiment, the portion where the female connector 31a2 and the male connector 31a3 are tightly fitted together is thicker than the curved surface plate 31a1, so that it can naturally act as a reinforcing member in the longitudinal direction. It can be more economical than the conventional sandwich manufacturing method in which resin or the like is injected inside.

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

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

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

The lower rotor 31b may be formed in a size that accommodates the stator 20, the disk 50, the driving part 60, and the lower bearing part 70. As shown in FIG.

A ring-shaped first edge panel 31b1 is provided at the upper end of the lower rotor 31b and has a space for accommodating the disc 50, extending inwardly by a certain length. A ring-shaped second edge panel 32b1 may be provided that has a space to extend and accommodate the disc 50 .

The coupling member 33b accommodates the stator 20 having the disk 50 and the driving part 60 on the upper part thereof inside the lower rotor 31b, and the first edge panel 31b1 and the disk 50 are aligned with the lower rotor 31b. The disk 50 can be combined, and the first edge panel 31b1 of the lower rotor 31b and the second edge panel 32b1 of the upper rotor 32b can be combined in a state where the lower rotor 31b and the disk 50 are combined. .

Specifically, the coupling member 33b includes a first clamp plate 33b1 that supports the lower surface of the first edge panel 31b1 and the lower surface of the disk 50, and a second clamp plate 33b2 that supports the upper surface of the first edge panel 31b1 and the upper surface of the disk 50. a first bolt member 33b3 for fixing the first and second clamp plates 33b1, 33b2 and the disk 50; 2 bolt members 33b4 and .

In the above, the first bolt member 33b3 can fix the first clamp plate 33b1, the disc 50, and the second clamp plate 33b2 to couple the lower rotor 31b and the disc 50, and the second bolt member 33b4 can A first clamp plate 33b1, a first edge panel 31b1, a second clamp plate 33b2, and a second edge panel 32b1 may be fixed to couple the lower rotor 31b and the upper rotor 32b.

The coupling member 33b includes a first bonding member 33b5 provided between the first edge panel 31b1 of the lower rotor 31b and the second clamp plate 33b2, and a second edge panel 32b1 of the upper rotor 32b and the second clamp. and a second bonding member 33b6 provided between the plate 33b2. Here, the first and second bonding members 33b5 and 33b6 may be various adhesives or adhesive films of coating or attaching methods.

A process of mounting 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 7(d).

First, as shown in (a) of FIG. 7, the land foundation structure 10 is mounted on the deck of the ship S using the lifting apparatus L. As shown in FIG. 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 above the stator 20 on land, the lower rotor 31b is lifted by the lifting device L to accommodate the stator 20 inside, The lower rotor 31b and the disk 50 are coupled using the coupling member 33b.

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

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 substructure 10 using the lifting device L, and the connecting member 33b is used to lift the upper rotor 32b. The lower rotor 31b and the upper rotor 32b are combined.

Accordingly, the rotor 30b of this embodiment has a two-stage assembly structure in which the lower rotor 31b and the upper rotor 32b are assembled by the coupling member 33b, thereby simplifying the assembly process by implementing the two-stage connection structure. Instead, the weight and height requirements of the crane can be improved.

The end plate 40 shown in FIG. 2 is provided at the open upper end of the rotor 30, and can be embodied in various embodiments. Description will be made with reference to FIG.

FIG. 8 is a diagram for explaining a first embodiment of the end plate 40 shown in FIG.

As shown in FIG. 8, the end plate 40a of the first embodiment may consist of a disc 41a and a stiffener 42a, and may be made of glass fiber reinforced plastic (GFRP) or carbon fiber reinforced plastic (CFRP).

The disc 41a may be divided into a central region 43a and an outer region 44a. The central region 43a may be a region corresponding to the open upper end of the rotor 30, and the outer region 44a may be a region extending outside the rotor 30, but is not limited thereto.

The central region 43a and the outer region 44a of the disk 41a may not be the same. For example, the central region 43a of the disc 41a may be radially GFRP-2AXIS 10t and the outer region 44a of the disc 41a may be radially GFRP-UD 30t.

The stiffeners 42a serve to reinforce the central region 43a of the disk 41a, and a plurality of stiffeners 42a may be radially extended from the center of the disk 41a to the edge of the central region 43a. It may be longitudinal GFRP-UD 10t.

In the above, the fiber directions and thickness values of the discs 41a and stiffeners 42a are merely examples, and it goes without saying that various lamination patterns and thicknesses can be applied.

Accordingly, the end plate 40a of the present embodiment is made of glass fiber reinforced plastic (GFRP) or carbon fiber reinforced plastic (CFRP), thereby reducing the weight of the end plate 40a and improving the structural performance of the wind power propulsion system 1. be able to.

The driving part 60 shown in FIG. 2 is installed on the stator 20 to generate power for rotating the rotor 30, and can be implemented in various embodiments. The driving portion 60a of the first embodiment will be described with reference to FIG. 9, the driving portion 60b of the second embodiment will be described with reference to FIG. 10, and the driving portion 60c of the third embodiment will be described with reference to FIG. to explain.

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

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

The motor 61 a may generate driving force and transmit it to the gear box 62 a and may be provided inside the stator 20 .

The gear box 62a is coupled with the motor 61a and incorporates various gears for transmitting the driving force required to rotate the drive shaft 63a, and may be provided inside the stator 20. The gearbox 62a may be a speed reducer.

Inside the gear box 62a of this embodiment are 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, a driven gear 65a that meshes with the drive gear 64a and rotates, A driven shaft 66a coupled with the driven gear 65a to support the rotation of the driven gear 65a may be provided.

The drive gear 64a and the driven gear 65a may be reduction gears having a reduction ratio of 6:1, but the present invention is not limited to this, and reduction gears having various reduction ratios can be applied.

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

In this case, the first driven shaft 66a1 is provided inside the gear box 62a, the lower part is rotatably coupled to the lower surface of the gear box 62a, and the upper part penetrates the upper surface of the gear box 62a and protrudes outside to form the second driven shaft. It may be provided to be coupled with 66a2.

The second driven shaft 66a2 is installed outside the gearbox 62a, has a lower portion coupled to an upper portion of the first driven shaft 66a1 by a coupling member 68a, and an upper portion penetrates the upper surface of the stator 20 and is coupled to the disk 50. may be provided as follows. The second driven shaft 66 a 2 is connected to the first driven shaft 66 a 1 to transmit rotational force to the disk 50 .

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

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

In this embodiment, the driving shaft 63a is rotated by the driving force of the motor 61a and is not a shaft to which a large axial force is applied. Bearings that prevent lateral forces or lateral movement of the drive shaft 63a, for example self-aligning bearings, can be applied.

An upper portion of the first driven shaft 66a1 may be rotatably coupled to the upper surface of the gearbox 62a by a third bearing B3, and a lower portion thereof may be rotatably coupled to the lower surface of the gearbox 62a by a fourth bearing B4.

In this embodiment, the first driven shaft 66a1 is not a shaft to which the driving force is directly transmitted from the motor 61a, nor is the driving force directly transmitted to the disk 50, and to which a large axial force is applied. The 3rd and 4th bearings B3 and B4 may be bearings capable of preventing lateral force of the first driven shaft 66a1, such as 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 a shaft that directly transmits the driving force to the disc 50, and is not a shaft to which many axial forces and lateral forces are applied. The bearing B5 may be a bearing capable of preventing axial force of the second driven shaft 66a2, such as a thrust bearing, and the sixth bearing B6 may be a bearing capable of preventing lateral force of the second driven shaft 66a2. , for example self-aligning bearings such as spherical roller bearings (SRB) can be applied.

As described above, the second driven shaft 66a2 receives a large amount of axial force and lateral force. There are difficulties in making a strong bond.

Therefore, in this embodiment, the bearing housing 67a can be fixedly installed inside the upper surface of the stator 20 as means for supporting 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 inside the upper surface of the stator 20, the second driven shaft 66a2 can withstand axial force and lateral force.

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

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

The driving portion 60b of the second embodiment differs from the driving portion 60a of the first embodiment in the installation position of the bearing housing 67b.

That is, the bearing housing 67b of this embodiment is provided outside the upper surface of the stator 20, and the bearing housing 67a of the first embodiment is provided inside the upper surface of the stator 20. essentially the same.

Since other constituent elements are structurally the same as those of the first embodiment, the same reference numerals are used. Therefore, in order to avoid duplication of description, the description of the same configuration is omitted here.

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

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

The motor 61 c generates driving force and transmits it to the gear box 62 c and may be provided inside the upper surface of the stator 20 .

The gear box 62c is coupled with the motor 61c and incorporates various gears for transmitting the driving force required to rotate the drive shaft 63c. The gearbox 62c may be a speed reducer.

Inside the gear box 62c of this embodiment are 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, a driven gear 65c that meshes with the drive gear 64c and rotates, A driven shaft 66c coupled with 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 drive gear 64c and the driven gear 65c may be reduction gears having a reduction ratio of 6:1, but the invention is not limited to this, and reduction gears having various reduction ratios can be applied.

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

Specifically, the driving shaft 63c may have an upper portion rotatably coupled to the upper surface of the gearbox 62c by a seventh bearing B7 and a lower portion rotatably coupled to the lower surface of the gearbox 62c by an eighth bearing B8.

In this embodiment, the drive shaft 63c is a shaft that is rotated by the driving force of the motor 61c and is not a shaft to which a large amount of axial force is applied. Bearings that can prevent lateral forces or lateral movement of the drive shaft 63c, such as self-aligning bearings, can be applied.

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

In this embodiment, the driven shaft 66c is a shaft that directly transmits a driving force to the disc 50, and is a shaft to which a large amount of axial force and lateral force are applied. A bearing capable of preventing axial force of the driven shaft 66c, such as a thrust bearing, may be applied, and the eleventh bearing B11 may be a bearing capable of preventing lateral force of the driven shaft 66c, such as a self-aligning bearing. can be applied.

The tenth and eleventh bearings B10 and B11 are arranged in series with the driven shaft 66c on the bottom surface of the gear box 62c. 11 bearings B10, B11 may be provided. 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 fixedly installed inside the gearbox 62c, and the 10th and 11th bearings B10 and B11 are installed. can also

As described above, the driven shaft 66c in this embodiment is a shaft that directly transmits the driving force to the disk 50, and a large amount of axial force and lateral force is applied thereto. In addition, since the length of the driven shaft 66c itself is short, a bearing capable of preventing lateral force of the driven shaft 66c, such as a self-aligning bearing, can be applied to the ninth bearing B9.

The lower bearing part 70 shown in FIG. 2 suppresses the lateral motion of the rotor 30 rotated by the power of the driving part 60, and can be embodied in various embodiments. 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 70c of the third embodiment will be described. 18-20, the lower bearing portion 70d of the fourth embodiment will be described with reference to FIGS. 21-22, and the lower bearing portion 70e of the fifth embodiment will be described with reference to FIGS. 23-25. 26 to 27, the lower bearing portion 70f of the sixth embodiment will be described.

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

As shown in FIGS. 12 to 14, the lower bearing portion 70a of the first embodiment may consist of an assembly of bearing units 71a and may be provided on the substructure 10. FIG.

The bearing unit 71a may be provided on the substructure 10 and may consist of a guide bearing 71a1 and a bearing support base 71a2.

The guide bearing 71a1 is installed on the upper end of the bearing supporter 71a2 and can guide the rotation of the rotor 30. As shown in FIG.

The bearing supporter 71a2 supports the guide bearing 71a1 provided on the upper end and may be provided on the substructure 10 .

A plurality of bearing units 71a are arranged along the inner peripheral surface of the rotor 30 at regular intervals to form the lower bearing portion 70a. The bearing support 71 a 2 may be provided on the substructure 10 without overlapping the rotor 30 and the stator 20 .

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

The passageway 81 can be secured by making the diameter of the stator 20 smaller than the existing one. For example, if the diameter of the existing stator is 4 to 4.5 m, the diameter of the stator 20 of this embodiment can be reduced to 2 to 2.5 m to secure the passage 81 .

Although the diameter of the stator 20 can be reduced as a whole, the diameter of the upper portion where the driving unit 60 is installed as shown in FIG. preferably as large as the diameter of the

As a result, the bearing unit 71a of the lower bearing portion 70a of the present embodiment can be easily manufactured, and the number of installation steps can be reduced by directly installing the bearing support base 71a2 on the foundation structure 10, and the traffic path 81 can be reduced. Maintenance can be facilitated by securing it, and the weight of the stator 20 can be reduced.

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

As shown in FIGS. 15 to 17, the lower bearing portion 70b of the second embodiment may consist of an assembly of bearing units 71b and may be provided on the substructure 10. As shown in FIGS.

The bearing unit 71b may be provided on the substructure 10 and may consist of a guide bearing 71b1 and a bearing support base 71b2.

The guide bearing 71b1 is installed on the upper end of the bearing supporter 71b2 and can guide the rotation of the rotor 30. As shown in FIG.

The bearing support 71b2 supports the guide bearing 71b1 provided on the upper end and may be provided on the substructure 10 .

A plurality of bearing units 71b are arranged along the inner circumference of the rotor 30 at regular intervals to form the lower bearing part 70b. However, the bearing support 71b2 may be provided on the substructure 10 so as to overlap the stator 20. As shown in FIG.

The stator 20 of the present embodiment has an opening 82 formed at a constant interval at the lower end, and the bearing unit 71b may be provided in the opening 82 so that the bearing unit 71b overlaps the stator 20. .

As a result, the bearing unit 71b of the lower bearing portion 70b of the present embodiment can be easily manufactured, and the installation man-hours can be reduced by directly providing the bearing support 71b2 to the base structure 10. Therefore, maintenance of the bearing unit 71b can be facilitated.

FIG. 18 is a partial view of the wind power propulsion system 1 for explaining the third embodiment of the lower bearing portion 70 shown in FIG. 2, and FIG. 19 is a bearing unit 71c that constitutes the lower bearing portion 70c of the third embodiment. 20A to 20C are diagrams showing a state in which the bearing unit 71c of FIG. 19 is provided in the stator 20, where (a) 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 portion 70c of the third embodiment may be an assembly of bearing units 71c and may be provided on the stator 20. FIG.

The bearing unit 71c is provided on the stator 20 and may consist of 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 the position where the bearing unit 71c is provided.

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

A pair of first joint plates 71c2 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 being coupled to the bearing shaft 71c11, and may have a shape in which the extended ends are vertically bent. A pair of first joint plates 71c2 may be provided with a plurality of first bolt holes 71c21 for bolting to the second joint plate 71c3.

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

The bearing units 71c are provided on the stator 20 by bolting the first and second joint plates 71c2 and 71c3, and are arranged along the inner peripheral surface of the rotor 30 at regular intervals to form a lower bearing portion 70c. At this time, the guide bearing 71c1 is fixed by the first and second joint plates 71c2 and 71c3 as shown in FIGS. 20(a) to 20(c). can protrude outward through the through and closely contact the inner peripheral surface of the rotor 30 .

Accordingly, since the lower bearing part 70c of the present embodiment is manufactured by modularizing the bearing unit 71c, it is not only easy to manufacture, but also the installation man-hours can be reduced. Safety can be ensured.

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

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

The bearing unit 71d is provided on the stator 20 and may consist of 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 the position where the bearing unit 71d is provided.

The guide bearing 71d1 may be provided in the joint box 71d2 and can guide the rotation of the rotor 30. As shown in FIG.

The joint box 71d2 may be provided along the edge of the window 84 inside the stator 20, and can fix the guide bearing 71d1 with a part of the guide bearing 71d1 protruding outside. A plurality of first bolt holes 71d21 for bolting to the stator 20 may be provided in the joint box 71d2.

The stator 20 may be provided with windows 84 at regular intervals at the position where the bearing unit 71d is provided, and correspond to the first bolt holes 71d21 along the edges of the windows 84 for bolting with the joint box 71d2. A second bolt hole 71d22 may be provided.

The bearing unit 71d is provided on the stator 20 by bolting the joint box 71d2, and a plurality of the bearing units 71d are arranged along the inner peripheral surface of the rotor 30 at regular intervals to form the lower bearing portion 70d. A portion of the guide bearing 71d1 protrudes outward through the window 84 of the stator 20 and can be in close contact with the inner peripheral surface of the rotor 30 when the joint box 71d2 is fixed to the stator 20 .

Accordingly, since the lower bearing part 70d of the present embodiment is manufactured by modularizing the bearing unit 71d, it is not only easy to manufacture, but also the installation man-hours can be reduced. Safety can be ensured.

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

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, or may be provided on the stator 20. As shown in FIGS.

The bearing unit 71e is provided on the stator 20 and may be composed of a guide bearing 71e1 and a guide rail 71e2.

The guide bearing 71 e 1 may be provided along the outer peripheral surface of the stator 20 and can guide the rotation of the rotor 30 .

The guide bearing 71e1 may be an annular single bearing, for example a journal type or ball/roller type bearing.

Considering that the annular guide bearing 71e1 is currently the largest size bearing that can be installed in a 2.5m diameter structure, the stator 20 may be at least 2.5m in diameter. The stator 20 may have a diameter of 2.5 m or less as a whole, and the upper part where the driving part 60 is installed as shown in FIG. is preferably as large as the existing diameter (eg 4-4.5m).

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 can guide the guide bearing 71e1. At this time, the guide rail 71 e 2 may have various protrusion heights, and the protrusion 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 can correspond to the diameter of the guide bearings 71e1 provided on the outer peripheral surface of the stator 20, and the projection height of the guide rails 71e2. The maximum diameter of rotor 30 may be determined accordingly.

Normally, the larger the diameter of the rotor 30, the better the wind propulsion capability. It enables the function of the part 70e.

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

Accordingly, the lower bearing part 70e of the present embodiment can ensure structural safety by applying a single annular bearing to the guide bearing 71e1 and providing it to 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, the wind propulsion performance can be easily improved.

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

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

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

The guide bearing 71f1 may be provided with an arm 71f2 on one side and can guide the rotation of the rotor 30 .

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

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

For example, when the diameter of the stator 20 is changed while the diameter of the rotor 30 is fixed, the function of the lower bearing part 70f is performed by adjusting the protrusion height of the guide rail 71f3 according to the changed diameter. make it possible. The same is true when the diameter of the rotor 30 is changed while the diameter of the stator 20 is fixed.

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

Accordingly, the rotor 30 or the stator 20 can be manufactured to a desired size by adjusting the height of the guide rail 71f3 of the lower bearing part 70f of the present embodiment, thereby improving the wind propulsion performance. can be easily improved.

As described above, the wind propulsion system 1 of the present invention includes the stator 20, the rotor 30, the end plate 40, the disk 50, the drive section 60, and the lower bearing section 70 shown in FIG. 27, but it is not limited to the embodiments for each configuration, and a combination of the above embodiments or a combination of at least one of the above embodiments and a known technique can be used in still other embodiments. can be included as

Although the present invention has been described above with a focus on the embodiments of the present invention, this is merely an example and does not limit the present invention. It will be understood that various combinations, modifications and applications not illustrated in the examples are possible without departing from the essential technical contents of the examples. Therefore, it should be construed that the present invention includes the technical content of variations and applications that can be easily derived from the embodiments of 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 plate 31a22 Second plate 31a23 Third plate 31a21 Fourth plate 31a3 Male connector 31a31 Fifth plate 31a32 Sixth plate 31a4 Fitting space 31b Lower rotor 31b1 First edge panel 32b Upper rotor 32b1 Second edge panel 33b Coupling member 33b1 First clamp plate 33b2 Second clamp plate 33b3 First bolt member 33b4 Second bolt member 33b5 First bonding member 33b6 Second bonding member 40, 40a End plate 41a Disc 42a Stiffener 43a Central region 44a Outer region 50 Disks 60, 60a, 60b, 60c Drive units 61a, 61c Motors 62a, 62c Gearboxes 63a, 63c Drive shaft 64a, 64c drive gears 65a, 65c driven gears 66a, 66c driven shaft 66a1 first driven shaft 66a2 second driven shafts 67a, 67b bearing housing 68a coupling members 70, 70a, 70b, 70c, 70d, 70e, 70f lower bearing portion 71a, 71b, 71c, 71d, 71e, 71f bearing units 71a1, 71b1, 71c1, 71d1, 71e1, 71f1 guide bearing 71c11 bearing shafts 71a2, 71b2 bearing support 71c2 first joint plate 71c21 first bolt hole 71c3 second joint plate 71c31 Second bolt hole 71d2 Joint box 71d21 First bolt hole 71d22 Second bolt hole 71e2 Guide rail 71f2 Arm 71f3 Guide rail 81 Passageway 82 Openings 83, 84 Windows B1 to B11 First to eleventh bearings S Vessel L Lifting device

Claims (9)

a stator provided vertically on the deck;
a rotor provided in a columnar shape so as to cover the outside of the stator;
a driving unit for transmitting rotational power to the rotor through a disc connected to the rotor;
a lower bearing portion provided at the bottom of the rotor to restrain lateral movement of the rotor;
The drive unit is
a drive shaft rotated by a motor, a drive gear provided on the drive shaft, a driven gear meshing with the drive gear to rotate, a first driven shaft coupled to the driven gear to support rotation of the driven gear, and a gear box provided inside the stator,
a bearing housing supporting a second driven shaft coupled to the first driven shaft by a coupling member to transmit rotational force to the disc;
The rotor is
a lower rotor provided with a ring-shaped first edge panel extending inwardly at its upper end for a certain length and having a space for accommodating the disc;
an upper rotor provided with a ring-shaped second edge panel extending inwardly at a lower end for a certain length and having a space for accommodating the disk;
A wind propulsion system comprising: the lower rotor, the upper rotor, and a coupling member coupling the disk. The above bearing housing is
The wind propulsion system according to claim 1, wherein the wind propulsion system is provided inside the top surface of the stator or outside the top surface of the stator. The drive shaft
an upper portion rotatably coupled to the upper surface of the gearbox by a first bearing;
a lower portion is rotatably coupled to the lower surface of the gearbox by a second bearing;
The first and second bearings are
2. The wind power propulsion system according to claim 1, wherein the bearing is capable of preventing lateral force of the drive shaft or lateral movement of the drive shaft. The first driven shaft is
a third bearing rotatably couples the top to the top of the gearbox;
The lower part is rotatably coupled to the lower surface of the gearbox by a fourth bearing,
The third and fourth bearings are
The wind power propulsion system according to claim 1, characterized in that it is a bearing capable of preventing lateral force on the first driven shaft. The second driven shaft is
rotatably coupled to the upper surface of the stator by fifth and sixth bearings arranged in series;
The fifth bearing is
A bearing capable of preventing the axial force of the second driven shaft,
The sixth bearing is
2. The wind propulsion system according to claim 1, wherein the bearing is capable of preventing lateral force on the second driven shaft. The connecting member is
a first clamp plate supporting the lower surface of the first edge panel and the lower surface of the disk;
a second clamp plate supporting the top surface of the first edge panel and the top surface of the disk;
a first bolt member that fixes the first and second clamp plates and the disk;
The wind propulsion system of claim 1, including a second bolt member securing said first edge panel and said second edge panel. The connecting member is
a first bonding member disposed between the first edge panel and the second clamp plate;
7. The wind propulsion system of claim 6, further comprising a second bonding member provided between said second edge panel and said second clamp plate. Loading the ground foundation structure on the deck using a lifting device,
On land, the disk and the drive unit are installed above the stator,
The lower rotor is lifted by the lifting device to accommodate the stator inside,
connecting the lower rotor and the disk using the connecting member;
mounting the lower rotor housing the stator on the foundation structure using the lifting device;
aligning an upper rotor on land with the lifting device on top of the lower rotor mounted on the substructure;
The wind power propulsion system according to claim 1, wherein the connecting member is used to connect the lower rotor and the upper rotor. A ship equipped with the wind power propulsion system according to any one of claims 1 to 8.

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