KR20200111436A - THRUSTER with fOLDABLE wing AND VESSEL INCLUDING THE SAME - Google Patents

Abstract

The present invention relates to a propulsion device including foldable auxiliary wings and a ship having the same. According to an embodiment of the present invention, the propulsion device includes: a plurality of first auxiliary wings attached to be foldable in a longitudinal direction of the ship; and/or a plurality of second auxiliary wings attached to be foldable in a vertical direction of the ship. Therefore, the propulsion device can improve maneuvering performance.

Description

A thruster including a folding auxiliary wing and a ship equipped with the same {THRUSTER with fOLDABLE wing AND VESSEL INCLUDING THE SAME}

The present invention relates to a propeller including a folding auxiliary wing and a ship having the same, and more specifically, a pod-type propeller capable of turning 360 degrees, including a folding auxiliary wing, and maneuvering such as turning performance and braking performance of a ship having the same The present invention relates to a propeller capable of improving performance, preventing rolling of the ship or increasing lift, and a ship having the same.

In ships, the DP (Dynamic Position) system is a system that fixes the position of the ship through the use of a propeller and positioning using GPS (Global Positioning System) without using the existing mooring device.

Unlike offshore structures that perform submarine drilling while anchored at a specific location, the self-positioning system is a drill ship that can perform drilling while moving to a location, or it can be operated independently while breaking ice in the polar region. It is provided on ice breakers and the like.

The propeller used in the self-positioning system is an azimuth type propeller or a pod type propeller, which is an all-directional propeller capable of turning the propeller 360 degrees, for example, azimuth thruster, azipod. Light is used, and this allows the ship to propel freely, propel backward, or rotate. On the other hand, the azimuth type propeller or pod type propeller is a variety of ships including drip ships and icebreakers, as well as shuttle tankers, floating production storage offloading (FPSO), polar sailing cargo ships and passenger ships, due to various advantages such as maneuverability. It is used for, and along with this, the improvement of propulsion performance is further required.

1 is a perspective view of a conventional azimuth type propeller or pod type propeller. As shown, the propulsion device 10 according to the prior art includes a propulsion module 11 for generating a propulsion force, a steering module 12 for changing the rotation direction of the propulsion module 11, It includes a slip ring unit 13 for transmitting power and control signals to the propulsion module 11 and a cooling air unit 14 for cooling the propulsion module 11.

In addition, the thruster 10 includes a gravity tank 15 that supplies lubricant to the steering module 12 by gravity, and a hydraulic power supply unit that supplies hydraulic pressure to drive the steering module 12. unit; 16), and in addition, an oil treatment unit (17), an air control unit (18), a local back up unit (19), an interface unit ( Interface unit; includes devices such as 20).

FIG. 2 is a plan view showing an arrangement of an azimuth-type propeller or a pod-type thruster in a conventional ship, and FIG. 3 is a side cross-sectional view showing an arrangement of an azimuth-type or pod-type propeller in a conventional ship. As shown, the ship 30 having an azimuth-type propeller or pod-type propeller according to the prior art is provided with a propulsion device 10 on both sides of the hull 31, respectively, the assistance of the azimuth-type propulsion device 10 Each of the machinery is arranged along the longitudinal direction L of the hull 31.

On the other hand, in the case of an azimuth type thruster or a pod type thruster (hereinafter, pod type thruster), it is possible to turn 360 degrees, and the direction of rotation is changed by driving the steering module. Even when a fine turning is required, the steering module is driven. There is a problem in that it takes a lot of time to operate the propeller in the reverse direction when a turning must be made through the vessel, and rapid braking of the vessel is required.

The technical problem to be achieved by the spirit of the present invention is to include a folding auxiliary wing in a pod-type thruster capable of turning 360 degrees, thereby improving steering performance such as turning performance and braking performance of a ship equipped with it, and preventing the ship from rolling. It is to provide a propeller and a ship equipped with the same that can increase or increase the lift.

In order to achieve the above object, the propeller including a folding auxiliary blade according to an embodiment of the present invention may include a plurality of first auxiliary blades attached to allow the longitudinal folding of the ship.

Here, the thruster including the folding auxiliary blade is a pod-type thruster, and a strut having one end connected to the hull of the ship; A thruster body connected to the other end of the strut; And a propeller provided at one end of the thruster body.

In addition, the first auxiliary wing may be mounted on one or more of a side surface of the strut and a side surface of the thruster body.

The first auxiliary wing may be used to assist the turning of the ship or to improve the braking force of the ship.

In addition, a propeller including a folding auxiliary blade according to an embodiment of the present invention may include a plurality of second auxiliary blades attached so as to be foldable in the vertical direction of the ship.

Here, the thruster including the folding auxiliary blade is a pod-type thruster, and a strut having one end connected to the hull of the ship; A thruster body connected to the other end of the strut; And a propeller provided at one end of the thruster body.

In addition, the second auxiliary blade may be mounted on one or more of a side surface of the strut and a side surface of the thruster body.

The second auxiliary wing may be used to prevent the ship from rolling or to increase the lift of the ship.

In addition, the ship according to an embodiment of the present invention may be provided with a thruster including the above-described folding auxiliary wings.

According to the present invention, it is possible to improve maneuvering performance, such as turning performance and braking performance, of a ship equipped with a folding auxiliary wing in a pod-type propeller capable of turning 360 degrees, and preventing the ship from rolling or increasing the lift force. have.

In addition, the auxiliary wing can be opened only when necessary and the auxiliary wing can be folded when not necessary, reducing the resistance caused by the auxiliary wing.

1 is a perspective view of an azimuth type thruster or a pod type thruster according to the prior art.
2 is a plan view showing an arrangement of an azimuth type propeller or pod type propeller in a ship according to the prior art.
3 is a side cross-sectional view showing the arrangement of FIG. 2.
4 is an exemplary view showing the configuration of a propeller including a folding auxiliary wing according to an embodiment of the present invention.
5 (a) is an exemplary view showing a state in which the first auxiliary wings 102-L1, L2, R1, and R2 are unfolded.
5(b) is an exemplary view showing a state in which the second auxiliary wings 104-L1, L2, R1, and R2 are unfolded.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art may easily implement the present invention. The present invention may be implemented in various different forms, and is not limited to the embodiments described herein.

4 is an exemplary view showing the configuration of a propeller including a folding auxiliary wing according to an embodiment of the present invention.

4, the thruster 110 is provided in the lower stern of the hull of the ship 100 and is provided to simultaneously perform a propulsion function and a steering function to propel the ship, and the strut 112, the propeller body 114, and the propeller It may include (130).

Strut 112 has one end connected to the hull of the vessel 100, the other end may be connected to the thruster body 114. In addition, the strut 112 may be provided with both the first auxiliary blade 102 and the second auxiliary blade 104, or only one of the first auxiliary blade 102 or the second auxiliary blade 104 may be installed. . As an embodiment, the strut 112 may be used for installation and support of the thruster body 114 to the hull of the ship 100 so as to be rotatable about one axis.

The thruster body 114 is connected at one end to the other end of the strut 112 connected to the hull of the ship 100. The thruster body 114 may be provided with both the first auxiliary blade 102 and the second auxiliary blade 104, or only one of the first auxiliary blade 102 or the second auxiliary blade 104 may be installed. As an embodiment, the propeller body 114 has a streamlined shape of a pod shape as a whole, and a propeller 130 for propelling the vessel 100 is provided at one end, and the propeller 130 is rotated inside. A motor (not shown) may be provided.

The propeller 130 may provide a propulsion force to the ship 100 by rotating by a motor installed inside the propeller body 114.

For example, the thruster 110 is a pod-type thruster capable of turning 360 degrees, and may include, but is not limited to, azipod, SSP, and Mermaid. In addition, the ship 100 with the propulsion unit 110 installed is not only a drill ship or an ice breaker, but also a shuttle tanker, a liquefied natural gas carrier, and an polar sailing cargo ship or passenger ship. It can be applied to various ships including, and the propulsion unit 110 may be installed in a number of hulls according to the structure or function of the ship 100, and may be disposed in the longitudinal direction of the ship 100 or in the width direction. have.

The thruster 110 includes a folding auxiliary wing, and the left/right side of the strut 112 and the thruster body 114, the strut 112 or the left/right side of the thruster body 114 so as to be folded in the first direction. It may include at least two first auxiliary wings 102 attached to the right side. As an embodiment, the first direction may include a longitudinal direction of the vessel 100. For example, the first auxiliary wing 102 may be used for assisting the turning of the ship 100 and may provide a braking force to the ship 100. That is, the first auxiliary blade 102 can assist the turning of the ship 100 by rotating to match the rotation direction of the ship 100 when the rotation of the ship 100 is required. When an emergency stop is required or the speed of the vessel 100 needs to be rapidly reduced, it may be spread vertically in the longitudinal direction of the vessel 100 to temporarily increase the resistance force to provide a braking force to the vessel 100.

As an embodiment, the first auxiliary blade 102 is shown to be installed on both the strut 112 and the thruster body 114, but is not limited thereto and may be installed only on the strut 112, and the thruster body 114 ) May be installed only.

In addition, the thruster 110 is a strut 112 and at least two second attached to the left / right side of the thruster body 114, the strut 112 or the left / right side of the thruster body 114 so as to be foldable in the second direction. It may also include 2 auxiliary wings 104. As an embodiment, the second direction may include a vertical direction of the vessel 100. For example, the second auxiliary wing 104 may serve to increase the propulsion efficiency by increasing the lift of the ship 100, and to reduce it when rolling or pitching of the ship 100 occurs. It can also be used. That is, the second auxiliary wing 104 is spread vertically in the vertical direction of the vessel 100 when lifting or rolling or pitching occurs in the vessel 100 to increase the lift of the vessel 100 It can also reduce the rolling or pitching phenomenon.

As an embodiment, the second auxiliary blade 104 is shown to be installed on both the strut 112 and the thruster body 114, but is not limited thereto and may be installed only on the strut 112, and the thruster body 114 ) May be installed only.

In addition, although it is shown that both the first auxiliary blade 102 and the second auxiliary blade 104 are installed in the propulsion unit 110, the first auxiliary blade used for the purpose of assisting the turning of the ship 100 is not limited thereto. The auxiliary wing 102 may be installed on the left/right side of the strut 112 and the thruster body 114, on the left/right side of the strut 112 or the thruster body 114, to prevent rolling of the ship 100 Only the second auxiliary wing 104 used for the purpose may be installed on the left/right side of the strut 112 and the thruster body 114, on the left/right side of the strut 112 or the thruster body 114.

The first auxiliary blade 102 and the second auxiliary blade 104 are able to spread the blade only when necessary by a motor (not shown) installed inside the propeller 110 and fold the blade when not necessary, so that the ship 100 ), it is possible to reduce the resistance during general voyage, and if auxiliary wings are used, it is possible to improve the stopping performance, turning performance, and navigation performance of the ship.

Figure 5 (a) shows a state in which the first auxiliary wing (102-L1, L2, R1, R2) is unfolded, Figure 5 (b) is the second auxiliary wing (104-L1, L2, R1, R2) is unfolded This is an exemplary view viewed from the stern or fore side showing the state.

Referring to Figure 5 (a), the first auxiliary wings (102-L1, L2, R1, R2) may be symmetrically installed on the left / right side of the strut 112 and the thruster body 114, each one. However, the number of the first auxiliary blades 102-L1, L2, R1, and R2 installed on the strut 112 and the thruster body 114 is not limited thereto, and the left/right side of the strut 112 and the thruster body 114 At least one can be installed on the right side. The first auxiliary wings 102-L1, L2, R1, R2 may be used for assisting the turning of the ship 100, and may be folded or unfolded in the longitudinal direction of the ship 100.

As an embodiment, if the first auxiliary blade (102-L1, L2, R1, R2) rotates in accordance with the rotation direction of the vessel when the vessel 100 turns, compared to the case in which only the propeller 110 turns Steering and turning power for the vessel 100 may be further improved, and when a fine turning is required, it is possible to turn using only the first auxiliary wing without turning the thruster 110 itself. For example, when the ship intends to turn to port, the first auxiliary blade 102-L1, L2, R1, R2 is any one of the first auxiliary blades 102-L1 or L2 disposed near the center of rotation of the turning. ) Is unfolded, and the other first auxiliary wing 102-R1 or R2 may be kept folded. Therefore, when the vessel 100 turns to port with respect to the navigation direction, the strut 112 and the first auxiliary blade 102-L1 or L2 installed on the left side of the thruster body 114 are unfolded, and the first auxiliary blade installed on the right side Wings 102-R1 or R2 can be folded.

As an embodiment, the first auxiliary blade (102-L1, L2, R1, R2) is shown to be installed on both the strut 112 and the thruster body 114, but is not limited thereto, and the first auxiliary blade 102- L1 and R1 may be installed only on the strut 112, and the first auxiliary wings 102-L2 and R2 may be installed only on the thruster body 114.

As an embodiment, the first auxiliary wing (102-L1, L2, R1, R2) may be used for the purpose of stopping the ship in an emergency. For example, when the first auxiliary wing (102-L1, L2, R1, R2) is extended 90 degrees in the left/right direction of the strut 112 and the thruster body 114, respectively, with respect to the navigation direction of the ship 100 Since it is possible to form a vertically wide plate-shaped resistance, it is possible to reduce the moving distance required for the ship 100 to stop in an emergency.

Referring to Figure 5 (b), the second auxiliary blades (104-L1, L2, R1, R2) may be installed one by one on the left / right side of the strut 112 and the thruster body 114, respectively. However, the number of the strut 112 and the second auxiliary blades 104-L1, L2, R1, and R2 installed on the thruster body 114 is not limited thereto, and the left/right side of the strut 112 and the thruster body 114 At least one can be installed on the right side. The second auxiliary wings 104-L1, L2, R1, and R2 may be used for preventing the rolling of the ship 100, and may be folded or unfolded in the vertical direction of the ship 100.

In the case of the sailing ship 100, even if the ship 100 is inclined sideways by external force, due to the resilience force, the hull rotates in the direction of the center of gravity and returns to a vertical position, and can be tilted to the opposite side and shake left and right. It is called. Here, the time required for one left and right shake is called the rolling cycle. In general, the value of the metacenter (center of the slope) height (GM), that is, the greater the resilience, the smaller the period, but it is likely to cause seasickness due to severe fluctuations. shall. As a method of reducing rolling, a bilge keel, an anti-sway tank, a stabilizer or the like may be employed.

When rolling occurs in the vessel 100, the strut 112 and the second auxiliary blades 104-L1, L2, R1, R2 installed on the left/right sides of the strut 112 and the thruster body 114 are used as the strut 112 and the thruster body ( When spreading 90 degrees in the vertical direction of 114), it is possible to form a wide plate-shaped resistance vertically with respect to the vertical direction of the ship 100, thereby reducing the time required to reduce the rolling phenomenon occurring in the ship 100.

As an embodiment, the second auxiliary blades 104-L1, L2, R1, and R2 are shown to be installed on both the strut 112 and the thruster body 114, but are not limited thereto, and the second auxiliary blade 104- L1 and R1 may be installed only on the strut 112, and the second auxiliary wings 104-L2 and R2 may be installed only on the thruster body 114.

In the present specification, the present invention has been described in connection with some embodiments, but it should be understood that various modifications and changes can be made without departing from the spirit and scope of the present invention that can be understood by those skilled in the art to which the present invention belongs. something to do. In addition, such modifications and changes should be considered to fall within the scope of the claims appended to this specification.

100: ship 110: thruster
102-L1, L2, R1, R2: first auxiliary wing
104-L1, L2, R1, R2: second auxiliary wing
112: strut 114: thruster body
130: propeller

Claims (9)

A thruster comprising a folding auxiliary wing,
A propeller comprising a folding auxiliary blade, including a plurality of first auxiliary blades attached to be foldable in the longitudinal direction of the ship. The method of claim 1,
The thruster including the folding auxiliary blade is a pod-type thruster,
Struts once connected to the ship's hull;
A thruster body connected to the other end of the strut; And
A propeller including a folding auxiliary wing including a propeller provided at one end of the propeller body. The method of claim 2,
The first auxiliary wing,
A thruster including a folding auxiliary blade mounted on at least one of a side surface of the strut and a side surface of the thruster body. The method of claim 3,
The first auxiliary wing
A propeller including a folding auxiliary wing, which is used to assist the turning of the ship or to improve the braking force of the ship. A thruster comprising a folding auxiliary wing,
A propeller comprising a folding auxiliary blade, including a plurality of second auxiliary blades attached to be foldable in the vertical direction of the ship. The method of claim 5,
The thruster including the folding auxiliary blade is a pod-type thruster,
Struts once connected to the ship's hull;
A thruster body connected to the other end of the strut; And
A propeller including a folding auxiliary wing including a propeller provided at one end of the propeller body. The method of claim 6,
The second auxiliary wing,
A thruster including a folding auxiliary blade mounted on at least one of a side surface of the strut and a side surface of the thruster body. The method of claim 7,
The second auxiliary wing
A propeller including a folding auxiliary wing, which is used for preventing the rolling of the ship or increasing the lift of the ship. A ship with a propeller comprising a folding auxiliary wing according to any one of claims 1 to 8.

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