KR20120118921A - Opening and closing apparatus of thruster tunnel and ship having the same - Google Patents

Abstract

PURPOSE: A thrust tunnel opening/closing device and a ship with the same are provided to maintain a refracted state in which an opening/closing member is correspondent to a curved surface of a hull in a closed state, thereby minimizing the resistance with respect to a fluid. CONSTITUTION: A thrust tunnel opening/closing device comprises a refractive opening/closing member(10) and a winding device(20). The refractive opening/closing member opens/closes an opening of a thrust tunnel by a sliding mode. The refractive opening/closing member is refracted correspondently to a curved surface of a hull when the refractive opening/closing member is opened. The winding device winds or unwinds the opening/closing member for opening/closing the opening of the thrust tunnel.

Description

Thrust Tunnel Opening and Closing Vessels {OPENING AND CLOSING APPARATUS OF THRUSTER TUNNEL AND SHIP HAVING THE SAME}

The present invention relates to a thruster tunnel opening and closing device, and more particularly, to a thruster tunnel opening and closing device capable of fully opening and closing the tunnel opening and refraction opening and closing according to the hull curved surface and a ship having the same.

The ship is provided with a thruster which is installed on the side of the bow or stern to increase steering stability or to be easily docked to the pier and provides lateral thrust force.

As an example, a conventional tunnel thruster includes a tunnel formed to penetrate the port and starboard of a ship, and a propeller type propeller installed in the tunnel and capable of forward rotation and reverse rotation. By operating the propeller inside the tunnel, it is possible to generate a propulsion force in the port or starboard direction of the ship.

However, since the thrust tunnel is open on both sides of such a vessel, there is a problem in that the vessel acts as a resistance to the fluid when going straight. That is, when seawater enters the thruster tunnel while the ship is in operation, disturbance of fluid occurs at the entrance of the tunnel. This phenomenon acts as a resistance and degrades the propulsion performance of the ship.

In order to solve such a problem, a switchgear that can open and close a thruster tunnel entrance has been proposed. When using thrusters, the entrance of the tunnel can be opened and closed when not in use.

However, the conventional thruster tunnel opening and closing device is difficult to completely open the tunnel inlet, so that the opening and closing device acts as a resistance during the operation of the thruster, thereby reducing the transverse thrust force. In addition, it is difficult to maintain the curved surface corresponding to the outer surface of the hull even when the tunnel inlet is closed, and there is a limit in reducing the propulsion resistance because a part has a resistance factor that protrudes out of the hull.

Embodiments of the present invention are possible to fully open and close the thruster tunnel opening, and the thruster tunnel opening and closing device capable of minimizing the resistance to the fluid in the closed state is possible to open and close the deflection corresponding to the hull curved surface and the ship having the same To provide.

According to an aspect of the invention, the opening and closing of the thruster tunnel opening and closing, the refractive opening and closing member that is refracted in response to the curvature of the hull when opening and closing; A thruster tunnel opening and closing apparatus including a winding device for winding or releasing the opening and closing member for opening and closing the tunnel opening may be provided.

The opening and closing device may include guide rails which are provided at both sides of the tunnel opening for guiding the opening and closing member and bent at a curvature corresponding to the outer surface of the hull.

The opening / closing member may include a plurality of panels connected to each other so as to be able to refract each other and having guide parts for entering both ends of the guide rails.

The winding device may include a rotating shaft installed in the hull, a winding member installed on the rotating shaft to wind the opening and closing member, and a motor for rotating the rotating shaft in a forward direction and a reverse direction.

The opening and closing device may further include a moving device installed in the hull to move the take-up device, and an installation space provided in the hull to move the take-up device in a movable manner.

The installation space may be provided with a guide for guiding the movement of the winding device, and a support for initial positioning and support of the winding device.

According to another aspect of the present invention, an opening and closing device for opening and closing a plurality of thruster tunnels penetrating the port and starboard of the hull, a plurality of refraction for opening and closing the opening of each tunnel while sliding in response to the curved surface of the hull Type opening and closing member; And a winding device for winding or releasing each of the opening and closing members for opening and closing the tunnel opening, wherein the winding device includes a plurality of winding members for winding or releasing the opening and closing members, respectively, to rotate the respective winding members. A thruster tunnel opening and closing apparatus may include a plurality of rotation shafts installed at a center of a winding member, at least one refractive connection apparatus for refractively connecting the plurality of rotation shafts, and a motor for rotating one of the plurality of rotation shafts.

According to another aspect of the invention, the refractive opening and closing member for opening and closing the opening of the thruster tunnel in a sliding manner while being deflected corresponding to the curved surface of the hull; Guide rails extending inwardly into the hull from both sides of the tunnel opening to guide the movement of the opening and closing member; A thruster tunnel opening and closing device including a driving device for moving the opening and closing member to open and close the tunnel opening may be provided.

The guide rail may be bent at a curvature corresponding to the outer surface of the hull at both sides of the tunnel opening, and may be extended after being bent in the longitudinal direction of the tunnel inside the hull.

The driving device may include a rotating shaft installed in the hull, a plurality of sprockets mounted on the rotating shaft to move the opening and closing member by rotation, and a motor rotating the rotating shaft in a forward direction and a reverse direction.

The opening and closing member may include a protective film covering its outer surface.

The opening and closing member may include a plurality of through holes.

The thruster tunnel opening and closing apparatus according to the embodiment of the present invention can fully close the tunnel opening and minimize the resistance to the fluid because the opening and closing member maintains the bent state corresponding to the curved surface in the closed state.

In addition, the thruster tunnel opening and closing apparatus according to the embodiment of the present invention can minimize the tunnel opening side resistance during the thruster operation since the tunnel opening can be completely opened.

In addition, the thruster tunnel opening and closing apparatus according to the embodiment of the present invention can open the opening of the tunnel by moving the winding device when the winding device is unable to wind up the opening and closing member.

1 is a perspective view of a thruster tunnel opening and closing apparatus according to a first embodiment of the present invention.
Figure 2 is a cross-sectional view of the thruster tunnel opening and closing apparatus according to the first embodiment of the present invention, showing a closed state of the tunnel opening.
Figure 3 is a cross-sectional view of the thruster tunnel opening and closing apparatus according to the first embodiment of the present invention, showing the open state of the tunnel opening.
4 is a cross-sectional view of the thruster tunnel opening and closing apparatus according to the first embodiment of the present invention, showing a state in which the moving device moves the winding device.
Figure 5 is a perspective view of the opening and closing member of the thruster tunnel opening and closing apparatus according to the first embodiment of the present invention, showing a protective film.
6 shows a thruster tunnel opening and closing apparatus according to a second embodiment of the present invention.
7 is a cross-sectional view of a thruster tunnel opening and closing apparatus according to a third embodiment of the present invention.
8 shows a thruster tunnel opening and closing apparatus according to a fourth embodiment of the present invention.
9 is a perspective view of a thruster tunnel opening and closing apparatus according to a fifth embodiment of the present invention.

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

1 to 5 show a thruster tunnel opening and closing apparatus according to a first embodiment of the present invention. As shown in FIG. 2, the thruster includes a tunnel 2 formed to penetrate the port and starboard on the bow or stern side of the hull 1, and a propeller-type propeller 3 provided in the tunnel 2. Such a thruster can generate a propulsion force in the port or starboard direction by the propeller type propeller 3 inside the tunnel 2 rotating in the forward or reverse direction.

As shown in FIGS. 1 and 2, the opening and closing device for opening and closing the thruster tunnel 2 includes an articulated opening and closing member 10 for opening and closing the opening of the tunnel 2 in a vertical sliding manner, and the opening and closing member 10. It includes a winding device 20 to wind up or unwind.

The opening / closing member 10 has a length longer than the diameter of the opening of the tunnel 2 and a plurality of panels 11 having guide portions 12 at both ends thereof are connected to each other by a link link 14 so as to be mutually refracted. This is to allow the plurality of long panels 11 to be refracted so that the opening / closing member 10 can be opened in a flat form or wound in a cylindrical form.

Guide portion 12 at both ends of the opening and closing member 10 may be formed relatively thin, the locking groove 13 may be formed to facilitate the winding device 20 to be described later wound. The panels 11 constituting the opening / closing member 10 may be made of a material such as aluminum alloy, stainless steel, and the like having high corrosion resistance. In addition, as illustrated in FIG. 5, the outer surfaces of the panels 11 may be covered by the protective film 15 to minimize corrosion by seawater. Even if the protective film 15 is covered, the protective film 15 may be a material capable of elastic deformation such as rubber, silicon, and the like so that the opening and closing member 10 may be bent.

As shown in FIG. 1, guide rails 17 for guiding opening and closing of the opening and closing member 10 are provided at both sides of the opening of the tunnel 2. The guide rail 17 is provided long on the both sides of the hull 1 side with the tunnel 2 opening therebetween, and is bent at a curvature corresponding to the outer surface of the hull 1. In addition, the guide 12 of both ends of the opening and closing member 10 is provided with a groove that can be guided.

The guide rail 17 guides the guides 12 at both ends of the opening and closing member 10 in a vertical sliding manner so that the opening and closing member 10 can open and close the opening of the tunnel 2. In addition, in the opening and closing process so that the opening and closing member 10 can be refracted in response to the curved surface of the hull (1). Here, although the guide portion 12 at both ends of the opening and closing member 10 is illustrated to enter and guide the guide rail 17, the opening and closing member 10 may be a shape without the guide portion 12. In this case, the guide rail 17 has a larger groove width, so that both ends of the opening / closing member 10 may be directly coupled to the guide rail 17.

On the side of the hull 1 in which the opening of the tunnel 2 is located, as shown in FIG. 1, a depression 5 recessed from the surface of the hull 1 is formed. The depression 5 may be formed to a depth slightly larger than the thickness of the opening and closing member 10 to accommodate the opening and closing member 10 when the opening and closing member 10 is closed. And the guide rail 17 may be provided after being integrally provided in the hull (1) on both sides of the depression (5) or manufactured separately.

2, the outer surface of the opening and closing member 10 maintains substantially the same height as the outer surface of the hull 1 in the state where the opening and closing member 10 closes the opening of the tunnel 2. This is to minimize the resistance to the fluid during operation.

As shown in FIG. 1 and FIG. 2, the winding device 20 is disposed in the installation space 6 provided above the inner tunnel 2 of the hull 1. The winding device 20 is the base member 21 disposed in the installation space 6, the rotary shaft 22 installed to rotate on the base member 21, the winding installed on the rotary shaft 22 to wind the opening and closing member 10. The member 23 and the base member 21 is provided, and includes a motor 24 for rotating the rotating shaft 22 in the forward and reverse directions.

The winding member 23 may be provided in a cylindrical shape having a length longer than the width of the opening and closing member 10, and the sprocket 25 is caught in the locking grooves 13 at both ends of the opening and closing member 10 so as to be easily wound up at both ends thereof. ) May be provided. The rotating shaft 22 may be rotatably supported by the support bracket 26 installed on the base member 21 to allow the winding member 23 to rotate in a state spaced apart from the base member 21. Since the motor 24 is required to be waterproof, it may be adopted as a submersible motor having a waterproof function or protected by a cover that is waterproof on the outside thereof.

Here, although the case in which the winding member 23 is cylindrical is illustrated, the shape of the winding member 23 is not limited thereto. In addition, if one end of the opening / closing member 10 is fixed to the winding member 23 by welding or bolting, a part such as the sprocket 25 may not be necessary.

As shown in FIG. 2, the opening / closing member 10 may enter the installation space 6 in which the winding device 20 is located through the communication port 8 on the side of the hull 1, one end of which is wound. By being coupled to the outer surface of the member 23 can be wound by the rotation of the winding member (23). In order to guide the smooth opening and closing of the opening and closing member 10, the guide rail 17 may extend a predetermined length from both sides of the opening of the tunnel 2 to the interior of the installation space 6.

In addition, the opening and closing device of the first embodiment may include a moving device 30 capable of pulling up and moving the winding device 20, as shown in Figs. To this end, the base member 21 of the winding device 20 is installed to be movable along the inclined guide surface 7 inside the installation space 6.

The moving device 30 may be composed of a drive device 31 such as a winch and a chain 32 connecting the drive device 31 and the base member 21 of the take-up device 20. This is because, when the opening and closing member 10 closes the opening of the tunnel 2 as shown in FIG. 2, a failure of the winding device 20 occurs, as shown in FIG. 4, the driving device 31 opens the chain 32. The winding winding device 20 is pulled up so that the opening of the tunnel 2 can be opened.

Here, the inclined guide surface 7 is installed inside the hull 1 for the movement of the winding device 20, but this guide surface 7 may be replaced by installing a separate rail in the hull 1. In addition, if the winding device 20 is moved by the rail, components such as the base member 21 may be excluded. The drive device 30 may also be replaced by a hydraulic cylinder.

On the bottom of the installation space 6, as shown in FIG. 3, the winding device 20 maintains a stable support state, and at the same time, the initial setting when the winding device 20 moves upwards and returns to its original position. A support 35 is provided to guide the initial position so as to maintain a fixed state in position. The support part 35 may protrude from the bottom of the installation space 6 to support an end of the base member 21. Here, the initial position means a place where the winding device 20 is located in the installation space 6 for the opening and closing operation of the usual opening and closing member 10.

Such a thruster tunnel opening and closing device may operate as follows.

As shown in FIG. 2, when closing the thruster tunnel 2, the winding member 23 rotates in the release direction (counterclockwise in FIG. 2), and the opening / closing member 10 is removed from the winding member 23. While opening, the opening in the tunnel 2 is closed. At this time, the opening and closing member 10 is lowered along the guide rail 17 having a curvature corresponding to the outer surface of the hull 1, the outer surface is refracted to correspond to the outer surface of the hull 1 in the closing process. Accordingly, the outer surface of the opening / closing member 10 may maintain a curved surface substantially corresponding to the outer surface of the hull 1 in the state where the opening of the tunnel 2 is completely closed. In addition, the outer surface of the opening and closing member 10 can maintain the same height as the outer surface of the hull (1).

As described above, the opening and closing device of the first embodiment maintains the curved surface and the height corresponding to the outer surface of the hull 1 in the state in which the opening of the tunnel 2 is closed, thereby minimizing the resistance to the fluid when the ship is operating.

As shown in FIG. 3, when opening the thruster tunnel 2, the winding member 23 is rotated in the winding direction (clockwise in FIG. 3), and the opening and closing member 10 is wound around the winding member 23. While opening the opening of the tunnel (2). At this time, the opening of the tunnel 2 is completely open, so that a sufficient transverse thrust force can be generated when the propeller 3 operates.

In the state of FIG. 2, when the winding device 20 is broken and the opening / closing member 10 cannot be wound, as shown in FIG. 4, the moving device 30 pulls up the winding device 20 to open and close the opening / closing member. The opening of the tunnel 2 can be opened by allowing the 10 to be pulled together with the winding device 20.

6 shows an opening and closing device according to a second embodiment. In the second embodiment, unlike the first embodiment, the opening and closing member 110 is installed to slide in the lateral direction of the hull 1 in the bow and stern direction (the longitudinal direction of the hull), and the winding device 120 is such an opening and closing member ( It is built in the hull (1) to open and close the opening of the tunnel (2) by winding or unwinding (110).

For this configuration, a depression 105 corresponding to the thickness of the opening / closing member 110 is formed on the side of the hull 1 where the opening of the tunnel 2 is located, as in the first embodiment, and the opening of the tunnel 2 is formed. Guide rails 117 may be provided at upper and lower sides of the recess 105, respectively. The guide rail 117 may also be bent in correspondence with the curved surface of the hull 1 when the opening / closing member 110 is closed by maintaining the curved state corresponding to the curved surface of the hull 1. In the case of the second embodiment, the winding device 120 may be fixed in one place inside the hull 1 without changing the position.

7 shows an opening and closing device according to a third embodiment. In the third embodiment, the guide rail 217 extends long from both sides of the opening of the tunnel 2 onto the tunnel 2 inside the hull 1. In addition, the driving device 220 is installed in the installation space 206 of the hull 1 to move the opening and closing member 210.

The guide rail 217 is bent at the curvature corresponding to the outer surface of the hull 1 at both sides of the opening of the tunnel 2 like in the first embodiment, and is bent in the longitudinal direction of the tunnel 2 inside the hull 1. Elongate. And the driving device 220 is a motor for rotating the rotating shaft 222, the plurality of sprockets 225, the rotating shaft 222 installed on the rotating shaft 222 so as to walk by moving the opening and closing member 210 ( Not shown). The sprocket 225 is positioned to be close to the bending portion of the guide rail 217, and moves the opening and closing member 210 by walking.

The opening and closing device may open and close the opening of the tunnel 2 by rotating the sprocket 225 in the reverse direction of the forward direction and moving the opening and closing member 210 in the opening or closing direction of the opening of the tunnel 2. In FIG. 7, reference numeral 219 denotes a sag prevention plate which prevents the opening and closing member 210 from sagging by supporting the opening and closing member 210 separately from the guide rail 217 when the opening and closing member 210 enters the hull 1. .

8 shows an opening and closing apparatus according to a fourth embodiment. The fourth embodiment is a case where a switchgear is employed in a ship having a plurality of thruster tunnels 2a, 2b, 2c penetrating the port and starboard of the hull. As shown, a plurality of refractive opening and closing member (311, 312, 313) for opening and closing the opening of each tunnel in the opening side of each of the tunnel (2a, 2b, 2c) to be deflected corresponding to the curved surface of the hull 1, A winding device 320 for winding or releasing each of these opening and closing members is installed.

 The winding device 320 includes a plurality of winding members 321, 322, 323 for winding or unwinding the opening and closing members 311, 312, 313, a plurality of rotation shafts 324, 325, 326 installed in the center of each of the winding members 321, 322, 323 to rotate the winding members. It includes a plurality of refractive connection devices 327,328 for refractively connecting the rotation axis of the motor, and a motor 329 for rotating one of the plurality of rotation axis.

This is to open and close the plurality of opening and closing members (311, 312, 313) at the same time by the driving of one motor (329). In addition, the installation angles of the opening and closing members 311, 312, 313 are changed according to the curved surface of the hull, so that the power of the motor 329 is transmitted by the refraction coupling devices 327, 328 even when the installation angles of the respective rotation shafts 324, 325, 326 are not identical. It is to open and close the opening and closing member (311, 312, 313) at the same time. Universal joints may be employed as the refractive connection devices 327 and 328.

8 illustrates a case in which one motor 329 simultaneously operates three open / close members, but the number of open / close members operated by one motor is not limited thereto and may be two or four or more.

9 is an opening and closing apparatus according to the fifth embodiment, in which a plurality of through holes 412 are formed in the opening and closing member 410. Other configurations can be configured substantially the same as the first embodiment.

The through holes 412 of the opening and closing member 410 may allow a certain amount of fluid flow into the tunnel 2 in the state in which the opening and closing member 410 is closed. However, since the through holes 412 are small in size, the influence on the flow of the fluid flowing through the side of the hull 1 is insignificant, while the weight of the opening / closing member 410 is remarkably reduced to drive the load of the winding device 420. Could contribute to reducing

Even if the resistance to the fluid increases due to the through holes 412, the opening and closing member 410 is also deflected to correspond to the curved surface of the hull 1 when it is closed and its outer surface maintains the same height as the outer surface of the hull 1. In addition, in terms of reducing the resistance of the fluid can exhibit an excellent effect compared to the conventional thruster tunnel opening and closing device.

1: hull, 2: thruster tunnel,
3: thruster propeller, 5: depression,
10: opening and closing member, 17: guide rail,
20: winding device, 21: base member,
22: rotating shaft, 23: winding member,
24: motor, 30: shifter.

Claims (13)

A refractive type opening / closing member which opens and closes the opening of the thruster tunnel in a sliding manner, and which is refracted in correspondence with the curved surface of the hull during opening and closing;
Thrust tunnel opening and closing device comprising a winding device for winding or unwinding the opening and closing member for opening and closing the tunnel opening. The method of claim 1,
Thrust tunnel opening and closing device provided on each side of the tunnel opening for guiding the opening and closing member and including a guide rail bent at a curvature corresponding to the outer surface of the hull. The method of claim 2,
The opening and closing member of the thruster tunnel opening and closing device including a plurality of panels having a guide portion that is connected to each other refractively and enters the guide rail. The method of claim 2,
The winding apparatus includes a rotating shaft installed in the hull, a winding member provided on the rotating shaft to wind the opening and closing member, and a thruster tunnel opening and closing device including a motor for rotating the rotating shaft in the forward and reverse directions. 5. The method according to any one of claims 1 to 4,
And a moving device installed in the hull to move the winding device, and an installation space provided in the hull so as to move the winding device in a movable manner. The method of claim 5,
Thrust tunnel opening and closing device, characterized in that the installation space is provided with a guide for guiding the movement of the winding device, and a support for initial positioning and support of the winding device. As a switchgear for opening and closing a plurality of thruster tunnels penetrating the port and starboard of the hull,
A plurality of refractive opening / closing members for opening and closing the openings of the tunnels in a sliding manner while being deflected corresponding to the curved surface of the hull;
A winding device for winding or releasing each opening / closing member for opening and closing the respective tunnel openings,
The winding apparatus includes a plurality of winding members for winding or releasing each of the opening and closing members, a plurality of rotation shafts installed at the center of each winding member to rotate the winding members, and at least one refraction connecting the plurality of rotation shafts in a refractive manner. Thrust tunnel opening and closing device comprising a connecting device, a motor for rotating one of the plurality of rotary shafts. A refractive type opening / closing member which opens and closes the opening of the thruster tunnel in a sliding manner, and which is refracted in correspondence with the curved surface of the hull during opening and closing;
Guide rails extending inwardly into the hull from both sides of the tunnel opening to guide the movement of the opening and closing member;
Thrust tunnel opening and closing device including a drive device for moving the opening and closing member for opening and closing the tunnel opening. 9. The method of claim 8,
The guide rail is bent at a curvature corresponding to the outer surface of the hull on both sides of the tunnel opening, the thrust tunnel opening and closing device, characterized in that the elongated after bending in the longitudinal direction of the tunnel inside the hull. 10. The method of claim 9,
The drive device includes a rotating shaft installed in the hull, a plurality of sprockets installed on the rotating shaft to move the opening and closing member by the rotation, and a thruster tunnel opening and closing device including a motor for rotating the rotating shaft in the forward and reverse directions. The method according to any one of claims 1 to 4, 7 to 10,
The opening and closing member of the thruster tunnel opening and closing device comprising a protective film covering the outer surface. The method according to any one of claims 1 to 4, 7 to 10,
The opening and closing member is a thruster tunnel opening and closing device comprising a plurality of through holes. Ship having a thruster tunnel opening and closing device according to any one of claims 1 to 4, 7 to 10.

Images