KR101225179B1 - Propulsion apparatus and ship including the same - Google Patents

Abstract

A propulsion device and a vessel comprising the same are disclosed. The propulsion device according to an aspect of the present invention is a propulsion device having a thruster rotatably installed on the hull by the strut, the first motor and the second motor is installed on the hull side, and extends to the thruster through the strut The first driving shaft is made of a hollow to transmit the driving force of the first motor, the second driving shaft is inserted into the hollow of the first driving shaft to transmit the driving force of the second motor, and is installed to extend outward from the thruster, the first The first rotating shaft which transmits the driving force of the first driving shaft to the first propeller by the gear portion, and is installed extending in a direction opposite to the first rotating shaft in the thruster, the second gear portion to drive the driving force of the second driving shaft It includes a second rotating shaft for transmitting to the propeller.

Description

Propulsion device and vessel including the same {PROPULSION APPARATUS AND SHIP INCLUDING THE SAME}

The present invention relates to a propulsion device that can increase the propulsion force and a vessel comprising the same.

In general, a propeller is installed on a ship to obtain propulsion, and a propeller is installed at the stern of the hull, and the propeller rotates by obtaining a driving force from an engine installed inside the hull. A rudder is installed at the rear of the propeller to control the direction of the ship.

Recently, a propulsion device in which a propeller used for driving a ship and a ruder provided for adjusting the ship are integrated so as to be rotatably attached in the vertical direction of the ship has been developed.

These propulsion devices include an Azi Pod Thruster that has a motor inside the pod to directly drive the propeller, and an omnidirectional propeller that receives power from the motor installed in the hull and drives the propeller through the gear mechanism installed in the pod. (Azimuth Thruster).

The aziford type propeller increases exponentially as the cost increases, which increases the initial installation cost. Accordingly, when the driving horsepower is small, an azimuth Thruster is used, which is inexpensive.

For example, counter-rotating Azimuth Thrusters have propellers installed on both sides of the pod of the omnidirectional propeller, and these propellers rotate in opposite directions to increase propulsion.

1 is a view schematically showing a propulsion device according to the prior art.

Referring to FIG. 1, in the conventional propulsion apparatus 10, a strut 12 is rotatably installed at a lower portion of the hull 2, and a thruster 20 is provided at the strut 12.

In addition, a motor 14 for transmitting a driving force is provided on the side of the hull 2, and the drive shaft 15 of the motor 14 extends to the thruster 20 through the strut 12. The drive shaft 15 is provided with a drive gear 15a.

In addition, inside the thruster 20, first rotation shafts 22 extending to the bow side and second rotation shafts 24 extending to the stern side are respectively installed.

The first rotary shaft 22 is provided with a first rotary gear 22a meshed with the drive gear 15a of the drive shaft 15. In addition, the second rotary shaft 24 is provided with a second rotary gear 24a meshed with the drive gear 15a of the drive shaft 15. At this time, the first rotary shaft 22 and the second rotary shaft 24 are installed to rotate in opposite directions to each other.

In addition, a first propeller 26 and a second propeller 28 are installed on the first rotary shaft 22 and the second rotary shaft 24.

However, in the conventional propulsion device 10, the drive gear 15a, the first rotary gear 22a and the second rotary gear 24a are made of bevel gears, and such bevel gears have a small connection area for power transmission. There is a structural problem that cannot deliver large horsepower. As such, the conventional propulsion device 10 has a structural limitation in increasing propulsion force, and thus, technology development for increasing propulsion force is required.

The present embodiment is to provide a propulsion apparatus and a ship including the same so that the driving force is transmitted from a plurality of motors to increase the driving force.

The propulsion device according to an aspect of the present invention is a propulsion device having a thruster rotatably installed on the hull by the strut, the first motor and the second motor is installed on the hull side, and extends to the thruster through the strut The first driving shaft is made of a hollow to transmit the driving force of the first motor, the second driving shaft is inserted into the hollow of the first driving shaft to transmit the driving force of the second motor, and is installed to extend outward from the thruster, the first The first rotating shaft which transmits the driving force of the first driving shaft to the first propeller by the gear portion, and is installed extending in a direction opposite to the first rotating shaft in the thruster, the second gear portion to drive the driving force of the second driving shaft It includes a second rotating shaft for transmitting to the propeller.

The first motor and the second motor may be arranged in parallel, the rotation shaft of the first motor and the first driving shaft may be connected by the rotary gear part, and the second driving shaft may be the rotation shaft of the second motor.

The second motor may be disposed in series on an upper portion of the first motor, the first driving shaft may be a rotation shaft of the first motor, and the second driving shaft may be a rotation shaft of the second motor installed through the first motor and the first driving shaft.

The first motor may be installed outside the second motor, the first driving shaft may be a rotation shaft of the first motor, and the second driving shaft may be a rotation shaft of the second motor installed through the first driving shaft.

The first driving shaft and the second driving shaft may rotate in the same direction, and the first gear portion and the second gear portion may be connected to rotate the first rotation shaft and the second rotation shaft in a reverse direction.

The ship according to another aspect of the present invention includes a hull and the aforementioned propulsion device installed on the hull.

The first driving shaft and the second driving shaft may rotate in the same direction, and the first gear portion and the second gear portion may be connected to rotate the first rotation shaft and the second rotation shaft in a reverse direction.

Therefore, it is possible to increase the driving force by using a plurality of motors, thereby providing a high output propulsion device. As such, since a propulsion device using a general motor can be manufactured at a high output, it is possible to replace the azipod type propeller of a direct drive method having a high manufacturing cost at a low cost. In addition, the first driving shaft and the second driving shaft inserted into the hollow of the first driving shaft is rotated in the same direction to each other to smooth the internal lubrication, thereby improving durability and output.

1 schematically shows a propulsion device according to the prior art;
2 is a view schematically showing a propulsion device according to an embodiment of the present invention.
3 is a view schematically showing a propulsion device according to another embodiment of the present invention.
4 is a view schematically showing a propulsion device according to another embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated in the drawings and described in detail in the detailed description.

Hereinafter, embodiments of a propulsion device and a ship including the same according to the present invention will be described in detail with reference to the accompanying drawings. In the following description with reference to the accompanying drawings, the same or corresponding components are given the same reference numerals. Duplicate description thereof will be omitted.

2 is a view schematically showing a propulsion device according to an embodiment of the present invention.

Referring to FIG. 2, the propulsion device 110 according to the present embodiment is provided with a strut 112 rotatably installed at a lower portion of the hull 102, and a thruster is disposed below the strut 112. 120 is installed.

The thruster 120 is rotatably installed with a propeller for generating a propulsion force, and the propulsion force generated by the propeller may be used to propel the ship or rotate the strut 112 to control the traveling direction.

The hull 102 may be provided with a separate rotary motor for rotating the struts 112. The rotary motor can pivot the struts 112 forward and backward with respect to the hull 102, by using this to dynamically control the hull to stay in a certain position, or to control the propulsion direction.

In this embodiment, the thruster 120 may be installed to receive a driving force by the plurality of motors 114 and 116 to increase the output.

For example, the first motor 114 and the second motor 116 may be installed inside the hull 102.

In this embodiment, the first motor 114 and the second motor 116 may be arranged in parallel.

The rotation shaft of the first motor 114 may be connected to the first driving shaft 115 installed through the strut 112. To this end, a rotary gear unit for transmitting a driving force may be installed between the rotary shaft 114a and the first driving shaft 115 of the first motor 114.

The rotary gear part includes a main rotary gear 114b installed on the rotary shaft 114a of the first motor 114 and a driven rotary gear 115a provided on the first drive shaft 115, and includes a main rotary gear 114b and a driven rotation. The gears 115a may be engaged with each other to transmit the driving force of the first motor 114 to the first driving shaft 115.

The first drive shaft 115 is hollow inside, and extends through the strut 112 to the thruster 120.

In addition, the second driving shaft 117 that is the rotation shaft of the second motor 116 is inserted into the hollow of the first driving shaft 115 to transmit the driving force. The second driving shaft 117 may extend through the hollow of the first driving shaft 115 to the thruster 120. A lubricant may be filled between the first driving shaft 115 and the second driving shaft 117 to reduce friction generated during rotation.

Meanwhile, the thruster 120 may be provided with a first rotating shaft 122 and a second rotating shaft 124 connected to the first driving shaft 115 and the second driving shaft 117.

In the present embodiment, the first rotation shaft 122 may be installed to extend to the bow side, for example, and a first propeller 126 for generating propulsion force may be installed at an end thereof.

In addition, the second rotary shaft 124 is installed to extend in the direction opposite to the direction in which the first rotary shaft 122 extends, for example, may extend to the stern side. In addition, a second propeller 128 for generating a propulsion force may be installed at an end of the second rotation shaft 124.

Meanwhile, the driving force of the first motor 114 and the second motor 116 is transmitted between the first driving shaft 115 and the first rotating shaft 122 and between the second driving shaft 117 and the second rotating shaft 124, respectively. A first gear portion and a second gear portion may be provided.

The first gear part includes a first main gear 115b provided at an end of the first driving shaft 115 and a first driven gear 122a provided at the first rotation shaft 122. The first gear portion transmits the driving force transmitted from the first driving shaft 115 to the first driven gear 122a engaged with the first driving gear 115b to rotate the first rotation shaft 122.

In addition, the second gear part includes a second main gear 117a provided at the end of the second driving shaft 117 and a second driven gear 124a provided at the second rotation shaft 124. The second gear unit transmits the driving force transmitted from the second driving shaft 117 to the second driven gear 124a meshed with the second driving gear 117a to rotate the second rotation shaft 124.

In the present embodiment, the first motor 114 and the second motor 116 may rotate the first drive shaft 115 and the second drive shaft 117 in the same direction.

In addition, the first gear part and the second gear part may be connected so that the first rotation shaft 122 and the second rotation shaft 124 connected to the first driving shaft 115 and the second driving shaft 117 rotate in opposite directions.

To this end, the first driven gear 122a of the first gear part may be disposed on the left side of the first main gear 115b so that the upper part of the gear meshes with the first main gear 115b.

In addition, the second driven gear 124a of the second gear part may be disposed on the right side of the second main gear 117a so that the upper side of the gear meshes with the second main gear 117a.

In this embodiment, the first propeller 126 and the second propeller 128 installed at the ends of the first rotation shaft 122 and the second rotation shaft 124 rotate in opposite directions, that is, counter rotating. The driving efficiency can be increased, and the steering efficiency can be improved by reducing the eddy current caused by the wake.

Looking at the operation of the embodiment configured as described above are as follows.

First, the first motor 114 and the second motor 116 are rotated to obtain a driving force.

For example, in the present embodiment, the first motor 114 may rotate in a clockwise direction, and the second motor 116 may rotate in a counterclockwise direction.

In this embodiment, the clockwise or counterclockwise direction will be described based on the direction of rotation based on the direction viewed from the top of the ship or the direction viewed from the bow side.

In addition, the main rotary gear 114b installed on the rotary shaft 114a of the first motor 114 meshes with the driven rotary gear 115a of the first driving shaft 115 and counterclockwise the first driving shaft 115. Rotate

In addition, the second motor 116 rotates in the counterclockwise direction, and thus both the first drive shaft 115 and the second drive shaft 117 rotate in the counterclockwise direction. In this case, the first driving shaft 115 and the second driving shaft 117 may rotate at the same speed, thereby maintaining the lubricant between the first driving shaft 115 and the second driving shaft 117 to a constant thickness. .

When the first driving shaft 115 and the second driving shaft 117 rotate counterclockwise, the first driven gear 122a engaged with the first main gear 115b rotates clockwise.

In addition, the first propeller 126 may be rotated clockwise as the first rotating shaft 122 rotates clockwise by the first driven gear 122a.

In addition, the second driven gear 124a meshed with the second main gear 117a rotates counterclockwise. When the second driven gear 124a rotates counterclockwise, the second rotation shaft 124 rotates counterclockwise to rotate the second propeller 128 counterclockwise.

In this embodiment, the propulsion device 110 is described with reference to an embodiment in which the first motor 114 and the second motor 116 are arranged in parallel, but is not limited thereto. For example, the first motor 114 and the second motor 116 may be disposed in series.

Referring to FIG. 3, which schematically illustrates a propulsion device according to another embodiment of the present invention, the first motor 214 and the second motor 216 may be installed at the hull 102 side.

The first motor 214 may be formed of a first driving shaft 215 which is a rotating shaft, and may be extended to the thruster 120 through the strut 112. The second motor 216 may be installed in series on the first motor 214.

The second driving shaft 217, which is the rotation shaft of the second motor 216, may be inserted into the hollow first driving shaft 115 and extended to the thruster 120.

As such, the propulsion device 210 may be configured in a structure in which the first motor 214 and the second motor 216 are arranged in series, and each of the first driving shaft 115 and the second driving shaft 117 is individually provided. The driving force may be transmitted to the thruster 120.

In addition, the first driving shaft 215 and the second driving shaft 217 may rotate the first rotating shaft 122 and the second rotating shaft 124 by the first gear portion and the second gear portion, respectively.

As such, when the first rotation shaft 122 and the second rotation shaft 124 rotate in the reverse direction, counter-rotating is performed in which the first propeller 126 and the second propeller 128 rotate in opposite directions. It is possible to increase the propulsion efficiency, to reduce the vortex caused by the wake can improve the steering efficiency.

4 is a view schematically showing a propulsion device according to another embodiment of the present invention.

Referring to FIG. 4, the first motor 314 and the second motor 316 may be installed at the hull 102 side. Here, the first motor 314 may be installed outside the second motor 316. The first driving shaft 315, which is a rotation shaft of the first motor 314, may be hollow, and may be installed to extend to the thruster 120 through the strut 112.

In addition, in the second motor 316 installed inside the first motor 314, a second driving shaft 317, which is a rotation shaft, may extend through the first driving shaft 315 to the thruster 120.

As such, the propulsion device 110 may have a structure disposed outside the first motor 314 and the second motor 316, and each of the first driving shaft 315 and the second driving shaft 317 may be separately provided. The driving force may be transmitted to the thruster 120.

In addition, the first driving shaft 315 and the second driving shaft 317 may rotate the first rotating shaft 122 and the second rotating shaft 124 by the first gear portion and the second gear portion, respectively.

As such, when the first rotation shaft 122 and the second rotation shaft 124 rotate in the reverse direction, counter-rotating is performed in which the first propeller 126 and the second propeller 128 rotate in opposite directions. It is possible to increase the propulsion efficiency, to reduce the vortex caused by the wake can improve the steering efficiency.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. It will be understood that the invention may be varied and varied without departing from the scope of the invention.

102: hull 110: propulsion device
112: strut 114: first motor
114a: rotation axis 115: first drive shaft
115a: driven rotary gear 115b: first main gear
116: second motor 117: second drive shaft
117a: second main gear 120: thruster
122: first rotating shaft 122a: first driven gear
124: second rotating shaft 124a: second driven gear
126: first propeller 128: second propeller

Claims (7)

In the propulsion device having a thruster rotatably installed on the hull by a strut,
A first motor and a second motor installed at the hull side;
A first drive shaft extending through the strut to the thruster and being hollow to transmit a driving force of the first motor,
A second driving shaft inserted into the hollow of the first driving shaft and transmitting a driving force of the second motor;
A first rotating shaft installed outwardly from the thruster and transmitting a driving force of the first driving shaft to a first propeller by a first gear part;
The thruster extends in a direction opposite to the first rotation shaft, and includes a second rotation shaft which transmits the driving force of the second driving shaft to the second propeller by a second gear part.
The first motor and the second motor is arranged in parallel,
The rotating shaft of the first motor and the first driving shaft is connected by the rotary gear unit,
The second driving shaft is a propulsion device, characterized in that the rotating shaft of the second motor.
delete In the propulsion device having a thruster rotatably installed on the hull by a strut,
A first motor and a second motor installed at the hull side;
A first drive shaft extending through the strut to the thruster and being hollow to transmit a driving force of the first motor,
A second driving shaft inserted into the hollow of the first driving shaft and transmitting a driving force of the second motor;
A first rotating shaft installed outwardly from the thruster and transmitting a driving force of the first driving shaft to a first propeller by a first gear part;
The thruster extends in a direction opposite to the first rotation shaft, and includes a second rotation shaft which transmits the driving force of the second driving shaft to the second propeller by a second gear part.
The second motor is disposed in series on the upper portion of the first motor,
The first driving shaft is a rotation shaft of the first motor,
The second driving shaft is a propulsion device, characterized in that the rotating shaft of the second motor installed through the first motor and the first driving shaft.
In the propulsion device having a thruster rotatably installed on the hull by a strut,
A first motor and a second motor installed at the hull side;
A first drive shaft extending through the strut to the thruster and being hollow to transmit a driving force of the first motor,
A second driving shaft inserted into the hollow of the first driving shaft and transmitting a driving force of the second motor;
A first rotating shaft installed outwardly from the thruster and transmitting a driving force of the first driving shaft to a first propeller by a first gear part;
The thruster extends in a direction opposite to the first rotation shaft, and includes a second rotation shaft which transmits the driving force of the second driving shaft to the second propeller by a second gear part.
The first motor is installed on the outside of the second motor,
The first driving shaft is a rotation shaft of the first motor,
The second driving shaft is a propulsion device, characterized in that the rotating shaft of the second motor installed through the first driving shaft.
In the propulsion device having a thruster rotatably installed on the hull by a strut,
A first motor and a second motor installed at the hull side;
A first drive shaft extending through the strut to the thruster and being hollow to transmit a driving force of the first motor,
A second driving shaft inserted into the hollow of the first driving shaft and transmitting a driving force of the second motor;
A first rotating shaft installed outwardly from the thruster and transmitting a driving force of the first driving shaft to a first propeller by a first gear part;
The thruster extends in a direction opposite to the first rotation shaft, and includes a second rotation shaft which transmits the driving force of the second driving shaft to the second propeller by a second gear part.
The first drive shaft and the second drive shaft is rotated in the same direction,
And the first gear portion and the second gear portion are connected to rotate the first rotation shaft and the second rotation shaft in a reverse direction.
Hull,
Ship comprising a propulsion device according to any one of claims 1, 3 and 4 installed in the hull.
The method of claim 6,
The first drive shaft and the second drive shaft is rotated in the same direction,
And the first gear portion and the second gear portion are connected to rotate the first rotation shaft and the second rotation shaft in a reverse direction.

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