KR20100028940A

KR20100028940A - Thruster of ship

Info

Publication number: KR20100028940A
Application number: KR1020080087907A
Authority: KR
Inventors: 박광용; 정현채
Original assignee: 삼성중공업 주식회사
Priority date: 2008-09-05
Filing date: 2008-09-05
Publication date: 2010-03-15

Abstract

PURPOSE: A ship propulsion device is provided to prevent slamming force from being directly applied on a thruster by dispersing slamming force to a hull. CONSTITUTION: A ship propulsion device comprises a receiving part(70), a thruster(10), a cover(30), and a shock absorbing part(60). The receiving part is formed on the stern of the ship and has an opening. The thruster is installed. The cover is installed on the thruster to correspond to the thruster. The shock absorbing part is formed on the opening of the receiving part.

Description

Thruster of ship

The present invention relates to a ship propulsion device and more particularly to a ship propulsion device that can be accommodated inside the ship.

Conventional vessels are provided with a thruster (Thruster) at the stern of the vessel for propelling the vessel. The thruster attached to the stern is projected from the shape of the ship designed to be less water resistant and is subject to water resistance.

In order to solve this problem, as shown in FIG. 1, when the ship does not need the thrust force of the thruster, the thruster 1 is accommodated in the bottom of the ship 5 to accommodate the inside of the ship 5 to reduce the resistance. A structure has been developed in which an opening 2 is formed and the thruster 1 can be accommodated into the vessel 5 through the opening 2.

However, this structure is to form an opening (2) in the vessel (5) to enter the water in the vessel (5) is to be more resistance, so that after closing the opening (2) after receiving the thruster (1) Since it does not enter through this opening part 2, resistance can be reduced.

In particular, as shown in FIG. 2, when the cover 3 having a size corresponding to the opening 2 is mounted on the lower portion of the thruster 1 to accommodate the thruster 1, the opening 2 is covered by the cover 3. By using the structure to be closed by, there is an advantage that it is not necessary to provide a separate opening and closing device of the opening. However, since the slamming force due to the pressure of the water applied to the wall of the hull or the flow of water is also applied to the cover connected to the thruster, the force is transmitted to the thruster, causing the thruster to be damaged or a failure occurs. .

The present invention has been made to solve the above problems, an object of the present invention is to prevent the transmission of the slamming force (slamming force) due to the vessel motion applied to the thruster to the thruster.

In order to achieve the above object, according to the present invention, an accommodating part formed at the stern of the ship and including an opening, a thruster installed to be accessible to the outside through the opening, and a thruster corresponding to the opening in a state where the thruster is accommodated in the accommodating part And a shock absorbing portion formed in an opening of the receiving portion to absorb an external impact applied to the cover while the thruster is accommodated in the receiving portion.

The shock absorbing portion may be in contact with the cover in a state where the thruster is accommodated in the accommodating portion, may be formed in the accommodating portion along the inner circumference of the opening of the accommodating portion, and an elastic member may be used as a material of the shock absorbing portion.

According to the present invention, the slamming force due to the ship motion applied to the thruster is distributed to the hull to prevent the slamming force from being directly applied to the thruster, thereby preventing breakage and failure of the thruster.

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

3 is a front view showing a ship propulsion device according to an embodiment of the present invention, Figure 4 is a side sectional view showing a ship propulsion device according to an embodiment of the present invention. Referring to FIGS. 3 and 4, a thruster 10, a cover 30 formed below the thruster 10, an accommodating part 70 accommodating the thruster 10, and an opening of the accommodating part 70. There is shown a ship propulsion device consisting of a shock absorbing device 60 formed in the shaft, the shaft 40 and the hull 50 for moving the thruster up and down.

The thruster 10 is a device that provides a driving force that is the core of the ship propulsion device, and is located at the stern of the hull 50 to have a propeller blade and a motor for rotating it. The propeller consists of a streamlined plate and generally has two or more plates arranged in a helical shape to apply a propulsive force to the hull 50 with the force of reaction by pushing the fluid under rotational force by a motor. In addition to the shapes shown in FIGS. 3 and 4, the propeller shape of the thruster 10 and the connection structure of the propeller and the motor are variously possible.

It is possible to form an accommodating portion 70 having an opening formed at the stern of the ship so that the thruster 10 is accommodated inside the hull, and the size of the opening is such that the thruster 10 should be accessible through the opening. ) Is enough to pass through. The accommodating part 70 may be treated to be waterproof to prevent water from leaking into the room where the room or equipment is located by passing the water.

The thruster 10 may be connected by the hull 50 and the shaft 40. The shaft 40 may be extended and contracted in the longitudinal direction, and the thruster 10 may enter the hull or protrude out of the hull 50 by the expansion and contraction of the shaft 40. According to the expansion and contraction of the shaft 40, the thruster 10 may be accommodated inside the ship, and may protrude out of the ship when propulsion force is required. In addition, the rotation direction of the hull can be adjusted by rotating the thruster 10 around the shaft 40.

In this way, the thruster 10 provides a driving force and at the same time the direction that can be adjusted by the shaft 40 is called azimuth thruster (Azimuth Thruster), by combining the function of the key to the thruster (10) It is more efficient than adjusting the branch device.

The cover 30 is coupled to the lower portion of the thruster 10 and serves to close the opening 70 when the thruster 10 is received into the hull. The size can be manufactured to a size capable of shielding the opening of the receiving portion 70, and a cut of the outer wall of the hull to form the opening 70 can be used as the cover 30.

Since the cover 30 becomes part of the outer wall of the hull 50, a slamming force applied by the flow of water according to the movement of the ship is applied to the thruster 10 through the connecting portion 20. Slamming force refers to the pressure repeatedly applied by the flow of water, such as waves, that is, the 'wave impact under the bow'.

Since the impact is directly applied to the thruster 10, the thruster 10 may be damaged, so it is necessary to disperse the slamming force applied to the cover 30.

In this embodiment, by adding a shock absorbing portion 60 that can be in contact with the cover 30 along the periphery of the opening of the receiving portion, the impact applied to the cover 30 through the shock absorbing portion 60 hull 50 Distribute to the wall. 3 shows the flow of force with an arrow, and the force applied to the cover 30 is transmitted to the hull 50 through the shock absorbing unit 60, thereby reducing the impact applied to the thruster 10, thereby reducing the thrust. It is possible to prevent breakage and failure of the stud 10.

The shock absorbing portion 60 can be formed inside the hull along the perimeter of the opening of the receiving portion 70, as shown in FIGS. 3 and 4, and need not necessarily be continuous. The shock absorbing part 60 may be formed to protrude in an open direction than the opening circumference of the accommodating part 70 so that the thruster 10 is accommodated so that the cover 30 is coupled with the cover 30 when the cover 30 shields the opening. Can be.

The shock absorber 60 is not limited as long as it is a material capable of transmitting a force, and in particular, the shock absorber 60 may effectively reduce the force transmitted to the thruster 10 because the shock absorber 60 absorbs and relieves shock.

Although the ship propulsion device according to an embodiment of the present invention has been described above, the spirit of the present invention is not limited to the embodiments presented herein, and those skilled in the art to understand the spirit of the present invention are within the scope of the same idea. Other embodiments may be easily proposed by adding, changing, deleting, or adding components, but this will also fall within the spirit of the present invention.

1 is a side cross-sectional view showing a structure of a conventional ship propulsion device.

Figure 2 is a side cross-sectional view showing a structure of a conventional ship propulsion device.

3 is a front view showing a ship propulsion device according to an embodiment of the present invention

Figure 4 is a side cross-sectional view showing a ship propulsion device according to an embodiment of the present invention.

Explanation of symbols on main parts of drawing

10: thruster (Thruster)

20: connection

30: cover

40: shaft

50: hull

60: shock absorber

70: receiver

Claims

A receiving portion formed at the stern of the ship and including an opening;

A thruster installed to be accessible to the outside through the opening;

A cover installed on the thruster so as to correspond to the opening in the state where the thruster is accommodated in the accommodation portion; And

And a shock absorbing portion formed in an opening of the receiving portion to absorb an external impact applied to the cover while the thruster is received in the receiving portion.

The method of claim 1,

The shock absorbing portion

Ship thruster characterized in that the thruster is in contact with the cover in a state accommodated in the receiving portion.

The method of claim 1,

The shock absorbing portion

Ship propulsion device characterized in that formed in the interior of the accommodating portion along the inner circumference of the opening of the accommodating portion.

The method of claim 1,

The shock absorbing portion

Ship propulsion device characterized in that the elastic member.