Ship propulsion device and ship having the same

一种推进装置、船舶的技术，应用在船舶推进、用同步推进部件的传动装置、推进部件等方向，能够解决难以实现润滑、作业困难、润滑膜剪裂等问题，达到缩小需要润滑的区域、小化诸多问题的效果

Active Publication Date: 2014-05-14
SAMSUNG HEAVY IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, this double counter-rotating propulsion device has a hollow outer shaft that extends long from the counter-rotating device to the rear of the hull. Therefore, it is very difficult to line up the center of the inner shaft and the outer shaft when it is installed on a ship.
Also, since the outer shaft is longer, the area that needs to be lubricated to reduce friction between the inner and outer shafts increases
In addition, since the inner shaft and the outer shaft rotate in opposite directions to each other, the lubricating film formed between the inner shaft and the outer shaft is sheared, so it is difficult to achieve effective lubrication

Method used

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  • Ship propulsion device and ship having the same
  • Ship propulsion device and ship having the same
  • Ship propulsion device and ship having the same

Examples

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Embodiment Construction

[0040] Hereinafter, various embodiments of the present invention will be described in detail with reference to the drawings.

[0041] Such as figure 1 As shown, the propulsion device of the embodiment of the present invention is the following double counter-rotating propulsion device: it is arranged on the rear tail 3 of the hull 1, and the two propellers 20, 30 rotate in opposite directions to generate propulsion. Here, the rear stern 3 of the hull 1 refers to a portion that protrudes rearward from the hull 1 in a streamlined shape to support the drive shaft 10 provided with the two propellers 20 and 30 , that is, a stern boss.

[0042] Such as figure 2 and image 3 As shown, the propulsion device includes: a drive shaft 10 extending outward from the inside of the hull 1 through the rear tail 2 of the hull; a rear propeller 20 fixed to the rear end side of the drive shaft 10; a front propeller 30 rotatably supported on the rear propeller 20 the outer surface of the front ...

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PUM

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Abstract

Disclosed are a ship propulsion device and a ship having the same. According to one embodiment of the present invention, the ship propulsion device includes a rear propeller fixed on a drive shaft; a front propeller supported on a drive shaft of the front of the rear propeller to be rotated; and a reverse rotary device having a plurality of bevel gears which are provided on a rear side of the ship, and transmits rotation of the drive shaft after reversing the rotation to the front propeller.

Description

technical field [0001] The present invention relates to a ship propulsion device and a ship equipped with the device, more specifically, to a ship propulsion device in which two propellers rotate in opposite directions to generate propulsion force, and a ship provided with the same. Background technique [0002] A ship is equipped with a propulsion device that generates propulsion for operation. Typically, one propeller is used in the propulsion unit. However, the propulsion device with one propeller cannot use the rotational energy of the water flow as a propulsion force, so the energy loss is relatively large. [0003] A counter rotating propeller (CRP) is a device capable of recovering this lost rotational energy as propulsion. In double contra-rotating propulsion, two propellers arranged on the same axis rotate in opposite directions to generate propulsion. In the counter-rotating propulsion system, the rear propeller rotates in the opposite direction to the rotation ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63H5/10B63H23/02B63H23/36B63B9/00
CPCB63H23/02B63H2005/106B63H5/10B63H23/36
Inventor 李振奭李泰九白光俊李东炫朴炯吉金正中徐锺守星野徹二皇甫承勉
Owner SAMSUNG HEAVY IND CO LTD
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