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Wake-adaptive efficient shaft support structure

A shaft support and high-efficiency technology, which is applied in the direction of transmission devices with synchronous propulsion components, water-acting propulsion elements, etc., can solve problems such as inability to achieve energy saving, and achieve the effects of improving propulsion efficiency, improving resistance, and reducing adverse effects.

Pending Publication Date: 2021-08-24
SHANGHAI MERCHANT SHIP DESIGN & RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] For the existing shaft support, the effect of energy saving cannot be achieved without adding any auxiliary devices

Method used

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  • Wake-adaptive efficient shaft support structure
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Embodiment Construction

[0022] A preferred embodiment will be given below, and the present invention will be described more clearly and completely in conjunction with the accompanying drawings.

[0023] Such as figure 1 and figure 2 As shown, a wake-adapted high-efficiency shaft support structure includes two support arms 10 for supporting the ship's propulsion shaft system. The ship propulsion shafting system includes a shaft covering 20 and a rotating shaft 22 fixedly connected with a propeller 21 , and the shaft covering 20 is sheathed on the rotating shaft 22 . Two ends of the bracket arm 10 are fixedly connected to the axle sleeve 20 and the hull 30 respectively.

[0024] The connecting line between the front end and the rear end of the support arm 10 is the symmetrical center line of the support arm, and the side surfaces of the support arm on both sides of the symmetrical center line are streamlined. The front end and the rear end of the support arm are respectively towards the bow and the...

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Abstract

The invention discloses a wake-adaptive efficient shaft support structure which comprises two support arms used for supporting a ship propulsion shafting, the ship propulsion shafting comprises a shaft sheath, and the two ends of each support arm are fixedly connected to the shaft sheath and a ship body respectively; and the two support arms are arranged on the two sides of the maximum wake flow position of a ship tail flow field respectively. According to the invention, the effects of energy conservation and emission reduction can be achieved under the condition of not increasing equipment.

Description

technical field [0001] The invention relates to the technical field of ships, in particular to a wake-adapted and high-efficiency shaft support structure. Background technique [0002] Vessels with twin or multiple propellers often have a section of shafting that extends beyond the main hull and requires additional support. In the prior art, shaft brackets are usually used to connect the propulsion shafting to the hull to play a supporting role. However, the existing shaft support will lead to poor wake flow of the ship, and also have an adverse effect on the propulsion efficiency of the propeller. [0003] Energy saving and emission reduction is the general trend today, and many ships have added energy-saving devices. [0004] An existing energy-saving device is a pre-rotation guide vane, which is installed in front of the propeller to make the water flow rotate in the opposite direction of the propeller. The profile of the pre-rotation guide vane is similar to the shaft...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63H23/34
CPCB63H23/34
Inventor 高斌周妍肖留勇陈晓晨
Owner SHANGHAI MERCHANT SHIP DESIGN & RES INST
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