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Rudder-propeller matching system

A rudder propeller and propeller dome technology, applied in the field of rudder propeller matching system, can solve the problems of poor ship maneuverability, affecting propeller propulsion efficiency, cavitation corrosion, etc., to increase the cargo capacity, save the weight of the rudder system, and avoid cavitation. the effect of

Inactive Publication Date: 2020-10-09
HUDONG ZHONGHUA SHIPBUILDINGGROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention provides a rudder-propeller matching system, which overcomes the poor maneuverability of the ship caused by the combination of the above-mentioned semi-suspended rudder and the conventional propeller, which is prone to cavitation corrosion and affects the propulsion efficiency of the propeller. Reduce the weight of the rudder system, improve the maneuverability of the ship, avoid cavitation corrosion, and effectively improve the propulsion efficiency of the ship

Method used

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  • Rudder-propeller matching system

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Embodiment 1

[0032] Embodiment 1, the present invention provides a rudder-propeller matching system, including a rudder 1 , a rudder ball 2 , a propeller 6 and a reduction gear box 9 .

[0033] The rudder 1 is a fully suspended rudder, which is arranged below the dummy rudder 4, and the rudder 1 is connected with the steering gear 5 through the rudder stock 3. Setting the rudder 1 as a fully suspended rudder can save the rudder arm, thereby increasing the movable part of the rudder. Under the condition of satisfying the same maneuverability of the ship, the rudder area can be reduced, so about 30% of the rudder can be saved. Tie weight, thereby reducing the weight of the empty ship and increasing the cargo capacity of the ship.

[0034] The leading edge of the rudder 1 is set in a twisted line shape. Preferably, along the height direction of the rudder 1, the leading edge of the rudder 1 gradually shifts from the left side of the center line of the rudder body to the right side of the cen...

Embodiment 2

[0039] Embodiment 2, the present invention provides a rudder-propeller matching system, including a rudder 1 , a rudder ball 2 , a propeller 6 and a reduction gear box 9 .

[0040] The rudder 1 is a fully suspended rudder, which is arranged below the dummy rudder 4, and the rudder 1 is connected with the steering gear 5 through the rudder stock 3. Setting the rudder 1 as a fully suspended rudder can save the rudder arm, thereby increasing the movable part of the rudder. Under the condition of satisfying the same maneuverability of the ship, the rudder area can be reduced, so about 30% of the rudder can be saved. Tie weight, thereby reducing the weight of the empty ship and increasing the cargo capacity of the ship.

[0041] The leading edge of the rudder 1 is set in a twisted line shape. Preferably, along the height direction of the rudder 1, the leading edge of the rudder 1 gradually shifts from the left side of the center line of the rudder body to the right side of the cen...

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Abstract

The invention discloses a rudder-propeller matching system, which comprises a rudder arranged below a fake rudder, a rudder ball fixed on the front end face of the rudder, a propeller located on the same horizontal line with the rudder ball, and a reduction gear box connected with the propeller through a tail shaft, wherein a propeller cap is installed at the tail end of the propeller, a gap is formed between the propeller cap and the rudder ball, and the shape of the surface, which faces the rudder ball, of the propeller cap is matched with the line type of the rudder ball. Cavitation bubblesare avoided, instant impact and corrosion caused by cavitation bubble breaking are avoided, and the service life of the rudder and the service life of the propeller are prolonged.

Description

technical field [0001] The invention relates to the technical field of shipbuilding, in particular to a rudder-propeller matching system. Background technique [0002] The rudder is a device that ensures the maneuverability of the ship, such as direct sailing, steering, turning, and reverse sailing, and the propeller is the propulsion device that ensures the ship's navigation. [0003] The combination of semi-suspended rudder and conventional propeller is the standard configuration of the ship's steering and propulsion system. The semi-suspended rudder needs to be equipped with a rudder arm. Since the rudder arm is an immovable part, it has limited practical effect on the maneuverability of the ship. Moreover, the high-speed rotating propeller throws a large amount of water to the stern. In addition, as the propeller moves with the ship, the changing space makes it too late to replenish the surrounding liquid, so a partial vacuum area is formed on the back of the propeller ...

Claims

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Application Information

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IPC IPC(8): B63B73/00B63H1/28B63H5/07B63B1/38B63H25/38
CPCB63B1/38B63H1/28B63H5/07B63H25/38B63B73/00Y02T70/10
Inventor 王忠强姜志强赵志华吴安宋锋李永福喻义华童南汨
Owner HUDONG ZHONGHUA SHIPBUILDINGGROUP