The ship propeller device comprises the main propeller (1), the auxiliary propeller (2), a main propeller hub (3), an auxiliary propeller hub (4), a main propeller shaft (5) and an auxiliary propeller shaft (6), the auxiliary propeller (2) is located behind the main propeller (1), the diameter of the auxiliary propeller (2) is smaller than that of the main propeller (1), and the rotation direction of the auxiliary propeller (2) is opposite to that of the main propeller (1); and the central axes of the main propeller (1) and the auxiliary propeller (2) coincide with each other. Compared with a traditional ship propeller, the propeller has the advantages that the propelling efficiency of the ship propeller can be effectively improved, generation of hub vortex cavitation bubbles can be inhibited, negative influences of the hub vortex cavitation bubbles on noise, cavitation and the like of the ship propeller can be reduced, and influences of the hub vortex cavitation bubbles on cavitation of a ship rudder and the like can be reduced.
本发明涉及一种具有辅螺旋桨的船舶螺旋桨装置,包括主螺旋桨(1)、辅螺旋桨(2)、主桨毂(3)、辅桨毂(4)、主桨轴(5)和辅桨轴(6),所述的辅螺旋桨(2)位于主螺旋桨(1)的后方,辅螺旋桨(2)的直径比主螺旋桨(1)的直径小,且旋转方向相反,主螺旋桨(1)和辅螺旋桨(2)的中心轴相互重合。与传统的船舶螺旋桨相比,本发明能够有效地提高船舶螺旋桨的推进效率,抑制毂涡空泡的产生,减少毂涡空泡对船舶螺旋桨噪声及汽蚀等造成的负面影响,以及减少毂涡空泡对船舶舵汽蚀等影响。
Ship propeller device with auxiliary propellers
一种具有辅螺旋桨的船舶螺旋桨装置
2022-07-15
Patent
Electronic Resource
Chinese
IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING |
SPECIAL FEATURES - Propellers and thrusters - CLT propeller for naval replenishment ship
Online Contents | 2006
Engineering Index Backfile | 1930
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