The invention discloses a high-power sealing rim propeller comprising a rotating shaft, a shell, a stator and a rotor, and the rotating shaft is of a hollow and horn-shaped structure, is movably connected into the shell through a bearing; the propeller comprises a large end part, a small end part and a gradual change part; a propeller is fixed at the large end part, and the rotor is fixed at the small end part; the stator is fixed on the shell and corresponds to the rotor; a sealing assembly is arranged on the side edge of the bearing and comprises a concave pole and a convex pole, and one of the concave pole and the convex pole is fixed to a rotating shaft. The outer side of the concave pole is provided with a permanent magnet, and the inner side is provided with a U-shaped groove. The top of the salient pole is arranged in the groove, and a U-shaped gap is formed between the salient pole and the groove; magnetic fluid is filled in the gap; the magnetic fluid is accumulated at the bottom of the groove under the action of a magnetic field provided by the magnetic pole on the inner side of the permanent magnet, and a U-shaped sealing belt is formed between the salient pole and the concave pole according to the principle that fluid is in static pressure balance in the U-shaped pipe. The high-power sealed rim propeller is low in friction coefficient and high in propelling efficiency.

    本发明公开了一种大功率密封轮缘推进器,包括有转轴、壳体、定子及转子,转轴呈中空、喇叭状结构,通过轴承活动连接在壳体中,包括有大端部、小端部及渐变部;所述大端部固定有螺旋桨,所述小端部固定有转子;所述定子固定在壳体上,与转子相对应;轴承侧边设有密封组件,密封组件包括有凹极和凸极,其中之一固定在旋转的转轴上;所述凹极外侧设有永磁体,内侧设有U型凹槽;凸极顶部置于凹槽内,并与凹槽之间形成U型间隙;间隙内填充磁流体;磁流体在永磁体内侧磁极提供的磁场作用下积聚在凹槽底部,并利用流体在U型管中静压平衡的原理,在凸极与凹极之间形成U型的密封带。本发明提供了一种摩擦系数低、推进效率密高的大功率密封轮缘推进器。


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    Title :

    High-power sealing rim propeller


    Additional title:

    一种大功率密封轮缘推进器


    Contributors:

    Publication date :

    2021-05-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING / H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES



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