The invention discloses a rim propeller or generator, which comprises a stator and a rotor, a rotating shaft in the rotor is movably connected in a shell through a bearing, the stator is fixed on the shell and corresponds to the rotor, the rotating shaft is of a hollow structure, and paddles are fixed on the inner side of the rotating shaft; a sealing assembly is arranged on the side of the bearing; the sealing assembly comprises an outer ring and an inner ring which are respectively fixed on the end cover and the rotating shaft; the outer ring is of an annular structure, and a groove is formed in the inner side. Salient poles are arranged on the inner ring, the salient poles are arranged in the grooves, U-shaped gaps are formed between the salient poles and the grooves, the gaps in the two sides are filled with magnetofluid, and magnetofluid sealing belts are formed in the gaps in the two sides through the magnetofluid under the action of the magnetic poles. Transition fluid with the density not smaller than that of the magnetic fluid is filled in a bottom gap sealed by the magnetic fluid sealing belts on the two sides; and the transition fluid and the magnetic fluid are combined together to form a U-shaped liquid sealing belt. The high-performance propeller and the high-performance generator which are good in sealing performance and low in friction coefficient are provided through magnetofluid sealing.
本发明公开了一种轮缘推进器或发电机,包括有定子及转子,转子中的转轴通过轴承活动连接在壳体中,定子固定在壳体上与转子相对应,转轴呈中空结构,内侧固定有桨叶;轴承侧边设有密封组件;所述密封组件包括有外环和内环,分别固定在端盖及转轴上;外环呈环状结构,内侧设有凹槽;内环上设有凸极,凸极置于凹槽内,与凹槽之间形成U型间隙,两侧的间隙中均填充有磁流体,磁流体由于磁极的作用,在两侧的间隙中各自形成磁流体密封带;在被两侧磁流体密封带所封闭的底部间隙中填充有密度不小于磁流体的过渡流体;过渡流体与磁流体共同组合成一个U型液态密封带。本发明利用磁流体密封提供了一种密封性能好、摩擦系数低的高性能推进器及发电机。
Rim propeller or generator
轮缘推进器或发电机
2021-05-07
Patent
Electronic Resource
Chinese
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