The invention relates to an underwater propeller, in particular to a small underwater shaftless propeller which comprises a shell, a motor assembly, an upper cover and a lower cover, a water inlet and a water outlet are formed in the middle of the lower cover and the middle of the upper cover respectively, the motor assembly comprises a stator and a rotor, propeller blades are arranged in the rotor, the stator is annular and is arranged in a sealing sleeve, and the sealing sleeve is arranged in the shell. One end of the sealing sleeve is opened, and the opening is covered and sealed by the upper cover to form a sealed cavity; water permeable holes are formed in the lower cover close to the water inlet and the upper cover close to the water outlet, the water inlet and the water outlet are each provided with a structural part, a sliding bearing assembly is arranged between the structural parts and the rotor, a gap I is formed in the sliding bearing assembly, and the gap I and the water permeable holes are communicated to form a water lubrication passage; a gap II is formed between the outer peripheral wall of the rotor and the inner ring wall of the sealing sleeve; and the gap II is communicated with the water permeable hole to form a water cooling passage. The device has the characteristics of high reliability, long service life and low maintenance cost, and is suitable for being applied to an underwater environment.

    本发明涉及一种水下推进器,尤其是一种小型水下无轴推进器,其包括外壳、电机组件、上盖和下盖,下盖和上盖的中部分别设有进水口和出水口,电机组件包括定子和转子,转子内部设有螺旋桨叶,定子呈环形且设置于一密封套内,密封套的一端开口且该开口由上盖覆盖并密封,以形成一密封腔体;靠近进水口的下盖和靠近出水口处的上盖上均设有透水孔,进水口和出水口上各设置有一结构件,结构件与转子之间设有滑动轴承组件,滑动轴承组件内部具有间隙I,该间隙I与透水孔联通形成水润滑通路;转子的外周壁与密封套的内环壁之间具有间隙II,该间隙II与透水孔联通形成水冷却通路。本发明具有高可靠性、长寿命和低维护成本的特点,适合水下环境的应用。


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    Titel :

    Small underwater shaftless propeller


    Weitere Titelangaben:

    小型水下无轴推进器


    Beteiligte:
    SUN XIANNIAN (Autor:in) / BEN ZHIHUA (Autor:in) / MAO LIJUN (Autor:in) / TANG CHENCHEN (Autor:in)

    Erscheinungsdatum :

    25.04.2025


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING



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