The invention belongs to the field of underwater low-speed propellers, and particularly relates to a motor direct-drive type bearingless underwater propeller convenient to disassemble. Comprising an end cover, a motor, a cylindrical shell, a hub connecting shaft, a housing supporting column, a conical shell, a flow guide cover, propeller blades and a bullet housing, the motor is arranged in a cabin composed of an end cover, a cylindrical shell and a conical shell in a sealed mode, one end of the hub connecting shaft is fixed to a motor rotor through a flange base, the other end of the hub connecting shaft penetrates through the conical shell to be detachably connected with the bullet shell cover and is matched with a nut to achieve positioning of propeller blades, and a flat key groove is formed in the periphery of the section, located in the flow guide cover, of the hub connecting shaft. The conical shell is connected with the propeller blades through key groove fit, and the conical shell and the flow guide cover are connected through a plurality of cover shell supporting columns. While the waterproof performance is ensured, the whole structure can be conveniently and nondestructively disassembled, so that the repeated utilization rate of each component is improved; the cost is reduced, and meanwhile, the stability of the hub machine rotating shaft under the low-speed operation working condition can be considered.

    本发明属于水下低速推进器领域,具体涉及一种电机直驱式无轴承可方便拆卸式水下推进器。包括端盖、电机、柱形外壳、毂机连轴、罩壳支撑柱、锥形外壳、导流罩、螺旋桨叶和子弹壳罩;电机密封设置在由端盖、柱形外壳和锥形外壳组成的舱室内,毂机连轴一端通过法兰底座与电机转子固定,另一端穿过锥形外壳后和子弹壳罩可拆卸连接、并和螺母配合实现对螺旋桨叶的定位,毂机连轴位于导流罩内段的外周开有平键槽,通过键槽配合与螺旋桨叶连接,锥形外壳和导流罩通过多个罩壳支撑柱连接。本发明能够在保证防水性能的同时,整体结构可实现方便无损地拆卸,从而提高各部件重复利用率;降低成本的同时,还能兼顾毂机转轴在低速运行工况下的稳定性。


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    Title :

    Motor direct drive type bearingless underwater propeller convenient to disassemble


    Additional title:

    一种电机直驱式无轴承可方便拆卸式水下推进器


    Contributors:
    YANG ZI (author) / SHI YAN (author)

    Publication date :

    2024-11-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



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