The invention discloses a fixed fishing net collecting and cutting device for an underwater vehicle, which comprises an anti-net cover, a fishing net collector, a rectifying fin and a net cutting blade, the anti-net cover is arranged at the tail end of a propeller shaft of the underwater vehicle, the fishing net collector is arranged on a propeller hub of the underwater vehicle, and the rectifying fin is arranged on the anti-net cover. The fishing net collector is of a flange-shaped structure, a groove is formed between the fishing net collector and a propeller hub, a plurality of rectification fins for playing a role in prewhirling incoming flow are arranged on the anti-net cover, a plurality of net cutting blades are installed on the side, close to the propeller hub, of the anti-net cover, and the net cutting blades are arranged in the groove formed by the fishing net collector. The invention aims to make full use of the narrow gap between the tail part of the underwater vehicle and the propeller, and can realize incoming flow pre-rotation while solving the problem of fishing net winding, thereby realizing the improvement in the aspects of propulsive efficiency, noise reduction performance and the like.

    本发明公开了一种用于水下航行体的固定式渔网收集切割装置,包括防网罩、渔网收集器、整流鳍片和割网刀片,所述防网罩安装在水下航行体的桨轴末端,所述渔网收集器安装在水下航行体的螺旋桨桨毂上,所述渔网收集器呈法兰状结构且与螺旋桨桨毂之间形成凹槽,所述防网罩上设有用于对来流起到预旋作用的多个整流鳍片,所述防网罩靠螺旋桨桨毂的一侧安装有多个割网刀片,所述割网刀片布置于渔网收集器形成的凹槽中。本发明旨在充分利用水下航行体尾部与螺旋桨间的狭小间隙,在解决渔网缠绕问题的同时,还可实现来流预旋,实现推进效率、减噪性能等方面的提升。


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    Title :

    Fixed fishing net collecting and cutting device for underwater navigation body


    Additional title:

    一种用于水下航行体的固定式渔网收集切割装置


    Contributors:
    YE JINMING (author) / LIU BOYUN (author) / MA CHENGQIAN (author) / WU YUANRUN (author)

    Publication date :

    2024-07-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING / B26D Schneiden , CUTTING



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