The invention discloses a screw pitch adjusting mechanism for a ship propeller and a propeller anti-twist mechanism, and belongs to the technical field of propellers. The adjusting mechanism comprises a protective shell fixed to the ship, a fixed cylinder is installed on the inner wall of the protective shell, and paddles are installed on the fixed cylinder through a movable mechanism and used for adjusting the screw pitch. The propeller anti-twist mechanism comprises a filter plate mounted on the protective shell, one end of the fixed cylinder extends out of the filter plate and is provided with a shifting block, a scraping plate is mounted on the side wall of the shifting block, and the scraping plate is attached to the side wall of the filter plate and is used for scraping impurities such as sea grass on the filter plate; and a crushing assembly is further mounted on the protective shell and used for crushing impurities such as sea grass scraped by the scraping plate. The adjusting speed of the screw pitch of the propeller is increased, meanwhile, the situation that the propeller is damaged or the service life of the propeller is shortened due to the fact that thrust is provided by increasing rotation of the propeller can be avoided, and meanwhile the application range of a ship can be widened by changing the screw pitch to provide the thrust.

    本发明公开了一种船舶螺旋桨用螺距调节机构及螺旋桨防绞机构,属于推进器技术领域。调节机构包括固定在船舶上的保护壳,保护壳的内壁上安装有固定筒,固定筒上通过活动机构安装有桨叶,用于调节螺距;螺旋桨防绞机构包括安装在保护壳上的过滤板,固定筒的一端伸出过滤板,并安装有拨动块,拨动块的侧壁上安装有刮板,且刮板与过滤板的侧壁相贴合,用于刮除过滤板上的海草等杂质;保护壳上还安装有破碎组件,用于对刮板刮出的海草等杂质进行破碎处理。本发明提高螺旋桨螺距的调节速率,同时可避免因增加螺旋桨的转动来提供推力而造成螺旋桨损坏或者减少螺旋桨的使用寿命,同时改变螺距提供推力可以使船舶的使用范围得到提高。


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    Title :

    Screw pitch adjusting mechanism for ship propeller and propeller anti-twist mechanism


    Additional title:

    一种船舶螺旋桨用螺距调节机构及螺旋桨防绞机构


    Contributors:
    HU HAOYU (author) / ZHANG GUICHEN (author)

    Publication date :

    2023-12-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING / B08B Reinigen allgemein , CLEANING IN GENERAL



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