The invention relates to a propeller capable of rapidly adjusting the pitch angle limit and a limit adjusting method thereof, the propeller comprises a propeller hub, blades, a pitch changing mechanism, an upper limit device and a lower limit device, the pitch changing mechanism comprises a nut and a sliding block, and the nut drives the blades to rotate through the sliding block so that the pitch angle of the blades can be changed; the upper limit device comprises a first limit switch, an upper limit plate and a first control mechanism, and the first control mechanism adjusts the upper limit of the pitch angle by controlling the change of the distance between the upper limit plate and the nut; the lower limiting device comprises a second limiting switch, a lower limiting plate and a second control mechanism, and the second control mechanism adjusts the lower limit of the pitch angle by controlling the distance between the lower limiting plate and the nut. The limit adjusting method of the propeller comprises the steps that the first control mechanism and the second control mechanism are adjusted, and adjustment of blade pitch angle limit limiting is achieved. By designing the control mechanism, soft limiting and hard limiting of the limiting position of the pitch angle are achieved, and it is guaranteed that the pitch angle of the propeller is normally used within the preset range.

    本申请涉及一种快速调节桨距角极限限位的螺旋桨及其极限调节方法,螺旋桨包括桨毂、桨叶、变距机构、上极限装置、下极限装置,变距机构包括螺母和滑块,螺母通过滑块驱动桨叶旋转使桨叶的桨距角变化;上极限装置包括第一限位开关、上限位板、第一控制机构,第一控制机构通过控制上限位板与螺母之间距离的改变调节桨距角上极限;下限位装置包括第二限位开关、下限位板、第二控制机构,第二控制机构通过控制下限位板与螺母之间距离调节桨距角下极限。螺旋桨的极限调节方法包括:调节第一控制机构和第二控制机构,实现桨叶桨距角极限限位的调节。通过设计控制机构,实现桨距角极限位置的软限位和硬限位,保证螺旋桨桨距角在预设的范围内正常使用。


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    Title :

    Propeller capable of quickly adjusting limit of pitch angle and limit adjusting method thereof


    Additional title:

    一种快速调节桨距角极限限位的螺旋桨及其极限调节方法


    Contributors:
    LI GUANGLIANG (author) / SHENG ZHIQING (author) / JIANG WENGUO (author) / WEI ZHONGWU (author) / DONG JINGANG (author)

    Publication date :

    2022-04-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



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