One end of the valve is provided with a small-pitch end plug, and the other end of the valve is fixedly provided with a U-shaped fork. The bushing is pressed and fixed in an inner hole of a round mounting opening extending out of the speed regulator shell in an interference manner; the end, provided with the small-distance end plug, of the valve is assembled in the lining in a micro-gap mode. A return spring sleeved on the valve and fixed in the U-shaped fork groove is pressed on the adjusting washer; the cap is sleeved on the U-shaped fork, the adjusting washer and the excircle of the circular mounting port and is fixed on the circular mounting port; an oil groove is formed in the valve, the bushing is provided with a high-pressure oil outlet and a high-pressure oil inlet which are communicated with the oil groove, and a bushing inner cavity at the tail end of the small-distance end plug is an oil return cavity; in a normal working state, the high-pressure oil outlet is communicated with the oil groove, and during small-distance limiting, the small-distance end plug just seals the high-pressure oil outlet. The propeller speed regulator provided by the invention has a small-pitch limiting and fixed-pitch protection function, and has beta control and propeller reversing functions, so that the propeller structure becomes simple, the size becomes small, and the mass becomes light.

    本发明公开了一种螺旋桨调速器贝塔活门组件,活门一端设置有小距端堵,另一端固定有U型叉;衬套过盈压装固定在调速器壳体探出的圆形安装口的内孔内;活门有小距端堵的一端微间隙装配在衬套内;套在活门上并固定在U型叉槽内的复位弹簧压接在调整垫圈上;帽盖套在U型叉、调整垫圈和圆形安装口外圆上并固定在圆形安装口上;活门上设置有油槽,衬套设置有与油槽连通的高压油出、进口,小距端堵末端的衬套内腔为回油腔;正常工作状态下,高压油出口与油槽连通,小距限动时,小距端堵正好封闭高压油出口。安装本发明的螺旋桨调速器具有小距限动定距保护功能,具有β操纵和反桨功能,使螺旋桨结构变得简单,体积变小,质量变轻。


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    Title :

    Propeller governor beta valve assembly


    Additional title:

    一种螺旋桨调速器贝塔活门组件


    Contributors:
    TANG SIJIA (author) / HAO LI (author) / CHEN SHUANGSHUANG (author) / ZHANG HEFANG (author) / WANG XILE (author)

    Publication date :

    2021-03-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



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