The helicopter rotor head assembly 100 is suitable for a helicopter with a gearbox 101 driving the rotor head and bearing the helicopter weight in flight. The assembly has a number of servo units 104a-d, each with an output shaft (fig.3,302); a mounting structure 105 secured to the gearbox; and an actuator (fig.3,9), fixed to the mount, suitable for connection to a swash plate control rod 108a-d. Each servo unit is releasably attached to the mount, by an element such as a screw 14, so the output shaft engages the actuator. The rotor head may have a first swashplate 102a coupled to a first drive shaft (fig.1,1006), and a second swashplate 102b coupled to a second co-axial drive shaft (fig.1,1008). Preferably there are four servo units, three control the position and/or orientation of the swashplates, the fourth adjusts the axial position of the first swashplate relative to the second swashplate. A control arm (fig.3,13) may be coupled to the actuator and the control rod, converting actuator rotation into linear control rod motion. The gearbox may have an opening which the control rod passes through, between the actuator and the swashplate.


    Access

    Download


    Export, share and cite



    Title :

    Helicopter servo mounting


    Contributors:

    Publication date :

    2025-01-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge / B64U



    HELICOPTER SERVO MOUNTING

    MANLEY ROBERT | European Patent Office | 2025

    Free access

    Helicopter Servo Cylinder Inspection Jig

    LEE HAN KYU | European Patent Office | 2019

    Free access

    HELICOPTER ENGINE MOUNTING

    SAE Technical Papers | 2020


    Helicopter equipment mounting post

    COOK DREW O'BRIEN / BUSH KOREY LYNN | European Patent Office | 2016

    Free access

    Helicopter engine mounting assembly

    ZAMEROSKI DANIEL | European Patent Office | 2019

    Free access