Rotor head unit for helicopter or surface airplane, has blade holders and bearing unit movably arranged to each other, where movability between bearing unit and blade holders is enabled totally or partially by solid joints

摘要

The rotor head unit has blade holders (27) and a bearing unit (33) movably arranged to each other, and solid joints (29) provided in a control area of rotor blades. The movability between the bearing unit and the blade holders is enabled totally or partially by the solid joints. An electric motor for the drive of the rotor is realized on the bearing unit, and a belt pulley for driving the rotor over an engine is realized on the bearing unit. Control movements are transferred in interior of the bearing unit.