DRIVE KINEMATIC UNIT FOR UNMANNED FLYING VEHICLE Russian patent published in 1998 - IPC

FIELD: aircraft manufacture; designing of drive kinematic units of unmanned flying vehicles for transmission of torque from engine to transmission system of coaxial main rotors. SUBSTANCE: drive kinematic unit includes engine clutch subunits and transmission system clutches connected by means of drive shafts; transmission system clutch subunit includes external splined coupling engageable with other splined coupling; external splined coupling is connected with one end of drive shaft by means of pin-and-collar joint; engine clutch unit includes internal splined coupling and external splined coupling engageable with it by means of additional teeth; internal splined coupling is connected with other end of drive shaft by means of pin-and-collar joint; according to invention, engine clutch subunit is provided with taper adapter for transmission of torque from engine to drive shaft through thrust clutch and ball bearings; thrust clutch is rigidly centered between taper adapter and external splined coupling by means of ball bearings. Engine clutch subunit may be provided with trunnion connected with taper adapter for transmission of torque from taper shaft of engine. EFFECT: optimization of unit construction. 5 cl, 32 dwg