DRIVE WITH CLOSED KINEMATIC CHAIN Russian patent published in 1998 - IPC

FIELD: mechanical engineering. SUBSTANCE: in proposed drive with closed kinematic chain change in position of driving member with spherical contact surface relative to two driven members rotating in opposite directions relative to each other, changes driven member rotational speeds which are summed up by planetary gear train and are thus converted into rotational speed of output shaft directly coupled with third kinematic member of closing planetary gear train. Driven members are made with conical contact surfaces differing in designed diameters and width of rolling races and are arranged asymmetrically relative to axis of rotation of driving member. Gear ratio changer is made in the form of swivel plate with axis of turning whose extension coincides with center of spherical surface of driving member. Contact surface clamping mechanism has movable plate, stops and springs. EFFECT: enlarged operating capabilities. 1 dwg