초록 ▼

A geared rotary actuator comprises at least two axially aligned compound epicyclic gear trains driven by an input shaft so that output ring gears in each train rotate relatively. Sun gears in adjacent gear trains are drivingly coupled to the input shaft through a differential device which permits li

A geared rotary actuator comprises at least two axially aligned compound epicyclic gear trains driven by an input shaft so that output ring gears in each train rotate relatively. Sun gears in adjacent gear trains are drivingly coupled to the input shaft through a differential device which permits limited rotational displacement between the sun gears. An element, for example an aircraft lift control surface, may be mounted on one set of the ring gears by means of spindles which extend normally of a plane which includes the axes of the ring gears, so that as a result of stresses therein the element may tilt locally about the spindles.

대표청구항 ▼

A rotary actuator comprising an input shaft at least two axially aligned gear trains each gear train having an input sun gear drivingly connected to said input shaft a plurality of compound planet gears each having a first pinion and two second pinions said first and second pinions being secured tog

A rotary actuator comprising an input shaft at least two axially aligned gear trains each gear train having an input sun gear drivingly connected to said input shaft a plurality of compound planet gears each having a first pinion and two second pinions said first and second pinions being secured together for rotation in unison, said first pinion meshing with said sun gear and with a first output ring gear and second output ring gears drivingly coupled for rotation by respective ones of said second pinions characterised in that said sun gears in adjacent gear trains being drivingly coupled to said input shaft through a differential device for permitting limited rotational displacement between said sun gears in adjacent gear trains.