Jam tolerant geared rotary actuator for multiple actuator systems with a single prime mover
AssigneeSundstrand Corporation
InventorDuane H. Grimm
Life of this patent
Estimating the term…
Abstract
A geared rotary actuator (1) including a compound input stage (3, 5) and a compound output stage (4, 6) with the input stage (3, 5) including a sun gear (24) with gear portions (24a, 24b) respectively meshing with a drive gear (23) and further gear (25). Input/output link members (28, 29) connect the input stage (3, 5) with planet gears (26, 27) of the output stage (4, 6) so as to provide uninterrupted controlled speed, torque and power delivery to an output (31, 32) and through shaft (S) of the geared rotary actuator (1) even upon an occurrence of a jam in the geared rotary actuator (1).
Claims13
A geared rotary actuator comprising:
- means defining a compound input stage of the geared rotary actuator including at least one sun gear having a first gear portion and a second gear portion, a drive gear having a gear portion meshing with said first gear portion of said sun gear, and a further rotatably mounted gear fixed with respect to said sun gear and having a gear portion meshing with said second gear portion of said sun gear;
- means defining a compound output stage of the geared rotary actuator;
- and
- means interconnecting the compound input and compound output stages so as to provide uninterrupted controlled speed, torque and power delivery from an input to an output of the geared rotary actuator through said input stage and said output stage even upon an occurrence of a jam in the geared rotary actuator, said means interconnecting including a pair of input/output link members respectively coupling the drive gear and further gear with the compound output stage.
A geared rotary actuator comprising:
- means defining a compound input stage of the geared rotary actuator;
- means defining a compound output stage of the geared rotary actuator including at least two planet gears each having a first and second gear portion, a common output member including first and second ring gears respectively meshing with the first gear portion of one of said two planet gears and with the second gear portion of the other of said two planet gears;
- and
- means interconnecting the compound input and compound output stages so as to provide uninterrupted controlled speed, torque and power delivery from an input to an output of the geared rotary actuator through said input to an output of the geared rotary actuator through said input stage and said output stage even upon an occurrence of a jam in the geared rotary actuator, said means interconnecting including a pair of link members arranged between the compound input stage and the first gear portions of the respective planet gears.
Dependencies are inferred from the claim text.