Illinois Tool Works Inc.
GEAR TRAIN FOR A VALVE ACTUATOR

Abstract:

A gear train (4) for a valve actuator (1) includes a motor (2) and a valve shaft (3), and is configured to rotationally couple the motor to the valve shaft. The gear train includes a motor gear (7) attachable to a motor shaft (5), and a face gear (8) mountable such that a rotational axis (9) of the face gear is perpendicular to a rotational axis (6) of the motor. The face gear includes an axially directed face gear portion (10) for engaging the motor gear. The gear train also includes an output gear (20) attachable to the valve shaft. The output gear and valve shaft are mountable such that a rotational axis (21) of the output gear is parallel to the rotational axis of the face gear. The gear train also includes a pinion gear arrangement configured to rotationally couple the face gear to the output gear.