| 摘要 |
A three-axis actuator assembly comprises pitch, yaw, and roll hydraulic actuators (1, 2, 3) supported indirectly by corresponding brackets (4, 5, 6) in series relation. Each bracket is supported for rotation about the axis of the prior actuator in the bracket for the prior actuator so that the brackets, rather than the actuators, carry the loads other than torques. The torque reaction forces imposed on each actuator casing are carried by wide thin torque reaction bands (25) connected between the casing and the bracket for that actuator. Each band has an offset segment located between the actuator and the bracket to accommodate by flexure tolerance variations without imparting any significant side loads to the actuator. The bracket (4) for each actuator includes a manifold plate carrying a servovalve (PSV) that communicates through orifices (200, 202, 204, 206) and couplings (33) with the ports of the actuator (1). Anti-backlash coupling assemblies may connect the wing shafts of the actuators with the bracket for the next actuator or with the tool holder, in the case of the last actuator. <IMAGE> |
