Transmission for power amplification for solid state actuators, especially piezoelectric actuators, has control displacement null point associated with dead point of elbow lever

摘要

The transmission has a transmission ratio that varies substantially in proportion to the control movement of the actuator. An elbow lever (5) connected to the frame via a rotary joint (6) is connected to the actuator's drive element and via an elbow joint (7) to an elbow lever (8) longitudinally biased by the spring drive and connected to the frame (12) via a rotary joint (9) in series with a prismatic joint (10). The transmission output element is coupled to that of the actuator and the transmission contains a joint train with one degree of freedom consisting of at least two elbow levers and one elbow joint and a spring drive alternately generating and acquiring transmission power. The control displacement (delta) null point is associated with a dead point of the elbow lever.