Inertia type rotary actuator with controllable service life and adjustable stepping precision and actuation method

The invention discloses an inertia type rotary actuator with controllable service life and adjustable stepping precision and an actuating method. The actuator comprises a device base, a rotary transmission turntable, a rotary load disc, a load disc mounting screw, an arc rhombic ring, a knuckle bearing, an actuating ring, a pre-tightening plate, a disc spring, a pre-tightening rotating jackscrew and a shell. The invention further discloses an actuating method of the actuator. The actuator has the advantages of being simple in structure, long in service life, high in precision, low in power consumption, controllable in service life and adjustable in stepping precision. 一种寿命可控步进精度可调的惯性式旋转作动器及作动方法，该作动器包括装置底座、旋转传动转盘、旋转负载盘、负载盘安装螺钉、圆弧形菱形环、关节轴承、作动环、预紧板、碟簧、预紧转动顶丝和外壳；本发明还公开了该作动器的作动方法，本发明作动器结构简单、寿命高、精度高、功耗低，寿命可控步进精度可调的优点。