ULTRA-SHORT ELECTROMECHANICAL SERVO MECHANISM FOR MECHANICAL FAULT SELF-RECOVERY

An ultra-short electromechanical servo mechanism for mechanical fault self-recovery. Two sets of lead screw transmission components having the same lead parameters and bearing capacity are redundantly and coaxially arranged, and are powered by a single servo motor set. A lead screw roll limiting electromagnetic clutch and a nut roll limiting electromagnetic clutch are used for realizing fault isolation when a primary bearing lead screw pair is stuck or jammed. Meanwhile, a standby bearing lead screw pair is started to synchronously complete mechanical fault self-recovery. Therefore, miniaturization and integration are aimed while the performance of the machine is not compromised. The null length is subjected to ultra-short design to improve the power density of a redundant EMA. La présente invention concerne un servomécanisme électromécanique ultra-court pour l'auto-récupération de défauts mécaniques. Deux ensembles de composants de transmission à vis-mère ayant les mêmes paramètres de conduction et la même c