Electromechanical Actuator and Method for Forced Unlocking of Fuzzy Jamming Fault of Transmission Mechanism

An electromechanical actuator for forcibly unlocking fuzzy jamming fault of a transmission mechanism, comprising a bidirectional electromagnetic braking assembly, a circumferential rotating housing assembly, an axial spline bearing assembly and an electromechanical actuator assembly;

• the electromechanical actuator assembly, the bidirectional electromagnetic braking assembly, the circumferential rotating housing assembly and the axial spline bearing assembly are sequentially arranged on a same axis, the axial spline bearing assembly is mounted inside the circumferential rotating housing assembly so as to provide a linear reciprocation, and the axial spline bearing assembly is connected to an output rotating shaft of the electromechanical actuator assembly to form a screw transmission pair;
• the bidirectional electromagnetic braking assembly is actively energized to generate a radial attraction force and an axial attraction force simultaneously, so that the circumferential rotating housing assembly is disconnected with the electromechanical actuator assembly from a fixed connection therebetween and makes a rotary motion, to forcibly deactivate a connection between the axial spline bearing assembly and the electromechanical actuator assembly, and forcibly remove a fault of jam or lag between a rotor lead screw in the electromechanical actuator assembly and a transmission mechanism of the axial spline bearing assembly.