Self-adaptive electromagnetic clutch

The invention discloses a self-adaptive electromagnetic clutch, which consists of an electricity generator and an electromagnetic clutch, wherein a rotor winding of the electricity generator and a coil or a coil assembly of the electromagnetic clutch are positioned on the same shaft for forming a driving element of the self-adaptive electromagnetic clutch, and the output end of the rotor winding of the electricity generator is directly connected with the coil of the electromagnetic clutch, or is connected with the coil of the electromagnetic clutch through a rectifying control circuit, so the electric power output by the electricity generator can be directly output to the coil of the electromagnetic clutch to generate an electromagnetic field, the intensity of the electromagnetic field is relevant with the rotating speed of the driving element of the electromagnetic clutch, and the engagement and the disengagement can be automatically completed by the self-adaptive electromagnetic clutch through using the ele