Protection method for preventing belt from being scratched

The invention discloses a protection method for preventing a belt from being scratched. The protection method comprises the following steps that S1, a normal current value and an abnormal power failure current value for motor operation are set; S2, the current of a motor is monitored in real time to obtain a real-time current value; and S3, the real-time current value is compared with the set normal current value and the abnormal power failure current value, and when the real-time current value is larger than the normal current value and smaller than the abnormal power failure current value, the motor operates normally; and when the real-time current value is larger than or equal to the abnormal power failure current value, the motor stops operation; According to computer program control, the real-time current value is compared with the set normal current value and the abnormal power failure current value, and the set system can effectively prevent the belt from being scratched through in time. 本发明公开了一种防皮带划穿保