The utility model discloses an agricultural organic waste
biogas residue treatment device which comprises an installation frame, a filtering mechanism is arranged on the installation frame and comprises a filtering cylinder, a center rod, a spiral plate, filtering holes, a motor, a feeding hopper, a liquid discharging
pipe and a discharging
pipe, and a
protection mechanism is arranged between the motor and the center rod. The
protection mechanism comprises a connecting sleeve, a connecting rod, a clamping groove, a sliding hole, a clamping block, a pressure applying block, a pressure spring, a push block and an adjusting mechanism, the connecting sleeve is installed at the output end of the motor, the connecting rod is installed at the bottom end of the center rod, and when the spiral plate is blocked by a hard object, the connecting rod can overcome the preset force of the pressure spring on the push block due to resistance increase, the clamping block is pushed to slide out of the clamping groove, and the adjusting mechanism is adjusted. Idle rotation is formed between the connecting rod and the connecting sleeve, so that the motor is prevented from being damaged due to overload, mechanical faults of equipment under unexpected conditions can be effectively prevented, and
safe operation of the motor can be guaranteed.