Machine core device of gate quick-pass door

The utility model discloses a machine core device of a gate quick pass door, which comprises a fixed support, a direct drive motor, a coupler, a brake, a rotary drum, a swing door plate and a torque device, the direct drive motor, the coupler, the brake and the rotary drum are mounted on the fixed support, and the swing door plate and the torque device are mounted on the rotary drum. A lower connecting shaft is arranged at the lower end of the rotary drum, an upper connecting shaft is arranged at the upper end of the rotary drum, the brake connecting shaft is connected with an output shaft of the direct-drive motor and the lower connecting shaft, and the upper connecting shaft is connected with the torque device and supported on the self-aligning ball bearing. The small torque device is arranged to provide rotating torque for the rotary drum, and it is guaranteed that the machine core of the quick pass door automatically returns to the opening state through the elasticity of the machine core in the power-off