Series excitation gear motor

The utility model discloses a series excitation speed reduction motor, which comprises a motor and a speed reducer in transmission connection with the motor, the motor comprises a casing, a commutator, a rotor shaft, a rotor winding, a rotor core, a stator and an excitation winding arranged on the stator, the stator is also provided with a brake winding, the axial direction of the rotor shaft is defined as a first direction, and the axial direction of the rotor shaft is defined as a second direction. The direction perpendicular to the first direction in the same plane is a second direction, the brake winding is located on the inner side of the excitation winding in the second direction, one end of the brake winding is electrically connected with one end of the rotor winding, and the other end of the brake winding is electrically connected with the other end of the rotor winding through the first electromagnetic switch. According to the utility model, the brake winding is additionally arranged on the stator, s