Automatic cleaning and cooling device for carbon ring of synchronous motor

The utility model relates to an automatic cleaning and cooling device for a synchronous motor carbon ring, and belongs to the technical field of synchronous motors. Comprising a nozzle, the nozzle is arranged below a carbon ring, the carbon ring is arranged on an output shaft of a synchronous motor, a carbon brush support is arranged on the outer side of the carbon ring, and carbon brushes which are evenly arranged at intervals are annularly arranged on the carbon brush support; an air inlet of the nozzle is connected with an air pipe, an air outlet of the nozzle faces the friction position of the carbon ring and the carbon brush, a control valve is arranged on the air pipe, and the control valve is in signal connection with a controller. And an insulating pipe is arranged between the nozzle and the air pipe. The nozzle is a universal nozzle. The device is simple in structure and convenient to operate; and carbon powder detained on the outer layer of the carbon brush is automatically cleaned, the carbon powde