The invention relates to a heat dissipation type collector
ring device with an internal fan structure and a working method thereof.The heat dissipation type collector
ring device comprises a main shaft, an upper collector ring, a lower collector ring and a
centrifugal fan, the main shaft is arranged in an outer cover, the
centrifugal fan is installed on the main shaft, and the upper collector ring and the lower collector ring are installed on the
centrifugal fan; the upper collecting ring and the lower collecting ring are connected through a collecting ring supporting screw rod, one end of the collecting ring supporting screw rod is matched with a nut to be fixedly connected with the centrifugal fan, a plurality of guide vanes are arranged on the upper collecting ring, internal fan structures are arranged on the upper collecting ring and the lower collecting ring, a plurality of air inlets are formed in the upper end of the outer cover, and air outlets are formed in the lower end of the outer cover. A plurality of air outlets are formed in the lower end of the outer cover, the guide vanes divide
airflow entering from the air inlets into two paths, one path flows into the inner side of the collecting ring, the other path flows through the outer side of the collecting ring, the two paths of
airflow converge at the centrifugal fan and are exhausted from the air outlets, and dust collecting felts are installed in the air outlets. While the temperature of the carbon
brush and the collector ring is reduced, directional collection of carbon
powder can be realized.