Generator excitation carbon brush on-line monitoring device

The utility model relates to a generator excitation carbon brush on-line monitoring device comprising a collector ring, the periphery of the collector ring is fixedly provided with a brush holder frame, the brush holder frame is connected with a plurality of brush boxes through brush holders, electric brushes are radially limited in the brush boxes through spring clamps, the bottoms of the electric brushes are attached to the outer surface of the collector ring, and the brush holders are connected with the brush boxes through the spring clamps. The generator excitation carbon brush on-line monitoring device comprises brush holders, the top portions of the brush holders are vertically limited through compression springs in a compression joint mode, the compression springs are fixedly connected to spring clamps, chip resistor temperature sensors are attached to the brush holders and connected with an external industrial personal computer through a temperature collector, the industrial personal computer is exter