Dc motor controller of the brush device is what

There are many components of dc motor controller. Today we want to say is brush device. Brush device belongs to the dc motor controller in the part of the stator. Used to introduce or derivation of dc voltage and dc current. It is divided into brush, brush, brush brush rod and rod and other parts. Brush is put inside brush, use the spring compression, make good sliding contact between brush and commutator; Brush brush is fixed on the brush rod, rod is mounted on a circular brush rod seat, and keep each other insulation between them. Brush rod holder and placed within or bearing cover, the circumferential position can be adjusted, and needs to be fixed after set. What has been discussed above, we know about the brush dc motor controller device?