DC machine, has cylindrical contact units formed rotatable at commutators, and rotary axis of contact units arranged parallel to rotary axis of commutators, where spring unit controls contact pressure of units on commutators

摘要

The DC machine has cylindrical contact units (11,12) which are in contact with commutators (10). The contact units are formed rotatable at the commutators. A rotary axis of the contact units is arranged parallel to the rotary axis of the commutators. A spring unit is provided for controlling the contact pressure of the contact units on the commutators, where a support device supports the contact units and the spring unit.