What is the purpose of the armature in a DC main driving motor?

The armature in a DC main driving motor serves the essential function of converting electrical energy into mechanical energy. When direct current flows through the armature windings, it creates a magnetic field that interacts with the magnetic field of the stator (either permanent magnets or electromagnets). This interaction produces torque, which causes the rotor to turn, thereby generating mechanical motion. The efficiency and effectiveness of this energy conversion are critical to the motor's operation, enabling it to perform work in various applications, from elevators to other machinery.

In contrast, while controlling power output, stabilizing voltage, and managing thermal output are important aspects in electrical systems, they are not the primary function of the armature itself. The armature focuses specifically on the energy conversion process necessary for mechanical movement.