How is a starter motor for tractors designed?

24 Feb 2017

How is a starter motor for tractors designed?

The Main Field Housing (foremost structural support of a starter motor) consists of a commutator-end/brush-end housing at one end, and a drive-end housing at the other, all held together with bolts. The plate at the commutator-end supports the end containing the starter brushes. A starter motor for tractor uses four brushes- two brushes to transfer current from field coils to the armature and two brushes to produce the ground return path for this current which flows through the armature. Within the starter motor housing is a robust magnetic field created by the field coil magnets, thus creating a flux within the conductor carrying current. The magnetic field of the starter motor is induced by two or more pole shoes and field windings. Made of iron, such pole shoes are connected to the frame with massive screws. The field windings are made of a specific copper ribbon so they can carry current easily to produce an strong magnetic field.

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