Axial motor for traction machine and apparatus for fabricating stator core thereof
AssigneeNawootec Co., Ltd.
InventorJeung Woo LEE
Life of this patent
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Abstract
An axial motor for a traction machine and an apparatus for fabricating a stator core thereof is fabricated by rolling a thin plate having open slots such that turns of the thin plate are stacked on each other. The outer circumferential surface of the thin plate is pressed using a pressing roller while the thin plate is being rolled. The thin plate is not deformed by tension, the open slots aligned in positions are accurately maintained, and the thin plate is prevented from being loose, thereby significantly lowering a defect ratio in fabrication, lowering fabrication costs, and fabricating a high-quality product.
Claims11
An apparatus for fabricating a stator core of an axial motor for a traction machine, the apparatus comprising:
- a supply unit supplying a thin plate made of a metal and wound in a roll;
- a slot machining unit machining open slots in the thin plate supplied by the supply unit, such that the slots are open toward an edge of the thin plate and are spaced apart from each other in a direction in which the thin plate is supplied;
- a winding unit receiving the thin plate from the slot machining unit and winding the thin plate around a winding roller such that the thin plate is rolled and turns of the thin plate are stacked on each other;
- a pressing unit pressing an outer circumferential surface of the thin plate, which is wound around the winding roller, toward a center of the winding roller;
- and
- a controller controlling operations of the supply unit, the slot machining unit, the winding unit, and the pressing unit such that the open slots of the thin plate are aligned in radial directions when the thin plate is wound around the winding roller.
A method of fabricating a stator core of an axial motor for a traction machine, the method comprising:
- supplying a thin plate made of a metal and wound in a roll;
- machining open slots in the thin plate supplied by the supply unit, such that the slots are open toward an edge of the thin plate and are spaced apart from each other in a direction in which the thin plate is supplied;
- receiving the thin plate having the open slots and winding the thin plate around a winding roller such that the thin plate is rolled and turns of the thin plate are stacked on each other;
- and
- pressing an outer circumferential surface of the thin plate, which is wound around the winding roller, toward a center of the winding roller using a pressing roller,
- wherein an operation of the winding roller is controlled such that a winding rotational speed of the winding roller gradually increases at every rotation.
Dependencies are inferred from the claim text.