Rotating machine
View Patent ↗Provided is a rotating machine capable of obtaining a uniform temperature distribution by improving a cooling air flow to a heat generation portion. The rotating machine has a salient pole rotor ( 11 ) and a stator ( 12 ). The salient pole rotor ( 11 ) has a rotation shaft ( 15 ), a disk-shaped spoke ( 22 ), a cylindrical rib ( 23 ), and a plurality of salient poles ( 25 ) arranged in a radial shape on an outer circumferential surface of the rib ( 23 ), each of the salient poles ( 25 ) being formed along an axial direction of the rotation shaft ( 15 ). The disk-shaped spoke ( 22 ) is provided to an anti-feeding side end of the cooling air of the salient pole rotor ( 11 ). The cylindrical rib ( 23 ) is provided with through-holes ( 231 ) extending from an inner space of the cylindrical rib ( 23 ) through gaps between a plurality of salient poles ( 25 ).
1. A ventilation cooling type rotating machine comprising:
a salient pole rotor; and
a stator surrounding an outer circumference of the salient pole rotor with a predetermined interval to feed a cooling air from one end side of an axial direction of the salient pole rotor, wherein
the salient pole rotor includes:
a rotation shaft;
a disk-shaped spoke integrally installed to an outer circumference of the rotation shaft;
a cylindrical rib having an inner circumferential surface integrally installed to an outer circumference of the disk-shaped spoke; and
a plurality of salient poles arranged in a radial shape on an outer circumferential surface of the cylindrical rib, each of the salient poles being formed along an axial direction of the rotation shaft, wherein
the disk-shaped spoke is provided to an anti-feeding side end of the cooling air of the salient pole rotor,
the cylindrical rib is provided with through-holes extending from an inner space of the cylindrical rib through gaps between the plurality of salient poles, and
a discharge resistor is installed to an outer circumference of the rotation shaft facing the inner circumferential surface of the cylindrical rib.
2. The rotating machine according to claim 1 , wherein the disk-shaped spoke is provided with an air vent penetrating front and back sides of the disk-shaped spoke.
3. The rotating machine according to claim 1 , wherein a fin is integrally provided to an outer circumference of the discharge resistor along an axial direction of the rotation shaft to rotate in synchronization with the rotation shaft to generate a ventilation air in a radial direction.