旋转机械的转子

• Format: Patent
• Language: Chinese
• Published: 02.03.2018
• Subjects: BLASTING; BRAKES; CLUTCHES; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; COUPLINGS FOR TRANSMITTING ROTATION; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERATION; HEATING; LIGHTING; MECHANICAL ENGINEERING; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; THERMAL INSULATION IN GENERAL; WEAPONS

本发明的旋转机械(100)的转子(10)包括压入固定于轴(4)并对转子铁心(1)在轴的轴向上的位置进行限制的环状的固定构件(3)、以及固定在所述固定构件(3)的外周侧并对埋入在转子铁心(1)内的磁体(5)在轴的轴向上的位置进行限制的端板(2)，该转子(10)利用固定构件(3)来缓解轴(4)与端板(2)的热膨胀差异造成的影响，选定材料，使得固定构件(3)的线膨胀系数的值成为铁制的轴(4)的线膨胀系数与非磁性体的端板(2)的线膨胀系数的中间值。 A rotor of a rotary machine includes a ring-like fixing member press-fit and fixed to a shaft so as to limit a position of a rotor core in a shaft axial direction and an end plate fixed to an outer peripheral side of the fixing member so as to limit a position of a magnet, embedded in the rotor core, in the shaft axial direction. Influences of a difference in thermal expansion between the shaft and the end plate are lessened by the fixing member. A material is selected so that a value of a coefficient of linear expansion of the fixing member becomes equal to an intermediate value between a coefficient of linear expansion of the shaft made of iron and a coefficient of linear expansion of the end plate made of a non-magnetic body.