公开(公告)号：US06674189B2

公开(公告)日：2004-01-06

申请号：US10230272

申请日：2002-08-29

申请人： Akira Watanabe ,  Tetsuo Ichikizaki ,  Keiji Mizuta ,  Kenji Hamanaka

发明人： Akira Watanabe ,  Tetsuo Ichikizaki ,  Keiji Mizuta ,  Kenji Hamanaka

IPC分类号： H02K900

CPC分类号： B23Q11/127 ,  B23Q11/0883 ,  Y10T409/303976 ,  Y10T409/309352 ,  Y10T409/309464

摘要： A spindle apparatus of a machine tool comprises a main spindle rotatably supported in a housing via bearings. A helium circulation system is provided for introducing helium, lower in density and fluid pressure than air, through a helium supply port into a gap on the outer periphery of the main spindle within the housing, and for discharging helium to the outside through a helium discharge port. The main spindle is rotated in an atmosphere of the helium. The spindle apparatus is simple in structure, but can minimize the power loss of the main spindle and reduce the motor power, and also gives a cooling effect.

摘要翻译： 机床的主轴装置包括通过轴承可旋转地支撑在壳体中的主轴。 提供了一种氦循环系统，用于将氦气，密度和流体压力低于空气，通过氦气供应口进入壳体内主轴外周的间隙，并通过氦气排出氦排出外部 港口。 主轴在氦气氛中旋转。 主轴设备结构简单，但可以最大限度地减少主轴的功率损耗，降低电机功率，同时也给出了散热效果。