With the help of UG three-dimensional software, models of electric spindle and heat pie spindle are established respec-tively. Simulation of the two models is carried out in the analysis software. The impact of oil cooling and heat pipe cooling on tempera-ture field of the spindles is discussed. The research shows that temperature rise in heat pipe cooling system is smal er, and the cool-ing effect is better than the oil-cooling spindle system, that is to say, as a cooling mode, the heat pipe plays a very good role in bal-ancing the temperature field of the spindle system.%使用UG三维建模软件分别建立电主轴以及具有热管元件的电主轴模型,在分析软件中对其进行温度场模拟,讨论在油冷却和热管冷却的不同情况下对电主轴温度场的影响。研究结果表明,热管冷却下的电主轴系统温升变化较小,比用油冷却的电主轴系统散热效果明显,说明热管作为一种冷却方式,对主轴系统的温度场有很好的均衡作用。
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