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以叶片安装型式和叶片型线为设计因素对6种高速电主轴自冷风扇叶片进行了CFD模拟,得到了风扇内部的流场情况。研究发现,冷却风量和全压随转速的增大而增加,风扇效率随转速的变化基本保持不变;轴功率主要受叶片安装方式的影响,叶片型线的影响不大;弧线径向式叶片和弧线前向式叶片的冷却风量和效率最高,但弧线前向式叶片需要消耗更多的轴功率;风扇内部气流受电主轴端面和风罩的阻碍,容易在叶片根部和风罩处产生漩涡,造成流动损失。
Abstract：Simulations of six types of self-cooled fan blades in high-speed motorized spindle were carried out based on blade mounting type and blade profile. The flow field inside the fan was obtained. The results show that the cooling air volume and the total pressure grows with the increase of rotational speed, while the efficiency basically stay the same. The shaft power is mainly affected by blade installation, while the blade profile has little influence on it. The cooling air volume and efficiency are highest in the arc radial blade and the arc forward blade, but the arc forward blade consumes more shaft power. The internal flow of the fan is hindered by the end face of the motorized spindle and the wind shield, which tends to create a vortex and cause the flow loss.
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基本信息:
DOI：
中图分类号:TH43
引用信息:
[1]黄栋,郭伟科,刘辉等.基于CFD的自冷高速电主轴风扇叶片性能研究[J].机械,2018,45(11):37-41.
基金信息:
广州市科技计划项目(201508010019、201604016130);; 广东省科技计划项目(2015B010136005、2016B090918121)