基于CFD的自冷高速电主轴风扇叶片性能研究
黄栋1，郭伟科1，刘辉1，林禄生2，吴智恒1*
（1.广东省智能制造研究所，广东 广州 510070；2.广州市昊志机电股份有限公司，广东 广州 511356）
摘要：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。
关键词：自冷；高速电主轴；风扇叶片；CFD
中图分类号：TS642；TP391.9 文献标志码：A doi：10.3969/j.issn.1006-0316.2018.11.009
文章编号：1006－0316 (2018) 11－0037－05
Performance Research of Self-Cooled Fan Blade in High-Speed Motorized Spindle Based on CFD
HUANG Dong1，GUO Weike1，LIU Hui1，LIN Lusheng2，WU Zhiheng1
( 1.Guangdong Institute of Intelligent Manufacturing, Guangzhou 510070, China;2.Guangzhou Haozhi Industrial Co., Ltd., Guangzhou 511356, China )
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.
Key words：self-cooled；high-speed motorized spindle；fan blade；CFD
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收稿日期：2018－02－08
基金项目：广州市科技计划项目（201508010019、201604016130）；广东省科技计划项目（2015B010136005、2016B090918121）
作者简介：黄栋（1988－），男，广西玉林人，硕士，工程师，主要研究方向为机械装备可靠性数值模拟。*通讯作者：吴智恒（1970－），男，广西南宁人，硕士，教授级高工，主要研究方向为先进制造技术。
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