| 引用本文: | 侯珍秀,张吉涛,陈时锦,刘金利,胡兴鸿.高速铣床主轴驱动透平叶栅设计与数值模拟[J].哈尔滨工业大学学报,2010,42(11):1744.DOI:10.11918/j.issn.0367-6234.2010.11.014 |
| HOU Zhen-xiu,ZHANG Ji-tao,CHEN Shi-jin,LIU Jin-li,HU Xing-hong.Design and numerical simulation on spindle-driven’s turbine cascade of high-speed milling[J].Journal of Harbin Institute of Technology,2010,42(11):1744.DOI:10.11918/j.issn.0367-6234.2010.11.014 |
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| 摘要: |
| 为使高精密数控铣床的主轴转速达到160000r/min,刀头切削力矩小于0.005N·m,针对驱动摆角铣头主轴的透平式气马达叶栅进行了气动力计算和平面造型设计,利用Fluent软件对其气动特性进行了数值模拟,并与理论计算对比验证模拟的正确性.研究叶栅气动特性随进气角、叶片数和叶高变化的规律,获得了使叶栅气动性能最佳的参数组合,即进气角为21°,叶片数为36,叶片高度为3.5mm时,叶栅的气动性能最佳。 |
| 关键词: 摆角铣头主轴 气马达 设计 数值模拟 FLUENT |
| DOI：10.11918/j.issn.0367-6234.2010.11.014 |
| 分类号:TG54 |
| 基金项目:黑龙江省科技攻关计划项目(GB04A503-2) |
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| Design and numerical simulation on spindle-driven’s turbine cascade of high-speed milling |
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HOU Zhen-xiu, ZHANG Ji-tao, CHEN Shi-jin, LIU Jin-li, HU Xing-hong
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College of Mechanics and Electrics,Harbin Institute of Technology,Harbin 150001,China
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| Abstract: |
| For the spindle speed of high precision CNC milling machine up to 160 000 r/min,the cutting torque of blades less that 0.005 N·m,an aerodynamic calculation and graphic design have been done for the swinging angle milling head spindle-driven turbine-type air motor cascade,and numerical simulation of aerodynamic character has been conducted by using software Fluent.The results have been compared with the theoretical calculations to verify the correctness of simulation.The change of aerodynamic characterictics with inlet angle,leaf number and blade height,has been studied and the best parameters are inlet angle 21°,leaf number 36,and blade height 3.5 mm. |
| Key words: bi-rotary milling head’s principal axis turbo-air-motor design numerical simulation FLUENT |
