| 螺杆真空泵单头等螺距内凹转子型线研究 |
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| 引用本文： | 陈长琦,贾寅,郑定保,王德顺.螺杆真空泵单头等螺距内凹转子型线研究[J].真空,2011,48(3). |
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| 作者姓名： | 陈长琦 贾寅 郑定保 王德顺 |
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| 作者单位： | 1. 合肥工业大学真空科学技术与装备研究所,安徽合肥,230009
2. 上海神工真空设备制造有限公司,上海,200070 |
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| 摘 要： | 基于螺杆啮合原理,通过数学推导,得到单头等螺距梯形内凹型线的完整型线方程,包括齿面方程、端面截形以及轴向截形.给出了面积利用系数公式以及理论抽速公式,讨论了型线中各参数对干式螺杆真空泵的性能的影响.最后运用Solidworks软件建模,通过模拟啮合,验证了型线方程的正确性一拥有完整的啮合线,且啮合运转过程中不会发生齿面干涉.
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| 关 键 词： | 螺杆真空泵 型线 啮合原理 面积利用系数 螺杆转子 |
On the profile of single thread and fixed pitch screw for the screw vacuum pump |
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| CHEN Chang-qi,JIA Yin,ZHENG Ding-bao,WANG De-shun.On the profile of single thread and fixed pitch screw for the screw vacuum pump[J].Vacuum,2011,48(3). |
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| Authors: | CHEN Chang-qi JIA Yin ZHENG Ding-bao WANG De-shun |
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| Affiliation: | CHEN Chang-qi1,JIA Yin1,ZHENG Ding-bao2,WANG De-shun2(1.Institute of Vacuum Technology and Equipment,Hefei University of Technology,Hefei 230009,China,2.Shengong Vacuum Equipment Make Co.,Ltd.,Shanghai 200070,China) |
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| Abstract: | Through mathematical derivation with the screw engagement theory,the complete equations of the rotor profile with single thread,fixed pitch screws,trapezium and concave tooth surface were given,including the axial section profile,end face profile and the tooth surface equation.The formulas of area utilization coefficient and theoretical pumping speed were also given to discuss the effects of each parameter on the performance of dry scew vacuum pump.Finally through the simulation of meshing process by Solidw... |
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| Keywords: | screw vacuum pump profile engagement theory area utilization coefficient screw rotor |
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