| 单头等螺距梯形齿螺杆转子型线的干涉问题研究 |
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| 引用本文： | 张世伟,徐成海,祖文文,赵瑜. 单头等螺距梯形齿螺杆转子型线的干涉问题研究[J]. 真空科学与技术学报, 2007, 27(1): 46-49 |
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| 作者姓名： | 张世伟 徐成海 祖文文 赵瑜 |
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| 作者单位： | 东北大学机械工程与自动化学院,沈阳,110004 |
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| 摘 要： | 本文针对无油螺杆式真空泵中一种常用的单头等螺距梯形级齿的螺杆转子型线,研究讨论了二转子级齿间的干涉问题。提出了保证二转子不发生干涉的二种解决方案———平移齿面法和内凹齿面法。分别推导得到齿面平移距离和内凹齿面母线方程的计算公式。其中内凹齿面螺杆转子型线在国外多种螺杆式真空泵产品中得到实际应用
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| 关 键 词： | 双螺杆真空泵 转子型线 齿型干涉 内凹齿面 |
| 文章编号： | 1672-7126（2007）01-046-04 |
| 修稿时间： | 2006-03-07 |
Tooth Interference of Single-Threaded Trapezoidal Rotor Profile and Fixed Pitch Screw in Dry Twin Screw Vacuum Pump |
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| Zhang Shiwei,Xu Chenghai,Zu Wenwen,Zhao Yu. Tooth Interference of Single-Threaded Trapezoidal Rotor Profile and Fixed Pitch Screw in Dry Twin Screw Vacuum Pump[J]. JOurnal of Vacuum Science and Technology, 2007, 27(1): 46-49 |
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| Authors: | Zhang Shiwei Xu Chenghai Zu Wenwen Zhao Yu |
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| Abstract: | The motion of the two rotors with single-threaded,equal pitch trapezoidal profile was theoretically analyzed to eliminate the tooth interference.Two possible solutions were suggested,one involves the translation of the tooth-surface,and the other assumes the negatively-cambered tooth-surface.Formula to evaluate translation of the tooth-surface and the equation to describe the generatrix of the negatively cambered sooth-surface were derived,respectively.Applications of the negatively-cambered tooth-surfaces scheme were tentatively discussed. |
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| Keywords: | Twin-screw vacuum pump Rotor profile Tooth interference Curved tooth surface |
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