摘要
为了开发能适应恶劣工况、高效节能和安全运行的螺杆真空泵,设计了一种自平衡的内部压缩螺杆转子模型。使用借助Hermite插值理论导出圆柱变螺距螺旋线的参数方程,构建了变螺距设计参数、尾部压缩级数与螺旋角度的变量关系式,建立了自平衡螺杆转子优化设计模型。通过计算,优化转子质量轴向分布,无需在螺杆转子两端和齿顶减重而达到良好的自身动平衡,动平衡试验证明了设计模型的可靠性,为螺杆真空泵的动平衡研究提供了参考依据。
In order to develop screw vacuum pumps working efficiently,running safely and adapting to bad working conditions,a screw rotor with automatic dynamic balancing and changes in volume was designed. The cylinder variable pitch helicaline parameter equation was derived using Hermit＇s interpolation theory. The relationships among variable pitch design parameters,tail compression stages and spiral angle were established. Then,the optimal design model for a screw rotor with automitic dynamic balance was built. Through calculation, the axial distribution of the rotor mass was optimized,the dynamic balance reached without the weight subtraction at both ends and tooth tip of the rotor. The reliability of the design model was verified with the dynamic balance tests. The results provided a reference for studying dynamic balance of screw vacuum pumps.
出处
《振动与冲击》
EI
CSCD
北大核心
2015年第19期144-149,156,共7页
Journal of Vibration and Shock
基金
浙江省公益性技术应用研究计划项目(2014C31035)
关键词
螺杆真空泵
静平衡
动平衡
螺杆转子
变螺距
screw vacuum pump
static balance
dynamic balance
screw rotor
variable pitch
作者简介
巫修海 男，博士生，副教授，1977年生
通信作者 陈文华 男，博士，教授，博士生导师，1963年生
