三螺杆泵型线分析及改进

Contour Line Analysis and Improvement of Triplex Screw Pump

分析了三螺杆泵常用型线的缺点和一般改进型线的不足,给出了严密的改进型线以及刀具计算实例。

The defect of normal contour line and a non —sufficiency of general improved contour line for triplex screw pump are analyzed.Therefore,accu- racy improvement of contour line and the calcula- tion case of cutting-tool is given.