摘要
本文对变量泵驱动的液压挖掘机转台回转速度图和运动规律进行了分析,导出了转台最佳转速和相应的回转循环时间的计算式,提出了双梯形速度图的判据和转台最大转速临界值的计算式,并有实例进行比较.
In this paper,the uppercarriage swing speed figures and theuppercariage motional law for hydraulic excavator driven by variable displacem-ent pumps are analyzed.The calculating formulas for the uppercarriage optimumswing speed and the corresponding duration of the swing cycle are introduced。The determination of twin trapezoidal swing speed figure and the equations oflimiting value for maximum uppercarriage swing speed are derived。In themeantime,examples are given to make comparison。
关键词
变量泵
液压
挖掘机
转台
转速
variable displacement pumps
hydraulic excavator
the uppercarriage optimum swing speed
