The Simulation of Weight-fixed Loading Hydraulic System with Skip Based on AMESim

The simulation model of the weight-fixed loading hydraulic system with skip at Wangshiwa Coal Mine was built to analyze the flow and pressure change of the system. According to the simulation results of one working cycle of hydraulic fix-weight loading, the lifting speed of hydraulic cylinder is smooth; the piston has a small descending displacement during the loading process, the relative error of system is less than 0.09%. The fast descending of fully loaded skip could lead to a greater impact for the hydraulic cylinder, and it is suggested that the skip should be hoisted before hydraulic cylinder reposition. The fix position of pressure transmitter among the hydraulic cylinder and electromagnetic reversing valve has no effect on the measure results.