Simulation and Optimization Design of Mining Intrinsically Safe Electromagnets Based on Maxwell
The intrinsic safety electromagnet part of the mine electromagnetic pilot valve is the hub of converting electrical signal into hydraulic signal,which is widely used in the electrohydraulic control system of fully mechanized mining face.Takes intrinsically safe electromagnet for mining as the research object,introduces the main structure and working principle of intrinsically safe electromagnet,establishes a two-dimensional simulation model of electromagnet using finite element analysis software Maxwell,and simulates and analyzes the magnetic field distribution of each part,the movement of moving core and the change of coil current during the operation of intrinsically safe electromagnet.The optimal ampere-turns are obtained.At the same time,the dynamic characteristics of electromagnet and its dynamic response process are analyzed,and the corresponding fastest dynamic response frequency is obtained.The feasibility of the optimized design is verified by the comparative analysis of the performance of the electromagnet before and after the improvement.
electromagnetsimulationelectromagnetic pilot valveMaxwell
NETL
NSTL
万方数据
