Optimal Design and Simulation of Coal Mining Machine Height Adjustment Control Based on Electro-Hydraulic Proportional Technology
For the coal mining machine drum height adjustment using quantitative pump-directional valve,there are regulation accuracy,low performance,etc.,the optimal design of electro-hydraulic proportional coal mining machine height adjustment hydraulic system,first simulation analysis of open and closed-loop PID height adjustment control,which is able to achieve accurate tracking of the drum trajectory,and the closed-loop PID control characteristics are significantly better than the open-loop control;and in the closed-loop PID height adjustment control based on the above simulation analysis of the impact of disturbed load and overload,the results show that the impact of disturbed load and overload can be reduced.On the basis of the above closed-loop PID height control,the simulation analyses the influence of disturbing load and overload,and the results show that the height adjustment system can realize the automatic adjustment of the height of the drum by ignoring the disturbing load and overloading the drum.
coal mining machineelectro-hydraulic proportional technologyautomatic height adjustment systemclosed-loop PID control
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