Design and Application of Electro-hydraulic System for Excavators
To improve the work efficiency of excavators,on the basis of comparing the advantages and disadvantages of various hydraulic systems of excavators,an electro-hydraulic system is designed for excavators.The electro-hydraulic system for excavators adopts the electronic proportional pump and electronic proportional control multi-way valve developed by the company,as well as the electronic control pilot elements(handle,pedal)and controller from Sauer-Danfoss.The electronic signal output from the controller after operation directly controls the flow of the pump,which reflects quickly and agilely and can realize remote con-trol and driverless or even intelligent operation of the excavator.The electro-hydraulic system for excavators is installed on a PZ-70 excavator for test and verification,achieving the expected effects.
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