Electric hydraulic control device for support legs of milling machine

The invention provides an electric hydraulic control device for support legs of a milling machine. The device comprises an oil source, a front support leg oil cylinder, a flow adjusting loop, pressuremeasuring equipment and a signal processing and indicating module; the flow adjusting loop is connected between the oil source and the front support leg oil cylinder; the pressure measuring equipmentmeasures pressure of a rodless cavity of the front support leg oil cylinder; the signal processing and indicating module is connected with electric control parts in the pressure measuring equipment and the flow adjusting loop, and sends adjusted signals to the flow adjusting loop according to the matching degree of pressure fed back by the pressure measuring equipment and the load to adjust oil liquid entering the front support leg oil cylinder. By means of the device, it can be ensured that in the construction process, the front support leg oil cylinder cannot be suspended in air, the cutting speed of a milling drum