Design of the Automatic Control of the Plowing Depth of the Integrated Plowing Set

The automatic control of plowing depth of integrated plow is one of the important aspects of agricultural machinery automation. This paper takes the Huanghai-304 tractor-plowing set as example, applying the electro hydraulic proportion valve to replace the traditional hydraulic system as well as the sensor detection technology to collect real-time operating information, the closed loop control of hitch system which performs the plough resistance and position controlling is realized; and a control panel with touch button is adopted to alternate the complicated operating mechanism, therefore, the operation of tractor is easy and accurate, and the automatic control is reached.