| 摘要 |
PURPOSE: A device and a method for adjusting the grounding pressure of a shovel edge of a snowplow is provided to uniformly maintain the grounding pressure between a shovel edge and a road surface regardless of the curve of the road surface. CONSTITUTION: A device(100) for adjusting the grounding pressure of a shovel edge of a snowplow comprises a lift cylinder(101), a supply line(104), a return line(105), a direction control valve(106), a dual check valve(107), a pressure adjusting return line(110), a pressure adjusting unit, and a controller. The lift cylinder lifts a snowplow installed on a vehicle. The supply and return lines are arranged between the lift cylinder and a tank(102). The direction control valve switches the direction of working fluid supplied from the tank. The dual check valve controls the flow of the working fluid. The pressure adjusting return line is extended from the return line and connected to the supply line. The pressure adjusting unit applies the lifting pressure of the snowplow to the lift cylinder. The controller controls the pressure adjusting unit. |
