Green fodder harvester chopping knife with knife sharpening structure

The invention provides a green feed harvester chopping knife with a knife sharpening structure, which comprises a chopping frame, four fixing rods are fixedly connected to the top of the chopping frame, one ends of the four fixing rods are jointly connected with a knife sharpening frame in a penetrating mode, one ends of the four fixing rods are in threaded connection with adjusting nuts located above the knife sharpening frame, and first springs are arranged between the chopping frame and the knife sharpening frame and arranged on the fixing rods in a sleeving mode. According to the green feed harvester chopping knife with the knife sharpening structure, a knife sharpening grinding wheel can grind chopping blades, so that harvesting and grinding can be carried out at the same time in the green feed harvesting process of the harvester, the harvesting efficiency and quality are improved, and the situation that the chopping effect is affected due to the fact that the knife is blunt is avoided. 本发明提出了一种具有磨刀结构的青饲