Gear case protection system connected to and pushing auger and arranged in vertical fodder agitating lorry

The invention discloses a gear case protection system connected to and pushing an auger and arranged in a vertical fodder agitating lorry. The gear case protection system comprises an outer pipe and an auger edge plate surrounding around the outer pipe upwards in a spiral mode. A gear case is installed at the bottom end in the outer pipe and connected with the outer pipe through an auger driving shaft. An inner pipe is sleeved with the outer pipe. An oil-retaining bearing is installed on the side surface between the inner pipe and the outer pipe, and a sleeve bearing is arranged above the oil-retaining bearing. The lower end of the inner pipe is fixed to a material box bottom plate of the agitating lorry. A star-shaped bearing is arranged between the inner pipe and the auger driving shaft. According to the gear case protection system, the axial force and the radial force generated in the agitating process can be transmitted to the inner pipe, so that stressing of the gear case is reduced, the service life of