Hinge mechanisms of articulated steering tractor

The utility model discloses a hinge mechanisms of articulated steering tractor, including preceding articulated seat, articulated outer cylinder, articulated assembly and the interior cylinder connected, be provided with go forward hinged ear and down preceding hinged ear on the preceding articulated seat, the front end of articulated outer cylinder is provided with cylinder hinged ear and bottomroll hinged ear, preceding articulated seat is connected the assembly will to go forward hinged ear articulated with last cylinder hinged ear through articulated, hinged ear is articulated with bottomroll hinged ear before will descending, thereby articulated seat is articulated with articulated outer cylinder before also making, interior roller cover goes into in the articulated outer cylinder,the front end and the rear end of interior cylinder are provided with the bush respectively, separate by the bush between interior cylinder and the articulated outer cylinder, interior cylinder frontend is provided with the cyl