HINGE ASSEMBLY OF ALL-WHEEL DRIVE MOTOR GRADER OF HEAVY TYPE Russian patent published in 2024 - IPC E02F3/76 

FIELD: machine building.

SUBSTANCE: invention relates to earth moving machines. Hinge assembly of the all-wheel drive motor grader of heavy type for connection of the centre sill with the frame of the front drive axle contains two coaxially oriented vertical hinges spaced apart along the height, some brackets of each of which are connected to the centre sill, and the other brackets are connected to the frame of the front drive axle. Brackets are made in the form of plates, each two of which, covering the axis of each vertical hinge, are made in the form of crossbars between the vertically arranged plates on the centre sill, and each other, covering the axis of each vertical hinge, is located between the said first plates and is attached to the crossbar on the front drive axle frame. Between the first brackets of the vertical hinges in the area between the vertically arranged plates on the centre sill there is a cavity for accommodating the cardan joint, which is connected by the shaft to the cardan joint of the drive wheel reduction gear of the front drive axle. In the area between the vertically arranged plates on the centre sill under the vertical hinges there is a horizontal hinge fixed in these vertical plates and the axis of rotation of which is transverse to the axis of rotation of the vertical hinges, wherein said horizontal hinge is coupled with vertical hinge used to secure mouldboard blade structure elements thereon.

EFFECT: increasing the operational reliability of the hinged connection of the centre sill with the frame of the front drive axle.

1 cl, 3 dwg