SUSPENSION OF MOTOR GRADER DRAFT FRAME Russian patent published in 1999 - IPC

FIELD: road-building machinery and equipment. SUBSTANCE: suspension relates to motor graders provided with hydraulic operation of draft frame with mouldboard. Suspension of motor grader draft frame incorporates hydraulic cylinders for control of working member positioning. It includes bracket which carries hydraulic cylinders to control positioning of working member. Bracket can be turned relative to motor grader frame by means of separate hydraulic cylinder. Bracket turning axle is located above and to right side with respect to location of center of gravity of main girder of motor grader frame. Application of aforesaid embodiment of motor grader draft frame suspension simplifies control and widens operating potentialities. EFFECT: higher efficiency. 5 dwg