The present invention relates to motor graders and, more particularly, to a motor grader drawbar assembly having a safety clutch mechanism associated with the drive apparatus. It is the general object of the present invention to provide a motor grader drawbar assembly which overcomes the problem of breakage on high impact on the blade.

A drawbar assembly, generally designated 20 in FIG. 2, includes a Y-shaped drawbar frame 22 having a ball 24 at its forward end for pivotal connection to the motor grader 10. The other end of the drawbar structure 20 is mounted on the arched portion of the frame 11 by appropriate control devices such as hydraulic motors adapted to enable the ...

A motor grader generally employs a drawbar assembly installed on a main frame of the motor grader. The drawbar assembly supports a blade, which performs earth levelling during normal operation of the motor grader. Typically, the drawbar assembly includes a yoke plate, a backbar, and a pair of drawbar tubes.

CASE motor graders feature an exclusive A-frame drawbar that provides outstanding stability under load due to its heavy-duty boxed frame design. And the roller-mounted, encapsulated circle is designed with internal gearing, minimizing wear and prolonging the life of its components.

Replacing the draw bar bearing on the 14G motor grader and plowing the county road.Some naughty language @ 6:18 from a distraught

With operating weights ranging from less than 35,000 pounds (15,875 kilograms) to more than 150,000 pounds (68,038 kilograms), motor graders consist of a cab, a moldboard (or blade), a circle drive, a drawbar, and other components that collectively work to help operators maintain existing gravel and dirt roads and provide flat, even surface ...

The powerful and durable design of the circle, moldboard and drawbar system allows the operator to place and maintain the blade exactly where it's needed.

A motor grader is provided with an adjustable drawbar and circle support assembly. The assembly includes a circle support for mounting a moldboard or blade for rotation about an upright axis, and an extensible and retractable drawbar having one end associated with the circle support and another end adapted for pivotal connection to the main frame of the motor grader.

Motor grader drawbar assembly with safety clutch mechanism US4031967A (en) * : : Tractor Co. Motor grader with spherical bearing mounting for blade tilt cylinders US4060136A (en) * : : Tractor Co. Motor grader blade mounting and tilt …

the motor grader can be put is usually limited only by the operator's skill and experience. Motor graders work in a wide range of applications, from close tolerance ... will generally position the drawbar parallel to the finished grade. When the drawbar is parallel to the …

MOTOR GRADER STEPS FOR SPREADING. Move the back frame toward the heel of the moldboard 15 to 18 degrees. Shift the circle, drawbar and moldboard toward the piles with the moldboard at a 30- to 40-degree blade angle. Keep the front wheels on a smooth surface, and cut out a …

A motor grader is provided with an adjustable drawbar and circle support assembly. The assembly includes a circle support for mounting a moldboard or blade for rotation about an upright axis, and an extensible and retractable drawbar having one end associated with the circle support and another end adapted for pivotal connection to the main frame of the motor grader.

Circle and drawbar assembly for a motor grader. United States Patent 5667020. Abstract: A blade assembly of a motor grader includes a drawbar frame adapted for mounting to the motor grader and a circle frame adapted for mounting a blade thereto. A number of shoe assemblies are mounted to the drawbar frame in a circular array and support the ...

Motor Grader NA Version. 2 3 ... Drawbar, Circle & Moldboard The blade linkage design maximizes moldboard positioning. A long wheel base allows the operator to obtain a more aggressive moldboard angle for better material movement. The rugged construction of the drawbar, circle and

A motor grader can include two or more axles, with an engine and cab disposed above the axles at the rear end of the vehicle. A blade is attached to the vehicle between the front axle and the rear axle. Motor graders include a circle drawbar assembly attached near the nose of the grader which is pulled by the grader as it moves forward.

A motor grader can include two or more axles, with an engine and cab disposed above the axles at the rear end of the vehicle. A blade is attached to the vehicle between the front axle and the rear axle. Motor graders include a circle drawbar assembly attached near the nose of the grader which is pulled by the grader as it moves forward.