Lift frame for large tub grinders
AssigneeDuratech Industries International, Inc.
InventorsAaron J. Johnson, Dennis Mecklenburg
Life of this patent
Estimating the term…
Abstract
A large industrial waste tub grinder is mounted onto a lift or support frame that has a connection for a hook from a hoist on a truck so that the lift or support frame can be placed onto the truck and offloaded from the truck utilizing a conventional hook hoist. The lift or support frame supports the tub grinder on the ground surface, for in place use, the lift or support frame carries stabilizers for insuring that the lift or support frame provides a stable mounting for the tub grinder.
Claims11
A lift frame and tub grinder combination comprising a tub grinder having a grinder frame, a grinder cylinder and conveyor below a tub on the tub grinder and extending below the grinder frame, a power unit on the grinder frame for powering the tub grinder, the lift frame used in combination with a hoist mounted on a hauling truck, the hoist being movable between an extended offloading position and a retracted transport position to move the lift frame into overlying relation with the truck for subsequent transport, the lift frame comprising an elongated frame having a pair of spaced apart rails extending between opposite ends of the frame:
- an upstanding arm at one end of the lift frame, and adapted for releasable engagement with the hoist whereby operation of the hoist causes the frame to drawn onto the truck;
- cross bars for holding the spaced apart rails in an assembly, said lift frame having spaced, longitudinally extending support members for engaging lower portions of the grinder frame of the tub grinder with the grinding cylinder and conveyor between the support members and at a height above the rails, whereby the tub grinder and lift frame can be moved onto the truck and offloaded from the truck by operation of the hoist, and the tub grinder being operable when mounted on the lift frame.
A tub grinder and lift frame combination comprising a tub grinder having an open top tub for receiving materials to be ground, and a rotating grinding cylinder for grinding the material, comprising a separate lift frame supporting the tub grinder relative to a supporting surface, said lift frame having a pair of substantially parallel longitudinally extending rails, a support structure mounted on the rails supporting the tub grinder at a height sufficient to provide clearance for tub grinder components relative to a support surface, and an upright frame at a forward end of the lift frame, said upright frame having a connector for attaching to a hoist on a truck, such that a lifting load applied to the upright frame will lift the forward end of the lift frame and tub grinder as a unit, for permitting movement of the lift frame and tub grinder onto a truck having the hoist.
Dependencies are inferred from the claim text.