DEVICE FOR LIFTING DUMP-TRUCKS TO OPENCAST FLANK Russian patent published in 2006 - IPC B66B15/00 B66B9/06 B65G17/06 E21C47/00 

FIELD: quarry vehicles.

SUBSTANCE: invention relates to devices for lifting and lowering dump-trucks at opencast mining. Device is provided with dump-truck lowering line parallel to lifting line with drive sprockets in head and middle parts of both lines for mechanical engagement of said lines. Each gripping and up and down transporting device for dump-trucks is made ion form of twin levers with rollers of free ends hinge-connected to two leaf and-roller chains and arranged between said chains for turning twin levers in vertical plane and shifting rollers along guides arranged under guides for running rollers of traction chains. Twin levers are interconnected by platform for front wheels of dump-truck. Said platform are arranged with clearances over tracks, each being provided with curvilinear stop from side of tension sprockets on lifting line for engagement with front wheels of dump-truck and with two stops on lowering line for arranged of front wheels of dump-truck between said stops. Lips are made in quarry and on its flank in zones of entry of dump trucks on lifting and lowering lines over tension and drive sprockets. Guides for traction chains and lever rollers are made curvilinear to provide free getting of dump-trucks on track. Mechanical couplings of drive sprockets of both lines are made in form of reduction gear and toothed pair coupled with electric motor.

EFFECT: provision of lifting of loaded dump-trucks from quarry to opencast flank with simultaneous lowering of empty dump-trucks into quarry at continuous transportation, brought to minimum consumption of metal and energy at carrying out said operations.

3 cl, 6 dwg