SCRAPER Russian patent published in 2019 - IPC E02F3/64 

FIELD: machine building.

SUBSTANCE: invention relates to excavating machines. Scraper comprises a base machine, a ladle comprising side walls, a front gate with lifting and lowering hydraulic cylinders, a rear wall and a rear pneumatic axle with a buffer connected to the movable bottom and with telescopic guides on the side walls. Movable bottom is equipped with internal side walls, and rear wall is movable by means of hydraulic cylinders connected to it by rods and casings with buffer. At that, front flap and hydraulic cylinders of its lifting and lowering are hinged on movable carriages equipped with displacement hydraulic cylinders on outer side walls in guides.

EFFECT: higher efficiency due to increased ladle capacity.

1 cl, 2 dwg