WORKING EQUIPMENT OF SINGLE-BUCKET EXCAVATOR Russian patent published in 2009 - IPC E02F3/39 

FIELD: mining.

SUBSTANCE: invention refers to mining and building, particularly to working equipment of single-bucket excavators. The working equipment of a single-bucket excavator consists of a shovel boom, pivotally connected with a telescopic arm in the cavity of which a hydro-cylinder is installed; the hydro-cylinder facilitates transferring the interior part of the telescopic arm against its exterior part. A hydro-cylinder is pivotally secured on the telescopic arm for bucket swinging; a piston rod of the hydro-cylinder is jointed with the swing lever hinged on the arm; the swing lever in its turn is hinged with a bar connected with the bucket via a system of levers. There are made apertures on the bar; the apertures regulate position of the lever system at various out-ins of the arm.

EFFECT: simplification of the design of bucket swinging mechanism and also reduced operational costs and upgraded reliability.

2 dwg