HYDRAULIC SHOVEL BACKHOE IMPLEMENT Russian patent published in 2005 - IPC

FIELD: mining and building, particularly soil-shifting machines.

SUBSTANCE: implement comprises articulated boom and telescopically expandable handle having main and auxiliary telescopically sliding parts provided with bucket at outer end thereof. Hydraulic jacks are used to rotate the boom and handle. Device also has hydraulic jack to expand the handle. Auxiliary telescopically sliding part is installed so that it may perform directional reciprocal movement for maximal distance relative rigid guiding means by hydraulic jack. Auxiliary telescopically sliding part of the handle is made as rectangular hollow prism with parallel faces. Rigid guiding means is made as female rectangular prism with parallel faces composed of side and rear surfaces of main handle part and plate secured inside it and extending for length equal to that of auxiliary telescopically sliding part travel. Hydraulic jack of telescopically expandable handle is arranged inside auxiliary telescopically sliding part.

EFFECT: increased operational reliability of the shovel.

3 dwg