SUPPORTING FRAME OF WORKING EQUIPMENT OF HYDRAULIC EXCAVATOR MADE ON WHEELED TRACTOR BASE Russian patent published in 1994 - IPC

FIELD: earth-moving and handling machinery. SUBSTANCE: supporting frame has longitudinal beams, lateral beam and mount with bushings for slewing column and hydraulic control cylinders of column and brackets for outriggers. Mount is made of side plate uprights, side walls, strips and lugs. Uprights are arranged perpendicular to lateral beam and are welded to it and to inner sides of rear ends of longitudinal beams. Each side wall rests by its lower edge on upper side of rear end of longitudinal beam, welded to it and has front and rear parts. Front part of side wall is arranged parallel to upright, and rear part is welded to upright. Each of plate strips is arranged between upright and side wall and welded to upright, side wall and upper side of rear end of longitudinal beam. Plate lugs are located between uprights. Bushings to receive hydraulic control cylinders of column are located in upper and lower lugs. EFFECT: strengthened structure of supporting frame. 7 dwg