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, mount with bushing sockets and brackets for outriggers. Mount is made of plate framework, bracket and additional lug. Framework is bent to form rear wall and side walls. The latters are arranged at blunt angle to rear wall and are welded to sides of rear ends of longitudinal beams. Bracket is provided with lugs arranged one under another. Base of lower lug is mounted on support ribs of lateral beam and welded to them. Bases of lugs of mount bracket are arranged at inner side of framework and welded to it, and tops are passed through cut-outs in rear wall. Welded to side edges of bases of bracket lugs are vertical plates arranged parallel to side walls and welded to them. Base of additional lug is installed on framework and welded to it. Tops of lugs are provided with bushing sockets for slewing column and hydraulic control cylinders of column. EFFECT: strengthened structure of supporting frame. 6 dwg