BOOM OF LOAD LIFTING MACHINE Russian patent published in 1996 - IPC

FIELD: machines for loading, earth-moving jobs and other jobs, connected both with load lifting and soil development and moving, single ladle loading machines in particular. SUBSTANCE: load lifting machine boom is made of two side-walls fixed to each other by bent to meet each other edges with mounting holes at ends of side-walls, and of lugs to fix boom to base machine. Boom is made of two parts mounted so, that end sections of one part are opposite to end sections with mounting holes of other part and enter one into another. First part is used for fixation to base machine and is made of two jaws. Jaws are fixed in lower part by sheet and have meeting each other bendings in upper and lower parts. Second part is mounted in first part and is made as two L-shaped side-walls connected to each other with formation of U-shaped shape fixed by two sheets. First sheet is fixed along joint with overlapping it and second sheet id fixed to lower side unbent parts of side-walls and its length overlaps sheet of boom first part in place of both parts connection. Lug is fixed to second part of boom. EFFECT: improved design of load lifting machine boom. 3 dwg