| 摘要 |
FIELD: transport.SUBSTANCE: invention relates to hoisting device. Hoisting crane comprises cantilever horizontal boom to support hoisting device secured by one end at movable assy arranged between top and bottom guide beams for lengthwise displacement there over with said boom at carriages. Top and bottom guide beams and carriage are spaced apart in vertical plane. load-bearing elements are composed of a module with connection surfaces whereto articulated are carriage and boom. All loads of the boom are taken up by carriages supporting said module and are arranged to make said loads mutually compensated.EFFECT: optimised fabrication, transportation and assembly.30 cl, 4 dwg |
