COLLAPSIBLE CANTILEVER CRANE Russian patent published in 2022 - IPC B66C23/24 

FIELD: construction of bridges.

SUBSTANCE: invention relates to construction of bridges and can be used in assembling collapsible railway bridges, namely, metal flyovers, by the "head first" method on land and in a water stream. The collapsible cantilever crane consists of a base part, a main beam, flexible rods, an undercarriage, a counterweight platform, a counterweight, block and tackle systems, winches, electrical equipment, a power unit, beams, a winch control panel. Spacers are installed between the flanges of the shoes and the base part of the main beam, process equipment is placed on the main beam and the base part, including a support frame, a mobile beam, a crane for installing capstans and pile sections, an additional second block and tackle system, a traverse for rigging the crossbar of the support, a retractable bracket, mounting winches, and cassettes for pile sections.

EFFECT: productivity of the crane is increased.

2 cl, 2 dwg