FIELD: transport.
SUBSTANCE: proposed crane comprises central section, boom assembly and counterweight assembly. Said central section comprises running gear, moving grousers and rotary base mounted on said grousers via rotary joint to allow said rotary base to swing relative to said grousers. Boom assembly comprises support element, at least, one moving grouser and boom arranged to turn on said support element. Counterweight assembly comprises counterweight arranged on support element. Rigging connects said boom and counterweight so that cargo lifted by boom may be balanced by counterweight. Boom and counterweight assemblies are jointed with crane central section by structural elements that carry contracting forces and support boom assembly, rotary base and counterweight assembly in lateral interconnection but allow vertical displacement between boom assembly, rotary base and counterweight assembly. Main mast may turn on combination of central section, boom assembly and structural element between central section and boom assembly.
EFFECT: higher load lifting capacity.
16 cl, 7 dwg
