A hydraulic crane comprising: - a first crane boom (15) pivotable in relation to a column (13) by a first hydraulic cylinder (16); - a second crane boom (17) pivotable in relation to the first crane boom by a second hydraulic cylinder (18); - a first link (24) articulately connected to an upper end of the first hydraulic cylinder by a first joint (J1), to the first crane boom by a second joint (J2) and to an inner end of the second hydraulic cylinder by a third joint (J3); and - a second link (25), which forms a connection between the upper end of the first hydraulic cylinder and the column or between the first link and the column. The first link (24) guides the third joint (J3) in an arcuate path about the second joint (J2) when the first crane boom is pivoted in relation to the column.
HYDRAULIC CRANE
HYDRAULIKKRAN
GRUE HYDRAULIQUE
2019-11-13
Patent
Electronic Resource
English
IPC: | B66C Krane , CRANES |