The invention discloses a hoisting device of a crane. The hoisting device comprises a main jib of the crane and a trolley arranged on the main jib, wherein the trolley is connected with a workbench through a telescopic arm, and a rotary platform is arranged below the workbench and is driven through a hydraulic motor; the joints of first and second swinging arms are arranged below the rotary platform; each section of swinging arm is driven through a hydraulic motor; a mechanical arm is arranged on the lowest swinging arm. The hoisting device is capable of completing hoisting operation at occasions with narrow space and hazardousness and under condition that a work piece self has dangerous situation; as no auxiliary operator is needed, the labor cost is saved.
Hoisting device of crane
2015-09-16
Patent
Electronic Resource
English
IPC: | B66C Krane , CRANES |
Crane beam hoisting device, hoisting structure and hoisting method
European Patent Office | 2022
|