Large arm convenient to overhaul for crawler crane

• Main Authors: GONG HAIHUI, XIE SHUXIAN, LIAO YANQING, XIE XIANG
• Format: Patent
• Language: Chinese; English
• Published: 25.01.2022
• Subjects: CRANES; HAULING; HOISTING; LIFTING; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS,WINCHES, OR TACKLES; PERFORMING OPERATIONS; TRANSPORTING

The utility model provides a big arm convenient to overhaul for a crawler crane, which belongs to the technical field of big arms, and comprises a cargo boom, a climbing ladder, anti-skidding sleeves and connecting devices, the surface of the cargo boom is movably connected with the climbing ladder, the surface of the climbing ladder is sleeved with a plurality of anti-skidding sleeves, and the surfaces of the cargo boom and the climbing ladder are provided with four connecting devices. The four connecting devices are evenly distributed at the four corners of the climbing ladder, each connecting device comprises a supporting block, the side wall of each supporting block and the side wall of the cargo boom are fixedly installed, two fixing devices are arranged on the surface of the anti-skid sleeve and the surface of the climbing ladder, the two fixing devices are symmetrically distributed about the center point of the anti-skid sleeve, and each fixing device comprises a protruding block. The bottom ends of th