Wheel type crane and counter weight device thereof

• Main Authors: HUANG QUANSHENG, ZHANG WEILONG, ZHANG WEIWEI, ZHAO QINGLI
• Format: Patent
• Language: Chinese; English
• Published: 21.05.2014
• Subjects: CRANES; HAULING; HOISTING; LIFTING; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS,WINCHES, OR TACKLES; PERFORMING OPERATIONS; TRANSPORTING

The utility model discloses a wheel type crane and a counter weight device thereof. The counter weight device comprises a fixed counter weight block, a movable counter weight block and at least one counter weight oil cylinder, wherein a cylinder body of the counter weight oil cylinder is fixedly connected onto a rotary table; a piston rod of the counter weight oil cylinder penetrates through the fixed counter weight block and is detachably connected with the movable counter weight block; the counter weight device further comprises at least one set of a fastening mechanism; the fastening mechanism comprises a rotary shaft; the upper end of the rotary shaft is located above the fixed counter weight block and the lower end of the rotary shaft penetrates through the fixed counter weight block and is fixedly connected with the movable counter weight block by a bayonet and a clamping opening which are mated with each other; one of the bayonet and the clamping opening is located in the movable counter weight block a