The invention belongs to the field of hoisting, and particularly relates to a cross beam lifting appliance. The cross beam lifting appliance comprises a cross beam, shafts A, volute spiral springs A,winding wheels A, steel wires A, a lifting block, a lifting ring, a winding wheel B, a steel wire B, a U-shaped sliding seat, a winding wheel C, a volute spiral spring B, a steel wire C, a fixed pulley, a winding wheel D, a steel wire D and a hook, wherein the two ends in the cross beam are symmetrically and rotationally matched with the two shafts A, and the volute spiral springs A for rotating and resetting the shafts A are arranged between the shafts A and the cross beam. When the steel wire A on one side is broken, the winding wheel A where the steel wire A which is not broken is located drives the U-shaped sliding seat to rapidly slide towards one side of the broken steel wire A through a series of transmission, the U-shaped sliding seat drives the end, which is wound on the winding wheel C, of the steel wire C to rapidly move to the broken steel wire A and effectively supplement the broken steel wire A, so that the cross beam rapidly recovers the horizontal state in an extremelyshort time after the steel wire A on one side is accidentally broken, and effective hoisting of a hoisted object is kept.
本发明属于吊装领域,尤其涉及一种横梁吊具,它包括横梁、轴A、涡卷弹簧A、缠绕轮A、钢丝A、吊块、吊环、缠绕轮B、钢丝B、U型滑座、缠绕轮C、涡卷弹簧B、钢丝C、定滑轮、缠绕轮D、钢丝D、挂钩,其中横梁内两端对称地旋转配合有两个轴A,轴A与横梁之间安装有对轴A旋转复位的涡卷弹簧A;当本发明中的一侧钢丝A发生断裂时,未断裂的钢丝A所在的缠绕轮A通过一系列传动带动U型滑座向已断裂的钢丝A一侧快速滑动,U型滑座带动钢丝C缠绕于缠绕轮C上的一端快速运动至已断裂钢丝A处并对已断裂的钢丝A形成有效补充,使得横梁在单侧钢丝A意外断裂后的极短时间快速恢复其水平状态并保持对所吊物体的有效吊装。
Cross beam lifting appliance
一种横梁吊具
2020-09-25
Patent
Elektronische Ressource
Chinesisch
IPC: | B66C Krane , CRANES |
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