The invention discloses a large luffing jib tower crane hook multiplying power switching assembly, which comprises a jib, a steel wire rope, a connecting plate assembly, a hook assembly and a switching pin shaft, one end of the jib is rotatably connected with a rope outlet pulley, the steel wire rope is in contact with the rope outlet pulley, one end of the connecting plate assembly is connected with the jib, and the other end of the connecting plate assembly is connected with the steel wire rope; the lifting hook assembly comprises an outer hook, an inner hook and a hook head, the outer hook is provided with a one-multiplying-power fixing hole, a two-multiplying-power fixing hole, a one-multiplying-power limiting piece and a two-multiplying-power limiting piece, the hook head is connected with the outer hook, and the switching pin shaft is connected to the outer hook and used for being matched with the one-multiplying-power fixing hole or the two-multiplying-power fixing hole so as to limit the inner hook. On the premise that the steel wire rope is not disassembled and wound again, the one-to-two-multiplying-power rope penetrating mode of the lifting hook of the movable arm tower crane is switched back and forth, the switching operation is simple and convenient, the switching procedures are greatly reduced, the switching efficiency is improved, and the project construction progress is not influenced while the hoisting performance of the movable arm tower crane is fully exerted.
本发明公开了一种大型动臂塔式起重机吊钩倍率切换组件,组件包括臂架、钢丝绳、连接板组件、吊钩组件和切换销轴,臂架的一端可转动连接有出绳滑轮,钢丝绳与出绳滑轮接触,连接板组件的一端连接臂架,另一端连接钢丝绳,吊钩组件包括外钩、内钩和钩头,外钩上开设有一倍率固定孔和二倍率固定孔,且设置有一倍率限位件和二倍率限位件,钩头与外钩连接,切换销轴连接在外钩上,用于与一倍率固定孔或二倍率固定孔相配合,以对内钩进行限位。本发明在不拆卸和重新穿绕钢丝绳的前提下,完成动臂塔机吊钩一二倍率穿绳方式来回切换,切换操作简便,大大减少切换工序,提高切换效率,在充分发挥动臂塔机吊装性能的同时,不影响项目施工进度。
Large luffing jib tower crane hook multiplying power switching assembly
一种大型动臂塔式起重机吊钩倍率切换组件
2025-03-25
Patent
Electronic Resource
Chinese
IPC: | B66C Krane , CRANES |
Hook multiplying power switching system of small and medium-sized luffing jib tower crane
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