The invention discloses a tower crane lifting hook with a two-rope and four-rope automatic switching function. The lifting hook is characterized in that a walking trolley assembly is mounted on a cargo boom, a horn-shaped guide rod groove provided with a large opening in the lower end and a small opening in the upper end is formed in the center of the walking trolley assembly, and fixed pulleys are arranged at the two ends of the walking trolley assembly; a traction pulley assembly is arranged at the lower end of the walking trolley assembly, a traction pulley is arranged at the center of thetraction pulley assembly, an engaging and disengaging rod is arranged at the top end of the traction pulley assembly, an engaging and disengaging plug-pin is arranged at the top end of the engaging and disengaging rod, a touch switch is arranged at the bottom of the traction pulley assembly, a transmission on/off state connecting line is arranged between the touch switch and the engaging and disengaging plug-pin, and a convex base is further arranged at the bottom end of the traction pulley assembly. The lifting hook has the advantages that automatic switching between two ropes and four ropesof a winch on the cargo boom and lifting ropes on the lifting hook can be realized, lifting time is shortened while the requirement for lifting objects with different tonnages is met, and the workingbenefit of a tower crane is improved.
具备两绳与四绳之间自动变倍的塔吊吊钩,其特征在于:在起重臂上安装有行走小车组件,在所述行走小车组件的中央设置有下端开口大,上端开口小的喇叭形引杆槽,在其两端设置有定滑轮;在所述行走小车组件下端设置牵引滑轮组件,所述牵引滑轮组件的中央设置牵引滑轮,在所述的牵引滑轮组件顶端设置有离合杆,所述的离合杆顶端设置有离合插销,在所述的牵引滑轮组件底部设置有触碰开关,在所述的触碰开关与所述的离合插销之间设置有传输开/关状态连接线,在所述的牵引滑轮组件底端还设置有凸形底座;可以实现起重臂上卷扬机与吊钩上的吊绳在两绳与四绳之间的自动变倍,在满足不同吨位被物体的同时,缩短起吊时间,实现提高塔吊的工作效益的优点。
Tower crane lifting hook with two-rope and four-rope automatic switching function
具备两绳与四绳之间自动变倍的塔吊吊钩
2020-10-16
Patent
Electronic Resource
Chinese
IPC: | B66C Krane , CRANES |
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