The invention discloses a limiting device for the lifting height of a crane hook. The limiting device comprises a heavy hammer body, a limiting assembly and a sensing device. The upper end of the heavy hammer body is connected to a crane boom head through a steel wire rope assembly, and the lower end is connected with a supporting plate through a limiting assembly. A spring assembly in an elastic state is arranged between the supporting plate and the heavy hammer body, and the elastic force of the spring assembly is larger than the gravity of the supporting plate and smaller than the gravity of the heavy hammer body. Under the action of the limiting assembly, a relative up-and-down movement distance exists between the supporting plate and the heavy hammer body. The sensing device is arranged on the heavy hammer body and used for sensing the relative movement distance of the supporting plate and the heavy hammer body and transmitting a sensing signal to a controller through a terminal antenna, and a controller is used for controlling the action of the crane hook. The limiting device for the lifting height of the crane hook is simple and compact in structure, avoids misoperation caused by weight losses while not influencing normal height limiting of the crane hook, and is safer and more reliable.
本发明公开了一种起重机吊钩起升高度限制装置,包括重锤主体、限位组件和感应装置;重锤主体上端通过钢丝绳总成连接在起重机臂头上、下端通过限位组件与托板连接;托板与重锤主体之间设有处于受弹力状态的弹簧组件,弹簧组件的弹力大于托板的重力、小于重锤主体的重力;在限位组件作用下,托板与重锤主体存在相对上下移动的距离;感应装置设置在重锤主体上,对托板与重锤主体相对移动的距离进行感应,并将感应信号通过终端天线传输至控制器中,控制器控制起重机吊钩的动作。本起重机吊钩起升高度限制装置,结构简单紧凑,在不影响起重机吊钩正常高度限位的同时,避免本装置因失重而发出误动作,更加安全可靠。
Limiting device for lifting height of crane hook
一种起重机吊钩起升高度限制装置
2021-09-07
Patent
Elektronische Ressource
Chinesisch
IPC: | B66C Krane , CRANES |
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