The invention discloses a hoisting safety protection method and device of a crane and the crane. The hoisting safety protection method and device can improve the hoisting follow-up safety. The safety protection method for the crane winch comprises the steps that the first length of a steel wire rope wound on the winch is obtained when a lifting hook is located at a preset height limiting position; according to the first length, the second length of the steel wire rope wound on the winch in the working state and the state of the cargo boom, the sagging height of the lifting hook is calculated; and when the drooping height is smaller than or equal to a preset height value, the winch is controlled to stop.
本申请公开了一种起重机卷扬安全保护方法、装置及起重机,可以提高卷扬随动时的安全性。其中,起重机卷扬安全保护方法包括:获取吊钩位于预设的高度限位位置时,卷扬上缠绕的钢丝绳的第一长度;根据所述第一长度、工作状态下卷扬上缠绕的钢丝绳的第二长度以及起重臂状态,计算吊钩的下垂高度;当所述下垂高度小于或等于预设高度值时,控制所述卷扬停止。
Crane winch safety protection method and device and crane
一种起重机卷扬安全保护方法、装置及起重机
2024-04-26
Patent
Electronic Resource
Chinese
IPC: | B66C Krane , CRANES |
Crane winch protection device, crane and crane winch protection method
European Patent Office | 2020
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