Design and braking calculation of traveling device of gantry crane
Tao Ren, Yifeng Han, Xu Chai, Kai Xu, Jiangming Jia · 2021
Gantry crane is an important part of the hydropower plant equipment, undertaking the task of opening and closing the dam gates. At present, the operation of the gantry crane is mainly controlled manually by the ground commanders who rely on visual inspection to direct the driver, and the positioning accuracy and efficiency are low. To address the problems, this paper is based on RFID technology to design the automatic walking positioning system of the gantry crane, analyze the braking process of the hoist carriage walking mechanism, calculate the braking distance and braking time of the carriage walking mechanism under different braking conditions, and obtain the relationship between the braking distance S and the braking time x of the walking mechanism under normal braking conditions, as well as the dynamics of the braking distance S during emergency braking. equation.