新结构电动单梁起重机的设计

Design of new electric single girder overhead travelling crane

提供一种生产工艺简单、自重轻的主梁截面 ,并将单梁起重机主、端梁的刚性连接改为一端用铰接连接 ,解决了在制造和轨道安装时因误差而造成的大车运行三条腿现象 ,提高了运行性能 ;用可调大车运行水平轮中心距的设计 ,代替带轮缘的大车轮 。

The main shuchural features of the new electric single girder overhead travelling crane presented in this paper is as follows:Using a special girder section to provide simple production technology and light weight;dopting hinged connection at one end between main girders and end carrages instead of the rigid connection at both ends,eliminating the three point supporting problem with the crane and thus improving the travelling perfomance;extending crane wheels′ life contributed to the combination of no flange crane wheels and horizontal rollers.