铝电解多功能机组正轨箱形主梁的结构分析

Structure Analysis of the Right Box Girder of the Pot Tending Machine

本文介绍了目前铝电解多功能机组广泛采用的箱形主梁结构,主要包括正轨箱形主梁和偏轨箱形主梁,其中正轨箱形梁的两相邻隔板间承受副小车轮压作用,上盖板易产生局部弯曲变形,因而产生较大的局部弯曲应力,直接影响铝电解多功能机组的寿命和安全。针对大吨位出铝的正轨箱形主梁进行了分析,采用了一种较为成熟且符合实际工况的计算方法,给出了正轨主梁上盖板弯曲应力具体计算公式,计算结果对大吨位出铝的铝电解多功能机组的大车桥架主梁设计时轨道型号、箱形梁几何参数、主梁结构的确定起到一定的理论指导作用,具有重要的参考性和可操作性。

This paper introduces the pot tending machine（ PTM ） widely used box girder structure , its mainly includes the right box girder and rail box girder , the right box girder of wheel pressure of trolley between the two adjacent partition function , on the cover plate is easy to generate bending deformation , creating larger local bending stress , directly affect the service life of PTM and security . It analyzed the right box girder for large tonnage , adopted a more mature and conforms to the actual working condition , and given the local bending stress calculation formula on the cover plate of the right box girder , calculation results of large tonnage of PT M of girder design box beam orbit model , selection of geometric parameters ,structure of the girder have certain theoretical guidance , has important reference and operability .