盾构管片拼装机举升机构优化设计

Optimization design of lifting mechanism of segment erector for shield machine

分析了管片拼装机垂直升降油缸举升机构和平行四边形举升机构的异同,得出采用平行四边形举升机构在空间的布置以及结构性能方面都优于采用垂直升降油缸举升机构。通过对管片拼装机的平行四边形举升机构进行建模分析,并采用MATLAB优化工具箱对平行四边形举升机构进行优化设计,对比优化前后液压油缸受力曲线,得出优化后的液压油缸受力明显小于优化前。

By comparing the 2 types of the segment erector structure,the general lifting mechanism and the parallelogram mechanism,it is found that the parallelogram mechanism is superior to the general lifting mechanism in the spatial arrangement and structural performance.With the modeling analysis of the parallelogram lifting mechanism,the parallelogram lifting mechanism is optimized designed by use of MATLAB optimization toolbox.By comparing the force curves of the hydraulic cylinder before and after optimization,the result shows that the optimized force of hydrocylinder is smaller than that before optimization.