机场行李传送车举升机构设计与分析

Design and Analysis of Lifting Mechanism of Airport Conveyer Belt Loader

为提高民航机场行李传送车的工作性能,对其举升机构进行了改进设计,前举升机构采用剪式腿结构,后举升机构采用一组同步伸缩的举升液压缸。先用Creo分别建立改进后的和传统的举升机构的三维模型,再将模型导入到ADAMS中对举升过程进行了分析,并对传统的举升机构和改进后的举升机构分别施加同样的干扰,以对比其抗干扰性能的好坏,最后,用ANSYS分别对改进后的举升机构和传统的举升机构进行了静态强度分析和模态分析。结果表明,改进后的举升机构的抗干扰能力更强,稳定性得到了很大的提高,且结构刚度和强度满足设计要求,避免了因共振对车辆结构产生的损坏。

In order to improve the working performance of the conveyer belt loader of the civil aviation airport,the lifting mechanism is improved.The front lifting mechanism adopts a scissor-type leg structure,and the rear lifting mechanism adopts a set of hydraulic cylinders that maintain synchronous expansion and contraction.Firstly,the 3D models of the improved and traditional lifting mechanisms are created with Creo,and then the models are imported into ADAMS to analyze the lifting process.The same interference is applied to the traditional lifting mechanism and the improved lifting mechanism to compare the anti-interference ability.Finally,the static strength analysis and modal analysis of the improved and traditional lifting mechanisms are performed with ANSYS.The results show that the improved lifting mechanism has stronger anti-interference ability,the stability is greatly improved,the structural stiffness and strength meet the design requirements,and the damage to the vehicle structure due to resonance is avoided.