新型多层叠压式升降作业平台车的设计与研究

Design and research on new multi-layer overlying lifting operation platform cart

针对传统升降平台稳定性差、平台作业面积小及作业效率低的问题,提出一种举升机构对称布置的多层叠压式新型升降作业平台车的设计理念。在动力学分析软件ADAMS中对举升机构进行动力学仿真,对结果进行分析,获得了设计平台的运动学特性及液压缸受力变化情况,为液压缸驱动选型及控制提供了理论依据。对整机进行稳定性计算分析,表明其抗倾覆性良好。制作了缩小比例的物理样机并进行了举升试验,试验结果表明,该设计方案具有结构紧凑、稳定性好及作业效率高等性能优势。

Aiming at the problem of traditional lifting platform in worse stability, small-area of platform, and low operation efficiency, the design theory of new-type multi-layer overlying lifting operation platform car which is symmetrical arrangement of lifting mechanisms is put farward in the paper. The dynamic simulation is performed for the lifting mechanism in the ADAMS dynamic analysis software, with further analysis for the results, in order to figure out the dynamic property of design platform and stress changes of the hydraulic cylinder, hence to provide theory basis for selection and control of the drive of hydraulic cylinders. The stability calculation analysis is performed for the whole crane, indicating excellent anti-overturn. The physical prototype in reduced scale is made to perform the lifting test, which shows that the design scheme is provided with compact structure, good stability, high efficiency, and other performance advantages.