Abstract: This article takes a certain feeding mechanism as the research object, determines the most dangerous posture through multi-body dynamics simulation calculation, and completes the oil cylinder load verification. By establishing a finite element simulation model, conducting simulation calculations and evaluating results, the reliability assessment of the feeding mechanism is completed. According to the simulation results, it has been optimized and improved in design, achieving a weight reduction of 30 kg, and the reduction rate is 30%. This method can be widely applied to the reliability evaluation and structural optimization of the feeding mechanism of compressed garbage trucks, solving the problem of difficult reliability evaluation and optimization in the development of feeding mechanisms.

Key words: compressed garbage trucks; feeding mechanism; finite element analysis

摘要： 文章以某款上料机构为研究对象，通过多体动力学仿真计算确定了最危险姿态，完成 了油缸载荷校核。通过建立有限元仿真模型进行仿真计算和结果评估，完成了对上料机构可 靠性的评估。根据仿真结果对其进行了优化改进设计，实现降重 30 kg，降幅 30%。该方法可 广泛应用于压缩式垃圾车上料机构的可靠性评估和结构优化中，解决了上料机构开发中可靠 性评估难和优化难的问题。

关键词: 压缩式垃圾车；上料机构；有限元分析