翻转启闭机构设计与优化研究

Research on Design and Optimization of a Perpendicular Inside Out Opening Mechanism

为了满足压力罐密闭门可靠开启、启闭角度足够大、自动开闭锁等要求,采用机构功能时序组合、空间多连杆连续耦合作动的设计思想,开发了一种可变回转点的空间多连杆快速作动翻转机构,构建了参数化机构动力学模型,以开启角度、启闭机构体积、最大驱动载荷为优化目标进行了机构铰点多目标优化,运用Max-min准则从多目标优化所得Pareto解集中选出了折中方案。通过动力学数值计算、缩比试验和产品试验验证了该设计和优化方法的可行性,为翻转启闭系统的机构设计提供了一定的参考。

In allusion to the technique requirements such as reliably open,enough and greatly open-angle,automatically open or lock for the pressure tank,a method using function cycle time combination,and spatial multi-link coupled actuating strategy is proposed to develop a spatial multi-link Mechanism with a variable revolution axis to ensure of perpendicular inside out opening rapidly.A parametric dynamic model is established,the opening angle,horizontal size of the opening mechanism,and erecting cylinder load are used as outputs,and the Hinge-point parameters of the links are taken as inputs.Nondominated sorting genetic algorithm is used to solve the multiobjective problem and the max-min criterion is adopted to select a solution from the Pareto front.The optimized effect is compared with the results of ADMAS dynamic simulation,scale experiment and product experiment tests.The result shows that the proposed method provided a certain reference for optimization of perpendicular inside out opening mechanism.