一种四向穿梭车原地90°换向的机构运动分析与设计改进

Kinematic Analysis and Improved Design of a Type of Four-way Shuttle In-situ 90°Reversing Mechanism

针对现有具备原地90°换向功能的四向穿梭车的换向机构复杂、可靠性不高的缺点,深入分析和挖掘了ICAM S.r.l公司专利中公开的穿梭车轮系换向机构及其核心零件——槽轮的设计和运动原理,通过对该形锁合凸轮机构的运动分析、槽轮运动模型建立、数值计算和试验验证,得到较理想的槽轮沟槽轮廓模型。此外,还探讨了该换向机构存在的问题和不足,并提出可行的解决措施,为四向穿梭车的研发和换向机构的设计提供参考、借鉴和指导。

In this paper,in light of the structural complexity and operational unreliability of the reversing mechanism of existing fourway shuttle with in-situ 90°reversing function,we looked in-depth into the design and kinematic principle of the reversing mechanism of the shuttle wheel system disclosed in the patent of ICAM S.r.l and its core component-grooved sheave,and obtained an ideal profile model of the grooved sheave via a kinematic analysis of the form-locking CAM mechanism,establishment of the grooved sheave motion model,and a numerical calculation and experiment verification.In addition,we discussed the problems and deficiencies of such reversing mechanism and proposed some feasible solutions to provide reference and guidance for the research and development of four-way shuttles and suitable reversing mechanisms.