自动转盘式剥椰塑型机结构设计及分析

Design and Analysis of an Automatic Rotary Coconut Dehusking and Shaping Machine

针对椰青加工领域效率低、危险性高等问题,设计一种自动转盘式剥椰塑型机。该机器工作时通过支撑站和顶杆将椰青夹紧固定,利用电机带动支撑站高速自转和主电机带动转盘切换工位,利用安装在各个工位机架上的切刀对高速自转的椰青进行切割塑型,使椰青表皮在不同工位受到不同方向切刀的剥皮作用,从而达到"粮仓状"椰青塑型目的。使用Solidworks绘制剥椰塑型机的三维结构图并进行实体建模,将模型导入ANSYS Workbench中进行关键部件的工作过程受力分析,获得各关键部件工作中应力和变形的变化规律。分析结果表明,塑型切刀和顶杆在不同载荷下受到的应力和变形趋势相似,载荷越大,应力值和变形趋势相应越大,各工位切刀与顶杆等关键部件材料的选用合理,切刀与顶杆工作受力情况满足剥椰塑型性能要求,可为青椰自动高效剥皮塑型提供一种可行方案。

To improve efficiency and lower risk in the current green coconut processing,an automatic rotating disc type coconut peeling and molding machine is designed.When working,the coconut is clamped and fixed by a support station,and the coconut rotates at a high speed to be cut and molded by a cutter fixed on the frame,so that the coconut skin is peeled by the cutter in different directions at different stations,thereby achieving the molding purpose.Solidworks is used to draw the three-dimensional structure diagram of the whole machine and carry out solid molding,and an analysis model is introduced into the ANSYS Workbench to finite element analysis of the working stress of the key components,so as to obtain the relevant graph of stress and deformation.The cutting force analysis of key components such as cutter and ejector pin also shows that the relevant materials are reasonably selected.The analysis results show that the stress and deformation curves are similar under different loads,and the chip stress analysis results of key components such as cutting tool and jackhammer show that the selection of relevant materials is reasonable.The analysis of maximum stress and deformation position shows that the structural design of the whole machine meets the performance requirements of coconut peeling and molding,and provides a feasible scheme for realizing automatic and efficient coconut peeling and molding.