碾搓式橡胶果脱壳试验

摘要

In order to research the change rules of rubber fruit shelling efficiency with the related parameters and determine the optimum conditions of shelling efficiency,a rubber fruit shelling test machine was developed according to the principle of extrusion-grind.By using the single factor and orthogonal tests to analyze the influence rules of shelling rate with different extrusion pressures,friction velocity and material,and the optimal operating parameters of the machine was found.The results were as follows.With the increase of friction velocity,shelling rate firstly increased and then decreased,and it increased linearly with the increase of extrusion pressure.Moreover,it was also found that the shelling rate gradually reduced,when friction material were steel,plastic,wood,rubber.The influence factors of rubber fruit shelling rate from high to low in order were extrusion pressure,friction material,friction velocity.When it worded with extrusion pressure at 700 N,friction speed at 46 mm/s,with steel friction material,the shelling rate reached 81.8％.The results could provide test bases for the whole design of rubber fruit sheller.%为研究橡胶果脱壳效率随相关参数的变化规律,确定最佳脱壳条件,根据碾搓原理研制了橡胶果脱壳试验机.通过单因素试验和正交试验,分析不同的挤压压力、摩擦速度和摩擦材料对脱壳率指标的影响规律及机器的最佳工作参数.结果表明:随着摩擦速度增大,脱壳率先增大后降低;随着挤压压力的增加,脱壳率线性增加;摩擦材料依次取钢板、塑料板、木板、橡胶板时,脱壳率逐渐降低.对橡胶果脱壳率的影响因素从大到小依次为挤压压力、摩擦材料、摩擦速度.当挤压压力为700 N、摩擦速度为46 mm/s、摩擦材料为钢板时,橡胶果的脱壳率达到81.8％.研究结果可为橡胶果脱壳机的整体设计提供试验依据.