小型红枣风选去杂机的设计

Design on Small Type Jujube Hybrid Winnowing Machine

目前,南疆红枣产区收获后的红枣存在较多的枣叶、土块等田间杂物,农户对小型红枣去杂机的需求较大,为了设计更实用的机型,本文在风选红枣机械的基础上,设计一种适合于南疆收获后红枣的去杂处理机械。通过对样机的正交试验,结果表明:设计完成的小型红枣风选去杂机具有使用方便、作业效率较高,去杂效果好等特点;在设定的正交试验水平范围内,振动筛网倾斜角度与红枣含杂率有显著的相关性,而风选系统风力大小、喂料速度指标对红枣含杂率的影响不显著;试验样机最优的试验参数组合为风速14 m/s、振动筛网倾斜角度为11°、喂料速度为450 kg/h。

Currently, the southern Red jujube areas after harvest dates has more jujube leaf, clod and other sundries field, farmer of small jujube to impurities greater demand, in order to design a more practical models, this paper based on jujube winnowing machine, design a processing mechanical for suitable the harvesting dates in the southern border. Through the orthogonal test, The results show that： to complete the design of small jujube winnowing to miscellaneous machine is convenient and high operating efficiency, to good effect and so on; in setting the level of orthogonal test range, vibration sieve tilt angle and jujube impurity rate have significant correla- tion, and winnowing system wind force, feed rate index jujube containing impurity rate had no significant effect on ; experimental proto- type optimal experimental parameters is that hot wind of 14 m/s, vibration sieve tilt angle to 11° degrees, the feed rate is 450 kg/h.