The Research On Method And Test Of Cracking Walnut And Fetching Kernel

Municipality government projects to plant walnut-tree 4 ten thousand hectare before 2005．Product is estimated to 12 ten thousand ton a year．It is not feasible to increase our earnings only through selling origin material．Agriculture industrialization and products reprocess are advocated to enhance peasant's earnings．Because cracking walnut and fetching kernel is the first step,we must put it in the first place．Up to now,cracking walnut and fetching kernel mostly relies on hand．To realize mechanization of cracking walnut,the paper has thoroughly researched on method of cracking walnut and fetching kernel．First,It analyzes cracking principle of walnut making use of theory of thin-shell and theory of dynamic crack extend．Test verifies the validity of the cracking principle and selects appropriate parameter; second, It analyzes movement of walnut and force suffered in roller. Test about classification has been done, it assesses the effect of the bar pattern classification mechanization; third, we have designed direction guided orientation equipment and have made positive mutual test. Proper parameters of the orientation equipment are selected; At last, Test investigation is given about how to separate shell and kernel, it also expatiates probability of separation of shell and kernel.