國家特色蔬菜產業技術體系專項（CARS -24）; 湖北省自然科學基金項目(2018CFB343)
針對荸薺（Eleocharis dulcis (Burm. f.) Trin. ）外形不規則以及去皮損失大、去不凈的問題，采用平刀去頂芽、斜刀去底部、圓弧刀去側皮的組合切削方式，設計1種荸薺去皮機。通過對荸薺外形參數的測量與建模，擬合得到荸薺外輪廓曲線，確定刀具的結構參數范圍?；?D打印技術，采用單因素試驗，確定了切削速度、底面斜刀傾角與長度、側面圓弧刀弦長對去皮損失率與去凈率的影響，優化得到了適宜的結構參數與運動參數，在轉速為40 r/min、底面斜刀傾角為82°、底面斜刀長度為14 mm、側面圓弧刀弦長為22 mm（直徑42.75 mm）的條件下，去凈率達到93%，損失率為24.4%，顯著高于人工去皮與機械摩擦去皮。
A kind of water chestnut （Eleocharis dulcis (Burm. f.) Trin. ） peeler using the combined cutting method of flat blade to remove top bud,inclined blade to remove bottom,and arc blade to remove lateral peel was designed to solve the problems of the irregular shape,large peeling loss and uncleanness of water chestnut. By measuring and modeling the shape parameters of water chestnut,the outer contour curve of water chestnut was fitted to determine the range of structural parameters of blades. Based on 3D printing technology,the single factor experiment was used to determine the effects of rotary speed,inclination angle and length of the inclined blade,and chord length of the arc blade on loss rate and removal rate of water chestnut. The structural parameters and motion parameters were optimized. The results showed that the removal rate and the loss rate of the peeler designed was 93% and 24.4% when the rotary speed was 40 r/min,the inclination angle and length of the inclined blade were 82° and 14 mm,and chord length of the arc blade was 22 mm(42.75 mm in diameter),significantly higher than that of manual peeling and mechanical friction peeling.