Design and Experimental Research on the Orientation Planting Device of Electric Strawberry Transplanting Machine

Abstract

To address the agronomic requirements of greenhouse strawberry cultivation involving high-ridge planting, narrow row spacing, close plant spacing, and directional planting, this study developed a deep-planting directional transplanting device featuring a small cavity opening. The device consists of a servo motor-driven screw transmission mechanism for deep planting and a cam-swing-based directional clamping seedling-release mechanism, effectively solving the challenges of achieving sufficient planting depth and maintaining proper orientation during strawberry plug seedling transplantation. Through Box-Behnken experimental design, maintaining average cavity length of 139.3 mm within the qualified range. Furthermore, the optimized configuration achieved a minimal seedling deflection angle of 0.31°, meeting stringent directional planting standards. Field validation tests confirmed the device's superior performance, with planting qualification rates exceeding 90.56% and directional accuracy reaching 91.67%, thereby verifying the scientific validity and practical effectiveness of this electric strawberry transplanter's directional planting system design.