ArticleScientific reports2026
Development of a telescopic elastic-tooth chili pepper harvester: design and field optimization.
Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
A high damage rate of chili peppers and poor removal of bottom fruits are common problems for current mechanical harvesters. To address these limitations, we designed a self-propelled telescopic elastic-tooth pepper harvester that employs horizontally extending telescopic teeth to reduce the picking angle between the harvesting unit and the ground, thereby improving the net harvesting rate of peppers. The structure and contact mode of the teeth were analyzed, and the feasible range of spindle speed and the key factors affecting picking quality were preliminarily determined through kinematic and contact mechanics analysis. A three-factor, three-level Box-Behnken response surface experiment was conducted using forward speed, spindle speed and telescopic elastic-tooth angle as factors, and picking rate and damage rate as evaluation indices. A quadratic regression model was established and used to optimize the operating parameters with Design-Expert. The optimal combination was a forward speed of 58 m·min⁻
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