Abstract

Vertical spindle cotton harvester. Planetary gear. Cotton harvester apparatus. The paper is devoted to the mathematical modeling of the multiloop coulisse mechanism of the spindle drum of the cotton harvester. Justify the multiloop coulisse mechanism as part of the spindle drum of the cotton harvester using calculated data; present the results of mathematical modeling of the kinematic characteristics of the multiloop coulisse mechanism; present the results of computational experiments on constructing phase trajectories of moving characteristic points of the rotating and rolling coulisses of the multiloop mechanism in the Mathcad system. Research methods are based on the type analysis of the kinematic chain of the multiloop coulisse mechanism and on the methods of vector algebra. The calculated data proved that the spindle drum of the cotton harvester is indeed a multiloop coulisse mechanism and consists of two multiloop coulisse chains, each of which consists of twelve loops. The results of mathematical modeling of the kinematic characteristics of the multiloop coulisse mechanism and the results of computational experiments on constructing the phase trajectories of the image points are presented. Based on the use of the obtained analytical formulas, the problem of mathematical modeling of the kinematic characteristics of the multiloop coulisse mechanism was completely solved when the crank was adopted as the leading link. The research results are of interest for the wide practical application of spindle drums with multiloop coulisse mechanisms in the construction of vertical spindle cotton harvesters.

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