高速水稻钵苗移栽机送秧装置设计与试验

为满足高速水稻钵苗移栽机对送秧装置提出的稳定、精准、快速的送秧要求,设计了一种新型送秧装置。此装置减小了移栽机构在取秧过程中秧箱横向移动的距离,提高了高速工作时纵向送秧的精度和稳定性。对新型横向移箱装置和纵向送秧驱动机构的工作原理进行了分析,建立了纵向送秧驱动机构的运动学模型,并通过Matlab软件求得一组可行的设计参数。加工了试验台,并进行了试验验证。结果显示,其横向移箱装置较传统移箱方式,在移栽机构取苗过程中秧箱横向移动距离减少了37%;其纵向送秧单次误差控制在±2 mm以内,且未出现累积误差。研究提出的送秧装置及其设计方法可应用于移栽速度在200~250次/min的高速水稻钵苗移栽机上。

Design and Experiment of Feeding-seedling Device for High-speed Rice Pot-seedling Transplanter

With the aim to realize feeding seedlings stably, accurately and quickly, this paper introduces a feeding-seedling device for the high-speed feeding-seedling device for pot-seedling. This device reduces the moving distance of the seedling box when operating by using a periodic non-uniform lateral shift box. And with the proposed seedling vertical driving device, vertical seedling gains its accuracy and stability as well as high speed. The operational principle of the lateral feeding-seedling device was firstly elaborated, followed by its structure design. Secondly, working principle of the seedling vertical driving device was analyzed and its kinematics model was established. Then a set of feasible parameters was obtained by Matlab and applied in the following device design. Finally, a validation test was carried out. The test result indicates that the seedling box of the proposed lateral feeding-seedling device gains shorter distance when picking seedlings, with a 37% reduction from the traditional one. Moreover, this device achieves error within ±2mm in single feeding and without cumulative error. The proposed feeding-seedling device is able to support pot-seedling speed of 200~250 times/min.