Dynamics optimization and experiment of planting device driven by planetary eccentric gears and elliptic gears

被引：0
|
作者：
Wang Y. [1 ]
Xia X. [2 ]
He X. [2 ]
Zhao X. [2 ]
Chen J. [2 ]
机构：
[1] Faculty of Mechanical Engineering and Mechanics, Ningbo University, Ningbo
[2] College of Mechanical Engineering and Automation, Zhejiang Sci-Tech University, Hangzhou
来源：
Chen, Jianneng (jiannengchen@zstu.edu.cn) | 2017年 / Chinese Society of Agricultural Machinery卷 / 48期
关键词：
Dynamics analysis; Experiment; Optimization; Planetary non-circular gears; Planting device; Seedling transplanter;
D O I：
10.6041/j.issn.1000-1298.2017.01.006
中图分类号：
学科分类号：
摘要：
Planting devices driven by double-stage planetary non-circular gear pairs can meet the requirements of ideal planting better. A total of 25 kinds of planting devices can be obtained by using gear pair composed of elliptic gear and conjugated non-circular gear, eccentric gear and conjugated non-circular gear, Pascal curve non-circular gears, Fourier curve non-circular gears or sinusoidal non-circular gears, which were used to design this type of planting device. To quickly and easily get structural parameters that can make the planting devices meet the requirements of ideal planting, kinematic multi-objective parameter optimization model was established, but the optimization results were a set of Pareto solutions. To obtain the optimal structural parameters, dynamic analysis and optimization should be implemented. So the planting device driven by eccentric gears and elliptic gears, whose first-stage planetary gear pair was composed of eccentric gear and conjugated non-circular gear and second-stage planetary gear pair was composed of elliptic gear and conjugated non-circular gear, was chosen as the research object. Its dynamic analysis model and optimization model were deduced firstly. Then dynamic optimization of this device was implemented and the optimal structural parameters were obtained. During the process of optimization, the constraint conditions were got form its Pareto solutions of kinematic optimization. A test bed for measurement of dynamics characteristics of planting device was manufactured based on the optimal parameters, and the force on the support was tested when the speed was 40 r/min. The comparison between the results of test and theoretical analysis showed that the dynamic analysis model was reliable and it was able to provide reliable mathematical model for dynamic optimization. The research also provided theoretical basis and experiment instructs for other kinds of planting devices driven by double-stage planetary non-circular gear pairs. © 2017, Chinese Society of Agricultural Machinery. All right reserved.
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页码：38 / 46
页数：8
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