Design and optimization of a tea vibrating-shifting machinery

IF 1 4区 工程技术 Q3 ENGINEERING, MULTIDISCIPLINARY
Bing Li, Lixu Fang, Huancheng Zhu, Yagang Zou
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引用次数: 0

Abstract

ABSTRACT Tea screening is a key process in the tea refining and processing industry. However, the tea shakers which are key components in tea screening have low screening efficiencies, and there is a lack of research on the optimization of key factors affecting the same. In this study, a tea vibrating-shifting machine driven by an eccentric wheel-linkage was designed. The force and motion process of tea particles were theoretically analyzed, and the dynamic equation of the tea particles was deduced. For improving the screening efficiency of the tea vibrating-shifting machine, the experimental prototype was optimized with the screening efficiency as the objective function. Additionally, a quadratic orthogonal test of response surface was established using a commercial software. The analysis of variance indicated the following parameters affecting the screening efficiency in decreasing order of influence: vibration direction angle, eccentric wheel angular velocity, and sieve mesh inclination angle. As per the optimization results of regression equation, for a vibration direction angle of 21.68°, the sieve mesh inclination angle was 2.95°, the eccentric wheel angular velocity was 25.24 rad/s, and the maximum screening efficiency was 86.24%.
茶叶振动移位机械的设计与优化
茶叶筛分是茶叶精制加工行业的关键工序。然而,作为茶叶筛分关键部件的摇茶器筛分效率较低,对影响其筛分效率的关键因素的优化研究较少。本文设计了一种偏心轮连杆驱动的茶叶振动移位机。从理论上分析了茶叶颗粒的受力和运动过程,推导了茶叶颗粒的动力学方程。为提高茶叶振动移位机的筛分效率,以筛分效率为目标函数对实验样机进行了优化设计。此外,利用商业软件建立了响应面二次正交试验。方差分析表明,影响筛分效率的参数依次为振动方向角、偏心轮角速度、筛网倾角。根据回归方程的优化结果,当振动方向角为21.68°时,筛网倾角为2.95°,偏心轮角速度为25.24 rad/s,最大筛分效率为86.24%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Journal of the Chinese Institute of Engineers
Journal of the Chinese Institute of Engineers 工程技术-工程:综合
CiteScore
2.30
自引率
9.10%
发文量
57
审稿时长
6.8 months
期刊介绍: Encompassing a wide range of engineering disciplines and industrial applications, JCIE includes the following topics: 1.Chemical engineering 2.Civil engineering 3.Computer engineering 4.Electrical engineering 5.Electronics 6.Mechanical engineering and fields related to the above.
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