Analysis and Prediction of Working Performance of Shearer Spiral Drums under Coal Seam with Gangue

被引：5
|
作者：
Zhao L. [1 ]
Wang Y. [1 ]
Wang B. [1 ]
机构：
[1] College of Mechanical Engineering, Liaoning Technical University, Fuxin, 123000, Liaoning
来源：
Zhongguo Jixie Gongcheng/China Mechanical Engineering | 2021年 / 32卷 / 08期
关键词：
Coal seam with gangue; Discrete element; Genetic algorithm-back propagate(GA-BP); Performance of spiral drum; Reliability; Single factor test method;
D O I：
10.3969/j.issn.1004-132X.2021.08.012
中图分类号：
学科分类号：
摘要：
Based on the interface technology of Pro/E and EDEM, a coupling model of drum and coal seam with gangue was established, and the cutting simulations were carried out. Single factor test method was used to analyze the influence trends of physical and mechanics properties of coal and rock mass, blade spiral angle, pick arrangement, shearer traction speed and drum speed on drum load, load fluctuation, cutting specific energy consumption and coal loading effectiveness. The maximum relative errors of cutting performance and coal loading effectiveness prediction of spiral drum are 3.12% and 3.26% respectively using GA-BP network. The stress magnitude and distribution of spiral drums with different structures under typical working conditions were analyzed based on Workbench, and then the preferred drums under different coal seam occurrence conditions were determined. The simulations using EDEM provide support for the optimization of structural and kinematic parameters of spiral drums under different coal seam occurrence conditions. The performance prediction using GA-BP network provides a more rapid and reliable technical mean for the selection and design of high-efficiency spiral drums. © 2021, China Mechanical Engineering Magazine Office. All right reserved.
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页码：976 / 986
页数：10
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