工矿自动化2018，Vol.44Issue(3)：59-65,7.DOI:10.13272/j.issn.1671-251x.2017050022
启动与制动工况下刨煤机系统动力学特性分析
Dynamics characteristics analysis of coal plow system under starting and braking condition
摘要
Abstract
In view of problems of large impact of coal plow system under starting and braking condition,dynamic model of the coal plow system was established comprehensively considering factors of sprocket wheel polygon effect,horizontal vibration of drive sprocket shaft,and coupling characteristics between driving device and plow chain.Dynamic characteristics of the system under condition of starting,braking and reverse starting after braking were analyzed by numerical analysis method,and vibration characteristics curves of the front and rear chain tension were obtained.The analysis results show that the system dynamic characteristic are the most stationary by using reverse "S" start scheme,the method is more advantageous to the coal plow system;the nearer the distance between the plow head and the machine head is,the larger plow chain tension impact is;due to time difference between nose and tail of the machine,tension in the front and back end of the chain has a great impact in the starting process;the plow chain tensions produce difference because of uneven distribution after the coal plow system barking,the plow chain tension of the front end has great impact at the reverse restart moment,and it falls with the starting process.The research results provide theoretical basis for designing reasonable start and brake system of the coal plow.关键词
煤炭开采/刨煤机动力学特性/启动工况/制动工况/刨头/刨链张力Key words
coal mining/dynamics characteristics of coal plow/starting condition/braking condition/plow head/plow chain tension分类
矿业与冶金引用本文复制引用
张瑜,陈洪月,郝志勇,毛君..启动与制动工况下刨煤机系统动力学特性分析[J].工矿自动化,2018,44(3):59-65,7.基金项目
国家自然科学基金项目(51674133). （51674133）
