摘要
为了研究刮板输送机复杂工况下链条的力学特性,实现了刮板输送机运行过程中链条随机张力谱的在线监测,采用无线信号收发模块采集并存储检测数据,待试验结束后将数据统一导出并分析。试验结果表明:同一圆环链的两条直边张力出现明显不均等现象;采煤机截煤时,随落煤量增加靠近采煤侧一端链条张力明显大于采空侧链条张力。图像表明链条每经过一次链轮都会产生一次张力阶跃突变,时间间隔为空载运行周期的一半51 s,刮板输送机空载时下端运动阻力为16 k N,链条最大张力值为896 k N。研究结果为链条的设计和优化提供了理论依据。
In order to study the mechanical properties of scraper conveyor chain under complicated conditions, the scraper conveyor chain tension changes during the operation of on-line monitoring was realized, The wireless transceiver module and storage testing data signal, export to stay after the test data and analysis were carried out. Experimental results showed that the same round link chain of two straight tension appeared the obvious unequal phenomenon; Coal winning machine cutting coal, increased near the coal mining is bigger than the lateral side chain tension goaf side chain tension. Image shows that whenever the chain after a sprocket will produce a Zhang Lijie leap mutation, half the no-load operation cycle time interval of 51 s, scraper conveyor motion resistance of 16 kN no-load current end, chain tension value is 896 kN. The results of the study provides theory basis for design and optimization of the chain.
出处
《机械强度》
CAS
CSCD
北大核心
2017年第3期534-539,共6页
Journal of Mechanical Strength
基金
国家自然科学基金项目(51674133
51404135)
国家973计划课题(2014CB046301)
辽宁省教育厅项目(L2015210)资助~~
关键词
刮板输送机
链条
在线监测
张力
Scraper conveyor
Round link chain
On-line monitoring
Tension
