摘要
针对在采煤机工作过程中,液压拉杠时常断裂的问题,采用1∶1模拟煤矿井下综采成套装备实验平台。以MG500/1180-WD采煤机为研究对象,通过无线数据传输系统,分别对采煤机空载、重载4种不同工况下液压拉杠的力学特性进行了测试与研究。研究结果表明:不同工况下液压拉杠的载荷均未达到实验前的预紧力;采煤机起车时,位于机身上方两个液压拉杠的载荷趋势较大;在采煤机重载截煤工况下,位于采煤侧上方的液压拉杠处于压缩状态,并且载荷最大。
According to the fracture problems of hydraulic rods in the working processes of shearers,experimental platform for fully mechanized mining face of shearer was established based on parallel simulation of underground coal mine.Taking MG500/1180-WD shearer as the research object,tests and researches of mechanics characteristics of hydraulic rods were executed under no-load and full-load by wireless data transmission system.The results show that the loads of hydraulic rods do not reach the pretest pre-tightening forces under different working conditions.The two hydraulic rods located above the fuselage have larger load when shearer starts.Hydraulic rods located above the shearer side are in compression status and bear the maximum loads.
作者
毛君
杨辛未
陈洪月
宋秋爽
袁智
MAO Jun;YANG Xinwei;CHEN Hongyue;SONG Qiushuang;YUAN Zhi(School of Mechanical Engineering,Liaoning Technical University,Fuxin,Liaoning,123000;China National Coal Association,Dynamic Research for High-end Complete Integrated Coal Mining Equipment and Big Data Analysis Center,Fuxin,Liaoning,123000;Combined Mining Technology and Equipment Engineering National Research Center,Fuxin,Liaoning,123000;China National Coal Mining Equipment Co.,Ltd.,Beijing,100011)
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2018年第20期2446-2452,共7页
China Mechanical Engineering
基金
国家自然科学基金资助项目(51404132)
国家能源研发(实验)中心重大项目(2010_215)
辽宁省教育厅创新团队资助项目(LT2013009)
关键词
采煤机
液压拉杠
力学特性
综采装备力学测试
shearer
hydraulic rod
mechanics characteristics
mechanics test of fully-mechanized mining equipment
