摘要
分析煤岩界面识别技术发展的现状,提出一种利用采煤机滚筒截割振动信号来进行煤岩界面辅助识别的方法。对采煤机的滚筒进行受力分析,建立摇臂截割振动模型,通过理论分析验证该方法的可行性;设计采煤机模拟截割振动测试试验装置,并利用该装置截割2种不同性质材料,验证振动信号应用于煤岩识别的可行性;理论分析及试验结果表明振动信号可以应用于煤岩界面的辅助识别,并通过对试验结果分析给出试验与实际工况可能存在的差异,提出一种改进的建议。
The paper analyzed the development status of the coal-rock interface recognition technology and a coal-rock interface auxiliary recognition method with the cutting vibration signals of the coal shearer drums was provided.A stress analysis was conducted on the cutting drum of the coal shearer.A cutting vibration model of the ranging arm was established.The feasibility of the method was obtained from the theoretical analysis.A simulated cutting vibration test experiment device of the coal shearer was designed, two differentproperty materials were cut by the device and the feasibility of the vibration signals applied to coal-rock interface recognition was verified.The theoretical analysis and the experiment results showed that the vibration signals could be applied to the coal-rock interface auxiliary recognition.The analysis on the experiment results showed that there was difference between the experiment and the real performances possibly and im- proved proposal was provided.
出处
《煤炭科学技术》
CAS
北大核心
2013年第10期93-95,116,共4页
Coal Science and Technology
基金
国家自然科学基金资助项目(51205112)
河南省科技攻关资助项目(112102210105)
国家测绘局重点实验室开放基金资助项目(KLM201106)
关键词
煤岩识别
采煤机
振动信号
振动模型
coal-rock interface recognition
coal shearer
vibration signal
vibration model
