摘要
采煤机作为煤矿综采的核心设备,其工作能力和稳定性对煤矿开采具有重要影响。在采煤机结构中,截割部齿轮传动是进行动力及扭矩传递的关键。文章针对采煤机截割部齿轮的承载性能,通过有限元仿真方法,建立了截割部齿轮的瞬态动力学分析模型,计算了其在特定工况下的等效应力和弹性应变。分析结果显示,截割部齿轮在啮合齿面处应力最大,但远低于材料屈服极限,显示出良好的承载性能;该位置弹性应变最大,说明齿面易发生变形;齿轮承载能力和稳定性良好,能保障采煤机稳定运行。
As the core equipment in fully mechanized coal mining,the working ability and stability of shearer have an important infl uence on coal mining.In the structure of the shearer,the gear transmission in the cutting unit is the key to the transmission of power and torque.Aiming at the bearing performance of the gear in the shearer cutting unit,the transient dynamic analysis model of the gear in the cutting unit is established by the fi nite element simulation method,and the equivalent stress and elastic strain under specific working conditions are calculated.The analysis results show that the stress of the gear in the cutting unit is the largest at the engagement tooth surface,but it is far lower than the yield limit of the material,showing good bearing performance;and the elastic strain at this position is the largest,indicating that the tooth surface is prone to deformation;the bearing capacity and stability of the gear are good,which can ensure the stable operation of the shearer.
作者
张丽平
ZHANG Liping(Shanxi Coking Coal Group Co.,Ltd.Dongqu Coal Mine,Taiyuan 030200,Shanxi,China)
出处
《凿岩机械气动工具》
2025年第2期121-123,共3页
Rock Drilling Machinery & Pneumatic Tools
关键词
采煤机
截割部齿轮
有限元仿真
等效应力
弹性应变
shearer
gear in the cutting unit
fi nite element simulation
equivalent stress
elastic strain
