| 采煤机截割部电机扭矩轴断裂可靠性分析 |
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| 引用本文： | 李明昊,乔捷,范佳艺,赵丽娟.采煤机截割部电机扭矩轴断裂可靠性分析[J].煤矿机械,2021,42(1):76-79. |
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| 作者姓名： | 李明昊 乔捷 范佳艺 赵丽娟 |
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| 作者单位： | 沈阳理工大学机械工程学院,沈阳110159;沈阳航空航天大学机电工程学院,辽宁110136;辽宁工程技术大学机械工程学院,辽宁阜新123000 |
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| 基金项目： | 国家自然科学基金(51674134);辽宁省教育厅青年科技人才育苗项目(LG202029);沈阳理工大学引进高层次人才科研支持经费(1050002000606)。 |
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| 摘 要： | 扭矩轴是联接电机和传动系统的关键零件,采煤机受载过大时,扭矩轴在卸荷槽处折断以保护采煤机截割部。结合采煤机工况,利用ADAMS和ANSYS对扭矩轴进行分析,得到了扭矩轴最大剪切应力值、时刻和位置。基于刚柔耦合仿真结果,分析得到了扭矩轴Ⅰ型、Ⅱ型和Ⅲ型应力强度因子。基于可靠性理论,构建以应力强度因子-材料断裂韧度干涉公式,得到扭矩轴的断裂可靠度和断裂疲劳寿命可靠度。
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| 关 键 词： | 采煤机 刚柔耦合 扭矩轴 断裂力学 可靠性 |
Fracture Reliability Analysis of Torque Shaft of Shearer Cutting Part |
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| Li Minghao,Qiao Jie,Fan Jiayi,Zhao Lijuan.Fracture Reliability Analysis of Torque Shaft of Shearer Cutting Part[J].Coal Mine Machinery,2021,42(1):76-79. |
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| Authors: | Li Minghao Qiao Jie Fan Jiayi Zhao Lijuan |
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| Affiliation: | (School of Mechanical Engineering,Shenyang Ligong University,Shenyang 110159,China;School of Mechatronics Engineering,Shenyang Aerospace University,Shenyang 110136,China;College of Mechanical Engineering,Liaoning Technical University,Fuxin 123000.China) |
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| Abstract: | The torque shaft was the key part connecting the motor and the transmission system. When the shearer was overloaded,the torque shaft was broken at the unloading chute to protect the shearer cutting department. Combined with the working condition of shearer, ADAMS and ANSYS were used to analyze torque shaft,and the maximum shear stress value, moment and position of torque shaft were obtained. Based on analysis of the coupled simulation results, the torque shaft Ⅰ, Ⅱ and Ⅲ stress intensity factor were obtained. Based on the reliability theory,the stress intensity factor-material fracture toughness interference formula was constructed to obtain the fracture reliability and fracture fatigue life reliability of the torque shaft. |
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| Keywords: | shearer rigid-flexible coupling torque shaft fracture mechanics reliability |
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