论文部分内容阅读
以SL750采煤机为研究对象,针对其机身结构载荷分布情况,建立SL750采煤机机身受力模型,通过Ansys有限元方法计算采煤机机身变形量及应力分布情况,拟合采煤机工作状态下机身变形量曲线及等效应力分布云图,对比分析机身组成结构及工况下应力及应变分布,分析数据显示:SL750采煤机机身结构设计合理,工况下具有较好的刚度和强度,最大变形量约为2.21 mm,出现在牵引部泵站腔体侧壁;最大应力约为208 MPa,出现在前牵引部联接支撑腿的根部。此计算结果对于国内中厚煤层大功率采煤机研发具有一定的参考价值。
Taking the SL750 shearer as the research object, according to the load distribution of the fuselage structure, the stress model of the SL750 shearer fuselage is established. The deformation and stress distribution of the shearer fuselage are calculated by the Ansys finite element method. Coal machine under the state of the body deformation curve and the equivalent stress distribution cloud, comparative analysis of body structure and stress and strain distribution under conditions, analysis of data show: SL750 Shearer fuselage structural design is reasonable, under conditions with Good stiffness and strength, the maximum deformation of about 2.21 mm, appeared in the pumping unit cavity wall; the maximum stress of about 208 MPa, appeared in the front traction unit connected to the support leg roots. The result of this calculation is of certain reference value for the research and development of high power coal shearer in the medium and thick coal seams.