侧臂传动式薄煤层采煤机截割部有限元分析.pdfVIP

学兔兔 机械工程师 M}三CHANlCAt— NG{NEFR 侧臂传动式薄煤层采煤机截割部有限元分析 吴卫东。宋维臣。单长斌 (黑龙江科技大学机械工程学院，哈尔滨 150022) Finite Element Analysis on the Cutting Part of the Side Arm Transmission Thin Coal Seam WU Weidong。 SONG Weichen， SHAN Changbin (School of Mechanical Engineering，Heilongjiang University of Science and Technology，Harbin 150022．China) Abstract：The effect of coal loading can be improved effectively by using thin seam shearer with side arm transmission． but the weight of its cutting part is large，which may damage the support lugs．The three—dimensional model of shearer cutting unit shell iS established by Pro／E software and the finite element simulation analysis is calculated by ANSYS Workbench software，and the stresses and displacements distribution of cutting unit shell are obtained．Through improvi ng its structure．its local strength iS increased effectively．Modal analysis on the cutting unit shell iS completed．the five natui·al frequenc,ies and vibration state of the shell are obtained．and the fatigue zone is shown．It provides the basis for the vibration characteristics analysis，structure design and improvement of coal mining machine cutting unit． Key words：side arm transmission；thin seam；shearer cutting unit；finite element analysis 0 引 言 总储量的20％左右，为60多亿tJ一。截割部作为采煤机重 我 的煤炭的总储量丰富，并且煤炭的存在条件复 要的组成部分，采煤机滚筒受到的力直接作用在截割部 杂多样，其中nr以开采的薄煤层煤炭储量约占全国煤炭 壳体上，因此对其进行合理的结构设计，提高其可靠性是 基金项目：黑龙江省自然科学基金项目(E201 I19)；黑龙江科技大 非常必要的，多年来众多学者在该方面进行了大量的研