采煤机行走部齿轨轮与销轨多角度啮合刚柔耦合特性分析

发布时间：2018-04-18 10:43

本文选题：采煤机 + 齿轨轮　；参考：《辽宁工程技术大学》2015年硕士论文

【摘要】：由于煤矿井下的复杂地形变化,导致在输送机销轨安装过程中必然会出现弯曲,而相邻两节销排间的水平弯曲不得超过±1°,竖直方向的起伏不得超过±3°。针对在许用的弯曲角度下的极限工位,通过多体动力学仿真软件RecurDyn和有限元分析软件对采煤机行走部齿轨轮与销轨的啮合进行联合仿真,得到其刚柔耦合特性曲线。为了得到正确的刚柔耦合特性曲线,本文进行了如下步骤：(1)先对采煤机整机进行了受力分析,得到了行走部的受力情况。(2)通过纯刚体的啮合仿真,得到正确的行走部与销轨啮合运动状态。(3)利用有限元分析方法对齿轨轮的柔性体生成进行网格的精确选择与划分。(4)最后通过RecurDyn对齿轨轮与传动轮及销轨的刚柔耦合模型进行仿真模拟,生成了齿轨轮与各临界角度下的销轨啮合速度、加速度以及啮合力曲线。
[Abstract]:Because of the complex topography change in the coal mine, it is inevitable that there will be bending in the installation process of the conveyor pin rail, but the horizontal bending between the adjacent two pin rows must not exceed 卤1 掳, and the fluctuation in the vertical direction must not exceed 卤3 掳.In view of the limit working position under the allowable bending angle, the joint simulation of the engagement of the gear rail wheel of the traveling part of the shearer with the pin rail is carried out by using the multi-body dynamics simulation software RecurDyn and the finite element analysis software, and the rigid-flexible coupling characteristic curve is obtained.In order to obtain the correct rigid-flexible coupling characteristic curve, the following steps are carried out in this paper: 1) first, the mechanical analysis of the whole shearer is carried out, and the force condition of the walking part is obtained. 2) the meshing simulation of the pure rigid body is carried out.Get the correct meshing motion state of the traveling part and the pin rail. 3) use the finite element analysis method to select and divide the mesh of the flexible body of the gear rail wheel accurately. 4) finally, the rigid and flexible coupling between the tooth rail wheel and the drive wheel and the pin rail is carried out by RecurDyn.The combined model is simulated and simulated.The meshing velocity, acceleration and engagement force curves of the gear rail wheel with each critical angle are obtained.
【学位授予单位】：辽宁工程技术大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TD421.6

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