激振器上座式单梁筛机械CAD图纸设计.doc

摘要 激振器上座式单梁筛是基于单梁筛的大胆创新。每节筛箱上对称的安装两个激振器，激振器两铀上的偏心质量和偏心距均相等，并且以H梁的垂直轴线为对称，轴线通过筛箱的质心。两轴作同步反向回转时，每一瞬时两轴上偏心质量所产生的离心惯性力沿垂直轴线方向的分力总是相互叠加，这就形成了垂直于轴线方向的简谐力,而沿其他方向的分力总是互相抵消。该简谐力作用在筛箱上，驱动筛箱作轨迹为直线的往复振动。同时筛箱安装有一定角度，使物料有向下移动的趋势，从而达到筛分目的。 设计的主要内容： （1）电动机的计算与选型； （2）激振器的计算选型； （3）主要零部件的结构设计； （4）绘制装配图和部分零部件图； （5）校核主要零件的强度； （6）整理资料，撰写毕业论文。 关键词 激振器；电动机；筛网；H梁；激振器轴 Abstract The vibration exciter seating of honor type of single girder screen is based on single-beam screen innovation.There instal two symmetrical vibrations on each box of the screen, the two uranium eccentric quality and eccentricity of the axia on vibration are equal.Each vibration symmetrize the vertical axis of H girder ,the axis line through the center of screen box.When the two-axis rotate synchronizely , the other along the direction of the effort is always offset each other, and along the vertical axis always help each other in the direction of stacking,this is jian xie li . On the formation of a single vertical axis direction of the harmonic force,the screen box is driving of the straight-line trajectory. At the same time the screen box is installed a certain angle so that the materials are moving downward trend to achieve screening purposes. This design main content includes: (1) The design of the type and cacultion of electric motor; (2) The design of vibration structure and its type; (3) The design of structure and its type of the main parts; (4) Drawing the parts . (5) Check the strength of the main parts; (6)Arrange the information and write the instruction. Keywords vibration electric motor screen H girder vibration exciter axis 目 录 1 绪论 1 1.1 前言 1 1.2振动筛的研究现状 1 1.2.1 国外筛分机械的发展概况 1 1.3 本章小结 6 2 振动原理 7 2.1直线振动筛 7 2.1.1振动筛的分类 7 2.1.2直线振动筛的工作原理 7 2.2 激振器上座式单梁筛的原理及应用 10 2.2.1 简介 10 2.2.2激振器上座式单梁筛的原理 11 2.2.3结构 11 2.2.4 激振器 12 2.2.5 筛网 13 2.2.6优点 14 2.3设计方案确定 15 2.3.1筛箱之间的衔接 15 2.3.2激振器的布置 15 3 物料的运动分析和工艺参数的选择 17 3.1物料的运动分析 17 3.1.1筛面的运动方程 17 3.1.2筛面物料的运动分析 17 3.1.3抛掷指数与跳跃