矿山机械课程设计.docVIP

综 合 机 械 采 煤 工 作 面 配套机械选型设计 班级：采矿…..班 姓名：….. 学号:……………. 目 录 第一章 概述·················································2 一、设计题目、任务和要求、设计条件·······················2 二、选型的基本原则·······································2 第二章 采煤机的选型··········································3 一、初选采煤机···········································3 二、采煤机的基本参数·····································4 三、确定采煤机型号·······································8 第三章 液压支架的选型········································9 一、确定架型··············································9 二、主要参数计算和支架型号确定···························10 三、支架布置台数·········································14 第四章 刮板运输机选型·······································15 一、运输能力············································15 二、电动机功率·········································15 三、刮板链强度·········································16 四、确定刮板输送机型号··································17 第五章 转载机及胶带输送机的选型····························17 一、转载机选型··········································17 二、胶带运输机选型·····································18 第六章 配套验算············································19 一、生产能力配套·········································19 二、设备的空间尺寸配套关系······························19 三、综采工作面布置图····································20 第七章 课程设计总结及感想··································22 参考文献····················································23 第一章 概述 一、设计题目、设计条件、任务和要求 1、设计题目及设计条件 （1）综采工作面配套机械选型 （2）设计条件：工作面长度150米；倾角15°；煤层平均厚度2.5米；顶板中等稳定；截割阻抗A=230N／mm；煤层的普式系数f=4。 2、任务和要求 （1）确定采煤机、刮板运输机、液压支架的型号和参数的验算。 （2）各设备匹配尺寸和参数的验算，完成一张综采设备之间的配套尺寸关系平面布置图。 二、选型的基本原则 1、采煤机 （1）采煤机必须满足煤层开采厚度和煤的切割阻力的需要，要与煤层的倾角向适应。 （2）采煤机以最小的电耗获得最大的采煤速度即生产能力，以获得最大的块度。 （3）要考虑与支架和运输机配套，与支架移置速度和运输机运煤能力适应。 （4）具有内外喷污灭尘装置以及防滑装置。 （5）机身所占空间较小，对薄煤层开采尤为重要。 2、运输机 （1）要满足工作面长度和倾角对于运输机铺设长度和 稳定性的要求 （2）运输机必须与采煤机能力相适应，要保证采煤机效能的发挥。 （3）要与支架和采煤机配套 （4）能在正常状态下随采煤机之后适当弯曲，并配有清扫浮煤装置，并使移置液压支架和拖动电缆方便。 3、液压支架 （1）要顶的住，它的初撑力和工作阻力要适应直接顶和老顶岩层移动所产生的压力（包括二次来压），使控顶区的顶板下沉限制