毕业论文-横轴式掘进机转运机构方案设计及其技术设计.doc

摘要 刮板输送机是目前长壁采煤工作面唯一的运输设备。虽然其类型和组成部件的形式多种多样，但基本组成与工作原理相同。一般的刮板输送机能在25°以下的条件使用。刮板输送机在使用要受拉、压、弯曲、冲击摩擦和腐蚀等多种作用，因此，必须有足够的强度、刚度、耐磨和耐腐蚀性。由于它的运输方式是物料和刮板都在槽内滑行，因此运行阻力和磨损都很大。但是，在采煤工作面运煤，目前还没有更好的机械可代替，只能从结构上、强度上和制造工艺上不断研究，使它更加完善、耐用。 Scraper conveyor is the longwall coal mining face the only transportation equipment. Although the type and composition of components in a variety of forms, but the basic composition and working principle of the same. The general function of scraper conveyor at 25° the following conditions of use. Scraper conveyor in use to tension, pressure, bending, impact friction and corrosion and so on the many kinds of function, therefore, must have enough strength, stiffness and wear resistance and corrosion resistance. Because it is the mode of transportation of materials and scraper chain in the slide groove, so running resistance and wear are very big. In coal mining working face coal, however, there is no better mechanical alternatives, only from the structure, intensity, and continuous research on manufacturing process, make it more perfect and durable. The design requirements for transport of horizontal shaft type machine machine organization design, main structure design of transport mechanism, parameters, the choice of power components, sprocket design calculation, design and calculation of the scraper chain sprocket wheel shaft and the design and calculation of the scraper etc design calculation. Key words: scraper conveyor; Sprocket; Sprocket shaft; Scraper chain; Scraper. 目录 1. 概述? 1 1.1 掘进机发展现状 1 1.1.1 纵轴式 2 1.1.2 横轴式 3 1.1.3 悬臂不可伸缩式 4 1.1.4 悬臂可伸缩式 4 1.2 刮板输送机发展现状 4 1.2.1 技术现状 4 1.2.2 刮板输送机的发展趋势 5 2 主要部件的结构和设计要求 7 2.1 链轮 8 2.2 中部槽及附属部件 9 2.3 刮板链 12 2.4 紧链装置 16 2.5设计任务及原始数据 19 3 总体方案的确定 21 3.1 刮板输送机运输能力计算 21 3.1.1 工作面刮板输送机的输送生产能力计算 21 3.1.2 溜槽上物料段面积计算 22 3.1.3 刮板输送机上的物料断面面积的计算 23 3.2 刮板输送机运行阻力的计算 23 3.2.1 每米长度上货载质量 23 3.2.2 运行阻力 23 3.3 刮板输送机链条张力和牵引力的计算及强度计算 25 3.3.1 计算各特殊点张力 25 3.3.2 刮板输送机两端链轮总牵引力 26 3.3.3 圆环链的选择计算 26 3.3.4 刮板链强度运算 27 3.4 液压马达的选择