计芳采煤机论文.doc

摘 要 对中厚煤层的开采在煤矿生产中有重大的经济利益，而采煤机的滚筒在开采过程中有相当重要的作用，其好坏直接影响到采煤的效率，基于此，本文对MG250/600-WD电牵引采煤机的滚筒进行了分析与设计。本文通过查阅文献、寻求指导老师帮助以及与同学合作的方式，对采煤机的工作原理、截割机构的传动和结构设计进行了阐述；对截割部中的各个轴的传动功率和转速进行了计算分析；对截齿的材料以及截齿的配置和固定、截割部减速器的润滑情况进行了文献查阅。通过以上工作的整合，得出滚筒中各主要零部件的尺寸和大体形状，并在autocad画图软件中体现出来。从而基本完成了毕业设计论文的要求，较为圆满的完成了任务。本论文通过图文并茂的形式更为直观的展现了设计思路和设计内容及成果，有较好的效果。 关键词：滚筒；截齿；采煤机 Abstract In the mining of thick coal seam in coal mine production is a major economic benefit, while the roller in the mining of coal mining machinery in the process to have very important function, its direct influence on the efficiency of coal mining, and based on this, the paper to MG250/600-WD electric traction shearer drum of the analysis and design. This article through the literature for guidance, the teachers help with classmates and cooperation way of coal winning machine, the working principle, cut cut the transmission and structure institutions design is discussed in this paper; For cutting part of each shaft power transmission and speed are calculated and analyzed; To cut tooth material and cut teeth configuration and fixed, cutting part of the gear lubrication literature inspection. Through the integration of the above work, it is concluded that the main parts in the drum of the size and overall shape, and drawing in autocad software reflected. Thus the basic completed the graduation design, the paper requirement, relatively satisfactory to finish the task. This paper, by illustrated form is more intuitive show the design way of thinking and the design content and result, have better effect. Keywords: Roller; Cut dentate; Coal mining machinery  目录 摘 要 I Abstract II 第一章 概述 1 1.1采煤机的发展历史 1 1.2采煤机的分类和组成 2 1.3主要用途及适用范围 3 第二章 采煤机的选型设计 6 2.1根据煤的坚硬度选型 6 2.2根据煤层厚度选型 6 2.3根据煤层倾角选型 7 2.4滚筒直径的确定 7 2.5滚筒转向和叶片的转向 9 2.6滚筒截深 11 2.7电机功率 11 2.8牵引力 14 2.9采煤机喷雾供水装置 15 第三章 技术特征 17 3.1采煤机具体参数 17 3.2采煤机截割部传动系统概述 18 3.3采煤机行走部概述 19 3.4采煤机电动机 19 结 论 21 参考文献 22 致 谢 23 第一章 概述 1.1采煤机的发展历史 80年代以来，滚筒式采煤机在结构、性能参数、