采煤机截割部结构设计.docVIP

摘 要 我国是一个产煤大国，煤炭也是我国最主要的能源，是保证我国国民经济飞速增长的重要物质基础。随着采煤机械化的发展，采煤机成为现在最主要的采煤机械。在我国，中、厚煤层资源分布广泛，煤质好。但机械化开采技术发展速度相对缓慢，随着大批煤矿中、厚煤层的资源开采增多,提高采煤机的工作效率也越来越重要。而采煤机截割部对于整台采煤机非常重要，因为截割机构是采煤机实现落煤、装煤的主要部件。 说明书主要论述了采煤机截割部机械主传动结构的设计与计算。截割部传动设计采用的是电动机输出动力经由三级直齿圆柱齿轮和行星机构减速，最后带动螺旋滚筒，实现采煤。在设计过程中，对截割部机械主传动结构中的齿轮、轴和轴承进行了设计计算、强度校核和选用，使采煤机的截割部机械主传动结构设计最终满足需要。 关键词：采煤机；截割机构；截割部；行星机构 Abstract China is a country with great coal. coal is Chinas main energy, also,it is the guarantee of our country national economy rapid growth of the important matter foundation. With the development of integrated mechanization coal mining machine, now the main coal mining machinery. In our country, in a widely distributed resource, thick coal seam, coal quality is good. But the mechanization mining technology relatively slow pace of development, with a large number of coal mines in the thick coal seam mining resources, increase work efficiency, enhances the coal mining machine is more and more important. The shearer cutting unit for a mining machine is very important, because the cutting mechanism of shearer is achieved, the main components of coal on coal. ?????The manual discusses the design and calculation of the main drive of the shearer cuttingthe Department of Mechanical structure. The cutting unit drive design uses the motoroutput power through three spur gear and planetary bodies slow down, and finally drivenspiral roller to achieve the coal. Structure of the cutting unit mechanical main drive gears, shafts and bearings in the design process, design calculations, strength check and selection, and ultimately meet the needs of the shearer cutting unit mechanical structural design of the main drive. Key words：Shearer; Cutting agency;Cutting Unit;Planetary bodies. 目 录 摘 要 I Abstract II 第1章 绪论 1 1.1 研究目的和意义 1 1.2 国内外采煤机的发展及趋势 1 1.2.1 国外采煤机的发展概况 1 1.2.2 国内采煤机的发展概况 2 1.3 研究/设计的目标 3 1.4 研究的主要内容 3 第2章 采煤机截割部的方案设计 4 2.1 采煤机截割部设计方案的制定 4 2.2 采煤机截割部设计方案的确定 5 第3章 截割部主传动参数确定 6 3